Re: [Resending PATCH 2/2] ARM: OMAP2: RTC board specific code: rebased

[Tony Lindgren <tony@atomide.com>]

* Girish. S. G. <girishsg@ti.com> [080627 13:30]:
> This patch adds rtc-twl4030 driver specific code.

Pushing today.

Tony


> Signed-off-by: Girish S G <girishsg@ti.com>
> ---
>  arch/arm/configs/omap_3430sdp_defconfig |   17 ++++++++
>  arch/arm/mach-omap2/board-3430sdp.c     |   64 ++++++++++++++++++++++++++++++++
>  2 files changed, 80 insertions(+), 1 deletion(-)
> 
> Index: linux-omap-2.6/arch/arm/configs/omap_3430sdp_defconfig
> ===================================================================
> --- linux-omap-2.6.orig/arch/arm/configs/omap_3430sdp_defconfig	2008-06-26
> 17:24:52.000000000 +0530
> +++ linux-omap-2.6/arch/arm/configs/omap_3430sdp_defconfig	2008-06-27
> 15:40:56.000000000 +0530
> @@ -1061,8 +1061,23 @@
>  CONFIG_MMC_OMAP_HS=y
>  # CONFIG_MMC_SPI is not set
>  # CONFIG_NEW_LEDS is not set
> +
> +#
> +# RTC interface
> +#
>  CONFIG_RTC_LIB=y
> -# CONFIG_RTC_CLASS is not set
> +CONFIG_RTC_CLASS=y
> +CONFIG_RTC_HCTOSYS=y
> +CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
> +CONFIG_RTC_INTF_SYSFS=y
> +CONFIG_RTC_INTF_PROC=y
> +CONFIG_RTC_INTF_DEV=y
> +
> +#
> +# I2C RTC driver
> +#
> +CONFIG_RTC_DRV_TWL4030=y
> +
>  # CONFIG_UIO is not set
> 
>  #
> Index: linux-omap-2.6/arch/arm/mach-omap2/board-3430sdp.c
> ===================================================================
> --- linux-omap-2.6.orig/arch/arm/mach-omap2/board-3430sdp.c	2008-06-26
> 17:24:52.000000000 +0530
> +++ linux-omap-2.6/arch/arm/mach-omap2/board-3430sdp.c	2008-06-27
> 15:49:37.000000000 +0530
> @@ -40,9 +40,11 @@
>  #include <asm/arch/keypad.h>
>  #include <asm/arch/dma.h>
>  #include <asm/arch/gpmc.h>
> +#include <linux/i2c/twl4030-rtc.h>
> 
>  #include <asm/io.h>
>  #include <asm/delay.h>
> +#include <asm/arch/control.h>
> 
>  #define	SDP3430_SMC91X_CS	3
> 
> @@ -50,6 +52,8 @@
>  #define ENABLE_VAUX3_DEV_GRP	0x20
> 
> 
> +#define TWL4030_MSECURE_GPIO 22
> +
>  static struct resource sdp3430_smc91x_resources[] = {
>  	[0] = {
>  		.start	= OMAP34XX_ETHR_START,
> @@ -122,6 +126,63 @@
> 
>  static int ts_gpio;
> 
> +#ifdef CONFIG_RTC_DRV_TWL4030
> +static int twl4030_rtc_init(void)
> +{
> +	int ret = 0;
> +
> +	/* 3430ES2.0 doesn't have msecure/gpio-22 line connected to T2 */
> +	if (is_device_type_gp() && is_sil_rev_less_than(OMAP3430_REV_ES2_0)) {
> +		u32 msecure_pad_config_reg = omap_ctrl_base_get() + 0xA3C;
> +		int mux_mask = 0x04;
> +		u16 tmp;
> +
> +		ret = omap_request_gpio(TWL4030_MSECURE_GPIO);
> +		if (ret < 0) {
> +			printk(KERN_ERR "twl4030_rtc_init: can't"
> +				"reserve GPIO:%d !\n", TWL4030_MSECURE_GPIO);
> +			goto out;
> +		}
> +		/*
> +		 * TWL4030 will be in secure mode if msecure line from OMAP
> +		 * is low. Make msecure line high in order to change the
> +		 * TWL4030 RTC time and calender registers.
> +		 */
> +		omap_set_gpio_direction(TWL4030_MSECURE_GPIO, 0);
> +
> +		tmp = omap_readw(msecure_pad_config_reg);
> +		tmp &= 0xF8; /* To enable mux mode 03/04 = GPIO_RTC */
> +		tmp |= mux_mask;/* To enable mux mode 03/04 = GPIO_RTC */
> +		omap_writew(tmp, msecure_pad_config_reg);
> +
> +		omap_set_gpio_dataout(TWL4030_MSECURE_GPIO, 1);
> +	}
> +out:
> +	return ret;
> +}
> +
> +static void twl4030_rtc_exit(void)
> +{
> +	if (is_device_type_gp() &&
> +			is_sil_rev_less_than(OMAP3430_REV_ES2_0)) {
> +		omap_free_gpio(TWL4030_MSECURE_GPIO);
> +	}
> +}
> +
> +static struct twl4030rtc_platform_data sdp3430_twl4030rtc_data = {
> +	.init = &twl4030_rtc_init,
> +	.exit = &twl4030_rtc_exit,
> +};
> +
> +static struct platform_device sdp3430_twl4030rtc_device = {
> +	.name = "twl4030_rtc",
> +	.id = -1,
> +	.dev = {
> +	.platform_data = &sdp3430_twl4030rtc_data,
> +	},
> +};
> +#endif
> +
>  /**
>   * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq
>   *
> @@ -212,6 +273,9 @@
>  	&sdp3430_smc91x_device,
>  	&sdp3430_kp_device,
>  	&sdp3430_lcd_device,
> +#ifdef CONFIG_RTC_DRV_TWL4030
> +	&sdp3430_twl4030rtc_device,
> +#endif
>  };
> 
>  static inline void __init sdp3430_init_smc91x(void)
>