diff options
Diffstat (limited to 'arch/arm/mach-pxa')
| -rw-r--r-- | arch/arm/mach-pxa/Kconfig | 34 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/Makefile | 47 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/clock.c | 79 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/clock.h | 43 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/cm-x270-pci.c | 218 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/cm-x270-pci.h | 13 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/cm-x270.c | 645 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/devices.h | 3 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/generic.c | 184 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/generic.h | 26 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/irq.c | 80 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/lubbock.c | 19 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/mainstone.c | 19 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/mfp.c | 235 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/pxa25x.c | 90 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/pxa27x.c | 127 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/pxa300.c | 93 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/pxa320.c | 88 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/pxa3xx.c | 216 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/time.c | 53 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/zylonite.c | 184 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/zylonite_pxa300.c | 188 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/zylonite_pxa320.c | 173 |
23 files changed, 2656 insertions, 201 deletions
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig index 5ebec6d..656d496 100644 --- a/arch/arm/mach-pxa/Kconfig +++ b/arch/arm/mach-pxa/Kconfig @@ -1,6 +1,24 @@ if ARCH_PXA -menu "Intel PXA2xx Implementations" +menu "Intel PXA2xx/PXA3xx Implementations" + +if PXA3xx + +menu "Supported PXA3xx Processor Variants" + +config CPU_PXA300 + bool "PXA300 (codename Monahans-L)" + +config CPU_PXA310 + bool "PXA310 (codename Monahans-LV)" + select CPU_PXA300 + +config CPU_PXA320 + bool "PXA320 (codename Monahans-P)" + +endmenu + +endif choice prompt "Select target board" @@ -41,6 +59,15 @@ config MACH_EM_X270 bool "CompuLab EM-x270 platform" select PXA27x +config MACH_ZYLONITE + bool "PXA3xx Development Platform" + select PXA3xx + +config MACH_ARMCORE + bool "CompuLab CM-X270 modules" + select PXA27x + select IWMMXT + endchoice if PXA_SHARPSL @@ -130,6 +157,11 @@ config PXA27x help Select code specific to PXA27x variants +config PXA3xx + bool + help + Select code specific to PXA3xx variants + config PXA_SHARP_C7xx bool select PXA_SSP diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile index 7d6ab5c..4263527 100644 --- a/arch/arm/mach-pxa/Makefile +++ b/arch/arm/mach-pxa/Makefile @@ -3,36 +3,51 @@ # # Common support (must be linked before board specific support) -obj-y += clock.o generic.o irq.o dma.o time.o -obj-$(CONFIG_PXA25x) += pxa25x.o -obj-$(CONFIG_PXA27x) += pxa27x.o +obj-y += clock.o generic.o irq.o dma.o time.o +obj-$(CONFIG_PXA25x) += pxa25x.o +obj-$(CONFIG_PXA27x) += pxa27x.o +obj-$(CONFIG_PXA3xx) += pxa3xx.o mfp.o +obj-$(CONFIG_CPU_PXA300) += pxa300.o +obj-$(CONFIG_CPU_PXA320) += pxa320.o # Specific board support -obj-$(CONFIG_ARCH_LUBBOCK) += lubbock.o +obj-$(CONFIG_ARCH_LUBBOCK) += lubbock.o obj-$(CONFIG_MACH_LOGICPD_PXA270) += lpd270.o -obj-$(CONFIG_MACH_MAINSTONE) += mainstone.o -obj-$(CONFIG_ARCH_PXA_IDP) += idp.o +obj-$(CONFIG_MACH_MAINSTONE) += mainstone.o +obj-$(CONFIG_ARCH_PXA_IDP) += idp.o obj-$(CONFIG_MACH_TRIZEPS4) += trizeps4.o obj-$(CONFIG_PXA_SHARP_C7xx) += corgi.o corgi_ssp.o corgi_lcd.o sharpsl_pm.o corgi_pm.o obj-$(CONFIG_PXA_SHARP_Cxx00) += spitz.o corgi_ssp.o corgi_lcd.o sharpsl_pm.o spitz_pm.o obj-$(CONFIG_MACH_AKITA) += akita-ioexp.o obj-$(CONFIG_MACH_POODLE) += poodle.o corgi_ssp.o -obj-$(CONFIG_MACH_TOSA) += tosa.o -obj-$(CONFIG_MACH_EM_X270) += em-x270.o +obj-$(CONFIG_MACH_TOSA) += tosa.o +obj-$(CONFIG_MACH_EM_X270) += em-x270.o + +ifeq ($(CONFIG_MACH_ZYLONITE),y) + obj-y += zylonite.o + obj-$(CONFIG_CPU_PXA300) += zylonite_pxa300.o + obj-$(CONFIG_CPU_PXA320) += zylonite_pxa320.o +endif + +obj-$(CONFIG_MACH_ARMCORE) += cm-x270.o # Support for blinky lights led-y := leds.o -led-$(CONFIG_ARCH_LUBBOCK) += leds-lubbock.o -led-$(CONFIG_MACH_MAINSTONE) += leds-mainstone.o -led-$(CONFIG_ARCH_PXA_IDP) += leds-idp.o -led-$(CONFIG_MACH_TRIZEPS4) += leds-trizeps4.o +led-$(CONFIG_ARCH_LUBBOCK) += leds-lubbock.o +led-$(CONFIG_MACH_MAINSTONE) += leds-mainstone.o +led-$(CONFIG_ARCH_PXA_IDP) += leds-idp.o +led-$(CONFIG_MACH_TRIZEPS4) += leds-trizeps4.o -obj-$(CONFIG_LEDS) += $(led-y) +obj-$(CONFIG_LEDS) += $(led-y) # Misc features -obj-$(CONFIG_PM) += pm.o sleep.o -obj-$(CONFIG_PXA_SSP) += ssp.o +obj-$(CONFIG_PM) += pm.o sleep.o +obj-$(CONFIG_PXA_SSP) += ssp.o ifeq ($(CONFIG_PXA27x),y) -obj-$(CONFIG_PM) += standby.o +obj-$(CONFIG_PM) += standby.o +endif + +ifeq ($(CONFIG_PCI),y) +obj-$(CONFIG_MACH_ARMCORE) += cm-x270-pci.o endif diff --git a/arch/arm/mach-pxa/clock.c b/arch/arm/mach-pxa/clock.c index 34a31ca..83ef5ec 100644 --- a/arch/arm/mach-pxa/clock.c +++ b/arch/arm/mach-pxa/clock.c @@ -9,19 +9,15 @@ #include <linux/string.h> #include <linux/clk.h> #include <linux/spinlock.h> +#include <linux/platform_device.h> +#include <linux/delay.h> #include <asm/arch/pxa-regs.h> #include <asm/hardware.h> -struct clk { - struct list_head node; - unsigned long rate; - struct module *owner; - const char *name; - unsigned int enabled; - void (*enable)(void); - void (*disable)(void); -}; +#include "devices.h" +#include "generic.h" +#include "clock.h" static LIST_HEAD(clocks); static DEFINE_MUTEX(clocks_mutex); @@ -33,7 +29,8 @@ struct clk *clk_get(struct device *dev, const char *id) mutex_lock(&clocks_mutex); list_for_each_entry(p, &clocks, node) { - if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) { + if (strcmp(id, p->name) == 0 && + (p->dev == NULL || p->dev == dev)) { clk = p; break; } @@ -46,7 +43,6 @@ EXPORT_SYMBOL(clk_get); void clk_put(struct clk *clk) { - module_put(clk->owner); } EXPORT_SYMBOL(clk_put); @@ -56,8 +52,12 @@ int clk_enable(struct clk *clk) spin_lock_irqsave(&clocks_lock, flags); if (clk->enabled++ == 0) - clk->enable(); + clk->ops->enable(clk); spin_unlock_irqrestore(&clocks_lock, flags); + + if (clk->delay) + udelay(clk->delay); + return 0; } EXPORT_SYMBOL(clk_enable); @@ -70,54 +70,75 @@ void clk_disable(struct clk *clk) spin_lock_irqsave(&clocks_lock, flags); if (--clk->enabled == 0) - clk->disable(); + clk->ops->disable(clk); spin_unlock_irqrestore(&clocks_lock, flags); } EXPORT_SYMBOL(clk_disable); unsigned long clk_get_rate(struct clk *clk) { - return clk->rate; + unsigned long rate; + + rate = clk->rate; + if (clk->ops->getrate) + rate = clk->ops->getrate(clk); + + return rate; } EXPORT_SYMBOL(clk_get_rate); -static void clk_gpio27_enable(void) +static void clk_gpio27_enable(struct clk *clk) { pxa_gpio_mode(GPIO11_3_6MHz_MD); } -static void clk_gpio27_disable(void) +static void clk_gpio27_disable(struct clk *clk) { } -static struct clk clk_gpio27 = { - .name = "GPIO27_CLK", - .rate = 3686400, +static const struct clkops clk_gpio27_ops = { .enable = clk_gpio27_enable, .disable = clk_gpio27_disable, }; -int clk_register(struct clk *clk) + +void clk_cken_enable(struct clk *clk) { - mutex_lock(&clocks_mutex); - list_add(&clk->node, &clocks); - mutex_unlock(&clocks_mutex); - return 0; + CKEN |= 1 << clk->cken; } -EXPORT_SYMBOL(clk_register); -void clk_unregister(struct clk *clk) +void clk_cken_disable(struct clk *clk) { + CKEN &= ~(1 << clk->cken); +} + +const struct clkops clk_cken_ops = { + .enable = clk_cken_enable, + .disable = clk_cken_disable, +}; + +static struct clk common_clks[] = { + { + .name = "GPIO27_CLK", + .ops = &clk_gpio27_ops, + .rate = 3686400, + }, +}; + +void clks_register(struct clk *clks, size_t num) +{ + int i; + mutex_lock(&clocks_mutex); - list_del(&clk->node); + for (i = 0; i < num; i++) + list_add(&clks[i].node, &clocks); mutex_unlock(&clocks_mutex); } -EXPORT_SYMBOL(clk_unregister); static int __init clk_init(void) { - clk_register(&clk_gpio27); + clks_register(common_clks, ARRAY_SIZE(common_clks)); return 0; } arch_initcall(clk_init); diff --git a/arch/arm/mach-pxa/clock.h b/arch/arm/mach-pxa/clock.h new file mode 100644 index 0000000..bc6b77e --- /dev/null +++ b/arch/arm/mach-pxa/clock.h @@ -0,0 +1,43 @@ +struct clk; + +struct clkops { + void (*enable)(struct clk *); + void (*disable)(struct clk *); + unsigned long (*getrate)(struct clk *); +}; + +struct clk { + struct list_head node; + const char *name; + struct device *dev; + const struct clkops *ops; + unsigned long rate; + unsigned int cken; + unsigned int delay; + unsigned int enabled; +}; + +#define INIT_CKEN(_name, _cken, _rate, _delay, _dev) \ + { \ + .name = _name, \ + .dev = _dev, \ + .ops = &clk_cken_ops, \ + .rate = _rate, \ + .cken = CKEN_##_cken, \ + .delay = _delay, \ + } + +#define INIT_CK(_name, _cken, _ops, _dev) \ + { \ + .name = _name, \ + .dev = _dev, \ + .ops = _ops, \ + .cken = CKEN_##_cken, \ + } + +extern const struct clkops clk_cken_ops; + +void clk_cken_enable(struct clk *clk); +void clk_cken_disable(struct clk *clk); + +void clks_register(struct clk *clks, size_t num); diff --git a/arch/arm/mach-pxa/cm-x270-pci.c b/arch/arm/mach-pxa/cm-x270-pci.c new file mode 100644 index 0000000..878d3b9 --- /dev/null +++ b/arch/arm/mach-pxa/cm-x270-pci.c @@ -0,0 +1,218 @@ +/* + * linux/arch/arm/mach-pxa/cm-x270-pci.c + * + * PCI bios-type initialisation for PCI machines + * + * Bits taken from various places. + * + * Copyright (C) 2007 Compulab, Ltd. + * Mike Rapoport <mike@compulab.co.il> + * + * 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/pci.h> +#include <linux/init.h> +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/irq.h> + +#include <asm/mach/pci.h> +#include <asm/arch/cm-x270.h> +#include <asm/arch/pxa-regs.h> +#include <asm/mach-types.h> + +#include <asm/hardware/it8152.h> + +unsigned long it8152_base_address = CMX270_IT8152_VIRT; + +/* + * Only first 64MB of memory can be accessed via PCI. + * We use GFP_DMA to allocate safe buffers to do map/unmap. + * This is really ugly and we need a better way of specifying + * DMA-capable regions of memory. + */ +void __init cmx270_pci_adjust_zones(int node, unsigned long *zone_size, + unsigned long *zhole_size) +{ + unsigned