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Diffstat (limited to 'board/siemens/dxr2/board.c')
| -rw-r--r-- | board/siemens/dxr2/board.c | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/board/siemens/dxr2/board.c b/board/siemens/dxr2/board.c new file mode 100644 index 0000000..af9d84f --- /dev/null +++ b/board/siemens/dxr2/board.c @@ -0,0 +1,241 @@ +/* + * Board functions for TI AM335X based dxr2 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/ + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <errno.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/io.h> +#include <asm/emif.h> +#include <asm/gpio.h> +#include <i2c.h> +#include <miiphy.h> +#include <cpsw.h> +#include <watchdog.h> +#include "board.h" +#include "../common/factoryset.h" + +DECLARE_GLOBAL_DATA_PTR; + +#ifdef CONFIG_SPL_BUILD +static struct dxr2_baseboard_id __attribute__((section(".data"))) settings; + +const struct ddr3_data ddr3_default = { + 0x33524444, 0x56312e33, 0x0100, 0x0001, 0x003A, 0x008A, 0x010B, + 0x00C4, 0x0888A39B, 0x26247FDA, 0x501F821F, 0x0006, 0x61C04AB2, + 0x00000618, +}; + +static void set_default_ddr3_timings(void) +{ + printf("Set default DDR3 settings\n"); + settings.ddr3 = ddr3_default; +} + +static void print_ddr3_timings(void) +{ + printf("\n\nDDR3 Timing parameters:\n"); + printf("Diff Eeprom Default\n"); + 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); +} + +static void print_chip_data(void) +{ + printf("\n"); + printf("Device: '%s'\n", settings.chip.sdevname); + printf("HW version: '%s'\n", settings.chip.shwver); +} +#endif /* CONFIG_SPL_BUILD */ + +/* + * 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("Error: No valid DDR3 data in eeprom.\n"); + if (ddr3_default.version != settings.ddr3.version) + printf("Error: DDR3 data version does not match.\n"); + + printf("Using default settings\n"); + set_default_ddr3_timings(); + } + + if (MAGIC_CHIP == settings.chip.magic) { + printf("Valid chip data in eeprom\n"); + print_chip_data(); + } else { + printf("Error: No chip data in eeprom\n"); + } + + print_ddr3_timings(); +#endif + return 0; +} + +#ifdef CONFIG_SPL_BUILD +static void board_init_ddr(void) +{ +struct emif_regs dxr2_ddr3_emif_reg_data = { + .zq_config = 0x50074BE4, +}; + +struct ddr_data dxr2_ddr3_data = { + .datadldiff0 = PHY_DLL_LOCK_DIFF, +}; + +struct cmd_control dxr2_ddr3_cmd_ctrl_data = { + .cmd0dldiff = 0, + .cmd1dldiff = 0, + .cmd2dldiff = 0, +}; + /* pass values from eeprom */ + dxr2_ddr3_emif_reg_data.sdram_tim1 = settings.ddr3.sdram_tim1; + dxr2_ddr3_emif_reg_data.sdram_tim2 = settings.ddr3.sdram_tim2; + dxr2_ddr3_emif_reg_data.sdram_tim3 = settings.ddr3.sdram_tim3; + dxr2_ddr3_emif_reg_data.emif_ddr_phy_ctlr_1 = + settings.ddr3.emif_ddr_phy_ctlr_1; + dxr2_ddr3_emif_reg_data.sdram_config = settings.ddr3.sdram_config; + dxr2_ddr3_emif_reg_data.ref_ctrl = settings.ddr3.ref_ctrl; + + dxr2_ddr3_data.datardsratio0 = settings.ddr3.dt0rdsratio0; + dxr2_ddr3_data.datawdsratio0 = settings.ddr3.dt0wdsratio0; + dxr2_ddr3_data.datafwsratio0 = settings.ddr3.dt0fwsratio0; + dxr2_ddr3_data.datawrsratio0 = settings.ddr3.dt0wrsratio0; + + dxr2_ddr3_cmd_ctrl_data.cmd0csratio = settings.ddr3.ddr3_sratio; + dxr2_ddr3_cmd_ctrl_data.cmd0iclkout = settings.ddr3.iclkout; + dxr2_ddr3_cmd_ctrl_data.cmd1csratio = settings.ddr3.ddr3_sratio; + dxr2_ddr3_cmd_ctrl_data.cmd1iclkout = settings.ddr3.iclkout; + dxr2_ddr3_cmd_ctrl_data.cmd2csratio = settings.ddr3.ddr3_sratio; + dxr2_ddr3_cmd_ctrl_data.cmd2iclkout = settings.ddr3.iclkout; + + config_ddr(DDR_PLL_FREQ, DXR2_IOCTRL_VAL, &dxr2_ddr3_data, + &dxr2_ddr3_cmd_ctrl_data, &dxr2_ddr3_emif_reg_data, 0); +} + +static void spl_siemens_board_init(void) +{ + return; +} +#endif /* if def CONFIG_SPL_BUILD */ + +#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_id = 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_MUSB_GADGET)) +int board_eth_init(bd_t *bis) +{ + struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; + int n = 0; + int rv; + + factoryset_setenv(); + + /* 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; +} +#endif /* #if defined(CONFIG_DRIVER_TI_CPSW) */ +#endif /* #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) */ + +#include "../common/board.c" |