diff options
Diffstat (limited to 'arch/arm/plat-s3c')
30 files changed, 1160 insertions, 142 deletions
diff --git a/arch/arm/plat-s3c/Kconfig b/arch/arm/plat-s3c/Kconfig index 935c7558469b..e139a72c2149 100644 --- a/arch/arm/plat-s3c/Kconfig +++ b/arch/arm/plat-s3c/Kconfig @@ -159,6 +159,12 @@ config S3C_GPIO_CFG_S3C64XX Internal configuration to enable S3C64XX style GPIO configuration functions. +config S5P_GPIO_CFG_S5PC1XX + bool + help + Internal configuration to enable S5PC1XX style GPIO configuration + functions. + # DMA config S3C_DMA @@ -178,6 +184,11 @@ config S3C_DEV_HSMMC1 help Compile in platform device definitions for HSMMC channel 1 +config S3C_DEV_HSMMC2 + bool + help + Compile in platform device definitions for HSMMC channel 2 + config S3C_DEV_I2C1 bool help @@ -198,4 +209,9 @@ config S3C_DEV_USB_HSOTG help Compile in platform device definition for USB high-speed OtG +config S3C_DEV_NAND + bool + help + Compile in platform device definition for NAND controller + endif diff --git a/arch/arm/plat-s3c/Makefile b/arch/arm/plat-s3c/Makefile index 0761766b1833..50444da98425 100644 --- a/arch/arm/plat-s3c/Makefile +++ b/arch/arm/plat-s3c/Makefile @@ -28,13 +28,18 @@ obj-$(CONFIG_PM) += pm.o obj-$(CONFIG_PM) += pm-gpio.o obj-$(CONFIG_S3C2410_PM_CHECK) += pm-check.o +# PWM support + +obj-$(CONFIG_HAVE_PWM) += pwm.o + # devices obj-$(CONFIG_S3C_DEV_HSMMC) += dev-hsmmc.o obj-$(CONFIG_S3C_DEV_HSMMC1) += dev-hsmmc1.o +obj-$(CONFIG_S3C_DEV_HSMMC2) += dev-hsmmc2.o obj-y += dev-i2c0.o obj-$(CONFIG_S3C_DEV_I2C1) += dev-i2c1.o -obj-$(CONFIG_SND_S3C64XX_SOC_I2S) += dev-audio.o obj-$(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 +obj-$(CONFIG_S3C_DEV_NAND) += dev-nand.o diff --git a/arch/arm/plat-s3c/clock.c b/arch/arm/plat-s3c/clock.c index 4d01ef1a25dd..619cfa82dcab 100644 --- a/arch/arm/plat-s3c/clock.c +++ b/arch/arm/plat-s3c/clock.c @@ -1,6 +1,6 @@ /* linux/arch/arm/plat-s3c24xx/clock.c * - * Copyright (c) 2004-2005 Simtec Electronics + * Copyright 2004-2005 Simtec Electronics * Ben Dooks <ben@simtec.co.uk> * * S3C24XX Core clock control support @@ -337,7 +337,7 @@ int s3c24xx_register_clocks(struct clk **clks, int nr_clks) int __init s3c24xx_register_baseclocks(unsigned long xtal) { - printk(KERN_INFO "S3C24XX Clocks, (c) 2004 Simtec Electronics\n"); + printk(KERN_INFO "S3C24XX Clocks, Copyright 2004 Simtec Electronics\n"); clk_xtal.rate = xtal; diff --git a/arch/arm/plat-s3c/dev-audio.c b/arch/arm/plat-s3c/dev-audio.c deleted file mode 100644 index 1322beb40dd7..000000000000 --- a/arch/arm/plat-s3c/dev-audio.c +++ /dev/null @@ -1,68 +0,0 @@ -/* 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); diff --git a/arch/arm/plat-s3c/dev-hsmmc2.c b/arch/arm/plat-s3c/dev-hsmmc2.c new file mode 100644 index 000000000000..824580bc0e06 --- /dev/null +++ b/arch/arm/plat-s3c/dev-hsmmc2.c @@ -0,0 +1,69 @@ +/* linux/arch/arm/plat-s3c/dev-hsmmc2.c + * + * Copyright (c) 2009 Samsung Electronics + * Copyright (c) 2009 Maurus Cuelenaere + * + * Based on arch/arm/plat-s3c/dev-hsmmc1.c + * original file Copyright (c) 2008 Simtec Electronics + * + * S3C series device definition for hsmmc device 2 + * + * 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/platform_device.h> +#include <linux/mmc/host.h> + +#include <mach/map.h> +#include <plat/sdhci.h> +#include <plat/devs.h> + +#define S3C_SZ_HSMMC (0x1000) + +static struct resource s3c_hsmmc2_resource[] = { + [0] = { + .start = S3C_PA_HSMMC2, + .end = S3C_PA_HSMMC2 + S3C_SZ_HSMMC - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_HSMMC2, + .end = IRQ_HSMMC2, + .flags = IORESOURCE_IRQ, + } +}; + +static u64 s3c_device_hsmmc2_dmamask = 0xffffffffUL; + +struct s3c_sdhci_platdata s3c_hsmmc2_def_platdata = { + .max_width = 4, + .host_caps = (MMC_CAP_4_BIT_DATA | + MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED), +}; + +struct platform_device s3c_device_hsmmc2 = { + .name = "s3c-sdhci", + .id = 2, + .num_resources = ARRAY_SIZE(s3c_hsmmc2_resource), + .resource = s3c_hsmmc2_resource, + .dev = { + .dma_mask = &s3c_device_hsmmc2_dmamask, + .coherent_dma_mask = 0xffffffffUL, + .platform_data = &s3c_hsmmc2_def_platdata, + }, +}; + +void s3c_sdhci2_set_platdata(struct s3c_sdhci_platdata *pd) +{ + struct s3c_sdhci_platdata *set = &s3c_hsmmc2_def_platdata; + + set->max_width = pd->max_width; + + if (pd->cfg_gpio) + set->cfg_gpio = pd->cfg_gpio; + if (pd->cfg_card) + set->cfg_card = pd->cfg_card; +} diff --git a/arch/arm/plat-s3c/dev-i2c0.c b/arch/arm/plat-s3c/dev-i2c0.c index 428372868fbb..4c761529b949 100644 --- a/arch/arm/plat-s3c/dev-i2c0.c +++ b/arch/arm/plat-s3c/dev-i2c0.c @@ -1,6 +1,6 @@ /* linux/arch/arm/plat-s3c/dev-i2c0.c * - * Copyright 2008,2009 Simtec Electronics + * Copyright 2008-2009 Simtec Electronics * Ben Dooks <ben@simtec.co.uk> * http://armlinux.simtec.co.uk/ * diff --git a/arch/arm/plat-s3c/dev-i2c1.c b/arch/arm/plat-s3c/dev-i2c1.c index 8349c462788c..d44f79110506 100644 --- a/arch/arm/plat-s3c/dev-i2c1.c +++ b/arch/arm/plat-s3c/dev-i2c1.c @@ -1,6 +1,6 @@ /* linux/arch/arm/plat-s3c/dev-i2c1.c * - * Copyright 2008,2009 Simtec Electronics + * Copyright 2008-2009 Simtec Electronics * Ben Dooks <ben@simtec.co.uk> * http://armlinux.simtec.co.uk/ * diff --git a/arch/arm/plat-s3c/dev-nand.c b/arch/arm/plat-s3c/dev-nand.c new file mode 100644 index 000000000000..e771e77dcd54 --- /dev/null +++ b/arch/arm/plat-s3c/dev-nand.c @@ -0,0 +1,127 @@ +/* + * S3C series device definition for nand device + * + * 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/platform_device.