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https://github.com/AsahiLinux/u-boot
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55410089cb
This commits adds support for configuring a a bitbang i2c controller, which is used on some boards to configure the LCD panel (via i2c). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
277 lines
7 KiB
C
277 lines
7 KiB
C
/*
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* (C) Copyright 2012-2013 Henrik Nordstrom <henrik@henriknordstrom.net>
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* (C) Copyright 2013 Luke Kenneth Casson Leighton <lkcl@lkcl.net>
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*
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* (C) Copyright 2007-2011
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
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* Tom Cubie <tangliang@allwinnertech.com>
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*
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* Some board init for the Allwinner A10-evb board.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <mmc.h>
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#ifdef CONFIG_AXP152_POWER
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#include <axp152.h>
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#endif
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#ifdef CONFIG_AXP209_POWER
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#include <axp209.h>
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#endif
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#ifdef CONFIG_AXP221_POWER
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#include <axp221.h>
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#endif
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#include <asm/arch/clock.h>
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#include <asm/arch/cpu.h>
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#include <asm/arch/display.h>
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#include <asm/arch/dram.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/mmc.h>
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#include <asm/arch/usbc.h>
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#include <asm/io.h>
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#include <linux/usb/musb.h>
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#include <net.h>
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#if defined CONFIG_VIDEO_LCD_PANEL_I2C && !(defined CONFIG_SPL_BUILD)
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/* So that we can use pin names in Kconfig and sunxi_name_to_gpio() */
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int soft_i2c_gpio_sda;
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int soft_i2c_gpio_scl;
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#endif
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DECLARE_GLOBAL_DATA_PTR;
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/* add board specific code here */
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int board_init(void)
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{
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int id_pfr1;
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gd->bd->bi_boot_params = (PHYS_SDRAM_0 + 0x100);
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asm volatile("mrc p15, 0, %0, c0, c1, 1" : "=r"(id_pfr1));
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debug("id_pfr1: 0x%08x\n", id_pfr1);
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/* Generic Timer Extension available? */
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if ((id_pfr1 >> 16) & 0xf) {
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debug("Setting CNTFRQ\n");
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/* CNTFRQ == 24 MHz */
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asm volatile("mcr p15, 0, %0, c14, c0, 0" : : "r"(24000000));
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}
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return 0;
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}
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int dram_init(void)
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{
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gd->ram_size = get_ram_size((long *)PHYS_SDRAM_0, PHYS_SDRAM_0_SIZE);
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return 0;
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}
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#ifdef CONFIG_GENERIC_MMC
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static void mmc_pinmux_setup(int sdc)
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{
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unsigned int pin;
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switch (sdc) {
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case 0:
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/* D1-PF0, D0-PF1, CLK-PF2, CMD-PF3, D3-PF4, D4-PF5 */
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for (pin = SUNXI_GPF(0); pin <= SUNXI_GPF(5); pin++) {
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sunxi_gpio_set_cfgpin(pin, SUNXI_GPF0_SDC0);
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sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP);
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sunxi_gpio_set_drv(pin, 2);
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}
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break;
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case 1:
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/* CMD-PG3, CLK-PG4, D0~D3-PG5-8 */
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for (pin = SUNXI_GPG(3); pin <= SUNXI_GPG(8); pin++) {
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sunxi_gpio_set_cfgpin(pin, SUN5I_GPG3_SDC1);
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sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP);
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sunxi_gpio_set_drv(pin, 2);
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}
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break;
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case 2:
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/* CMD-PC6, CLK-PC7, D0-PC8, D1-PC9, D2-PC10, D3-PC11 */
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for (pin = SUNXI_GPC(6); pin <= SUNXI_GPC(11); pin++) {
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sunxi_gpio_set_cfgpin(pin, SUNXI_GPC6_SDC2);
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sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP);
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sunxi_gpio_set_drv(pin, 2);
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}
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break;
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case 3:
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/* CMD-PI4, CLK-PI5, D0~D3-PI6~9 : 2 */
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for (pin = SUNXI_GPI(4); pin <= SUNXI_GPI(9); pin++) {
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sunxi_gpio_set_cfgpin(pin, SUN4I_GPI4_SDC3);
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sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP);
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sunxi_gpio_set_drv(pin, 2);
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}
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break;
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default:
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printf("sunxi: invalid MMC slot %d for pinmux setup\n", sdc);
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break;
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}
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}
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int board_mmc_init(bd_t *bis)
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{
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__maybe_unused struct mmc *mmc0, *mmc1;
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__maybe_unused char buf[512];
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mmc_pinmux_setup(CONFIG_MMC_SUNXI_SLOT);
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mmc0 = sunxi_mmc_init(CONFIG_MMC_SUNXI_SLOT);
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if (!mmc0)
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return -1;
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#if CONFIG_MMC_SUNXI_SLOT_EXTRA != -1
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mmc_pinmux_setup(CONFIG_MMC_SUNXI_SLOT_EXTRA);
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mmc1 = sunxi_mmc_init(CONFIG_MMC_SUNXI_SLOT_EXTRA);
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if (!mmc1)
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return -1;
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#endif
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#if CONFIG_MMC_SUNXI_SLOT == 0 && CONFIG_MMC_SUNXI_SLOT_EXTRA == 2
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/*
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* Both mmc0 and mmc2 are bootable, figure out where we're booting
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* from. Try mmc0 first, just like the brom does.
