From 809c03fe4c0f90c640b26e6a2792553b592c68f2 Mon Sep 17 00:00:00 2001
From: lars <lars@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Mon, 11 Jan 2010 04:44:45 +0000
Subject: Merge xburst target.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19098 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 .../files-2.6.32/arch/mips/jz4740/board-n526.c     | 346 +++++++++++++++++++++
 1 file changed, 346 insertions(+)
 create mode 100644 target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n526.c

(limited to 'target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n526.c')

diff --git a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n526.c b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n526.c
new file mode 100644
index 000000000..fa4627807
--- /dev/null
+++ b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n526.c
@@ -0,0 +1,346 @@
+/*
+ *  Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
+ *  	N526 eBook reader support
+ *
+ *  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.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/gpio.h>
+
+#include <asm/mach-jz4740/platform.h>
+
+#include <linux/mtd/jz4740_nand.h>
+#include <linux/jz4740_fb.h>
+#include <linux/power_supply.h>
+#include <linux/power/jz4740-battery.h>
+#include <linux/mmc/jz4740_mmc.h>
+
+#include <video/broadsheetfb.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+
+#include <linux/i2c.h>
+#include <linux/i2c-gpio.h>
+
+/* NAND */
+static struct nand_ecclayout n526_ecclayout = {
+	.eccbytes = 36,
+	.eccpos = {
+		6,  7,  8,  9,  10, 11, 12, 13,
+		14, 15, 16, 17, 18, 19, 20, 21,
+		22, 23, 24, 25, 26, 27, 28, 29,
+		30, 31, 32, 33, 34, 35, 36, 37,
+		38, 39, 40, 41},
+	.oobfree = {
+		{.offset = 2,
+		 .length = 4},
+		{.offset = 42,
+		 .length = 22}}
+};
+
+static struct mtd_partition n526_partitions[] = {
+	{ .name = "NAND BOOT partition",
+	  .offset = 0 * 0x100000,
+	  .size = 4 * 0x100000,
+ 	},
+	{ .name = "NAND KERNEL partition",
+	  .offset = 4 * 0x100000,
+	  .size = 4 * 0x100000,
+ 	},
+	{ .name = "NAND ROOTFS partition",
+	  .offset = 16 * 0x100000,
+	  .size = 498 * 0x100000,
+ 	},
+};
+
+static struct jz_nand_platform_data n526_nand_pdata = {
+	.ecc_layout = &n526_ecclayout,
+	.partitions = n526_partitions,
+	.num_partitions = ARRAY_SIZE(n526_partitions),
+	.busy_gpio = 94,
+};
+
+
+/* Battery */
+/*static struct jz_batt_info n526_battery_pdata = {
+	.dc_dect_gpio	= GPIO_DC_DETE_N,
+	.usb_dect_gpio	= GPIO_USB_DETE,
+	.charg_stat_gpio  = GPIO_CHARG_STAT_N,
+
+	.min_voltag	= 3600000,
+	.max_voltag	= 4200000,
+	.batt_tech	= POWER_SUPPLY_TECHNOLOGY_LIPO,
+};*/
+
+
+static struct jz4740_mmc_platform_data n526_mmc_pdata = {
+	.gpio_card_detect	= JZ_GPIO_PORTD(7),
+	.card_detect_active_low = 1,
+	.gpio_read_only		= -1,
+	.gpio_power		= JZ_GPIO_PORTD(17),
+	.power_active_low = 1,
+};
+
+static struct gpio_led n526_leds[] = {
+	{
+		.name = "n526:blue:power",
+		.gpio = JZ_GPIO_PORTD(28),
