diff options
author | Tristan Shieh <tristan.shieh@mediatek.com> | 2018-07-04 13:37:39 +0800 |
---|---|---|
committer | Patrick Georgi <pgeorgi@google.com> | 2018-07-11 10:45:48 +0000 |
commit | c645a5aac4c2af002c7748524fbe1f51a64e2300 (patch) | |
tree | 99ace67b095563382f7abd2d94a8177fe06073c4 /src/soc/mediatek/mt8173/mmu_operations.c | |
parent | 1a26a30a7f8b52635998c0d35e79fa84c513995c (diff) |
mediatek: Share MMU operation code among similar SOCs
Refactor MMU operation code which will be reused among similar SOCs.
BUG=b:80501386
BRANCH=none
TEST=Boots correctly on Elm
Change-Id: Id8173da0a02e57e863263fcd89c91a9c089e8a0f
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/27349
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Diffstat (limited to 'src/soc/mediatek/mt8173/mmu_operations.c')
-rw-r--r-- | src/soc/mediatek/mt8173/mmu_operations.c | 42 |
1 files changed, 5 insertions, 37 deletions
diff --git a/src/soc/mediatek/mt8173/mmu_operations.c b/src/soc/mediatek/mt8173/mmu_operations.c index c744d65b8e..951873da0c 100644 --- a/src/soc/mediatek/mt8173/mmu_operations.c +++ b/src/soc/mediatek/mt8173/mmu_operations.c @@ -15,55 +15,23 @@ #include <arch/io.h> #include <arch/mmu.h> -#include <console/console.h> #include <symbols.h> -#include <stdlib.h> -#include <stdint.h> -#include <soc/addressmap.h> -#include <soc/emi.h> +#include <soc/symbols.h> #include <soc/infracfg.h> #include <soc/mcucfg.h> #include <soc/mmu_operations.h> -void mt8173_mmu_init(void) +void mtk_soc_after_dram(void) { - mmu_init(); - - /* Set 0x0 to the end of 2GB dram address as device memory */ - mmu_config_range((void *)0, (uintptr_t)_dram + 2U * GiB, DEV_MEM); - - /* SRAM is cached */ - mmu_config_range(_sram_l2c, _sram_l2c_size + _sram_size, CACHED_MEM); - - /* DMA is non-cached and is reserved for TPM & da9212 I2C DMA */ - mmu_config_range(_dma_coherent, _dma_coherent_size, UNCACHED_MEM); - - /* set ttb as secure */ - mmu_config_range(_ttb, _ttb_size, SECURE_MEM); - - mmu_enable(); + mmu_config_range(_dram_dma, _dram_dma_size, UNCACHED_MEM); + mtk_mmu_disable_l2c_sram(); } -void mt8173_mmu_after_dram(void) +void mtk_soc_disable_l2c_sram(void) { - /* Map DRAM as cached now that it's up and running */ - mmu_config_range(_dram, (uintptr_t)sdram_size(), CACHED_MEM); - - /* Unmap L2C SRAM so it can be reclaimed by L2 cache */ - /* TODO: Implement true unmapping, and also use it for the zero-page! */ - mmu_config_range(_sram_l2c, _sram_l2c_size, DEV_MEM); - - mmu_config_range(_dram_dma, _dram_dma_size, UNCACHED_MEM); - - /* Careful: changing cache geometry while it's active is a bad idea! */ - mmu_disable(); - /* Return L2C SRAM back to L2 cache. Set it to 512KiB which is the max * available L2 cache for A53 in MT8173. */ write32(&mt8173_mcucfg->mp0_ca7l_cache_config, 3 << 8); /* turn off the l2c sram clock */ write32(&mt8173_infracfg->infra_pdn0, L2C_SRAM_PDN); - - /* Reenable MMU with now enlarged L2 cache. Page tables still valid. */ - mmu_enable(); } |