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*/
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if (mmc_getcd(mmc0) && mmc_init(mmc0) == 0 &&
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mmc0->block_dev.block_read(0, 16, 1, buf) == 1) {
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buf[12] = 0;
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if (strcmp(&buf[4], "eGON.BT0") == 0)
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return 0;
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}
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/* no bootable card in mmc0, so we must be booting from mmc2, swap */
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mmc0->block_dev.dev = 1;
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mmc1->block_dev.dev = 0;
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#endif
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return 0;
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}
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#endif
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void i2c_init_board(void)
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{
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sunxi_gpio_set_cfgpin(SUNXI_GPB(0), SUNXI_GPB0_TWI0);
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sunxi_gpio_set_cfgpin(SUNXI_GPB(1), SUNXI_GPB0_TWI0);
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clock_twi_onoff(0, 1);
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#if defined CONFIG_VIDEO_LCD_PANEL_I2C && !(defined CONFIG_SPL_BUILD)
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soft_i2c_gpio_sda = sunxi_name_to_gpio(CONFIG_VIDEO_LCD_PANEL_I2C_SDA);
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soft_i2c_gpio_scl = sunxi_name_to_gpio(CONFIG_VIDEO_LCD_PANEL_I2C_SCL);
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#endif
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}
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#ifdef CONFIG_SPL_BUILD
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void sunxi_board_init(void)
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{
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int power_failed = 0;
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unsigned long ramsize;
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#ifdef CONFIG_AXP152_POWER
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power_failed = axp152_init();
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power_failed |= axp152_set_dcdc2(1400);
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power_failed |= axp152_set_dcdc3(1500);
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power_failed |= axp152_set_dcdc4(1250);
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power_failed |= axp152_set_ldo2(3000);
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#endif
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#ifdef CONFIG_AXP209_POWER
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power_failed |= axp209_init();
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power_failed |= axp209_set_dcdc2(1400);
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power_failed |= axp209_set_dcdc3(1250);
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power_failed |= axp209_set_ldo2(3000);
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power_failed |= axp209_set_ldo3(2800);
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power_failed |= axp209_set_ldo4(2800);
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#endif
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#ifdef CONFIG_AXP221_POWER
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power_failed = axp221_init();
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power_failed |= axp221_set_dcdc1(CONFIG_AXP221_DCDC1_VOLT);
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power_failed |= axp221_set_dcdc2(1200); /* A31:VDD-GPU, A23:VDD-SYS */
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power_failed |= axp221_set_dcdc3(1200); /* VDD-CPU */
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#ifdef CONFIG_MACH_SUN6I
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power_failed |= axp221_set_dcdc4(1200); /* A31:VDD-SYS */
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#else
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power_failed |= axp221_set_dcdc4(0); /* A23:unused */
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#endif
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power_failed |= axp221_set_dcdc5(1500); /* VCC-DRAM */
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power_failed |= axp221_set_dldo1(CONFIG_AXP221_DLDO1_VOLT);
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power_failed |= axp221_set_dldo4(CONFIG_AXP221_DLDO4_VOLT);
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power_failed |= axp221_set_aldo1(CONFIG_AXP221_ALDO1_VOLT);
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power_failed |= axp221_set_aldo2(CONFIG_AXP221_ALDO2_VOLT);
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power_failed |= axp221_set_aldo3(CONFIG_AXP221_ALDO3_VOLT);
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power_failed |= axp221_set_eldo(3, CONFIG_AXP221_ELDO3_VOLT);
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#endif
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printf("DRAM:");
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ramsize = sunxi_dram_init();
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printf(" %lu MiB\n", ramsize >> 20);
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if (!ramsize)
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hang();
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/*
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* Only clock up the CPU to full speed if we are reasonably
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* assured it's being powered with suitable core voltage
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*/
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if (!power_failed)
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clock_set_pll1(CONFIG_CLK_FULL_SPEED);
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else
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printf("Failed to set core voltage! Can't set CPU frequency\n");
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}
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#endif
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#if defined(CONFIG_MUSB_HOST) || defined(CONFIG_MUSB_GADGET)
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static struct musb_hdrc_config musb_config = {
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.multipoint = 1,
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.dyn_fifo = 1,
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.num_eps = 6,
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.ram_bits = 11,
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};
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static struct musb_hdrc_platform_data musb_plat = {
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#if defined(CONFIG_MUSB_HOST)
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.mode = MUSB_HOST,
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#else
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.mode = MUSB_PERIPHERAL,
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#endif
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.config = &musb_config,
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.power = 250,
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.platform_ops = &sunxi_musb_ops,
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};
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#endif
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#ifdef CONFIG_MISC_INIT_R
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int misc_init_r(void)
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{
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unsigned int sid[4];
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if (!getenv("ethaddr") && sunxi_get_sid(sid) == 0 &&
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sid[0] != 0 && sid[3] != 0) {
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uint8_t mac_addr[6];
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mac_addr[0] = 0x02; /* Non OUI / registered MAC address */
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mac_addr[1] = (sid[0] >> 0) & 0xff;
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mac_addr[2] = (sid[3] >> 24) & 0xff;
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mac_addr[3] = (sid[3] >> 16) & 0xff;
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mac_addr[4] = (sid[3] >> 8) & 0xff;
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mac_addr[5] = (sid[3] >> 0) & 0xff;
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eth_setenv_enetaddr("ethaddr", mac_addr);
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}
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#if defined(CONFIG_MUSB_HOST) || defined(CONFIG_MUSB_GADGET)
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musb_register(&musb_plat, NULL, (void *)SUNXI_USB0_BASE);
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#endif
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return 0;
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}
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#endif
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#ifdef CONFIG_OF_BOARD_SETUP
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int ft_board_setup(void *blob, bd_t *bd)
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{
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#ifdef CONFIG_VIDEO_DT_SIMPLEFB
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return sunxi_simplefb_setup(blob);
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#endif
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}
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#endif /* CONFIG_OF_BOARD_SETUP */
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