From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
To: barebox@lists.infradead.org
Subject: [PATCH 3/4] at91sam9g45: add autodetect sd/ddram size
Date: Sun, 27 Jan 2013 17:40:53 +0100 [thread overview]
Message-ID: <1359304854-12641-3-git-send-email-plagnioj@jcrosoft.com> (raw)
In-Reply-To: <1359304854-12641-1-git-send-email-plagnioj@jcrosoft.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
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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next prev parent reply other threads:[~2013-01-27 16:42 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-27 16:39 [PATCH 0/4] at91: sam9gx5/9g45/9n12 sd/ddrram autodetect size Jean-Christophe PLAGNIOL-VILLARD
2013-01-27 16:40 ` [PATCH 1/4] at91sam9x5: add autodetect sd/ddram size Jean-Christophe PLAGNIOL-VILLARD
2013-01-27 16:40 ` [PATCH 2/4] at91sam9n12: " Jean-Christophe PLAGNIOL-VILLARD
2013-01-27 16:40 ` Jean-Christophe PLAGNIOL-VILLARD [this message]
2013-01-27 16:40 ` [PATCH 4/4] at91: Atmel ref board sam{9x5/9n12/m109g45} EK and Ronetix pm9g45 autodetect ddr size Jean-Christophe PLAGNIOL-VILLARD
2013-01-28 7:31 ` [PATCH 0/4] at91: sam9gx5/9g45/9n12 sd/ddrram autodetect size Sascha Hauer
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