[U-Boot] [PATCH v2 21/26] dm: ahci: Convert to use new DM PCI API
Simon Glass
sjg at chromium.org
Sun Nov 29 21:18:06 CET 2015
Convert this driver to use the new driver model PCI API.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
Changes in v2:
- Fix use of 'pdev' instead of 'dev'
- Get the vendor from the PCI parent platdata
- Use pci_bus_find_bdf()
drivers/block/ahci.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++------
include/ahci.h | 4 +++
2 files changed, 67 insertions(+), 7 deletions(-)
diff --git a/drivers/block/ahci.c b/drivers/block/ahci.c
index 1ad638e..e5f4a04 100644
--- a/drivers/block/ahci.c
+++ b/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;
diff --git a/include/ahci.h b/include/ahci.h
index 0bdedac..a956c6f 100644
--- a/include/ahci.h
+++ b/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;
--
2.6.0.rc2.230.g3dd15c0
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