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> + +#include <mach/map.h> +#include <plat/devs.h> +#include <plat/nand.h> + +static struct resource s3c_nand_resource[] = { + [0] = { + .start = S3C_PA_NAND, + .end = S3C_PA_NAND + SZ_1M, + .flags = IORESOURCE_MEM, + } +}; + +struct platform_device s3c_device_nand = { + .name = "s3c2410-nand", + .id = -1, + .num_resources = ARRAY_SIZE(s3c_nand_resource), + .resource = s3c_nand_resource, +}; + +EXPORT_SYMBOL(s3c_device_nand); + +/** + * s3c_nand_copy_set() - copy nand set data + * @set: The new structure, directly copied from the old. + * + * Copy all the fields from the NAND set field from what is probably __initdata + * to new kernel memory. The code returns 0 if the copy happened correctly or + * an error code for the calling function to display. + * + * Note, we currently do not try and look to see if we've already copied the + * data in a previous set. + */ +static int __init s3c_nand_copy_set(struct s3c2410_nand_set *set) +{ + void *ptr; + int size; + + size = sizeof(struct mtd_partition) * set->nr_partitions; + if (size) { + ptr = kmemdup(set->partitions, size, GFP_KERNEL); + set->partitions = ptr; + + if (!ptr) + return -ENOMEM; + } + + size = sizeof(int) * set->nr_chips; + if (size) { + ptr = kmemdup(set->nr_map, size, GFP_KERNEL); + set->nr_map = ptr; + + if (!ptr) + return -ENOMEM; + } + + if (set->ecc_layout) { + ptr = kmemdup(set->ecc_layout, + sizeof(struct nand_ecclayout), GFP_KERNEL); + set->ecc_layout = ptr; + + if (!ptr) + return -ENOMEM; + } + + return 0; +} + +void __init s3c_nand_set_platdata(struct s3c2410_platform_nand *nand) +{ + struct s3c2410_platform_nand *npd; + int size; + int ret; + + /* note, if we get a failure in allocation, we simply drop out of the + * function. If there is so little memory available at initialisation + * time then there is little chance the system is going to run. + */ + + npd = kmemdup(nand, sizeof(struct s3c2410_platform_nand), GFP_KERNEL); + if (!npd) { + printk(KERN_ERR "%s: failed copying platform data\n", __func__); + return; + } + + /* now see if we need to copy any of the nand set data */ + + size = sizeof(struct s3c2410_nand_set) * npd->nr_sets; + if (size) { + struct s3c2410_nand_set *from = npd->sets; + struct s3c2410_nand_set *to; + int i; + + to = kmemdup(from, size, GFP_KERNEL); + npd->sets = to; /* set, even if we failed */ + + if (!to) { + printk(KERN_ERR "%s: no memory for sets\n", __func__); + return; + } + + for (i = 0; i < npd->nr_sets; i++) { + ret = s3c_nand_copy_set(to); + if (!ret) { + printk(KERN_ERR "%s: failed to copy set %d\n", + __func__, i); + return; + } + to++; + } + } +} + +EXPORT_SYMBOL_GPL(s3c_nand_set_platdata); diff --git a/arch/arm/plat-s3c/dma.c b/arch/arm/plat-s3c/dma.c index c9db75c06af5..a995850cd9d5 100644 --- a/arch/arm/plat-s3c/dma.c +++ b/arch/arm/plat-s3c/dma.c @@ -1,6 +1,6 @@ /* linux/arch/arm/plat-s3c/dma.c * - * Copyright (c) 2003-2005,2006,2009 Simtec Electronics + * Copyright (c) 2003-2009 Simtec Electronics * Ben Dooks <ben@simtec.co.uk> * http://armlinux.simtec.co.uk/ * diff --git a/arch/arm/plat-s3c/gpio.c b/arch/arm/plat-s3c/gpio.c index 260fdc6ad685..5ff24e0f9f89 100644 --- a/arch/arm/plat-s3c/gpio.c +++ b/arch/arm/plat-s3c/gpio.c @@ -28,7 +28,7 @@ static __init void s3c_gpiolib_track(struct s3c_gpio_chip *chip) gpn = chip->chip.base; for (i = 0; i < chip->chip.ngpio; i++, gpn++) { - BUG_ON(gpn > ARRAY_SIZE(s3c_gpios)); + BUG_ON(gpn >= ARRAY_SIZE(s3c_gpios)); s3c_gpios[gpn] = chip; } } diff --git a/arch/arm/plat-s3c/include/plat/adc.h b/arch/arm/plat-s3c/include/plat/adc.h index d847bd476b6c..5f3b1cd53b90 100644 --- a/arch/arm/plat-s3c/include/plat/adc.h +++ b/arch/arm/plat-s3c/include/plat/adc.h @@ -19,10 +19,14 @@ struct s3c_adc_client; extern int s3c_adc_start(struct s3c_adc_client *client, unsigned int channel, unsigned int nr_samples); +extern int s3c_adc_read(struct s3c_adc_client *client, unsigned int ch); + extern struct s3c_adc_client * s3c_adc_register(struct platform_device *pdev, - void (*select)(unsigned selected), - void (*conv)(unsigned d0, unsigned d1, + void (*select)(struct s3c_adc_client *client, + unsigned selected), + void (*conv)(struct s3c_adc_client *client, + unsigned d0, unsigned d1, unsigned *samples_left), unsigned int is_ts); diff --git a/arch/arm/plat-s3c/include/plat/audio-simtec.h b/arch/arm/plat-s3c/include/plat/audio-simtec.h new file mode 100644 index 000000000000..53a93656d5db --- /dev/null +++ b/arch/arm/plat-s3c/include/plat/audio-simtec.h @@ -0,0 +1,37 @@ +/* arch/arm/plat-s3c/include/plat/audio-simtec.h + * + * Copyright 2008 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks <ben@simtec.co.uk> + * + * 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. + * + * Simtec Audio support. +*/ + +/** + * struct s3c24xx_audio_simtec_pdata - platform data for simtec audio + * @use_mpllin: Select codec clock from MPLLin + * @output_cdclk: Need to output CDCLK to the codec + * @have_mic: Set if we have a MIC socket + * @have_lout: Set if we have a LineOut socket + * @amp_gpio: GPIO pin to enable the AMP + * @amp_gain: Option GPIO to control AMP gain + */ +struct s3c24xx_audio_simtec_pdata { + unsigned int use_mpllin:1; + unsigned int output_cdclk:1; + + unsigned int have_mic:1; + unsigned int have_lout:1; + + int amp_gpio; + int amp_gain[2]; + + void (*startup)(void); +}; + +extern int simtec_audio_add(const char *codec_name, bool has_lr_routing, + struct s3c24xx_audio_simtec_pdata *pdata); diff --git a/arch/arm/plat-s3c/include/plat/audio.h b/arch/arm/plat-s3c/include/plat/audio.h index de0e8da48bc3..f22d23bb6271 100644 --- a/arch/arm/plat-s3c/include/plat/audio.h +++ b/arch/arm/plat-s3c/include/plat/audio.h @@ -1,45 +1,17 @@ -/* arch/arm/mach-s3c2410/include/mach/audio.h +/* arch/arm/plat-s3c/include/plat/audio.h * - * Copyright (c) 2004-2005 Simtec Electronics - * http://www.simtec.co.uk/products/SWLINUX/ - * Ben Dooks <ben@simtec.co.uk> - * - * S3C24XX - Audio platfrom_device info + * Copyright (c) 2009 Samsung Electronics Co. Ltd + * Author: Jaswinder Singh <jassi.brar@samsung.