RealView: Allow access to the secure flash memory block on PB1176

This patch adds a Kconfig option for specifying whether Linux will only
be run in secure mode on the RealView PB1176 platform. Enabling it will
make the secure flash memory block (64MB @ 0x3c000000) available to
Linux.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

1 files changed, 18 insertions, 5 deletions

diff --git a/arch/arm/mach-realview/realview_pb1176.c b/arch/arm/mach-realview/realview_pb1176.c
index a64b84a7a3df..25efe71a67c7 100644
--- a/arch/arm/mach-realview/realview_pb1176.c
+++ b/arch/arm/mach-realview/realview_pb1176.c
@@ -203,11 +203,23 @@ static struct amba_device *amba_devs[] __initdata = {
 /*
  * RealView PB1176 platform devices
  */
-static struct resource realview_pb1176_flash_resource = {
-        .start                  = REALVIEW_PB1176_FLASH_BASE,
-        .end                    = REALVIEW_PB1176_FLASH_BASE + REALVIEW_PB1176_FLASH_SIZE - 1,
-        .flags                  = IORESOURCE_MEM,
+static struct resource realview_pb1176_flash_resources[] = {
+        [0] = {
+                .start          = REALVIEW_PB1176_FLASH_BASE,
+                .end            = REALVIEW_PB1176_FLASH_BASE + REALVIEW_PB1176_FLASH_SIZE - 1,
+                .flags          = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start          = REALVIEW_PB1176_SEC_FLASH_BASE,
+                .end            = REALVIEW_PB1176_SEC_FLASH_BASE + REALVIEW_PB1176_SEC_FLASH_SIZE - 1,
+                .flags          = IORESOURCE_MEM,
+        },
 };
+#ifdef CONFIG_REALVIEW_PB1176_SECURE_FLASH
+#define PB1176_FLASH_BLOCKS     2
+#else
+#define PB1176_FLASH_BLOCKS     1
+#endif
 
 static struct resource realview_pb1176_smsc911x_resources[] = {
         [0] = {
@@ -271,7 +283,8 @@ static void __init realview_pb1176_init(void)
         l2x0_init(__io_address(REALVIEW_PB1176_L220_BASE), 0x00730000, 0xfe000fff);
 #endif
 
-        realview_flash_register(&realview_pb1176_flash_resource, 1);
+        realview_flash_register(realview_pb1176_flash_resources,
+                                PB1176_FLASH_BLOCKS);
         realview_eth_register(NULL, realview_pb1176_smsc911x_resources);
         platform_device_register(&realview_i2c_device);
         realview_usb_register(realview_pb1176_isp1761_resources);