[PATCHv7][ 1/3] DT: Add basic support for imx35-based devices.
Denis Carikli
denis at eukrea.com
Fri Nov 8 06:43:29 EST 2013
From: Steffen Trumtrar <s.trumtrar at pengutronix.de>
Cc: Pawel Moll <pawel.moll at arm.com>
Cc: Mark Rutland <mark.rutland at arm.com>
Cc: Stephen Warren <swarren at wwwdotorg.org>
Cc: Ian Campbell <ijc+devicetree at hellion.org.uk>
Cc: Grant Likely <grant.likely at linaro.org>
Cc: Rob Herring <rob.herring at calxeda.com>
Cc: devicetree at vger.kernel.org
Cc: Russell King <linux at arm.linux.org.uk>
Cc: Sascha Hauer <kernel at pengutronix.de>
Cc: Shawn Guo <shawn.guo at linaro.org>
Cc: linux-arm-kernel at lists.infradead.org
Cc: Eric Bénard <eric at eukrea.com>
Signed-off-by: Steffen Trumtrar <s.trumtrar at pengutronix.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
Signed-off-by: Denis Carikli <denis at eukrea.com>
---
ChangeLog v6->v7:
- Added Grant Likely in the Cc list.
- Added imx35-pingrp.h, and converted the rest of the patch to use it.
- lcdc pads were moved from the dtsi into another commit.
- A whitespace issue in the dtsi was removed.
ChangeLog v5->v6:
- The dependency on pdata clocks has been removed,
and the dtsi adapted accordinly.
- Adaptation to the for-next branch of Shawn Guo at
git://git.linaro.org/people/shawnguo/linux-2.6.git for-next
- imx35-dt.c: very small whitespace cleanup.
- Kconfig: The selection of IMX_HAVE_PLATFORM_* has been removed.
- dtsi: The nodes were reordered alphabetically.
- dtsi: The aliases have been reordered alphabetically.
- Shawn Guo was added in the Cc.
---
.../devicetree/bindings/clock/imx35-clock.txt | 115 ++++++
arch/arm/boot/dts/imx35-pingrp.h | 100 ++++++
arch/arm/boot/dts/imx35.dtsi | 368 ++++++++++++++++++++
arch/arm/mach-imx/Kconfig | 9 +
arch/arm/mach-imx/Makefile | 1 +
arch/arm/mach-imx/clk-imx35.c | 18 +
arch/arm/mach-imx/common.h | 1 +
arch/arm/mach-imx/imx35-dt.c | 48 +++
8 files changed, 660 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/imx35-clock.txt
create mode 100644 arch/arm/boot/dts/imx35-pingrp.h
create mode 100644 arch/arm/boot/dts/imx35.dtsi
create mode 100644 arch/arm/mach-imx/imx35-dt.c
diff --git a/Documentation/devicetree/bindings/clock/imx35-clock.txt b/Documentation/devicetree/bindings/clock/imx35-clock.txt
new file mode 100644
index 0000000..9f9a60d
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/imx35-clock.txt
@@ -0,0 +1,115 @@
+* Clock bindings for Freescale i.MX35
+
+Required properties:
+- compatible: Should be "fsl,imx35-ccm"
+- reg: Address and length of the register set
+- interrupts: Should contain CCM interrupt
+- #clock-cells: Should be <1>
+
+The clock consumer should specify the desired clock by having the clock
+ID in its "clocks" phandle cell. The following is a full list of i.MX35
+clocks and IDs.
