drivers/pci : move pci drivers to drivers/pci

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

1 files changed, 0 insertions, 412 deletions

diff --git a/drivers/pci_auto.c b/drivers/pci_auto.c
deleted file mode 100644
index acfda83..0000000
--- a/drivers/pci_auto.c
+++ /dev/null
@@ -1,412 +0,0 @@
-/*
- * arch/ppc/kernel/pci_auto.c
- *
- * PCI autoconfiguration library
- *
- * Author: Matt Porter <mporter@mvista.com>
- *
- * Copyright 2000 MontaVista Software Inc.
- *
- * 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.
- */
-
-#include <common.h>
-
-#ifdef CONFIG_PCI
-
-#include <pci.h>
-
-#undef DEBUG
-#ifdef DEBUG
-#define DEBUGF(x...) printf(x)
-#else
-#define DEBUGF(x...)
-#endif /* DEBUG */
-
-#define	PCIAUTO_IDE_MODE_MASK		0x05
-
-/* the user can define CFG_PCI_CACHE_LINE_SIZE to avoid problems */
-#ifndef CFG_PCI_CACHE_LINE_SIZE
-#define CFG_PCI_CACHE_LINE_SIZE	8
-#endif
-
-/*
- *
- */
-
-void pciauto_region_init(struct pci_region* res)
-{
-	/*
-	 * Avoid allocating PCI resources from address 0 -- this is illegal
-	 * according to PCI 2.1 and moreover, this is known to cause Linux IDE
-	 * drivers to fail. Use a reasonable starting value of 0x1000 instead.
-	 */
-	res->bus_lower = res->bus_start ? res->bus_start : 0x1000;
-}
-
-void pciauto_region_align(struct pci_region *res, unsigned long size)
-{
-	res->bus_lower = ((res->bus_lower - 1) | (size - 1)) + 1;
-}
-
-int pciauto_region_allocate(struct pci_region* res, unsigned int size, unsigned int *bar)
-{
-	unsigned long addr;
-
-	if (!res) {
-		DEBUGF("No resource");
-		goto error;
-	}
-
-	addr = ((res->bus_lower - 1) | (size - 1)) + 1;
-
-	if (addr - res->bus_start + size > res->size) {
-		DEBUGF("No room in resource");
-		goto error;
-	}
-
-	res->bus_lower = addr + size;
-
-	DEBUGF("address=0x%lx bus_lower=%x", addr, res->bus_lower);
-
-	*bar = addr;
-	return 0;
-
- error:
-	*bar = 0xffffffff;
-	return -1;
-}
-
-/*
- *
- */
-
-void pciauto_setup_device(struct pci_controller *hose,
-			  pci_dev_t dev, int bars_num,
-			  struct pci_region *mem,
-			  struct pci_region *prefetch,
-			  struct pci_region *io)
-{
-	unsigned int bar_value, bar_response, bar_size;
-	unsigned int cmdstat = 0;
-	struct pci_region *bar_res;
-	int bar, bar_nr = 0;
-	int found_mem64 = 0;
-
-	pci_hose_read_config_dword(hose, dev, PCI_COMMAND, &cmdstat);
-	cmdstat = (cmdstat & ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) | PCI_COMMAND_MASTER;
-
-	for (bar = PCI_BASE_ADDRESS_0; bar < PCI_BASE_ADDRESS_0 + (bars_num*4); bar += 4) {
-		/* Tickle the BAR and get the response */
-		pci_hose_write_config_dword(hose, dev, bar, 0xffffffff);
-		pci_hose_read_config_dword(hose, dev, bar, &bar_response);
-
-		/* If BAR is not implemented go to the next BAR */
-		if (!bar_response)
-			continue;
-
-		found_mem64 = 0;
-
-		/* Check the BAR type and set our address mask */
-		if (bar_response & PCI_BASE_ADDRESS_SPACE) {
-			bar_size = ((~(bar_response & PCI_BASE_ADDRESS_IO_MASK))
-				   & 0xffff) + 1;
-			bar_res = io;
-
-			DEBUGF("PCI Autoconfig: BAR %d, I/O, size=0x%x, ", bar_nr, bar_size);
-		} else {
-			if ( (bar_response & PCI_BASE_ADDRESS_MEM_TYPE_MASK) ==
-			     PCI_BASE_ADDRESS_MEM_TYPE_64)
-				found_mem64 = 1;
-
-			bar_size = ~(bar_response & PCI_BASE_ADDRESS_MEM_MASK) + 1;
-			if (prefetch && (bar_response & PCI_BASE_ADDRESS_MEM_PREFETCH))
-				bar_res = prefetch;
-			else
-				bar_res = mem;
-
-			DEBUGF("PCI Autoconfig: BAR %d, Mem, size=0x%x, ", bar_nr, bar_size);
-		}
-
-		if (pciauto_region_allocate(bar_res, bar_size, &bar_value) == 0) {
-			/* Write it out and update our limit */
-			pci_hose_write_config_dword(hose, dev, bar, bar_value);
-
-			/*
-			 * If we are a 64-bit decoder then increment to the
-			 * upper 32 bits of the bar and force it to locate
-			 * in the lower 4GB of memory.
