From 87519a9ecefaabc707535a0111b745a1189e3b29 Mon Sep 17 00:00:00 2001 From: Prabhakar Kushwaha Date: Mon, 27 Aug 2018 12:58:52 +0530 Subject: [PATCH] driver: net: fsl-mc: Memset MC reserve ram memory before usage Memory reserved for Management Complex needs to be cleaned before any usage. Signed-off-by: Prabhakar Kushwaha [York S: revised commit message] Reviewed-by: York Sun --- drivers/net/fsl-mc/mc.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/fsl-mc/mc.c b/drivers/net/fsl-mc/mc.c index cb2fbe9e2f..d9a897dc86 100644 --- a/drivers/net/fsl-mc/mc.c +++ b/drivers/net/fsl-mc/mc.c @@ -2,6 +2,7 @@ /* * Copyright 2014 Freescale Semiconductor, Inc. * Copyright 2017 NXP + * Copyright 2017-2018 NXP */ #include #include @@ -29,6 +30,7 @@ #define MC_BOOT_ENV_VAR "mcinitcmd" DECLARE_GLOBAL_DATA_PTR; +static int mc_memset_resv_ram; static int mc_boot_status = -1; static int mc_dpl_applied = -1; #ifdef CONFIG_SYS_LS_MC_DRAM_AIOP_IMG_OFFSET @@ -844,6 +846,11 @@ u64 mc_get_dram_addr(void) { size_t mc_ram_size = mc_get_dram_block_size(); + if (!mc_memset_resv_ram || (get_mc_boot_status() < 0)) { + mc_memset_resv_ram = 1; + memset((void *)gd->arch.resv_ram, 0, mc_ram_size); + } + return (gd->arch.resv_ram + mc_ram_size - 1) & MC_RAM_BASE_ADDR_ALIGNMENT_MASK; } -- 2.25.1