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authorDavid S. Miller <davem@davemloft.net>2008-08-30 00:36:11 -0700
committerDavid S. Miller <davem@davemloft.net>2008-08-30 00:36:11 -0700
commit356d164757310cd822d71da2027d50ec39798b7f (patch)
tree9a4f53bf8a27b66cf654a2fc751e0d23520ca330 /arch/sparc
parent75081322c9d0d56f8880178f9fcc93778bcf0220 (diff)
sparc: Kill EBUS driver layer.
All that remains is the EBUS DMA programming library for sparc64. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/include/asm/ebus.h8
-rw-r--r--arch/sparc/include/asm/ebus_32.h99
-rw-r--r--arch/sparc/include/asm/ebus_64.h64
-rw-r--r--arch/sparc/kernel/Makefile1
-rw-r--r--arch/sparc/kernel/ebus.c392
-rw-r--r--arch/sparc/kernel/pcic.c8
-rw-r--r--arch/sparc/kernel/sparc_ksyms.c4
7 files changed, 1 insertions, 575 deletions
diff --git a/arch/sparc/include/asm/ebus.h b/arch/sparc/include/asm/ebus.h
deleted file mode 100644
index 83a6d16c22e6..000000000000
--- a/arch/sparc/include/asm/ebus.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef ___ASM_SPARC_EBUS_H
-#define ___ASM_SPARC_EBUS_H
-#if defined(__sparc__) && defined(__arch64__)
-#include <asm/ebus_64.h>
-#else
-#include <asm/ebus_32.h>
-#endif
-#endif
diff --git a/arch/sparc/include/asm/ebus_32.h b/arch/sparc/include/asm/ebus_32.h
deleted file mode 100644
index f91f0b267ce1..000000000000
--- a/arch/sparc/include/asm/ebus_32.h
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * ebus.h: PCI to Ebus pseudo driver software state.
- *
- * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be)
- *
- * Adopted for sparc by V. Roganov and G. Raiko.
- */
-
-#ifndef __SPARC_EBUS_H
-#define __SPARC_EBUS_H
-
-#ifndef _LINUX_IOPORT_H
-#include <linux/ioport.h>
-#endif
-#include <linux/of_device.h>
-#include <asm/oplib.h>
-#include <asm/prom.h>
-
-struct linux_ebus_child {
- struct linux_ebus_child *next;
- struct linux_ebus_device *parent;
- struct linux_ebus *bus;
- struct device_node *prom_node;
- struct resource resource[PROMREG_MAX];
- int num_addrs;
- unsigned int irqs[PROMINTR_MAX];
- int num_irqs;
-};
-
-struct linux_ebus_device {
- struct of_device ofdev;
- struct linux_ebus_device *next;
- struct linux_ebus_child *children;
- struct linux_ebus *bus;
- struct device_node *prom_node;
- struct resource resource[PROMREG_MAX];
- int num_addrs;
- unsigned int irqs[PROMINTR_MAX];
- int num_irqs;
-};
-#define to_ebus_device(d) container_of(d, struct linux_ebus_device, ofdev.dev)
-
-struct linux_ebus {
- struct of_device ofdev;
- struct linux_ebus *next;
- struct linux_ebus_device *devices;
- struct linux_pbm_info *parent;
- struct pci_dev *self;
- struct device_node *prom_node;
-};
-#define to_ebus(d) container_of(d, struct linux_ebus, ofdev.dev)
-
-struct linux_ebus_dma {
- unsigned int dcsr;
- unsigned int dacr;
- unsigned int dbcr;
-};
-
-#define EBUS_DCSR_INT_PEND 0x00000001
-#define EBUS_DCSR_ERR_PEND 0x00000002
-#define EBUS_DCSR_DRAIN 0x00000004
-#define EBUS_DCSR_INT_EN 0x00000010
-#define EBUS_DCSR_RESET 0x00000080
-#define EBUS_DCSR_WRITE 0x00000100
-#define EBUS_DCSR_EN_DMA 0x00000200
-#define EBUS_DCSR_CYC_PEND 0x00000400
-#define EBUS_DCSR_DIAG_RD_DONE 0x00000800
-#define EBUS_DCSR_DIAG_WR_DONE 0x00001000
-#define EBUS_DCSR_EN_CNT 0x00002000
-#define EBUS_DCSR_TC 0x00004000
-#define EBUS_DCSR_DIS_CSR_DRN 0x00010000
-#define EBUS_DCSR_BURST_SZ_MASK 0x000c0000
-#define EBUS_DCSR_BURST_SZ_1 0x00080000
