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twinkie: fix GPIO settings

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The high FET on the TX path should be driven low to disable it by
default.
The SCK pin (SPI clock input for TX) is on PA5.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

BRANCH=none
BUG=chrome-os-partner:28337
TEST=scope outputs

Change-Id: I72fa52a170ae0e4043beb88d4fd82680ed4aefa2
Reviewed-on: https://chromium-review.googlesource.com/204165
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Todd Broch <tbroch@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
This commit is contained in:
Vincent Palatin
2014-06-09 10:05:13 -07:00
committed by chrome-internal-fetch
parent 0d0b53e7ca
commit 4957dcbd87
2 changed files with 5 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
board/twinkie/board.c
View File

@@ -35,6 +35,7 @@ const struct gpio_info gpio_list[] = {
{"CC2_EN", GPIO_A, (1<<2), GPIO_OUT_HIGH, NULL},
{"CC2_PD", GPIO_A, (1<<3), GPIO_ANALOG, NULL},
{"DAC", GPIO_A, (1<<4), GPIO_ANALOG, NULL},
{"CC2_TX_DATA", GPIO_A, (1<<6), GPIO_OUT_LOW, NULL},
{"CC1_RA", GPIO_A, (1<<8), GPIO_ODR_HIGH, NULL},
{"USB_DM", GPIO_A, (1<<11), GPIO_ANALOG, NULL},
@@ -46,6 +47,7 @@ const struct gpio_info gpio_list[] = {
{"CC1_TX_EN", GPIO_B, (1<<1), GPIO_OUT_LOW, NULL},
{"CC2_TX_EN", GPIO_B, (1<<3), GPIO_OUT_LOW, NULL},
{"CC1_TX_DATA", GPIO_B, (1<<4), GPIO_OUT_LOW, NULL},
{"CC1_RD", GPIO_B, (1<<5), GPIO_ODR_HIGH, NULL},
{"I2C_SCL", GPIO_B, (1<<6), GPIO_INPUT, NULL},
{"I2C_SDA", GPIO_B, (1<<7), GPIO_INPUT, NULL},
@@ -86,8 +88,7 @@ DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
/* Pins with alternate functions */
const struct gpio_alt_func gpio_alt_funcs[] = {
{GPIO_A, 0x6000, 0, MODULE_USB_PD},/* SPI1: MISO(PA6) SCK(PA5) */
{GPIO_B, 0x0010, 0, MODULE_USB_PD},/* SPI1: MISO(PB4) */
{GPIO_A, 0x0020, 0, MODULE_USB_PD},/* SPI1: SCK(PA5) */
{GPIO_B, 0x0200, 2, MODULE_USB_PD},/* TIM17_CH1: PB9 */
{GPIO_A, 0x0600, 1, MODULE_UART, GPIO_PULL_UP}, /* USART1: PA9/PA10 */
{GPIO_B, 0x00C0, 1, MODULE_I2C}, /* I2C1 MASTER:PB6/7 */

2
board/twinkie/board.h
View File

@@ -50,6 +50,7 @@ enum gpio_signal {
GPIO_CC2_EN,
GPIO_CC2_PD,
GPIO_DAC,
GPIO_CC2_TX_DATA,
GPIO_CC1_RA,
GPIO_USB_DM,
@@ -61,6 +62,7 @@ enum gpio_signal {
GPIO_CC1_TX_EN,
GPIO_CC2_TX_EN,
GPIO_CC1_TX_DATA,
GPIO_CC1_RD,
GPIO_I2C_SCL,
GPIO_I2C_SDA,