--- /dev/null
+/*
+ * 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 */
Code Review / kvmfornfv.git / blobdiff