upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/board/freescale/ls1021atwr/ls1021atwr.c

498 lines
12 KiB

/*
* Copyright 2014 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <i2c.h>
#include <asm/io.h>
#include <asm/arch/immap_ls102xa.h>
#include <asm/arch/clock.h>
#include <asm/arch/fsl_serdes.h>
#include <mmc.h>
#include <fsl_esdhc.h>
#include <fsl_ifc.h>
#include <netdev.h>
#include <fsl_mdio.h>
#include <tsec.h>
#include <fsl_sec.h>
DECLARE_GLOBAL_DATA_PTR;
#define VERSION_MASK 0x00FF
#define BANK_MASK 0x0001
#define CONFIG_RESET 0x1
#define INIT_RESET 0x1
#define CPLD_SET_MUX_SERDES 0x20
#define CPLD_SET_BOOT_BANK 0x40
#define BOOT_FROM_UPPER_BANK 0x0
#define BOOT_FROM_LOWER_BANK 0x1
#define LANEB_SATA (0x01)
#define LANEB_SGMII1 (0x02)
#define LANEC_SGMII1 (0x04)
#define LANEC_PCIEX1 (0x08)
#define LANED_PCIEX2 (0x10)
#define LANED_SGMII2 (0x20)
#define MASK_LANE_B 0x1
#define MASK_LANE_C 0x2
#define MASK_LANE_D 0x4
#define MASK_SGMII 0x8
#define KEEP_STATUS 0x0
#define NEED_RESET 0x1
struct cpld_data {
u8 cpld_ver; /* cpld revision */
u8 cpld_ver_sub; /* cpld sub revision */
u8 pcba_ver; /* pcb revision number */
u8 system_rst; /* reset system by cpld */
u8 soft_mux_on; /* CPLD override physical switches Enable */
u8 cfg_rcw_src1; /* Reset config word 1 */
u8 cfg_rcw_src2; /* Reset config word 2 */
u8 vbank; /* Flash bank selection Control */
u8 gpio; /* GPIO for TWR-ELEV */
u8 i2c3_ifc_mux;
u8 mux_spi2;
u8 can3_usb2_mux; /* CAN3 and USB2 Selection */
u8 qe_lcd_mux; /* QE and LCD Selection */
u8 serdes_mux; /* Multiplexed pins for SerDes Lanes */
u8 global_rst; /* reset with init CPLD reg to default */
u8 rev1; /* Reserved */
u8 rev2; /* Reserved */
};
static void convert_serdes_mux(int type, int need_reset);
void cpld_show(void)
{
struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
printf("CPLD: V%x.%x\nPCBA: V%x.0\nVBank: %d\n",
in_8(&cpld_data->cpld_ver) & VERSION_MASK,
in_8(&cpld_data->cpld_ver_sub) & VERSION_MASK,
in_8(&cpld_data->pcba_ver) & VERSION_MASK,
in_8(&cpld_data->vbank) & BANK_MASK);
#ifdef CONFIG_DEBUG
printf("soft_mux_on =%x\n",
in_8(&cpld_data->soft_mux_on));
printf("cfg_rcw_src1 =%x\n",
in_8(&cpld_data->cfg_rcw_src1));
printf("cfg_rcw_src2 =%x\n",
in_8(&cpld_data->cfg_rcw_src2));
printf("vbank =%x\n",
in_8(&cpld_data->vbank));
printf("gpio =%x\n",
in_8(&cpld_data->gpio));
printf("i2c3_ifc_mux =%x\n",
in_8(&cpld_data->i2c3_ifc_mux));
printf("mux_spi2 =%x\n",
in_8(&cpld_data->mux_spi2));
printf("can3_usb2_mux =%x\n",
in_8(&cpld_data->can3_usb2_mux));
printf("qe_lcd_mux =%x\n",
in_8(&cpld_data->qe_lcd_mux));
printf("serdes_mux =%x\n",
in_8(&cpld_data->serdes_mux));
#endif
}
int checkboard(void)
{
puts("Board: LS1021ATWR\n");
cpld_show();
return 0;
}
void ddrmc_init(void)
{
struct ccsr_ddr *ddr = (struct ccsr_ddr *)CONFIG_SYS_FSL_DDR_ADDR;
out_be32(&ddr->sdram_cfg, DDR_SDRAM_CFG);
