[xburst] Add 2.6.37 support

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24914 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 663 insertions, 0 deletions

diff --git a/target/linux/xburst/patches-2.6.37/006-add-n516-board-support.patch b/target/linux/xburst/patches-2.6.37/006-add-n516-board-support.patch
new file mode 100644
index 0000000000..c875f13e17
--- /dev/null
+++ b/target/linux/xburst/patches-2.6.37/006-add-n516-board-support.patch
@@ -0,0 +1,663 @@
+From fc2b1daf842a1b98472699fdddc8c12ce344bbd7 Mon Sep 17 00:00:00 2001
+From: Lars-Peter Clausen <lars@metafoo.de>
+Date: Sat, 24 Apr 2010 17:25:01 +0200
+Subject: [PATCH 06/23] Add n516 board support
+
+---
+ arch/mips/include/asm/mach-jz4740/board-n516.h |   39 +++
+ arch/mips/jz4740/Kconfig                       |    4 +
+ arch/mips/jz4740/Makefile                      |    1 +
+ arch/mips/jz4740/board-n516-display.c          |  394 ++++++++++++++++++++++++
+ arch/mips/jz4740/board-n516.c                  |  182 +++++++++++
+ 5 files changed, 620 insertions(+), 0 deletions(-)
+ create mode 100644 arch/mips/include/asm/mach-jz4740/board-n516.h
+ create mode 100644 arch/mips/jz4740/board-n516-display.c
+ create mode 100644 arch/mips/jz4740/board-n516.c
+
+--- /dev/null
++++ b/arch/mips/include/asm/mach-jz4740/board-n516.h
+@@ -0,0 +1,39 @@
++/*
++ *  linux/include/asm-mips/mach-jz4740/board-n516.h
++ *
++ *  JZ4730-based N516 board definition.
++ *
++ *  Copyright (C) 2009, Yauhen Kharuzhy <jekhor@gmail.com>
++ *
++ * 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.
++ */
++
++#ifndef __ASM_JZ4740_N516_H__
++#define __ASM_JZ4740_N516_H__
++
++#include <asm/mach-jz4740/gpio.h>
++
++/*
++ * GPIO
++ */
++#define GPIO_SD_VCC_EN_N	JZ_GPIO_PORTD(17)
++#define GPIO_SD_CD_N		JZ_GPIO_PORTD(7)
++#define GPIO_SD_WP		JZ_GPIO_PORTD(15)
++#define GPIO_USB_DETECT		JZ_GPIO_PORTD(19)
++#define GPIO_CHARG_STAT_N	JZ_GPIO_PORTD(16)
++#define GPIO_LED_ENABLE		JZ_GPIO_PORTD(28)
++#define GPIO_LPC_INT		JZ_GPIO_PORTD(14)
++#define GPIO_HPHONE_DETECT	JZ_GPIO_PORTD(20)
++#define GPIO_SPEAKER_ENABLE	JZ_GPIO_PORTD(21)
++
++/* Display */
++#define GPIO_DISPLAY_RST_L	JZ_GPIO_PORTB(18)
++#define GPIO_DISPLAY_RDY	JZ_GPIO_PORTB(17)
++#define GPIO_DISPLAY_STBY	JZ_GPIO_PORTC(22)
++#define GPIO_DISPLAY_ERR	JZ_GPIO_PORTC(23)
++#define GPIO_DISPLAY_OFF_N	JZ_GPIO_PORTD(1)
++
++#endif /* __ASM_JZ4740_N516_H__ */
+--- a/arch/mips/jz4740/Kconfig
++++ b/arch/mips/jz4740/Kconfig
+@@ -6,6 +6,10 @@ choice
+ config JZ4740_QI_LB60
+ 	bool "Qi Hardware Ben NanoNote"
+ 
++config JZ4740_N516
++	bool "Hanvon n516 eBook reader"
++	select SOC_JZ4740
++
+ endchoice
+ 
+ config HAVE_PWM
+--- a/arch/mips/jz4740/Makefile
++++ b/arch/mips/jz4740/Makefile
+@@ -12,6 +12,7 @@ obj-$(CONFIG_DEBUG_FS) += clock-debugfs.