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. -*/ - -#ifndef __ASM_ARCH_AUDIO_H -#define __ASM_ARCH_AUDIO_H __FILE__ - -/* struct s3c24xx_iis_ops - * - * called from the s3c24xx audio core to deal with the architecture - * or the codec's setup and control. - * - * the pointer to itself is passed through in case the caller wants to - * embed this in an larger structure for easy reference to it's context. -*/ + */ -struct s3c24xx_iis_ops { - struct module *owner; - - int (*startup)(struct s3c24xx_iis_ops *me); - void (*shutdown)(struct s3c24xx_iis_ops *me); - int (*suspend)(struct s3c24xx_iis_ops *me); - int (*resume)(struct s3c24xx_iis_ops *me); - - int (*open)(struct s3c24xx_iis_ops *me, struct snd_pcm_substream *strm); - int (*close)(struct s3c24xx_iis_ops *me, struct snd_pcm_substream *strm); - int (*prepare)(struct s3c24xx_iis_ops *me, struct snd_pcm_substream *strm, struct snd_pcm_runtime *rt); +/** + * struct s3c_audio_pdata - common platform data for audio device drivers + * @cfg_gpio: Callback function to setup mux'ed pins in I2S/PCM/AC97 mode + */ +struct s3c_audio_pdata { + int (*cfg_gpio)(struct platform_device *); }; - -struct s3c24xx_platdata_iis { - const char *codec_clk; - struct s3c24xx_iis_ops *ops; - int (*match_dev)(struct device *dev); -}; - -#endif /* __ASM_ARCH_AUDIO_H */ diff --git a/arch/arm/plat-s3c/include/plat/cpu-freq.h b/arch/arm/plat-s3c/include/plat/cpu-freq.h index c86a13307e90..94eb06a2ea5c 100644 --- a/arch/arm/plat-s3c/include/plat/cpu-freq.h +++ b/arch/arm/plat-s3c/include/plat/cpu-freq.h @@ -1,6 +1,6 @@ /* arch/arm/plat-s3c/include/plat/cpu-freq.h * - * Copyright (c) 2006,2007 Simtec Electronics + * Copyright (c) 2006-2007 Simtec Electronics * http://armlinux.simtec.co.uk/ * Ben Dooks <ben@simtec.co.uk> * @@ -17,6 +17,21 @@ struct s3c_cpufreq_info; struct s3c_cpufreq_board; struct s3c_iotimings; +/** + * struct s3c_freq - frequency information (mainly for core drivers) + * @fclk: The FCLK frequency in Hz. + * @armclk: The ARMCLK frequency in Hz. + * @hclk_tns: HCLK cycle time in 10ths of nano-seconds. + * @hclk: The HCLK frequency in Hz. + * @pclk: The PCLK frequency in Hz. + * + * This contains the frequency information about the current configuration + * mainly for the core drivers to ensure we do not end up passing about + * a large number of parameters. + * + * The @hclk_tns field is a useful cache for the parts of the drivers that + * need to calculate IO timings and suchlike. + */ struct s3c_freq { unsigned long fclk; unsigned long armclk; @@ -25,48 +40,84 @@ struct s3c_freq { unsigned long pclk; }; -/* wrapper 'struct cpufreq_freqs' so that any drivers receiving the +/** + * struct s3c_cpufreq_freqs - s3c cpufreq notification information. + * @freqs: The cpufreq setting information. + * @old: The old clock settings. + * @new: The new clock settings. + * @pll_changing: Set if the PLL is changing. + * + * Wrapper 'struct cpufreq_freqs' so that any drivers receiving the * notification can use this information that is not provided by just * having the core frequency alone. + * + * The pll_changing flag is used to indicate if the PLL itself is + * being set during this change. This is important as the clocks + * will temporarily be set to the XTAL clock during this time, so + * drivers may want to close down their output during this time. + * + * Note, this is not being used by any current drivers and therefore + * may be removed in the future. */ - struct s3c_cpufreq_freqs { struct cpufreq_freqs freqs; struct s3c_freq old; struct s3c_freq new; + + unsigned int pll_changing:1; }; #define to_s3c_cpufreq(_cf) container_of(_cf, struct s3c_cpufreq_freqs, freqs) +/** + * struct s3c_clkdivs - clock divisor information + * @p_divisor: Divisor from FCLK to PCLK. + * @h_divisor: Divisor from FCLK to HCLK. + * @arm_divisor: Divisor from FCLK to ARMCLK (not all CPUs). + * @dvs: Non-zero if using DVS mode for ARMCLK. + * + * Divisor settings for the core clocks. + */ struct s3c_clkdivs { - int p_divisor; /* fclk / pclk */ - int h_divisor; /* fclk / hclk */ - int arm_divisor; /* not all cpus have this. */ - unsigned char dvs; /* using dvs mode to arm. */ + int p_divisor; + int h_divisor; + int arm_divisor; + unsigned char dvs; }; #define PLLVAL(_m, _p, _s) (((_m) << 12) | ((_p) << 4) | (_s)) +/** + * struct s3c_pllval - PLL value entry. + * @freq: The frequency for this entry in Hz. + * @pll_reg: The PLL register setting for this PLL value. + */ struct s3c_pllval { unsigned long freq; unsigned long pll_reg; }; -struct s3c_cpufreq_config { - struct s3c_freq freq; - struct s3c_pllval pll; - struct s3c_clkdivs divs; - struct s3c_cpufreq_info *info; /* for core, not drivers */ - struct s3c_cpufreq_board *board; -}; - -/* s3c_cpufreq_board +/** + * struct s3c_cpufreq_board - per-board cpu frequency informatin + * @refresh: The SDRAM refresh period in nanoseconds. + * @auto_io: Set if the IO timing settings should be generated from the + * initialisation time hardware registers. + * @need_io: Set if the board has external IO on any of the chipselect + * lines that will require the hardware timing registers to be + * updated on a clock change. + * @max: The maxium frequency limits for the system. Any field that + * is left at zero will use the CPU's settings. + * + * This contains the board specific settings that affect how the CPU + * drivers chose settings. These include the memory refresh and IO + * timing information. * - * per-board configuraton information, such as memory refresh and - * how to initialise IO timings. + * Registration depends on the driver being used, the ARMCLK only + * implementation does not currently need this but the older style + * driver requires this to be available. */ struct s3c_cpufreq_board { - unsigned int refresh; /* refresh period in ns */ + unsigned int refresh; unsigned int auto_io:1; /* automatically init io timings. */ unsigned int need_io:1; /* set if needs io timing support. */ diff --git a/arch/arm/plat-s3c/include/plat/cpu.h b/arch/arm/plat-s3c/include/plat/cpu.h