+		.default_state = LEDS_GPIO_DEFSTATE_ON,
+	}
+};
+
+static struct gpio_led_platform_data n526_leds_pdata = {
+	.leds = n526_leds,
+	.num_leds = ARRAY_SIZE(n526_leds),
+};
+
+static struct platform_device n526_leds_device = {
+	.name = "leds-gpio",
+	.id = -1,
+	.dev = {
+		.platform_data = &n526_leds_pdata,
+	},
+};
+
+static void __init board_gpio_setup(void)
+{
+	/* We only need to enable/disable pullup here for pins used in generic
+	 * drivers. Everything else is done by the drivers themselfs. */
+	jz_gpio_disable_pullup(JZ_GPIO_PORTD(17));
+	jz_gpio_enable_pullup(JZ_GPIO_PORTD(7));
+	jz_gpio_disable_pullup(JZ_GPIO_PORTC(19));
+	jz_gpio_disable_pullup(JZ_GPIO_PORTC(20));
+	jz_gpio_disable_pullup(JZ_GPIO_PORTC(21));
+	jz_gpio_disable_pullup(JZ_GPIO_PORTC(23));
+}
+
+
+static const int n526_eink_ctrl_gpios[] = {
+	0,
+	JZ_GPIO_PORTC(23),
+	JZ_GPIO_PORTC(19),
+	JZ_GPIO_PORTC(20),
+};
+
+static void n526_eink_set_ctl(struct broadsheetfb_par * par, unsigned char ctrl, u8
+value)
+{
+	gpio_set_value(n526_eink_ctrl_gpios[ctrl], value);
+}
+
+
+static int n526_eink_wait(struct broadsheetfb_par *par)
+{
+	int i = 0;
+	wait_event(par->waitq, gpio_get_value(JZ_GPIO_PORTB(17)));
+
+	return 0;
+}
+
+static u16 n526_eink_get_hdb(struct broadsheetfb_par *par)
+{
+	u16 value = 0;
+	jz_gpio_port_direction_input(JZ_GPIO_PORTC(0), 0xffff);
+	gpio_set_value(JZ_GPIO_PORTC(21), 0);
+	mdelay(100);
+
+	value = jz_gpio_port_get_value(JZ_GPIO_PORTC(0), 0xffff);
+
+	gpio_set_value(JZ_GPIO_PORTC(21), 1);
+	jz_gpio_port_direction_output(JZ_GPIO_PORTC(0), 0xffff);
+	return value;
+}
+
+static void n526_eink_set_hdb(struct broadsheetfb_par *par, u16 value)
+{
+	jz_gpio_port_set_value(JZ_GPIO_PORTC(0), value, 0xffff);
+}
+
+static int n526_eink_init(struct broadsheetfb_par *par)
+{
+	int i = 0;
+
+	gpio_request(JZ_GPIO_PORTD(1), "display reset?");
+	gpio_direction_output(JZ_GPIO_PORTD(1), 1);
+	mdelay(10);
+	gpio_set_value(JZ_GPIO_PORTD(1), 0);
+
+	gpio_request(JZ_GPIO_PORTB(18), "foobar");
+	gpio_direction_output(JZ_GPIO_PORTB(18), 0);
+
+	gpio_request(JZ_GPIO_PORTB(29), "foobar");
+	gpio_direction_output(JZ_GPIO_PORTB(29), 1);
+
+
+	for(i = 1; i < ARRAY_SIZE(n526_eink_ctrl_gpios); ++i) {
+		gpio_request(n526_eink_ctrl_gpios[i], "foobar");
+		gpio_direction_output(n526_eink_ctrl_gpios[i], 0);
+	}
+
+	gpio_request(JZ_GPIO_PORTC(22), "foobar");
+	gpio_direction_input(JZ_GPIO_PORTC(22));
+	gpio_request(JZ_GPIO_PORTC(21), "foobar");
+	gpio_direction_output(JZ_GPIO_PORTC(21), 1);
+
+	for(i = 0; i < 16; ++i) {
+		gpio_request(JZ_GPIO_PORTC(i), "display data");
+	}
+	jz_gpio_port_direction_output(JZ_GPIO_PORTC(0), 0xffff);
+
+	gpio_direction_output(JZ_GPIO_PORTB(18), 1);
+
+	return 0;
+}
+
+static irqreturn_t n526_eink_busy_irq(int irq, void *devid)
+{
+	struct broadsheetfb_par *par = devid;
+	wake_up(&par->waitq);
+
+	return IRQ_HANDLED;
+}
+
+static int n526_eink_setup_irq(struct fb_info *info)
+{
+	int ret;
+	struct broadsheetfb_par *par = info->par;
+
