diff options
| author | Maulik V Vaghela <maulik.v.vaghela@intel.com> | 2018-07-17 21:52:27 +0530 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2018-08-30 14:47:04 +0000 |
| commit | 9b08a189667b74c220b5359755dc88cdfc08c950 (patch) | |
| tree | d76543b2a7173aa4d4506581a03f0006537ef2fa /src/soc/intel/cannonlake/include | |
| parent | 58344fc2e7d9256524997b5aecd6130534c6702c (diff) | |
soc/intel/cannonlake: Update PMC base address for CNP H and LP
PMC base address is different for CNP LP pch and CNP H pch.
Added logic to determine PMC base addrress dynamically based on PCH ID.
BUG=none
BRANCH=none
TEST=Boot Coffeelake U RVP board and check if PMC base address is
determined correctly.
Change-Id: I833395260e8fb631823bd03192a092df323250fa
Signed-off-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>
Reviewed-on: https://review.coreboot.org/27523
Reviewed-by: Naresh Solanki <naresh.solanki@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel/cannonlake/include')
| -rw-r--r-- | src/soc/intel/cannonlake/include/soc/lpc.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/soc/intel/cannonlake/include/soc/lpc.h b/src/soc/intel/cannonlake/include/soc/lpc.h index 3ea9be9203..a4e42bddf3 100644 --- a/src/soc/intel/cannonlake/include/soc/lpc.h +++ b/src/soc/intel/cannonlake/include/soc/lpc.h @@ -52,4 +52,16 @@ #define LPC_BC_EISS (1 << 5) /* EISS */ #define PCCTL 0xE0 /* PCI Clock Control */ #define CLKRUN_EN (1 << 0) + +/* + * This function will help to differentiate between 2 PCH on single type of soc. + * Since same soc may have LP series pch or H series PCH, we need to + * differentiate by reading upper 8 bits of PCH device ids. + * + * Return: + * Return PCH_LP or PCH_H macro in case of respective device ID found. + * PCH_UNKNOWN_SERIES in case of invalid device ID. + */ +uint8_t get_pch_series(void); + #endif |