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u-boot/board/samsung/universal_c210/universal.c
Simon Glass ea743e659f exynos: Disable LCD display for boards we can't convert 
Some boards have the LCD enabled but I cannot test operation for the driver
model conversion. Disable the LCD on these to avoid build errors.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2016-05-25 13:25:18 +09:00

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/*
* Copyright (C) 2010 Samsung Electronics
* Minkyu Kang <mk7.kang@samsung.com>
* Kyungmin Park <kyungmin.park@samsung.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <spi.h>
#include <lcd.h>
#include <asm/io.h>
#include <asm/gpio.h>
#include <asm/arch/adc.h>
#include <asm/arch/pinmux.h>
#include <asm/arch/watchdog.h>
#include <ld9040.h>
#include <power/pmic.h>
#include <usb.h>
#include <usb/dwc2_udc.h>
#include <asm/arch/cpu.h>
#include <power/max8998_pmic.h>
#include <libtizen.h>
#include <samsung/misc.h>
#include <usb_mass_storage.h>
DECLARE_GLOBAL_DATA_PTR;
unsigned int board_rev;
u32 get_board_rev(void)
{
return board_rev;
}
static int get_hwrev(void)
{
return board_rev & 0xFF;
}
static void init_pmic_lcd(void);
int exynos_power_init(void)
{
int ret;
/*
* For PMIC the I2C bus is named as I2C5, but it is connected
* to logical I2C adapter 0
*/
ret = pmic_init(I2C_0);
if (ret)
return ret;
init_pmic_lcd();
return 0;
}
static unsigned short get_adc_value(int channel)
{
struct s5p_adc *adc = (struct s5p_adc *)samsung_get_base_adc();
unsigned short ret = 0;
unsigned int reg;
unsigned int loop = 0;
writel(channel & 0xF, &adc->adcmux);
writel((1 << 14) | (49 << 6), &adc->adccon);
writel(1000 & 0xffff, &adc->adcdly);
writel(readl(&adc->adccon) | (1 << 16), &adc->adccon); /* 12 bit */
udelay(10);
writel(readl(&adc->adccon) | (1 << 0), &adc->adccon); /* Enable */
udelay(10);
do {
udelay(1);
reg = readl(&adc->adccon);
} while (!(reg & (1 << 15)) && (loop++ < 1000));
ret = readl(&adc->adcdat0) & 0xFFF;
return ret;
}
static int adc_power_control(int on)
{
int ret;
struct pmic *p = pmic_get("MAX8998_PMIC");
if (!p)
return -ENODEV;
if (pmic_probe(p))
return -1;
ret = pmic_set_output(p,
MAX8998_REG_ONOFF1,
MAX8998_LDO4, !!on);
return ret;
}
static unsigned int get_hw_revision(void)
{
int hwrev, mode0, mode1;
adc_power_control(1);
mode0 = get_adc_value(1); /* HWREV_MODE0 */
mode1 = get_adc_value(2); /* HWREV_MODE1 */
/*
* XXX Always set the default hwrev as the latest board
* ADC = (voltage) / 3.3 * 4096
*/
hwrev = 3;
#define IS_RANGE(x, min, max) ((x) > (min) && (x) < (max))
if (IS_RANGE(mode0, 80, 200) && IS_RANGE(mode1, 80, 200))
hwrev = 0x0; /* 0.01V 0.01V */
if (IS_RANGE(mode0, 750, 1000) && IS_RANGE(mode1, 80, 200))
hwrev = 0x1; /* 610mV 0.01V */
if (IS_RANGE(mode0, 1300, 1700) && IS_RANGE(mode1, 80, 200))