index be541cbba070..d1131ca11e97 100644 --- a/arch/arm/plat-s3c/include/plat/cpu.h +++ b/arch/arm/plat-s3c/include/plat/cpu.h @@ -12,6 +12,9 @@ /* todo - fix when rmk changes iodescs to use `void __iomem *` */ +#ifndef __SAMSUNG_PLAT_CPU_H +#define __SAMSUNG_PLAT_CPU_H + #define IODESC_ENT(x) { (unsigned long)S3C24XX_VA_##x, __phys_to_pfn(S3C24XX_PA_##x), S3C24XX_SZ_##x, MT_DEVICE } #ifndef MHZ @@ -65,6 +68,7 @@ extern struct sys_timer s3c24xx_timer; /* system device classes */ extern struct sysdev_class s3c2410_sysclass; +extern struct sysdev_class s3c2410a_sysclass; extern struct sysdev_class s3c2412_sysclass; extern struct sysdev_class s3c2440_sysclass; extern struct sysdev_class s3c2442_sysclass; @@ -72,3 +76,6 @@ extern struct sysdev_class s3c2443_sysclass; extern struct sysdev_class s3c6410_sysclass; extern struct sysdev_class s3c64xx_sysclass; +extern void (*s5pc1xx_idle)(void); + +#endif diff --git a/arch/arm/plat-s3c/include/plat/devs.h b/arch/arm/plat-s3c/include/plat/devs.h index 2e170827e0b0..932cbbbb4273 100644 --- a/arch/arm/plat-s3c/include/plat/devs.h +++ b/arch/arm/plat-s3c/include/plat/devs.h @@ -28,6 +28,9 @@ 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 s3c64xx_device_pcm0; +extern struct platform_device s3c64xx_device_pcm1; + extern struct platform_device s3c_device_fb; extern struct platform_device s3c_device_usb; extern struct platform_device s3c_device_lcd; @@ -46,6 +49,8 @@ extern struct platform_device s3c_device_hsmmc2; extern struct platform_device s3c_device_spi0; extern struct platform_device s3c_device_spi1; +extern struct platform_device s3c_device_hwmon; + extern struct platform_device s3c_device_nand; extern struct platform_device s3c_device_usbgadget; @@ -56,5 +61,6 @@ extern struct platform_device s3c_device_usb_hsotg; #ifdef CONFIG_CPU_S3C2440 extern struct platform_device s3c_device_camif; +extern struct platform_device s3c_device_ac97; #endif diff --git a/arch/arm/plat-s3c/include/plat/dma.h b/arch/arm/plat-s3c/include/plat/dma.h index 34dba98f08e1..e429d10be3ad 100644 --- a/arch/arm/plat-s3c/include/plat/dma.h +++ b/arch/arm/plat-s3c/include/plat/dma.h @@ -1,6 +1,6 @@ /* arch/arm/plat-s3c/include/plat/dma.h * - * Copyright (C) 2003,2004,2006 Simtec Electronics + * Copyright (C) 2003-2006 Simtec Electronics * Ben Dooks <ben@simtec.co.uk> * * Samsung S3C DMA support diff --git a/arch/arm/plat-s3c/include/plat/fb.h b/arch/arm/plat-s3c/include/plat/fb.h index 214ff561b0dd..f8db87930f8b 100644 --- a/arch/arm/plat-s3c/include/plat/fb.h +++ b/arch/arm/plat-s3c/include/plat/fb.h @@ -70,4 +70,11 @@ extern void s3c_fb_set_platdata(struct s3c_fb_platdata *pd); */ extern void s3c64xx_fb_gpio_setup_24bpp(void); +/** + * s5pc100_fb_gpio_setup_24bpp() - S5PC100 setup function for 24bpp LCD + * + * Initialise the GPIO for an 24bpp LCD display on the RGB interface. + */ +extern void s5pc100_fb_gpio_setup_24bpp(void); + #endif /* __PLAT_S3C_FB_H */ diff --git a/arch/arm/plat-s3c/include/plat/hwmon.h b/arch/arm/plat-s3c/include/plat/hwmon.h new file mode 100644 index 000000000000..1ba88ea0aa31 --- /dev/null +++ b/arch/arm/plat-s3c/include/plat/hwmon.h @@ -0,0 +1,41 @@ +/* linux/arch/arm/plat-s3c/include/plat/hwmon.h + * + * Copyright 2005 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * S3C - HWMon interface for ADC + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#ifndef __ASM_ARCH_ADC_HWMON_H +#define __ASM_ARCH_ADC_HWMON_H __FILE__ + +/** + * s3c_hwmon_chcfg - channel configuration + * @name: The name to give this channel. + * @mult: Multiply the ADC value read by this. + * @div: Divide the value from the ADC by this. + * + * The value read from the ADC is converted to a value that + * hwmon expects (mV) by result = (value_read * @mult) / @div. + */ +struct s3c_hwmon_chcfg { + const char *name; + unsigned int mult; + unsigned int div; +}; + +/** + * s3c_hwmon_pdata - HWMON platform data + * @in: One configuration for each possible channel used. + */ +struct s3c_hwmon_pdata { + struct s3c_hwmon_chcfg *in[8]; +}; + +#endif /* __ASM_ARCH_ADC_HWMON_H */ + diff --git a/arch/arm/plat-s3c/include/plat/iic.h b/arch/arm/plat-s3c/include/plat/iic.h index 67450f115748..3083df00dee6 100644 --- a/arch/arm/plat-s3c/include/plat/iic.h +++ b/arch/arm/plat-s3c/include/plat/iic.h @@ -1,6 +1,6 @@ /* arch/arm/plat-s3c/include/plat/iic.h * - * Copyright 2004,2009 Simtec Electronics + * Copyright 2004-2009 Simtec Electronics * Ben Dooks <ben@simtec.co.uk> * * S3C - I2C Controller platform_device info diff --git a/arch/arm/plat-s3c/include/plat/map-base.h b/arch/arm/plat-s3c/include/plat/map-base.h index b84289d32a54..250be311c85b 100644 --- a/arch/arm/plat-s3c/include/plat/map-base.h +++ b/arch/arm/plat-s3c/include/plat/map-base.h @@ -32,9 +32,15 @@ #define S3C_VA_IRQ S3C_ADDR(0x00000000) /* irq controller(s) */ #define S3C_VA_SYS S3C_ADDR(0x00100000) /* system control */ -#define S3C_VA_MEM S3C_ADDR(0x00200000) /* system control */ +#define S3C_VA_MEM S3C_ADDR(0x00200000) /* memory control */ #define S3C_VA_TIMER S3C_ADDR(0x00300000) /* timer block */ #define S3C_VA_WATCHDOG S3C_ADDR(0x00400000) /* watchdog */ #define S3C_VA_UART S3C_ADDR(0x01000000) /* UART */ +/* This is used for the CPU specific mappings that may be needed, so that + * they do not need to directly used S3C_ADDR() and thus make it easier to + * modify the space for mapping. + */ +#define S3C_ADDR_CPU(x) S3C_ADDR(0x00500000 + (x)) + #endif /* __ASM_PLAT_MAP_H */ diff --git a/arch/arm/plat-s3c/include/plat/nand.h b/arch/arm/plat-s3c/include/plat/nand.h index 18f958801e64..065985978413 100644 --- a/arch/arm/plat-s3c/include/plat/nand.h +++ b/arch/arm/plat-s3c/include/plat/nand.h @@ -55,3 +55,11 @@ struct s3c2410_platform_nand { int chip); }; +/** + * s3c_nand_set_platdata() - register NAND platform data. + * @nand: The NAND platform data to register with s3c_device_nand. + * + * This