summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-omap2/omap4-common.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-omap2/omap4-common.c')
-rw-r--r--arch/arm/mach-omap2/omap4-common.c27
1 files changed, 18 insertions, 9 deletions
diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index 40a8fbc07e4..70de277f5c1 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -24,12 +24,14 @@
#include <plat/irqs.h>
#include <plat/sram.h>
+#include <plat/omap-secure.h>
#include <mach/hardware.h>
#include <mach/omap-wakeupgen.h>
#include "common.h"
#include "omap4-sar-layout.h"
+#include <linux/export.h>
#ifdef CONFIG_CACHE_L2X0
static void __iomem *l2cache_base;
@@ -43,6 +45,9 @@ static void __iomem *sar_ram_base;
void __iomem *dram_sync, *sram_sync;
+static phys_addr_t paddr;
+static u32 size;
+
void omap_bus_sync(void)
{
if (dram_sync && sram_sync) {
@@ -51,19 +56,22 @@ void omap_bus_sync(void)
isb();
}
}
+EXPORT_SYMBOL(omap_bus_sync);
-static int __init omap_barriers_init(void)
+/* Steal one page physical memory for barrier implementation */
+int __init omap_barrier_reserve_memblock(void)
{
- struct map_desc dram_io_desc[1];
- phys_addr_t paddr;
- u32 size;
-
- if (!cpu_is_omap44xx())
- return -ENODEV;
size = ALIGN(PAGE_SIZE, SZ_1M);
paddr = arm_memblock_steal(size, SZ_1M);
+ return 0;
+}
+
+void __init omap_barriers_init(void)
+{
+ struct map_desc dram_io_desc[1];
+
dram_io_desc[0].virtual = OMAP4_DRAM_BARRIER_VA;
dram_io_desc[0].pfn = __phys_to_pfn(paddr);
dram_io_desc[0].length = size;
@@ -75,9 +83,10 @@ static int __init omap_barriers_init(void)
pr_info("OMAP4: Map 0x%08llx to 0x%08lx for dram barrier\n",
(long long) paddr, dram_io_desc[0].virtual);
- return 0;
}
-core_initcall(omap_barriers_init);
+#else
+void __init omap_barriers_init(void)
+{}
#endif
void __init gic_init_irq(void)