int sz = SZ_64M >> PAGE_SHIFT; + + printk(KERN_INFO "Adjusting zones for CM-x270\n"); + + /* + * Only adjust if > 64M on current system + */ + if (node || (zone_size[0] <= sz)) + return; + + zone_size[1] = zone_size[0] - sz; + zone_size[0] = sz; + zhole_size[1] = zhole_size[0]; + zhole_size[0] = 0; +} + +static void cmx270_it8152_irq_demux(unsigned int irq, struct irq_desc *desc) +{ + /* clear our parent irq */ + GEDR(GPIO_IT8152_IRQ) = GPIO_bit(GPIO_IT8152_IRQ); + + it8152_irq_demux(irq, desc); +} + +void __cmx270_pci_init_irq(void) +{ + it8152_init_irq(); + pxa_gpio_mode(IRQ_TO_GPIO(GPIO_IT8152_IRQ)); + set_irq_type(IRQ_GPIO(GPIO_IT8152_IRQ), IRQT_RISING); + + set_irq_chained_handler(IRQ_GPIO(GPIO_IT8152_IRQ), + cmx270_it8152_irq_demux); +} + +#ifdef CONFIG_PM +static unsigned long sleep_save_ite[10]; + +void __cmx270_pci_suspend(void) +{ + /* save ITE state */ + sleep_save_ite[0] = __raw_readl(IT8152_INTC_PDCNIMR); + sleep_save_ite[1] = __raw_readl(IT8152_INTC_LPCNIMR); + sleep_save_ite[2] = __raw_readl(IT8152_INTC_LPNIAR); + + /* Clear ITE IRQ's */ + __raw_writel((0), IT8152_INTC_PDCNIRR); + __raw_writel((0), IT8152_INTC_LPCNIRR); +} + +void __cmx270_pci_resume(void) +{ + /* restore IT8152 state */ + __raw_writel((sleep_save_ite[0]), IT8152_INTC_PDCNIMR); + __raw_writel((sleep_save_ite[1]), IT8152_INTC_LPCNIMR); + __raw_writel((sleep_save_ite[2]), IT8152_INTC_LPNIAR); +} +#else +void cmx270_pci_suspend(void) {} +void cmx270_pci_resume(void) {} +#endif + +/* PCI IRQ mapping*/ +static int __init cmx270_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +{ + int irq; + + printk(KERN_DEBUG "===> %s: %s slot=%x, pin=%x\n", __FUNCTION__, + pci_name(dev), slot, pin); + + irq = it8152_pci_map_irq(dev, slot, pin); + if (irq) + return irq; + + /* + Here comes the ugly part. The routing is baseboard specific, + but defining a platform for each possible base of CM-x270 is + unrealistic. Here we keep mapping for ATXBase and SB-x270. + */ + /* ATXBASE PCI slot */ + if (slot == 7) + return IT8152_PCI_INTA; + + /* ATXBase/SB-x270 CardBus */ + if (slot == 8 || slot == 0) + return IT8152_PCI_INTB; + + /* ATXBase Ethernet */ + if (slot == 9) + return IT8152_PCI_INTA; + + /* SB-x270 Ethernet */ + if (slot == 16) + return IT8152_PCI_INTA; + + /* PC104+ interrupt routing */ + if ((slot == 17) || (slot == 19)) + return IT8152_PCI_INTA; + if ((slot == 18) || (slot == 20)) + return IT8152_PCI_INTB; + + return(0); +} + +static struct pci_bus * __init +cmx270_pci_scan_bus(int nr, struct pci_sys_data *sys) +{ + printk(KERN_INFO "Initializing CM-X270 PCI subsystem\n"); + + __raw_writel(0x800, IT8152_PCI_CFG_ADDR); + if (__raw_readl(IT8152_PCI_CFG_DATA) == 0x81521283) { + printk(KERN_INFO "PCI Bridge found.\n"); + + /* set PCI I/O base at 0 */ + writel(0x848, IT8152_PCI_CFG_ADDR); + writel(0, IT8152_PCI_CFG_DATA); + + /* set PCI memory base at 0 */ + writel(0x840, IT8152_PCI_CFG_ADDR); + writel(0, IT8152_PCI_CFG_DATA); + + writel(0x20, IT8152_GPIO_GPDR); + + /* CardBus Controller on ATXbase baseboard */ + writel(0x4000, IT8152_PCI_CFG_ADDR); + if (readl(IT8152_PCI_CFG_DATA) == 0xAC51104C) { + printk(KERN_INFO "CardBus Bridge found.\n"); + + /* Configure socket 0 */ + writel(0x408C, IT8152_PCI_CFG_ADDR); + writel(0x1022, IT8152_PCI_CFG_DATA); + + writel(0x4080, IT8152_PCI_CFG_ADDR); + writel(0x3844d060, IT8152_PCI_CFG_DATA); + + writel(0x4090, IT8152_PCI_CFG_ADDR); + writel(((readl(IT8152_PCI_CFG_DATA) & 0xffff) | + 0x60440000), + IT8152_PCI_CFG_DATA); + + writel(0x4018, IT8152_PCI_CFG_ADDR); + writel(0xb0000000, IT8152_PCI_CFG_DATA); + + /* Configure socket 1 */ + writel(0x418C, IT8152_PCI_CFG_ADDR); + writel(0x1022, IT8152_PCI_CFG_DATA); + + writel(0x4180, IT8152_PCI_CFG_ADDR); + writel(0x3844d060, IT8152_PCI_CFG_DATA); + + writel(0x4190, IT8152_PCI_CFG_ADDR); + writel(((readl(IT8152_PCI_CFG_DATA) & 0xffff) | + 0x60440000), + IT8152_PCI_CFG_DATA); + + writel(0x4118, IT8152_PCI_CFG_ADDR); + writel(0xb0000000, IT8152_PCI_CFG_DATA); + } + } + return it8152_pci_scan_bus(nr, sys); +} + +static struct hw_pci cmx270_pci __initdata = { + .swizzle = pci_std_swizzle, + .map_irq = cmx270_pci_map_irq, + .nr_controllers = 1, + .setup = it8152_pci_setup, + .scan = cmx270_pci_scan_bus, +}; + +static int __init cmx270_init_pci(void) +{ + if (machine_is_armcore()) + pci_common_init(&cmx270_pci); + + return 0; +} + +subsys_initcall(cmx270_init_pci); diff --git a/arch/arm/mach-pxa/cm-x270-pci.h b/arch/arm/mach-pxa/cm-x270-pci.h new file mode 100644 index 0000000..ffe37b6 --- /dev/null +++ b/arch/arm/mach-pxa/cm-x270-pci.h @@ -0,0 +1,13 @@ +extern void __cmx270_pci_init_irq(void); +extern void __cmx270_pci_suspend(void); +extern void __cmx270_pci_resume(void); + +#ifdef CONFIG_PCI +#define cmx270_pci_init_irq __cmx270_pci_init_irq +#define cmx270_pci_suspend __cmx270_pci_suspend +#define cmx270_pci_resume __cmx270_pci_resume +#else +#define cmx270_pci_init_irq() do {} while (0) +#define cmx270_pci_suspend() do {} while (0) +#define cmx270_pci_resume() do {} while (0) +#endif diff --git a/arch/arm/mach-pxa/cm-x270.c b/arch/arm/mach-pxa/cm-x270.c new file mode 100644 index 0000000..177664c --- /dev/null +++ b/arch/arm/mach-pxa/cm-x270.c @@ -0,0 +1,645 @@ +/* + * linux/arch/arm/mach-pxa/cm-x270.c + * + * Copyright (C) 2007 CompuLab, Ltd. + * Mike Rapoport <mike@compulab.co.il> + * + * 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/types.h> +#include <linux/pm.h> +#include <linux/fb.h> +#include <linux/platform_device.h> +#include <linux/irq.h> +#include <linux/sysdev.h> +#include <linux/io.h> +#include <linux/delay.h> + +#include <linux/dm9000.h> +#include <linux/rtc-v3020.h> +#include <linux/serial_8250.h> + +#include <video/mbxfb.h> + +#include <asm/mach/arch.h> +#include <asm/mach-types.h> +#include <asm/mach/map.h> + +#include <asm/arch/pxa-regs.h> +#include <asm/arch/pxafb.h> +#include <asm/arch/ohci.h> +#include <asm/arch/mmc.h> +#include <asm/arch/bitfield.h> +#include <asm/arch/cm-x270.h> + +#include <asm/hardware/it8152.h> + +#include "generic.h" +#include "cm-x270-pci.h" + +#define RTC_PHYS_BASE (PXA_CS1_PHYS + (5 << 22)) +#define DM9000_PHYS_BASE (PXA_CS1_PHYS + (6 << 22)) + +static struct resource cmx270_dm9k_resource[] = { + [0] = { + .start = DM9000_PHYS_BASE, + .end = DM9000_PHYS_BASE + 4, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = DM9000_PHYS_BASE + 8, + .end = DM9000_PHYS_BASE + 8 + 500, + .flags = IORESOURCE_MEM, + }, + [2] = { + .start = CMX270_ETHIRQ, + .end = CMX270_ETHIRQ, + .flags = IORESOURCE_IRQ, + } +}; + +/* for the moment we limit ourselves to 32bit IO until some + * better IO routines can be written and tested + */ +static struct dm9000_plat_data cmx270_dm9k_platdata = { + .flags = DM9000_PLATF_32BITONLY, +}; + +/* Ethernet device */ +static struct platform_device cmx270_device_dm9k = { + .name = "dm9000", + .id = 0, + .num_resources = ARRAY_SIZE(cmx270_dm9k_resource), + .resource = cmx270_dm9k_resource, + .dev = { + .platform_data = &cmx270_dm9k_platdata, + } +}; + +/* audio device */ +static struct platform_device cmx270_audio_device = { + .name = "pxa2xx-ac97", + .id = -1, +}; + +/* touchscreen controller */ +static struct platform_device cmx270_ts_device = { + .name = "ucb1400_ts", + .id = -1, +}; + +/* RTC */ +static struct resource cmx270_v3020_resource[] = { + [0] = { + .start = RTC_PHYS_BASE, + .end = RTC_PHYS_BASE + 4, + .flags = IORESOURCE_MEM, + }, +}; + +struct v3020_platform_data cmx270_v3020_pdata = { + .leftshift = 16, +}; + +static struct platform_device cmx270_rtc_device = { + .name = "v3020", + .num_resources = ARRAY_SIZE(cmx270_v3020_resource), + .resource = cmx270_v3020_resource, + .id = -1, + .dev = { + .platform_data = &cmx270_v3020_pdata, + } +}; + +/* + * CM-X270 LEDs + */ +static struct platform_device cmx270_led_device = { + .name = "cm-x270-led", + .id = -1, +}; + +/* 2700G graphics */ +static u64 fb_dma_mask = ~(u64)0; + +static struct resource cmx270_2700G_resource[] = { + /* frame buffer memory including ODFB and External SDRAM */ + [0] = { + .start = MARATHON_PHYS, + .end = MARATHON_PHYS + 0x02000000, + .flags = IORESOURCE_MEM, + }, + /* Marathon registers */ + [1] = { + .start = MARATHON_PHYS + 0x03fe0000, + .end = MARATHON_PHYS + 0x03ffffff, + .flags = IORESOURCE_MEM, + }, +}; + +static unsigned long save_lcd_regs[10]; + +static int cmx270_marathon_probe(struct fb_info *fb) +{ + /* save PXA-270 pin settings before enabling 2700G */ + save_lcd_regs[0] = GPDR1; + save_lcd_regs[1] = GPDR2; + save_lcd_regs[2] = GAFR1_U; + save_lcd_regs[3] = GAFR2_L; + save_lcd_regs[4] = GAFR2_U; + + /* Disable PXA-270 on-chip controller driving pins */ + GPDR1 &= ~(0xfc000000); + GPDR2 &= ~(0x00c03fff); + GAFR1_U &= ~(0xfff00000); + GAFR2_L &= ~(0x0fffffff); + GAFR2_U &= ~(0x0000f000); + return 0; +} + +static int cmx270_marathon_remove(struct fb_info *fb) +{ + GPDR1 = save_lcd_regs[0]; + GPDR2 = save_lcd_regs[1]; + GAFR1_U = save_lcd_regs[2]; + GAFR2_L = save_lcd_regs[3]; + GAFR2_U = save_lcd_regs[4]; + return 0; +} + +static struct mbxfb_platform_data cmx270_2700G_data = { + .xres = { + .min = 240, + .max = 1200, + .defval = 640, + }, + .yres = { + .min = 240, + .max = 1200, + .defval = 480, + }, + .bpp = { + .min = 16, + .max = 32, + .defval = 16, + }, + .memsize = 8*1024*1024, + .probe = cmx270_marathon_probe, + .remove = cmx270_marathon_remove, +}; + +static struct platform_device cmx270_2700G = { + .name = "mbx-fb", + .dev = { + .platform_data = &cmx270_2700G_data, + .dma_mask = &fb_dma_mask, + .coherent_dma_mask = 0xffffffff, + }, + .num_resources = ARRAY_SIZE(cmx270_2700G_resource), + .resource = cmx270_2700G_resource, + .id = -1, +}; + +static u64 ata_dma_mask = ~(u64)0; + +static struct platform_device cmx270_ata = { + .name = "pata_cm_x270", + .id = -1, + .dev = { + .dma_mask = &ata_dma_mask, + .coherent_dma_mask = 0xffffffff, + }, +}; + +/* platform devices */ +static struct platform_device *platform_devices[] __initdata = { + &cmx270_device_dm9k, + &cmx270_audio_device, + &cmx270_rtc_device, + &cmx270_2700G, + &cmx270_led_device, + &cmx270_ts_device, + &cmx270_ata, +}; + +/* Map PCI companion and IDE/General Purpose CS statically */ +static struct map_desc cmx270_io_desc[] __initdata = { + [0] = { /* IDE/general purpose space */ + .virtual = CMX270_IDE104_VIRT, + .pfn = __phys_to_pfn(CMX270_IDE104_PHYS), + .length = SZ_64M - SZ_8M, + .type = MT_DEVICE + }, + [1] = { /* PCI bridge */ + .virtual = CMX270_IT8152_VIRT, + .pfn = __phys_to_pfn(CMX270_IT8152_PHYS), + .length = SZ_64M, + .type = MT_DEVICE + }, +}; + +/* + Display definitions + keep these for backwards compatibility, although symbolic names (as + e.g. in lpd270.c) looks better +*/ +#define MTYPE_STN320x240 0 +#define MTYPE_TFT640x480 1 +#define MTYPE_CRT640x480 2 +#define MTYPE_CRT800x600 3 +#define MTYPE_TFT320x240 6 +#define MTYPE_STN640x480 7 + +static struct pxafb_mode_info generic_stn_320x240_mode = { + .pixclock = 76923, + .bpp = 8, + .xres = 320, + .yres = 240, + .hsync_len = 3, + .vsync_len = 2, + .left_margin = 3, + .upper_margin = 0, + .right_margin = 3, + .lower_margin = 0, + .sync = (FB_SYNC_HOR_HIGH_ACT | + FB_SYNC_VERT_HIGH_ACT), + .cmap_greyscale = 0, +}; + +static struct pxafb_mach_info generic_stn_320x240 = { + .modes = &generic_stn_320x240_mode, + .num_modes = 1, + .lccr0 = 0, + .lccr3 = (LCCR3_PixClkDiv(0x03) | + LCCR3_Acb(0xff) | + LCCR3_PCP), + .cmap_inverse = 0, + .cmap_static = 0, +}; + +static struct pxafb_mode_info generic_tft_640x480_mode = { + .pixclock = 38461, + .bpp = 8, + .xres = 640, + .yres = 480, + .hsync_len = 60, + .vsync_len = 2, + .left_margin = 70, + .upper_margin = 10, + .right_margin = 70, + .lower_margin = 5, + .sync = 0, + .cmap_greyscale = 0, +}; + +static struct pxafb_mach_info generic_tft_640x480 = { + .modes = &generic_tft_640x480_mode, + .num_modes = 1, + .lccr0 = (LCCR0_PAS), + .lccr3 = (LCCR3_PixClkDiv(0x01) | + LCCR3_Acb(0xff) | + LCCR3_PCP), + .cmap_inverse = 0, + .cmap_static = 0, +}; + +static struct pxafb_mode_info generic_crt_640x480_mode = { + .pixclock = 38461, + .bpp = 8, + .xres = 640, + .yres = 480, + .hsync_len = 63, + .vsync_len = 2, + .left_margin = 81, + .upper_margin = 33, + .right_margin = 16, + .lower_margin = 10, + .sync = (FB_SYNC_HOR_HIGH_ACT | + FB_SYNC_VERT_HIGH_ACT), + .cmap_greyscale = 0, +}; + +static struct pxafb_mach_info generic_crt_640x480 = { + .modes = &generic_crt_640x480_mode, + .num_modes = 1, + .lccr0 = (LCCR0_PAS), + .lccr3 = (LCCR3_PixClkDiv(0x01) | + LCCR3_Acb(0xff)), + .cmap_inverse = 0, + .cmap_static = 0, +}; + +static struct pxafb_mode_info generic_crt_800x600_mode = { + .pixclock = 28846, + .bpp = 8, + .xres = 800, + .yres = 600, + .hsync_len = 63, + .vsync_len = 2, + .left_margin = 26, + .upper_margin = 21, + .right_margin = 26, + .lower_margin = 11, + .sync = (FB_SYNC_HOR_HIGH_ACT | + FB_SYNC_VERT_HIGH_ACT), + .cmap_greyscale = 0, +}; + +static struct pxafb_mach_info generic_crt_800x600 = { + .modes = &generic_crt_800x600_mode, + .num_modes = 1, + .lccr0 = (LCCR0_PAS), + .lccr3 = (LCCR3_PixClkDiv(0x02) | + LCCR3_Acb(0xff)), + .cmap_inverse = 0, + .cmap_static = 0, +}; + +static struct pxafb_mode_info generic_tft_320x240_mode = { + .pixclock = 134615, + .bpp = 16, + .xres = 320, + .yres = 240, + .hsync_len = 63, + .vsync_len = 7, + .left_margin = 75, + .upper_margin = 0, + .right_margin = 15, + .lower_margin = 15, + .sync = 0, + .cmap_greyscale = 0, +}; + +static struct pxafb_mach_info generic_tft_320x240 = { + .modes = &generic_tft_320x240_mode, + .num_modes = 1, + .lccr0 = (LCCR0_PAS), + .lccr3 = (LCCR3_PixClkDiv(0x06) | + LCCR3_Acb(0xff) | + LCCR3_PCP), + .cmap_inverse = 0, + .cmap_static = 0, +}; + +static struct pxafb_mode_info generic_stn_640x480_mode = { + .pixclock = 57692, + .bpp = 8, + .xres = 640, + .yres = 480, + .hsync_len = 4, + .vsync_len = 2, + .left_margin = 10, + .upper_margin = 5, + .right_margin = 10, + .lower_margin = 5, + .sync = (FB_SYNC_HOR_HIGH_ACT | + FB_SYNC_VERT_HIGH_ACT), + .cmap_greyscale = 0, +}; + +static struct pxafb_mach_info generic_stn_640x480 = { + .modes = &generic_stn_640x480_mode, + .num_modes = 1, + .lccr0 = 0, + .lccr3 = (LCCR3_PixClkDiv(0x02) | + LCCR3_Acb(0xff)), + .cmap_inverse = 0, + .cmap_static = 0, +}; + +static struct pxafb_mach_info *cmx270_display = &generic_crt_640x480; + +static int __init cmx270_set_display(char *str) +{ + int disp_type = simple_strtol(str, NULL, 0); + switch (disp_type) { + case MTYPE_STN320x240: + cmx270_display = &generic_stn_320x240; + break; + case MTYPE_TFT640x480: + cmx270_display = &generic_tft_640x480; + break; + case MTYPE_CRT640x480: + cmx270_display = &generic_crt_640x480; + break; + case MTYPE_CRT800x600: + cmx270_display = &generic_crt_800x600; + break; + case MTYPE_TFT320x240: + cmx270_display = &generic_tft_320x240; + break; + case MTYPE_STN640x480: + cmx270_display = &generic_stn_640x480; + break; + default: /* fallback to CRT 640x480 */ + cmx270_display = &generic_crt_640x480; + break; + } + return 1; +} + +/* + This should be done really early to get proper configuration for + frame buffer. + Indeed, pxafb parameters can be used istead, but CM-X270 bootloader + has limitied line length for kernel command line, and also it will + break compatibitlty with proprietary releases already in field. +*/ +__setup("monitor=", cmx270_set_display); + +/* PXA27x OHCI controller setup */ +static int cmx270_ohci_init(struct device *dev) +{ + /* Set the Power Control Polarity Low */ + UHCHR = (UHCHR | UHCHR_PCPL) & + ~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSE); + + return 0; +} + +static struct pxaohci_platform_data cmx270_ohci_platform_data = { + .port_mode = PMM_PERPORT_MODE, + .init = cmx270_ohci_init, +}; + + +static int cmx270_mci_init(struct device *dev, + irq_handler_t cmx270_detect_int, + void *data) +{ + int err; + + /* + * setup GPIO for PXA27x MMC controller + */ + pxa_gpio_mode(GPIO32_MMCCLK_MD); + pxa_gpio_mode(GPIO112_MMCCMD_MD); + pxa_gpio_mode(GPIO92_MMCDAT0_MD); + pxa_gpio_mode(GPIO109_MMCDAT1_MD); + pxa_gpio_mode(GPIO110_MMCDAT2_MD); + pxa_gpio_mode(GPIO111_MMCDAT3_MD); + + /* SB-X270 uses GPIO105 as SD power enable */ + pxa_gpio_mode(105 | GPIO_OUT); + + /* card detect IRQ on GPIO 83 */ + pxa_gpio_mode(IRQ_TO_GPIO(CMX270_MMC_IRQ)); + set_irq_type(CMX270_MMC_IRQ, IRQT_FALLING); + + err = request_irq(CMX270_MMC_IRQ, cmx270_detect_int, + IRQF_DISABLED | IRQF_TRIGGER_FALLING, + "MMC card detect", data); + if (err) { + printk(KERN_ERR "cmx270_mci_init: MMC/SD: can't" + " request MMC card detect IRQ\n"); + return -1; + } + + return 0; +} + +static void cmx270_mci_setpower(struct device *dev, unsigned int vdd) +{ + struct pxamci_platform_data *p_d = dev->platform_data; + + if ((1 << vdd) & p_d->ocr_mask) { + printk(KERN_DEBUG "%s: on\n", __FUNCTION__); + GPCR(105) = GPIO_bit(105); + } else { + GPSR(105) = GPIO_bit(105); + printk(KERN_DEBUG "%s: off\n", __FUNCTION__); + } +} + +static void cmx270_mci_exit(struct device *dev, void *data) +{ + free_irq(CMX270_MMC_IRQ, data); +} + +static struct pxamci_platform_data cmx270_mci_platform_data = { + .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, + .init = cmx270_mci_init, + .setpower = cmx270_mci_setpower, + .exit = cmx270_mci_exit, +}; + +#ifdef CONFIG_PM +static unsigned long sleep_save_msc[10]; + +static int cmx270_suspend(struct sys_device *dev, pm_message_t state) +{ + cmx270_pci_suspend(); + + /* save MSC registers */ + sleep_save_msc[0] = MSC0; + sleep_save_msc[1] = MSC1; + sleep_save_msc[2] = MSC2; + + /* setup power saving mode registers */ + PCFR = 0x0; + PSLR = 0xff400000; + PMCR = 0x00000005; + PWER = 0x80000000; + PFER = 0x00000000; + PRER = 0x00000000; + PGSR0 = 0xC0018800; + PGSR1 = 0x004F0002; + PGSR2 = 0x6021C000; + PGSR3 = 0x00020000; + + return 0; +} + +static int cmx270_resume(struct sys_device *dev) +{ + cmx270_pci_resume(); + + /* restore MSC registers */ + MSC0 = sleep_save_msc[0]; + MSC1 = sleep_save_msc[1]; + MSC2 = sleep_save_msc[2]; + + return 0; +} + +static struct sysdev_class cmx270_pm_sysclass = { + set_kset_name("pm"), + .resume = cmx270_resume, + .suspend = cmx270_suspend, +}; + +static struct sys_device cmx270_pm_device = { + .cls = &cmx270_pm_sysclass, +}; + +static int __init cmx270_pm_init(void) +{ + int error; + error = sysdev_class_register(&cmx270_pm_sysclass); + if (error == 0) + error = sysdev_register(&cmx270_pm_device); + return error; +} +#else +static int __init cmx270_pm_init(void) { return 0; } +#endif + +static void __init cmx270_init(void) +{ + cmx270_pm_init(); + + set_pxa_fb_info(cmx270_display); + + /* register CM-X270 platform devices */ + platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); + + /* set MCI and OHCI platform parameters */ + pxa_set_mci_info(&cmx270_mci_platform_data); + pxa_set_ohci_info(&cmx270_ohci_platform_data); + + /* This enables the STUART */ + pxa_gpio_mode(GPIO46_STRXD_MD); + pxa_gpio_mode(GPIO47_STTXD_MD); + + /* This enables the BTUART */ + pxa_gpio_mode(GPIO42_BTRXD_MD); + pxa_gpio_mode(GPIO43_BTTXD_MD); + pxa_gpio_mode(GPIO44_BTCTS_MD); + pxa_gpio_mode(GPIO45_BTRTS_MD); +} + +static void __init cmx270_init_irq(void) +{ + pxa27x_init_irq(); + + + cmx270_pci_init_irq(); + + /* Setup interrupt for dm9000 */ + pxa_gpio_mode(IRQ_TO_GPIO(CMX270_ETHIRQ)); + set_irq_type(CMX270_ETHIRQ, IRQT_RISING); + + /* Setup interrupt for 2700G */ + pxa_gpio_mode(IRQ_TO_GPIO(CMX270_GFXIRQ)); + set_irq_type(CMX270_GFXIRQ, IRQT_FALLING); +} + +static void __init cmx270_map_io(void) +{ + pxa_map_io(); + iotable_init(cmx270_io_desc, ARRAY_SIZE(cmx270_io_desc)); +} + + +MACHINE_START(ARMCORE, "Compulab CM-x270") + .boot_params = 0xa0000100, + .phys_io = 0x40000000, + .