diff options
Diffstat (limited to 'arch/arm/mach-pxa/pxa27x.c')
| -rw-r--r-- | arch/arm/mach-pxa/pxa27x.c | 127 |
1 files changed, 112 insertions, 15 deletions
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c index 203371ab19db..2d7fc39732e4 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 |