-#define EBUS_DCSR_BURST_SZ_4 0x00000000
-#define EBUS_DCSR_BURST_SZ_8 0x00040000
-#define EBUS_DCSR_BURST_SZ_16 0x000c0000
-#define EBUS_DCSR_DIAG_EN 0x00100000
-#define EBUS_DCSR_DIS_ERR_PEND 0x00400000
-#define EBUS_DCSR_TCI_DIS 0x00800000
-#define EBUS_DCSR_EN_NEXT 0x01000000
-#define EBUS_DCSR_DMA_ON 0x02000000
-#define EBUS_DCSR_A_LOADED 0x04000000
-#define EBUS_DCSR_NA_LOADED 0x08000000
-#define EBUS_DCSR_DEV_ID_MASK 0xf0000000
-
-extern struct linux_ebus *ebus_chain;
-
-extern void ebus_init(void);
-
-#define for_each_ebus(bus) \
- for((bus) = ebus_chain; (bus); (bus) = (bus)->next)
-
-#define for_each_ebusdev(dev, bus) \
- for((dev) = (bus)->devices; (dev); (dev) = (dev)->next)
-
-#define for_each_edevchild(dev, child) \
- for((child) = (dev)->children; (child); (child) = (child)->next)
-
-#endif /* !(__SPARC_EBUS_H) */
diff --git a/arch/sparc/include/asm/ebus_64.h b/arch/sparc/include/asm/ebus_64.h
deleted file mode 100644
index cd102b8e28d3..000000000000
--- a/arch/sparc/include/asm/ebus_64.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * ebus.h: PCI to Ebus pseudo driver software state.
- *
- * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be)
- * Copyright (C) 1999 David S. Miller (davem@redhat.com)
- */
-
-#ifndef __SPARC64_EBUS_H
-#define __SPARC64_EBUS_H
-
-#include <linux/of_device.h>
-
-#include <asm/oplib.h>
-#include <asm/prom.h>
-
-struct linux_ebus_child {
- struct linux_ebus_child *next;
- struct linux_ebus_device *parent;
- struct linux_ebus *bus;
- struct device_node *prom_node;
- struct resource resource[PROMREG_MAX];
- int num_addrs;
- unsigned int irqs[PROMINTR_MAX];
- int num_irqs;
-};
-
-struct linux_ebus_device {
- struct of_device ofdev;
- struct linux_ebus_device *next;
- struct linux_ebus_child *children;
- struct linux_ebus *bus;
- struct device_node *prom_node;
- struct resource resource[PROMREG_MAX];
- int num_addrs;
- unsigned int irqs[PROMINTR_MAX];
- int num_irqs;
-};
-#define to_ebus_device(d) container_of(d, struct linux_ebus_device, ofdev.dev)
-
-struct linux_ebus {
- struct of_device ofdev;
- struct linux_ebus *next;
- struct linux_ebus_device *devices;
- struct pci_dev *self;
- int index;
- int is_rio;
- struct device_node *prom_node;
-};
-#define to_ebus(d) container_of(d, struct linux_ebus, ofdev.dev)
-
-extern struct linux_ebus *ebus_chain;
-
-extern void ebus_init(void);
-
-#define for_each_ebus(bus) \
- for((bus) = ebus_chain; (bus); (bus) = (bus)->next)
-
-#define for_each_ebusdev(dev, bus) \
- for((dev) = (bus)->devices; (dev); (dev) = (dev)->next)
-
-#define for_each_edevchild(dev, child) \
- for((child) = (dev)->children; (child); (child) = (child)->next)
-
-#endif /* !(__SPARC64_EBUS_H) */
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index eaf7cf4296ab..a430231647e6 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -21,7 +21,6 @@ obj-$(CONFIG_PCI) += pcic.o
obj-$(CONFIG_SUN4) += sun4setup.o
obj-$(CONFIG_SMP) += trampoline.o smp.o sun4m_smp.o sun4d_smp.o
obj-$(CONFIG_SUN_AUXIO) += auxio.o
-obj-$(CONFIG_PCI) += ebus.o
obj-$(CONFIG_SUN_PM) += apc.o pmc.o
obj-$(CONFIG_MODULES) += module.o sparc_ksyms.o
obj-$(CONFIG_SPARC_LED) += led.o
diff --git a/arch/sparc/kernel/ebus.c b/arch/sparc/kernel/ebus.c
deleted file mode 100644
index 7e9397fc6081..000000000000
--- a/arch/sparc/kernel/ebus.c
+++ /dev/null
@@ -1,392 +0,0 @@
-/*
- * ebus.c: PCI to EBus bridge device.
