avr32: Use uncached() macro to get an address for SDRAM init

The paging system which is required to set up caching properties has not
yet been initialized when the SDRAM is initialized. So when the
map_physmem() function is converted to return the physical address
unchanged, the SDRAM initialization will break on some boards.

The avr32-specific uncached() macro will return an address which will
always cause uncached accessed to be made. Since this happens in the
board code, using avr32-specific features should be ok, and will allow
the SDRAM initialization to keep working.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>

diff --git a/board/atmel/atngw100/atngw100.c b/board/atmel/atngw100/atngw100.c
index 004d8daa900b2c8ba630623461b0e3d67cdb7b7b..4580f550df98a4fcab81adda265c0aca43aa498a 100644 (file)
--- a/board/atmel/atngw100/atngw100.c
+++ b/board/atmel/atngw100/atngw100.c
@@ -75,13 +75,11 @@ phys_size_t initdram(int board_type)
        unsigned long actual_size;
        void *sdram_base;
 
-       sdram_base = map_physmem(EBI_SDRAM_BASE, EBI_SDRAM_SIZE, MAP_NOCACHE);
+       sdram_base = uncached(EBI_SDRAM_BASE);
 
        expected_size = sdram_init(sdram_base, &sdram_config);
        actual_size = get_ram_size(sdram_base, expected_size);
 
-       unmap_physmem(sdram_base, EBI_SDRAM_SIZE);
-
        if (expected_size != actual_size)
                printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
                                actual_size >> 20, expected_size >> 20);

diff --git a/board/atmel/atstk1000/atstk1000.c b/board/atmel/atstk1000/atstk1000.c
index c36cb5717be4fc303b1edc3e4798f9e5f1c25cc9..d91d5940b5e11b90670077997941c9928d674a9a 100644 (file)
--- a/board/atmel/atstk1000/atstk1000.c
+++ b/board/atmel/atstk1000/atstk1000.c
@@ -97,13 +97,11 @@ phys_size_t initdram(int board_type)
        unsigned long actual_size;
        void *sdram_base;
 
-       sdram_base = map_physmem(EBI_SDRAM_BASE, EBI_SDRAM_SIZE, MAP_NOCACHE);
+       sdram_base = uncached(EBI_SDRAM_BASE);
 
        expected_size = sdram_init(sdram_base, &sdram_config);
        actual_size = get_ram_size(sdram_base, expected_size);
 
-       unmap_physmem(sdram_base, EBI_SDRAM_SIZE);
-
        if (expected_size != actual_size)
                printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
                                actual_size >> 20, expected_size >> 20);

diff --git a/board/earthlcd/favr-32-ezkit/favr-32-ezkit.c b/board/earthlcd/favr-32-ezkit/favr-32-ezkit.c
index 8af680fe914ce78cab7ab74f321ad5cb5dc9dd6d..d2843c9d2b82c23cc0e157a5bcfcdbcf06d6135c 100644 (file)
--- a/board/earthlcd/favr-32-ezkit/favr-32-ezkit.c
+++ b/board/earthlcd/favr-32-ezkit/favr-32-ezkit.c
@@ -68,13 +68,11 @@ phys_size_t initdram(int board_type)
        unsigned long actual_size;
        void *sdram_base;
 
-       sdram_base = map_physmem(EBI_SDRAM_BASE, EBI_SDRAM_SIZE, MAP_NOCACHE);
+       sdram_base = uncached(EBI_SDRAM_BASE);
 
        expected_size = sdram_init(sdram_base, &sdram_config);
        actual_size = get_ram_size(sdram_base, expected_size);
 
-       unmap_physmem(sdram_base, EBI_SDRAM_SIZE);
-
        if (expected_size != actual_size)
                printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
                                actual_size >> 20, expected_size >> 20);

diff --git a/board/mimc/mimc200/mimc200.c b/board/mimc/mimc200/mimc200.c
index cc0f13712186192367decf8b7e00d701f222969e..994066943d163c05f48ecf87b99094f259a937e8 100644 (file)
--- a/board/mimc/mimc200/mimc200.c
+++ b/board/mimc/mimc200/mimc200.c
@@ -153,13 +153,11 @@ phys_size_t initdram(int board_type)
        unsigned long actual_size;
        void *sdram_base;
 
-       sdram_base = map_physmem(EBI_SDRAM_BASE, EBI_SDRAM_SIZE, MAP_NOCACHE);
+       sdram_base = uncached(EBI_SDRAM_BASE);
 
        expected_size = sdram_init(sdram_base, &sdram_config);
        actual_size = get_ram_size(sdram_base, expected_size);
 
-       unmap_physmem(sdram_base, EBI_SDRAM_SIZE);
-
        if (expected_size != actual_size)
                printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
                                actual_size >> 20, expected_size >> 20);

diff --git a/board/miromico/hammerhead/hammerhead.c b/board/miromico/hammerhead/hammerhead.c
index 8b3e22cd9ece1ee1d3e21706b2ec52a611706c58..5ab999e4693345c8643486d2e22816111c2ac347 100644 (file)
--- a/board/miromico/hammerhead/hammerhead.c
+++ b/board/miromico/hammerhead/hammerhead.c
@@ -80,13 +80,11 @@ phys_size_t initdram(int board_type)
        unsigned long actual_size;
        void *sdram_base;
 
-       sdram_base = map_physmem(EBI_SDRAM_BASE, EBI_SDRAM_SIZE, MAP_NOCACHE);
+       sdram_base = uncached(EBI_SDRAM_BASE);
 
        expected_size = sdram_init(sdram_base, &sdram_config);
        actual_size = get_ram_size(sdram_base, expected_size);
 
-       unmap_physmem(sdram_base, EBI_SDRAM_SIZE);
-
        if (expected_size != actual_size)
                printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
                       actual_size >> 20, expected_size >> 20);