[PATCH 10/11] ARM: imx: Add initial support of machine mx28evk

Shawn Guo shawn.guo at freescale.com
Mon Nov 15 09:36:34 EST 2010


It adds machine mx28evk with initial duart and fec
device registration.

Signed-off-by: Shawn Guo <shawn.guo at freescale.com>
---
 arch/arm/mach-imx/devices-imx28.h               |   20 ++++
 arch/arm/mach-imx/devices.c                     |   27 ++++++-
 arch/arm/mach-imx/mach-mx28evk.c                |  109 +++++++++++++++++++++++
 arch/arm/plat-mxc/devices/platform-duart.c      |   42 +++++++++
 arch/arm/plat-mxc/devices/platform-fec.c        |    5 +
 arch/arm/plat-mxc/include/mach/common.h         |    5 +
 arch/arm/plat-mxc/include/mach/devices-common.h |   11 +++
 7 files changed, 218 insertions(+), 1 deletions(-)
 create mode 100644 arch/arm/mach-imx/devices-imx28.h
 create mode 100644 arch/arm/mach-imx/mach-mx28evk.c
 create mode 100644 arch/arm/plat-mxc/devices/platform-duart.c

diff --git a/arch/arm/mach-imx/devices-imx28.h b/arch/arm/mach-imx/devices-imx28.h
new file mode 100644
index 0000000..f35c910
--- /dev/null
+++ b/arch/arm/mach-imx/devices-imx28.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2010 Pengutronix
+ * Uwe Kleine-Koenig <u.kleine-koenig at pengutronix.de>
+ *
+ * Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * 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 <mach/mx28.h>
+#include <mach/devices-common.h>
+
+extern const struct imx_duart_data imx28_duart_data __initconst;
+#define imx28_add_duart()	\
+	imx_add_duart(&imx28_duart_data)
+
+extern const struct imx_fec_data imx28_fec_data __initconst;
+#define imx28_add_fec(pdata)	\
+	imx_add_fec(&imx28_fec_data, pdata)
diff --git a/arch/arm/mach-imx/devices.c b/arch/arm/mach-imx/devices.c
index e69e46e..946db32 100644
--- a/arch/arm/mach-imx/devices.c
+++ b/arch/arm/mach-imx/devices.c
@@ -9,7 +9,7 @@
  * licensed "as is" without any warranty of any kind, whether express
  * or implied.
  *
- * Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2006-2010 Freescale Semiconductor, Inc. All Rights Reserved.
  * Copyright 2008 Juergen Beisert, kernel at pengutronix.de
  * Copyright 2008 Sascha Hauer, kernel at pengutronix.de
  * Copyright (c) 2008 Paulius Zaleckas <paulius.zaleckas at teltonika.lt>
@@ -551,3 +551,28 @@ struct platform_device imx_kpp_device = {
 };
 