hwrev = 0x2; /* 1.16V 0.01V */
if (IS_RANGE(mode0, 2000, 2400) && IS_RANGE(mode1, 80, 200))
hwrev = 0x3; /* 1.79V 0.01V */
#undef IS_RANGE
debug("mode0: %d, mode1: %d, hwrev 0x%x\n", mode0, mode1, hwrev);
adc_power_control(0);
return hwrev;
}
static void check_hw_revision(void)
{
int hwrev;
hwrev = get_hw_revision();
board_rev |= hwrev;
}
#ifdef CONFIG_USB_GADGET
static int s5pc210_phy_control(int on)
{
int ret = 0;
struct pmic *p = pmic_get("MAX8998_PMIC");
if (!p)
return -ENODEV;
if (pmic_probe(p))
return -1;
if (on) {
ret |= pmic_set_output(p,
MAX8998_REG_BUCK_ACTIVE_DISCHARGE3,
MAX8998_SAFEOUT1, LDO_ON);
ret |= pmic_set_output(p, MAX8998_REG_ONOFF1,
MAX8998_LDO3, LDO_ON);
ret |= pmic_set_output(p, MAX8998_REG_ONOFF2,
MAX8998_LDO8, LDO_ON);
} else {
ret |= pmic_set_output(p, MAX8998_REG_ONOFF2,
MAX8998_LDO8, LDO_OFF);
ret |= pmic_set_output(p, MAX8998_REG_ONOFF1,
MAX8998_LDO3, LDO_OFF);
ret |= pmic_set_output(p,
MAX8998_REG_BUCK_ACTIVE_DISCHARGE3,
MAX8998_SAFEOUT1, LDO_OFF);
}
if (ret) {
puts("MAX8998 LDO setting error!\n");
return -1;
}
return 0;
}
struct dwc2_plat_otg_data s5pc210_otg_data = {
.phy_control = s5pc210_phy_control,
.regs_phy = EXYNOS4_USBPHY_BASE,
.regs_otg = EXYNOS4_USBOTG_BASE,
.usb_phy_ctrl = EXYNOS4_USBPHY_CONTROL,
.usb_flags = PHY0_SLEEP,
};
#endif
int board_usb_init(int index, enum usb_init_type init)
{
debug("USB_udc_probe\n");
return dwc2_udc_probe(&s5pc210_otg_data);
}
int exynos_early_init_f(void)
{
wdt_stop();
return 0;
}
static void init_pmic_lcd(void)
{
unsigned char val;
int ret = 0;
struct pmic *p = pmic_get("MAX8998_PMIC");
if (!p)
return;
if (pmic_probe(p))
return;
/* LDO7 1.8V */
val = 0x02; /* (1800 - 1600) / 100; */
ret |= pmic_reg_write(p, MAX8998_REG_LDO7, val);
/* LDO17 3.0V */
val = 0xe; /* (3000 - 1600) / 100; */
ret |= pmic_reg_write(p, MAX8998_REG_LDO17, val);
/* Disable unneeded regulators */
/*
* ONOFF1
* Buck1 ON, Buck2 OFF, Buck3 ON, Buck4 ON
* LDO2 ON, LDO3 OFF, LDO4 OFF, LDO5 ON
*/
val = 0xB9;
ret |= pmic_reg_write(p, MAX8998_REG_ONOFF1, val);
/* ONOFF2
* LDO6 OFF, LDO7 ON, LDO8 OFF, LDO9 ON,
* LDO10 OFF, LDO11 OFF, LDO12 OFF, LDO13 OFF
*/
val = 0x50;
ret |= pmic_reg_write(p, MAX8998_REG_ONOFF2, val);
/* ONOFF3
* LDO14 OFF, LDO15 OFF, LGO16 OFF, LDO17 OFF
* EPWRHOLD OFF, EBATTMON OFF, ELBCNFG2 OFF, ELBCNFG1 OFF
*/
val = 0x00;
ret |= pmic_reg_write(p, MAX8998_REG_ONOFF3, val);
if (ret)
puts("LCD pmic initialisation error!\n");
}
void exynos_cfg_lcd_gpio(void)
{
unsigned int i, f3_end = 4;
for (i = 0; i < 8; i++) {
/* set GPF0,1,2[0:7] for RGB Interface and Data lines (32bit) */
gpio_cfg_pin(EXYNOS4_GPIO_F00 + i, S5P_GPIO_FUNC(2));
gpio_cfg_pin(EXYNOS4_GPIO_F10 + i, S5P_GPIO_FUNC(2));
gpio_cfg_pin(EXYNOS4_GPIO_F20 + i, S5P_GPIO_FUNC(2));
/* pull-up/down disable */
