diff options
Diffstat (limited to 'board/freescale/t4qds/t4240qds.c')
| -rw-r--r-- | board/freescale/t4qds/t4240qds.c | 929 |
1 files changed, 0 insertions, 929 deletions
diff --git a/board/freescale/t4qds/t4240qds.c b/board/freescale/t4qds/t4240qds.c deleted file mode 100644 index 543a2cb6e2..0000000000 --- a/board/freescale/t4qds/t4240qds.c +++ /dev/null @@ -1,929 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Copyright 2009-2012 Freescale Semiconductor, Inc. - * Copyright 2020 NXP - */ - -#include <common.h> -#include <command.h> -#include <env.h> -#include <fdt_support.h> -#include <i2c.h> -#include <image.h> -#include <init.h> -#include <irq_func.h> -#include <log.h> -#include <netdev.h> -#include <linux/compiler.h> -#include <asm/mmu.h> -#include <asm/processor.h> -#include <asm/cache.h> -#include <asm/immap_85xx.h> -#include <asm/fsl_law.h> -#include <asm/fsl_serdes.h> -#include <asm/fsl_liodn.h> -#include <fm_eth.h> -#include <linux/delay.h> - -#include "../common/qixis.h" -#include "../common/vsc3316_3308.h" -#include "t4qds.h" -#include "t4240qds_qixis.h" - -DECLARE_GLOBAL_DATA_PTR; - -static int8_t vsc3316_fsm1_tx[8][2] = { {0, 0}, {1, 1}, {6, 6}, {7, 7}, - {8, 8}, {9, 9}, {14, 14}, {15, 15} }; - -static int8_t vsc3316_fsm2_tx[8][2] = { {2, 2}, {3, 3}, {4, 4}, {5, 5}, - {10, 10}, {11, 11}, {12, 12}, {13, 13} }; - -static int8_t vsc3316_fsm1_rx[8][2] = { {2, 12}, {3, 13}, {4, 5}, {5, 4}, - {10, 11}, {11, 10}, {12, 2}, {13, 3} }; - -static int8_t vsc3316_fsm2_rx[8][2] = { {0, 15}, {1, 14}, {6, 7}, {7, 6}, - {8, 9}, {9, 8}, {14, 1}, {15, 0} }; - -int checkboard(void) -{ - char buf[64]; - u8 sw; - struct cpu_type *cpu = gd->arch.cpu; - unsigned int i; - - printf("Board: %sQDS, ", cpu->name); - printf("Sys ID: 0x%02x, Sys Ver: 0x%02x, ", - QIXIS_READ(id), QIXIS_READ(arch)); - - sw = QIXIS_READ(brdcfg[0]); - sw = (sw & QIXIS_LBMAP_MASK) >> QIXIS_LBMAP_SHIFT; - - if (sw < 0x8) - printf("vBank: %d\n", sw); - else if (sw == 0x8) - puts("Promjet\n"); - else if (sw == 0x9) - puts("NAND\n"); - else - printf("invalid setting of SW%u\n", QIXIS_LBMAP_SWITCH); - - printf("FPGA: v%d (%s), build %d", - (int)QIXIS_READ(scver), qixis_read_tag(buf), - (int)qixis_read_minor()); - /* the timestamp string contains "\n" at the end */ - printf(" on %s", qixis_read_time(buf)); - - /* - * Display the actual SERDES reference clocks as configured by the - * dip switches on the board. Note that the SWx registers could - * technically be set to force the reference clocks to match the - * values that the SERDES expects (or vice versa). For now, however, - * we just display both values and hope the user notices when they - * don't match. - */ - puts("SERDES Reference Clocks: "); - sw = QIXIS_READ(brdcfg[2]); - for (i = 0; i < MAX_SERDES; i++) { - static const char * const freq[] = { - "100", "125", "156.25", "161.1328125"}; - unsigned