Final set of changes to make Alix1c work.

Fix IRQ tables (Thanks to Marc Jones)

Fix IRQ SLOT #

Comment out ram test in early startup. 

make the debug print in lx/raminit.c a debug print, not emerg print

Set the default console log level to 3, but leave in the possibility of 
running with more info (leave maximum at 11)

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>

Acked-by: Marc Jones <marc.jones@amd.com>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2952 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

3 files changed, 121 insertions, 83 deletions

diff --git a/src/mainboard/pcengines/alix1c/Options.lb b/src/mainboard/pcengines/alix1c/Options.lb
index c174e377d0..c4fce0a4c6 100644
--- a/src/mainboard/pcengines/alix1c/Options.lb
+++ b/src/mainboard/pcengines/alix1c/Options.lb
@@ -103,7 +103,7 @@ 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=9
+default IRQ_SLOT_COUNT=5
 #object irq_tables.o
 
 ##
diff --git a/src/mainboard/pcengines/alix1c/cache_as_ram_auto.c b/src/mainboard/pcengines/alix1c/cache_as_ram_auto.c
index 4142eaf0ab..7f4898fac9 100644
--- a/src/mainboard/pcengines/alix1c/cache_as_ram_auto.c
+++ b/src/mainboard/pcengines/alix1c/cache_as_ram_auto.c
@@ -169,7 +169,8 @@ void cache_as_ram_main(void)
 	sdram_initialize(1, memctrl);
 
 	/* Check memory */
-	ram_check(0x00000000, 640 * 1024);
+	/* enable this only if you are having questions */
+	/* ram_check(0x00000000, 640 * 1024);*/
 
 	/* Switch from Cache as RAM to real RAM 
 	 * There are two ways we could think about this.  
diff --git a/src/mainboard/pcengines/alix1c/irq_tables.c b/src/mainboard/pcengines/alix1c/irq_tables.c
index 6f40e892e1..55d2823085 100644
--- a/src/mainboard/pcengines/alix1c/irq_tables.c
+++ b/src/mainboard/pcengines/alix1c/irq_tables.c
@@ -1,21 +1,21 @@
 /*
- * This file is part of the LinuxBIOS project.
- *
- * Copyright (C) 2007 Advanced Micro Devices, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
- */
+* This file is part of the LinuxBIOS project.
+*
+* Copyright (C) 2007 Advanced Micro Devices, Inc.
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 2 as
+* published by the Free Software Foundation.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program; if not, write to the Free Software
+* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+*/
 
 #include <arch/pirq_routing.h>
 #include <console/console.h>
@@ -25,83 +25,120 @@
 
 /* Platform IRQs */
 #define PIRQA 11
-#define PIRQB 5
-#define PIRQC 10
-#define PIRQD 10
+#define PIRQB 10
+#define PIRQC 11
+#define PIRQD 9
 
 /* Map */
-#define M_PIRQA (1 << PIRQA)  /* Bitmap of supported IRQs */
-#define M_PIRQB (1 << PIRQB)  /* Bitmap of supported IRQs */
-#define M_PIRQC (1 << PIRQC)  /* Bitmap of supported IRQs */
-#define M_PIRQD (1 << PIRQD)  /* Bitmap of supported IRQs */
+#define M_PIRQA (1 << PIRQA)	/* Bitmap of supported IRQs */
+#define M_PIRQB (1 << PIRQB)	/* Bitmap of supported IRQs */
+#define M_PIRQC (1 << PIRQC)	/* Bitmap of supported IRQs */
+#define M_PIRQD (1 << PIRQD)	/* Bitmap of supported IRQs */
 
