From fe7aa2096dcc1f83eb27a4a20b4b56f0bccff043 Mon Sep 17 00:00:00 2001 From: Lin Huang Date: Sat, 19 Mar 2016 22:44:39 +0800 Subject: [PATCH] rockchip: rk3399: enable mmu This patch initialize MMU and config mmu ranges for rk3399. During the bootblock phase, mark the max dram size supported(4GiB) as device memory because the mmio space start at 0xF8000000, and _sram as secure memory. After ddr setup in romstage, remark whole dram as cached memory except the _dma_coherent range. BRANCH=none BUG=chrome-os-partner:51537 TEST=emerge-kevin coreboot Change-Id: I0cd4abb8c30b73d87d8ba6f964edd42bdf4813fb Signed-off-by: Patrick Georgi Original-Commit-Id: fc22ab0c16d8107c217db1629286d5ff1c4bc5b3 Original-Change-Id: I66bfde396036d7a66b29517937a28f0767635066 Original-Signed-off-by: Lin Huang Original-Reviewed-on: https://chromium-review.googlesource.com/332387 Original-Commit-Ready: Vadim Bendebury Original-Tested-by: Vadim Bendebury Original-Reviewed-by: Vadim Bendebury Reviewed-on: https://review.coreboot.org/14708 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- src/soc/rockchip/rk3399/Makefile.inc | 2 + src/soc/rockchip/rk3399/bootblock.c | 2 + .../rk3399/include/soc/mmu_operations.h | 30 +++++++++++++++ src/soc/rockchip/rk3399/mmu_operations.c | 37 +++++++++++++++++++ src/soc/rockchip/rk3399/romstage.c | 9 +++++ 5 files changed, 80 insertions(+) create mode 100644 src/soc/rockchip/rk3399/include/soc/mmu_operations.h create mode 100644 src/soc/rockchip/rk3399/mmu_operations.c diff --git a/src/soc/rockchip/rk3399/Makefile.inc b/src/soc/rockchip/rk3399/Makefile.inc index 718426b137..40c652fcf2 100644 --- a/src/soc/rockchip/rk3399/Makefile.inc +++ b/src/soc/rockchip/rk3399/Makefile.inc @@ -23,6 +23,7 @@ bootblock-$(CONFIG_DRIVERS_UART) += ../common/uart.c endif bootblock-y += bootblock.c bootblock-y += clock.c +bootblock-y += mmu_operations.c bootblock-y += timer.c verstage-y += ../common/cbmem.c @@ -39,6 +40,7 @@ romstage-y += sdram.c romstage-y += ../common/spi.c romstage-$(CONFIG_DRIVERS_UART) += ../common/uart.c romstage-y += clock.c +romstage-y += mmu_operations.c romstage-y += timer.c romstage-y += romstage.c diff --git a/src/soc/rockchip/rk3399/bootblock.c b/src/soc/rockchip/rk3399/bootblock.c index d87f967d5f..3291511aba 100644 --- a/src/soc/rockchip/rk3399/bootblock.c +++ b/src/soc/rockchip/rk3399/bootblock.c @@ -14,10 +14,12 @@ */ #include +#include #include void bootblock_soc_init(void) { rkclk_init(); rkclk_configure_cpu(APLL_L_600_MHZ); + rockchip_mmu_init(); } diff --git a/src/soc/rockchip/rk3399/include/soc/mmu_operations.h b/src/soc/rockchip/rk3399/include/soc/mmu_operations.h new file mode 100644 index 0000000000..d8a6016349 --- /dev/null +++ b/src/soc/rockchip/rk3399/include/soc/mmu_operations.h @@ -0,0 +1,30 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2016 Rockchip 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_ROCKCHIP_RK3399_MMU_H__ +#define __SOC_ROCKCHIP_RK3399_MMU_H__ + +#include + +enum { + DEV_MEM = MA_DEV | MA_S | MA_RW, + CACHED_MEM = MA_MEM | MA_NS | MA_RW, + SECURE_MEM = MA_MEM | MA_S | MA_RW, + UNCACHED_MEM = MA_MEM | MA_NS | MA_RW | MA_MEM_NC, +}; + +void rockchip_mmu_init(void); +#endif diff --git a/src/soc/rockchip/rk3399/mmu_operations.c b/src/soc/rockchip/rk3399/mmu_operations.c new file mode 100644 index 0000000000..f1a1371683 --- /dev/null +++ b/src/soc/rockchip/rk3399/mmu_operations.c @@ -0,0 +1,37 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2016 Rockchip 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 +#include +#include +#include +#include +#include + +void rockchip_mmu_init(void) +{ + mmu_init(); + + /* Set 0x0 to max sdram(4GiB) supported by RK3399 as device memory. + * We want to configure mmio space(start at 0xf8000000) to DEV_MEM, + * some boards may use 2GB sdram in future(who knows). + */ + mmu_config_range((void *)0, (uintptr_t)4 * GiB, DEV_MEM); + + mmu_config_range(_sram, _sram_size, SECURE_MEM); + + mmu_enable(); +} diff --git a/src/soc/rockchip/rk3399/romstage.c b/src/soc/rockchip/rk3399/romstage.c index 4786937acc..93eb41a168 100644 --- a/src/soc/rockchip/rk3399/romstage.c +++ b/src/soc/rockchip/rk3399/romstage.c @@ -18,17 +18,26 @@ #include #include #include +#include #include #include #include #include #include #include +#include + +static const uint64_t dram_size = (uint64_t)CONFIG_DRAM_SIZE_MB * MiB; void main(void) { console_init(); exception_init(); + + /*TODO: need implement sdram init */ + + mmu_config_range((void *)0, (uintptr_t)dram_size, CACHED_MEM); + mmu_config_range(_dma_coherent, _dma_coherent_size, UNCACHED_MEM); cbmem_initialize_empty(); run_ramstage(); }