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-rw-r--r--target/linux/xburst/patches-2.6.37/006-add-n516-board-support.patch663
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 0000000..c875f13
--- /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);
generated by cgit v1.1 at 2024-12-26 05:55:58 +0000