add SystemPreInit() and support

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2254 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

src/cpu/amd/model_gx2/syspreinit.c

@@ -0,0 +1,22 @@
+/* ***************************************************************************/
+/* **/
+/* *	StartTimer1*/
+/* **/
+/* *	Entry: none*/
+/* *	Exit: Starts Timer 1 for port 61 use*/
+/* *	Destroys: Al,*/
+/* **/
+/* ***************************************************************************/
+void
+StartTimer1(void){
+	outb(0x56, 0x43);
+	outb(0x12, 0x41);
+}
+
+void
+SystemPreInit(void){
+
+	/* they want a jump ... */
+	__asm__("jmp .+2\ninvd\njmp.+2\n");
+	StartTimer1();
+}

src/mainboard/amd/rumba/auto.c

@@ -101,7 +101,7 @@ static void sdram_set_spd_registers(const struct mem_controller *ctrl)
 #define PLLMSRlo2 ((1<<14) |(1<<13) | (1<<0))
 #include "northbridge/amd/gx2/pll_reset.c"
 #include "cpu/amd/model_gx2/cpureginit.c"
-
+#include "cpu/amd/model_gx2/syspreinit.c"
 static void msr_init(void)
 {
 	__builtin_wrmsr(0x1808,  0x10f3bf00, 0x22fffc02);
@@ -144,6 +144,7 @@ static void main(unsigned long bist)
 		{.channel0 = {(0xa<<3)|0, (0xa<<3)|1}}
 	};
 
+	SystemPreInit();
 	msr_init();
 
 	w83627hf_enable_serial(SERIAL_DEV, TTYS0_BASE);

src/mainboard/lippert/frontrunner/auto.c

@@ -48,7 +48,7 @@ static void sdram_set_spd_registers(const struct mem_controller *ctrl)
 #define PLLMSRlo2 ((1<<14) |(1<<13) | (1<<0))
 #include "northbridge/amd/gx2/pll_reset.c"
 #include "cpu/amd/model_gx2/cpureginit.c"
-
+#include "cpu/amd/model_gx2/syspreinit.c"
 static void msr_init(void)
 {
 	__builtin_wrmsr(0x1808,  0x10f3bf00, 0x22fffc02);
@@ -81,7 +81,7 @@ static void main(unsigned long bist)
 		{.channel0 = {(0xa<<3)|0, (0xa<<3)|1}}
 	};
 	unsigned char temp;
-
+	SystemPreInit();
 	msr_init();
 
 	w83627hf_enable_serial(SERIAL_DEV, TTYS0_BASE);