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673 lines
17 KiB
673 lines
17 KiB
// SPDX-License-Identifier: GPL-2.0 |
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// |
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// Machine specific code for the Acer n30, Acer N35, Navman PiN 570, |
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// Yakumo AlphaX and Airis NC05 PDAs. |
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// |
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// Copyright (c) 2003-2005 Simtec Electronics |
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// Ben Dooks <[email protected]> |
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// |
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// Copyright (c) 2005-2008 Christer Weinigel <[email protected]> |
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// |
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// There is a wiki with more information about the n30 port at |
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// https://handhelds.org/moin/moin.cgi/AcerN30Documentation . |
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#include <linux/kernel.h> |
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#include <linux/types.h> |
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#include <linux/gpio_keys.h> |
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#include <linux/init.h> |
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#include <linux/gpio.h> |
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#include <linux/gpio/machine.h> |
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#include <linux/input.h> |
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#include <linux/interrupt.h> |
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#include <linux/platform_device.h> |
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#include <linux/serial_core.h> |
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#include <linux/serial_s3c.h> |
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#include <linux/timer.h> |
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#include <linux/io.h> |
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#include <linux/mmc/host.h> |
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#include "hardware-s3c24xx.h" |
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#include <asm/irq.h> |
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#include <asm/mach-types.h> |
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#include <linux/platform_data/fb-s3c2410.h> |
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#include <linux/platform_data/leds-s3c24xx.h> |
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#include "regs-gpio.h" |
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#include "gpio-samsung.h" |
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#include "gpio-cfg.h" |
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#include <asm/mach/arch.h> |
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#include <asm/mach/irq.h> |
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#include <asm/mach/map.h> |
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#include <linux/platform_data/i2c-s3c2410.h> |
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#include "cpu.h" |
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#include "devs.h" |
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#include <linux/platform_data/mmc-s3cmci.h> |
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#include <linux/platform_data/usb-s3c2410_udc.h> |
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#include "s3c24xx.h" |
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static struct map_desc n30_iodesc[] __initdata = { |
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/* nothing here yet */ |
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}; |
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static struct s3c2410_uartcfg n30_uartcfgs[] = { |
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/* Normal serial port */ |
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[0] = { |
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.hwport = 0, |
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.flags = 0, |
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.ucon = 0x2c5, |
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.ulcon = 0x03, |
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.ufcon = 0x51, |
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}, |
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/* IR port */ |
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[1] = { |
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.hwport = 1, |
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.flags = 0, |
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.uart_flags = UPF_CONS_FLOW, |
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.ucon = 0x2c5, |
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.ulcon = 0x43, |
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.ufcon = 0x51, |
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}, |
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/* On the N30 the bluetooth controller is connected here. |
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* On the N35 and variants the GPS receiver is connected here. */ |
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[2] = { |
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.hwport = 2, |
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.flags = 0, |
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.ucon = 0x2c5, |
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.ulcon = 0x03, |
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.ufcon = 0x51, |
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}, |
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}; |
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static struct s3c2410_udc_mach_info n30_udc_cfg __initdata = { |
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.vbus_pin = S3C2410_GPG(1), |
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.vbus_pin_inverted = 0, |
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.pullup_pin = S3C2410_GPB(3), |
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}; |
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static struct gpio_keys_button n30_buttons[] = { |
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{ |
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.gpio = S3C2410_GPF(0), |
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.code = KEY_POWER, |
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.desc = "Power", |
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.active_low = 0, |
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}, |
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{ |
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.gpio = S3C2410_GPG(9), |
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.code = KEY_UP, |
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.desc = "Thumbwheel Up", |
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.active_low = 0, |
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}, |
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{ |
