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authorDmitry Lifshitz <lifshitz@compulab.co.il>2014-12-15 16:02:58 +0200
committerTom Rini <trini@ti.com>2015-01-05 15:13:47 -0500
commit87791adc22ecb513e5f34cf51e167d3638da75da (patch)
tree20e38cf8fb76ef256a7f38538d517cd98ae3857f /arch/arm/cpu
parent8decf5d4a59a538ce918579d63cd7224266091d6 (diff)
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arm: omap: reset sata on boot
On OMAP platforms (like OMAP5) Linux kernel fails to detect a SATA device if it is used by U-Boot. It happens because U-Boot does not reset SATA controller before boot. Reset the controller on OS boot so that Linux will have a clean state to work with. Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il> Reviewed-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'arch/arm/cpu')
-rw-r--r--arch/arm/cpu/armv7/omap-common/boot-common.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/omap-common/boot-common.c b/arch/arm/cpu/armv7/omap-common/boot-common.c
index cb18908..00a1082 100644
--- a/arch/arm/cpu/armv7/omap-common/boot-common.c
+++ b/arch/arm/cpu/armv7/omap-common/boot-common.c
@@ -9,12 +9,14 @@
*/
#include <common.h>
+#include <ahci.h>
#include <spl.h>
#include <asm/omap_common.h>
#include <asm/arch/omap.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/sys_proto.h>
#include <watchdog.h>
+#include <scsi.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -143,3 +145,10 @@ void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
image_entry((u32 *)&gd->arch.omap_boot_params);
}
#endif
+
+#ifdef CONFIG_SCSI_AHCI_PLAT
+void arch_preboot_os(void)
+{
+ ahci_reset(DWC_AHSATA_BASE);
+}
+#endif