u-boot/board/samsung/smdk5250/smdk5250.c

/*
 * Copyright (C) 2012 Samsung Electronics
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <fdtdec.h>
#include <asm/io.h>
#include <errno.h>
#include <i2c.h>
#include <lcd.h>
#include <netdev.h>
#include <spi.h>
#include <asm/arch/cpu.h>
#include <asm/arch/gpio.h>
#include <asm/arch/mmc.h>
#include <asm/arch/pinmux.h>
#include <asm/arch/power.h>
#include <asm/arch/sromc.h>
#include <asm/arch/dp_info.h>
#include <power/pmic.h>
#include <power/max77686_pmic.h>
#include <tmu.h>

DECLARE_GLOBAL_DATA_PTR;

#if defined CONFIG_EXYNOS_TMU
/*
 * Boot Time Thermal Analysis for SoC temperature threshold breach
 */
static void boot_temp_check(void)
{
	int temp;

	switch (tmu_monitor(&temp)) {
	/* Status TRIPPED ans WARNING means corresponding threshold breach */
	case TMU_STATUS_TRIPPED:
		puts("EXYNOS_TMU: TRIPPING! Device power going down ...\n");
		set_ps_hold_ctrl();
		hang();
		break;
	case TMU_STATUS_WARNING:
		puts("EXYNOS_TMU: WARNING! Temperature very high\n");
		break;
	/*
	 * TMU_STATUS_INIT means something is wrong with temperature sensing
	 * and TMU status was changed back from NORMAL to INIT.
	 */
	case TMU_STATUS_INIT:
	default:
		debug("EXYNOS_TMU: Unknown TMU state\n");
	}
}
#endif

#ifdef CONFIG_USB_EHCI_EXYNOS
int board_usb_vbus_init(void)
{
	struct exynos5_gpio_part1 *gpio1 = (struct exynos5_gpio_part1 *)
						samsung_get_base_gpio_part1();

	/* Enable VBUS power switch */
	s5p_gpio_direction_output(&gpio1->x2, 6, 1);

	/* VBUS turn ON time */
	mdelay(3);

	return 0;
}
#endif

#ifdef CONFIG_SOUND_MAX98095
static void  board_enable_audio_codec(void)
{
	struct exynos5_gpio_part1 *gpio1 = (struct exynos5_gpio_part1 *)
						samsung_get_base_gpio_part1();

	/* Enable MAX98095 Codec */
	s5p_gpio_direction_output(&gpio1->x1, 7, 1);
	s5p_gpio_set_pull(&gpio1->x1, 7, GPIO_PULL_NONE);
}
#endif

int board_init(void)
{
	gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL);

#if defined CONFIG_EXYNOS_TMU
	if (tmu_init(gd->fdt_blob) != TMU_STATUS_NORMAL) {
		debug("%s: Failed to init TMU\n", __func__);
		return -1;
	}
	boot_temp_check();
#endif

#ifdef CONFIG_EXYNOS_SPI
	spi_init();
#endif
#ifdef CONFIG_USB_EHCI_EXYNOS
	board_usb_vbus_init();
#endif
#ifdef CONFIG_SOUND_MAX98095
	board_enable_audio_codec();
#endif
	return 0;
}

int dram_init(void)
{
	gd->ram_size	= get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE)
			+ get_ram_size((long *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE)
			+ get_ram_size((long *)PHYS_SDRAM_3, PHYS_SDRAM_3_SIZE)
			+ get_ram_size((long *)PHYS_SDRAM_4, PHYS_SDRAM_4_SIZE)
			+ get_ram_size((long *)PHYS_SDRAM_5, PHYS_SDRAM_7_SIZE)
			+ get_ram_size((long *)PHYS_SDRAM_6, PHYS_SDRAM_7_SIZE)
			+ get_ram_size((long *)PHYS_SDRAM_7, PHYS_SDRAM_7_SIZE)
			+ get_ram_size((long *)PHYS_SDRAM_8, PHYS_SDRAM_8_SIZE);
	return 0;
}

#if defined(CONFIG_POWER)
static int pmic_reg_update(struct pmic *p, int reg, uint regval)
{
	u32 val;
	int ret = 0;

	ret = pmic_reg_read(p, reg, &val);
	if (ret) {
		debug("%s: PMIC %d register read failed\n", __func__, reg);
		return -1;
	}
	val |= regval;
	ret = pmic_reg_write(p, reg, val);
	if (ret) {
		debug("%s: PMIC %d register write failed\n", __func__, reg);
		return -1;
	}
	return 0;
}

int power_init_board(void)
{
	struct pmic *p;

	set_ps_hold_ctrl();

