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authorShawn Guo <shawn.guo@linaro.org>2013-11-04 12:05:37 +0400
committerShawn Guo <shawn.guo@linaro.org>2014-02-09 17:32:26 +0400
commit5a2a7d57ee66a1347ba39a4b474dfad08e3a68a3 (patch)
tree4ae1d815679d16ac91eea151f7fbbef672ee7ade /arch/arm/boot/dts/imx51-apf51.dts
parent7ac0f700a6d747c2a8a873e301e82092306173e4 (diff)
downloadlinux-5a2a7d57ee66a1347ba39a4b474dfad08e3a68a3.tar.xz
ARM: dts: imx51: make pinctrl nodes board specific
Currently, all pinctrl setting nodes are defined in <soc>.dtsi, so that boards that share the same pinctrl setting do not have to define it time and time again in <board>.dts. However, along with the devices and use cases being added continuously, the pinctrl setting nodes under iomuxc becomes more than expected. This bloats device tree blob for particular board unnecessarily since only a small subset of those pinctrl setting nodes will be used by the board. It impacts not only the DTB file size but also the run-time device tree lookup efficiency. The patch moves all the pinctrl data into individual boards as needed. With the changes, the pinctrl setting nodes becomes local to particular board, and it makes no sense to continue numbering the setting for given peripheral. Thus, all the pinctrl phandler name gets updated to have only peripheral name in there. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Diffstat (limited to 'arch/arm/boot/dts/imx51-apf51.dts')
-rw-r--r--arch/arm/boot/dts/imx51-apf51.dts38
1 files changed, 36 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/imx51-apf51.dts b/arch/arm/boot/dts/imx51-apf51.dts
index b3606993f2e8..58ccf447e122 100644
--- a/arch/arm/boot/dts/imx51-apf51.dts
+++ b/arch/arm/boot/dts/imx51-apf51.dts
@@ -34,13 +34,47 @@
&fec {
pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_fec_2>;
+ pinctrl-0 = <&pinctrl_fec>;
phy-mode = "mii";
phy-reset-gpios = <&gpio3 0 0>;
phy-reset-duration = <1>;
status = "okay";
};
+&iomuxc {
+ imx51-apf51 {
+ pinctrl_fec: fecgrp {
+ fsl,pins = <
+ MX51_PAD_DI_GP3__FEC_TX_ER 0x80000000
+ MX51_PAD_DI2_PIN4__FEC_CRS 0x80000000
+ MX51_PAD_DI2_PIN2__FEC_MDC 0x80000000
+ MX51_PAD_DI2_PIN3__FEC_MDIO 0x80000000
+ MX51_PAD_DI2_DISP_CLK__FEC_RDATA1 0x80000000
+ MX51_PAD_DI_GP4__FEC_RDATA2 0x80000000
+ MX51_PAD_DISP2_DAT0__FEC_RDATA3 0x80000000
+ MX51_PAD_DISP2_DAT1__FEC_RX_ER 0x80000000
+ MX51_PAD_DISP2_DAT6__FEC_TDATA1 0x80000000
+ MX51_PAD_DISP2_DAT7__FEC_TDATA2 0x80000000
+ MX51_PAD_DISP2_DAT8__FEC_TDATA3 0x80000000
+ MX51_PAD_DISP2_DAT9__FEC_TX_EN 0x80000000
+ MX51_PAD_DISP2_DAT10__FEC_COL 0x80000000
+ MX51_PAD_DISP2_DAT11__FEC_RX_CLK 0x80000000
+ MX51_PAD_DISP2_DAT12__FEC_RX_DV 0x80000000
+ MX51_PAD_DISP2_DAT13__FEC_TX_CLK 0x80000000
+ MX51_PAD_DISP2_DAT14__FEC_RDATA0 0x80000000
+ MX51_PAD_DISP2_DAT15__FEC_TDATA0 0x80000000
+ >;
+ };
+
+ pinctrl_uart3: uart3grp {
+ fsl,pins = <
+ MX51_PAD_UART3_RXD__UART3_RXD 0x1c5
+ MX51_PAD_UART3_TXD__UART3_TXD 0x1c5
+ >;
+ };
+ };
+};
+
&nfc {
nand-bus-width = <8>;
nand-ecc-mode = "hw";
@@ -50,6 +84,6 @@
&uart3 {
pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_uart3_2>;
+ pinctrl-0 = <&pinctrl_uart3>;
status = "okay";
};