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u-boot/board/st-ericsson/snowball/snowball.c
Wolfgang Denk 1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files 
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00

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/*
* 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 */
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