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Diffstat (limited to 'src/arch/arm/armv7/bootblock_simple.c')
-rw-r--r--src/arch/arm/armv7/bootblock_simple.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/src/arch/arm/armv7/bootblock_simple.c b/src/arch/arm/armv7/bootblock_simple.c
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+++ b/src/arch/arm/armv7/bootblock_simple.c
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+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2010 Google 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#include <arch/cache.h>
+#include <arch/hlt.h>
+#include <arch/stages.h>
+#include <bootblock_common.h>
+#include <cbfs.h>
+#include <console/console.h>
+#include <smp/node.h>
+
+void main(void)
+{
+ const char *stage_name = "fallback/romstage";
+ void *entry;
+ uint32_t sctlr;
+
+ /* Globally disable MMU, caches, and branch prediction (these should
+ * be disabled by default on reset) */
+ sctlr = read_sctlr();
+ sctlr &= ~(SCTLR_M | SCTLR_C | SCTLR_Z | SCTLR_I);
+ write_sctlr(sctlr);
+
+ arm_invalidate_caches();
+
+ /*
+ * Re-enable icache and branch prediction. MMU and dcache will be
+ * set up later.
+ */
+ sctlr = read_sctlr();
+ sctlr |= SCTLR_Z | SCTLR_I;
+ write_sctlr(sctlr);
+
+ bootblock_cpu_init();
+ bootblock_mainboard_init();
+
+#if CONFIG_BOOTBLOCK_CONSOLE
+ console_init();
+#endif
+
+ entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA, stage_name);
+
+ if (entry) stage_exit(entry);
+ hlt();
+}