ARM: OMAP3LOGIC: Added SMSC Ethernet board support
Tim Nordell [Mon, 27 Sep 2010 16:05:50 +0000 (16:05 +0000)]
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>

arch/arm/mach-omap2/board-omap3logic.c

index 8b60360..4c045cf 100644 (file)
@@ -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);