diff options
| author | Simon Glass <sjg@chromium.org> | 2019-12-07 07:42:47 +0300 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2019-12-15 06:44:23 +0300 |
| commit | 92842147c3113e83462fcad00fa5cd343c4b945e (patch) | |
| tree | 63c6e4f307a3a0b8ae089493d98b278890a8e854 /drivers/spi | |
| parent | 1facebd18fd7369e7629bce1d4fe78d5432fd773 (diff) | |
| download | u-boot-92842147c3113e83462fcad00fa5cd343c4b945e.tar.xz | |
spi: ich: Add support for get_mmap() method
Add this method so that the memory-mapped location of the SPI flash can
be queried.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/ich.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/spi/ich.c b/drivers/spi/ich.c index db895a396d..160ec370fd 100644 --- a/drivers/spi/ich.c +++ b/drivers/spi/ich.c @@ -611,6 +611,37 @@ static int ich_spi_exec_op(struct spi_slave *slave, const struct spi_mem_op *op) return ret; } +static int ich_get_mmap_bus(struct udevice *bus, ulong *map_basep, + uint *map_sizep, uint *offsetp) +{ + pci_dev_t spi_bdf; + +#if !CONFIG_IS_ENABLED(OF_PLATDATA) + struct pci_child_platdata *pplat = dev_get_parent_platdata(bus); + + spi_bdf = pplat->devfn; +#else + struct ich_spi_platdata *plat = dev_get_platdata(bus); + + /* + * We cannot rely on plat->bdf being set up yet since this method can + * be called before the device is probed. Use the of-platdata directly + * instead. + */ + spi_bdf = pci_ofplat_get_devfn(plat->dtplat.reg[0]); +#endif + + return fast_spi_get_bios_mmap(spi_bdf, map_basep, map_sizep, offsetp); +} + +static int ich_get_mmap(struct udevice *dev, ulong *map_basep, uint *map_sizep, + uint *offsetp) +{ + struct udevice *bus = dev_get_parent(dev); + + return ich_get_mmap_bus(bus, map_basep, map_sizep, offsetp); +} + static int ich_spi_adjust_size(struct spi_slave *slave, struct spi_mem_op *op) { unsigned int page_offset; @@ -835,6 +866,7 @@ static const struct dm_spi_ops ich_spi_ops = { .set_speed = ich_spi_set_speed, .set_mode = ich_spi_set_mode, .mem_ops = &ich_controller_mem_ops, + .get_mmap = ich_get_mmap, /* * cs_info is not needed, since we require all chip selects to be * in the device tree explicitly |