diff options
| -rw-r--r-- | payloads/libpayload/drivers/serial/8250.c | 4 | ||||
| -rw-r--r-- | payloads/libpayload/include/coreboot_tables.h | 1 |
2 files changed, 5 insertions, 0 deletions
diff --git a/payloads/libpayload/drivers/serial/8250.c b/payloads/libpayload/drivers/serial/8250.c index 0651f5201f..bca0057bb3 100644 --- a/payloads/libpayload/drivers/serial/8250.c +++ b/payloads/libpayload/drivers/serial/8250.c @@ -39,6 +39,8 @@ static int serial_is_mem_mapped = 0; static uint8_t serial_read_reg(int offset) { + offset *= lib_sysinfo.serial->regwidth; + #ifdef CONFIG_LP_IO_ADDRESS_SPACE if (!serial_is_mem_mapped) return inb(IOBASE + offset); @@ -49,6 +51,8 @@ static uint8_t serial_read_reg(int offset) static void serial_write_reg(uint8_t val, int offset) { + offset *= lib_sysinfo.serial->regwidth; + #ifdef CONFIG_LP_IO_ADDRESS_SPACE if (!serial_is_mem_mapped) outb(val, IOBASE + offset); diff --git a/payloads/libpayload/include/coreboot_tables.h b/payloads/libpayload/include/coreboot_tables.h index 1a189e5e4e..c46fbf9227 100644 --- a/payloads/libpayload/include/coreboot_tables.h +++ b/payloads/libpayload/include/coreboot_tables.h @@ -120,6 +120,7 @@ struct cb_serial { u32 type; u32 baseaddr; u32 baud; + u32 regwidth; }; #define CB_TAG_CONSOLE 0x00010 |