[PATCH 9/90] ARM: OMAP: Palm Tungsten E board update

Tony Lindgren
2007-04-04T18:06:37Z

From: Andrzej Zaborowski <balrog@zabor.org>

General update of the board file for Palm Tungsten E. Registers the
platform devices contained in the PDA (ROM chip, keypad, infra-red)
and updates the configuration for USB and MMC, whose config values
were previously guessed in most cases due to lack of documentation
(and now are confirmed by a number of users). Macros for GPIO pins are
moved to a file in include/asm-arm/arch-omap.

Signed-off-by: Andrzej Zaborowski <balrog@zabor.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
arch/arm/mach-omap1/Kconfig | 9 +-
arch/arm/mach-omap1/board-palmte.c | 377 ++++++++++++++++++++++++++++--
include/asm-arm/arch-omap/board-palmte.h | 34 +++
include/asm-arm/arch-omap/hardware.h | 4 +
4 files changed, 401 insertions(+), 23 deletions(-)

diff --git a/arch/arm/mach-omap1/Kconfig b/arch/arm/mach-omap1/Kconfig
index 8781aae..cc266bf 100644
--- a/arch/arm/mach-omap1/Kconfig
+++ b/arch/arm/mach-omap1/Kconfig
@@ -81,11 +81,10 @@ config MACH_OMAP_PALMTE
bool "Palm Tungsten E"
depends on ARCH_OMAP1 && ARCH_OMAP15XX
help
- Support for the Palm Tungsten E PDA. Currently only the LCD panel
- is supported. To boot the kernel, you'll need a PalmOS compatible
- bootloader; check out http://palmtelinux.sourceforge.net for more
- informations.
- Say Y here if you have such a PDA, say NO otherwise.
+ Support for the Palm Tungsten E PDA. To boot the kernel, you'll
+ need a PalmOS compatible bootloader; check out
+ http://palmtelinux.sourceforge.net/ for more information.
+ Say Y here if you have this PDA model, say N otherwise.

config MACH_NOKIA770
bool "Nokia 770"
diff --git a/arch/arm/mach-omap1/board-palmte.c b/arch/arm/mach-omap1/board-palmte.c
index 4bc8a62..c23e8b6 100644
--- a/arch/arm/mach-omap1/board-palmte.c
+++ b/arch/arm/mach-omap1/board-palmte.c
@@ -17,49 +17,189 @@

#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/input.h>
#include <linux/platform_device.h>
-#include <linux/notifier.h>
-#include <linux/clk.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/tsc2102.h>
+#include <linux/interrupt.h>

+#include <asm/apm.h>
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
+#include <asm/mach/flash.h>

#include <asm/arch/gpio.h>
#include <asm/arch/mux.h>
#include <asm/arch/usb.h>
+#include <asm/arch/tc.h>
+#include <asm/arch/dma.h>
#include <asm/arch/board.h>
+#include <asm/arch/irda.h>
+#include <asm/arch/keypad.h>
#include <asm/arch/common.h>
+#include <asm/arch/mcbsp.h>
+#include <asm/arch/omap-alsa.h>

-static void __init omap_generic_init_irq(void)
+static void __init omap_palmte_init_irq(void)
{
omap1_init_common_hw();
omap_init_irq();
+ omap_gpio_init();
}

