diff options
| author | Deepa Dinamani <deepad@codeaurora.org> | 2015-01-12 11:57:09 -0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-04-17 09:59:08 +0200 |
| commit | 1c2748d113014e7e675e6ece17c6e916a6a4ec7d (patch) | |
| tree | 9c2369fc09a437eb85c9b2391addd9a9f0d0b7a8 /src/mainboard/google/storm/mainboard.c | |
| parent | efe279d422fcdae72f9ad54b348aa445a8e45666 (diff) | |
ipq806x: Add support for mmu in bootblock.
move mmu setup from RAM stage to boot block
Enabling mmu earlier, helps speed up the boot time.
BRANCH=storm
BUG=chrome-os-partner:35024
TEST=Verified the mmu table dump matches the programmed values.
Change-Id: I8f581538d5dfd0d78538c9fe50f689d54b740685
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: fb799a6d61f9c2f478434a71584d0edb94af4b59
Original-Change-Id: I110497875002a88add7eb4312a70c0de8c28bc4f
Original-Signed-off-by: Deepa Dinamani <deepad@codeaurora.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/247120
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Commit-Queue: Trevor Bourget <tbourget@codeaurora.org>
Reviewed-on: http://review.coreboot.org/9756
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/mainboard/google/storm/mainboard.c')
| -rw-r--r-- | src/mainboard/google/storm/mainboard.c | 37 |
1 files changed, 6 insertions, 31 deletions
diff --git a/src/mainboard/google/storm/mainboard.c b/src/mainboard/google/storm/mainboard.c index e69a1ea894..f83cfe99ad 100644 --- a/src/mainboard/google/storm/mainboard.c +++ b/src/mainboard/google/storm/mainboard.c @@ -1,6 +1,7 @@ /* * This file is part of the coreboot project. * + * Copyright (c) 2015, The Linux Foundation. All rights reserved. * Copyright 2014 Google Inc. * * This program is free software; you can redistribute it and/or modify @@ -17,7 +18,6 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ -#include <arch/cache.h> #include <boardid.h> #include <boot/coreboot_tables.h> #include <delay.h> @@ -29,15 +29,7 @@ #include <symbols.h> #include <vendorcode/google/chromeos/chromeos.h> - -/* convenient shorthand (in MB) */ -#define DRAM_START ((uintptr_t)_dram / MiB) -#define DRAM_SIZE (CONFIG_DRAM_SIZE_MB) -#define DRAM_END (DRAM_START + DRAM_SIZE) - -/* DMA memory for drivers */ -#define DMA_START ((uintptr_t)_dma_coherent / MiB) -#define DMA_SIZE (_dma_coherent_size / MiB) +#include "mmu.h" #define USB_ENABLE_GPIO 51 @@ -53,26 +45,6 @@ static void setup_usb(void) setup_usb_host1(); } -static void setup_mmu(void) -{ - dcache_mmu_disable(); - - /* Map Device memory. */ - mmu_config_range(0, DRAM_START, DCACHE_OFF); - /* Disable Page 0 for trapping NULL pointer references. */ - mmu_disable_range(0, 1); - /* Map DRAM memory */ - mmu_config_range(DRAM_START, DRAM_SIZE, DCACHE_WRITEBACK); - /* Map DMA memory */ - mmu_config_range(DMA_START, DMA_SIZE, DCACHE_OFF); - - mmu_disable_range(DRAM_END, 4096 - DRAM_END); - - mmu_init(); - - dcache_mmu_enable(); -} - #define TPM_RESET_GPIO 22 static void setup_tpm(void) { @@ -110,9 +82,12 @@ static void assert_sw_reset(void) static void mainboard_init(device_t dev) { + /* disable mmu and d-cache before setting up secure world.*/ + dcache_mmu_disable(); start_tzbsp(); + /* Setup mmu and d-cache again as non secure entries. */ + setup_mmu(DRAM_INITIALIZED); start_rpm(); - setup_mmu(); setup_usb(); assert_sw_reset(); setup_tpm(); |