int clock = (sw >> (6 - 2 * i)) & 3; - - printf("SERDES%u=%sMHz ", i+1, freq[clock]); - } - puts("\n"); - - return 0; -} - -int select_i2c_ch_pca9547(u8 ch, int bus_num) -{ - int ret; - -#ifdef CONFIG_DM_I2C - struct udevice *dev; - - ret = i2c_get_chip_for_busnum(bus_num, I2C_MUX_PCA_ADDR_PRI, - 1, &dev); - if (ret) { - printf("%s: Cannot find udev for a bus %d\n", __func__, - bus_num); - return ret; - } - - ret = dm_i2c_write(dev, 0, &ch, 1); -#else - ret = i2c_write(I2C_MUX_PCA_ADDR_PRI, 0, 1, &ch, 1); -#endif - if (ret) { - puts("PCA: failed to select proper channel\n"); - return ret; - } - - return 0; -} - -/* - * read_voltage from sensor on I2C bus - * We use average of 4 readings, waiting for 532us befor another reading - */ -#define NUM_READINGS 4 /* prefer to be power of 2 for efficiency */ -#define WAIT_FOR_ADC 532 /* wait for 532 microseconds for ADC */ - -static inline int read_voltage(void) -{ - int i, ret, voltage_read = 0; - u16 vol_mon; -#ifdef CONFIG_DM_I2C - struct udevice *dev; - int bus_num = 0; -#endif - - for (i = 0; i < NUM_READINGS; i++) { -#ifdef CONFIG_DM_I2C - ret = i2c_get_chip_for_busnum(bus_num, I2C_VOL_MONITOR_ADDR, - 1, &dev); - if (ret) { - printf("%s: Cannot find udev for a bus %d\n", __func__, - bus_num); - return ret; - } - - ret = dm_i2c_read(dev, - I2C_VOL_MONITOR_BUS_V_OFFSET, - (void *)&vol_mon, 2); -#else - ret = i2c_read(I2C_VOL_MONITOR_ADDR, - I2C_VOL_MONITOR_BUS_V_OFFSET, 1, (void *)&vol_mon, 2); -#endif - if (ret) { - printf("VID: failed to read core voltage\n"); - return ret; - } - if (vol_mon & I2C_VOL_MONITOR_BUS_V_OVF) { - printf("VID: Core voltage sensor error\n"); - return -1; - } - debug("VID: bus voltage reads 0x%04x\n", vol_mon); - /* LSB = 4mv */ - voltage_read += (vol_mon >> I2C_VOL_MONITOR_BUS_V_SHIFT) * 4; - udelay(WAIT_FOR_ADC); - } - /* calculate the average */ - voltage_read /= NUM_READINGS; - - return voltage_read; -} - -/* - * We need to calculate how long before the voltage starts to drop or increase - * It returns with the loop count. Each loop takes several readings (532us) - */ -static inline int wait_for_voltage_change(int vdd_last) -{ - int timeout, vdd_current; - - vdd_current = read_voltage(); - /* wait until voltage starts to drop */ - for (timeout = 0; abs(vdd_last - vdd_current) <= 4 && - timeout < 100; timeout++) { - vdd_current = read_voltage(); - } - if (timeout >= 100) { - printf("VID: Voltage adjustment timeout\n"); - return -1; - } - return timeout; -} - -/* - * argument 'wait' is the time we know the voltage difference can be measured - * this function keeps reading the voltage until it is stable - */ -static inline int wait_for_voltage_stable(int wait) -{ - int timeout, vdd_current, vdd_last; - - vdd_last = read_voltage(); - udelay(wait * NUM_READINGS * WAIT_FOR_ADC); - /* wait until voltage is stable */ - vdd_current = read_voltage(); - for (timeout = 0; abs(vdd_last - vdd_current) >= 4 && - timeout < 100; timeout++) { - vdd_last = vdd_current; - udelay(wait * NUM_READINGS * WAIT_FOR_ADC); - vdd_current = read_voltage(); - } - if (timeout >= 100) { - printf("VID: Voltage adjustment timeout\n"); - return -1; - } - - return vdd_current; -} - -static inline int set_voltage(u8 vid) -{ - int wait, vdd_last; - - vdd_last = read_voltage(); - QIXIS_WRITE(brdcfg[6], vid); - wait = wait_for_voltage_change(vdd_last); - if (wait < 0) - return -1; - debug("VID: Waited %d us\n", wait * NUM_READINGS * WAIT_FOR_ADC); - wait = wait ? wait : 1; - - vdd_last = wait_for_voltage_stable(wait); - if (vdd_last < 0) - return -1; - debug("VID: Current voltage is %d mV\n", vdd_last); - - return vdd_last; -} - - -static int adjust_vdd(ulong vdd_override) -{ - int re_enable = disable_interrupts(); - ccsr_gur_t __iomem *gur = - (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); - u32 fusesr; - u8 vid, vid_current; - int vdd_target, vdd_current, vdd_last; - int ret; - unsigned long vdd_string_override; - char *vdd_string; - static const uint16_t vdd[32] = { - 0, /* unused */ - 9875, /* 0.9875V */ - 9750, - 9625, - 9500, - 9375, - 9250, - 9125, - 9000, - 8875, - 8750, - 8625, - 8500, - 8375, - 8250, - 8125, - 10000, /* 1.0000V */ - 10125, - 10250, - 10375, - 10500, - 10625, - 10750, - 10875, - 11000, - 0, /* reserved */ - }; - struct vdd_drive { - u8 vid; - unsigned voltage; - }; - - ret = select_i2c_ch_pca9547(I2C_MUX_CH_VOL_MONITOR, 0); - if (ret) { - debug("VID: I2c failed to switch channel\n"); - ret = -1; - goto exit; - } - - /* get the voltage ID from fuse status register */ - fusesr = in_be32(&gur->dcfg_fusesr); - vid = (fusesr >> FSL_CORENET_DCFG_FUSESR_VID_SHIFT) & - FSL_CORENET_DCFG_FUSESR_VID_MASK; - if (vid == FSL_CORENET_DCFG_FUSESR_VID_MASK) { - vid = (fusesr >> FSL_CORENET_DCFG_FUSESR_ALTVID_SHIFT) & - FSL_CORENET_DCFG_FUSESR_ALTVID_MASK; - } - vdd_target = vdd[vid]; - - /* check override variable for overriding VDD */ - vdd_string = env_get("t4240qds_vdd_mv"); - if (vdd_override == 0 && vdd_string && - !strict_strtoul(vdd_string, 10, &vdd_string_override)) - vdd_override = vdd_string_override; - if (vdd_override >= 819 && vdd_override <= 1212) { - vdd_target = vdd_override * 10; /* convert to 1/10 mV */ - debug("VDD override is %lu\n", vdd_override); - } else if (vdd_override != 0) { - printf("Invalid value.\n"); - } - - if (vdd_target == 0) { - debug("VID: VID not used\n"); - ret = 0; - goto exit; - } else { - /* round up and divice by 10 to get a value in mV */ - vdd_target = DIV_ROUND_UP(vdd_target, 10); - debug("VID: vid = %d mV\n", vdd_target); - } - - /* - * Check current board VID setting - * Voltage regulator support output to 6.250mv step - * The highes voltage allowed for this board is (vid=0x40) 1.21250V - * the lowest is (vid=0x7f) 