+
+ Clock ID
+ ---------------------------
+ ckih 0
+ mpll 1
+ ppll 2
+ mpll_075 3
+ arm 4
+ hsp 5
+ hsp_div 6
+ hsp_sel 7
+ ahb 8
+ ipg 9
+ arm_per_div 10
+ ahb_per_div 11
+ ipg_per 12
+ uart_sel 13
+ uart_div 14
+ esdhc_sel 15
+ esdhc1_div 16
+ esdhc2_div 17
+ esdhc3_div 18
+ spdif_sel 19
+ spdif_div_pre 20
+ spdif_div_post 21
+ ssi_sel 22
+ ssi1_div_pre 23
+ ssi1_div_post 24
+ ssi2_div_pre 25
+ ssi2_div_post 26
+ usb_sel 27
+ usb_div 28
+ nfc_div 29
+ asrc_gate 30
+ pata_gate 31
+ audmux_gate 32
+ can1_gate 33
+ can2_gate 34
+ cspi1_gate 35
+ cspi2_gate 36
+ ect_gate 37
+ edio_gate 38
+ emi_gate 39
+ epit1_gate 40
+ epit2_gate 41
+ esai_gate 42
+ esdhc1_gate 43
+ esdhc2_gate 44
+ esdhc3_gate 45
+ fec_gate 46
+ gpio1_gate 47
+ gpio2_gate 48
+ gpio3_gate 49
+ gpt_gate 50
+ i2c1_gate 51
+ i2c2_gate 52
+ i2c3_gate 53
+ iomuxc_gate 54
+ ipu_gate 55
+ kpp_gate 56
+ mlb_gate 57
+ mshc_gate 58
+ owire_gate 59
+ pwm_gate 60
+ rngc_gate 61
+ rtc_gate 62
+ rtic_gate 63
+ scc_gate 64
+ sdma_gate 65
+ spba_gate 66
+ spdif_gate 67
+ ssi1_gate 68
+ ssi2_gate 69
+ uart1_gate 70
+ uart2_gate 71
+ uart3_gate 72
+ usbotg_gate 73
+ wdog_gate 74
+ max_gate 75
+ admux_gate 76
+ csi_gate 77
+ csi_div 78
+ csi_sel 79
+ iim_gate 80
+ gpu2d_gate 81
+ clk_max 82
+
+Examples:
+
+clks: ccm at 53f80000 {
+ compatible = "fsl,imx35-ccm";
+ reg = <0x53f80000 0x4000>;
+ interrupts = <31>;
+ #clock-cells = <1>;
+};
+
+esdhc1: esdhc at 53fb4000 {
+ compatible = "fsl,imx35-esdhc";
+ reg = <0x53fb4000 0x4000>;
+ interrupts = <7>;
+ clocks = <&clks 9>, <&clks 8>, <&clks 43>;
+ clock-names = "ipg", "ahb", "per";
+ status = "disabled";
+};
diff --git a/arch/arm/boot/dts/imx35-pingrp.h b/arch/arm/boot/dts/imx35-pingrp.h
new file mode 100644
index 0000000..56fa422
--- /dev/null
+++ b/arch/arm/boot/dts/imx35-pingrp.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright 2013 Eukréa Electromatique <denis at eukrea.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __DTS_IMX35_PINGRP_H
+#define __DTS_IMX35_PINGRP_H
+
+#define MX35_AUDMUX_PINGRP1 \
+ MX35_PAD_STXFS4__AUDMUX_AUD4_TXFS 0x80000000 \
+ MX35_PAD_STXD4__AUDMUX_AUD4_TXD 0x80000000 \
+ MX35_PAD_SRXD4__AUDMUX_AUD4_RXD 0x80000000 \
+ MX35_PAD_SCK4__AUDMUX_AUD4_TXC 0x80000000
+
+#define MX35_CAN1_PINGRP1 \
+ MX35_PAD_I2C2_CLK__CAN1_TXCAN 0x1c0 \
+ MX35_PAD_I2C2_DAT__CAN1_RXCAN 0x1c0
+
+#define MX35_CAN2_PINGRP1 \
+ MX35_PAD_TX5_RX0__CAN2_TXCAN 0x1c0 \
+ MX35_PAD_TX4_RX1__CAN2_RXCAN 0x1c0
+
+#define MX35_ESDHC1_PINGRP1 \
+ MX35_PAD_SD1_CMD__ESDHC1_CMD 0x80000000 \
+ MX35_PAD_SD1_CLK__ESDHC1_CLK 0x80000000 \
+ MX35_PAD_SD1_DATA0__ESDHC1_DAT0 0x80000000 \
+ MX35_PAD_SD1_DATA1__ESDHC1_DAT1 0x80000000 \
