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
---
Changes in v2: - add empty line before return statements
drivers/pci/pci_msc01.c | 72 ++++++++++++++++++++++++++++++++++++++++- 1 file changed, 71 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/pci_msc01.c b/drivers/pci/pci_msc01.c index 04838200a8..c17da475d0 100644 --- a/drivers/pci/pci_msc01.c +++ b/drivers/pci/pci_msc01.c @@ -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