forked from Minki/linux
Merge branch 'next-s3c' of git://aeryn.fluff.org.uk/bjdooks/linux into devel
This commit is contained in:
Russell King
Russell King
commit
413427b567
@ -1362,6 +1362,27 @@ and is between 256 and 4096 characters. It is defined in the file
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||||
min_addr=nn[KMG] [KNL,BOOT,ia64] All physical memory below this
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physical address is ignored.
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mini2440= [ARM,HW,KNL]
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Format:[0..2][b][c][t]
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Default: "0tb"
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MINI2440 configuration specification:
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0 - The attached screen is the 3.5" TFT
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1 - The attached screen is the 7" TFT
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2 - The VGA Shield is attached (1024x768)
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Leaving out the screen size parameter will not load
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the TFT driver, and the framebuffer will be left
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unconfigured.
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b - Enable backlight. The TFT backlight pin will be
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linked to the kernel VESA blanking code and a GPIO
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LED. This parameter is not necessary when using the
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VGA shield.
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c - Enable the s3c camera interface.
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t - Reserved for enabling touchscreen support. The
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touchscreen support is not enabled in the mainstream
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kernel as of 2.6.30, a preliminary port can be found
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in the "bleeding edge" mini2440 support kernel at
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http://repo.or.cz/w/linux-2.6/mini2440.git
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mminit_loglevel=
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[KNL] When CONFIG_DEBUG_MEMORY_INIT is set, this
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parameter allows control of the logging verbosity for
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@ -788,6 +788,13 @@ P: Michael Petchkovsky
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M: mkpetch@internode.on.net
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S: Maintained
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ARM/OPENMOKO NEO FREERUNNER (GTA02) MACHINE SUPPORT
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P: Nelson Castillo
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M: arhuaco@freaks-unidos.net
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L: openmoko-kernel@lists.openmoko.org (subscribers-only)
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W: http://wiki.openmoko.org/wiki/Neo_FreeRunner
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S: Supported
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ARM/TOSA MACHINE SUPPORT
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P: Dmitry Eremin-Solenikov
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M: dbaryshkov@gmail.com
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@ -1241,7 +1241,7 @@ endmenu
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menu "CPU Power Management"
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if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_PXA)
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if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_PXA || ARCH_S3C64XX)
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source "drivers/cpufreq/Kconfig"
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@ -1272,6 +1272,10 @@ config CPU_FREQ_PXA
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default y
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select CPU_FREQ_DEFAULT_GOV_USERSPACE
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config CPU_FREQ_S3C64XX
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bool "CPUfreq support for Samsung S3C64XX CPUs"
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depends on CPU_FREQ && CPU_S3C6410
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endif
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source "drivers/cpuidle/Kconfig"
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@ -229,14 +229,18 @@ static int vic_set_wake(unsigned int irq, unsigned int on)
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{
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struct vic_device *v = vic_from_irq(irq);
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unsigned int off = irq & 31;
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u32 bit = 1 << off;
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if (!v)
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return -EINVAL;
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if (!(bit & v->resume_sources))
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return -EINVAL;
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if (on)
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v->resume_irqs |= 1 << off;
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v->resume_irqs |= bit;
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else
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v->resume_irqs &= ~(1 << off);
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v->resume_irqs &= ~bit;
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return 0;
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}
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2097
arch/arm/configs/mini2440_defconfig
Normal file
2097
arch/arm/configs/mini2440_defconfig
Normal file
File diff suppressed because it is too large
Load Diff
@ -22,7 +22,6 @@
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#include <linux/timer.h>
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#include <linux/init.h>
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#include <linux/device.h>
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#include <linux/gpio.h>
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#include <linux/io.h>
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#include <asm/mach/arch.h>
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@ -84,5 +84,15 @@ config MACH_AT2440EVB
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help
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Say Y here if you are using the AT2440EVB development board
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config MACH_MINI2440
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bool "MINI2440 development board"
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select CPU_S3C2440
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select EEPROM_AT24
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select LEDS_TRIGGER_BACKLIGHT
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select SND_S3C24XX_SOC_S3C24XX_UDA134X
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help
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Say Y here to select support for the MINI2440. Is a 10cm x 10cm board
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available via various sources. It can come with a 3.5" or 7" touch LCD.
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endmenu
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@ -22,3 +22,4 @@ obj-$(CONFIG_MACH_RX3715) += mach-rx3715.o
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obj-$(CONFIG_ARCH_S3C2440) += mach-smdk2440.o
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obj-$(CONFIG_MACH_NEXCODER_2440) += mach-nexcoder.o
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obj-$(CONFIG_MACH_AT2440EVB) += mach-at2440evb.o
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obj-$(CONFIG_MACH_MINI2440) += mach-mini2440.o
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703
arch/arm/mach-s3c2440/mach-mini2440.c
Normal file
703
arch/arm/mach-s3c2440/mach-mini2440.c
Normal file
@ -0,0 +1,703 @@
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/* linux/arch/arm/mach-s3c2440/mach-mini2440.c
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*
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* Copyright (c) 2008 Ramax Lo <ramaxlo@gmail.com>
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* Based on mach-anubis.c by Ben Dooks <ben@simtec.co.uk>
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* and modifications by SBZ <sbz@spgui.org> and
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* Weibing <http://weibing.blogbus.com> and
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* Michel Pollet <buserror@gmail.com>
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*
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* For product information, visit http://code.google.com/p/mini2440/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <linux/list.h>
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#include <linux/timer.h>
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#include <linux/init.h>
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#include <linux/gpio.h>
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#include <linux/input.h>
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#include <linux/io.h>
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#include <linux/serial_core.h>
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#include <linux/dm9000.h>
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#include <linux/i2c/at24.h>
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#include <linux/platform_device.h>
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#include <linux/gpio_keys.h>
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#include <linux/i2c.h>
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#include <linux/mmc/host.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <mach/hardware.h>
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#include <mach/fb.h>
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#include <asm/mach-types.h>
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#include <plat/regs-serial.h>
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#include <mach/regs-gpio.h>
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#include <mach/leds-gpio.h>
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#include <mach/regs-mem.h>
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#include <mach/regs-lcd.h>
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#include <mach/irqs.h>
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#include <plat/nand.h>
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#include <plat/iic.h>
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#include <plat/mci.h>
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#include <plat/udc.h>
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#include <plat/regs-serial.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/nand.h>
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#include <linux/mtd/nand_ecc.h>
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#include <linux/mtd/partitions.h>
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#include <plat/clock.h>
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#include <plat/devs.h>
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#include <plat/cpu.h>
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#include <sound/s3c24xx_uda134x.h>
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#define MACH_MINI2440_DM9K_BASE (S3C2410_CS4 + 0x300)
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static struct map_desc mini2440_iodesc[] __initdata = {
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/* nothing to declare, move along */
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};
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#define UCON S3C2410_UCON_DEFAULT
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#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
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#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
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static struct s3c2410_uartcfg mini2440_uartcfgs[] __initdata = {
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[0] = {
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.hwport = 0,
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.flags = 0,
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.ucon = UCON,
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.ulcon = ULCON,
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.ufcon = UFCON,
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},
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[1] = {
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.hwport = 1,
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.flags = 0,
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.ucon = UCON,
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.ulcon = ULCON,
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.ufcon = UFCON,
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},
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[2] = {
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.hwport = 2,
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.flags = 0,
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.ucon = UCON,
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.ulcon = ULCON,
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.ufcon = UFCON,
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},
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};
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/* USB device UDC support */
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static void mini2440_udc_pullup(enum s3c2410_udc_cmd_e cmd)
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{
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pr_debug("udc: pullup(%d)\n", cmd);
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switch (cmd) {
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case S3C2410_UDC_P_ENABLE :
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s3c2410_gpio_setpin(S3C2410_GPC(5), 1);
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break;
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case S3C2410_UDC_P_DISABLE :
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s3c2410_gpio_setpin(S3C2410_GPC(5), 0);
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break;
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case S3C2410_UDC_P_RESET :
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break;
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default:
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break;
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}
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}
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static struct s3c2410_udc_mach_info mini2440_udc_cfg __initdata = {
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.udc_command = mini2440_udc_pullup,
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};
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/* LCD timing and setup */
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/*
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* This macro simplifies the table bellow
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*/
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#define _LCD_DECLARE(_clock,_xres,margin_left,margin_right,hsync, \
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_yres,margin_top,margin_bottom,vsync, refresh) \
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.width = _xres, \
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.xres = _xres, \
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.height = _yres, \
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.yres = _yres, \
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.left_margin = margin_left, \
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.right_margin = margin_right, \
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.upper_margin = margin_top, \
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.lower_margin = margin_bottom, \
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.hsync_len = hsync, \
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.vsync_len = vsync, \
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.pixclock = ((_clock*100000000000LL) / \
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((refresh) * \
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(hsync + margin_left + _xres + margin_right) * \
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(vsync + margin_top + _yres + margin_bottom))), \
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.bpp = 16,\
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.type = (S3C2410_LCDCON1_TFT16BPP |\
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S3C2410_LCDCON1_TFT)
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struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = {
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[0] = { /* mini2440 + 3.5" TFT + touchscreen */
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_LCD_DECLARE(
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7, /* The 3.5 is quite fast */
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240, 21, 38, 6, /* x timing */
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320, 4, 4, 2, /* y timing */
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60), /* refresh rate */
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.lcdcon5 = (S3C2410_LCDCON5_FRM565 |
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S3C2410_LCDCON5_INVVLINE |
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S3C2410_LCDCON5_INVVFRAME |
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S3C2410_LCDCON5_INVVDEN |
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S3C2410_LCDCON5_PWREN),
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},
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[1] = { /* mini2440 + 7" TFT + touchscreen */
|
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_LCD_DECLARE(
|
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10, /* the 7" runs slower */
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800, 40, 40, 48, /* x timing */
|
||||
480, 29, 3, 3, /* y timing */
|
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50), /* refresh rate */
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||||
.lcdcon5 = (S3C2410_LCDCON5_FRM565 |
|
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S3C2410_LCDCON5_INVVLINE |
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S3C2410_LCDCON5_INVVFRAME |
|
||||
S3C2410_LCDCON5_PWREN),
|
||||
},
|
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/* The VGA shield can outout at several resolutions. All share
|
||||
* the same timings, however, anything smaller than 1024x768
|
||||
* will only be displayed in the top left corner of a 1024x768
|
||||
* XGA output unless you add optional dip switches to the shield.
