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pci: msc01: 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 20:53:58 +02:00
parent 201d49d94a
commit 8bee3a38a0
1 changed files with 71 additions and 1 deletions
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72
drivers/pci/pci_msc01.c
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@ -4,7 +4,7 @@
* Author: Paul Burton <paul.burton@mips.com>
*/
#include <common.h>
#include <dm.h>
#include <init.h>
#include <msc01.h>
#include <pci.h>
@ -62,6 +62,7 @@ static int msc01_config_access(struct msc01_pci_controller *msc01,
return 0;
}
#if !IS_ENABLED(CONFIG_DM_PCI)
static int msc01_read_config_dword(struct pci_controller *hose, pci_dev_t dev,
int where, u32 *value)
{
@ -123,3 +124,72 @@ void msc01_pci_init(void *base, unsigned long sys_bus, unsigned long sys_phys,
pci_register_hose(hose);
hose->last_busno = pci_hose_scan(hose);
}
#else
static int msc01_pci_read_config(const struct udevice *dev, pci_dev_t bdf,
uint where, ulong *val, enum pci_size_t size)
{
struct msc01_pci_controller *msc01 = dev_get_priv(dev);
u32 data = 0;
if (msc01_config_access(msc01, 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 msc01_pci_write_config(struct udevice *dev, pci_dev_t bdf,
uint where, ulong val, enum pci_size_t size)
{
struct msc01_pci_controller *msc01 = dev_get_priv(dev);
u32 data = 0;
if (size == PCI_SIZE_32) {
data = val;
} else {
u32 old;
if (msc01_config_access(msc01, PCI_ACCESS_READ, bdf, where, &old))
return 0;
data = pci_conv_size_to_32(old, val, where, size);
}
msc01_config_access(msc01, PCI_ACCESS_WRITE, bdf, where, &data);
return 0;
}
static int msc01_pci_probe(struct udevice *dev)
{
struct msc01_pci_controller *msc01 = dev_get_priv(dev);
msc01->base = dev_remap_addr(dev);
if (!msc01->base)
return -EINVAL;
return 0;
}
static const struct dm_pci_ops msc01_pci_ops = {
.read_config = msc01_pci_read_config,
.write_config = msc01_pci_write_config,
};
static const struct udevice_id msc01_pci_ids[] = {
{ .compatible = "mips,pci-msc01" },
{ }
};
U_BOOT_DRIVER(msc01_pci) = {
.name = "msc01_pci",
.id = UCLASS_PCI,
.of_match = msc01_pci_ids,
.ops = &msc01_pci_ops,
.probe = msc01_pci_probe,
.priv_auto = sizeof(struct msc01_pci_controller),
};
#endif