- *
- * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be)
- *
- * Adopted for sparc by V. Roganov and G. Raiko.
- * Fixes for different platforms by Pete Zaitcev.
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-
-#include <asm/system.h>
-#include <asm/page.h>
-#include <asm/pbm.h>
-#include <asm/ebus.h>
-#include <asm/io.h>
-#include <asm/oplib.h>
-#include <asm/prom.h>
-
-struct linux_ebus *ebus_chain = NULL;
-
-/* We are together with pcic.c under CONFIG_PCI. */
-extern unsigned int pcic_pin_to_irq(unsigned int, const char *name);
-
-/*
- * IRQ Blacklist
- * Here we list PROMs and systems that are known to supply crap as IRQ numbers.
- */
-struct ebus_device_irq {
- char *name;
- unsigned int pin;
-};
-
-struct ebus_system_entry {
- char *esname;
- struct ebus_device_irq *ipt;
-};
-
-static struct ebus_device_irq je1_1[] = {
- { "8042", 3 },
- { "SUNW,CS4231", 0 },
- { "parallel", 0 },
- { "se", 2 },
- { NULL, 0 }
-};
-
-/*
- * Gleb's JE1 supplied reasonable pin numbers, but mine did not (OBP 2.32).
- * Blacklist the sucker... Note that Gleb's system will work.
- */
-static struct ebus_system_entry ebus_blacklist[] = {
- { "SUNW,JavaEngine1", je1_1 },
- { NULL, NULL }
-};
-
-static struct ebus_device_irq *ebus_blackp = NULL;
-
-/*
- */
-static inline unsigned long ebus_alloc(size_t size)
-{
- return (unsigned long)kmalloc(size, GFP_ATOMIC);
-}
-
-/*
- */
-static int __init ebus_blacklist_irq(const char *name)
-{
- struct ebus_device_irq *dp;
-
- if ((dp = ebus_blackp) != NULL) {
- for (; dp->name != NULL; dp++) {
- if (strcmp(name, dp->name) == 0) {
- return pcic_pin_to_irq(dp->pin, name);
- }
- }
- }
- return 0;
-}
-
-static void __init fill_ebus_child(struct device_node *dp,
- struct linux_ebus_child *dev)
-{
- const int *regs;
- const int *irqs;
- int i, len;
-
- dev->prom_node = dp;
- regs = of_get_property(dp, "reg", &len);
- if (!regs)
- len = 0;
- dev->num_addrs = len / sizeof(regs[0]);
-
- for (i = 0; i < dev->num_addrs; i++) {
- if (regs[i] >= dev->parent->num_addrs) {
- prom_printf("UGH: property for %s was %d, need < %d\n",
- dev->prom_node->name, len,
- dev->parent->num_addrs);
- panic(__func__);
- }
-
- /* XXX resource */
- dev->resource[i].start =
- dev->parent->resource[regs[i]].start;
- }
-
- for (i = 0; i < PROMINTR_MAX; i++)
- dev->irqs[i] = PCI_IRQ_NONE;
-
- if ((dev->irqs[0] = ebus_blacklist_irq(dev->prom_node->name)) != 0) {
- dev->num_irqs = 1;
- } else {
- irqs = of_get_property(dp, "interrupts", &len);
- if (!irqs) {
- dev->num_irqs = 0;
- dev->irqs[0] = 0;
- if (dev->parent->num_irqs != 0) {
- dev->num_irqs = 1;
- dev->irqs[0] = dev->parent->irqs[0];
- }
- } else {
- dev->num_irqs = len / sizeof(irqs[0]);
- if (irqs[0] == 0 || irqs[0] >= 8) {
- /*
- * XXX Zero is a valid pin number...