|
||||
* Therefore timings for other resolutions have been ommited here.
|
||||
*/
|
||||
[2] = {
|
||||
_LCD_DECLARE(
|
||||
10,
|
||||
1024, 1, 2, 2, /* y timing */
|
||||
768, 200, 16, 16, /* x timing */
|
||||
24), /* refresh rate, maximum stable,
|
||||
tested with the FPGA shield */
|
||||
.lcdcon5 = (S3C2410_LCDCON5_FRM565 |
|
||||
S3C2410_LCDCON5_HWSWP),
|
||||
},
|
||||
};
|
||||
|
||||
/* todo - put into gpio header */
|
||||
|
||||
#define S3C2410_GPCCON_MASK(x) (3 << ((x) * 2))
|
||||
#define S3C2410_GPDCON_MASK(x) (3 << ((x) * 2))
|
||||
|
||||
struct s3c2410fb_mach_info mini2440_fb_info __initdata = {
|
||||
.displays = &mini2440_lcd_cfg[0], /* not constant! see init */
|
||||
.num_displays = 1,
|
||||
.default_display = 0,
|
||||
|
||||
/* Enable VD[2..7], VD[10..15], VD[18..23] and VCLK, syncs, VDEN
|
||||
* and disable the pull down resistors on pins we are using for LCD
|
||||
* data. */
|
||||
|
||||
.gpcup = (0xf << 1) | (0x3f << 10),
|
||||
|
||||
.gpccon = (S3C2410_GPC1_VCLK | S3C2410_GPC2_VLINE |
|
||||
S3C2410_GPC3_VFRAME | S3C2410_GPC4_VM |
|
||||
S3C2410_GPC10_VD2 | S3C2410_GPC11_VD3 |
|
||||
S3C2410_GPC12_VD4 | S3C2410_GPC13_VD5 |
|
||||
S3C2410_GPC14_VD6 | S3C2410_GPC15_VD7),
|
||||
|
||||
.gpccon_mask = (S3C2410_GPCCON_MASK(1) | S3C2410_GPCCON_MASK(2) |
|
||||
S3C2410_GPCCON_MASK(3) | S3C2410_GPCCON_MASK(4) |
|
||||
S3C2410_GPCCON_MASK(10) | S3C2410_GPCCON_MASK(11) |
|
||||
S3C2410_GPCCON_MASK(12) | S3C2410_GPCCON_MASK(13) |
|
||||
S3C2410_GPCCON_MASK(14) | S3C2410_GPCCON_MASK(15)),
|
||||
|
||||
.gpdup = (0x3f << 2) | (0x3f << 10),
|
||||
|
||||
.gpdcon = (S3C2410_GPD2_VD10 | S3C2410_GPD3_VD11 |
|
||||
S3C2410_GPD4_VD12 | S3C2410_GPD5_VD13 |
|
||||
S3C2410_GPD6_VD14 | S3C2410_GPD7_VD15 |
|
||||
S3C2410_GPD10_VD18 | S3C2410_GPD11_VD19 |
|
||||
S3C2410_GPD12_VD20 | S3C2410_GPD13_VD21 |
|
||||
S3C2410_GPD14_VD22 | S3C2410_GPD15_VD23),
|
||||
|
||||
.gpdcon_mask = (S3C2410_GPDCON_MASK(2) | S3C2410_GPDCON_MASK(3) |
|
||||
S3C2410_GPDCON_MASK(4) | S3C2410_GPDCON_MASK(5) |
|
||||
S3C2410_GPDCON_MASK(6) | S3C2410_GPDCON_MASK(7) |
|
||||
S3C2410_GPDCON_MASK(10) | S3C2410_GPDCON_MASK(11)|
|
||||
S3C2410_GPDCON_MASK(12) | S3C2410_GPDCON_MASK(13)|
|
||||
S3C2410_GPDCON_MASK(14) | S3C2410_GPDCON_MASK(15)),
|
||||
};
|
||||
|
||||
/* MMC/SD */
|
||||
|
||||
static struct s3c24xx_mci_pdata mini2440_mmc_cfg __initdata = {
|
||||
.gpio_detect = S3C2410_GPG(8),
|
||||
.gpio_wprotect = S3C2410_GPH(8),
|
||||
.set_power = NULL,
|
||||
.ocr_avail = MMC_VDD_32_33|MMC_VDD_33_34,
|
||||
};
|
||||
|
||||
/* NAND Flash on MINI2440 board */
|
||||
|
||||
static struct mtd_partition mini2440_default_nand_part[] __initdata = {
|
||||
[0] = {
|
||||
.name = "u-boot",
|
||||
.size = SZ_256K,
|
||||
.offset = 0,
|
||||
},
|
||||
[1] = {
|
||||
.name = "u-boot-env",
|
||||
.size = SZ_128K,
|
||||
.offset = SZ_256K,
|
||||
},
|
||||
[2] = {
|
||||
.name = "kernel",
|
||||
/* 5 megabytes, for a kernel with no modules
|
||||
* or a uImage with a ramdisk attached */
|
||||
.size = 0x00500000,
|
||||
.offset = SZ_256K + SZ_128K,
|
||||
},
|
||||
[3] = {
|
||||
.name = "root",
|
||||
.offset = SZ_256K + SZ_128K + 0x00500000,
|
||||
.size = MTDPART_SIZ_FULL,
|
||||
},
|
||||
};
|
||||
|
||||
static struct s3c2410_nand_set mini2440_nand_sets[] __initdata = {
|
||||
[0] = {
|
||||
.name = "nand",
|
||||
.nr_chips = 1,
|
||||
.nr_partitions = ARRAY_SIZE(mini2440_default_nand_part),
|
||||
.partitions = mini2440_default_nand_part,
|
||||
},
|
||||
};
|
||||
|
||||
static struct s3c2410_platform_nand mini2440_nand_info __initdata = {
|
||||
.tacls = 0,
|
||||
.twrph0 = 25,
|
||||
.twrph1 = 15,
|
||||
.nr_sets = ARRAY_SIZE(mini2440_nand_sets),
|
||||
.sets = mini2440_nand_sets,
|
||||
.ignore_unset_ecc = 1,
|
||||
};
|
||||
|
||||
/* DM9000AEP 10/100 ethernet controller */
|
||||
|
||||
static struct resource mini2440_dm9k_resource[] __initdata = {
|
||||
[0] = {
|
||||
.start = MACH_MINI2440_DM9K_BASE,
|
||||
.end = MACH_MINI2440_DM9K_BASE + 3,
|
||||
.flags = IORESOURCE_MEM
|
||||
},
|
||||
[1] = {
|
||||
.start = MACH_MINI2440_DM9K_BASE + 4,
|
||||
.end = MACH_MINI2440_DM9K_BASE + 7,
|
||||
.flags = IORESOURCE_MEM
|
||||
},
|
||||
[2] = {
|
||||
.start = IRQ_EINT7,
|
||||
.end = IRQ_EINT7,
|
||||
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
|
||||
}
|
||||
};
|
||||
|
||||
/*
|
||||
* The DM9000 has no eeprom, and it's MAC address is set by
|
||||
* the bootloader before starting the kernel.
|
||||
*/
|
||||
static struct dm9000_plat_data mini2440_dm9k_pdata __initdata = {
|
||||
.flags = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
|
||||
};
|
||||
|
||||
static struct platform_device mini2440_device_eth __initdata = {
|
||||
.name = "dm9000",
|
||||
.id = -1,
|
||||
.num_resources = ARRAY_SIZE(mini2440_dm9k_resource),
|
||||
.resource = mini2440_dm9k_resource,
|
||||
.dev = {
|
||||
.platform_data = &mini2440_dm9k_pdata,
|
||||
},
|
||||
};
|
||||
|
||||
/* CON5
|
||||
* +--+ /-----\
|
||||
* | | | |
|
||||
* | | | BAT |
|
||||
* | | \_____/
|
||||
* | |
|
||||
* | | +----+ +----+
|
||||
* | | | K5 | | K1 |
|
||||
* | | +----+ +----+
|
||||
* | | +----+ +----+
|
||||
* | | | K4 | | K2 |
|
||||
* | | +----+ +----+
|
||||
* | | +----+ +----+
|
||||
* | | | K6 | | K3 |
|
||||
* | | +----+ +----+
|
||||
* .....
