dm: ahci: Convert to use new DM PCI API

Convert this driver to use the new driver model PCI API.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

drivers/block/ahci.c

@@ -10,6 +10,7 @@
 #include <common.h>
 
 #include <command.h>
+#include <dm.h>
 #include <pci.h>
 #include <asm/processor.h>
 #include <asm/errno.h>
@@ -168,9 +169,14 @@ int ahci_reset(void __iomem *base)
 static int ahci_host_init(struct ahci_probe_ent *probe_ent)
 {
 #ifndef CONFIG_SCSI_AHCI_PLAT
+# ifdef CONFIG_DM_PCI
+	struct udevice *dev = probe_ent->dev;
+	struct pci_child_platdata *pplat = dev_get_parent_platdata(dev);
+# else
 	pci_dev_t pdev = probe_ent->dev;
-	u16 tmp16;
 	unsigned short vendor;
+# endif
+	u16 tmp16;
 #endif
 	void __iomem *mmio = probe_ent->mmio_base;
 	u32 tmp, cap_save, cmd;
@@ -193,6 +199,14 @@ static int ahci_host_init(struct ahci_probe_ent *probe_ent)
 	writel_with_flush(0xf, mmio + HOST_PORTS_IMPL);
 
 #ifndef CONFIG_SCSI_AHCI_PLAT
+# ifdef CONFIG_DM_PCI
+	if (pplat->vendor == PCI_VENDOR_ID_INTEL) {
+		u16 tmp16;
+
+		dm_pci_read_config16(dev, 0x92, &tmp16);
+		dm_pci_write_config16(dev, 0x92, tmp16 | 0xf);
+	}
+# else
 	pci_read_config_word(pdev, PCI_VENDOR_ID, &vendor);
 
 	if (vendor == PCI_VENDOR_ID_INTEL) {
@@ -201,6 +215,7 @@ static int ahci_host_init(struct ahci_probe_ent *probe_ent)
 		tmp16 |= 0xf;
 		pci_write_config_word(pdev, 0x92, tmp16);
 	}
+# endif
 #endif
 	probe_ent->cap = readl(mmio + HOST_CAP);
 	probe_ent->port_map = readl(mmio + HOST_PORTS_IMPL);
@@ -313,9 +328,15 @@ static int ahci_host_init(struct ahci_probe_ent *probe_ent)
 	tmp = readl(mmio + HOST_CTL);
 	debug("HOST_CTL 0x%x\n", tmp);
 #ifndef CONFIG_SCSI_AHCI_PLAT
+# ifdef CONFIG_DM_PCI
+	dm_pci_read_config16(dev, PCI_COMMAND, &tmp16);
+	tmp |= PCI_COMMAND_MASTER;
+	dm_pci_write_config16(dev, PCI_COMMAND, tmp16);
+# else
 	pci_read_config_word(pdev, PCI_COMMAND, &tmp16);
 	tmp |= PCI_COMMAND_MASTER;
 	pci_write_config_word(pdev, PCI_COMMAND, tmp16);
+# endif
 #endif
 	return 0;
 }
@@ -324,7 +345,11 @@ static int ahci_host_init(struct ahci_probe_ent *probe_ent)
 static void ahci_print_info(struct ahci_probe_ent *probe_ent)
 {
 #ifndef CONFIG_SCSI_AHCI_PLAT
+# ifdef CONFIG_DM_PCI
+	struct udevice *dev = probe_ent->dev;
+# else
 	pci_dev_t pdev = probe_ent->dev;
+# endif
 	u16 cc;
 #endif
 	void __iomem *mmio = probe_ent->mmio_base;
@@ -350,7 +375,11 @@ static void ahci_print_info(struct ahci_probe_ent *probe_ent)
 #ifdef CONFIG_SCSI_AHCI_PLAT
 	scc_s = "SATA";
 #else
+# ifdef CONFIG_DM_PCI
+	dm_pci_read_config16(dev, 0x0a, &cc);
+# else
 	pci_read_config_word(pdev, 0x0a, &cc);
+# endif
 	if (cc == 0x0101)
 		scc_s = "IDE";
 	else if (cc == 0x0106)
@@ -395,7 +424,11 @@ static void ahci_print_info(struct ahci_probe_ent *probe_ent)
 }
 