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, + .map_io = cmx270_map_io, + .init_irq = cmx270_init_irq, + .timer = &pxa_timer, + .init_machine = cmx270_init, +MACHINE_END diff --git a/arch/arm/mach-pxa/devices.h b/arch/arm/mach-pxa/devices.h index 636fdb1..94c8d5c 100644 --- a/arch/arm/mach-pxa/devices.h +++ b/arch/arm/mach-pxa/devices.h @@ -9,3 +9,6 @@ extern struct platform_device pxa_device_i2c; extern struct platform_device pxa_device_i2s; extern struct platform_device pxa_device_ficp; extern struct platform_device pxa_device_rtc; + +extern struct platform_device pxa27x_device_i2c_power; +extern struct platform_device pxa27x_device_ohci; diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c index 5510f6f..1c34946 100644 --- a/arch/arm/mach-pxa/generic.c +++ b/arch/arm/mach-pxa/generic.c @@ -25,10 +25,6 @@ #include <linux/pm.h> #include <linux/string.h> -#include <linux/sched.h> -#include <asm/cnt32_to_63.h> -#include <asm/div64.h> - #include <asm/hardware.h> #include <asm/irq.h> #include <asm/system.h> @@ -47,66 +43,39 @@ #include "generic.h" /* - * This is the PXA2xx sched_clock implementation. This has a resolution - * of at least 308ns and a maximum value that depends on the value of - * CLOCK_TICK_RATE. - * - * The return value is guaranteed to be monotonic in that range as - * long as there is always less than 582 seconds between successive - * calls to this function. + * Get the clock frequency as reflected by CCCR and the turbo flag. + * We assume these values have been applied via a fcs. + * If info is not 0 we also display the current settings. */ -unsigned long long sched_clock(void) +unsigned int get_clk_frequency_khz(int info) { - unsigned long long v = cnt32_to_63(OSCR); - /* Note: top bit ov v needs cleared unless multiplier is even. */ - -#if CLOCK_TICK_RATE == 3686400 - /* 1E9 / 3686400 => 78125 / 288, max value = 32025597s (370 days). */ - /* The <<1 is used to get rid of tick.hi top bit */ - v *= 78125<<1; - do_div(v, 288<<1); -#elif CLOCK_TICK_RATE == 3250000 - /* 1E9 / 3250000 => 4000 / 13, max value = 709490156s (8211 days) */ - v *= 4000; - do_div(v, 13); -#elif CLOCK_TICK_RATE == 3249600 - /* 1E9 / 3249600 => 625000 / 2031, max value = 4541295s (52 days) */ - v *= 625000; - do_div(v, 2031); -#else -#warning "consider fixing sched_clock for your value of CLOCK_TICK_RATE" - /* - * 96-bit math to perform tick * NSEC_PER_SEC / CLOCK_TICK_RATE for - * any value of CLOCK_TICK_RATE. Max value is in the 80 thousand - * years range and truncation to unsigned long long limits it to - * sched_clock's max range of ~584 years. This is nice but with - * higher computation cost. - */ - { - union { - unsigned long long val; - struct { unsigned long lo, hi; }; - } x; - unsigned long long y; - - x.val = v; - x.hi &= 0x7fffffff; - y = (unsigned long long)x.lo * NSEC_PER_SEC; - x.lo = y; - y = (y >> 32) + (unsigned long long)x.hi * NSEC_PER_SEC; - x.hi = do_div(y, CLOCK_TICK_RATE); - do_div(x.val, CLOCK_TICK_RATE); - x.hi += y; - v = x.val; - } -#endif + if (cpu_is_pxa21x() || cpu_is_pxa25x()) + return pxa25x_get_clk_frequency_khz(info); + else if (cpu_is_pxa27x()) + return pxa27x_get_clk_frequency_khz(info); + else + return pxa3xx_get_clk_frequency_khz(info); +} +EXPORT_SYMBOL(get_clk_frequency_khz); - return v; +/* + * Return the current memory clock frequency in units of 10kHz + */ +unsigned int get_memclk_frequency_10khz(void) +{ + if (cpu_is_pxa21x() || cpu_is_pxa25x()) + return pxa25x_get_memclk_frequency_10khz(); + else if (cpu_is_pxa27x()) + return pxa27x_get_memclk_frequency_10khz(); + else + return pxa3xx_get_memclk_frequency_10khz(); } +EXPORT_SYMBOL(get_memclk_frequency_10khz); /* * Handy function to set GPIO alternate functions */ +int pxa_last_gpio; int pxa_gpio_mode(int gpio_mode) { @@ -115,7 +84,7 @@ int pxa_gpio_mode(int gpio_mode) int fn = (gpio_mode & GPIO_MD_MASK_FN) >> 8; int gafr; - if (gpio > PXA_LAST_GPIO) + if (gpio > pxa_last_gpio) return -EINVAL; local_irq_save(flags); @@ -136,6 +105,44 @@ int pxa_gpio_mode(int gpio_mode) EXPORT_SYMBOL(pxa_gpio_mode); +int gpio_direction_input(unsigned gpio) +{ + unsigned long flags; + u32 mask; + + if (gpio > pxa_last_gpio) + return -EINVAL; + + mask = GPIO_bit(gpio); + local_irq_save(flags); + GPDR(gpio) &= ~mask; + local_irq_restore(flags); + + return 0; +} +EXPORT_SYMBOL(gpio_direction_input); + +int gpio_direction_output(unsigned gpio, int value) +{ + unsigned long flags; + u32 mask; + + if (gpio > pxa_last_gpio) + return -EINVAL; + + mask = GPIO_bit(gpio); + local_irq_save(flags); + if (value) + GPSR(gpio) = mask; + else + GPCR(gpio) = mask; + GPDR(gpio) |= mask; + local_irq_restore(flags); + + return 0; +} +EXPORT_SYMBOL(gpio_direction_output); + /* * Return GPIO level */ @@ -159,7 +166,7 @@ EXPORT_SYMBOL(pxa_gpio_set_value); /* * Routine to safely enable or disable a clock in the CKEN */ -void pxa_set_cken(int clock, int enable) +void __pxa_set_cken(int clock, int enable) { unsigned long flags; local_irq_save(flags); @@ -172,7 +179,7 @@ void pxa_set_cken(int clock, int enable) local_irq_restore(flags); } -EXPORT_SYMBOL(pxa_set_cken); +EXPORT_SYMBOL(__pxa_set_cken); /* * Intel PXA2xx internal register mapping. @@ -329,21 +336,80 @@ void __init set_pxa_fb_parent(struct device *parent_dev) pxa_device_fb.dev.parent = parent_dev; } +static struct resource pxa_resource_ffuart[] = { + { + .start = __PREG(FFUART), + .end = __PREG(FFUART) + 35, + .flags = IORESOURCE_MEM, + }, { + .start = IRQ_FFUART, + .end = IRQ_FFUART, + .flags = IORESOURCE_IRQ, + } +}; + struct platform_device pxa_device_ffuart= { .name = "pxa2xx-uart", .id = 0, + .resource = pxa_resource_ffuart, + .num_resources = ARRAY_SIZE(pxa_resource_ffuart), }; + +static struct resource pxa_resource_btuart[] = { + { + .start = __PREG(BTUART), + .end = __PREG(BTUART) + 35, + .flags = IORESOURCE_MEM, + }, { + .start = IRQ_BTUART, + .end = IRQ_BTUART, + .flags = IORESOURCE_IRQ, + } +}; + struct platform_device pxa_device_btuart = { .name = "pxa2xx-uart", .id = 1, + .resource = pxa_resource_btuart, + .num_resources = ARRAY_SIZE(pxa_resource_btuart), }; + +static struct resource pxa_resource_stuart[] = { + { + .start = __PREG(STUART), + .end = __PREG(STUART) + 35, + .flags = IORESOURCE_MEM, + }, { + .start = IRQ_STUART, + .end = IRQ_STUART, + .flags = IORESOURCE_IRQ, + } +}; + struct platform_device pxa_device_stuart = { .name = "pxa2xx-uart", .id = 2, + .resource = pxa_resource_stuart, + .num_resources = ARRAY_SIZE(pxa_resource_stuart), }; + +static struct resource pxa_resource_hwuart[] = { + { + .start = __PREG(HWUART), + .end = __PREG(HWUART) + 47, + .flags = IORESOURCE_MEM, + }, { + .start = IRQ_HWUART, + .end = IRQ_HWUART, + .flags = IORESOURCE_IRQ, + } +}; + struct platform_device pxa_device_hwuart = { .name = "pxa2xx-uart", .id = 3, + .resource = pxa_resource_hwuart, + .num_resources = ARRAY_SIZE(pxa_resource_hwuart), }; static struct resource pxai2c_resources[] = { diff --git a/arch/arm/mach-pxa/generic.h b/arch/arm/mach-pxa/generic.h index 91ab2ad8..b30f240 100644 --- a/arch/arm/mach-pxa/generic.h +++ b/arch/arm/mach-pxa/generic.h @@ -15,14 +15,40 @@ extern struct sys_timer pxa_timer; extern void __init pxa_init_irq_low(void); extern void __init pxa_init_irq_high(void); extern void __init pxa_init_irq_gpio(int gpio_nr); +extern void __init pxa_init_irq_set_wake(int (*set_wake)(unsigned int, unsigned int)); extern void __init pxa25x_init_irq(void); extern void __init pxa27x_init_irq(void); +extern void __init pxa3xx_init_irq(void); extern void __init pxa_map_io(void); extern unsigned int get_clk_frequency_khz(int info); +extern int pxa_last_gpio; #define SET_BANK(__nr,__start,__size) \ mi->bank[__nr].start = (__start), \ mi->bank[__nr].size = (__size), \ mi->bank[__nr].node = (((unsigned)(__start) - PHYS_OFFSET) >> 27) +#ifdef CONFIG_PXA25x +extern unsigned pxa25x_get_clk_frequency_khz(int); +extern unsigned pxa25x_get_memclk_frequency_10khz(void); +#else +#define pxa25x_get_clk_frequency_khz(x) (0) +#define pxa25x_get_memclk_frequency_10khz() (0) +#endif + +#ifdef CONFIG_PXA27x +extern unsigned pxa27x_get_clk_frequency_khz(int); +extern unsigned pxa27x_get_memclk_frequency_10khz(void); +#else +#define pxa27x_get_clk_frequency_khz(x) (0) +#define pxa27x_get_memclk_frequency_10khz() (0) +#endif + +#ifdef CONFIG_PXA3xx +extern unsigned pxa3xx_get_clk_frequency_khz(int); +extern unsigned pxa3xx_get_memclk_frequency_10khz(void); +#else +#define pxa3xx_get_clk_frequency_khz(x) (0) +#define pxa3xx_get_memclk_frequency_10khz() (0) +#endif diff --git a/arch/arm/mach-pxa/irq.c b/arch/arm/mach-pxa/irq.c index ae2ae08..07acb45 100644 --- a/arch/arm/mach-pxa/irq.c +++ b/arch/arm/mach-pxa/irq.c @@ -38,33 +38,11 @@ static void pxa_unmask_low_irq(unsigned int irq) ICMR |= (1 << irq); } -static int pxa_set_wake(unsigned int irq, unsigned int on) -{ - u32 mask; - - switch (irq) { - case IRQ_RTCAlrm: - mask = PWER_RTC; - break; -#ifdef CONFIG_PXA27x - /* REVISIT can handle USBH1, USBH2, USB, MSL, USIM, ... */ -#endif - default: - return -EINVAL; - } - if (on) - PWER |= mask; - else - PWER &= ~mask; - return 0; -} - static struct irq_chip pxa_internal_chip_low = { .name = "SC", .ack = pxa_mask_low_irq, .mask = pxa_mask_low_irq, .unmask = pxa_unmask_low_irq, - .set_wake = pxa_set_wake, }; void __init pxa_init_irq_low(void) @@ -87,7 +65,7 @@ void __init pxa_init_irq_low(void) } } -#ifdef CONFIG_PXA27x +#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx) /* * This is for the second set of internal IRQs as found on the PXA27x. @@ -125,26 +103,6 @@ void __init pxa_init_irq_high(void) } #endif -/* Note that if an input/irq line ever gets changed to an output during - * suspend, the relevant PWER, PRER, and PFER bits should be cleared. - */ -#ifdef CONFIG_PXA27x - -/* PXA27x: Various gpios can issue wakeup events. This logic only - * handles the simple cases, not the WEMUX2 and WEMUX3 options - */ -#define PXA27x_GPIO_NOWAKE_MASK \ - ((1 << 8) | (1 << 7) | (1 << 6) | (1 << 5) | (1 << 2)) -#define WAKEMASK(gpio) \ - (((gpio) <= 15) \ - ? ((1 << (gpio)) & ~PXA27x_GPIO_NOWAKE_MASK) \ - : ((gpio == 35) ? (1 << 24) : 0)) -#else - -/* pxa 210, 250, 255, 26x: gpios 0..15 can issue wakeups */ -#define WAKEMASK(gpio) (((gpio) <= 15) ? (1 << (gpio)) : 0) -#endif - /* * PXA GPIO edge detection for IRQs: * IRQs are generated on Falling-Edge, Rising-Edge, or both. @@ -158,11 +116,9 @@ static long GPIO_IRQ_mask[4]; static int pxa_gpio_irq_type(unsigned int irq, unsigned int type) { int gpio, idx; - u32 mask; gpio = IRQ_TO_GPIO(irq); idx = gpio >> 5; - mask = WAKEMASK(gpio); if (type == IRQT_PROBE) { /* Don't mess with enabled GPIOs using preconfigured edges or @@ -182,19 +138,15 @@ static int pxa_gpio_irq_type(unsigned int irq, unsigned int type) if (type & __IRQT_RISEDGE) { /* printk("rising "); */ __set_bit (gpio, GPIO_IRQ_rising_edge); - PRER |= mask; } else { __clear_bit (gpio, GPIO_IRQ_rising_edge); - PRER &= ~mask; } if (type & __IRQT_FALEDGE) { /* printk("falling "); */ __set_bit (gpio, GPIO_IRQ_falling_edge); - PFER |= mask; } else { __clear_bit (gpio, GPIO_IRQ_falling_edge); - PFER &= ~mask; } /* printk("edges\n"); */ @@ -213,29 +165,12 @@ static void pxa_ack_low_gpio(unsigned int irq) GEDR0 = (1 << (irq - IRQ_GPIO0)); } -static int pxa_set_gpio_wake(unsigned int irq, unsigned int on) -{ - int gpio = IRQ_TO_GPIO(irq); - u32 mask = WAKEMASK(gpio); - - if (!mask) - return -EINVAL; - - if (on) - PWER |= mask; - else - PWER &= ~mask; - return 0; -} - - static struct irq_chip pxa_low_gpio_chip = { .name = "GPIO-l", .ack = pxa_ack_low_gpio, .mask = pxa_mask_low_irq, .unmask = pxa_unmask_low_irq, .set_type = pxa_gpio_irq_type, - .set_wake = pxa_set_gpio_wake, }; /* @@ -342,13 +277,14 @@ static struct irq_chip pxa_muxed_gpio_chip = { .mask = pxa_mask_muxed_gpio, .unmask = pxa_unmask_muxed_gpio, .set_type = pxa_gpio_irq_type, - .set_wake = pxa_set_gpio_wake, }; void __init pxa_init_irq_gpio(int gpio_nr) { int irq, i; + pxa_last_gpio = gpio_nr - 1; + /* clear all GPIO edge detects */ for (i = 0; i < gpio_nr; i += 32) { GFER(i) = 0; @@ -375,3 +311,13 @@ void __init pxa_init_irq_gpio(int gpio_nr) set_irq_chip(IRQ_GPIO_2_x, &pxa_internal_chip_low); set_irq_chained_handler(IRQ_GPIO_2_x, pxa_gpio_demux_handler); } + +void __init pxa_init_irq_set_wake(int (*set_wake)(unsigned int, unsigned int)) +{ + pxa_internal_chip_low.set_wake = set_wake; +#ifdef CONFIG_PXA27x + pxa_internal_chip_high.set_wake = set_wake; +#endif + pxa_low_gpio_chip.set_wake = set_wake; + pxa_muxed_gpio_chip.set_wake = set_wake; +} diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c index e70048f..011a1a7 100644 --- a/arch/arm/mach-pxa/lubbock.c +++ b/arch/arm/mach-pxa/lubbock.c @@ -512,6 +512,25 @@ static void __init lubbock_map_io(void) pxa_gpio_mode(GPIO44_BTCTS_MD); pxa_gpio_mode(GPIO45_BTRTS_MD); + GPSR(GPIO48_nPOE) = + GPIO_bit(GPIO48_nPOE) | + GPIO_bit(GPIO49_nPWE) | + GPIO_bit(GPIO50_nPIOR) | + GPIO_bit(GPIO51_nPIOW) | + GPIO_bit(GPIO52_nPCE_1) | + GPIO_bit(GPIO53_nPCE_2); + + pxa_gpio_mode(GPIO48_nPOE_MD); + pxa_gpio_mode(GPIO49_nPWE_MD); + pxa_gpio_mode(GPIO50_nPIOR_MD); + pxa_gpio_mode(GPIO51_nPIOW_MD); + pxa_gpio_mode(GPIO52_nPCE_1_MD); + pxa_gpio_mode(GPIO53_nPCE_2_MD); + pxa_gpio_mode(GPIO54_pSKTSEL_MD); + pxa_gpio_mode(GPIO55_nPREG_MD); + pxa_gpio_mode(GPIO56_nPWAIT_MD); + pxa_gpio_mode(GPIO57_nIOIS16_MD); + /* This is for the SMC chip select */ pxa_gpio_mode(GPIO79_nCS_3_MD); diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c index b02c79c..a4bc348 100644 --- a/arch/arm/mach-pxa/mainstone.c +++ b/arch/arm/mach-pxa/mainstone.c @@ -444,6 +444,25 @@ static void __init mainstone_init(void) */ pxa_gpio_mode(GPIO45_SYSCLK_AC97_MD); + GPSR(GPIO48_nPOE) = + GPIO_bit(GPIO48_nPOE) | + GPIO_bit(GPIO49_nPWE) | + GPIO_bit(GPIO50_nPIOR) | + GPIO_bit(GPIO51_nPIOW) | + GPIO_bit(GPIO85_nPCE_1) | + GPIO_bit(GPIO54_nPCE_2); + + pxa_gpio_mode(GPIO48_nPOE_MD); + pxa_gpio_mode(GPIO49_nPWE_MD); + pxa_gpio_mode(GPIO50_nPIOR_MD); + pxa_gpio_mode(GPIO51_nPIOW_MD); + pxa_gpio_mode(GPIO85_nPCE_1_MD); + pxa_gpio_mode(GPIO54_nPCE_2_MD); + pxa_gpio_mode(GPIO79_pSKTSEL_MD); + pxa_gpio_mode(GPIO55_nPREG_MD); + pxa_gpio_mode(GPIO56_nPWAIT_MD); + pxa_gpio_mode(GPIO57_nIOIS16_MD); + platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); /* reading Mainstone's "Virtual Configuration Register" diff --git a/arch/arm/mach-pxa/mfp.c b/arch/arm/mach-pxa/mfp.c new file mode 100644 index 0000000..5cd3cad --- /dev/null +++ b/arch/arm/mach-pxa/mfp.c @@ -0,0 +1,235 @@ +/* + * linux/arch/arm/mach-pxa/mfp.c + * + * PXA3xx Multi-Function Pin Support + * + * Copyright (C) 2007 Marvell Internation Ltd. + * + * 2007-08-21: eric miao <eric.y.miao@gmail.com> + * initial version + * + * 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/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/io.h> + +#include <asm/hardware.h> +#include <asm/arch/mfp.h> + +/* mfp_spin_lock is used to ensure that MFP register configuration + * (most likely a read-modify-write operation) is atomic, and that + * mfp_table[] is consistent + */ +static DEFINE_SPINLOCK(mfp_spin_lock); + +static void __iomem *mfpr_mmio_base = (void __iomem *)&__REG(MFPR_BASE); +static struct pxa3xx_mfp_pin mfp_table[MFP_PIN_MAX]; + +#define mfpr_readl(off) \ + __raw_readl(mfpr_mmio_base + (off)) + +#define mfpr_writel(off, val) \ + __raw_writel(val, mfpr_mmio_base + (off)) + +/* + * perform a read-back of any MFPR register to make sure the + * previous writings are finished + */ +#define mfpr_sync() (void)__raw_readl(mfpr_mmio_base + 0) + +static inline void __mfp_config(int pin, unsigned long val) +{ + unsigned long off = mfp_table[pin].mfpr_off; + + mfp_table[pin].mfpr_val = val; + mfpr_writel(off, val); +} + +void pxa3xx_mfp_config(mfp_cfg_t *mfp_cfgs, int num) +{ + int i, pin; + unsigned long val, flags; + mfp_cfg_t *mfp_cfg = mfp_cfgs; + + spin_lock_irqsave(&mfp_spin_lock, flags); + + for (i = 0; i < num; i++, mfp_cfg++) { + pin = MFP_CFG_PIN(*mfp_cfg); + val = MFP_CFG_VAL(*mfp_cfg); + + BUG_ON(pin >= MFP_PIN_MAX); + + __mfp_config(pin, val); + } + + mfpr_sync(); + spin_unlock_irqrestore(&mfp_spin_lock, flags); +} + +unsigned long pxa3xx_mfp_read(int mfp) +{ + unsigned long val, flags; + + BUG_ON(mfp >= MFP_PIN_MAX); + + spin_lock_irqsave(&mfp_spin_lock, flags); + val = mfpr_readl(mfp_table[mfp].mfpr_off); + spin_unlock_irqrestore(&mfp_spin_lock, flags); + + return val; +} + +void pxa3xx_mfp_write(int mfp, unsigned long val) +{ + unsigned long flags; + + BUG_ON(mfp >= MFP_PIN_MAX); + + spin_lock_irqsave(&mfp_spin_lock, flags); + mfpr_writel(mfp_table[mfp].mfpr_off, val); + mfpr_sync(); + spin_unlock_irqrestore(&mfp_spin_lock, flags); +} + +void pxa3xx_mfp_set_afds(int mfp, int af, int ds) +{ + uint32_t mfpr_off, mfpr_val; + unsigned long flags; + + BUG_ON(mfp >= MFP_PIN_MAX); + + spin_lock_irqsave(&mfp_spin_lock, flags); + mfpr_off = mfp_table[mfp].mfpr_off; + + mfpr_val = mfpr_readl(mfpr_off); + mfpr_val &= ~(MFPR_AF_MASK | MFPR_DRV_MASK); + mfpr_val |= (((af & 0x7) << MFPR_ALT_OFFSET) | + ((ds & 0x7) << MFPR_DRV_OFFSET)); + + mfpr_writel(mfpr_off, mfpr_val); + mfpr_sync(); + + spin_unlock_irqrestore(&mfp_spin_lock, flags); +} + +void pxa3xx_mfp_set_rdh(int mfp, int rdh) +{ + uint32_t mfpr_off, mfpr_val; + unsigned long flags; + + BUG_ON(mfp >= MFP_PIN_MAX); + + spin_lock_irqsave(&mfp_spin_lock, flags); + + mfpr_off = mfp_table[mfp].mfpr_off; + + mfpr_val = mfpr_readl(mfpr_off); + mfpr_val &= ~MFPR_RDH_MASK; + + if (likely(rdh)) + mfpr_val |= (1u << MFPR_SS_OFFSET); + + mfpr_writel(mfpr_off, mfpr_val); + mfpr_sync(); + + spin_unlock_irqrestore(&mfp_spin_lock, flags); +} + +void pxa3xx_mfp_set_lpm(int mfp, int lpm) +{ + uint32_t mfpr_off, mfpr_val; + unsigned long flags; + + BUG_ON(mfp >= MFP_PIN_MAX); + + spin_lock_irqsave(&mfp_spin_lock, flags); + + mfpr_off = mfp_table[mfp].mfpr_off; + mfpr_val = mfpr_readl(mfpr_off); + mfpr_val &= ~MFPR_LPM_MASK; + + if (lpm & 0x1) mfpr_val |= 1u << MFPR_SON_OFFSET; + if (lpm & 0x2) mfpr_val |= 1u << MFPR_SD_OFFSET; + if (lpm & 0x4) mfpr_val |= 1u << MFPR_PU_OFFSET; + if (lpm & 0x8) mfpr_val |= 1u << MFPR_PD_OFFSET; + if (lpm &0x10) mfpr_val |= 1u << MFPR_PS_OFFSET; + + mfpr_writel(mfpr_off, mfpr_val); + mfpr_sync(); + + spin_unlock_irqrestore(&mfp_spin_lock, flags); +} + +void pxa3xx_mfp_set_pull(int mfp, int pull) +{ + uint32_t mfpr_off, mfpr_val; + unsigned long flags; + + BUG_ON(mfp >= MFP_PIN_MAX); + + spin_lock_irqsave(&mfp_spin_lock, flags); + + mfpr_off = mfp_table[mfp].mfpr_off; + mfpr_val = mfpr_readl(mfpr_off); + mfpr_val &= ~MFPR_PULL_MASK; + mfpr_val |= ((pull & 0x7u) << MFPR_PD_OFFSET); + + mfpr_writel(mfpr_off, mfpr_val); + mfpr_sync(); + + spin_unlock_irqrestore(&mfp_spin_lock, flags); +} + +void pxa3xx_mfp_set_edge(int mfp, int edge) +{ + uint32_t mfpr_off, mfpr_val; + unsigned long flags; + + BUG_ON(mfp >= MFP_PIN_MAX); + + spin_lock_irqsave(&mfp_spin_lock, flags); + + mfpr_off = mfp_table[mfp].mfpr_off; + mfpr_val = mfpr_readl(mfpr_off); + + mfpr_val &= ~MFPR_EDGE_MASK; + mfpr_val |= (edge & 0x3u) << MFPR_ERE_OFFSET; + mfpr_val |= (!edge & 0x1) << MFPR_EC_OFFSET; + + mfpr_writel(mfpr_off, mfpr_val); + mfpr_sync(); + + spin_unlock_irqrestore(&mfp_spin_lock, flags); +} + +void __init pxa3xx_mfp_init_addr(struct pxa3xx_mfp_addr_map *map) +{ + struct pxa3xx_mfp_addr_map *p; + unsigned long offset, flags; + int i; + + spin_lock_irqsave(&mfp_spin_lock, flags); + + for (p = map; p->start != MFP_PIN_INVALID; p++) { + offset = p->offset; + i = p->start; + + do { + mfp_table[i].mfpr_off = offset; + mfp_table[i].mfpr_val = 0; + offset += 4; i++; + } while ((i <= p->end) && (p->end != -1)); + } + + spin_unlock_irqrestore(&mfp_spin_lock, flags); +} + +void __init pxa3xx_init_mfp(void) +{ + memset(mfp_table, 0, sizeof(mfp_table)); +} diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c index 6dfcca7..0d6a725 100644 --- a/arch/arm/mach-pxa/pxa25x.c +++ b/arch/arm/mach-pxa/pxa25x.c @@ -30,6 +30,7 @@ #include "generic.h" #include "devices.h" +#include "clock.h" /* * Various clock factors driven by the CCCR register. @@ -53,7 +54,7 @@ static unsigned char N2_clk_mult[8] = { 0, 0, 2, 3, 4, 0, 6, 0 }; * We assume these values have been applied via a fcs. * If info is not 0 we also display the current settings. */ -unsigned int get_clk_frequency_khz(int info) +unsigned int pxa25x_get_clk_frequency_khz(int info) { unsigned long cccr, turbo; unsigned int l, L, m, M, n2, N; @@ -86,27 +87,48 @@ unsigned int get_clk_frequency_khz(int info) return (turbo & 1) ? (N/1000) : (M/1000); } -EXPORT_SYMBOL(get_clk_frequency_khz); - /* * Return the current memory clock frequency in units of 10kHz */ -unsigned int get_memclk_frequency_10khz(void) +unsigned int pxa25x_get_memclk_frequency_10khz(void) { return L_clk_mult[(CCCR >> 0) & 0x1f] * BASE_CLK / 10000; } -EXPORT_SYMBOL(get_memclk_frequency_10khz); - -/* - * Return the current LCD clock frequency in units of 10kHz - */ -unsigned int get_lcdclk_frequency_10khz(void) +static unsigned long clk_pxa25x_lcd_getrate(struct clk *clk) { - return get_memclk_frequency_10khz(); + return pxa25x_get_memclk_frequency_10khz() * 10000; } -EXPORT_SYMBOL(get_lcdclk_frequency_10khz); +static const struct clkops clk_pxa25x_lcd_ops = { + .enable = clk_cken_enable, + .disable = clk_cken_disable, + .getrate = clk_pxa25x_lcd_getrate, +}; + +/* + * 3.6864MHz -> OST, GPIO, SSP, PWM, PLLs (95.842MHz, 147.456MHz) + * 95.842MHz -> MMC 19.169MHz, I2C 31.949MHz, FICP 47.923MHz, USB 47.923MHz + * 147.456MHz -> UART 14.7456MHz, AC97 12.288MHz, I2S 5.672MHz (allegedly) + */ +static struct clk pxa25x_clks[] = { + INIT_CK("LCDCLK", LCD, &clk_pxa25x_lcd_ops, &pxa_device_fb.dev), + INIT_CKEN("UARTCLK", FFUART, 14745600, 1, &pxa_device_ffuart.dev), + INIT_CKEN("UARTCLK", BTUART, 14745600, 1, &pxa_device_btuart.dev), + INIT_CKEN("UARTCLK", BTUART, 14745600, 1, &pxa_device_btuart.dev), + INIT_CKEN("UARTCLK", STUART, 14745600, 1, NULL), + INIT_CKEN("UDCCLK", USB, 47923000, 5, &pxa_device_udc.dev), + INIT_CKEN("MMCCLK", MMC, 19169000, 0, &pxa_device_mci.dev), + INIT_CKEN("I2CCLK", I2C, 31949000, 0, &pxa_device_i2c.dev), + /* + INIT_CKEN("PWMCLK", PWM0, 3686400, 0, NULL), + INIT_CKEN("PWMCLK", PWM0, 3686400, 0, NULL), + INIT_CKEN("SSPCLK", SSP, 3686400, 