0.81875V - */ - vid_current = QIXIS_READ(brdcfg[6]); - vdd_current = 121250 - (vid_current - 0x40) * 625; - debug("VID: Current vid setting is (0x%x) %d mV\n", - vid_current, vdd_current/100); - - /* - * Read voltage monitor to check real voltage. - * Voltage monitor LSB is 4mv. - */ - vdd_last = read_voltage(); - if (vdd_last < 0) { - printf("VID: Could not read voltage sensor abort VID adjustment\n"); - ret = -1; - goto exit; - } - debug("VID: Core voltage is at %d mV\n", vdd_last); - /* - * Adjust voltage to at or 8mV above target. - * Each step of adjustment is 6.25mV. - * Stepping down too fast may cause over current. - */ - while (vdd_last > 0 && vid_current < 0x80 && - vdd_last > (vdd_target + 8)) { - vid_current++; - vdd_last = set_voltage(vid_current); - } - /* - * Check if we need to step up - * This happens when board voltage switch was set too low - */ - while (vdd_last > 0 && vid_current >= 0x40 && - vdd_last < vdd_target + 2) { - vid_current--; - vdd_last = set_voltage(vid_current); - } - if (vdd_last > 0) - printf("VID: Core voltage %d mV\n", vdd_last); - else - ret = -1; - -exit: - if (re_enable) - enable_interrupts(); - return ret; -} - -/* Configure Crossbar switches for Front-Side SerDes Ports */ -int config_frontside_crossbar_vsc3316(void) -{ - ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); - u32 srds_prtcl_s1, srds_prtcl_s2; - int ret; - - ret = select_i2c_ch_pca9547(I2C_MUX_CH_VSC3316_FS, 0); - if (ret) - return ret; - - srds_prtcl_s1 = in_be32(&gur->rcwsr[4]) & - FSL_CORENET2_RCWSR4_SRDS1_PRTCL; - srds_prtcl_s1 >>= FSL_CORENET2_RCWSR4_SRDS1_PRTCL_SHIFT; - switch (srds_prtcl_s1) { - case 37: - case 38: - /* swap first lane and third lane on slot1 */ - vsc3316_fsm1_tx[0][1] = 14; - vsc3316_fsm1_tx[6][1] = 0; - vsc3316_fsm1_rx[1][1] = 2; - vsc3316_fsm1_rx[6][1] = 13; - case 39: - case 40: - case 45: - case 46: - case 47: - case 48: - /* swap first lane and third lane on slot2 */ - vsc3316_fsm1_tx[2][1] = 8; - vsc3316_fsm1_tx[4][1] = 6; - vsc3316_fsm1_rx[2][1] = 10; - vsc3316_fsm1_rx[5][1] = 5; - default: - ret = vsc3316_config(VSC3316_FSM_TX_ADDR, vsc3316_fsm1_tx, 8); - if (ret) - return ret; - ret = vsc3316_config(VSC3316_FSM_RX_ADDR, vsc3316_fsm1_rx, 8); - if (ret) - return ret; - break; - } - - srds_prtcl_s2 = in_be32(&gur->rcwsr[4]) & - FSL_CORENET2_RCWSR4_SRDS2_PRTCL; - srds_prtcl_s2 >>= FSL_CORENET2_RCWSR4_SRDS2_PRTCL_SHIFT; - switch (srds_prtcl_s2) { - case 37: - case 38: - /* swap first lane and third lane on slot3 */ - vsc3316_fsm2_tx[2][1] = 11; - vsc3316_fsm2_tx[5][1] = 4; - vsc3316_fsm2_rx[2][1] = 9; - vsc3316_fsm2_rx[4][1] = 7; - case 39: - case 40: - case 45: - case 46: - case 47: - case 48: - case 49: - case 50: - case 51: - case 52: - case 53: - case 54: - /* swap first lane and third lane on slot4 */ - vsc3316_fsm2_tx[6][1] = 3; - vsc3316_fsm2_tx[1][1] = 