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driver: net: fsl-mc: Memset MC reserve ram memory before usage

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Memory reserved for Management Complex needs to be cleaned before any
usage.

Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
[York S: revised commit message]
Reviewed-by: York Sun <york.sun@nxp.com>
This commit is contained in:
Prabhakar Kushwaha
2018-08-27 12:58:52 +05:30
committed by York Sun
parent a78df40cba
commit 87519a9ece
1 changed files with 7 additions and 0 deletions
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7
drivers/net/fsl-mc/mc.c
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@@ -2,6 +2,7 @@
/* /*
* Copyright 2014 Freescale Semiconductor, Inc. * Copyright 2014 Freescale Semiconductor, Inc.
* Copyright 2017 NXP * Copyright 2017 NXP
* Copyright 2017-2018 NXP
*/ */
#include <common.h> #include <common.h>
#include <errno.h> #include <errno.h>
@@ -29,6 +30,7 @@
#define MC_BOOT_ENV_VAR "mcinitcmd" #define MC_BOOT_ENV_VAR "mcinitcmd"
DECLARE_GLOBAL_DATA_PTR; DECLARE_GLOBAL_DATA_PTR;
static int mc_memset_resv_ram;
static int mc_boot_status = -1; static int mc_boot_status = -1;
static int mc_dpl_applied = -1; static int mc_dpl_applied = -1;
#ifdef CONFIG_SYS_LS_MC_DRAM_AIOP_IMG_OFFSET #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(); 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) & return (gd->arch.resv_ram + mc_ram_size - 1) &
MC_RAM_BASE_ADDR_ALIGNMENT_MASK; MC_RAM_BASE_ADDR_ALIGNMENT_MASK;
} }