function copies the given NAND platform data, @nand and registers + * it with the s3c_device_nand. This allows @nand to be __initdata. +*/ +extern void s3c_nand_set_platdata(struct s3c2410_platform_nand *nand); diff --git a/arch/arm/plat-s3c/include/plat/regs-fb-v4.h b/arch/arm/plat-s3c/include/plat/regs-fb-v4.h new file mode 100644 index 000000000000..a60ed0d06c94 --- /dev/null +++ b/arch/arm/plat-s3c/include/plat/regs-fb-v4.h @@ -0,0 +1,235 @@ +/* arch/arm/plat-s3c/include/plat/regs-fb-v4.h + * + * Copyright 2008 Openmoko, Inc. + * Copyright 2008 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks <ben@simtec.co.uk> + * + * S3C64XX - new-style framebuffer register definitions + * + * This is the register set for the new style framebuffer interface + * found from the S3C2443 onwards and specifically the S3C64XX series + * S3C6400 and S3C6410. + * + * The file contains the cpu specific items which change between whichever + * architecture is selected. See <plat/regs-fb.h> for the core definitions + * that are the same. + * + * 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 the core definitions here, in case we really do need to + * override them at a later date. +*/ + +#include <plat/regs-fb.h> + +#define S3C_FB_MAX_WIN (5) /* number of hardware windows available. */ +#define VIDCON1_FSTATUS_EVEN (1 << 15) + +/* Video timing controls */ +#define VIDTCON0 (0x10) +#define VIDTCON1 (0x14) +#define VIDTCON2 (0x18) + +/* Window position controls */ + +#define WINCON(_win) (0x20 + ((_win) * 4)) + +/* OSD1 and OSD4 do not have register D */ + +#define VIDOSD_A(_win) (0x40 + ((_win) * 16)) +#define VIDOSD_B(_win) (0x44 + ((_win) * 16)) +#define VIDOSD_C(_win) (0x48 + ((_win) * 16)) +#define VIDOSD_D(_win) (0x4C + ((_win) * 16)) + + +#define VIDINTCON0 (0x130) + +#define WxKEYCONy(_win, _con) ((0x140 + ((_win) * 8)) + ((_con) * 4)) + +/* WINCONx */ + +#define WINCONx_CSCWIDTH_MASK (0x3 << 26) +#define WINCONx_CSCWIDTH_SHIFT (26) +#define WINCONx_CSCWIDTH_WIDE (0x0 << 26) +#define WINCONx_CSCWIDTH_NARROW (0x3 << 26) + +#define WINCONx_ENLOCAL (1 << 22) +#define WINCONx_BUFSTATUS (1 << 21) +#define WINCONx_BUFSEL (1 << 20) +#define WINCONx_BUFAUTOEN (1 << 19) +#define WINCONx_YCbCr (1 << 13) + +#define WINCON1_LOCALSEL_CAMIF (1 << 23) + +#define WINCON2_LOCALSEL_CAMIF (1 << 23) +#define WINCON2_BLD_PIX (1 << 6) + +#define WINCON2_ALPHA_SEL (1 << 1) +#define WINCON2_BPPMODE_MASK (0xf << 2) +#define WINCON2_BPPMODE_SHIFT (2) +#define WINCON2_BPPMODE_1BPP (0x0 << 2) +#define WINCON2_BPPMODE_2BPP (0x1 << 2) +#define WINCON2_BPPMODE_4BPP (0x2 << 2) +#define WINCON2_BPPMODE_8BPP_1232 (0x4 << 2) +#define WINCON2_BPPMODE_16BPP_565 (0x5 << 2) +#define WINCON2_BPPMODE_16BPP_A1555 (0x6 << 2) +#define WINCON2_BPPMODE_16BPP_I1555 (0x7 << 2) +#define WINCON2_BPPMODE_18BPP_666 (0x8 << 2) +#define WINCON2_BPPMODE_18BPP_A1665 (0x9 << 2) +#define WINCON2_BPPMODE_19BPP_A1666 (0xa << 2) +#define WINCON2_BPPMODE_24BPP_888 (0xb << 2) +#define WINCON2_BPPMODE_24BPP_A1887 (0xc << 2) +#define WINCON2_BPPMODE_25BPP_A1888 (0xd << 2) +#define WINCON2_BPPMODE_28BPP_A4888 (0xd << 2) + +#define WINCON3_BLD_PIX (1 << 6) + +#define WINCON3_ALPHA_SEL (1 << 1) +#define WINCON3_BPPMODE_MASK (0xf << 2) +#define WINCON3_BPPMODE_SHIFT (2) +#define WINCON3_BPPMODE_1BPP (0x0 << 2) +#define WINCON3_BPPMODE_2BPP (0x1 << 2) +#define WINCON3_BPPMODE_4BPP (0x2 << 2) +#define WINCON3_BPPMODE_16BPP_565 (0x5 << 2) +#define WINCON3_BPPMODE_16BPP_A1555 (0x6 << 2) +#define WINCON3_BPPMODE_16BPP_I1555 (0x7 << 2) +#define WINCON3_BPPMODE_18BPP_666 (0x8 << 2) +#define WINCON3_BPPMODE_18BPP_A1665 (0x9 << 2) +#define WINCON3_BPPMODE_19BPP_A1666 (0xa << 2) +#define WINCON3_BPPMODE_24BPP_888 (0xb << 2) +#define WINCON3_BPPMODE_24BPP_A1887 (0xc << 2) +#define WINCON3_BPPMODE_25BPP_A1888 (0xd << 2) +#define WINCON3_BPPMODE_28BPP_A4888 (0xd << 2) + +#define VIDINTCON0_FIFIOSEL_WINDOW2 (0x10 << 5) +#define VIDINTCON0_FIFIOSEL_WINDOW3 (0x20 << 5) +#define VIDINTCON0_FIFIOSEL_WINDOW4 (0x40 << 5) + +#define DITHMODE (0x170) +#define WINxMAP(_win) (0x180 + ((_win) * 4)) + + +#define DITHMODE_R_POS_MASK (0x3 << 5) +#define DITHMODE_R_POS_SHIFT (5) +#define DITHMODE_R_POS_8BIT (0x0 << 5) +#define DITHMODE_R_POS_6BIT (0x1 << 5) +#define DITHMODE_R_POS_5BIT (0x2 << 5) + +#define DITHMODE_G_POS_MASK (0x3 << 3) +#define DITHMODE_G_POS_SHIFT (3) +#define DITHMODE_G_POS_8BIT (0x0 << 3) +#define DITHMODE_G_POS_6BIT (0x1 << 3) +#define DITHMODE_G_POS_5BIT (0x2 << 3) + +#define DITHMODE_B_POS_MASK (0x3 << 1) +#define DITHMODE_B_POS_SHIFT (1) +#define DITHMODE_B_POS_8BIT (0x0 << 1) +#define DITHMODE_B_POS_6BIT (0x1 << 1) +#define DITHMODE_B_POS_5BIT (0x2 << 1) + +#define DITHMODE_DITH_EN (1 << 0) + +#define WPALCON (0x1A0) + +/* Palette control */ +/* Note for S5PC100: you can still use those macros on WPALCON (aka WPALCON_L), + * but make sure that WPALCON_H W2PAL-W4PAL entries are zeroed out */ +#define WPALCON_W4PAL_16BPP_A555 (1 << 8) +#define WPALCON_W3PAL_16BPP_A555 (1 << 7) +#define WPALCON_W2PAL_16BPP_A555 (1 << 6) + + +/* system specific implementation code for palette sizes, and other + * information that changes depending on which architecture is being + * compiled. +*/ + +/* return true if window _win has OSD register D */ +#define s3c_fb_has_osd_d(_win) ((_win) != 4 && (_win) != 0) + +static inline unsigned int s3c_fb_win_pal_size(unsigned int win) +{ + if (win < 2) + return 256; + if (win < 4) + return 16; + if (win == 4) + return 4; + + BUG(); /* shouldn't get here */ +} + +static inline int s3c_fb_validate_win_bpp(unsigned int win, unsigned int bpp) +{ + /* all windows can do 1/2 bpp */ + + if ((bpp == 25 || bpp == 19) && win == 0) + return 0; /* win 0 does not have 19 or 25bpp modes */ + + if (bpp == 4 && win == 4) + return 0; + + if (bpp == 8 && (win >= 3)) + return 0; /* win 3/4 cannot do 8bpp in any mode */ + + return 1; +} + +static