diff options
author | Furquan Shaikh <furquan@chromium.org> | 2017-08-04 15:58:26 -0700 |
---|---|---|
committer | Furquan Shaikh <furquan@google.com> | 2017-08-10 16:24:57 +0000 |
commit | 3406dd64c328bf0f2f1902d42b239f84c136e4f0 (patch) | |
tree | 3a041bafb43a260432cb0c9e2f769e5b177ad9fe /src/soc/intel/common/block/include/intelblocks | |
parent | 836f94c6126b8a9529321c6af71babdae3202592 (diff) |
soc/intel/common/uart: Refactor uart_common_init
1. Create a new function uart_lpss_init which takes the UART LPSS
controller out of reset and initializes and enables clock.
2. Instead of passing in m/n clock divider values as parameters to
uart_common_init, introduce Kconfig variables so that uart_lpss_init
can use the values directly without having to query the SoC.
BUG=b:64030366
TEST=Verified that UART still works on APL and KBL boards.
Change-Id: I74d01b0037d8c38fe6480c38ff2283d76097282a
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/20884
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/soc/intel/common/block/include/intelblocks')
-rw-r--r-- | src/soc/intel/common/block/include/intelblocks/uart.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/soc/intel/common/block/include/intelblocks/uart.h b/src/soc/intel/common/block/include/intelblocks/uart.h index b46edd76d7..9ec5004e08 100644 --- a/src/soc/intel/common/block/include/intelblocks/uart.h +++ b/src/soc/intel/common/block/include/intelblocks/uart.h @@ -19,8 +19,12 @@ #include <arch/io.h> #include <device/device.h> -void uart_common_init(device_t dev, uintptr_t baseaddr, - uint32_t clk_m_val, uint32_t clk_n_val); +/* + * Common routine to initialize UART controller PCI config space, take it out of + * reset and configure M/N dividers. + */ +void uart_common_init(device_t dev, uintptr_t baseaddr); + void pch_uart_read_resources(struct device *dev); |