gpio_set_pull(EXYNOS4_GPIO_F00 + i, S5P_GPIO_PULL_NONE);
gpio_set_pull(EXYNOS4_GPIO_F10 + i, S5P_GPIO_PULL_NONE);
gpio_set_pull(EXYNOS4_GPIO_F20 + i, S5P_GPIO_PULL_NONE);
/* drive strength to max (24bit) */
gpio_set_drv(EXYNOS4_GPIO_F00 + i, S5P_GPIO_DRV_4X);
gpio_set_rate(EXYNOS4_GPIO_F00 + i, S5P_GPIO_DRV_SLOW);
gpio_set_drv(EXYNOS4_GPIO_F10 + i, S5P_GPIO_DRV_4X);
gpio_set_rate(EXYNOS4_GPIO_F10 + i, S5P_GPIO_DRV_SLOW);
gpio_set_drv(EXYNOS4_GPIO_F20 + i, S5P_GPIO_DRV_4X);
gpio_set_rate(EXYNOS4_GPIO_F00 + i, S5P_GPIO_DRV_SLOW);
}
for (i = EXYNOS4_GPIO_F30; i < (EXYNOS4_GPIO_F30 + f3_end); i++) {
/* set GPF3[0:3] for RGB Interface and Data lines (32bit) */
gpio_cfg_pin(i, S5P_GPIO_FUNC(2));
/* pull-up/down disable */
gpio_set_pull(i, S5P_GPIO_PULL_NONE);
/* drive strength to max (24bit) */
gpio_set_drv(i, S5P_GPIO_DRV_4X);
gpio_set_rate(i, S5P_GPIO_DRV_SLOW);
}
/* gpio pad configuration for LCD reset. */
gpio_request(EXYNOS4_GPIO_Y45, "lcd_reset");
gpio_cfg_pin(EXYNOS4_GPIO_Y45, S5P_GPIO_OUTPUT);
}
int mipi_power(void)
{
return 0;
}
void exynos_reset_lcd(void)
{
gpio_set_value(EXYNOS4_GPIO_Y45, 1);
udelay(10000);
gpio_set_value(EXYNOS4_GPIO_Y45, 0);
udelay(10000);
gpio_set_value(EXYNOS4_GPIO_Y45, 1);
udelay(100);
}
void exynos_lcd_power_on(void)
{
struct pmic *p = pmic_get("MAX8998_PMIC");
if (!p)
return;
if (pmic_probe(p))
return;
pmic_set_output(p, MAX8998_REG_ONOFF3, MAX8998_LDO17, LDO_ON);
pmic_set_output(p, MAX8998_REG_ONOFF2, MAX8998_LDO7, LDO_ON);
}
void exynos_cfg_ldo(void)
{
ld9040_cfg_ldo();
}
void exynos_enable_ldo(unsigned int onoff)
{
ld9040_enable_ldo(onoff);
}
int exynos_init(void)
{
char buf[16];
gd->bd->bi_arch_number = MACH_TYPE_UNIVERSAL_C210;
switch (get_hwrev()) {
case 0:
/*
* Set the low to enable LDO_EN
* But when you use the test board for eMMC booting
* you should set it HIGH since it removes the inverter
*/
/* MASSMEMORY_EN: XMDMDATA_6: GPE3[6] */
gpio_request(EXYNOS4_GPIO_E36, "ldo_en");
gpio_direction_output(EXYNOS4_GPIO_E36, 0);
break;
default:
/*
* Default reset state is High and there's no inverter
* But set it as HIGH to ensure
*/
/* MASSMEMORY_EN: XMDMADDR_3: GPE1[3] */
gpio_request(EXYNOS4_GPIO_E13, "massmemory_en");
gpio_direction_output(EXYNOS4_GPIO_E13, 1);
break;
}
/* Request soft I2C gpios */
strcpy(buf, "soft_i2c_scl");
gpio_request(CONFIG_SOFT_I2C_GPIO_SCL, buf);
strcpy(buf, "soft_i2c_sda");
gpio_request(CONFIG_SOFT_I2C_GPIO_SDA, buf);
check_hw_revision();
printf("HW Revision:\t0x%x\n", board_rev);
return 0;
}
#ifdef CONFIG_LCD
void exynos_lcd_misc_init(vidinfo_t *vid)
{
#ifdef CONFIG_TIZEN
get_tizen_logo_info(vid);
#endif
/* for LD9040. */
vid->pclk_name = 1; /* MPLL */
vid->sclk_div = 1;
setenv("lcdinfo", "lcd=ld9040");
}
#endif
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