12; - vsc3316_fsm2_rx[0][1] = 1; - vsc3316_fsm2_rx[6][1] = 15; - default: - ret = vsc3316_config(VSC3316_FSM_TX_ADDR, vsc3316_fsm2_tx, 8); - if (ret) - return ret; - ret = vsc3316_config(VSC3316_FSM_RX_ADDR, vsc3316_fsm2_rx, 8); - if (ret) - return ret; - break; - } - - return 0; -} - -int config_backside_crossbar_mux(void) -{ - ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); - u32 srds_prtcl_s3, srds_prtcl_s4; - u8 brdcfg; - - srds_prtcl_s3 = in_be32(&gur->rcwsr[4]) & - FSL_CORENET2_RCWSR4_SRDS3_PRTCL; - srds_prtcl_s3 >>= FSL_CORENET2_RCWSR4_SRDS3_PRTCL_SHIFT; - switch (srds_prtcl_s3) { - case 0: - /* SerDes3 is not enabled */ - break; - case 1: - case 2: - case 9: - case 10: - /* SD3(0:7) => SLOT5(0:7) */ - brdcfg = QIXIS_READ(brdcfg[12]); - brdcfg &= ~BRDCFG12_SD3MX_MASK; - brdcfg |= BRDCFG12_SD3MX_SLOT5; - QIXIS_WRITE(brdcfg[12], brdcfg); - break; - case 3: - case 4: - case 5: - case 6: - case 7: - case 8: - case 11: - case 12: - case 13: - case 14: - case 15: - case 16: - case 17: - case 18: - case 19: - case 20: - /* SD3(4:7) => SLOT6(0:3) */ - brdcfg = QIXIS_READ(brdcfg[12]); - brdcfg &= ~BRDCFG12_SD3MX_MASK; - brdcfg |= BRDCFG12_SD3MX_SLOT6; - QIXIS_WRITE(brdcfg[12], brdcfg); - break; - default: - printf("WARNING: unsupported for SerDes3 Protocol %d\n", - srds_prtcl_s3); - return -1; - } - - srds_prtcl_s4 = in_be32(&gur->rcwsr[4]) & - FSL_CORENET2_RCWSR4_SRDS4_PRTCL; - srds_prtcl_s4 >>= FSL_CORENET2_RCWSR4_SRDS4_PRTCL_SHIFT; - switch (srds_prtcl_s4) { - case 0: - /* SerDes4 is not enabled */ - break; - case 1: - case 2: - /* 10b, SD4(0:7) => SLOT7(0:7) */ - brdcfg = QIXIS_READ(brdcfg[12]); - brdcfg &= ~BRDCFG12_SD4MX_MASK; - brdcfg |= BRDCFG12_SD4MX_SLOT7; - QIXIS_WRITE(brdcfg[12], brdcfg); - break; - case 3: - case 4: - case 5: - case 6: - case 7: - case 8: - /* x1b, SD4(4:7) => SLOT8(0:3) */ - brdcfg = QIXIS_READ(brdcfg[12]); - brdcfg &= ~BRDCFG12_SD4MX_MASK; - brdcfg |= BRDCFG12_SD4MX_SLOT8; - QIXIS_WRITE(brdcfg[12], brdcfg); - break; - case 9: - case 10: - case 11: - case 12: - case 13: - case 14: - case 15: - case 16: - case 18: - /* 00b, SD4(4:5) => AURORA, SD4(6:7) => SATA */ - brdcfg = QIXIS_READ(brdcfg[12]); - brdcfg &= ~BRDCFG12_SD4MX_MASK; - brdcfg |= BRDCFG12_SD4MX_AURO_SATA; - QIXIS_WRITE(brdcfg[12], brdcfg); - break; - default: - printf("WARNING: unsupported for SerDes4 Protocol %d\n", - srds_prtcl_s4); - return -1; - } - - return 0; -} - -int board_early_init_r(void) -{ - const unsigned int flashbase = CONFIG_SYS_FLASH_BASE; - int flash_esel = find_tlb_idx((void *)flashbase, 1); - - /* - * Remap Boot flash + PROMJET region to caching-inhibited - * so that flash can be erased properly. - */ - - /* Flush d-cache and invalidate i-cache of any FLASH data */ - flush_dcache(); - invalidate_icache(); - - if (flash_esel == -1) { - /* very unlikely unless something is messed up */ - puts("Error: