arm64: zynqmp: Add new command for TCM initialization
This patch adds new zynqmp command "zynqmp tcminit mode" to
initialize TCM. TCM needs to be initialized before accessing
to avoid ECC errors. This new command helps to perform
the same. It also makes tcm_init() as global and uses it for
doing the TCM initialization.
Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/arm/cpu/armv8/zynqmp/cpu.c b/arch/arm/cpu/armv8/zynqmp/cpu.c
index 3ed631e..4ee8e3f 100644
--- a/arch/arm/cpu/armv8/zynqmp/cpu.c
+++ b/arch/arm/cpu/armv8/zynqmp/cpu.c
@@ -104,14 +104,16 @@
return 0x14000;
}
-#ifdef CONFIG_SYS_MEM_RSVD_FOR_MMU
-static void tcm_init(u8 mode)
+#if defined(CONFIG_SYS_MEM_RSVD_FOR_MMU) || defined(CONFIG_DEFINE_TCM_OCM_MMAP)
+void tcm_init(u8 mode)
{
puts("WARNING: Initializing TCM overwrites TCM content\n");
initialize_tcm(mode);
memset((void *)ZYNQMP_TCM_BASE_ADDR, 0, ZYNQMP_TCM_SIZE);
}
+#endif
+#ifdef CONFIG_SYS_MEM_RSVD_FOR_MMU
int reserve_mmu(void)
{
tcm_init(TCM_LOCK);