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https://github.com/brain-hackers/u-boot-brain
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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>
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@ -9,12 +9,14 @@
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*/
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#include <common.h>
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#include <ahci.h>
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#include <spl.h>
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#include <asm/omap_common.h>
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#include <asm/arch/omap.h>
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#include <asm/arch/mmc_host_def.h>
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#include <asm/arch/sys_proto.h>
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#include <watchdog.h>
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#include <scsi.h>
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DECLARE_GLOBAL_DATA_PTR;
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@ -143,3 +145,10 @@ void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
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image_entry((u32 *)&gd->arch.omap_boot_params);
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}
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#endif
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#ifdef CONFIG_SCSI_AHCI_PLAT
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void arch_preboot_os(void)
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{
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ahci_reset(DWC_AHSATA_BASE);
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}
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#endif
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