added framework for chip detection on the ifxmips

SVN-Revision: 9925

target/linux/ifxmips/files/arch/mips/ifxmips/board.c

@@ -33,9 +33,19 @@
 #include <asm/time.h>
 #include <asm/irq.h>
 #include <asm/io.h>
+#include <asm/ifxmips/ifxmips.h>
 
 #define MAX_IFXMIPS_DEVS		5
 
+#define BOARD_DANUBE			"Danube"
+#define BOARD_DANUBE_CHIPID		0x10129083
+
+#define BOARD_TWINPASS			"Twinpass"
+
+#define BOARD_DANUBE			"Danube"
+
+static unsigned int chiprev;
+
 static struct platform_device *ifxmips_devs[MAX_IFXMIPS_DEVS];
 
 static struct platform_device ifxmips_led[] =
@@ -62,6 +72,19 @@ static struct platform_device ifxmips_mii[] =
 	},
 };
 
+const char*
+get_system_type (void)
+{
+	chiprev = readl(IFXMIPS_MPS_CHIPID);
+	switch(chiprev)
+	{
+	case BOARD_DANUBE_CHIPID:
+		return BOARD_DANUBE;
+	}
+
+	return BOARD_SYSTEM_TYPE;
+}
+
 int __init ifxmips_init_devices(void)
 {
 	/*

target/linux/ifxmips/files/arch/mips/ifxmips/setup.c

@@ -146,7 +146,7 @@ plat_timer_setup (struct irqaction *irq)
 	writel(0xffff, IFXMIPS_GPTU_GPT_CAPREL);
 	writel(0x80C0, IFXMIPS_GPTU_GPT_T6CON);
 
-	retval = setup_irq(IFXMIPS_TIMER6_INT, &hrt_irqaction);
+	//retval = setup_irq(IFXMIPS_TIMER6_INT, &hrt_irqaction);
 
 	if (retval)
 	{
@@ -154,11 +154,13 @@ plat_timer_setup (struct irqaction *irq)
 	}
 }
 
+extern const char* get_system_type (void);
+
 void __init
 plat_mem_setup (void)
 {
 	u32 status;
-	prom_printf("This %s has a cpu rev of 0x%X\n", BOARD_SYSTEM_TYPE, ifxmips_get_cpu_ver());
+	prom_printf("This %s has a cpu rev of 0x%X\n", get_system_type(), ifxmips_get_cpu_ver());
 
 	//TODO WHY ???
 	/* clear RE bit*/

target/linux/ifxmips/files/include/asm-mips/ifxmips/ifxmips.h

@@ -426,4 +426,10 @@
 #define IFXMIPS_FUSE_BASE_ADDR	(KSEG1 + 0x1F107354)
 
 
+/*------------ MPS */
+
+#define IFXMIPS_MPS_BASE_ADDR	(KSEG1 + 0x1F107000)
+
+#define IFXMIPS_MPS_CHIPID		((u32*)(IFXMIPS_MPS_BASE_ADDR + 0x0344))
+
 #endif