Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c3695015087e21ff30606bf7fc661de1582af81b
Commit:     c3695015087e21ff30606bf7fc661de1582af81b
Parent:     6ea59bb3083dea3b48003ea49de12a3e3c868b05
Author:     Andrzej Zaborowski <[EMAIL PROTECTED]>
AuthorDate: Wed Dec 6 17:13:51 2006 -0800
Committer:  Tony Lindgren <[EMAIL PROTECTED]>
CommitDate: Thu Sep 20 18:34:49 2007 -0700

    ARM: OMAP: Palm Tungsten E board update
    
    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 <[EMAIL PROTECTED]>
    Signed-off-by: Tony Lindgren <[EMAIL PROTECTED]>
---
 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 f6ecdd3..84a3b08 100644
--- a/arch/arm/mach-omap1/Kconfig
+++ b/arch/arm/mach-omap1/Kconfig
@@ -84,11 +84,10 @@ 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
-          information.
-          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 0158241..2f9d00a 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
+ *                     [EMAIL PROTECTED]
+ *
+ * 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 e225f4f..539f16d 100644
--- a/include/asm-arm/arch-omap/hardware.h
+++ b/include/asm-arm/arch-omap/hardware.h
@@ -330,6 +330,10 @@
 #include "board-voiceblue.h"
 #endif
 
+#ifdef CONFIG_MACH_OMAP_PALMTE
+#include "board-palmte.h"
+#endif
+
 #endif /* !__ASSEMBLER__ */
 
 #endif /* __ASM_ARCH_OMAP_HARDWARE_H */
-
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