powerpc: keymile: Add a check for the PIGGY debug board

Check the presence of the PIGGY on the keymile boards mgcoge,
mgsuvd and kmeter1. If the PIGGY is not present, dont register
this Ethernet device.

Signed-off-by: Heiko Schocher <hs@denx.de>
Acked-by: Ben Warren <biggerbadderben@gmail.com>

board/keymile/common/common.c

@@ -22,10 +22,14 @@
  */
 
 #include <common.h>
+#if defined(CONFIG_MGCOGE)
 #include <mpc8260.h>
+#endif
 #include <ioports.h>
 #include <malloc.h>
 #include <hush.h>
+#include <net.h>
+#include <asm/io.h>
 
 #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
 #include <libfdt.h>
@@ -33,8 +37,6 @@
 
 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 #include <i2c.h>
-#endif
-#include <asm/io.h>
 
 extern int i2c_soft_read_pin (void);
 
@@ -495,6 +497,7 @@ void i2c_init_board(void)
 #endif
 }
 #endif
+#endif
 
 #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
 int fdt_set_node_and_value (void *blob,
@@ -521,3 +524,19 @@ int fdt_set_node_and_value (void *blob,
 	return ret;
 }
 #endif
+
+int ethernet_present (void)
+{
+	return (in_8((u8 *)CONFIG_SYS_PIGGY_BASE + CONFIG_SYS_SLOT_ID_OFF) & 0x80);
+}
+
+int board_eth_init (bd_t *bis)
+{
+#ifdef CONFIG_KEYMILE_HDLC_ENET
+	(void)keymile_hdlc_enet_initialize (bis);
+#endif
+	if (ethernet_present ()) {
+		return -1;
+	}
+	return 0;
+}

board/keymile/common/common.h

@@ -0,0 +1,20 @@
+/*
+ * (C) Copyright 2008
+ * Heiko Schocher, DENX Software Engineering, hs@denx.de.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ */
+
+#ifndef __KEYMILE_COMMON_H
+#define __KEYMILE_COMMON_H
+
+int ethernet_present (void);
+int ivm_read_eeprom (void);
+
+#ifdef CONFIG_KEYMILE_HDLC_ENET
+int keymile_hdlc_enet_initialize (bd_t *bis);
+#endif
+#endif /* __KEYMILE_COMMON_H */

board/keymile/kmeter1/Makefile

@@ -22,12 +22,14 @@
 #
 
 include $(TOPDIR)/config.mk
+ifneq ($(OBJTREE),$(SRCTREE))
+$(shell mkdir -p $(obj)../common)
+endif
 
 LIB	= $(obj)lib$(BOARD).a
 
-COBJS-y += $(BOARD).o
+COBJS	+= $(BOARD).o ../common/common.o
 
-COBJS	:= $(COBJS-y)
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))
 SOBJS	:= $(addprefix $(obj),$(SOBJS))

board/keymile/kmeter1/kmeter1.c

@@ -27,6 +27,8 @@
 #include <pci.h>
 #include <libfdt.h>
 
+#include "../common/common.h"
+
 const qe_iop_conf_t qe_iop_conf_tab[] = {
 	/* port pin dir open_drain assign */
 
@@ -141,7 +143,10 @@ phys_size_t initdram (int board_type)
 
 int checkboard (void)
 {
-	puts ("Board: Keymile kmeter1\n");
+	puts ("Board: Keymile kmeter1");
+	if (ethernet_present ())
+		puts (" with PIGGY.");
+	puts ("\n");
 	return 0;
 }
 

board/keymile/mgcoge/mgcoge.c

@@ -25,6 +25,7 @@
 #include <mpc8260.h>
 #include <ioports.h>
 #include <malloc.h>
+#include <net.h>
 #include <asm/io.h>
 
 #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
@@ -35,7 +36,8 @@
 #include <i2c.h>
 #endif
 
-extern int ivm_read_eeprom (void);
+#include "../common/common.h"
+
 /*
  * I/O Port configuration table
  *
@@ -285,8 +287,10 @@ phys_size_t initdram (int board_type)
 
 int checkboard(void)
 {
-	puts ("Board: mgcoge\n");
-
+	puts ("Board: Keymile mgcoge");
+	if (ethernet_present ())
+		puts (" with PIGGY.");
+	puts ("\n");
 	return 0;
 }
 

board/keymile/mgsuvd/mgsuvd.c

@@ -22,13 +22,14 @@
  */
 #include <common.h>
 #include <mpc8xx.h>
+#include <net.h>
 #include <asm/io.h>
 
 #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
 #include <libfdt.h>
 #endif
 
-extern int ivm_read_eeprom (void);
+#include "../common/common.h"
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -60,7 +61,10 @@ const uint sdram_table[] =
 
 int checkboard (void)
 {
-	puts ("Board: Keymile mgsuvd\n");
+	puts ("Board: Keymile mgsuvd");
+	if (ethernet_present ())
+		puts (" with PIGGY.");
+	puts ("\n");
 	return (0);
 }
 

include/configs/kmeter1.h

@@ -314,6 +314,15 @@
 #define CONFIG_SYS_LOADS_BAUD_CHANGE	1	/* allow baudrate change */
 
 /*
+ * How to get access to the slot ID.  Put this here to make it easy
+ * to modify in a centralized location.  This is used in the HDLC
+ * driver to set the MAC.
+*/
+#define CONFIG_SYS_SLOT_ID_BASE		CONFIG_SYS_PIGGY_BASE
+#define CONFIG_SYS_SLOT_ID_OFF		(0x07)	/* register offset */
+#define CONFIG_SYS_SLOT_ID_MASK		(0x3f)	/* mask for slot ID bits */
+
+/*
  * BOOTP options
  */
 #define CONFIG_BOOTP_BOOTFILESIZE

include/configs/mgcoge.h

@@ -400,4 +400,14 @@
 #define OF_TBCLK		(bd->bi_busfreq / 4)
 #define OF_STDOUT_PATH		"/soc/cpm/serial@11a90"
 
+/*
+ * How to get access to the slot ID.  Put this here to make it easy
+ * to modify in a centralized location.  This is used in the HDLC
+ * driver to set the MAC.
+*/
+#define CONFIG_SYS_SLOT_ID_BASE		CONFIG_SYS_PIGGY_BASE
+#define CONFIG_SYS_SLOT_ID_OFF		(0x07)	/* register offset */
+#define CONFIG_SYS_SLOT_ID_MASK		(0x3f)	/* mask for slot ID bits */
+
+
 #endif /* __CONFIG_H */

include/configs/mgsuvd.h

@@ -211,6 +211,15 @@
 #define CONFIG_ENV_OFFSET_REDUND	(CONFIG_ENV_OFFSET+CONFIG_ENV_SECT_SIZE)
 #define CONFIG_ENV_SIZE_REDUND	(CONFIG_ENV_SIZE)
 
+/*
+ * How to get access to the slot ID.  Put this here to make it easy
+ * to modify in a centralized location.  This is used in the HDLC
+ * driver to set the MAC.
+*/
+#define CONFIG_SYS_SLOT_ID_BASE		CONFIG_SYS_PIGGY_BASE
+#define CONFIG_SYS_SLOT_ID_OFF		(0x07)	/* register offset */
+#define CONFIG_SYS_SLOT_ID_MASK		(0x3f)	/* mask for slot ID bits */
+
 /*-----------------------------------------------------------------------
  * Cache Configuration
  */