diff options
Diffstat (limited to 'arch/arm/mach-omap2/am33xx')
| -rw-r--r-- | arch/arm/mach-omap2/am33xx/Makefile | 3 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/am33xx/board.c | 21 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/am33xx/clock_ti816x.c | 68 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/am33xx/ddr.c | 9 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/am33xx/emif4.c | 41 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/am33xx/ti816x_emif4.c | 165 |
6 files changed, 211 insertions, 96 deletions
diff --git a/arch/arm/mach-omap2/am33xx/Makefile b/arch/arm/mach-omap2/am33xx/Makefile index 05cc8a11c5..1e4c04e7a6 100644 --- a/arch/arm/mach-omap2/am33xx/Makefile +++ b/arch/arm/mach-omap2/am33xx/Makefile @@ -15,7 +15,10 @@ endif obj-$(CONFIG_TI816X) += clock_ti816x.o obj-y += sys_info.o obj-y += ddr.o +ifeq ($(CONFIG_TI816X)$(CONFIG_SKIP_LOWLEVEL_INIT),) obj-y += emif4.o +endif +obj-$(CONFIG_TI816X) += ti816x_emif4.o obj-y += board.o obj-y += mux.o diff --git a/arch/arm/mach-omap2/am33xx/board.c b/arch/arm/mach-omap2/am33xx/board.c index a8b5d13238..faf7d07a03 100644 --- a/arch/arm/mach-omap2/am33xx/board.c +++ b/arch/arm/mach-omap2/am33xx/board.c @@ -39,6 +39,27 @@ DECLARE_GLOBAL_DATA_PTR; +int dram_init(void) +{ +#ifndef CONFIG_SKIP_LOWLEVEL_INIT + sdram_init(); +#endif + + /* dram_init must store complete ramsize in gd->ram_size */ + gd->ram_size = get_ram_size( + (void *)CONFIG_SYS_SDRAM_BASE, + CONFIG_MAX_RAM_BANK_SIZE); + return 0; +} + +int dram_init_banksize(void) +{ + gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; + gd->bd->bi_dram[0].size = gd->ram_size; + + return 0; +} + #if !CONFIG_IS_ENABLED(OF_CONTROL) static const struct ns16550_platdata am33xx_serial[] = { { .base = CONFIG_SYS_NS16550_COM1, .reg_shift = 2, diff --git a/arch/arm/mach-omap2/am33xx/clock_ti816x.c b/arch/arm/mach-omap2/am33xx/clock_ti816x.c index 079ddd7eb9..967623d467 100644 --- a/arch/arm/mach-omap2/am33xx/clock_ti816x.c +++ b/arch/arm/mach-omap2/am33xx/clock_ti816x.c @@ -54,55 +54,6 @@ #define MAIN_MDIV7 0x4 /* DDR PLL */ -#if defined(CONFIG_TI816X_DDR_PLL_400) /* 400 MHz */ -#define DDR_N 59 -#define DDR_P 0x1 -#define DDR_MDIV1 0x4 -#define DDR_INTFREQ2 0x8 -#define DDR_FRACFREQ2 0xD99999 -#define DDR_MDIV2 0x1E -#define DDR_INTFREQ3 0x8 -#define DDR_FRACFREQ3 0x0 -#define DDR_MDIV3 0x4 -#define DDR_INTFREQ4 0xE /* Expansion DDR clk */ -#define DDR_FRACFREQ4 0x0 -#define DDR_MDIV4 0x4 -#define DDR_INTFREQ5 0xE /* Expansion DDR clk */ -#define DDR_FRACFREQ5 0x0 -#define DDR_MDIV5 0x4 -#elif defined(CONFIG_TI816X_DDR_PLL_531) /* 531 MHz */ -#define DDR_N 59 -#define DDR_P 0x1 -#define DDR_MDIV1 0x3 -#define DDR_INTFREQ2 0x8 -#define DDR_FRACFREQ2 0xD99999 -#define DDR_MDIV2 0x1E -#define DDR_INTFREQ3 0x8 -#define DDR_FRACFREQ3 0x0 -#define DDR_MDIV3 0x4 -#define DDR_INTFREQ4 0xE /* Expansion DDR clk */ -#define DDR_FRACFREQ4 0x0 -#define DDR_MDIV4 0x4 -#define DDR_INTFREQ5 0xE /* Expansion DDR clk */ -#define DDR_FRACFREQ5 0x0 -#define DDR_MDIV5 0x4 -#elif defined(CONFIG_TI816X_DDR_PLL_675) /* 