+static int palmte_keymap[] = {
+ KEY(0, 0, KEY_F1),
+ KEY(0, 1, KEY_F2),
+ KEY(0, 2, KEY_F3),
+ KEY(0, 3, KEY_F4),
+ KEY(0, 4, KEY_POWER),
+ KEY(1, 0, KEY_LEFT),
+ KEY(1, 1, KEY_DOWN),
+ KEY(1, 2, KEY_UP),
+ KEY(1, 3, KEY_RIGHT),
+ KEY(1, 4, KEY_CENTER),
+ 0,
+};
+
+static struct omap_kp_platform_data palmte_kp_data = {
+ .rows = 8,
+ .cols = 8,
+ .keymap = palmte_keymap,
+ .rep = 1,
+ .delay = 12,
+};
+
+static struct resource palmte_kp_resources[] = {
+ [0] = {
+ .start = INT_KEYBOARD,
+ .end = INT_KEYBOARD,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device palmte_kp_device = {
+ .name = "omap-keypad",
+ .id = -1,
+ .dev = {
+ .platform_data = &palmte_kp_data,
+ },
+ .num_resources = ARRAY_SIZE(palmte_kp_resources),
+ .resource = palmte_kp_resources,
+};
+
+static struct mtd_partition palmte_rom_partitions[] = {
+ /* PalmOS "Small ROM", contains the bootloader and the debugger */
+ {
+ .name = "smallrom",
+ .offset = 0,
+ .size = 0xa000,
+ .mask_flags = MTD_WRITEABLE,
+ },
+ /* PalmOS "Big ROM", a filesystem with all the OS code and data */
+ {
+ .name = "bigrom",
+ .offset = SZ_128K,
+ /*
+ * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
+ * 0x7b0000 bytes in the English-only ("enUS") version.
+ */
+ .size = 0x7b0000,
+ .mask_flags = MTD_WRITEABLE,
+ },
+};
+
+static struct flash_platform_data palmte_rom_data = {
+ .map_name = "map_rom",
+ .width = 2,
+ .parts = palmte_rom_partitions,
+ .nr_parts = ARRAY_SIZE(palmte_rom_partitions),
+};
+
+static struct resource palmte_rom_resource = {
+ .start = OMAP_CS0_PHYS,
+ .end = OMAP_CS0_PHYS + SZ_8M - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device palmte_rom_device = {
+ .name = "omapflash",
+ .id = -1,
+ .dev = {
+ .platform_data = &palmte_rom_data,
+ },
+ .num_resources = 1,
+ .resource = &palmte_rom_resource,
+};
+
static struct platform_device palmte_lcd_device = {
.name = "lcd_palmte",
.id = -1,
};

+static struct omap_backlight_config palmte_backlight_config = {
+ .default_intensity = 0xa0,
+};
+
+static struct platform_device palmte_backlight_device = {
+ .name = "omap-bl",
+ .id = -1,
+ .dev = {
+ .platform_data = &palmte_backlight_config,
+ },
+};
+
+static struct omap_irda_config palmte_irda_config = {
+ .transceiver_cap = IR_SIRMODE,
+ .rx_channel = OMAP_DMA_UART3_RX,
+ .tx_channel = OMAP_DMA_UART3_TX,
+ .dest_start = UART3_THR,
+ .src_start = UART3_RHR,
+ .tx_trigger = 0,
+ .rx_trigger = 0,
+};
+
+static struct resource palmte_irda_resources[] = {
+ [0] = {
+ .start = INT_UART3,
+ .end = INT_UART3,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device palmte_irda_device = {
+ .name = "omapirda",
+ .id = -1,
+ .dev = {
+ .platform_data = &palmte_irda_config,
+ },
+ .num_resources = ARRAY_SIZE(palmte_irda_resources),
+ .resource = palmte_irda_resources,
+};
+
static struct platform_device *devices[] __initdata = {
+ &palmte_rom_device,
+ &palmte_kp_device,
&palmte_lcd_device,
+ &palmte_backlight_device,
+ &palmte_irda_device,
};

static struct omap_usb_config palmte_usb_config __initdata = {
- .register_dev = 1,
+ .register_dev = 1, /* Mini-B only receptacle */
.hmc_mode = 0,
- .pins[0] = 3,
+ .pins[0] = 2,
};

static struct omap_mmc_config palmte_mmc_config __initdata = {
- .mmc [0] = {
+ .mmc[0] = {
.enabled = 1,
- .wire4 = 1,
- .wp_pin = OMAP_MPUIO(3),
- .power_pin = -1,
- .switch_pin = -1,
+ .wp_pin = PALMTE_MMC_WP_GPIO,
+ .power_pin = PALMTE_MMC_POWER_GPIO,
+ .switch_pin = PALMTE_MMC_SWITCH_GPIO,
},
};

@@ -67,21 +207,222 @@ static struct omap_lcd_config palmte_lcd_config __initdata = {
.ctrl_name = "internal",
};

