Define the new common function sata_port_status() which can be used to query the sata driver for the state of ports, and implement it for dwc_ahsata.
Cc: Stefano Babic sbabic@denx.de Cc: Tom Rini trini@ti.com Signed-off-by: Nikita Kiryanov nikita@compulab.co.il --- drivers/block/dwc_ahsata.c | 17 +++++++++++++++++ include/sata.h | 1 + 2 files changed, 18 insertions(+)
diff --git a/drivers/block/dwc_ahsata.c b/drivers/block/dwc_ahsata.c index 15d65d7..e122ed9 100644 --- a/drivers/block/dwc_ahsata.c +++ b/drivers/block/dwc_ahsata.c @@ -864,6 +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 -1; + + if (sata_dev_desc[dev].priv == NULL) + return -1; + + 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 */ diff --git a/include/sata.h b/include/sata.h index c95dc56..38f4b4a 100644 --- a/include/sata.h +++ b/include/sata.h @@ -9,6 +9,7 @@ ulong sata_write(int dev, ulong blknr, lbaint_t blkcnt, const void *buffer);
int sata_initialize(void); int __sata_initialize(void); +int sata_port_status(int dev, int port);
extern block_dev_desc_t sata_dev_desc[];