diff options
Diffstat (limited to 'arch')
32 files changed, 231 insertions, 2848 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 160accdbcb..826e346f98 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -84,6 +84,7 @@ config X86 select DM_GPIO select DM_SPI select DM_SPI_FLASH + select USB_EHCI_HCD config XTENSA bool "Xtensa architecture" diff --git a/arch/arm/cpu/arm926ejs/omap/Makefile b/arch/arm/cpu/arm926ejs/omap/Makefile deleted file mode 100644 index add923276c..0000000000 --- a/arch/arm/cpu/arm926ejs/omap/Makefile +++ /dev/null @@ -1,10 +0,0 @@ -# -# (C) Copyright 2000-2006 -# Wolfgang Denk, DENX Software Engineering, wd@denx.de. -# -# SPDX-License-Identifier: GPL-2.0+ -# - -obj-y = timer.o -obj-$(CONFIG_DISPLAY_CPUINFO) += cpuinfo.o -obj-y += reset.o diff --git a/arch/arm/cpu/arm926ejs/omap/cpuinfo.c b/arch/arm/cpu/arm926ejs/omap/cpuinfo.c deleted file mode 100644 index 587d99a2bb..0000000000 --- a/arch/arm/cpu/arm926ejs/omap/cpuinfo.c +++ /dev/null @@ -1,242 +0,0 @@ -/* - * OMAP1 CPU identification code - * - * Copyright (C) 2004 Nokia Corporation - * Written by Tony Lindgren <tony@atomide.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <common.h> -#include <command.h> -#include <linux/compiler.h> - -#if defined(CONFIG_OMAP) - -#define omap_readw(x) *(volatile unsigned short *)(x) -#define omap_readl(x) *(volatile unsigned long *)(x) - -#define OMAP_DIE_ID_0 0xfffe1800 -#define OMAP_DIE_ID_1 0xfffe1804 -#define OMAP_PRODUCTION_ID_0 0xfffe2000 -#define OMAP_PRODUCTION_ID_1 0xfffe2004 -#define OMAP32_ID_0 0xfffed400 -#define OMAP32_ID_1 0xfffed404 - -struct omap_id { - u16 jtag_id; /* Used to determine OMAP type */ - u8 die_rev; /* Processor revision */ - u32 omap_id; /* OMAP revision */ - u32 type; /* Cpu id bits [31:08], cpu class bits [07:00] */ -}; - -/* Register values to detect the OMAP version */ -static struct omap_id omap_ids[] = { - { .jtag_id = 0xb574, .die_rev = 0x2, .omap_id = 0x03310315, .type = 0x03100000}, - { .jtag_id = 0x355f, .die_rev = 0x0, .omap_id = 0x03320000, .type = 0x07300100}, - { .jtag_id = 0xb55f, .die_rev = 0x0, .omap_id = 0x03320000, .type = 0x07300300}, - { .jtag_id = 0xb470, .die_rev = 0x0, .omap_id = 0x03310100, .type = 0x15100000}, - { .jtag_id = 0xb576, .die_rev = 0x0, .omap_id = 0x03320000, .type = 0x16100000}, - { .jtag_id = 0xb576, .die_rev = 0x2, .omap_id = 0x03320100, .type = 0x16110000}, - { .jtag_id = 0xb576, .die_rev = 0x3, .omap_id = 0x03320100, .type = 0x16100c00}, - { .jtag_id = 0xb576, .die_rev = 0x0, .omap_id = 0x03320200, .type = 0x16100d00}, - { .jtag_id = 0xb613, .die_rev = 0x0, .omap_id = 0x03320300, .type = 0x1610ef00}, - { .jtag_id = 0xb613, .die_rev = 0x0, .omap_id = 0x03320300, .type = 0x1610ef00}, - { .jtag_id = 0xb576, .die_rev = 0x1, .omap_id = 0x03320100, .type = 0x16110000}, - { .jtag_id = 0xb58c, .die_rev = 0x2, .omap_id = 0x03320200, .type = 0x16110b00}, - { .jtag_id = 0xb58c, .die_rev = 0x3, .omap_id = 0x03320200, .type = 0x16110c00}, - { .jtag_id = 0xb65f, .die_rev = 0x0, .omap_id = 0x03320400, .type = 0x16212300}, - { .jtag_id = 0xb65f, .die_rev = 0x1, .omap_id = 0x03320400, .type = 0x16212300}, - { .jtag_id = 0xb65f, .die_rev = 0x1, .omap_id = 0x03320500, .type = 0x16212300}, - { .jtag_id = 0xb5f7, .die_rev = 0x0, .omap_id = 0x03330000, .type = 0x17100000}, - { .jtag_id = 0xb5f7, .die_rev = 0x1, .omap_id = 0x03330100, .type = 0x17100000}, - { .jtag_id = 0xb5f7, .die_rev = 0x2, .omap_id = 0x03330100, .type = 0x17100000}, -}; - -/* - * Get OMAP type from PROD_ID. - * 1710 has the PROD_ID in bits 15:00, not in 16:01 as documented in TRM. - * 1510 PROD_ID is empty, and 1610 PROD_ID does not make sense. - * Undocumented register in TEST BLOCK is used as fallback; This seems to - * work on 1510, 1610 & 1710. The official way hopefully will work in future - * processors. - */ -static u16 omap_get_jtag_id(void) -{ - u32 prod_id, omap_id; - - prod_id = omap_readl(OMAP_PRODUCTION_ID_1); - omap_id = omap_readl(OMAP32_ID_1); - - /* Check for unusable OMAP_PRODUCTION_ID_1 on 1611B/5912 and 730 */ - if (((prod_id >> 20) == 0) || (prod_id == omap_id)) - prod_id = 0; - else - prod_id &= 0xffff; - - if (prod_id) - return prod_id; - - /* Use OMAP32_ID_1 as fallback */ - prod_id = ((omap_id >> 12) & 0xffff); - - return prod_id; -} - -/* - * Get OMAP revision from DIE_REV. - * Early 1710 processors may have broken OMAP_DIE_ID, it contains PROD_ID. - * Undocumented register in the TEST BLOCK is used as fallback. - * REVISIT: This does not seem to work on 1510 - */ -static u8 omap_get_die_rev(void) -{ - u32 die_rev; - - die_rev = omap_readl(OMAP_DIE_ID_1); - - /* Check for broken OMAP_DIE_ID on early 1710 */ - if (((die_rev >> 12) & 0xffff) == omap_get_jtag_id()) - die_rev = 0; - - die_rev = (die_rev >> 17) & 0xf; - if (die_rev) - return die_rev; - - die_rev = (omap_readl(OMAP32_ID_1) >> 28) & 0xf; - - return die_rev; -} - -static unsigned long dpll1(void) -{ - unsigned short pll_ctl_val = omap_readw(DPLL_CTL_REG); - unsigned long rate; - - rate = CONFIG_SYS_CLK_FREQ; /* Base xtal rate */ - if (pll_ctl_val & 0x10) { - /* PLL enabled, apply multiplier and divisor */ - if (pll_ctl_val & 0xf80) - rate *= (pll_ctl_val & 0xf80) >> 7; - rate /= ((pll_ctl_val & 0x60) >> 5) + 1; - } else { - /* PLL disabled, apply bypass divisor */ - switch (pll_ctl_val & 0xc) { - case 0: - break; - case 0x4: - rate /= 2; - break; - default: - rate /= 4; - break; - } - } - - return rate; -} - -static unsigned long armcore(void) -{ - unsigned short arm_ckctl = omap_readw(ARM_CKCTL); - - return (dpll1() >> ((arm_ckctl & 0x0030) >> 4)); -} - -int print_cpuinfo (void) -{ - int i; - u16 jtag_id; - u8 die_rev; - u32 omap_id; - u8 cpu_type; - __maybe_unused u32 system_serial_high; - __maybe_unused u32 system_serial_low; - u32 system_rev = 0; - - jtag_id = omap_get_jtag_id(); - die_rev = omap_get_die_rev(); - omap_id = omap_readl(OMAP32_ID_0); - -#ifdef DEBUG - printf("OMAP_DIE_ID_0: 0x%08x\n", omap_readl(OMAP_DIE_ID_0)); - printf("OMAP_DIE_ID_1: 0x%08x DIE_REV: %i\n", - omap_readl(OMAP_DIE_ID_1), - (omap_readl(OMAP_DIE_ID_1) >> 17) & 0xf); - printf("OMAP_PRODUCTION_ID_0: 0x%08x\n", omap_readl(OMAP_PRODUCTION_ID_0)); - printf("OMAP_PRODUCTION_ID_1: 0x%08x JTAG_ID: 0x%04x\n", - omap_readl(OMAP_PRODUCTION_ID_1), - omap_readl(OMAP_PRODUCTION_ID_1) & 0xffff); - printf("OMAP32_ID_0: 0x%08x\n", omap_readl(OMAP32_ID_0)); - printf("OMAP32_ID_1: 0x%08x\n", omap_readl(OMAP32_ID_1)); - printf("JTAG_ID: 0x%04x DIE_REV: %i\n", jtag_id, die_rev); -#endif - - system_serial_high = omap_readl(OMAP_DIE_ID_0); - system_serial_low = omap_readl(OMAP_DIE_ID_1); - - /* First check only the major version in a safe way */ - for (i = 0; i < ARRAY_SIZE(omap_ids); i++) { - if (jtag_id == (omap_ids[i].jtag_id)) { - system_rev = omap_ids[i].type; - break; - } - } - - /* Check if we can find the die revision */ - for (i = 0; i < ARRAY_SIZE(omap_ids); i++) { - if (jtag_id == omap_ids[i].jtag_id && die_rev == omap_ids[i].die_rev) { - system_rev = omap_ids[i].type; - break; - } - } - - /* Finally check also the omap_id */ - for (i = 0; i < ARRAY_SIZE(omap_ids); i++) { - if (jtag_id == omap_ids[i].jtag_id - && die_rev == omap_ids[i].die_rev - && omap_id == omap_ids[i].omap_id) { - system_rev = omap_ids[i].type; - break; - } - } - - /* Add the cpu class info (7xx, 15xx, 16xx, 24xx) */ - cpu_type = system_rev >> 24; - - switch (cpu_type) { - case 0x07: - system_rev |= 0x07; - break; - case 0x03: - case 0x15: - system_rev |= 0x15; - break; - case 0x16: - case 0x17: - system_rev |= 0x16; - break; - case 0x24: - system_rev |= 0x24; - break; - default: - printf("Unknown OMAP cpu type: 0x%02x\n", cpu_type); - } - - printf("CPU: OMAP%04x", system_rev >> 16); - if ((system_rev >> 8) & 0xff) - printf("%x", (system_rev >> 8) & 0xff); -#ifdef DEBUG - printf(" revision %i handled as %02xxx id: %08x%08x", - die_rev, system_rev & 0xff, system_serial_low, system_serial_high); -#endif - printf(" at %ld.%01ld MHz (DPLL1=%ld.%01ld MHz)\n", - armcore() / 1000000, (armcore() / 100000) % 10, - dpll1() / 1000000, (dpll1() / 100000) % 10); - - return 0; -} - -#endif /* #if defined(CONFIG_OMAP) */ diff --git a/arch/arm/cpu/arm926ejs/omap/reset.S b/arch/arm/cpu/arm926ejs/omap/reset.S deleted file mode 100644 index 1c557b0d91..0000000000 --- a/arch/arm/cpu/arm926ejs/omap/reset.S +++ /dev/null @@ -1,29 +0,0 @@ -/* - * armboot - Startup Code for ARM926EJS CPU-core - * - * Copyright (c) 2003 Texas Instruments - * - * ----- Adapted for OMAP1610 OMAP730 from ARM925t code ------ - * - * Copyright (c) 2001 Marius Gröger <mag@sysgo.de> - * Copyright (c) 2002 Alex Züpke <azu@sysgo.de> - * Copyright (c) 2002 Gary Jennejohn <garyj@denx.de> - * Copyright (c) 2003 Richard Woodruff <r-woodruff2@ti.com> - * Copyright (c) 2003 Kshitij <kshitij@ti.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - - .align 5 -.globl reset_cpu -reset_cpu: - ldr r1, rstctl1 /* get clkm1 reset ctl */ - mov r3, #0x0 - strh r3, [r1] /* clear it */ - mov r3, #0x8 - strh r3, [r1] /* force dsp+arm reset */ -_loop_forever: - b _loop_forever - -rstctl1: - .word 0xfffece10 diff --git a/arch/arm/cpu/arm926ejs/omap/timer.c b/arch/arm/cpu/arm926ejs/omap/timer.c deleted file mode 100644 index b9715656c8..0000000000 --- a/arch/arm/cpu/arm926ejs/omap/timer.c +++ /dev/null @@ -1,152 +0,0 @@ -/* - * (C) Copyright 2003 - * Texas Instruments <www.ti.com> - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.de> - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Alex Zuepke <azu@sysgo.de> - * - * (C) Copyright 2002-2004 - * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de> - * - * (C) Copyright 2004 - * Philippe Robin, ARM Ltd. <philippe.robin@arm.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/io.h> - -#define TIMER_CLOCK (CONFIG_SYS_CLK_FREQ / (2 << CONFIG_SYS_PTV)) -#define TIMER_LOAD_VAL 0xffffffff - -/* macro to read the 32 bit timer */ -#define READ_TIMER readl(CONFIG_SYS_TIMERBASE+8) \ - / (TIMER_CLOCK / CONFIG_SYS_HZ) - -DECLARE_GLOBAL_DATA_PTR; - -#define timestamp gd->arch.tbl -#define lastdec gd->arch.lastinc - -int timer_init (void) -{ - int32_t val; - - /* Start the decrementer ticking down from 0xffffffff */ - *((int32_t *) (CONFIG_SYS_TIMERBASE + LOAD_TIM)) = TIMER_LOAD_VAL; - val = MPUTIM_ST | MPUTIM_AR | MPUTIM_CLOCK_ENABLE | (CONFIG_SYS_PTV << MPUTIM_PTV_BIT); - *((int32_t *) (CONFIG_SYS_TIMERBASE + CNTL_TIMER)) = val; - - /* init the timestamp and lastdec value */ - reset_timer_masked(); - - return 0; -} - -/* - * timer without interrupts - */ -ulong get_timer (ulong base) -{ - return get_timer_masked () - base; -} - -/* delay x useconds AND preserve advance timestamp value */ -void __udelay (unsigned long usec) -{ - ulong tmo, tmp; - - if(usec >= 1000){ /* if "big" number, spread normalization to seconds */ - tmo = usec / 1000; /* start to normalize for usec to ticks per sec */ - tmo *= CONFIG_SYS_HZ; /* find number of "ticks" to wait to achieve target */ - tmo /= 1000; /* finish normalize. */ - }else{ /* else small number, don't kill it prior to HZ multiply */ - tmo = usec * CONFIG_SYS_HZ; - tmo /= (1000*1000); - } - - tmp = get_timer (0); /* get current timestamp */ - if( (tmo + tmp + 1) < tmp ) /* if setting this fordward will roll time stamp */ - reset_timer_masked (); /* reset "advancing" timestamp to 0, set lastdec value */ - else - tmo += tmp; /* else, set advancing stamp wake up time */ - - while (get_timer_masked () < tmo)/* loop till event */ - /*NOP*/; -} - -void reset_timer_masked (void) -{ - /* reset time */ - lastdec = READ_TIMER; /* capure current decrementer value time */ - timestamp = 0; /* start "advancing" time stamp from 0 */ -} - -ulong get_timer_masked (void) -{ - ulong now = READ_TIMER; /* current tick value */ - - if (lastdec >= now) { /* normal mode (non roll) */ - /* normal mode */ - timestamp += lastdec - now; /* move stamp fordward with absoulte diff ticks */ - } else { /* we have overflow of the count down timer */ - /* nts = ts + ld + (TLV - now) - * ts=old stamp, ld=time that passed before passing through -1 - * (TLV-now) amount of time after passing though -1 - * nts = new "advancing time stamp"...it could also roll and cause problems. - */ - timestamp += lastdec + (TIMER_LOAD_VAL / (TIMER_CLOCK / - CONFIG_SYS_HZ)) - now; - } - lastdec = now; - - return timestamp; -} - -/* waits specified delay value and resets timestamp */ -void udelay_masked (unsigned long usec) -{ - ulong tmo; - ulong endtime; - signed long diff; - - if (usec >= 1000) { /* if "big" number, spread normalization to seconds */ - tmo = usec / 1000; /* start to normalize for usec to ticks per sec */ - tmo *= CONFIG_SYS_HZ; /* find number of "ticks" to wait to achieve target */ - tmo /= 1000; /* finish normalize. */ - } else { /* else small number, don't kill it prior to HZ multiply */ - tmo = usec * CONFIG_SYS_HZ; - tmo /= (1000*1000); - } - - endtime = get_timer_masked () + tmo; - - do { - ulong now = get_timer_masked (); - diff = endtime - now; - } while (diff >= 0); -} - -/* - * This function is derived from PowerPC code (read timebase as long long). - * On ARM it just returns the timer value. - */ -unsigned long long get_ticks(void) -{ - return get_timer(0); -} - -/* - * This function is derived from PowerPC code (timebase clock frequency). - * On ARM it returns the number of timer ticks per second. - */ -ulong get_tbclk (void) -{ - return CONFIG_SYS_HZ; -} diff --git a/arch/arm/cpu/armv8/start.S b/arch/arm/cpu/armv8/start.S index 62d97f7e88..354468b905 100644 --- a/arch/arm/cpu/armv8/start.S +++ b/arch/arm/cpu/armv8/start.S @@ -86,12 +86,12 @@ save_boot_params_ret: 0: /* - * Enalbe SMPEN bit for coherency. + * Enable SMPEN bit for coherency. * This register is not architectural but at the moment * this bit should be set for A53/A57/A72. */ #ifdef CONFIG_ARMV8_SET_SMPEN - mrs x0, S3_1_c15_c2_1 /* cpuactlr_el1 */ + mrs x0, S3_1_c15_c2_1 /* cpuectlr_el1 */ orr x0, x0, #0x40 msr S3_1_c15_c2_1, x0 #endif diff --git a/arch/arm/include/asm/arch-armada100/config.h b/arch/arm/include/asm/arch-armada100/config.h index 6ebc759f4b..113e1c73f3 100644 --- a/arch/arm/include/asm/arch-armada100/config.h +++ b/arch/arm/include/asm/arch-armada100/config.h @@ -24,17 +24,5 @@ #define MV_UART_CONSOLE_BASE ARMD1_UART1_BASE #define CONFIG_SYS_NS16550_IER (1 << 6) /* Bit 6 in UART_IER register represents UART Unit Enable */ -/* - * I2C definition - */ -#ifdef CONFIG_CMD_I2C -#define CONFIG_I2C_MV 1 -#define CONFIG_MV_I2C_NUM 2 -#define CONFIG_I2C_MULTI_BUS 1 -#define CONFIG_MV_I2C_REG {0xd4011000, 0xd4025000} -#define CONFIG_HARD_I2C 1 -#define CONFIG_SYS_I2C_SPEED 0 -#define CONFIG_SYS_I2C_SLAVE 0xfe -#endif #endif /* _ARMD1_CONFIG_H */ diff --git a/arch/arm/include/asm/arch-mx7ulp/clock.h b/arch/arm/include/asm/arch-mx7ulp/clock.h index 170a9b3a7c..6424fafe14 100644 --- a/arch/arm/include/asm/arch-mx7ulp/clock.h +++ b/arch/arm/include/asm/arch-mx7ulp/clock.h @@ -34,7 +34,7 @@ u32 imx_get_i2cclk(unsigned i2c_num); #ifdef CONFIG_MXC_OCOTP void enable_ocotp_clk(unsigned char enable); #endif -#ifdef CONFIG_USB_EHCI +#ifdef CONFIG_USB_EHCI_HCD void enable_usboh3_clk(unsigned char enable); #endif void init_clk_usdhc(u32 index); diff --git a/arch/arm/include/asm/arch-omap5/clock.h b/arch/arm/include/asm/arch-omap5/clock.h index 7ea7199f2b..0c99bbdc93 100644 --- a/arch/arm/include/asm/arch-omap5/clock.h +++ b/arch/arm/include/asm/arch-omap5/clock.h @@ -370,13 +370,6 @@ #define DPLL_NO_LOCK 0 #define DPLL_LOCK 1 -/* - * MAX value for PRM_RSTTIME[9:0]RSTTIME1 stored is 0x3ff. - * 0x3ff is in the no of FUNC_32K_CLK cycles. Converting cycles - * into microsec and passing the value. - */ -#define CONFIG_DEFAULT_OMAP_RESET_TIME_MAX_USEC 31219 - #if defined(CONFIG_DRA7XX) #define V_OSCK 20000000 /* Clock output from T2 */ #else diff --git a/arch/arm/include/asm/arch-sunxi/clock_sun6i.h b/arch/arm/include/asm/arch-sunxi/clock_sun6i.h index faa14791f9..d328df9597 100644 --- a/arch/arm/include/asm/arch-sunxi/clock_sun6i.h +++ b/arch/arm/include/asm/arch-sunxi/clock_sun6i.h @@ -84,7 +84,8 @@ struct sunxi_ccm_reg { u32 lcd0_ch0_clk_cfg; /* 0x118 LCD0 CH0 module clock */ u32 lcd1_ch0_clk_cfg; /* 0x11c LCD1 CH0 module clock */ #endif - u32 reserved14[3]; + u32 tve_clk_cfg; /* 0x120 H3/H5 TVE module clock */ + u32 reserved14[2]; u32 lcd0_ch1_clk_cfg; /* 0x12c LCD0 CH1 module clock */ u32 lcd1_ch1_clk_cfg; /* 0x130 LCD1 CH1 module clock */ u32 csi0_clk_cfg; /* 0x134 CSI0 module clock */ @@ -307,6 +308,7 @@ struct sunxi_ccm_reg { #define AHB_GATE_OFFSET_DE_BE0 12 #define AHB_GATE_OFFSET_DE 12 #define AHB_GATE_OFFSET_HDMI 11 +#define AHB_GATE_OFFSET_TVE 9 #ifndef CONFIG_SUNXI_DE2 #define AHB_GATE_OFFSET_LCD1 5 #define AHB_GATE_OFFSET_LCD0 4 @@ -415,6 +417,9 @@ struct sunxi_ccm_reg { #define CCM_HDMI_SLOW_CTRL_DDC_GATE (1 << 31) +#define CCM_TVE_CTRL_GATE (0x1 << 31) +#define CCM_TVE_CTRL_M(n) ((((n) - 1) & 0xf) << 0) + #if defined(CONFIG_MACH_SUN50I) #define MBUS_CLK_DEFAULT 0x81000002 /* PLL6x2 / 3 */ #elif defined(CONFIG_MACH_SUN8I) @@ -448,6 +453,7 @@ struct sunxi_ccm_reg { #define AHB_RESET_OFFSET_DE 12 #define AHB_RESET_OFFSET_HDMI 11 #define AHB_RESET_OFFSET_HDMI2 10 +#define AHB_RESET_OFFSET_TVE 9 #ifndef CONFIG_SUNXI_DE2 #define AHB_RESET_OFFSET_LCD1 5 #define AHB_RESET_OFFSET_LCD0 4 diff --git a/arch/arm/include/asm/arch-sunxi/display.h b/arch/arm/include/asm/arch-sunxi/display.h index 93803addfb..e10197784e 100644 --- a/arch/arm/include/asm/arch-sunxi/display.h +++ b/arch/arm/include/asm/arch-sunxi/display.h @@ -225,52 +225,6 @@ struct sunxi_hdmi_reg { }; /* - * This is based on the A10s User Manual, and the A10s only supports - * composite video and not vga like the A10 / A20 does, still other - * than the removed vga out capability the tvencoder seems to be the same. - * "unknown#" registers are registers which are used in the A10 kernel code, - * but not documented in the A10s User Manual. - */ -struct sunxi_tve_reg { - u32 gctrl; /* 0x000 */ - u32 cfg0; /* 0x004 */ - u32 dac_cfg0; /* 0x008 */ - u32 filter; /* 0x00c */ - u32 chroma_freq; /* 0x010 */ - u32 porch_num; /* 0x014 */ - u32 unknown0; /* 0x018 */ - u32 line_num; /* 0x01c */ - u32 blank_black_level; /* 0x020 */ - u32 unknown1; /* 0x024, seems to be 1 byte per dac */ - u8 res0[0x08]; /* 0x028 */ - u32 auto_detect_en; /* 0x030 */ - u32 auto_detect_int_status; /* 0x034 */ - u32 auto_detect_status; /* 0x038 */ - u32 auto_detect_debounce; /* 0x03c */ - u32 csc_reg0; /* 0x040 */ - u32 csc_reg1; /* 0x044 */ - u32 csc_reg2; /* 0x048 */ - u32 csc_reg3; /* 0x04c */ - u8 res1[0xb0]; /* 0x050 */ - u32 color_burst; /* 0x100 */ - u32 vsync_num; /* 0x104 */ - u32 notch_freq; /* 0x108 */ - u32 cbr_level; /* 0x10c */ - u32 burst_phase; /* 0x110 */ - u32 burst_width; /* 0x114 */ - u32 unknown2; /* 0x118 */ - u32 sync_vbi_level; /* 0x11c */ - u32 white_level; /* 0x120 */ - u32 active_num; /* 0x124 */ - u32 chroma_bw_gain; /* 0x128 */ - u32 notch_width; /* 0x12c */ - u32 resync_num; /* 0x130 */ - u32 slave_para; /* 0x134 */ - u32 cfg1; /* 0x138 */ - u32 cfg2; /* 0x13c */ -}; - -/* * DE-FE register constants. */ #define SUNXI_DE_FE_WIDTH(x) (((x) - 1) << 0) @@ -394,67 +348,6 @@ struct sunxi_tve_reg { #define SUNXI_HMDI_DDC_LINE_CTRL_SCL_ENABLE (1 << 8) #define SUNXI_HMDI_DDC_LINE_CTRL_SDA_ENABLE (1 << 9) -/* - * TVE register constants. - */ -#define SUNXI_TVE_GCTRL_ENABLE (1 << 0) -/* - * Select input 0 to disable dac, 1 - 4 to feed dac from tve0, 5 - 8 to feed - * dac from tve1. When using tve1 the mux value must be written to both tve0's - * and tve1's gctrl reg. - */ -#define SUNXI_TVE_GCTRL_DAC_INPUT_MASK(dac) (0xf << (((dac) + 1) * 4)) -#define SUNXI_TVE_GCTRL_DAC_INPUT(dac, sel) ((sel) << (((dac) + 1) * 4)) -#define SUNXI_TVE_CFG0_VGA 0x20000000 -#define SUNXI_TVE_CFG0_PAL 0x07030001 -#define SUNXI_TVE_CFG0_NTSC 0x07030000 -#define SUNXI_TVE_DAC_CFG0_VGA 0x403e1ac7 -#ifdef CONFIG_MACH_SUN5I -#define SUNXI_TVE_DAC_CFG0_COMPOSITE 0x433f0009 -#else -#define SUNXI_TVE_DAC_CFG0_COMPOSITE 0x403f0008 -#endif -#define SUNXI_TVE_FILTER_COMPOSITE 0x00000120 -#define SUNXI_TVE_CHROMA_FREQ_PAL_M 0x21e6efe3 -#define SUNXI_TVE_CHROMA_FREQ_PAL_NC 0x21f69446 -#define SUNXI_TVE_PORCH_NUM_PAL 0x008a0018 -#define SUNXI_TVE_PORCH_NUM_NTSC 0x00760020 -#define SUNXI_TVE_LINE_NUM_PAL 0x00160271 -#define SUNXI_TVE_LINE_NUM_NTSC 0x0016020d -#define SUNXI_TVE_BLANK_BLACK_LEVEL_PAL 0x00fc00fc -#define SUNXI_TVE_BLANK_BLACK_LEVEL_NTSC 0x00f0011a -#define SUNXI_TVE_UNKNOWN1_VGA 0x00000000 -#define SUNXI_TVE_UNKNOWN1_COMPOSITE 0x18181818 -#define SUNXI_TVE_AUTO_DETECT_EN_DET_EN(dac) (1 << ((dac) + 0)) -#define SUNXI_TVE_AUTO_DETECT_EN_INT_EN(dac) (1 << ((dac) + 16)) -#define SUNXI_TVE_AUTO_DETECT_INT_STATUS(dac) (1 << ((dac) + 0)) -#define SUNXI_TVE_AUTO_DETECT_STATUS_SHIFT(dac) ((dac) * 8) -#define SUNXI_TVE_AUTO_DETECT_STATUS_MASK(dac) (3 << ((dac) * 8)) -#define SUNXI_TVE_AUTO_DETECT_STATUS_NONE 0 -#define SUNXI_TVE_AUTO_DETECT_STATUS_CONNECTED 1 -#define SUNXI_TVE_AUTO_DETECT_STATUS_SHORT_GND 3 -#define SUNXI_TVE_AUTO_DETECT_DEBOUNCE_SHIFT(d) ((d) * 8) -#define SUNXI_TVE_AUTO_DETECT_DEBOUNCE_MASK(d) (0xf << ((d) * 8)) -#define SUNXI_TVE_CSC_REG0_ENABLE (1 << 31) -#define SUNXI_TVE_CSC_REG0 0x08440832 -#define SUNXI_TVE_CSC_REG1 0x3b6dace1 -#define SUNXI_TVE_CSC_REG2 0x0e1d13dc -#define SUNXI_TVE_CSC_REG3 0x00108080 -#define SUNXI_TVE_COLOR_BURST_PAL_M 0x00000000 -#define SUNXI_TVE_CBR_LEVEL_PAL 0x00002828 -#define SUNXI_TVE_CBR_LEVEL_NTSC 0x0000004f -#define SUNXI_TVE_BURST_PHASE_NTSC 0x00000000 -#define SUNXI_TVE_BURST_WIDTH_COMPOSITE 0x0016447e -#define SUNXI_TVE_UNKNOWN2_PAL 0x0000e0e0 -#define SUNXI_TVE_UNKNOWN2_NTSC 0x0000a0a0 -#define SUNXI_TVE_SYNC_VBI_LEVEL_NTSC 0x001000f0 -#define SUNXI_TVE_ACTIVE_NUM_COMPOSITE 0x000005a0 -#define SUNXI_TVE_CHROMA_BW_GAIN_COMP 0x00000002 -#define SUNXI_TVE_NOTCH_WIDTH_COMPOSITE 0x00000101 -#define SUNXI_TVE_RESYNC_NUM_PAL 0x800d000c -#define SUNXI_TVE_RESYNC_NUM_NTSC 0x000e000c -#define SUNXI_TVE_SLAVE_PARA_COMPOSITE 0x00000000 - int sunxi_simplefb_setup(void *blob); #endif /* _SUNXI_DISPLAY_H */ diff --git a/arch/arm/include/asm/arch-sunxi/tve.h b/arch/arm/include/asm/arch-sunxi/tve.h new file mode 100644 index 0000000000..41a14a68e4 --- /dev/null +++ b/arch/arm/include/asm/arch-sunxi/tve.h @@ -0,0 +1,131 @@ +/* + * Sunxi TV encoder register and constant defines + * + * (C) Copyright 2014 Hans de Goede <hdegoede@redhat.com> + * (C) Copyright 2017 Jernej Skrabec <jernej.skrabec@siol.net> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _TVE_H +#define _TVE_H + +enum tve_mode { + tve_mode_vga, + tve_mode_composite_pal, + tve_mode_composite_ntsc, + tve_mode_composite_pal_m, + tve_mode_composite_pal_nc, +}; + +/* + * This is based on the A10s User Manual, and the A10s only supports + * composite video and not vga like the A10 / A20 does, still other + * than the removed vga out capability the tvencoder seems to be the same. + * "unknown#" registers are registers which are used in the A10 kernel code, + * but not documented in the A10s User Manual. + */ +struct sunxi_tve_reg { + u32 gctrl; /* 0x000 */ + u32 