The Intel Fast SPI interface is similar to ICH. Add of-platdata support for this using the "intel,fast-spi" compatible string.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v4: - Use the new pci_ofplat_get_devfn() function
Changes in v3: None Changes in v2: None
drivers/spi/ich.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-)
diff --git a/drivers/spi/ich.c b/drivers/spi/ich.c index 17b7a0ba0b..7d66b900c8 100644 --- a/drivers/spi/ich.c +++ b/drivers/spi/ich.c @@ -10,6 +10,7 @@ #include <common.h> #include <div64.h> #include <dm.h> +#include <dt-structs.h> #include <errno.h> #include <malloc.h> #include <pch.h> @@ -28,9 +29,13 @@ #endif
struct ich_spi_platdata { +#if CONFIG_IS_ENABLED(OF_PLATDATA) + struct dtd_intel_fast_spi dtplat; +#endif enum ich_version ich_version; /* Controller version, 7 or 9 */ bool lockdown; /* lock down controller settings? */ ulong mmio_base; /* Base of MMIO registers */ + pci_dev_t bdf; /* PCI address used by of-platdata */ };
static u8 ich_readb(struct ich_spi_priv *priv, int reg) @@ -594,6 +599,8 @@ static int ich_spi_child_pre_probe(struct udevice *dev) static int ich_spi_ofdata_to_platdata(struct udevice *dev) { struct ich_spi_platdata *plat = dev_get_platdata(dev); + +#if !CONFIG_IS_ENABLED(OF_PLATDATA) struct ich_spi_priv *priv = dev_get_priv(dev);
/* Find a PCH if there is one */ @@ -603,8 +610,13 @@ static int ich_spi_ofdata_to_platdata(struct udevice *dev)
plat->ich_version = dev_get_driver_data(dev); plat->lockdown = dev_read_bool(dev, "intel,spi-lock-down"); - pch_get_spi_base(priv->pch, &plat->mmio_base); +#else + plat->ich_version = ICHV_APL; + plat->mmio_base = plat->dtplat.early_regs[0]; + plat->bdf = pci_ofplat_get_devfn(plat->dtplat.reg[0]); +#endif + debug("%s: mmio_base=%lx\n", __func__, plat->mmio_base);
return 0; } @@ -632,8 +644,8 @@ static const struct udevice_id ich_spi_ids[] = { { } };
-U_BOOT_DRIVER(ich_spi) = { - .name = "ich_spi", +U_BOOT_DRIVER(intel_fast_spi) = { + .name = "intel_fast_spi", .id = UCLASS_SPI, .of_match = ich_spi_ids, .ops = &ich_spi_ops,