+ MX35_PAD_SD1_DATA2__ESDHC1_DAT2 0x80000000 \
+ MX35_PAD_SD1_DATA3__ESDHC1_DAT3 0x80000000
+
+#define MX35_FEC_PINGRP1 \
+ MX35_PAD_FEC_TX_CLK__FEC_TX_CLK 0x80000000 \
+ MX35_PAD_FEC_RX_CLK__FEC_RX_CLK 0x80000000 \
+ MX35_PAD_FEC_RX_DV__FEC_RX_DV 0x80000000 \
+ MX35_PAD_FEC_COL__FEC_COL 0x80000000 \
+ MX35_PAD_FEC_RDATA0__FEC_RDATA_0 0x80000000 \
+ MX35_PAD_FEC_TDATA0__FEC_TDATA_0 0x80000000 \
+ MX35_PAD_FEC_TX_EN__FEC_TX_EN 0x80000000 \
+ MX35_PAD_FEC_MDC__FEC_MDC 0x80000000 \
+ MX35_PAD_FEC_MDIO__FEC_MDIO 0x80000000 \
+ MX35_PAD_FEC_TX_ERR__FEC_TX_ERR 0x80000000 \
+ MX35_PAD_FEC_RX_ERR__FEC_RX_ERR 0x80000000 \
+ MX35_PAD_FEC_CRS__FEC_CRS 0x80000000 \
+ MX35_PAD_FEC_RDATA1__FEC_RDATA_1 0x80000000 \
+ MX35_PAD_FEC_TDATA1__FEC_TDATA_1 0x80000000 \
+ MX35_PAD_FEC_RDATA2__FEC_RDATA_2 0x80000000 \
+ MX35_PAD_FEC_TDATA2__FEC_TDATA_2 0x80000000 \
+ MX35_PAD_FEC_RDATA3__FEC_RDATA_3 0x80000000 \
+ MX35_PAD_FEC_TDATA3__FEC_TDATA_3 0x80000000
+
+#define MX35_I2C1_PINGRP1 \
+ MX35_PAD_I2C1_CLK__I2C1_SCL 0x80000000 \
+ MX35_PAD_I2C1_DAT__I2C1_SDA 0x80000000
+
+#define MX35_I2C3_PINGRP1 \
+ MX35_PAD_ATA_DATA12__I2C3_SCL 0x1c0 \
+ MX35_PAD_ATA_DATA13__I2C3_SDA 0x1c0
+
+#define MX35_IPU_PINGRP1 \
+ MX35_PAD_LD0__IPU_DISPB_DAT_0 0x80000000 \
+ MX35_PAD_LD1__IPU_DISPB_DAT_1 0x80000000 \
+ MX35_PAD_LD2__IPU_DISPB_DAT_2 0x80000000 \
+ MX35_PAD_LD3__IPU_DISPB_DAT_3 0x80000000 \
+ MX35_PAD_LD4__IPU_DISPB_DAT_4 0x80000000 \
+ MX35_PAD_LD5__IPU_DISPB_DAT_5 0x80000000 \
+ MX35_PAD_LD6__IPU_DISPB_DAT_6 0x80000000 \
+ MX35_PAD_LD7__IPU_DISPB_DAT_7 0x80000000 \
+ MX35_PAD_LD8__IPU_DISPB_DAT_8 0x80000000 \
+ MX35_PAD_LD9__IPU_DISPB_DAT_9 0x80000000 \
+ MX35_PAD_LD10__IPU_DISPB_DAT_10 0x80000000 \
+ MX35_PAD_LD11__IPU_DISPB_DAT_11 0x80000000 \
+ MX35_PAD_LD12__IPU_DISPB_DAT_12 0x80000000 \
+ MX35_PAD_LD13__IPU_DISPB_DAT_13 0x80000000 \
+ MX35_PAD_LD14__IPU_DISPB_DAT_14 0x80000000 \
+ MX35_PAD_LD15__IPU_DISPB_DAT_15 0x80000000 \
+ MX35_PAD_LD16__IPU_DISPB_DAT_16 0x80000000 \
+ MX35_PAD_LD17__IPU_DISPB_DAT_17 0x80000000 \
+ MX35_PAD_D3_HSYNC__IPU_DISPB_D3_HSYNC 0x80000000 \
+ MX35_PAD_D3_FPSHIFT__IPU_DISPB_D3_CLK 0x80000000 \
+ MX35_PAD_D3_DRDY__IPU_DISPB_D3_DRDY 0x80000000 \
+ MX35_PAD_D3_VSYNC__IPU_DISPB_D3_VSYNC 0x80000000 \
+ MX35_PAD_CONTRAST__IPU_DISPB_CONTR 0x80000000
+
+#define MX35_UART1_PINGRP1 \
+ MX35_PAD_CTS1__UART1_CTS 0x80000000 \
+ MX35_PAD_RTS1__UART1_RTS 0x80000000 \
+ MX35_PAD_TXD1__UART1_TXD_MUX 0x80000000 \
+ MX35_PAD_RXD1__UART1_RXD_MUX 0x80000000
+
+#define MX35_UART2_PINGRP1 \
+ MX35_PAD_RTS2__UART2_RTS 0x80000000 \
+ MX35_PAD_CTS2__UART2_CTS 0x80000000 \
+ MX35_PAD_RXD2__UART2_RXD_MUX 0x80000000 \
+ MX35_PAD_TXD2__UART2_TXD_MUX 0x80000000
+
