diff options
Diffstat (limited to 'roms/u-boot/board/siemens/draco/board.c')
| -rw-r--r-- | roms/u-boot/board/siemens/draco/board.c | 388 |
1 files changed, 388 insertions, 0 deletions
diff --git a/roms/u-boot/board/siemens/draco/board.c b/roms/u-boot/board/siemens/draco/board.c new file mode 100644 index 000000000..01fdfb5cb --- /dev/null +++ b/roms/u-boot/board/siemens/draco/board.c @@ -0,0 +1,388 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Board functions for TI AM335X based draco board + * (C) Copyright 2013 Siemens Schweiz AG + * (C) Heiko Schocher, DENX Software Engineering, hs@denx.de. + * + * Based on: + * + * Board functions for TI AM335X based boards + * u-boot:/board/ti/am335x/board.c + * + * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/ + */ + +#include <common.h> +#include <command.h> +#include <env.h> +#include <errno.h> +#include <init.h> +#include <net.h> +#include <spl.h> +#include <asm/arch/cpu.h> +#include <asm/arch/hardware.h> +#include <asm/arch/omap.h> +#include <asm/arch/ddr_defs.h> +#include <asm/arch/clock.h> +#include <asm/arch/gpio.h> +#include <asm/arch/mmc_host_def.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/mem.h> +#include <asm/io.h> +#include <asm/emif.h> +#include <asm/gpio.h> +#include <i2c.h> +#include <miiphy.h> +#include <cpsw.h> +#include <watchdog.h> +#include <linux/delay.h> +#include "board.h" +#include "../common/factoryset.h" +#include <nand.h> + +#ifdef CONFIG_SPL_BUILD +static struct draco_baseboard_id __section(".data") settings; + +#if DDR_PLL_FREQ == 303 +#if !defined(CONFIG_TARGET_ETAMIN) +/* Default@303MHz-i0 */ +const struct ddr3_data ddr3_default = { + 0x33524444, 0x56312e35, 0x0080, 0x0000, 0x003A, 0x003F, 0x009F, + 0x0079, 0x0888A39B, 0x26517FDA, 0x501F84EF, 0x00100206, 0x61A44A32, + 0x0000093B, 0x0000014A, + "default name @303MHz \0", + "default marking \0", +}; +#else +/* etamin board */ +const struct ddr3_data ddr3_default = { + 0x33524444, 0x56312e36, 0x0080, 0x0000, 0x003A, 0x0010, 0x009F, + 0x0050, 0x0888A39B, 0x266D7FDA, 0x501F86AF, 0x00100206, 0x61A44BB2, + 0x0000093B, 0x0000018A, + "test-etamin \0", + "generic-8Gbit \0", +}; +#endif +#elif DDR_PLL_FREQ == 400 +/* Default@400MHz-i0 */ +const struct ddr3_data ddr3_default = { + 0x33524444, 0x56312e35, 0x0080, 0x0000, 0x0039, 0x0046, 0x00ab, + 0x0080, 0x0AAAA4DB, 0x26307FDA, 0x501F821F, 0x00100207, 0x61A45232, + 0x00000618, 0x0000014A, + "default name @400MHz \0", + "default marking \0", +}; +#endif + +static void set_default_ddr3_timings(void) +{ + printf("Set default DDR3 settings\n"); + settings.ddr3 = ddr3_default; +} + +static void print_ddr3_timings(void) +{ + printf("\nDDR3\n"); + printf("clock:\t\t%d MHz\n", DDR_PLL_FREQ); + printf("device:\t\t%s\n", settings.ddr3.manu_name); + printf("marking:\t%s\n", settings.ddr3.manu_marking); + printf("%-20s, %-8s, %-8s, %-4s\n", "timing parameters", "eeprom", + "default", "diff"); + PRINTARGS(magic); + PRINTARGS(version); + PRINTARGS(ddr3_sratio); + PRINTARGS(iclkout); + + PRINTARGS(dt0rdsratio0); + PRINTARGS(dt0wdsratio0); + PRINTARGS(dt0fwsratio0); + PRINTARGS(dt0wrsratio0); + + PRINTARGS(sdram_tim1); + PRINTARGS(sdram_tim2); + PRINTARGS(sdram_tim3); + + PRINTARGS(emif_ddr_phy_ctlr_1); + + PRINTARGS(sdram_config); + PRINTARGS(ref_ctrl); + PRINTARGS(ioctr_val); +} + +static void print_chip_data(void) +{ + struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; + dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev); + printf("\nCPU BOARD\n"); + printf("device: \t'%s'\n", settings.chip.sdevname); + printf("hw version: \t'%s'\n", settings.chip.shwver); + printf("max freq: \t%d MHz\n", dpll_mpu_opp100.m); +} +#endif /* CONFIG_SPL_BUILD */ + +#define AM335X_NAND_ECC_MASK 0x0f +#define AM335X_NAND_ECC_TYPE_16 0x02 + +static int ecc_type; + +struct am335x_nand_geometry { + u32 magic; + u8 nand_geo_addr; + u8 nand_geo_page; + u8 nand_bus; +}; + +static int draco_read_nand_geometry(void) +{ + struct am335x_nand_geometry geo; + + /* Read NAND geometry */ + if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0x80, 2, + (uchar *)&geo, sizeof(struct am335x_nand_geometry))) { + printf("Could not read the NAND geomtery; something fundamentally wrong on the I2C bus.