--- /dev/null
+/*
+ * 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/gpio.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;
+
+struct exynos4_gpio_part1 *gpio1;
+struct exynos4_gpio_part2 *gpio2;
+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) */
+ s5p_gpio_cfg_pin(&gpio1->f0, i, GPIO_FUNC(2));
+ s5p_gpio_cfg_pin(&gpio1->f1, i, GPIO_FUNC(2));
+ s5p_gpio_cfg_pin(&gpio1->f2, i, GPIO_FUNC(2));
+ /* pull-up/down disable */
+ s5p_gpio_set_pull(&gpio1->f0, i, GPIO_PULL_NONE);
+ s5p_gpio_set_pull(&gpio1->f1, i, GPIO_PULL_NONE);
+ s5p_gpio_set_pull(&gpio1->f2, i, GPIO_PULL_NONE);
+
+ /* drive strength to max (24bit) */
+ s5p_gpio_set_drv(&gpio1->f0, i, GPIO_DRV_4X);
+ s5p_gpio_set_rate(&gpio1->f0, i, GPIO_DRV_SLOW);
+ s5p_gpio_set_drv(&gpio1->f1, i, GPIO_DRV_4X);
+ s5p_gpio_set_rate(&gpio1->f1, i, GPIO_DRV_SLOW);
+ s5p_gpio_set_drv(&gpio1->f2, i, GPIO_DRV_4X);
+ s5p_gpio_set_rate(&gpio1->f0, i, GPIO_DRV_SLOW);
+ }
+
+ for (i = 0; i < f3_end; i++) {
+ /* set GPF3[0:3] for RGB Interface and Data lines (32bit) */
+ s5p_gpio_cfg_pin(&gpio1->f3, i, GPIO_FUNC(2));
+ /* pull-up/down disable */
+ s5p_gpio_set_pull(&gpio1->f3, i, GPIO_PULL_NONE);
+ /* drive strength to max (24bit) */
+ s5p_gpio_set_drv(&gpio1->f3, i, GPIO_DRV_4X);
+ s5p_gpio_set_rate(&gpio1->f3, i, GPIO_DRV_SLOW);
+ }
+
+ /* gpio pad configuration for LCD reset. */
+ s5p_gpio_cfg_pin(&gpio2->y4, 5, GPIO_OUTPUT);
+
+ spi_init();
+}
+
+int mipi_power(void)
+{
+ return 0;
+}
+
+void exynos_reset_lcd(void)
+{
+ s5p_gpio_set_value(&gpio2->y4, 5, 1);
+ udelay(10000);
+ s5p_gpio_set_value(&gpio2->y4, 5, 0);
+ udelay(10000);
+ s5p_gpio_set_value(&gpio2->y4, 5, 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)
+{
+ gpio1 = (struct exynos4_gpio_part1 *) EXYNOS4_GPIO_PART1_BASE;
+ gpio2 = (struct exynos4_gpio_part2 *) EXYNOS4_GPIO_PART2_BASE;
+
+ 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] */
+ s5p_gpio_direction_output(&gpio1->e3, 6, 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] */
+ s5p_gpio_direction_output(&gpio1->e1, 3, 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");
+}
Code Review / kvmfornfv.git / blobdiff