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spi: Add of-platdata support to SPI and SPI flash

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Some boards may want to use these subsystems with of-platdata in SPL. Add
support for this by avoiding any device tree access in this case.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2016-11-13 14:22:01 -07:00
parent d844efec47
commit 71634f289d
2 changed files with 13 additions and 2 deletions
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2
drivers/mtd/spi/spi_flash.c
View File

@ -1138,7 +1138,7 @@ int spi_flash_scan(struct spi_flash *flash)
return ret;
#endif
#if CONFIG_IS_ENABLED(OF_CONTROL)
#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
ret = spi_flash_decode_fdt(gd->fdt_blob, flash);
if (ret) {
debug("SF: FDT decode error\n");

13
drivers/spi/spi-uclass.c
View File

@ -108,6 +108,7 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen,
return dm_spi_xfer(slave->dev, bitlen, dout, din, flags);
}
#if !CONFIG_IS_ENABLED(OF_PLATDATA)
static int spi_child_post_bind(struct udevice *dev)
{
struct dm_spi_slave_platdata *plat = dev_get_parent_platdata(dev);
@ -117,14 +118,16 @@ static int spi_child_post_bind(struct udevice *dev)
return spi_slave_ofdata_to_platdata(gd->fdt_blob, dev->of_offset, plat);
}
#endif
static int spi_post_probe(struct udevice *bus)
{
#if !CONFIG_IS_ENABLED(OF_PLATDATA)
struct dm_spi_bus *spi = dev_get_uclass_priv(bus);
spi->max_hz = fdtdec_get_int(gd->fdt_blob, bus->of_offset,
"spi-max-frequency", 0);
#endif
#if defined(CONFIG_NEEDS_MANUAL_RELOC)
struct dm_spi_ops *ops = spi_get_ops(bus);
@ -274,7 +277,11 @@ int spi_get_bus_and_cs(int busnum, int cs, int speed, int mode,
bool created = false;
int ret;
#if CONFIG_IS_ENABLED(OF_PLATDATA)
ret = uclass_first_device_err(UCLASS_SPI, &bus);
#else
ret = uclass_get_device_by_seq(UCLASS_SPI, busnum, &bus);
#endif
if (ret) {
printf("Invalid bus %d (err=%d)\n", busnum, ret);
return ret;
@ -436,14 +443,18 @@ UCLASS_DRIVER(spi) = {
.id = UCLASS_SPI,
.name = "spi",
.flags = DM_UC_FLAG_SEQ_ALIAS,
#if !CONFIG_IS_ENABLED(OF_PLATDATA)
.post_bind = dm_scan_fdt_dev,
#endif
.post_probe = spi_post_probe,
.child_pre_probe = spi_child_pre_probe,
.per_device_auto_alloc_size = sizeof(struct dm_spi_bus),
.per_child_auto_alloc_size = sizeof(struct spi_slave),
.per_child_platdata_auto_alloc_size =
sizeof(struct dm_spi_slave_platdata),
#if !CONFIG_IS_ENABLED(OF_PLATDATA)
.child_post_bind = spi_child_post_bind,
#endif
};
UCLASS_DRIVER(spi_generic) = {