diff options
Diffstat (limited to 'board/freescale/ls1021atwr/ls1021atwr.c')
| -rw-r--r-- | board/freescale/ls1021atwr/ls1021atwr.c | 482 |
1 files changed, 482 insertions, 0 deletions
diff --git a/board/freescale/ls1021atwr/ls1021atwr.c b/board/freescale/ls1021atwr/ls1021atwr.c new file mode 100644 index 0000000000..92ad8cd9bd --- /dev/null +++ b/board/freescale/ls1021atwr/ls1021atwr.c @@ -0,0 +1,482 @@ +/* + * 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> + +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 + + return 0; +} + +int board_init(void) +{ +#ifndef CONFIG_SYS_FSL_NO_SERDES + fsl_serdes_init(); + config_serdes_mux(); +#endif + + return 0; +} + +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" +); |