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-rw-r--r--arch/arm/boot/dts/imx28-evk.dts12
-rw-r--r--arch/arm/mach-mxs/mach-mxs.c50
2 files changed, 13 insertions, 49 deletions
diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts
index 3637bf3b1d59..1f0d38d7b16f 100644
--- a/arch/arm/boot/dts/imx28-evk.dts
+++ b/arch/arm/boot/dts/imx28-evk.dts
@@ -155,12 +155,14 @@
155 can0: can@80032000 { 155 can0: can@80032000 {
156 pinctrl-names = "default"; 156 pinctrl-names = "default";
157 pinctrl-0 = <&can0_pins_a>; 157 pinctrl-0 = <&can0_pins_a>;
158 xceiver-supply = <&reg_can_3v3>;
158 status = "okay"; 159 status = "okay";
159 }; 160 };
160 161
161 can1: can@80034000 { 162 can1: can@80034000 {
162 pinctrl-names = "default"; 163 pinctrl-names = "default";
163 pinctrl-0 = <&can1_pins_a>; 164 pinctrl-0 = <&can1_pins_a>;
165 xceiver-supply = <&reg_can_3v3>;
164 status = "okay"; 166 status = "okay";
165 }; 167 };
166 }; 168 };
@@ -319,6 +321,16 @@
319 gpio = <&gpio3 30 0>; 321 gpio = <&gpio3 30 0>;
320 enable-active-high; 322 enable-active-high;
321 }; 323 };
324
325 reg_can_3v3: can-3v3 {
326 compatible = "regulator-fixed";
327 regulator-name = "can-3v3";
328 regulator-min-microvolt = <3300000>;
329 regulator-max-microvolt = <3300000>;
330 gpio = <&gpio2 13 0>;
331 enable-active-high;
332 };
333
322 }; 334 };
323 335
324 sound { 336 sound {
diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c
index 5b62b6489d4b..97b8a44101cd 100644
--- a/arch/arm/mach-mxs/mach-mxs.c
+++ b/arch/arm/mach-mxs/mach-mxs.c
@@ -14,7 +14,6 @@
14#include <linux/clk/mxs.h> 14#include <linux/clk/mxs.h>
15#include <linux/clkdev.h> 15#include <linux/clkdev.h>
16#include <linux/clocksource.h> 16#include <linux/clocksource.h>
17#include <linux/can/platform/flexcan.h>
18#include <linux/delay.h> 17#include <linux/delay.h>
19#include <linux/err.h> 18#include <linux/err.h>
20#include <linux/gpio.h> 19#include <linux/gpio.h>
@@ -60,41 +59,6 @@ static inline void __mxs_togl(u32 mask, void __iomem *reg)
60 __raw_writel(mask, reg + MXS_TOG_ADDR); 59 __raw_writel(mask, reg + MXS_TOG_ADDR);
61} 60}
62 61
63/*
64 * MX28EVK_FLEXCAN_SWITCH is shared between both flexcan controllers
65 */
66#define MX28EVK_FLEXCAN_SWITCH MXS_GPIO_NR(2, 13)
67
68static int flexcan0_en, flexcan1_en;
69
70static void mx28evk_flexcan_switch(void)
71{
72 if (flexcan0_en || flexcan1_en)
73 gpio_set_value(MX28EVK_FLEXCAN_SWITCH, 1);
74 else
75 gpio_set_value(MX28EVK_FLEXCAN_SWITCH, 0);
76}
77
78static void mx28evk_flexcan0_switch(int enable)
79{
80 flexcan0_en = enable;
81 mx28evk_flexcan_switch();
82}
83
84static void mx28evk_flexcan1_switch(int enable)
85{
86 flexcan1_en = enable;
87 mx28evk_flexcan_switch();
88}
89
90static struct flexcan_platform_data flexcan_pdata[2];
91
92static struct of_dev_auxdata mxs_auxdata_lookup[] __initdata = {
93 OF_DEV_AUXDATA("fsl,imx28-flexcan", 0x80032000, NULL, &flexcan_pdata[0]),
94 OF_DEV_AUXDATA("fsl,imx28-flexcan", 0x80034000, NULL, &flexcan_pdata[1]),
95 { /* sentinel */ }
96};
97
98#define OCOTP_WORD_OFFSET 0x20 62#define OCOTP_WORD_OFFSET 0x20
99#define OCOTP_WORD_COUNT 0x20 63#define OCOTP_WORD_COUNT 0x20
100 64
@@ -254,15 +218,6 @@ static void __init imx28_evk_init(void)
254 mxs_saif_clkmux_select(MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR0); 218 mxs_saif_clkmux_select(MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR0);
255} 219}
256 220
257static void __init imx28_evk_post_init(void)
258{
259 if (!gpio_request_one(MX28EVK_FLEXCAN_SWITCH, GPIOF_DIR_OUT,
260 "flexcan-switch")) {
261 flexcan_pdata[0].transceiver_switch = mx28evk_flexcan0_switch;
262 flexcan_pdata[1].transceiver_switch = mx28evk_flexcan1_switch;
263 }
264}
265
266static int apx4devkit_phy_fixup(struct phy_device *phy) 221static int apx4devkit_phy_fixup(struct phy_device *phy)
267{ 222{
268 phy->dev_flags |= MICREL_PHY_50MHZ_CLK; 223 phy->dev_flags |= MICREL_PHY_50MHZ_CLK;
@@ -374,13 +329,10 @@ static void __init mxs_machine_init(void)
374 cfa10049_init(); 329 cfa10049_init();
375 330
376 of_platform_populate(NULL, of_default_bus_match_table, 331 of_platform_populate(NULL, of_default_bus_match_table,
377 mxs_auxdata_lookup, NULL); 332 NULL, NULL);
378 333
379 if (of_machine_is_compatible("karo,tx28")) 334 if (of_machine_is_compatible("karo,tx28"))
380 tx28_post_init(); 335 tx28_post_init();
381
382 if (of_machine_is_compatible("fsl,imx28-evk"))
383 imx28_evk_post_init();
384} 336}
385 337
386#define MX23_CLKCTRL_RESET_OFFSET 0x120 338#define MX23_CLKCTRL_RESET_OFFSET 0x120