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author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-15 23:08:50 (GMT) |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-15 23:08:50 (GMT) |
commit | 65a6ec0d72a07f16719e9b7a96e1c4bae044b591 (patch) | |
tree | 344e03a5039a44982c1b78d6113633b21b434820 /arch/arm/mach-pxa/pxa25x.c | |
parent | 541010e4b8921cd781ff02ae68028501457045b6 (diff) | |
parent | 0181b61a988424b5cc44fe09e6968142359c815e (diff) | |
download | linux-65a6ec0d72a07f16719e9b7a96e1c4bae044b591.tar.xz |
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (95 commits)
[ARM] 4578/1: CM-x270: PCMCIA support
[ARM] 4577/1: ITE 8152 PCI bridge support
[ARM] 4576/1: CM-X270 machine support
[ARM] pxa: Avoid pxa_gpio_mode() in gpio_direction_{in,out}put()
[ARM] pxa: move pxa_set_mode() from pxa2xx_mainstone.c to mainstone.c
[ARM] pxa: move pxa_set_mode() from pxa2xx_lubbock.c to lubbock.c
[ARM] pxa: Make cpu_is_pxaXXX dependent on configuration symbols
[ARM] pxa: PXA3xx base support
[NET] smc91x: fix PXA DMA support code
[SERIAL] Fix console initialisation ordering
[ARM] pxa: tidy up arch/arm/mach-pxa/Makefile
[ARM] Update arch/arm/Kconfig for drivers/Kconfig changes
[ARM] 4600/1: fix kernel build failure with build-id-supporting binutils
[ARM] 4599/1: Preserve ATAG list for use with kexec (2.6.23)
[ARM] Rename consistent_sync() as dma_cache_maint()
[ARM] 4572/1: ep93xx: add cirrus logic edb9307 support
[ARM] 4596/1: S3C2412: Correct IRQs for SDI+CF and add decoding support
[ARM] 4595/1: ns9xxx: define registers as void __iomem * instead of volatile u32
[ARM] 4594/1: ns9xxx: use the new gpio functions
[ARM] 4593/1: ns9xxx: implement generic clockevents
...
Diffstat (limited to 'arch/arm/mach-pxa/pxa25x.c')
-rw-r--r-- | arch/arm/mach-pxa/pxa25x.c | 90 |
1 files changed, 78 insertions, 12 deletions
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 |