google/gale: Initial commit for Gale board support

Copy 'storm' files as a template

BUG=chrome-os-partner:49249
TEST=None. Initial code. Not sure if it will even compile
BRANCH=none

Original-Commit-Id: 4bfabf22cb33ac2aacff0ebeed54655664505148
Original-Change-Id: I94e361911b89c5159b99f3d00efbcda94f763e71
Original-Signed-off-by: Varadarajan Narayanan <varada@codeaurora.org>
Original-Signed-off-by: Kan Yan <kyan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/333177
Original-Commit-Ready: David Hendricks <dhendrix@chromium.org>
Original-Tested-by: David Hendricks <dhendrix@chromium.org>
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>

squashed:

google/gale: Remove unwanted config option

2016.02 doesn't seem to like CONSOLE_CBMEM_DUMP_TO_UART

BUG=chrome-os-partner:49249
TEST=None. Initial code not sure if it will even compile
BRANCH=none

Original-Commit-Id: 44b91a8f83515936156206f9f273e0e5c62c3f17
Original-Change-Id: I9294ff602a05e4c9573fee3b9b51f9cc5305e192
Original-Signed-off-by: Varadarajan Narayanan <varada@codeaurora.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/333302
Original-Commit-Ready: David Hendricks <dhendrix@chromium.org>
Original-Tested-by: David Hendricks <dhendrix@chromium.org>
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>

google/gale: Update ipq806x/storm references

Since the files were taken from ipq806x/storm as
template. Update those references to reflect
ipq40xx/gale.

BUG=chrome-os-partner:49249
TEST=None. Initial code not sure if it will even compile
BRANCH=none

Original-Commit-Id: fa5962b757dbb6cc9e1e6d1e33e1e09ec6cb4cd2
Original-Change-Id: Ia330367a0547ac4306ef2514dc1305e2d65f80e4
Original-Signed-off-by: Varadarajan Narayanan <varada@codeaurora.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/333292
Original-Commit-Ready: David Hendricks <dhendrix@chromium.org>
Original-Tested-by: David Hendricks <dhendrix@chromium.org>
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>

google/gale: Update fill_lb_gpios for new scheme

This updates fill_lb_gpios to follow the new scheme introduced
in CL:337176.

BUG=none
BRANCH=none
TEST=chromeos.c compiles successfully for gale

Original-Commit-Id: 635d7fd71d91552bd7470faeb5637ba1a727f940
Original-Change-Id: I6f98325918b350645b9c19b71125bc12a54953ab
Original-Signed-off-by: David Hendricks <dhendrix@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/338651

google/gale: Add '.fmd' file

BUG=chrome-os-partner:49249
TEST=None. Initial code. Not sure if it will even compile
BRANCH=none

Original-Commit-Id: 474de31f7ed0adbe54251ca363e685019091b4e7
Original-Change-Id: I4019b110af676090e8751b315dadc5b601a56178
Original-Signed-off-by: Varadarajan Narayanan <varada@codeaurora.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/333291
Original-Commit-Ready: David Hendricks <dhendrix@chromium.org>
Original-Tested-by: David Hendricks <dhendrix@chromium.org>
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>

Change-Id: Iad8e010371f3b9b92ab26eee4ba35c4f16d3732c
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: https://review.coreboot.org/14642
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

1 files changed, 68 insertions, 0 deletions

diff --git a/src/mainboard/google/gale/mmu.c b/src/mainboard/google/gale/mmu.c
new file mode 100644
index 0000000000..4d2e9a0123
--- /dev/null
+++ b/src/mainboard/google/gale/mmu.c
@@ -0,0 +1,68 @@
+/* Copyright (c) 2015, 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 <arch/cache.h>
+#include <symbols.h>
+#include "mmu.h"
+
+/* convenient shorthand (in MB) */
+#define RPM_START           ((uintptr_t)_rpm / KiB)
+#define RPM_END             ((uintptr_t)_erpm / KiB)
+#define RPM_SIZE            (RPM_END - RPM_START)
+#define SRAM_START          ((uintptr_t)_sram / KiB)
+#define SRAM_END            ((uintptr_t)_esram / KiB)
+#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)
+
+void setup_dram_mappings(enum dram_state dram)
+{
+	if (dram == DRAM_INITIALIZED) {
+		mmu_config_range(DRAM_START, DRAM_SIZE, DCACHE_WRITEBACK);
+		/* Map DMA memory */
+		mmu_config_range(DMA_START, DMA_SIZE, DCACHE_OFF);
+	} else {
+		mmu_disable_range(DRAM_START, DRAM_SIZE);
+		/* Map DMA memory */
+		mmu_disable_range(DMA_START, DMA_SIZE);
+	}
+}
+
+void setup_mmu(enum dram_state dram)
+{
+	dcache_mmu_disable();
+
+	/* start with mapping everything as strongly ordered. */
+	mmu_config_range(0, 4096, DCACHE_OFF);
+
+	/* Map Device memory. */
+	mmu_config_range_kb(RPM_START, RPM_SIZE, DCACHE_OFF);
+
+	mmu_config_range_kb(SRAM_START, SRAM_END - SRAM_START,
+		DCACHE_WRITEBACK);
+
+	/* Map DRAM memory */
+	setup_dram_mappings(dram);
+
+	mmu_disable_range(DRAM_END, 4096 - DRAM_END);
+
+	/* disable Page 0 for trapping NULL pointer references. */
+	mmu_disable_range_kb(0, 1);
+
+	mmu_init();
+
+	dcache_mmu_enable();
+}