From c49e1e63a9c7893d9ff9be4258d86ddc5485d712 Mon Sep 17 00:00:00 2001 From: Sergey Lapin Date: Fri, 29 Aug 2008 15:47:52 +0100 Subject: [ARM] 5238/2: Very basic Palm Zire 72 support This patch contains very basic support of Palm Zire 72. Signed-off-by: Sergey Lapin Acked-by: Eric Miao Signed-off-by: Russell King --- arch/arm/mach-pxa/include/mach/palmz72.h | 67 ++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 arch/arm/mach-pxa/include/mach/palmz72.h (limited to 'arch/arm/mach-pxa/include/mach/palmz72.h') diff --git a/arch/arm/mach-pxa/include/mach/palmz72.h b/arch/arm/mach-pxa/include/mach/palmz72.h new file mode 100644 index 00000000000..8fd30bcecb7 --- /dev/null +++ b/arch/arm/mach-pxa/include/mach/palmz72.h @@ -0,0 +1,67 @@ +/* + * GPIOs and interrupts for Palm Zire72 Handheld Computer + * + * Authors: Alex Osborne + * Jan Herman <2hp@seznam.cz> + * Sergey Lapin + * + * 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 _INCLUDE_PALMZ72_H_ +#define _INCLUDE_PALMZ72_H_ + +/* Power and control */ +#define GPIO_NR_PALMZ72_GPIO_RESET 1 +#define GPIO_NR_PALMZ72_POWER_DETECT 0 + +/* SD/MMC */ +#define GPIO_NR_PALMZ72_SD_DETECT_N 14 +#define GPIO_NR_PALMZ72_SD_POWER_N 98 +#define GPIO_NR_PALMZ72_SD_RO 115 + +/* Touchscreen */ +#define GPIO_NR_PALMZ72_WM9712_IRQ 27 + +/* IRDA - disable GPIO connected to SD pin of tranceiver (TFBS4710?) ? */ +#define GPIO_NR_PALMZ72_IR_DISABLE 49 + +/* USB */ +#define GPIO_NR_PALMZ72_USB_DETECT_N 15 +#define GPIO_NR_PALMZ72_USB_POWER 95 +#define GPIO_NR_PALMZ72_USB_PULLUP 12 + +/* LCD/Backlight */ +#define GPIO_NR_PALMZ72_BL_POWER 20 +#define GPIO_NR_PALMZ72_LCD_POWER 96 + +/* LED */ +#define GPIO_NR_PALMZ72_LED_GREEN 88 + +/* Bluetooth */ +#define GPIO_NR_PALMZ72_BT_POWER 17 +#define GPIO_NR_PALMZ72_BT_RESET 83 + +/** Initial values **/ + +/* Battery */ +#define PALMZ72_BAT_MAX_VOLTAGE 4000 /* 4.00v current voltage */ +#define PALMZ72_BAT_MIN_VOLTAGE 3550 /* 3.55v critical voltage */ +#define PALMZ72_BAT_MAX_CURRENT 0 /* unknokn */ +#define PALMZ72_BAT_MIN_CURRENT 0 /* unknown */ +#define PALMZ72_BAT_MAX_CHARGE 1 /* unknown */ +#define PALMZ72_BAT_MIN_CHARGE 1 /* unknown */ +#define PALMZ72_MAX_LIFE_MINS 360 /* on-life in minutes */ + +/* Backlight */ +#define PALMZ72_MAX_INTENSITY 0xFE +#define PALMZ72_DEFAULT_INTENSITY 0x7E +#define PALMZ72_LIMIT_MASK 0x7F +#define PALMZ72_PRESCALER 0x3F +#define PALMZ72_PERIOD_NS 3500 + +#endif + -- cgit v1.2.3-70-g09d2 From fda50a1c49ad7483eaa29a268d560422c413933f Mon Sep 17 00:00:00 2001 From: Sergey Lapin Date: Fri, 29 Aug 2008 15:53:24 +0100 Subject: [ARM] 5239/1: Palm Zire 72 power management support This patch contains Palm Zire 72 power management support. Depends on #5238/1 Signed-off-by: Sergey Lapin Signed-off-by: Russell King --- arch/arm/mach-pxa/include/mach/palmz72.h | 13 ++++++ arch/arm/mach-pxa/palmz72.c | 74 ++++++++++++++++++++++++++++++++ 2 files changed, 87 insertions(+) (limited to 'arch/arm/mach-pxa/include/mach/palmz72.h') diff --git