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soc/amd/stoneyridge: Rewrite smbus_read/write, add asf

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Convert smbus_read8() and smbus_write8() functions to use the same
arguments as the other AcpiMmio blocks, and add 16 and 32 bit versions.
Add matching functions for the ASF controller.

Change-Id: I3b0ecf21f20472245da98ab5e711a54e99dca93a
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32644
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-by: Martin Roth <martinroth@google.com>
This commit is contained in:
Marshall Dawson
2019-05-05 14:08:59 -06:00
committed by Martin Roth
parent 6ac87c4986
commit 753c225c2c
4 changed files with 102 additions and 34 deletions
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10
src/soc/amd/stoneyridge/southbridge.c
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@ -632,12 +632,12 @@ static void setup_misc(int *reboot)
static void fch_smbus_init(void)
{
pm_write8(SMB_ASF_IO_BASE, SMB_BASE_ADDR >> 8);
smbus_write8(ACPIMMIO_SMBUS_BASE, SMBTIMING, SMB_SPEED_400KHZ);
smbus_write8(SMBTIMING, SMB_SPEED_400KHZ);
/* Clear all SMBUS status bits */
smbus_write8(ACPIMMIO_SMBUS_BASE, SMBHSTSTAT, SMBHST_STAT_CLEAR);
smbus_write8(ACPIMMIO_SMBUS_BASE, SMBSLVSTAT, SMBSLV_STAT_CLEAR);
smbus_write8(ACPIMMIO_ASF_BASE, SMBHSTSTAT, SMBHST_STAT_CLEAR);
smbus_write8(ACPIMMIO_ASF_BASE, SMBSLVSTAT, SMBSLV_STAT_CLEAR);
smbus_write8(SMBHSTSTAT, SMBHST_STAT_CLEAR);
smbus_write8(SMBSLVSTAT, SMBSLV_STAT_CLEAR);
asf_write8(SMBHSTSTAT, SMBHST_STAT_CLEAR);
asf_write8(SMBSLVSTAT, SMBSLV_STAT_CLEAR);
}
/* Before console init */