Charulatha V <charu@xxxxxx> writes:
> This is in prepartion for implementing GPIO as a platform device.
> gpio bank's base addresses are moved from gpio.c to plat/gpio.h.
>
> This patch also modifies omap_gpio_init() to make use of
> omap_gpio_chip_init() and omap_gpio_mod_init(). omap_gpio_mod_init() does
> the module init by clearing the status register and initializing the
> GPIO control register. omap_gpio_chip_init() initializes the chip request,
> free, get, set and other function pointers and sets the gpio irq handler.
>
> Signed-off-by: Charulatha V <charu@xxxxxx>
> Signed-off-by: Basak, Partha <p-basak2@xxxxxx>
[...]
> +static void omap_gpio_mod_init(struct gpio_bank *bank, int id)
> +{
> + if (cpu_class_is_omap2()) {
> + if (cpu_is_omap44xx()) {
> + __raw_writel(0xffffffff, bank->base +
> + OMAP4_GPIO_IRQSTATUSCLR0);
> + __raw_writel(0x00000000, bank->base +
> + OMAP4_GPIO_DEBOUNCENABLE);
> + /* Initialize interface clk ungated, module enabled */
> + __raw_writel(0, bank->base + OMAP4_GPIO_CTRL);
> + } else if (cpu_is_omap34xx()) {
> + __raw_writel(0x00000000, bank->base +
> + OMAP24XX_GPIO_IRQENABLE1);
> + __raw_writel(0xffffffff, bank->base +
> + OMAP24XX_GPIO_IRQSTATUS1);
> + __raw_writel(0x00000000, bank->base +
> + OMAP24XX_GPIO_DEBOUNCE_EN);
> +
> + /* Initialize interface clk ungated, module enabled */
> + __raw_writel(0, bank->base + OMAP24XX_GPIO_CTRL);
> + /* Enable autoidle for the OCP interface */
> + omap_writel(1 << 0, 0x48306814);
This autoidle stuff should be removed in this series as setting this is
handled by the hwmod layer.
> + } else if (cpu_is_omap24xx()) {
> + static const u32 non_wakeup_gpios[] = {
> + 0xe203ffc0, 0x08700040
> + };
> + if (id < ARRAY_SIZE(non_wakeup_gpios))
> + bank->non_wakeup_gpios = non_wakeup_gpios[id];
> +
> + /* Enable autoidle for the OCP interface */
> + omap_writel(1 << 0, 0x48019010);
ditto
> + }
Kevin
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