diff options
| author | Ivan T. Ivanov <ivan.ivanov@linaro.org> | 2015-09-30 12:27:02 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-04 18:15:17 (GMT) |
| commit | 99693945013a5178e1944f9409a1527d80b33abc (patch) | |
| tree | 7b8d24bf6151cb836f0c8c7ab619e31d466a3dcf /drivers/tty/serial/msm_serial.h | |
| parent | 3a878c430fd6eb4f8587f9ebd187f773bf85d1d6 (diff) | |
| download | linux-99693945013a5178e1944f9409a1527d80b33abc.tar.xz | |
tty: serial: msm: Add RX DMA support
Add receive DMA support for UARTDM type of controllers.
Tested on APQ8064, which have UARTDM v1.3 and ADM DMA engine
and APQ8016, which have UARTDM v1.4 and BAM DMA engine.
Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/msm_serial.h')
| -rw-r--r-- | drivers/tty/serial/msm_serial.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/tty/serial/msm_serial.h b/drivers/tty/serial/msm_serial.h index 103ae61..1786458 100644 --- a/drivers/tty/serial/msm_serial.h +++ b/drivers/tty/serial/msm_serial.h @@ -59,6 +59,7 @@ #define UART_CR_CMD_SET_RFR (13 << 4) #define UART_CR_CMD_RESET_RFR (14 << 4) #define UART_CR_CMD_PROTECTION_EN (16 << 4) +#define UART_CR_CMD_STALE_EVENT_DISABLE (6 << 8) #define UART_CR_CMD_STALE_EVENT_ENABLE (80 << 4) #define UART_CR_CMD_FORCE_STALE (4 << 8) #define UART_CR_CMD_RESET_TX_READY (3 << 8) @@ -124,6 +125,9 @@ #define UARTDM_DMEN_TX_BAM_ENABLE BIT(2) /* UARTDM_1P4 */ #define UARTDM_DMEN_TX_DM_ENABLE BIT(0) /* < UARTDM_1P4 */ +#define UARTDM_DMEN_RX_BAM_ENABLE BIT(3) /* UARTDM_1P4 */ +#define UARTDM_DMEN_RX_DM_ENABLE BIT(1) /* < UARTDM_1P4 */ + #define UARTDM_DMRX 0x34 #define UARTDM_NCF_TX 0x40 #define UARTDM_RX_TOTAL_SNAP 0x38 |