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arm: total_compute: depend on TF-A for hardware description

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On Total Compute, TF-A passes the info via DT binding for the hardware
description - includes the serial, memory, and arm_ffa nodes.

This commit initializes the fdt base address based on the passed the
register x1.

The similar implementation has already been done for the raspberry pi,
so borrow a lot of it.

Co-developed-by: Jackson Cooper-Driver <jackson.cooper-driver@arm.com>
Signed-off-by: Jackson Cooper-Driver <jackson.cooper-driver@arm.com>
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Signed-off-by: Leo Yan <leo.yan@arm.com>
This commit is contained in:
Boyan Karatotev 2024-10-25 18:18:14 +01:00 • committed by Tom Rini
parent 625d40ab12
commit ed36494724
5 changed files with 35 additions and 38 deletions
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1
arch/arm/Kconfig
View file

@ -1390,6 +1390,7 @@ config TARGET_TOTAL_COMPUTE
select DM_SERIAL
select DM_MMC
select DM_GPIO
imply OF_HAS_PRIOR_STAGE
config TARGET_LS2080A_EMU
bool "Support ls2080a_emu"

1
board/armltd/total_compute/Makefile
View file

@ -4,3 +4,4 @@
# Usama Arif <usama.arif@arm.com>
obj-y := total_compute.o
obj-y += lowlevel_init.o

12
board/armltd/total_compute/lowlevel_init.S Normal file
View file

@ -0,0 +1,12 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2024 Arm Limited
*/
.global save_boot_params
save_boot_params:
/* The firmware provided FDT address via x1 */
adr x8, fw_dtb_pointer
str x1, [x8]
b save_boot_params_ret

41
board/armltd/total_compute/total_compute.c
View file

@ -7,19 +7,10 @@
#include <config.h>
#include <dm.h>
#include <dm/platform_data/serial_pl01x.h>
#include <env.h>
#include <asm/armv8/mmu.h>
#include <asm/global_data.h>
static const struct pl01x_serial_plat serial_plat = {
.base = UART0_BASE,
.type = TYPE_PL011,
.clock = CFG_PL011_CLOCK,
};
U_BOOT_DRVINFO(total_compute_serials) = {
.name = "serial_pl01x",
.plat = &serial_plat,
};
#include <asm/system.h>
static struct mm_region total_compute_mem_map[] = {
{
@ -43,6 +34,23 @@ static struct mm_region total_compute_mem_map[] = {
struct mm_region *mem_map = total_compute_mem_map;
/*
* Push the variable into the .data section so that it
* does not get cleared later.
*/
unsigned long __section(".data") fw_dtb_pointer;
void *board_fdt_blob_setup(int *err)
{
*err = 0;
if (fdt_magic(fw_dtb_pointer) != FDT_MAGIC) {
*err = -ENXIO;
return NULL;
}
return (void *)fw_dtb_pointer;
}
int board_init(void)
{
return 0;
@ -50,19 +58,12 @@ int board_init(void)
int dram_init(void)
{
gd->ram_size = PHYS_SDRAM_1_SIZE;
return 0;
return fdtdec_setup_mem_size_base();
}
int dram_init_banksize(void)
{
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
return 0;
return fdtdec_setup_memory_banksize();
}
/* Nothing to be done here as handled by PSCI interface */

18
include/configs/total_compute.h
View file

@ -11,24 +11,6 @@
/* Link Definitions */
/* AP non-secure UART base address */
#define UART0_BASE 0x2A400000
/* PL011 Serial Configuration */
#define CFG_PL011_CLOCK 7372800
/* Miscellaneous configurable options */
/* Physical Memory Map */
#define PHYS_SDRAM_1 0x80000000
/* Top 48MB reserved for secure world use */
#define DRAM_SEC_SIZE 0x03000000
#define PHYS_SDRAM_1_SIZE 0x80000000 - DRAM_SEC_SIZE
#define CFG_SYS_SDRAM_BASE PHYS_SDRAM_1
#define PHYS_SDRAM_2 0x8080000000
#define PHYS_SDRAM_2_SIZE 0x180000000
#define CFG_EXTRA_ENV_SETTINGS \
"bootm_size=0x20000000\0" \
"load_addr=0xa0000000\0" \