File-copy from v4.4.100
This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Please refer to that tree for all history prior to this point.
Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/arch/arm/mach-omap2/gpmc-smsc911x.c b/arch/arm/mach-omap2/gpmc-smsc911x.c
new file mode 100644
index 0000000..2757504
--- /dev/null
+++ b/arch/arm/mach-omap2/gpmc-smsc911x.c
@@ -0,0 +1,100 @@
+/*
+ * linux/arch/arm/mach-omap2/gpmc-smsc911x.c
+ *
+ * Copyright (C) 2009 Li-Pro.Net
+ * Stephan Linz <linz@li-pro.net>
+ *
+ * Modified from linux/arch/arm/mach-omap2/gpmc-smc91x.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#define pr_fmt(fmt) "%s: " fmt, __func__
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/smsc911x.h>
+
+#include "gpmc.h"
+#include "gpmc-smsc911x.h"
+
+static struct resource gpmc_smsc911x_resources[] = {
+ [0] = {
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
+ },
+};
+
+static struct smsc911x_platform_config gpmc_smsc911x_config = {
+ .phy_interface = PHY_INTERFACE_MODE_MII,
+ .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
+ .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
+};
+
+/*
+ * Initialize smsc911x device connected to the GPMC. Note that we
+ * assume that pin multiplexing is done in the board-*.c file,
+ * or in the bootloader.
+ */
+void __init gpmc_smsc911x_init(struct omap_smsc911x_platform_data *gpmc_cfg)
+{
+ struct platform_device *pdev;
+ unsigned long cs_mem_base;
+ int ret;
+
+ if (gpmc_cs_request(gpmc_cfg->cs, SZ_16M, &cs_mem_base) < 0) {
+ pr_err("Failed to request GPMC mem region\n");
+ return;
+ }
+
+ gpmc_smsc911x_resources[0].start = cs_mem_base + 0x0;
+ gpmc_smsc911x_resources[0].end = cs_mem_base + 0xff;
+
+ if (gpio_request_one(gpmc_cfg->gpio_irq, GPIOF_IN, "smsc911x irq")) {
+ pr_err("Failed to request IRQ GPIO%d\n", gpmc_cfg->gpio_irq);
+ goto free1;
+ }
+
+ gpmc_smsc911x_resources[1].start = gpio_to_irq(gpmc_cfg->gpio_irq);
+
+ if (gpio_is_valid(gpmc_cfg->gpio_reset)) {
+ ret = gpio_request_one(gpmc_cfg->gpio_reset,
+ GPIOF_OUT_INIT_HIGH, "smsc911x reset");
+ if (ret) {
+ pr_err("Failed to request reset GPIO%d\n",
+ gpmc_cfg->gpio_reset);
+ goto free2;
+ }
+
+ gpio_set_value(gpmc_cfg->gpio_reset, 0);
+ msleep(100);
+ gpio_set_value(gpmc_cfg->gpio_reset, 1);
+ }
+
+ gpmc_smsc911x_config.flags = gpmc_cfg->flags ? : SMSC911X_USE_16BIT;
+
+ pdev = platform_device_register_resndata(NULL, "smsc911x", gpmc_cfg->id,
+ gpmc_smsc911x_resources, ARRAY_SIZE(gpmc_smsc911x_resources),
+ &gpmc_smsc911x_config, sizeof(gpmc_smsc911x_config));
+ if (IS_ERR(pdev)) {
+ pr_err("Unable to register platform device\n");
+ gpio_free(gpmc_cfg->gpio_reset);
+ goto free2;
+ }
+
+ return;
+
+free2:
+ gpio_free(gpmc_cfg->gpio_irq);
+free1:
+ gpmc_cs_free(gpmc_cfg->cs);
+
+ pr_err("Could not initialize smsc911x device\n");
+}