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Message-ID: <20090205161319.32219d93@i1501.lan.towertech.it>
Date: Thu, 5 Feb 2009 16:13:19 +0100
From: Alessandro Zummo <alessandro.zummo@...ertech.it>
To: lkml <linux-kernel@...r.kernel.org>
Cc: rpurdie@...ys.net, Ingo Molnar <mingo@...e.hu>,
Thomas Gleixner <tglx@...utronix.de>,
"H. Peter Anvin" <hpa@...or.com>
Subject: [PATCH] Soekris net5501 board support code
Board support code for the Soekris net5501.
Signed-off-by: Alessandro Zummo <a.zummo@...ertech.it>
---
drivers/platform/x86/Kconfig | 14 ++++++
drivers/platform/x86/Makefile | 1
drivers/platform/x86/soekris.c | 92 +++++++++++++++++++++++++++++++++++++++++
3 files changed, 107 insertions(+)
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.28/drivers/platform/x86/soekris.c 2009-02-03 22:45:16.000000000 +0100
@@ -0,0 +1,92 @@
+/*
+ * Soekris board support code
+ *
+ * Copyright (C) 2008-2009 Tower Technologies
+ * Written by Alessandro Zummo <a.zummo@...ertech.it>
+ *
+ * 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/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/string.h>
+#include <linux/leds.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#include <asm/geode.h>
+
+static struct gpio_led net5501_leds[] = {
+ {
+ .name = "error",
+ .gpio = 6,
+ .default_trigger = "default-on",
+ },
+};
+
+static struct gpio_led_platform_data net5501_leds_data = {
+ .num_leds = ARRAY_SIZE(net5501_leds),
+ .leds = net5501_leds,
+};
+
+static struct platform_device net5501_leds_dev = {
+ .name = "leds-gpio",
+ .id = -1,
+ .dev.platform_data = &net5501_leds_data,
+};
+
+static void __init init_net5501(void)
+{
+ platform_device_register(&net5501_leds_dev);
+}
+
+struct soekris_board {
+ u16 offset;
+ char *sig;
+ u8 len;
+ void (*init)(void);
+};
+
+static struct soekris_board __initdata boards[] = {
+ { 0xb7b, "net5501", 7, init_net5501 }, /* net5501 v1.33/1.33c */
+ { 0xb1f, "net5501", 7, init_net5501 }, /* net5501 v1.32i */
+};
+
+static int __init soekris_init(void)
+{
+ int i;
+ unsigned char *rombase, *bios;
+
+ if (!is_geode() || geode_has_vsa2())
+ return 0;
+
+ rombase = ioremap(0xffff0000, 0xffff);
+ if (!rombase)
+ return 0;
+
+ bios = rombase + 0x20; /* null terminated */
+
+ if (strncmp(bios, "comBIOS", 7))
+ goto unmap;
+
+ for (i = 0; i < ARRAY_SIZE(boards); i++) {
+ unsigned char *model = rombase + boards[i].offset;
+
+ if (strncmp(model, boards[i].sig, boards[i].len) == 0) {
+ printk(KERN_INFO "Soekris %s: %s\n", model, bios);
+
+ if (boards[i].init)
+ boards[i].init();
+ break;
+ }
+ }
+
+unmap:
+ iounmap(rombase);
+ return 0;
+}
+
+arch_initcall(soekris_init);
--- linux-2.6.28.orig/drivers/platform/x86/Kconfig 2009-02-03 19:30:25.000000000 +0100
+++ linux-2.6.28/drivers/platform/x86/Kconfig 2009-02-03 22:39:28.000000000 +0100
@@ -395,4 +395,18 @@ config ACPI_TOSHIBA
If you have a legacy free Toshiba laptop (such as the Libretto L1
series), say Y.
+
+config SOEKRIS
+ bool "Soekris net5501 support"
+ depends on MGEODE_LX
+ select GPIOLIB
+ select GEODE_GPIO
+ select LEDS_CLASS
+ select LEDS_GPIO
+ select LEDS_TRIGGER_DEFAULT_ON
+ default n
+ help
+ Add support for the Soekris net5501 board (detection, error led
+ and GPIO).
+
endif # X86_PLATFORM_DEVICES
--- linux-2.6.28.orig/drivers/platform/x86/Makefile 2009-02-03 19:30:25.000000000 +0100
+++ linux-2.6.28/drivers/platform/x86/Makefile 2009-02-03 20:26:33.000000000 +0100
@@ -18,3 +18,4 @@ obj-$(CONFIG_INTEL_MENLOW) += intel_menl
obj-$(CONFIG_ACPI_WMI) += wmi.o
obj-$(CONFIG_ACPI_ASUS) += asus_acpi.o
obj-$(CONFIG_ACPI_TOSHIBA) += toshiba_acpi.o
+obj-$(CONFIG_SOEKRIS) += soekris.o
--
Best regards,
Alessandro Zummo,
Tower Technologies - Torino, Italy
http://www.towertech.it
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