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| author | Linus Walleij <linus.walleij@linaro.org> | 2015-07-23 23:14:20 +0200 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2015-08-11 15:29:58 +0200 |
| commit | 1cb3375bb53719a2d90793b5bc47f99c21dc6b72 (patch) | |
| tree | 5767be93f28fecc478eba77a6fdd8270dab722b3 | |
| parent | 4cec8cd790e3645d2e5ddf01cbe4ed2a90dcd94f (diff) | |
| download | linux-1cb3375bb53719a2d90793b5bc47f99c21dc6b72.tar.bz2 | |
ARM: nomadik: selectively enable UART0 on boards
The S8815 board is using RX/TX on UART0, and the NHK8815 is
using RX/TX and CTS/RTS (the latter connected to a Bluetooth
chip). Activate the right groups with the u0 UART0 function
on each board and undisable it. Get rid of the old erroneous
default definition from the SoC file.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
| -rw-r--r-- | arch/arm/boot/dts/ste-nomadik-nhk15.dts | 16 | ||||
| -rw-r--r-- | arch/arm/boot/dts/ste-nomadik-s8815.dts | 18 | ||||
| -rw-r--r-- | arch/arm/boot/dts/ste-nomadik-stn8815.dtsi | 10 |
3 files changed, 33 insertions, 11 deletions
diff --git a/arch/arm/boot/dts/ste-nomadik-nhk15.dts b/arch/arm/boot/dts/ste-nomadik-nhk15.dts index 0e167ed2857b..9d888b0e75af 100644 --- a/arch/arm/boot/dts/ste-nomadik-nhk15.dts +++ b/arch/arm/boot/dts/ste-nomadik-nhk15.dts @@ -17,12 +17,22 @@ }; aliases { + serial0 = &uart0; serial1 = &uart1; stmpe-i2c0 = &stmpe0; stmpe-i2c1 = &stmpe1; }; pinctrl { + uart0 { + uart0_nhk_mode: uart0_mux { + u0_default_mux { + function = "u0"; + groups = "u0txrx_a_1", "u0ctsrts_a_1"; + }; + }; + }; + stmpe2401_1 { stmpe2401_1_nhk_mode: stmpe2401_1_nhk { nhk_cfg1 { @@ -146,6 +156,12 @@ }; amba { + /* Activate RX/TX and CTS/RTS on UART 0 */ + uart0: uart@101fd000 { + pinctrl-names = "default"; + pinctrl-0 = <&uart0_nhk_mode>; + status = "okay"; + }; mmcsd: sdi@101f6000 { cd-gpios = <&stmpe_gpio44 7 GPIO_ACTIVE_LOW>; wp-gpios = <&stmpe_gpio44 18 GPIO_ACTIVE_HIGH>; diff --git a/arch/arm/boot/dts/ste-nomadik-s8815.dts b/arch/arm/boot/dts/ste-nomadik-s8815.dts index edcfe2413ee7..11b5e34150b8 100644 --- a/arch/arm/boot/dts/ste-nomadik-s8815.dts +++ b/arch/arm/boot/dts/ste-nomadik-s8815.dts @@ -16,6 +16,7 @@ }; aliases { + serial0 = &uart0; serial1 = &uart1; }; @@ -40,6 +41,15 @@ pinctrl-names = "default"; pinctrl-0 = <&cd_default_mode>; + uart0 { + /* Only use RX/TX pins */ + uart0_s8815_mode: uart0_mux { + u0_default_mux { + function = "u0"; + groups = "u0txrx_a_1"; + }; + }; + }; mmcsd-cd { cd_default_mode: cd_default { cd_default_cfg1 { @@ -112,8 +122,14 @@ }; - /* Configure card detect for the uSD slot */ amba { + /* Activate RXTX on UART 0 */ + uart0: uart@101fd000 { + pinctrl-names = "default"; + pinctrl-0 = <&uart0_s8815_mode>; + status = "okay"; + }; + /* Configure card detect for the uSD slot */ mmcsd: sdi@101f6000 { cd-gpios = <&gpio3 15 GPIO_ACTIVE_LOW>; }; diff --git a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi index ef794a33b4dc..f68988ac800c 100644 --- a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi +++ b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi @@ -97,14 +97,6 @@ pinctrl { compatible = "stericsson,stn8815-pinctrl"; /* Pin configurations */ - uart0 { - uart0_default_mux: uart0_mux { - u0_default_mux { - function = "u0"; - groups = "u0_a_1"; - }; - }; - }; uart1 { uart1_default_mux: uart1_mux { u1_default_mux { @@ -755,8 +747,6 @@ interrupts = <12>; clocks = <&uart0clk>, <&pclkuart0>; clock-names = "uartclk", "apb_pclk"; - pinctrl-names = "default"; - pinctrl-0 = <&uart0_default_mux>; status = "disabled"; }; |