From 7548790462d7cea9d92688b488026569187b1044 Mon Sep 17 00:00:00 2001
From: Robert Nelson <robertcnelson@gmail.com>
Date: Mon, 10 Oct 2011 11:16:12 -0500
Subject: [PATCH 03/13] expansion: add zippy

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
---
 arch/arm/mach-omap2/board-omap3beagle.c |   51 +++++++++++++++++++++++++++++++
 1 files changed, 51 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index 9f5706b..6ffafd6 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -159,6 +159,48 @@ static void __init omap3_beagle_init_rev(void)
 
 char expansionboard_name[16];
 
+#if defined(CONFIG_ENC28J60) || defined(CONFIG_ENC28J60_MODULE)
+
+#include <plat/mcspi.h>
+#include <linux/spi/spi.h>
+
+#define OMAP3BEAGLE_GPIO_ENC28J60_IRQ 157
+
+static struct omap2_mcspi_device_config enc28j60_spi_chip_info = {
+	.turbo_mode	= 0,
+	.single_channel	= 1,	/* 0: slave, 1: master */
+};
+
+static struct spi_board_info omap3beagle_zippy_spi_board_info[] __initdata = {
+	{
+		.modalias		= "enc28j60",
+		.bus_num		= 4,
+		.chip_select		= 0,
+		.max_speed_hz		= 20000000,
+		.controller_data	= &enc28j60_spi_chip_info,
+	},
+};
+
+static void __init omap3beagle_enc28j60_init(void)
+{
+	if ((gpio_request(OMAP3BEAGLE_GPIO_ENC28J60_IRQ, "ENC28J60_IRQ") == 0) &&
+	    (gpio_direction_input(OMAP3BEAGLE_GPIO_ENC28J60_IRQ) == 0)) {
+		gpio_export(OMAP3BEAGLE_GPIO_ENC28J60_IRQ, 0);
+		omap3beagle_zippy_spi_board_info[0].irq	= OMAP_GPIO_IRQ(OMAP3BEAGLE_GPIO_ENC28J60_IRQ);
+		irq_set_irq_type(omap3beagle_zippy_spi_board_info[0].irq, IRQ_TYPE_EDGE_FALLING);
+	} else {
+		printk(KERN_ERR "could not obtain gpio for ENC28J60_IRQ\n");
+		return;
+	}
+
+	spi_register_board_info(omap3beagle_zippy_spi_board_info,
+			ARRAY_SIZE(omap3beagle_zippy_spi_board_info));
+}
+
+#else
+static inline void __init omap3beagle_enc28j60_init(void) { return; }
+#endif
+
 static struct mtd_partition omap3beagle_nand_partitions[] = {
 	/* All the partition sizes are listed in terms of NAND block size */
 	{
@@ -567,6 +609,15 @@ static void __init omap3_beagle_init(void)
 	/* REVISIT leave DVI powered down until it's needed ... */
 	gpio_request_one(170, GPIOF_OUT_INIT_HIGH, "DVI_nPD");
 
+	if(!strcmp(expansionboard_name, "zippy"))
+	{
+		printk(KERN_INFO "Beagle expansionboard: initializing enc28j60\n");
+		omap3beagle_enc28j60_init();
+		printk(KERN_INFO "Beagle expansionboard: assigning GPIO 141 and 162 to MMC1\n");
+		mmc[1].gpio_wp = 141;
+		mmc[1].gpio_cd = 162;
+	}
+
 	usb_musb_init(NULL);
 	usbhs_init(&usbhs_bdata);
 	omap_nand_flash_init(NAND_BUSWIDTH_16, omap3beagle_nand_partitions,
-- 
1.7.7.4

