#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/platform_device.h>
-#include <linux/ioport.h>
-#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>
#include <asm/pgtable.h>
#include <asm/mach/map.h>
#include <asm/arch/pxa-regs.h>
-#include <asm/arch/gpio.h>
-#include <asm/arch/udc.h>
-#include <asm/arch/pxafb.h>
-#include <asm/arch/mmc.h>
-#include <asm/arch/irda.h>
-#include <asm/arch/i2c.h>
-#include "devices.h"
#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
-
- return v;
-}
-
-/*
- * Handy function to set GPIO alternate functions
- */
-
-int pxa_gpio_mode(int gpio_mode)
-{
- unsigned long flags;
- int gpio = gpio_mode & GPIO_MD_MASK_NR;
- int fn = (gpio_mode & GPIO_MD_MASK_FN) >> 8;
- int gafr;
-
- if (gpio > PXA_LAST_GPIO)
- return -EINVAL;
-
- local_irq_save(flags);
- if (gpio_mode & GPIO_DFLT_LOW)
- GPCR(gpio) = GPIO_bit(gpio);
- else if (gpio_mode & GPIO_DFLT_HIGH)
- GPSR(gpio) = GPIO_bit(gpio);
- if (gpio_mode & GPIO_MD_MASK_DIR)
- GPDR(gpio) |= GPIO_bit(gpio);
+ 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
- GPDR(gpio) &= ~GPIO_bit(gpio);
- gafr = GAFR(gpio) & ~(0x3 << (((gpio) & 0xf)*2));
- GAFR(gpio) = gafr | (fn << (((gpio) & 0xf)*2));
- local_irq_restore(flags);
-
- return 0;
-}
-
-EXPORT_SYMBOL(pxa_gpio_mode);
-
-/*
- * Return GPIO level
- */
-int pxa_gpio_get_value(unsigned gpio)
-{
- return __gpio_get_value(gpio);
+ return pxa3xx_get_clk_frequency_khz(info);
}
-
-EXPORT_SYMBOL(pxa_gpio_get_value);
+EXPORT_SYMBOL(get_clk_frequency_khz);
/*
- * Set output GPIO level
+ * Return the current memory clock frequency in units of 10kHz
*/
-void pxa_gpio_set_value(unsigned gpio, int value)
+unsigned int get_memclk_frequency_10khz(void)
{
- __gpio_set_value(gpio, value);
+ 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(pxa_gpio_set_value);
+EXPORT_SYMBOL(get_memclk_frequency_10khz);
/*
* 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);
local_irq_restore(flags);
}
-
-EXPORT_SYMBOL(pxa_set_cken);
+EXPORT_SYMBOL(__pxa_set_cken);
/*
* Intel PXA2xx internal register mapping.
}, { /* Mem Ctl */
.virtual = 0xf6000000,
.pfn = __phys_to_pfn(0x48000000),
- .length = 0x00100000,
+ .length = 0x00200000,
.type = MT_DEVICE
}, { /* USB host */
.virtual = 0xf8000000,
iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc));
get_clk_frequency_khz(1);
}
-
-
-static struct resource pxamci_resources[] = {
- [0] = {
- .start = 0x41100000,
- .end = 0x41100fff,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = IRQ_MMC,
- .end = IRQ_MMC,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static u64 pxamci_dmamask = 0xffffffffUL;
-
-struct platform_device pxa_device_mci = {
- .name = "pxa2xx-mci",
- .id = -1,
- .dev = {
- .dma_mask = &pxamci_dmamask,
- .coherent_dma_mask = 0xffffffff,
- },
- .num_resources = ARRAY_SIZE(pxamci_resources),
- .resource = pxamci_resources,
-};
-
-void __init pxa_set_mci_info(struct pxamci_platform_data *info)
-{
- pxa_device_mci.dev.platform_data = info;
-}
-
-
-static struct pxa2xx_udc_mach_info pxa_udc_info;
-
