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arm/mx2: define seperate gpio port descriptions for imx21 and imx27

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As the gpio ports have different addresses on imx21 and imx27 there are
two different port descriptions needed if not relying on the overloaded
cpp macro IO_ADDRESS.  So some cpp magic is added to minimize code
duplication.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
This commit is contained in:
Uwe Kleine-König 2010-02-05 17:40:28 +01:00
parent 3636a14532
commit 897359d596
1 changed files with 44 additions and 28 deletions
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72
arch/arm/mach-mx2/devices.c
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@ -432,36 +432,52 @@ DEFINE_IMX_SSI_DEVICE(0, 1, MX2x_SSI1_BASE_ADDR, MX2x_INT_SSI1);
DEFINE_IMX_SSI_DEVICE(1, 2, MX2x_SSI1_BASE_ADDR, MX2x_INT_SSI1);
/* GPIO port description */
static struct mxc_gpio_port imx_gpio_ports[] = {
{
.chip.label = "gpio-0",
.irq = MX2x_INT_GPIO,
.base = IO_ADDRESS(MX2x_GPIO_BASE_ADDR),
.virtual_irq_start = MXC_GPIO_IRQ_START,
}, {
.chip.label = "gpio-1",
.base = IO_ADDRESS(MX2x_GPIO_BASE_ADDR + 0x100),
.virtual_irq_start = MXC_GPIO_IRQ_START + 32,
}, {
.chip.label = "gpio-2",
.base = IO_ADDRESS(MX2x_GPIO_BASE_ADDR + 0x200),
.virtual_irq_start = MXC_GPIO_IRQ_START + 64,
}, {
.chip.label = "gpio-3",
.base = IO_ADDRESS(MX2x_GPIO_BASE_ADDR + 0x300),
.virtual_irq_start = MXC_GPIO_IRQ_START + 96,
}, {
.chip.label = "gpio-4",
.base = IO_ADDRESS(MX2x_GPIO_BASE_ADDR + 0x400),
.virtual_irq_start = MXC_GPIO_IRQ_START + 128,
}, {
.chip.label = "gpio-5",
.base = IO_ADDRESS(MX2x_GPIO_BASE_ADDR + 0x500),
.virtual_irq_start = MXC_GPIO_IRQ_START + 160,
#define DEFINE_MXC_GPIO_PORT_IRQ(SOC, n, _irq) \
{ \
.chip.label = "gpio-" #n, \
.irq = _irq, \
.base = SOC ## _IO_ADDRESS(MX2x_GPIO_BASE_ADDR + \
n * 0x100), \
.virtual_irq_start = MXC_GPIO_IRQ_START + n * 32, \
}
};
#define DEFINE_MXC_GPIO_PORT(SOC, n) \
{ \
.chip.label = "gpio-" #n, \
.base = SOC ## _IO_ADDRESS(MX2x_GPIO_BASE_ADDR + \
n * 0x100), \
.virtual_irq_start = MXC_GPIO_IRQ_START + n * 32, \
}
#define DEFINE_MXC_GPIO_PORTS(SOC, pfx) \
static struct mxc_gpio_port pfx ## _gpio_ports[] = { \
DEFINE_MXC_GPIO_PORT_IRQ(SOC, 0, SOC ## _INT_GPIO), \
DEFINE_MXC_GPIO_PORT(SOC, 1), \
DEFINE_MXC_GPIO_PORT(SOC, 2), \
DEFINE_MXC_GPIO_PORT(SOC, 3), \
DEFINE_MXC_GPIO_PORT(SOC, 4), \
DEFINE_MXC_GPIO_PORT(SOC, 5), \
}
#ifdef CONFIG_MACH_MX21
DEFINE_MXC_GPIO_PORTS(MX21, imx21);
#endif
#ifdef CONFIG_MACH_MX27
DEFINE_MXC_GPIO_PORTS(MX27, imx27);
#endif
int __init mxc_register_gpios(void)
{
return mxc_gpio_init(imx_gpio_ports, ARRAY_SIZE(imx_gpio_ports));
#ifdef CONFIG_MACH_MX21
if (cpu_is_mx21())
return mxc_gpio_init(imx21_gpio_ports, ARRAY_SIZE(imx21_gpio_ports));
else
#endif
#ifdef CONFIG_MACH_MX27
if (cpu_is_mx27())
return mxc_gpio_init(imx27_gpio_ports, ARRAY_SIZE(imx27_gpio_ports));
else
#endif
return 0;
}