Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@xxxxxxxxxxxx>
---
arch/arm/mach-at91/at91sam9g45_devices.c | 4 ++++
arch/arm/mach-at91/include/mach/at91sam9_ddrsdr.h | 19 +++++++++++++++++++
2 files changed, 23 insertions(+)
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index c4ca7c6..a2f26b5 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -15,6 +15,7 @@
#include <asm/hardware.h>
#include <mach/at91_pmc.h>
#include <mach/at91sam9g45_matrix.h>
+#include <mach/at91sam9_ddrsdr.h>
#include <mach/board.h>
#include <mach/gpio.h>
#include <mach/io.h>
@@ -24,6 +25,9 @@
void at91_add_device_sdram(u32 size)
{
+ if (!size)
+ size = at91sam9g45_get_ddram_size(1);
+
arm_add_mem_device("ram0", AT91_CHIPSELECT_6, size);
add_mem_device("sram0", AT91SAM9G45_SRAM_BASE,
AT91SAM9G45_SRAM_SIZE, IORESOURCE_MEM_WRITEABLE);
diff --git a/arch/arm/mach-at91/include/mach/at91sam9_ddrsdr.h b/arch/arm/mach-at91/include/mach/at91sam9_ddrsdr.h
index c90a248..f8699d7 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9_ddrsdr.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9_ddrsdr.h
@@ -175,6 +175,25 @@ static inline u32 at91_get_ddram_size(void * __iomem base, bool is_nb)
return size;
}
+#ifdef CONFIG_SOC_AT91SAM9G45
+static inline u32 at91sam9g45_get_ddram_size(int bank)
+{
+ switch (bank) {
+ case 0:
+ return at91_get_ddram_size(IOMEM(AT91SAM9G45_BASE_DDRSDRC0), false);
+ case 1:
+ return at91_get_ddram_size(IOMEM(AT91SAM9G45_BASE_DDRSDRC1), false);
+ default:
+ return 0;
+ }
+}
+#else
+static inline u32 at91sam9g45_get_ddram_size(int bank)
+{
+ return 0;
+}
+#endif
+
#ifdef CONFIG_SOC_AT91SAM9X5
static inline u32 at91sam9x5_get_ddram_size(void)
{
--
1.7.10.4
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