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Diffstat (limited to 'board/MAI/AmigaOneG3SE/articiaS_pci.c')
-rw-r--r--board/MAI/AmigaOneG3SE/articiaS_pci.c576
1 files changed, 0 insertions, 576 deletions
diff --git a/board/MAI/AmigaOneG3SE/articiaS_pci.c b/board/MAI/AmigaOneG3SE/articiaS_pci.c
deleted file mode 100644
index 371f67f41d..0000000000
--- a/board/MAI/AmigaOneG3SE/articiaS_pci.c
+++ /dev/null
@@ -1,576 +0,0 @@
-/*
- * (C) Copyright 2002
- * Hyperion Entertainment, Hans-JoergF@hyperion-entertainment.com
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * 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., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <pci.h>
-#include "memio.h"
-#include "articiaS.h"
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#undef ARTICIA_PCI_DEBUG
-
-#ifdef ARTICIA_PCI_DEBUG
-#define PRINTF(fmt,args...) printf (fmt ,##args)
-#else
-#define PRINTF(fmt,args...)
-#endif
-
-struct pci_controller articiaS_hose;
-
-long irq_alloc(long wanted);
-
-static pci_dev_t pci_hose_find_class(struct pci_controller *hose, int bus, short find_class, int index);
-static int articiaS_init_vga(void);
-static void pci_cfgfunc_dummy(struct pci_controller *host, pci_dev_t dev, struct pci_config_table *table);
-unsigned char pci_irq_alloc(void);
-
-extern void via_cfgfunc_via686(struct pci_controller * host, pci_dev_t dev, struct pci_config_table *table);
-extern void via_cfgfunc_ide_init(struct pci_controller *host, pci_dev_t dev, struct pci_config_table *table);
-extern void via_init_irq_routing(uint8 []);
-extern void via_init_afterscan(void);
-
-#define cfgfunc_via686 1
-#define cfgfunc_dummy 2
-#define cfgfunc_ide_init 3
-
-static struct pci_config_table config_table[] =
-{
- {
- 0x1106, PCI_ANY_ID, PCI_CLASS_BRIDGE_ISA, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
- (void *)cfgfunc_via686, {0, 0, 0}
- },
- {
- 0x1106, PCI_ANY_ID, PCI_ANY_ID, 0,7,4,
- (void *)cfgfunc_dummy, {0,0,0}
- },
- {
- 0x1106, 0x3068, PCI_ANY_ID, 0, 7, PCI_ANY_ID,
- (void *)cfgfunc_dummy, {0,0,0}
- },
- {
- 0x1106, PCI_ANY_ID, PCI_ANY_ID, 0,7,1,
- (void *)cfgfunc_ide_init, {0,0,0}
- },
- {
- 0,
- }
-};
-
-
-void pci_cfgfunc_dummy(struct pci_controller *host, pci_dev_t dev, struct pci_config_table *table)
-{
-
-
-}
-
-unsigned long irq_penalties[16] =
-{
- 1000, /* 0:timer */
- 1000, /* 1:keyboard */
- 1000, /* 2:cascade */
- 50, /* 3:serial (COM2) */
- 50, /* 4:serial (COM1) */
- 4, /* 5:USB2 */
- 100, /* 6:floppy */
- 3, /* 7:parallel */
- 50, /* 8:AC97/MC97 */
- 0, /* 9: */
- 3, /* 10:: */
- 0, /* 11: */
- 3, /* 12: USB1 */
- 0, /* 13: */
- 100, /* 14: ide0 */
- 100, /* 15: ide1 */
-};
-
-
-/*
- * The following defines a hard-coded interrupt mapping for the
- * know devices on the board.
- * If a device isn't found here, assumed to be a device that's
- * plugged into a PCI or AGP slot
- * NOTE: This table is machine dependant.