Could not find TLB for FLASH BASE\n"); - flash_esel = 2; /* give our best effort to continue */ - } else { - /* invalidate existing TLB entry for flash + promjet */ - disable_tlb(flash_esel); - } - - set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS, - MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, - 0, flash_esel, BOOKE_PAGESZ_256M, 1); - - /* Disable remote I2C connection to qixis fpga */ - QIXIS_WRITE(brdcfg[5], QIXIS_READ(brdcfg[5]) & ~BRDCFG5_IRE); - - /* - * Adjust core voltage according to voltage ID - * This function changes I2C mux to channel 2. - */ - if (adjust_vdd(0)) - printf("Warning: Adjusting core voltage failed.\n"); - - /* Configure board SERDES ports crossbar */ - config_frontside_crossbar_vsc3316(); - config_backside_crossbar_mux(); - select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT, 0); - - return 0; -} - -unsigned long get_board_sys_clk(void) -{ - u8 sysclk_conf = QIXIS_READ(brdcfg[1]); -#ifdef CONFIG_FSL_QIXIS_CLOCK_MEASUREMENT - /* use accurate clock measurement */ - int freq = QIXIS_READ(clk_freq[0]) << 8 | QIXIS_READ(clk_freq[1]); - int base = QIXIS_READ(clk_base[0]) << 8 | QIXIS_READ(clk_base[1]); - u32 val; - - val = freq * base; - if (val) { - debug("SYS Clock measurement is: %d\n", val); - return val; - } else { - printf("Warning: SYS clock measurement is invalid, using value from brdcfg1.\n"); - } -#endif - - switch (sysclk_conf & 0x0F) { - case QIXIS_SYSCLK_83: - return 83333333; - case QIXIS_SYSCLK_100: - return 100000000; - case QIXIS_SYSCLK_125: - return 125000000; - case QIXIS_SYSCLK_133: - return 133333333; - case QIXIS_SYSCLK_150: - return 150000000; - case QIXIS_SYSCLK_160: - return 160000000; - case QIXIS_SYSCLK_166: - return 166666666; - } - return 66666666; -} - -unsigned long get_board_ddr_clk(void) -{ - u8 ddrclk_conf = QIXIS_READ(brdcfg[1]); -#ifdef CONFIG_FSL_QIXIS_CLOCK_MEASUREMENT - /* use accurate clock measurement */ - int freq = QIXIS_READ(clk_freq[2]) << 8 | QIXIS_READ(clk_freq[3]); - int base = QIXIS_READ(clk_base[0]) << 8 | QIXIS_READ(clk_base[1]); - u32 val; - - val = freq * base; - if (val) { - debug("DDR Clock measurement is: %d\n", val); - return val; - } else { - printf("Warning: DDR clock measurement is invalid, using value from brdcfg1.\n"); - } -#endif - - switch ((ddrclk_conf & 0x30) >> 4) { - case QIXIS_DDRCLK_100: - return 100000000; - case QIXIS_DDRCLK_125: - return 125000000; - case QIXIS_DDRCLK_133: - return 133333333; - } - return 66666666; -} - -int misc_init_r(void) -{ - u8 sw; - void *srds_base = (void *)CONFIG_SYS_FSL_CORENET_SERDES_ADDR; - serdes_corenet_t *srds_regs; - u32 actual[MAX_SERDES]; - u32 pllcr0, expected; - unsigned int i; - - sw = QIXIS_READ(brdcfg[2]); - for (i = 0; i < MAX_SERDES; i++) { - unsigned int clock = (sw >> (6 - 2 * i)) & 3; - switch (clock) { - case 0: - actual[i] = SRDS_PLLCR0_RFCK_SEL_100; - break; - case 