 /* Link */
-#define L_PIRQA  1 /* Means Slot INTx# Connects To Chipset INTA# */
-#define L_PIRQB  2 /* Means Slot INTx# Connects To Chipset INTB# */
-#define L_PIRQC  3 /* Means Slot INTx# Connects To Chipset INTC# */
-#define L_PIRQD  4 /* Means Slot INTx# Connects To Chipset INTD# */
+#define L_PIRQA 1		/* Means Slot INTx# Connects To Chipset INTA# */
+#define L_PIRQB 2		/* Means Slot INTx# Connects To Chipset INTB# */
+#define L_PIRQC 3		/* Means Slot INTx# Connects To Chipset INTC# */
+#define L_PIRQD 4		/* Means Slot INTx# Connects To Chipset INTD# */
 
+/* ALIX 1c interrupt wiring. Devices are:
+ * 00:01.0 Host bridge: Advanced Micro Devices [AMD] CS5536 [Geode companion] Host Bridge (rev 31)
+ * 00:01.2 Entertainment encryption device: Advanced Micro Devices [AMD] Geode LX AES Security Block
+ * 00:0d.0 Ethernet controller: VIA Technologies, Inc. VT6105M [Rhine-III] (rev 96)
+ * 00:0e.0 Network controller: Intersil Corporation Prism 2.5 Wavelan chipset (rev 01)
+ * 00:0f.0 ISA bridge: Advanced Micro Devices [AMD] CS5536 [Geode companion] ISA (rev 03)
+ * 00:0f.2 IDE interface: Advanced Micro Devices [AMD] CS5536 [Geode companion] IDE (rev 01)
+ * 00:0f.3 Multimedia audio controller: Advanced Micro Devices [AMD] CS5536 [Geode companion] Audio (rev 01)
+ * 00:0f.4 USB Controller: Advanced Micro Devices [AMD] CS5536 [Geode companion] OHC (rev 02)
+ * 00:0f.5 USB Controller: Advanced Micro Devices [AMD] CS5536 [Geode companion] EHC (rev 02)
+ * The only devices that interrupt are:
+ * What         device  IRQ     PIN     PIN WIRED TO
+ * AES          00:01.2 0a      01      A       A
+ * 3VPCI        00:0c.0 0a      01      A       A
+ * eth0 	00:0d.0 0b      01      A       B
+ * mpci 	00:0e.0 0a      01      A       A
+ * usb          00:0f.3 0b      02      B       B
+ * usb          00:0f.4 0b      04      D       D
+ * usb          00:0f.5 0b      04      D       D
+ *
+ * The only swizzled interrupt is eth0, where INTA is wired to interrupt controller line B
+*/
 const struct irq_routing_table intel_irq_routing_table = {
-	PIRQ_SIGNATURE,  /* u32 signature */
-	PIRQ_VERSION,    /* u16 version   */
-	32+16*IRQ_SLOT_COUNT,	 /* There can be total IRQ_SLOT_COUNT devices on the bus */
-	0x00,		 /* Where the interrupt router lies (bus) */
-	(0x0f<<3)|0x0,   /* Where the interrupt router lies (dev) */
-	0,		 /* IRQs devoted exclusively to PCI usage */
-	0x100b,		 /* Vendor */
-	0x2b,		 /* Device */
-	0,		 /* Crap (miniport) */
-	{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* u8 rfu[11] */
-	0xe,		 /* u8 checksum. This has to be 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,(0x01<<3)|0x0, {{0x01, 0x0400}, {0x00, 0x0000}, {0x00, 0x0000}, {0x00, 0x00000}}, 0x0, 0x0},
