diff options
| author | Subrata Banik <subrata.banik@intel.com> | 2017-06-02 10:18:09 +0530 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2017-06-07 18:30:52 +0200 |
| commit | f0c7be4e6344133ee2aaa2bb40e21ca28108be11 (patch) | |
| tree | 1a0dd8f985e0f0f6b7b54c558dd5d1e94c5a817e /src/soc | |
| parent | 9121a364a6d510eefa185df1458e7dacf24057b5 (diff) | |
| download | coreboot-f0c7be4e6344133ee2aaa2bb40e21ca28108be11.tar.xz | |
intel/common/acpi: Fix ACPI debug log issue with LPSS UART
This patch fixes ACPI debug print issue reported internally
while using APRT asl method. Potentially some junk characters
gets added into final print buffer due to LPSS MMIO register
space is 32 bit width and ADBG is one byte at a time.
TEST=Built and boo eve to ensure to be able to get ASL console
log without any corruption.
Change-Id: I0b6af789c0ffc79f7fee4652b4aa6a125b182296
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/20009
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/common/acpi/acpi_debug.asl | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/src/soc/intel/common/acpi/acpi_debug.asl b/src/soc/intel/common/acpi/acpi_debug.asl index 5b686f2375..76805fe5f2 100644 --- a/src/soc/intel/common/acpi/acpi_debug.asl +++ b/src/soc/intel/common/acpi/acpi_debug.asl @@ -41,7 +41,8 @@ Method (APRT, 1, Serialized) Name(ADBG, Buffer(256) {0}) If (LEqual(ObjectType(Arg0), 1)) { /* Integer */ - ToHexString(Arg0, ADBG) + ToHexString(Arg0, Local0) + Store(Local0, ADBG) } ElseIf (LEqual(ObjectType(Arg0), 2)) { /* String */ Store(Arg0, ADBG) } ElseIf (LEqual(ObjectType(Arg0), 3)) { /* Buffer */ @@ -60,12 +61,18 @@ Method (APRT, 1, Serialized) OperationRegion (UBAR, SystemMemory, UART_DEBUG_BASE_ADDRESS, 24) Field (UBAR, AnyAcc, NoLock, Preserve) { - TDR, 32, /* Transmit Data Register BAR + 0x000 */ - IER, 32, /* Interrupt Enable Register BAR + 0x004 */ - IIR, 32, /* Interrupt Identification Register BAR + 0x008 */ - LCR, 32, /* Line Control Register BAR + 0x00C */ - MCR, 32, /* Modem Control Register BAR + 0x010 */ - LSR, 32 /* Line Status Register BAR + 0x014 */ + TDR, 8, /* Transmit Data Register BAR + 0x000 */ + , 24, + IER, 8, /* Interrupt Enable Register BAR + 0x004 */ + , 24, + IIR, 8, /* Interrupt Identification Register BAR + 0x008 */ + , 24, + LCR, 8, /* Line Control Register BAR + 0x00C */ + , 24, + MCR, 8, /* Modem Control Register BAR + 0x010 */ + , 24, + LSR, 8, /* Line Status Register BAR + 0x014 */ + , 24 } #else OperationRegion (UBAR, SystemIO, LURT (CONFIG_UART_FOR_CONSOLE), 6) |