diff options
Diffstat (limited to 'roms/u-boot/board/st-ericsson/snowball/snowball.c')
| -rw-r--r-- | roms/u-boot/board/st-ericsson/snowball/snowball.c | 340 |
1 files changed, 340 insertions, 0 deletions
diff --git a/roms/u-boot/board/st-ericsson/snowball/snowball.c b/roms/u-boot/board/st-ericsson/snowball/snowball.c new file mode 100644 index 00000000..c3061e20 --- /dev/null +++ b/roms/u-boot/board/st-ericsson/snowball/snowball.c @@ -0,0 +1,340 @@ +/* + * Copyright (C) ST-Ericsson SA 2009 + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <config.h> +#include <common.h> +#include <malloc.h> +#include <i2c.h> +#include <mmc.h> +#include <asm/types.h> +#include <asm/io.h> +#include <asm/errno.h> +#include <asm/arch/db8500_pincfg.h> +#include <asm/arch/prcmu.h> +#include <asm/arch/hardware.h> +#include <asm/arch/sys_proto.h> + +#ifdef CONFIG_MMC +#include "../../../drivers/mmc/arm_pl180_mmci.h" +#endif +#include "db8500_pins.h" + +/* + * Get a global data pointer + */ +DECLARE_GLOBAL_DATA_PTR; + +/* + * Memory controller register + */ +#define DMC_BASE_ADDR 0x80156000 +#define DMC_CTL_97 (DMC_BASE_ADDR + 0x184) + +/* + * GPIO pin config common for MOP500/HREF boards + */ +unsigned long gpio_cfg_common[] = { + /* I2C */ + GPIO147_I2C0_SCL, + GPIO148_I2C0_SDA, + GPIO16_I2C1_SCL, + GPIO17_I2C1_SDA, + GPIO10_I2C2_SDA, + GPIO11_I2C2_SCL, + GPIO229_I2C3_SDA, + GPIO230_I2C3_SCL, + + /* SSP0, to AB8500 */ + GPIO143_SSP0_CLK, + GPIO144_SSP0_FRM, + GPIO145_SSP0_RXD | PIN_PULL_DOWN, + GPIO146_SSP0_TXD, + + /* MMC0 (MicroSD card) */ + GPIO18_MC0_CMDDIR | PIN_OUTPUT_HIGH, + GPIO19_MC0_DAT0DIR | PIN_OUTPUT_HIGH, + GPIO20_MC0_DAT2DIR | PIN_OUTPUT_HIGH, + GPIO21_MC0_DAT31DIR | PIN_OUTPUT_HIGH, + GPIO22_MC0_FBCLK | PIN_INPUT_NOPULL, + GPIO23_MC0_CLK | PIN_OUTPUT_LOW, + GPIO24_MC0_CMD | PIN_INPUT_PULLUP, + GPIO25_MC0_DAT0 | PIN_INPUT_PULLUP, + GPIO26_MC0_DAT1 | PIN_INPUT_PULLUP, + GPIO27_MC0_DAT2 | PIN_INPUT_PULLUP, + GPIO28_MC0_DAT3 | PIN_INPUT_PULLUP, + + /* MMC4 (On-board eMMC) */ + GPIO197_MC4_DAT3 | PIN_INPUT_PULLUP, + GPIO198_MC4_DAT2 | PIN_INPUT_PULLUP, + GPIO199_MC4_DAT1 | PIN_INPUT_PULLUP, + GPIO200_MC4_DAT0 | PIN_INPUT_PULLUP, + GPIO201_MC4_CMD | PIN_INPUT_PULLUP, + GPIO202_MC4_FBCLK | PIN_INPUT_NOPULL, + GPIO203_MC4_CLK | PIN_OUTPUT_LOW, + GPIO204_MC4_DAT7 | PIN_INPUT_PULLUP, + GPIO205_MC4_DAT6 | PIN_INPUT_PULLUP, + GPIO206_MC4_DAT5 | PIN_INPUT_PULLUP, + GPIO207_MC4_DAT4 | PIN_INPUT_PULLUP, + + /* UART2, console */ + GPIO29_U2_RXD | PIN_INPUT_PULLUP, + GPIO30_U2_TXD | PIN_OUTPUT_HIGH, + GPIO31_U2_CTSn | PIN_INPUT_PULLUP, + GPIO32_U2_RTSn | PIN_OUTPUT_HIGH, + + /* + * USB, pin 256-267 USB, Is probably already setup correctly from + * BootROM/boot stages, but we don't trust that and set it up anyway + */ + GPIO256_USB_NXT, + GPIO257_USB_STP, + GPIO258_USB_XCLK, + GPIO259_USB_DIR, + GPIO260_USB_DAT7, + GPIO261_USB_DAT6, + GPIO262_USB_DAT5, + GPIO263_USB_DAT4, + GPIO264_USB_DAT3, + GPIO265_USB_DAT2, + GPIO266_USB_DAT1, + GPIO267_USB_DAT0, +}; + +unsigned long gpio_cfg_snowball[] = { + /* MMC0 (MicroSD card) */ + GPIO217_GPIO | PIN_OUTPUT_HIGH, /* MMC_EN */ + GPIO218_GPIO | PIN_INPUT_NOPULL, /* MMC_CD */ + GPIO228_GPIO | PIN_OUTPUT_HIGH, /* SD_SEL */ + + /* eMMC */ + GPIO167_GPIO | PIN_OUTPUT_HIGH, /* RSTn_MLC */ + + /* LAN */ + GPIO131_SM_ADQ8, + GPIO132_SM_ADQ9, + GPIO133_SM_ADQ10, + GPIO134_SM_ADQ11, + GPIO135_SM_ADQ12, + GPIO136_SM_ADQ13, + GPIO137_SM_ADQ14, + GPIO138_SM_ADQ15, + + /* RSTn_LAN */ + GPIO141_GPIO | PIN_OUTPUT_HIGH, +}; + +/* + * Miscellaneous platform dependent initialisations + */ + +int board_init(void) +{ + /* + * Setup board (bd) and board-info (bi). + * bi_arch_number: Unique id for this board. It will passed in r1 to + * Linux startup code and is the machine_id. + * bi_boot_params: Where this board expects params. + */ + gd->bd->bi_arch_number = MACH_TYPE_SNOWBALL; + gd->bd->bi_boot_params = 0x00000100; + + /* Configure GPIO pins needed by U-boot */ + db8500_gpio_config_pins(gpio_cfg_common, ARRAY_SIZE(gpio_cfg_common)); + + db8500_gpio_config_pins(gpio_cfg_snowball, + ARRAY_SIZE(gpio_cfg_snowball)); + + return 0; +} + +int dram_init(void) +{ + gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; + gd->ram_size = gd->bd->bi_dram[0].size = + get_ram_size(CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MAX_RAM_SIZE); + + return 0; +} + +static int raise_ab8500_gpio16(void) +{ + int ret; + + /* selection */ + ret = ab8500_read(AB8500_MISC, AB8500_GPIO_SEL2_REG); + if (ret < 0) + goto out; + + ret |= 0x80; + ret = ab8500_write(AB8500_MISC, AB8500_GPIO_SEL2_REG, ret); + if (ret < 0) + goto out; + + /* direction */ + ret = ab8500_read(AB8500_MISC, AB8500_GPIO_DIR2_REG); + if (ret < 0) + goto out; + + ret |= 0x80; + ret = ab8500_write(AB8500_MISC, AB8500_GPIO_DIR2_REG, ret); + if (ret < 0) + goto out; + + /* out */ + ret = ab8500_read(AB8500_MISC, AB8500_GPIO_OUT2_REG); + if (ret < 0) + goto out; + + ret |= 0x80; + ret = ab8500_write(AB8500_MISC, AB8500_GPIO_OUT2_REG, ret); + +out: + return ret; +} + +static int raise_ab8500_gpio26(void) +{ + int ret; + + /* selection */ + ret = ab8500_read(AB8500_MISC, AB8500_GPIO_DIR4_REG); + if (ret < 0) + goto out; + + ret |= 0x2; + ret = ab8500_write(AB8500_MISC, AB8500_GPIO_DIR4_REG, ret); + if (ret < 0) + goto out; + + /* out */ + ret = ab8500_read(AB8500_MISC, AB8500_GPIO_OUT4_REG); + if (ret < 0) + goto out; + + ret |= 0x2; + ret = ab8500_write(AB8500_MISC, AB8500_GPIO_OUT4_REG, ret); + +out: + return ret; +} + +int board_late_init(void) +{ + /* enable 3V3 for LAN controller */ + if (raise_ab8500_gpio26() >= 