 #endif
+
+#ifdef CONFIG_ARCH_MX28
+/* gpio */
+#define DEFINE_MXC_PINCTRL_GPIO_PORT(n)					\
+	{								\
+		.chip.label = "gpio-" #n,				\
+		.irq = MX28_INT_GPIO##n,				\
+		.base = MX28_IO_ADDRESS(MX28_PINCTRL_BASE_ADDR),	\
+		.virtual_irq_start = MXC_GPIO_IRQ_START + n * 32,	\
+	}
+
+static struct mxc_gpio_port imx28_gpio_ports[] = {
+	DEFINE_MXC_PINCTRL_GPIO_PORT(0),
+	DEFINE_MXC_PINCTRL_GPIO_PORT(1),
+	DEFINE_MXC_PINCTRL_GPIO_PORT(2),
+	DEFINE_MXC_PINCTRL_GPIO_PORT(3),
+	DEFINE_MXC_PINCTRL_GPIO_PORT(4),
+};
+
+int __init imx28_register_gpios(void)
+{
+	return mxc_gpio_init(imx28_gpio_ports,
+			ARRAY_SIZE(imx28_gpio_ports));
+}
+#endif
diff --git a/arch/arm/mach-imx/mach-mx28evk.c b/arch/arm/mach-imx/mach-mx28evk.c
new file mode 100644
index 0000000..d5dd940
--- /dev/null
+++ b/arch/arm/mach-imx/mach-mx28evk.c
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/irq.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+
+#include <mach/hardware.h>
+#include <mach/common.h>
+#include <mach/iomux-mx28.h>
+
+#include "devices-imx28.h"
+#include "devices.h"
+
+#define MX28EVK_FEC_PHY_POWER	(2*32 + 15)	/* GPIO_2_15 */
+#define MX28EVK_FEC_PHY_RESET	(4*32 + 13)	/* GPIO_4_13 */
+
+static iomux_pinctrl_cfg_t mx28evk_pads[] = {
+	/* DUART */
+	MX28_PAD_PWM0__DUART_RX,
+	MX28_PAD_PWM1__DUART_TX,
+
+	/* FEC */
+	MX28_PAD_ENET0_MDC__ENET0_MDC,
+	MX28_PAD_ENET0_MDIO__ENET0_MDIO,
+	MX28_PAD_ENET0_RX_EN__ENET0_RX_EN,
+	MX28_PAD_ENET0_RXD0__ENET0_RXD0,
+	MX28_PAD_ENET0_RXD1__ENET0_RXD1,
+	MX28_PAD_ENET0_TX_EN__ENET0_TX_EN,
+	MX28_PAD_ENET0_TXD0__ENET0_TXD0,
+	MX28_PAD_ENET0_TXD1__ENET0_TXD1,
+	MX28_PAD_ENET_CLK__ENET_CLK,
+	/* PHY power line */
+	MX28_PAD_SSP1_DATA3__GPIO_2_15,
+	/* PHY reset line */
+	MX28_PAD_ENET0_RX_CLK__GPIO_4_13,
+};
+
+/* FEC */
+static const struct fec_platform_data mx28_fec_pdata __initconst = {
+        .phy = PHY_INTERFACE_MODE_RMII,
+};
+
+static inline void mx28evk_fec_reset(void)
+{
+	int ret;
+
+	/* Power up FEC PHY */
+	ret = gpio_request(MX28EVK_FEC_PHY_POWER, "fec-phy-power");
+	if (ret) {
+		pr_err("Failed to request GPIO_FEC_PHY_POWER: %d\n", ret);
+		return;
+	}
+	gpio_direction_output(MX28EVK_FEC_PHY_POWER, 0);
+
+	/* Reset FEC PHY */
+	ret = gpio_request(MX28EVK_FEC_PHY_RESET, "fec-phy-reset");
+	if (ret) {
+		pr_err("Failed to request GPIO_FEC_PHY_RESET: %d\n", ret);
+		return;
+	}
+	gpio_direction_output(MX28EVK_FEC_PHY_RESET, 0);
+	mdelay(1);
+	gpio_set_value(MX28EVK_FEC_PHY_RESET, 1);
+}
+
+static void __init mx28evk_init(void)
+{
+	mxc_iomux_pinctrl_setup_multiple_pads(mx28evk_pads,
+						ARRAY_SIZE(mx28evk_pads));
+	imx28_add_duart();
+
+	mx28evk_fec_reset();
+	imx28_add_fec(&mx28_fec_pdata);
+}
+
+static void __init mx28evk_timer_init(void)
+{
+	mx28_clocks_init();
+}
+
+static struct sys_timer mx28evk_timer = {
+	.init	= mx28evk_timer_init,
+};
+
+MACHINE_START(MX28EVK, "Freescale MX28 EVK")
+	/* Maintainer: Freescale Semiconductor, Inc. */
+	.boot_params    = MX28_PHYS_OFFSET + 0x100,
+	.map_io         = mx28_map_io,
+	.init_irq       = mx28_init_irq,
+	.init_machine   = mx28evk_init,
+	.timer          = &mx28evk_timer,
+MACHINE_END
diff --git a/arch/arm/plat-mxc/devices/platform-duart.c b/arch/arm/plat-mxc/devices/platform-duart.c
new file mode 100644
index 0000000..2dbf199
--- /dev/null
+++ b/arch/arm/plat-mxc/devices/platform-duart.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2009-2010 Pengutronix
+ * Uwe Kleine-Koenig <u.kleine-koenig at pengutronix.de>
+ *
+ * Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * 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 <mach/hardware.h>
+#include <mach/devices-common.h>
+
+#define imx_duart_data_entry_single(soc)				\
+	{								\
+		.iobase = soc ## _DUART_BASE_ADDR,			\
+		.irq = soc ## _INT_DUART,				\
+	}
+
+#ifdef CONFIG_ARCH_MX28
+const struct imx_duart_data imx28_duart_data __initconst =
+	imx_duart_data_entry_single(MX28);
+#endif
+
+struct platform_device *__init imx_add_duart(
+		const struct imx_duart_data *data)
+{
+	struct resource res[] = {
+		{
+			.start = data->iobase,
+			.end = data->iobase + SZ_8K - 1,
+			.flags = IORESOURCE_MEM,
+		}, {
+			.start = data->irq,
+			.end = data->irq,
+			.flags = IORESOURCE_IRQ,
+		},
+	};
+
+	return imx_add_platform_device("imx-duart", 0, res, ARRAY_SIZE(res),
+					NULL, 0);
+}
diff --git a/arch/arm/plat-mxc/devices/platform-fec.c b/arch/arm/plat-mxc/devices/platform-fec.c
index 11d087f..bd5a84b 100644
--- a/arch/arm/plat-mxc/devices/platform-fec.c
+++ b/arch/arm/plat-mxc/devices/platform-fec.c
@@ -26,6 +26,11 @@ const struct imx_fec_data imx27_fec_data __initconst =
 	imx_fec_data_entry_single(MX27);
 #endif /* ifdef CONFIG_SOC_IMX27 */
 
