diff options
Diffstat (limited to 'src/soc/cavium/cn81xx')
| -rw-r--r-- | src/soc/cavium/cn81xx/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/soc/cavium/cn81xx/include/soc/addressmap.h | 4 | ||||
| -rw-r--r-- | src/soc/cavium/cn81xx/include/soc/memlayout.ld | 4 | ||||
| -rw-r--r-- | src/soc/cavium/cn81xx/include/soc/mmu.h | 21 | ||||
| -rw-r--r-- | src/soc/cavium/cn81xx/mmu.c | 45 |
5 files changed, 74 insertions, 2 deletions
diff --git a/src/soc/cavium/cn81xx/Makefile.inc b/src/soc/cavium/cn81xx/Makefile.inc index d265c19bb8..2e12b0137c 100644 --- a/src/soc/cavium/cn81xx/Makefile.inc +++ b/src/soc/cavium/cn81xx/Makefile.inc @@ -42,6 +42,8 @@ romstage-$(CONFIG_DRIVERS_UART) += uart.c romstage-< += cpu.c romstage-y += sdram.c +romstage-y += mmu.c + romstage-y += ../common/cbmem.c # BDK coreboot interface romstage-y += ../common/bdk-coreboot.c diff --git a/src/soc/cavium/cn81xx/include/soc/addressmap.h b/src/soc/cavium/cn81xx/include/soc/addressmap.h index e23549450b..8c993ad9d2 100644 --- a/src/soc/cavium/cn81xx/include/soc/addressmap.h +++ b/src/soc/cavium/cn81xx/include/soc/addressmap.h @@ -23,6 +23,10 @@ /* ARM code entry vector */ #define BOOTROM_OFFSET 0x100000 +/* Start of IO space */ +#define IO_SPACE_START 0x800000000000ULL +#define IO_SPACE_SIZE 0x100000000000ULL + /* L2C */ #define L2C_PF_BAR0 0x87E080800000ULL #define L2C_TAD0_PF_BAR0 (0x87E050000000ULL + 0x10000) diff --git a/src/soc/cavium/cn81xx/include/soc/memlayout.ld b/src/soc/cavium/cn81xx/include/soc/memlayout.ld index f0ac2c9da5..d7ee5766a0 100644 --- a/src/soc/cavium/cn81xx/include/soc/memlayout.ld +++ b/src/soc/cavium/cn81xx/include/soc/memlayout.ld @@ -33,8 +33,8 @@ SECTIONS BOOTBLOCK(BOOTROM_OFFSET + 0x20000, 64K) ROMSTAGE(BOOTROM_OFFSET + 0x40000, 256K) SRAM_END(BOOTROM_OFFSET + 0x80000) - TTB(BOOTROM_OFFSET + 0x80000, 128K) - RAMSTAGE(BOOTROM_OFFSET + 0xa0000, 512K) + TTB(BOOTROM_OFFSET + 0x80000, 512K) + RAMSTAGE(BOOTROM_OFFSET + 0x100000, 512K) /* Leave some space for the payload */ POSTRAM_CBFS_CACHE(0x2000000, 16M) diff --git a/src/soc/cavium/cn81xx/include/soc/mmu.h b/src/soc/cavium/cn81xx/include/soc/mmu.h new file mode 100644 index 0000000000..9b811c3966 --- /dev/null +++ b/src/soc/cavium/cn81xx/include/soc/mmu.h @@ -0,0 +1,21 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2017-present Facebook, 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_CAVIUM_CN81XX_INCLUDE_SOC_MMU_H +#define __SOC_CAVIUM_CN81XX_INCLUDE_SOC_MMU_H + +void soc_mmu_init(void); + +#endif /* ! __SOC_CAVIUM_CN81XX_INCLUDE_SOC_MMU_H */ diff --git a/src/soc/cavium/cn81xx/mmu.c b/src/soc/cavium/cn81xx/mmu.c new file mode 100644 index 0000000000..d6e7ac5ee1 --- /dev/null +++ b/src/soc/cavium/cn81xx/mmu.c @@ -0,0 +1,45 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * Copyright 2018-present Facebook, 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 <symbols.h> +#include <soc/addressmap.h> +#include <soc/mmu.h> +#include <soc/sdram.h> +#include <arch/mmu.h> + +void soc_mmu_init(void) +{ + const unsigned long devmem = MA_DEV | MA_S | MA_RW; + const unsigned long secure_mem = MA_MEM | MA_S | MA_RW; + + mmu_init(); + + /* + * Need to use secure mem attribute, as firmware is running in ARM TZ + * region. + */ + mmu_config_range((void *)_ttb, _ttb_size, secure_mem); + mmu_config_range((void *)_dram, sdram_size_mb() * MiB, secure_mem); + /* IO space has the MSB set and is divided into 4 sub-regions: + * * NCB + * * SLI + * * RSL + * * AP + */ + mmu_config_range((void *)IO_SPACE_START, IO_SPACE_SIZE, devmem); + + mmu_enable(); +} |