|
||||
*/
|
||||
static struct gpio_keys_button mini2440_buttons[] __initdata = {
|
||||
{
|
||||
.gpio = S3C2410_GPG(0), /* K1 */
|
||||
.code = KEY_F1,
|
||||
.desc = "Button 1",
|
||||
.active_low = 1,
|
||||
},
|
||||
{
|
||||
.gpio = S3C2410_GPG(3), /* K2 */
|
||||
.code = KEY_F2,
|
||||
.desc = "Button 2",
|
||||
.active_low = 1,
|
||||
},
|
||||
{
|
||||
.gpio = S3C2410_GPG(5), /* K3 */
|
||||
.code = KEY_F3,
|
||||
.desc = "Button 3",
|
||||
.active_low = 1,
|
||||
},
|
||||
{
|
||||
.gpio = S3C2410_GPG(6), /* K4 */
|
||||
.code = KEY_POWER,
|
||||
.desc = "Power",
|
||||
.active_low = 1,
|
||||
},
|
||||
{
|
||||
.gpio = S3C2410_GPG(7), /* K5 */
|
||||
.code = KEY_F5,
|
||||
.desc = "Button 5",
|
||||
.active_low = 1,
|
||||
},
|
||||
#if 0
|
||||
/* this pin is also known as TCLK1 and seems to already
|
||||
* marked as "in use" somehow in the kernel -- possibly wrongly */
|
||||
{
|
||||
.gpio = S3C2410_GPG(11), /* K6 */
|
||||
.code = KEY_F6,
|
||||
.desc = "Button 6",
|
||||
.active_low = 1,
|
||||
},
|
||||
#endif
|
||||
};
|
||||
|
||||
static struct gpio_keys_platform_data mini2440_button_data __initdata = {
|
||||
.buttons = mini2440_buttons,
|
||||
.nbuttons = ARRAY_SIZE(mini2440_buttons),
|
||||
};
|
||||
|
||||
static struct platform_device mini2440_button_device __initdata = {
|
||||
.name = "gpio-keys",
|
||||
.id = -1,
|
||||
.dev = {
|
||||
.platform_data = &mini2440_button_data,
|
||||
}
|
||||
};
|
||||
|
||||
/* LEDS */
|
||||
|
||||
static struct s3c24xx_led_platdata mini2440_led1_pdata __initdata = {
|
||||
.name = "led1",
|
||||
.gpio = S3C2410_GPB(5),
|
||||
.flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
|
||||
.def_trigger = "heartbeat",
|
||||
};
|
||||
|
||||
static struct s3c24xx_led_platdata mini2440_led2_pdata __initdata = {
|
||||
.name = "led2",
|
||||
.gpio = S3C2410_GPB(6),
|
||||
.flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
|
||||
.def_trigger = "nand-disk",
|
||||
};
|
||||
|
||||
static struct s3c24xx_led_platdata mini2440_led3_pdata __initdata = {
|
||||
.name = "led3",
|
||||
.gpio = S3C2410_GPB(7),
|
||||
.flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
|
||||
.def_trigger = "mmc0",
|
||||
};
|
||||
|
||||
static struct s3c24xx_led_platdata mini2440_led4_pdata __initdata = {
|
||||
.name = "led4",
|
||||
.gpio = S3C2410_GPB(8),
|
||||
.flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
|
||||
.def_trigger = "",
|
||||
};
|
||||
|
||||
static struct s3c24xx_led_platdata mini2440_led_backlight_pdata __initdata = {
|
||||
.name = "backlight",
|
||||
.gpio = S3C2410_GPG(4),
|
||||
.def_trigger = "backlight",
|
||||
};
|
||||
|
||||
static struct platform_device mini2440_led1 __initdata = {
|
||||
.name = "s3c24xx_led",
|
||||
.id = 1,
|
||||
.dev = {
|
||||
.platform_data = &mini2440_led1_pdata,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device mini2440_led2 __initdata = {
|
||||
.name = "s3c24xx_led",
|
||||
.id = 2,
|
||||
.dev = {
|
||||
.platform_data = &mini2440_led2_pdata,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device mini2440_led3 __initdata = {
|
||||
.name = "s3c24xx_led",
|
||||
.id = 3,
|
||||
.dev = {
|
||||
.platform_data = &mini2440_led3_pdata,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device mini2440_led4 __initdata = {
|
||||
.name = "s3c24xx_led",
|
||||
.id = 4,
|
||||
.dev = {
|
||||
.platform_data = &mini2440_led4_pdata,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device mini2440_led_backlight __initdata = {
|
||||
.name = "s3c24xx_led",
|
||||
.id = 5,
|
||||
.dev = {
|
||||
.platform_data = &mini2440_led_backlight_pdata,
|
||||
},
|
||||
};
|
||||
|
||||
/* AUDIO */
|
||||
|
||||
static struct s3c24xx_uda134x_platform_data mini2440_audio_pins __initdata = {
|
||||
.l3_clk = S3C2410_GPB(4),
|
||||
.l3_mode = S3C2410_GPB(2),
|
||||
.l3_data = S3C2410_GPB(3),
|
||||
.model = UDA134X_UDA1341
|
||||
};
|
||||
|
||||
static struct platform_device mini2440_audio __initdata = {
|
||||
.name = "s3c24xx_uda134x",
|
||||
.id = 0,
|
||||
.dev = {
|
||||
.platform_data = &mini2440_audio_pins,
|
||||
},
|
||||
};
|
||||
|
||||
/*
|
||||
* I2C devices
|
||||
*/
|
||||
static struct at24_platform_data at24c08 = {
|
||||
.byte_len = SZ_8K / 8,
|
||||
.page_size = 16,
|
||||
};
|
||||
|
||||
static struct i2c_board_info mini2440_i2c_devs[] __initdata = {
|
||||
{
|
||||
I2C_BOARD_INFO("24c08", 0x50),
|
||||
.platform_data = &at24c08,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device *mini2440_devices[] __initdata = {
|
||||
&s3c_device_usb,
|
||||
&s3c_device_wdt,
|
||||
/* &s3c_device_adc,*/ /* ADC doesn't like living with touchscreen ! */
|
||||
&s3c_device_i2c0,
|
||||
&s3c_device_rtc,
|
||||
&s3c_device_usbgadget,
|
||||
&mini2440_device_eth,
|
||||
&mini2440_led1,
|
||||
&mini2440_led2,
|
||||
&mini2440_led3,
|
||||
&mini2440_led4,
|
||||
&mini2440_button_device,
|
||||
&s3c_device_nand,
|
||||
&s3c_device_sdi,
|
||||
&s3c_device_iis,
|
||||
&mini2440_audio,
|
||||
/* &s3c_device_timer[0],*/ /* buzzer pwm, no API for it */
|
||||
/* remaining devices are optional */
|
||||
};
|
||||
|
||||
static void __init mini2440_map_io(void)
|
||||
{
|
||||
s3c24xx_init_io(mini2440_iodesc, ARRAY_SIZE(mini2440_iodesc));
|
||||
s3c24xx_init_clocks(12000000);
|
||||
s3c24xx_init_uarts(mini2440_uartcfgs, ARRAY_SIZE(mini2440_uartcfgs));
|
||||
|
||||
s3c_device_nand.dev.platform_data = &mini2440_nand_info;
|
||||
s3c_device_sdi.dev.platform_data = &mini2440_mmc_cfg;
|
||||
}
|
||||
|
||||
/*
|
||||
* mini2440_features string
|
||||
*
|
||||
* t = Touchscreen present
|
||||
* b = backlight control
|
||||
* c = camera [TODO]
|
||||
* 0-9 LCD configuration
|
||||
*
|
||||
*/
|
||||
static char mini2440_features_str[12] __initdata = "0tb";
|
||||
|
||||
static int __init mini2440_features_setup(char *str)
|
||||
{
|
||||
if (str)
|
||||
strlcpy(mini2440_features_str, str, sizeof(mini2440_features_str));
|
||||
return 1;
|
||||
}
|
||||
|
||||
__setup("mini2440=", mini2440_features_setup);
|
||||
|
||||
#define FEATURE_SCREEN (1 << 0)
|
||||
#define FEATURE_BACKLIGHT (1 << 1)
|
||||
#define FEATURE_TOUCH (1 << 2)
|
||||
#define FEATURE_CAMERA (1 << 3)
|
||||
|
||||
struct mini2440_features_t {
|
||||
int count;
|
||||
int done;
|
||||
int lcd_index;
|
||||
struct platform_device *optional[8];
|
||||
};
|
||||
|
||||
static void mini2440_parse_features(
|
||||
struct mini2440_features_t * features,
|
||||
const char * features_str )
|
||||
{
|
||||
const char * fp = features_str;
|
||||
|
||||
features->count = 0;
|
||||
features->done = 0;
|
||||
features->lcd_index = -1;
|
||||
|
||||
while (*fp) {
|
||||
char f = *fp++;
|
||||
|
||||
switch (f) {
|
||||
case '0'...'9': /* tft screen */
|
||||
if (features->done & FEATURE_SCREEN) {
|
||||
printk(KERN_INFO "MINI2440: '%c' ignored, "
|
||||
"screen type already set\n", f);
|
||||
} else {
|
||||
int li = f - '0';
|
||||
if (li >= ARRAY_SIZE(mini2440_lcd_cfg))
|
||||
printk(KERN_INFO "MINI2440: "
|
||||
"'%c' out of range LCD mode\n", f);
|
||||
else {
|
||||
features->optional[features->count++] =
|
||||
&s3c_device_lcd;
|
||||
features->lcd_index = li;
|
||||
}
|
||||
}
|
||||
features->done |= FEATURE_SCREEN;
|
||||
break;
|
||||
case 'b':
|
||||
if (features->done & FEATURE_BACKLIGHT)
|
||||
printk(KERN_INFO "MINI2440: '%c' ignored, "
|
||||
"backlight already set\n", f);
|
||||
else {
|
||||
features->optional[features->count++] =
|
||||
&mini2440_led_backlight;
|
||||
}
|
||||
features->done |= FEATURE_BACKLIGHT;
|
||||
break;
|
||||
case 't':
|
||||
printk(KERN_INFO "MINI2440: '%c' ignored, "
|
||||
"touchscreen not compiled in\n", f);
|
||||
break;
|
||||
case 'c':
|
||||
if (features->done & FEATURE_CAMERA)
|
||||
printk(KERN_INFO "MINI2440: '%c' ignored, "
|
||||
"camera already registered\n", f);
|
||||
else
|
||||
features->optional[features->count++] =