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.gpio = S3C2410_GPG(8), |
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.code = KEY_DOWN, |
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.desc = "Thumbwheel Down", |
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.active_low = 0, |
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}, |
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{ |
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.gpio = S3C2410_GPG(7), |
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.code = KEY_ENTER, |
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.desc = "Thumbwheel Press", |
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.active_low = 0, |
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}, |
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{ |
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.gpio = S3C2410_GPF(7), |
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.code = KEY_HOMEPAGE, |
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.desc = "Home", |
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.active_low = 0, |
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}, |
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{ |
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.gpio = S3C2410_GPF(6), |
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.code = KEY_CALENDAR, |
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.desc = "Calendar", |
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.active_low = 0, |
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}, |
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{ |
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.gpio = S3C2410_GPF(5), |
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.code = KEY_ADDRESSBOOK, |
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.desc = "Contacts", |
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.active_low = 0, |
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}, |
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{ |
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.gpio = S3C2410_GPF(4), |
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.code = KEY_MAIL, |
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.desc = "Mail", |
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.active_low = 0, |
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}, |
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}; |
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static struct gpio_keys_platform_data n30_button_data = { |
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.buttons = n30_buttons, |
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.nbuttons = ARRAY_SIZE(n30_buttons), |
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}; |
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static struct platform_device n30_button_device = { |
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.name = "gpio-keys", |
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.id = -1, |
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.dev = { |
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.platform_data = &n30_button_data, |
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} |
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}; |
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static struct gpio_keys_button n35_buttons[] = { |
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{ |
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.gpio = S3C2410_GPF(0), |
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.code = KEY_POWER, |
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.type = EV_PWR, |
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.desc = "Power", |
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.active_low = 0, |
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.wakeup = 1, |
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}, |
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{ |
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.gpio = S3C2410_GPG(9), |
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.code = KEY_UP, |
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.desc = "Joystick Up", |
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.active_low = 0, |
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}, |
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{ |
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.gpio = S3C2410_GPG(8), |
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.code = KEY_DOWN, |
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.desc = "Joystick Down", |
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.active_low = 0, |
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}, |
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{ |
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.gpio = S3C2410_GPG(6), |
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.code = KEY_DOWN, |
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.desc = "Joystick Left", |
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.active_low = 0, |
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}, |
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{ |
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.gpio = S3C2410_GPG(5), |
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.code = KEY_DOWN, |
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.desc = "Joystick Right", |
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.active_low = 0, |
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}, |
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{ |
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.gpio = S3C2410_GPG(7), |
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.code = KEY_ENTER, |
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.desc = "Joystick Press", |
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.active_low = 0, |
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}, |
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{ |
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.gpio = S3C2410_GPF(7), |
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.code = KEY_HOMEPAGE, |
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.desc = "Home", |
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.active_low = 0, |
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}, |
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{ |
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.gpio = S3C2410_GPF(6), |
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.code = KEY_CALENDAR, |
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.desc = "Calendar", |
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.active_low = 0, |
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}, |
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{ |
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.gpio = S3C2410_GPF(5), |
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.code = KEY_ADDRESSBOOK, |
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.desc = "Contacts", |
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.active_low = 0, |
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}, |
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{ |