	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);

	if (pmic_init(I2C_PMIC))
		return -1;

	p = pmic_get("MAX77686_PMIC");
	if (!p)
		return -ENODEV;

	if (pmic_probe(p))
		return -1;

	if (pmic_reg_update(p, MAX77686_REG_PMIC_32KHZ, MAX77686_32KHCP_EN))
		return -1;

	if (pmic_reg_update(p, MAX77686_REG_PMIC_BBAT,
				MAX77686_BBCHOSTEN | MAX77686_BBCVS_3_5V))
		return -1;

	/* VDD_MIF */
	if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK1OUT,
						MAX77686_BUCK1OUT_1V)) {
		debug("%s: PMIC %d register write failed\n", __func__,
						MAX77686_REG_PMIC_BUCK1OUT);
		return -1;
	}

	if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK1CRTL,
						MAX77686_BUCK1CTRL_EN))
		return -1;

	/* VDD_ARM */
	if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK2DVS1,
					MAX77686_BUCK2DVS1_1_3V)) {
		debug("%s: PMIC %d register write failed\n", __func__,
						MAX77686_REG_PMIC_BUCK2DVS1);
		return -1;
	}

	if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK2CTRL1,
					MAX77686_BUCK2CTRL_ON))
		return -1;

	/* VDD_INT */
	if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK3DVS1,
					MAX77686_BUCK3DVS1_1_0125V)) {
		debug("%s: PMIC %d register write failed\n", __func__,
						MAX77686_REG_PMIC_BUCK3DVS1);
		return -1;
	}

	if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK3CTRL,
					MAX77686_BUCK3CTRL_ON))
		return -1;

	/* VDD_G3D */
	if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK4DVS1,
					MAX77686_BUCK4DVS1_1_2V)) {
		debug("%s: PMIC %d register write failed\n", __func__,
						MAX77686_REG_PMIC_BUCK4DVS1);
		return -1;
	}

	if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK4CTRL1,
					MAX77686_BUCK3CTRL_ON))
		return -1;

	/* VDD_LDO2 */
	if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO2CTRL1,
				MAX77686_LD02CTRL1_1_5V | EN_LDO))
		return -1;

	/* VDD_LDO3 */
	if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO3CTRL1,
				MAX77686_LD03CTRL1_1_8V | EN_LDO))
		return -1;

	/* VDD_LDO5 */
	if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO5CTRL1,
				MAX77686_LD05CTRL1_1_8V | EN_LDO))
		return -1;

	/* VDD_LDO10 */
	if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO10CTRL1,
				MAX77686_LD10CTRL1_1_8V | EN_LDO))
		return -1;

	return 0;
}
#endif

void dram_init_banksize(void)
{
	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
	gd->bd->bi_dram[0].size = get_ram_size((long *)PHYS_SDRAM_1,
							PHYS_SDRAM_1_SIZE);
	gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
	gd->bd->bi_dram[1].size = get_ram_size((long *)PHYS_SDRAM_2,
							PHYS_SDRAM_2_SIZE);
	gd->bd->bi_dram[2].start = PHYS_SDRAM_3;
	gd->bd->bi_dram[2].size = get_ram_size((long *)PHYS_SDRAM_3,
							PHYS_SDRAM_3_SIZE);
	gd->bd->bi_dram[3].start = PHYS_SDRAM_4;
	gd->bd->bi_dram[3].size = get_ram_size((long *)PHYS_SDRAM_4,
							PHYS_SDRAM_4_SIZE);
	gd->bd->bi_dram[4].start = PHYS_SDRAM_5;
	gd->bd->bi_dram[4].size = get_ram_size((long *)PHYS_SDRAM_5,
							PHYS_SDRAM_5_SIZE);
	gd->bd->bi_dram[5].start = PHYS_SDRAM_6;
	gd->bd->bi_dram[5].size = get_ram_size((long *)PHYS_SDRAM_6,
							PHYS_SDRAM_6_SIZE);
	gd->bd->bi_dram[6].start = PHYS_SDRAM_7;
	gd->bd->bi_dram[6].size = get_ram_size((long *)PHYS_SDRAM_7,
							PHYS_SDRAM_7_SIZE);
	gd->bd->bi_dram[7].start = PHYS_SDRAM_8;
	gd->bd->bi_dram[7].size = get_ram_size((long *)PHYS_SDRAM_8,
							PHYS_SDRAM_8_SIZE);
}

