diff options
| author | Patrick Rudolph <patrick.rudolph@9elements.com> | 2019-01-10 14:52:53 +0100 |
|---|---|---|
| committer | Patrick Rudolph <siro@das-labor.org> | 2019-01-15 07:46:28 +0000 |
| commit | a649310ea478bff8092301bdd6128f36771afb2b (patch) | |
| tree | e1d0c41b5e37208283ffc9922e9ffa83ffff55cb /src | |
| parent | 6085d39bdb2c23f91fdda752d96e37a57fef8f82 (diff) | |
mainboard/ocp/wedge100s: Fix uart
* Route IO 0x6e/0x6f to LPC bus
* Setup ITE8526 in early_mainboard_romstage_entry
* Fix romstage serial console by disabling internal uart default setting
* Unselect CONFIG_INTEGRATED_UART, as it doesn't use internal UARTs
* Select CONFIG_DRIVERS_UART_8250IO, as it has a SuperIO serial
* Configure UPDs related to serial
Change-Id: I59cd83ed43dbf4ee26685e4a573de153291f7074
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/30827
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/ocp/wedge100s/Kconfig | 7 | ||||
| -rw-r--r-- | src/mainboard/ocp/wedge100s/romstage.c | 34 |
2 files changed, 38 insertions, 3 deletions
diff --git a/src/mainboard/ocp/wedge100s/Kconfig b/src/mainboard/ocp/wedge100s/Kconfig index e850887fe3..ce9c097cca 100644 --- a/src/mainboard/ocp/wedge100s/Kconfig +++ b/src/mainboard/ocp/wedge100s/Kconfig @@ -15,6 +15,7 @@ config BOARD_SPECIFIC_OPTIONS select ENABLE_FSP_FAST_BOOT select MAINBOARD_HAS_LPC_TPM select MAINBOARD_HAS_TPM1 + select DRIVERS_UART_8250IO config VBOOT select VBOOT_VBNV_CMOS @@ -45,9 +46,6 @@ config VIRTUAL_ROM_SIZE hex default 0x1000000 -config DRIVERS_UART_8250IO - def_bool n - config FSP_PACKAGE_DEFAULT bool "Configure defaults for the Intel FSP package" default n @@ -57,4 +55,7 @@ config FMDFILE default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-ro.fmd" if VBOOT default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/board.fmd" +config INTEGRATED_UART + def_bool n + endif # BOARD_OCP_WEDGE100S diff --git a/src/mainboard/ocp/wedge100s/romstage.c b/src/mainboard/ocp/wedge100s/romstage.c index 9e294d978b..e14a09f5ef 100644 --- a/src/mainboard/ocp/wedge100s/romstage.c +++ b/src/mainboard/ocp/wedge100s/romstage.c @@ -20,6 +20,12 @@ #include <cpu/x86/msr.h> #include <cf9_reset.h> #include <console/console.h> +#include <soc/pci_devs.h> +#include <soc/lpc.h> +#include <superio/ite/common/ite.h> + +#define SUPERIO_DEV 0x6e +#define SERIAL_DEV PNP_DEV(SUPERIO_DEV, 1) /** * /brief mainboard call for setup that needs to be done before fsp init @@ -27,6 +33,14 @@ */ void early_mainboard_romstage_entry(void) { + /* Decode 0x6e/0x6f on LPC bus (actually 0x6c-0x6f) */ + pci_write_config32(PCI_DEV(0x0, LPC_DEV, LPC_FUNC), LPC_GEN1_DEC, + (0 << 16) | ALIGN_DOWN(SUPERIO_DEV, 4) | 1); + + if (IS_ENABLED(CONFIG_CONSOLE_SERIAL)) + ite_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); + + /* * Sometimes the system boots in an invalid state, where random values * have been written to MSRs and then the MSRs are locked. @@ -60,5 +74,25 @@ void late_mainboard_romstage_entry(void) */ void romstage_fsp_rt_buffer_callback(FSP_INIT_RT_BUFFER *FspRtBuffer) { + UPD_DATA_REGION *fsp_upd_data = FspRtBuffer->Common.UpdDataRgnPtr; + if (IS_ENABLED(CONFIG_FSP_USES_UPD)) { + /* The internal UART operates on 0x3f8/0x2f8. + * As it's not wired up and conflicts with SuperIO decoding + * the same range, make sure to disable it. + */ + fsp_upd_data->SerialPortControllerInit0 = 0; + fsp_upd_data->SerialPortControllerInit1 = 0; + + /* coreboot will initialize UART. + * No need for FSP to do it again. + */ + fsp_upd_data->SerialPortConfigure = 0; + fsp_upd_data->SerialPortBaudRate = 0; + /* Make FSP use serial IO */ + if (IS_ENABLED(CONFIG_CONSOLE_SERIAL)) + fsp_upd_data->SerialPortType = 1; + else + fsp_upd_data->SerialPortType = 0; + } } |