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cr50: update GPIOs

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Update the GPIO mapping based on the Kevin P0 schematic and drive the EC
and AP select signals low.

BUG=chrome-os-partner:50728
BRANCH=none
TEST=test that DIOB2 and B3 default to low, but can be set high or low.

Change-Id: If574436913ad0271540bcce2939fe1f4574dae97
Signed-off-by: Mary Ruthven <mruthven@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/335381
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
This commit is contained in:
Mary Ruthven
2016-03-27 20:12:45 -07:00
committed by chrome-bot
parent 4c294d144b
commit 170d6bdd44
1 changed files with 8 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
board/cr50/gpio.inc
View File

@@ -11,8 +11,8 @@
GPIO(INT_AP_L, PIN(0, 0), GPIO_INPUT)
/* Use these to take over the AP & EC flash (only when AP & EC are off!) */
GPIO(EC_FLASH_SELECT, PIN(0, 1), GPIO_INPUT)
GPIO(AP_FLASH_SELECT, PIN(0, 2), GPIO_INPUT)
GPIO(EC_FLASH_SELECT, PIN(0, 1), GPIO_OUT_LOW)
GPIO(AP_FLASH_SELECT, PIN(0, 2), GPIO_OUT_LOW)
/* As an input this mirrors EC_WP_L (which is controlled by RBOX, not a GPIO).
* As an output it can override EC_WP_L, although why would we? */
@@ -41,11 +41,11 @@ UNIMPLEMENTED(ENTERING_RW)
#endif
/* GPIOs - mark outputs as inputs too, to read back from the driven pad */
PINMUX(GPIO(INT_AP_L), B7, DIO_INPUT) /* DIOB7 is p_digitial_od */
PINMUX(GPIO(INT_AP_L), A5, DIO_INPUT) /* DIOB7 is p_digitial_od */
/* We can't pull it up */
PINMUX(GPIO(EC_FLASH_SELECT), A3, DIO_INPUT)
PINMUX(GPIO(AP_FLASH_SELECT), A7, DIO_INPUT)
PINMUX(GPIO(AP_WP_L), A5, 0)
PINMUX(GPIO(EC_FLASH_SELECT), B2, DIO_INPUT)
PINMUX(GPIO(AP_FLASH_SELECT), B3, DIO_INPUT)
PINMUX(GPIO(AP_WP_L), M3, 0)
PINMUX(GPIO(SYS_RST), M0, DIO_INPUT)
PINMUX(GPIO(CCD_MODE), M1, DIO_INPUT)
PINMUX(GPIO(BATT_PRES), M2, 0)
@@ -53,8 +53,8 @@ PINMUX(GPIO(BATT_PRES), M2, 0)
/* UARTs */
PINMUX(FUNC(UART0_TX), A0, DIO_OUTPUT) /* Cr50 console */
PINMUX(FUNC(UART0_RX), A1, DIO_INPUT)
PINMUX(FUNC(UART1_TX), B3, DIO_INPUT) /* AP console */
PINMUX(FUNC(UART1_RX), B2, DIO_INPUT)
PINMUX(FUNC(UART1_TX), A3, DIO_INPUT) /* AP console */
PINMUX(FUNC(UART1_RX), A7, DIO_INPUT)
PINMUX(FUNC(UART2_TX), B5, DIO_INPUT) /* EC console */
PINMUX(FUNC(UART2_RX), B6, DIO_INPUT)