ARM: OMAP3LOGIC: Added SMSC Ethernet board support

Enable SMSC911x Ethernet driver for LogicPD's OMAP
3530 LV SOM and OMAP 35x Torpedo board.

Signed-off-by: Tim Nordell <tim.nordell@logicpd.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 65 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/board-omap3logic.c b/arch/arm/mach-omap2/board-omap3logic.c
index 8b6036053e1b..4c045cf91bc8 100644
--- a/arch/arm/mach-omap2/board-omap3logic.c
+++ b/arch/arm/mach-omap2/board-omap3logic.c
@@ -39,6 +39,7 @@
 #include <plat/mux.h>
 #include <plat/board.h>
 #include <plat/common.h>
+#include <plat/gpmc-smsc911x.h>
 #include <plat/gpmc.h>
 #include <plat/timer-gp.h>
 #include <plat/sdrc.h>
@@ -142,6 +143,58 @@ static void __init board_mmc_init(void)
         omap3logic_vmmc1_supply.dev = board_mmc_info[0].dev;
 }
 
+static struct omap_smsc911x_platform_data __initdata board_smsc911x_data = {
+        .cs             = OMAP3LOGIC_SMSC911X_CS,
+        .gpio_irq       = -EINVAL,
+        .gpio_reset     = -EINVAL,
+        .flags          = IORESOURCE_IRQ_LOWLEVEL,
+};
+
+/* TODO/FIXME (comment by Peter Barada, LogicPD):
+ * Fix the PBIAS voltage for Torpedo MMC1 pins that
+ * are used for other needs (IRQs, etc).            */
+static void omap3torpedo_fix_pbias_voltage(void)
+{
+        u16 control_pbias_offset = OMAP343X_CONTROL_PBIAS_LITE;
+        u32 reg;
+
+        if (machine_is_omap3_torpedo())
+        {
+                /* Set the bias for the pin */
+                reg = omap_ctrl_readl(control_pbias_offset);
+
+                reg &= ~OMAP343X_PBIASLITEPWRDNZ1;
+                omap_ctrl_writel(reg, control_pbias_offset);
+
+                /* 100ms delay required for PBIAS configuration */
+                msleep(100);
+
+                reg |= OMAP343X_PBIASLITEVMODE1;
+                reg |= OMAP343X_PBIASLITEPWRDNZ1;
+                omap_ctrl_writel(reg | 0x300, control_pbias_offset);
+        }
+}
+
+static inline void __init board_smsc911x_init(void)
+{
+        if (machine_is_omap3530_lv_som()) {
+                /* OMAP3530 LV SOM board */
+                board_smsc911x_data.gpio_irq =
+                                        OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ;
+                omap_mux_init_signal("gpio_152", OMAP_PIN_INPUT);
+        } else if (machine_is_omap3_torpedo()) {
+                /* OMAP3 Torpedo board */
+                board_smsc911x_data.gpio_irq = OMAP3_TORPEDO_SMSC911X_GPIO_IRQ;
+                omap_mux_init_signal("gpio_129", OMAP_PIN_INPUT);
+        } else {
+                /* unsupported board */
+                printk(KERN_ERR "%s(): unknown machine type\n", __func__);
+                return;
+        }
+
+        gpmc_smsc911x_init(&board_smsc911x_data);
+}
+
 static void __init omap3logic_init_irq(void)
 {
         omap2_init_common_hw(NULL, NULL);
@@ -149,11 +202,23 @@ static void __init omap3logic_init_irq(void)
         omap_gpio_init();
 }
 
+#ifdef CONFIG_OMAP_MUX
+static struct omap_board_mux board_mux[] __initdata = {
+        { .reg_offset = OMAP_MUX_TERMINATOR },
+};
+#else
+#define board_mux       NULL
+#endif
+
 static void __init omap3logic_init(void)
 {
+        omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
+        omap3torpedo_fix_pbias_voltage();
         omap3logic_i2c_init();
         omap_serial_init();
         board_mmc_init();
+        board_smsc911x_init();
+
         /* Ensure SDRC pins are mux'd for self-refresh */
         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);