mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 07:34:31 +00:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
401 lines
8.7 KiB
C
401 lines
8.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2010 Samsung Electronics
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* Minkyu Kang <mk7.kang@samsung.com>
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* Kyungmin Park <kyungmin.park@samsung.com>
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*/
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#include <common.h>
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#include <spi.h>
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#include <lcd.h>
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#include <asm/io.h>
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#include <asm/gpio.h>
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#include <asm/arch/adc.h>
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#include <asm/arch/pinmux.h>
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#include <asm/arch/watchdog.h>
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#include <ld9040.h>
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#include <power/pmic.h>
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#include <usb.h>
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#include <usb/dwc2_udc.h>
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#include <asm/arch/cpu.h>
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#include <power/max8998_pmic.h>
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#include <libtizen.h>
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#include <samsung/misc.h>
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#include <usb_mass_storage.h>
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#include <asm/mach-types.h>
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DECLARE_GLOBAL_DATA_PTR;
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unsigned int board_rev;
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static int init_pmic_lcd(void);
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u32 get_board_rev(void)
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{
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return board_rev;
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}
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int exynos_power_init(void)
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{
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return init_pmic_lcd();
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}
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static int get_hwrev(void)
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{
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return board_rev & 0xFF;
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}
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static unsigned short get_adc_value(int channel)
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{
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struct s5p_adc *adc = (struct s5p_adc *)samsung_get_base_adc();
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unsigned short ret = 0;
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unsigned int reg;
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unsigned int loop = 0;
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writel(channel & 0xF, &adc->adcmux);
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writel((1 << 14) | (49 << 6), &adc->adccon);
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writel(1000 & 0xffff, &adc->adcdly);
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writel(readl(&adc->adccon) | (1 << 16), &adc->adccon); /* 12 bit */
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udelay(10);
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writel(readl(&adc->adccon) | (1 << 0), &adc->adccon); /* Enable */
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udelay(10);
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do {
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udelay(1);
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reg = readl(&adc->adccon);
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} while (!(reg & (1 << 15)) && (loop++ < 1000));
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ret = readl(&adc->adcdat0) & 0xFFF;
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return ret;
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}
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static int adc_power_control(int on)
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{
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struct udevice *dev;
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int ret;
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u8 reg;
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ret = pmic_get("max8998-pmic", &dev);
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if (ret) {
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puts("Failed to get MAX8998!\n");
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return ret;
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}
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reg = pmic_reg_read(dev, MAX8998_REG_ONOFF1);
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if (on)
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reg |= MAX8998_LDO4;
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else
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reg &= ~MAX8998_LDO4;
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ret = pmic_reg_write(dev, MAX8998_REG_ONOFF1, reg);
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if (ret) {
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puts("MAX8998 LDO setting error\n");
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return -EINVAL;
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}
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return 0;
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}
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static unsigned int get_hw_revision(void)
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{
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int hwrev, mode0, mode1;
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adc_power_control(1);
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mode0 = get_adc_value(1); /* HWREV_MODE0 */
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mode1 = get_adc_value(2); /* HWREV_MODE1 */
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/*
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* XXX Always set the default hwrev as the latest board
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* ADC = (voltage) / 3.3 * 4096
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*/
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hwrev = 3;
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#define IS_RANGE(x, min, max) ((x) > (min) && (x) < (max))
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if (IS_RANGE(mode0, 80, 200) && IS_RANGE(mode1, 80, 200))
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hwrev = 0x0; /* 0.01V 0.01V */
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if (IS_RANGE(mode0, 750, 1000) && IS_RANGE(mode1, 80, 200))
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hwrev = 0x1; /* 610mV 0.01V */
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if (IS_RANGE(mode0, 1300, 1700) && IS_RANGE(mode1, 80, 200))
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hwrev = 0x2; /* 1.16V 0.01V */
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if (IS_RANGE(mode0, 2000, 2400) && IS_RANGE(mode1, 80, 200))
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hwrev = 0x3; /* 1.79V 0.01V */
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#undef IS_RANGE
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debug("mode0: %d, mode1: %d, hwrev 0x%x\n", mode0, mode1, hwrev);
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adc_power_control(0);
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return hwrev;
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}
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static void check_hw_revision(void)
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{
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int hwrev;
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hwrev = get_hw_revision();
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board_rev |= hwrev;
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}
