diff options
Diffstat (limited to 'src/soc/mediatek')
| -rw-r--r-- | src/soc/mediatek/common/include/soc/mmu_operations.h (renamed from src/soc/mediatek/mt8173/include/soc/mmu_operations.h) | 18 | ||||
| -rw-r--r-- | src/soc/mediatek/common/mmu_operations.c | 64 | ||||
| -rw-r--r-- | src/soc/mediatek/mt8173/Makefile.inc | 4 | ||||
| -rw-r--r-- | src/soc/mediatek/mt8173/bootblock.c | 2 | ||||
| -rw-r--r-- | src/soc/mediatek/mt8173/flash_controller.c | 2 | ||||
| -rw-r--r-- | src/soc/mediatek/mt8173/include/soc/symbols.h | 23 | ||||
| -rw-r--r-- | src/soc/mediatek/mt8173/mmu_operations.c | 42 |
7 files changed, 105 insertions, 50 deletions
diff --git a/src/soc/mediatek/mt8173/include/soc/mmu_operations.h b/src/soc/mediatek/common/include/soc/mmu_operations.h index 2428c4280c..b081690451 100644 --- a/src/soc/mediatek/mt8173/include/soc/mmu_operations.h +++ b/src/soc/mediatek/common/include/soc/mmu_operations.h @@ -1,7 +1,7 @@ /* * This file is part of the coreboot project. * - * Copyright 2015 MediaTek Inc. + * Copyright 2018 MediaTek Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -13,8 +13,8 @@ * GNU General Public License for more details. */ -#ifndef __SOC_MEDIATEK_MT8173_MMU_OPERATIONS_H__ -#define __SOC_MEDIATEK_MT8173_MMU_OPERATIONS_H__ +#ifndef __SOC_MEDIATEK_COMMON_MMU_OPERATIONS_H__ +#define __SOC_MEDIATEK_COMMON_MMU_OPERATIONS_H__ #include <arch/mmu.h> @@ -29,11 +29,11 @@ extern unsigned char _sram_l2c[]; extern unsigned char _esram_l2c[]; #define _sram_l2c_size (_esram_l2c - _sram_l2c) -extern unsigned char _dram_dma[]; -extern unsigned char _edram_dma[]; -#define _dram_dma_size (_edram_dma - _dram_dma) +void mtk_soc_after_dram(void); +void mtk_soc_disable_l2c_sram(void); -void mt8173_mmu_init(void); -void mt8173_mmu_after_dram(void); +void mtk_mmu_init(void); +void mtk_mmu_after_dram(void); +void mtk_mmu_disable_l2c_sram(void); -#endif //__SOC_MEDIATEK_MT8173_MMU_OPERATIONS_H__ +#endif diff --git a/src/soc/mediatek/common/mmu_operations.c b/src/soc/mediatek/common/mmu_operations.c new file mode 100644 index 0000000000..b9910845c1 --- /dev/null +++ b/src/soc/mediatek/common/mmu_operations.c @@ -0,0 +1,64 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2018 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <arch/mmu.h> +#include <compiler.h> +#include <symbols.h> +#include <soc/emi.h> +#include <soc/mmu_operations.h> + +__weak void mtk_soc_after_dram(void) { /* do nothing */ } + +void mtk_mmu_init(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, _sram_size, CACHED_MEM); + + /* L2C SRAM is cached */ + mmu_config_range(_sram_l2c, _sram_l2c_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); + + mmu_enable(); +} + +void mtk_mmu_after_dram(void) +{ + /* Map DRAM as cached now that it's up and running */ + mmu_config_range(_dram, (uintptr_t)sdram_size(), CACHED_MEM); + + mtk_soc_after_dram(); +} + +void mtk_mmu_disable_l2c_sram(void) +{ + /* 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); + + /* Careful: changing cache geometry while it's active is a bad idea! */ + mmu_disable(); + + mtk_soc_disable_l2c_sram(); + + /* Reenable MMU with now enlarged L2 cache. Page tables still valid. */ + mmu_enable(); +} diff --git a/src/soc/mediatek/mt8173/Makefile.inc b/src/soc/mediatek/mt8173/Makefile.inc index 56c966ae75..d66183250e 100644 --- a/src/soc/mediatek/mt8173/Makefile.inc +++ b/src/soc/mediatek/mt8173/Makefile.inc @@ -29,7 +29,7 @@ endif bootblock-y += gpio.c gpio_init.c pmic_wrap.c mt6391.c bootblock-y += ../common/wdt.c -bootblock-y += mmu_operations.c +bootblock-y += ../common/mmu_operations.c mmu_operations.c ################################################################################ @@ -58,7 +58,7 @@ romstage-y += gpio.c romstage-y += pmic_wrap.c mt6391.c romstage-y += memory.c romstage-y += emi.c dramc_pi_basic_api.c dramc_pi_calibration_api.c -romstage-y += mmu_operations.c +romstage-y += ../common/mmu_operations.c mmu_operations.c romstage-y += rtc.c ################################################################################ diff --git a/src/soc/mediatek/mt8173/bootblock.c b/src/soc/mediatek/mt8173/bootblock.c index 7fe879c4b9..efccc0bec8 100644 --- a/src/soc/mediatek/mt8173/bootblock.c +++ b/src/soc/mediatek/mt8173/bootblock.c @@ -29,7 +29,7 @@ void bootblock_soc_init(void) /* post init pll */ mt_pll_post_init(); - mt8173_mmu_init(); + mtk_mmu_init(); /* init watch dog, will disable AP watch dog */ mtk_wdt_init(); diff --git a/src/soc/mediatek/mt8173/flash_controller.c b/src/soc/mediatek/mt8173/flash_controller.c index f77688563a..0fe9bb4e57 100644 --- a/src/soc/mediatek/mt8173/flash_controller.c +++ b/src/soc/mediatek/mt8173/flash_controller.c @@ -25,8 +25,8 @@ #include <string.h> #include <symbols.h> #include <timer.h> +#include <soc/symbols.h> #include <soc/flash_controller.h> -#include <soc/mmu_operations.h> #define get_nth_byte(d, n) ((d >> (8 * n)) & 0xff) diff --git a/src/soc/mediatek/mt8173/include/soc/symbols.h b/src/soc/mediatek/mt8173/include/soc/symbols.h new file mode 100644 index 0000000000..8e2d0a4fb3 --- /dev/null +++ b/src/soc/mediatek/mt8173/include/soc/symbols.h @@ -0,0 +1,23 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2018 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __SOC_MEDIATEK_MT8173_DRAM_DMA_H__ +#define __SOC_MEDIATEK_MT8173_DRAM_DMA_H__ + +extern unsigned char _dram_dma[]; +extern unsigned char _edram_dma[]; +#define _dram_dma_size (_edram_dma - _dram_dma) + +#endif 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(); } |