- * This works as long as Ebus is not wired
- * to INTA#.
- */
- printk("EBUS: %s got bad irq %d from PROM\n",
- dev->prom_node->name, irqs[0]);
- dev->num_irqs = 0;
- dev->irqs[0] = 0;
- } else {
- dev->irqs[0] =
- pcic_pin_to_irq(irqs[0],
- dev->prom_node->name);
- }
- }
- }
-}
-
-static void __init fill_ebus_device(struct device_node *dp,
- struct linux_ebus_device *dev)
-{
- const struct linux_prom_registers *regs;
- struct linux_ebus_child *child;
- struct dev_archdata *sd;
- const int *irqs;
- int i, n, len;
- unsigned long baseaddr;
-
- dev->prom_node = dp;
-
- regs = of_get_property(dp, "reg", &len);
- if (!regs)
- len = 0;
- if (len % sizeof(struct linux_prom_registers)) {
- prom_printf("UGH: proplen for %s was %d, need multiple of %d\n",
- dev->prom_node->name, len,
- (int)sizeof(struct linux_prom_registers));
- panic(__func__);
- }
- dev->num_addrs = len / sizeof(struct linux_prom_registers);
-
- for (i = 0; i < dev->num_addrs; i++) {
- /*
- * XXX Collect JE-1 PROM
- *
- * Example - JS-E with 3.11:
- * /ebus
- * regs
- * 0x00000000, 0x0, 0x00000000, 0x0, 0x00000000,
- * 0x82000010, 0x0, 0xf0000000, 0x0, 0x01000000,
- * 0x82000014, 0x0, 0x38800000, 0x0, 0x00800000,
- * ranges
- * 0x00, 0x00000000, 0x02000010, 0x0, 0x0, 0x01000000,
- * 0x01, 0x01000000, 0x02000014, 0x0, 0x0, 0x00800000,
- * /ebus/8042
- * regs
- * 0x00000001, 0x00300060, 0x00000008,
- * 0x00000001, 0x00300060, 0x00000008,
- */
- n = regs[i].which_io;
- if (n >= 4) {
- /* XXX This is copied from old JE-1 by Gleb. */
- n = (regs[i].which_io - 0x10) >> 2;
- } else {
- ;
- }
-
-/*
- * XXX Now as we have regions, why don't we make an on-demand allocation...
