diff options
| author | Wim Vervoorn <wvervoorn@eltan.com> | 2020-02-03 14:57:40 +0100 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-02-11 07:50:32 +0000 |
| commit | e6db9105ec9b0e85df93d290deb233a43e53a569 (patch) | |
| tree | 4105ea56e94ac849a5b06e4f20e830081a9fb124 | |
| parent | 12e9c5ee86f9aa87b1e84bfc59e6cdbab5a4b254 (diff) | |
soc/intel/common/block/lpc: Add lpc_get_fixed_io_decode
Add function to return the fixed io decode ranges contained in register
0x80 of the LPC interface.
BUG=N/A
TEST=build
Change-Id: Ie46d7c9d7a399a8489c030d906f75ba61db19cc4
Signed-off-by: Wim Vervoorn <wvervoorn@eltan.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38745
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
| -rw-r--r-- | src/soc/intel/common/block/include/intelblocks/lpc_lib.h | 2 | ||||
| -rw-r--r-- | src/soc/intel/common/block/lpc/lpc_lib.c | 5 |
2 files changed, 7 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/include/intelblocks/lpc_lib.h b/src/soc/intel/common/block/include/intelblocks/lpc_lib.h index f77b8d5d71..cf6d8e9bdc 100644 --- a/src/soc/intel/common/block/include/intelblocks/lpc_lib.h +++ b/src/soc/intel/common/block/include/intelblocks/lpc_lib.h @@ -70,6 +70,8 @@ struct lpc_mmio_range { * Output:I/O Enable Bits */ uint16_t lpc_enable_fixed_io_ranges(uint16_t io_enables); +/* Return the current decode settings */ +uint16_t lpc_get_fixed_io_decode(void); /* Open a generic IO window to the LPC bus. Four windows are available. */ void lpc_open_pmio_window(uint16_t base, uint16_t size); /* Close all generic IO windows to the LPC bus. */ diff --git a/src/soc/intel/common/block/lpc/lpc_lib.c b/src/soc/intel/common/block/lpc/lpc_lib.c index bc89e4ccae..3ad2176c11 100644 --- a/src/soc/intel/common/block/lpc/lpc_lib.c +++ b/src/soc/intel/common/block/lpc/lpc_lib.c @@ -37,6 +37,11 @@ uint16_t lpc_enable_fixed_io_ranges(uint16_t io_enables) return io_enables; } +uint16_t lpc_get_fixed_io_decode(void) +{ + return pci_read_config16(PCH_DEV_LPC, LPC_IO_DECODE); +} + /* * Find the first unused IO window. * Returns -1 if not found, 0 for reg 0x84, 1 for reg 0x88 ... |