|
||||
&s3c_device_camif;
|
||||
features->done |= FEATURE_CAMERA;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void __init mini2440_init(void)
|
||||
{
|
||||
struct mini2440_features_t features = { 0 };
|
||||
int i;
|
||||
|
||||
printk(KERN_INFO "MINI2440: Option string mini2440=%s\n",
|
||||
mini2440_features_str);
|
||||
|
||||
/* Parse the feature string */
|
||||
mini2440_parse_features(&features, mini2440_features_str);
|
||||
|
||||
/* turn LCD on */
|
||||
s3c2410_gpio_cfgpin(S3C2410_GPC(0), S3C2410_GPC0_LEND);
|
||||
|
||||
/* Turn the backlight early on */
|
||||
s3c2410_gpio_setpin(S3C2410_GPG(4), 1);
|
||||
s3c2410_gpio_cfgpin(S3C2410_GPG(4), S3C2410_GPIO_OUTPUT);
|
||||
|
||||
/* remove pullup on optional PWM backlight -- unused on 3.5 and 7"s */
|
||||
s3c2410_gpio_pullup(S3C2410_GPB(1), 0);
|
||||
s3c2410_gpio_setpin(S3C2410_GPB(1), 0);
|
||||
s3c2410_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPIO_INPUT);
|
||||
|
||||
/* Make sure the D+ pullup pin is output */
|
||||
s3c2410_gpio_cfgpin(S3C2410_GPC(5), S3C2410_GPIO_OUTPUT);
|
||||
|
||||
/* mark the key as input, without pullups (there is one on the board) */
|
||||
for (i = 0; i < ARRAY_SIZE(mini2440_buttons); i++) {
|
||||
s3c2410_gpio_pullup(mini2440_buttons[i].gpio, 0);
|
||||
s3c2410_gpio_cfgpin(mini2440_buttons[i].gpio,
|
||||
S3C2410_GPIO_INPUT);
|
||||
}
|
||||
if (features.lcd_index != -1) {
|
||||
int li;
|
||||
|
||||
mini2440_fb_info.displays =
|
||||
&mini2440_lcd_cfg[features.lcd_index];
|
||||
|
||||
printk(KERN_INFO "MINI2440: LCD");
|
||||
for (li = 0; li < ARRAY_SIZE(mini2440_lcd_cfg); li++)
|
||||
if (li == features.lcd_index)
|
||||
printk(" [%d:%dx%d]", li,
|
||||
mini2440_lcd_cfg[li].width,
|
||||
mini2440_lcd_cfg[li].height);
|
||||
else
|
||||
printk(" %d:%dx%d", li,
|
||||
mini2440_lcd_cfg[li].width,
|
||||
mini2440_lcd_cfg[li].height);
|
||||
printk("\n");
|
||||
s3c24xx_fb_set_platdata(&mini2440_fb_info);
|
||||
}
|
||||
s3c24xx_udc_set_platdata(&mini2440_udc_cfg);
|
||||
s3c_i2c0_set_platdata(NULL);
|
||||
i2c_register_board_info(0, mini2440_i2c_devs,
|
||||
ARRAY_SIZE(mini2440_i2c_devs));
|
||||
|
||||
platform_add_devices(mini2440_devices, ARRAY_SIZE(mini2440_devices));
|
||||
|
||||
if (features.count) /* the optional features */
|
||||
platform_add_devices(features.optional, features.count);
|
||||
|
||||
}
|
||||
|
||||
|
||||
MACHINE_START(MINI2440, "MINI2440")
|
||||
/* Maintainer: Michel Pollet <buserror@gmail.com> */
|
||||
.phys_io = S3C2410_PA_UART,
|
||||
.io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
|
||||
.boot_params = S3C2410_SDRAM_PA + 0x100,
|
||||
.map_io = mini2440_map_io,
|
||||
.init_machine = mini2440_init,
|
||||
.init_irq = s3c24xx_init_irq,
|
||||
.timer = &s3c24xx_timer,
|
||||
MACHINE_END
|
||||
@ -24,6 +24,18 @@ config SMDK2440_CPU2442
|
||||
depends on ARCH_S3C2440
|
||||
select CPU_S3C2442
|
||||
|
||||
config MACH_NEO1973_GTA02
|
||||
bool "Openmoko GTA02 / Freerunner phone"
|
||||
select CPU_S3C2442
|
||||
select MFD_PCF50633
|
||||
select PCF50633_GPIO
|
||||
select I2C
|
||||
select POWER_SUPPLY
|
||||
select MACH_NEO1973
|
||||
select S3C2410_PWM
|
||||
help
|
||||
Say Y here if you are using the Openmoko GTA02 / Freerunner GSM Phone
|
||||
|
||||
|
||||
endmenu
|
||||
|
||||
|
||||
@ -12,5 +12,7 @@ obj- :=
|
||||
obj-$(CONFIG_CPU_S3C2442) += s3c2442.o
|
||||
obj-$(CONFIG_CPU_S3C2442) += clock.o
|
||||
|
||||
obj-$(CONFIG_MACH_NEO1973_GTA02) += mach-gta02.o
|
||||
|
||||
# Machine support
|
||||
|
||||
|
||||
84
arch/arm/mach-s3c2442/include/mach/gta02.h
Normal file
84
arch/arm/mach-s3c2442/include/mach/gta02.h
Normal file
@ -0,0 +1,84 @@
|
||||
#ifndef _GTA02_H
|
||||
#define _GTA02_H
|
||||
|
||||
#include <mach/regs-gpio.h>
|
||||
|
||||
/* Different hardware revisions, passed in ATAG_REVISION by u-boot */
|
||||
#define GTA02v1_SYSTEM_REV 0x00000310
|
||||
#define GTA02v2_SYSTEM_REV 0x00000320
|
||||
#define GTA02v3_SYSTEM_REV 0x00000330
|
||||
#define GTA02v4_SYSTEM_REV 0x00000340
|
||||
#define GTA02v5_SYSTEM_REV 0x00000350
|
||||
/* since A7 is basically same as A6, we use A6 PCB ID */
|
||||
#define GTA02v6_SYSTEM_REV 0x00000360
|
||||
|
||||
#define GTA02_GPIO_n3DL_GSM S3C2410_GPA(13) /* v1 + v2 + v3 only */
|
||||
|
||||
#define GTA02_GPIO_PWR_LED1 S3C2410_GPB(0)
|
||||
#define GTA02_GPIO_PWR_LED2 S3C2410_GPB(1)
|
||||
#define GTA02_GPIO_AUX_LED S3C2410_GPB(2)
|
||||
#define GTA02_GPIO_VIBRATOR_ON S3C2410_GPB(3)
|
||||
#define GTA02_GPIO_MODEM_RST S3C2410_GPB(5)
|
||||
#define GTA02_GPIO_BT_EN S3C2410_GPB(6)
|
||||
#define GTA02_GPIO_MODEM_ON S3C2410_GPB(7)
|
||||
#define GTA02_GPIO_EXTINT8 S3C2410_GPB(8)
|
||||
#define GTA02_GPIO_USB_PULLUP S3C2410_GPB(9)
|
||||
|
||||
#define GTA02_GPIO_PIO5 S3C2410_GPC(5) /* v3 + v4 only */
|
||||
|
||||
#define GTA02v3_GPIO_nG1_CS S3C2410_GPD(12) /* v3 + v4 only */
|
||||
#define GTA02v3_GPIO_nG2_CS S3C2410_GPD(13) /* v3 + v4 only */
|
||||
#define GTA02v5_GPIO_HDQ S3C2410_GPD(14) /* v5 + */
|
||||
|
||||
#define GTA02_GPIO_nG1_INT S3C2410_GPF(0)
|
||||
#define GTA02_GPIO_IO1 S3C2410_GPF(1)
|
||||
#define GTA02_GPIO_PIO_2 S3C2410_GPF(2) /* v2 + v3 + v4 only */
|
||||
#define GTA02_GPIO_JACK_INSERT S3C2410_GPF(4)
|
||||
#define GTA02_GPIO_WLAN_GPIO1 S3C2410_GPF(5) /* v2 + v3 + v4 only */
|
||||
#define GTA02_GPIO_AUX_KEY S3C2410_GPF(6)
|
||||
#define GTA02_GPIO_HOLD_KEY S3C2410_GPF(7)
|
||||
|
||||
#define GTA02_GPIO_3D_IRQ S3C2410_GPG(4)
|
||||
#define GTA02v2_GPIO_nG2_INT S3C2410_GPG(8) /* v2 + v3 + v4 only */
|
||||
#define GTA02v3_GPIO_nUSB_OC S3C2410_GPG(9) /* v3 + v4 only */
|
||||
#define GTA02v3_GPIO_nUSB_FLT S3C2410_GPG(10) /* v3 + v4 only */
|
||||
#define GTA02v3_GPIO_nGSM_OC S3C2410_GPG(11) /* v3 + v4 only */
|
||||
|
||||
#define GTA02_GPIO_AMP_SHUT S3C2440_GPJ1 /* v2 + v3 + v4 only */
|
||||
#define GTA02v1_GPIO_WLAN_GPIO10 S3C2440_GPJ2
|
||||
#define GTA02_GPIO_HP_IN S3C2440_GPJ2 /* v2 + v3 + v4 only */
|
||||
#define GTA02_GPIO_INT0 S3C2440_GPJ3 /* v2 + v3 + v4 only */
|
||||
#define GTA02_GPIO_nGSM_EN S3C2440_GPJ4
|
||||
#define GTA02_GPIO_3D_RESET S3C2440_GPJ5
|
||||
#define GTA02_GPIO_nDL_GSM S3C2440_GPJ6 /* v4 + v5 only */
|
||||
#define GTA02_GPIO_WLAN_GPIO0 S3C2440_GPJ7
|
||||
#define GTA02v1_GPIO_BAT_ID S3C2440_GPJ8
|
||||
#define GTA02_GPIO_KEEPACT S3C2440_GPJ8
|
||||
#define GTA02v1_GPIO_HP_IN S3C2440_GPJ10
|
||||
#define GTA02_CHIP_PWD S3C2440_GPJ11 /* v2 + v3 + v4 only */
|
||||
#define GTA02_GPIO_nWLAN_RESET S3C2440_GPJ12 /* v2 + v3 + v4 only */
|
||||
|
||||
#define GTA02_IRQ_GSENSOR_1 IRQ_EINT0
|
||||
#define GTA02_IRQ_MODEM IRQ_EINT1
|
||||
#define GTA02_IRQ_PIO_2 IRQ_EINT2 /* v2 + v3 + v4 only */
|
||||
#define GTA02_IRQ_nJACK_INSERT IRQ_EINT4
|
||||
#define GTA02_IRQ_WLAN_GPIO1 IRQ_EINT5
|
||||
#define GTA02_IRQ_AUX IRQ_EINT6
|
||||
#define GTA02_IRQ_nHOLD IRQ_EINT7
|
||||
#define GTA02_IRQ_PCF50633 IRQ_EINT9
|
||||
#define GTA02_IRQ_3D IRQ_EINT12
|
||||
#define GTA02_IRQ_GSENSOR_2 IRQ_EINT16 /* v2 + v3 + v4 only */
|
||||
#define GTA02v3_IRQ_nUSB_OC IRQ_EINT17 /* v3 + v4 only */
|
||||
#define GTA02v3_IRQ_nUSB_FLT IRQ_EINT18 /* v3 + v4 only */
|
||||
#define GTA02v3_IRQ_nGSM_OC IRQ_EINT19 /* v3 + v4 only */
|
||||
|
||||
/* returns 00 000 on GTA02 A5 and earlier, A6 returns 01 001 */
|
||||
#define GTA02_PCB_ID1_0 S3C2410_GPC(13)
|
||||
#define GTA02_PCB_ID1_1 S3C2410_GPC(15)
|
||||
#define GTA02_PCB_ID1_2 S3C2410_GPD(0)
|
||||
#define GTA02_PCB_ID2_0 S3C2410_GPD(3)
|
||||
#define GTA02_PCB_ID2_1 S3C2410_GPD(4)
|
||||
|
||||
int gta02_get_pcb_revision(void);
|
||||
|
||||
#endif /* _GTA02_H */
|
||||
646
arch/arm/mach-s3c2442/mach-gta02.c
Normal file
646
arch/arm/mach-s3c2442/mach-gta02.c
Normal file
@ -0,0 +1,646 @@
|
||||
/*
|
||||
* linux/arch/arm/mach-s3c2442/mach-gta02.c
|
||||
*
|
||||
* S3C2442 Machine Support for Openmoko GTA02 / FreeRunner.
