[LinuxBIOS] Patch for advantech som_gx533

Richard Smith smithbone at gmail.com
Sat Mar 25 10:26:42 CET 2006


- The attached diff sets up a config for the Advantech gx533 eval board I have.
- It also adds some verbosity and pass fail logic to the ram test. 
Since the ram test always printed "DRAM verified" regardless of pass
or fail I worked for a long time trying to understand why I died when
I jumped to RAM.  When the real reason was that my RAM is hosed.

So now if the RAM test fails then its _obvious_.

Is 256 failed attempts before aborting really necessary?  I mean > 1
is problem.  Will anyone object to making the abort number much
smaller?

The changes are trivial so unless someone has objections I'll commit.

Ok on to my debugging.  So my RAM isn't playing nice.  From the log
you can see that Bit 8 is not clearing.  Any suggestions on what
register I should go tweak on to tune up my RAM?


LinuxBIOS-1.1.8.0Fallback Sat Mar 25 03:09:37 CST 2006 starting...
reboot from BIOS reset
done cs5535 early
Cpu core is 0000014e
reboot from BIOS reset
done pll_reset
Ram1.00
Ram2.00
Ram3
Ram4
Done sdram_initialize
Disable watchdog
ffCAN NOT READ SUPERIO VID
ff:ff
Testing DRAM : 00000000-00004000
DRAM fill: 00000000-00004000
00000000 00004000
DRAM filled
DRAM verify: 00000000-00004000
00000000 Fail: @0x00000000 Read value=0x00001000
Fail: @0x00000004 Read value=0x00001004
Fail: @0x00000008 Read value=0x00001008
Fail: @0x0000000c Read value=0x0000100c
Fail: @0x00000010 Read value=0x00001010
Fail: @0x00000014 Read value=0x00001014
Fail: @0x00000018 Read value=0x00001018
Fail: @0x0000001c Read value=0x0000101c
Fail: @0x00000020 Read value=0x00001020
<snip>
Fail: @0x000003fc Read value=0x000013fc
Fail: @0x00000400 Read value=0x00001400
Aborting.
00000400
DRAM did _NOT_ verify!
Done.
Testing DRAM : 00020000-00024000
DRAM fill: 00020000-00024000
00020000 00024000
DRAM filled
DRAM verify: 00020000-00024000
00020000 Fail: @0x00020000 Read value=0x00021000
Fail: @0x00020004 Read value=0x00021004
Fail: @0x00020008 Read value=0x00021008
Fail: @0x0002000c Read value=0x0002100c
Fail: @0x00020010 Read value=0x00021010
Fail: @0x00020014 Read value=0x00021014
Fail: @0x00020018 Read value=0x00021018
Fail: @0x0002001c Read value=0x0002101c
<snip>
Fail: @0x000203f0 Read value=0x000213f0
Fail: @0x000203f4 Read value=0x000213f4
Fail: @0x000203f8 Read value=0x000213f8
Fail: @0x000203fc Read value=0x000213fc
Fail: @0x00020400 Read value=0x00021400
Aborting.
00020400
DRAM did _NOT_ verify!
Done.
Testing DRAM : 00000000-000a0000
DRAM fill: 00000000-000a0000
00000000 00010000 00020000 00030000 00040000 00050000 00060000
00070000 00080000 00090000 000a0000
DRAM filled
DRAM verify: 00000000-000a0000
00000000 Fail: @0x00000000 Read value=0x00001000
Fail: @0x00000004 Read value=0x00001004
Fail: @0x00000008 Read value=0x00001008
Fail: @0x0000000c Read value=0x0000100c
Fail: @0x00000010 Read value=0x00001010
Fail: @0x00000014 Read value=0x00001014
Fail: @0x00000018 Read value=0x00001018
Fail: @0x0000001c Read value=0x0000101c
Fail: @0x00000020 Read value=0x00001020
<snip>
Fail: @0x000003f0 Read value=0x000013f0
Fail: @0x000003f4 Read value=0x000013f4
Fail: @0x000003f8 Read value=0x000013f8
Fail: @0x000003fc Read value=0x000013fc
Fail: @0x00000400 Read value=0x00001400
Aborting.
00000400
DRAM did _NOT_ verify!
Done.
Copying LinuxBIOS to ram.
Jumping to LinuxBIOS.


