d0d665a896
The only bank->type (method) used in the OMAP GPIO driver is MPUIO type as they need to be handled separately. Identify the same using a flag and remove all METHOD_* macros. mpuio_init() function is defined under #ifdefs. It is required only in case of MPUIO bank type and only when PM operations are supported by it. This is applicable only in case of OMAP16xx SoC's MPUIO GPIO bank type. For all the other cases it is a dummy function. Hence clean up the same and remove all the OMAP SoC specific #ifdefs. Signed-off-by: Charulatha V <charu@ti.com> Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
260 lines
6.6 KiB
C
260 lines
6.6 KiB
C
/*
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* OMAP16xx specific gpio init
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*
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* Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
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*
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* Author:
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* Charulatha V <charu@ti.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/gpio.h>
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#define OMAP1610_GPIO1_BASE 0xfffbe400
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#define OMAP1610_GPIO2_BASE 0xfffbec00
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#define OMAP1610_GPIO3_BASE 0xfffbb400
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#define OMAP1610_GPIO4_BASE 0xfffbbc00
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#define OMAP1_MPUIO_VBASE OMAP1_MPUIO_BASE
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/* smart idle, enable wakeup */
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#define SYSCONFIG_WORD 0x14
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/* mpu gpio */
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static struct __initdata resource omap16xx_mpu_gpio_resources[] = {
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{
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.start = OMAP1_MPUIO_VBASE,
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.end = OMAP1_MPUIO_VBASE + SZ_2K - 1,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = INT_MPUIO,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct omap_gpio_reg_offs omap16xx_mpuio_regs = {
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.revision = USHRT_MAX,
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.direction = OMAP_MPUIO_IO_CNTL,
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.datain = OMAP_MPUIO_INPUT_LATCH,
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.dataout = OMAP_MPUIO_OUTPUT,
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.irqstatus = OMAP_MPUIO_GPIO_INT,
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.irqenable = OMAP_MPUIO_GPIO_MASKIT,
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.irqenable_inv = true,
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.irqctrl = OMAP_MPUIO_GPIO_INT_EDGE,
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};
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static struct __initdata omap_gpio_platform_data omap16xx_mpu_gpio_config = {
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.virtual_irq_start = IH_MPUIO_BASE,
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.is_mpuio = true,
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.bank_width = 16,
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.bank_stride = 1,
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.regs = &omap16xx_mpuio_regs,
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};
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static struct platform_device omap16xx_mpu_gpio = {
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.name = "omap_gpio",
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.id = 0,
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.dev = {
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.platform_data = &omap16xx_mpu_gpio_config,
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},
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.num_resources = ARRAY_SIZE(omap16xx_mpu_gpio_resources),
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.resource = omap16xx_mpu_gpio_resources,
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};
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/* gpio1 */
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static struct __initdata resource omap16xx_gpio1_resources[] = {
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{
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.start = OMAP1610_GPIO1_BASE,
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.end = OMAP1610_GPIO1_BASE + SZ_2K - 1,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = INT_GPIO_BANK1,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct omap_gpio_reg_offs omap16xx_gpio_regs = {
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.revision = OMAP1610_GPIO_REVISION,
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.direction = OMAP1610_GPIO_DIRECTION,
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.set_dataout = OMAP1610_GPIO_SET_DATAOUT,
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.clr_dataout = OMAP1610_GPIO_CLEAR_DATAOUT,
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.datain = OMAP1610_GPIO_DATAIN,
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.dataout = OMAP1610_GPIO_DATAOUT,
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.irqstatus = OMAP1610_GPIO_IRQSTATUS1,
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.irqenable = OMAP1610_GPIO_IRQENABLE1,
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.set_irqenable = OMAP1610_GPIO_SET_IRQENABLE1,
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.clr_irqenable = OMAP1610_GPIO_CLEAR_IRQENABLE1,
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.wkup_en = OMAP1610_GPIO_WAKEUPENABLE,
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.edgectrl1 = OMAP1610_GPIO_EDGE_CTRL1,
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.edgectrl2 = OMAP1610_GPIO_EDGE_CTRL2,
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};
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static struct __initdata omap_gpio_platform_data omap16xx_gpio1_config = {
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.virtual_irq_start = IH_GPIO_BASE,
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.bank_width = 16,
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.regs = &omap16xx_gpio_regs,
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};
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static struct platform_device omap16xx_gpio1 = {
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.name = "omap_gpio",
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.id = 1,
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.dev = {
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.platform_data = &omap16xx_gpio1_config,
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},
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.num_resources = ARRAY_SIZE(omap16xx_gpio1_resources),
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.resource = omap16xx_gpio1_resources,
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};
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/* gpio2 */
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static struct __initdata resource omap16xx_gpio2_resources[] = {
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{
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.start = OMAP1610_GPIO2_BASE,
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.end = OMAP1610_GPIO2_BASE + SZ_2K - 1,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = INT_1610_GPIO_BANK2,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct __initdata omap_gpio_platform_data omap16xx_gpio2_config = {