-			 */
-			if (found_mem64) {
-				bar += 4;
-				pci_hose_write_config_dword(hose, dev, bar, 0x00000000);
-			}
-
-			cmdstat |= (bar_response & PCI_BASE_ADDRESS_SPACE) ?
-				PCI_COMMAND_IO : PCI_COMMAND_MEMORY;
-		}
-
-		DEBUGF("\n");
-
-		bar_nr++;
-	}
-
-	pci_hose_write_config_dword(hose, dev, PCI_COMMAND, cmdstat);
-	pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE,
-		CFG_PCI_CACHE_LINE_SIZE);
-	pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80);
-}
-
-void pciauto_prescan_setup_bridge(struct pci_controller *hose,
-					 pci_dev_t dev, int sub_bus)
-{
-	struct pci_region *pci_mem = hose->pci_mem;
-	struct pci_region *pci_prefetch = hose->pci_prefetch;
-	struct pci_region *pci_io = hose->pci_io;
-	unsigned int cmdstat;
-
-	pci_hose_read_config_dword(hose, dev, PCI_COMMAND, &cmdstat);
-
-	/* Configure bus number registers */
-	pci_hose_write_config_byte(hose, dev, PCI_PRIMARY_BUS,
-				   PCI_BUS(dev) - hose->first_busno);
-	pci_hose_write_config_byte(hose, dev, PCI_SECONDARY_BUS,
-				   sub_bus - hose->first_busno);
-	pci_hose_write_config_byte(hose, dev, PCI_SUBORDINATE_BUS, 0xff);
-
-	if (pci_mem) {
-		/* Round memory allocator to 1MB boundary */
-		pciauto_region_align(pci_mem, 0x100000);
-
-		/* Set up memory and I/O filter limits, assume 32-bit I/O space */
-		pci_hose_write_config_word(hose, dev, PCI_MEMORY_BASE,
-					(pci_mem->bus_lower & 0xfff00000) >> 16);
-
-		cmdstat |= PCI_COMMAND_MEMORY;
-	}
-
-	if (pci_prefetch) {
-		/* Round memory allocator to 1MB boundary */
-		pciauto_region_align(pci_prefetch, 0x100000);
-
-		/* Set up memory and I/O filter limits, assume 32-bit I/O space */
-		pci_hose_write_config_word(hose, dev, PCI_PREF_MEMORY_BASE,
-					(pci_prefetch->bus_lower & 0xfff00000) >> 16);
-
-		cmdstat |= PCI_COMMAND_MEMORY;
-	} else {
-		/* We don't support prefetchable memory for now, so disable */
-		pci_hose_write_config_word(hose, dev, PCI_PREF_MEMORY_BASE, 0x1000);
-		pci_hose_write_config_word(hose, dev, PCI_PREF_MEMORY_LIMIT, 0x0);
-	}
-
-	if (pci_io) {
-		/* Round I/O allocator to 4KB boundary */
-		pciauto_region_align(pci_io, 0x1000);
-
-		pci_hose_write_config_byte(hose, dev, PCI_IO_BASE,
-					(pci_io->bus_lower & 0x0000f000) >> 8);
-		pci_hose_write_config_word(hose, dev, PCI_IO_BASE_UPPER16,
-					(pci_io->bus_lower & 0xffff0000) >> 16);
-
-		cmdstat |= PCI_COMMAND_IO;
-	}
-
-	/* Enable memory and I/O accesses, enable bus master */
-	pci_hose_write_config_dword(hose, dev, PCI_COMMAND, cmdstat | PCI_COMMAND_MASTER);
-}
-
-void pciauto_postscan_setup_bridge(struct pci_controller *hose,
-					  pci_dev_t dev, int sub_bus)
-{
-	struct pci_region *pci_mem = hose->pci_mem;
-	struct pci_region *pci_prefetch = hose->pci_prefetch;
-	struct pci_region *pci_io = hose->pci_io;
-
