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// SPDX-License-Identifier: GPL-2.0+
#include "pitx_misc.h"
#include <common.h>
#include <efi.h>
#include <efi_loader.h>
#include <init.h>
#include <mmc.h>
#include <miiphy.h>
#include <asm/arch/clock.h>
#include <asm/arch/imx8mq_pins.h>
#include <asm/arch/sys_proto.h>
#include <asm-generic/gpio.h>
#include <asm/mach-imx/gpio.h>
#include <asm/mach-imx/iomux-v3.h>
#include <linux/delay.h>
#include <linux/kernel.h>
DECLARE_GLOBAL_DATA_PTR;
#define UART_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_FSEL1)
#define WDOG_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_HYS | PAD_CTL_PUE)
static iomux_v3_cfg_t const wdog_pads[] = {
IMX8MQ_PAD_GPIO1_IO02__WDOG1_WDOG_B | MUX_PAD_CTRL(WDOG_PAD_CTRL),
};
static iomux_v3_cfg_t const uart_pads[] = {
IMX8MQ_PAD_UART3_RXD__UART3_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
IMX8MQ_PAD_UART3_TXD__UART3_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
IMX8MQ_PAD_ECSPI1_SS0__UART3_RTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
IMX8MQ_PAD_ECSPI1_MISO__UART3_CTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
};
#if IS_ENABLED(CONFIG_EFI_HAVE_CAPSULE_SUPPORT)
struct efi_fw_image fw_images[] = {
{
.image_type_id = KONTRON_PITX_IMX8M_FIT_IMAGE_GUID,
.fw_name = u"KONTRON-PITX-IMX8M-UBOOT",
.image_index = 1,
},
};
struct efi_capsule_update_info update_info = {
.dfu_string = "mmc 0=flash-bin raw 0x42 0x1000 mmcpart 1",
.num_images = ARRAY_SIZE(fw_images),
.images = fw_images,
};
#endif /* EFI_HAVE_CAPSULE_SUPPORT */
int board_early_init_f(void)
{
struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR;
imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
set_wdog_reset(wdog);
imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
return 0;
}
int board_phys_sdram_size(phys_size_t *memsize)
{
int variant = 0;
variant = get_pitx_board_variant();
switch(variant) {
case 2:
*memsize = 0x80000000;
break;
case 3:
*memsize = 0x100000000;
break;
default:
printf("Unknown DDR type!!!\n");
*memsize = 0x40000000;
break;
}
debug("Memsize: %d MiB\n", (int)(*memsize >> 20));
return 0;
}
#ifdef CONFIG_FEC_MXC
#define FEC_RST_PAD IMX_GPIO_NR(1, 11)
static iomux_v3_cfg_t const fec1_rst_pads[] = {
IMX8MQ_PAD_GPIO1_IO11__GPIO1_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
static void setup_fec(void)
{
imx_iomux_v3_setup_multiple_pads(fec1_rst_pads,
ARRAY_SIZE(fec1_rst_pads));
}
int board_phy_config(struct phy_device *phydev)
{
unsigned int val;
/*
* Set LED configuration register 1:
* LED2_SEL: 0b1011 (link established, blink on activity)
*/
val = phy_read(phydev, MDIO_DEVAD_NONE, 0x18);
val &= 0xf0ff;
phy_write(phydev, MDIO_DEVAD_NONE, 0x18, val | (0xb << 8));
if (phydev->drv->config)
phydev->drv->config(phydev);
return 0;
}
#endif
int board_init(void)
{
#ifdef CONFIG_FEC_MXC
setup_fec();
#endif
#if defined(CONFIG_USB_DWC3) || defined(CONFIG_USB_XHCI_DWC3)
init_usb_clk();
#endif
return 0;
}
#ifdef CONFIG_MISC_INIT_R
#define TPM_RESET IMX_GPIO_NR(3, 2)
#define USBHUB_RESET IMX_GPIO_NR(3, 4)
static void reset_device_by_gpio(const char *label, int pin, int delay_ms)
{
gpio_request(pin, label);
gpio_direction_output(pin, 0);
mdelay(delay_ms);
gpio_direction_output(pin, 1);
}
int misc_init_r(void)
{
/*
* reset TPM chip (Infineon SLB9670) as required by datasheet
* (60ms minimum Reset Inactive Time, 70ms implemented)
*/
reset_device_by_gpio("tpm_reset", TPM_RESET, 70);
/*
* reset USB hub as required by datasheet
* (3ms minimum reset duration, 10ms implemented)
*/
reset_device_by_gpio("usbhub_reset", USBHUB_RESET, 10);
return 0;
}
#endif
int board_mmc_get_env_dev(int devno)
{
return devno;
}
uint mmc_get_env_part(struct mmc *mmc)
{
/* part 1 for eMMC, part 1 for SD card */
return (mmc_get_env_dev() == 0) ? 1 : 0;
}
int board_late_init(void)
{
return 0;
}
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