diff options
Diffstat (limited to 'arch/arm/plat-s3c24xx')
| -rw-r--r-- | arch/arm/plat-s3c24xx/Kconfig | 41 | ||||
| -rw-r--r-- | arch/arm/plat-s3c24xx/Makefile | 7 | ||||
| -rw-r--r-- | arch/arm/plat-s3c24xx/cpu.c | 2 | ||||
| -rw-r--r-- | arch/arm/plat-s3c24xx/include/plat/s3c244x.h (renamed from arch/arm/plat-s3c24xx/s3c244x.h) | 2 | ||||
| -rw-r--r-- | arch/arm/plat-s3c24xx/s3c244x-clock.c | 138 | ||||
| -rw-r--r-- | arch/arm/plat-s3c24xx/s3c244x-irq.c | 142 | ||||
| -rw-r--r-- | arch/arm/plat-s3c24xx/s3c244x.c | 196 |
7 files changed, 2 insertions, 526 deletions
diff --git a/arch/arm/plat-s3c24xx/Kconfig b/arch/arm/plat-s3c24xx/Kconfig index a806f359ceb..0cc5760b668 100644 --- a/arch/arm/plat-s3c24xx/Kconfig +++ b/arch/arm/plat-s3c24xx/Kconfig @@ -27,46 +27,6 @@ config S3C24XX_DCLK help Clock code for supporting DCLK/CLKOUT on S3C24XX architectures -config CPU_S3C244X - bool - depends on ARCH_S3C2410 && (CPU_S3C2440 || CPU_S3C2442) - help - Support for S3C2440 and S3C2442 Samsung Mobile CPU based systems. - -config S3C2440_CPUFREQ - bool "S3C2440/S3C2442 CPU Frequency scaling support" - depends on CPU_FREQ_S3C24XX && (CPU_S3C2440 || CPU_S3C2442) - select S3C2410_CPUFREQ_UTILS - default y - help - CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs. - -config S3C2440_XTAL_12000000 - bool - help - Indicate that the build needs to support 12MHz system - crystal. - -config S3C2440_XTAL_16934400 - bool - help - Indicate that the build needs to support 16.9344MHz system - crystal. - -config S3C2440_PLL_12000000 - bool - depends on S3C2440_CPUFREQ && S3C2440_XTAL_12000000 - default y if CPU_FREQ_S3C24XX_PLL - help - PLL tables for S3C2440 or S3C2442 CPUs with 12MHz crystals. - -config S3C2440_PLL_16934400 - bool - depends on S3C2440_CPUFREQ && S3C2440_XTAL_16934400 - default y if CPU_FREQ_S3C24XX_PLL - help - PLL tables for S3C2440 or S3C2442 CPUs with 16.934MHz crystals. - config S3C24XX_PWM bool "PWM device support" select HAVE_PWM @@ -74,7 +34,6 @@ config S3C24XX_PWM Support for exporting the PWM timer blocks via the pwm device system. - # gpio configurations config S3C24XX_GPIO_EXTRA diff --git a/arch/arm/plat-s3c24xx/Makefile b/arch/arm/plat-s3c24xx/Makefile index e0100266d03..c2237c41141 100644 --- a/arch/arm/plat-s3c24xx/Makefile +++ b/arch/arm/plat-s3c24xx/Makefile @@ -25,13 +25,6 @@ obj-$(CONFIG_CPU_FREQ_S3C24XX_DEBUGFS) += cpu-freq-debugfs.o # Architecture dependant builds -obj-$(CONFIG_CPU_S3C244X) += s3c244x.o -obj-$(CONFIG_CPU_S3C244X) += s3c244x-irq.o -obj-$(CONFIG_CPU_S3C244X) += s3c244x-clock.o -obj-$(CONFIG_S3C2440_CPUFREQ) += s3c2440-cpufreq.o -obj-$(CONFIG_S3C2440_PLL_12000000) += s3c2440-pll-12000000.o -obj-$(CONFIG_S3C2440_PLL_16934400) += s3c2440-pll-16934400.o - obj-$(CONFIG_PM_SIMTEC) += pm-simtec.o obj-$(CONFIG_PM) += pm.o obj-$(CONFIG_PM) += irq-pm.o diff --git a/arch/arm/plat-s3c24xx/cpu.c b/arch/arm/plat-s3c24xx/cpu.c