cfg0; /* 0x004 */ + u32 dac_cfg0; /* 0x008 */ + u32 filter; /* 0x00c */ + u32 chroma_freq; /* 0x010 */ + u32 porch_num; /* 0x014 */ + u32 unknown0; /* 0x018 */ + u32 line_num; /* 0x01c */ + u32 blank_black_level; /* 0x020 */ + u32 unknown1; /* 0x024, seems to be 1 byte per dac */ + u8 res0[0x08]; /* 0x028 */ + u32 auto_detect_en; /* 0x030 */ + u32 auto_detect_int_status; /* 0x034 */ + u32 auto_detect_status; /* 0x038 */ + u32 auto_detect_debounce; /* 0x03c */ + u32 csc_reg0; /* 0x040 */ + u32 csc_reg1; /* 0x044 */ + u32 csc_reg2; /* 0x048 */ + u32 csc_reg3; /* 0x04c */ + u8 res1[0xb0]; /* 0x050 */ + u32 color_burst; /* 0x100 */ + u32 vsync_num; /* 0x104 */ + u32 notch_freq; /* 0x108 */ + u32 cbr_level; /* 0x10c */ + u32 burst_phase; /* 0x110 */ + u32 burst_width; /* 0x114 */ + u32 unknown2; /* 0x118 */ + u32 sync_vbi_level; /* 0x11c */ + u32 white_level; /* 0x120 */ + u32 active_num; /* 0x124 */ + u32 chroma_bw_gain; /* 0x128 */ + u32 notch_width; /* 0x12c */ + u32 resync_num; /* 0x130 */ + u32 slave_para; /* 0x134 */ + u32 cfg1; /* 0x138 */ + u32 cfg2; /* 0x13c */ +}; + +/* + * TVE register constants. + */ +#define SUNXI_TVE_GCTRL_ENABLE (1 << 0) +/* + * Select input 0 to disable dac, 1 - 4 to feed dac from tve0, 5 - 8 to feed + * dac from tve1. When using tve1 the mux value must be written to both tve0's + * and tve1's gctrl reg. + */ +#define SUNXI_TVE_GCTRL_DAC_INPUT_MASK(dac) (0xf << (((dac) + 1) * 4)) +#define SUNXI_TVE_GCTRL_DAC_INPUT(dac, sel) ((sel) << (((dac) + 1) * 4)) +#define SUNXI_TVE_CFG0_VGA 0x20000000 +#define SUNXI_TVE_CFG0_PAL 0x07030001 +#define SUNXI_TVE_CFG0_NTSC 0x07030000 +#define SUNXI_TVE_DAC_CFG0_VGA 0x403e1ac7 +#ifdef CONFIG_MACH_SUN5I +#define SUNXI_TVE_DAC_CFG0_COMPOSITE 0x433f0009 +#else +#define SUNXI_TVE_DAC_CFG0_COMPOSITE 0x403f0008 +#endif +#define SUNXI_TVE_FILTER_COMPOSITE 0x00000120 +#define SUNXI_TVE_CHROMA_FREQ_PAL_M 0x21e6efe3 +#define SUNXI_TVE_CHROMA_FREQ_PAL_NC 0x21f69446 +#define SUNXI_TVE_PORCH_NUM_PAL 0x008a0018 +#define SUNXI_TVE_PORCH_NUM_NTSC 0x00760020 +#define SUNXI_TVE_LINE_NUM_PAL 0x00160271 +#define SUNXI_TVE_LINE_NUM_NTSC 0x0016020d +#define SUNXI_TVE_BLANK_BLACK_LEVEL_PAL 0x00fc00fc +#define SUNXI_TVE_BLANK_BLACK_LEVEL_NTSC 0x00f0011a +#define SUNXI_TVE_UNKNOWN1_VGA 0x00000000 +#define SUNXI_TVE_UNKNOWN1_COMPOSITE 0x18181818 +#define SUNXI_TVE_AUTO_DETECT_EN_DET_EN(dac) (1 << ((dac) + 0)) +#define SUNXI_TVE_AUTO_DETECT_EN_INT_EN(dac) (1 << ((dac) + 16)) +#define SUNXI_TVE_AUTO_DETECT_INT_STATUS(dac) (1 << ((dac) + 0)) +#define SUNXI_TVE_AUTO_DETECT_STATUS_SHIFT(dac) ((dac) * 8) +#define SUNXI_TVE_AUTO_DETECT_STATUS_MASK(dac) (3 << ((dac) * 8)) +#define SUNXI_TVE_AUTO_DETECT_STATUS_NONE 0 +#define SUNXI_TVE_AUTO_DETECT_STATUS_CONNECTED 1 +#define SUNXI_TVE_AUTO_DETECT_STATUS_SHORT_GND 3 +#define SUNXI_TVE_AUTO_DETECT_DEBOUNCE_SHIFT(d) ((d) * 8) +#define SUNXI_TVE_AUTO_DETECT_DEBOUNCE_MASK(d) (0xf << ((d) * 8)) +#define SUNXI_TVE_CSC_REG0_ENABLE (1 << 31) +#define SUNXI_TVE_CSC_REG0 0x08440832 +#define SUNXI_TVE_CSC_REG1 0x3b6dace1 +#define SUNXI_TVE_CSC_REG2 0x0e1d13dc +#define SUNXI_TVE_CSC_REG3 0x00108080 +#define SUNXI_TVE_COLOR_BURST_PAL_M 0x00000000 +#define SUNXI_TVE_CBR_LEVEL_PAL 0x00002828 +#define SUNXI_TVE_CBR_LEVEL_NTSC 0x0000004f +#define SUNXI_TVE_BURST_PHASE_NTSC 0x00000000 +#define SUNXI_TVE_BURST_WIDTH_COMPOSITE 0x0016447e +#define SUNXI_TVE_UNKNOWN2_PAL 0x0000e0e0 +#define SUNXI_TVE_UNKNOWN2_NTSC 0x0000a0a0 +#define SUNXI_TVE_SYNC_VBI_LEVEL_NTSC 0x001000f0 +#define SUNXI_TVE_ACTIVE_NUM_COMPOSITE 0x000005a0 +#define SUNXI_TVE_CHROMA_BW_GAIN_COMP 0x00000002 +#define SUNXI_TVE_NOTCH_WIDTH_COMPOSITE 0x00000101 +#define SUNXI_TVE_RESYNC_NUM_PAL 0x800d000c +#define SUNXI_TVE_RESYNC_NUM_NTSC 0x000e000c +#define SUNXI_TVE_SLAVE_PARA_COMPOSITE 0x00000000 + +void tvencoder_mode_set(struct sunxi_tve_reg * const tve, enum tve_mode mode); +void tvencoder_enable(struct sunxi_tve_reg * const tve); + +#endif /* _TVE_H */ diff --git a/arch/arm/include/asm/spl.h b/arch/arm/include/asm/spl.h index a0bda28104..5d7f7e6ec5 100644 --- a/arch/arm/include/asm/spl.h +++ b/arch/arm/include/asm/spl.h @@ -7,7 +7,7 @@ #ifndef _ASM_SPL_H_ #define _ASM_SPL_H_ -#if defined(CONFIG_OMAP) \ +#if defined(CONFIG_ARCH_OMAP2PLUS) \ || defined(CONFIG_EXYNOS4) || defined(CONFIG_EXYNOS5) \ || defined(CONFIG_EXYNOS4210) /* Platform-specific defines */ diff --git a/arch/arm/mach-at91/arm926ejs/at91sam9x5_devices.c b/arch/arm/mach-at91/arm926ejs/at91sam9x5_devices.c index 8de086efd6..a939b1fb8d 100644 --- a/arch/arm/mach-at91/arm926ejs/at91sam9x5_devices.c +++ b/arch/arm/mach-at91/arm926ejs/at91sam9x5_devices.c @@ -161,7 +161,7 @@ void at91_spi1_hw_init(unsigned long cs_mask) } #endif -#if defined(CONFIG_USB_OHCI_NEW) || defined(CONFIG_USB_EHCI) +#if defined(CONFIG_USB_OHCI_NEW) || defined(CONFIG_USB_EHCI_HCD) void at91_uhp_hw_init(void) { /* Enable VBus on UHP ports */ diff --git a/arch/arm/mach-kirkwood/include/mach/config.h b/arch/arm/mach-kirkwood/include/mach/config.h index b786df0aaf..c7beb58e80 100644 --- a/arch/arm/mach-kirkwood/include/mach/config.h +++ b/arch/arm/mach-kirkwood/include/mach/config.h @@ -89,7 +89,6 @@ * USB/EHCI */ #ifdef CONFIG_CMD_USB -#define CONFIG_USB_EHCI_MARVELL #define CONFIG_EHCI_IS_TDI #endif /* CONFIG_CMD_USB */ diff --git a/arch/arm/mach-omap2/omap3/Kconfig b/arch/arm/mach-omap2/omap3/Kconfig index 933fcba37c..7b298d671d 100644 --- a/arch/arm/mach-omap2/omap3/Kconfig +++ b/arch/arm/mach-omap2/omap3/Kconfig @@ -1,5 +1,21 @@ if OMAP34XX +# We only enable the clocks for the GPIO banks that a given board requies. +config OMAP3_GPIO_2 + bool + +config OMAP3_GPIO_3 + bool + +config OMAP3_GPIO_4 + bool + +config OMAP3_GPIO_5 + bool + +config OMAP3_GPIO_6 + bool + choice prompt "OMAP3 board select" optional @@ -9,18 +25,28 @@ config TARGET_AM3517_EVM config TARGET_MT_VENTOUX bool "TeeJet Mt.Ventoux" + select OMAP3_GPIO_4 + select OMAP3_GPIO_5 if USB_EHCI_HCD config TARGET_OMAP3_BEAGLE bool "TI OMAP3 BeagleBoard" select DM select DM_SERIAL select DM_GPIO + select OMAP3_GPIO_5 + select OMAP3_GPIO_6 config TARGET_CM_T35 bool "CompuLab CM-T3530 and CM-T3730 boards" + select OMAP3_GPIO_2 + select OMAP3_GPIO_5 + select OMAP3_GPIO_6 if LED_STATUS config TARGET_CM_T3517 bool "CompuLab CM-T3517 boards" + select OMAP3_GPIO_2 + select OMAP3_GPIO_5 + select OMAP3_GPIO_6 if LED_STATUS config TARGET_DEVKIT8000 bool "TimLL OMAP3 Devkit8000" @@ -36,12 +62,20 @@ config TARGET_OMAP3_IGEP00X0 select DM select DM_SERIAL select DM_GPIO + select OMAP3_GPIO_3 + select OMAP3_GPIO_5 + select OMAP3_GPIO_6 config TARGET_OMAP3_OVERO bool "OMAP35xx Gumstix Overo" select DM select DM_SERIAL select DM_GPIO + select OMAP3_GPIO_2 + select OMAP3_GPIO_3 + select OMAP3_GPIO_4 + select OMAP3_GPIO_5 + select OMAP3_GPIO_6 config TARGET_OMAP3_ZOOM1 bool "TI Zoom1" @@ -54,16 +88,22 @@ config TARGET_AM3517_CRANE config TARGET_OMAP3_PANDORA bool "OMAP3 Pandora" + select OMAP3_GPIO_4 + select OMAP3_GPIO_6 config TARGET_ECO5PK bool "ECO5PK" + select OMAP3_GPIO_5 if USB_EHCI_HCD config TARGET_TRICORDER bool "Tricorder" + select OMAP3_GPIO_2 config TARGET_MCX bool "MCX" select BOARD_LATE_INIT + select OMAP3_GPIO_2 if USB_EHCI_HCD + select OMAP3_GPIO_5 if USB_EHCI_HCD config TARGET_OMAP3_LOGIC bool "OMAP3 Logic" @@ -71,15 +111,24 @@ config TARGET_OMAP3_LOGIC select DM select DM_SERIAL select DM_GPIO + select OMAP3_GPIO_4 + select OMAP3_GPIO_6 config TARGET_NOKIA_RX51 bool "Nokia RX51" config TARGET_TAO3530 bool "TAO3530" + select OMAP3_GPIO_2 + select OMAP3_GPIO_3 + select OMAP3_GPIO_4 + select OMAP3_GPIO_5 + select OMAP3_GPIO_6 config TARGET_TWISTER bool "Twister" + select OMAP3_GPIO_2 + select OMAP3_GPIO_5 if USB_EHCI_HCD config TARGET_OMAP3_CAIRO bool "QUIPOS CAIRO" @@ -92,6 +141,11 @@ config TARGET_SNIPER select DM select DM_SERIAL select DM_GPIO + select OMAP3_GPIO_2 + select OMAP3_GPIO_3 + select OMAP3_GPIO_4 + select OMAP3_GPIO_5 + select OMAP3_GPIO_6 endchoice diff --git a/arch/arm/mach-omap2/omap5/Kconfig b/arch/arm/mach-omap2/omap5/Kconfig index c89c438305..1a66abdeb2 100644 --- a/arch/arm/mach-omap2/omap5/Kconfig +++ b/arch/arm/mach-omap2/omap5/Kconfig @@ -63,6 +63,23 @@ config TI_SECURE_EMIF_PROTECTED_REGION_SIZE using hardware memory firewalls. This value must be smaller than the TI_SECURE_EMIF_TOTAL_REGION_SIZE value. +config OMAP_PLATFORM_RESET_TIME_MAX_USEC + int "Something" + range 0 31219 + default 31219 + help + Most OMAPs' provide a way to specify the time for which the reset + should be held low while the voltages and Oscillator outputs + stabilize. + This time is mostly board and PMIC dependent. Hence the boards are + expected to specify a pre-computed time using the above option. + This value can be computed using a summation of the below 3 + parameters + 1: Time taken by the Osciallator to stop and restart + 2: PMIC OTP time + 3: Voltage ramp time, which can be derived using the PMIC slew rate + and value of voltage ramp needed. + if TARGET_DRA7XX_EVM || TARGET_AM57XX_EVM menu "Voltage Domain OPP selections" diff --git a/arch/arm/mach-omap2/omap5/hwinit.c b/arch/arm/mach-omap2/omap5/hwinit.c index 839d79d102..afe59e0b58 100644 --- a/arch/arm/mach-omap2/omap5/hwinit.c +++ b/arch/arm/mach-omap2/omap5/hwinit.c @@ -414,12 +414,13 @@ void setup_warmreset_time(void) { u32 rst_time, rst_val; -#ifndef CONFIG_OMAP_PLATFORM_RESET_TIME_MAX_USEC - rst_time = CONFIG_DEFAULT_OMAP_RESET_TIME_MAX_USEC; -#else - rst_time = CONFIG_OMAP_PLATFORM_RESET_TIME_MAX_USEC; -#endif - rst_time = usec_to_32k(rst_time) << RSTTIME1_SHIFT; + /* + * MAX value for PRM_RSTTIME[9:0]RSTTIME1 stored is 0x3ff. + * 0x3ff is in the no of FUNC_32K_CLK cycles. Converting cycles + * into microsec and passing the value. + */ + rst_time = usec_to_32k(CONFIG_OMAP_PLATFORM_RESET_TIME_MAX_USEC) + << RSTTIME1_SHIFT; if (rst_time > RSTTIME1_MASK) rst_time = RSTTIME1_MASK; diff --git a/arch/arm/mach-omap2/vc.c b/arch/arm/mach-omap2/vc.c index a68f1d145d..b7f79800de 100644 --- a/arch/arm/mach-omap2/vc.c +++ b/arch/arm/mach-omap2/vc.c @@ -19,14 +19,6 @@ #include <asm/arch/sys_proto.h> #include <asm/arch/clock.h> -/* - * Define Master code if there are multiple masters on the I2C_SR bus. - * Normally not required - */ -#ifndef CONFIG_OMAP_VC_I2C_HS_MCODE -#define CONFIG_OMAP_VC_I2C_HS_MCODE 0x0 -#endif - /* Register defines and masks for VC IP Block */ /* PRM_VC_CFG_I2C_MODE */ #define PRM_VC_CFG_I2C_MODE_DFILTEREN_BIT (0x1 << 6) @@ -84,8 +76,10 @@ static void omap_vc_init(u16 speed_khz) (cycles_low << PRM_VC_CFG_I2C_CLK_SCLL_SHIFT); writel(val, (*prcm)->prm_vc_cfg_i2c_clk); - val = CONFIG_OMAP_VC_I2C_HS_MCODE << - PRM_VC_CFG_I2C_MODE_HSMCODE_SHIFT; + /* + * Master code if there are multiple masters on the I2C_SR bus. + */ + val = 0x0 << PRM_VC_CFG_I2C_MODE_HSMCODE_SHIFT; /* No HS mode for now */ val &= ~PRM_VC_CFG_I2C_MODE_HSMODEEN_BIT; writel(val, (*prcm)->prm_vc_cfg_i2c_mode); diff --git a/arch/arm/mach-uniphier/clk/clk-ld11.c b/arch/arm/mach-uniphier/clk/clk-ld11.c index 36aa787984..0266e7e66b 100644 --- a/arch/arm/mach-uniphier/clk/clk-ld11.c +++ b/arch/arm/mach-uniphier/clk/clk-ld11.c @@ -33,7 +33,7 @@ void uniphier_ld11_clk_init(void) /* TODO: use "mmc-pwrseq-emmc" */ writel(1, SDCTRL_EMMC_HW_RESET); -#ifdef CONFIG_USB_EHCI +#ifdef CONFIG_USB_EHCI_HCD { /* FIXME: the current clk driver can not handle parents */ u32 tmp; diff --git a/arch/arm/mach-uniphier/clk/clk-ld4.c b/arch/arm/mach-uniphier/clk/clk-ld4.c index 62b6927732..def87c1aac 100644 --- a/arch/arm/mach-uniphier/clk/clk-ld4.c +++ b/arch/arm/mach-uniphier/clk/clk-ld4.c @@ -31,7 +31,7 @@ void uniphier_ld4_clk_init(void) #ifdef CONFIG_UNIPHIER_ETH tmp |= SC_CLKCTRL_CEN_ETHER; #endif -#ifdef CONFIG_USB_EHCI +#ifdef CONFIG_USB_EHCI_HCD tmp |= SC_CLKCTRL_CEN_MIO | SC_CLKCTRL_CEN_STDMAC; #endif #ifdef CONFIG_NAND_DENALI diff --git a/arch/arm/mach-uniphier/clk/clk-pro4.c b/arch/arm/mach-uniphier/clk/clk-pro4.c index 92b73384ab..19be4f3145 100644 --- a/arch/arm/mach-uniphier/clk/clk-pro4.c +++ b/arch/arm/mach-uniphier/clk/clk-pro4.c @@ -46,7 +46,7 @@ void uniphier_pro4_clk_init(void) #ifdef CONFIG_UNIPHIER_ETH tmp |= SC_CLKCTRL_CEN_ETHER; #endif -#ifdef CONFIG_USB_EHCI +#ifdef CONFIG_USB_EHCI_HCD tmp |= SC_CLKCTRL_CEN_MIO | SC_CLKCTRL_CEN_STDMAC; #endif #ifdef CONFIG_NAND_DENALI diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 0033c35261..01e9008d0a 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -32,6 +32,7 @@ config MPC85xx select CREATE_ARCH_SYMLINK select SYS_FSL_DDR select SYS_FSL_DDR_BE + imply USB_EHCI_HCD if USB config MPC86xx bool "MPC86xx" diff --git a/arch/powerpc/cpu/mpc512x/Makefile b/arch/powerpc/cpu/mpc512x/Makefile index 98991c688b..933deebdae 100644 --- a/arch/powerpc/cpu/mpc512x/Makefile +++ b/arch/powerpc/cpu/mpc512x/Makefile @@ -9,7 +9,6 @@ obj-y := cpu.o obj-y += traps.o obj-y += cpu_init.o obj-y += fixed_sdram.o -obj-y += i2c.o obj-y += interrupts.o obj-y += iopin.o obj-y += serial.o diff --git a/arch/powerpc/cpu/mpc512x/i2c.c b/arch/powerpc/cpu/mpc512x/i2c.c deleted file mode 100644 index 15d519a116..0000000000 --- a/arch/powerpc/cpu/mpc512x/i2c.c +++ /dev/null @@ -1,386 +0,0 @@ -/* - * (C) Copyright 2003 - 2009 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - * - * Based on the MPC5xxx code. - */ - -#include <common.h> -#include <asm/io.h> - -DECLARE_GLOBAL_DATA_PTR; - -#ifdef CONFIG_HARD_I2C - -#include <i2c.h> - -/* by default set I2C bus 0 active */ -static unsigned int bus_num __attribute__ ((section (".data"))) = 0; - -#define I2C_TIMEOUT 100 -#define I2C_RETRIES 3 - -struct mpc512x_i2c_tap { - int scl2tap; - int tap2tap; -}; - -static int mpc_reg_in(volatile u32 *reg); -static void mpc_reg_out(volatile u32 *reg, int val, int mask); -static int wait_for_bb(void); -static int wait_for_pin(int *status); -static int do_address(uchar chip, char rdwr_flag); -static int send_bytes(uchar chip, char *buf, int len); -static int receive_bytes(uchar chip, char *buf, int len); -static int mpc_get_fdr(int); - -static int mpc_reg_in (volatile u32 *reg) -{ - int ret = in_be32(reg) >> 24; - - return ret; -} - -static void mpc_reg_out (volatile u32 *reg, int val, int mask) -{ - if (!mask) { - out_be32(reg, val << 24); - } else { - clrsetbits_be32(reg, mask << 24, (val & mask) << 24); - } -} - -static int wait_for_bb (void) -{ - volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num]; - int timeout = I2C_TIMEOUT; - int status; - - status = mpc_reg_in (®s->msr); - - while (timeout-- && (status & I2C_BB)) { - mpc_reg_out (®s->mcr, I2C_STA, I2C_STA); - (void)mpc_reg_in(®s->mdr); - mpc_reg_out (®s->mcr, 0, I2C_STA); - mpc_reg_out (®s->mcr, 0, 0); - mpc_reg_out (®s->mcr, I2C_EN, 0); - - udelay (1000); - status = mpc_reg_in (®s->msr); - } - - return (status & I2C_BB); -} - -static int wait_for_pin (int *status) -{ - volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num]; - int timeout = I2C_TIMEOUT; - - *status = mpc_reg_in (®s->msr); - - while (timeout-- && !(*status & I2C_IF)) { - udelay (1000); - *status = mpc_reg_in (®s->msr); - } - - if (!(*status & I2C_IF)) { - return -1; - } - - mpc_reg_out (®s->msr, 0, I2C_IF); - - return 0; -} - -static int do_address (uchar chip, char rdwr_flag) -{ - volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num]; - int status; - - chip <<= 1; - - if (rdwr_flag) { - chip |= 1; - } - - mpc_reg_out (®s->mcr, I2C_TX, I2C_TX); - mpc_reg_out (®s->mdr, chip, 0); - - if (wait_for_pin (&status)) { - return -2; - } - - if (status & I2C_RXAK) { - return -3; - } - - return 0; -} - -static int send_bytes (uchar chip, char *buf, int len) -{ - volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num]; - int wrcount; - int status; - - for (wrcount = 0; wrcount < len; ++wrcount) { - - mpc_reg_out (®s->mdr, buf[wrcount], 0); - - if (wait_for_pin (&status)) { - break; - } - - if (status & I2C_RXAK) { - break; - } - - } - - return !(wrcount == len); -} - -static int receive_bytes (uchar chip, char *buf, int len) -{ - volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num]; - int dummy = 1; - int rdcount = 0; - int status; - int i; - - mpc_reg_out (®s->mcr, 0, I2C_TX); - - for (i = 0; i < len; ++i) { - buf[rdcount] = mpc_reg_in (®s->mdr); - - if (dummy) { - dummy = 0; - } else { - rdcount++; - } - - if (wait_for_pin (&status)) { - return -4; - } - } - - mpc_reg_out (®s->mcr, I2C_TXAK, I2C_TXAK); - buf[rdcount++] = mpc_reg_in (®s->mdr); - - if (wait_for_pin (&status)) { - return -5; - } - - mpc_reg_out (®s->mcr, 0, I2C_TXAK); - - return 0; -} - -/**************** I2C API ****************/ - -void i2c_init (int speed, int saddr) -{ - volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - int i; - - for (i = 0; i < I2C_BUS_CNT; i++){ - volatile i2c512x_dev_t *regs = &im->i2c.dev[i]; - - mpc_reg_out (®s->mcr, 0, 0); - - /* Set clock */ - mpc_reg_out (®s->mfdr, mpc_get_fdr (speed), 0); - mpc_reg_out (®s->madr, saddr << 1, 0); - - /* Enable module */ - mpc_reg_out (®s->mcr, I2C_EN, I2C_INIT_MASK); - mpc_reg_out (®s->msr, 0, I2C_IF); - } - - /* Disable interrupts */ - out_be32(&im->i2c.icr, 0); - - /* Turn off filters */ - out_be32(&im->i2c.mifr, 0); -} - -static int mpc_get_fdr (int speed) -{ - static int fdr = -1; - - if (fdr == -1) { - ulong best_speed = 0; - ulong divider; - ulong ips, scl; - ulong bestmatch = 0xffffffffUL; - int best_i = 0, best_j = 0, i, j; - int SCL_Tap[] = { 9, 10, 12, 15, 5, 6, 7, 8}; - struct mpc512x_i2c_tap scltap[] = { - {4, 1}, - {4, 2}, - {6, 4}, - {6, 8}, - {14, 16}, - {30, 32}, - {62, 64}, - {126, 128} - }; - - ips = gd->arch.ips_clk; - for (i = 7; i >= 0; i--) { - for (j = 7; j >= 0; j--) { - scl = 2 * (scltap[j].scl2tap + - (SCL_Tap[i] - 1) * scltap[j].tap2tap - + 2); - if (ips <= speed*scl) { - if ((speed*scl - ips) < bestmatch) { - bestmatch = speed*scl - ips; - best_i = i; - best_j = j; - best_speed = ips/scl; - } - } - } - } - divider = (best_i & 3) | ((best_i & 4) << 3) | (best_j << 2); - if (gd->flags & GD_FLG_RELOC) { - fdr = divider; - } else { - debug("%ld kHz, \n", best_speed / 1000); - return divider; - } - } - - return fdr; -} - -int i2c_probe (uchar chip) -{ - volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num]; - int i; - - for (i = 0; i < I2C_RETRIES; i++) { - mpc_reg_out (®s->mcr, I2C_STA, I2C_STA); - - if (! do_address (chip, 0)) { - mpc_reg_out (®s->mcr, 0, I2C_STA); - udelay (500); - break; - } - - mpc_reg_out (®s->mcr, 0, I2C_STA); - udelay (500); - } - - return (i == I2C_RETRIES); -} - -int i2c_read (uchar chip, uint addr, int alen, uchar *buf, int len) -{ - volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num]; - char xaddr[4]; - int ret = -1; - - xaddr[0] = (addr >> 24) & 0xFF; - xaddr[1] = (addr >> 16) & 0xFF; - xaddr[2] = (addr >> 8) & 0xFF; - xaddr[3] = addr & 0xFF; - - if (wait_for_bb ()) { - printf ("i2c_read: bus is busy\n"); - goto Done; - } - - mpc_reg_out (®s->mcr, I2C_STA, I2C_STA); - if (do_address (chip, 0)) { - printf ("i2c_read: failed to address chip\n"); - goto Done; - } - - if (send_bytes (chip, &xaddr[4-alen], alen)) { - printf ("i2c_read: send_bytes failed\n"); - goto Done; - } - - mpc_reg_out (®s->mcr, I2C_RSTA, I2C_RSTA); - if (do_address (chip, 1)) { - printf ("i2c_read: failed to address chip\n"); - goto Done; - } - - if (receive_bytes (chip, (char *)buf, len)) { - printf ("i2c_read: receive_bytes failed\n"); - goto Done; - } - - ret = 0; -Done: - mpc_reg_out (®s->mcr, 0, I2C_STA); - return ret; -} - -int i2c_write (uchar chip, uint addr, int alen, uchar *buf, int len) -{ - volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num]; - char xaddr[4]; - int ret = -1; - - xaddr[0] = (addr >> 24) & 0xFF; - xaddr[1] = (addr >> 16) & 0xFF; - xaddr[2] = (addr >> 8) & 0xFF; - xaddr[3] = addr & 0xFF; - - if (wait_for_bb ()) { - printf ("i2c_write: bus is busy\n"); - goto Done; - } - - mpc_reg_out (®s->mcr, I2C_STA, I2C_STA); - if (do_address (chip, 0)) { - printf ("i2c_write: failed to address chip\n"); - goto Done; - } - - if (send_bytes (chip, &xaddr[4-alen], alen)) { - printf ("i2c_write: send_bytes failed\n"); - goto Done; - } - - if (send_bytes (chip, (char *)buf, len)) { - printf ("i2c_write: send_bytes failed\n"); - goto Done; - } - - ret = 0; -Done: - mpc_reg_out (®s->mcr, 0, I2C_STA); - return ret; -} - -int i2c_set_bus_num (unsigned int bus) -{ - if (bus >= I2C_BUS_CNT) { - return -1; - } - bus_num = bus; - - return 0; -} - -unsigned int i2c_get_bus_num (void) -{ - return bus_num; -} - -#endif /* CONFIG_HARD_I2C */ diff --git a/arch/powerpc/cpu/mpc5xxx/Makefile b/arch/powerpc/cpu/mpc5xxx/Makefile index 5c67e1d37d..88e3b2e3ae 100644 --- a/arch/powerpc/cpu/mpc5xxx/Makefile +++ b/arch/powerpc/cpu/mpc5xxx/Makefile @@ -9,7 +9,6 @@ extra-y = start.o extra-y += traps.o obj-y += io.o obj-y += firmware_sc_task_bestcomm.impl.o -obj-y += i2c.o obj-y += cpu.o obj-y += cpu_init.o obj-y += ide.o diff --git a/arch/powerpc/cpu/mpc5xxx/i2c.c b/arch/powerpc/cpu/mpc5xxx/i2c.c deleted file mode 100644 index 73601ae184..0000000000 --- a/arch/powerpc/cpu/mpc5xxx/i2c.c +++ /dev/null @@ -1,456 +0,0 @@ -/* - * (C) Copyright 2003 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> - -DECLARE_GLOBAL_DATA_PTR; - -#ifdef CONFIG_HARD_I2C - -#include <mpc5xxx.h> -#include <i2c.h> - -#if !defined(CONFIG_I2C_MULTI_BUS) -#if (CONFIG_SYS_I2C_MODULE == 2) -#define I2C_BASE MPC5XXX_I2C2 -#elif (CONFIG_SYS_I2C_MODULE == 1) -#define I2C_BASE MPC5XXX_I2C1 -#else -#error CONFIG_SYS_I2C_MODULE is not properly configured -#endif -#else -static unsigned int i2c_bus_num __attribute__ ((section (".data"))) = - CONFIG_SYS_SPD_BUS_NUM; -static unsigned int i2c_bus_speed[2] = {CONFIG_SYS_I2C_SPEED, - CONFIG_SYS_I2C_SPEED}; - -static const unsigned long i2c_dev[2] = { - MPC5XXX_I2C1, - MPC5XXX_I2C2, -}; - -#define I2C_BASE ((struct mpc5xxx_i2c *)i2c_dev[i2c_bus_num]) -#endif - -#define I2C_TIMEOUT 6667 -#define I2C_RETRIES 3 - -struct mpc5xxx_i2c_tap { - int scl2tap; - int tap2tap; -}; - -static int mpc_reg_in (volatile u32 *reg); -static void mpc_reg_out (volatile u32 *reg, int val, int mask); -static int wait_for_bb (void); -static int wait_for_pin (int *status); -static int do_address (uchar chip, char rdwr_flag); -static int send_bytes (uchar chip, char *buf, int len); -static int receive_bytes (uchar chip, char *buf, int len); -static int mpc_get_fdr (int); - -static int mpc_reg_in(volatile u32 *reg) -{ - int ret = *reg >> 24; - __asm__ __volatile__ ("eieio"); - return ret; -} - -static void mpc_reg_out(volatile u32 *reg, int val, int mask) -{ - int tmp; - - if (!mask) { - *reg = val << 24; - } else { - tmp = mpc_reg_in(reg); - *reg = ((tmp & ~mask) | (val & mask)) << 24; - } - __asm__ __volatile__ ("eieio"); - - return; -} - -static int wait_for_bb(void) -{ - struct mpc5xxx_i2c *regs = (struct mpc5xxx_i2c *)I2C_BASE; - int timeout = I2C_TIMEOUT; - int status; - - status = mpc_reg_in(®s->msr); - - while (timeout-- && (status & I2C_BB)) { - mpc_reg_out(®s->mcr, I2C_STA, I2C_STA); - (void)mpc_reg_in(®s->mdr); - mpc_reg_out(®s->mcr, 0, I2C_STA); - mpc_reg_out(®s->mcr, 0, 0); - mpc_reg_out(®s->mcr, I2C_EN, 0); - udelay(15); - status = mpc_reg_in(®s->msr); - } - - return (status & I2C_BB); -} - -static int wait_for_pin(int *status) -{ - struct mpc5xxx_i2c *regs = (struct mpc5xxx_i2c *)I2C_BASE; - int timeout = I2C_TIMEOUT; - - *status = mpc_reg_in(®s->msr); - - while (timeout-- && !