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author | Maxim Polyakov <max.senia.poliak@gmail.com> | 2019-07-10 18:33:28 +0300 |
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committer | Martin Roth <martinroth@google.com> | 2019-07-21 18:53:00 +0000 |
commit | f357f7e264baf35f98e216ac59abe71770147f40 (patch) | |
tree | 9b8c09a5282ed0d0fc78e2e3df695d1a97757e58 /src/mainboard | |
parent | 6f76d0b12fcc04a118cb8827b58f56f395435fbb (diff) | |
download | coreboot-f357f7e264baf35f98e216ac59abe71770147f40.tar.xz |
soc/intel/common: add PAD_CFG_NF_BUF_TRIG macro
In the case there is no the circuit diagram for motherboard, the
PCH/SoC GPIOs config is based on information from the inteltool
dump. However, available macros from gpio_defs.h can't define the
pad configuration from this dump:
0x0440: 0x0000002084000500 GPP_A8 CLKRUN#
0x0448: 0x0000102184000600 GPP_A9 CLKOUT_LPC0
0x0450: 0x0000102284000600 GPP_A10 CLKOUT_LPC1
To convert these raw DW0/DW1 register values to macros, the following
parameters must be set:
func - pad function,
pull - termination,
rst - pad reset config,
trig - rx level/edge configuration,
bufdis - rx/tx (in/output) buffer disable.
The patch resolves the above problem by adding a new macro for the
native function configuration:
PAD_CFG_NF_BUF_TRIG(pad, pull, rst, func, bufdis, trig)
These changes were tested on Asrock H110M-DVS motherboard [2].
It also resolves the problem of automatically creating pads
configuration [3,4]
[1] page 1429,Intel (R) 100 Series and Intel (R) C230 Series PCH
Family Platform Controller Hub (PCH), Datasheet, Vol 2 of 2,
February 2019, Document Number: 332691-003EN
https://www.intel.com/content/dam/www/public/us/en/documents/
datasheets/100-series-chipset-datasheet-vol-2.pdf
[2] https://review.coreboot.org/c/coreboot/+/33565
[3] https://github.com/maxpoliak/pch-pads-parser/issues/1
[4] https://github.com/maxpoliak/pch-pads-parser/commit/215d303
Change-Id: If9fe50ff9a680633db6228564345200c0e1ee3ea
Signed-off-by: Maxim Polyakov <max.senia.poliak@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34337
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard')
0 files changed, 0 insertions, 0 deletions