#ifdef CONFIG_OF_CONTROL
static int decode_sromc(const void *blob, struct fdt_sromc *config)
{
	int err;
	int node;

	node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS5_SROMC);
	if (node < 0) {
		debug("Could not find SROMC node\n");
		return node;
	}

	config->bank = fdtdec_get_int(blob, node, "bank", 0);
	config->width = fdtdec_get_int(blob, node, "width", 2);

	err = fdtdec_get_int_array(blob, node, "srom-timing", config->timing,
			FDT_SROM_TIMING_COUNT);
	if (err < 0) {
		debug("Could not decode SROMC configuration\n");
		return -FDT_ERR_NOTFOUND;
	}

	return 0;
}
#endif

int board_eth_init(bd_t *bis)
{
#ifdef CONFIG_SMC911X
	u32 smc_bw_conf, smc_bc_conf;
	struct fdt_sromc config;
	fdt_addr_t base_addr;

#ifdef CONFIG_OF_CONTROL
	int node;

	node = decode_sromc(gd->fdt_blob, &config);
	if (node < 0) {
		debug("%s: Could not find sromc configuration\n", __func__);
		return 0;
	}
	node = fdtdec_next_compatible(gd->fdt_blob, node, COMPAT_SMSC_LAN9215);
	if (node < 0) {
		debug("%s: Could not find lan9215 configuration\n", __func__);
		return 0;
	}

	/* We now have a node, so any problems from now on are errors */
	base_addr = fdtdec_get_addr(gd->fdt_blob, node, "reg");
	if (base_addr == FDT_ADDR_T_NONE) {
		debug("%s: Could not find lan9215 address\n", __func__);
		return -1;
	}
#else
	/* Non-FDT configuration - bank number and timing parameters*/
	config.bank = CONFIG_ENV_SROM_BANK;
	config.width = 2;

	config.timing[FDT_SROM_TACS] = 0x01;
	config.timing[FDT_SROM_TCOS] = 0x01;
	config.timing[FDT_SROM_TACC] = 0x06;
	config.timing[FDT_SROM_TCOH] = 0x01;
	config.timing[FDT_SROM_TAH] = 0x0C;
	config.timing[FDT_SROM_TACP] = 0x09;
	config.timing[FDT_SROM_PMC] = 0x01;
	base_addr = CONFIG_SMC911X_BASE;
#endif

	/* Ethernet needs data bus width of 16 bits */
	if (config.width != 2) {
		debug("%s: Unsupported bus width %d\n", __func__,
			config.width);
		return -1;
	}
	smc_bw_conf = SROMC_DATA16_WIDTH(config.bank)
			| SROMC_BYTE_ENABLE(config.bank);

	smc_bc_conf = SROMC_BC_TACS(config.timing[FDT_SROM_TACS])   |\
			SROMC_BC_TCOS(config.timing[FDT_SROM_TCOS]) |\
			SROMC_BC_TACC(config.timing[FDT_SROM_TACC]) |\
			SROMC_BC_TCOH(config.timing[FDT_SROM_TCOH]) |\
			SROMC_BC_TAH(config.timing[FDT_SROM_TAH])   |\
			SROMC_BC_TACP(config.timing[FDT_SROM_TACP]) |\
			SROMC_BC_PMC(config.timing[FDT_SROM_PMC]);

	/* Select and configure the SROMC bank */
	exynos_pinmux_config(PERIPH_ID_SROMC, config.bank);
	s5p_config_sromc(config.bank, smc_bw_conf, smc_bc_conf);
	return smc911x_initialize(0, base_addr);
#endif
	return 0;
}

#ifdef CONFIG_DISPLAY_BOARDINFO
int checkboard(void)
{
#ifdef CONFIG_OF_CONTROL
	const char *board_name;

	board_name = fdt_getprop(gd->fdt_blob, 0, "model", NULL);
	if (board_name == NULL)
		printf("\nUnknown Board\n");
	else
		printf("\nBoard: %s\n", board_name);
#else
	printf("\nBoard: SMDK5250\n");
#endif
	return 0;
}
#endif

