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Diffstat (limited to 'target/linux/xburst/patches-2.6.36/007-add-n526-board-support.patch')
-rw-r--r--target/linux/xburst/patches-2.6.36/007-add-n526-board-support.patch357
1 files changed, 357 insertions, 0 deletions
diff --git a/target/linux/xburst/patches-2.6.36/007-add-n526-board-support.patch b/target/linux/xburst/patches-2.6.36/007-add-n526-board-support.patch
new file mode 100644
index 0000000..190dfb6
--- /dev/null
+++ b/target/linux/xburst/patches-2.6.36/007-add-n526-board-support.patch
@@ -0,0 +1,357 @@
+From c1eb3a8a799e859b95725b85281c8460e6455135 Mon Sep 17 00:00:00 2001
+From: Lars-Peter Clausen <lars@metafoo.de>
+Date: Sat, 24 Apr 2010 17:25:23 +0200
+Subject: [PATCH] Add n526 board support
+
+---
+ arch/mips/jz4740/Kconfig | 3 +
+ arch/mips/jz4740/Makefile | 1 +
+ arch/mips/jz4740/board-n526.c | 320 +++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 324 insertions(+), 0 deletions(-)
+ create mode 100644 arch/mips/jz4740/board-n526.c
+
+--- a/arch/mips/jz4740/Kconfig
++++ b/arch/mips/jz4740/Kconfig
+@@ -9,6 +9,9 @@ config JZ4740_QI_LB60
+ config JZ4740_N516
+ bool "Hanvon n516 eBook reader"
+
++config JZ4740_N526
++ bool "Hanvon n526 eBook reader"
++
+ endchoice
+
+ config HAVE_PWM
+--- a/arch/mips/jz4740/Makefile
++++ b/arch/mips/jz4740/Makefile
+@@ -13,6 +13,7 @@ obj-$(CONFIG_DEBUG_FS) += clock-debugfs.
+
+ obj-$(CONFIG_JZ4740_QI_LB60) += board-qi_lb60.o
+ obj-$(CONFIG_JZ4740_N516) += board-n516.o board-n516-display.o
++obj-$(CONFIG_JZ4740_N526) += board-n526.o
+
+ # PM support
+
+--- /dev/null
++++ b/arch/mips/jz4740/board-n526.c
+@@ -0,0 +1,320 @@
++/*
++ * 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 <linux/mutex.h>
++#include <linux/wait.h>
++#include <video/broadsheetfb.h>
++#include <linux/delay.h>
++#include <linux/interrupt.h>
++
++#include <linux/input.h>
++#include <linux/gpio_keys.h>
++
++#include <linux/leds.h>
++
++#include <linux/i2c.h>
++
++#include "clock.h"
++
++#include <asm/mach-jz4740/jz4740_mmc.h>
++#include <asm/mach-jz4740/jz4740_nand.h>
++#include <asm/mach-jz4740/jz4740_fb.h>
++
++#include <asm/mach-jz4740/platform.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 = JZ_GPIO_PORTC(30),
++};
++
++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)
++{
++ 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;
++
++ 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), "eink enable");
++ 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], "eink display ctrl");
++ 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), "eink nRD");
++ gpio_direction_output(JZ_GPIO_PORTC(21), 1);
++
++ for(i = 0; i < 16; ++i) {
++ gpio_request(JZ_GPIO_PORTC(i), "eink display data");
++ }
++ jz_gpio_port_direction_output(JZ_GPIO_PORTC(0), 0xffff);
++
++ gpio_set_value(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), "eink busy");
++ 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,
++ },
++};
++
++/* Buttons */
++static struct gpio_keys_button n526_gpio_keys_buttons[] = {
++ [0] = {
++ .code = KEY_ENTER,
++ .gpio = 0,
++ .active_low = 1,
++ .desc = "Power",
++ },
++};
++
++static struct gpio_keys_platform_data n526_gpio_keys_data = {
++ .nbuttons = ARRAY_SIZE(n526_gpio_keys_buttons),
++ .buttons = n526_gpio_keys_buttons,
++};
++
++static struct platform_device n526_gpio_keys_device = {
++ .name = "gpio-keys",
++ .id = -1,
++ .dev = {
++ .platform_data = &n526_gpio_keys_data,
++ }
++};
++
++static struct i2c_board_info n526_i2c_board_info = {
++ .type = "n526-lpc",
++ .addr = 0x54,
++};
++
++static struct platform_device *n526_platform_devices[] __initdata = {
++ &jz4740_usb_ohci_device,
++ &jz4740_udc_device,
++ &jz4740_mmc_device,
++ &jz4740_nand_device,
++ &jz4740_i2s_device,
++ &jz4740_codec_device,
++ &jz4740_pcm_device,
++ &jz4740_rtc_device,
++ &jz4740_i2c_device,
++ &n526_leds_device,
++ &n526_broadsheet_device,
++ &n526_gpio_keys_device,
++};
++
++static int __init n526_init_platform_devices(void)
++{
++ jz4740_nand_device.dev.platform_data = &n526_nand_pdata;
++ jz4740_mmc_device.dev.platform_data = &n526_mmc_pdata;
++
++ jz4740_serial_device_register();
++
++ 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(n526_platform_devices,
++ ARRAY_SIZE(n526_platform_devices));
++
++}
++
++struct jz4740_clock_board_data jz4740_clock_bdata = {
++ .ext_rate = 12000000,
++ .rtc_rate = 32768,
++};
++
++static int __init n526_board_setup(void)
++{
++ board_gpio_setup();
++
++ if (n526_init_platform_devices())
++ panic("Failed to initalize platform devices\n");
++
++ return 0;
++}
++arch_initcall(n526_board_setup);