0, NULL), + INIT_CKEN("I2SCLK", I2S, 14745600, 0, NULL), + INIT_CKEN("NSSPCLK", NSSP, 3686400, 0, NULL), + */ + INIT_CKEN("FICPCLK", FICP, 47923000, 0, NULL), +}; #ifdef CONFIG_PM @@ -205,10 +227,52 @@ static void __init pxa25x_init_pm(void) } #endif +/* PXA25x: supports wakeup from GPIO0..GPIO15 and RTC alarm + */ + +static int pxa25x_set_wake(unsigned int irq, unsigned int on) +{ + int gpio = IRQ_TO_GPIO(irq); + uint32_t gpio_bit, mask = 0; + + if (gpio >= 0 && gpio <= 15) { + gpio_bit = GPIO_bit(gpio); + mask = gpio_bit; + if (on) { + if (GRER(gpio) | gpio_bit) + PRER |= gpio_bit; + else + PRER &= ~gpio_bit; + + if (GFER(gpio) | gpio_bit) + PFER |= gpio_bit; + else + PFER &= ~gpio_bit; + } + goto set_pwer; + } + + if (irq == IRQ_RTCAlrm) { + mask = PWER_RTC; + goto set_pwer; + } + + return -EINVAL; + +set_pwer: + if (on) + PWER |= mask; + else + PWER &=~mask; + + return 0; +} + void __init pxa25x_init_irq(void) { pxa_init_irq_low(); pxa_init_irq_gpio(85); + pxa_init_irq_set_wake(pxa25x_set_wake); } static struct platform_device *pxa25x_devices[] __initdata = { @@ -229,6 +293,8 @@ static int __init pxa25x_init(void) int ret = 0; if (cpu_is_pxa21x() || cpu_is_pxa25x()) { + clks_register(pxa25x_clks, ARRAY_SIZE(pxa25x_clks)); + if ((ret = pxa_init_dma(16))) return ret; #ifdef CONFIG_PM diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c index 203371a..2d7fc39 100644 --- a/arch/arm/mach-pxa/pxa27x.c +++ b/arch/arm/mach-pxa/pxa27x.c @@ -27,6 +27,7 @@ #include "generic.h" #include "devices.h" +#include "clock.h" /* Crystal clock: 13MHz */ #define BASE_CLK 13000000 @@ -36,7 +37,7 @@ * We assume these values have been applied via a fcs. * If info is not 0 we also display the current settings. */ -unsigned int get_clk_frequency_khz( int info) +unsigned int pxa27x_get_clk_frequency_khz(int info) { unsigned long ccsr, clkcfg; unsigned int l, L, m, M, n2, N, S; @@ -79,7 +80,7 @@ unsigned int get_clk_frequency_khz( int info) * Return the current mem clock frequency in units of 10kHz as * reflected by CCCR[A], B, and L */ -unsigned int get_memclk_frequency_10khz(void) +unsigned int pxa27x_get_memclk_frequency_10khz(void) { unsigned long ccsr, clkcfg; unsigned int l, L, m, M; @@ -104,7 +105,7 @@ unsigned int get_memclk_frequency_10khz(void) /* * Return the current LCD clock frequency in units of 10kHz as */ -unsigned int get_lcdclk_frequency_10khz(void) +static unsigned int pxa27x_get_lcdclk_frequency_10khz(void) { unsigned long ccsr; unsigned int l, L, k, K; @@ -120,9 +121,47 @@ unsigned int get_lcdclk_frequency_10khz(void) return (K / 10000); } -EXPORT_SYMBOL(get_clk_frequency_khz); -EXPORT_SYMBOL(get_memclk_frequency_10khz); -EXPORT_SYMBOL(get_lcdclk_frequency_10khz); +static unsigned long clk_pxa27x_lcd_getrate(struct clk *clk) +{ + return pxa27x_get_lcdclk_frequency_10khz() * 10000; +} + +static const struct clkops clk_pxa27x_lcd_ops = { + .enable = clk_cken_enable, + .disable = clk_cken_disable, + .getrate = clk_pxa27x_lcd_getrate, +}; + +static struct clk pxa27x_clks[] = { + INIT_CK("LCDCLK", LCD, &clk_pxa27x_lcd_ops, &pxa_device_fb.dev), + INIT_CK("CAMCLK", CAMERA, &clk_pxa27x_lcd_ops, NULL), + + INIT_CKEN("UARTCLK", FFUART, 14857000, 1, &pxa_device_ffuart.dev), + INIT_CKEN("UARTCLK", BTUART, 14857000, 1, &pxa_device_btuart.dev), + INIT_CKEN("UARTCLK", STUART, 14857000, 1, NULL), + + INIT_CKEN("I2SCLK", I2S, 14682000, 0, &pxa_device_i2s.dev), + INIT_CKEN("I2CCLK", I2C, 32842000, 0, &pxa_device_i2c.dev), + INIT_CKEN("UDCCLK", USB, 48000000, 5, &pxa_device_udc.dev), + INIT_CKEN("MMCCLK", MMC, 19500000, 0, &pxa_device_mci.dev), + INIT_CKEN("FICPCLK", FICP, 48000000, 0, &pxa_device_ficp.dev), + + INIT_CKEN("USBCLK", USB, 48000000, 0, &pxa27x_device_ohci.dev), + INIT_CKEN("I2CCLK", PWRI2C, 13000000, 0, &pxa27x_device_i2c_power.dev), + INIT_CKEN("KBDCLK", KEYPAD, 32768, 0, NULL), + + /* + INIT_CKEN("PWMCLK", PWM0, 13000000, 0, NULL), + INIT_CKEN("SSPCLK", SSP1, 13000000, 0, NULL), + INIT_CKEN("SSPCLK", SSP2, 13000000, 0, NULL), + INIT_CKEN("SSPCLK", SSP3, 13000000, 0, NULL), + INIT_CKEN("MSLCLK", MSL, 48000000, 0, NULL), + INIT_CKEN("USIMCLK", USIM, 48000000, 0, NULL), + INIT_CKEN("MSTKCLK", MEMSTK, 19500000, 0, NULL), + INIT_CKEN("IMCLK", IM, 0, 0, NULL), + INIT_CKEN("MEMCLK", MEMC, 0, 0, NULL), + */ +}; #ifdef CONFIG_PM @@ -267,6 +306,69 @@ static void __init pxa27x_init_pm(void) } #endif +/* PXA27x: Various gpios can issue wakeup events. This logic only + * handles the simple cases, not the WEMUX2 and WEMUX3 options + */ +#define PXA27x_GPIO_NOWAKE_MASK \ + ((1 << 8) | (1 << 7) | (1 << 6) | (1 << 5) | (1 << 2)) +#define WAKEMASK(gpio) \ + (((gpio) <= 15) \ + ? ((1 << (gpio)) & ~PXA27x_GPIO_NOWAKE_MASK) \ + : ((gpio == 35) ? (1 << 24) : 0)) + +static int pxa27x_set_wake(unsigned int irq, unsigned int on) +{ + int gpio = IRQ_TO_GPIO(irq); + uint32_t mask; + + if ((gpio >= 0 && gpio <= 15) || (gpio == 35)) { + if (WAKEMASK(gpio) == 0) + return -EINVAL; + + mask = WAKEMASK(gpio); + + if (on) { + if (GRER(gpio) | GPIO_bit(gpio)) + PRER |= mask; + else + PRER &= ~mask; + + if (GFER(gpio) | GPIO_bit(gpio)) + PFER |= mask; + else + PFER &= ~mask; + } + goto set_pwer; + } + + switch (irq) { + case IRQ_RTCAlrm: + mask = PWER_RTC; + break; + case IRQ_USB: + mask = 1u << 26; + break; + default: + return -EINVAL; + } + +set_pwer: + if (on) + PWER |= mask; + else + PWER &=~mask; + + return 0; +} + +void __init pxa27x_init_irq(void) +{ + pxa_init_irq_low(); + pxa_init_irq_high(); + pxa_init_irq_gpio(128); + pxa_init_irq_set_wake(pxa27x_set_wake); +} + /* * device registration specific to PXA27x. */ @@ -286,7 +388,7 @@ static struct resource pxa27x_ohci_resources[] = { }, }; -static struct platform_device pxa27x_device_ohci = { +struct platform_device pxa27x_device_ohci = { .name = "pxa27x-ohci", .id = -1, .dev = { @@ -314,7 +416,7 @@ static struct resource i2c_power_resources[] = { }, }; -static struct platform_device pxa27x_device_i2c_power = { +struct platform_device pxa27x_device_i2c_power = { .name = "pxa2xx-i2c", .id = 1, .resource = i2c_power_resources, @@ -336,17 +438,12 @@ static struct platform_device *devices[] __initdata = { &pxa27x_device_ohci, }; -void __init pxa27x_init_irq(void) -{ - pxa_init_irq_low(); - pxa_init_irq_high(); - pxa_init_irq_gpio(128); -} - static int __init pxa27x_init(void) { int ret = 0; if (cpu_is_pxa27x()) { + clks_register(pxa27x_clks, ARRAY_SIZE(pxa27x_clks)); + if ((ret = pxa_init_dma(32))) return ret; #ifdef CONFIG_PM diff --git a/arch/arm/mach-pxa/pxa300.c b/arch/arm/mach-pxa/pxa300.c new file mode 100644 index 0000000..5363b13 --- /dev/null +++ b/arch/arm/mach-pxa/pxa300.c @@ -0,0 +1,93 @@ +/* + * linux/arch/arm/mach-pxa/pxa300.c + * + * Code specific to PXA300/PXA310 + * + * Copyright (C) 2007 Marvell Internation Ltd. + * + * 2007-08-21: eric miao <eric.y.miao@gmail.com> + * initial version + * + * 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/module.h> +#include <linux/kernel.h> + +#include <asm/hardware.h> +#include <asm/arch/mfp-pxa300.h> + +static struct pxa3xx_mfp_addr_map pxa300_mfp_addr_map[] __initdata = { + + MFP_ADDR_X(GPIO0, GPIO2, 0x00b4), + MFP_ADDR_X(GPIO3, GPIO26, 0x027c), + MFP_ADDR_X(GPIO27, GPIO127, 0x0400), + MFP_ADDR_X(GPIO0_2, GPIO6_2, 0x02ec), + + MFP_ADDR(nBE0, 0x0204), + MFP_ADDR(nBE1, 0x0208), + + MFP_ADDR(nLUA, 0x0244), + MFP_ADDR(nLLA, 0x0254), + + MFP_ADDR(DF_CLE_nOE, 0x0240), + MFP_ADDR(DF_nRE_nOE, 0x0200), + MFP_ADDR(DF_ALE_nWE, 0x020C), + MFP_ADDR(DF_INT_RnB, 0x00C8), + MFP_ADDR(DF_nCS0, 0x0248), + MFP_ADDR(DF_nCS1, 0x0278), + MFP_ADDR(DF_nWE, 0x00CC), + + MFP_ADDR(DF_ADDR0, 0x0210), + MFP_ADDR(DF_ADDR1, 0x0214), + MFP_ADDR(DF_ADDR2, 0x0218), + MFP_ADDR(DF_ADDR3, 0x021C), + + MFP_ADDR(DF_IO0, 0x0220), + MFP_ADDR(DF_IO1, 0x0228), + MFP_ADDR(DF_IO2, 0x0230), + MFP_ADDR(DF_IO3, 0x0238), + MFP_ADDR(DF_IO4, 0x0258), + MFP_ADDR(DF_IO5, 0x0260), + MFP_ADDR(DF_IO6, 0x0268), + MFP_ADDR(DF_IO7, 0x0270), + MFP_ADDR(DF_IO8, 0x0224), + MFP_ADDR(DF_IO9, 0x022C), + MFP_ADDR(DF_IO10, 0x0234), + MFP_ADDR(DF_IO11, 0x023C), + MFP_ADDR(DF_IO12, 0x025C), + MFP_ADDR(DF_IO13, 0x0264), + MFP_ADDR(DF_IO14, 0x026C), + MFP_ADDR(DF_IO15, 0x0274), + + MFP_ADDR_END, +}; + +/* override pxa300 MFP register addresses */ +static struct pxa3xx_mfp_addr_map pxa310_mfp_addr_map[] __initdata = { + MFP_ADDR_X(GPIO30, GPIO98, 0x0418), + MFP_ADDR_X(GPIO7_2, GPIO12_2, 0x052C), + + MFP_ADDR(ULPI_STP, 0x040C), + MFP_ADDR(ULPI_NXT, 0x0410), + MFP_ADDR(ULPI_DIR, 0x0414), + + MFP_ADDR_END, +}; + +static int __init pxa300_init(void) +{ + if (cpu_is_pxa300() || cpu_is_pxa310()) { + pxa3xx_init_mfp(); + pxa3xx_mfp_init_addr(pxa300_mfp_addr_map); + } + + if (cpu_is_pxa310()) + pxa3xx_mfp_init_addr(pxa310_mfp_addr_map); + + return 0; +} + +core_initcall(pxa300_init); diff --git a/arch/arm/mach-pxa/pxa320.c b/arch/arm/mach-pxa/pxa320.c new file mode 100644 index 0000000..cd9eba5 --- /dev/null +++ b/arch/arm/mach-pxa/pxa320.c @@ -0,0 +1,88 @@ +/* + * linux/arch/arm/mach-pxa/pxa320.c + * + * Code specific to PXA320 + * + * Copyright (C) 2007 Marvell Internation Ltd. + * + * 2007-08-21: eric miao <eric.y.miao@gmail.com> + * initial version + * + * 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/module.h> +#include <linux/kernel.h> + +#include <asm/hardware.h> +#include <asm/arch/mfp.h> +#include <asm/arch/mfp-pxa320.h> + +static struct pxa3xx_mfp_addr_map pxa320_mfp_addr_map[] __initdata = { + + MFP_ADDR_X(GPIO0, GPIO4, 0x0124), + MFP_ADDR_X(GPIO5, GPIO26, 0x028C), + MFP_ADDR_X(GPIO27, GPIO62, 0x0400), + MFP_ADDR_X(GPIO63, GPIO73, 0x04B4), + MFP_ADDR_X(GPIO74, GPIO98, 0x04F0), + MFP_ADDR_X(GPIO99, GPIO127, 0x0600), + MFP_ADDR_X(GPIO0_2, GPIO5_2, 0x0674), + MFP_ADDR_X(GPIO6_2, GPIO13_2, 0x0494), + MFP_ADDR_X(GPIO14_2, GPIO17_2, 0x04E0), + + MFP_ADDR(nXCVREN, 0x0138), + MFP_ADDR(DF_CLE_nOE, 0x0204), + MFP_ADDR(DF_nADV1_ALE, 0x0208), + MFP_ADDR(DF_SCLK_S, 0x020C), + MFP_ADDR(DF_SCLK_E, 0x0210), + MFP_ADDR(nBE0, 0x0214), + MFP_ADDR(nBE1, 0x0218), + MFP_ADDR(DF_nADV2_ALE, 0x021C), + MFP_ADDR(DF_INT_RnB, 0x0220), + MFP_ADDR(DF_nCS0, 0x0224), + MFP_ADDR(DF_nCS1, 0x0228), + MFP_ADDR(DF_nWE, 0x022C), + MFP_ADDR(DF_nRE_nOE, 0x0230), + MFP_ADDR(nLUA, 0x0234), + MFP_ADDR(nLLA, 0x0238), + MFP_ADDR(DF_ADDR0, 0x023C), + MFP_ADDR(DF_ADDR1, 0x0240), + MFP_ADDR(DF_ADDR2, 0x0244), + MFP_ADDR(DF_ADDR3, 0x0248), + MFP_ADDR(DF_IO0, 0x024C), + MFP_ADDR(DF_IO8, 0x0250), + MFP_ADDR(DF_IO1, 0x0254), + MFP_ADDR(DF_IO9, 0x0258), + MFP_ADDR(DF_IO2, 0x025C), + MFP_ADDR(DF_IO10, 0x0260), + MFP_ADDR(DF_IO3, 