--
Richard A. Smith
-------------- next part --------------
Index: src/ram/ramtest.c
===================================================================
--- src/ram/ramtest.c	(revision 2227)
+++ src/ram/ramtest.c	(working copy)
@@ -69,17 +69,26 @@
 		value = read_phys(addr);
 		if (value != addr) {
 			/* Display address with error */
+			print_err("Fail: @0x");
 			print_err_hex32(addr);
-			print_err_char(':');
+			print_err(" Read value=0x");
 			print_err_hex32(value);
 			print_err("\r\n");
 			i++;
-			if(i>256) break;
+			if(i>256) {
+				print_debug("Aborting.\n\r");
+				break;
+			}
 		}
 	}
 	/* Display final address */
 	print_debug_hex32(addr);
-	print_debug("\r\nDRAM verified\r\n");
+	if (i) {
+		print_debug("\r\nDRAM did _NOT_ verify!\r\n");
+	}
+	else {
+		print_debug("\r\nDRAM range verified.\r\n");
+	}
 }
 
 
Index: src/mainboard/advantech/som_gx533c/Config.lb
===================================================================
--- src/mainboard/advantech/som_gx533c/Config.lb	(revision 0)
+++ src/mainboard/advantech/som_gx533c/Config.lb	(revision 0)
@@ -0,0 +1,143 @@
+##
+## Compute the location and size of where this firmware image
+## (linuxBIOS plus bootloader) will live in the boot rom chip.
+##
+if USE_FALLBACK_IMAGE
+	default ROM_SECTION_SIZE   = FALLBACK_SIZE
+	default ROM_SECTION_OFFSET = ( ROM_SIZE - FALLBACK_SIZE )
+else
+	default ROM_SECTION_SIZE   = ( ROM_SIZE - FALLBACK_SIZE )
+	default ROM_SECTION_OFFSET = 0
+end
+
+##
+## Compute the start location and size size of
+## The linuxBIOS bootloader.
+##
+default CONFIG_ROM_STREAM_START = (0xffffffff - ROM_SIZE + ROM_SECTION_OFFSET + 1)
+default PAYLOAD_SIZE            = ( ROM_SECTION_SIZE - ROM_IMAGE_SIZE )
+
+##
+## Compute where this copy of linuxBIOS will start in the boot rom
+##
+default _ROMBASE      = ( CONFIG_ROM_STREAM_START + PAYLOAD_SIZE )
+
+##
+## Compute a range of ROM that can cached to speed up linuxBIOS,
+## execution speed.
+##
+## XIP_ROM_SIZE must be a power of 2.
+## XIP_ROM_BASE must be a multiple of XIP_ROM_SIZE
+##
+default XIP_ROM_SIZE=65536
+default XIP_ROM_BASE = ( _ROMBASE + ROM_IMAGE_SIZE - XIP_ROM_SIZE )
+
+##
+## Set all of the defaults for an x86 architecture
+##
+
+arch i386 end
+
+##
+## Build the objects we have code for in this directory.
+##
+
+driver mainboard.o
+
+if HAVE_PIRQ_TABLE object irq_tables.o end
+#object reset.o
+
+##
+## Romcc output
+##
+makerule ./failover.E
+	depends "$(MAINBOARD)/failover.c ./romcc" 
+	action "./romcc -E -O --label-prefix=failover -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/failover.c -o $@"
+end
+
+makerule ./failover.inc
+	depends "$(MAINBOARD)/failover.c ./romcc"
+	action "./romcc    -O --label-prefix=failover -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/failover.c -o $@"
+end
+
+makerule ./auto.E 
+	depends	"$(MAINBOARD)/auto.c option_table.h ./romcc" 
+	action	"./romcc -E -mcpu=i386 -O -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/auto.c -o $@"
+end
+makerule ./auto.inc 
+	depends "$(MAINBOARD)/auto.c option_table.h ./romcc"
+	action	"./romcc    -mcpu=i386 -O -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/auto.c -o $@"
+end
+
+##
+## Build our 16 bit and 32 bit linuxBIOS entry code
+##
+mainboardinit cpu/x86/16bit/entry16.inc
+mainboardinit cpu/x86/32bit/entry32.inc
+ldscript /cpu/x86/16bit/entry16.lds
+ldscript /cpu/x86/32bit/entry32.lds
+
+##
+## Build our reset vector (This is where linuxBIOS is entered)
+##
+if USE_FALLBACK_IMAGE 
+	mainboardinit cpu/x86/16bit/reset16.inc 
+	ldscript /cpu/x86/16bit/reset16.lds 
+else
+	mainboardinit cpu/x86/32bit/reset32.inc 
+	ldscript /cpu/x86/32bit/reset32.lds 
+end
+
+### Should this be in the northbridge code?