+static struct omap_uart_config palmte_uart_config __initdata = {
+ .enabled_uarts = (1 << 0) | (1 << 1) | (0 << 2),
+};
+
+static struct omap_mcbsp_reg_cfg palmte_mcbsp1_regs = {
+ .spcr2 = FRST | GRST | XRST | XINTM(3),
+ .xcr2 = XDATDLY(1) | XFIG,
+ .xcr1 = XWDLEN1(OMAP_MCBSP_WORD_32),
+ .pcr0 = SCLKME | FSXP | CLKXP,
+};
+
+static struct omap_alsa_codec_config palmte_alsa_config = {
+ .name = "TSC2102 audio",
+ .mcbsp_regs_alsa = &palmte_mcbsp1_regs,
+ .codec_configure_dev = NULL, /* tsc2102_configure, */
+ .codec_set_samplerate = NULL, /* tsc2102_set_samplerate, */
+ .codec_clock_setup = NULL, /* tsc2102_clock_setup, */
+ .codec_clock_on = NULL, /* tsc2102_clock_on, */
+ .codec_clock_off = NULL, /* tsc2102_clock_off, */
+ .get_default_samplerate = NULL, /* tsc2102_get_default_samplerate, */
+};
+
+#ifdef CONFIG_APM
+/*
+ * Values measured in 10 minute intervals averaged over 10 samples.
+ * May differ slightly from device to device but should be accurate
+ * enough to give basic idea of battery life left and trigger
+ * potential alerts.
+ */
+static const int palmte_battery_sample[] = {
+ 2194, 2157, 2138, 2120,
+ 2104, 2089, 2075, 2061,
+ 2048, 2038, 2026, 2016,
+ 2008, 1998, 1989, 1980,
+ 1970, 1958, 1945, 1928,
+ 1910, 1888, 1860, 1827,
+ 1791, 1751, 1709, 1656,
+};
+
+#define INTERVAL 10
+#define BATTERY_HIGH_TRESHOLD 66
+#define BATTERY_LOW_TRESHOLD 33
+
+static void palmte_get_power_status(struct apm_power_info *info, int *battery)
+{
+ int charging, batt, hi, lo, mid;
+
+ charging = !omap_get_gpio_datain(PALMTE_DC_GPIO);
+ batt = battery[0];
+ if (charging)
+ batt -= 60;
+
+ hi = ARRAY_SIZE(palmte_battery_sample);
+ lo = 0;
+
+ info->battery_flag = 0;
+ info->units = APM_UNITS_MINS;
+
+ if (batt > palmte_battery_sample[lo]) {
+ info->battery_life = 100;
+ info->time = INTERVAL * ARRAY_SIZE(palmte_battery_sample);
+ } else if (batt <= palmte_battery_sample[hi - 1]) {
+ info->battery_life = 0;
+ info->time = 0;
+ } else {
+ while (hi > lo + 1) {
+ mid = (hi + lo) >> 2;
+ if (batt <= palmte_battery_sample[mid])
+ lo = mid;
+ else
+ hi = mid;
+ }
+
+ mid = palmte_battery_sample[lo] - palmte_battery_sample[hi];
+ hi = palmte_battery_sample[lo] - batt;
+ info->battery_life = 100 - (100 * lo + 100 * hi / mid) /
+ ARRAY_SIZE(palmte_battery_sample);
+ info->time = INTERVAL * (ARRAY_SIZE(palmte_battery_sample) -
+ lo) - INTERVAL * hi / mid;
+ }
+
+ if (charging) {
+ info->ac_line_status = APM_AC_ONLINE;
+ info->battery_status = APM_BATTERY_STATUS_CHARGING;
+ info->battery_flag |= APM_BATTERY_FLAG_CHARGING;
+ } else {
+ info->ac_line_status = APM_AC_OFFLINE;
+ if (info->battery_life > BATTERY_HIGH_TRESHOLD)
+ info->battery_status = APM_BATTERY_STATUS_HIGH;
+ else if (info->battery_life > BATTERY_LOW_TRESHOLD)
+ info->battery_status = APM_BATTERY_STATUS_LOW;
+ else
+ info->battery_status = APM_BATTERY_STATUS_CRITICAL;
+ }
+
+ if (info->battery_life > BATTERY_HIGH_TRESHOLD)
+ info->battery_flag |= APM_BATTERY_FLAG_HIGH;
+ else if (info->battery_life > BATTERY_LOW_TRESHOLD)
+ info->battery_flag |= APM_BATTERY_FLAG_LOW;
+ else
+ info->battery_flag |= APM_BATTERY_FLAG_CRITICAL;
+}
+#else
+#define palmte_get_power_status NULL
+#endif
+
+static struct tsc2102_config palmte_tsc2102_config = {
+ .use_internal = 0,
+ .monitor = TSC_BAT1 | TSC_AUX | TSC_TEMP,
+ .temp_at25c = { 2200, 2615 },
+ .apm_report = palmte_get_power_status,
+ .alsa_config = &palmte_alsa_config,
+};
+
static struct omap_board_config_kernel palmte_config[] = {
- { OMAP_TAG_USB, &palmte_usb_config },
- { OMAP_TAG_MMC, &palmte_mmc_config },
- { OMAP_TAG_LCD, &palmte_lcd_config },
+ { OMAP_TAG_USB, &palmte_usb_config },
+ { OMAP_TAG_MMC, &palmte_mmc_config },
+ { OMAP_TAG_LCD, &palmte_lcd_config },
+ { OMAP_TAG_UART, &palmte_uart_config },
};

