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| author | Matt DeVillier <matt.devillier@gmail.com> | 2018-07-31 16:56:37 -0500 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2018-08-02 10:53:55 +0000 |
| commit | 404962f32c8e8a7131d635af50ce0ff186f46247 (patch) | |
| tree | 6077d737027ed0a6ed53997085b72a9ae43bf24d | |
| parent | eb7940d8b01111c961958a720c74ce3c6707b1ba (diff) | |
| download | coreboot-404962f32c8e8a7131d635af50ce0ff186f46247.tar.xz | |
google/cyan: Configure WLAN_CLKREQ as GPIO and always assert low
Adapted from chromium commit adcb858
[cyan: Configure WLAN_CLKREQ as GPIO and always assert low]
This is a workaround for issue b/35648315 as proposed by Intel to
ensure that WLAN_CLKREQ always stays low.
BUG=b:35648315
Original-Change-Id: I178b3e4fbf74cf08eadfa8bd31b80b018f330e77
Original-Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/1055652
Original-Reviewed-by: Rajat Jain <rajatja@chromium.org>
Original-Tested-by: Rajat Jain <rajatja@chromium.org>
Change-Id: Ie3458b3fbd1ecadf6b99b9804fb98440cf8d6938
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/27762
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
| -rw-r--r-- | src/mainboard/google/cyan/variants/cyan/gpio.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/mainboard/google/cyan/variants/cyan/gpio.c b/src/mainboard/google/cyan/variants/cyan/gpio.c index 4139f767c3..bf869fec23 100644 --- a/src/mainboard/google/cyan/variants/cyan/gpio.c +++ b/src/mainboard/google/cyan/variants/cyan/gpio.c @@ -136,7 +136,9 @@ static const struct soc_gpio_map gpsw_gpio_map[] = { Native_M1, /* 90 PCIE_CLKREQ0B */ GPIO_INPUT_PU_20K, /* 91 GPI PCIE_CLKREQ1B/LTE_WAKE# */ Native_M1, /* 92 GP_SSP_2_CLK */ - NATIVE_PU20K(1), /* 93 PCIE_CLKREQ2B/PCIE_CLKREQ_WLAN# */ + /* Workaround for issue b/35648315: Program this as GPIO and always + assert it low. */ + GPIO_OUT_LOW, /* 93 PCIE_CLKREQ2B/PCIE_CLKREQ_WLAN# */ Native_M1, /* 94 GP_SSP_2_RXD */ GPI(trig_edge_both, L1, P_5K_H, 0, en_edge_detect, NA, NA), /* 95 PCIE_CLKREQ3B/AUDIO_CODEC_IRQ */ |