mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 20:53:53 +08:00
e5ff4440cf
Remove cpu_is_* checks from gpio_show_revision() by passing in the revision address offset from platform data. SoCs with no revision register (15xx, 7xx, and all MPUIOs) use -1 (actually, USHRT_MAX) to signify no register. While here, all GPIO banks are assumed to be the same revision, so fix show_revision() to only show the revision for the first bank it finds. This removes duplicate GPIO revision prints during boot. Thanks to Charulatha V <charu@ti.com> for finding/fixing a few -1s that were missed in the original patch. Signed-off-by: Kevin Hilman <khilman@ti.com>
229 lines
5.9 KiB
C
229 lines
5.9 KiB
C
/*
|
|
* OMAP16xx specific gpio init
|
|
*
|
|
* Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
|
|
*
|
|
* Author:
|
|
* Charulatha V <charu@ti.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation version 2.
|
|
*
|
|
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
|
|
* kind, whether express or implied; without even the implied warranty
|
|
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#include <linux/gpio.h>
|
|
|
|
#define OMAP1610_GPIO1_BASE 0xfffbe400
|
|
#define OMAP1610_GPIO2_BASE 0xfffbec00
|
|
#define OMAP1610_GPIO3_BASE 0xfffbb400
|
|
#define OMAP1610_GPIO4_BASE 0xfffbbc00
|
|
#define OMAP1_MPUIO_VBASE OMAP1_MPUIO_BASE
|
|
|
|
/* mpu gpio */
|
|
static struct __initdata resource omap16xx_mpu_gpio_resources[] = {
|
|
{
|
|
.start = OMAP1_MPUIO_VBASE,
|
|
.end = OMAP1_MPUIO_VBASE + SZ_2K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = INT_MPUIO,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct omap_gpio_reg_offs omap16xx_mpuio_regs = {
|
|
.revision = USHRT_MAX,
|
|
.direction = OMAP_MPUIO_IO_CNTL,
|
|
.datain = OMAP_MPUIO_INPUT_LATCH,
|
|
.dataout = OMAP_MPUIO_OUTPUT,
|
|
.irqstatus = OMAP_MPUIO_GPIO_INT,
|
|
.irqenable = OMAP_MPUIO_GPIO_MASKIT,
|
|
.irqenable_inv = true,
|
|
};
|
|
|
|
static struct __initdata omap_gpio_platform_data omap16xx_mpu_gpio_config = {
|
|
.virtual_irq_start = IH_MPUIO_BASE,
|
|
.bank_type = METHOD_MPUIO,
|
|
.bank_width = 16,
|
|
.bank_stride = 1,
|
|
.regs = &omap16xx_mpuio_regs,
|
|
};
|
|
|
|
static struct __initdata platform_device omap16xx_mpu_gpio = {
|
|
.name = "omap_gpio",
|
|
.id = 0,
|
|
.dev = {
|
|
.platform_data = &omap16xx_mpu_gpio_config,
|
|
},
|
|
.num_resources = ARRAY_SIZE(omap16xx_mpu_gpio_resources),
|
|
.resource = omap16xx_mpu_gpio_resources,
|
|
};
|
|
|
|
/* gpio1 */
|
|
static struct __initdata resource omap16xx_gpio1_resources[] = {
|
|
{
|
|
.start = OMAP1610_GPIO1_BASE,
|
|
.end = OMAP1610_GPIO1_BASE + SZ_2K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = INT_GPIO_BANK1,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct omap_gpio_reg_offs omap16xx_gpio_regs = {
|
|
.revision = OMAP1610_GPIO_REVISION,
|
|
.direction = OMAP1610_GPIO_DIRECTION,
|
|
.set_dataout = OMAP1610_GPIO_SET_DATAOUT,
|
|
.clr_dataout = OMAP1610_GPIO_CLEAR_DATAOUT,
|
|
.datain = OMAP1610_GPIO_DATAIN,
|
|
.dataout = OMAP1610_GPIO_DATAOUT,
|
|
.irqstatus = OMAP1610_GPIO_IRQSTATUS1,
|
|
.irqenable = OMAP1610_GPIO_IRQENABLE1,
|
|
.set_irqenable = OMAP1610_GPIO_SET_IRQENABLE1,
|
|
.clr_irqenable = OMAP1610_GPIO_CLEAR_IRQENABLE1,
|
|
};
|
|
|
|
static struct __initdata omap_gpio_platform_data omap16xx_gpio1_config = {
|
|
.virtual_irq_start = IH_GPIO_BASE,
|
|
.bank_type = METHOD_GPIO_1610,