index 4af9dd94879..6ecf87af960 100644 --- a/arch/arm/plat-s3c24xx/cpu.c +++ b/arch/arm/plat-s3c24xx/cpu.c @@ -49,7 +49,7 @@ #include <plat/s3c2400.h> #include <plat/s3c2410.h> #include <plat/s3c2412.h> -#include "s3c244x.h" +#include <plat/s3c244x.h> #include <plat/s3c2440.h> #include <plat/s3c2442.h> #include <plat/s3c2443.h> diff --git a/arch/arm/plat-s3c24xx/s3c244x.h b/arch/arm/plat-s3c24xx/include/plat/s3c244x.h index 6aab5eaae2b..8da0904c41a 100644 --- a/arch/arm/plat-s3c24xx/s3c244x.h +++ b/arch/arm/plat-s3c24xx/include/plat/s3c244x.h @@ -1,4 +1,4 @@ -/* linux/arch/arm/plat-s3c24xx/s3c244x.h +/* linux/arch/arm/plat-s3c24xx/include/plat/s3c244x.h * * Copyright (c) 2004-2005 Simtec Electronics * Ben Dooks <ben@simtec.co.uk> diff --git a/arch/arm/plat-s3c24xx/s3c244x-clock.c b/arch/arm/plat-s3c24xx/s3c244x-clock.c deleted file mode 100644 index f8d96130d1d..00000000000 --- a/arch/arm/plat-s3c24xx/s3c244x-clock.c +++ /dev/null @@ -1,138 +0,0 @@ -/* linux/arch/arm/plat-s3c24xx/s3c24xx-clock.c - * - * Copyright (c) 2004-2008 Simtec Electronics - * http://armlinux.simtec.co.uk/ - * Ben Dooks <ben@simtec.co.uk> - * - * S3C2440/S3C2442 Common clock support - * - * 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/init.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/list.h> -#include <linux/errno.h> -#include <linux/err.h> -#include <linux/device.h> -#include <linux/sysdev.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/clk.h> -#include <linux/io.h> - -#include <mach/hardware.h> -#include <asm/atomic.h> -#include <asm/irq.h> - -#include <mach/regs-clock.h> - -#include <plat/clock.h> -#include <plat/cpu.h> - -static int s3c2440_setparent_armclk(struct clk *clk, struct clk *parent) -{ - unsigned long camdivn; - unsigned long dvs; - - if (parent == &clk_f) - dvs = 0; - else if (parent == &clk_h) - dvs = S3C2440_CAMDIVN_DVSEN; - else - return -EINVAL; - - clk->parent = parent; - - camdivn = __raw_readl(S3C2440_CAMDIVN); - camdivn &= ~S3C2440_CAMDIVN_DVSEN; - camdivn |= dvs; - __raw_writel(camdivn, S3C2440_CAMDIVN); - - return 0; -} - -static struct clk clk_arm = { - .name = "armclk", - .id = -1, - .ops = &(struct clk_ops) { - .set_parent = s3c2440_setparent_armclk, - }, -}; - -static int s3c244x_clk_add(struct sys_device *sysdev) -{ - unsigned long camdivn = __raw_readl(S3C2440_CAMDIVN); - unsigned long clkdivn; - struct clk *clock_upll; - int ret; - - printk("S3C244X: Clock Support, DVS %s\n", - (camdivn & S3C2440_CAMDIVN_DVSEN) ? "on" : "off"); - - clk_arm.parent = (camdivn & S3C2440_CAMDIVN_DVSEN) ? &clk_h : &clk_f; - - ret = s3c24xx_register_clock(&clk_arm); - if (ret < 0) { - printk(KERN_ERR "S3C24XX: Failed to add armclk (%d)\n", ret); - return ret; - } - - clock_upll = clk_get(NULL, "upll"); - if (IS_ERR(clock_upll)) { - printk(KERN_ERR "S3C244X: Failed to get upll clock\n"); - return -ENOENT; - } - - /* check rate of UPLL, and if