uboot/board/freescale/t102xrdb/t102xrdb.c
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   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright 2014 Freescale Semiconductor, Inc.
   4 * Copyright 2020 NXP
   5 */
   6
   7#include <common.h>
   8#include <command.h>
   9#include <env.h>
  10#include <fdt_support.h>
  11#include <i2c.h>
  12#include <image.h>
  13#include <init.h>
  14#include <netdev.h>
  15#include <asm/global_data.h>
  16#include <linux/compiler.h>
  17#include <asm/mmu.h>
  18#include <asm/processor.h>
  19#include <asm/immap_85xx.h>
  20#include <asm/fsl_law.h>
  21#include <asm/fsl_serdes.h>
  22#include <asm/fsl_liodn.h>
  23#include <fm_eth.h>
  24#include "t102xrdb.h"
  25#ifdef CONFIG_TARGET_T1024RDB
  26#include "cpld.h"
  27#elif defined(CONFIG_TARGET_T1023RDB)
  28#include <i2c.h>
  29#include <mmc.h>
  30#endif
  31#include "../common/sleep.h"
  32
  33DECLARE_GLOBAL_DATA_PTR;
  34
  35#ifdef CONFIG_TARGET_T1023RDB
  36enum {
  37        GPIO1_SD_SEL    = 0x00020000, /* GPIO1_14, 0: eMMC, 1:SD/MMC */
  38        GPIO1_EMMC_SEL,
  39        GPIO3_GET_VERSION,             /* GPIO3_4/5, 00:RevB, 01: RevC */
  40        GPIO3_BRD_VER_MASK = 0x0c000000,
  41        GPIO3_OFFSET = 0x2000,
  42        I2C_GET_BANK,
  43        I2C_SET_BANK0,
  44        I2C_SET_BANK4,
  45};
  46#endif
  47
  48int checkboard(void)
  49{
  50        struct cpu_type *cpu = gd->arch.cpu;
  51        static const char *freq[3] = {"100.00MHZ", "125.00MHz", "156.25MHZ"};
  52        ccsr_gur_t __iomem *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  53        u32 srds_s1;
  54
  55        srds_s1 = in_be32(&gur->rcwsr[4]) & FSL_CORENET2_RCWSR4_SRDS1_PRTCL;
  56        srds_s1 >>= FSL_CORENET2_RCWSR4_SRDS1_PRTCL_SHIFT;
  57
  58        printf("Board: %sRDB, ", cpu->name);
  59#if defined(CONFIG_TARGET_T1024RDB)
  60        printf("Board rev: 0x%02x CPLD ver: 0x%02x, ",
  61               CPLD_READ(hw_ver), CPLD_READ(sw_ver));
  62#elif defined(CONFIG_TARGET_T1023RDB)
  63        printf("Rev%c, ", t1023rdb_ctrl(GPIO3_GET_VERSION) + 'B');
  64#endif
  65        printf("boot from ");
  66
  67#ifdef CONFIG_SDCARD
  68        puts("SD/MMC\n");
  69#elif CONFIG_SPIFLASH
  70        puts("SPI\n");
  71#elif defined(CONFIG_TARGET_T1024RDB)
  72        u8 reg;
  73
  74        reg = CPLD_READ(flash_csr);
  75
  76        if (reg & CPLD_BOOT_SEL) {
  77                puts("NAND\n");
  78        } else {
  79                reg = ((reg & CPLD_LBMAP_MASK) >> CPLD_LBMAP_SHIFT);
  80                printf("NOR vBank%d\n", reg);
  81        }
  82#elif defined(CONFIG_TARGET_T1023RDB)
  83#ifdef CONFIG_MTD_RAW_NAND
  84        puts("NAND\n");
  85#else
  86        printf("NOR vBank%d\n", t1023rdb_ctrl(I2C_GET_BANK));
  87#endif
  88#endif
  89
  90        puts("SERDES Reference Clocks:\n");
  91        if (srds_s1 == 0x95)
  92                printf("SD1_CLK1=%s, SD1_CLK2=%s\n", freq[2], freq[0]);
  93        else
  94                printf("SD1_CLK1=%s, SD1_CLK2=%s\n", freq[0], freq[1]);
  95
  96        return 0;
  97}
  98
  99#ifdef CONFIG_TARGET_T1024RDB
 100static void board_mux_lane(void)
 101{
 102        ccsr_gur_t __iomem *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 103        u32 srds_prtcl_s1;
 104        u8 reg = CPLD_READ(misc_ctl_status);