- */
-
-struct pci_irq_fixup_table
-{
- uint8 bus; /* Bus number */
- uint8 device; /* Device number */
- uint8 func; /* Function number */
- uint8 interrupt; /* Interrupt to use (0xff to disable) */
-};
-
-struct pci_irq_fixup_table fixuptab [] =
-{
- { 0, 0, 0, 0xff}, /* Articia S host bridge */
- { 0, 1, 0, 0xff}, /* Articia S AGP bridge */
-/* { 0, 6, 0, 0x05}, /###* 3COM ethernet */
- { 0, 7, 0, 0xff}, /* VIA southbridge */
- { 0, 7, 1, 0x0e}, /* IDE controller in legacy mode */
-/* { 0, 7, 2, 0x05}, /###* First USB controller */
-/* { 0, 7, 3, 0x0c}, /###* Second USB controller (shares interrupt with ethernet) */
- { 0, 7, 4, 0xff}, /* ACPI Power Management */
-/* { 0, 7, 5, 0x08}, /###* AC97 */
-/* { 0, 7, 6, 0x08}, /###* MC97 */
- { 0xff, 0xff, 0xff, 0xff}
-};
-
-
-/*
- * This table maps IRQ's to PCI interrupts
- */
-
-uint8 pci_intmap[4] = {0, 0, 0, 0};
-
-/*
- * Map PCI slots to interrupt routings
- * This table lists the device number assigned to a card inserted
- * into the slot, along with a permutation for the slot's IRQ routing.
- * NOTE: This table is machine dependant.
- */
-
-struct pci_slot_irq_routing
-{
- uint8 bus;
- uint8 device;
-
- uint8 ints[4];
-};
-
-struct pci_slot_irq_routing amigaone_pci_routing[] =
-{
- {0, 8, {0, 1, 2, 3}}, /* Slot 1 (left of riser slot) */
- {0, 9, {1, 2, 3, 0}}, /* Slot 2 (middle slot) */
- {0, 10, {2, 3, 0, 1}}, /* Slot 3 (leftmost slot) */
- {1, 0, {1, 0, 2, 3}}, /* AGP slot (only IRQA and IRQB) */
- {1, 1, {1, 2, 3, 0}}, /* PCI slot on AGP bus */
- {0, 6, {3, 3, 3, 3}}, /* On board ethernet */
- {0, 7, {0, 1, 2, 3}}, /* Southbridge */
- {0xff, 0, {0, 0, 0, 0}}
-};
-
-void articiaS_pci_irq_init(void)
-{
- char *s;
-
- s = getenv("pci_irqa");
- if (s)
- pci_intmap[0] = simple_strtoul (s, NULL, 10);
- else
- pci_intmap[0] = pci_irq_alloc();
-
- s = getenv("pci_irqb");
- if (s)
- pci_intmap[1] = simple_strtoul (s, NULL, 10);
- else
- pci_intmap[1] = pci_irq_alloc();
-
- s = getenv("pci_irqc");
- if (s)
- pci_intmap[2] = simple_strtoul (s, NULL, 10);
- else
- pci_intmap[2] = pci_irq_alloc();
-
- s = getenv("pci_irqd");
- if (s)
- pci_intmap[3] = simple_strtoul (s, NULL, 10);
- else
- pci_intmap[3] = pci_irq_alloc();
-}
-
-
-unsigned char pci_irq_alloc(void)
-{
- int i;
- int interrupt = 10;
- unsigned long min_penalty = 1000;
-
- /* Search for the minimal penalty, favoring interrupts at the end */
- for (i = 0; i < 16; i++)
- {
- if (irq_penalties[i] <= min_penalty)
- {
- interrupt = i;
- min_penalty = irq_penalties[i];
- }
- }
-
- PRINTF("pci_irq_alloc: Minimal penalty is %ld for %d\n", min_penalty, interrupt);
-
- irq_penalties[interrupt]++;
-
- return interrupt;
-}
-
-