- */
- dev->resource[i].start = 0;
- if ((baseaddr = dev->bus->self->resource[n].start +
- regs[i].phys_addr) != 0) {
- /* dev->resource[i].name = dev->prom_name; */
- if ((baseaddr = (unsigned long) ioremap(baseaddr,
- regs[i].reg_size)) == 0) {
- panic("ebus: unable to remap dev %s",
- dev->prom_node->name);
- }
- }
- dev->resource[i].start = baseaddr; /* XXX Unaligned */
- }
-
- for (i = 0; i < PROMINTR_MAX; i++)
- dev->irqs[i] = PCI_IRQ_NONE;
-
- if ((dev->irqs[0] = ebus_blacklist_irq(dev->prom_node->name)) != 0) {
- dev->num_irqs = 1;
- } else {
- irqs = of_get_property(dp, "interrupts", &len);
- if (!irqs) {
- dev->num_irqs = 0;
- if ((dev->irqs[0] = dev->bus->self->irq) != 0) {
- dev->num_irqs = 1;
-/* P3 */ /* printk("EBUS: child %s irq %d from parent\n", dev->prom_name, dev->irqs[0]); */
- }
- } else {
- dev->num_irqs = 1; /* dev->num_irqs = len / sizeof(irqs[0]); */
- if (irqs[0] == 0 || irqs[0] >= 8) {
- /* See above for the parent. XXX */
- printk("EBUS: %s got bad irq %d from PROM\n",
- dev->prom_node->name, irqs[0]);
- dev->num_irqs = 0;
- dev->irqs[0] = 0;
- } else {
- dev->irqs[0] =
- pcic_pin_to_irq(irqs[0],
- dev->prom_node->name);
- }
- }
- }
-
- sd = &dev->ofdev.dev.archdata;
- sd->prom_node = dp;
- sd->op = &dev->ofdev;
- sd->iommu = dev->bus->ofdev.dev.parent->archdata.iommu;
-
- dev->ofdev.node = dp;
- dev->ofdev.dev.parent = &dev->bus->ofdev.dev;
- dev->ofdev.dev.bus = &ebus_bus_type;
- sprintf(dev->ofdev.dev.bus_id, "ebus[%08x]", dp->node);
-
- /* Register with core */
- if (of_device_register(&dev->ofdev) != 0)
- printk(KERN_DEBUG "ebus: device registration error for %s!\n",
- dp->path_component_name);
-
- if ((dp = dp->child) != NULL) {
- dev->children = (struct linux_ebus_child *)
- ebus_alloc(sizeof(struct linux_ebus_child));
-
- child = dev->children;
- child->next = NULL;
- child->parent = dev;
- child->bus = dev->bus;
- fill_ebus_child(dp, child);
-
- while ((dp = dp->sibling) != NULL) {
- child->next = (struct linux_ebus_child *)
- ebus_alloc(sizeof(struct linux_ebus_child));
-
- child = child->next;
- child->next = NULL;
- child->parent = dev;
- child->bus = dev->bus;
- fill_ebus_child(dp, child);
- }
- }
-}
-
-void __init ebus_init(void)
-{
- const struct linux_prom_pci_registers *regs;
- struct linux_pbm_info *pbm;
- struct linux_ebus_device *dev;
- struct linux_ebus *ebus;
- struct ebus_system_entry *sp;
- struct pci_dev *pdev;
- struct pcidev_cookie *cookie;
- struct device_node *dp;
- struct resource *p;
- unsigned short pci_command;
- int len, reg, nreg;
- int num_ebus = 0;
-
- dp = of_find_node_by_path("/");
- for (sp = ebus_blacklist; sp->esname != NULL; sp++) {
- if (strcmp(dp->name, sp->esname) == 0) {
- ebus_blackp = sp->ipt;
- break;
- }
- }
-
- pdev = pci_get_device(PCI_VENDOR_ID_SUN, PCI_DEVICE_ID_SUN_EBUS, NULL);
- if (!pdev)
- return;
-
- cookie = pdev->sysdata;
- dp = cookie->prom_node;
-
- ebus_chain = ebus = (struct linux_ebus *)
- ebus_alloc(sizeof(struct linux_ebus));
- ebus->next = NULL;
-
- while (dp) {
- struct device_node *nd;
-
- ebus->prom_node = dp;
- ebus->self = pdev;
- ebus->parent = pbm = cookie->pbm;
-
- /* Enable BUS Master. */
- pci_read_config_word(pdev, PCI_COMMAND, &pci_command);