out_be32(&ddr->cs0_bnds, DDR_CS0_BNDS);
out_be32(&ddr->cs0_config, DDR_CS0_CONFIG);
out_be32(&ddr->timing_cfg_0, DDR_TIMING_CFG_0);
out_be32(&ddr->timing_cfg_1, DDR_TIMING_CFG_1);
out_be32(&ddr->timing_cfg_2, DDR_TIMING_CFG_2);
out_be32(&ddr->timing_cfg_3, DDR_TIMING_CFG_3);
out_be32(&ddr->timing_cfg_4, DDR_TIMING_CFG_4);
out_be32(&ddr->timing_cfg_5, DDR_TIMING_CFG_5);
out_be32(&ddr->sdram_cfg_2, DDR_SDRAM_CFG_2);
out_be32(&ddr->sdram_mode, DDR_SDRAM_MODE);
out_be32(&ddr->sdram_mode_2, DDR_SDRAM_MODE_2);
out_be32(&ddr->sdram_interval, DDR_SDRAM_INTERVAL);
out_be32(&ddr->ddr_wrlvl_cntl, DDR_DDR_WRLVL_CNTL);
out_be32(&ddr->ddr_wrlvl_cntl_2, DDR_DDR_WRLVL_CNTL_2);
out_be32(&ddr->ddr_wrlvl_cntl_3, DDR_DDR_WRLVL_CNTL_3);
out_be32(&ddr->ddr_cdr1, DDR_DDR_CDR1);
out_be32(&ddr->ddr_cdr2, DDR_DDR_CDR2);
out_be32(&ddr->sdram_clk_cntl, DDR_SDRAM_CLK_CNTL);
out_be32(&ddr->ddr_zq_cntl, DDR_DDR_ZQ_CNTL);
out_be32(&ddr->cs0_config_2, DDR_CS0_CONFIG_2);
udelay(1);
out_be32(&ddr->sdram_cfg, DDR_SDRAM_CFG | DDR_SDRAM_CFG_MEM_EN);
}
int dram_init(void)
{
#if (!defined(CONFIG_SPL) || defined(CONFIG_SPL_BUILD))
ddrmc_init();
#endif
gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
return 0;
}
#ifdef CONFIG_FSL_ESDHC
struct fsl_esdhc_cfg esdhc_cfg[1] = {
{CONFIG_SYS_FSL_ESDHC_ADDR},
};
int board_mmc_init(bd_t *bis)
{
esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
return fsl_esdhc_initialize(bis, &esdhc_cfg[0]);
}
#endif
#ifdef CONFIG_TSEC_ENET
int board_eth_init(bd_t *bis)
{
struct fsl_pq_mdio_info mdio_info;
struct tsec_info_struct tsec_info[4];
int num = 0;
#ifdef CONFIG_TSEC1
SET_STD_TSEC_INFO(tsec_info[num], 1);
if (is_serdes_configured(SGMII_TSEC1)) {
puts("eTSEC1 is in sgmii mode.\n");
tsec_info[num].flags |= TSEC_SGMII;
}
num++;
#endif
#ifdef CONFIG_TSEC2
SET_STD_TSEC_INFO(tsec_info[num], 2);
if (is_serdes_configured(SGMII_TSEC2)) {
puts("eTSEC2 is in sgmii mode.\n");
tsec_info[num].flags |= TSEC_SGMII;
}
num++;
#endif
#ifdef CONFIG_TSEC3
SET_STD_TSEC_INFO(tsec_info[num], 3);
num++;
#endif
if (!num) {
printf("No TSECs initialized\n");
return 0;
}
mdio_info.regs = (struct tsec_mii_mng *)CONFIG_SYS_MDIO_BASE_ADDR;
mdio_info.name = DEFAULT_MII_NAME;
fsl_pq_mdio_init(bis, &mdio_info);
tsec_eth_init(bis, tsec_info, num);
return pci_eth_init(bis);
}
#endif
int config_serdes_mux(void)
{
struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
u32 protocol = in_be32(&gur->rcwsr[4]) & RCWSR4_SRDS1_PRTCL_MASK;
protocol >>= RCWSR4_SRDS1_PRTCL_SHIFT;
switch (protocol) {
case 0x10:
convert_serdes_mux(LANEB_SATA, KEEP_STATUS);
convert_serdes_mux(LANED_PCIEX2 |
LANEC_PCIEX1, KEEP_STATUS);
break;
case 0x20:
convert_serdes_mux(LANEB_SGMII1, KEEP_STATUS);
convert_serdes_mux(LANEC_PCIEX1, KEEP_STATUS);
convert_serdes_mux(LANED_SGMII2, KEEP_STATUS);
break;
case 0x30:
convert_serdes_mux(LANEB_SATA, KEEP_STATUS);
convert_serdes_mux(LANEC_SGMII1, KEEP_STATUS);