 105
 106        srds_prtcl_s1 = in_be32(&gur->rcwsr[4]) &
 107                                FSL_CORENET2_RCWSR4_SRDS1_PRTCL;
 108        srds_prtcl_s1 >>= FSL_CORENET2_RCWSR4_SRDS1_PRTCL_SHIFT;
 109
 110        if (srds_prtcl_s1 == 0x95) {
 111                /* Route Lane B to PCIE */
 112                CPLD_WRITE(misc_ctl_status, reg & ~CPLD_PCIE_SGMII_MUX);
 113        } else {
 114                /* Route Lane B to SGMII */
 115                CPLD_WRITE(misc_ctl_status, reg | CPLD_PCIE_SGMII_MUX);
 116        }
 117        CPLD_WRITE(boot_override, CPLD_OVERRIDE_MUX_EN);
 118}
 119#endif
 120
 121int board_early_init_f(void)
 122{
 123#if defined(CONFIG_DEEP_SLEEP)
 124        if (is_warm_boot())
 125                fsl_dp_disable_console();
 126#endif
 127
 128        return 0;
 129}
 130
 131int board_early_init_r(void)
 132{
 133#ifdef CONFIG_SYS_FLASH_BASE
 134        const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
 135        int flash_esel = find_tlb_idx((void *)flashbase, 1);
 136        /*
 137         * Remap Boot flash region to caching-inhibited
 138         * so that flash can be erased properly.
 139         */
 140
 141        /* Flush d-cache and invalidate i-cache of any FLASH data */
 142        flush_dcache();
 143        invalidate_icache();
 144        if (flash_esel == -1) {
 145                /* very unlikely unless something is messed up */
 146                puts("Error: Could not find TLB for FLASH BASE\n");
 147                flash_esel = 2; /* give our best effort to continue */
 148        } else {
 149                /* invalidate existing TLB entry for flash + promjet */
 150                disable_tlb(flash_esel);
 151        }
 152
 153        set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS,
 154                MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 155                0, flash_esel, BOOKE_PAGESZ_256M, 1);
 156#endif
 157
 158#ifdef CONFIG_TARGET_T1024RDB
 159        board_mux_lane();
 160#endif
 161
 162        return 0;
 163}
 164
 165unsigned long get_board_sys_clk(void)
 166{
 167        return CONFIG_SYS_CLK_FREQ;
 168}
 169
 170unsigned long get_board_ddr_clk(void)
 171{
 172        return CONFIG_DDR_CLK_FREQ;
 173}
 174
 175#ifdef CONFIG_TARGET_T1024RDB
 176void board_reset(void)
 177{
 178        CPLD_WRITE(reset_ctl1, CPLD_LBMAP_RESET);
 179}
 180#endif
 181
 182int misc_init_r(void)
 183{
 184        return 0;
 185}
 186
 187int ft_board_setup(void *blob, struct bd_info *bd)
 188{
 189        phys_addr_t base;
 190        phys_size_t size;
 191
 192        ft_cpu_setup(blob, bd);
 193
 194        base = env_get_bootm_low();
 195        size = env_get_bootm_size();
 196
 197        fdt_fixup_memory(blob, (u64)base, (u64)size);
 198
 199#ifdef CONFIG_PCI
 200        pci_of_setup(blob, bd);
 201#endif
 202
 203        fdt_fixup_liodn(blob);
 204        fsl_fdt_fixup_dr_usb(blob, bd);
 205
 206#ifdef CONFIG_SYS_DPAA_FMAN
 207#ifndef CONFIG_DM_ETH
 208        fdt_fixup_fman_ethernet(blob);
 209#endif
 210        fdt_fixup_board_enet(blob);
 211#endif
 212
 213#ifdef CONFIG_TARGET_T1023RDB
 214        if (t1023rdb_ctrl(GPIO3_GET_VERSION) > 0)
 215                fdt_enable_nor(blob);
 216#endif
 217
 218        return 0;
 219}
 220
