Messages in this thread | | | From | "Chia-Wei, Wang" <> | Subject | [PATCH 0/4] Remove LPC register partitioning | Date | Fri, 11 Sep 2020 11:46:27 +0800 |
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The LPC controller has no concept of the BMC and the Host partitions. The incorrect partitioning can impose unnecessary range restrictions on register access through the syscon regmap interface.
For instance, HICRB contains the I/O port address configuration of KCS channel 1/2. However, the KCS#1/#2 drivers cannot access HICRB as it is located at the other LPC partition.
In addition, to be backward compatible, the newly added HW control bits could be added at any reserved bits over the LPC addressing space.
Thereby, this patch series aims to remove the LPC partitioning for better driver development and maintenance.
Chia-Wei, Wang (4): ARM: dts: Remove LPC BMC and Host partitions soc: aspeed: Fix LPC register offsets ipmi: kcs: aspeed: Fix LPC register offsets pinctrl: aspeed-g5: Fix LPC register offsets
arch/arm/boot/dts/aspeed-g4.dtsi | 74 +++++------ arch/arm/boot/dts/aspeed-g5.dtsi | 135 +++++++++------------ arch/arm/boot/dts/aspeed-g6.dtsi | 135 +++++++++------------ drivers/char/ipmi/kcs_bmc_aspeed.c | 13 +- drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c | 2 +- drivers/soc/aspeed/aspeed-lpc-ctrl.c | 6 +- drivers/soc/aspeed/aspeed-lpc-snoop.c | 11 +- 7 files changed, 162 insertions(+), 214 deletions(-)
-- 2.17.1
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