u-boot/board/ti/am62x/evm.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Board specific initialization for AM62x platforms
 *
 * Copyright (C) 2020-2022 Texas Instruments Incorporated - https://www.ti.com/
 *	Suman Anna <s-anna@ti.com>
 *
 */

#include <efi_loader.h>
#include <env.h>
#include <spl.h>
#include <init.h>
#include <video.h>
#include <splash.h>
#include <cpu_func.h>
#include <k3-ddrss.h>
#include <fdt_support.h>
#include <fdt_simplefb.h>
#include <asm/io.h>
#include <asm/arch/hardware.h>
#include <dm/uclass.h>

#include "../common/fdt_ops.h"

DECLARE_GLOBAL_DATA_PTR;

#if CONFIG_IS_ENABLED(SPLASH_SCREEN)
static struct splash_location default_splash_locations[] = {
	{
		.name = "sf",
		.storage = SPLASH_STORAGE_SF,
		.flags = SPLASH_STORAGE_RAW,
		.offset = 0x700000,
	},
	{
		.name		= "mmc",
		.storage	= SPLASH_STORAGE_MMC,
		.flags		= SPLASH_STORAGE_FS,
		.devpart	= "1:1",
	},
};

int splash_screen_prepare(void)
{
	return splash_source_load(default_splash_locations,
				ARRAY_SIZE(default_splash_locations));
}
#endif

struct efi_fw_image fw_images[] = {
	{
		.image_type_id = AM62X_SK_TIBOOT3_IMAGE_GUID,
		.fw_name = u"AM62X_SK_TIBOOT3",
		.image_index = 1,
	},
	{
		.image_type_id = AM62X_SK_SPL_IMAGE_GUID,
		.fw_name = u"AM62X_SK_SPL",
		.image_index = 2,
	},
	{
		.image_type_id = AM62X_SK_UBOOT_IMAGE_GUID,
		.fw_name = u"AM62X_SK_UBOOT",
		.image_index = 3,
	}
};

struct efi_capsule_update_info update_info = {
	.dfu_string = "sf 0:0=tiboot3.bin raw 0 80000;"
	"tispl.bin raw 80000 200000;u-boot.img raw 280000 400000",
	.num_images = ARRAY_SIZE(fw_images),
	.images = fw_images,
};

#if IS_ENABLED(CONFIG_SET_DFU_ALT_INFO)
void set_dfu_alt_info(char *interface, char *devstr)
{
	if (IS_ENABLED(CONFIG_EFI_HAVE_CAPSULE_SUPPORT))
		env_set("dfu_alt_info", update_info.dfu_string);
}
#endif

int board_init(void)
{
	return 0;
}

int dram_init(void)
{
	return fdtdec_setup_mem_size_base();
}

#ifdef CONFIG_BOARD_LATE_INIT
int board_late_init(void)
{
	ti_set_fdt_env(NULL, NULL);
	return 0;
}
#endif

int dram_init_banksize(void)
{
	return fdtdec_setup_memory_banksize();
}

#if defined(CONFIG_XPL_BUILD)

void spl_board_init(void)
{
	enable_caches();
	if (IS_ENABLED(CONFIG_SPL_SPLASH_SCREEN) && IS_ENABLED(CONFIG_SPL_BMP))
		splash_display();

}

#if defined(CONFIG_K3_AM64_DDRSS)
static void fixup_ddr_driver_for_ecc(struct spl_image_info *spl_image)
{
	struct udevice *dev;
	int ret;

	dram_init_banksize();

	ret = uclass_get_device(UCLASS_RAM, 0, &dev);
	if (ret)
		panic("Cannot get RAM device for ddr size fixup: %d\n", ret);

	ret = k3_ddrss_ddr_fdt_fixup(dev, spl_image->fdt_addr, gd->bd);
	if (ret)
		printf("Error fixing up ddr node for ECC use! %d\n", ret);
}
#else
static void fixup_memory_node(struct spl_image_info *spl_image)
{
	u64 start[CONFIG_NR_DRAM_BANKS];
	u64 size[CONFIG_NR_DRAM_BANKS];
	int bank;
	int ret;

	dram_init();
	dram_init_banksize();

	for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
		start[bank] =  gd->bd->bi_dram[bank].start;
		size[bank] = gd->bd->bi_dram[bank].size;
	}

	/* dram_init functions use SPL fdt, and we must fixup u-boot fdt */
	ret = fdt_fixup_memory_banks(spl_image->fdt_addr, start, size,
				     CONFIG_NR_DRAM_BANKS);
	if (ret)
		printf("Error fixing up memory node! %d\n", ret);
}
#endif

void spl_perform_fixups(struct spl_image_info *spl_image)
{
#if defined(CONFIG_K3_AM64_DDRSS)
	fixup_ddr_driver_for_ecc(spl_image);
#else
	fixup_memory_node(spl_image);
#endif
}
#endif

#if defined(CONFIG_OF_BOARD_SETUP)
int ft_board_setup(void *blob, struct bd_info *bd)
{
	int ret = -1;

	if (IS_ENABLED(CONFIG_FDT_SIMPLEFB))
		ret = fdt_simplefb_enable_and_mem_rsv(blob);

	/* If simplefb is not enabled and video is active, then at least reserve
	 * the framebuffer region to preserve the splash screen while OS is booting
	 */
	if (IS_ENABLED(CONFIG_VIDEO) && IS_ENABLED(CONFIG_OF_LIBFDT)) {
		if (ret && video_is_active())
			return fdt_add_fb_mem_rsv(blob);
	}

	return 0;
}
#endif