 221#ifdef CONFIG_TARGET_T1023RDB
 222/* Enable NOR flash for RevC */
 223static void fdt_enable_nor(void *blob)
 224{
 225        int nodeoff = fdt_node_offset_by_compatible(blob, 0, "cfi-flash");
 226
 227        if (nodeoff >= 0)
 228                fdt_status_okay(blob, nodeoff);
 229        else
 230                printf("WARNING unable to set status for NOR\n");
 231}
 232
 233int board_mmc_getcd(struct mmc *mmc)
 234{
 235        ccsr_gpio_t __iomem *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR);
 236        u32 val = in_be32(&pgpio->gpdat);
 237
 238        /* GPIO1_14, 0: eMMC, 1: SD/MMC */
 239        val &= GPIO1_SD_SEL;
 240
 241        return val ? -1 : 1;
 242}
 243
 244int board_mmc_getwp(struct mmc *mmc)
 245{
 246        ccsr_gpio_t __iomem *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR);
 247        u32 val = in_be32(&pgpio->gpdat);
 248
 249        val &= GPIO1_SD_SEL;
 250
 251        return val ? -1 : 0;
 252}
 253
 254static u32 t1023rdb_ctrl(u32 ctrl_type)
 255{
 256        ccsr_gpio_t __iomem *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR);
 257        ccsr_gur_t __iomem  *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 258        u32 val;
 259        u8 tmp;
 260        int bus_num = I2C_PCA6408_BUS_NUM;
 261
 262#if CONFIG_IS_ENABLED(DM_I2C)
 263        struct udevice *dev;
 264        int ret;
 265
 266        ret = i2c_get_chip_for_busnum(bus_num, I2C_PCA6408_ADDR,
 267                                      1, &dev);
 268        if (ret) {
 269                printf("%s: Cannot find udev for a bus %d\n", __func__,
 270                       bus_num);
 271                return ret;
 272        }
 273        switch (ctrl_type) {
 274        case GPIO1_SD_SEL:
 275                val = in_be32(&pgpio->gpdat);
 276                val |= GPIO1_SD_SEL;
 277                out_be32(&pgpio->gpdat, val);
 278                setbits_be32(&pgpio->gpdir, GPIO1_SD_SEL);
 279                break;
 280        case GPIO1_EMMC_SEL:
 281                val = in_be32(&pgpio->gpdat);
 282                val &= ~GPIO1_SD_SEL;
 283                out_be32(&pgpio->gpdat, val);
 284                setbits_be32(&pgpio->gpdir, GPIO1_SD_SEL);
 285                break;
 286        case GPIO3_GET_VERSION:
 287                pgpio = (ccsr_gpio_t *)(CONFIG_SYS_MPC85xx_GPIO_ADDR
 288                         + GPIO3_OFFSET);
 289                val = in_be32(&pgpio->gpdat);
 290                val = ((val & GPIO3_BRD_VER_MASK) >> 26) & 0x3;
 291                if (val == 0x3) /* GPIO3_4/5 not used on RevB */
 292                        val = 0;
 293                return val;
 294        case I2C_GET_BANK:
 295                dm_i2c_read(dev, 0, &tmp, 1);
 296                tmp &= 0x7;
 297                tmp = ((tmp & 1) << 2) | (tmp & 2) | ((tmp & 4) >> 2);
 298                return tmp;
 299        case I2C_SET_BANK0:
 300                tmp = 0x0;
 301                dm_i2c_write(dev, 1, &tmp, 1);
 302                tmp = 0xf8;
 303                dm_i2c_write(dev, 3, &tmp, 1);
 304                /* asserting HRESET_REQ */
 305                out_be32(&gur->rstcr, 0x2);
 306                break;
 307        case I2C_SET_BANK4:
 308                tmp = 0x1;
 309                dm_i2c_write(dev, 1, &tmp, 1);