+mainboardinit arch/i386/lib/cpu_reset.inc
+
+##
+## Include an id string (For safe flashing)
+##
+mainboardinit arch/i386/lib/id.inc
+ldscript /arch/i386/lib/id.lds
+
+###
+### This is the early phase of linuxBIOS startup 
+### Things are delicate and we test to see if we should
+### failover to another image.
+###
+if USE_FALLBACK_IMAGE
+	ldscript /arch/i386/lib/failover.lds 
+	mainboardinit ./failover.inc
+end
+
+###
+### O.k. We aren't just an intermediary anymore!
+###
+
+##
+## Setup RAM
+##
+mainboardinit cpu/x86/fpu/enable_fpu.inc
+mainboardinit ./auto.inc
+
+##
+## Include the secondary Configuration files 
+##
+dir /pc80
+config chip.h
+
+chip northbridge/amd/gx2
+  device pci_domain 0 on 
+    device pci 0.0 on end
+      chip southbridge/amd/cs5535
+        device pci 12.0 on
+        device pci 12.1 off end		# SMI
+        device pci 12.2 on  end		# IDE
+        device pci 12.3 off end 	# Audio
+        device pci 12.4 off end		# VGA
+      end
+    end
+  end
+
+  chip cpu/amd/model_gx2
+  end
+
+end
+
Index: src/mainboard/advantech/som_gx533c/reset.c
===================================================================
--- src/mainboard/advantech/som_gx533c/reset.c	(revision 0)
+++ src/mainboard/advantech/som_gx533c/reset.c	(revision 0)
@@ -0,0 +1,43 @@
+#if 0
+//#include "arch/romcc_io.h"
+#include <arch/io.h>
+
+typedef unsigned device_t;
+
+#define PCI_DEV(BUS, DEV, FN) ( \
+	(((BUS) & 0xFF) << 16) | \
+	(((DEV) & 0x1f) << 11) | \
+	(((FN)  & 0x7) << 8))
+
+static void pci_write_config8(device_t dev, unsigned where, unsigned char value)
+{
+        unsigned addr;
+        addr = dev | where;
+        outl(0x80000000 | (addr & ~3), 0xCF8);
+        outb(value, 0xCFC + (addr & 3));
+}
+
+static void pci_write_config32(device_t dev, unsigned where, unsigned value)
+{
+	unsigned addr;
+        addr = dev | where;
+        outl(0x80000000 | (addr & ~3), 0xCF8);
+        outl(value, 0xCFC);
+}
+
+static unsigned pci_read_config32(device_t dev, unsigned where)
+{
+	unsigned addr;
+        addr = dev | where;
+        outl(0x80000000 | (addr & ~3), 0xCF8);
+        return inl(0xCFC);
+}
+
+#include "../../../northbridge/amd/amdk8/reset_test.c"
+
+void hard_reset(void)
+{
+	set_bios_reset();
+	pci_write_config8(PCI_DEV(1, 0x04, 0), 0x47, 1);
+}
+#endif
Index: src/mainboard/advantech/som_gx533c/irq_tables.c
===================================================================
--- src/mainboard/advantech/som_gx533c/irq_tables.c	(revision 0)
+++ src/mainboard/advantech/som_gx533c/irq_tables.c	(revision 0)
@@ -0,0 +1,31 @@
+/* This file was generated by getpir.c, do not modify! 