-void articiaS_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
-{
- int8 bus, device, func, pin, line;
- int i;
-
- bus = PCI_BUS(dev);
- device = PCI_DEV(dev);
- func = PCI_FUNC(dev);
-
- PRINTF("Fixup irq of %d:%d.%d\n", bus, device, func);
-
- /* Search for the device in the table */
- for (i = 0; fixuptab[i].bus != 0xff; i++)
- {
- if (bus == fixuptab[i].bus && device == fixuptab[i].device && func == fixuptab[i].func)
- {
- /* If the device needs an interrupt, write it */
- if (fixuptab[i].interrupt != 0xff)
- {
- PRINTF("Assigning IRQ %d (fixed)\n", fixuptab[i].interrupt);
- pci_write_config_byte(dev, PCI_INTERRUPT_LINE, fixuptab[i].interrupt);
- }
- else
- {
- /* Otherwise, see if it wants an interrupt, and disable it if needed */
- pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
- if (pin)
- {
- PRINTF("Disabling IRQ\n");
- pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 0xff);
- }
- }
-
- return;
- }
- }
-
- /* If we get here, we have another PCI device in a slot... find the appropriate IRQ */
-
- /* Find matching pin */
- pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
- pin--;
-
- /* Search for it's map */
- for (i = 0; amigaone_pci_routing[i].bus != 0xff; i++)
- {
- if (bus == amigaone_pci_routing[i].bus && device == amigaone_pci_routing[i].device)
- {
- line = pci_intmap[amigaone_pci_routing[i].ints[pin]];
- PRINTF("Assigning IRQ %d (pin %d)\n", line, pin);
- pci_write_config_byte(dev, PCI_INTERRUPT_LINE, line);
- return;
- }
- }
-
- PRINTF("Unkonwn PCI device found\n");
-}
-
-void articiaS_pci_init (void)
-{
- int i;
- char *s;
-
- PRINTF("atriciaS_pci_init\n");
-
- /* Why aren't these relocated?? */
- for (i=0; config_table[i].config_device; i++)
- {
- switch((int)config_table[i].config_device)
- {
- case cfgfunc_via686: config_table[i].config_device = via_cfgfunc_via686; break;
- case cfgfunc_dummy: config_table[i].config_device = pci_cfgfunc_dummy; break;
- case cfgfunc_ide_init: config_table[i].config_device = via_cfgfunc_ide_init; break;
- default: PRINTF("Error: Unknown constant\n");
- }
- }
-
- articiaS_hose.first_busno = 0;
- articiaS_hose.last_busno = 0xff;
- articiaS_hose.config_table = config_table;
- articiaS_hose.fixup_irq = articiaS_pci_fixup_irq;
-
- articiaS_pci_irq_init();
-
- /* System memory */
- pci_set_region(articiaS_hose.regions + 0,
- ARTICIAS_SYS_BUS,
- ARTICIAS_SYS_PHYS,
- ARTICIAS_SYS_MAXSIZE,
- PCI_REGION_MEM | PCI_REGION_SYS_MEMORY);
-
- /* PCI memory space */
- pci_set_region(articiaS_hose.regions + 1,
- ARTICIAS_PCI_BUS,
- ARTICIAS_PCI_PHYS,
- ARTICIAS_PCI_MAXSIZE,
- PCI_REGION_MEM);
-
- /* PCI io space */
- pci_set_region(articiaS_hose.regions + 2,
