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authorJohn Crispin <blogic@openwrt.org>2011-03-30 09:27:53 +0200
committerRalf Baechle <ralf@linux-mips.org>2011-05-19 09:55:42 +0100
commit24aff71fa8df0d6a73dab17f3f2285a24b8f658f (patch)
tree09478aa08ac393279c7830a2d1134385ac19bf52
parent3c5447390c3e1a462913e327a016a55cae501580 (diff)
downloadlinux-24aff71fa8df0d6a73dab17f3f2285a24b8f658f.tar.bz2
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>
-rw-r--r--arch/mips/lantiq/Makefile2
-rw-r--r--arch/mips/lantiq/devices.c122
-rw-r--r--arch/mips/lantiq/devices.h23
-rw-r--r--arch/mips/lantiq/xway/Makefile2
-rw-r--r--arch/mips/lantiq/xway/devices.c98
-rw-r--r--arch/mips/lantiq/xway/devices.h18
6 files changed, 263 insertions, 2 deletions
diff --git a/arch/mips/lantiq/Makefile b/arch/mips/lantiq/Makefile
index a268391eb45e..e5dae0e24b00 100644
--- a/arch/mips/lantiq/Makefile
+++ b/arch/mips/lantiq/Makefile
@@ -4,7 +4,7 @@
# under the terms of the GNU General Public License version 2 as published
# by the Free Software Foundation.
-obj-y := irq.o setup.o clk.o prom.o
+obj-y := irq.o setup.o clk.o prom.o devices.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
diff --git a/arch/mips/lantiq/devices.c b/arch/mips/lantiq/devices.c
new file mode 100644
index 000000000000..7b82c34cb169
--- /dev/null
+++ b/arch/mips/lantiq/devices.c
@@ -0,0 +1,122 @@
+/*
+ * 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/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 "devices.h"
+
+/* nor flash */
+static struct resource ltq_nor_resource = {
+ .name = "nor",
+ .start = LTQ_FLASH_START,
+ .end = LTQ_FLASH_START + LTQ_FLASH_MAX - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device ltq_nor = {
+ .name = "ltq_nor",
+ .resource = &ltq_nor_resource,
+ .num_resources = 1,
+};
+
+void __init ltq_register_nor(struct physmap_flash_data *data)
+{
+ ltq_nor.dev.platform_data = data;
+ platform_device_register(&ltq_nor);
+}
+
+/* watchdog */
+static struct resource ltq_wdt_resource = {
+ .name = "watchdog",
+ .start = LTQ_WDT_BASE_ADDR,
+ .end = LTQ_WDT_BASE_ADDR + LTQ_WDT_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+void __init ltq_register_wdt(void)
+{
+ platform_device_register_simple("ltq_wdt", 0, &ltq_wdt_resource, 1);
+}
+
+/* asc ports */
+static struct resource ltq_asc0_resources[] = {
+ {
+ .name = "asc0",
+ .start = LTQ_ASC0_BASE_ADDR,
+ .end = LTQ_ASC0_BASE_ADDR + LTQ_ASC_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ IRQ_RES(tx, LTQ_ASC_TIR(0)),
+ IRQ_RES(rx, LTQ_ASC_RIR(0)),
+ IRQ_RES(err, LTQ_ASC_EIR(0)),
+};
+
+static struct resource ltq_asc1_resources[] = {
+ {
+ .name = "asc1",
+ .start = LTQ_ASC1_BASE_ADDR,
+ .end = LTQ_ASC1_BASE_ADDR + LTQ_ASC_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ IRQ_RES(tx, LTQ_ASC_TIR(1)),
+ IRQ_RES(rx, LTQ_ASC_RIR(1)),
+ IRQ_RES(err, LTQ_ASC_EIR(1)),
+};
+
+void __init ltq_register_asc(int port)
+{
+ switch (port) {
+ case 0:
+ platform_device_register_simple("ltq_asc", 0,
+ ltq_asc0_resources, ARRAY_SIZE(ltq_asc0_resources));
+ break;
+ case 1:
+ platform_device_register_simple("ltq_asc", 1,
+ ltq_asc1_resources, ARRAY_SIZE(ltq_asc1_resources));
+ break;
+ default:
+ break;
+ }
+}
+
+#ifdef CONFIG_PCI
+/* pci */
+static struct platform_device ltq_pci = {
+ .name = "ltq_pci",
+ .num_resources = 0,
+};
+
+void __init ltq_register_pci(struct ltq_pci_data *data)
+{
+ ltq_pci.dev.platform_data = data;
+ platform_device_register(&ltq_pci);
+}
+#else
+void __init ltq_register_pci(struct ltq_pci_data *data)
+{
+ pr_err("kernel is compiled without PCI support\n");
+}
+#endif
diff --git a/arch/mips/lantiq/devices.h b/arch/mips/lantiq/devices.h
new file mode 100644
index 000000000000..2947bb19a528
--- /dev/null
+++ b/arch/mips/lantiq/devices.h
@@ -0,0 +1,23 @@
+/*
+ * 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_H__
+#define _LTQ_DEVICES_H__
+
+#include <lantiq_platform.h>
+#include <linux/mtd/physmap.h>
+
+#define IRQ_RES(resname, irq) \
+ {.name = #resname, .start = (irq), .flags = IORESOURCE_IRQ}
+
+extern void ltq_register_nor(struct physmap_flash_data *data);
+extern void ltq_register_wdt(void);
+extern void ltq_register_asc(int port);
+extern void ltq_register_pci(struct ltq_pci_data *data);
+
+#endif
diff --git a/arch/mips/lantiq/xway/Makefile b/arch/mips/lantiq/xway/Makefile
index 9c85ff9184c6..74ce438ad8e7 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 000000000000..a71b3b532a01
--- /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 000000000000..51f56b5a9fbd
--- /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