675 MHz */ -#define DDR_N 50 -#define DDR_P 0x1 -#define DDR_MDIV1 0x2 -#define DDR_INTFREQ2 0x9 -#define DDR_FRACFREQ2 0x0 -#define DDR_MDIV2 0x19 -#define DDR_INTFREQ3 0x13 -#define DDR_FRACFREQ3 0x800000 -#define DDR_MDIV3 0x2 -#define DDR_INTFREQ4 0xE /* Expansion DDR clk */ -#define DDR_FRACFREQ4 0x0 -#define DDR_MDIV4 0x4 -#define DDR_INTFREQ5 0xE /* Expansion DDR clk */ -#define DDR_FRACFREQ5 0x0 -#define DDR_MDIV5 0x4 -#elif defined(CONFIG_TI816X_DDR_PLL_796) /* 796 MHz */ #define DDR_N 59 #define DDR_P 0x1 #define DDR_MDIV1 0x2 @@ -118,12 +69,10 @@ #define DDR_INTFREQ5 0xE /* Expansion DDR clk */ #define DDR_FRACFREQ5 0x0 #define DDR_MDIV5 0x4 -#endif #define CONTROL_STATUS (CTRL_BASE + 0x40) #define DDR_RCD (CTRL_BASE + 0x070C) #define CM_TIMER1_CLKSEL (PRCM_BASE + 0x390) -#define DMM_PAT_BASE_ADDR (DMM_BASE + 0x420) #define CM_ALWON_CUST_EFUSE_CLKCTRL (PRCM_BASE + 0x1628) #define INTCPS_SYSCONFIG 0x48200010 @@ -187,6 +136,15 @@ const struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE; void enable_dmm_clocks(void) { + writel(PRCM_MOD_EN, &cmdef->dmmclkctrl); + /* Wait for dmm to be fully functional, including OCP */ + while (((readl(&cmdef->dmmclkctrl) >> 17) & 0x3) != 0) + ; +} + +void enable_emif_clocks(void) +{ + writel(PRCM_MOD_EN, &cmdef->fwclkctrl); writel(PRCM_MOD_EN, &cmdef->l3fastclkstctrl); writel(PRCM_MOD_EN, &cmdef->emif0clkctrl); writel(PRCM_MOD_EN, &cmdef->emif1clkctrl); @@ -200,14 +158,6 @@ void enable_dmm_clocks(void) /* Wait for emif1 to be fully functional, including OCP */ while (((readl(&cmdef->emif1clkctrl) >> 17) & 0x3) != 0) ; - - writel(PRCM_MOD_EN, &cmdef->dmmclkctrl); - /* Wait for dmm to be fully functional, including OCP */ - while (((readl(&cmdef->dmmclkctrl) >> 17) & 0x3) != 0) - ; - - /* Enable Tiled Access */ - writel(0x80000000, DMM_PAT_BASE_ADDR); } /* assume delay is aprox at least 1us */ diff --git a/arch/arm/mach-omap2/am33xx/ddr.c b/arch/arm/mach-omap2/am33xx/ddr.c index 690487e7c3..7bf19ed966 100644 --- a/arch/arm/mach-omap2/am33xx/ddr.c +++ b/arch/arm/mach-omap2/am33xx/ddr.c @@ -163,6 +163,14 @@ void config_sdram_emif4d5(const struct emif_regs *regs, int nr) */ void config_sdram(const struct emif_regs *regs, int nr) { +#ifdef CONFIG_TI816X + writel(regs->sdram_config, &emif_reg[nr]->emif_sdram_config); + writel(regs->emif_ddr_phy_ctlr_1, &emif_reg[nr]->emif_ddr_phy_ctrl_1); + writel(regs->emif_ddr_phy_ctlr_1, &emif_reg[nr]->emif_ddr_phy_ctrl_1_shdw); + writel(0x0000613B, &emif_reg[nr]->emif_sdram_ref_ctrl); /* initially a large refresh period */ + writel(0x1000613B, &emif_reg[nr]->emif_sdram_ref_ctrl); /* trigger initialization */ + writel(regs->ref_ctrl, &emif_reg[nr]->emif_sdram_ref_ctrl); +#else if (regs->zq_config) { writel(regs->zq_config, &emif_reg[nr]->emif_zq_config); writel(regs->sdram_config, &cstat->secure_emif_sdram_config); @@ -184,6 +192,7 @@ void config_sdram(const struct emif_regs *regs, int nr) /* Write REG_COS_COUNT_1, REG_COS_COUNT_2, and REG_PR_OLD_COUNT. */ if (regs->ocp_config) writel(regs->ocp_config, &emif_reg[nr]->emif_l3_config); +#endif } /** diff --git a/arch/arm/mach-omap2/am33xx/emif4.c b/arch/arm/mach-omap2/am33xx/emif4.c index 3a110f2845..68c7705178 100644 --- a/arch/arm/mach-omap2/am33xx/emif4.c +++ b/arch/arm/mach-omap2/am33xx/emif4.c @@ -17,40 +17,9 @@ #include <asm/io.h> #include <asm/emif.h> -DECLARE_GLOBAL_DATA_PTR; - -int dram_init(void) -{ -#ifndef CONFIG_SKIP_LOWLEVEL_INIT - sdram_init(); -#endif - - /* dram_init must store complete ramsize in gd->ram_size */ - gd->ram_size = get_ram_size( - (void *)CONFIG_SYS_SDRAM_BASE, - CONFIG_MAX_RAM_BANK_SIZE); - return 0; -} - -int dram_init_banksize(void) -{ - gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; - gd->bd->bi_dram[0].size = gd->ram_size; - - return 0; -} - - -#ifndef CONFIG_SKIP_LOWLEVEL_INIT -#ifdef CONFIG_TI81XX -static struct dmm_lisa_map_regs *hw_lisa_map_regs = - (struct dmm_lisa_map_regs *)DMM_BASE; -#endif -#ifndef CONFIG_TI816X static struct vtp_reg *vtpreg[2] = { (struct vtp_reg *)VTP0_CTRL_ADDR, (struct vtp_reg *)VTP1_CTRL_ADDR}; -#endif #ifdef CONFIG_AM33XX static struct ddr_ctrl *ddrctrl = (struct ddr_ctrl *)DDR_CTRL_ADDR; #endif @@ -60,9 +29,12 @@ static struct cm_device_inst *cm_device = (struct cm_device_inst *)CM_DEVICE_INST; #endif -#ifdef CONFIG_TI81XX +#ifdef CONFIG_TI814X void config_dmm(const struct dmm_lisa_map_regs *regs) { + struct dmm_lisa_map_regs *hw_lisa_map_regs = + (struct dmm_lisa_map_regs *)DMM_BASE; + enable_dmm_clocks(); writel(0, &hw_lisa_map_regs->dmm_lisa_map_3); @@ -77,7 +49,6 @@ void config_dmm(const struct dmm_lisa_map_regs *regs) } #endif -#ifndef CONFIG_TI816X static void config_vtp(int nr) { writel(readl(&vtpreg[nr]->vtp0ctrlreg) | VTP_CTRL_ENABLE, @@ -92,7 +63,6 @@ static void config_vtp(int nr) VTP_CTRL_READY) ; } -#endif void __weak ddr_pll_config(unsigned int ddrpll_m) { @@ -103,9 +73,7 @@ void config_ddr(unsigned int pll, const struct ctrl_ioregs *ioregs, const struct emif_regs *regs, int nr) { ddr_pll_config(pll); -#ifndef CONFIG_TI816X config_vtp(nr); -#endif config_cmd_ctrl(ctrl, nr); config_ddr_data(data, nr); @@ -139,4 +107,3 @@ void config_ddr(unsigned int pll, const struct ctrl_ioregs *ioregs, else config_sdram(regs, nr); } -#endif diff --git a/arch/arm/mach-omap2/am33xx/ti816x_emif4.c b/arch/arm/mach-omap2/am33xx/ti816x_emif4.c new file mode 100644 index 0000000000..2e7ea90da9 --- /dev/null +++ b/arch/arm/mach-omap2/am33xx/ti816x_emif4.c @@ -0,0 +1,165 @@ +/* + * ti816x_emif4.c + * + * TI816x emif4 configuration file + * + * Copyright (C) 2017, Konsulko Group + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/arch/cpu.h> +#include <asm/arch/ddr_defs.h> +#include <asm/arch/hardware.h> +#include <asm/arch/clock.h> +#include <asm/arch/sys_proto.h> +#include <asm/io.h> +#include <asm/emif.h> + +/********************************************************************* + * Init DDR3 on TI816X EVM + *********************************************************************/ +static void ddr_init_settings(const struct cmd_control *ctrl, int emif) +{ + /* + * setup use_rank_delays to 1. This is only necessary when + * multiple ranks are in