random-mirrors/smaeul-u-boot
1
0
Fork 0
mirror of https://github.com/smaeul/u-boot.git synced 2025-11-04 05:50:17 +00:00
Code Issues Packages Projects Releases Wiki Activity

board: ti: am64x: Account for DDR size fixups if ECC is enabled

Browse Source 
Call into k3-ddrss driver to fixup device tree and resize the available
amount of DDR if ECC is enabled.

A second fixup is required from A53 SPL to take the fixup as done from
R5 SPL and apply it to DT passed to A53 U-boot, which in turn passes
this to the OS.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
This commit is contained in:
Dave Gerlach 2022-03-17 12:03:44 -05:00 committed by Tom Rini
parent f861ce90ca
commit 7ffcff277d
1 changed files with 53 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
board/ti/am64x/evm.c
View File

@ -2,13 +2,15 @@
/*
* Board specific initialization for AM642 EVM
*
* Copyright (C) 2020-2021 Texas Instruments Incorporated - https://www.ti.com/
* Copyright (C) 2020-2022 Texas Instruments Incorporated - https://www.ti.com/
* Keerthy <j-keerthy@ti.com>
*
*/
#include <common.h>
#include <asm/io.h>
#include <dm/uclass.h>
#include <k3-ddrss.h>
#include <spl.h>
#include <fdt_support.h>
#include <asm/arch/hardware.h>
@ -66,7 +68,8 @@ int board_fit_config_name_match(const char *name)
}
#endif
#if defined(CONFIG_SPL_BUILD) && CONFIG_IS_ENABLED(USB_STORAGE)
#if defined(CONFIG_SPL_BUILD)
#if CONFIG_IS_ENABLED(USB_STORAGE)
static int fixup_usb_boot(const void *fdt_blob)
{
int ret = 0;
@ -90,10 +93,58 @@ static int fixup_usb_boot(const void *fdt_blob)
return ret;
}
#endif
#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
#if CONFIG_IS_ENABLED(USB_STORAGE)
fixup_usb_boot(spl_image->fdt_addr);
#endif
}
#endif