|
||||
*
|
||||
* Copyright (C) 2006-2009 by Openmoko, Inc.
|
||||
* Authors: Harald Welte <laforge@openmoko.org>
|
||||
* Andy Green <andy@openmoko.org>
|
||||
* Werner Almesberger <werner@openmoko.org>
|
||||
* All rights reserved.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* 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., 59 Temple Place, Suite 330, Boston,
|
||||
* MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/list.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/timer.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/gpio.h>
|
||||
#include <linux/workqueue.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/serial_core.h>
|
||||
#include <linux/spi/spi.h>
|
||||
|
||||
#include <linux/mmc/host.h>
|
||||
|
||||
#include <linux/mtd/mtd.h>
|
||||
#include <linux/mtd/nand.h>
|
||||
#include <linux/mtd/nand_ecc.h>
|
||||
#include <linux/mtd/partitions.h>
|
||||
#include <linux/mtd/physmap.h>
|
||||
#include <linux/io.h>
|
||||
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/backlight.h>
|
||||
#include <linux/regulator/machine.h>
|
||||
|
||||
#include <linux/mfd/pcf50633/core.h>
|
||||
#include <linux/mfd/pcf50633/mbc.h>
|
||||
#include <linux/mfd/pcf50633/adc.h>
|
||||
#include <linux/mfd/pcf50633/gpio.h>
|
||||
#include <linux/mfd/pcf50633/pmic.h>
|
||||
|
||||
#include <asm/mach/arch.h>
|
||||
#include <asm/mach/map.h>
|
||||
#include <asm/mach/irq.h>
|
||||
|
||||
#include <asm/irq.h>
|
||||
#include <asm/mach-types.h>
|
||||
|
||||
#include <mach/regs-irq.h>
|
||||
#include <mach/regs-gpio.h>
|
||||
#include <mach/regs-gpioj.h>
|
||||
#include <mach/fb.h>
|
||||
|
||||
#include <mach/spi.h>
|
||||
#include <mach/spi-gpio.h>
|
||||
#include <plat/usb-control.h>
|
||||
#include <mach/regs-mem.h>
|
||||
#include <mach/hardware.h>
|
||||
|
||||
#include <mach/gta02.h>
|
||||
|
||||
#include <plat/regs-serial.h>
|
||||
#include <plat/nand.h>
|
||||
#include <plat/devs.h>
|
||||
#include <plat/cpu.h>
|
||||
#include <plat/pm.h>
|
||||
#include <plat/udc.h>
|
||||
#include <plat/gpio-cfg.h>
|
||||
#include <plat/iic.h>
|
||||
|
||||
static struct pcf50633 *gta02_pcf;
|
||||
|
||||
/*
|
||||
* This gets called every 1ms when we paniced.
|
||||
*/
|
||||
|
||||
static long gta02_panic_blink(long count)
|
||||
{
|
||||
long delay = 0;
|
||||
static long last_blink;
|
||||
static char led;
|
||||
|
||||
/* Fast blink: 200ms period. */
|
||||
if (count - last_blink < 100)
|
||||
return 0;
|
||||
|
||||
led ^= 1;
|
||||
gpio_direction_output(GTA02_GPIO_AUX_LED, led);
|
||||
|
||||
last_blink = count;
|
||||
|
||||
return delay;
|
||||
}
|
||||
|
||||
|
||||
static struct map_desc gta02_iodesc[] __initdata = {
|
||||
{
|
||||
.virtual = 0xe0000000,
|
||||
.pfn = __phys_to_pfn(S3C2410_CS3 + 0x01000000),
|
||||
.length = SZ_1M,
|
||||
.type = MT_DEVICE
|
||||
},
|
||||
};
|
||||
|
||||
#define UCON (S3C2410_UCON_DEFAULT | S3C2443_UCON_RXERR_IRQEN)
|
||||
#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
|
||||
#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
|
||||
|
||||
static struct s3c2410_uartcfg gta02_uartcfgs[] = {
|
||||
[0] = {
|
||||
.hwport = 0,
|
||||
.flags = 0,
|
||||
.ucon = UCON,
|
||||
.ulcon = ULCON,
|
||||
.ufcon = UFCON,
|
||||
},
|
||||
[1] = {
|
||||
.hwport = 1,
|
||||
.flags = 0,
|
||||
.ucon = UCON,
|
||||
.ulcon = ULCON,
|
||||
.ufcon = UFCON,
|
||||
},
|
||||
[2] = {
|
||||
.hwport = 2,
|
||||
.flags = 0,
|
||||
.ucon = UCON,
|
||||
.ulcon = ULCON,
|
||||
.ufcon = UFCON,
|
||||
},
|
||||
};
|
||||
|
||||
#ifdef CONFIG_CHARGER_PCF50633
|
||||
/*
|
||||
* On GTA02 the 1A charger features a 48K resistor to 0V on the ID pin.
|
||||
* We use this to recognize that we can pull 1A from the USB socket.
|
||||
*
|
||||
* These constants are the measured pcf50633 ADC levels with the 1A
|
||||
* charger / 48K resistor, and with no pulldown resistor.
|
||||
*/
|
||||
|
||||
#define ADC_NOM_CHG_DETECT_1A 6
|
||||
#define ADC_NOM_CHG_DETECT_USB 43
|
||||
|
||||
static void
|
||||
gta02_configure_pmu_for_charger(struct pcf50633 *pcf, void *unused, int res)
|
||||
{
|
||||
int ma;
|
||||
|
||||
/* Interpret charger type */
|
||||
if (res < ((ADC_NOM_CHG_DETECT_USB + ADC_NOM_CHG_DETECT_1A) / 2)) {
|
||||
|
||||
/*
|
||||
* Sanity - stop GPO driving out now that we have a 1A charger
|
||||
* GPO controls USB Host power generation on GTA02
|
||||
*/
|
||||
pcf50633_gpio_set(pcf, PCF50633_GPO, 0);
|
||||
|
||||
ma = 1000;
|
||||
} else
|
||||
ma = 100;
|
||||
|
||||
pcf50633_mbc_usb_curlim_set(pcf, ma);
|
||||
}
|
||||
|
||||
static struct delayed_work gta02_charger_work;
|
||||
static int gta02_usb_vbus_draw;
|
||||
|
||||
static void gta02_charger_worker(struct work_struct *work)
|
||||
{
|
||||
if (gta02_usb_vbus_draw) {
|
||||
pcf50633_mbc_usb_curlim_set(gta02_pcf, gta02_usb_vbus_draw);
|
||||
return;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PCF50633_ADC
|
||||
pcf50633_adc_async_read(gta02_pcf,
|
||||
PCF50633_ADCC1_MUX_ADCIN1,
|
||||
PCF50633_ADCC1_AVERAGE_16,
|
||||
gta02_configure_pmu_for_charger,
|
||||
NULL);
|
||||
#else
|
||||
/*
|
||||
* If the PCF50633 ADC is disabled we fallback to a
|
||||
* 100mA limit for safety.
|
||||
*/
|
||||
pcf50633_mbc_usb_curlim_set(pcf, 100);
|
||||
#endif
|
||||
}
|
||||
|
||||
#define GTA02_CHARGER_CONFIGURE_TIMEOUT ((3000 * HZ) / 1000)
|
||||
|
||||
static void gta02_pmu_event_callback(struct pcf50633 *pcf, int irq)
|
||||
{
|
||||
if (irq == PCF50633_IRQ_USBINS) {
|
||||
schedule_delayed_work(>a02_charger_work,
|
||||
GTA02_CHARGER_CONFIGURE_TIMEOUT);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
if (irq == PCF50633_IRQ_USBREM) {
|
||||
cancel_delayed_work_sync(>a02_charger_work);
|
||||
gta02_usb_vbus_draw = 0;
|
||||
}
|
||||
}
|
||||
|
||||
static void gta02_udc_vbus_draw(unsigned int ma)
|
||||
{
|
||||
if (!gta02_pcf)
|
||||
return;
|
||||
|
||||
gta02_usb_vbus_draw = ma;
|
||||
|
||||
schedule_delayed_work(>a02_charger_work,
|
||||
GTA02_CHARGER_CONFIGURE_TIMEOUT);
|
||||
}
|
||||
#else /* !CONFIG_CHARGER_PCF50633 */
|
||||
#define gta02_pmu_event_callback NULL
|
||||
#define gta02_udc_vbus_draw NULL
|
||||
#endif
|
||||
|
||||
/*
|
||||
* This is called when pc50633 is probed, unfortunately quite late in the
|
||||
* day since it is an I2C bus device. Here we can belatedly define some
|
||||
* platform devices with the advantage that we can mark the pcf50633 as the
|
||||
* parent. This makes them get suspended and resumed with their parent
|
||||
* the pcf50633 still around.
