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authorBaruch Siach <baruch@tkos.co.il>2009-12-21 13:44:32 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2010-01-04 11:47:44 +0100
commite71fbaf7660cefb49459e66a12bbb928a86958c9 (patch)
treee593da54ebe531883e96f65d2ac341637f0aade8 /arch
parenta759544ff95c14dac93759e02a84e233da0dc25a (diff)
downloadop-kernel-dev-e71fbaf7660cefb49459e66a12bbb928a86958c9.zip
op-kernel-dev-e71fbaf7660cefb49459e66a12bbb928a86958c9.tar.gz
mx25: pdk: add platform code for FEC support
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-mx25/mx25pdk.c46
1 files changed, 44 insertions, 2 deletions
diff --git a/arch/arm/mach-mx25/mx25pdk.c b/arch/arm/mach-mx25/mx25pdk.c
index d23ae57..921bc99 100644
--- a/arch/arm/mach-mx25/mx25pdk.c
+++ b/arch/arm/mach-mx25/mx25pdk.c
@@ -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)
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