- pci_command |= PCI_COMMAND_MASTER;
- pci_write_config_word(pdev, PCI_COMMAND, pci_command);
-
- regs = of_get_property(dp, "reg", &len);
- if (!regs) {
- prom_printf("%s: can't find reg property\n",
- __func__);
- prom_halt();
- }
- nreg = len / sizeof(struct linux_prom_pci_registers);
-
- p = &ebus->self->resource[0];
- for (reg = 0; reg < nreg; reg++) {
- if (!(regs[reg].which_io & 0x03000000))
- continue;
-
- (p++)->start = regs[reg].phys_lo;
- }
-
- ebus->ofdev.node = dp;
- ebus->ofdev.dev.parent = &pdev->dev;
- ebus->ofdev.dev.bus = &ebus_bus_type;
- sprintf(ebus->ofdev.dev.bus_id, "ebus%d", num_ebus);
-
- /* Register with core */
- if (of_device_register(&ebus->ofdev) != 0)
- printk(KERN_DEBUG "ebus: device registration error for %s!\n",
- dp->path_component_name);
-
-
- nd = dp->child;
- if (!nd)
- goto next_ebus;
-
- ebus->devices = (struct linux_ebus_device *)
- ebus_alloc(sizeof(struct linux_ebus_device));
-
- dev = ebus->devices;
- dev->next = NULL;
- dev->children = NULL;
- dev->bus = ebus;
- fill_ebus_device(nd, dev);
-
- while ((nd = nd->sibling) != NULL) {
- dev->next = (struct linux_ebus_device *)
- ebus_alloc(sizeof(struct linux_ebus_device));
-
- dev = dev->next;
- dev->next = NULL;
- dev->children = NULL;
- dev->bus = ebus;
- fill_ebus_device(nd, dev);
- }
-
- next_ebus:
- pdev = pci_get_device(PCI_VENDOR_ID_SUN,
- PCI_DEVICE_ID_SUN_EBUS, pdev);
- if (!pdev)
- break;
-
- cookie = pdev->sysdata;
- dp = cookie->prom_node;
-
- ebus->next = (struct linux_ebus *)
- ebus_alloc(sizeof(struct linux_ebus));
- ebus = ebus->next;
- ebus->next = NULL;
- ++num_ebus;
- }
- if (pdev)
- pci_dev_put(pdev);
-}
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index 9a0aa4ec5793..e5950b03df13 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -17,7 +17,6 @@
#include <linux/slab.h>
#include <linux/jiffies.h>
-#include <asm/ebus.h>
#include <asm/swift.h> /* for cache flushing. */
#include <asm/io.h>
@@ -429,7 +428,6 @@ static int __init pcic_init(void)
pcic_pbm_scan_bus(pcic);
- ebus_init();
return 0;
}
@@ -492,10 +490,6 @@ static void pcic_map_pci_device(struct linux_pcic *pcic,
* do ioremap() before accessing PC-style I/O,
* we supply virtual, ready to access address.
*
- * Ebus devices do not come here even if
- * CheerIO makes a similar conversion.
- * See ebus.c for details.
- *
* Note that request_region()
* works for these devices.
*
@@ -676,7 +670,7 @@ void __devinit pcibios_fixup_bus(struct pci_bus *bus)
}
/*
- * pcic_pin_to_irq() is exported to ebus.c.
+ * pcic_pin_to_irq() is exported to bus probing code
*/
unsigned int
pcic_pin_to_irq(unsigned int pin, const char *name)
diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
index 50ec48ddef65..6007ac5a7360 100644
--- a/arch/sparc/kernel/sparc_ksyms.c
+++ b/arch/sparc/kernel/sparc_ksyms.c
@@ -45,9 +45,6 @@
#ifdef CONFIG_SBUS
#include <asm/dma.h>
#endif
-#ifdef CONFIG_PCI
-#include <asm/ebus.h>
-#endif
#include <asm/io-unit.h>
#include <asm/bug.h>
@@ -152,7 +149,6 @@ EXPORT_SYMBOL(BTFIXUP_CALL(pgprot_noncached));
EXPORT_SYMBOL(sbus_set_sbus64);
#endif
#ifdef CONFIG_PCI
-EXPORT_SYMBOL(ebus_chain);
EXPORT_SYMBOL(insb);
EXPORT_SYMBOL(outsb);
EXPORT_SYMBOL(insw);