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| author | Benjamin Fair <b-fair@ti.com> | 2016-10-14 01:13:33 +0000 |
|---|---|---|
| committer | Andrew F. Davis <afd@ti.com> | 2018-06-11 14:26:32 -0500 |
| commit | 529b541e8b81f68bb6ee3c6ecdb43b5cbe0a9d70 (patch) | |
| tree | cadc10f646fc59c247530c65dd45ff78088d8e6a /include | |
| parent | 11bebd7cab0873d04ad8f1d3ccd538f4d5b80ccb (diff) | |
| download | platform_external_arm-trusted-firmware-529b541e8b81f68bb6ee3c6ecdb43b5cbe0a9d70.tar.gz platform_external_arm-trusted-firmware-529b541e8b81f68bb6ee3c6ecdb43b5cbe0a9d70.tar.bz2 platform_external_arm-trusted-firmware-529b541e8b81f68bb6ee3c6ecdb43b5cbe0a9d70.zip | |
drivers: ti: uart: Add TI specific 16550 initialization
On TI platforms the UART is disabled by default and must be explicitly
enabled using the MDR1 register.
NOTE: The original definition of
http://www.ti.com/lit/ds/symlink/pc16550d.pdf has no MDR register, but
many TI SoCs implementing 16550 do have a quirky MDR register
implemented. So, this should be enabled with TI_16550_MDR_QUIRK
NOTE: In such implementation, the CSR register does not exist.
Signed-off-by: Benjamin Fair <b-fair@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/drivers/ti/uart/uart_16550.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/drivers/ti/uart/uart_16550.h b/include/drivers/ti/uart/uart_16550.h index 9eba41aa6..b00f66421 100644 --- a/include/drivers/ti/uart/uart_16550.h +++ b/include/drivers/ti/uart/uart_16550.h @@ -23,6 +23,8 @@ #define UARTMSR 0x18 #define UARTSPR 0x1c #define UARTCSR 0x20 +/* Some instances have MDR1 defined as well */ +#define UARTMDR1 0x20 #define UARTRXFIFOCFG 0x24 #define UARTMIE 0x28 #define UARTVNDR 0x2c |