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mx25: pdk: add platform code for FEC support

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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Baruch Siach 2009-12-21 13:44:32 +02:00 committed by Sascha Hauer
parent a759544ff9
commit e71fbaf766
1 changed files with 44 additions and 2 deletions
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46
arch/arm/mach-mx25/mx25pdk.c
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@ -18,10 +18,11 @@
#include <linux/types.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/clk.h>
#include <linux/irq.h>
#include <linux/gpio.h>
#include <linux/smsc911x.h>
#include <linux/fec.h>
#include <linux/platform_device.h>
#include <mach/hardware.h>
@ -35,16 +36,57 @@
#include <mach/mx25.h>
#include <mach/mxc_nand.h>
#include "devices.h"
#include <mach/iomux-v3.h>
#include <mach/iomux.h>
static struct imxuart_platform_data uart_pdata = {
.flags = IMXUART_HAVE_RTSCTS,
};
static struct pad_desc mx25pdk_pads[] = {
MX25_PAD_FEC_MDC__FEC_MDC,
MX25_PAD_FEC_MDIO__FEC_MDIO,
MX25_PAD_FEC_TDATA0__FEC_TDATA0,
MX25_PAD_FEC_TDATA1__FEC_TDATA1,
MX25_PAD_FEC_TX_EN__FEC_TX_EN,
MX25_PAD_FEC_RDATA0__FEC_RDATA0,
MX25_PAD_FEC_RDATA1__FEC_RDATA1,
MX25_PAD_FEC_RX_DV__FEC_RX_DV,
MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
MX25_PAD_A17__GPIO_2_3, /* FEC_EN, GPIO 35 */
MX25_PAD_D12__GPIO_4_8, /* FEC_RESET_B, GPIO 104 */
};
static struct fec_platform_data mx25_fec_pdata = {
.phy = PHY_INTERFACE_MODE_RMII,
};
#define FEC_ENABLE_GPIO 35
#define FEC_RESET_B_GPIO 104
static void __init mx25pdk_fec_reset(void)
{
gpio_request(FEC_ENABLE_GPIO, "FEC PHY enable");
gpio_request(FEC_RESET_B_GPIO, "FEC PHY reset");
gpio_direction_output(FEC_ENABLE_GPIO, 0); /* drop PHY power */
gpio_direction_output(FEC_RESET_B_GPIO, 0); /* assert reset */
udelay(2);
/* turn on PHY power and lift reset */
gpio_set_value(FEC_ENABLE_GPIO, 1);
gpio_set_value(FEC_RESET_B_GPIO, 1);
}
static void __init mx25pdk_init(void)
{
mxc_iomux_v3_setup_multiple_pads(mx25pdk_pads,
ARRAY_SIZE(mx25pdk_pads));
mxc_register_device(&mxc_uart_device0, &uart_pdata);
mxc_register_device(&mxc_usbh2, NULL);
mx25pdk_fec_reset();
mxc_register_device(&mx25_fec_device, &mx25_fec_pdata);
}
static void __init mx25pdk_timer_init(void)