-void __init pxa_set_udc_info(struct pxa2xx_udc_mach_info *info)
-{
- memcpy(&pxa_udc_info, info, sizeof *info);
-}
-
-static struct resource pxa2xx_udc_resources[] = {
- [0] = {
- .start = 0x40600000,
- .end = 0x4060ffff,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = IRQ_USB,
- .end = IRQ_USB,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static u64 udc_dma_mask = ~(u32)0;
-
-struct platform_device pxa_device_udc = {
- .name = "pxa2xx-udc",
- .id = -1,
- .resource = pxa2xx_udc_resources,
- .num_resources = ARRAY_SIZE(pxa2xx_udc_resources),
- .dev = {
- .platform_data = &pxa_udc_info,
- .dma_mask = &udc_dma_mask,
- }
-};
-
-static struct resource pxafb_resources[] = {
- [0] = {
- .start = 0x44000000,
- .end = 0x4400ffff,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = IRQ_LCD,
- .end = IRQ_LCD,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static u64 fb_dma_mask = ~(u64)0;
-
-struct platform_device pxa_device_fb = {
- .name = "pxa2xx-fb",
- .id = -1,
- .dev = {
- .dma_mask = &fb_dma_mask,
- .coherent_dma_mask = 0xffffffff,
- },
- .num_resources = ARRAY_SIZE(pxafb_resources),
- .resource = pxafb_resources,
-};
-
-void __init set_pxa_fb_info(struct pxafb_mach_info *info)
-{
- pxa_device_fb.dev.platform_data = info;
-}
-
-void __init set_pxa_fb_parent(struct device *parent_dev)
-{
- pxa_device_fb.dev.parent = parent_dev;
-}
-
-struct platform_device pxa_device_ffuart= {
- .name = "pxa2xx-uart",
- .id = 0,
-};
-struct platform_device pxa_device_btuart = {
- .name = "pxa2xx-uart",
- .id = 1,
-};
-struct platform_device pxa_device_stuart = {
- .name = "pxa2xx-uart",
- .id = 2,
-};
-struct platform_device pxa_device_hwuart = {
- .name = "pxa2xx-uart",
- .id = 3,
-};
-
-static struct resource pxai2c_resources[] = {
- {
- .start = 0x40301680,
- .end = 0x403016a3,
- .flags = IORESOURCE_MEM,
- }, {
- .start = IRQ_I2C,
- .end = IRQ_I2C,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-struct platform_device pxa_device_i2c = {
- .name = "pxa2xx-i2c",
- .id = 0,
- .resource = pxai2c_resources,
- .num_resources = ARRAY_SIZE(pxai2c_resources),
-};
-
-void __init pxa_set_i2c_info(struct i2c_pxa_platform_data *info)
-{
- pxa_device_i2c.dev.platform_data = info;
-}
-
-static struct resource pxai2s_resources[] = {
- {
- .start = 0x40400000,
- .end = 0x40400083,
- .flags = IORESOURCE_MEM,
- }, {
- .start = IRQ_I2S,
- .end = IRQ_I2S,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-struct platform_device pxa_device_i2s = {
- .name = "pxa2xx-i2s",
- .id = -1,
- .resource = pxai2s_resources,
- .num_resources = ARRAY_SIZE(pxai2s_resources),
-};
-
-static u64 pxaficp_dmamask = ~(u32)0;
-
-struct platform_device pxa_device_ficp = {
- .name = "pxa2xx-ir",
- .id = -1,
- .dev = {
- .dma_mask = &pxaficp_dmamask,
- .coherent_dma_mask = 0xffffffff,
- },
-};
-
-void __init pxa_set_ficp_info(struct pxaficp_platform_data *info)
-{
- pxa_device_ficp.dev.platform_data = info;
-}
-
-struct platform_device pxa_device_rtc = {
- .name = "sa1100-rtc",
- .id = -1,
-};
projects / linux-2.6-omap-h63xx.git / blobdiff