inline int s3c_fb_pal_is16(unsigned int window) +{ + return window > 1; +} + +struct s3c_fb_palette { + struct fb_bitfield r; + struct fb_bitfield g; + struct fb_bitfield b; + struct fb_bitfield a; +}; + +static inline void s3c_fb_init_palette(unsigned int window, + struct s3c_fb_palette *palette) +{ + if (window < 2) { + /* Windows 0/1 are 8/8/8 or A/8/8/8 */ + palette->r.offset = 16; + palette->r.length = 8; + palette->g.offset = 8; + palette->g.length = 8; + palette->b.offset = 0; + palette->b.length = 8; + } else { + /* currently we assume RGB 5/6/5 */ + palette->r.offset = 11; + palette->r.length = 5; + palette->g.offset = 5; + palette->g.length = 6; + palette->b.offset = 0; + palette->b.length = 5; + } +} + +/* Notes on per-window bpp settings + * + * Value Win0 Win1 Win2 Win3 Win 4 + * 0000 1(P) 1(P) 1(P) 1(P) 1(P) + * 0001 2(P) 2(P) 2(P) 2(P) 2(P) + * 0010 4(P) 4(P) 4(P) 4(P) -none- + * 0011 8(P) 8(P) -none- -none- -none- + * 0100 -none- 8(A232) 8(A232) -none- -none- + * 0101 16(565) 16(565) 16(565) 16(565) 16(565) + * 0110 -none- 16(A555) 16(A555) 16(A555) 16(A555) + * 0111 16(I555) 16(I565) 16(I555) 16(I555) 16(I555) + * 1000 18(666) 18(666) 18(666) 18(666) 18(666) + * 1001 -none- 18(A665) 18(A665) 18(A665) 16(A665) + * 1010 -none- 19(A666) 19(A666) 19(A666) 19(A666) + * 1011 24(888) 24(888) 24(888) 24(888) 24(888) + * 1100 -none- 24(A887) 24(A887) 24(A887) 24(A887) + * 1101 -none- 25(A888) 25(A888) 25(A888) 25(A888) + * 1110 -none- -none- -none- -none- -none- + * 1111 -none- -none- -none- -none- -none- +*/ diff --git a/arch/arm/plat-s3c/include/plat/regs-nand.h b/arch/arm/plat-s3c/include/plat/regs-nand.h index b2caa4bca270..238efea7b9e4 100644 --- a/arch/arm/plat-s3c/include/plat/regs-nand.h +++ b/arch/arm/plat-s3c/include/plat/regs-nand.h @@ -1,7 +1,7 @@ /* arch/arm/mach-s3c2410/include/mach/regs-nand.h * - * Copyright (c) 2004,2005 Simtec Electronics <linux@simtec.co.uk> - * http://www.simtec.co.uk/products/SWLINUX/ + * Copyright (c) 2004-2005 Simtec Electronics <linux@simtec.co.uk> + * http://www.simtec.co.uk/products/SWLINUX/ * * 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 diff --git a/arch/arm/plat-s3c/include/plat/regs-s3c2412-iis.h b/arch/arm/plat-s3c/include/plat/regs-s3c2412-iis.h index 0fad7571030e..abf2fbc2eb2f 100644 --- a/arch/arm/plat-s3c/include/plat/regs-s3c2412-iis.h +++ b/arch/arm/plat-s3c/include/plat/regs-s3c2412-iis.h @@ -33,6 +33,11 @@ #define S3C2412_IISCON_RXDMA_ACTIVE (1 << 1) #define S3C2412_IISCON_IIS_ACTIVE (1 << 0) +#define S3C64XX_IISMOD_BLC_16BIT (0 << 13) +#define S3C64XX_IISMOD_BLC_8BIT (1 << 13) +#define S3C64XX_IISMOD_BLC_24BIT (2 << 13) +#define S3C64XX_IISMOD_BLC_MASK (3 << 13) + #define S3C64XX_IISMOD_IMS_PCLK (0 << 10) #define S3C64XX_IISMOD_IMS_SYSMUX (1 << 10) @@ -62,6 +67,8 @@ #define S3C2412_IISMOD_BCLK_MASK (3 << 1) #define S3C2412_IISMOD_8BIT (1 << 0) +#define S3C64XX_IISMOD_CDCLKCON (1 << 12) + #define S3C2412_IISPSR_PSREN (1 << 15) #define S3C2412_IISFIC_TXFLUSH (1 << 15) diff --git a/arch/arm/plat-s3c/include/plat/regs-serial.h b/arch/arm/plat-s3c/include/plat/regs-serial.h index 66af75a5cdd1..85d8904e7f24 100644 --- a/arch/arm/plat-s3c/include/plat/regs-serial.h +++ b/arch/arm/plat-s3c/include/plat/regs-serial.h @@ -6,7 +6,7 @@ * * Copyright (C) 2002 Shane Nay (shane@minirl.com) * - * Additional defines, (c) 2003 Simtec Electronics (linux@simtec.co.uk) + * Additional defines, Copyright 2003 Simtec Electronics (linux@simtec.co.uk) * * Adapted from: * diff --git a/arch/arm/plat-s3c/include/plat/sdhci.h b/arch/arm/plat-s3c/include/plat/sdhci.h index f615308ccdfb..53198673b6bd 100644 --- a/arch/arm/plat-s3c/include/plat/sdhci.h +++ b/arch/arm/plat-s3c/include/plat/sdhci.h @@ -57,6 +57,7 @@ struct s3c_sdhci_platdata { */ extern void s3c_sdhci0_set_platdata(struct s3c_sdhci_platdata *pd); extern void s3c_sdhci1_set_platdata(struct s3c_sdhci_platdata *pd); +extern void s3c_sdhci2_set_platdata(struct s3c_sdhci_platdata *pd); /* Default platform data, exported so that per-cpu initialisation can * set the correct one when there are more than one cpu type selected. @@ -64,11 +65,16 @@ extern void s3c_sdhci1_set_platdata(struct s3c_sdhci_platdata *pd); extern struct s3c_sdhci_platdata s3c_hsmmc0_def_platdata; extern struct s3c_sdhci_platdata s3c_hsmmc1_def_platdata; +extern struct s3c_sdhci_platdata s3c_hsmmc2_def_platdata; /* Helper function availablity */ extern void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *, int w); extern void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *, int w); +extern void s5pc100_setup_sdhci0_cfg_gpio(struct platform_device *, int w); +extern void s5pc100_setup_sdhci1_cfg_gpio(struct platform_device *, int w); +extern void s5pc100_setup_sdhci2_cfg_gpio(struct platform_device *, int w); +extern void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *, int w); /* S3C6400 SDHCI setup */ @@ -103,6 +109,17 @@ static inline void s3c6400_default_sdhci1(void) static inline void s3c6400_default_sdhci1(void) { } #endif /* CONFIG_S3C_DEV_HSMMC1 */ +#ifdef CONFIG_S3C_DEV_HSMMC2 +static inline void s3c6400_default_sdhci2(void) +{ + s3c_hsmmc2_def_platdata.clocks = s3c6400_hsmmc_clksrcs; + s3c_hsmmc2_def_platdata.cfg_gpio = s3c64xx_setup_sdhci2_cfg_gpio; + s3c_hsmmc2_def_platdata.cfg_card = s3c6400_setup_sdhci_cfg_card; +} +#else +static inline void s3c6400_default_sdhci2(void) { } +#endif /* CONFIG_S3C_DEV_HSMMC2 */ + #else static inline void s3c6400_default_sdhci0(void) { } static inline void s3c6400_default_sdhci1(void) { } @@ -140,9 +157,70 @@ static inline void s3c6410_default_sdhci1(void) static inline void s3c6410_default_sdhci1(void) { } #endif /* CONFIG_S3C_DEV_HSMMC1 */ +#ifdef CONFIG_S3C_DEV_HSMMC2 +static inline void s3c6410_default_sdhci2(void) +{ + s3c_hsmmc2_def_platdata.clocks = s3c6410_hsmmc_clksrcs; + s3c_hsmmc2_def_platdata.cfg_gpio = s3c64xx_setup_sdhci2_cfg_gpio; + s3c_hsmmc2_def_platdata.cfg_card = s3c6410_setup_sdhci0_cfg_card; +} +#else +static inline void s3c6410_default_sdhci2(void) { } +#endif /* CONFIG_S3C_DEV_HSMMC2 */ + #else static inline void s3c6410_default_sdhci0(void) { } static inline void s3c6410_default_sdhci1(void) { } #endif /* CONFIG_S3C6410_SETUP_SDHCI */ +/* S5PC100 SDHCI setup */ + +#ifdef CONFIG_S5PC100_SETUP_SDHCI +extern char *s5pc100_hsmmc_clksrcs[4]; + +extern void s5pc100_setup_sdhci0_cfg_card(struct platform_device *dev, + void __iomem *r, + struct mmc_ios *ios, + struct mmc_card *card); + +#ifdef CONFIG_S3C_DEV_HSMMC +static inline void s5pc100_default_sdhci0(void) +{ + s3c_hsmmc0_def_platdata.clocks = s5pc100_hsmmc_clksrcs; + s3c_hsmmc0_def_platdata.cfg_gpio = s5pc100_setup_sdhci0_cfg_gpio; + s3c_hsmmc0_def_platdata.cfg_card = s5pc100_setup_sdhci0_cfg_card; +} +#else +static inline void s5pc100_default_sdhci0(void) { } +#endif /* CONFIG_S3C_DEV_HSMMC */ + +#ifdef CONFIG_S3C_DEV_HSMMC1 +static inline void s5pc100_default_sdhci1(void) +{ + s3c_hsmmc1_def_platdata.clocks = s5pc100_hsmmc_clksrcs; + s3c_hsmmc1_def_platdata.cfg_gpio = s5pc100_setup_sdhci1_cfg_gpio; + s3c_hsmmc1_def_platdata.cfg_card = s5pc100_setup_sdhci0_cfg_card; +} +#else +static inline void s5pc100_default_sdhci1(void) { } +#endif /* CONFIG_S3C_DEV_HSMMC1 */ + +#ifdef CONFIG_S3C_DEV_HSMMC2 +static inline void s5pc100_default_sdhci2(void) +{ + s3c_hsmmc2_def_platdata.clocks = s5pc100_hsmmc_clksrcs; + s3c_hsmmc2_def_platdata.cfg_gpio = s5pc100_setup_sdhci2_cfg_gpio; + s3c_hsmmc2_def_platdata.cfg_card = s5pc100_setup_sdhci0_cfg_card; +} +#else +static inline void s5pc100_default_sdhci2(void) { } +#endif /* CONFIG_S3C_DEV_HSMMC1 */ + + +#else +static inline void s5pc100_default_sdhci0(void) { } +static inline void s5pc100_default_sdhci1(void) { } +static inline void s5pc100_default_sdhci2(void) { } +#endif /* CONFIG_S5PC100_SETUP_SDHCI */ + #endif /* __PLAT_S3C_SDHCI_H */ diff --git a/arch/arm/plat-s3c/pm-check.c b/arch/arm/plat-s3c/pm-check.c index 39f2555564da..8eb1f439861c 100644 --- a/arch/arm/plat-s3c/pm-check.c +++ b/arch/arm/plat-s3c/pm-check.c @@ -1,7 +1,7 @@ /* linux/arch/arm/plat-s3c/pm-check.c * originally in linux/arch/arm/plat-s3c24xx/pm.c * - * Copyright (c) 2004,2006,2008 Simtec Electronics + * Copyright (c) 2004-2008 Simtec Electronics * http://armlinux.simtec.co.uk * Ben Dooks <ben@simtec.co.uk> * diff --git a/arch/arm/plat-s3c/pm.c b/arch/arm/plat-s3c/pm.c index 8d97db2c7a0d..767470601e5c 100644 --- a/arch/arm/plat-s3c/pm.c +++ b/arch/arm/plat-s3c/pm.c @@ -1,7 +1,7 @@ /* linux/arch/arm/plat-s3c/pm.c * * Copyright 2008 Openmoko, Inc. - * Copyright 2004,2006,2008 Simtec Electronics + * Copyright 2004-2008 Simtec Electronics * Ben Dooks <ben@simtec.co.uk> * http://armlinux.simtec.co.uk/ * diff --git a/arch/arm/plat-s3c/pwm.c b/arch/arm/plat-s3c/pwm.c new file mode 100644 index 000000000000..4fdc5b307fd2 --- /dev/null +++ b/arch/arm/plat-s3c/pwm.c @@ -0,0 +1,410 @@ +/* arch/arm/plat-s3c/pwm.c + * + * Copyright (c) 2007 Ben Dooks + * Copyright (c) 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk>, <ben-linux@fluff.org> + * + * S3C series PWM device core + * + * 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. +*/ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/err.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/pwm.h> + +#include <mach/irqs.h> +#include <mach/map.h> + +#include <plat/devs.h> +#include <plat/regs-timer.h> + +struct pwm_device { + struct list_head list; + struct platform_device *pdev; + + struct clk *clk_div; + struct clk *clk; + const char *label; + + unsigned int period_ns; + unsigned int duty_ns; + + unsigned char tcon_base; + unsigned char running; + unsigned char use_count; + unsigned char pwm_id; +}; + +#define pwm_dbg(_pwm, msg...) dev_dbg(&(_pwm)->pdev->dev, msg) + +static struct clk *clk_scaler[2]; + +/* Standard setup for a timer block. */ + +#define TIMER_RESOURCE_SIZE (1) + +#define TIMER_RESOURCE(_tmr, _irq) \ + (struct resource [TIMER_RESOURCE_SIZE]) { \ + [0] = { \ + .start = _irq, \ + .end = _irq, \ + .flags = IORESOURCE_IRQ \ + } \ + } + +#define DEFINE_S3C_TIMER(_tmr_no, _irq) \ + .name = "s3c24xx-pwm", \ + .id = _tmr_no, \ + .num_resources = TIMER_RESOURCE_SIZE, \ + .resource = TIMER_RESOURCE(_tmr_no, _irq), \ + +/* since we already have an static mapping for the timer, we do not + * bother setting any IO resource for the base. + */ + +struct platform_device s3c_device_timer[] = { + [0] = { DEFINE_S3C_TIMER(0, IRQ_TIMER0) }, + [1] = { DEFINE_S3C_TIMER(1, IRQ_TIMER1) }, + [2] = { DEFINE_S3C_TIMER(2, IRQ_TIMER2) }, + [3] = { DEFINE_S3C_TIMER(3, IRQ_TIMER3) }, + [4] = { DEFINE_S3C_TIMER(4, IRQ_TIMER4) }, +}; + +static inline int pwm_is_tdiv(struct pwm_device *pwm) +{ + return clk_get_parent(pwm->clk) == pwm->clk_div; +} + +static DEFINE_MUTEX(pwm_lock); +static LIST_HEAD(pwm_list); + +struct pwm_device *pwm_request(int pwm_id, const char *label) +{ + struct pwm_device *pwm; + int found = 0; + + mutex_lock(&pwm_lock); + + list_for_each_entry(pwm, &pwm_list, list) { + if (pwm->pwm_id == pwm_id) { + found = 1; + break; + } + } + + if (found) { + if (pwm->use_count == 0) { + pwm->use_count = 1; + pwm->label = label; + } else + pwm = ERR_PTR(-EBUSY); + } else + pwm = ERR_PTR(-ENOENT); + + mutex_unlock(&pwm_lock); + return pwm; +} + +EXPORT_SYMBOL(pwm_request); + + +void pwm_free(struct pwm_device *pwm) +{ + mutex_lock(&pwm_lock); + + if (pwm->use_count) { + pwm->use_count--; + pwm->label = NULL; + } else + printk(KERN_ERR "PWM%d device already freed\n", pwm->pwm_id); + + mutex_unlock(&pwm_lock); +} + +EXPORT_SYMBOL(pwm_free); + +#define pwm_tcon_start(pwm) (1 << (pwm->tcon_base + 0)) +#define pwm_tcon_invert(pwm) (1 << (pwm->tcon_base + 2)) +#define pwm_tcon_autoreload(pwm) (1 << (pwm->tcon_base + 3)) +#define pwm_tcon_manulupdate(pwm) (1 << (pwm->tcon_base + 1)) + +int pwm_enable(struct