+ # board specific support
+ 
+ obj-$(CONFIG_JZ4740_QI_LB60)	+= board-qi_lb60.o
++obj-$(CONFIG_JZ4740_N516)	+= board-n516.o board-n516-display.o
+ 
+ # PM support
+ 
+--- /dev/null
++++ b/arch/mips/jz4740/board-n516-display.c
+@@ -0,0 +1,394 @@
++/*
++ * board-n516-display.c -- Platform device for N516 display
++ *
++ * Copyright (C) 2009, Yauhen Kharuzhy <jekhor@gmail.com>
++ *
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License. See the file COPYING in the main directory of this archive for
++ * more details.
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/errno.h>
++#include <linux/string.h>
++#include <linux/delay.h>
++#include <linux/interrupt.h>
++#include <linux/fb.h>
++#include <linux/init.h>
++#include <linux/platform_device.h>
++#include <linux/irq.h>
++#include <linux/gpio.h>
++
++#include <asm/mach-jz4740/jz4740_fb.h>
++
++#include <asm/mach-jz4740/platform.h>
++#include <asm/mach-jz4740/board-n516.h>
++
++#include <video/metronomefb.h>
++#include <linux/console.h>
++
++static struct fb_videomode n516_fb_modes[] = {
++	[0] = {
++		.name		= "Metronome 800x600",
++		.refresh	= 50,
++		.xres		= 400,
++		.yres		= 624,
++		.hsync_len	= 31,
++		.vsync_len	= 23,
++		.right_margin	= 31,
++		.left_margin	= 5,
++		.upper_margin	= 1,
++		.lower_margin	= 2,
++		.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
++	},
++};
++
++static struct jz4740_fb_platform_data n516_fb_pdata = {
++	.num_modes	= ARRAY_SIZE(n516_fb_modes),
++	.modes		= n516_fb_modes,
++	.bpp		= 16,
++	.lcd_type	= JZ_LCD_TYPE_GENERIC_16_BIT,
++};
++
++struct n516_board_info {
++	uint8_t *metromem;
++	size_t wfm_size;
++	struct fb_info *host_fbinfo; /* the host LCD controller's fbi */
++	unsigned int fw;
++	unsigned int fh;
++};
++
++static struct platform_device *n516_device;
++static struct n516_board_info n516_board_info;
++
++static int metronome_gpios[] = {
++	GPIO_DISPLAY_STBY,
++	GPIO_DISPLAY_RST_L,
++	GPIO_DISPLAY_RDY,
++	GPIO_DISPLAY_ERR,
++/*	GPIO_DISPLAY_OFF_N,*/
++};
++
++static const char *metronome_gpio_names[] = {
++	"Metronome STDBY",
++	"Metronome RST",
++	"Metronome RDY",
++	"Metronome ERR",
++/*	"Metronone OFF",*/
++};
++
++static int n516_enable_hostfb(bool enable)
++{
++	int ret;
++	int blank = enable ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
++
++	acquire_console_sem();
++	ret = fb_blank(n516_board_info.host_fbinfo, blank);
++	release_console_sem();
++
++	return ret;
++}
++
++static int n516_init_metronome_gpios(struct metronomefb_par *par)
++{
++	int i;
++	int ret;
++
++	for (i = 0; i < ARRAY_SIZE(metronome_gpios); ++i) {
++		ret = gpio_request(metronome_gpios[i], metronome_gpio_names[i]);
++		if (ret)
++			goto err;
++	}
++
++	gpio_direction_output(GPIO_DISPLAY_OFF_N, 0);
++	gpio_direction_output(GPIO_DISPLAY_RST_L, 0);
++	gpio_direction_output(GPIO_DISPLAY_STBY, 0);
++	gpio_direction_input(GPIO_DISPLAY_RDY);
++	gpio_direction_input(GPIO_DISPLAY_ERR);