|
||||
*/
|
||||
|
||||
static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf);
|
||||
|
||||
|
||||
static char *gta02_batteries[] = {
|
||||
"battery",
|
||||
};
|
||||
|
||||
struct pcf50633_platform_data gta02_pcf_pdata = {
|
||||
.resumers = {
|
||||
[0] = PCF50633_INT1_USBINS |
|
||||
PCF50633_INT1_USBREM |
|
||||
PCF50633_INT1_ALARM,
|
||||
[1] = PCF50633_INT2_ONKEYF,
|
||||
[2] = PCF50633_INT3_ONKEY1S,
|
||||
[3] = PCF50633_INT4_LOWSYS |
|
||||
PCF50633_INT4_LOWBAT |
|
||||
PCF50633_INT4_HIGHTMP,
|
||||
},
|
||||
|
||||
.batteries = gta02_batteries,
|
||||
.num_batteries = ARRAY_SIZE(gta02_batteries),
|
||||
.reg_init_data = {
|
||||
[PCF50633_REGULATOR_AUTO] = {
|
||||
.constraints = {
|
||||
.min_uV = 3300000,
|
||||
.max_uV = 3300000,
|
||||
.valid_modes_mask = REGULATOR_MODE_NORMAL,
|
||||
.always_on = 1,
|
||||
.apply_uV = 1,
|
||||
.state_mem = {
|
||||
.enabled = 1,
|
||||
},
|
||||
},
|
||||
},
|
||||
[PCF50633_REGULATOR_DOWN1] = {
|
||||
.constraints = {
|
||||
.min_uV = 1300000,
|
||||
.max_uV = 1600000,
|
||||
.valid_modes_mask = REGULATOR_MODE_NORMAL,
|
||||
.always_on = 1,
|
||||
.apply_uV = 1,
|
||||
},
|
||||
},
|
||||
[PCF50633_REGULATOR_DOWN2] = {
|
||||
.constraints = {
|
||||
.min_uV = 1800000,
|
||||
.max_uV = 1800000,
|
||||
.valid_modes_mask = REGULATOR_MODE_NORMAL,
|
||||
.apply_uV = 1,
|
||||
.always_on = 1,
|
||||
.state_mem = {
|
||||
.enabled = 1,
|
||||
},
|
||||
},
|
||||
},
|
||||
[PCF50633_REGULATOR_HCLDO] = {
|
||||
.constraints = {
|
||||
.min_uV = 2000000,
|
||||
.max_uV = 3300000,
|
||||
.valid_modes_mask = REGULATOR_MODE_NORMAL,
|
||||
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
|
||||
.always_on = 1,
|
||||
},
|
||||
},
|
||||
[PCF50633_REGULATOR_LDO1] = {
|
||||
.constraints = {
|
||||
.min_uV = 3300000,
|
||||
.max_uV = 3300000,
|
||||
.valid_modes_mask = REGULATOR_MODE_NORMAL,
|
||||
.apply_uV = 1,
|
||||
.state_mem = {
|
||||
.enabled = 0,
|
||||
},
|
||||
},
|
||||
},
|
||||
[PCF50633_REGULATOR_LDO2] = {
|
||||
.constraints = {
|
||||
.min_uV = 3300000,
|
||||
.max_uV = 3300000,
|
||||
.valid_modes_mask = REGULATOR_MODE_NORMAL,
|
||||
.apply_uV = 1,
|
||||
},
|
||||
},
|
||||
[PCF50633_REGULATOR_LDO3] = {
|
||||
.constraints = {
|
||||
.min_uV = 3000000,
|
||||
.max_uV = 3000000,
|
||||
.valid_modes_mask = REGULATOR_MODE_NORMAL,
|
||||
.apply_uV = 1,
|
||||
},
|
||||
},
|
||||
[PCF50633_REGULATOR_LDO4] = {
|
||||
.constraints = {
|
||||
.min_uV = 3200000,
|
||||
.max_uV = 3200000,
|
||||
.valid_modes_mask = REGULATOR_MODE_NORMAL,
|
||||
.apply_uV = 1,
|
||||
},
|
||||
},
|
||||
[PCF50633_REGULATOR_LDO5] = {
|
||||
.constraints = {
|
||||
.min_uV = 3000000,
|
||||
.max_uV = 3000000,
|
||||
.valid_modes_mask = REGULATOR_MODE_NORMAL,
|
||||
.apply_uV = 1,
|
||||
.state_mem = {
|
||||
.enabled = 1,
|
||||
},
|
||||
},
|
||||
},
|
||||
[PCF50633_REGULATOR_LDO6] = {
|
||||
.constraints = {
|
||||
.min_uV = 3000000,
|
||||
.max_uV = 3000000,
|
||||
.valid_modes_mask = REGULATOR_MODE_NORMAL,
|
||||
},
|
||||
},
|
||||
[PCF50633_REGULATOR_MEMLDO] = {
|
||||
.constraints = {
|
||||
.min_uV = 1800000,
|
||||
.max_uV = 1800000,
|
||||
.valid_modes_mask = REGULATOR_MODE_NORMAL,
|
||||
.state_mem = {
|
||||
.enabled = 1,
|
||||
},
|
||||
},
|
||||
},
|
||||
|
||||
},
|
||||
.probe_done = gta02_pmu_attach_child_devices,
|
||||
.mbc_event_callback = gta02_pmu_event_callback,
|
||||
};
|
||||
|
||||
|
||||
/* NOR Flash. */
|
||||
|
||||
#define GTA02_FLASH_BASE 0x18000000 /* GCS3 */
|
||||
#define GTA02_FLASH_SIZE 0x200000 /* 2MBytes */
|
||||
|
||||
static struct physmap_flash_data gta02_nor_flash_data = {
|
||||
.width = 2,
|
||||
};
|
||||
|
||||
static struct resource gta02_nor_flash_resource = {
|
||||
.start = GTA02_FLASH_BASE,
|
||||
.end = GTA02_FLASH_BASE + GTA02_FLASH_SIZE - 1,
|
||||
.flags = IORESOURCE_MEM,
|
||||
};
|
||||
|
||||
static struct platform_device gta02_nor_flash = {
|
||||
.name = "physmap-flash",
|
||||
.id = 0,
|
||||
.dev = {
|
||||
.platform_data = >a02_nor_flash_data,
|
||||
},
|
||||
.resource = >a02_nor_flash_resource,
|
||||
.num_resources = 1,
|
||||
};
|
||||
|
||||
|
||||
struct platform_device s3c24xx_pwm_device = {
|
||||
.name = "s3c24xx_pwm",
|
||||
.num_resources = 0,
|
||||
};
|
||||
|
||||
static struct i2c_board_info gta02_i2c_devs[] __initdata = {
|
||||
{
|
||||
I2C_BOARD_INFO("pcf50633", 0x73),
|
||||
.irq = GTA02_IRQ_PCF50633,
|
||||
.platform_data = >a02_pcf_pdata,
|
||||
},
|
||||
{
|
||||
I2C_BOARD_INFO("wm8753", 0x1a),
|
||||
},
|
||||
};
|
||||
|
||||
static struct s3c2410_nand_set gta02_nand_sets[] = {
|
||||
[0] = {
|
||||
/*
|
||||
* This name is also hard-coded in the boot loaders, so
|
||||
* changing it would would require all users to upgrade
|
||||
* their boot loaders, some of which are stored in a NOR
|
||||
* that is considered to be immutable.
|
||||
*/
|
||||
.name = "neo1973-nand",
|
||||
.nr_chips = 1,
|
||||
.use_bbt = 1,
|
||||
.force_soft_ecc = 1,
|
||||
},
|
||||
};
|
||||
|
||||
/*
|
||||
* Choose a set of timings derived from S3C@2442B MCP54
|
||||
* data sheet (K5D2G13ACM-D075 MCP Memory).
|
||||
*/
|
||||
|
||||
static struct s3c2410_platform_nand gta02_nand_info = {
|
||||
.tacls = 0,
|
||||
.twrph0 = 25,
|
||||
.twrph1 = 15,
|
||||
.nr_sets = ARRAY_SIZE(gta02_nand_sets),
|
||||
.sets = gta02_nand_sets,
|
||||
};
|
||||
|
||||
|
||||
static void gta02_udc_command(enum s3c2410_udc_cmd_e cmd)
|
||||
{
|
||||
switch (cmd) {
|
||||
case S3C2410_UDC_P_ENABLE:
|
||||
pr_debug("%s S3C2410_UDC_P_ENABLE\n", __func__);
|
||||
gpio_direction_output(GTA02_GPIO_USB_PULLUP, 1);
|
||||
break;
|
||||
case S3C2410_UDC_P_DISABLE:
|
||||
pr_debug("%s S3C2410_UDC_P_DISABLE\n", __func__);
|
||||
gpio_direction_output(GTA02_GPIO_USB_PULLUP, 0);
|
||||
break;
|
||||
case S3C2410_UDC_P_RESET:
|
||||
pr_debug("%s S3C2410_UDC_P_RESET\n", __func__);
|
||||
/* FIXME: Do something here. */
|
||||
}
|
||||
}
|
||||
|
||||
/* Get PMU to set USB current limit accordingly. */
|
||||
static struct s3c2410_udc_mach_info gta02_udc_cfg = {
|
||||
.vbus_draw = gta02_udc_vbus_draw,
|
||||
.udc_command = gta02_udc_command,
|
||||
|
||||
};
|
||||
|
||||
|
||||
|
||||
static void gta02_bl_set_intensity(int intensity)
|
||||
{
|
||||
struct pcf50633 *pcf = gta02_pcf;
|
||||
int old_intensity = pcf50633_reg_read(pcf, PCF50633_REG_LEDOUT);
|
||||
|
||||
/* We map 8-bit intensity to 6-bit intensity in hardware. */
|
||||
intensity >>= 2;
|
||||
|
||||
/*
|
||||
* This can happen during, eg, print of panic on blanked console,
|
||||
* but we can't service i2c without interrupts active, so abort.
|
||||
*/
|
||||
if (in_atomic()) {
|
||||
printk(KERN_ERR "gta02_bl_set_intensity called while atomic\n");
|
||||
return;
|
||||
}
|
||||
|
||||
old_intensity = pcf50633_reg_read(pcf, PCF50633_REG_LEDOUT);
|
||||
if (intensity == old_intensity)
|
||||
return;
|
||||
|
||||
/* We can't do this anywhere else. */
|
||||
pcf50633_reg_write(pcf, PCF50633_REG_LEDDIM, 5);
|
||||
|
||||
if (!(pcf50633_reg_read(pcf, PCF50633_REG_LEDENA) & 3))
|
||||
old_intensity = 0;
|
||||
|
||||
/*
|
||||
* The PCF50633 cannot handle LEDOUT = 0 (datasheet p60)
|
||||
* if seen, you have to re-enable the LED unit.
