sata: implement reset_sata for dwc_ahsata
Add reset_sata() to the sata driver interface and implement it
for dwc_ahsata. This function cleans up after sata_init(), and
therefore accepts a device number like sata_init() does.
A dummy implementation is provided for the rest of the drivers.
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stefano Babic <sbabic@denx.de>
diff --git a/arch/arm/cpu/armv7/omap-common/sata.c b/arch/arm/cpu/armv7/omap-common/sata.c
index 3b4dd3f..a24baa1 100644
--- a/arch/arm/cpu/armv7/omap-common/sata.c
+++ b/arch/arm/cpu/armv7/omap-common/sata.c
@@ -74,6 +74,11 @@
return ret;
}
+int reset_sata(int dev)
+{
+ return 0;
+}
+
/* On OMAP platforms SATA provides the SCSI subsystem */
void scsi_init(void)
{
diff --git a/drivers/block/ata_piix.c b/drivers/block/ata_piix.c
index 5cf91ad..3042684 100644
--- a/drivers/block/ata_piix.c
+++ b/drivers/block/ata_piix.c
@@ -192,6 +192,11 @@
return 0;
}
+int reset_sata(int dev)
+{
+ return 0;
+}
+
static inline u8 sata_inb(unsigned long ioaddr)
{
return inb(ioaddr);
diff --git a/drivers/block/dwc_ahsata.c b/drivers/block/dwc_ahsata.c
index c68fd2f..9a2b547 100644
--- a/drivers/block/dwc_ahsata.c
+++ b/drivers/block/dwc_ahsata.c
@@ -592,6 +592,27 @@
return 0;
}
+int reset_sata(int dev)
+{
+ struct ahci_probe_ent *probe_ent =
+ (struct ahci_probe_ent *)sata_dev_desc[dev].priv;
+ struct sata_host_regs *host_mmio =
+ (struct sata_host_regs *)probe_ent->mmio_base;
+
+ if (dev < 0 || dev > (CONFIG_SYS_SATA_MAX_DEVICE - 1)) {
+ printf("The sata index %d is out of ranges\n\r", dev);
+ return -1;
+ }
+
+ setbits_le32(&host_mmio->ghc, SATA_HOST_GHC_HR);
+ while (readl(&host_mmio->ghc) & SATA_HOST_GHC_HR)
+ udelay(100);
+
+ disable_sata_clock();
+
+ return 0;
+}
+
static void dwc_ahsata_print_info(int dev)
{
block_dev_desc_t *pdev = &(sata_dev_desc[dev]);
diff --git a/drivers/block/fsl_sata.c b/drivers/block/fsl_sata.c
index ebd6261..71d7cec 100644
--- a/drivers/block/fsl_sata.c
+++ b/drivers/block/fsl_sata.c
@@ -255,6 +255,11 @@
return 0;
}
+int reset_sata(int dev)
+{
+ return 0;
+}
+
static void fsl_sata_dump_regs(fsl_sata_reg_t __iomem *reg)
{
printf("\n\rSATA: %08x\n\r", (u32)reg);
diff --git a/drivers/block/pata_bfin.c b/drivers/block/pata_bfin.c
index b7fd1cd..c2673bd 100644
--- a/drivers/block/pata_bfin.c
+++ b/drivers/block/pata_bfin.c
@@ -1009,6 +1009,11 @@
return res;
}
+int reset_sata(int dev)
+{
+ return 0;
+}
+
/* Read up to 255 sectors
*
* Returns sectors read
diff --git a/drivers/block/sata_dwc.c b/drivers/block/sata_dwc.c
index efca5ea..9e8b067 100644
--- a/drivers/block/sata_dwc.c
+++ b/drivers/block/sata_dwc.c
@@ -423,6 +423,11 @@
return rc;
}
+int reset_sata(int dev)
+{
+ return 0;
+}
+
static u8 ata_check_altstatus(struct ata_port *ap)
{
u8 val = 0;
diff --git a/drivers/block/sata_sil.c b/drivers/block/sata_sil.c
index 1f510cd..ea7d76a 100644
--- a/drivers/block/sata_sil.c
+++ b/drivers/block/sata_sil.c
@@ -571,6 +571,11 @@
return 0;
}
+int reset_sata(int dev)
+{
+ return 0;
+}
+
/*
* SATA interface between low level driver and command layer
*/
diff --git a/drivers/block/sata_sil3114.c b/drivers/block/sata_sil3114.c
index 3aa6fc9..61ffb66 100644
--- a/drivers/block/sata_sil3114.c
+++ b/drivers/block/sata_sil3114.c
@@ -702,6 +702,11 @@
return res;
}
+int reset_sata(int dev)
+{
+ return 0;
+}
+
/* Check if device is connected to port */
int sata_bus_probe (int portno)
{
diff --git a/include/sata.h b/include/sata.h
index 38f4b4a..c2bbe1a 100644
--- a/include/sata.h
+++ b/include/sata.h
@@ -3,6 +3,7 @@
#include <part.h>
int init_sata(int dev);
+int reset_sata(int dev);
int scan_sata(int dev);
ulong sata_read(int dev, ulong blknr, lbaint_t blkcnt, void *buffer);
ulong sata_write(int dev, ulong blknr, lbaint_t blkcnt, const void *buffer);