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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
parent2a1eb58a86514037c8b59eb13a14b0e2a9cc0fb3 (diff)
downloadop-kernel-dev-7b181446c68768e2f3231a0885095ee41261dcde.zip
op-kernel-dev-7b181446c68768e2f3231a0885095ee41261dcde.tar.gz
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')
-rw-r--r--arch/arm/mach-msm/Makefile2
-rw-r--r--arch/arm/mach-msm/scm-boot.c39
-rw-r--r--arch/arm/mach-msm/scm-boot.h38
3 files changed, 78 insertions, 1 deletions
diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile
index b90ed54..5765ef1 100644
--- a/arch/arm/mach-msm/Makefile
+++ b/arch/arm/mach-msm/Makefile
@@ -18,7 +18,7 @@ obj-$(CONFIG_MSM_PROC_COMM) += clock.o
obj-$(CONFIG_ARCH_QSD8X50) += sirc.o
obj-$(CONFIG_MSM_SMD) += smd.o smd_debug.o
obj-$(CONFIG_MSM_SMD) += last_radio_log.o
-obj-$(CONFIG_MSM_SCM) += scm.o
+obj-$(CONFIG_MSM_SCM) += scm.o scm-boot.o
obj-$(CONFIG_MACH_TROUT) += board-trout.o board-trout-gpio.o board-trout-mmc.o devices-msm7x00.o
obj-$(CONFIG_MACH_TROUT) += board-trout.o board-trout-gpio.o board-trout-mmc.o board-trout-panel.o devices-msm7x00.o
diff --git a/arch/arm/mach-msm/scm-boot.c b/arch/arm/mach-msm/scm-boot.c
new file mode 100644
index 0000000..45cee3e
--- /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);
diff --git a/arch/arm/mach-msm/scm-boot.h b/arch/arm/mach-msm/scm-boot.h
new file mode 100644
index 0000000..68f9b61
--- /dev/null
+++ b/arch/arm/mach-msm/scm-boot.h
@@ -0,0 +1,38 @@
+/* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ * * Neither the name of Code Aurora Forum, Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __MACH_SCM_BOOT_H
+#define __MACH_SCM_BOOT_H
+
+#define SCM_BOOT_ADDR 0x1
+#define SCM_FLAG_COLDBOOT_CPU1 0x1
+#define SCM_FLAG_WARMBOOT_CPU1 0x2
+#define SCM_FLAG_WARMBOOT_CPU0 0x4
+
+int scm_set_boot_addr(phys_addr_t addr, int flags);
+
+#endif
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