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m68k: amiga - Zorro host bridge platform device conversion
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Geert Uytterhoeven
parent
bf54a2b3c0
commit
0d305464ae
@ -2,6 +2,6 @@
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# Makefile for Linux arch/m68k/amiga source directory
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#
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obj-y := config.o amiints.o cia.o chipram.o amisound.o
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obj-y := config.o amiints.o cia.o chipram.o amisound.o platform.o
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obj-$(CONFIG_AMIGA_PCMCIA) += pcmcia.o
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58
arch/m68k/amiga/platform.c
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58
arch/m68k/amiga/platform.c
Normal file
@ -0,0 +1,58 @@
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/*
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* Copyright (C) 2007-2009 Geert Uytterhoeven
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive
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* for more details.
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*/
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/zorro.h>
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#include <asm/amigahw.h>
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#ifdef CONFIG_ZORRO
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static const struct resource zorro_resources[] __initconst = {
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/* Zorro II regions (on Zorro II/III) */
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{
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.name = "Zorro II exp",
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.start = 0x00e80000,
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.end = 0x00efffff,
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.flags = IORESOURCE_MEM,
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}, {
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.name = "Zorro II mem",
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.start = 0x00200000,
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.end = 0x009fffff,
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.flags = IORESOURCE_MEM,
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},
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/* Zorro III regions (on Zorro III only) */
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{
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.name = "Zorro III exp",
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.start = 0xff000000,
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.end = 0xffffffff,
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.flags = IORESOURCE_MEM,
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}, {
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.name = "Zorro III cfg",
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.start = 0x40000000,
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.end = 0x7fffffff,
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.flags = IORESOURCE_MEM,
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}
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};
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static int __init amiga_init_bus(void)
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{
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if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(ZORRO))
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return -ENODEV;
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platform_device_register_simple("amiga-zorro", -1, zorro_resources,
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AMIGAHW_PRESENT(ZORRO3) ? 4 : 2);
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return 0;
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}
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subsys_initcall(amiga_init_bus);
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#endif /* CONFIG_ZORRO */
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@ -97,7 +97,7 @@ static void zorro_seq_stop(struct seq_file *m, void *v)
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static int zorro_seq_show(struct seq_file *m, void *v)
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{
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u_int slot = *(loff_t *)v;
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unsigned int slot = *(loff_t *)v;
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struct zorro_dev *z = &zorro_autocon[slot];
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seq_printf(m, "%02x\t%08x\t%08lx\t%08lx\t%02x\n", slot, z->id,
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@ -129,7 +129,7 @@ static const struct file_operations zorro_devices_proc_fops = {
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static struct proc_dir_entry *proc_bus_zorro_dir;
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static int __init zorro_proc_attach_device(u_int slot)
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static int __init zorro_proc_attach_device(unsigned int slot)
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{
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struct proc_dir_entry *entry;
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char name[4];
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@ -146,7 +146,7 @@ static int __init zorro_proc_attach_device(u_int slot)
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static int __init zorro_proc_init(void)
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{
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u_int slot;
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unsigned int slot;
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if (MACH_IS_AMIGA && AMIGAHW_PRESENT(ZORRO)) {
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proc_bus_zorro_dir = proc_mkdir("bus/zorro", NULL);
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@ -15,6 +15,8 @@
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#include <linux/zorro.h>
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#include <linux/bitops.h>
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#include <linux/string.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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#include <asm/setup.h>
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#include <asm/amigahw.h>
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@ -26,24 +28,17 @@
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* Zorro Expansion Devices
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*/
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u_int zorro_num_autocon = 0;
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unsigned int zorro_num_autocon;
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struct zorro_dev zorro_autocon[ZORRO_NUM_AUTO];
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/*
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* Single Zorro bus
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* Zorro bus
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*/
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struct zorro_bus zorro_bus = {\
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.resources = {
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/* Zorro II regions (on Zorro II/III) */
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{ .name = "Zorro II exp", .start = 0x00e80000, .end = 0x00efffff },
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{ .name = "Zorro II mem", .start = 0x00200000, .end = 0x009fffff },
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/* Zorro III regions (on Zorro III only) */
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{ .name = "Zorro III exp", .start = 0xff000000, .end = 0xffffffff },
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{ .name = "Zorro III cfg", .start = 0x40000000, .end = 0x7fffffff }
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},
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.name = "Zorro bus"
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struct zorro_bus {
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struct list_head devices; /* list of devices on this bus */
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struct device dev;
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};
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@ -53,18 +48,19 @@ struct zorro_bus zorro_bus = {\
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struct zorro_dev *zorro_find_device(zorro_id id, struct zorro_dev *from)
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{
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struct zorro_dev *z;
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struct zorro_dev *z;
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if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(ZORRO))
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if (!zorro_num_autocon)
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return NULL;
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for (z = from ? from+1 : &zorro_autocon[0];
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z < zorro_autocon+zorro_num_autocon;
