diff options
| author | Subrata Banik <subratabanik@google.com> | 2022-06-27 18:43:57 +0530 |
|---|---|---|
| committer | Subrata Banik <subratabanik@google.com> | 2022-07-01 07:24:55 +0000 |
| commit | abc59fb6fc8f46d987980ae596e72d475e8c602c (patch) | |
| tree | b33e2e3aa67d7f68b5dce80bfe29fd3d44017498 /src | |
| parent | a26760c047f27dfd2719764821143eac73cbf0b9 (diff) | |
mb/google/rex: Redirect AP UART over LPSS UART 0
This patch ensures AP UART messages are coming over LPSS UART 0 hence,
select required kconfig and program both early and late UART
RX/TX GPIOs accroding to the rex schematics dated 06/27.
BUG=b:224325352
TEST=Able to see AP UART log over LPSS UART0.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I7daa8200d1a7cf825dfdfed538573efd57ab2d97
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65454
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/rex/Kconfig | 1 | ||||
| -rw-r--r-- | src/mainboard/google/rex/variants/baseboard/rex/gpio.c | 8 |
2 files changed, 9 insertions, 0 deletions
diff --git a/src/mainboard/google/rex/Kconfig b/src/mainboard/google/rex/Kconfig index 9e02dd82b9..98870de4e6 100644 --- a/src/mainboard/google/rex/Kconfig +++ b/src/mainboard/google/rex/Kconfig @@ -3,6 +3,7 @@ config BOARD_GOOGLE_REX_COMMON select BOARD_ROMSIZE_KB_32768 select HAVE_ACPI_RESUME select HAVE_ACPI_TABLES + select INTEL_LPSS_UART_FOR_CONSOLE config BOARD_GOOGLE_BASEBOARD_REX def_bool n diff --git a/src/mainboard/google/rex/variants/baseboard/rex/gpio.c b/src/mainboard/google/rex/variants/baseboard/rex/gpio.c index 8efb7abc7b..70f05c49b1 100644 --- a/src/mainboard/google/rex/variants/baseboard/rex/gpio.c +++ b/src/mainboard/google/rex/variants/baseboard/rex/gpio.c @@ -7,11 +7,19 @@ /* Pad configuration in ramstage */ static const struct pad_config gpio_table[] = { /* ToDo: Fill gpio configuration */ + /* H8 : UART0_RXD ==> UART_DBG_TX_SOC_RX */ + PAD_CFG_NF(GPP_H8, NONE, DEEP, NF1), + /* H9 : UART0_TXD ==> UART_DBG_RX_SOC_TX */ + PAD_CFG_NF(GPP_H9, NONE, DEEP, NF1), }; /* Early pad configuration in bootblock */ static const struct pad_config early_gpio_table[] = { /* ToDo: Fill early gpio configuration */ + /* H8 : UART0_RXD ==> UART_DBG_TX_SOC_RX */ + PAD_CFG_NF(GPP_H8, NONE, DEEP, NF1), + /* H9 : UART0_TXD ==> UART_DBG_RX_SOC_TX */ + PAD_CFG_NF(GPP_H9, NONE, DEEP, NF1), }; const struct pad_config *__weak variant_gpio_table(size_t *num) |