1: - actual[i] = SRDS_PLLCR0_RFCK_SEL_125; - break; - case 2: - actual[i] = SRDS_PLLCR0_RFCK_SEL_156_25; - break; - case 3: - actual[i] = SRDS_PLLCR0_RFCK_SEL_161_13; - break; - } - } - - for (i = 0; i < MAX_SERDES; i++) { - srds_regs = srds_base + i * 0x1000; - pllcr0 = srds_regs->bank[0].pllcr0; - expected = pllcr0 & SRDS_PLLCR0_RFCK_SEL_MASK; - if (expected != actual[i]) { - printf("Warning: SERDES%u expects reference clock %sMHz, but actual is %sMHz\n", - i + 1, serdes_clock_to_string(expected), - serdes_clock_to_string(actual[i])); - } - } - - return 0; -} - -int ft_board_setup(void *blob, bd_t *bd) -{ - phys_addr_t base; - phys_size_t size; - - ft_cpu_setup(blob, bd); - - base = env_get_bootm_low(); - size = env_get_bootm_size(); - - fdt_fixup_memory(blob, (u64)base, (u64)size); - -#ifdef CONFIG_PCI - pci_of_setup(blob, bd); -#endif - - fdt_fixup_liodn(blob); - fsl_fdt_fixup_dr_usb(blob, bd); - -#ifdef CONFIG_SYS_DPAA_FMAN -#ifndef CONFIG_DM_ETH - fdt_fixup_fman_ethernet(blob); -#endif - fdt_fixup_board_enet(blob); -#endif - - return 0; -} - -/* - * This function is called by bdinfo to print detail board information. - * As an exmaple for future board, we organize the messages into - * several sections. If applicable, the message is in the format of - * <name> = <value> - * It should aligned with normal output of bdinfo command. - * - * Voltage: Core, DDR and another configurable voltages - * Clock : Critical clocks which are not printed already - * RCW : RCW source if not printed already - * Misc : Other important information not in above catagories - */ -void board_detail(void) -{ - int i; - u8 brdcfg[16], dutcfg[16], rst_ctl; - int vdd, rcwsrc; - static const char * const clk[] = {"66.67", "100", "125", "133.33"}; - - for (i = 0; i < 16; i++) { - brdcfg[i] = qixis_read(offsetof(struct qixis, brdcfg[0]) + i); - dutcfg[i] = qixis_read(offsetof(struct qixis, dutcfg[0]) + i); - } - - /* Voltage secion */ - if (!select_i2c_ch_pca9547(I2C_MUX_CH_VOL_MONITOR, 0)) { - vdd = read_voltage(); - if (vdd > 0) - printf("Core voltage= %d mV\n", vdd); - select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT, 0); - } - - printf("XVDD = 1.%d V\n", ((brdcfg[8] & 0xf) - 4) * 5 + 25); - - /* clock section */ - printf("SYSCLK = %s MHz\nDDRCLK = %s MHz\n", - clk[(brdcfg[11] >> 2) & 0x3], clk[brdcfg[11] & 3]); - - /* RCW section */ - rcwsrc = (dutcfg[0] << 1) + (dutcfg[1] & 1); - puts("RCW source = "); - switch (rcwsrc) { - case 0x017: - case 0x01f: - puts("8-bit NOR\n"); - break; - case 0x027: - case 0x02F: - puts("16-bit NOR\n"); - break; - case 0x040: - puts("SDHC/eMMC\n"); - break; - case 0x044: - puts("SPI 16-bit addressing\n"); - break; - case 0x045: - puts("SPI 24-bit addressing\n"); - break; - case 0x048: - puts("I2C normal addressing\n"); - break; - case 0x049: - puts("I2C extended