mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 13:43:55 +08:00
610e1756ea
Scripted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
162 lines
3.3 KiB
C
162 lines
3.3 KiB
C
/*
|
|
* s6105 platform devices
|
|
*
|
|
* Copyright (c) 2009 emlix GmbH
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/init.h>
|
|
#include <linux/irq.h>
|
|
#include <linux/phy.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/serial.h>
|
|
#include <linux/serial_8250.h>
|
|
|
|
#include <variant/hardware.h>
|
|
#include <variant/dmac.h>
|
|
|
|
#include <platform/gpio.h>
|
|
|
|
#define GPIO3_INTNUM 3
|
|
#define UART_INTNUM 4
|
|
#define GMAC_INTNUM 5
|
|
|
|
static const signed char gpio3_irq_mappings[] = {
|
|
S6_INTC_GPIO(3),
|
|
-1
|
|
};
|
|
|
|
static const signed char uart_irq_mappings[] = {
|
|
S6_INTC_UART(0),
|
|
S6_INTC_UART(1),
|
|
-1,
|
|
};
|
|
|
|
static const signed char gmac_irq_mappings[] = {
|
|
S6_INTC_GMAC_STAT,
|
|
S6_INTC_GMAC_ERR,
|
|
S6_INTC_DMA_HOSTTERMCNT(0),
|
|
S6_INTC_DMA_HOSTTERMCNT(1),
|
|
-1
|
|
};
|
|
|
|
const signed char *platform_irq_mappings[NR_IRQS] = {
|
|
[GPIO3_INTNUM] = gpio3_irq_mappings,
|
|
[UART_INTNUM] = uart_irq_mappings,
|
|
[GMAC_INTNUM] = gmac_irq_mappings,
|
|
};
|
|
|
|
static struct plat_serial8250_port serial_platform_data[] = {
|
|
{
|
|
.membase = (void *)S6_REG_UART + 0x0000,
|
|
.mapbase = S6_REG_UART + 0x0000,
|
|
.irq = UART_INTNUM,
|
|
.uartclk = S6_SCLK,
|
|
.regshift = 2,
|
|
.iotype = SERIAL_IO_MEM,
|
|
.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST,
|
|
},
|
|
{
|
|
.membase = (void *)S6_REG_UART + 0x1000,
|
|
.mapbase = S6_REG_UART + 0x1000,
|
|
.irq = UART_INTNUM,
|
|
.uartclk = S6_SCLK,
|
|
.regshift = 2,
|
|
.iotype = SERIAL_IO_MEM,
|
|
.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST,
|
|
},
|
|
{ },
|
|
};
|
|
|
|
static struct resource s6_gmac_resource[] = {
|
|
{
|
|
.name = "mem",
|
|
.start = (resource_size_t)S6_REG_GMAC,
|
|
.end = (resource_size_t)S6_REG_GMAC + 0x10000 - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.name = "dma",
|
|
.start = (resource_size_t)
|
|
DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACTX),
|
|
.end = (resource_size_t)
|
|
DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACTX) + 0x100 - 1,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
{
|
|
.name = "dma",
|
|
.start = (resource_size_t)
|
|
DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACRX),
|
|
.end = (resource_size_t)
|
|
DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACRX) + 0x100 - 1,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
{
|
|
.name = "io",
|
|
.start = (resource_size_t)S6_MEM_GMAC,
|
|
.end = (resource_size_t)S6_MEM_GMAC + 0x2000000 - 1,
|
|
.flags = IORESOURCE_IO,
|
|
},
|
|
{
|
|
.name = "irq",
|
|
.start = (resource_size_t)GMAC_INTNUM,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "irq",
|
|
.start = (resource_size_t)PHY_POLL,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static int __init prepare_phy_irq(int pin)
|
|
{
|
|
int irq;
|
|
if (gpio_request(pin, "s6gmac_phy") < 0)
|
|
goto fail;
|
|
if (gpio_direction_input(pin) < 0)
|
|
goto free;
|
|
irq = gpio_to_irq(pin);
|
|
if (irq < 0)
|
|
goto free;
|
|
if (irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW) < 0)
|
|
goto free;
|
|
return irq;
|
|
free:
|
|
gpio_free(pin);
|
|
fail:
|
|
return PHY_POLL;
|
|
}
|
|
|
|
static struct platform_device platform_devices[] = {
|
|
{
|
|
.name = "serial8250",
|
|
.id = PLAT8250_DEV_PLATFORM,
|
|
.dev = {
|
|
.platform_data = serial_platform_data,
|
|
},
|
|
},
|
|
{
|
|
.name = "s6gmac",
|
|
.id = 0,
|
|
.resource = s6_gmac_resource,
|
|
.num_resources = ARRAY_SIZE(s6_gmac_resource),
|
|
},
|
|
{
|
|
I2C_BOARD_INFO("m41t62", S6I2C_ADDR_M41T62),
|
|
},
|
|
};
|
|
|
|
static int __init device_init(void)
|
|
{
|
|
int i;
|
|
|
|
s6_gmac_resource[5].start = prepare_phy_irq(GPIO_PHY_IRQ);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(platform_devices); i++)
|
|
platform_device_register(&platform_devices[i]);
|
|
return 0;
|
|
}
|
|
arch_initcall_sync(device_init);
|