\n"); + return -EIO; + } + if (geo.magic != 0xa657b310) { + printf("%s: bad magic: %x\n", __func__, geo.magic); + return -EFAULT; + } + if ((geo.nand_bus & AM335X_NAND_ECC_MASK) == AM335X_NAND_ECC_TYPE_16) + ecc_type = 16; + else + ecc_type = 8; + + return 0; +} + +/* + * Read header information from EEPROM into global structure. + */ +static int read_eeprom(void) +{ + /* Check if baseboard eeprom is available */ + if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) { + printf("Could not probe the EEPROM; something fundamentally wrong on the I2C bus.\n"); + return 1; + } + +#ifdef CONFIG_SPL_BUILD + /* Read Siemens eeprom data (DDR3) */ + if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, EEPROM_ADDR_DDR3, 2, + (uchar *)&settings.ddr3, sizeof(struct ddr3_data))) { + printf("Could not read the EEPROM; something fundamentally wrong on the I2C bus.\nUse default DDR3 timings\n"); + set_default_ddr3_timings(); + } + /* Read Siemens eeprom data (CHIP) */ + if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, EEPROM_ADDR_CHIP, 2, + (uchar *)&settings.chip, sizeof(settings.chip))) + printf("Could not read chip settings\n"); + + if (ddr3_default.magic == settings.ddr3.magic && + ddr3_default.version == settings.ddr3.version) { + printf("Using DDR3 settings from EEPROM\n"); + } else { + if (ddr3_default.magic != settings.ddr3.magic) + printf("Warning: No valid DDR3 data in eeprom.\n"); + if (ddr3_default.version != settings.ddr3.version) + printf("Warning: DDR3 data version does not match.\n"); + + printf("Using default settings\n"); + set_default_ddr3_timings(); + } + + if (MAGIC_CHIP == settings.chip.magic) + print_chip_data(); + else + printf("Warning: No chip data in eeprom\n"); + + print_ddr3_timings(); + + return draco_read_nand_geometry(); +#endif + return 0; +} + +#ifdef CONFIG_SPL_BUILD +static void board_init_ddr(void) +{ +struct emif_regs draco_ddr3_emif_reg_data = { + .zq_config = 0x50074BE4, +}; + +struct ddr_data draco_ddr3_data = { +}; + +struct cmd_control draco_ddr3_cmd_ctrl_data = { +}; + +struct ctrl_ioregs draco_ddr3_ioregs = { +}; + + /* pass values from eeprom */ + draco_ddr3_emif_reg_data.sdram_tim1 = settings.ddr3.sdram_tim1; + draco_ddr3_emif_reg_data.sdram_tim2 = settings.ddr3.sdram_tim2; + draco_ddr3_emif_reg_data.sdram_tim3 = settings.ddr3.sdram_tim3; + draco_ddr3_emif_reg_data.emif_ddr_phy_ctlr_1 = + settings.ddr3.emif_ddr_phy_ctlr_1; + draco_ddr3_emif_reg_data.sdram_config = settings.ddr3.sdram_config; + draco_ddr3_emif_reg_data.sdram_config2 = 0x08000000; + draco_ddr3_emif_reg_data.ref_ctrl = settings.ddr3.ref_ctrl; + + draco_ddr3_data.datardsratio0 = settings.ddr3.dt0rdsratio0; + draco_ddr3_data.datawdsratio0 = settings.ddr3.dt0wdsratio0; + draco_ddr3_data.datafwsratio0 = settings.ddr3.dt0fwsratio0; + draco_ddr3_data.datawrsratio0 = settings.ddr3.dt0wrsratio0; + + draco_ddr3_cmd_ctrl_data.cmd0csratio = settings.ddr3.ddr3_sratio; + draco_ddr3_cmd_ctrl_data.cmd0iclkout = settings.ddr3.iclkout; + draco_ddr3_cmd_ctrl_data.cmd1csratio = settings.ddr3.ddr3_sratio; + draco_ddr3_cmd_ctrl_data.cmd1iclkout = settings.ddr3.iclkout; + draco_ddr3_cmd_ctrl_data.cmd2csratio = settings.ddr3.ddr3_sratio; + draco_ddr3_cmd_ctrl_data.cmd2iclkout = settings.ddr3.iclkout; + + draco_ddr3_ioregs.cm0ioctl = settings.ddr3.ioctr_val, + draco_ddr3_ioregs.cm1ioctl = settings.ddr3.ioctr_val, + draco_ddr3_ioregs.cm2ioctl = settings.ddr3.ioctr_val, + draco_ddr3_ioregs.dt0ioctl = settings.ddr3.ioctr_val, + draco_ddr3_ioregs.dt1ioctl = settings.ddr3.ioctr_val, + + config_ddr(DDR_PLL_FREQ, &draco_ddr3_ioregs, &draco_ddr3_data, + &draco_ddr3_cmd_ctrl_data, &draco_ddr3_emif_reg_data, 0); +} + +static void spl_siemens_board_init(void) +{ + return; +} +#endif /* if def CONFIG_SPL_BUILD */ + +#ifdef CONFIG_BOARD_LATE_INIT +int board_late_init(void) +{ + int ret; + + ret = draco_read_nand_geometry(); + if (ret != 0) + return ret; + + nand_curr_device = 0; + omap_nand_switch_ecc(1, ecc_type); +#ifdef CONFIG_TARGET_ETAMIN + nand_curr_device = 1; + omap_nand_switch_ecc(1, ecc_type); +#endif +#ifdef CONFIG_FACTORYSET + /* Set ASN in environment*/ + if (factory_dat.asn[0] != 0) { + env_set("dtb_name", (char *)factory_dat.asn); + } else { + /* dtb suffix gets added in load script */ + env_set("dtb_name", "am335x-draco"); + } +#else + env_set("dtb_name", "am335x-draco"); +#endif + + return 0; +} +#endif + +#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \ + (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD)) +static void cpsw_control(int enabled) +{ + /* VTP can be added here */ + + return; +} + +static struct cpsw_slave_data cpsw_slaves[] = { + { + .slave_reg_ofs = 0x208, + .sliver_reg_ofs = 0xd80, + .phy_addr = 0, + .phy_if = PHY_INTERFACE_MODE_MII, + }, +}; + +static struct cpsw_platform_data cpsw_data = { + .mdio_base = CPSW_MDIO_BASE, + .cpsw_base = CPSW_BASE, + .mdio_div = 0xff, + .channels = 4, + .cpdma_reg_ofs = 0x800, + .slaves = 1, + .slave_data = cpsw_slaves, + .ale_reg_ofs = 0xd00, + .ale_entries = 1024, + .host_port_reg_ofs = 0x108, + .hw_stats_reg_ofs = 0x900, + .bd_ram_ofs = 0x2000, + .mac_control = (1 << 5), + .control = cpsw_control, + .host_port_num = 0, + .version = CPSW_CTRL_VERSION_2, +}; + +#if defined(CONFIG_DRIVER_TI_CPSW) || \ + (defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET)) +int board_eth_init(struct bd_info *bis) +{ + struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; + int n = 0; + int rv; + + factoryset_env_set(); + + /* Set rgmii mode and enable rmii clock to be sourced from chip */ + writel((RMII_MODE_ENABLE | RMII_CHIPCKL_ENABLE), &cdev->miisel); + + rv = cpsw_register(&cpsw_data); + if (rv < 0) + printf("Error %d registering CPSW switch\n", rv); + else + n += rv; + return n; +} + +static int do_switch_reset(struct cmd_tbl *cmdtp, int flag, int argc, + char *const argv[]) +{ + /* Reset SMSC LAN9303 switch for default configuration */ + gpio_request(GPIO_LAN9303_NRST, "nRST"); + gpio_direction_output(GPIO_LAN9303_NRST, 0); + /* assert active low reset for 200us */ + udelay(200); + gpio_set_value(GPIO_LAN9303_NRST, 1); + + return 0; +}; + +U_BOOT_CMD( + switch_rst, CONFIG_SYS_MAXARGS, 1, do_switch_reset, + "Reset LAN9303 switch via its reset pin", + "" +); +#endif /* #if defined(CONFIG_DRIVER_TI_CPSW) */ +#endif /* #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) */ + +#ifdef CONFIG_NAND_CS_INIT +/* GPMC definitions for second nand cs1 */ +static const u32 gpmc_nand_config[] = { + ETAMIN_NAND_GPMC_CONFIG1, + ETAMIN_NAND_GPMC_CONFIG2, + ETAMIN_NAND_GPMC_CONFIG3, + ETAMIN_NAND_GPMC_CONFIG4, + ETAMIN_NAND_GPMC_CONFIG5, + ETAMIN_NAND_GPMC_CONFIG6, + /*CONFIG7- computed as params */ +}; + +static void board_nand_cs_init(void) +{ + enable_gpmc_cs_config(gpmc_nand_config, &gpmc_cfg->cs[1], + 0x18000000, GPMC_SIZE_16M); +} +#endif + +#include "../common/board.c" |