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.gpio = S3C2410_GPF(4), |
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.code = KEY_MAIL, |
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.desc = "Mail", |
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.active_low = 0, |
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}, |
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{ |
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.gpio = S3C2410_GPF(3), |
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.code = SW_RADIO, |
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.desc = "GPS Antenna", |
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.active_low = 0, |
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}, |
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{ |
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.gpio = S3C2410_GPG(2), |
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.code = SW_HEADPHONE_INSERT, |
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.desc = "Headphone", |
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.active_low = 0, |
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}, |
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}; |
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static struct gpio_keys_platform_data n35_button_data = { |
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.buttons = n35_buttons, |
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.nbuttons = ARRAY_SIZE(n35_buttons), |
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}; |
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static struct platform_device n35_button_device = { |
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.name = "gpio-keys", |
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.id = -1, |
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.num_resources = 0, |
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.dev = { |
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.platform_data = &n35_button_data, |
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} |
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}; |
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/* This is the bluetooth LED on the device. */ |
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static struct gpiod_lookup_table n30_blue_led_gpio_table = { |
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.dev_id = "s3c24xx_led.1", |
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.table = { |
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GPIO_LOOKUP("GPG", 6, NULL, GPIO_ACTIVE_HIGH), |
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{ }, |
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}, |
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}; |
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static struct s3c24xx_led_platdata n30_blue_led_pdata = { |
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.name = "blue_led", |
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.def_trigger = "", |
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}; |
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/* This is the blue LED on the device. Originally used to indicate GPS activity |
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* by flashing. */ |
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static struct gpiod_lookup_table n35_blue_led_gpio_table = { |
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.dev_id = "s3c24xx_led.1", |
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.table = { |
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GPIO_LOOKUP("GPD", 8, NULL, GPIO_ACTIVE_HIGH), |
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{ }, |
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}, |
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}; |
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static struct s3c24xx_led_platdata n35_blue_led_pdata = { |
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.name = "blue_led", |
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.def_trigger = "", |
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}; |
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/* This LED is driven by the battery microcontroller, and is blinking |
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* red, blinking green or solid green when the battery is low, |
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* charging or full respectively. By driving GPD9 low, it's possible |
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* to force the LED to blink red, so call that warning LED. */ |
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static struct gpiod_lookup_table n30_warning_led_gpio_table = { |
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.dev_id = "s3c24xx_led.2", |
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.table = { |
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GPIO_LOOKUP("GPD", 9, NULL, GPIO_ACTIVE_LOW), |
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{ }, |
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}, |
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}; |
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static struct s3c24xx_led_platdata n30_warning_led_pdata = { |
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.name = "warning_led", |
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.def_trigger = "", |
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}; |
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static struct gpiod_lookup_table n35_warning_led_gpio_table = { |
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.dev_id = "s3c24xx_led.2", |
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.table = { |
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GPIO_LOOKUP("GPD", 9, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN), |
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{ }, |
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}, |
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}; |
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static struct s3c24xx_led_platdata n35_warning_led_pdata = { |
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.name = "warning_led", |
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.def_trigger = "", |
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}; |
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static struct platform_device n30_blue_led = { |
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.name = "s3c24xx_led", |
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.id = 1, |
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.dev = { |
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.platform_data = &n30_blue_led_pdata, |
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}, |
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}; |
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static struct platform_device n35_blue_led = { |
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.name = "s3c24xx_led", |
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.id = 1, |
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.dev = { |
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.platform_data = &n35_blue_led_pdata, |