-static void __init omap_generic_init(void)
+static struct spi_board_info palmte_spi_info[] __initdata = {
+ {
+ .modalias = "tsc2102",
+ .bus_num = 2, /* uWire (officially) */
+ .chip_select = 0, /* As opposed to 3 */
+ .irq = OMAP_GPIO_IRQ(PALMTE_PINTDAV_GPIO),
+ .platform_data = &palmte_tsc2102_config,
+ .max_speed_hz = 8000000,
+ },
+};
+
+/* Periodically check for changes on important input pins */
+struct timer_list palmte_pin_timer;
+int prev_power, prev_headphones;
+
+static void palmte_pin_handler(unsigned long data) {
+ int power, headphones;
+
+ power = !omap_get_gpio_datain(PALMTE_DC_GPIO);
+ headphones = omap_get_gpio_datain(PALMTE_HEADPHONES_GPIO);
+
+ if (power && !prev_power)
+ printk(KERN_INFO "PM: cable connected\n");
+ else if (!power && prev_power)
+ printk(KERN_INFO "PM: cable disconnected\n");
+
+ if (headphones && !prev_headphones) {
+ /* Headphones connected, disable speaker */
+ omap_set_gpio_dataout(PALMTE_SPEAKER_GPIO, 0);
+ printk(KERN_INFO "PM: speaker off\n");
+ } else if (!headphones && prev_headphones) {
+ /* Headphones unplugged, re-enable speaker */
+ omap_set_gpio_dataout(PALMTE_SPEAKER_GPIO, 1);
+ printk(KERN_INFO "PM: speaker on\n");
+ }
+
+ prev_power = power;
+ prev_headphones = headphones;
+ mod_timer(&palmte_pin_timer, jiffies + msecs_to_jiffies(500));
+}
+
+static void __init palmte_gpio_setup(void)
+{
+ /* Set TSC2102 PINTDAV pin as input */
+ if (omap_request_gpio(PALMTE_PINTDAV_GPIO)) {
+ printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n");
+ return;
+ }
+ omap_set_gpio_direction(PALMTE_PINTDAV_GPIO, 1);
+
+ /* Monitor cable-connected signals */
+ if (omap_request_gpio(PALMTE_DC_GPIO) ||
+ omap_request_gpio(PALMTE_USB_OR_DC_GPIO) ||
+ omap_request_gpio(PALMTE_USBDETECT_GPIO)) {
+ printk(KERN_ERR "Could not reserve cable signal GPIO!\n");
+ return;
+ }
+ omap_set_gpio_direction(PALMTE_DC_GPIO, 1);
+ omap_set_gpio_direction(PALMTE_USB_OR_DC_GPIO, 1);
+ omap_set_gpio_direction(PALMTE_USBDETECT_GPIO, 1);
+
+ /* Set speaker-enable pin as output */
+ if (omap_request_gpio(PALMTE_SPEAKER_GPIO)) {
+ printk(KERN_ERR "Could not reserve speaker GPIO!\n");
+ return;
+ }
+ omap_set_gpio_direction(PALMTE_SPEAKER_GPIO, 0);
+
+ /* Monitor the headphones-connected signal */
+ if (omap_request_gpio(PALMTE_HEADPHONES_GPIO)) {
+ printk(KERN_ERR "Could not reserve headphones signal GPIO!\n");
+ return;
+ }
+ omap_set_gpio_direction(PALMTE_HEADPHONES_GPIO, 1);
+
+ prev_power = omap_get_gpio_datain(PALMTE_DC_GPIO);
+ prev_headphones = !omap_get_gpio_datain(PALMTE_HEADPHONES_GPIO);
+ setup_timer(&palmte_pin_timer, palmte_pin_handler, 0);
+ palmte_pin_handler(0);
+}
+
+static void __init omap_palmte_init(void)
{
omap_board_config = palmte_config;
omap_board_config_size = ARRAY_SIZE(palmte_config);