addressing\n"); - break; - case 0x108: - case 0x109: - case 0x10a: - case 0x10b: - puts("8-bit NAND, 2KB\n"); - break; - default: - if ((rcwsrc >= 0x080) && (rcwsrc <= 0x09f)) - puts("Hard-coded RCW\n"); - else if ((rcwsrc >= 0x110) && (rcwsrc <= 0x11f)) - puts("8-bit NAND, 4KB\n"); - else - puts("unknown\n"); - break; - } - - /* Misc section */ - rst_ctl = QIXIS_READ(rst_ctl); - puts("HRESET_REQ = "); - switch (rst_ctl & 0x30) { - case 0x00: - puts("Ignored\n"); - break; - case 0x10: - puts("Assert HRESET\n"); - break; - case 0x30: - puts("Reset system\n"); - break; - default: - puts("N/A\n"); - break; - } -} - -/* - * Reverse engineering switch settings. - * Some bits cannot be figured out. They will be displayed as - * underscore in binary format. mask[] has those bits. - * Some bits are calculated differently than the actual switches - * if booting with overriding by FPGA. - */ -void qixis_dump_switch(void) -{ - int i; - u8 sw[9]; - - /* - * Any bit with 1 means that bit cannot be reverse engineered. - * It will be displayed as _ in binary format. - */ - static const u8 mask[] = {0, 0, 0, 0, 0, 0x1, 0xcf, 0x3f, 0x1f}; - char buf[10]; - u8 brdcfg[16], dutcfg[16]; - - for (i = 0; i < 16; i++) { - brdcfg[i] = qixis_read(offsetof(struct qixis, brdcfg[0]) + i); - dutcfg[i] = qixis_read(offsetof(struct qixis, dutcfg[0]) + i); - } - - sw[0] = dutcfg[0]; - sw[1] = (dutcfg[1] << 0x07) | - ((dutcfg[12] & 0xC0) >> 1) | - ((dutcfg[11] & 0xE0) >> 3) | - ((dutcfg[6] & 0x80) >> 6) | - ((dutcfg[1] & 0x80) >> 7); - sw[2] = ((brdcfg[1] & 0x0f) << 4) | - ((brdcfg[1] & 0x30) >> 2) | - ((brdcfg[1] & 0x40) >> 5) | - ((brdcfg[1] & 0x80) >> 7); - sw[3] = brdcfg[2]; - sw[4] = ((dutcfg[2] & 0x01) << 7) | - ((dutcfg[2] & 0x06) << 4) | - ((~QIXIS_READ(present)) & 0x10) | - ((brdcfg[3] & 0x80) >> 4) | - ((brdcfg[3] & 0x01) << 2) | - ((brdcfg[6] == 0x62) ? 3 : - ((brdcfg[6] == 0x5a) ? 2 : - ((brdcfg[6] == 0x5e) ? 1 : 0))); - sw[5] = ((brdcfg[0] & 0x0f) << 4) | - ((QIXIS_READ(rst_ctl) & 0x30) >> 2) | - ((brdcfg[0] & 0x40) >> 5); - sw[6] = (brdcfg[11] & 0x20) | - ((brdcfg[5] & 0x02) << 3); - sw[7] = (((~QIXIS_READ(rst_ctl)) & 0x40) << 1) | - ((brdcfg[5] & 0x10) << 2); - sw[8] = ((brdcfg[12] & 0x08) << 4) | - ((brdcfg[12] & 0x03) << 5); - - puts("DIP switch (reverse-engineering)\n"); - for (i = 0; i < 9; i++) { - printf("SW%d = 0b%s (0x%02x)\n", - i + 1, byte_to_binary_mask(sw[i], mask[i], buf), sw[i]); - } -} - -static int do_vdd_adjust(struct cmd_tbl *cmdtp, - int flag, int argc, - char *const argv[]) -{ - ulong override; - - if (argc < 2) - return CMD_RET_USAGE; - if (!strict_strtoul(argv[1], 10, &override)) - adjust_vdd(override); /* the value is checked by callee */ - else - return CMD_RET_USAGE; - - return 0; -} - -U_BOOT_CMD( - vdd_override, 2, 0, do_vdd_adjust, - "Override VDD", - "- override with the voltage specified in mV, eg. 1050" -); |