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authorIgor Grinberg <grinberg@compulab.co.il>2014-11-03 11:32:21 +0200
committerTom Rini <trini@ti.com>2014-11-06 11:04:40 -0500
commit9886c3d7a803f639b975f63397cc24a3307fa7b6 (patch)
tree93e40e7616019c92dcf116e11fffbb19723d7e59 /board/compulab/common
parentf4a40f05f504407a036e2beee88ce17930d5d45c (diff)
downloadu-boot-9886c3d7a803f639b975f63397cc24a3307fa7b6.tar.gz
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>
Diffstat (limited to 'board/compulab/common')
-rw-r--r--board/compulab/common/Makefile1
-rw-r--r--board/compulab/common/common.h11
-rw-r--r--board/compulab/common/omap3_smc911x.c93
3 files changed, 105 insertions, 0 deletions
diff --git a/board/compulab/common/Makefile b/board/compulab/common/Makefile
index 78237d1f12..dbf0009652 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 7a106d6a24..68ffb111dc 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 0000000000..4561661987
--- /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;
+}