-	/* Configure bus number registers */
-	pci_hose_write_config_byte(hose, dev, PCI_SUBORDINATE_BUS,
-				   sub_bus - hose->first_busno);
-
-	if (pci_mem) {
-		/* Round memory allocator to 1MB boundary */
-		pciauto_region_align(pci_mem, 0x100000);
-
-		pci_hose_write_config_word(hose, dev, PCI_MEMORY_LIMIT,
-					(pci_mem->bus_lower-1) >> 16);
-	}
-
-	if (pci_prefetch) {
-		/* Round memory allocator to 1MB boundary */
-		pciauto_region_align(pci_prefetch, 0x100000);
-
-		pci_hose_write_config_word(hose, dev, PCI_PREF_MEMORY_LIMIT,
-					(pci_prefetch->bus_lower-1) >> 16);
-	}
-
-	if (pci_io) {
-		/* Round I/O allocator to 4KB boundary */
-		pciauto_region_align(pci_io, 0x1000);
-
-		pci_hose_write_config_byte(hose, dev, PCI_IO_LIMIT,
-					((pci_io->bus_lower-1) & 0x0000f000) >> 8);
-		pci_hose_write_config_word(hose, dev, PCI_IO_LIMIT_UPPER16,
-					((pci_io->bus_lower-1) & 0xffff0000) >> 16);
-	}
-}
-
-/*
- *
- */
-
-void pciauto_config_init(struct pci_controller *hose)
-{
-	int i;
-
-	hose->pci_io = hose->pci_mem = NULL;
-
-	for (i=0; i<hose->region_count; i++) {
-		switch(hose->regions[i].flags) {
-		case PCI_REGION_IO:
-			if (!hose->pci_io ||
-			    hose->pci_io->size < hose->regions[i].size)
-				hose->pci_io = hose->regions + i;
-			break;
-		case PCI_REGION_MEM:
-			if (!hose->pci_mem ||
-			    hose->pci_mem->size < hose->regions[i].size)
-				hose->pci_mem = hose->regions + i;
-			break;
-		case (PCI_REGION_MEM | PCI_REGION_PREFETCH):
-			if (!hose->pci_prefetch ||
-			    hose->pci_prefetch->size < hose->regions[i].size)
-				hose->pci_prefetch = hose->regions + i;
-			break;
-		}
-	}
-
-
-	if (hose->pci_mem) {
-		pciauto_region_init(hose->pci_mem);
-
-		DEBUGF("PCI Autoconfig: Bus Memory region: [%lx-%lx],\n"
-		       "\t\tPhysical Memory [%x-%x]\n",
-		    hose->pci_mem->bus_start,
-		    hose->pci_mem->bus_start + hose->pci_mem->size - 1,
-		    hose->pci_mem->phys_start,
-		    hose->pci_mem->phys_start + hose->pci_mem->size - 1);
-	}
-
-	if (hose->pci_prefetch) {
-		pciauto_region_init(hose->pci_prefetch);
-
-		DEBUGF("PCI Autoconfig: Bus Prefetchable Mem: [%lx-%lx],\n"
-		       "\t\tPhysical Memory [%x-%x]\n",
-		    hose->pci_prefetch->bus_start,
-		    hose->pci_prefetch->bus_start + hose->pci_prefetch->size - 1,
-		    hose->pci_prefetch->phys_start,
-		    hose->pci_prefetch->phys_start +
-				hose->pci_prefetch->size - 1);
-	}
-
-	if (hose->pci_io) {
-		pciauto_region_init(hose->pci_io);
-
-		DEBUGF("PCI Autoconfig: Bus I/O region: [%lx-%lx],\n"
-		       "\t\tPhysical Memory: [%x-%x]\n",
-		    hose->pci_io->bus_start,
-		    hose->pci_io->bus_start + hose->pci_io->size - 1,
-		    hose->pci_io->phys_start,
-		    hose->pci_io->phys_start + hose->pci_io->size - 1);
-
-	}
-}
-
-/* HJF: Changed this to return int. I think this is required