++
++	return 0;
++err:
++	for (--i; i >= 0; --i)
++		gpio_free(metronome_gpios[i]);
++
++	return ret;
++}
++
++static int n516_share_video_mem(struct fb_info *info)
++{
++	int ret;
++
++	dev_dbg(&n516_device->dev, "ENTER %s\n", __func__);
++	dev_dbg(&n516_device->dev, "%s, info->var.xres = %u, info->var.yres = %u\n", __func__, info->var.xres, info->var.yres);
++	/* rough check if this is our desired fb and not something else */
++	if ((info->var.xres != n516_fb_pdata.modes[0].xres)
++		|| (info->var.yres != n516_fb_pdata.modes[0].yres))
++		return 0;
++
++	/* we've now been notified that we have our new fb */
++	n516_board_info.metromem = info->screen_base;
++	n516_board_info.host_fbinfo = info;
++
++	n516_enable_hostfb(false);
++	/* try to refcount host drv since we are the consumer after this */
++	if (!try_module_get(info->fbops->owner))
++		return -ENODEV;
++
++	/* this _add binds metronomefb to n516. metronomefb refcounts n516 */
++	ret = platform_device_add(n516_device);
++
++	if (ret) {
++		platform_device_put(n516_device);
++		return ret;
++	}
++
++	/* request our platform independent driver */
++	request_module("metronomefb");
++
++	return 0;
++}
++
++static int n516_unshare_video_mem(struct fb_info *info)
++{
++	dev_dbg(&n516_device->dev, "ENTER %s\n", __func__);
++
++	if (info != n516_board_info.host_fbinfo)
++		return 0;
++
++	module_put(n516_board_info.host_fbinfo->fbops->owner);
++	return 0;
++}
++
++static int n516_fb_notifier_callback(struct notifier_block *self,
++				 unsigned long event, void *data)
++{
++	struct fb_event *evdata = data;
++	struct fb_info *info = evdata->info;
++
++	dev_dbg(&n516_device->dev, "ENTER %s\n", __func__);
++
++	if (event == FB_EVENT_FB_REGISTERED)
++		return n516_share_video_mem(info);
++	else if (event == FB_EVENT_FB_UNREGISTERED)
++		return n516_unshare_video_mem(info);
++
++	return 0;
++}
++
++static struct notifier_block n516_fb_notif = {
++	.notifier_call = n516_fb_notifier_callback,
++};
++
++/* this gets called as part of our init. these steps must be done now so
++ * that we can use set_pxa_fb_info */
++static void __init n516_presetup_fb(void)
++{
++	int padding_size;
++	int totalsize;
++
++	/* the frame buffer is divided as follows:
++	command | CRC | padding
++	16kb waveform data | CRC | padding
++	image data | CRC
++	*/
++
++	n516_board_info.fw = 800;
++	n516_board_info.fh = 624;
++
++	/* waveform must be 16k + 2 for checksum */
++	n516_board_info.wfm_size = roundup(16*1024 + 2, n516_board_info.fw);
++
++	padding_size = PAGE_SIZE + (4 * n516_board_info.fw);
++
++	/* total is 1 cmd , 1 wfm, padding and image */
++	totalsize = n516_board_info.fw + n516_board_info.wfm_size;
++	totalsize += padding_size + (n516_board_info.fw*n516_board_info.fh);
++
++	/* save this off because we're manipulating fw after this and
++	 * we'll need it when we're ready to setup the framebuffer */