 #ifndef CONFIG_SCSI_AHCI_PLAT
-static int ahci_init_one(pci_dev_t pdev)
+# ifdef CONFIG_DM_PCI
+static int ahci_init_one(struct udevice *dev)
+# else
+static int ahci_init_one(pci_dev_t dev)
+# endif
 {
 	u16 vendor;
 	int rc;
@@ -407,7 +440,7 @@ static int ahci_init_one(pci_dev_t pdev)
 	}
 
 	memset(probe_ent, 0, sizeof(struct ahci_probe_ent));
-	probe_ent->dev = pdev;
+	probe_ent->dev = dev;
 
 	probe_ent->host_flags = ATA_FLAG_SATA
 				| ATA_FLAG_NO_LEGACY
@@ -417,18 +450,31 @@ static int ahci_init_one(pci_dev_t pdev)
 	probe_ent->pio_mask = 0x1f;
 	probe_ent->udma_mask = 0x7f;	/*Fixme,assume to support UDMA6 */
 
-	probe_ent->mmio_base = pci_map_bar(pdev, PCI_BASE_ADDRESS_5,
+#ifdef CONFIG_DM_PCI
+	probe_ent->mmio_base = dm_pci_map_bar(dev, PCI_BASE_ADDRESS_5,
+					      PCI_REGION_MEM);
+
+	/* Take from kernel:
+	 * JMicron-specific fixup:
+	 * make sure we're in AHCI mode
+	 */
+	dm_pci_read_config16(dev, PCI_VENDOR_ID, &vendor);
+	if (vendor == 0x197b)
+		dm_pci_write_config8(dev, 0x41, 0xa1);
+#else
+	probe_ent->mmio_base = pci_map_bar(dev, PCI_BASE_ADDRESS_5,
 					   PCI_REGION_MEM);
-	debug("ahci mmio_base=0x%p\n", probe_ent->mmio_base);
 
 	/* Take from kernel:
 	 * JMicron-specific fixup:
 	 * make sure we're in AHCI mode
 	 */
-	pci_read_config_word(pdev, PCI_VENDOR_ID, &vendor);
+	pci_read_config_word(dev, PCI_VENDOR_ID, &vendor);
 	if (vendor == 0x197b)
-		pci_write_config_byte(pdev, 0x41, 0xa1);
+		pci_write_config_byte(dev, 0x41, 0xa1);
+#endif
 
+	debug("ahci mmio_base=0x%p\n", probe_ent->mmio_base);
 	/* initialize adapter */
 	rc = ahci_host_init(probe_ent);
 	if (rc)
@@ -915,7 +961,17 @@ void scsi_low_level_init(int busdevfunc)
 	u32 linkmap;
 
 #ifndef CONFIG_SCSI_AHCI_PLAT
+# ifdef CONFIG_DM_PCI
+	struct udevice *dev;
+	int ret;
+
+	ret = dm_pci_bus_find_bdf(busdevfunc, &dev);
+	if (ret)
+		return;
+	ahci_init_one(dev);
+# else
 	ahci_init_one(busdevfunc);
+# endif
 #endif
 
 	linkmap = probe_ent->link_port_map;

include/ahci.h

@@ -145,7 +145,11 @@ struct ahci_ioports {
 };
 
 struct ahci_probe_ent {
+#ifdef CONFIG_DM_PCI
+	struct udevice *dev;
+#else
 	pci_dev_t	dev;
+#endif
 	struct ahci_ioports	port[AHCI_MAX_PORTS];
 	u32	n_ports;
 	u32	hard_port_no;