(*status & I2C_IF)) { - udelay(15); - *status = mpc_reg_in(®s->msr); - } - - if (!(*status & I2C_IF)) { - return -1; - } - - mpc_reg_out(®s->msr, 0, I2C_IF); - - return 0; -} - -static int do_address(uchar chip, char rdwr_flag) -{ - struct mpc5xxx_i2c *regs = (struct mpc5xxx_i2c *)I2C_BASE; - int status; - - chip <<= 1; - - if (rdwr_flag) { - chip |= 1; - } - - mpc_reg_out(®s->mcr, I2C_TX, I2C_TX); - mpc_reg_out(®s->mdr, chip, 0); - - if (wait_for_pin(&status)) { - return -2; - } - - if (status & I2C_RXAK) { - return -3; - } - - return 0; -} - -static int send_bytes(uchar chip, char *buf, int len) -{ - struct mpc5xxx_i2c *regs = (struct mpc5xxx_i2c *)I2C_BASE; - int wrcount; - int status; - - for (wrcount = 0; wrcount < len; ++wrcount) { - - mpc_reg_out(®s->mdr, buf[wrcount], 0); - - if (wait_for_pin(&status)) { - break; - } - - if (status & I2C_RXAK) { - break; - } - - } - - return !(wrcount == len); -} - -static int receive_bytes(uchar chip, char *buf, int len) -{ - struct mpc5xxx_i2c *regs = (struct mpc5xxx_i2c *)I2C_BASE; - int dummy = 1; - int rdcount = 0; - int status; - int i; - - mpc_reg_out(®s->mcr, 0, I2C_TX); - - for (i = 0; i < len; ++i) { - buf[rdcount] = mpc_reg_in(®s->mdr); - - if (dummy) { - dummy = 0; - } else { - rdcount++; - } - - - if (wait_for_pin(&status)) { - return -4; - } - } - - mpc_reg_out(®s->mcr, I2C_TXAK, I2C_TXAK); - buf[rdcount++] = mpc_reg_in(®s->mdr); - - if (wait_for_pin(&status)) { - return -5; - } - - mpc_reg_out(®s->mcr, 0, I2C_TXAK); - - return 0; -} - -#if defined(CONFIG_SYS_I2C_INIT_MPC5XXX) - -#define FDR510(x) (u8) (((x & 0x20) >> 3) | (x & 0x3)) -#define FDR432(x) (u8) ((x & 0x1C) >> 2) -/* - * Reset any i2c devices that may have been interrupted during a system reset. - * Normally this would be accomplished by clocking the line until SCL and SDA - * are released and then sending a start condtiion (From an Atmel datasheet). - * There is no direct access to the i2c pins so instead create start commands - * through the i2c interface. Send a start command then delay for the SDA Hold - * time, repeat this by disabling/enabling the bus a total of 9 times. - */ -static void send_reset(void) -{ - struct mpc5xxx_i2c *regs = (struct mpc5xxx_i2c *)I2C_BASE; - int i; - u32 delay; - u8 fdr; - int SDA_Tap[] = { 3, 3, 4, 4, 1, 1, 2, 2}; - struct mpc5xxx_i2c_tap scltap[] = { - {4, 1}, - {4, 2}, - {6, 4}, - {6, 8}, - {14, 16}, - {30, 32}, - {62, 64}, - {126, 128} - }; - - fdr = (u8)mpc_reg_in(®s->mfdr); - - delay = scltap[FDR432(fdr)].scl2tap + ((SDA_Tap[FDR510(fdr)] - 1) * \ - scltap[FDR432(fdr)].tap2tap) + 3; - - for (i = 0; i < 9; i++) { - mpc_reg_out(®s->mcr, I2C_EN|I2C_STA|I2C_TX, I2C_INIT_MASK); - udelay(delay); - mpc_reg_out(®s->mcr, 0, I2C_INIT_MASK); - udelay(delay); - } - - mpc_reg_out(®s->mcr, I2C_EN, I2C_INIT_MASK); -} -#endif /* CONFIG_SYS_I2c_INIT_MPC5XXX */ - -/**************** I2C API ****************/ - -void i2c_init(int speed, int saddr) -{ - struct mpc5xxx_i2c *regs = (struct mpc5xxx_i2c *)I2C_BASE; - - mpc_reg_out(®s->mcr, 0, 0); - mpc_reg_out(®s->madr, saddr << 1, 0); - - /* Set clock - */ - mpc_reg_out(®s->mfdr, mpc_get_fdr(speed), 0); - - /* Enable module - */ - mpc_reg_out(®s->mcr, I2C_EN, I2C_INIT_MASK); - mpc_reg_out(®s->msr, 0, I2C_IF); - -#if defined(CONFIG_SYS_I2C_INIT_MPC5XXX) - send_reset(); -#endif - return; -} - -static int mpc_get_fdr(int speed) -{ - static int fdr = -1; - - if (fdr == -1) { - ulong best_speed = 0; - ulong divider; - ulong ipb, scl; - ulong bestmatch = 0xffffffffUL; - int best_i = 0, best_j = 0, i, j; - int SCL_Tap[] = { 9, 10, 12, 15, 5, 6, 7, 8}; - struct mpc5xxx_i2c_tap scltap[] = { - {4, 1}, - {4, 2}, - {6, 4}, - {6, 8}, - {14, 16}, - {30, 32}, - {62, 64}, - {126, 128} - }; - - ipb = gd->arch.ipb_clk; - for (i = 7; i >= 0; i--) { - for (j = 7; j >= 0; j--) { - scl = 2 * (scltap[j].scl2tap + - (SCL_Tap[i] - 1) * scltap[j].tap2tap + 2); - if (ipb <= speed*scl) { - if ((speed*scl - ipb) < bestmatch) { - bestmatch = speed*scl - ipb; - best_i = i; - best_j = j; - best_speed = ipb/scl; - } - } - } - } - divider = (best_i & 3) | ((best_i & 4) << 3) | (best_j << 2); - if (gd->flags & GD_FLG_RELOC) { - fdr = divider; - } else { - printf("%ld kHz, ", best_speed / 1000); - return divider; - } - } - - return fdr; -} - -int i2c_probe(uchar chip) -{ - struct mpc5xxx_i2c *regs = (struct mpc5xxx_i2c *)I2C_BASE; - int i; - - for (i = 0; i < I2C_RETRIES; i++) { - mpc_reg_out(®s->mcr, I2C_STA, I2C_STA); - - if (! do_address(chip, 0)) { - mpc_reg_out(®s->mcr, 0, I2C_STA); - udelay(500); - break; - } - - mpc_reg_out(®s->mcr, 0, I2C_STA); - udelay(500); - } - - return (i == I2C_RETRIES); -} - -int i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len) -{ - char xaddr[4]; - struct mpc5xxx_i2c * regs = (struct mpc5xxx_i2c *)I2C_BASE; - int ret = -1; - - xaddr[0] = (addr >> 24) & 0xFF; - xaddr[1] = (addr >> 16) & 0xFF; - xaddr[2] = (addr >> 8) & 0xFF; - xaddr[3] = addr & 0xFF; - - if (wait_for_bb()) { - printf("i2c_read: bus is busy\n"); - goto Done; - } - - mpc_reg_out(®s->mcr, I2C_STA, I2C_STA); - if (do_address(chip, 0)) { - printf("i2c_read: failed to address chip\n"); - goto Done; - } - - if (send_bytes(chip, &xaddr[4-alen], alen)) { - printf("i2c_read: send_bytes failed\n"); - goto Done; - } - - mpc_reg_out(®s->mcr, I2C_RSTA, I2C_RSTA); - if (do_address(chip, 1)) { - printf("i2c_read: failed to address chip\n"); - goto Done; - } - - if (receive_bytes(chip, (char *)buf, len)) { - printf("i2c_read: receive_bytes failed\n"); - goto Done; - } - - ret = 0; -Done: - mpc_reg_out(®s->mcr, 0, I2C_STA); - return ret; -} - -int i2c_write(uchar chip, uint addr, int alen, uchar *buf, int len) -{ - char xaddr[4]; - struct mpc5xxx_i2c *regs = (struct mpc5xxx_i2c *)I2C_BASE; - int ret = -1; - - xaddr[0] = (addr >> 24) & 0xFF; - xaddr[1] = (addr >> 16) & 0xFF; - xaddr[2] = (addr >> 8) & 0xFF; - xaddr[3] = addr & 0xFF; - - if (wait_for_bb()) { - printf("i2c_write: bus is busy\n"); - goto Done; - } - - mpc_reg_out(®s->mcr, I2C_STA, I2C_STA); - if (do_address(chip, 0)) { - printf("i2c_write: failed to address chip\n"); - goto Done; - } - - if (send_bytes(chip, &xaddr[4-alen], alen)) { - printf("i2c_write: send_bytes failed\n"); - goto Done; - } - - if (send_bytes(chip, (char *)buf, len)) { - printf("i2c_write: send_bytes failed\n"); - goto Done; - } - - ret = 0; -Done: - mpc_reg_out(®s->mcr, 0, I2C_STA); - return ret; -} - -#if defined(CONFIG_I2C_MULTI_BUS) -int i2c_set_bus_num(unsigned int bus) -{ - if (bus > 1) - return -1; - - i2c_bus_num = bus; - i2c_init(i2c_bus_speed[bus], CONFIG_SYS_I2C_SLAVE); - return 0; -} - -int i2c_set_bus_speed(unsigned int speed) -{ - i2c_init(speed, CONFIG_SYS_I2C_SLAVE); - return 0; -} - -unsigned int i2c_get_bus_num(void) -{ - return i2c_bus_num; -} - -unsigned int i2c_get_bus_speed(void) -{ - return i2c_bus_speed[i2c_bus_num]; -} -#endif - - -#endif /* CONFIG_HARD_I2C */ diff --git a/arch/powerpc/cpu/mpc8260/Makefile b/arch/powerpc/cpu/mpc8260/Makefile index 83adc4c436..72dd8aba25 100644 --- a/arch/powerpc/cpu/mpc8260/Makefile +++ b/arch/powerpc/cpu/mpc8260/Makefile @@ -7,7 +7,7 @@ extra-y = start.o obj-y = traps.o serial_smc.o serial_scc.o cpu.o cpu_init.o speed.o \ - interrupts.o ether_fcc.o i2c.o commproc.o \ + interrupts.o ether_fcc.o commproc.o \ bedbug_603e.o pci.o spi.o kgdb.o obj-$(CONFIG_ETHER_ON_SCC) += ether_scc.o diff --git a/arch/powerpc/cpu/mpc8260/commproc.c b/arch/powerpc/cpu/mpc8260/commproc.c index 484bd17745..ff69881089 100644 --- a/arch/powerpc/cpu/mpc8260/commproc.c +++ b/arch/powerpc/cpu/mpc8260/commproc.c @@ -41,10 +41,6 @@ m8260_cpm_reset(void) do { /* Spin until command processed */ __asm__ __volatile__ ("eieio"); } while ((immr->im_cpm.cp_cpcr & CPM_CR_FLG) && ++count < 1000000); - -#ifdef CONFIG_HARD_I2C - immr->im_dprambase16[PROFF_I2C_BASE / sizeof(u16)] = 0; -#endif } /* Allocate some memory from the dual ported ram. diff --git a/arch/powerpc/cpu/mpc8260/i2c.c b/arch/powerpc/cpu/mpc8260/i2c.c deleted file mode 100644 index a0de101329..0000000000 --- a/arch/powerpc/cpu/mpc8260/i2c.c +++ /dev/null @@ -1,741 +0,0 @@ -/* - * (C) Copyright 2000 - * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it - * - * (C) Copyright 2000 Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.de> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <console.h> - -#if defined(CONFIG_HARD_I2C) - -#include <asm/cpm_8260.h> -#include <i2c.h> - -DECLARE_GLOBAL_DATA_PTR; - -#if defined(CONFIG_I2C_MULTI_BUS) -static unsigned int i2c_bus_num __attribute__ ((section(".data"))) = 0; -#endif /* CONFIG_I2C_MULTI_BUS */ - -/* uSec to wait between polls of the i2c */ -#define DELAY_US 100 -/* uSec to wait for the CPM to start processing the buffer */ -#define START_DELAY_US 1000 - -/* - * tx/rx per-byte timeout: we delay DELAY_US uSec between polls so the - * timeout will be (tx_length + rx_length) * DELAY_US * TOUT_LOOP - */ -#define TOUT_LOOP 5 - -/* - * Set default values - */ -#ifndef CONFIG_SYS_I2C_SPEED -#define CONFIG_SYS_I2C_SPEED 50000 -#endif - - -typedef void (*i2c_ecb_t) (int, int, void *); /* error callback function */ - -/* This structure keeps track of the bd and buffer space usage. */ -typedef struct i2c_state { - int rx_idx; /* index to next free Rx BD */ - int tx_idx; /* index to next free Tx BD */ - void *rxbd; /* pointer to next free Rx BD */ - void *txbd; /* pointer to next free Tx BD */ - int tx_space; /* number of Tx bytes left */ - unsigned char *tx_buf; /* pointer to free Tx area */ - i2c_ecb_t err_cb; /* error callback function */ - void *cb_data; /* private data to be passed */ -} i2c_state_t; - -/* flags for i2c_send() and i2c_receive() */ -#define I2CF_ENABLE_SECONDARY 0x01 /* secondary_address is valid */ -#define I2CF_START_COND 0x02 /* tx: generate start condition */ -#define I2CF_STOP_COND 0x04 /* tx: generate stop condition */ - -/* return codes */ -#define I2CERR_NO_BUFFERS 1 /* no more BDs or buffer space */ -#define I2CERR_MSG_TOO_LONG 2 /* tried to send/receive to much data */ -#define I2CERR_TIMEOUT 3 /* timeout in i2c_doio() */ -#define I2CERR_QUEUE_EMPTY 4 /* i2c_doio called without send/rcv */ -#define I2CERR_IO_ERROR 5 /* had an error during comms */ - -/* error callback flags */ -#define I2CECB_RX_ERR 0x10 /* this is a receive error */ -#define I2CECB_RX_OV 0x02 /* receive overrun error */ -#define I2CECB_RX_MASK 0x0f /* mask for error bits */ -#define I2CECB_TX_ERR 0x20 /* this is a transmit error */ -#define I2CECB_TX_CL 0x01 /* transmit collision error */ -#define I2CECB_TX_UN 0x02 /* transmit underflow error */ -#define I2CECB_TX_NAK 0x04 /* transmit no ack error */ -#define I2CECB_TX_MASK 0x0f /* mask for error bits */ -#define I2CECB_TIMEOUT 0x40 /* this is a timeout error */ - -#define ERROR_I2C_NONE 0 -#define ERROR_I2C_LENGTH 1 - -#define I2C_WRITE_BIT 0x00 -#define I2C_READ_BIT 0x01 - -#define I2C_RXTX_LEN 128 /* maximum tx/rx buffer length */ - - -#define NUM_RX_BDS 4 -#define NUM_TX_BDS 4 -#define MAX_TX_SPACE 256 - -typedef struct I2C_BD { - unsigned short status; - unsigned short length; - unsigned char *addr; -} I2C_BD; - -#define BD_I2C_TX_START 0x0400 /* special status for i2c: Start condition */ - -#define BD_I2C_TX_CL 0x0001 /* collision error */ -#define BD_I2C_TX_UN 0x0002 /* underflow error */ -#define BD_I2C_TX_NAK 0x0004 /* no acknowledge error */ -#define BD_I2C_TX_ERR (BD_I2C_TX_NAK|BD_I2C_TX_UN|BD_I2C_TX_CL) - -#define BD_I2C_RX_ERR BD_SC_OV - -/* - * Returns the best value of I2BRG to meet desired clock speed of I2C with - * input parameters (clock speed, filter, and predivider value). - * It returns computer speed value and the difference between it and desired - * speed. - */ -static inline int -i2c_roundrate(int hz, int speed, int filter, int modval, - int *brgval, int *totspeed) -{ - int moddiv = 1 << (5 - (modval & 3)), brgdiv, div; - - debug("\t[I2C] trying hz=%d, speed=%d, filter=%d, modval=%d\n", - hz, speed, filter, modval); - - div = moddiv * speed; - brgdiv = (hz + div - 1) / div; - - debug("\t\tmoddiv=%d, brgdiv=%d\n", moddiv, brgdiv); - - *brgval = ((brgdiv + 1) / 2) - 3 - (2 * filter); - - if ((*brgval < 0) || (*brgval > 255)) { - debug("\t\trejected brgval=%d\n", *brgval); - return -1; - } - - brgdiv = 2 * (*brgval + 3 + (2 * filter)); - div = moddiv * brgdiv; - *totspeed = hz / div; - - debug("\t\taccepted brgval=%d, totspeed=%d\n", *brgval, *totspeed); - - return 0; -} - -/* - * Sets the I2C clock predivider and divider to meet required clock speed. - */ -static int i2c_setrate(int hz, int speed) -{ - immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; - volatile i2c8260_t *i2c = (i2c8260_t *)&immap->im_i2c; - int brgval, - modval, /* 0-3 */ - bestspeed_diff = speed, - bestspeed_brgval = 0, - bestspeed_modval = 0, - bestspeed_filter = 0, - totspeed, - filter = 0; /* Use this fixed value */ - - for (modval = 0; modval < 4; modval++) { - if (i2c_roundrate(hz, speed, filter, modval, &brgval, &totspeed) - == 0) { - int diff = speed - totspeed; - - if ((diff >= 0) && (diff < bestspeed_diff)) { - bestspeed_diff = diff; - bestspeed_modval = modval; - bestspeed_brgval = brgval; - bestspeed_filter = filter; - } - } - } - - debug("[I2C] Best is:\n"); - debug("[I2C] CPU=%dhz RATE=%d F=%d I2MOD=%08x I2BRG=%08x DIFF=%dhz\n", - hz, speed, bestspeed_filter, bestspeed_modval, bestspeed_brgval, - bestspeed_diff); - - i2c->i2c_i2mod |= ((bestspeed_modval & 3) << 1) | - (bestspeed_filter << 3); - i2c->i2c_i2brg = bestspeed_brgval & 0xff; - - debug("[I2C] i2mod=%08x i2brg=%08x\n", i2c->i2c_i2mod, - i2c->i2c_i2brg); - - return 1; -} - -void i2c_init(int speed, int slaveadd) -{ - volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; - volatile cpm8260_t *cp = (cpm8260_t *)&immap->im_cpm; - volatile i2c8260_t *i2c = (i2c8260_t *)&immap->im_i2c; - volatile iic_t *iip; - ulong rbase, tbase; - volatile I2C_BD *rxbd, *txbd; - uint dpaddr; - -#ifdef CONFIG_SYS_I2C_INIT_BOARD - /* - * call board specific i2c bus reset routine before accessing the - * environment, which might be in a chip on that bus. For details - * about this problem see doc/I2C_Edge_Conditions. - */ - i2c_init_board(); -#endif - - dpaddr = immap->im_dprambase16[PROFF_I2C_BASE / sizeof(u16)]; - if (dpaddr == 0) { - /* need to allocate dual port ram */ - dpaddr = m8260_cpm_dpalloc(64 + - (NUM_RX_BDS * sizeof(I2C_BD)) + - (NUM_TX_BDS * sizeof(I2C_BD)) + - MAX_TX_SPACE, 64); - immap->im_dprambase16[PROFF_I2C_BASE / sizeof(u16)] = - dpaddr; - } - - /* - * initialise data in dual port ram: - * - * dpaddr -> parameter ram (64 bytes) - * rbase -> rx BD (NUM_RX_BDS * sizeof(I2C_BD) bytes) - * tbase -> tx BD (NUM_TX_BDS * sizeof(I2C_BD) bytes) - * tx buffer (MAX_TX_SPACE bytes) - */ - - iip = (iic_t *)&immap->im_dprambase[dpaddr]; - memset((void *)iip, 0, sizeof(iic_t)); - - rbase = dpaddr + 64; - tbase = rbase + NUM_RX_BDS * sizeof(I2C_BD); - - /* Disable interrupts */ - i2c->i2c_i2mod = 0x00; - i2c->i2c_i2cmr = 0x00; - i2c->i2c_i2cer = 0xff; - i2c->i2c_i2add = slaveadd; - - /* - * Set the I2C BRG Clock division factor from desired i2c rate - * and current CPU rate (we assume sccr dfbgr field is 0; - * divide BRGCLK by 1) - */ - debug("[I2C] Setting rate...\n"); - i2c_setrate(gd->arch.brg_clk, CONFIG_SYS_I2C_SPEED); - - /* Set I2C controller in master mode */ - i2c->i2c_i2com = 0x01; - - /* Initialize Tx/Rx parameters */ - iip->iic_rbase = rbase; - iip->iic_tbase = tbase; - rxbd = (I2C_BD *)((unsigned char *) &immap-> - im_dprambase[iip->iic_rbase]); - txbd = (I2C_BD *)((unsigned char *) &immap-> - im_dprambase[iip->iic_tbase]); - - debug("[I2C] rbase = %04x\n", iip->iic_rbase); - debug("[I2C] tbase = %04x\n", iip->iic_tbase); - debug("[I2C] rxbd = %08x\n", (int) rxbd); - debug("[I2C] txbd = %08x\n", (int) txbd); - - /* Set big endian byte order */ - iip->iic_tfcr = 0x10; - iip->iic_rfcr = 0x10; - - /* Set maximum receive size. */ - iip->iic_mrblr = I2C_RXTX_LEN; - - cp->cp_cpcr = mk_cr_cmd(CPM_CR_I2C_PAGE, - CPM_CR_I2C_SBLOCK, - 0x00, CPM_CR_INIT_TRX) | CPM_CR_FLG; - do { - __asm__ __volatile__("eieio"); - } while (cp->cp_cpcr & CPM_CR_FLG); - - /* Clear events and interrupts */ - i2c->i2c_i2cer = 0xff; - i2c->i2c_i2cmr = 0x00; -} - -static -void i2c_newio(i2c_state_t *state) -{ - volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; - volatile iic_t *iip; - uint dpaddr; - - debug("[I2C] i2c_newio\n"); - - dpaddr = immap->im_dprambase16[PROFF_I2C_BASE / sizeof(u16)]; - iip = (iic_t *)&immap->im_dprambase[dpaddr]; - state->rx_idx = 0; - state->tx_idx = 0; - state->rxbd = (void *)&immap->im_dprambase[iip->iic_rbase]; - state->txbd = (void *)&immap->im_dprambase[iip->iic_tbase]; - state->tx_space = MAX_TX_SPACE; - state->tx_buf = (uchar *)state->txbd + NUM_TX_BDS * sizeof(I2C_BD); - state->err_cb = NULL; - state->cb_data = NULL; - - debug("[I2C] rxbd = %08x\n", (int)state->rxbd); - debug("[I2C] txbd = %08x\n", (int)state->txbd); - debug("[I2C] tx_buf = %08x\n", (int)state->tx_buf); - - /* clear the buffer memory */ - memset((char *) state->tx_buf, 0, MAX_TX_SPACE); -} - -static -int i2c_send(i2c_state_t *state, - unsigned char address, - unsigned char secondary_address, - unsigned int flags, unsigned short size, unsigned char *dataout) -{ - volatile I2C_BD *txbd; - int i, j; - - debug("[I2C] i2c_send add=%02d sec=%02d flag=%02d size=%d\n", - address, secondary_address, flags, size); - - /* trying to send message larger than BD */ - if (size > I2C_RXTX_LEN) - return I2CERR_MSG_TOO_LONG; - - /* no more free bds */ - if (state->tx_idx >= NUM_TX_BDS || state->tx_space < (2 + size)) - return I2CERR_NO_BUFFERS; - - txbd = (I2C_BD *)state->txbd; - txbd->addr = state->tx_buf; - - debug("[I2C] txbd = %08x\n", (int) txbd); - - if (flags & I2CF_START_COND) { - debug("[I2C] Formatting addresses...\n"); - if (flags & I2CF_ENABLE_SECONDARY) { - /* Length of message plus dest addresses */ - txbd->length = size + 2; - txbd->addr[0] = address << 1; - txbd->addr[1] = secondary_address; - i = 2; - } else { - /* Length of message plus dest address */ - txbd->length = size + 1; - /* Write destination address to BD */ - txbd->addr[0] = address << 1; - i = 1; - } - } else { - txbd->length = size; /* Length of message */ - i = 0; - } - - /* set up txbd */ - txbd->status = BD_SC_READY; - if (flags & I2CF_START_COND) - txbd->status |= BD_I2C_TX_START; - if (flags & I2CF_STOP_COND) - txbd->status |= BD_SC_LAST | BD_SC_WRAP; - - /* Copy data to send into buffer */ - debug("[I2C] copy data...\n"); - for (j = 0; j < size; i++, j++) - txbd->addr[i] = dataout[j]; - - debug("[I2C] txbd: length=0x%04x status=0x%04x addr[0]=0x%02x addr[1]=0x%02x\n", - txbd->length, txbd->status, txbd->addr[0], txbd->addr[1]); - - /* advance state */ - state->tx_buf += txbd->length; - state->tx_space -= txbd->length; - state->tx_idx++; - state->txbd = (void *) (txbd + 1); - - return 0; -} - -static -int i2c_receive(i2c_state_t *state, - unsigned char address, - unsigned char secondary_address, - unsigned int flags, - unsigned short size_to_expect, unsigned char *datain) -{ - volatile I2C_BD *rxbd, *txbd; - - debug("[I2C] i2c_receive %02d %02d %02d\n", address, - secondary_address, flags); - - /* Expected to receive too much */ - if (size_to_expect > I2C_RXTX_LEN) - return I2CERR_MSG_TOO_LONG; - - /* no more free bds */ - if (state->tx_idx >= NUM_TX_BDS || state->rx_idx >= NUM_RX_BDS - || state->tx_space < 2) - return I2CERR_NO_BUFFERS; - - rxbd = (I2C_BD *) state->rxbd; - txbd = (I2C_BD *) state->txbd; - - debug("[I2C] rxbd = %08x\n", (int) rxbd); - debug("[I2C] txbd = %08x\n", (int) txbd); - - txbd->addr = state->tx_buf; - - /* set up TXBD for destination address */ - if (flags & I2CF_ENABLE_SECONDARY) { - txbd->length = 2; - txbd->addr[0] = address << 1; /* Write data */ - txbd->addr[1] = secondary_address; /* Internal address */ - txbd->status = BD_SC_READY; - } else { - txbd->length = 1 + size_to_expect; - txbd->addr[0] = (address << 1) | 0x01; - txbd->status = BD_SC_READY; - memset(&txbd->addr[1], 0, txbd->length); - } - - /* set up rxbd for reception */ - rxbd->status = BD_SC_EMPTY; - rxbd->length = size_to_expect; - rxbd->addr = datain; - - txbd->status |= BD_I2C_TX_START; - if (flags & I2CF_STOP_COND) { - txbd->status |= BD_SC_LAST | BD_SC_WRAP; - rxbd->status |= BD_SC_WRAP; - } - - debug("[I2C] txbd: length=0x%04x status=0x%04x addr[0]=0x%02x addr[1]=0x%02x\n", - txbd->length, txbd->status, txbd->addr[0], txbd->addr[1]); - debug("[I2C] rxbd: length=0x%04x status=0x%04x addr[0]=0x%02x addr[1]=0x%02x\n", - rxbd->length, rxbd->status, rxbd->addr[0], rxbd->addr[1]); - - /* advance state */ - state->tx_buf += txbd->length; - state->tx_space -= txbd->length; - state->tx_idx++; - state->txbd = (void *) (txbd + 1); - state->rx_idx++; - state->rxbd = (void *) (rxbd + 1); - - return 0; -} - - -static -int i2c_doio(i2c_state_t *state) -{ - volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; - volatile iic_t *iip; - volatile i2c8260_t *i2c = (i2c8260_t *)&immap->im_i2c; - volatile I2C_BD *txbd, *rxbd; - int n, i, b, rxcnt = 0, rxtimeo = 0, txcnt = 0, txtimeo = 0, rc = 0; - uint dpaddr; - - debug("[I2C] i2c_doio\n"); - - if (state->tx_idx <= 0 && state->rx_idx <= 0) { - debug("[I2C] No I/O is queued\n"); - return I2CERR_QUEUE_EMPTY; - } - - dpaddr = immap->im_dprambase16[PROFF_I2C_BASE / sizeof(u16)]; - iip = (iic_t *)&immap->im_dprambase[dpaddr]; - iip->iic_rbptr = iip->iic_rbase; - iip->iic_tbptr = iip->iic_tbase; - - /* Enable I2C */ - debug("[I2C] Enabling I2C...\n"); - i2c->i2c_i2mod |= 0x01; - - /* Begin transmission */ - i2c->i2c_i2com |= 0x80; - - /* Loop until transmit & receive completed */ - - n = state->tx_idx; - - if (n > 0) { - - txbd = ((I2C_BD *) state->txbd) - n; - for (i = 0; i < n; i++) { - txtimeo += TOUT_LOOP * txbd->length; - txbd++; - } - - txbd--; /* wait until last in list is done */ - - debug("[I2C] Transmitting...(txbd=0x%08lx)\n", - (ulong) txbd); - - udelay(START_DELAY_US); /* give it time to start */ - while ((txbd->status & BD_SC_READY) && (++txcnt < txtimeo)) { - udelay(DELAY_US); - if (ctrlc()) - return -1; - __asm__ __volatile__("eieio"); - } - } - - n = state->rx_idx; - - if (txcnt < txtimeo && n > 0) { - - rxbd = ((I2C_BD *) state->rxbd) - n; - for (i = 0; i < n; i++) { - rxtimeo += TOUT_LOOP * rxbd->length; - rxbd++; - } - - rxbd--; /* wait until last in list is done */ - - debug("[I2C] Receiving...