pwm_device *pwm) +{ + unsigned long flags; + unsigned long tcon; + + local_irq_save(flags); + + tcon = __raw_readl(S3C2410_TCON); + tcon |= pwm_tcon_start(pwm); + __raw_writel(tcon, S3C2410_TCON); + + local_irq_restore(flags); + + pwm->running = 1; + return 0; +} + +EXPORT_SYMBOL(pwm_enable); + +void pwm_disable(struct pwm_device *pwm) +{ + unsigned long flags; + unsigned long tcon; + + local_irq_save(flags); + + tcon = __raw_readl(S3C2410_TCON); + tcon &= ~pwm_tcon_start(pwm); + __raw_writel(tcon, S3C2410_TCON); + + local_irq_restore(flags); + + pwm->running = 0; +} + +EXPORT_SYMBOL(pwm_disable); + +static unsigned long pwm_calc_tin(struct pwm_device *pwm, unsigned long freq) +{ + unsigned long tin_parent_rate; + unsigned int div; + + tin_parent_rate = clk_get_rate(clk_get_parent(pwm->clk_div)); + pwm_dbg(pwm, "tin parent at %lu\n", tin_parent_rate); + + for (div = 2; div <= 16; div *= 2) { + if ((tin_parent_rate / (div << 16)) < freq) + return tin_parent_rate / div; + } + + return tin_parent_rate / 16; +} + +#define NS_IN_HZ (1000000000UL) + +int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns) +{ + unsigned long tin_rate; + unsigned long tin_ns; + unsigned long period; + unsigned long flags; + unsigned long tcon; + unsigned long tcnt; + long tcmp; + + /* We currently avoid using 64bit arithmetic by using the + * fact that anything faster than 1Hz is easily representable + * by 32bits. */ + + if (period_ns > NS_IN_HZ || duty_ns > NS_IN_HZ) + return -ERANGE; + + if (duty_ns > period_ns) + return -EINVAL; + + if (period_ns == pwm->period_ns && + duty_ns == pwm->duty_ns) + return 0; + + /* The TCMP and TCNT can be read without a lock, they're not + * shared between the timers. */ + + tcmp = __raw_readl(S3C2410_TCMPB(pwm->pwm_id)); + tcnt = __raw_readl(S3C2410_TCNTB(pwm->pwm_id)); + + period = NS_IN_HZ / period_ns; + + pwm_dbg(pwm, "duty_ns=%d, period_ns=%d (%lu)\n", + duty_ns, period_ns, period); + + /* Check to see if we are changing the clock rate of the PWM */ + + if (pwm->period_ns != period_ns) { + if (pwm_is_tdiv(pwm)) { + tin_rate = pwm_calc_tin(pwm, period); + clk_set_rate(pwm->clk_div, tin_rate); + } else + tin_rate = clk_get_rate(pwm->clk); + + pwm->period_ns = period_ns; + + pwm_dbg(pwm, "tin_rate=%lu\n", tin_rate); + + tin_ns = NS_IN_HZ / tin_rate; + tcnt = period_ns / tin_ns; + } else + tin_ns = NS_IN_HZ / clk_get_rate(pwm->clk); + + /* Note, counters count down */ + + tcmp = duty_ns / tin_ns; + tcmp = tcnt - tcmp; + /* the pwm hw only checks the compare register after a decrement, + so the pin never toggles if tcmp = tcnt */ + if (tcmp == tcnt) + tcmp--; + + pwm_dbg(pwm, "tin_ns=%lu, tcmp=%ld/%lu\n", tin_ns, tcmp, tcnt); + + if (tcmp < 0) + tcmp = 0; + + /* Update the PWM register block. */ + + local_irq_save(flags); + + __raw_writel(tcmp, S3C2410_TCMPB(pwm->pwm_id)); + __raw_writel(tcnt, S3C2410_TCNTB(pwm->pwm_id)); + + tcon = __raw_readl(S3C2410_TCON); + tcon |= pwm_tcon_manulupdate(pwm); + tcon |= pwm_tcon_autoreload(pwm); + __raw_writel(tcon, S3C2410_TCON); + + tcon &= ~pwm_tcon_manulupdate(pwm); + __raw_writel(tcon, S3C2410_TCON); + + local_irq_restore(flags); + + return 0; +} + +EXPORT_SYMBOL(pwm_config); + +static int pwm_register(struct pwm_device *pwm) +{ + pwm->duty_ns = -1; + pwm->period_ns = -1; + + mutex_lock(&pwm_lock); + list_add_tail(&pwm->list, &pwm_list); + mutex_unlock(&pwm_lock); + + return 0; +} + +static int s3c_pwm_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct pwm_device *pwm; + unsigned long flags; + unsigned long tcon; + unsigned int id = pdev->id; + int ret; + + if (id == 4) { + dev_err(dev, "TIMER4 is currently not supported\n"); + return -ENXIO; + } + + pwm = kzalloc(sizeof(struct pwm_device), GFP_KERNEL); + if (pwm == NULL) { + dev_err(dev, "failed to allocate pwm_device\n"); + return -ENOMEM; + } + + pwm->pdev = pdev; + pwm->pwm_id = id; + + /* calculate base of control bits in TCON */ + pwm->tcon_base = id == 0 ? 0 : (id * 4) + 4; + + pwm->clk = clk_get(dev, "pwm-tin"); + if (IS_ERR(pwm->clk)) { + dev_err(dev, "failed to get pwm tin clk\n"); + ret = PTR_ERR(pwm->clk); + goto err_alloc; + } + + pwm->clk_div = clk_get(dev, "pwm-tdiv"); + if (IS_ERR(pwm->clk_div)) { + dev_err(dev, "failed to get pwm tdiv clk\n"); + ret = PTR_ERR(pwm->clk_div); + goto err_clk_tin; + } + + local_irq_save(flags); + + tcon = __raw_readl(S3C2410_TCON); + tcon |= pwm_tcon_invert(pwm); + __raw_writel(tcon, S3C2410_TCON); + + local_irq_restore(flags); + + + ret = pwm_register(pwm); + if (ret) { + dev_err(dev, "failed to register pwm\n"); + goto err_clk_tdiv; + } + + pwm_dbg(pwm, "config bits %02x\n", + (__raw_readl(S3C2410_TCON) >> pwm->tcon_base) & 0x0f); + + dev_info(dev, "tin at %lu, tdiv at %lu, tin=%sclk, base %d\n", + clk_get_rate(pwm->clk), + clk_get_rate(pwm->clk_div), + pwm_is_tdiv(pwm) ? "div" : "ext", pwm->tcon_base); + + platform_set_drvdata(pdev, pwm); + return 0; + + err_clk_tdiv: + clk_put(pwm->clk_div); + + err_clk_tin: + clk_put(pwm->clk); + + err_alloc: + kfree(pwm); + return ret; +} + +static int s3c_pwm_remove(struct platform_device *pdev) +{ + struct pwm_device *pwm = platform_get_drvdata(pdev); + + clk_put(pwm->clk_div); + clk_put(pwm->clk); + kfree(pwm); + + return 0; +} + +static struct platform_driver s3c_pwm_driver = { + .driver = { + .name = "s3c24xx-pwm", + .owner = THIS_MODULE, + }, + .probe = s3c_pwm_probe, + .remove = __devexit_p(s3c_pwm_remove), +}; + +static int __init pwm_init(void) +{ + int ret; + + clk_scaler[0] = clk_get(NULL, "pwm-scaler0"); + clk_scaler[1] = clk_get(NULL, "pwm-scaler1"); + + if (IS_ERR(clk_scaler[0]) || IS_ERR(clk_scaler[1])) { + printk(KERN_ERR "%s: failed to get scaler clocks\n", __func__); + return -EINVAL; + } + + ret = platform_driver_register(&s3c_pwm_driver); + if (ret) + printk(KERN_ERR "%s: failed to add pwm driver\n", __func__); + + return ret; +} + +arch_initcall(pwm_init); |