+#endif /* __DTS_IMX35_PINGRP_H */
diff --git a/arch/arm/boot/dts/imx35.dtsi b/arch/arm/boot/dts/imx35.dtsi
new file mode 100644
index 0000000..1cf520a
--- /dev/null
+++ b/arch/arm/boot/dts/imx35.dtsi
@@ -0,0 +1,368 @@
+/*
+ * Copyright 2012 Steffen Trumtrar, Pengutronix
+ *
+ * based on imx27.dtsi
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation.
+ */
+
+#include "skeleton.dtsi"
+#include "imx35-pinfunc.h"
+#include "imx35-pingrp.h"
+
+/ {
+ aliases {
+ gpio0 = &gpio1;
+ gpio1 = &gpio2;
+ gpio2 = &gpio3;
+ serial0 = &uart1;
+ serial1 = &uart2;
+ serial2 = &uart3;
+ };
+
+ avic: avic-interrupt-controller at 68000000 {
+ compatible = "fsl,imx35-avic", "fsl,avic";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ reg = <0x68000000 0x10000000>;
+ };
+
+ clocks {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ckil {
+ compatible = "fsl,imx-ckil", "fixed-clock";
+ clock-frequency = <32768>;
+ };
+
+ osc {
+ compatible = "fsl,imx-osc", "fixed-clock";
+ clock-frequency = <24000000>;
+ };
+ };
+
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+ interrupt-parent = <&avic>;
+ ranges;
+
+ L2: l2-cache at 30000000 {
+ compatible = "arm,l210-cache";
+ reg = <0x30000000 0x1000>;
+ cache-unified;
+ cache-level = <2>;
+ };
+
+ aips1: aips at 43f00000 {
+ compatible = "fsl,aips", "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x43f00000 0x100000>;
+ ranges;
+
+ i2c1: i2c at 43f80000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,imx35-i2c", "fsl,imx1-i2c";
+ reg = <0x43f80000 0x4000>;
+ clocks = <&clks 51>;
+ clock-names = "ipg_per";
+ interrupts = <10>;
+ status = "disabled";
+ };
+
+ i2c3: i2c at 43f84000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,imx35-i2c", "fsl,imx1-i2c";
+ reg = <0x43f84000 0x4000>;
+ clocks = <&clks 53>;
+ clock-names = "ipg_per";
+ interrupts = <3>;
+ status = "disabled";
+ };
+
+ uart1: serial at 43f90000 {
+ compatible = "fsl,imx35-uart", "fsl,imx21-uart";
+ reg = <0x43f90000 0x4000>;
+ clocks = <&clks 9>, <&clks 70>;
+ clock-names = "ipg", "per";
+ interrupts = <45>;
+ status = "disabled";
+ };
+
+ uart2: serial at 43f94000 {
+ compatible = "fsl,imx35-uart", "fsl,imx21-uart";
+ reg = <0x43f94000 0x4000>;
+ clocks = <&clks 9>, <&clks 71>;
+ clock-names = "ipg", "per";
+ interrupts = <32>;
+ status = "disabled";
+ };
+
+ i2c2: i2c at 43f98000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,imx35-i2c", "fsl,imx1-i2c";
+ reg = <0x43f98000 0x4000>;
+ clocks = <&clks 52>;
+ clock-names = "ipg_per";
+ interrupts = <4>;
+ status = "disabled";
+ };
+
+ ssi1: ssi at 43fa0000 {
+ compatible = "fsl,imx35-ssi", "fsl,imx21-ssi";
+ reg = <0x43fa0000 0x4000>;
+ interrupts = <11>;
+ clocks = <&clks 68>;