a/arch/arm/mach-pxa/include/mach/palmz72.h b/arch/arm/mach-pxa/include/mach/palmz72.h index 8fd30bcecb7..5032307ebf7 100644 --- a/arch/arm/mach-pxa/include/mach/palmz72.h +++ b/arch/arm/mach-pxa/include/mach/palmz72.h @@ -63,5 +63,18 @@ #define PALMZ72_PRESCALER 0x3F #define PALMZ72_PERIOD_NS 3500 +#ifdef CONFIG_PM +struct palmz72_resume_info { + u32 magic0; /* 0x0 */ + u32 magic1; /* 0x4 */ + u32 resume_addr; /* 0x8 */ + u32 pad[11]; /* 0xc..0x37 */ + u32 arm_control; /* 0x38 */ + u32 aux_control; /* 0x3c */ + u32 ttb; /* 0x40 */ + u32 domain_access; /* 0x44 */ + u32 process_id; /* 0x48 */ +}; +#endif #endif diff --git a/arch/arm/mach-pxa/palmz72.c b/arch/arm/mach-pxa/palmz72.c index a90b4d77a20..2f730da3bba 100644 --- a/arch/arm/mach-pxa/palmz72.c +++ b/arch/arm/mach-pxa/palmz72.c @@ -449,6 +449,80 @@ static struct pxafb_mach_info palmz72_lcd_screen = { .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, }; +#ifdef CONFIG_PM + +/* We have some black magic here + * PalmOS ROM on recover expects special struct physical address + * to be transferred via PSPR. Using this struct PalmOS restores + * its state after sleep. As for Linux, we need to setup it the + * same way. More than that, PalmOS ROM changes some values in memory. + * For now only one location is found, which needs special treatment. + * Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people + * for reading backtraces for me :) + */ + +#define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050) + +static struct palmz72_resume_info palmz72_resume_info = { + .magic0 = 0xb4e6, + .magic1 = 1, + + /* reset state, MMU off etc */ + .arm_control = 0, + .aux_control = 0, + .ttb = 0, + .domain_access = 0, + .process_id = 0, +}; + +static unsigned long store_ptr; + +/* sys_device for Palm Zire 72 PM */ + +static int palmz72_pm_suspend(struct sys_device *dev, pm_message_t msg) +{ + /* setup the resume_info struct for the original bootloader */ + palmz72_resume_info.resume_addr = (u32) pxa_cpu_resume; + + /* Storing memory touched by ROM */ + store_ptr = *PALMZ72_SAVE_DWORD; + + /* Setting PSPR to a proper value */ + PSPR = virt_to_phys(&palmz72_resume_info); + + return 0; +} + +static int palmz72_pm_resume(struct sys_device *dev) +{ + *PALMZ72_SAVE_DWORD = store_ptr; + return 0; +} + +static struct sysdev_class palmz72_pm_sysclass = { + .name = "palmz72_pm", + .suspend = palmz72_pm_suspend, + .resume = palmz72_pm_resume, +}; + +static struct sys_device palmz72_pm_device = { + .cls = &palmz72_pm_sysclass, +}; + +static int __init palmz72_pm_init(void) +{ + int ret = -ENODEV; + if (machine_is_palmz72()) { + ret = sysdev_class_register(&palmz72_pm_sysclass); + if (ret == 0) + ret = sysdev_register(&palmz72_pm_device); + } + return ret; +} + +device_initcall(palmz72_pm_init); +#endif + /****************************************************************************** * Machine init ******************************************************************************/ -- cgit v1.2.3-70-g09d2