dw_mmc: cleanups

[karo-tx-uboot.git] / drivers / block / dwc_ahsata.c

diff --git a/drivers/block/dwc_ahsata.c b/drivers/block/dwc_ahsata.c
index 3569214297a1ab6aec580e744d042ed8146ed371..29f478bfbe0d35b93953bb35217970fc328d81a4 100644 (file)
--- a/drivers/block/dwc_ahsata.c
+++ b/drivers/block/dwc_ahsata.c
@@ -17,6 +17,7 @@
 #include <asm/io.h>
 #include <linux/bitops.h>
 #include <asm/arch/clock.h>
+#include <asm/arch/sys_proto.h>
 #include "dwc_ahsata.h"
 
 struct sata_port_regs {
@@ -558,6 +559,10 @@ int init_sata(int dev)
        u32 linkmap;
        struct ahci_probe_ent *probe_ent = NULL;
 
+#if defined(CONFIG_MX6)
+       if (!is_cpu_type(MXC_CPU_MX6Q) && !is_cpu_type(MXC_CPU_MX6D))
+               return 1;
+#endif
        if (dev < 0 || dev > (CONFIG_SYS_SATA_MAX_DEVICE - 1)) {
                printf("The sata index %d is out of ranges\n\r", dev);
                return -1;
@@ -859,6 +864,23 @@ u32 ata_low_level_rw_lba28(int dev, u32 blknr, lbaint_t blkcnt,
        return blkcnt;
 }
 
+int sata_port_status(int dev, int port)
+{
+       struct sata_port_regs *port_mmio;
+       struct ahci_probe_ent *probe_ent = NULL;
+
+       if (dev < 0 || dev > (CONFIG_SYS_SATA_MAX_DEVICE - 1))
+               return -EINVAL;
+
+       if (sata_dev_desc[dev].priv == NULL)
+               return -ENODEV;
+
+       probe_ent = (struct ahci_probe_ent *)sata_dev_desc[dev].priv;
+       port_mmio = (struct sata_port_regs *)probe_ent->port[port].port_mmio;
+
+       return readl(&(port_mmio->ssts)) && SATA_PORT_SSTS_DET_MASK;
+}
+
 /*
  * SATA interface between low level driver and command layer
  */