+ dmas = <&sdma 28 0 0>,
+ <&sdma 29 0 0>;
+ dma-names = "rx", "tx";
+ fsl,fifo-depth = <15>;
+ fsl,ssi-dma-events = <29 28 27 26>; /* TX0 RX0 TX1 RX1 */
+ status = "disabled";
+ };
+
+ iomuxc: iomuxc at 43fac000 {
+ compatible = "fsl,imx35-iomuxc";
+ reg = <0x43fac000 0x4000>;
+
+ audmux {
+ pinctrl_audmux_1: audmuxgrp-1 {
+ fsl,pins = <MX35_AUDMUX_PINGRP1>;
+ };
+ };
+
+ can1 {
+ pinctrl_can1_1: can1grp-1 {
+ fsl,pins = <MX35_CAN1_PINGRP1>;
+ };
+ };
+
+ can2 {
+ pinctrl_can2_1: can2grp-1 {
+ fsl,pins = <MX35_CAN2_PINGRP1>;
+ };
+ };
+
+ esdhc1 {
+ pinctrl_esdhc1_1: esdhc1grp-1 {
+ fsl,pins = <MX35_ESDHC1_PINGRP1>;
+ };
+ };
+
+ fec {
+ pinctrl_fec_1: fecgrp-1 {
+ fsl,pins = <MX35_FEC_PINGRP1>;
+ };
+ };
+
+ i2c1 {
+ pinctrl_i2c1_1: i2c1grp-1 {
+ fsl,pins = <MX35_I2C1_PINGRP1>;
+ };
+ };
+
+ i2c3 {
+ pinctrl_i2c3_1: i2c3grp-1 {
+ fsl,pins = <MX35_I2C3_PINGRP1>;
+ };
+ };
+
+ uart1 {
+ pinctrl_uart1_1: uart1grp-1 {
+ fsl,pins = <MX35_UART1_PINGRP1>;
+ };
+ };
+
+ uart2 {
+ pinctrl_uart2_1: uart2grp-1 {
+ fsl,pins = <MX35_UART2_PINGRP1>;
+ };
+ };
+ };
+ };
+
+ spba: spba-bus at 50000000 {
+ compatible = "fsl,spba-bus", "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x50000000 0x100000>;
+ ranges;
+
+ uart3: serial at 5000c000 {
+ compatible = "fsl,imx35-uart", "fsl,imx21-uart";
+ reg = <0x5000c000 0x4000>;
+ clocks = <&clks 9>, <&clks 72>;
+ clock-names = "ipg", "per";
+ interrupts = <18>;
+ status = "disabled";
+ };
+
+ fec: fec at 50038000 {
+ compatible = "fsl,imx35-fec", "fsl,imx27-fec";
+ reg = <0x50038000 0x4000>;
+ clocks = <&clks 46>, <&clks 8>;
+ clock-names = "ipg", "ahb";
+ interrupts = <57>;
+ status = "disabled";
+ };
+ };
+
+ aips2: aips at 53f00000 {
+ compatible = "fsl,aips", "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x53f00000 0x100000>;
+ ranges;
+
+ clks: ccm at 53f80000 {
+ compatible = "fsl,imx35-ccm";
+ reg = <0x53f80000 0x4000>;
+ interrupts = <31>;
+ #clock-cells = <1>;
+ };
+
+ gpio3: gpio at 53fa4000 {
+ compatible = "fsl,imx35-gpio", "fsl,imx31-gpio";
+ reg = <0x53fa4000 0x4000>;
+ interrupts = <56>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ esdhc1: esdhc at 53fb4000 {
+ compatible = "fsl,imx35-esdhc";
+ reg = <0x53fb4000 0x4000>;
+ interrupts = <7>;
+ clocks = <&clks 9>, <&clks 8>, <&clks 43>;
+ clock-names = "ipg", "ahb", "per";
+ status = "disabled";
+ };
+
+ esdhc2: esdhc at 53fb8000 {
+ compatible = "fsl,imx35-esdhc";
+ reg = <0x53fb8000 0x4000>;
+ interrupts = <8>;
+ clocks = <&clks 9>, <&clks 8>, <&clks 44>;
+ clock-names = "ipg", "ahb", "per";
+ status = "disabled";
+ };
+
+ esdhc3: esdhc at 53fbc000 {
+ compatible = "fsl,imx35-esdhc";
+ reg = <0x53fbc000 0x4000>;