use. Though the EVM does not have + * multiple ranks, this is a good value to set. + */ + writel(1, DDRPHY_CONFIG_BASE + 0x134); // DATA0_REG_PHY_USE_RANK0_DELAYS + writel(1, DDRPHY_CONFIG_BASE + 0x1d8); // DATA1_REG_PHY_USE_RANK0_DELAYS + writel(1, DDRPHY_CONFIG_BASE + 0x27c); // DATA2_REG_PHY_USE_RANK0_DELAYS + writel(1, DDRPHY_CONFIG_BASE + 0x320); // DATA3_REG_PHY_USE_RANK0_DELAYS + + config_cmd_ctrl(ctrl, emif); + + /* for ddr3 this needs to be set to 1 */ + writel(0x1, DDRPHY_CONFIG_BASE + 0x0F8); /* init mode */ + writel(0x1, DDRPHY_CONFIG_BASE + 0x104); + writel(0x1, DDRPHY_CONFIG_BASE + 0x19C); + writel(0x1, DDRPHY_CONFIG_BASE + 0x1A8); + writel(0x1, DDRPHY_CONFIG_BASE + 0x240); + writel(0x1, DDRPHY_CONFIG_BASE + 0x24C); + writel(0x1, DDRPHY_CONFIG_BASE + 0x2E4); + writel(0x1, DDRPHY_CONFIG_BASE + 0x2F0); + + /* + * This represents the initial value for the leveling process. The + * value is a ratio - so 0x100 represents one cycle. The real delay + * is determined through the leveling process. + * + * During the leveling process, 0x20 is subtracted from the value, so + * we have added that to the value we want to set. We also set the + * values such that byte3 completes leveling after byte2 and byte1 + * after byte0. + */ + writel((0x20 << 10) | 0x20, DDRPHY_CONFIG_BASE + 0x0F0); /* data0 writelvl init ratio */ + writel(0x0, DDRPHY_CONFIG_BASE + 0x0F4); /* */ + writel((0x20 << 10) | 0x20, DDRPHY_CONFIG_BASE + 0x194); /* data1 writelvl init ratio */ + writel(0x0, DDRPHY_CONFIG_BASE + 0x198); /* */ + writel((0x20 << 10) | 0x20, DDRPHY_CONFIG_BASE + 0x238); /* data2 writelvl init ratio */ + writel(0x0, DDRPHY_CONFIG_BASE + 0x23c); /* */ + writel((0x20 << 10) | 0x20, DDRPHY_CONFIG_BASE + 0x2dc); /* data3 writelvl init ratio */ + writel(0x0, DDRPHY_CONFIG_BASE + 0x2e0); /* */ + + + writel((0x20 << 10) | 0x20, DDRPHY_CONFIG_BASE + 0x0FC); /* data0 gatelvl init ratio */ + writel(0x0, DDRPHY_CONFIG_BASE + 0x100); + writel((0x20 << 10) | 0x20, DDRPHY_CONFIG_BASE + 0x1A0); /* data1 gatelvl init ratio */ + writel(0x0, DDRPHY_CONFIG_BASE + 0x1A4); + writel((0x20 << 10) | 0x20, DDRPHY_CONFIG_BASE + 0x244); /* data2 gatelvl init ratio */ + writel(0x0, DDRPHY_CONFIG_BASE + 0x248); + writel((0x20 << 10) | 0x20, DDRPHY_CONFIG_BASE + 0x2E8); /* data3 gatelvl init ratio */ + writel(0x0, DDRPHY_CONFIG_BASE + 0x2EC); + + writel(0x5, DDRPHY_CONFIG_BASE + 0x00C); /* cmd0 io config - output impedance of pad */ + writel(0x5, DDRPHY_CONFIG_BASE + 0x010); /* cmd0 io clk config - output impedance of pad */ + writel(0x5, DDRPHY_CONFIG_BASE + 0x040); /* cmd1 io config - output impedance of pad */ + writel(0x5, DDRPHY_CONFIG_BASE + 0x044); /* cmd1 io clk config - output impedance of pad */ + writel(0x5, DDRPHY_CONFIG_BASE + 0x074); /* cmd2 io config - output impedance of pad */ + writel(0x5, DDRPHY_CONFIG_BASE + 0x078); /* cmd2 io clk config - output impedance of pad */ + writel(0x4, DDRPHY_CONFIG_BASE + 0x0A8); /* data0 io config - output impedance of pad */ + writel(0x4, DDRPHY_CONFIG_BASE + 0x0AC); /* data0 io clk config - output impedance of pad */ + writel(0x4, DDRPHY_CONFIG_BASE + 0x14C); /* data1 io config - output impedance of pa */ + writel(0x4, DDRPHY_CONFIG_BASE + 0x150); /* data1 io clk config - output impedance of pad */ + writel(0x4, DDRPHY_CONFIG_BASE + 0x1F0); /* data2 io config - output impedance of pa */ + writel(0x4, DDRPHY_CONFIG_BASE + 0x1F4); /* data2 io clk config - output impedance of pad */ + writel(0x4, DDRPHY_CONFIG_BASE + 0x294); /* data3 io config - output impedance of pa */ + writel(0x4, DDRPHY_CONFIG_BASE + 0x298); /* data3 io clk config - output impedance of pad */ +} + +static void ddr3_sw_levelling(const struct ddr_data *data, int emif) +{ + /* Set the correct value to DDR_VTP_CTRL_0 */ + writel(0x6, (DDRPHY_CONFIG_BASE + 0x358)); + + writel(data->datafwsratio0, (DDRPHY_CONFIG_BASE + 0x108)); + writel(data->datafwsratio0, (DDRPHY_CONFIG_BASE + 0x1AC)); + writel(data->datafwsratio0, (DDRPHY_CONFIG_BASE + 0x250)); + writel(data->datafwsratio0, (DDRPHY_CONFIG_BASE + 0x2F4)); + + writel(data->datawdsratio0, (DDRPHY_CONFIG_BASE + 0x0DC)); + writel(data->datawdsratio0, (DDRPHY_CONFIG_BASE + 0x180)); + writel(data->datawdsratio0, (DDRPHY_CONFIG_BASE + 0x224)); + writel(data->datawdsratio0, (DDRPHY_CONFIG_BASE + 0x2C8)); + + writel(data->datawrsratio0, (DDRPHY_CONFIG_BASE + 0x120)); + writel(data->datawrsratio0, (DDRPHY_CONFIG_BASE + 0x1C4)); + writel(data->datawrsratio0, (DDRPHY_CONFIG_BASE + 0x268)); + writel(data->datawrsratio0, (DDRPHY_CONFIG_BASE + 0x30C)); + + writel(data->datardsratio0, (DDRPHY_CONFIG_BASE + 0x0C8)); + writel(data->datardsratio0, (DDRPHY_CONFIG_BASE + 0x16C)); + writel(data->datardsratio0, (DDRPHY_CONFIG_BASE + 0x210)); + writel(data->datardsratio0, (DDRPHY_CONFIG_BASE + 0x2B4)); +} + +static struct dmm_lisa_map_regs *hw_lisa_map_regs = + (struct dmm_lisa_map_regs *)DMM_BASE; + +#define DMM_PAT_BASE_ADDR (DMM_BASE + 0x420) +void config_dmm(const struct dmm_lisa_map_regs *regs) +{ + writel(0, &hw_lisa_map_regs->dmm_lisa_map_3); + writel(0, &hw_lisa_map_regs->dmm_lisa_map_2); + writel(0, &hw_lisa_map_regs->dmm_lisa_map_1); + writel(0, &hw_lisa_map_regs->dmm_lisa_map_0); + + writel(regs->dmm_lisa_map_3, &hw_lisa_map_regs->dmm_lisa_map_3); + writel(regs->dmm_lisa_map_2, &hw_lisa_map_regs->dmm_lisa_map_2); + writel(regs->dmm_lisa_map_1, &hw_lisa_map_regs->dmm_lisa_map_1); + writel(regs->dmm_lisa_map_0, &hw_lisa_map_regs->dmm_lisa_map_0); + + /* Enable Tiled Access */ + writel(0x80000000, DMM_PAT_BASE_ADDR); +} + +void config_ddr(const struct ddr_data *data, const struct cmd_control *ctrl, + const struct emif_regs *regs, + const struct dmm_lisa_map_regs *lisa_regs, int nrs) +{ + int i; + + enable_emif_clocks(); + + for (i = 0; i < nrs; i++) + ddr_init_settings(ctrl, i); + + enable_dmm_clocks(); + + /* Program the DMM to for non-interleaved configuration */ + config_dmm(lisa_regs); + + /* Program EMIF CFG Registers */ + for (i = 0; i < nrs; i++) { + set_sdram_timings(regs, i); + config_sdram(regs, i); + } + + udelay(1000); + for (i = 0; i < nrs; i++) + ddr3_sw_levelling(data, i); + + udelay(50000); /* Some delay needed */ +} |