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}, |
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}; |
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static struct platform_device n30_warning_led = { |
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.name = "s3c24xx_led", |
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.id = 2, |
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.dev = { |
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.platform_data = &n30_warning_led_pdata, |
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}, |
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}; |
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static struct platform_device n35_warning_led = { |
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.name = "s3c24xx_led", |
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.id = 2, |
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.dev = { |
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.platform_data = &n35_warning_led_pdata, |
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}, |
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}; |
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static struct s3c2410fb_display n30_display __initdata = { |
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.type = S3C2410_LCDCON1_TFT, |
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.width = 240, |
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.height = 320, |
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.pixclock = 170000, |
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.xres = 240, |
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.yres = 320, |
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.bpp = 16, |
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.left_margin = 3, |
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.right_margin = 40, |
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.hsync_len = 40, |
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.upper_margin = 2, |
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.lower_margin = 3, |
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.vsync_len = 2, |
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.lcdcon5 = S3C2410_LCDCON5_INVVLINE | S3C2410_LCDCON5_INVVFRAME, |
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}; |
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static struct s3c2410fb_mach_info n30_fb_info __initdata = { |
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.displays = &n30_display, |
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.num_displays = 1, |
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.default_display = 0, |
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.lpcsel = 0x06, |
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}; |
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static void n30_sdi_set_power(unsigned char power_mode, unsigned short vdd) |
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{ |
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s3c24xx_mci_def_set_power(power_mode, vdd); |
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switch (power_mode) { |
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case MMC_POWER_ON: |
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case MMC_POWER_UP: |
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gpio_set_value(S3C2410_GPG(4), 1); |
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break; |
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case MMC_POWER_OFF: |
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default: |
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gpio_set_value(S3C2410_GPG(4), 0); |
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break; |
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} |
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} |
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static struct s3c24xx_mci_pdata n30_mci_cfg __initdata = { |
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.ocr_avail = MMC_VDD_32_33, |
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.set_power = n30_sdi_set_power, |
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}; |
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static struct gpiod_lookup_table n30_mci_gpio_table = { |
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.dev_id = "s3c2410-sdi", |
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.table = { |
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/* Card detect S3C2410_GPF(1) */ |
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GPIO_LOOKUP("GPIOF", 1, "cd", GPIO_ACTIVE_LOW), |
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/* Write protect S3C2410_GPG(10) */ |
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GPIO_LOOKUP("GPIOG", 10, "wp", GPIO_ACTIVE_LOW), |
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{ }, |
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/* bus pins */ |
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GPIO_LOOKUP_IDX("GPIOE", 5, "bus", 0, GPIO_ACTIVE_HIGH), |
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GPIO_LOOKUP_IDX("GPIOE", 6, "bus", 1, GPIO_ACTIVE_HIGH), |
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GPIO_LOOKUP_IDX("GPIOE", 7, "bus", 2, GPIO_ACTIVE_HIGH), |
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GPIO_LOOKUP_IDX("GPIOE", 8, "bus", 3, GPIO_ACTIVE_HIGH), |
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GPIO_LOOKUP_IDX("GPIOE", 9, "bus", 4, GPIO_ACTIVE_HIGH), |
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GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH), |
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}, |
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}; |
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static struct platform_device *n30_devices[] __initdata = { |
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&s3c_device_lcd, |
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&s3c_device_wdt, |
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&s3c_device_i2c0, |
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&s3c_device_iis, |
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&s3c_device_ohci, |
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&s3c_device_rtc, |
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&s3c_device_usbgadget, |
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&s3c_device_sdi, |
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&n30_button_device, |
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&n30_blue_led, |
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&n30_warning_led, |
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}; |
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static struct platform_device *n35_devices[] __initdata = { |
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&s3c_device_lcd, |
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&s3c_device_wdt, |
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&s3c_device_i2c0, |
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&s3c_device_iis, |
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&s3c_device_rtc, |
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&s3c_device_usbgadget, |
