MIPS: Lantiq: Add platform device support

This patch adds the wrappers for registering our platform devices.

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Ralph Hempel <ralph.hempel@lantiq.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2254/
Patchwork: https://patchwork.linux-mips.org/patch/2360/
Patchwork: https://patchwork.linux-mips.org/patch/2359/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

3 files changed, 117 insertions, 1 deletions

diff --git a/arch/mips/lantiq/xway/Makefile b/arch/mips/lantiq/xway/Makefile
index 9c85ff9184c..74ce438ad8e 100644
--- a/arch/mips/lantiq/xway/Makefile
+++ b/arch/mips/lantiq/xway/Makefile
@@ -1,4 +1,4 @@
-obj-y := pmu.o ebu.o reset.o gpio.o
+obj-y := pmu.o ebu.o reset.o gpio.o devices.o
 
 obj-$(CONFIG_SOC_XWAY) += clk-xway.o prom-xway.o
 obj-$(CONFIG_SOC_AMAZON_SE) += clk-ase.o prom-ase.o
diff --git a/arch/mips/lantiq/xway/devices.c b/arch/mips/lantiq/xway/devices.c
new file mode 100644
index 00000000000..a71b3b532a0
--- /dev/null
+++ b/arch/mips/lantiq/xway/devices.c
@@ -0,0 +1,98 @@
+/*
+ *  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.
+ *
+ *  Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/mtd/physmap.h>
+#include <linux/kernel.h>
+#include <linux/reboot.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/etherdevice.h>
+#include <linux/reboot.h>
+#include <linux/time.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+#include <linux/leds.h>
+
+#include <asm/bootinfo.h>
+#include <asm/irq.h>
+
+#include <lantiq_soc.h>
+#include <lantiq_irq.h>
+#include <lantiq_platform.h>
+
+#include "devices.h"
+
+/* gpio */
+static struct resource ltq_gpio_resource[] = {
+	{
+		.name	= "gpio0",
+		.start  = LTQ_GPIO0_BASE_ADDR,
+		.end    = LTQ_GPIO0_BASE_ADDR + LTQ_GPIO_SIZE - 1,
+		.flags  = IORESOURCE_MEM,
+	}, {
+		.name	= "gpio1",
+		.start  = LTQ_GPIO1_BASE_ADDR,
+		.end    = LTQ_GPIO1_BASE_ADDR + LTQ_GPIO_SIZE - 1,
+		.flags  = IORESOURCE_MEM,
+	}, {
+		.name	= "gpio2",
+		.start  = LTQ_GPIO2_BASE_ADDR,
+		.end    = LTQ_GPIO2_BASE_ADDR + LTQ_GPIO_SIZE - 1,
+		.flags  = IORESOURCE_MEM,
+	}
+};
+
+void __init ltq_register_gpio(void)
+{
+	platform_device_register_simple("ltq_gpio", 0,
+		&ltq_gpio_resource[0], 1);
+	platform_device_register_simple("ltq_gpio", 1,
+		&ltq_gpio_resource[1], 1);
+
+	/* AR9 and VR9 have an extra gpio block */
+	if (ltq_is_ar9() || ltq_is_vr9()) {
+		platform_device_register_simple("ltq_gpio", 2,
+			&ltq_gpio_resource[2], 1);
+	}
+}
+
+/* serial to parallel conversion */
+static struct resource ltq_stp_resource = {
+	.name   = "stp",
+	.start  = LTQ_STP_BASE_ADDR,
+	.end    = LTQ_STP_BASE_ADDR + LTQ_STP_SIZE - 1,
+	.flags  = IORESOURCE_MEM,
+};
+
+void __init ltq_register_gpio_stp(void)
+{
+	platform_device_register_simple("ltq_stp", 0, &ltq_stp_resource, 1);
+}
+
+/* asc ports - amazon se has its own serial mapping */
+static struct resource ltq_ase_asc_resources[] = {
+	{
+		.name	= "asc0",
+		.start  = LTQ_ASC1_BASE_ADDR,
+		.end    = LTQ_ASC1_BASE_ADDR + LTQ_ASC_SIZE - 1,
+		.flags  = IORESOURCE_MEM,
+	},
+	IRQ_RES(tx, LTQ_ASC_ASE_TIR),
+	IRQ_RES(rx, LTQ_ASC_ASE_RIR),
+	IRQ_RES(err, LTQ_ASC_ASE_EIR),
+};
+
+void __init ltq_register_ase_asc(void)
+{
+	platform_device_register_simple("ltq_asc", 0,
+		ltq_ase_asc_resources, ARRAY_SIZE(ltq_ase_asc_resources));
+}
diff --git a/arch/mips/lantiq/xway/devices.h b/arch/mips/lantiq/xway/devices.h
new file mode 100644
index 00000000000..51f56b5a9fb
--- /dev/null
+++ b/arch/mips/lantiq/xway/devices.h
@@ -0,0 +1,18 @@
+/*
+ *  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.
+ *
+ *  Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ */
+
+#ifndef _LTQ_DEVICES_XWAY_H__
+#define _LTQ_DEVICES_XWAY_H__
+
+#include "../devices.h"
+
+extern void ltq_register_gpio(void);
+extern void ltq_register_gpio_stp(void);
+extern void ltq_register_ase_asc(void);
+
+#endif