+	gpio_request(JZ_GPIO_PORTB(17), "foobar");
+	gpio_direction_input(JZ_GPIO_PORTB(17));
+
+	ret = request_irq(gpio_to_irq(JZ_GPIO_PORTB(17)), n526_eink_busy_irq,
+				IRQF_DISABLED | IRQF_TRIGGER_RISING,
+				"eInk busyline", par);
+	if (ret)
+		printk("n526 display: Failed to request busyline irq: %d\n", ret);
+	return 0;
+}
+
+static void n526_eink_cleanup(struct broadsheetfb_par *par)
+{
+}
+
+static struct broadsheet_board broadsheet_pdata = {
+	.owner = THIS_MODULE,
+	.init = n526_eink_init,
+	.wait_for_rdy = n526_eink_wait,
+	.set_ctl = n526_eink_set_ctl,
+	.set_hdb = n526_eink_set_hdb,
+	.get_hdb = n526_eink_get_hdb,
+	.cleanup = n526_eink_cleanup,
+	.setup_irq = n526_eink_setup_irq,
+};
+
+static struct platform_device n526_broadsheet_device = {
+	.name = "broadsheetfb",
+	.id = -1,
+	.dev = {
+		.platform_data = &broadsheet_pdata,
+	},
+};
+
+static struct gpio_keys_button qi_lb60_gpio_keys_buttons[] = {
+	[0] = {
+		.code		= KEY_ENTER,
+		.gpio		= 0,
+		.active_low	= 1,
+		.desc		= "Power",
+	},
+};
+
+static struct gpio_keys_platform_data qi_lb60_gpio_keys_data = {
+	.nbuttons = ARRAY_SIZE(qi_lb60_gpio_keys_buttons),
+	.buttons = qi_lb60_gpio_keys_buttons,
+};
+
+static struct platform_device qi_lb60_gpio_keys = {
+	.name =	"gpio-keys",
+	.id =	-1,
+	.dev = {
+		.platform_data = &qi_lb60_gpio_keys_data,
+	}
+};
+
+static struct i2c_gpio_platform_data n526_i2c_pdata = {
+	.sda_pin = JZ_GPIO_PORTD(23),
+	.scl_pin = JZ_GPIO_PORTD(24),
+	.udelay = 2,
+	.timeout = 3 * HZ,
+};
+
+static struct platform_device n526_i2c_device = {
+	.name = "i2c-gpio",
+	.id = -1,
+	.dev = {
+		.platform_data = &n526_i2c_pdata,
+	},
+};
+
+static struct i2c_board_info n526_i2c_board_info = {
+	.type = "n526-lpc",
+	.addr = 0x54,
+};
+
+
+static struct platform_device *jz_platform_devices[] __initdata = {
+	&jz4740_usb_ohci_device,
+	&jz4740_usb_gdt_device,
+	&jz4740_mmc_device,
+	&jz4740_nand_device,
+	&jz4740_i2s_device,
+	&jz4740_codec_device,
+	&jz4740_rtc_device,
+	&n526_leds_device,
+	&n526_broadsheet_device,
+	&qi_lb60_gpio_keys,
+	&n526_i2c_device,
+};
+
+
+static int __init n526_init_platform_devices(void)
+{
+
+	jz4740_nand_device.dev.platform_data = &n526_nand_pdata;
+/*	jz4740_battery_device.dev.platform_data = &n526_battery_pdata;*/
+	jz4740_mmc_device.dev.platform_data = &n526_mmc_pdata;
+
+	n526_i2c_board_info.irq = gpio_to_irq(JZ_GPIO_PORTD(14)),
+	i2c_register_board_info(0, &n526_i2c_board_info, 1);
+
+	return platform_add_devices(jz_platform_devices,
+					ARRAY_SIZE(jz_platform_devices));
+
+}
+
+
+extern int jz_gpiolib_init(void);
+extern int jz_init_clocks(unsigned long extal);
+
+static int __init n526_board_setup(void)
+{
+	if (jz_gpiolib_init())
+		panic("Failed to initalize jz gpio\n");
+	jz_init_clocks(12000000);
+
+	board_gpio_setup();
+
+	if (n526_init_platform_devices())
+		panic("Failed to initalize platform devices\n");
+
+	return 0;
+}
+
+arch_initcall(n526_board_setup);
-- 
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