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author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-30 17:36:49 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-30 17:36:49 -0800 |
commit | 14a3c4ab0e58d143c7928c9eb2f2610205e13bf2 (patch) | |
tree | 885992999d7a1a2fd3586efcf32ebcbcbc3a72aa /arch/arm/mach-pxa/eseries.c | |
parent | 1af237a099a3b8ff56aa384f605c6a68af7bf288 (diff) | |
parent | 47992cbdaef2f18a47871b2ed01ad27f568c8b73 (diff) |
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (407 commits)
[ARM] pxafb: add support for overlay1 and overlay2 as framebuffer devices
[ARM] pxafb: cleanup of the timing checking code
[ARM] pxafb: cleanup of the color format manipulation code
[ARM] pxafb: add palette format support for LCCR4_PAL_FOR_3
[ARM] pxafb: add support for FBIOPAN_DISPLAY by dma braching
[ARM] pxafb: allow pxafb_set_par() to start from arbitrary yoffset
[ARM] pxafb: allow video memory size to be configurable
[ARM] pxa: add document on the MFP design and how to use it
[ARM] sa1100_wdt: don't assume CLOCK_TICK_RATE to be a constant
[ARM] rtc-sa1100: don't assume CLOCK_TICK_RATE to be a constant
[ARM] pxa/tavorevb: update board support (smartpanel LCD + keypad)
[ARM] pxa: Update eseries defconfig
[ARM] 5352/1: add w90p910-plat config file
[ARM] s3c: S3C options should depend on PLAT_S3C
[ARM] mv78xx0: implement GPIO and GPIO interrupt support
[ARM] Kirkwood: implement GPIO and GPIO interrupt support
[ARM] Orion: share GPIO IRQ handling code
[ARM] Orion: share GPIO handling code
[ARM] s3c: define __io using the typesafe version
[ARM] S3C64XX: Ensure CPU_V6 is selected
...
Diffstat (limited to 'arch/arm/mach-pxa/eseries.c')
-rw-r--r-- | arch/arm/mach-pxa/eseries.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/eseries.c b/arch/arm/mach-pxa/eseries.c index d28849b50a1..dfce7d5b659 100644 --- a/arch/arm/mach-pxa/eseries.c +++ b/arch/arm/mach-pxa/eseries.c @@ -12,6 +12,9 @@ #include <linux/kernel.h> #include <linux/init.h> +#include <linux/gpio.h> +#include <linux/delay.h> +#include <linux/platform_device.h> #include <asm/setup.h> #include <asm/mach/arch.h> @@ -21,8 +24,10 @@ #include <mach/hardware.h> #include <mach/eseries-gpio.h> #include <mach/udc.h> +#include <mach/irda.h> #include "generic.h" +#include "clock.h" /* Only e800 has 128MB RAM */ void __init eseries_fixup(struct machine_desc *desc, @@ -43,3 +48,122 @@ struct pxa2xx_udc_mach_info e7xx_udc_mach_info = { .gpio_pullup_inverted = 1 }; +static void e7xx_irda_transceiver_mode(struct device *dev, int mode) +{ + if (mode & IR_OFF) { + gpio_set_value(GPIO_E7XX_IR_OFF, 1); + pxa2xx_transceiver_mode(dev, mode); + } else { + pxa2xx_transceiver_mode(dev, mode); + gpio_set_value(GPIO_E7XX_IR_OFF, 0); + } +} + +int e7xx_irda_init(void) +{ + int ret; + + ret = gpio_request(GPIO_E7XX_IR_OFF, "IrDA power"); + if (ret) + goto out; + + ret = gpio_direction_output(GPIO_E7XX_IR_OFF, 0); + if (ret) + goto out; + + e7xx_irda_transceiver_mode(NULL, IR_SIRMODE | IR_OFF); +out: + return ret; +} + +static void e7xx_irda_shutdown(struct device *dev) +{ + e7xx_irda_transceiver_mode(dev, IR_SIRMODE | IR_OFF); + gpio_free(GPIO_E7XX_IR_OFF); +} + +struct pxaficp_platform_data e7xx_ficp_platform_data = { + .transceiver_cap = IR_SIRMODE | IR_OFF, + .transceiver_mode = e7xx_irda_transceiver_mode, + .shutdown = e7xx_irda_shutdown, +}; + +int eseries_tmio_enable(struct platform_device *dev) +{ + /* Reset - bring SUSPEND high before PCLR */ + gpio_set_value(GPIO_ESERIES_TMIO_SUSPEND, 0); + gpio_set_value(GPIO_ESERIES_TMIO_PCLR, 0); + msleep(1); + gpio_set_value(GPIO_ESERIES_TMIO_SUSPEND, 1); + msleep(1); + gpio_set_value(GPIO_ESERIES_TMIO_PCLR, 1); + msleep(1); + return 0; +} + +int eseries_tmio_disable(struct platform_device *dev) +{ + gpio_set_value(GPIO_ESERIES_TMIO_SUSPEND, 0); + gpio_set_value(GPIO_ESERIES_TMIO_PCLR, 0); + return 0; +} + +int eseries_tmio_suspend(struct platform_device *dev) +{ + gpio_set_value(GPIO_ESERIES_TMIO_SUSPEND, 0); + return 0; +} + +int eseries_tmio_resume(struct platform_device *dev) +{ + gpio_set_value(GPIO_ESERIES_TMIO_SUSPEND, 1); + msleep(1); + return 0; +} + +void eseries_get_tmio_gpios(void) +{ + gpio_request(GPIO_ESERIES_TMIO_SUSPEND, NULL); + gpio_request(GPIO_ESERIES_TMIO_PCLR, NULL); + gpio_direction_output(GPIO_ESERIES_TMIO_SUSPEND, 0); + gpio_direction_output(GPIO_ESERIES_TMIO_PCLR, 0); +} + +/* TMIO controller uses the same resources on all e-series machines. */ +struct resource eseries_tmio_resources[] = { + [0] = { + .start = PXA_CS4_PHYS, + .end = PXA_CS4_PHYS + 0x1fffff, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_GPIO(GPIO_ESERIES_TMIO_IRQ), + .end = IRQ_GPIO(GPIO_ESERIES_TMIO_IRQ), + .flags = IORESOURCE_IRQ, + }, +}; + +/* Some e-series hardware cannot control the 32K clock */ +static void clk_32k_dummy(struct clk *clk) +{ +} + +static const struct clkops clk_32k_dummy_ops = { + .enable = clk_32k_dummy, + .disable = clk_32k_dummy, +}; + +static struct clk tmio_dummy_clk = { + .ops = &clk_32k_dummy_ops, + .rate = 32768, +}; + +static struct clk_lookup eseries_clkregs[] = { + INIT_CLKREG(&tmio_dummy_clk, NULL, "CLK_CK32K"), +}; + +void eseries_register_clks(void) +{ + clks_register(eseries_clkregs, ARRAY_SIZE(eseries_clkregs)); +} + |