When booting from coreboot we may not have a PCH driver available. The SPI driver can operate without the PCH but currently complains in this case. Update it to continue to work normally. The only missing feature is memory-mapping of SPI-flash contents, which is not essential.
Signed-off-by: Simon Glass sjg@chromium.org
Reviewed-by: Bin Meng bmeng.cn@gmail.com ---
(no changes since v1)
drivers/spi/ich.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/ich.c b/drivers/spi/ich.c index 1cd410493b0..3d49c22a9da 100644 --- a/drivers/spi/ich.c +++ b/drivers/spi/ich.c @@ -114,7 +114,7 @@ static bool ich9_can_do_33mhz(struct udevice *dev) struct ich_spi_priv *priv = dev_get_priv(dev); u32 fdod, speed;
- if (!CONFIG_IS_ENABLED(PCI)) + if (!CONFIG_IS_ENABLED(PCI) || !priv->pch) return false; /* Observe SPI Descriptor Component Section 0 */ dm_pci_write_config32(priv->pch, 0xb0, 0x1000); @@ -632,7 +632,7 @@ static int ich_spi_get_basics(struct udevice *bus, bool can_probe, if (device_get_uclass_id(pch) != UCLASS_PCH) { uclass_first_device(UCLASS_PCH, &pch); if (!pch) - return log_msg_ret("uclass", -EPROTOTYPE); + ; /* ignore this error since we don't need it */ } }