diff options
Diffstat (limited to 'board/peppy/board.c')
| -rw-r--r-- | board/peppy/board.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/board/peppy/board.c b/board/peppy/board.c index 738ea662b0..a60316552b 100644 --- a/board/peppy/board.c +++ b/board/peppy/board.c @@ -102,10 +102,11 @@ const struct gpio_info gpio_list[] = { {"PCH_NMI_L", LM4_GPIO_F, (1<<2), GPIO_OUT_HIGH, NULL}, {"PCH_PWRBTN_L", LM4_GPIO_H, (1<<0), GPIO_OUT_HIGH, NULL}, {"PCH_PWROK", LM4_GPIO_F, (1<<5), GPIO_OUT_LOW, NULL}, - /* FIXME: Why does PL6 not honor open drain semantics? Setting it to 1 - * drives the pin low while setting it to 0 drives the pin high. To - * work around this PCH_RCIN_L is set to an input. It will only - * be set to an output when it needs to be driven to 0. */ + /* + * PL6 is one of 4 pins on the EC which can't be used in open-drain + * mode. To work around this PCH_RCIN_L is set to an input. It will + * only be set to an output when it needs to be driven to 0. + */ {"PCH_RCIN_L", LM4_GPIO_L, (1<<6), GPIO_INPUT, NULL}, {"PCH_RSMRST_L", LM4_GPIO_F, (1<<1), GPIO_OUT_LOW, NULL}, {"PCH_SMI_L", LM4_GPIO_F, (1<<4), GPIO_ODR_HIGH, NULL}, |