mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 18:59:44 +00:00
414ba7cda3
As EHCI on i.MX5 has been converted to driver model, the board specific code, necessary for VBUS USB power supply setup is not needed anymore. Signed-off-by: Lukasz Majewski <lukma@denx.de>
151 lines
2.7 KiB
C
151 lines
2.7 KiB
C
// 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 <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;
|
|
}
|