|
|
.bank_width = 16,
|
|
.regs = &omap16xx_gpio_regs,
|
|
};
|
|
|
|
static struct __initdata platform_device omap16xx_gpio1 = {
|
|
.name = "omap_gpio",
|
|
.id = 1,
|
|
.dev = {
|
|
.platform_data = &omap16xx_gpio1_config,
|
|
},
|
|
.num_resources = ARRAY_SIZE(omap16xx_gpio1_resources),
|
|
.resource = omap16xx_gpio1_resources,
|
|
};
|
|
|
|
/* gpio2 */
|
|
static struct __initdata resource omap16xx_gpio2_resources[] = {
|
|
{
|
|
.start = OMAP1610_GPIO2_BASE,
|
|
.end = OMAP1610_GPIO2_BASE + SZ_2K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = INT_1610_GPIO_BANK2,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct __initdata omap_gpio_platform_data omap16xx_gpio2_config = {
|
|
.virtual_irq_start = IH_GPIO_BASE + 16,
|
|
.bank_type = METHOD_GPIO_1610,
|
|
.bank_width = 16,
|
|
.regs = &omap16xx_gpio_regs,
|
|
};
|
|
|
|
static struct __initdata platform_device omap16xx_gpio2 = {
|
|
.name = "omap_gpio",
|
|
.id = 2,
|
|
.dev = {
|
|
.platform_data = &omap16xx_gpio2_config,
|
|
},
|
|
.num_resources = ARRAY_SIZE(omap16xx_gpio2_resources),
|
|
.resource = omap16xx_gpio2_resources,
|
|
};
|
|
|
|
/* gpio3 */
|
|
static struct __initdata resource omap16xx_gpio3_resources[] = {
|
|
{
|
|
.start = OMAP1610_GPIO3_BASE,
|
|
.end = OMAP1610_GPIO3_BASE + SZ_2K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = INT_1610_GPIO_BANK3,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct __initdata omap_gpio_platform_data omap16xx_gpio3_config = {
|
|
.virtual_irq_start = IH_GPIO_BASE + 32,
|
|
.bank_type = METHOD_GPIO_1610,
|
|
.bank_width = 16,
|
|
.regs = &omap16xx_gpio_regs,
|
|
};
|
|
|
|
static struct __initdata platform_device omap16xx_gpio3 = {
|
|
.name = "omap_gpio",
|
|
.id = 3,
|
|
.dev = {
|
|
.platform_data = &omap16xx_gpio3_config,
|
|
},
|
|
.num_resources = ARRAY_SIZE(omap16xx_gpio3_resources),
|
|
.resource = omap16xx_gpio3_resources,
|
|
};
|
|
|
|
/* gpio4 */
|
|
static struct __initdata resource omap16xx_gpio4_resources[] = {
|
|
{
|
|
.start = OMAP1610_GPIO4_BASE,
|
|
.end = OMAP1610_GPIO4_BASE + SZ_2K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = INT_1610_GPIO_BANK4,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct __initdata omap_gpio_platform_data omap16xx_gpio4_config = {
|
|
.virtual_irq_start = IH_GPIO_BASE + 48,
|
|
.bank_type = METHOD_GPIO_1610,
|
|
.bank_width = 16,
|
|
.regs = &omap16xx_gpio_regs,
|
|
};
|
|
|
|
static struct __initdata platform_device omap16xx_gpio4 = {
|
|
.name = "omap_gpio",
|
|
.id = 4,
|
|
.dev = {
|
|
.platform_data = &omap16xx_gpio4_config,
|
|
},
|
|
.num_resources = ARRAY_SIZE(omap16xx_gpio4_resources),
|
|
.resource = omap16xx_gpio4_resources,
|
|
};
|
|
|
|
static struct __initdata platform_device * omap16xx_gpio_dev[] = {
|
|
&omap16xx_mpu_gpio,
|
|
&omap16xx_gpio1,
|
|
&omap16xx_gpio2,
|
|
&omap16xx_gpio3,
|
|
&omap16xx_gpio4,
|
|
};
|
|
|
|
/*
|
|
* omap16xx_gpio_init needs to be done before
|
|
* machine_init functions access gpio APIs.
|
|
* Hence omap16xx_gpio_init is a postcore_initcall.
|
|
*/
|
|
static int __init omap16xx_gpio_init(void)
|
|
{
|
|
int i;
|
|
|
|
if (!cpu_is_omap16xx())
|
|
return -EINVAL;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(omap16xx_gpio_dev); i++)
|
|
platform_device_register(omap16xx_gpio_dev[i]);
|
|
|
|
gpio_bank_count = ARRAY_SIZE(omap16xx_gpio_dev);
|
|
|
|
return 0;
|
|
}
|
|
postcore_initcall(omap16xx_gpio_init);
|