diff options
Diffstat (limited to 'src/cpu/samsung/exynos5420/bootblock.c')
| -rw-r--r-- | src/cpu/samsung/exynos5420/bootblock.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/cpu/samsung/exynos5420/bootblock.c b/src/cpu/samsung/exynos5420/bootblock.c index 5cc9ef6af2..3df51a7421 100644 --- a/src/cpu/samsung/exynos5420/bootblock.c +++ b/src/cpu/samsung/exynos5420/bootblock.c @@ -17,10 +17,17 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ +#include <arch/cache.h> + #include "clk.h" #include "wakeup.h" #include "cpu.h" +/* convenient shorthand (in MB) */ +#define SRAM_START (0x02020000 >> 20) +#define SRAM_SIZE 1 +#define SRAM_END (SRAM_START + SRAM_SIZE) /* plus one... */ + void bootblock_cpu_init(void); void bootblock_cpu_init(void) { @@ -51,6 +58,14 @@ void bootblock_cpu_init(void) /* Never returns. */ } + /* set up dcache and MMU */ + mmu_init(); + mmu_config_range(0, SRAM_START, DCACHE_OFF); + mmu_config_range(SRAM_START, SRAM_SIZE, DCACHE_WRITEBACK); + mmu_config_range(SRAM_END, 4096 - SRAM_END, DCACHE_OFF); + dcache_invalidate_all(); + dcache_mmu_enable(); + /* For most ARM systems, we have to initialize firmware media source * (ex, SPI, SD/MMC, or eMMC) now; but for Exynos platform, that is * already handled by iROM so there's no need to setup again. |