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ahci: Support non-PCI controllers

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At present the AHCI SCSI driver only supports PCI with driver model.
Rename the existing function to indicate this and add support for adding
a non-PCI controller .

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2017-07-04 13:31:18 -06:00
committed by Jaehoon Chung
parent 6364a5d4bd
commit 745a94f352
3 changed files with 31 additions and 11 deletions
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2
arch/x86/cpu/ivybridge/sata.c
View File

@@ -236,7 +236,7 @@ static int bd82x6x_sata_probe(struct udevice *dev)
bd82x6x_sata_enable(dev); bd82x6x_sata_enable(dev);
else { else {
bd82x6x_sata_init(dev, pch); bd82x6x_sata_init(dev, pch);
ret = ahci_probe_scsi(dev); ret = ahci_probe_scsi_pci(dev);
if (ret) if (ret)
return ret; return ret;
} }

26
drivers/ata/ahci.c
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@@ -431,7 +431,7 @@ static void ahci_print_info(struct ahci_uc_priv *uc_priv)
cap2 & (1 << 0) ? "boh " : ""); cap2 & (1 << 0) ? "boh " : "");
} }
#ifndef CONFIG_SCSI_AHCI_PLAT #if defined(CONFIG_DM_SCSI) || !defined(CONFIG_SCSI_AHCI_PLAT)
# if defined(CONFIG_DM_PCI) || defined(CONFIG_DM_SCSI) # if defined(CONFIG_DM_PCI) || defined(CONFIG_DM_SCSI)
static int ahci_init_one(struct ahci_uc_priv *uc_priv, struct udevice *dev) static int ahci_init_one(struct ahci_uc_priv *uc_priv, struct udevice *dev)
# else # else
@@ -1158,11 +1158,8 @@ int ahci_bind_scsi(struct udevice *ahci_dev, struct udevice **devp)
return 0; return 0;
} }
int ahci_probe_scsi(struct udevice *ahci_dev) int ahci_probe_scsi(struct udevice *ahci_dev, ulong base)
{ {
#ifdef CONFIG_SCSI_AHCI_PLAT
return -ENOSYS; /* TODO(sjg@chromium.org): Support non-PCI AHCI */
#else
struct ahci_uc_priv *uc_priv; struct ahci_uc_priv *uc_priv;
struct scsi_platdata *uc_plat; struct scsi_platdata *uc_plat;
struct udevice *dev; struct udevice *dev;
@@ -1172,22 +1169,33 @@ int ahci_probe_scsi(struct udevice *ahci_dev)
if (!dev) if (!dev)
return -ENODEV; return -ENODEV;
uc_plat = dev_get_uclass_platdata(dev); uc_plat = dev_get_uclass_platdata(dev);
uc_plat->base = (ulong)dm_pci_map_bar(ahci_dev, PCI_BASE_ADDRESS_5, uc_plat->base = base;
PCI_REGION_MEM);
uc_plat->max_lun = 1; uc_plat->max_lun = 1;
uc_plat->max_id = 2; uc_plat->max_id = 2;
uc_priv = dev_get_uclass_priv(dev);
uc_priv = dev_get_uclass_priv(ahci_dev);
ret = ahci_init_one(uc_priv, dev); ret = ahci_init_one(uc_priv, dev);
if (ret) if (ret)
return ret; return ret;
ret = ahci_start_ports(uc_priv); ret = ahci_start_ports(uc_priv);
if (ret) if (ret)
return ret; return ret;
#endif
return 0; return 0;
} }
#ifdef CONFIG_DM_PCI
int ahci_probe_scsi_pci(struct udevice *ahci_dev)
{
ulong base;
base = (ulong)dm_pci_map_bar(ahci_dev, PCI_BASE_ADDRESS_5,
PCI_REGION_MEM);
return ahci_probe_scsi(ahci_dev, base);
}
#endif
struct scsi_ops scsi_ops = { struct scsi_ops scsi_ops = {
.exec = ahci_scsi_exec, .exec = ahci_scsi_exec,
.bus_reset = ahci_scsi_bus_reset, .bus_reset = ahci_scsi_bus_reset,

14
include/ahci.h
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@@ -218,8 +218,20 @@ int ahci_bind_scsi(struct udevice *ahci_dev, struct udevice **devp);
* devices it finds. * devices it finds.
* *
* @ahci_dev: AHCI parent device * @ahci_dev: AHCI parent device
* @base: Base address of AHCI port
* @return 0 if OK, -ve on error * @return 0 if OK, -ve on error
*/ */
int ahci_probe_scsi(struct udevice *ahci_dev); int ahci_probe_scsi(struct udevice *ahci_dev, ulong base);
/**
* ahci_probe_scsi_pci() - probe and scan the attached SCSI bus on PCI
*
* Note that the SCSI device will itself bind block devices for any storage
* devices it finds.
*
* @ahci_dev: AHCI parent device
* @return 0 if OK, -ve on error
*/
int ahci_probe_scsi_pci(struct udevice *ahci_dev);
#endif #endif