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#ifdef CONFIG_USB_GADGET
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static int s5pc210_phy_control(int on)
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{
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struct udevice *dev;
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int ret;
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u8 reg;
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ret = pmic_get("max8998-pmic", &dev);
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if (ret) {
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puts("Failed to get MAX8998!\n");
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return ret;
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}
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if (on) {
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reg = pmic_reg_read(dev, MAX8998_REG_BUCK_ACTIVE_DISCHARGE3);
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reg |= MAX8998_SAFEOUT1;
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ret |= pmic_reg_write(dev,
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MAX8998_REG_BUCK_ACTIVE_DISCHARGE3, reg);
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reg = pmic_reg_read(dev, MAX8998_REG_ONOFF1);
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reg |= MAX8998_LDO3;
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ret |= pmic_reg_write(dev, MAX8998_REG_ONOFF1, reg);
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reg = pmic_reg_read(dev, MAX8998_REG_ONOFF2);
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reg |= MAX8998_LDO8;
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ret |= pmic_reg_write(dev, MAX8998_REG_ONOFF2, reg);
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} else {
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reg = pmic_reg_read(dev, MAX8998_REG_ONOFF2);
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reg &= ~MAX8998_LDO8;
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ret |= pmic_reg_write(dev, MAX8998_REG_ONOFF2, reg);
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reg = pmic_reg_read(dev, MAX8998_REG_ONOFF1);
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reg &= ~MAX8998_LDO3;
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ret |= pmic_reg_write(dev, MAX8998_REG_ONOFF1, reg);
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reg = pmic_reg_read(dev, MAX8998_REG_BUCK_ACTIVE_DISCHARGE3);
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reg &= ~MAX8998_SAFEOUT1;
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ret |= pmic_reg_write(dev,
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MAX8998_REG_BUCK_ACTIVE_DISCHARGE3, reg);
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}
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if (ret) {
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puts("MAX8998 LDO setting error!\n");
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return -EINVAL;
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}
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return 0;
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}
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struct dwc2_plat_otg_data s5pc210_otg_data = {
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.phy_control = s5pc210_phy_control,
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.regs_phy = EXYNOS4_USBPHY_BASE,
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.regs_otg = EXYNOS4_USBOTG_BASE,
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.usb_phy_ctrl = EXYNOS4_USBPHY_CONTROL,
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.usb_flags = PHY0_SLEEP,
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};
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#endif
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int board_usb_init(int index, enum usb_init_type init)
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{
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debug("USB_udc_probe\n");
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return dwc2_udc_probe(&s5pc210_otg_data);
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}
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int exynos_early_init_f(void)
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{
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wdt_stop();
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return 0;
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}
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static int init_pmic_lcd(void)
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{
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struct udevice *dev;
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unsigned char val;
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int ret = 0;
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ret = pmic_get("max8998-pmic", &dev);
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if (ret) {
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puts("Failed to get MAX8998 for init_pmic_lcd()!\n");
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return ret;
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}
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/* LDO7 1.8V */
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val = 0x02; /* (1800 - 1600) / 100; */
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ret |= pmic_reg_write(dev, MAX8998_REG_LDO7, val);
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/* LDO17 3.0V */
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val = 0xe; /* (3000 - 1600) / 100; */
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ret |= pmic_reg_write(dev, MAX8998_REG_LDO17, val);
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/* Disable unneeded regulators */
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/*
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* ONOFF1
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* Buck1 ON, Buck2 OFF, Buck3 ON, Buck4 ON
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* LDO2 ON, LDO3 OFF, LDO4 OFF, LDO5 ON
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*/
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val = 0xB9;
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ret |= pmic_reg_write(dev, MAX8998_REG_ONOFF1, val);
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/* ONOFF2
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* LDO6 OFF, LDO7 ON, LDO8 OFF, LDO9 ON,
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* LDO10 OFF, LDO11 OFF, LDO12 OFF, LDO13 OFF
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*/
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val = 0x50;
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ret |= pmic_reg_write(dev, MAX8998_REG_ONOFF2, val);
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/* ONOFF3
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* LDO14 OFF, LDO15 OFF, LGO16 OFF, LDO17 OFF
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* EPWRHOLD OFF, EBATTMON OFF, ELBCNFG2 OFF, ELBCNFG1 OFF
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*/
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val = 0x00;
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ret |= pmic_reg_write(dev, MAX8998_REG_ONOFF3, val);
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if (ret) {
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puts("LCD pmic initialisation error!\n");
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return -EINVAL;
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}
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return 0;
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}
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void exynos_cfg_lcd_gpio(void)
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{
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unsigned int i, f3_end = 4;
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for (i = 0; i < 8; i++) {
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/* set GPF0,1,2[0:7] for RGB Interface and Data lines (32bit) */
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gpio_cfg_pin(EXYNOS4_GPIO_F00 + i, S5P_GPIO_FUNC(2));
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gpio_cfg_pin(EXYNOS4_GPIO_F10 + i, S5P_GPIO_FUNC(2));
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gpio_cfg_pin(EXYNOS4_GPIO_F20 + i, S5P_GPIO_FUNC(2));
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/* pull-up/down disable */