(rxbd=0x%08lx)\n", (ulong) rxbd); - - udelay(START_DELAY_US); /* give it time to start */ - while ((rxbd->status & BD_SC_EMPTY) && (++rxcnt < rxtimeo)) { - udelay(DELAY_US); - if (ctrlc()) - return -1; - __asm__ __volatile__("eieio"); - } - } - - /* Turn off I2C */ - i2c->i2c_i2mod &= ~0x01; - - n = state->tx_idx; - - if (n > 0) { - for (i = 0; i < n; i++) { - txbd = ((I2C_BD *) state->txbd) - (n - i); - b = txbd->status & BD_I2C_TX_ERR; - if (b != 0) { - if (state->err_cb != NULL) - (*state->err_cb) (I2CECB_TX_ERR | b, - i, state->cb_data); - if (rc == 0) - rc = I2CERR_IO_ERROR; - } - } - } - - n = state->rx_idx; - - if (n > 0) { - for (i = 0; i < n; i++) { - rxbd = ((I2C_BD *) state->rxbd) - (n - i); - b = rxbd->status & BD_I2C_RX_ERR; - if (b != 0) { - if (state->err_cb != NULL) - (*state->err_cb) (I2CECB_RX_ERR | b, - i, state->cb_data); - if (rc == 0) - rc = I2CERR_IO_ERROR; - } - } - } - - if ((txtimeo > 0 && txcnt >= txtimeo) || - (rxtimeo > 0 && rxcnt >= rxtimeo)) { - if (state->err_cb != NULL) - (*state->err_cb) (I2CECB_TIMEOUT, -1, state->cb_data); - if (rc == 0) - rc = I2CERR_TIMEOUT; - } - - return rc; -} - -static void i2c_probe_callback(int flags, int xnum, void *data) -{ - /* - * the only acceptable errors are a transmit NAK or a receive - * overrun - tx NAK means the device does not exist, rx OV - * means the device must have responded to the slave address - * even though the transfer failed - */ - if (flags == (I2CECB_TX_ERR | I2CECB_TX_NAK)) - *(int *) data |= 1; - if (flags == (I2CECB_RX_ERR | I2CECB_RX_OV)) - *(int *) data |= 2; -} - -int i2c_probe(uchar chip) -{ - i2c_state_t state; - int rc, err_flag; - uchar buf[1]; - - i2c_newio(&state); - - state.err_cb = i2c_probe_callback; - state.cb_data = (void *) &err_flag; - err_flag = 0; - - rc = i2c_receive(&state, chip, 0, I2CF_START_COND | I2CF_STOP_COND, 1, - buf); - - if (rc != 0) - return rc; /* probe failed */ - - rc = i2c_doio(&state); - - if (rc == 0) - return 0; /* device exists - read succeeded */ - - if (rc == I2CERR_TIMEOUT) - return -1; /* device does not exist - timeout */ - - if (rc != I2CERR_IO_ERROR || err_flag == 0) - return rc; /* probe failed */ - - if (err_flag & 1) - return -1; /* device does not exist - had transmit NAK */ - - return 0; /* device exists - had receive overrun */ -} - - -int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len) -{ - i2c_state_t state; - uchar xaddr[4]; - int rc; - - xaddr[0] = (addr >> 24) & 0xFF; - xaddr[1] = (addr >> 16) & 0xFF; - xaddr[2] = (addr >> 8) & 0xFF; - xaddr[3] = addr & 0xFF; - -#ifdef CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW - /* - * EEPROM chips that implement "address overflow" are ones - * like Catalyst 24WC04/08/16 which has 9/10/11 bits of address - * and the extra bits end up in the "chip address" bit slots. - * This makes a 24WC08 (1Kbyte) chip look like four 256 byte - * chips. - * - * Note that we consider the length of the address field to still - * be one byte because the extra address bits are hidden in the - * chip address. - */ - chip |= ((addr >> (alen * 8)) & CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW); -#endif - - i2c_newio(&state); - - rc = i2c_send(&state, chip, 0, I2CF_START_COND, alen, - &xaddr[4 - alen]); - if (rc != 0) { - printf("i2c_read: i2c_send failed (%d)\n", rc); - return 1; - } - - rc = i2c_receive(&state, chip, 0, I2CF_STOP_COND, len, buffer); - if (rc != 0) { - printf("i2c_read: i2c_receive failed (%d)\n", rc); - return 1; - } - - rc = i2c_doio(&state); - if (rc != 0) { - printf("i2c_read: i2c_doio failed (%d)\n", rc); - return 1; - } - return 0; -} - -int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len) -{ - i2c_state_t state; - uchar xaddr[4]; - int rc; - - xaddr[0] = (addr >> 24) & 0xFF; - xaddr[1] = (addr >> 16) & 0xFF; - xaddr[2] = (addr >> 8) & 0xFF; - xaddr[3] = addr & 0xFF; - -#ifdef CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW - /* - * EEPROM chips that implement "address overflow" are ones - * like Catalyst 24WC04/08/16 which has 9/10/11 bits of address - * and the extra bits end up in the "chip address" bit slots. - * This makes a 24WC08 (1Kbyte) chip look like four 256 byte - * chips. - * - * Note that we consider the length of the address field to still - * be one byte because the extra address bits are hidden in the - * chip address. - */ - chip |= ((addr >> (alen * 8)) & CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW); -#endif - - i2c_newio(&state); - - rc = i2c_send(&state, chip, 0, I2CF_START_COND, alen, - &xaddr[4 - alen]); - if (rc != 0) { - printf("i2c_write: first i2c_send failed (%d)\n", rc); - return 1; - } - - rc = i2c_send(&state, 0, 0, I2CF_STOP_COND, len, buffer); - if (rc != 0) { - printf("i2c_write: second i2c_send failed (%d)\n", rc); - return 1; - } - - rc = i2c_doio(&state); - if (rc != 0) { - printf("i2c_write: i2c_doio failed (%d)\n", rc); - return 1; - } - return 0; -} - -#if defined(CONFIG_I2C_MULTI_BUS) -/* - * Functions for multiple I2C bus handling - */ -unsigned int i2c_get_bus_num(void) -{ - return i2c_bus_num; -} - -int i2c_set_bus_num(unsigned int bus) -{ - if (bus >= CONFIG_SYS_MAX_I2C_BUS) - return -1; - i2c_bus_num = bus; - return 0; -} - -#endif /* CONFIG_I2C_MULTI_BUS */ -#endif /* CONFIG_HARD_I2C */ diff --git a/arch/powerpc/cpu/mpc8xx/Makefile b/arch/powerpc/cpu/mpc8xx/Makefile index 6f81fee571..fc91a054f0 100644 --- a/arch/powerpc/cpu/mpc8xx/Makefile +++ b/arch/powerpc/cpu/mpc8xx/Makefile @@ -14,7 +14,6 @@ obj-y += cpu.o obj-y += cpu_init.o obj-y += fec.o obj-$(CONFIG_OF_LIBFDT) += fdt.o -obj-y += i2c.o obj-y += interrupts.o obj-y += scc.o obj-y += serial.o diff --git a/arch/powerpc/cpu/mpc8xx/i2c.c b/arch/powerpc/cpu/mpc8xx/i2c.c deleted file mode 100644 index 54d5cb5130..0000000000 --- a/arch/powerpc/cpu/mpc8xx/i2c.c +++ /dev/null @@ -1,672 +0,0 @@ -/* - * (C) Copyright 2000 - * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it - * - * (C) Copyright 2000 Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.de> - * - * SPDX-License-Identifier: GPL-2.0+ - * - * Back ported to the 8xx platform (from the 8260 platform) by - * Murray.Jensen@cmst.csiro.au, 27-Jan-01. - */ - -#include <common.h> -#include <console.h> - -#ifdef CONFIG_HARD_I2C - -#include <commproc.h> -#include <i2c.h> - -DECLARE_GLOBAL_DATA_PTR; - -/* tx/rx timeout (we need the i2c early, so we don't use get_timer()) */ -#define TOUT_LOOP 1000000 - -#define NUM_RX_BDS 4 -#define NUM_TX_BDS 4 -#define MAX_TX_SPACE 256 -#define I2C_RXTX_LEN 128 /* maximum tx/rx buffer length */ - -typedef struct I2C_BD { - unsigned short status; - unsigned short length; - unsigned char *addr; -} I2C_BD; - -#define BD_I2C_TX_START 0x0400 /* special status for i2c: Start condition */ - -#define BD_I2C_TX_CL 0x0001 /* collision error */ -#define BD_I2C_TX_UN 0x0002 /* underflow error */ -#define BD_I2C_TX_NAK 0x0004 /* no acknowledge error */ -#define BD_I2C_TX_ERR (BD_I2C_TX_NAK|BD_I2C_TX_UN|BD_I2C_TX_CL) - -#define BD_I2C_RX_ERR BD_SC_OV - -typedef void (*i2c_ecb_t) (int, int); /* error callback function */ - -/* This structure keeps track of the bd and buffer space usage. */ -typedef struct i2c_state { - int rx_idx; /* index to next free Rx BD */ - int tx_idx; /* index to next free Tx BD */ - void *rxbd; /* pointer to next free Rx BD */ - void *txbd; /* pointer to next free Tx BD */ - int tx_space; /* number of Tx bytes left */ - unsigned char *tx_buf; /* pointer to free Tx area */ - i2c_ecb_t err_cb; /* error callback function */ -} i2c_state_t; - - -/* flags for i2c_send() and i2c_receive() */ -#define I2CF_ENABLE_SECONDARY 0x01 /* secondary_address is valid */ -#define I2CF_START_COND 0x02 /* tx: generate start condition */ -#define I2CF_STOP_COND 0x04 /* tx: generate stop condition */ - -/* return codes */ -#define I2CERR_NO_BUFFERS 0x01 /* no more BDs or buffer space */ -#define I2CERR_MSG_TOO_LONG 0x02 /* tried to send/receive to much data */ -#define I2CERR_TIMEOUT 0x03 /* timeout in i2c_doio() */ -#define I2CERR_QUEUE_EMPTY 0x04 /* i2c_doio called without send/receive */ - -/* error callback flags */ -#define I2CECB_RX_ERR 0x10 /* this is a receive error */ -#define I2CECB_RX_ERR_OV 0x02 /* receive overrun error */ -#define I2CECB_RX_MASK 0x0f /* mask for error bits */ -#define I2CECB_TX_ERR 0x20 /* this is a transmit error */ -#define I2CECB_TX_CL 0x01 /* transmit collision error */ -#define I2CECB_TX_UN 0x02 /* transmit underflow error */ -#define I2CECB_TX_NAK 0x04 /* transmit no ack error */ -#define I2CECB_TX_MASK 0x0f /* mask for error bits */ -#define I2CECB_TIMEOUT 0x40 /* this is a timeout error */ - -/* - * Returns the best value of I2BRG to meet desired clock speed of I2C with - * input parameters (clock speed, filter, and predivider value). - * It returns computer speed value and the difference between it and desired - * speed. - */ -static inline int -i2c_roundrate(int hz, int speed, int filter, int modval, - int *brgval, int *totspeed) -{ - int moddiv = 1 << (5 - (modval & 3)), brgdiv, div; - - debug("\t[I2C] trying hz=%d, speed=%d, filter=%d, modval=%d\n", - hz, speed, filter, modval); - - div = moddiv * speed; - brgdiv = (hz + div - 1) / div; - - debug("\t\tmoddiv=%d, brgdiv=%d\n", moddiv, brgdiv); - - *brgval = ((brgdiv + 1) / 2) - 3 - (2 * filter); - - if ((*brgval < 0) || (*brgval > 255)) { - debug("\t\trejected brgval=%d\n", *brgval); - return -1; - } - - brgdiv = 2 * (*brgval + 3 + (2 * filter)); - div = moddiv * brgdiv; - *totspeed = hz / div; - - debug("\t\taccepted brgval=%d, totspeed=%d\n", *brgval, *totspeed); - - return 0; -} - -/* - * Sets the I2C clock predivider and divider to meet required clock speed. - */ -static int i2c_setrate(int hz, int speed) -{ - immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile i2c8xx_t *i2c = (i2c8xx_t *) & immap->im_i2c; - int brgval, - modval, /* 0-3 */ - bestspeed_diff = speed, - bestspeed_brgval = 0, - bestspeed_modval = 0, - bestspeed_filter = 0, - totspeed, - filter = 0; /* Use this fixed value */ - - for (modval = 0; modval < 4; modval++) { - if (i2c_roundrate - (hz, speed, filter, modval, &brgval, &totspeed) == 0) { - int diff = speed - totspeed; - - if ((diff >= 0) && (diff < bestspeed_diff)) { - bestspeed_diff = diff; - bestspeed_modval = modval; - bestspeed_brgval = brgval; - bestspeed_filter = filter; - } - } - } - - debug("[I2C] Best is:\n"); - debug("[I2C] CPU=%dhz RATE=%d F=%d I2MOD=%08x I2BRG=%08x DIFF=%dhz\n", - hz, - speed, - bestspeed_filter, - bestspeed_modval, - bestspeed_brgval, - bestspeed_diff); - - i2c->i2c_i2mod |= - ((bestspeed_modval & 3) << 1) | (bestspeed_filter << 3); - i2c->i2c_i2brg = bestspeed_brgval & 0xff; - - debug("[I2C] i2mod=%08x i2brg=%08x\n", - i2c->i2c_i2mod, - i2c->i2c_i2brg); - - return 1; -} - -void i2c_init(int speed, int slaveaddr) -{ - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile cpm8xx_t *cp = (cpm8xx_t *)&immap->im_cpm; - volatile i2c8xx_t *i2c = (i2c8xx_t *)&immap->im_i2c; - volatile iic_t *iip = (iic_t *)&cp->cp_dparam[PROFF_IIC]; - ulong rbase, tbase; - volatile I2C_BD *rxbd, *txbd; - uint dpaddr; - -#ifdef CONFIG_SYS_I2C_INIT_BOARD - /* call board specific i2c bus reset routine before accessing the */ - /* environment, which might be in a chip on that bus. For details */ - /* about this problem see doc/I2C_Edge_Conditions. */ - i2c_init_board(); -#endif - -#ifdef CONFIG_SYS_I2C_UCODE_PATCH - iip = (iic_t *)&cp->cp_dpmem[iip->iic_rpbase]; -#else - /* Disable relocation */ - iip->iic_rpbase = 0; -#endif - - dpaddr = CPM_I2C_BASE; - - /* - * initialise data in dual port ram: - * - * dpaddr->rbase -> rx BD (NUM_RX_BDS * sizeof(I2C_BD) bytes) - * tbase -> tx BD (NUM_TX_BDS * sizeof(I2C_BD) bytes) - * tx buffer (MAX_TX_SPACE bytes) - */ - - rbase = dpaddr; - tbase = rbase + NUM_RX_BDS * sizeof(I2C_BD); - - /* Initialize Port B I2C pins. */ - cp->cp_pbpar |= 0x00000030; - cp->cp_pbdir |= 0x00000030; - cp->cp_pbodr |= 0x00000030; - - /* Disable interrupts */ - i2c->i2c_i2mod = 0x00; - i2c->i2c_i2cmr = 0x00; - i2c->i2c_i2cer = 0xff; - i2c->i2c_i2add = slaveaddr; - - /* - * Set the I2C BRG Clock division factor from desired i2c rate - * and current CPU rate (we assume sccr dfbgr field is 0; - * divide BRGCLK by 1) - */ - debug("[I2C] Setting rate...