- ARTICIAS_PCIIO_BUS,
- ARTICIAS_PCIIO_PHYS,
- ARTICIAS_PCIIO_MAXSIZE,
- PCI_REGION_IO);
-
- /* PCI/ISA io space */
- pci_set_region(articiaS_hose.regions + 3,
- ARTICIAS_ISAIO_BUS,
- ARTICIAS_ISAIO_PHYS,
- ARTICIAS_ISAIO_MAXSIZE,
- PCI_REGION_IO);
-
-
- articiaS_hose.region_count = 4;
-
- pci_setup_indirect(&articiaS_hose, ARTICIAS_PCI_CFGADDR, ARTICIAS_PCI_CFGDATA);
- PRINTF("Registering articia hose...\n");
- pci_register_hose(&articiaS_hose);
- PRINTF("Enabling AGP...\n");
- pci_write_config_byte(PCI_BDF(0,0,0), 0x58, 0x01);
- PRINTF("Scanning bus...\n");
- articiaS_hose.last_busno = pci_hose_scan(&articiaS_hose);
-
- via_init_irq_routing(pci_intmap);
-
- PRINTF("After-Scan results:\n");
- PRINTF("Bus range: %d - %d\n", articiaS_hose.first_busno , articiaS_hose.last_busno);
-
- via_init_afterscan();
-
- pci_write_config_byte(PCI_BDF(0,1,0), PCI_INTERRUPT_LINE, 0xFF);
-
- s = getenv("as_irq");
- if (s)
- {
- pci_write_config_byte(PCI_BDF(0,0,0), PCI_INTERRUPT_LINE, simple_strtoul (s, NULL, 10));
- }
-
- s = getenv("x86_run_bios");
- if (!s || (s && strcmp(s, "on")==0))
- {
- if (articiaS_init_vga() == -1)
- {
- /* If the VGA didn't init and we have stdout set to VGA, reset to serial */
-/* s = getenv("stdout"); */
-/* if (s && strcmp(s, "vga") == 0) */
-/* { */
-/* setenv("stdout", "serial"); */
-/* } */
- }
- }
- pci_write_config_byte(PCI_BDF(0,1,0), PCI_INTERRUPT_LINE, 0xFF);
-
-}
-
-pci_dev_t pci_hose_find_class(struct pci_controller *hose, int bus, short find_class, int index)
-{
- unsigned int sub_bus, found_multi=0;
- unsigned short vendor, class;
- unsigned char header_type;
- pci_dev_t dev;
- u8 c1, c2;
-
- sub_bus = bus;
-
- for (dev = PCI_BDF(bus,0,0);
- dev < PCI_BDF(bus,PCI_MAX_PCI_DEVICES-1,PCI_MAX_PCI_FUNCTIONS-1);
- dev += PCI_BDF(0,0,1))
- {
- if ( dev == PCI_BDF(hose->first_busno,0,0) )
- continue;
-
- if (PCI_FUNC(dev) && !found_multi)
- continue;
-
- pci_hose_read_config_byte(hose, dev, PCI_HEADER_TYPE, &header_type);
-
- pci_hose_read_config_word(hose, dev, PCI_VENDOR_ID, &vendor);
-
- if (vendor != 0xffff && vendor != 0x0000)
- {
-
- if (!PCI_FUNC(dev))
- found_multi = header_type & 0x80;
- pci_hose_read_config_byte(hose, dev, 0x0B, &c1);
- pci_hose_read_config_byte(hose, dev, 0x0A, &c2);
- class = c1<<8 | c2;
- /*printf("At %02x:%02x:%02x: class %x\n", */
- /* PCI_BUS(dev), PCI_DEV(dev), PCI_FUNC(dev), class); */
- if (class == find_class)
- {
- if (index == 0)
- return dev;
- else index--;
- }
- }
- }
-
- return ~0;
-}
-
-
-/*
- * For a given bus number, find the bridge on this hose that provides this
- * bus number. The function scans for bridges and peeks config space offset
- * 0x19 (PCI_SECONDARY_BUS).