0x0264), + MFP_ADDR(DF_IO11, 0x0268), + MFP_ADDR(DF_IO4, 0x026C), + MFP_ADDR(DF_IO12, 0x0270), + MFP_ADDR(DF_IO5, 0x0274), + MFP_ADDR(DF_IO13, 0x0278), + MFP_ADDR(DF_IO6, 0x027C), + MFP_ADDR(DF_IO14, 0x0280), + MFP_ADDR(DF_IO7, 0x0284), + MFP_ADDR(DF_IO15, 0x0288), + + MFP_ADDR_END, +}; + +static void __init pxa320_init_mfp(void) +{ + pxa3xx_init_mfp(); + pxa3xx_mfp_init_addr(pxa320_mfp_addr_map); +} + +static int __init pxa320_init(void) +{ + if (cpu_is_pxa320()) + pxa320_init_mfp(); + + return 0; +} + +core_initcall(pxa320_init); diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c new file mode 100644 index 0000000..39f0de8 --- /dev/null +++ b/arch/arm/mach-pxa/pxa3xx.c @@ -0,0 +1,216 @@ +/* + * linux/arch/arm/mach-pxa/pxa3xx.c + * + * code specific to pxa3xx aka Monahans + * + * Copyright (C) 2006 Marvell International Ltd. + * + * 2007-09-02: eric miao <eric.y.miao@gmail.com> + * initial version + * + * 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/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/pm.h> +#include <linux/platform_device.h> +#include <linux/irq.h> + +#include <asm/hardware.h> +#include <asm/arch/pxa3xx-regs.h> +#include <asm/arch/ohci.h> +#include <asm/arch/pm.h> +#include <asm/arch/dma.h> +#include <asm/arch/ssp.h> + +#include "generic.h" +#include "devices.h" +#include "clock.h" + +/* Crystal clock: 13MHz */ +#define BASE_CLK 13000000 + +/* Ring Oscillator Clock: 60MHz */ +#define RO_CLK 60000000 + +#define ACCR_D0CS (1 << 26) + +/* crystal frequency to static memory controller multiplier (SMCFS) */ +static unsigned char smcfs_mult[8] = { 6, 0, 8, 0, 0, 16, }; + +/* crystal frequency to HSIO bus frequency multiplier (HSS) */ +static unsigned char hss_mult[4] = { 8, 12, 16, 0 }; + +/* + * Get the clock frequency as reflected by CCSR and the turbo flag. + * We assume these values have been applied via a fcs. + * If info is not 0 we also display the current settings. + */ +unsigned int pxa3xx_get_clk_frequency_khz(int info) +{ + unsigned long acsr, xclkcfg; + unsigned int t, xl, xn, hss, ro, XL, XN, CLK, HSS; + + /* Read XCLKCFG register turbo bit */ + __asm__ __volatile__("mrc\tp14, 0, %0, c6, c0, 0" : "=r"(xclkcfg)); + t = xclkcfg & 0x1; + + acsr = ACSR; + + xl = acsr & 0x1f; + xn = (acsr >> 8) & 0x7; + hss = (acsr >> 14) & 0x3; + + XL = xl * BASE_CLK; + XN = xn * XL; + + ro = acsr & ACCR_D0CS; + + CLK = (ro) ? RO_CLK : ((t) ? XN : XL); + HSS = (ro) ? RO_CLK : hss_mult[hss] * BASE_CLK; + + if (info) { + pr_info("RO Mode clock: %d.%02dMHz (%sactive)\n", + RO_CLK / 1000000, (RO_CLK % 1000000) / 10000, + (ro) ? "" : "in"); + pr_info("Run Mode clock: %d.%02dMHz (*%d)\n", + XL / 1000000, (XL % 1000000) / 10000, xl); + pr_info("Turbo Mode clock: %d.%02dMHz (*%d, %sactive)\n", + XN / 1000000, (XN % 1000000) / 10000, xn, + (t) ? "" : "in"); + pr_info("HSIO bus clock: %d.%02dMHz\n", + HSS / 1000000, (HSS % 1000000) / 10000); + } + + return CLK; +} + +/* + * Return the current static memory controller clock frequency + * in units of 10kHz + */ +unsigned int pxa3xx_get_memclk_frequency_10khz(void) +{ + unsigned long acsr; + unsigned int smcfs, clk = 0; + + acsr = ACSR; + + smcfs = (acsr >> 23) & 0x7; + clk = (acsr & ACCR_D0CS) ? RO_CLK : smcfs_mult[smcfs] * BASE_CLK; + + return (clk / 10000); +} + +/* + * Return the current HSIO bus clock frequency + */ +static unsigned long clk_pxa3xx_hsio_getrate(struct clk *clk) +{ + unsigned long acsr; + unsigned int hss, hsio_clk; + + acsr = ACSR; + + hss = (acsr >> 14) & 0x3; + hsio_clk = (acsr & ACCR_D0CS) ? RO_CLK : hss_mult[hss] * BASE_CLK; + + return hsio_clk; +} + +static void clk_pxa3xx_cken_enable(struct clk *clk) +{ + unsigned long mask = 1ul << (clk->cken & 0x1f); + + local_irq_disable(); + + if (clk->cken < 32) + CKENA |= mask; + else + CKENB |= mask; + + local_irq_enable(); +} + +static void clk_pxa3xx_cken_disable(struct clk *clk) +{ + unsigned long mask = 1ul << (clk->cken & 0x1f); + + local_irq_disable(); + + if (clk->cken < 32) + CKENA &= ~mask; + else + CKENB &= ~mask; + + local_irq_enable(); +} + +static const struct clkops clk_pxa3xx_hsio_ops = { + .enable = clk_pxa3xx_cken_enable, + .disable = clk_pxa3xx_cken_disable, + .getrate = clk_pxa3xx_hsio_getrate, +}; + +static struct clk pxa3xx_clks[] = { + INIT_CK("LCDCLK", LCD, &clk_pxa3xx_hsio_ops, &pxa_device_fb.dev), + INIT_CK("CAMCLK", CAMERA, &clk_pxa3xx_hsio_ops, NULL), + + INIT_CKEN("UARTCLK", FFUART, 14857000, 1, &pxa_device_ffuart.dev), + INIT_CKEN("UARTCLK", BTUART, 14857000, 1, &pxa_device_btuart.dev), + INIT_CKEN("UARTCLK", STUART, 14857000, 1, NULL), + + INIT_CKEN("I2CCLK", I2C, 32842000, 0, &pxa_device_i2c.dev), + INIT_CKEN("UDCCLK", UDC, 48000000, 5, &pxa_device_udc.dev), +}; + +void __init pxa3xx_init_irq(void) +{ + /* enable CP6 access */ + u32 value; + __asm__ __volatile__("mrc p15, 0, %0, c15, c1, 0\n": "=r"(value)); + value |= (1 << 6); + __asm__ __volatile__("mcr p15, 0, %0, c15, c1, 0\n": :"r"(value)); + + pxa_init_irq_low(); + pxa_init_irq_high(); + pxa_init_irq_gpio(128); +} + +/* + * device registration specific to PXA3xx. + */ + +static struct platform_device *devices[] __initdata = { + &pxa_device_mci, + &pxa_device_udc, + &pxa_device_fb, + &pxa_device_ffuart, + &pxa_device_btuart, + &pxa_device_stuart, + &pxa_device_i2c, + &pxa_device_i2s, + &pxa_device_ficp, + &pxa_device_rtc, +}; + +static int __init pxa3xx_init(void) +{ + int ret = 0; + + if (cpu_is_pxa3xx()) { + clks_register(pxa3xx_clks, ARRAY_SIZE(pxa3xx_clks)); + + if ((ret = pxa_init_dma(32))) + return ret; + + return platform_add_devices(devices, ARRAY_SIZE(devices)); + } + return 0; +} + +subsys_initcall(pxa3xx_init); diff --git a/arch/arm/mach-pxa/time.c b/arch/arm/mach-pxa/time.c index 98d27e6..ec4286c 100644 --- a/arch/arm/mach-pxa/time.c +++ b/arch/arm/mach-pxa/time.c @@ -16,10 +16,48 @@ #include <linux/init.h> #include <linux/interrupt.h> #include <linux/clockchips.h> +#include <linux/sched.h> +#include <asm/div64.h> +#include <asm/cnt32_to_63.h> #include <asm/mach/irq.h> #include <asm/mach/time.h> #include <asm/arch/pxa-regs.h> +#include <asm/mach-types.h> + +/* + * This is PXA's sched_clock implementation. This has a resolution + * of at least 308 ns and a maximum value of 208 days. + * + * The return value is guaranteed to be monotonic in that range as + * long as there is always less than 582 seconds between successive + * calls to sched_clock() which should always be the case in practice. + */ + +#define OSCR2NS_SCALE_FACTOR 10 + +static unsigned long oscr2ns_scale; + +static void __init set_oscr2ns_scale(unsigned long oscr_rate) +{ + unsigned long long v = 1000000000ULL << OSCR2NS_SCALE_FACTOR; + do_div(v, oscr_rate); + oscr2ns_scale = v; + /* + * We want an even value to automatically clear the top bit + * returned by cnt32_to_63() without an additional run time + * instruction. So if the LSB is 1 then round it up. + */ + if (oscr2ns_scale & 1) + oscr2ns_scale++; +} + +unsigned long long sched_clock(void) +{ + unsigned long long v = cnt32_to_63(OSCR); + return (v * oscr2ns_scale) >> OSCR2NS_SCALE_FACTOR; +} + static irqreturn_t pxa_ost0_interrupt(int irq, void *dev_id) @@ -149,18 +187,29 @@ static struct irqaction pxa_ost0_irq = { static void __init pxa_timer_init(void) { + unsigned long clock_tick_rate; + OIER = 0; OSSR = OSSR_M0 | OSSR_M1 | OSSR_M2 | OSSR_M3; + if (cpu_is_pxa21x() || cpu_is_pxa25x()) + clock_tick_rate = 3686400; + else if (machine_is_mainstone()) + clock_tick_rate = 3249600; + else + clock_tick_rate = 3250000; + + set_oscr2ns_scale(clock_tick_rate); + ckevt_pxa_osmr0.mult = - div_sc(CLOCK_TICK_RATE, NSEC_PER_SEC, ckevt_pxa_osmr0.shift); + div_sc(clock_tick_rate, NSEC_PER_SEC, ckevt_pxa_osmr0.shift); ckevt_pxa_osmr0.max_delta_ns = clockevent_delta2ns(0x7fffffff, &ckevt_pxa_osmr0); ckevt_pxa_osmr0.min_delta_ns = clockevent_delta2ns(MIN_OSCR_DELTA, &ckevt_pxa_osmr0) + 1; cksrc_pxa_oscr0.mult = - clocksource_hz2mult(CLOCK_TICK_RATE, cksrc_pxa_oscr0.shift); + clocksource_hz2mult(clock_tick_rate, cksrc_pxa_oscr0.shift); setup_irq(IRQ_OST0, &pxa_ost0_irq); diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c new file mode 100644 index 0000000..3f18d76 --- /dev/null +++ b/arch/arm/mach-pxa/zylonite.c @@ -0,0 +1,184 @@ +/* + * linux/arch/arm/mach-pxa/zylonite.c + * + * Support for the PXA3xx Development Platform (aka Zylonite) + * + * Copyright (C) 2006 Marvell International Ltd. + * + * 2007-09-04: eric miao <eric.y.miao@gmail.com> + * rewrite to align with latest kernel + * + * 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/module.h> +#include <linux/kernel.h> +#include <linux/interrupt.h> +#include <linux/init.h> +#include <linux/platform_device.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/hardware.h> +#include <asm/arch/gpio.h> +#include <asm/arch/pxafb.h> +#include <asm/arch/zylonite.h> + +#include "generic.h" + +int gpio_backlight; +int gpio_eth_irq; + +int lcd_id; +int lcd_orientation; + +static struct resource smc91x_resources[] = { + [0] = { + .start = ZYLONITE_ETH_PHYS + 0x300, + .end = ZYLONITE_ETH_PHYS + 0xfffff, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = -1, /* for run-time assignment */ + .end = -1, + .flags = IORESOURCE_IRQ, + } +}; + +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; + +#if defined(CONFIG_FB_PXA) || (CONFIG_FB_PXA_MODULES) +static void zylonite_backlight_power(int on) +{ + gpio_set_value(gpio_backlight, on); +} + +static struct pxafb_mode_info toshiba_ltm035a776c_mode = { + .pixclock = 110000, + .xres = 240, + .yres = 320, + .bpp = 16, + .hsync_len = 4, + .left_margin = 6, + .right_margin = 4, + .vsync_len = 2, + .upper_margin = 2, + .lower_margin = 3, + .sync = FB_SYNC_VERT_HIGH_ACT, +}; + +static struct pxafb_mode_info toshiba_ltm04c380k_mode = { + .pixclock = 50000, + .xres = 640, + .yres = 480, + .bpp = 16, + .hsync_len = 1, + .left_margin = 0x9f, + .right_margin = 1, + .vsync_len = 44, + .upper_margin = 0, + .lower_margin = 0, + .