+++ /dev/null
-From 5739f1348052000ed12a7745f7bafd352fff832a 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 07/23] Add n526 board support
-
----
- arch/mips/jz4740/Kconfig | 4 +
- arch/mips/jz4740/Makefile | 1 +
- arch/mips/jz4740/board-n526.c | 318 +++++++++++++++++++++++++++++++++++++++++
- 3 files changed, 323 insertions(+), 0 deletions(-)
- create mode 100644 arch/mips/jz4740/board-n526.c
-
---- a/arch/mips/jz4740/Kconfig
-+++ b/arch/mips/jz4740/Kconfig
-@@ -10,6 +10,10 @@ config JZ4740_N516
- bool "Hanvon n516 eBook reader"
- select SOC_JZ4740
-
-+config JZ4740_N526
-+ bool "Hanvon n526 eBook reader"
-+ select SOC_JZ4740
-+
- 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);
projects / openwrt / openwrt.git / blobdiff