+ interrupts = <9>;
+ clocks = <&clks 9>, <&clks 8>, <&clks 45>;
+ clock-names = "ipg", "ahb", "per";
+ status = "disabled";
+ };
+
+ audmux: audmux at 53fc4000 {
+ compatible = "fsl,imx35-audmux", "fsl,imx31-audmux";
+ reg = <0x53fc4000 0x4000>;
+ status = "disabled";
+ };
+
+ gpio1: gpio at 53fcc000 {
+ compatible = "fsl,imx35-gpio", "fsl,imx31-gpio";
+ reg = <0x53fcc000 0x4000>;
+ interrupts = <52>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gpio2: gpio at 53fd0000 {
+ compatible = "fsl,imx35-gpio", "fsl,imx31-gpio";
+ reg = <0x53fd0000 0x4000>;
+ interrupts = <51>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ sdma: sdma at 53fd4000 {
+ compatible = "fsl,imx35-sdma";
+ reg = <0x53fd4000 0x4000>;
+ clocks = <&clks 9>, <&clks 65>;
+ clock-names = "ipg", "ahb";
+ #dma-cells = <3>;
+ interrupts = <34>;
+ fsl,sdma-ram-script-name = "imx/sdma/sdma-imx35.bin";
+ };
+
+ wdog: wdog at 53fdc000 {
+ compatible = "fsl,imx35-wdt", "fsl,imx21-wdt";
+ reg = <0x53fdc000 0x4000>;
+ clocks = <&clks 74>;
+ clock-names = "";
+ interrupts = <55>;
+ };
+
+ can1: can at 53fe4000 {
+ compatible = "fsl,imx35-flexcan", "fsl,p1010-flexcan";
+ reg = <0x53fe4000 0x1000>;
+ clocks = <&clks 33>;
+ clock-names = "ipg";
+ interrupts = <43>;
+ status = "disabled";
+ };
+
+ can2: can at 53fe8000 {
+ compatible = "fsl,imx35-flexcan", "fsl,p1010-flexcan";
+ reg = <0x53fe8000 0x1000>;
+ clocks = <&clks 34>;
+ clock-names = "ipg";
+ interrupts = <44>;
+ status = "disabled";
+ };
+ };
+
+ emi at 80000000 { /* External Memory Interface */
+ compatible = "fsl,emi", "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x80000000 0x40000000>;
+ ranges;
+
+ nfc: nand at bb000000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ compatible = "fsl,imx35-nand", "fsl,imx25-nand";
+ reg = <0xbb000000 0x2000>;
+ clocks = <&clks 29>;
+ clock-names = "";
+ interrupts = <33>;
+ status = "disabled";
+ };
+
+ weim: weim at b8002000 {
+ #address-cells = <2>;
+ #size-cells = <1>;
+ compatible = "fsl,imx35-weim";
+ reg = <0xb8002000 0x1000>;
+ ranges = <
+ 0 0 0xa0000000 0x8000000
+ 1 0 0xa8000000 0x8000000
+ 2 0 0xb0000000 0x2000000
+ 3 0 0xb2000000 0x2000000
+ 4 0 0xb4000000 0x2000000
+ 5 0 0xb6000000 0x2000000
+ >;
+ status = "disabled";
+ };
+ };
+ };
+};
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 2b90984..b1b3b6a 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -616,6 +616,15 @@ config MACH_IMX31_DT
comment "MX35 platforms:"
+config MACH_IMX35_DT
+ bool "Support i.MX35 platforms from device tree"
+ select SOC_IMX35
+ select PINCTRL
+ select PINCTRL_IMX35
+ help
+ Include support for Freescale i.MX35 based platforms
+ using the device tree for discovery.
