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| author | Yong Li <yong.b.li@linux.intel.com> | 2019-01-02 10:06:43 +0300 |
|---|---|---|
| committer | Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> | 2021-11-05 10:22:06 +0300 |
| commit | 51181b65c8d67612ac13e291173f118707f55c62 (patch) | |
| tree | 139126fe8f9dbf3ad196869e349a0e21e2327a48 /include/dt-bindings | |
| parent | baa8d5f75efea56d1f0058467e1b3e6ca1395a78 (diff) | |
| download | linux-51181b65c8d67612ac13e291173f118707f55c62.tar.xz | |
Add high speed baud rate support for UART
In order to support high speed baud rate(921600 bps),
the default UART clock(24MHz) needs to be switched
to 192MHz(from USB2.0 port1 PHY).
Create a new 192M Hz clock and assign it to uart,
based on uart clock source configuration in SCU4C.
bootloader(u-boot) will set SCU4C based on the environment configuration
Signed-off-by: Yong Li <yong.b.li@linux.intel.com>
Diffstat (limited to 'include/dt-bindings')
| -rw-r--r-- | include/dt-bindings/clock/aspeed-clock.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/dt-bindings/clock/aspeed-clock.h b/include/dt-bindings/clock/aspeed-clock.h index 9ff4f6e4558c..41d531dd0b48 100644 --- a/include/dt-bindings/clock/aspeed-clock.h +++ b/include/dt-bindings/clock/aspeed-clock.h @@ -41,6 +41,8 @@ #define ASPEED_CLK_24M 35 #define ASPEED_CLK_MAC1RCLK 36 #define ASPEED_CLK_MAC2RCLK 37 +#define ASPEED_CLK_UART_HS 38 +#define ASPEED_CLK_MAX 39 #define ASPEED_RESET_XDMA 0 #define ASPEED_RESET_MCTP 1 |