it is near 96MHz, then change - * to using half the UPLL rate for the system */ - - if (clk_get_rate(clock_upll) > (94 * MHZ)) { - clk_usb_bus.rate = clk_get_rate(clock_upll) / 2; - - spin_lock(&clocks_lock); - - clkdivn = __raw_readl(S3C2410_CLKDIVN); - clkdivn |= S3C2440_CLKDIVN_UCLK; - __raw_writel(clkdivn, S3C2410_CLKDIVN); - - spin_unlock(&clocks_lock); - } - - return 0; -} - -static struct sysdev_driver s3c2440_clk_driver = { - .add = s3c244x_clk_add, -}; - -static int s3c2440_clk_init(void) -{ - return sysdev_driver_register(&s3c2440_sysclass, &s3c2440_clk_driver); -} - -arch_initcall(s3c2440_clk_init); - -static struct sysdev_driver s3c2442_clk_driver = { - .add = s3c244x_clk_add, -}; - -static int s3c2442_clk_init(void) -{ - return sysdev_driver_register(&s3c2442_sysclass, &s3c2442_clk_driver); -} - -arch_initcall(s3c2442_clk_init); diff --git a/arch/arm/plat-s3c24xx/s3c244x-irq.c b/arch/arm/plat-s3c24xx/s3c244x-irq.c deleted file mode 100644 index a75c0c2431e..00000000000 --- a/arch/arm/plat-s3c24xx/s3c244x-irq.c +++ /dev/null @@ -1,142 +0,0 @@ -/* linux/arch/arm/plat-s3c24xx/s3c244x-irq.c - * - * Copyright (c) 2003-2004 Simtec Electronics - * 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 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/init.h> -#include <linux/module.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/sysdev.h> -#include <linux/io.h> - -#include <mach/hardware.h> -#include <asm/irq.h> - -#include <asm/mach/irq.h> - -#include <mach/regs-irq.h> -#include <mach/regs-gpio.h> - -#include <plat/cpu.h> -#include <plat/pm.h> -#include <plat/irq.h> - -/* camera irq */ - -static void s3c_irq_demux_cam(unsigned int irq, - struct irq_desc *desc) -{ - unsigned int subsrc, submsk; - - /* read the current pending interrupts, and the mask - * for what it is available */ - - subsrc = __raw_readl(S3C2410_SUBSRCPND); - submsk = __raw_readl(S3C2410_INTSUBMSK); - - subsrc &= ~submsk; - subsrc >>= 11; - subsrc &= 3; - - if (subsrc != 0) { - if (subsrc & 1) { - generic_handle_irq(IRQ_S3C2440_CAM_C); - } - if (subsrc & 2) { - generic_handle_irq(IRQ_S3C2440_CAM_P); - } - } -} - -#define INTMSK_CAM (1UL << (IRQ_CAM - IRQ_EINT0)) - -static void -s3c_irq_cam_mask(unsigned int irqno) -{ - s3c_irqsub_mask(irqno, INTMSK_CAM, 3<<11); -} - -static void -s3c_irq_cam_unmask(unsigned int irqno) -{ - s3c_irqsub_unmask(irqno, INTMSK_CAM); -} - -static void -s3c_irq_cam_ack(unsigned int irqno) -{ - s3c_irqsub_maskack(irqno, INTMSK_CAM, 3<<11); -} - -static struct irq_chip s3c_irq_cam = { - .mask = s3c_irq_cam_mask, - .unmask = s3c_irq_cam_unmask, - .ack = s3c_irq_cam_ack, -}; - -static int s3c244x_irq_add(struct sys_device *sysdev) -{ - unsigned int irqno; - - set_irq_chip(IRQ_NFCON, &s3c_irq_level_chip); - set_irq_handler(IRQ_NFCON, handle_level_irq); - set_irq_flags(IRQ_NFCON, IRQF_VALID); - - /* add chained handler for camera */ - - set_irq_chip(IRQ_CAM, &s3c_irq_level_chip); - set_irq_handler(IRQ_CAM, handle_level_irq); - set_irq_chained_handler(IRQ_CAM, s3c_irq_demux_cam); - - for (irqno = IRQ_S3C2440_CAM_C; irqno <= IRQ_S3C2440_CAM_P; irqno++) { - set_irq_chip(irqno, &s3c_irq_cam); - set_irq_handler(irqno, handle_level_irq); - set_irq_flags(irqno, IRQF_VALID); - } - - return 0; -} - -static struct sysdev_driver s3c2440_irq_driver = { - .add = s3c244x_irq_add, - .suspend = s3c24xx_irq_suspend, - .resume = s3c24xx_irq_resume, -}; - -static int s3c2440_irq_init(void) -{ - return sysdev_driver_register(&s3c2440_sysclass, &s3c2440_irq_driver); -} - -arch_initcall(s3c2440_irq_init); - -static struct sysdev_driver s3c2442_irq_driver = { - .add = s3c244x_irq_add, - .suspend = s3c24xx_irq_suspend, - .resume = s3c24xx_irq_resume, -}; - - -static int s3c2442_irq_init(void) -{ - return sysdev_driver_register(&s3c2442_sysclass, &s3c2442_irq_driver); -} - -arch_initcall(s3c2442_irq_init); diff --git a/arch/arm/plat-s3c24xx/s3c244x.c b/arch/arm/plat-s3c24xx/s3c244x.c deleted file mode 100644 index 12623a474b5..00000000000 --- a/arch/arm/plat-s3c24xx/s3c244x.c +++ /dev/null @@ -1,196 +0,0 @@ -/* linux/arch/arm/plat-s3c24xx/s3c244x.c - * - * Copyright (c) 2004-2006 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * - * Samsung S3C2440 and S3C2442 Mobile CPU support (not S3C2443) - * - * 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/interrupt.h> -#include <linux/list.h> -#include <linux/timer.h> -#include <linux/init.h> -#include <linux/serial_core.h> -#include <linux/platform_device.h> -#include <linux/sysdev.h> -#include <linux/clk.h> -#include <linux/io.h> - -#include <asm/mach/arch.h> -#include <asm/mach/map.h> -#include <asm/mach/irq.h> - -#include <mach/hardware.h> -#include <asm/irq.h> - -#include <plat/cpu-freq.h> - -#include <mach/regs-clock.h> -#include <plat/regs-serial.h> -#include <mach/regs-gpio.h> -#include <mach/regs-gpioj.h> -#include <mach/regs-dsc.h> - -#include <plat/s3c2410.h> -#include <plat/s3c2440.h> -#include "s3c244x.h" -#include <plat/clock.h> -#include <plat/devs.h> -#include <plat/cpu.h> -#include <plat/pm.h> -#include <plat/pll.h> - -static struct map_desc s3c244x_iodesc[] __initdata = { - IODESC_ENT(CLKPWR), - IODESC_ENT(TIMER), - IODESC_ENT(WATCHDOG), -}; - -/* uart initialisation */ - -void __init s3c244x_init_uarts(struct s3c2410_uartcfg *cfg, int no) -{ - s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no); -} - -void __init s3c244x_map_io(void) -{ - /* register our io-tables */ - - iotable_init(s3c244x_iodesc, ARRAY_SIZE(s3c244x_iodesc)); - - /* rename any peripherals used differing from the s3c2410 */ - - s3c_device_sdi.name = "s3c2440-sdi"; - s3c_device_i2c0.name = "s3c2440-i2c"; - s3c_device_nand.name = "s3c2440-nand"; - s3c_device_ts.name = "s3c2440-ts"; - s3c_device_usbgadget.name = "s3c2440-usbgadget"; -} - -void __init_or_cpufreq