++
++	/* the reason we do this adjustment is because we want to acquire
++	 * more framebuffer memory without imposing custom awareness on the
++	 * underlying driver */
++	n516_fb_pdata.modes[0].yres = DIV_ROUND_UP(totalsize, n516_board_info.fw);
++
++	jz4740_framebuffer_device.dev.platform_data = &n516_fb_pdata;
++	platform_device_register(&jz4740_framebuffer_device);
++}
++
++/* this gets called by metronomefb as part of its init, in our case, we
++ * have already completed initial framebuffer init in presetup_fb so we
++ * can just setup the fb access pointers */
++static int n516_setup_fb(struct metronomefb_par *par)
++{
++	/* metromem was set up by the notifier in share_video_mem so now
++	 * we can use its value to calculate the other entries */
++	par->metromem_cmd = (struct metromem_cmd *) n516_board_info.metromem;
++	par->metromem_wfm = n516_board_info.metromem + n516_board_info.fw;
++	par->metromem_img = par->metromem_wfm + n516_board_info.wfm_size;
++	par->metromem_img_csum = (u16 *) (par->metromem_img + (n516_board_info.fw * n516_board_info.fh));
++	par->metromem_dma = n516_board_info.host_fbinfo->fix.smem_start;
++
++	return 0;
++}
++
++static int n516_get_panel_type(void)
++{
++	return 5;
++}
++
++static irqreturn_t n516_handle_irq(int irq, void *dev_id)
++{
++	struct metronomefb_par *par = dev_id;
++
++	dev_dbg(&par->pdev->dev, "Metronome IRQ! RDY=%d\n", 	gpio_get_value(GPIO_DISPLAY_RDY));
++	wake_up_all(&par->waitq);
++
++	return IRQ_HANDLED;
++}
++
++static void n516_power_ctl(struct metronomefb_par *par, int cmd)
++{
++	switch (cmd) {
++	case METRONOME_POWER_OFF:
++		gpio_set_value(GPIO_DISPLAY_OFF_N, 1);
++		n516_enable_hostfb(false);
++		break;
++	case METRONOME_POWER_ON:
++		gpio_set_value(GPIO_DISPLAY_OFF_N, 0);
++		n516_enable_hostfb(true);
++		break;
++	}
++}
++
++static int n516_get_rdy(struct metronomefb_par *par)
++{
++	return gpio_get_value(GPIO_DISPLAY_RDY);
++}
++
++static int n516_get_err(struct metronomefb_par *par)
++{
++	return gpio_get_value(GPIO_DISPLAY_ERR);
++}
++
++static int n516_setup_irq(struct fb_info *info)
++{
++	int ret;
++
++	dev_dbg(&n516_device->dev, "ENTER %s\n", __func__);
++
++	ret = request_irq(gpio_to_irq(GPIO_DISPLAY_RDY), n516_handle_irq,
++				IRQF_TRIGGER_RISING,
++				"n516", info->par);
++	if (ret)
++		dev_err(&n516_device->dev, "request_irq failed: %d\n", ret);
++
++	return ret;
++}
++
++static void n516_set_rst(struct metronomefb_par *par, int state)
++{
++	dev_dbg(&n516_device->dev, "ENTER %s, RDY=%d\n", __func__, gpio_get_value(GPIO_DISPLAY_RDY));
++	if (state)
++		gpio_set_value(GPIO_DISPLAY_RST_L, 1);
++	else
++		gpio_set_value(GPIO_DISPLAY_RST_L, 0);
++}
++
++static void n516_set_stdby(struct metronomefb_par *par, int state)
++{
++	dev_dbg(&n516_device->dev, "ENTER %s, RDY=%d\n", __func__, gpio_get_value(GPIO_DISPLAY_RDY));
++	if (state)
++		gpio_set_value(GPIO_DISPLAY_STBY, 1);
++	else