+   (but if you do, please run checkpir on it to verify)
+ * Contains the IRQ Routing Table dumped directly from your memory, which BIOS sets up
+ *
+ * Documentation at : http://www.microsoft.com/hwdev/busbios/PCIIRQ.HTM
+*/
+
+#include <arch/pirq_routing.h>
+
+const struct irq_routing_table intel_irq_routing_table = {
+	PIRQ_SIGNATURE,  /* u32 signature */
+	PIRQ_VERSION,    /* u16 version   */
+	32+16*2,	 /* there can be total 2 devices on the bus */
+	0x00,		 /* Where the interrupt router lies (bus) */
+	(0x12<<3)|0x0,   /* Where the interrupt router lies (dev) */
+	0x800,		 /* IRQs devoted exclusively to PCI usage */
+	0x1078,		 /* Vendor */
+	0x2,		 /* Device */
+	0,		 /* Crap (miniport) */
+	{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* u8 rfu[11] */
+	0xdf,         /*  u8 checksum , this hase to set to some value that would give 0 after the sum of all bytes for this structure (including checksum) */
+	{
+		/* bus,     dev|fn,   {link, bitmap}, {link, bitmap}, {link, bitmap}, {link, bitmap},  slot, rfu */
+		{0x00,(0x0e<<3)|0x0, {{0x02, 0xdeb8}, {0x03, 0xdeb8}, {0x04, 0xdeb8}, {0x01, 0x0deb8}}, 0x1, 0x0},
+		{0x00,(0x0f<<3)|0x0, {{0x03, 0xdeb8}, {0x04, 0xdeb8}, {0x01, 0xdeb8}, {0x02, 0x0deb8}}, 0x2, 0x0},
+	}
+};
+unsigned long write_pirq_routing_table(unsigned long addr)
+{
+        return copy_pirq_routing_table(addr);
+}
Index: src/mainboard/advantech/som_gx533c/Options.lb
===================================================================
--- src/mainboard/advantech/som_gx533c/Options.lb	(revision 0)
+++ src/mainboard/advantech/som_gx533c/Options.lb	(revision 0)
@@ -0,0 +1,160 @@
+uses HAVE_MP_TABLE
+uses HAVE_PIRQ_TABLE
+uses USE_FALLBACK_IMAGE
+uses HAVE_FALLBACK_BOOT
+uses HAVE_HARD_RESET
+uses HAVE_OPTION_TABLE
+uses USE_OPTION_TABLE
+uses CONFIG_ROM_STREAM
+uses IRQ_SLOT_COUNT
+uses MAINBOARD
+uses MAINBOARD_VENDOR
+uses MAINBOARD_PART_NUMBER
+uses LINUXBIOS_EXTRA_VERSION
+uses ARCH
+uses FALLBACK_SIZE
+uses STACK_SIZE
+uses HEAP_SIZE
+uses ROM_SIZE
+uses ROM_SECTION_SIZE
+uses ROM_IMAGE_SIZE
+uses ROM_SECTION_SIZE
+uses ROM_SECTION_OFFSET
+uses CONFIG_ROM_STREAM_START
+uses PAYLOAD_SIZE
+uses _ROMBASE
+uses _RAMBASE
+uses XIP_ROM_SIZE
+uses XIP_ROM_BASE
+uses HAVE_MP_TABLE
+uses CROSS_COMPILE
+uses CC
+uses HOSTCC
+uses OBJCOPY
+uses DEFAULT_CONSOLE_LOGLEVEL
+uses MAXIMUM_CONSOLE_LOGLEVEL
+uses CONFIG_CONSOLE_SERIAL8250
+uses TTYS0_BAUD
+uses TTYS0_BASE
+uses TTYS0_LCS
+uses CONFIG_UDELAY_TSC
+uses CONFIG_TSC_X86RDTSC_CALIBRATE_WITH_TIMER2
+
+## ROM_SIZE is the size of boot ROM that this board will use.
+default ROM_SIZE  = 256*1024
+
+###
+### Build options
+###
+
+##
+## Build code for the fallback boot
+##
+default HAVE_FALLBACK_BOOT=1
+
+##
+## no MP table
+##
+default HAVE_MP_TABLE=0
+
+##
+## Build code to reset the motherboard from linuxBIOS
+##
+default HAVE_HARD_RESET=0
+
+## Delay timer options
+##
+default CONFIG_UDELAY_TSC=1
+default CONFIG_TSC_X86RDTSC_CALIBRATE_WITH_TIMER2=1
+
+##
+## Build code to export a programmable irq routing table
+##
+default HAVE_PIRQ_TABLE=1
+default IRQ_SLOT_COUNT=2
+#object irq_tables.o
+
+##
+## Build code to export a CMOS option table
+##
+default HAVE_OPTION_TABLE=0
+
+###
+### LinuxBIOS layout values
+###
+
+## ROM_IMAGE_SIZE is the amount of space to allow linuxBIOS to occupy.
