mirror of https://github.com/hak5/openwrt.git
359 lines
8.8 KiB
Diff
359 lines
8.8 KiB
Diff
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);
|