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, +}; + +static struct pxafb_mach_info zylonite_toshiba_lcd_info = { + .num_modes = 1, + .lccr0 = LCCR0_Act, + .lccr3 = LCCR3_PCP, + .pxafb_backlight_power = zylonite_backlight_power, +}; + +static struct pxafb_mode_info sharp_ls037_modes[] = { + [0] = { + .pixclock = 158000, + .xres = 240, + .yres = 320, + .bpp = 16, + .hsync_len = 4, + .left_margin = 39, + .right_margin = 39, + .vsync_len = 1, + .upper_margin = 2, + .lower_margin = 3, + .sync = 0, + }, + [1] = { + .pixclock = 39700, + .xres = 480, + .yres = 640, + .bpp = 16, + .hsync_len = 8, + .left_margin = 81, + .right_margin = 81, + .vsync_len = 1, + .upper_margin = 2, + .lower_margin = 7, + .sync = 0, + }, +}; + +static struct pxafb_mach_info zylonite_sharp_lcd_info = { + .modes = sharp_ls037_modes, + .num_modes = 2, + .lccr0 = LCCR0_Act, + .lccr3 = LCCR3_PCP | LCCR3_HSP | LCCR3_VSP, + .pxafb_backlight_power = zylonite_backlight_power, +}; + +static void __init zylonite_init_lcd(void) +{ + /* backlight GPIO: output, default on */ + gpio_direction_output(gpio_backlight, 1); + + if (lcd_id & 0x20) { + set_pxa_fb_info(&zylonite_sharp_lcd_info); + return; + } + + /* legacy LCD panels, it would be handy here if LCD panel type can + * be decided at run-time + */ + if (1) + zylonite_toshiba_lcd_info.modes = &toshiba_ltm035a776c_mode; + else + zylonite_toshiba_lcd_info.modes = &toshiba_ltm04c380k_mode; + + set_pxa_fb_info(&zylonite_toshiba_lcd_info); +} +#else +static inline void zylonite_init_lcd(void) {} +#endif + +static void __init zylonite_init(void) +{ + /* board-processor specific initialization */ + zylonite_pxa300_init(); + zylonite_pxa320_init(); + + /* + * Note: We depend that the bootloader set + * the correct value to MSC register for SMC91x. + */ + smc91x_resources[1].start = gpio_to_irq(gpio_eth_irq); + smc91x_resources[1].end = gpio_to_irq(gpio_eth_irq); + platform_device_register(&smc91x_device); + + zylonite_init_lcd(); +} + +MACHINE_START(ZYLONITE, "PXA3xx Platform Development Kit (aka Zylonite)") + .phys_io = 0x40000000, + .boot_params = 0xa0000100, + .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, + .map_io = pxa_map_io, + .init_irq = pxa3xx_init_irq, + .timer = &pxa_timer, + .init_machine = zylonite_init, +MACHINE_END diff --git a/arch/arm/mach-pxa/zylonite_pxa300.c b/arch/arm/mach-pxa/zylonite_pxa300.c new file mode 100644 index 0000000..b5fbd2f --- /dev/null +++ b/arch/arm/mach-pxa/zylonite_pxa300.c @@ -0,0 +1,188 @@ +/* + * linux/arch/arm/mach-pxa/zylonite_pxa300.c + * + * PXA300/PXA310 specific support code for the + * PXA3xx Development Platform (aka Zylonite) + * + * Copyright (C) 2007 Marvell Internation Ltd. + * 2007-08-21: eric miao <eric.y.miao@gmail.com> + * initial version + * + * 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/module.h> +#include <linux/kernel.h> +#include <linux/init.h> + +#include <asm/gpio.h> +#include <asm/arch/mfp-pxa300.h> +#include <asm/arch/zylonite.h> + +#define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x) + +/* PXA300/PXA310 common configurations */ +static mfp_cfg_t common_mfp_cfg[] __initdata = { + /* LCD */ + GPIO54_LCD_LDD_0, + GPIO55_LCD_LDD_1, + GPIO56_LCD_LDD_2, + GPIO57_LCD_LDD_3, + GPIO58_LCD_LDD_4, + GPIO59_LCD_LDD_5, + GPIO60_LCD_LDD_6, + GPIO61_LCD_LDD_7, + GPIO62_LCD_LDD_8, + GPIO63_LCD_LDD_9, + GPIO64_LCD_LDD_10, + GPIO65_LCD_LDD_11, + GPIO66_LCD_LDD_12, + GPIO67_LCD_LDD_13, + GPIO68_LCD_LDD_14, + GPIO69_LCD_LDD_15, + GPIO70_LCD_LDD_16, + GPIO71_LCD_LDD_17, + GPIO72_LCD_FCLK, + GPIO73_LCD_LCLK, + GPIO74_LCD_PCLK, + GPIO75_LCD_BIAS, + GPIO76_LCD_VSYNC, + GPIO127_LCD_CS_N, + + /* BTUART */ + GPIO111_UART2_RTS, + GPIO112_UART2_RXD, + GPIO113_UART2_TXD, + GPIO114_UART2_CTS, + + /* STUART */ + GPIO109_UART3_TXD, + GPIO110_UART3_RXD, + + /* AC97 */ + GPIO23_AC97_nACRESET, + GPIO24_AC97_SYSCLK, + GPIO29_AC97_BITCLK, + GPIO25_AC97_SDATA_IN_0, + GPIO27_AC97_SDATA_OUT, + GPIO28_AC97_SYNC, + + /* Keypad */ + GPIO107_KP_DKIN_0, + GPIO108_KP_DKIN_1, + GPIO115_KP_MKIN_0, + GPIO116_KP_MKIN_1, + GPIO117_KP_MKIN_2, + GPIO118_KP_MKIN_3, + GPIO119_KP_MKIN_4, + GPIO120_KP_MKIN_5, + GPIO2_2_KP_MKIN_6, + GPIO3_2_KP_MKIN_7, + GPIO121_KP_MKOUT_0, + GPIO122_KP_MKOUT_1, + GPIO123_KP_MKOUT_2, + GPIO124_KP_MKOUT_3, + GPIO125_KP_MKOUT_4, + GPIO4_2_KP_MKOUT_5, + GPIO5_2_KP_MKOUT_6, + GPIO6_2_KP_MKOUT_7, +}; + +static mfp_cfg_t pxa300_mfp_cfg[] __initdata = { + /* FFUART */ + GPIO30_UART1_RXD, + GPIO31_UART1_TXD, + GPIO32_UART1_CTS, + GPIO37_UART1_RTS, + GPIO33_UART1_DCD, + GPIO34_UART1_DSR, + GPIO35_UART1_RI, + GPIO36_UART1_DTR, + + /* Ethernet */ + GPIO2_nCS3, + GPIO99_GPIO, +}; + +static mfp_cfg_t pxa310_mfp_cfg[] __initdata = { + /* FFUART */ + GPIO99_UART1_RXD, + GPIO100_UART1_TXD, + GPIO101_UART1_CTS, + GPIO106_UART1_RTS, + + /* Ethernet */ + GPIO2_nCS3, + GPIO102_GPIO, +}; + +#define NUM_LCD_DETECT_PINS 7 + +static int lcd_detect_pins[] __initdata = { + MFP_PIN_GPIO71, /* LCD_LDD_17 - ORIENT */ + MFP_PIN_GPIO70, /* LCD_LDD_16 - LCDID[5] */ + MFP_PIN_GPIO75, /* LCD_BIAS - LCDID[4] */ + MFP_PIN_GPIO73, /* LCD_LCLK - LCDID[3] */ + MFP_PIN_GPIO72, /* LCD_FCLK - LCDID[2] */ + MFP_PIN_GPIO127,/* LCD_CS_N - LCDID[1] */ + MFP_PIN_GPIO76, /* LCD_VSYNC - LCDID[0] */ +}; + +static void __init zylonite_detect_lcd_panel(void) +{ + unsigned long mfpr_save[NUM_LCD_DETECT_PINS]; + int i, gpio, id = 0; + + /* save the original MFP settings of these pins and configure + * them as GPIO Input, DS01X, Pull Neither, Edge Clear + */ + for (i = 0; i < NUM_LCD_DETECT_PINS; i++) { + mfpr_save[i] = pxa3xx_mfp_read(lcd_detect_pins[i]); + pxa3xx_mfp_write(lcd_detect_pins[i], 0x8440); + } + + for (i = 0; i < NUM_LCD_DETECT_PINS; i++) { + id = id << 1; + gpio = mfp_to_gpio(lcd_detect_pins[i]); + gpio_direction_input(gpio); + + if (gpio_get_value(gpio)) + id = id | 0x1; + } + + /* lcd id, flush out bit 1 */ + lcd_id = id & 0x3d; + + /* lcd orientation, portrait or landscape */ + lcd_orientation = (id >> 6) & 0x1; + + /* restore the original MFP settings */ + for (i = 0; i < NUM_LCD_DETECT_PINS; i++) + pxa3xx_mfp_write(lcd_detect_pins[i], mfpr_save[i]); +} + +void __init zylonite_pxa300_init(void) +{ + if (cpu_is_pxa300() || cpu_is_pxa310()) { + /* initialize MFP */ + pxa3xx_mfp_config(ARRAY_AND_SIZE(common_mfp_cfg)); + + /* detect LCD panel */ + zylonite_detect_lcd_panel(); + + /* GPIO pin assignment */ + gpio_backlight = mfp_to_gpio(MFP_PIN_GPIO20); + } + + if (cpu_is_pxa300()) { + pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa300_mfp_cfg)); + gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO99); + } + + if (cpu_is_pxa310()) { + pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa310_mfp_cfg)); + gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO102); + } +} diff --git a/arch/arm/mach-pxa/zylonite_pxa320.c b/arch/arm/mach-pxa/zylonite_pxa320.c new file mode 100644 index 0000000..63cb36b --- /dev/null +++ b/arch/arm/mach-pxa/zylonite_pxa320.c @@ -0,0 +1,173 @@ +/* + * linux/arch/arm/mach-pxa/zylonite_pxa320.c + * + * PXA320 specific support code for the + * PXA3xx Development Platform (aka Zylonite) + * + * Copyright (C) 2007 Marvell Internation Ltd. + * 2007-08-21: eric miao <eric.y.miao@gmail.com> + * initial version + * + * 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/module.h> +#include <linux/kernel.h> +#include <linux/init.h> + +#include <asm/arch/gpio.h> +#include <asm/arch/mfp-pxa320.h> +#include <asm/arch/zylonite.h> + +#define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x) + +static mfp_cfg_t mfp_cfg[] __initdata = { + /* LCD */ + GPIO6_2_LCD_LDD_0, + GPIO7_2_LCD_LDD_1, + GPIO8_2_LCD_LDD_2, + GPIO9_2_LCD_LDD_3, + GPIO10_2_LCD_LDD_4, + GPIO11_2_LCD_LDD_5, + GPIO12_2_LCD_LDD_6, + GPIO13_2_LCD_LDD_7, + GPIO63_LCD_LDD_8, + GPIO64_LCD_LDD_9, + GPIO65_LCD_LDD_10, + GPIO66_LCD_LDD_11, + GPIO67_LCD_LDD_12, + GPIO68_LCD_LDD_13, + GPIO69_LCD_LDD_14, + GPIO70_LCD_LDD_15, + GPIO71_LCD_LDD_16, + GPIO72_LCD_LDD_17, + GPIO73_LCD_CS_N, + GPIO74_LCD_VSYNC, + GPIO14_2_LCD_FCLK, + GPIO15_2_LCD_LCLK, + GPIO16_2_LCD_PCLK, + GPIO17_2_LCD_BIAS, + + /* FFUART */ + GPIO41_UART1_RXD, + GPIO42_UART1_TXD, + GPIO43_UART1_CTS, + GPIO44_UART1_DCD, + GPIO45_UART1_DSR, + GPIO46_UART1_RI, + GPIO47_UART1_DTR, + GPIO48_UART1_RTS, + + /* AC97 */ + GPIO34_AC97_SYSCLK, + GPIO35_AC97_SDATA_IN_0, + GPIO37_AC97_SDATA_OUT, + GPIO38_AC97_SYNC, + GPIO39_AC97_BITCLK, + GPIO40_AC97_nACRESET, + + /* I2C */ + GPIO32_I2C_SCL, + GPIO33_I2C_SDA, + + /* Keypad */ + GPIO105_KP_DKIN_0, + GPIO106_KP_DKIN_1, + GPIO113_KP_MKIN_0, + GPIO114_KP_MKIN_1, + GPIO115_KP_MKIN_2, + GPIO116_KP_MKIN_3, + GPIO117_KP_MKIN_4, + GPIO118_KP_MKIN_5, + GPIO119_KP_MKIN_6, + GPIO120_KP_MKIN_7, + GPIO121_KP_MKOUT_0, + GPIO122_KP_MKOUT_1, + GPIO123_KP_MKOUT_2, + GPIO124_KP_MKOUT_3, + GPIO125_KP_MKOUT_4, + GPIO126_KP_MKOUT_5, + GPIO127_KP_MKOUT_6, + GPIO5_2_KP_MKOUT_7, + + /* Ethernet */ + GPIO4_nCS3, + GPIO90_GPIO, +}; + +#define NUM_LCD_DETECT_PINS 7 + +static int lcd_detect_pins[] __initdata = { + MFP_PIN_GPIO72, /* LCD_LDD_17 - ORIENT */ + MFP_PIN_GPIO71, /* LCD_LDD_16 - LCDID[5] */ + MFP_PIN_GPIO17_2, /* LCD_BIAS - LCDID[4] */ + MFP_PIN_GPIO15_2, /* LCD_LCLK - LCDID[3] */ + MFP_PIN_GPIO14_2, /* LCD_FCLK - LCDID[2] */ + MFP_PIN_GPIO73, /* LCD_CS_N - LCDID[1] */ + MFP_PIN_GPIO74, /* LCD_VSYNC - LCDID[0] */ + /* + * set the MFP_PIN_GPIO 14/15/17 to alternate function other than + * GPIO to avoid input level confliction with 14_2, 15_2, 17_2 + */ + MFP_PIN_GPIO14, + MFP_PIN_GPIO15, + MFP_PIN_GPIO17, +}; + +static int lcd_detect_mfpr[] __initdata = { + /* AF0, DS 1X, Pull Neither, Edge Clear */ + 0x8440, 0x8440, 0x8440, 0x8440, 0x8440, 0x8440, 0x8440, + 0xc442, /* Backlight, Pull-Up, AF2 */ + 0x8445, /* AF5 */ + 0x8445, /* AF5 */ +}; + +static void __init zylonite_detect_lcd_panel(void) +{ + unsigned long mfpr_save[ARRAY_SIZE(lcd_detect_pins)]; + int i, gpio, id = 0; + + /* save the original MFP settings of these pins and configure them + * as GPIO Input, DS01X, Pull Neither, Edge Clear + */ + for (i = 0; i < ARRAY_SIZE(lcd_detect_pins); i++) { + mfpr_save[i] = pxa3xx_mfp_read(lcd_detect_pins[i]); + pxa3xx_mfp_write(lcd_detect_pins[i], lcd_detect_mfpr[i]); + } + + for (i = 0; i < NUM_LCD_DETECT_PINS; i++) { + id = id << 1; + gpio = mfp_to_gpio(lcd_detect_pins[i]); + gpio_direction_input(gpio); + + if (gpio_get_value(gpio)) + id = id | 0x1; + } + + /* lcd id, flush out bit 1 */ + lcd_id = id & 0x3d; + + /* lcd orientation, portrait or landscape */ + lcd_orientation = (id >> 6) & 0x1; + + /* restore the original MFP settings */ + for (i = 0; i < ARRAY_SIZE(lcd_detect_pins); i++) + pxa3xx_mfp_write(lcd_detect_pins[i], mfpr_save[i]); +} + +void __init zylonite_pxa320_init(void) +{ + if (cpu_is_pxa320()) { + /* initialize MFP */ + pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_cfg)); + + /* detect LCD panel */ + zylonite_detect_lcd_panel(); + + /* GPIO pin assignment */ + gpio_backlight = mfp_to_gpio(MFP_PIN_GPIO14); + gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO9); + } +} |