s3c244x_setup_clocks(void) -{ - struct clk *xtal_clk; - unsigned long clkdiv; - unsigned long camdiv; - unsigned long xtal; - unsigned long hclk, fclk, pclk; - int hdiv = 1; - - xtal_clk = clk_get(NULL, "xtal"); - xtal = clk_get_rate(xtal_clk); - clk_put(xtal_clk); - - fclk = s3c24xx_get_pll(__raw_readl(S3C2410_MPLLCON), xtal) * 2; - - clkdiv = __raw_readl(S3C2410_CLKDIVN); - camdiv = __raw_readl(S3C2440_CAMDIVN); - - /* work out clock scalings */ - - switch (clkdiv & S3C2440_CLKDIVN_HDIVN_MASK) { - case S3C2440_CLKDIVN_HDIVN_1: - hdiv = 1; - break; - - case S3C2440_CLKDIVN_HDIVN_2: - hdiv = 2; - break; - - case S3C2440_CLKDIVN_HDIVN_4_8: - hdiv = (camdiv & S3C2440_CAMDIVN_HCLK4_HALF) ? 8 : 4; - break; - - case S3C2440_CLKDIVN_HDIVN_3_6: - hdiv = (camdiv & S3C2440_CAMDIVN_HCLK3_HALF) ? 6 : 3; - break; - } - - hclk = fclk / hdiv; - pclk = hclk / ((clkdiv & S3C2440_CLKDIVN_PDIVN) ? 2 : 1); - - /* print brief summary of clocks, etc */ - - printk("S3C244X: core %ld.%03ld MHz, memory %ld.%03ld MHz, peripheral %ld.%03ld MHz\n", - print_mhz(fclk), print_mhz(hclk), print_mhz(pclk)); - - s3c24xx_setup_clocks(fclk, hclk, pclk); -} - -void __init s3c244x_init_clocks(int xtal) -{ - /* initialise the clocks here, to allow other things like the - * console to use them, and to add new ones after the initialisation - */ - - s3c24xx_register_baseclocks(xtal); - s3c244x_setup_clocks(); - s3c2410_baseclk_add(); -} - -#ifdef CONFIG_PM - -static struct sleep_save s3c244x_sleep[] = { - SAVE_ITEM(S3C2440_DSC0), - SAVE_ITEM(S3C2440_DSC1), - SAVE_ITEM(S3C2440_GPJDAT), - SAVE_ITEM(S3C2440_GPJCON), - SAVE_ITEM(S3C2440_GPJUP) -}; - -static int s3c244x_suspend(struct sys_device *dev, pm_message_t state) -{ - s3c_pm_do_save(s3c244x_sleep, ARRAY_SIZE(s3c244x_sleep)); - return 0; -} - -static int s3c244x_resume(struct sys_device *dev) -{ - s3c_pm_do_restore(s3c244x_sleep, ARRAY_SIZE(s3c244x_sleep)); - return 0; -} - -#else -#define s3c244x_suspend NULL -#define s3c244x_resume NULL -#endif - -/* Since the S3C2442 and S3C2440 share items, put both sysclasses here */ - -struct sysdev_class s3c2440_sysclass = { - .name = "s3c2440-core", - .suspend = s3c244x_suspend, - .resume = s3c244x_resume -}; - -struct sysdev_class s3c2442_sysclass = { - .name = "s3c2442-core", - .suspend = s3c244x_suspend, - .resume = s3c244x_resume -}; - -/* need to register class before we actually register the device, and - * we also need to ensure that it has been initialised before any of the - * drivers even try to use it (even if not on an s3c2440 based system) - * as a driver which may support both 2410 and 2440 may try and use it. -*/ - -static int __init s3c2440_core_init(void) -{ - return sysdev_class_register(&s3c2440_sysclass); -} - -core_initcall(s3c2440_core_init); - -static int __init s3c2442_core_init(void) -{ - return sysdev_class_register(&s3c2442_sysclass); -} - -core_initcall(s3c2442_core_init); |