|
||||
*/
|
||||
if (!intensity || !old_intensity)
|
||||
pcf50633_reg_write(pcf, PCF50633_REG_LEDENA, 0);
|
||||
|
||||
/* Illegal to set LEDOUT to 0. */
|
||||
if (!intensity)
|
||||
pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_LEDOUT, 0x3f, 2);
|
||||
else
|
||||
pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_LEDOUT, 0x3f,
|
||||
intensity);
|
||||
|
||||
if (intensity)
|
||||
pcf50633_reg_write(pcf, PCF50633_REG_LEDENA, 2);
|
||||
|
||||
}
|
||||
|
||||
static struct generic_bl_info gta02_bl_info = {
|
||||
.name = "gta02-bl",
|
||||
.max_intensity = 0xff,
|
||||
.default_intensity = 0xff,
|
||||
.set_bl_intensity = gta02_bl_set_intensity,
|
||||
};
|
||||
|
||||
static struct platform_device gta02_bl_dev = {
|
||||
.name = "generic-bl",
|
||||
.id = 1,
|
||||
.dev = {
|
||||
.platform_data = >a02_bl_info,
|
||||
},
|
||||
};
|
||||
|
||||
|
||||
|
||||
/* USB */
|
||||
static struct s3c2410_hcd_info gta02_usb_info = {
|
||||
.port[0] = {
|
||||
.flags = S3C_HCDFLG_USED,
|
||||
},
|
||||
.port[1] = {
|
||||
.flags = 0,
|
||||
},
|
||||
};
|
||||
|
||||
|
||||
static void __init gta02_map_io(void)
|
||||
{
|
||||
s3c24xx_init_io(gta02_iodesc, ARRAY_SIZE(gta02_iodesc));
|
||||
s3c24xx_init_clocks(12000000);
|
||||
s3c24xx_init_uarts(gta02_uartcfgs, ARRAY_SIZE(gta02_uartcfgs));
|
||||
}
|
||||
|
||||
|
||||
/* These are the guys that don't need to be children of PMU. */
|
||||
|
||||
static struct platform_device *gta02_devices[] __initdata = {
|
||||
&s3c_device_usb,
|
||||
&s3c_device_wdt,
|
||||
&s3c_device_sdi,
|
||||
&s3c_device_usbgadget,
|
||||
&s3c_device_nand,
|
||||
>a02_nor_flash,
|
||||
&s3c24xx_pwm_device,
|
||||
&s3c_device_iis,
|
||||
&s3c_device_i2c0,
|
||||
};
|
||||
|
||||
/* These guys DO need to be children of PMU. */
|
||||
|
||||
static struct platform_device *gta02_devices_pmu_children[] = {
|
||||
>a02_bl_dev,
|
||||
};
|
||||
|
||||
|
||||
/*
|
||||
* This is called when pc50633 is probed, quite late in the day since it is an
|
||||
* I2C bus device. Here we can define platform devices with the advantage that
|
||||
* we can mark the pcf50633 as the parent. This makes them get suspended and
|
||||
* resumed with their parent the pcf50633 still around. All devices whose
|
||||
* operation depends on something from pcf50633 must have this relationship
|
||||
* made explicit like this, or suspend and resume will become an unreliable
|
||||
* hellworld.
|
||||
*/
|
||||
|
||||
static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf)
|
||||
{
|
||||
int n;
|
||||
|
||||
/* Grab a copy of the now probed PMU pointer. */
|
||||
gta02_pcf = pcf;
|
||||
|
||||
for (n = 0; n < ARRAY_SIZE(gta02_devices_pmu_children); n++)
|
||||
gta02_devices_pmu_children[n]->dev.parent = pcf->dev;
|
||||
|
||||
platform_add_devices(gta02_devices_pmu_children,
|
||||
ARRAY_SIZE(gta02_devices_pmu_children));
|
||||
}
|
||||
|
||||
static void gta02_poweroff(void)
|
||||
{
|
||||
pcf50633_reg_set_bit_mask(gta02_pcf, PCF50633_REG_OOCSHDWN, 1, 1);
|
||||
}
|
||||
|
||||
static void __init gta02_machine_init(void)
|
||||
{
|
||||
/* Set the panic callback to make AUX LED blink at ~5Hz. */
|
||||
panic_blink = gta02_panic_blink;
|
||||
|
||||
s3c_pm_init();
|
||||
|
||||
#ifdef CONFIG_CHARGER_PCF50633
|
||||
INIT_DELAYED_WORK(>a02_charger_work, gta02_charger_worker);
|
||||
#endif
|
||||
|
||||
s3c_device_usb.dev.platform_data = >a02_usb_info;
|
||||
s3c_device_nand.dev.platform_data = >a02_nand_info;
|
||||
|
||||
s3c24xx_udc_set_platdata(>a02_udc_cfg);
|
||||
s3c_i2c0_set_platdata(NULL);
|
||||
|
||||
i2c_register_board_info(0, gta02_i2c_devs, ARRAY_SIZE(gta02_i2c_devs));
|
||||
|
||||
platform_add_devices(gta02_devices, ARRAY_SIZE(gta02_devices));
|
||||
pm_power_off = gta02_poweroff;
|
||||
}
|
||||
|
||||
|
||||
MACHINE_START(NEO1973_GTA02, "GTA02")
|
||||
/* Maintainer: Nelson Castillo <arhuaco@freaks-unidos.net> */
|
||||
.phys_io = S3C2410_PA_UART,
|
||||
.io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
|
||||
.boot_params = S3C2410_SDRAM_PA + 0x100,
|
||||
.map_io = gta02_map_io,
|
||||
.init_irq = s3c24xx_init_irq,
|
||||
.init_machine = gta02_machine_init,
|
||||
.timer = &s3c24xx_timer,
|
||||
MACHINE_END
|
||||
@ -34,6 +34,7 @@ obj-$(CONFIG_S3C_DEV_HSMMC) += dev-hsmmc.o
|
||||
obj-$(CONFIG_S3C_DEV_HSMMC1) += dev-hsmmc1.o
|
||||
obj-y += dev-i2c0.o
|
||||
obj-$(CONFIG_S3C_DEV_I2C1) += dev-i2c1.o
|
||||
obj-$(CONFIG_SND_S3C24XX_SOC) += dev-audio.o
|
||||
obj-$(CONFIG_S3C_DEV_FB) += dev-fb.o
|
||||
obj-$(CONFIG_S3C_DEV_USB_HOST) += dev-usb.o
|
||||
obj-$(CONFIG_S3C_DEV_USB_HSOTG) += dev-usb-hsotg.o
|
||||
|
||||
68
arch/arm/plat-s3c/dev-audio.c
Normal file
68
arch/arm/plat-s3c/dev-audio.c
Normal file
@ -0,0 +1,68 @@
|
||||
/* linux/arch/arm/plat-s3c/dev-audio.c
|
||||
*
|
||||
* Copyright 2009 Wolfson Microelectronics
|
||||
* Mark Brown <broonie@opensource.wolfsonmicro.com>
|
||||
*
|
||||
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/string.h>
|
||||
#include <linux/platform_device.h>
|
||||
|
||||
#include <mach/irqs.h>
|
||||
#include <mach/map.h>
|
||||
|
||||
#include <plat/devs.h>
|
||||
|
||||
|
||||
static struct resource s3c64xx_iis0_resource[] = {
|
||||
[0] = {
|
||||
.start = S3C64XX_PA_IIS0,
|
||||
.end = S3C64XX_PA_IIS0 + 0x100 - 1,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
};
|
||||
|
||||
struct platform_device s3c64xx_device_iis0 = {
|
||||
.name = "s3c64xx-iis",
|
||||
.id = 0,
|
||||
.num_resources = ARRAY_SIZE(s3c64xx_iis0_resource),
|
||||
.resource = s3c64xx_iis0_resource,
|
||||
};
|
||||
EXPORT_SYMBOL(s3c64xx_device_iis0);
|
||||
|
||||
static struct resource s3c64xx_iis1_resource[] = {
|
||||
[0] = {
|
||||
.start = S3C64XX_PA_IIS1,
|
||||
.end = S3C64XX_PA_IIS1 + 0x100 - 1,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
};
|
||||
|
||||
struct platform_device s3c64xx_device_iis1 = {
|
||||
.name = "s3c64xx-iis",
|
||||
.id = 1,
|
||||
.num_resources = ARRAY_SIZE(s3c64xx_iis1_resource),
|
||||
.resource = s3c64xx_iis1_resource,
|
||||
};
|
||||
EXPORT_SYMBOL(s3c64xx_device_iis1);
|
||||
|
||||
static struct resource s3c64xx_iisv4_resource[] = {
|
||||
[0] = {
|
||||
.start = S3C64XX_PA_IISV4,
|
||||
.end = S3C64XX_PA_IISV4 + 0x100 - 1,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
};
|
||||
|
||||
struct platform_device s3c64xx_device_iisv4 = {
|
||||
.name = "s3c64xx-iis-v4",
|
||||
.id = -1,
|
||||
.num_resources = ARRAY_SIZE(s3c64xx_iisv4_resource),
|
||||
.resource = s3c64xx_iisv4_resource,
|
||||
};
|
||||
EXPORT_SYMBOL(s3c64xx_device_iisv4);
|
||||
@ -24,13 +24,16 @@ extern struct platform_device *s3c24xx_uart_src[];
|
||||
|
||||
extern struct platform_device s3c_device_timer[];
|
||||
|
||||
extern struct platform_device s3c64xx_device_iis0;
|
||||
extern struct platform_device s3c64xx_device_iis1;
|
||||
extern struct platform_device s3c64xx_device_iisv4;
|
||||
|
||||
extern struct platform_device s3c_device_fb;
|
||||
extern struct platform_device s3c_device_usb;
|
||||
extern struct platform_device s3c_device_lcd;
|
||||
extern struct platform_device s3c_device_wdt;
|
||||
extern struct platform_device s3c_device_i2c0;
|
||||
extern struct platform_device s3c_device_i2c1;
|
||||
extern struct platform_device s3c_device_iis;
|
||||
extern struct platform_device s3c_device_rtc;
|
||||
extern struct platform_device s3c_device_adc;
|
||||
extern struct platform_device s3c_device_sdi;
|
||||
|
||||
@ -23,6 +23,7 @@ obj-y += gpiolib.o
|
||||
|
||||
obj-$(CONFIG_CPU_S3C6400_INIT) += s3c6400-init.o
|
||||
obj-$(CONFIG_CPU_S3C6400_CLOCK) += s3c6400-clock.o
|
||||
obj-$(CONFIG_CPU_FREQ_S3C64XX) += cpufreq.o
|
||||
|
||||
# PM support
|
||||
|
||||
|
||||
262
arch/arm/plat-s3c64xx/cpufreq.c
