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pci: gt64120: convert to driver model

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This driver is currently only used on MIPS Malta boards.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>

Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Daniel Schwierzeck 2021-07-15 20:53:57 +02:00
parent a45343a0aa
commit 201d49d94a
1 changed files with 73 additions and 1 deletions
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74
drivers/pci/pci_gt64120.c
View file

@ -8,7 +8,7 @@
* Maciej W. Rozycki <macro@mips.com>
*/
#include <common.h>
#include <dm.h>
#include <gt64120.h>
#include <init.h>
#include <log.h>
@ -114,6 +114,7 @@ static int gt_config_access(struct gt64120_pci_controller *gt,
return 0;
}
#if !IS_ENABLED(CONFIG_DM_PCI)
static int gt_read_config_dword(struct pci_controller *hose, pci_dev_t dev,
int where, u32 *value)
{
@ -175,3 +176,74 @@ void gt64120_pci_init(void *regs, unsigned long sys_bus, unsigned long sys_phys,
pci_register_hose(hose);
hose->last_busno = pci_hose_scan(hose);
}
#else
static int gt64120_pci_read_config(const struct udevice *dev, pci_dev_t bdf,
uint where, ulong *val,
enum pci_size_t size)
{
struct gt64120_pci_controller *gt = dev_get_priv(dev);
u32 data = 0;
if (gt_config_access(gt, PCI_ACCESS_READ, bdf, where, &data)) {
*val = pci_get_ff(size);
return 0;
}
*val = pci_conv_32_to_size(data, where, size);
return 0;
}
static int gt64120_pci_write_config(struct udevice *dev, pci_dev_t bdf,
uint where, ulong val,
enum pci_size_t size)
{
struct gt64120_pci_controller *gt = dev_get_priv(dev);
u32 data = 0;
if (size == PCI_SIZE_32) {
data = val;
} else {
u32 old;
if (gt_config_access(gt, PCI_ACCESS_READ, bdf, where, &old))
return 0;
data = pci_conv_size_to_32(old, val, where, size);
}
gt_config_access(gt, PCI_ACCESS_WRITE, bdf, where, &data);
return 0;
}
static int gt64120_pci_probe(struct udevice *dev)
{
struct gt64120_pci_controller *gt = dev_get_priv(dev);
gt->regs = dev_remap_addr(dev);
if (!gt->regs)
return -EINVAL;
return 0;
}
static const struct dm_pci_ops gt64120_pci_ops = {
.read_config = gt64120_pci_read_config,
.write_config = gt64120_pci_write_config,
};
static const struct udevice_id gt64120_pci_ids[] = {
{ .compatible = "marvell,pci-gt64120" },
{ }
};
U_BOOT_DRIVER(gt64120_pci) = {
.name = "gt64120_pci",
.id = UCLASS_PCI,
.of_match = gt64120_pci_ids,
.ops = &gt64120_pci_ops,
.probe = gt64120_pci_probe,
.priv_auto = sizeof(struct gt64120_pci_controller),
};
#endif