++		gpio_set_value(GPIO_DISPLAY_STBY, 0);
++}
++
++static int n516_wait_event(struct metronomefb_par *par)
++{
++	unsigned long timeout = jiffies + HZ / 20;
++
++	dev_dbg(&n516_device->dev, "ENTER1 %s, RDY=%d\n",
++			__func__, gpio_get_value(GPIO_DISPLAY_RDY));
++	while (n516_get_rdy(par) && time_before(jiffies, timeout))
++		schedule();
++
++	dev_dbg(&n516_device->dev, "ENTER2 %s, RDY=%d\n",
++			__func__, gpio_get_value(GPIO_DISPLAY_RDY));
++	return wait_event_timeout(par->waitq,
++			n516_get_rdy(par), HZ * 2) ? 0 : -EIO;
++}
++
++static int n516_wait_event_intr(struct metronomefb_par *par)
++{
++	unsigned long timeout = jiffies + HZ/20;
++
++	dev_dbg(&n516_device->dev, "ENTER1 %s, RDY=%d\n",
++			__func__, gpio_get_value(GPIO_DISPLAY_RDY));
++	while (n516_get_rdy(par) && time_before(jiffies, timeout))
++		schedule();
++
++	dev_dbg(&n516_device->dev, "ENTER2 %s, RDY=%d\n",
++			__func__, gpio_get_value(GPIO_DISPLAY_RDY));
++	return wait_event_interruptible_timeout(par->waitq,
++					n516_get_rdy(par), HZ * 2) ? 0 : -EIO;
++}
++
++static void n516_cleanup(struct metronomefb_par *par)
++{
++	int i;
++
++	free_irq(gpio_to_irq(GPIO_DISPLAY_RDY), par);
++	for (i = 0; i < ARRAY_SIZE(metronome_gpios); ++i)
++		gpio_free(metronome_gpios[i]);
++}
++
++static struct metronome_board n516_board __initdata = {
++	.owner			= THIS_MODULE,
++	.power_ctl		= n516_power_ctl,
++	.setup_irq		= n516_setup_irq,
++	.setup_io		= n516_init_metronome_gpios,
++	.setup_fb		= n516_setup_fb,
++	.set_rst		= n516_set_rst,
++	.get_err		= n516_get_err,
++	.get_rdy		= n516_get_rdy,
++	.set_stdby		= n516_set_stdby,
++	.met_wait_event		= n516_wait_event,
++	.met_wait_event_intr	= n516_wait_event_intr,
++	.get_panel_type		= n516_get_panel_type,
++	.cleanup		= n516_cleanup,
++};
++
++static int __init n516_init(void)
++{
++	int ret;
++
++	/* Keep the metronome off, until its driver is loaded */
++	ret = gpio_request(GPIO_DISPLAY_OFF_N, "Display off");
++	if (ret)
++		return ret;
++
++	gpio_direction_output(GPIO_DISPLAY_OFF_N, 1);
++
++	/* before anything else, we request notification for any fb
++	 * creation events */
++	fb_register_client(&n516_fb_notif);
++
++	n516_device = platform_device_alloc("metronomefb", -1);
++	if (!n516_device)
++		return -ENOMEM;
++
++	/* the n516_board that will be seen by metronomefb is a copy */
++	platform_device_add_data(n516_device, &n516_board,
++					sizeof(n516_board));
++
++	n516_presetup_fb();
++
++	return 0;
++}
++module_init(n516_init);
++
++MODULE_DESCRIPTION("board driver for n516 display");
++MODULE_AUTHOR("Yauhen Kharuzhy");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/arch/mips/jz4740/board-n516.c
+@@ -0,0 +1,182 @@
++/*
++ * linux/arch/mips/jz4740/board-516.c
++ *
++ * JZ4740 n516 board setup routines.
++ *
++ * Copyright (c) 2009, Yauhen Kharuzhy <jekhor@gmail.com>
++ *
++ * 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.
