diff options
Diffstat (limited to 'drivers/mtd/maps/scx200_docflash.c')
| -rw-r--r-- | drivers/mtd/maps/scx200_docflash.c | 74 |
1 files changed, 33 insertions, 41 deletions
diff --git a/drivers/mtd/maps/scx200_docflash.c b/drivers/mtd/maps/scx200_docflash.c index 0ece3786d6e..f1c1f737d0d 100644 --- a/drivers/mtd/maps/scx200_docflash.c +++ b/drivers/mtd/maps/scx200_docflash.c @@ -1,14 +1,11 @@ -/* linux/drivers/mtd/maps/scx200_docflash.c +/* linux/drivers/mtd/maps/scx200_docflash.c Copyright (c) 2001,2002 Christer Weinigel <wingel@nano-system.com> - $Id: scx200_docflash.c,v 1.10 2004/11/28 09:40:40 dwmw2 Exp $ - National Semiconductor SCx200 flash mapped with DOCCS */ #include <linux/module.h> -#include <linux/config.h> #include <linux/types.h> #include <linux/kernel.h> #include <linux/init.h> @@ -47,32 +44,29 @@ static struct resource docmem = { static struct mtd_info *mymtd; -#ifdef CONFIG_MTD_PARTITIONS static struct mtd_partition partition_info[] = { - { - .name = "DOCCS Boot kernel", - .offset = 0, + { + .name = "DOCCS Boot kernel", + .offset = 0, .size = 0xc0000 }, - { - .name = "DOCCS Low BIOS", - .offset = 0xc0000, + { + .name = "DOCCS Low BIOS", + .offset = 0xc0000, .size = 0x40000 }, - { - .name = "DOCCS File system", - .offset = 0x100000, + { + .name = "DOCCS File system", + .offset = 0x100000, .size = ~0 /* calculate from flash size */ }, - { - .name = "DOCCS High BIOS", + { + .name = "DOCCS High BIOS", .offset = ~0, /* calculate from flash size */ .size = 0x80000 }, }; -#define NUM_PARTITIONS (sizeof(partition_info)/sizeof(partition_info[0])) -#endif - +#define NUM_PARTITIONS ARRAY_SIZE(partition_info) static struct map_info scx200_docflash_map = { .name = "NatSemi SCx200 DOCCS Flash", @@ -88,19 +82,23 @@ static int __init init_scx200_docflash(void) printk(KERN_DEBUG NAME ": NatSemi SCx200 DOCCS Flash Driver\n"); - if ((bridge = pci_find_device(PCI_VENDOR_ID_NS, + if ((bridge = pci_get_device(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SCx200_BRIDGE, NULL)) == NULL) return -ENODEV; /* check that we have found the configuration block */ - if (!scx200_cb_present()) + if (!scx200_cb_present()) { + pci_dev_put(bridge); return -ENODEV; + } if (probe) { /* Try to use the present flash mapping if any */ pci_read_config_dword(bridge, SCx200_DOCCS_BASE, &base); pci_read_config_dword(bridge, SCx200_DOCCS_CTRL, &ctrl); + pci_dev_put(bridge); + pmr = inl(scx200_cb_base + SCx200_PMR); if (base == 0 @@ -128,34 +126,35 @@ static int __init init_scx200_docflash(void) return -ENOMEM; } } else { + pci_dev_put(bridge); for (u = size; u > 1; u >>= 1) ; if (u != 1) { printk(KERN_ERR NAME ": invalid size for flash mapping\n"); return -EINVAL; } - + if (width != 8 && width != 16) { printk(KERN_ERR NAME ": invalid bus width for flash mapping\n"); return -EINVAL; } - - if (allocate_resource(&iomem_resource, &docmem, + + if (allocate_resource(&iomem_resource, &docmem, size, - 0xc0000000, 0xffffffff, + 0xc0000000, 0xffffffff, size, NULL, NULL)) { printk(KERN_ERR NAME ": unable to allocate memory for flash mapping\n"); return -ENOMEM; } - + ctrl = 0x07000000 | ((size-1) >> 13); printk(KERN_INFO "DOCCS BASE=0x%08lx, CTRL=0x%08lx\n", (long)docmem.start, (long)ctrl); - + pci_write_config_dword(bridge, SCx200_DOCCS_BASE, docmem.start); pci_write_config_dword(bridge, SCx200_DOCCS_CTRL, ctrl); pmr = inl(scx200_cb_base + SCx200_PMR); - + if (width == 8) { pmr &= ~(1<<6); } else { @@ -163,9 +162,9 @@ static int __init init_scx200_docflash(void) } outl(pmr, scx200_cb_base + SCx200_PMR); } - - printk(KERN_INFO NAME ": DOCCS mapped at 0x%lx-0x%lx, width %d\n", - docmem.start, docmem.end, width); + + printk(KERN_INFO NAME ": DOCCS mapped at %pR, width %d\n", + &docmem, width); scx200_docflash_map.size = size; if (width == 8) @@ -196,24 +195,17 @@ static int __init init_scx200_docflash(void) mymtd->owner = THIS_MODULE; -#ifdef CONFIG_MTD_PARTITIONS partition_info[3].offset = mymtd->size-partition_info[3].size; partition_info[2].size = partition_info[3].offset-partition_info[2].offset; - add_mtd_partitions(mymtd, partition_info, NUM_PARTITIONS); -#else - add_mtd_device(mymtd); -#endif + mtd_device_register(mymtd, partition_info, NUM_PARTITIONS); + return 0; } static void __exit cleanup_scx200_docflash(void) { if (mymtd) { -#ifdef CONFIG_MTD_PARTITIONS - del_mtd_partitions(mymtd); -#else - del_mtd_device(mymtd); -#endif + mtd_device_unregister(mymtd); map_destroy(mymtd); } if (scx200_docflash_map.virt) { |