-		{0x00,(0x0f<<3)|0x0, {{0x01, 0x0400}, {0x02, 0x0800}, {0x03, 0x0400}, {0x04, 0x00800}}, 0x0, 0x0},
-		{0x00,(0x13<<3)|0x0, {{0x01, 0x0400}, {0x00, 0x0000}, {0x00, 0x0000}, {0x00, 0x00000}}, 0x0, 0x0},
-		{0x00,(0x12<<3)|0x0, {{0x03, 0x0400}, {0x00, 0x0000}, {0x00, 0x0000}, {0x00, 0x00000}}, 0x0, 0x0},
-		{0x00,(0x11<<3)|0x0, {{0x01, 0x0400}, {0x02, 0x0800}, {0x00, 0x0000}, {0x00, 0x00000}}, 0x0, 0x0},
-		{0x00,(0x0a<<3)|0x0, {{0x01, 0x0400}, {0x02, 0x0800}, {0x03, 0x0400}, {0x04, 0x00800}}, 0x1, 0x0},
-		{0x00,(0x0b<<3)|0x0, {{0x02, 0x0800}, {0x03, 0x0400}, {0x04, 0x0800}, {0x01, 0x00400}}, 0x2, 0x0},
-		{0x00,(0x0c<<3)|0x0, {{0x03, 0x0400}, {0x04, 0x0800}, {0x01, 0x0400}, {0x02, 0x00800}}, 0x3, 0x0},
-		{0x00,(0x0d<<3)|0x0, {{0x04, 0x0800}, {0x01, 0x0400}, {0x02, 0x0800}, {0x03, 0x00400}}, 0x4, 0x0},
+PIRQ_SIGNATURE,		/* u32 signature */
+PIRQ_VERSION,		/* u16 version   */
+32 + 16 * IRQ_SLOT_COUNT,
+0x00,			/* Where the interrupt router lies (bus) */
+(0x0F << 3) | 0x0,      /* Where the interrupt router lies (dev) */
+0x00,			/* IRQs devoted exclusively to PCI usage */
+0x100B,			/* Vendor */
+0x002B,			/* Device */
+0,			/* Crap (miniport) */
+{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},	/* u8 rfu[11] */
+0x00,			/* u8 checksum , this has to set to 
+			 * some value that would give 0 
+			 * after the sum of all bytes 
+			 * for this structure 
+			 * (including checksum) 
+			 */
+{
+	/* If you change the number of entries, 
+	 * change the IRQ_SLOT_COUNT above! 
+	 */
+	/* bus, dev|fn,           {link, bitmap},      {link, bitmap},     {link, bitmap},     {link, bitmap},     slot, rfu */
+	{0x00, (0x01 << 3) | 0x0, {{L_PIRQA, M_PIRQA}, {0x00, 0x00}, {0x00, 0x00}, {0x00, 0x00}}, 0x0, 0x0},	/* cpu */
+		/* PCI SLOT */
+		{0x00, (0x0C << 3) | 0x0, {{L_PIRQA, M_PIRQA}, {L_PIRQB, M_PIRQB}, {L_PIRQC, M_PIRQC}, {L_PIRQD, M_PIRQD}}, 0x4, 0x0},	/* slot1 */
+		/* ONBOARD ETHER */
+		{0x00, (0x0D << 3) | 0x0, {{L_PIRQB, M_PIRQB}, {0x00, 0x00}, {0x00, 0x00}, {0x00, 0x00}}, 0x0, 0x0},	/* ethernet */
+		/* MINI PCI */
+		{0x00, (0x0E << 3) | 0x0, {{L_PIRQA, M_PIRQA}, {L_PIRQB, M_PIRQB}, {L_PIRQC, M_PIRQC}, {L_PIRQD, M_PIRQD}}, 0x1, 0x0},	/* mini slot2 */
+		/* Chipset slots -- f.3 wires to B, and f.4 and f.5 wires to D */
+		{0x00, (0x0F << 3) | 0x0, {{L_PIRQA, M_PIRQA}, {L_PIRQB, M_PIRQB}, {L_PIRQC, M_PIRQC}, {L_PIRQD, M_PIRQD}}, 0x0, 0x0},	/* chipset */
 	}
 };
 
+unsigned long write_pirq_routing_table(unsigned long addr)
+{
+	int i, j, k, num_entries;
+	unsigned char pirq[4];
+	uint16_t chipset_irq_map;
+	uint32_t pciAddr, pirtable_end;
+	struct irq_routing_table *pirq_tbl;
 