+#ifdef CONFIG_ARCH_MX28
+const struct imx_fec_data imx28_fec_data __initconst =
+	imx_fec_data_entry_single(MX28);
+#endif
+
 #ifdef CONFIG_ARCH_MX35
 const struct imx_fec_data imx35_fec_data __initconst =
 	imx_fec_data_entry_single(MX35);
diff --git a/arch/arm/plat-mxc/include/mach/common.h b/arch/arm/plat-mxc/include/mach/common.h
index 05676fb..6a5dea7 100644
--- a/arch/arm/plat-mxc/include/mach/common.h
+++ b/arch/arm/plat-mxc/include/mach/common.h
@@ -18,16 +18,19 @@ extern void mx1_map_io(void);
 extern void mx21_map_io(void);
 extern void mx25_map_io(void);
 extern void mx27_map_io(void);
+extern void mx28_map_io(void);
 extern void mx31_map_io(void);
 extern void mx35_map_io(void);
 extern void mx51_map_io(void);
 extern void mxc91231_map_io(void);
 extern void mxc_init_irq(void __iomem *);
 extern void tzic_init_irq(void __iomem *);
+extern void icoll_init_irq(void __iomem *);
 extern void mx1_init_irq(void);
 extern void mx21_init_irq(void);
 extern void mx25_init_irq(void);
 extern void mx27_init_irq(void);
+extern void mx28_init_irq(void);
 extern void mx31_init_irq(void);
 extern void mx35_init_irq(void);
 extern void mx51_init_irq(void);
@@ -38,6 +41,7 @@ extern int mx1_clocks_init(unsigned long fref);
 extern int mx21_clocks_init(unsigned long lref, unsigned long fref);
 extern int mx25_clocks_init(void);
 extern int mx27_clocks_init(unsigned long fref);
+extern int mx28_clocks_init(void);
 extern int mx31_clocks_init(unsigned long fref);
 extern int mx35_clocks_init(void);
 extern int mx51_clocks_init(unsigned long ckil, unsigned long osc,
@@ -51,4 +55,5 @@ extern void mxc91231_power_off(void);
 extern void mxc91231_arch_reset(int, const char *);
 extern void mxc91231_prepare_idle(void);
 extern void mx51_efikamx_reset(void);
+extern int mxc_reset_block(void __iomem *);
 #endif
diff --git a/arch/arm/plat-mxc/include/mach/devices-common.h b/arch/arm/plat-mxc/include/mach/devices-common.h
index 8c6896f..501329d 100644
--- a/arch/arm/plat-mxc/include/mach/devices-common.h
+++ b/arch/arm/plat-mxc/include/mach/devices-common.h
@@ -2,6 +2,8 @@
  * Copyright (C) 2009-2010 Pengutronix
  * Uwe Kleine-Koenig <u.kleine-koenig at pengutronix.de>
  *
+ * Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
  * 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.
@@ -82,6 +84,15 @@ struct platform_device *__init imx_add_imx_uart_1irq(
 		const struct imx_imx_uart_1irq_data *data,
 		const struct imxuart_platform_data *pdata);
 
+struct imx_duart_data {
+	int id;
+	resource_size_t iobase;
+	resource_size_t iosize;
+	resource_size_t irq;
+};
+struct platform_device *__init imx_add_duart(
+		const struct imx_duart_data *data);
+
 #include <mach/mxc_nand.h>
 struct imx_mxc_nand_data {
 	/*
-- 
1.7.1





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