mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-09-29 08:00:26 +09:00
armv7R: K3: am654: Add support to start ATF from R5 SPL
Considering the boot time requirements, Cortex-A core should be able to start immediately after SPL on R5. Add support for the same. Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
This commit is contained in:
parent
890b2e750d
commit
a3501a4a44
@ -58,5 +58,12 @@ config SYS_K3_BOOT_CORE_ID
|
|||||||
int
|
int
|
||||||
default 16
|
default 16
|
||||||
|
|
||||||
|
config SYS_K3_SPL_ATF
|
||||||
|
bool "Start Cortex-A from SPL"
|
||||||
|
depends on SPL && CPU_V7R
|
||||||
|
help
|
||||||
|
Enabling this will try to start Cortex-A (typically with ATF)
|
||||||
|
after SPL from R5.
|
||||||
|
|
||||||
source "board/ti/am65x/Kconfig"
|
source "board/ti/am65x/Kconfig"
|
||||||
endif
|
endif
|
||||||
|
@ -6,3 +6,4 @@
|
|||||||
obj-$(CONFIG_SOC_K3_AM6) += am6_init.o
|
obj-$(CONFIG_SOC_K3_AM6) += am6_init.o
|
||||||
obj-$(CONFIG_ARM64) += arm64-mmu.o
|
obj-$(CONFIG_ARM64) += arm64-mmu.o
|
||||||
obj-$(CONFIG_CPU_V7R) += r5_mpu.o
|
obj-$(CONFIG_CPU_V7R) += r5_mpu.o
|
||||||
|
obj-y += common.o
|
||||||
|
52
arch/arm/mach-k3/common.c
Normal file
52
arch/arm/mach-k3/common.c
Normal file
@ -0,0 +1,52 @@
|
|||||||
|
// SPDX-License-Identifier: GPL-2.0+
|
||||||
|
/*
|
||||||
|
* K3: Common Architecture initialization
|
||||||
|
*
|
||||||
|
* Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
|
||||||
|
* Lokesh Vutla <lokeshvutla@ti.com>
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <common.h>
|
||||||
|
#include <spl.h>
|
||||||
|
#include "common.h"
|
||||||
|
#include <dm.h>
|
||||||
|
#include <remoteproc.h>
|
||||||
|
|
||||||
|
#ifdef CONFIG_SYS_K3_SPL_ATF
|
||||||
|
void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
|
||||||
|
{
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* It is assumed that remoteproc device 1 is the corresponding
|
||||||
|
* cortex A core which runs ATF. Make sure DT reflects the same.
|
||||||
|
*/
|
||||||
|
ret = rproc_dev_init(1);
|
||||||
|
if (ret) {
|
||||||
|
printf("%s: ATF failed to Initialize on rproc: ret= %d\n",
|
||||||
|
__func__, ret);
|
||||||
|
hang();
|
||||||
|
}
|
||||||
|
|
||||||
|
ret = rproc_load(1, spl_image->entry_point, 0x200);
|
||||||
|
if (ret) {
|
||||||
|
printf("%s: ATF failed to load on rproc: ret= %d\n",
|
||||||
|
__func__, ret);
|
||||||
|
hang();
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Add an extra newline to differentiate the ATF logs from SPL*/
|
||||||
|
printf("Starting ATF on ARM64 core...\n\n");
|
||||||
|
|
||||||
|
ret = rproc_start(1);
|
||||||
|
if (ret) {
|
||||||
|
printf("%s: ATF failed to start on rproc: ret= %d\n",
|
||||||
|
__func__, ret);
|
||||||
|
hang();
|
||||||
|
}
|
||||||
|
|
||||||
|
debug("ATF started. Wait indefiniely\n");
|
||||||
|
while (1)
|
||||||
|
asm volatile("wfe");
|
||||||
|
}
|
||||||
|
#endif
|
Loading…
Reference in New Issue
Block a user