 310                tmp = 0xf8;
 311                dm_i2c_write(dev, 3, &tmp, 1);
 312                out_be32(&gur->rstcr, 0x2);
 313                break;
 314        default:
 315                break;
 316        }
 317#else
 318        u32 orig_bus;
 319
 320        orig_bus = i2c_get_bus_num();
 321
 322        switch (ctrl_type) {
 323        case GPIO1_SD_SEL:
 324                val = in_be32(&pgpio->gpdat);
 325                val |= GPIO1_SD_SEL;
 326                out_be32(&pgpio->gpdat, val);
 327                setbits_be32(&pgpio->gpdir, GPIO1_SD_SEL);
 328                break;
 329        case GPIO1_EMMC_SEL:
 330                val = in_be32(&pgpio->gpdat);
 331                val &= ~GPIO1_SD_SEL;
 332                out_be32(&pgpio->gpdat, val);
 333                setbits_be32(&pgpio->gpdir, GPIO1_SD_SEL);
 334                break;
 335        case GPIO3_GET_VERSION:
 336                pgpio = (ccsr_gpio_t *)(CONFIG_SYS_MPC85xx_GPIO_ADDR
 337                         + GPIO3_OFFSET);
 338                val = in_be32(&pgpio->gpdat);
 339                val = ((val & GPIO3_BRD_VER_MASK) >> 26) & 0x3;
 340                if (val == 0x3) /* GPIO3_4/5 not used on RevB */
 341                        val = 0;
 342                return val;
 343        case I2C_GET_BANK:
 344                i2c_set_bus_num(bus_num);
 345                i2c_read(I2C_PCA6408_ADDR, 0, 1, &tmp, 1);
 346                tmp &= 0x7;
 347                tmp = ((tmp & 1) << 2) | (tmp & 2) | ((tmp & 4) >> 2);
 348                i2c_set_bus_num(orig_bus);
 349                return tmp;
 350        case I2C_SET_BANK0:
 351                i2c_set_bus_num(bus_num);
 352                tmp = 0x0;
 353                i2c_write(I2C_PCA6408_ADDR, 1, 1, &tmp, 1);
 354                tmp = 0xf8;
 355                i2c_write(I2C_PCA6408_ADDR, 3, 1, &tmp, 1);
 356                /* asserting HRESET_REQ */
 357                out_be32(&gur->rstcr, 0x2);
 358                break;
 359        case I2C_SET_BANK4:
 360                i2c_set_bus_num(bus_num);
 361                tmp = 0x1;
 362                i2c_write(I2C_PCA6408_ADDR, 1, 1, &tmp, 1);
 363                tmp = 0xf8;
 364                i2c_write(I2C_PCA6408_ADDR, 3, 1, &tmp, 1);
 365                out_be32(&gur->rstcr, 0x2);
 366                break;
 367        default:
 368                break;
 369        }
 370#endif
 371        return 0;
 372}
 373
 374static int switch_cmd(struct cmd_tbl *cmdtp, int flag, int argc,
 375                      char *const argv[])
 376{
 377        if (argc < 2)
 378                return CMD_RET_USAGE;
 379        if (!strcmp(argv[1], "bank0"))
 380                t1023rdb_ctrl(I2C_SET_BANK0);
 381        else if (!strcmp(argv[1], "bank4") || !strcmp(argv[1], "altbank"))
 382                t1023rdb_ctrl(I2C_SET_BANK4);
 383        else if (!strcmp(argv[1], "sd"))
 384                t1023rdb_ctrl(GPIO1_SD_SEL);
 385        else if (!strcmp(argv[1], "emmc"))
 386                t1023rdb_ctrl(GPIO1_EMMC_SEL);
 387        else
 388                return CMD_RET_USAGE;
 389        return 0;
 390}
 391
 392U_BOOT_CMD(
 393        switch, 2, 0, switch_cmd,
 394        "for bank0/bank4/sd/emmc switch control in runtime",
 395        "command (e.g. switch bank4)"
 396);
 397#endif
 398