Normal file
262
arch/arm/plat-s3c64xx/cpufreq.c
Normal file
@ -0,0 +1,262 @@
|
||||
/* linux/arch/arm/plat-s3c64xx/cpufreq.c
|
||||
*
|
||||
* Copyright 2009 Wolfson Microelectronics plc
|
||||
*
|
||||
* S3C64xx CPUfreq Support
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/cpufreq.h>
|
||||
#include <linux/clk.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/regulator/consumer.h>
|
||||
|
||||
static struct clk *armclk;
|
||||
static struct regulator *vddarm;
|
||||
|
||||
#ifdef CONFIG_CPU_S3C6410
|
||||
struct s3c64xx_dvfs {
|
||||
unsigned int vddarm_min;
|
||||
unsigned int vddarm_max;
|
||||
};
|
||||
|
||||
static struct s3c64xx_dvfs s3c64xx_dvfs_table[] = {
|
||||
[0] = { 1000000, 1000000 },
|
||||
[1] = { 1000000, 1050000 },
|
||||
[2] = { 1050000, 1100000 },
|
||||
[3] = { 1050000, 1150000 },
|
||||
[4] = { 1250000, 1350000 },
|
||||
};
|
||||
|
||||
static struct cpufreq_frequency_table s3c64xx_freq_table[] = {
|
||||
{ 0, 66000 },
|
||||
{ 0, 133000 },
|
||||
{ 1, 222000 },
|
||||
{ 1, 266000 },
|
||||
{ 2, 333000 },
|
||||
{ 2, 400000 },
|
||||
{ 3, 532000 },
|
||||
{ 3, 533000 },
|
||||
{ 4, 667000 },
|
||||
{ 0, CPUFREQ_TABLE_END },
|
||||
};
|
||||
#endif
|
||||
|
||||
static int s3c64xx_cpufreq_verify_speed(struct cpufreq_policy *policy)
|
||||
{
|
||||
if (policy->cpu != 0)
|
||||
return -EINVAL;
|
||||
|
||||
return cpufreq_frequency_table_verify(policy, s3c64xx_freq_table);
|
||||
}
|
||||
|
||||
static unsigned int s3c64xx_cpufreq_get_speed(unsigned int cpu)
|
||||
{
|
||||
if (cpu != 0)
|
||||
return 0;
|
||||
|
||||
return clk_get_rate(armclk) / 1000;
|
||||
}
|
||||
|
||||
static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
|
||||
unsigned int target_freq,
|
||||
unsigned int relation)
|
||||
{
|
||||
int ret;
|
||||
unsigned int i;
|
||||
struct cpufreq_freqs freqs;
|
||||
struct s3c64xx_dvfs *dvfs;
|
||||
|
||||
ret = cpufreq_frequency_table_target(policy, s3c64xx_freq_table,
|
||||
target_freq, relation, &i);
|
||||
if (ret != 0)
|
||||
return ret;
|
||||
|
||||
freqs.cpu = 0;
|
||||
freqs.old = clk_get_rate(armclk) / 1000;
|
||||
freqs.new = s3c64xx_freq_table[i].frequency;
|
||||
freqs.flags = 0;
|
||||
dvfs = &s3c64xx_dvfs_table[s3c64xx_freq_table[i].index];
|
||||
|
||||
if (freqs.old == freqs.new)
|
||||
return 0;
|
||||
|
||||
pr_debug("cpufreq: Transition %d-%dkHz\n", freqs.old, freqs.new);
|
||||
|
||||
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
|
||||
|
||||
#ifdef CONFIG_REGULATOR
|
||||
if (vddarm && freqs.new > freqs.old) {
|
||||
ret = regulator_set_voltage(vddarm,
|
||||
dvfs->vddarm_min,
|
||||
dvfs->vddarm_max);
|
||||
if (ret != 0) {
|
||||
pr_err("cpufreq: Failed to set VDDARM for %dkHz: %d\n",
|
||||
freqs.new, ret);
|
||||
goto err;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
ret = clk_set_rate(armclk, freqs.new * 1000);
|
||||
if (ret < 0) {
|
||||
pr_err("cpufreq: Failed to set rate %dkHz: %d\n",
|
||||
freqs.new, ret);
|
||||
goto err;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_REGULATOR
|
||||
if (vddarm && freqs.new < freqs.old) {
|
||||
ret = regulator_set_voltage(vddarm,
|
||||
dvfs->vddarm_min,
|
||||
dvfs->vddarm_max);
|
||||
if (ret != 0) {
|
||||
pr_err("cpufreq: Failed to set VDDARM for %dkHz: %d\n",
|
||||
freqs.new, ret);
|
||||
goto err_clk;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
|
||||
|
||||
pr_debug("cpufreq: Set actual frequency %lukHz\n",
|
||||
clk_get_rate(armclk) / 1000);
|
||||
|
||||
return 0;
|
||||
|
||||
err_clk:
|
||||
if (clk_set_rate(armclk, freqs.old * 1000) < 0)
|
||||
pr_err("Failed to restore original clock rate\n");
|
||||
err:
|
||||
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_REGULATOR
|
||||
static void __init s3c64xx_cpufreq_constrain_voltages(void)
|
||||
{
|
||||
int count, v, i, found;
|
||||
struct cpufreq_frequency_table *freq;
|
||||
struct s3c64xx_dvfs *dvfs;
|
||||
|
||||
count = regulator_count_voltages(vddarm);
|
||||
if (count < 0) {
|
||||
pr_err("cpufreq: Unable to check supported voltages\n");
|
||||
return;
|
||||
}
|
||||
|
||||
freq = s3c64xx_freq_table;
|
||||
while (freq->frequency != CPUFREQ_TABLE_END) {
|
||||
if (freq->frequency == CPUFREQ_ENTRY_INVALID)
|
||||
continue;
|
||||
|
||||
dvfs = &s3c64xx_dvfs_table[freq->index];
|
||||
found = 0;
|
||||
|
||||
for (i = 0; i < count; i++) {
|
||||
v = regulator_list_voltage(vddarm, i);
|
||||
if (v >= dvfs->vddarm_min && v <= dvfs->vddarm_max)
|
||||
found = 1;
|
||||
}
|
||||
|
||||
if (!found) {
|
||||
pr_debug("cpufreq: %dkHz unsupported by regulator\n",
|
||||
freq->frequency);
|
||||
freq->frequency = CPUFREQ_ENTRY_INVALID;
|
||||
}
|
||||
|
||||
freq++;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
static int __init s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
|
||||
{
|
||||
int ret;
|
||||
struct cpufreq_frequency_table *freq;
|
||||
|
||||
if (policy->cpu != 0)
|
||||
return -EINVAL;
|
||||
|
||||
if (s3c64xx_freq_table == NULL) {
|
||||
pr_err("cpufreq: No frequency information for this CPU\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
armclk = clk_get(NULL, "armclk");
|
||||
if (IS_ERR(armclk)) {
|
||||
pr_err("cpufreq: Unable to obtain ARMCLK: %ld\n",
|
||||
PTR_ERR(armclk));
|
||||
return PTR_ERR(armclk);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_REGULATOR
|
||||
vddarm = regulator_get(NULL, "vddarm");
|
||||
if (IS_ERR(vddarm)) {
|
||||
ret = PTR_ERR(vddarm);
|
||||
pr_err("cpufreq: Failed to obtain VDDARM: %d\n", ret);
|
||||
pr_err("cpufreq: Only frequency scaling available\n");
|
||||
vddarm = NULL;
|
||||
} else {
|
||||
s3c64xx_cpufreq_constrain_voltages();
|
||||
}
|
||||
#endif
|
||||
|
||||
freq = s3c64xx_freq_table;
|
||||
while (freq->frequency != CPUFREQ_TABLE_END) {
|
||||
unsigned long r;
|
||||
|
||||
/* Check for frequencies we can generate */
|
||||
r = clk_round_rate(armclk, freq->frequency * 1000);
|
||||
r /= 1000;
|
||||
if (r != freq->frequency)
|
||||
freq->frequency = CPUFREQ_ENTRY_INVALID;
|
||||
|
||||
/* If we have no regulator then assume startup
|
||||
* frequency is the maximum we can support. */
|
||||
if (!vddarm && freq->frequency > s3c64xx_cpufreq_get_speed(0))
|
||||
freq->frequency = CPUFREQ_ENTRY_INVALID;
|
||||
|
||||
freq++;
|
||||
}
|
||||
|
||||
policy->cur = clk_get_rate(armclk) / 1000;
|
||||
|
||||
/* Pick a conservative guess in ns: we'll need ~1 I2C/SPI
|
||||
* write plus clock reprogramming. */
|
||||
policy->cpuinfo.transition_latency = 2 * 1000 * 1000;
|
||||
|
||||
ret = cpufreq_frequency_table_cpuinfo(policy, s3c64xx_freq_table);
|
||||
if (ret != 0) {
|
||||
pr_err("cpufreq: Failed to configure frequency table: %d\n",
|
||||
ret);
|
||||
regulator_put(vddarm);
|
||||
clk_put(armclk);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct cpufreq_driver s3c64xx_cpufreq_driver = {
|
||||
.owner = THIS_MODULE,
|
||||
.flags = 0,
|
||||
.verify = s3c64xx_cpufreq_verify_speed,
|
||||
.target = s3c64xx_cpufreq_set_target,
|
||||
.get = s3c64xx_cpufreq_get_speed,
|
||||
.init = s3c64xx_cpufreq_driver_init,
|
||||
.name = "s3c",
|
||||
};
|
||||
|
||||
static int __init s3c64xx_cpufreq_init(void)
|
||||
{
|
||||
return cpufreq_register_driver(&s3c64xx_cpufreq_driver);
|
||||
}
|
||||
module_init(s3c64xx_cpufreq_init);
|
||||
@ -794,7 +794,7 @@ static void s3cmci_dma_setup(struct s3cmci_host *host,
|
||||
host->mem->start + host->sdidata);
|
||||
|
||||
if (!setup_ok) {
|
||||
s3c2410_dma_config(host->dma, 4, 0);
|
||||
s3c2410_dma_config(host->dma, 4);
|
||||
s3c2410_dma_set_buffdone_fn(host->dma,
|
||||
s3cmci_dma_done_callback);
|
||||
s3c2410_dma_setflags(host->dma, S3C2410_DMAF_AUTOSTART);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user