convert_serdes_mux(LANED_SGMII2, KEEP_STATUS);
break;
case 0x70:
convert_serdes_mux(LANEB_SATA, KEEP_STATUS);
convert_serdes_mux(LANEC_PCIEX1, KEEP_STATUS);
convert_serdes_mux(LANED_SGMII2, KEEP_STATUS);
break;
}
return 0;
}
int board_early_init_f(void)
{
struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR;
#ifdef CONFIG_TSEC_ENET
out_be32(&scfg->scfgrevcr, SCFG_SCFGREVCR_REV);
out_be32(&scfg->etsecdmamcr, SCFG_ETSECDMAMCR_LE_BD_FR);
out_be32(&scfg->etsecmcr, SCFG_ETSECCMCR_GE2_CLK125);
udelay(10);
out_be32(&scfg->scfgrevcr, SCFG_SCFGREVCR_NOREV);
#endif
#ifdef CONFIG_FSL_IFC
init_early_memctl_regs();
#endif
#ifdef CONFIG_FSL_DCU_FB
out_be32(&scfg->scfgrevcr, SCFG_SCFGREVCR_REV);
out_be32(&scfg->pixclkcr, SCFG_PIXCLKCR_PXCKEN);
out_be32(&scfg->scfgrevcr, SCFG_SCFGREVCR_NOREV);
#endif
return 0;
}
int board_init(void)
{
#ifndef CONFIG_SYS_FSL_NO_SERDES
fsl_serdes_init();
config_serdes_mux();
#endif
return 0;
}
#if defined(CONFIG_MISC_INIT_R)
int misc_init_r(void)
{
#ifdef CONFIG_FSL_CAAM
return sec_init();
#endif
}
#endif
void ft_board_setup(void *blob, bd_t *bd)
{
ft_cpu_setup(blob, bd);
}
u8 flash_read8(void *addr)
{
return __raw_readb(addr + 1);
}
void flash_write16(u16 val, void *addr)
{
u16 shftval = (((val >> 8) & 0xff) | ((val << 8) & 0xff00));
__raw_writew(shftval, addr);
}
u16 flash_read16(void *addr)
{
u16 val = __raw_readw(addr);
return (((val) >> 8) & 0x00ff) | (((val) << 8) & 0xff00);
}
static void convert_flash_bank(char bank)
{
struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
printf("Now switch to boot from flash bank %d.\n", bank);
cpld_data->soft_mux_on = CPLD_SET_BOOT_BANK;
cpld_data->vbank = bank;
printf("Reset board to enable configuration.\n");
cpld_data->system_rst = CONFIG_RESET;
}
static int flash_bank_cmd(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
if (argc != 2)
return CMD_RET_USAGE;
if (strcmp(argv[1], "0") == 0)
convert_flash_bank(BOOT_FROM_UPPER_BANK);
else if (strcmp(argv[1], "1") == 0)
convert_flash_bank(BOOT_FROM_LOWER_BANK);
else
return CMD_RET_USAGE;
return 0;
}
U_BOOT_CMD(
boot_bank, 2, 0, flash_bank_cmd,
"Flash bank Selection Control",
"bank[0-upper bank/1-lower bank] (e.g. boot_bank 0)"
);
static int cpld_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
if (argc > 2)
return CMD_RET_USAGE;
if ((argc == 1) || (strcmp(argv[1], "conf") == 0))
cpld_data->system_rst = CONFIG_RESET;
else if (strcmp(argv[1], "init") == 0)
cpld_data->global_rst = INIT_RESET;
else
return CMD_RET_USAGE;
return 0;
}
U_BOOT_CMD(
cpld_reset, 2, 0, cpld_reset_cmd,
"Reset via CPLD",
"conf\n"
" -reset with current CPLD configuration\n"
"init\n"
" -reset and initial CPLD configuration with default value"
);
static void convert_serdes_mux(int type, int need_reset)
{
char current_serdes;
struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
current_serdes = cpld_data->serdes_mux;