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z++)
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if (id == ZORRO_WILDCARD || id == z->id)
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return z;
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return NULL;
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for (z = from ? from+1 : &zorro_autocon[0];
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z < zorro_autocon+zorro_num_autocon;
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z++)
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if (id == ZORRO_WILDCARD || id == z->id)
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return z;
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return NULL;
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}
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EXPORT_SYMBOL(zorro_find_device);
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/*
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@ -83,121 +79,138 @@ struct zorro_dev *zorro_find_device(zorro_id id, struct zorro_dev *from)
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*/
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DECLARE_BITMAP(zorro_unused_z2ram, 128);
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EXPORT_SYMBOL(zorro_unused_z2ram);
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static void __init mark_region(unsigned long start, unsigned long end,
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int flag)
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{
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if (flag)
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start += Z2RAM_CHUNKMASK;
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else
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end += Z2RAM_CHUNKMASK;
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start &= ~Z2RAM_CHUNKMASK;
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end &= ~Z2RAM_CHUNKMASK;
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if (end <= Z2RAM_START || start >= Z2RAM_END)
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return;
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start = start < Z2RAM_START ? 0x00000000 : start-Z2RAM_START;
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end = end > Z2RAM_END ? Z2RAM_SIZE : end-Z2RAM_START;
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while (start < end) {
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u32 chunk = start>>Z2RAM_CHUNKSHIFT;
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if (flag)
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set_bit(chunk, zorro_unused_z2ram);
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start += Z2RAM_CHUNKMASK;
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else
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clear_bit(chunk, zorro_unused_z2ram);
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start += Z2RAM_CHUNKSIZE;
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}
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}
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end += Z2RAM_CHUNKMASK;
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start &= ~Z2RAM_CHUNKMASK;
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end &= ~Z2RAM_CHUNKMASK;
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static struct resource __init *zorro_find_parent_resource(struct zorro_dev *z)
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{
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int i;
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for (i = 0; i < zorro_bus.num_resources; i++)
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if (zorro_resource_start(z) >= zorro_bus.resources[i].start &&
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zorro_resource_end(z) <= zorro_bus.resources[i].end)
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return &zorro_bus.resources[i];
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return &iomem_resource;
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}
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/*
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* Initialization
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*/
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static int __init zorro_init(void)
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{
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struct zorro_dev *z;
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unsigned int i;
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int error;
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if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(ZORRO))
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return 0;
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pr_info("Zorro: Probing AutoConfig expansion devices: %d device%s\n",
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zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s");
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/* Initialize the Zorro bus */
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INIT_LIST_HEAD(&zorro_bus.devices);
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dev_set_name(&zorro_bus.dev, "zorro");
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error = device_register(&zorro_bus.dev);
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if (error) {
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pr_err("Zorro: Error registering zorro_bus\n");
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return error;
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}
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/* Request the resources */
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zorro_bus.num_resources = AMIGAHW_PRESENT(ZORRO3) ? 4 : 2;
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for (i = 0; i < zorro_bus.num_resources; i++)
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request_resource(&iomem_resource, &zorro_bus.resources[i]);
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/* Register all devices */
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for (i = 0; i < zorro_num_autocon; i++) {
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z = &zorro_autocon[i];
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z->id = (z->rom.er_Manufacturer<<16) | (z->rom.er_Product<<8);
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if (z->id == ZORRO_PROD_GVP_EPC_BASE) {
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/* GVP quirk */
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unsigned long magic = zorro_resource_start(z)+0x8000;
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z->id |= *(u16 *)ZTWO_VADDR(magic) & GVP_PRODMASK;
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if (end <= Z2RAM_START || start >= Z2RAM_END)
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return;
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start = start < Z2RAM_START ? 0x00000000 : start-Z2RAM_START;
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end = end > Z2RAM_END ? Z2RAM_SIZE : end-Z2RAM_START;
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while (start < end) {
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u32 chunk = start>>Z2RAM_CHUNKSHIFT;
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if (flag)
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set_bit(chunk, zorro_unused_z2ram);
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else
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clear_bit(chunk, zorro_unused_z2ram);
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start += Z2RAM_CHUNKSIZE;
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}
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sprintf(z->name, "Zorro device %08x", z->id);
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zorro_name_device(z);
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z->resource.name = z->name;
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if (request_resource(zorro_find_parent_resource(z), &z->resource))
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pr_err("Zorro: Address space collision on device %s %pR\n",
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z->name, &z->resource);
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dev_set_name(&z->dev, "%02x", i);
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z->dev.parent = &zorro_bus.dev;
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z->dev.bus = &zorro_bus_type;
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error = device_register(&z->dev);
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}
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static struct resource __init *zorro_find_parent_resource(
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struct platform_device *bridge, struct zorro_dev *z)
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{
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int i;
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for (i = 0; i < bridge->num_resources; i++) {
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struct resource *r = &bridge->resource[i];
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if (zorro_resource_start(z) >= r->start &&
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zorro_resource_end(z) <= r->end)