-unsigned long write_pirq_routing_table(unsigned long addr){
-       int i, j, k, num_entries;
-       unsigned int pirq[4];
-       uint16_t chipset_irq_map;
-       uint32_t pciAddr, pirtable_end;
-       struct irq_routing_table *pirq_tbl;
+	pirtable_end = copy_pirq_routing_table(addr);
 
-       pirtable_end = copy_pirq_routing_table(addr);
+	/* Set up chipset IRQ steering. */
+	pciAddr = 0x80000000 | (CHIPSET_DEV_NUM << 11) | 0x5C;
+	chipset_irq_map = (PIRQD << 12 | PIRQC << 8 | PIRQB << 4 | PIRQA);
+	printk_debug("%s(%08X, %04X)\n", __FUNCTION__, pciAddr,
+		     chipset_irq_map);
+	outl(pciAddr & ~3, 0xCF8);
+	outl(chipset_irq_map, 0xCFC);
 
-       /* Set up chipset IRQ steering */
-       pciAddr = 0x80000000 | (CHIPSET_DEV_NUM << 11) | 0x5C;
-       chipset_irq_map = (11 << 12 | 10 << 8 | 11 << 4 | 10);
-       printk_debug("%s(%08X, %04X)\n", __FUNCTION__, pciAddr, chipset_irq_map);
-       outl(pciAddr & ~3, 0xCF8);
-       outl(chipset_irq_map, 0xCFC);
+	pirq_tbl = (struct irq_routing_table *) (addr);
+	num_entries = (pirq_tbl->size - 32) / 16;
 
-       pirq_tbl = (struct irq_routing_table *)(addr);
-       num_entries = (pirq_tbl->size - 32)/16;
+	/* Set PCI IRQs. */
+	for (i = 0; i < num_entries; i++) {
+		printk_debug("PIR Entry %d Dev/Fn: %X Slot: %d\n", i,
+			     pirq_tbl->slots[i].devfn, pirq_tbl->slots[i].slot);
+		for (j = 0; j < 4; j++) {
+			printk_debug("INT: %c bitmap: %x ", 'A' + j,
+				     pirq_tbl->slots[i].irq[j].bitmap);
+			/* Finds lsb in bitmap to IRQ#. */
+			for (k = 0; 
+			     (!((pirq_tbl->slots[i].irq[j].bitmap >> k) & 1)) 
+				     && (pirq_tbl->slots[i].irq[j].bitmap != 0);
+			     k++);
+			pirq[j] = k;
+			printk_debug("PIRQ: %d\n", k);
+		}
 
-       /* Set PCI IRQs */
-       for (i=0; i < num_entries; i++){
-               printk_debug("PIR Entry %d Dev/Fn: %X Slot: %d\n", i, pirq_tbl->slots[i].devfn, pirq_tbl->slots[i].slot);
-               for (j = 0; j < 4; j++){
-               printk_debug("INT: %c bitmap: %x ", 'A'+j, pirq_tbl->slots[i].irq[j].bitmap);
-                       for (k = 0; (!((pirq_tbl->slots[i].irq[j].bitmap >> k) & 1)) && (pirq_tbl->slots[i].irq[j].bitmap != 0); k++); /* finds lsb in bitmap to IRQ# */
-                       pirq[j] = k;
-                       printk_debug("PIRQ: %d\n", k);
-               }
-               pci_assign_irqs(pirq_tbl->slots[i].bus, pirq_tbl->slots[i].devfn, pirq);        /* bus, device, slots IRQs for {A,B,C,D} */
-       }
+		/* Bus, device, slots IRQs for {A,B,C,D}. */
+		pci_assign_irqs(pirq_tbl->slots[i].bus,
+				pirq_tbl->slots[i].devfn >> 3, pirq);
+	}
 
-       /* put the PIR table in memory and checksum */
-       return pirtable_end;
+	/* Put the PIR table in memory and checksum. */
+	return pirtable_end;
 }
-