++ */
++
++#include <linux/init.h>
++#include <linux/sched.h>
++#include <linux/ioport.h>
++#include <linux/mm.h>
++#include <linux/console.h>
++#include <linux/delay.h>
++#include <linux/i2c.h>
++#include <linux/platform_device.h>
++#include <linux/mtd/mtd.h>
++#include <linux/leds.h>
++
++#include <linux/power_supply.h>
++#include <linux/power/gpio-charger.h>
++
++#include <linux/i2c.h>
++
++#include <asm/mach-jz4740/jz4740_mmc.h>
++#include <asm/mach-jz4740/jz4740_nand.h>
++
++#include <asm/mach-jz4740/board-n516.h>
++#include <asm/mach-jz4740/platform.h>
++
++#include "clock.h"
++
++static long n516_panic_blink(int state)
++{
++	gpio_set_value(GPIO_LED_ENABLE, state ? 1 : 0);
++	return 0;
++}
++
++static void __init board_gpio_setup(void)
++{
++/*	jz_gpio_enable_pullup(JZ_GPIO_PORTD(23));
++	jz_gpio_enable_pullup(JZ_GPIO_PORTD(24));*/
++}
++
++static const struct i2c_board_info n516_i2c_board_info[] = {
++	{
++		.type		= "LPC524",
++		.addr		= 0x54,
++	},
++	{
++		.type		= "lm75a",
++		.addr		= 0x48,
++	}
++};
++
++static struct jz4740_mmc_platform_data n516_mmc_pdata = {
++	.gpio_card_detect	= GPIO_SD_CD_N,
++	.card_detect_active_low = 1,
++	.gpio_read_only		= -1,
++	.gpio_power		= GPIO_SD_VCC_EN_N,
++	.power_active_low = 1,
++};
++
++static struct gpio_led n516_leds[] = {
++	{
++		.name = "n516:blue:power",
++		.gpio = GPIO_LED_ENABLE,
++		.default_state = LEDS_GPIO_DEFSTATE_ON,
++		.default_trigger = "nand-disk",
++	}
++};
++
++static struct gpio_led_platform_data n516_leds_pdata = {
++	.leds = n516_leds,
++	.num_leds = ARRAY_SIZE(n516_leds),
++};
++
++static struct platform_device n516_leds_device = {
++	.name = "leds-gpio",
++	.id = -1,
++	.dev = {
++		.platform_data = &n516_leds_pdata,
++	},
++};
++
++static struct mtd_partition n516_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 = 8 * 0x100000,
++	  .size = 504 * 0x100000,
++ 	},
++};
++
++static struct nand_ecclayout n516_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 jz_nand_platform_data n516_nand_pdata = {
++	.ecc_layout = &n516_ecclayout,
++	.partitions = n516_partitions,
++	.num_partitions = ARRAY_SIZE(n516_partitions),
++	.busy_gpio = 94,
++};
++
++static char *n516_batteries[] = {
++	"n516_battery",
++};
++
++static struct gpio_charger_platform_data n516_charger_pdata = {
++	.name = "usb",
++	.type = POWER_SUPPLY_TYPE_USB,
++	.gpio = GPIO_USB_DETECT,
++	.gpio_active_low = 1,
++	.batteries = n516_batteries,
++	.num_batteries = ARRAY_SIZE(n516_batteries),
++};
++
++static struct platform_device n516_charger_device = {
++	.name = "gpio-charger",
++	.dev = {
++		.platform_data = &n516_charger_pdata,
++	},
++};
++
++static struct platform_device *n516_devices[] __initdata = {
++	&jz4740_nand_device,
++	&n516_leds_device,
++	&jz4740_mmc_device,
++	&jz4740_i2s_device,
++	&jz4740_codec_device,
++	&jz4740_rtc_device,
++	&jz4740_udc_device,
++	&jz4740_i2c_device,
++	&n516_charger_device,
++};
++
++struct jz4740_clock_board_data jz4740_clock_bdata = {
++	.ext_rate = 12000000,
++	.rtc_rate = 32768,
++};
++
++static int n516_setup_platform(void)
++{
++	jz4740_serial_device_register();
++	board_gpio_setup();
++
++	panic_blink = n516_panic_blink;
++	i2c_register_board_info(0, n516_i2c_board_info, ARRAY_SIZE(n516_i2c_board_info));
++	jz4740_mmc_device.dev.platform_data = &n516_mmc_pdata;
++	jz4740_nand_device.dev.platform_data = &n516_nand_pdata;
++
++	return platform_add_devices(n516_devices, ARRAY_SIZE(n516_devices));
++}
++arch_initcall(n516_setup_platform);