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authorStepan Moskovchenko <stepanm@codeaurora.org>2010-10-14 19:19:21 -0700
committerDavid Brown <davidb@codeaurora.org>2011-01-07 15:54:43 -0800
commit7b181446c68768e2f3231a0885095ee41261dcde (patch)
treefa77b9dd427a410e862d84d4e6a0bc7c98861b18 /arch/arm/mach-msm/scm-boot.c
parent2a1eb58a86514037c8b59eb13a14b0e2a9cc0fb3 (diff)
msm: scm-boot: Support for setting cold/warm boot addresses
Add support for setting the cold boot address of core 1 and the warm boot addresses of cores 0 and 1 using a secure domain call. Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org> Signed-off-by: David Brown <davidb@codeaurora.org>
Diffstat (limited to 'arch/arm/mach-msm/scm-boot.c')
-rw-r--r--arch/arm/mach-msm/scm-boot.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/mach-msm/scm-boot.c b/arch/arm/mach-msm/scm-boot.c
new file mode 100644
index 00000000000..45cee3e469a
--- /dev/null
+++ b/arch/arm/mach-msm/scm-boot.c
@@ -0,0 +1,39 @@
+/* Copyright (c) 2010, Code Aurora Forum. 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.
+ *
+ * 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 Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#include "scm.h"
+#include "scm-boot.h"
+
+/*
+ * Set the cold/warm boot address for one of the CPU cores.
+ */
+int scm_set_boot_addr(phys_addr_t addr, int flags)
+{
+ struct {
+ unsigned int flags;
+ phys_addr_t addr;
+ } cmd;
+
+ cmd.addr = addr;
+ cmd.flags = flags;
+ return scm_call(SCM_SVC_BOOT, SCM_BOOT_ADDR,
+ &cmd, sizeof(cmd), NULL, 0);
+}
+EXPORT_SYMBOL(scm_set_boot_addr);