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&s3c_device_sdi, |
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&n35_button_device, |
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&n35_blue_led, |
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&n35_warning_led, |
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}; |
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static struct s3c2410_platform_i2c __initdata n30_i2ccfg = { |
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.flags = 0, |
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.slave_addr = 0x10, |
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.frequency = 10*1000, |
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}; |
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/* Lots of hardcoded stuff, but it sets up the hardware in a useful |
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* state so that we can boot Linux directly from flash. */ |
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static void __init n30_hwinit(void) |
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{ |
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/* GPA0-11 special functions -- unknown what they do |
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* GPA12 N30 special function -- unknown what it does |
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* N35/PiN output -- unknown what it does |
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* |
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* A12 is nGCS1 on the N30 and an output on the N35/PiN. I |
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* don't think it does anything useful on the N30, so I ought |
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* to make it an output there too since it always driven to 0 |
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* as far as I can tell. */ |
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if (machine_is_n30()) |
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__raw_writel(0x007fffff, S3C2410_GPACON); |
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if (machine_is_n35()) |
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__raw_writel(0x007fefff, S3C2410_GPACON); |
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__raw_writel(0x00000000, S3C2410_GPADAT); |
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/* GPB0 TOUT0 backlight level |
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* GPB1 output 1=backlight on |
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* GPB2 output IrDA enable 0=transceiver enabled, 1=disabled |
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* GPB3 output USB D+ pull up 0=disabled, 1=enabled |
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* GPB4 N30 output -- unknown function |
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* N30/PiN GPS control 0=GPS enabled, 1=GPS disabled |
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* GPB5 output -- unknown function |
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* GPB6 input -- unknown function |
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* GPB7 output -- unknown function |
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* GPB8 output -- probably LCD driver enable |
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* GPB9 output -- probably LCD VSYNC driver enable |
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* GPB10 output -- probably LCD HSYNC driver enable |
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*/ |
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__raw_writel(0x00154556, S3C2410_GPBCON); |
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__raw_writel(0x00000750, S3C2410_GPBDAT); |
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__raw_writel(0x00000073, S3C2410_GPBUP); |
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/* GPC0 input RS232 DCD/DSR/RI |
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* GPC1 LCD |
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* GPC2 output RS232 DTR? |
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* GPC3 input RS232 DCD/DSR/RI |
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* GPC4 LCD |
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* GPC5 output 0=NAND write enabled, 1=NAND write protect |
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* GPC6 input -- unknown function |
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* GPC7 input charger status 0=charger connected |
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* this input can be triggered by power on the USB device |
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* port too, but will go back to disconnected soon after. |
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* GPC8 N30/N35 output -- unknown function, always driven to 1 |
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* PiN input -- unknown function, always read as 1 |
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* Make it an input with a pull up for all models. |
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* GPC9-15 LCD |
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*/ |
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__raw_writel(0xaaa80618, S3C2410_GPCCON); |
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__raw_writel(0x0000014c, S3C2410_GPCDAT); |
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__raw_writel(0x0000fef2, S3C2410_GPCUP); |
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/* GPD0 input -- unknown function |
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* GPD1-D7 LCD |
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* GPD8 N30 output -- unknown function |
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* N35/PiN output 1=GPS LED on |
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* GPD9 output 0=power led blinks red, 1=normal power led function |
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* GPD10 output -- unknown function |
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* GPD11-15 LCD drivers |
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*/ |
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__raw_writel(0xaa95aaa4, S3C2410_GPDCON); |
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__raw_writel(0x00000601, S3C2410_GPDDAT); |
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__raw_writel(0x0000fbfe, S3C2410_GPDUP); |
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/* GPE0-4 I2S audio bus |
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* GPE5-10 SD/MMC bus |
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* E11-13 outputs -- unknown function, probably power management |
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* E14-15 I2C bus connected to the battery controller |
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*/ |
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__raw_writel(0xa56aaaaa, S3C2410_GPECON); |
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__raw_writel(0x0000efc5, S3C2410_GPEDAT); |
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__raw_writel(0x0000f81f, S3C2410_GPEUP); |
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/* GPF0 input 0=power button pressed |
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* GPF1 input SD/MMC switch 0=card present |
