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Diffstat (limited to 'arch/arm/mach-omap2/omap4-common.c')
-rw-r--r--arch/arm/mach-omap2/omap4-common.c25
1 files changed, 16 insertions, 9 deletions
diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index 40a8fbc07e4b..ebc595091312 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -24,6 +24,7 @@
24 24
25#include <plat/irqs.h> 25#include <plat/irqs.h>
26#include <plat/sram.h> 26#include <plat/sram.h>
27#include <plat/omap-secure.h>
27 28
28#include <mach/hardware.h> 29#include <mach/hardware.h>
29#include <mach/omap-wakeupgen.h> 30#include <mach/omap-wakeupgen.h>
@@ -43,6 +44,9 @@ static void __iomem *sar_ram_base;
43 44
44void __iomem *dram_sync, *sram_sync; 45void __iomem *dram_sync, *sram_sync;
45 46
47static phys_addr_t paddr;
48static u32 size;
49
46void omap_bus_sync(void) 50void omap_bus_sync(void)
47{ 51{
48 if (dram_sync && sram_sync) { 52 if (dram_sync && sram_sync) {
@@ -52,18 +56,20 @@ void omap_bus_sync(void)
52 } 56 }
53} 57}
54 58
55static int __init omap_barriers_init(void) 59/* Steal one page physical memory for barrier implementation */
60int __init omap_barrier_reserve_memblock(void)
56{ 61{
57 struct map_desc dram_io_desc[1];
58 phys_addr_t paddr;
59 u32 size;
60
61 if (!cpu_is_omap44xx())
62 return -ENODEV;
63 62
64 size = ALIGN(PAGE_SIZE, SZ_1M); 63 size = ALIGN(PAGE_SIZE, SZ_1M);
65 paddr = arm_memblock_steal(size, SZ_1M); 64 paddr = arm_memblock_steal(size, SZ_1M);
66 65
66 return 0;
67}
68
69void __init omap_barriers_init(void)
70{
71 struct map_desc dram_io_desc[1];
72
67 dram_io_desc[0].virtual = OMAP4_DRAM_BARRIER_VA; 73 dram_io_desc[0].virtual = OMAP4_DRAM_BARRIER_VA;
68 dram_io_desc[0].pfn = __phys_to_pfn(paddr); 74 dram_io_desc[0].pfn = __phys_to_pfn(paddr);
69 dram_io_desc[0].length = size; 75 dram_io_desc[0].length = size;
@@ -75,9 +81,10 @@ static int __init omap_barriers_init(void)
75 pr_info("OMAP4: Map 0x%08llx to 0x%08lx for dram barrier\n", 81 pr_info("OMAP4: Map 0x%08llx to 0x%08lx for dram barrier\n",
76 (long long) paddr, dram_io_desc[0].virtual); 82 (long long) paddr, dram_io_desc[0].virtual);
77 83
78 return 0;
79} 84}
80core_initcall(omap_barriers_init); 85#else
86void __init omap_barriers_init(void)
87{}
81#endif 88#endif
82 89
83void __init gic_init_irq(void) 90void __init gic_init_irq(void)