diff options
| author | Mario Scheithauer <mario.scheithauer@siemens.com> | 2018-08-22 13:03:55 +0200 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2018-08-28 14:18:40 +0000 |
| commit | 403458e7ec0fae1345cd82128b71d5ab0b66fd77 (patch) | |
| tree | 43de83e3208afbb6c7feb16aba7d203a127dedeb /src/mainboard/siemens/mc_apl1/variants/baseboard | |
| parent | 24ad29e83c3b5d46c7ba458a504f63eb034837c7 (diff) | |
siemens/mc_apl1: Extend circuit life by clock gating and power gating
The firmware of devices connected to LPC should deassert the LPC CLKRUN#
signal when there is no bus activity on LPC.
Necessary changes:
- Enable LPC CLKRUN#
- Enable LPC PCE (Power Control Enable)
- Enable LPC CCE (Clock Control Enable)
- Remove I/O decoding range on LPC for COM 3
- Disable I/O UART driver
Change-Id: I2fd80e3fdcf23658f97b8182a77df7e09ddf25d6
Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-on: https://review.coreboot.org/28268
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Diffstat (limited to 'src/mainboard/siemens/mc_apl1/variants/baseboard')
| -rw-r--r-- | src/mainboard/siemens/mc_apl1/variants/baseboard/gpio.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mainboard/siemens/mc_apl1/variants/baseboard/gpio.c b/src/mainboard/siemens/mc_apl1/variants/baseboard/gpio.c index 02d0601482..28aad8aa92 100644 --- a/src/mainboard/siemens/mc_apl1/variants/baseboard/gpio.c +++ b/src/mainboard/siemens/mc_apl1/variants/baseboard/gpio.c @@ -84,7 +84,7 @@ static const struct pad_config gpio_table[] = { PAD_CFG_NF(LPC_AD1, NONE, DEEP, NF1), /* LPC_AD1 */ PAD_CFG_NF(LPC_AD2, NONE, DEEP, NF1), /* LPC_AD2 */ PAD_CFG_NF(LPC_AD3, NONE, DEEP, NF1), /* LPC_AD3 */ - PAD_CFG_GPI(LPC_CLKRUNB, NONE, DEEP), /* LPC_CLKRUN_N */ + PAD_CFG_NF(LPC_CLKRUNB, NONE, DEEP, NF1), /* LPC_CLKRUN_N */ PAD_CFG_NF(LPC_FRAMEB, NONE, DEEP, NF1), /* LPC_FRAME_N */ /* West Community */ @@ -402,7 +402,7 @@ static const struct pad_config early_gpio_table[] = { PAD_CFG_NF(LPC_AD1, NONE, DEEP, NF1), /* LPC_AD1 */ PAD_CFG_NF(LPC_AD2, NONE, DEEP, NF1), /* LPC_AD2 */ PAD_CFG_NF(LPC_AD3, NONE, DEEP, NF1), /* LPC_AD3 */ - PAD_CFG_GPI(LPC_CLKRUNB, NONE, DEEP), /* LPC_CLKRUN_N */ + PAD_CFG_NF(LPC_CLKRUNB, NONE, DEEP, NF1), /* LPC_CLKRUN_N */ PAD_CFG_NF(LPC_FRAMEB, NONE, DEEP, NF1), /* LPC_FRAME_N */ }; |