+default ROM_IMAGE_SIZE = 65536
+default FALLBACK_SIZE = 131072
+
+##
+## Use a small 8K stack
+##
+default STACK_SIZE=0x2000
+
+##
+## Use a small 16K heap
+##
+default HEAP_SIZE=0x4000
+
+##
+## Only use the option table in a normal image
+##
+#default USE_OPTION_TABLE = !USE_FALLBACK_IMAGE
+default USE_OPTION_TABLE = 0
+
+default _RAMBASE = 0x00004000
+
+default CONFIG_ROM_STREAM     = 1
+
+##
+## The default compiler
+##
+default CROSS_COMPILE=""
+default CC="$(CROSS_COMPILE)gcc -m32"
+default HOSTCC="gcc"
+
+##
+## The Serial Console
+##
+
+# To Enable the Serial Console
+default CONFIG_CONSOLE_SERIAL8250=1
+
+## Select the serial console baud rate
+default TTYS0_BAUD=115200
+#default TTYS0_BAUD=57600
+#default TTYS0_BAUD=38400
+#default TTYS0_BAUD=19200
+#default TTYS0_BAUD=9600
+#default TTYS0_BAUD=4800
+#default TTYS0_BAUD=2400
+#default TTYS0_BAUD=1200
+
+# Select the serial console base port
+default TTYS0_BASE=0x3f8
+
+# Select the serial protocol
+# This defaults to 8 data bits, 1 stop bit, and no parity
+default TTYS0_LCS=0x3
+
+##
+### Select the linuxBIOS loglevel
+##
+## EMERG      1   system is unusable               
+## ALERT      2   action must be taken immediately 
+## CRIT       3   critical conditions              
+## ERR        4   error conditions                 
+## WARNING    5   warning conditions               
+## NOTICE     6   normal but significant condition 
+## INFO       7   informational                    
+## DEBUG      8   debug-level messages             
+## SPEW       9   Way too many details             
+
+## Request this level of debugging output
+default  DEFAULT_CONSOLE_LOGLEVEL=8
+## At a maximum only compile in this level of debugging
+default  MAXIMUM_CONSOLE_LOGLEVEL=8
+
+end
+
Index: src/mainboard/advantech/som_gx533c/debug.c
===================================================================
--- src/mainboard/advantech/som_gx533c/debug.c	(revision 0)
+++ src/mainboard/advantech/som_gx533c/debug.c	(revision 0)
@@ -0,0 +1,66 @@
+
+static void print_debug_pci_dev(unsigned dev)
+{
+	print_debug("PCI: ");
+	print_debug_hex8((dev >> 16) & 0xff);
+	print_debug_char(':');
+	print_debug_hex8((dev >> 11) & 0x1f);
+	print_debug_char('.');
+	print_debug_hex8((dev >> 8) & 7);
+}
+
+static void print_pci_devices(void)
+{
+	device_t dev;
+	for(dev = PCI_DEV(0, 0, 0); 
+		dev <= PCI_DEV(0, 0x1f, 0x7); 
+		dev += PCI_DEV(0,0,1)) {
+		uint32_t id;
+		id = pci_read_config32(dev, PCI_VENDOR_ID);
+		if (((id & 0xffff) == 0x0000) || ((id & 0xffff) == 0xffff) ||
+			(((id >> 16) & 0xffff) == 0xffff) ||
+			(((id >> 16) & 0xffff) == 0x0000)) {
+			continue;
+		}
+		print_debug_pci_dev(dev);
+		print_debug("\r\n");
+	}
+}
+
+static void dump_pci_device(unsigned dev)
+{
+	int i;
+	print_debug_pci_dev(dev);
+	print_debug("\r\n");
+	
+	for(i = 0; i <= 255; i++) {
+		unsigned char val;
+		if ((i & 0x0f) == 0) {
+			print_debug_hex8(i);
+			print_debug_char(':');
+		}
+		val = pci_read_config8(dev, i);
+		print_debug_char(' ');
+		print_debug_hex8(val);
+		if ((i & 0x0f) == 0x0f) {
+			print_debug("\r\n");
+		}
+	}
+}
+
+static void dump_pci_devices(void)
+{
+	device_t dev;
+	for(dev = PCI_DEV(0, 0, 0); 
+		dev <= PCI_DEV(0, 0x1f, 0x7); 
+		dev += PCI_DEV(0,0,1)) {
+		uint32_t id;
+		id = pci_read_config32(dev, PCI_VENDOR_ID);
+		if (((id & 0xffff) == 0x0000) || ((id & 0xffff) == 0xffff) ||
+			(((id >> 16) & 0xffff) == 0xffff) ||
+			(((id >> 16) & 0xffff) == 0x0000)) {
+			continue;
+		}
