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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 <mmc.h>
#include <fsl_esdhc.h>
#include <power/pmic.h>
#include <fsl_pmic.h>
#include "kp_id_rev.h"
#define VBUS_PWR_EN IMX_GPIO_NR(7, 8)
#define PHY_nRST IMX_GPIO_NR(7, 6)
#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;
}
u32 get_board_rev(void)
{
struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE;
struct fuse_bank *bank = &iim->bank[0];
struct fuse_bank0_regs *fuse =
(struct fuse_bank0_regs *)bank->fuse_regs;
int rev = readl(&fuse->gp[6]);
return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8;
}
#ifdef CONFIG_USB_EHCI_MX5
int board_ehci_hcd_init(int port)
{
gpio_request(VBUS_PWR_EN, "VBUS_PWR_EN");
gpio_direction_output(VBUS_PWR_EN, 1);
return 0;
}
#endif
#ifdef CONFIG_FSL_ESDHC
struct fsl_esdhc_cfg esdhc_cfg[] = {
{MMC_SDHC3_BASE_ADDR},
};
int board_mmc_getcd(struct mmc *mmc)
{
return 1; /* eMMC is always present */
}
#define SD_CMD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
PAD_CTL_PUS_100K_UP)
#define SD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | \
PAD_CTL_DSE_HIGH)
int board_mmc_init(bd_t *bis)
{
int ret;
static const iomux_v3_cfg_t sd3_pads[] = {
NEW_PAD_CTRL(MX53_PAD_PATA_RESET_B__ESDHC3_CMD,
SD_CMD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_PATA_IORDY__ESDHC3_CLK, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA8__ESDHC3_DAT0, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA9__ESDHC3_DAT1, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA10__ESDHC3_DAT2, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA11__ESDHC3_DAT3, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA0__ESDHC3_DAT4, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA1__ESDHC3_DAT5, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA2__ESDHC3_DAT6, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA3__ESDHC3_DAT7, SD_PAD_CTRL),
};
esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
imx_iomux_v3_setup_multiple_pads(sd3_pads, ARRAY_SIZE(sd3_pads));
ret = fsl_esdhc_initialize(bis, &esdhc_cfg[0]);
if (ret)
return ret;
return 0;
}
#endif
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 eth_phy_reset(void)
{
gpio_request(PHY_nRST, "PHY_nRST");
gpio_direction_output(PHY_nRST, 1);
udelay(50);
gpio_set_value(PHY_nRST, 0);
udelay(400);
gpio_set_value(PHY_nRST, 1);
udelay(50);
}
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);
eth_phy_reset();
show_eeprom();
read_board_id();
board_misc_setup();
return ret;
}
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