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soc/amd/stoneyridge: Add API to initialize non-early_init i2c buses 

Provide a method for initializing i2c buses that are not marked as
early_init in the device tree.  These i2c buses can be enabled in a
mainboard's ramstage, for example.

BUG=b:69407112
TEST=Boot depthcharge w/ CLI enabled on grunt.
  devbeep
  => plays beep
BRANCH=None

Change-Id: I6e49b0de9116138ba102377d283e22d7b50d7dca
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-on: https://review.coreboot.org/23553
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
This commit is contained in:
Daniel Kurtz 2018-02-01 15:18:38 -07:00 committed by Martin Roth
parent da6f4ae0b9
commit e0ea98258a
2 changed files with 15 additions and 2 deletions
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14
src/soc/amd/stoneyridge/i2c.c
View File

@ -101,7 +101,7 @@ int dw_i2c_soc_dev_to_bus(struct device *dev)
return -1;
}
void i2c_soc_early_init(void)
static void dw_i2c_soc_init(bool is_early_init)
{
size_t i;
const struct soc_amd_stoneyridge_config *config;
@ -114,7 +114,7 @@ void i2c_soc_early_init(void)
for (i = 0; i < ARRAY_SIZE(config->i2c); i++) {
const struct dw_i2c_bus_config *cfg = &config->i2c[i];
if (!cfg->early_init)
if (cfg->early_init != is_early_init)
continue;
if (dw_i2c_init(i, cfg))
@ -122,6 +122,16 @@ void i2c_soc_early_init(void)
}
}
void i2c_soc_early_init(void)
{
dw_i2c_soc_init(true);
}
void i2c_soc_init(void)
{
dw_i2c_soc_init(false);
}
struct device_operations stoneyridge_i2c_mmio_ops = {
/* TODO(teravest): Move I2C resource info here. */
.read_resources = DEVICE_NOOP,

3
src/soc/amd/stoneyridge/include/soc/southbridge.h
View File

@ -392,4 +392,7 @@ int mainboard_get_ehci_oc_map(uint16_t *usb_oc_map);
/* Initialize all the i2c buses that are marked with early init. */
void i2c_soc_early_init(void);
/* Initialize all the i2c buses that are not marked with early init. */
void i2c_soc_init(void);
#endif /* __STONEYRIDGE_H__ */