0) { + /* Turn on FSMC device */ + writel(0x1, 0x8000f000); + writel(0x1, 0x8000f008); + + /* setup FSMC for LAN controler */ + writel(0x305b, 0x80000000); + + /* run at the highest possible speed */ + writel(0x01010210, 0x80000004); + } else + printf("error: can't raise GPIO26\n"); + + /* enable 3v6 for GBF chip */ + if ((raise_ab8500_gpio16() < 0)) + printf("error: cant' raise GPIO16\n"); + + /* empty UART RX FIFO */ + while (tstc()) + (void) getc(); + + return 0; +} + +#ifdef CONFIG_MMC +/* + * emmc_host_init - initialize the emmc controller. + * Configure GPIO settings, set initial clock and power for emmc slot. + * Initialize mmc struct and register with mmc framework. + */ +static int emmc_host_init(void) +{ + struct pl180_mmc_host *host; + + host = malloc(sizeof(struct pl180_mmc_host)); + if (!host) + return -ENOMEM; + memset(host, 0, sizeof(*host)); + + host->base = (struct sdi_registers *)CFG_EMMC_BASE; + host->pwr_init = SDI_PWR_OPD | SDI_PWR_PWRCTRL_ON; + host->clkdiv_init = SDI_CLKCR_CLKDIV_INIT_V2 | + SDI_CLKCR_CLKEN | SDI_CLKCR_HWFC_EN; + strcpy(host->name, "EMMC"); + host->caps = MMC_MODE_8BIT | MMC_MODE_HS | MMC_MODE_HS_52MHz; + host->voltages = VOLTAGE_WINDOW_MMC; + host->clock_min = ARM_MCLK / (2 + SDI_CLKCR_CLKDIV_INIT_V2); + host->clock_max = ARM_MCLK / 2; + host->clock_in = ARM_MCLK; + host->version2 = 1; + + return arm_pl180_mmci_init(host); +} + +/* + * mmc_host_init - initialize the external mmc controller. + * Configure GPIO settings, set initial clock and power for mmc slot. + * Initialize mmc struct and register with mmc framework. + */ +static int mmc_host_init(void) +{ + struct pl180_mmc_host *host; + u32 sdi_u32; + + host = malloc(sizeof(struct pl180_mmc_host)); + if (!host) + return -ENOMEM; + memset(host, 0, sizeof(*host)); + + host->base = (struct sdi_registers *)CFG_MMC_BASE; + sdi_u32 = 0xBF; + writel(sdi_u32, &host->base->power); + host->pwr_init = 0xBF; + host->clkdiv_init = SDI_CLKCR_CLKDIV_INIT_V2 | + SDI_CLKCR_CLKEN | SDI_CLKCR_HWFC_EN; + strcpy(host->name, "MMC"); + host->caps = MMC_MODE_8BIT; + host->b_max = 0; + host->voltages = VOLTAGE_WINDOW_SD; + host->clock_min = ARM_MCLK / (2 + SDI_CLKCR_CLKDIV_INIT_V2); + host->clock_max = ARM_MCLK / 2; + host->clock_in = ARM_MCLK; + host->version2 = 1; + + return arm_pl180_mmci_init(host); +} + +/* + * board_mmc_init - initialize all the mmc/sd host controllers. + * Called by generic mmc framework. + */ +int board_mmc_init(bd_t *bis) +{ + int error; + + (void) bis; + + error = emmc_host_init(); + if (error) { + printf("emmc_host_init() %d\n", error); + return -1; + } + + u8500_mmc_power_init(); + + error = mmc_host_init(); + if (error) { + printf("mmc_host_init() %d\n", error); + return -1; + } + + return 0; +} +#endif /* CONFIG_MMC */ |