+		dump_pci_device(dev);
+	}
+}
Index: src/mainboard/advantech/som_gx533c/failover.c
===================================================================
--- src/mainboard/advantech/som_gx533c/failover.c	(revision 0)
+++ src/mainboard/advantech/som_gx533c/failover.c	(revision 0)
@@ -0,0 +1,32 @@
+#define ASSEMBLY 1
+#include <stdint.h>
+#include <device/pci_def.h>
+#include <device/pci_ids.h>
+#include <arch/io.h>
+#include "arch/romcc_io.h"
+#include "pc80/mc146818rtc_early.c"
+
+static unsigned long main(unsigned long bist)
+{
+	/* This is the primary cpu how should I boot? */
+	if (do_normal_boot()) {
+		goto normal_image;
+	}
+	else {
+		goto fallback_image;
+	}
+ normal_image:
+	asm volatile ("jmp __normal_image" 
+		: /* outputs */ 
+		: "a" (bist) /* inputs */
+		: /* clobbers */
+		);
+ cpu_reset:
+	asm volatile ("jmp __cpu_reset"
+		: /* outputs */ 
+		: "a"(bist) /* inputs */
+		: /* clobbers */
+		);
+ fallback_image:
+	return bist;
+}
Index: src/mainboard/advantech/som_gx533c/auto.c
===================================================================
--- src/mainboard/advantech/som_gx533c/auto.c	(revision 0)
+++ src/mainboard/advantech/som_gx533c/auto.c	(revision 0)
@@ -0,0 +1,134 @@
+#define ASSEMBLY 1
+
+#include <stdint.h>
+#include <device/pci_def.h>
+#include <arch/io.h>
+#include <device/pnp_def.h>
+#include <arch/romcc_io.h>
+#include <arch/hlt.h>
+#include "pc80/serial.c"
+#include "arch/i386/lib/console.c"
+#include "ram/ramtest.c"
+#include "superio/NSC/pc87360/pc87360_early_serial.c"
+#include "cpu/x86/bist.h"
+#include "cpu/x86/msr.h"
+#include <cpu/amd/gx2def.h>
+
+#define SERIAL_DEV PNP_DEV(0x2e,  PC87360_SP1)
+
+#include "southbridge/amd/cs5535/cs5535_early_smbus.c"
+#include "southbridge/amd/cs5535/cs5535_early_setup.c"
+#include "northbridge/amd/gx2/raminit.h"
+
+/* this has to be done on a per-mainboard basis, esp. if you don't have smbus */
+static void sdram_set_spd_registers(const struct mem_controller *ctrl) 
+{
+	msr_t msr;
+	/* 1. Initialize GLMC registers base on SPD values,
+	 * Hard coded as XpressROM for now */
+	//print_debug("sdram_enable step 1\r\n");
+	msr = rdmsr(0x20000018);
+	msr.hi = 0x10076013;
+	msr.lo = 0x3400;
+	wrmsr(0x20000018, msr);
+
+	msr = rdmsr(0x20000019);
+	msr.hi = 0x18000008;
+	msr.lo = 0x696332a3;
+	wrmsr(0x20000019, msr);
+
+}
+
+#include "northbridge/amd/gx2/raminit.c"
+#include "sdram/generic_sdram.c"
+
+#define PLLMSRhi 0x00000226
+#define PLLMSRlo 0x00000008
+#define PLLMSRlo1 ((0xde << 16) | (1 << 26) | (1 << 24))
+#define PLLMSRlo2 ((1<<14) |(1<<13) | (1<<0))
+#include "northbridge/amd/gx2/pll_reset.c"
+
+
+static void msr_init(void)
+{
+	__builtin_wrmsr(0x1808,  0x10f3bf00, 0x22fffc02);
+
+	__builtin_wrmsr(0x10000020, 0xfff80, 0x20000000);
+        __builtin_wrmsr(0x10000021, 0x80fffe0, 0x20000000);
+        __builtin_wrmsr(0x10000026, 0x400fffc0, 0x2cfbc040);
+        __builtin_wrmsr(0x10000027, 0xfff00000, 0xff);
+        __builtin_wrmsr(0x10000028, 0x7bf00100, 0x2000000f);
+        __builtin_wrmsr(0x1000002c, 0xff030003, 0x20000000);
+
+        __builtin_wrmsr(0x10000080, 0x3, 0x0);
+
+        __builtin_wrmsr(0x40000020, 0xfff80, 0x20000000);
+        __builtin_wrmsr(0x40000021, 0x80fffe0, 0x20000000);
+	__builtin_wrmsr(0x40000023, 0x400fffc0, 0x20000040);
+        __builtin_wrmsr(0x40000024, 0xff4ffffc, 0x200000ef);
+        __builtin_wrmsr(0x40000029, 0x7bf00100, 0x2000000f);
+        __builtin_wrmsr(0x4000002d, 0xff030003, 0x20000000);
+
+
