On 10/11/24 13:34, Padmarao Begari wrote:

Fix the issue introduced by commit fed064477c2c ("arm64: zynqmp: Print an error for split to lock mode switch"). The mini u-boot is hanging, because of the tcm is not initialized. The mini u-boot is using the tcm to reserve the mmu table and currently it is not initialized, so allowing u-boot to initialize the tcm.

Signed-off-by: Padmarao Begari padmarao.begari@amd.com

arch/arm/mach-zynqmp/cpu.c | 7 +++++-- arch/arm/mach-zynqmp/include/mach/sys_proto.h | 2 +- 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-zynqmp/cpu.c b/arch/arm/mach-zynqmp/cpu.c index b24c1631479..6c43063bf23 100644 --- a/arch/arm/mach-zynqmp/cpu.c +++ b/arch/arm/mach-zynqmp/cpu.c @@ -112,7 +112,7 @@ u64 get_page_table_size(void) return 0x14000; }

-#if defined(CONFIG_SYS_MEM_RSVD_FOR_MMU) || defined(CONFIG_DEFINE_TCM_OCM_MMAP) +#if defined(CONFIG_DEFINE_TCM_OCM_MMAP) void tcm_init(u8 mode) { int ret; @@ -134,7 +134,10 @@ void tcm_init(u8 mode) #ifdef CONFIG_SYS_MEM_RSVD_FOR_MMU int arm_reserve_mmu(void) {

• tcm_init(TCM_LOCK);

• puts("WARNING: Initializing TCM overwrites TCM content\n");
• initialize_tcm(TCM_LOCK);
• memset((void *)ZYNQMP_TCM_BASE_ADDR, 0, ZYNQMP_TCM_SIZE);
• gd->arch.tlb_size = PGTABLE_SIZE; gd->arch.tlb_addr = ZYNQMP_TCM_BASE_ADDR;

diff --git a/arch/arm/mach-zynqmp/include/mach/sys_proto.h b/arch/arm/mach-zynqmp/include/mach/sys_proto.h index b3396db28f0..9af3ab5d6b6 100644 --- a/arch/arm/mach-zynqmp/include/mach/sys_proto.h +++ b/arch/arm/mach-zynqmp/include/mach/sys_proto.h @@ -51,7 +51,7 @@ unsigned int zynqmp_get_silicon_version(void); int check_tcm_mode(bool mode); void initialize_tcm(bool mode); void mem_map_fill(void); -#if defined(CONFIG_SYS_MEM_RSVD_FOR_MMU) || defined(CONFIG_DEFINE_TCM_OCM_MMAP) +#if defined(CONFIG_DEFINE_TCM_OCM_MMAP) void tcm_init(u8 mode); #endif

Applied. M