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.virtual_irq_start = IH_GPIO_BASE + 16,
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.bank_width = 16,
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.regs = &omap16xx_gpio_regs,
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};
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static struct platform_device omap16xx_gpio2 = {
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.name = "omap_gpio",
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.id = 2,
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.dev = {
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.platform_data = &omap16xx_gpio2_config,
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},
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.num_resources = ARRAY_SIZE(omap16xx_gpio2_resources),
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.resource = omap16xx_gpio2_resources,
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};
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/* gpio3 */
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static struct __initdata resource omap16xx_gpio3_resources[] = {
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{
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.start = OMAP1610_GPIO3_BASE,
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.end = OMAP1610_GPIO3_BASE + SZ_2K - 1,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = INT_1610_GPIO_BANK3,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct __initdata omap_gpio_platform_data omap16xx_gpio3_config = {
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.virtual_irq_start = IH_GPIO_BASE + 32,
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.bank_width = 16,
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.regs = &omap16xx_gpio_regs,
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};
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static struct platform_device omap16xx_gpio3 = {
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.name = "omap_gpio",
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.id = 3,
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.dev = {
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.platform_data = &omap16xx_gpio3_config,
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},
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.num_resources = ARRAY_SIZE(omap16xx_gpio3_resources),
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.resource = omap16xx_gpio3_resources,
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};
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/* gpio4 */
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static struct __initdata resource omap16xx_gpio4_resources[] = {
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{
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.start = OMAP1610_GPIO4_BASE,
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.end = OMAP1610_GPIO4_BASE + SZ_2K - 1,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = INT_1610_GPIO_BANK4,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct __initdata omap_gpio_platform_data omap16xx_gpio4_config = {
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.virtual_irq_start = IH_GPIO_BASE + 48,
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.bank_width = 16,
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.regs = &omap16xx_gpio_regs,
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};
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static struct platform_device omap16xx_gpio4 = {
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.name = "omap_gpio",
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.id = 4,
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.dev = {
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.platform_data = &omap16xx_gpio4_config,
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},
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.num_resources = ARRAY_SIZE(omap16xx_gpio4_resources),
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.resource = omap16xx_gpio4_resources,
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};
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static struct __initdata platform_device * omap16xx_gpio_dev[] = {
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&omap16xx_mpu_gpio,
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&omap16xx_gpio1,
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&omap16xx_gpio2,
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&omap16xx_gpio3,
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&omap16xx_gpio4,
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};
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/*
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* omap16xx_gpio_init needs to be done before
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* machine_init functions access gpio APIs.
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* Hence omap16xx_gpio_init is a postcore_initcall.
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*/
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static int __init omap16xx_gpio_init(void)
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{
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int i;
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void __iomem *base;
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struct resource *res;
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struct platform_device *pdev;
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struct omap_gpio_platform_data *pdata;
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if (!cpu_is_omap16xx())
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return -EINVAL;
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for (i = 0; i < ARRAY_SIZE(omap16xx_gpio_dev); i++) {
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pdev = omap16xx_gpio_dev[i];
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pdata = pdev->dev.platform_data;
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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if (unlikely(!res)) {
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dev_err(&pdev->dev, "Invalid mem resource.\n");
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return -ENODEV;
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}
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base = ioremap(res->start, resource_size(res));
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if (unlikely(!base)) {
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dev_err(&pdev->dev, "ioremap failed.\n");
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return -ENOMEM;
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}
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__raw_writel(SYSCONFIG_WORD, base + OMAP1610_GPIO_SYSCONFIG);
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iounmap(base);
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/*
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* Enable system clock for GPIO module.
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* The CAM_CLK_CTRL *is* really the right place.
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*/
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omap_writel(omap_readl(ULPD_CAM_CLK_CTRL) | 0x04,
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ULPD_CAM_CLK_CTRL);
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platform_device_register(omap16xx_gpio_dev[i]);
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}
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return 0;
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}
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postcore_initcall(omap16xx_gpio_init);
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