+        __builtin_wrmsr(0x50002001, 0x27, 0x0);
+        __builtin_wrmsr(0x4c002001, 0x1, 0x0);
+}
+
+
+static void main(unsigned long bist)
+{
+	static const struct mem_controller memctrl [] = {
+		{.channel0 = {(0xa<<3)|0, (0xa<<3)|1}}
+	};
+	unsigned char temp;
+
+	msr_init();
+
+	pc87360_enable_serial(SERIAL_DEV, TTYS0_BASE);
+	uart_init();
+	console_init();
+
+	cs5535_early_setup();
+	print_err("done cs5535 early\n");
+	pll_reset();
+	print_err("done pll_reset\n");
+	/* Halt if there was a built in self test failure */
+	//report_bist_failure(bist);
+	
+	sdram_initialize(1, memctrl);
+
+	print_err("Done sdram_initialize\n");
+	print_err("Disable watchdog\n");
+	outb( 0x87, 0x4E);                            //enter SuperIO configuration mode
+	outb( 0x87, 0x4E);
+
+
+   	outb(0x20, 0x4e);
+	temp = inb(0x4f);
+	print_debug_hex8(temp);
+	if (temp != 0x52){
+		print_err("CAN NOT READ SUPERIO VID\n");
+	}
+
+	outb(0x29, 0x4e);
+	outb(0x7c, 0x4f);
+
+	outb( 0x07, 0x4E);                            //enable logical device 9
+	outb( 0x09, 0x4F);
+	outb(0x30, 0x4e);
+	outb(1, 0x4f);
+	outb( 0xF0, 0x4E);                            //set GP33 as outbut in configuration register F0h     Bit4 = \u20180\u2019
+	outb( 0xC7, 0x4F);
+	outb( 0xF1, 0x4E);                            //clr GP33 (Bit4) value in cofiguration register F1h to \u20181\u2019 disables
+	temp = inb(0x4F);                            //watchdog function. Make sure to let the other Bits unchanged!
+	print_debug_hex8(temp);print_debug(":");
+	temp = temp & ~8;
+	outb( temp, 0x4F);
+	temp = inb(0x4F);                            //watchdog function. Make sure to let the other Bits unchanged!
+	print_debug_hex8(temp);print_debug("\n");
+	/* Check all of memory */
+	ram_check(0, 16384);
+	ram_check(0x20000, 0x24000);
+	ram_check(0x00000000, 640*1024);
+
+}
Index: src/mainboard/advantech/som_gx533c/chip.h
===================================================================
--- src/mainboard/advantech/som_gx533c/chip.h	(revision 0)
+++ src/mainboard/advantech/som_gx533c/chip.h	(revision 0)
@@ -0,0 +1,5 @@
+extern struct chip_operations mainboard_advantech_som_gx533c_ops;
+
+struct mainboard_advantech_som_gx533c_config {
+	int nothing;
+};
Index: src/mainboard/advantech/som_gx533c/cmos.layout
===================================================================
--- src/mainboard/advantech/som_gx533c/cmos.layout	(revision 0)
+++ src/mainboard/advantech/som_gx533c/cmos.layout	(revision 0)
@@ -0,0 +1,74 @@
+entries
+
+#start-bit length  config config-ID    name
+#0            8       r       0        seconds
+#8            8       r       0        alarm_seconds
+#16           8       r       0        minutes
+#24           8       r       0        alarm_minutes
+#32           8       r       0        hours
+#40           8       r       0        alarm_hours
+#48           8       r       0        day_of_week
+#56           8       r       0        day_of_month
+#64           8       r       0        month
+#72           8       r       0        year
+#80           4       r       0        rate_select
+#84           3       r       0        REF_Clock
+#87           1       r       0        UIP
+#88           1       r       0        auto_switch_DST
+#89           1       r       0        24_hour_mode
+#90           1       r       0        binary_values_enable
+#91           1       r       0        square-wave_out_enable
+#92           1       r       0        update_finished_enable