platform_add_devices(devices, ARRAY_SIZE(devices));
+
+ spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
+
+ omap_serial_init();
+ palmte_gpio_setup();
}

-static void __init omap_generic_map_io(void)
+static void __init omap_palmte_map_io(void)
{
omap1_map_common_io();
}
@@ -90,8 +431,8 @@ MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
.phys_io = 0xfff00000,
.io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
.boot_params = 0x10000100,
- .map_io = omap_generic_map_io,
- .init_irq = omap_generic_init_irq,
- .init_machine = omap_generic_init,
+ .map_io = omap_palmte_map_io,
+ .init_irq = omap_palmte_init_irq,
+ .init_machine = omap_palmte_init,
.timer = &omap_timer,
MACHINE_END
diff --git a/include/asm-arm/arch-omap/board-palmte.h b/include/asm-arm/arch-omap/board-palmte.h
new file mode 100644
index 0000000..cd22035
--- /dev/null
+++ b/include/asm-arm/arch-omap/board-palmte.h
@@ -0,0 +1,34 @@
+/*
+ * linux/include/asm-arm/arch-omap/board-palmte.h
+ *
+ * Hardware definitions for the Palm Tungsten E device.
+ *
+ * Maintainters : http://palmtelinux.sf.net
+ * palmtelinux-developpers@lists.sf.net
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __OMAP_BOARD_PALMTE_H
+#define __OMAP_BOARD_PALMTE_H
+
+#include <asm/arch/gpio.h>
+
+#define PALMTE_USBDETECT_GPIO 0
+#define PALMTE_USB_OR_DC_GPIO 1
+#define PALMTE_TSC_GPIO 4
+#define PALMTE_PINTDAV_GPIO 6
+#define PALMTE_MMC_WP_GPIO 8
+#define PALMTE_MMC_POWER_GPIO 9
+#define PALMTE_HDQ_GPIO 11
+#define PALMTE_HEADPHONES_GPIO 14
+#define PALMTE_SPEAKER_GPIO 15
+#define PALMTE_DC_GPIO OMAP_MPUIO(2)
+#define PALMTE_MMC_SWITCH_GPIO OMAP_MPUIO(4)
+#define PALMTE_MMC1_GPIO OMAP_MPUIO(6)
+#define PALMTE_MMC2_GPIO OMAP_MPUIO(7)
+#define PALMTE_MMC3_GPIO OMAP_MPUIO(11)
+
+#endif /* __OMAP_BOARD_PALMTE_H */
diff --git a/include/asm-arm/arch-omap/hardware.h b/include/asm-arm/arch-omap/hardware.h
index 481048d..d63e7f0 100644
--- a/include/asm-arm/arch-omap/hardware.h
+++ b/include/asm-arm/arch-omap/hardware.h
@@ -321,6 +321,10 @@
#include "board-voiceblue.h"
#endif

+#ifdef CONFIG_MACH_OMAP_PALMTE
+#include "board-palmte.h"
+#endif
+
#endif /* !__ASSEMBLER__ */

#endif /* __ASM_ARCH_OMAP_HARDWARE_H */
--
1.4.4.2