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return r;
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}
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return &iomem_resource;
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}
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static int __init amiga_zorro_probe(struct platform_device *pdev)
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{
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struct zorro_bus *bus;
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struct zorro_dev *z;
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struct resource *r;
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unsigned int i;
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int error;
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/* Initialize the Zorro bus */
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bus = kzalloc(sizeof(*bus), GFP_KERNEL);
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if (!bus)
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return -ENOMEM;
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INIT_LIST_HEAD(&bus->devices);
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bus->dev.parent = &pdev->dev;
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dev_set_name(&bus->dev, "zorro");
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error = device_register(&bus->dev);
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if (error) {
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pr_err("Zorro: Error registering device %s\n", z->name);
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continue;
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pr_err("Zorro: Error registering zorro_bus\n");
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kfree(bus);
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return error;
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}
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error = zorro_create_sysfs_dev_files(z);
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if (error)
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dev_err(&z->dev, "Error creating sysfs files\n");
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}
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platform_set_drvdata(pdev, bus);
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/* Mark all available Zorro II memory */
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zorro_for_each_dev(z) {
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if (z->rom.er_Type & ERTF_MEMLIST)
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mark_region(zorro_resource_start(z), zorro_resource_end(z)+1, 1);
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}
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/* Register all devices */
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pr_info("Zorro: Probing AutoConfig expansion devices: %u device%s\n",
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zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s");
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/* Unmark all used Zorro II memory */
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for (i = 0; i < m68k_num_memory; i++)
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if (m68k_memory[i].addr < 16*1024*1024)
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mark_region(m68k_memory[i].addr,
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m68k_memory[i].addr+m68k_memory[i].size, 0);
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for (i = 0; i < zorro_num_autocon; i++) {
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z = &zorro_autocon[i];
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z->id = (z->rom.er_Manufacturer<<16) | (z->rom.er_Product<<8);
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if (z->id == ZORRO_PROD_GVP_EPC_BASE) {
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/* GVP quirk */
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unsigned long magic = zorro_resource_start(z)+0x8000;
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z->id |= *(u16 *)ZTWO_VADDR(magic) & GVP_PRODMASK;
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}
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sprintf(z->name, "Zorro device %08x", z->id);
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zorro_name_device(z);
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z->resource.name = z->name;
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r = zorro_find_parent_resource(pdev, z);
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error = request_resource(r, &z->resource);
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if (error)
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dev_err(&bus->dev,
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"Address space collision on device %s %pR\n",
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z->name, &z->resource);
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dev_set_name(&z->dev, "%02x", i);
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z->dev.parent = &bus->dev;
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z->dev.bus = &zorro_bus_type;
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error = device_register(&z->dev);
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if (error) {
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dev_err(&bus->dev, "Error registering device %s\n",
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z->name);
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continue;
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}
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error = zorro_create_sysfs_dev_files(z);
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if (error)
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dev_err(&z->dev, "Error creating sysfs files\n");
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}
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return 0;
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/* Mark all available Zorro II memory */
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zorro_for_each_dev(z) {
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if (z->rom.er_Type & ERTF_MEMLIST)
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mark_region(zorro_resource_start(z),
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zorro_resource_end(z)+1, 1);
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}
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/* Unmark all used Zorro II memory */
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for (i = 0; i < m68k_num_memory; i++)
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if (m68k_memory[i].addr < 16*1024*1024)
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mark_region(m68k_memory[i].addr,
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m68k_memory[i].addr+m68k_memory[i].size,
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0);
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return 0;
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}
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subsys_initcall(zorro_init);
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static struct platform_driver amiga_zorro_driver = {
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.driver = {
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.name = "amiga-zorro",
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.owner = THIS_MODULE,
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},
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};
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EXPORT_SYMBOL(zorro_find_device);
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EXPORT_SYMBOL(zorro_unused_z2ram);
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static int __init amiga_zorro_init(void)
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{
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return platform_driver_probe(&amiga_zorro_driver, amiga_zorro_probe);
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}
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module_init(amiga_zorro_init);
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MODULE_LICENSE("GPL");
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@ -141,15 +141,6 @@ struct zorro_dev {
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* Zorro bus
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*/
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struct zorro_bus {
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struct list_head devices; /* list of devices on this bus */
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unsigned int num_resources; /* number of resources */
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struct resource resources[4]; /* address space routed to this bus */
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struct device dev;
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char name[10];
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};
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extern struct zorro_bus zorro_bus; /* single Zorro bus */
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extern struct bus_type zorro_bus_type;
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