+#93           1       r       0        alarm_interrupt_enable
+#94           1       r       0        periodic_interrupt_enable
+#95           1       r       0        disable_clock_updates
+#96         288       r       0        temporary_filler
+0          384       r       0        reserved_memory
+384          1       e       4        boot_option
+385          1       e       4        last_boot
+386          1       e       1        ECC_memory
+388          4       r       0        reboot_bits
+392          3       e       5        baud_rate
+400          1       e       1        power_on_after_fail
+412          4       e       6        debug_level
+416          4       e       7        boot_first
+420          4       e       7        boot_second
+424          4       e       7        boot_third
+428          4       h       0        boot_index
+432	     8       h       0        boot_countdown
+1008         16      h       0        check_sum
+
+enumerations
+
+#ID value   text
+1     0     Disable
+1     1     Enable
+2     0     Enable
+2     1     Disable
+4     0     Fallback
+4     1     Normal
+5     0     115200
+5     1     57600
+5     2     38400
+5     3     19200
+5     4     9600
+5     5     4800
+5     6     2400
+5     7     1200
+6     6     Notice
+6     7     Info
+6     8     Debug
+6     9     Spew
+7     0     Network
+7     1     HDD
+7     2     Floppy
+7     8     Fallback_Network
+7     9     Fallback_HDD
+7     10    Fallback_Floppy
+#7     3     ROM
+
+checksums
+
+checksum 392 1007 1008
+
+
Index: src/mainboard/advantech/som_gx533c/mainboard.c
===================================================================
--- src/mainboard/advantech/som_gx533c/mainboard.c	(revision 0)
+++ src/mainboard/advantech/som_gx533c/mainboard.c	(revision 0)
@@ -0,0 +1,12 @@
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+#include <arch/io.h>
+#include "chip.h"
+
+struct chip_operations mainboard_advantech_som_gx533c_ops = {
+	CHIP_NAME("Advantech SOM GX DB533-C mainboard ")
+};
+
Index: targets/advantech/som_gx533c/Config.lb
===================================================================
--- targets/advantech/som_gx533c/Config.lb	(revision 0)
+++ targets/advantech/som_gx533c/Config.lb	(revision 0)
@@ -0,0 +1,37 @@
+# Config file for the Advantech eval kit with a SOM-DB2301 baseboard 
+# and a SOM 2354 Cpu module. (gx533)
+# This will make a target directory of som_gx533c
+
+target som_gx533c
+mainboard advantech/som_gx533c
+
+option ROM_SIZE=1024*512
+
+option MAXIMUM_CONSOLE_LOGLEVEL=9
+option DEFAULT_CONSOLE_LOGLEVEL=9
+
+romimage "normal"
+	option USE_FALLBACK_IMAGE=0
+	option ROM_IMAGE_SIZE=0x10000
+	option LINUXBIOS_EXTRA_VERSION=".0Normal"
+#	payload /usr/share/etherboot/5.1.9pre2-lnxi-lb/tg3--ide_disk.zelf
+#	payload ../../../../tg3--ide_disk.zelf	
+#	payload ../../../../../lnxieepro100.ebi
+	payload /etc/hosts
+#	payload /home/hamish/work/etherboot/eb-5.2.6-lne100.elf
+#	payload /tmp/filo.elf
+end
+
+romimage "fallback" 
+	option USE_FALLBACK_IMAGE=1
+	option ROM_IMAGE_SIZE=0x10000
+	option LINUXBIOS_EXTRA_VERSION=".0Fallback"
+#	payload /usr/share/etherboot/5.1.9pre2-lnxi-lb/tg3--ide_disk.zelf
+#	payload ../../../../tg3--ide_disk.zelf	
+#	payload ../../../../../lnxieepro100.ebia
+	payload /etc/hosts
+#	payload /home/hamish/work/etherboot/eb-5.2.6-lne100.elf
+#	payload /tmp/filo.elf
+end
+
+buildrom ./linuxbios.rom ROM_SIZE "normal" "fallback"




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