diff options
Diffstat (limited to 'target/linux/ath79/patches-4.19/0060-serial-ar933x_uart-set-UART_CS_-RX-TX-_READY_ORIDE.patch')
-rw-r--r-- | target/linux/ath79/patches-4.19/0060-serial-ar933x_uart-set-UART_CS_-RX-TX-_READY_ORIDE.patch | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/target/linux/ath79/patches-4.19/0060-serial-ar933x_uart-set-UART_CS_-RX-TX-_READY_ORIDE.patch b/target/linux/ath79/patches-4.19/0060-serial-ar933x_uart-set-UART_CS_-RX-TX-_READY_ORIDE.patch deleted file mode 100644 index 30828d693c..0000000000 --- a/target/linux/ath79/patches-4.19/0060-serial-ar933x_uart-set-UART_CS_-RX-TX-_READY_ORIDE.patch +++ /dev/null @@ -1,64 +0,0 @@ -From patchwork Fri Feb 7 09:53:35 2020 -Content-Type: text/plain; charset="utf-8" -MIME-Version: 1.0 -Content-Transfer-Encoding: 7bit -X-Patchwork-Submitter: Daniel Golle <daniel@makrotopia.org> -X-Patchwork-Id: 1190470 -Date: Fri, 7 Feb 2020 11:53:35 +0200 -From: Daniel Golle <daniel@makrotopia.org> -To: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org -Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>, - Jiri Slaby <jslaby@suse.com>, - Chuanhong Guo <gch981213@gmail.com>, - Eitan Cohen <eitan@neot-semadar.com>, - Ori Gofen <origofen@gmail.com> -Subject: [PATCH] serial: ar933x_uart: set UART_CS_{RX,TX}_READY_ORIDE -Message-ID: <20200207095335.GA179836@makrotopia.org> -MIME-Version: 1.0 -Content-Disposition: inline -Sender: linux-kernel-owner@vger.kernel.org -Precedence: bulk -List-ID: <linux-kernel.vger.kernel.org> -X-Mailing-List: linux-kernel@vger.kernel.org - -On AR934x this UART is usually not initialized by the bootloader -as it is only used as a secondary serial port while the primary -UART is a newly introduced NS16550-compatible. -In order to make use of the ar933x-uart on AR934x without RTS/CTS -hardware flow control, one needs to set the -UART_CS_{RX,TX}_READY_ORIDE bits as other than on AR933x where this -UART is used as primary/console, the bootloader on AR934x typically -doesn't set those bits. -Setting them explicitely on AR933x should not do any harm, so just -set them unconditionally. - -Tested-by: Chuanhong Guo <gch981213@gmail.com> -Signed-off-by: Daniel Golle <daniel@makrotopia.org> ---- - drivers/tty/serial/ar933x_uart.c | 8 ++++++++ - 1 file changed, 8 insertions(+) - ---- a/drivers/tty/serial/ar933x_uart.c -+++ b/drivers/tty/serial/ar933x_uart.c -@@ -290,6 +290,10 @@ static void ar933x_uart_set_termios(stru - ar933x_uart_rmw_set(up, AR933X_UART_CS_REG, - AR933X_UART_CS_TX_READY_ORIDE | AR933X_UART_CS_RX_READY_ORIDE); - -+ /* enable RX and TX ready overide */ -+ ar933x_uart_rmw_set(up, AR933X_UART_CS_REG, -+ AR933X_UART_CS_TX_READY_ORIDE | AR933X_UART_CS_RX_READY_ORIDE); -+ - /* reenable the UART */ - ar933x_uart_rmw(up, AR933X_UART_CS_REG, - AR933X_UART_CS_IF_MODE_M << AR933X_UART_CS_IF_MODE_S, -@@ -424,6 +428,10 @@ static int ar933x_uart_startup(struct ua - - /* enable RX and TX ready overide */ - ar933x_uart_rmw_set(up, AR933X_UART_CS_REG, -+ AR933X_UART_CS_TX_READY_ORIDE | AR933X_UART_CS_RX_READY_ORIDE); -+ -+ /* enable RX and TX ready overide */ -+ ar933x_uart_rmw_set(up, AR933X_UART_CS_REG, - AR933X_UART_CS_TX_READY_ORIDE | AR933X_UART_CS_RX_READY_ORIDE); - - /* Enable RX interrupts */ |