nsekar@codeaurora.org has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/29950
Change subject: soc/qualcomm/qcs405: Add MMU support ......................................................................
soc/qualcomm/qcs405: Add MMU support
Initialize 1st 4GB as Device Memory, except: * 1st page: NULL address * System_IMEM: Cached SRAM * Boot_IMEM: Cached SRAM
Change-Id: I8c6353be2c0379ec94f91223805762a2286de06d Signed-off-by: Sricharan R sricharan@codeaurora.org Signed-off-by: Nitheesh Sekar nsekar@codeaurora.org --- M src/soc/qualcomm/qcs405/Makefile.inc M src/soc/qualcomm/qcs405/bootblock.c A src/soc/qualcomm/qcs405/include/soc/mmu.h A src/soc/qualcomm/qcs405/include/soc/symbols.h A src/soc/qualcomm/qcs405/mmu.c 5 files changed, 85 insertions(+), 1 deletion(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/50/29950/1
diff --git a/src/soc/qualcomm/qcs405/Makefile.inc b/src/soc/qualcomm/qcs405/Makefile.inc index 15f5a0c..2d1f842 100644 --- a/src/soc/qualcomm/qcs405/Makefile.inc +++ b/src/soc/qualcomm/qcs405/Makefile.inc @@ -5,6 +5,7 @@ bootblock-y += bootblock.c bootblock-y += timer.c bootblock-y += spi.c +bootblock-y += mmu.c
################################################################################ verstage-y += timer.c diff --git a/src/soc/qualcomm/qcs405/bootblock.c b/src/soc/qualcomm/qcs405/bootblock.c index 3ed37ae..5e63f13 100644 --- a/src/soc/qualcomm/qcs405/bootblock.c +++ b/src/soc/qualcomm/qcs405/bootblock.c @@ -14,8 +14,9 @@ */
#include <bootblock_common.h> +#include <soc/mmu.h>
void bootblock_soc_init(void) { - + qcs405_mmu_init(); } diff --git a/src/soc/qualcomm/qcs405/include/soc/mmu.h b/src/soc/qualcomm/qcs405/include/soc/mmu.h new file mode 100644 index 0000000..bc42e72 --- /dev/null +++ b/src/soc/qualcomm/qcs405/include/soc/mmu.h @@ -0,0 +1,21 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2018, The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * 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_QUALCOMM_QCS405_MMU_H__ +#define _SOC_QUALCOMM_QCS405_MMU_H__ + +void qcs405_mmu_init(void); + +#endif // _SOC_QUALCOMM_QCS405_MMU_H_ diff --git a/src/soc/qualcomm/qcs405/include/soc/symbols.h b/src/soc/qualcomm/qcs405/include/soc/symbols.h new file mode 100644 index 0000000..7b35c55 --- /dev/null +++ b/src/soc/qualcomm/qcs405/include/soc/symbols.h @@ -0,0 +1,29 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2018, The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * 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_QUALCOMM_QCS405_SYMBOLS_H_ +#define _SOC_QUALCOMM_QCS405_SYMBOLS_H_ + +#include <types.h> + +extern u8 _ssram[]; +extern u8 _essram[]; +#define _ssram_size (_essram - _ssram) + +extern u8 _bsram[]; +extern u8 _ebsram[]; +#define _bsram_size (_ebsram - _bsram) + +#endif // _SOC_QUALCOMM_QCS405_SYMBOLS_H_ diff --git a/src/soc/qualcomm/qcs405/mmu.c b/src/soc/qualcomm/qcs405/mmu.c new file mode 100644 index 0000000..b47de42 --- /dev/null +++ b/src/soc/qualcomm/qcs405/mmu.c @@ -0,0 +1,32 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2018, The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * 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 <symbols.h> +#include <arch/mmu.h> +#include <arch/cache.h> +#include <soc/mmu.h> +#include <soc/symbols.h> + +void qcs405_mmu_init() +{ + mmu_init(); + + mmu_config_range((void *)(4 * KiB), ((4UL * GiB) - (4 * KiB)), + MA_DEV | MA_S | MA_RW); + mmu_config_range((void *)_ssram, _ssram_size, MA_MEM | MA_S | MA_RW); + mmu_config_range((void *)_bsram, _bsram_size, MA_MEM | MA_S | MA_RW); + + mmu_enable(); +}