board/st-ericsson/snowball/snowball.c - u-boot - Git at Google

 /*
  * 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 */
	/*
	* 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 */