#ifdef CONFIG_GENERIC_MMC
int board_mmc_init(bd_t *bis)
{
	int err;

	err = exynos_pinmux_config(PERIPH_ID_SDMMC0, PINMUX_FLAG_8BIT_MODE);
	if (err) {
		debug("SDMMC0 not configured\n");
		return err;
	}

	err = s5p_mmc_init(0, 8);
	return err;
}
#endif

static int board_uart_init(void)
{
	int err;

	err = exynos_pinmux_config(PERIPH_ID_UART0, PINMUX_FLAG_NONE);
	if (err) {
		debug("UART0 not configured\n");
		return err;
	}

	err = exynos_pinmux_config(PERIPH_ID_UART1, PINMUX_FLAG_NONE);
	if (err) {
		debug("UART1 not configured\n");
		return err;
	}

	err = exynos_pinmux_config(PERIPH_ID_UART2, PINMUX_FLAG_NONE);
	if (err) {
		debug("UART2 not configured\n");
		return err;
	}

	err = exynos_pinmux_config(PERIPH_ID_UART3, PINMUX_FLAG_NONE);
	if (err) {
		debug("UART3 not configured\n");
		return err;
	}

	return 0;
}

#ifdef CONFIG_BOARD_EARLY_INIT_F
int board_early_init_f(void)
{
	int err;
	err = board_uart_init();
	if (err) {
		debug("UART init failed\n");
		return err;
	}
#ifdef CONFIG_SYS_I2C_INIT_BOARD
	board_i2c_init(gd->fdt_blob);
#endif
	return err;
}
#endif

#ifdef CONFIG_LCD
void exynos_cfg_lcd_gpio(void)
{
	struct exynos5_gpio_part1 *gpio1 =
		(struct exynos5_gpio_part1 *) samsung_get_base_gpio_part1();

	/* For Backlight */
	s5p_gpio_cfg_pin(&gpio1->b2, 0, GPIO_OUTPUT);
	s5p_gpio_set_value(&gpio1->b2, 0, 1);

	/* LCD power on */
	s5p_gpio_cfg_pin(&gpio1->x1, 5, GPIO_OUTPUT);
	s5p_gpio_set_value(&gpio1->x1, 5, 1);

	/* Set Hotplug detect for DP */
	s5p_gpio_cfg_pin(&gpio1->x0, 7, GPIO_FUNC(0x3));
}

void exynos_set_dp_phy(unsigned int onoff)
{
	set_dp_phy_ctrl(onoff);
}

#ifndef CONFIG_OF_CONTROL
vidinfo_t panel_info = {
	.vl_freq	= 60,
	.vl_col		= 2560,
	.vl_row		= 1600,
	.vl_width	= 2560,
	.vl_height	= 1600,
	.vl_clkp	= CONFIG_SYS_LOW,
	.vl_hsp		= CONFIG_SYS_LOW,
	.vl_vsp		= CONFIG_SYS_LOW,
	.vl_dp		= CONFIG_SYS_LOW,
	.vl_bpix	= 4,	/* LCD_BPP = 2^4, for output conosle on LCD */

	/* wDP panel timing infomation */
	.vl_hspw	= 32,
	.vl_hbpd	= 80,
	.vl_hfpd	= 48,

	.vl_vspw	= 6,
	.vl_vbpd	= 37,
	.vl_vfpd	= 3,
	.vl_cmd_allow_len = 0xf,

	.win_id		= 3,
	.dual_lcd_enabled = 0,

	.init_delay	= 0,
	.power_on_delay = 0,
	.reset_delay	= 0,
	.interface_mode = FIMD_RGB_INTERFACE,
	.dp_enabled	= 1,
};

static struct edp_device_info edp_info = {
	.disp_info = {
		.h_res = 2560,
		.h_sync_width = 32,
		.h_back_porch = 80,
		.h_front_porch = 48,
		.v_res = 1600,
		.v_sync_width  = 6,
		.v_back_porch = 37,
		.v_front_porch = 3,
		.v_sync_rate = 60,
	},
	.lt_info = {
		.lt_status = DP_LT_NONE,
	},
	.video_info = {
		.master_mode = 0,
		.bist_mode = DP_DISABLE,
		.bist_pattern = NO_PATTERN,
		.h_sync_polarity = 0,
		.v_sync_polarity = 0,
		.interlaced = 0,
		.color_space = COLOR_RGB,
		.dynamic_range = VESA,
		.ycbcr_coeff = COLOR_YCBCR601,
		.color_depth = COLOR_8,
	},
};

static struct exynos_dp_platform_data dp_platform_data = {
	.edp_dev_info	= &edp_info,
};

#endif
void init_panel_info(vidinfo_t *vid)
{
#ifndef CONFIG_OF_CONTROL
	vid->rgb_mode   = MODE_RGB_P,

	exynos_set_dp_platform_data(&dp_platform_data);
#endif
}
#endif