diff options
Diffstat (limited to 'arch/x86/lib/acpi_table.c')
| -rw-r--r-- | arch/x86/lib/acpi_table.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/x86/lib/acpi_table.c b/arch/x86/lib/acpi_table.c index 66e32f21bdb..9346e165d89 100644 --- a/arch/x86/lib/acpi_table.c +++ b/arch/x86/lib/acpi_table.c @@ -12,8 +12,8 @@ #include <dm/uclass-internal.h> #include <serial.h> #include <version.h> +#include <acpi/acpi_table.h> #include <asm/acpi/global_nvs.h> -#include <asm/acpi_table.h> #include <asm/ioapic.h> #include <asm/lapic.h> #include <asm/mpspec.h> @@ -471,6 +471,15 @@ static void acpi_create_spcr(struct acpi_spcr *spcr) spcr->pci_device_id = 0xffff; spcr->pci_vendor_id = 0xffff; + /* + * SPCR has no clue if the UART base clock speed is different + * to the default one. However, the SPCR 1.04 defines baud rate + * 0 as a preconfigured state of UART and OS is supposed not + * to touch the configuration of the serial device. + */ + if (serial_info.clock != SERIAL_DEFAULT_CLOCK) + spcr->baud_rate = 0; + /* Fix checksum */ header->checksum = table_compute_checksum((void *)spcr, header->length); } |