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-rw-r--r--src/mainboard/pcengines/alix1c/Options.lb2
-rw-r--r--src/mainboard/pcengines/alix1c/cache_as_ram_auto.c3
-rw-r--r--src/mainboard/pcengines/alix1c/irq_tables.c199
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;
}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 06:08:34 +0000