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| author |   David Lechner <david@lechnology.com> | 2017-01-05 12:54:18 -0600 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-12 11:51:25 +0100 |
| commit | a2d6a987bfe4a2e344fae9d255200072eb082427 (patch) | |
| tree | 1c359520dd331f98d68a4e8bf329eebd2a935805 /include/uapi/linux/serial_reg.h | |
| parent | doc: DT: Add ti,da830-uart to serial/8250 bindings (diff) | |
| download | linux-dev-a2d6a987bfe4a2e344fae9d255200072eb082427.tar.xz linux-dev-a2d6a987bfe4a2e344fae9d255200072eb082427.zip | |
serial: 8250: Add new port type for TI DA8xx/66AK2x
This adds a new UART port type for TI DA8xx/OMAPL13x/AM17xx/AM18xx/66AK2x.
These SoCs have standard 8250 registers plus some extra non-standard
registers.
The UART will not function unless the non-standard Power and Emulation
Management Register (PWREMU_MGMT) is configured correctly. This is
currently handled in arch/arm/mach-davinci/serial.c for non-device-tree
boards. Making this part of the UART driver will allow UART to work on
device-tree boards as well and the mach code can eventually be removed.
Signed-off-by: David Lechner <david@lechnology.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/uapi/linux/serial_reg.h')
| -rw-r--r-- | include/uapi/linux/serial_reg.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/uapi/linux/serial_reg.h b/include/uapi/linux/serial_reg.h index b4c04842a8c0..274d8fc206e3 100644 --- a/include/uapi/linux/serial_reg.h +++ b/include/uapi/linux/serial_reg.h @@ -327,6 +327,14 @@ #define SERIAL_RSA_BAUD_BASE (921600) #define SERIAL_RSA_BAUD_BASE_LO (SERIAL_RSA_BAUD_BASE / 8) +/* Extra registers for TI DA8xx/66AK2x */ +#define UART_DA830_PWREMU_MGMT 12 + +/* PWREMU_MGMT register bits */ +#define UART_DA830_PWREMU_MGMT_FREE (1 << 0) /* Free-running mode */ +#define UART_DA830_PWREMU_MGMT_URRST (1 << 13) /* Receiver reset/enable */ +#define UART_DA830_PWREMU_MGMT_UTRST (1 << 14) /* Transmitter reset/enable */ + /* * Extra serial register definitions for the internal UARTs * in TI OMAP processors. |