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gpio_set_pull(EXYNOS4_GPIO_F00 + i, S5P_GPIO_PULL_NONE);
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gpio_set_pull(EXYNOS4_GPIO_F10 + i, S5P_GPIO_PULL_NONE);
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gpio_set_pull(EXYNOS4_GPIO_F20 + i, S5P_GPIO_PULL_NONE);
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/* drive strength to max (24bit) */
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gpio_set_drv(EXYNOS4_GPIO_F00 + i, S5P_GPIO_DRV_4X);
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gpio_set_rate(EXYNOS4_GPIO_F00 + i, S5P_GPIO_DRV_SLOW);
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gpio_set_drv(EXYNOS4_GPIO_F10 + i, S5P_GPIO_DRV_4X);
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gpio_set_rate(EXYNOS4_GPIO_F10 + i, S5P_GPIO_DRV_SLOW);
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gpio_set_drv(EXYNOS4_GPIO_F20 + i, S5P_GPIO_DRV_4X);
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gpio_set_rate(EXYNOS4_GPIO_F00 + i, S5P_GPIO_DRV_SLOW);
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}
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for (i = EXYNOS4_GPIO_F30; i < (EXYNOS4_GPIO_F30 + f3_end); i++) {
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/* set GPF3[0:3] for RGB Interface and Data lines (32bit) */
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gpio_cfg_pin(i, S5P_GPIO_FUNC(2));
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/* pull-up/down disable */
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gpio_set_pull(i, S5P_GPIO_PULL_NONE);
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/* drive strength to max (24bit) */
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gpio_set_drv(i, S5P_GPIO_DRV_4X);
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gpio_set_rate(i, S5P_GPIO_DRV_SLOW);
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}
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/* gpio pad configuration for LCD reset. */
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gpio_request(EXYNOS4_GPIO_Y45, "lcd_reset");
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gpio_cfg_pin(EXYNOS4_GPIO_Y45, S5P_GPIO_OUTPUT);
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}
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int mipi_power(void)
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{
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return 0;
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}
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void exynos_reset_lcd(void)
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{
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gpio_set_value(EXYNOS4_GPIO_Y45, 1);
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udelay(10000);
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gpio_set_value(EXYNOS4_GPIO_Y45, 0);
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udelay(10000);
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gpio_set_value(EXYNOS4_GPIO_Y45, 1);
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udelay(100);
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}
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void exynos_lcd_power_on(void)
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{
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struct udevice *dev;
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int ret;
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u8 reg;
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ret = pmic_get("max8998-pmic", &dev);
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if (ret) {
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puts("Failed to get MAX8998!\n");
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return;
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}
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reg = pmic_reg_read(dev, MAX8998_REG_ONOFF3);
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reg |= MAX8998_LDO17;
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ret = pmic_reg_write(dev, MAX8998_REG_ONOFF3, reg);
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if (ret) {
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puts("MAX8998 LDO setting error\n");
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return;
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}
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reg = pmic_reg_read(dev, MAX8998_REG_ONOFF2);
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reg |= MAX8998_LDO7;
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ret = pmic_reg_write(dev, MAX8998_REG_ONOFF2, reg);
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if (ret) {
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puts("MAX8998 LDO setting error\n");
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return;
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}
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}
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void exynos_cfg_ldo(void)
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{
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ld9040_cfg_ldo();
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}
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void exynos_enable_ldo(unsigned int onoff)
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{
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ld9040_enable_ldo(onoff);
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}
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int exynos_init(void)
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{
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gd->bd->bi_arch_number = MACH_TYPE_UNIVERSAL_C210;
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switch (get_hwrev()) {
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case 0:
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/*
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* Set the low to enable LDO_EN
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* But when you use the test board for eMMC booting
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* you should set it HIGH since it removes the inverter
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*/
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/* MASSMEMORY_EN: XMDMDATA_6: GPE3[6] */
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gpio_request(EXYNOS4_GPIO_E36, "ldo_en");
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gpio_direction_output(EXYNOS4_GPIO_E36, 0);
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break;
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default:
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/*
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* Default reset state is High and there's no inverter
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* But set it as HIGH to ensure
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*/
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/* MASSMEMORY_EN: XMDMADDR_3: GPE1[3] */
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gpio_request(EXYNOS4_GPIO_E13, "massmemory_en");
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gpio_direction_output(EXYNOS4_GPIO_E13, 1);
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break;
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}
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check_hw_revision();
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printf("HW Revision:\t0x%x\n", board_rev);
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return 0;
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}
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#ifdef CONFIG_LCD
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void exynos_lcd_misc_init(vidinfo_t *vid)
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{
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#ifdef CONFIG_TIZEN
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get_tizen_logo_info(vid);
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#endif
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/* for LD9040. */
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vid->pclk_name = 1; /* MPLL */
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vid->sclk_div = 1;
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env_set("lcdinfo", "lcd=ld9040");
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}
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#endif
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