+
config MACH_PCM043
bool "Support Phytec pcm043 (i.MX35) platforms"
select IMX_HAVE_PLATFORM_FLEXCAN
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index 0db1697..befcaf5 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -89,6 +89,7 @@ obj-$(CONFIG_MACH_MX35_3DS) += mach-mx35_3ds.o
obj-$(CONFIG_MACH_EUKREA_CPUIMX35SD) += mach-cpuimx35.o
obj-$(CONFIG_MACH_EUKREA_MBIMXSD35_BASEBOARD) += eukrea_mbimxsd35-baseboard.o
obj-$(CONFIG_MACH_VPR200) += mach-vpr200.o
+obj-$(CONFIG_MACH_IMX35_DT) += imx35-dt.o
obj-$(CONFIG_HAVE_IMX_ANATOP) += anatop.o
obj-$(CONFIG_HAVE_IMX_GPC) += gpc.o
diff --git a/arch/arm/mach-imx/clk-imx35.c b/arch/arm/mach-imx/clk-imx35.c
index 2193c83..cea861b 100644
--- a/arch/arm/mach-imx/clk-imx35.c
+++ b/arch/arm/mach-imx/clk-imx35.c
@@ -45,6 +45,8 @@ static struct arm_ahb_div clk_consumer[] = {
static char hsp_div_532[] = { 4, 8, 3, 0 };
static char hsp_div_400[] = { 3, 6, 3, 0 };
+static struct clk_onecell_data clk_data;
+
static const char *std_sel[] = {"ppll", "arm"};
static const char *ipg_per_sel[] = {"ahb_per_div", "arm_per_div"};
@@ -286,3 +288,19 @@ int __init mx35_clocks_init(void)
return 0;
}
+
+int __init mx35_clocks_init_dt(void)
+{
+ struct device_node *np;
+ void __iomem *base;
+ int irq;
+
+ np = of_find_compatible_node(NULL, NULL, "fsl,imx35-ccm");
+ clk_data.clks = clk;
+ clk_data.clk_num = ARRAY_SIZE(clk);
+ of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
+
+ mx35_clocks_init();
+
+ return 0;
+}
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index 59c3b9b..6919b7d 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -65,6 +65,7 @@ int mx35_clocks_init(void);
int mx51_clocks_init(unsigned long ckil, unsigned long osc,
unsigned long ckih1, unsigned long ckih2);
int mx25_clocks_init_dt(void);
+int mx35_clocks_init_dt(void);
int mx27_clocks_init_dt(void);
int mx31_clocks_init_dt(void);
struct platform_device *mxc_register_gpio(char *name, int id,
diff --git a/arch/arm/mach-imx/imx35-dt.c b/arch/arm/mach-imx/imx35-dt.c
new file mode 100644
index 0000000..e3def45
--- /dev/null
+++ b/arch/arm/mach-imx/imx35-dt.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2012 Steffen Trumtrar, Pengutronix
+ *
+ * based on imx27-dt.c
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation.
+ */
+
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <asm/hardware/cache-l2x0.h>
+#include "common.h"
+#include "mx35.h"
+
+static void __init imx35_dt_init(void)
+{
+ mxc_arch_reset_init_dt();
+
+ of_platform_populate(NULL, of_default_bus_match_table,
+ NULL, NULL);
+}
+
+static void __init imx35_timer_init(void)
+{
+ mx35_clocks_init_dt();
+}
+
+static const char *imx35_dt_board_compat[] __initdata = {
+ "fsl,imx35",
+ NULL
+};
+
+DT_MACHINE_START(IMX35_DT, "Freescale i.MX35 (Device Tree Support)")
+ .map_io = mx35_map_io,
+ .init_early = imx35_init_early,
+ .init_irq = mx35_init_irq,
+ .handle_irq = imx35_handle_irq,
+ .init_time = imx35_timer_init,
+ .init_machine = imx35_dt_init,
+ .dt_compat = imx35_dt_board_compat,
+ .restart = mxc_restart,
+MACHINE_END
--
1.7.9.5
More information about the linux-arm-kernel
mailing list