omap3: cm-t35: move the SMC911x code

Extract the SMC911x initialization code to a common location where it
can be reused by other compulab omap3 based boards.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Reviewed-by: Tom Rini <trini@ti.com>

3 files changed, 105 insertions, 0 deletions

diff --git a/board/compulab/common/Makefile b/board/compulab/common/Makefile
index 78237d1..dbf0009 100644
--- a/board/compulab/common/Makefile
+++ b/board/compulab/common/Makefile
@@ -10,3 +10,4 @@ obj-y				+= common.o
 obj-$(CONFIG_SYS_I2C)		+= eeprom.o
 obj-$(CONFIG_LCD)		+= omap3_display.o
 obj-$(CONFIG_SPLASH_SCREEN)	+= splash.o
+obj-$(CONFIG_SMC911X)		+= omap3_smc911x.o
diff --git a/board/compulab/common/common.h b/board/compulab/common/common.h
index 7a106d6..68ffb11 100644
--- a/board/compulab/common/common.h
+++ b/board/compulab/common/common.h
@@ -33,4 +33,15 @@ static inline int cl_splash_screen_prepare(int nand_offset)
 }
 #endif /* CONFIG_SPLASH_SCREEN */
 
+#ifdef CONFIG_SMC911X
+int cl_omap3_smc911x_init(int id, int cs, u32 base_addr,
+			  int (*reset)(int), int rst_gpio);
+#else /* !CONFIG_SMC911X */
+static inline int cl_omap3_smc911x_init(int id, int cs, u32 base_addr,
+					int (*reset)(int), int rst_gpio)
+{
+	return -ENOSYS;
+}
+#endif /* CONFIG_SMC911X */
+
 #endif /* _CL_COMMON_ */
diff --git a/board/compulab/common/omap3_smc911x.c b/board/compulab/common/omap3_smc911x.c
new file mode 100644
index 0000000..4561661
--- /dev/null
+++ b/board/compulab/common/omap3_smc911x.c
@@ -0,0 +1,93 @@
+/*
+ * (C) Copyright 2014 CompuLab, Ltd. <www.compulab.co.il>
+ *
+ * Authors: Igor Grinberg <grinberg@compulab.co.il>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <netdev.h>
+
+#include <asm/io.h>
+#include <asm/errno.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/mem.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/gpio.h>
+
+#include "common.h"
+
+static u32 cl_omap3_smc911x_gpmc_net_config[GPMC_MAX_REG] = {
+	NET_GPMC_CONFIG1,
+	NET_GPMC_CONFIG2,
+	NET_GPMC_CONFIG3,
+	NET_GPMC_CONFIG4,
+	NET_GPMC_CONFIG5,
+	NET_GPMC_CONFIG6,
+	0
+};
+
+static void cl_omap3_smc911x_setup_net_chip_gmpc(int cs, u32 base_addr)
+{
+	struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
+
+	enable_gpmc_cs_config(cl_omap3_smc911x_gpmc_net_config,
+			      &gpmc_cfg->cs[cs], base_addr, GPMC_SIZE_16M);
+
+	/* Enable off mode for NWE in PADCONF_GPMC_NWE register */
+	writew(readw(&ctrl_base->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
+
+	/* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
+	writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
+
+	/* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
+	writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
+	       &ctrl_base->gpmc_nadv_ale);
+}
+
+#ifdef CONFIG_OMAP_GPIO
+static int cl_omap3_smc911x_reset_net_chip(int gpio)
+{
+	int err;
+
+	if (!gpio_is_valid(gpio))
+		return -EINVAL;
+
+	err = gpio_request(gpio, "eth rst");
+	if (err)
+		return err;
+
+	/* Set gpio as output and send a pulse */
+	gpio_direction_output(gpio, 1);
+	udelay(1);
+	gpio_set_value(gpio, 0);
+	mdelay(40);
+	gpio_set_value(gpio, 1);
+	mdelay(1);
+
+	return 0;
+}
+#else /* !CONFIG_OMAP_GPIO */
+static inline int cl_omap3_smc911x_reset_net_chip(int gpio) { return 0; }
+#endif /* CONFIG_OMAP_GPIO */
+
+int cl_omap3_smc911x_init(int id, int cs, u32 base_addr,
+			  int (*reset)(int), int rst_gpio)
+{
+	int ret;
+
+	cl_omap3_smc911x_setup_net_chip_gmpc(cs, base_addr);
+
+	if (reset)
+		reset(rst_gpio);
+	else
+		cl_omap3_smc911x_reset_net_chip(rst_gpio);
+
+	ret = smc911x_initialize(id, base_addr);
+	if (ret > 0)
+		return ret;
+
+	printf("Failed initializing SMC911x! ");
+	return 0;
+}