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* GPF2 N30 1=reset button pressed (inverted compared to the rest) |
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* N35/PiN 0=reset button pressed |
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* GPF3 N30/PiN input -- unknown function |
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* N35 input GPS antenna position, 0=antenna closed, 1=open |
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* GPF4 input 0=button 4 pressed |
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* GPF5 input 0=button 3 pressed |
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* GPF6 input 0=button 2 pressed |
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* GPF7 input 0=button 1 pressed |
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*/ |
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__raw_writel(0x0000aaaa, S3C2410_GPFCON); |
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__raw_writel(0x00000000, S3C2410_GPFDAT); |
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__raw_writel(0x000000ff, S3C2410_GPFUP); |
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|
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/* GPG0 input RS232 DCD/DSR/RI |
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* GPG1 input 1=USB gadget port has power from a host |
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* GPG2 N30 input -- unknown function |
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* N35/PiN input 0=headphones plugged in, 1=not plugged in |
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* GPG3 N30 output -- unknown function |
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* N35/PiN input with unknown function |
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* GPG4 N30 output 0=MMC enabled, 1=MMC disabled |
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* GPG5 N30 output 0=BlueTooth chip disabled, 1=enabled |
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* N35/PiN input joystick right |
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* GPG6 N30 output 0=blue led on, 1=off |
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* N35/PiN input joystick left |
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* GPG7 input 0=thumbwheel pressed |
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* GPG8 input 0=thumbwheel down |
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* GPG9 input 0=thumbwheel up |
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* GPG10 input SD/MMC write protect switch |
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* GPG11 N30 input -- unknown function |
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* N35 output 0=GPS antenna powered, 1=not powered |
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* PiN output -- unknown function |
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* GPG12-15 touch screen functions |
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* |
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* The pullups differ between the models, so enable all |
|
* pullups that are enabled on any of the models. |
|
*/ |
|
if (machine_is_n30()) |
|
__raw_writel(0xff0a956a, S3C2410_GPGCON); |
|
if (machine_is_n35()) |
|
__raw_writel(0xff4aa92a, S3C2410_GPGCON); |
|
__raw_writel(0x0000e800, S3C2410_GPGDAT); |
|
__raw_writel(0x0000f86f, S3C2410_GPGUP); |
|
|
|
/* GPH0/1/2/3 RS232 serial port |
|
* GPH4/5 IrDA serial port |
|
* GPH6/7 N30 BlueTooth serial port |
|
* N35/PiN GPS receiver |
|
* GPH8 input -- unknown function |
|
* GPH9 CLKOUT0 HCLK -- unknown use |
|
* GPH10 CLKOUT1 FCLK -- unknown use |
|
* |
|
* The pull ups for H6/H7 are enabled on N30 but not on the |
|
* N35/PiN. I suppose is useful for a budget model of the N30 |
|
* with no bluetooth. It doesn't hurt to have the pull ups |
|
* enabled on the N35, so leave them enabled for all models. |
|
*/ |
|
__raw_writel(0x0028aaaa, S3C2410_GPHCON); |
|
__raw_writel(0x000005ef, S3C2410_GPHDAT); |
|
__raw_writel(0x0000063f, S3C2410_GPHUP); |
|
} |
|
|
|
static void __init n30_map_io(void) |
|
{ |
|
s3c24xx_init_io(n30_iodesc, ARRAY_SIZE(n30_iodesc)); |
|
n30_hwinit(); |
|
s3c24xx_init_uarts(n30_uartcfgs, ARRAY_SIZE(n30_uartcfgs)); |
|
s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4); |
|
} |
|
|
|
static void __init n30_init_time(void) |
|
{ |
|
s3c2410_init_clocks(12000000); |
|
s3c24xx_timer_init(); |
|
} |
|
|
|
/* GPB3 is the line that controls the pull-up for the USB D+ line */ |
|
|
|
static void __init n30_init(void) |
|
{ |
|
WARN_ON(gpio_request(S3C2410_GPG(4), "mmc power")); |
|
|
|
s3c24xx_fb_set_platdata(&n30_fb_info); |
|
s3c24xx_udc_set_platdata(&n30_udc_cfg); |
|
gpiod_add_lookup_table(&n30_mci_gpio_table); |
|
s3c24xx_mci_set_platdata(&n30_mci_cfg); |
|
s3c_i2c0_set_platdata(&n30_i2ccfg); |
|
|
|
/* Turn off suspend on both USB ports, and switch the |
|
* selectable USB port to USB device mode. */ |
|
|
|
s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST | |
|
S3C2410_MISCCR_USBSUSPND0 | |
|
S3C2410_MISCCR_USBSUSPND1, 0x0); |
|
|
|
/* Configure the I2S pins (GPE0...GPE4) in correct mode */ |
|
s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2), |
|
S3C_GPIO_PULL_NONE); |
|
|
|
if (machine_is_n30()) { |
|
/* Turn off suspend on both USB ports, and switch the |
|
* selectable USB port to USB device mode. */ |
|
s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST | |
|
S3C2410_MISCCR_USBSUSPND0 | |
|
S3C2410_MISCCR_USBSUSPND1, 0x0); |
|
|
|
/* Disable pull-up and add GPIO tables */ |
|
s3c_gpio_setpull(S3C2410_GPG(6), S3C_GPIO_PULL_NONE); |
|
s3c_gpio_setpull(S3C2410_GPD(9), S3C_GPIO_PULL_NONE); |
|
gpiod_add_lookup_table(&n30_blue_led_gpio_table); |
|
gpiod_add_lookup_table(&n30_warning_led_gpio_table); |
|
|
|
platform_add_devices(n30_devices, ARRAY_SIZE(n30_devices)); |
|
} |
|
|
|
if (machine_is_n35()) { |
|
/* Turn off suspend and switch the selectable USB port |
|
* to USB device mode. Turn on suspend for the host |
|
* port since it is not connected on the N35. |
|
* |
|
* Actually, the host port is available at some pads |
|
* on the back of the device, so it would actually be |
|
* possible to add a USB device inside the N35 if you |
|
* are willing to do some hardware modifications. */ |
|
s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST | |
|
S3C2410_MISCCR_USBSUSPND0 | |
|
S3C2410_MISCCR_USBSUSPND1, |
|
S3C2410_MISCCR_USBSUSPND0); |
|
|
|
/* Disable pull-up and add GPIO tables */ |
|
s3c_gpio_setpull(S3C2410_GPD(8), S3C_GPIO_PULL_NONE); |
|
s3c_gpio_setpull(S3C2410_GPD(9), S3C_GPIO_PULL_NONE); |
|
gpiod_add_lookup_table(&n35_blue_led_gpio_table); |
|
gpiod_add_lookup_table(&n35_warning_led_gpio_table); |
|
|
|
platform_add_devices(n35_devices, ARRAY_SIZE(n35_devices)); |
|
} |
|
} |
|
|
|
MACHINE_START(N30, "Acer-N30") |
|
/* Maintainer: Christer Weinigel <[email protected]>, |
|
Ben Dooks <[email protected]> |
|
*/ |
|
.atag_offset = 0x100, |
|
.init_time = n30_init_time, |
|
.init_machine = n30_init, |
|
.init_irq = s3c2410_init_irq, |
|
.map_io = n30_map_io, |
|
MACHINE_END |
|
|
|
MACHINE_START(N35, "Acer-N35") |
|
/* Maintainer: Christer Weinigel <[email protected]> |
|
*/ |
|
.atag_offset = 0x100, |
|
.init_time = n30_init_time, |
|
.init_machine = n30_init, |
|
.init_irq = s3c2410_init_irq, |
|
.map_io = n30_map_io, |
|
MACHINE_END
|
|
|