ata: ahci: support hisilicon device
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Signed-off-by: Kefeng Wang <kefeng.wang@linaro.org>
diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
index b62a3ab..5b9b8cb 100644
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -20,6 +20,8 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/device.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/libata.h>
#include <linux/ahci_platform.h>
@@ -31,6 +33,7 @@
AHCI, /* standard platform ahci */
IMX53_AHCI, /* ahci on i.mx53 */
STRICT_AHCI, /* delayed DMA engine start */
+ HIP04_AHCI, /* ahci on HiP04 */
};
static struct platform_device_id ahci_devtype[] = {
@@ -81,12 +84,39 @@
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_platform_ops,
},
+ [HIP04_AHCI] = {
+ AHCI_HFLAGS (AHCI_HFLAG_NO_FBS),
+ .flags = AHCI_FLAG_COMMON,
+ .pio_mask = ATA_PIO4,
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &ahci_platform_ops,
+ },
};
static struct scsi_host_template ahci_platform_sht = {
AHCI_SHT("ahci_platform"),
};
+static const struct of_device_id ahci_of_match[] = {
+ { .compatible = "snps,spear-ahci", },
+ { .compatible = "snps,exynos5440-ahci", },
+ { .compatible = "ibm,476gtr-ahci", },
+ { .compatible = "hisilicon,hisi-ahci", .data = (void *)HIP04_AHCI, },
+ {},
+};
+MODULE_DEVICE_TABLE(of, ahci_of_match);
+
+static int ahci_match_of_id(struct platform_device *pdev,
+ enum ahci_type *ahci_type)
+{
+ const struct of_device_id *of_id = of_match_device(ahci_of_match,
+ &pdev->dev);
+ if (!of_id)
+ return 1;
+ *ahci_type = (u32)(of_id->data);
+ return 0;
+}
+
static int ahci_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -97,6 +127,7 @@
struct ahci_host_priv *hpriv;
struct ata_host *host;
struct resource *mem;
+ enum ahci_type ahci_type;
int irq;
int n_ports;
int i;
@@ -114,7 +145,9 @@
return -EINVAL;
}
- if (pdata && pdata->ata_port_info)
+ if (!ahci_match_of_id(pdev, &ahci_type))
+ pi = ahci_port_info[ahci_type];
+ else if (pdata && pdata->ata_port_info)
pi = *pdata->ata_port_info;
hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
@@ -326,15 +359,6 @@
static SIMPLE_DEV_PM_OPS(ahci_pm_ops, ahci_suspend, ahci_resume);
-static const struct of_device_id ahci_of_match[] = {
- { .compatible = "snps,spear-ahci", },
- { .compatible = "snps,exynos5440-ahci", },
- { .compatible = "ibm,476gtr-ahci", },
- { .compatible = "hisilicon,hisi-ahci", },
- {},
-};
-MODULE_DEVICE_TABLE(of, ahci_of_match);
-
static struct platform_driver ahci_driver = {
.probe = ahci_probe,
.remove = ata_platform_remove_one,