\n"); - i2c_setrate(gd->cpu_clk, CONFIG_SYS_I2C_SPEED); - - /* Set I2C controller in master mode */ - i2c->i2c_i2com = 0x01; - - /* Set SDMA bus arbitration level to 5 (SDCR) */ - immap->im_siu_conf.sc_sdcr = 0x0001; - - /* Initialize Tx/Rx parameters */ - iip->iic_rbase = rbase; - iip->iic_tbase = tbase; - rxbd = (I2C_BD *) ((unsigned char *) &cp->cp_dpmem[iip->iic_rbase]); - txbd = (I2C_BD *) ((unsigned char *) &cp->cp_dpmem[iip->iic_tbase]); - - debug("[I2C] rbase = %04x\n", iip->iic_rbase); - debug("[I2C] tbase = %04x\n", iip->iic_tbase); - debug("[I2C] rxbd = %08x\n", (int)rxbd); - debug("[I2C] txbd = %08x\n", (int)txbd); - - /* Set big endian byte order */ - iip->iic_tfcr = 0x10; - iip->iic_rfcr = 0x10; - - /* Set maximum receive size. */ - iip->iic_mrblr = I2C_RXTX_LEN; - -#ifdef CONFIG_SYS_I2C_UCODE_PATCH - /* - * Initialize required parameters if using microcode patch. - */ - iip->iic_rbptr = iip->iic_rbase; - iip->iic_tbptr = iip->iic_tbase; - iip->iic_rstate = 0; - iip->iic_tstate = 0; -#else - cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_I2C, CPM_CR_INIT_TRX) | CPM_CR_FLG; - do { - __asm__ __volatile__("eieio"); - } while (cp->cp_cpcr & CPM_CR_FLG); -#endif - - /* Clear events and interrupts */ - i2c->i2c_i2cer = 0xff; - i2c->i2c_i2cmr = 0x00; -} - -static void i2c_newio(i2c_state_t *state) -{ - volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; - volatile cpm8xx_t *cp = (cpm8xx_t *)&immap->im_cpm; - volatile iic_t *iip = (iic_t *)&cp->cp_dparam[PROFF_IIC]; - - debug("[I2C] i2c_newio\n"); - -#ifdef CONFIG_SYS_I2C_UCODE_PATCH - iip = (iic_t *)&cp->cp_dpmem[iip->iic_rpbase]; -#endif - state->rx_idx = 0; - state->tx_idx = 0; - state->rxbd = (void *)&cp->cp_dpmem[iip->iic_rbase]; - state->txbd = (void *)&cp->cp_dpmem[iip->iic_tbase]; - state->tx_space = MAX_TX_SPACE; - state->tx_buf = (uchar *)state->txbd + NUM_TX_BDS * sizeof(I2C_BD); - state->err_cb = NULL; - - debug("[I2C] rxbd = %08x\n", (int)state->rxbd); - debug("[I2C] txbd = %08x\n", (int)state->txbd); - debug("[I2C] tx_buf = %08x\n", (int)state->tx_buf); - - /* clear the buffer memory */ - memset((char *)state->tx_buf, 0, MAX_TX_SPACE); -} - -static int -i2c_send(i2c_state_t *state, - unsigned char address, - unsigned char secondary_address, - unsigned int flags, unsigned short size, unsigned char *dataout) -{ - volatile I2C_BD *txbd; - int i, j; - - debug("[I2C] i2c_send add=%02d sec=%02d flag=%02d size=%d\n", - address, secondary_address, flags, size); - - /* trying to send message larger than BD */ - if (size > I2C_RXTX_LEN) - return I2CERR_MSG_TOO_LONG; - - /* no more free bds */ - if (state->tx_idx >= NUM_TX_BDS || state->tx_space < (2 + size)) - return I2CERR_NO_BUFFERS; - - txbd = (I2C_BD *) state->txbd; - txbd->addr = state->tx_buf; - - debug("[I2C] txbd = %08x\n", (int)txbd); - - if (flags & I2CF_START_COND) { - debug("[I2C] Formatting addresses...\n"); - if (flags & I2CF_ENABLE_SECONDARY) { - /* Length of msg + dest addr */ - txbd->length = size + 2; - - txbd->addr[0] = address << 1; - txbd->addr[1] = secondary_address; - i = 2; - } else { - /* Length of msg + dest addr */ - txbd->length = size + 1; - /* Write dest addr to BD */ - txbd->addr[0] = address << 1; - i = 1; - } - } else { - txbd->length = size; /* Length of message */ - i = 0; - } - - /* set up txbd */ - txbd->status = BD_SC_READY; - if (flags & I2CF_START_COND) - txbd->status |= BD_I2C_TX_START; - if (flags & I2CF_STOP_COND) - txbd->status |= BD_SC_LAST | BD_SC_WRAP; - - /* Copy data to send into buffer */ - debug("[I2C] copy data...\n"); - for(j = 0; j < size; i++, j++) - txbd->addr[i] = dataout[j]; - - debug("[I2C] txbd: length=0x%04x status=0x%04x addr[0]=0x%02x addr[1]=0x%02x\n", - txbd->length, - txbd->status, - txbd->addr[0], - txbd->addr[1]); - - /* advance state */ - state->tx_buf += txbd->length; - state->tx_space -= txbd->length; - state->tx_idx++; - state->txbd = (void *) (txbd + 1); - - return 0; -} - -static int -i2c_receive(i2c_state_t *state, - unsigned char address, - unsigned char secondary_address, - unsigned int flags, - unsigned short size_to_expect, unsigned char *datain) -{ - volatile I2C_BD *rxbd, *txbd; - - debug("[I2C] i2c_receive %02d %02d %02d\n", - address, secondary_address, flags); - - /* Expected to receive too much */ - if (size_to_expect > I2C_RXTX_LEN) - return I2CERR_MSG_TOO_LONG; - - /* no more free bds */ - if (state->tx_idx >= NUM_TX_BDS || state->rx_idx >= NUM_RX_BDS - || state->tx_space < 2) - return I2CERR_NO_BUFFERS; - - rxbd = (I2C_BD *) state->rxbd; - txbd = (I2C_BD *) state->txbd; - - debug("[I2C] rxbd = %08x\n", (int)rxbd); - debug("[I2C] txbd = %08x\n", (int)txbd); - - txbd->addr = state->tx_buf; - - /* set up TXBD for destination address */ - if (flags & I2CF_ENABLE_SECONDARY) { - txbd->length = 2; - txbd->addr[0] = address << 1; /* Write data */ - txbd->addr[1] = secondary_address; /* Internal address */ - txbd->status = BD_SC_READY; - } else { - txbd->length = 1 + size_to_expect; - txbd->addr[0] = (address << 1) | 0x01; - txbd->status = BD_SC_READY; - memset(&txbd->addr[1], 0, txbd->length); - } - - /* set up rxbd for reception */ - rxbd->status = BD_SC_EMPTY; - rxbd->length = size_to_expect; - rxbd->addr = datain; - - txbd->status |= BD_I2C_TX_START; - if (flags & I2CF_STOP_COND) { - txbd->status |= BD_SC_LAST | BD_SC_WRAP; - rxbd->status |= BD_SC_WRAP; - } - - debug("[I2C] txbd: length=0x%04x status=0x%04x addr[0]=0x%02x addr[1]=0x%02x\n", - txbd->length, - txbd->status, - txbd->addr[0], - txbd->addr[1]); - debug("[I2C] rxbd: length=0x%04x status=0x%04x addr[0]=0x%02x addr[1]=0x%02x\n", - rxbd->length, - rxbd->status, - rxbd->addr[0], - rxbd->addr[1]); - - /* advance state */ - state->tx_buf += txbd->length; - state->tx_space -= txbd->length; - state->tx_idx++; - state->txbd = (void *) (txbd + 1); - state->rx_idx++; - state->rxbd = (void *) (rxbd + 1); - - return 0; -} - - -static int i2c_doio(i2c_state_t *state) -{ - volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; - volatile cpm8xx_t *cp = (cpm8xx_t *)&immap->im_cpm; - volatile i2c8xx_t *i2c = (i2c8xx_t *)&immap->im_i2c; - volatile iic_t *iip = (iic_t *)&cp->cp_dparam[PROFF_IIC]; - volatile I2C_BD *txbd, *rxbd; - volatile int j = 0; - - debug("[I2C] i2c_doio\n"); - -#ifdef CONFIG_SYS_I2C_UCODE_PATCH - iip = (iic_t *)&cp->cp_dpmem[iip->iic_rpbase]; -#endif - - if (state->tx_idx <= 0 && state->rx_idx <= 0) { - debug("[I2C] No I/O is queued\n"); - return I2CERR_QUEUE_EMPTY; - } - - iip->iic_rbptr = iip->iic_rbase; - iip->iic_tbptr = iip->iic_tbase; - - /* Enable I2C */ - debug("[I2C] Enabling I2C...\n"); - i2c->i2c_i2mod |= 0x01; - - /* Begin transmission */ - i2c->i2c_i2com |= 0x80; - - /* Loop until transmit & receive completed */ - - if (state->tx_idx > 0) { - txbd = ((I2C_BD*)state->txbd) - 1; - - debug("[I2C] Transmitting...(txbd=0x%08lx)\n", - (ulong)txbd); - - while ((txbd->status & BD_SC_READY) && (j++ < TOUT_LOOP)) { - if (ctrlc()) - return (-1); - - __asm__ __volatile__("eieio"); - } - } - - if ((state->rx_idx > 0) && (j < TOUT_LOOP)) { - rxbd = ((I2C_BD*)state->rxbd) - 1; - - debug("[I2C] Receiving...(rxbd=0x%08lx)\n", - (ulong)rxbd); - - while ((rxbd->status & BD_SC_EMPTY) && (j++ < TOUT_LOOP)) { - if (ctrlc()) - return (-1); - - __asm__ __volatile__("eieio"); - } - } - - /* Turn off I2C */ - i2c->i2c_i2mod &= ~0x01; - - if (state->err_cb != NULL) { - int n, i, b; - - /* - * if we have an error callback function, look at the - * error bits in the bd status and pass them back - */ - - if ((n = state->tx_idx) > 0) { - for (i = 0; i < n; i++) { - txbd = ((I2C_BD *) state->txbd) - (n - i); - if ((b = txbd->status & BD_I2C_TX_ERR) != 0) - (*state->err_cb) (I2CECB_TX_ERR | b, - i); - } - } - - if ((n = state->rx_idx) > 0) { - for (i = 0; i < n; i++) { - rxbd = ((I2C_BD *) state->rxbd) - (n - i); - if ((b = rxbd->status & BD_I2C_RX_ERR) != 0) - (*state->err_cb) (I2CECB_RX_ERR | b, - i); - } - } - - if (j >= TOUT_LOOP) - (*state->err_cb) (I2CECB_TIMEOUT, 0); - } - - return (j >= TOUT_LOOP) ? I2CERR_TIMEOUT : 0; -} - -static int had_tx_nak; - -static void i2c_test_callback(int flags, int xnum) -{ - if ((flags & I2CECB_TX_ERR) && (flags & I2CECB_TX_NAK)) - had_tx_nak = 1; -} - -int i2c_probe(uchar chip) -{ - i2c_state_t state; - int rc; - uchar buf[1]; - - i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); - - i2c_newio(&state); - - state.err_cb = i2c_test_callback; - had_tx_nak = 0; - - rc = i2c_receive(&state, chip, 0, I2CF_START_COND | I2CF_STOP_COND, 1, - buf); - - if (rc != 0) - return (rc); - - rc = i2c_doio(&state); - - if ((rc != 0) && (rc != I2CERR_TIMEOUT)) - return (rc); - - return (had_tx_nak); -} - -int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len) -{ - i2c_state_t state; - uchar xaddr[4]; - int rc; - - xaddr[0] = (addr >> 24) & 0xFF; - xaddr[1] = (addr >> 16) & 0xFF; - xaddr[2] = (addr >> 8) & 0xFF; - xaddr[3] = addr & 0xFF; - -#ifdef CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW - /* - * EEPROM chips that implement "address overflow" are ones like - * Catalyst 24WC04/08/16 which has 9/10/11 bits of address and the - * extra bits end up in the "chip address" bit slots. This makes - * a 24WC08 (1Kbyte) chip look like four 256 byte chips. - * - * Note that we consider the length of the address field to still - * be one byte because the extra address bits are hidden in the - * chip address. - */ - chip |= ((addr >> (alen * 8)) & CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW); -#endif - - i2c_newio(&state); - - rc = i2c_send(&state, chip, 0, I2CF_START_COND, alen, - &xaddr[4 - alen]); - if (rc != 0) { - printf("i2c_read: i2c_send failed (%d)\n", rc); - return 1; - } - - rc = i2c_receive(&state, chip, 0, I2CF_STOP_COND, len, buffer); - if (rc != 0) { - printf("i2c_read: i2c_receive failed (%d)\n", rc); - return 1; - } - - rc = i2c_doio(&state); - if (rc != 0) { - printf("i2c_read: i2c_doio failed (%d)\n", rc); - return 1; - } - return 0; -} - -int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len) -{ - i2c_state_t state; - uchar xaddr[4]; - int rc; - - xaddr[0] = (addr >> 24) & 0xFF; - xaddr[1] = (addr >> 16) & 0xFF; - xaddr[2] = (addr >> 8) & 0xFF; - xaddr[3] = addr & 0xFF; - -#ifdef CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW - /* - * EEPROM chips that implement "address overflow" are ones like - * Catalyst 24WC04/08/16 which has 9/10/11 bits of address and the - * extra bits end up in the "chip address" bit slots. This makes - * a 24WC08 (1Kbyte) chip look like four 256 byte chips. - * - * Note that we consider the length of the address field to still - * be one byte because the extra address bits are hidden in the - * chip address. - */ - chip |= ((addr >> (alen * 8)) & CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW); -#endif - - i2c_newio(&state); - - rc = i2c_send(&state, chip, 0, I2CF_START_COND, alen, - &xaddr[4 - alen]); - if (rc != 0) { - printf("i2c_write: first i2c_send failed (%d)\n", rc); - return 1; - } - - rc = i2c_send(&state, 0, 0, I2CF_STOP_COND, len, buffer); - if (rc != 0) { - printf("i2c_write: second i2c_send failed (%d)\n", rc); - return 1; - } - - rc = i2c_doio(&state); - if (rc != 0) { - printf("i2c_write: i2c_doio failed (%d)\n", rc); - return 1; - } - return 0; -} - -#endif /* CONFIG_HARD_I2C */ |