diff options
| author | York Sun <yorksun@freescale.com> | 2015-12-04 11:57:08 -0800 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2015-12-15 08:57:33 +0800 |
| commit | c107c0c05c988ac6cfba6de60c90f105bbea0e1e (patch) | |
| tree | 5c3c98cf44b3e8991687875e985ce4d73485a3cf /arch/arm/include/asm/arch-fsl-layerscape/config.h | |
| parent | e81495224f732f17ae6f379baf23b90cd1d5cb5f (diff) | |
armv8: fsl-layerscape: Make DDR non secure in MMU tables
DDR has been set as secure in MMU tables. Non-secure master such
as SDHC DMA cannot access data correctly. Mixing secure and non-
secure MMU entries requirs the MMU tables themselves in secure
memory. This patch moves MMU tables into a secure DDR area.
Early MMU tables are changed to set DDR as non-secure. A new
table is added into final MMU tables so secure memory can have
2MB granuality.
gd->secure_ram tracks the location of this secure memory. For
ARMv8 SoCs, the RAM base is not zero and RAM is divided into several
banks. gd->secure_ram needs to be maintained before using. This
maintenance is board-specific, depending on the SoC and memory
bank of the secure memory falls into.
Signed-off-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'arch/arm/include/asm/arch-fsl-layerscape/config.h')
| -rw-r--r-- | arch/arm/include/asm/arch-fsl-layerscape/config.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/config.h b/arch/arm/include/asm/arch-fsl-layerscape/config.h index 7217a87502..b39281260d 100644 --- a/arch/arm/include/asm/arch-fsl-layerscape/config.h +++ b/arch/arm/include/asm/arch-fsl-layerscape/config.h @@ -17,6 +17,12 @@ #define CONFIG_SYS_FSL_DDR /* Freescale DDR driver */ #define CONFIG_SYS_FSL_DDR_VER FSL_DDR_VER_5_0 +/* + * Reserve secure memory + * To be aligned with MMU block size + */ +#define CONFIG_SYS_MEM_RESERVE_SECURE (2048 * 1024) /* 2MB */ + #if defined(CONFIG_LS2080A) || defined(CONFIG_LS2085A) #define CONFIG_MAX_CPUS 16 #define CONFIG_SYS_FSL_IFC_BANK_COUNT 8 |