- */
-pci_dev_t pci_find_bridge_for_bus(struct pci_controller *hose, int busnr)
-{
- pci_dev_t dev;
- int bus;
- unsigned int found_multi=0;
- unsigned char header_type;
- unsigned short vendor;
- unsigned char secondary_bus;
-
- if (hose == NULL) hose = &articiaS_hose;
-
- if (busnr < hose->first_busno || busnr > hose->last_busno) return PCI_ANY_ID; /* Not in range */
-
- /*
- * The bridge must be on a lower bus number
- */
- for (bus = hose->first_busno; bus < busnr; bus++)
- {
- for (dev = PCI_BDF(bus,0,0);
- dev < PCI_BDF(bus,PCI_MAX_PCI_DEVICES-1,PCI_MAX_PCI_FUNCTIONS-1);
- dev += PCI_BDF(0,0,1))
- {
- if ( dev == PCI_BDF(hose->first_busno,0,0) )
- continue;
-
- if (PCI_FUNC(dev) && !found_multi)
- continue;
-
- pci_hose_read_config_byte(hose, dev, PCI_HEADER_TYPE, &header_type);
-
- pci_hose_read_config_word(hose, dev, PCI_VENDOR_ID, &vendor);
-
- if (vendor != 0xffff && vendor != 0x0000)
- {
-
- if (!PCI_FUNC(dev))
- found_multi = header_type & 0x80;
- if (header_type == 1) /* Bridge device header */
- {
- pci_hose_read_config_byte(hose, dev, PCI_SECONDARY_BUS, &secondary_bus);
- if ((int)secondary_bus == busnr) return dev;
- }
-
- }
- }
- }
- return PCI_ANY_ID;
-}
-
-static short classes[] =
-{
- PCI_CLASS_DISPLAY_VGA,
- PCI_CLASS_DISPLAY_XGA,
- PCI_CLASS_DISPLAY_3D,
- PCI_CLASS_DISPLAY_OTHER,
- ~0
-};
-
-extern int execute_bios(pci_dev_t gr_dev, void *);
-
-pci_dev_t video_dev;
-
-int articiaS_init_vga (void)
-{
- extern void shutdown_bios(void);
- pci_dev_t dev = ~0;
- int busnr = 0;
- int classnr = 0;
-
- video_dev = PCI_ANY_ID;
-
- printf("VGA: ");
-
- PRINTF("Trying to initialize x86 VGA Card(s)\n");
-
- while (dev == ~0)
- {
- PRINTF("Searching for class 0x%x on bus %d\n", classes[classnr], busnr);
- /* Find the first of this class on this bus */
- dev = pci_hose_find_class(&articiaS_hose, busnr, classes[classnr], 0);
- if (dev != ~0)
- {
- PRINTF("Found VGA Card at %02x:%02x:%02x\n", PCI_BUS(dev), PCI_DEV(dev), PCI_FUNC(dev));
- break;
- }
- busnr++;
- if (busnr > articiaS_hose.last_busno)
- {
- busnr = 0;
- classnr ++;
- if (classes[classnr] == ~0)
- {
- printf("NOT PRESENT\n");
- return -1;
- }
- }
- }
-
- /*
- * If we get here we have found the first graphics card.
- * If the bus number is not 0, then it is probably behind a bridge, and the
- * bridge needs to be told to forward VGA access.
- */
-
- if (PCI_BUS(dev) != 0)
- {
- pci_dev_t bridge;
- PRINTF("Behind bridge, looking for bridge\n");
- bridge = pci_find_bridge_for_bus(&articiaS_hose, PCI_BUS(dev));
- if (dev != PCI_ANY_ID)
- {
- unsigned char agp_control_0;
- PRINTF("Got the bridge at %02x:%02x:%02x\n",
- PCI_BUS(bridge), PCI_DEV(bridge), PCI_FUNC(bridge));
- pci_hose_read_config_byte(&articiaS_hose, bridge, 0x3E, &agp_control_0);
- agp_control_0 |= 0x18;
- pci_hose_write_config_byte(&articiaS_hose, bridge, 0x3E, agp_control_0);
- PRINTF("Configured for VGA forwarding\n");
- }
- }
-
- /*
- * Now try to run the bios
- */
- PRINTF("Trying to run bios now\n");
- if (execute_bios(dev, gd->relocaddr))
- {
- printf("OK\n");
- video_dev = dev;
- }
- else
- {
- printf("ERROR\n");
- }
-
- PRINTF("Done scanning.\n");
-
- shutdown_bios();
-
- if (dev == PCI_ANY_ID) return -1;
- else return 0;
-
-}
generated by cgit (git 2.34.1) at 2024-12-29 00:21:57 +0000