- * to get the correct result when scanning bridges
- */
-int pciauto_config_device(struct pci_controller *hose, pci_dev_t dev)
-{
-	unsigned int sub_bus = PCI_BUS(dev);
-	unsigned short class;
-	unsigned char prg_iface;
-	int n;
-
-	pci_hose_read_config_word(hose, dev, PCI_CLASS_DEVICE, &class);
-
-	switch(class) {
-	case PCI_CLASS_PROCESSOR_POWERPC: /* an agent or end-point */
-		DEBUGF("PCI AutoConfig: Found PowerPC device\n");
-		pciauto_setup_device(hose, dev, 6, hose->pci_mem,
-				     hose->pci_prefetch, hose->pci_io);
-		break;
-
-	case PCI_CLASS_BRIDGE_PCI:
-		hose->current_busno++;
-		pciauto_setup_device(hose, dev, 2, hose->pci_mem, hose->pci_prefetch, hose->pci_io);
-
-		DEBUGF("PCI Autoconfig: Found P2P bridge, device %d\n", PCI_DEV(dev));
-
-		/* Passing in current_busno allows for sibling P2P bridges */
-		pciauto_prescan_setup_bridge(hose, dev, hose->current_busno);
-		/*
-		 * need to figure out if this is a subordinate bridge on the bus
-		 * to be able to properly set the pri/sec/sub bridge registers.
-		 */
-		n = pci_hose_scan_bus(hose, hose->current_busno);
-
-		/* figure out the deepest we've gone for this leg */
-		sub_bus = max(n, sub_bus);
-		pciauto_postscan_setup_bridge(hose, dev, sub_bus);
-
-		sub_bus = hose->current_busno;
-		break;
-
-	case PCI_CLASS_STORAGE_IDE:
-		pci_hose_read_config_byte(hose, dev, PCI_CLASS_PROG, &prg_iface);
-		if (!(prg_iface & PCIAUTO_IDE_MODE_MASK)) {
-			DEBUGF("PCI Autoconfig: Skipping legacy mode IDE controller\n");
-			return sub_bus;
-		}
-
-		pciauto_setup_device(hose, dev, 6, hose->pci_mem, hose->pci_prefetch, hose->pci_io);
-		break;
-
-	case PCI_CLASS_BRIDGE_CARDBUS:
-		/* just do a minimal setup of the bridge, let the OS take care of the rest */
-		pciauto_setup_device(hose, dev, 0, hose->pci_mem, hose->pci_prefetch, hose->pci_io);
-
-		DEBUGF("PCI Autoconfig: Found P2CardBus bridge, device %d\n", PCI_DEV(dev));
-
-		hose->current_busno++;
-		break;
-
-#ifdef CONFIG_MPC5200
-	case PCI_CLASS_BRIDGE_OTHER:
-		DEBUGF("PCI Autoconfig: Skipping bridge device %d\n",
-		       PCI_DEV(dev));
-		break;
-#endif
-#ifdef CONFIG_MPC834X
-	case PCI_CLASS_BRIDGE_OTHER:
-		/*
-		 * The host/PCI bridge 1 seems broken in 8349 - it presents
-		 * itself as 'PCI_CLASS_BRIDGE_OTHER' and appears as an _agent_
-		 * device claiming resources io/mem/irq.. we only allow for
-		 * the PIMMR window to be allocated (BAR0 - 1MB size)
-		 */
-		DEBUGF("PCI Autoconfig: Broken bridge found, only minimal config\n");
-		pciauto_setup_device(hose, dev, 0, hose->pci_mem, hose->pci_prefetch, hose->pci_io);
-		break;
-#endif
-	default:
-		pciauto_setup_device(hose, dev, 6, hose->pci_mem, hose->pci_prefetch, hose->pci_io);
-		break;
-	}
-
-	return sub_bus;
-}
-
-#endif /* CONFIG_PCI */