diff options
| -rw-r--r-- | src/soc/amd/sabrina/psp_verstage/uart.c | 19 | ||||
| -rw-r--r-- | src/vendorcode/amd/fsp/sabrina/include/bl_uapp/bl_syscall_public.h | 7 |
2 files changed, 24 insertions, 2 deletions
diff --git a/src/soc/amd/sabrina/psp_verstage/uart.c b/src/soc/amd/sabrina/psp_verstage/uart.c index 1c89f10c99..2767b2eb27 100644 --- a/src/soc/amd/sabrina/psp_verstage/uart.c +++ b/src/soc/amd/sabrina/psp_verstage/uart.c @@ -4,8 +4,23 @@ #include <amdblocks/uart.h> #include <types.h> +static void *uart_bars[FCH_UART_ID_MAX]; + uintptr_t get_uart_base(unsigned int idx) { - /* Mapping the UART is not supported. */ - return 0; + uint32_t err; + + if (idx >= ARRAY_SIZE(uart_bars)) + return 0; + + if (uart_bars[idx]) + return (uintptr_t)uart_bars[idx]; + + err = svc_map_fch_dev(FCH_IO_DEVICE_UART, idx, 0, &uart_bars[idx]); + if (err) { + svc_debug_print("Failed to map UART\n"); + return 0; + } + + return (uintptr_t)uart_bars[idx]; } diff --git a/src/vendorcode/amd/fsp/sabrina/include/bl_uapp/bl_syscall_public.h b/src/vendorcode/amd/fsp/sabrina/include/bl_uapp/bl_syscall_public.h index 48c35e54ac..79e3adfb91 100644 --- a/src/vendorcode/amd/fsp/sabrina/include/bl_uapp/bl_syscall_public.h +++ b/src/vendorcode/amd/fsp/sabrina/include/bl_uapp/bl_syscall_public.h @@ -91,9 +91,16 @@ enum fch_io_device { FCH_IO_DEVICE_MISC, FCH_IO_DEVICE_AOAC, FCH_IO_DEVICE_IOPORT, + FCH_IO_DEVICE_UART, FCH_IO_DEVICE_END, }; +enum fch_uart_id { + FCH_UART_ID_0 = 0, + FCH_UART_ID_1 = 1, + FCH_UART_ID_MAX, +}; + enum fch_i2c_controller_id { FCH_I2C_CONTROLLER_ID_0 = 0, FCH_I2C_CONTROLLER_ID_1 = 1, |