| /* |
| * 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/s3c_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 s3c_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 s3c_udc_probe(&s5pc210_otg_data); |
| } |
| |
| int exynos_early_init_f(void) |
| { |
| wdt_stop(); |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_SOFT_SPI |
| static void soft_spi_init(void) |
| { |
| gpio_direction_output(CONFIG_SOFT_SPI_GPIO_SCLK, |
| CONFIG_SOFT_SPI_MODE & SPI_CPOL); |
| gpio_direction_output(CONFIG_SOFT_SPI_GPIO_MOSI, 1); |
| gpio_direction_input(CONFIG_SOFT_SPI_GPIO_MISO); |
| gpio_direction_output(CONFIG_SOFT_SPI_GPIO_CS, |
| !(CONFIG_SOFT_SPI_MODE & SPI_CS_HIGH)); |
| } |
| |
| void spi_cs_activate(struct spi_slave *slave) |
| { |
| gpio_set_value(CONFIG_SOFT_SPI_GPIO_CS, |
| !(CONFIG_SOFT_SPI_MODE & SPI_CS_HIGH)); |
| SPI_SCL(1); |
| gpio_set_value(CONFIG_SOFT_SPI_GPIO_CS, |
| CONFIG_SOFT_SPI_MODE & SPI_CS_HIGH); |
| } |
| |
| void spi_cs_deactivate(struct spi_slave *slave) |
| { |
| gpio_set_value(CONFIG_SOFT_SPI_GPIO_CS, |
| !(CONFIG_SOFT_SPI_MODE & SPI_CS_HIGH)); |
| } |
| |
| int spi_cs_is_valid(unsigned int bus, unsigned int cs) |
| { |
| return bus == 0 && cs == 0; |
| } |
| |
| void universal_spi_scl(int bit) |
| { |
| gpio_set_value(CONFIG_SOFT_SPI_GPIO_SCLK, bit); |
| } |
| |
| void universal_spi_sda(int bit) |
| { |
| gpio_set_value(CONFIG_SOFT_SPI_GPIO_MOSI, bit); |
| } |
| |
| int universal_spi_read(void) |
| { |
| return gpio_get_value(CONFIG_SOFT_SPI_GPIO_MISO); |
| } |
| #endif |
| |
| 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); |
| |
| spi_init(); |
| } |
| |
| 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) |
| { |
| 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; |
| } |
| |
| #ifdef CONFIG_SOFT_SPI |
| soft_spi_init(); |
| #endif |
| check_hw_revision(); |
| printf("HW Revision:\t0x%x\n", board_rev); |
| |
| return 0; |
| } |
| |
| 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"); |
| } |