switch (type) {
case LANEB_SATA:
current_serdes &= ~MASK_LANE_B;
break;
case LANEB_SGMII1:
current_serdes |= (MASK_LANE_B | MASK_SGMII | MASK_LANE_C);
break;
case LANEC_SGMII1:
current_serdes &= ~(MASK_LANE_B | MASK_SGMII | MASK_LANE_C);
break;
case LANED_SGMII2:
current_serdes |= MASK_LANE_D;
break;
case LANEC_PCIEX1:
current_serdes |= MASK_LANE_C;
break;
case (LANED_PCIEX2 | LANEC_PCIEX1):
current_serdes |= MASK_LANE_C;
current_serdes &= ~MASK_LANE_D;
break;
default:
printf("CPLD serdes MUX: unsupported MUX type 0x%x\n", type);
return;
}
cpld_data->soft_mux_on |= CPLD_SET_MUX_SERDES;
cpld_data->serdes_mux = current_serdes;
if (need_reset == 1) {
printf("Reset board to enable configuration\n");
cpld_data->system_rst = CONFIG_RESET;
}
}
void print_serdes_mux(void)
{
char current_serdes;
struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
current_serdes = cpld_data->serdes_mux;
printf("Serdes Lane B: ");
if ((current_serdes & MASK_LANE_B) == 0)
printf("SATA,\n");
else
printf("SGMII 1,\n");
printf("Serdes Lane C: ");
if ((current_serdes & MASK_LANE_C) == 0)
printf("SGMII 1,\n");
else
printf("PCIe,\n");
printf("Serdes Lane D: ");
if ((current_serdes & MASK_LANE_D) == 0)
printf("PCIe,\n");
else
printf("SGMII 2,\n");
printf("SGMII 1 is on lane ");
if ((current_serdes & MASK_SGMII) == 0)
printf("C.\n");
else
printf("B.\n");
}
static int serdes_mux_cmd(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
if (argc != 2)
return CMD_RET_USAGE;
if (strcmp(argv[1], "sata") == 0) {
printf("Set serdes lane B to SATA.\n");
convert_serdes_mux(LANEB_SATA, NEED_RESET);
} else if (strcmp(argv[1], "sgmii1b") == 0) {
printf("Set serdes lane B to SGMII 1.\n");
convert_serdes_mux(LANEB_SGMII1, NEED_RESET);
} else if (strcmp(argv[1], "sgmii1c") == 0) {
printf("Set serdes lane C to SGMII 1.\n");
convert_serdes_mux(LANEC_SGMII1, NEED_RESET);
} else if (strcmp(argv[1], "sgmii2") == 0) {
printf("Set serdes lane D to SGMII 2.\n");
convert_serdes_mux(LANED_SGMII2, NEED_RESET);
} else if (strcmp(argv[1], "pciex1") == 0) {
printf("Set serdes lane C to PCIe X1.\n");
convert_serdes_mux(LANEC_PCIEX1, NEED_RESET);
} else if (strcmp(argv[1], "pciex2") == 0) {
printf("Set serdes lane C & lane D to PCIe X2.\n");
convert_serdes_mux((LANED_PCIEX2 | LANEC_PCIEX1), NEED_RESET);
} else if (strcmp(argv[1], "show") == 0) {
print_serdes_mux();
} else {
return CMD_RET_USAGE;
}
return 0;
}
U_BOOT_CMD(
lane_bank, 2, 0, serdes_mux_cmd,
"Multiplexed function setting for SerDes Lanes",
"sata\n"
" -change lane B to sata\n"
"lane_bank sgmii1b\n"
" -change lane B to SGMII1\n"
"lane_bank sgmii1c\n"
" -change lane C to SGMII1\n"
"lane_bank sgmii2\n"
" -change lane D to SGMII2\n"
"lane_bank pciex1\n"
" -change lane C to PCIeX1\n"
"lane_bank pciex2\n"
" -change lane C & lane D to PCIeX2\n"
"\nWARNING: If you aren't familiar with the setting of serdes, don't try to change anything!\n"
);