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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2018
- * Lukasz Majewski, DENX Software Engineering, lukma@denx.de
- */
- #include <common.h>
- #include <asm/io.h>
- #include <asm/arch/imx-regs.h>
- #include <asm/arch/sys_proto.h>
- #include <asm/arch/crm_regs.h>
- #include <asm/arch/clock.h>
- #include <asm/arch/iomux-mx53.h>
- #include <asm/arch/clock.h>
- #include <asm/gpio.h>
- #include <env.h>
- #include <power/pmic.h>
- #include <fsl_pmic.h>
- #include "kp_id_rev.h"
- #define BOOSTER_OFF IMX_GPIO_NR(2, 23)
- #define LCD_BACKLIGHT IMX_GPIO_NR(1, 1)
- #define KEY1 IMX_GPIO_NR(2, 26)
- DECLARE_GLOBAL_DATA_PTR;
- int dram_init(void)
- {
- u32 size;
- size = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
- gd->ram_size = size;
- return 0;
- }
- int dram_init_banksize(void)
- {
- gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
- gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
- return 0;
- }
- static int power_init(void)
- {
- struct udevice *dev;
- int ret;
- ret = pmic_get("mc34708", &dev);
- if (ret) {
- printf("%s: mc34708 not found !\n", __func__);
- return ret;
- }
- /* Set VDDGP to 1.110V for 800 MHz on SW1 */
- pmic_clrsetbits(dev, REG_SW_0, SWx_VOLT_MASK_MC34708,
- SWx_1_110V_MC34708);
- /* Set VCC as 1.30V on SW2 */
- pmic_clrsetbits(dev, REG_SW_1, SWx_VOLT_MASK_MC34708,
- SWx_1_300V_MC34708);
- /* Set global reset timer to 4s */
- pmic_clrsetbits(dev, REG_POWER_CTL2, TIMER_MASK_MC34708,
- TIMER_4S_MC34708);
- return ret;
- }
- static void setup_clocks(void)
- {
- int ret;
- u32 ref_clk = MXC_HCLK;
- /*
- * CPU clock set to 800MHz and DDR to 400MHz
- */
- ret = mxc_set_clock(ref_clk, 800, MXC_ARM_CLK);
- if (ret)
- printf("CPU: Switch CPU clock to 800MHZ failed\n");
- ret = mxc_set_clock(ref_clk, 400, MXC_PERIPH_CLK);
- ret |= mxc_set_clock(ref_clk, 400, MXC_DDR_CLK);
- if (ret)
- printf("CPU: Switch DDR clock to 400MHz failed\n");
- }
- static void setup_ups(void)
- {
- gpio_request(BOOSTER_OFF, "BOOSTER_OFF");
- gpio_direction_output(BOOSTER_OFF, 0);
- }
- int board_early_init_f(void)
- {
- return 0;
- }
- /*
- * Do not overwrite the console
- * Use always serial for U-Boot console
- */
- int overwrite_console(void)
- {
- return 1;
- }
- int board_init(void)
- {
- gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
- return 0;
- }
- void board_disable_display(void)
- {
- gpio_request(LCD_BACKLIGHT, "LCD_BACKLIGHT");
- gpio_direction_output(LCD_BACKLIGHT, 0);
- }
- void board_misc_setup(void)
- {
- gpio_request(KEY1, "KEY1_GPIO");
- gpio_direction_input(KEY1);
- if (gpio_get_value(KEY1))
- env_set("key1", "off");
- else
- env_set("key1", "on");
- }
- int board_late_init(void)
- {
- int ret = 0;
- board_disable_display();
- setup_ups();
- if (!power_init())
- setup_clocks();
- ret = read_eeprom();
- if (ret)
- printf("Error %d reading EEPROM content!\n", ret);
- show_eeprom();
- read_board_id();
- board_misc_setup();
- return ret;
- }
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