sparc64: Convert EBUS floppy support to pure OF driver.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 36 insertions, 50 deletions

diff --git a/arch/sparc/include/asm/floppy_64.h b/arch/sparc/include/asm/floppy_64.h
index 8c7a06e88249..36439d67ad71 100644
--- a/arch/sparc/include/asm/floppy_64.h
+++ b/arch/sparc/include/asm/floppy_64.h
@@ -9,19 +9,11 @@
 #ifndef __ASM_SPARC64_FLOPPY_H
 #define __ASM_SPARC64_FLOPPY_H
 
-#include <linux/init.h>
-#include <linux/pci.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
+#include <linux/dma-mapping.h>
 
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/idprom.h>
-#include <asm/oplib.h>
 #include <asm/auxio.h>
-#include <asm/irq.h>
-
 
 /*
  * Define this to enable exchanging drive 0 and 1 if only drive 1 is
@@ -292,13 +284,11 @@ static int sun_fd_eject(int drive)
         return 0;
 }
 
-#ifdef CONFIG_PCI
-#include <asm/ebus.h>
 #include <asm/ebus_dma.h>
 #include <asm/ns87303.h>
 
 static struct ebus_dma_info sun_pci_fd_ebus_dma;
-static struct pci_dev *sun_pci_ebus_dev;
+static struct device *sun_floppy_dev;
 static int sun_pci_broken_drive = -1;
 
 struct sun_pci_dma_op {
@@ -379,7 +369,7 @@ static void sun_pci_fd_enable_dma(void)
         sun_pci_dma_pending.addr = -1U;
 
         sun_pci_dma_current.addr =
-                pci_map_single(sun_pci_ebus_dev,
+                dma_map_single(sun_floppy_dev,
                                sun_pci_dma_current.buf,
                                sun_pci_dma_current.len,
                                sun_pci_dma_current.direction);
@@ -396,7 +386,7 @@ static void sun_pci_fd_disable_dma(void)
 {
         ebus_dma_enable(&sun_pci_fd_ebus_dma, 0);
         if (sun_pci_dma_current.addr != -1U)
-                pci_unmap_single(sun_pci_ebus_dev,
+                dma_unmap_single(sun_floppy_dev,
                                  sun_pci_dma_current.addr,
                                  sun_pci_dma_current.len,
                                  sun_pci_dma_current.direction);
@@ -406,9 +396,9 @@ static void sun_pci_fd_disable_dma(void)
 static void sun_pci_fd_set_dma_mode(int mode)
 {
         if (mode == DMA_MODE_WRITE)
-                sun_pci_dma_pending.direction = PCI_DMA_TODEVICE;
+                sun_pci_dma_pending.direction = DMA_TO_DEVICE;
         else
-                sun_pci_dma_pending.direction = PCI_DMA_FROMDEVICE;
+                sun_pci_dma_pending.direction = DMA_FROM_DEVICE;
 
         ebus_dma_prepare(&sun_pci_fd_ebus_dma, mode != DMA_MODE_WRITE);
 }
@@ -540,24 +530,19 @@ static int sun_pci_fd_test_drive(unsigned long port, int drive)
 #undef MSR
 #undef DOR
 
-#endif /* CONFIG_PCI */
-
-#ifdef CONFIG_PCI
-static int __init ebus_fdthree_p(struct linux_ebus_device *edev)
+static int __init ebus_fdthree_p(struct device_node *dp)
 {
-        if (!strcmp(edev->prom_node->name, "fdthree"))
+        if (!strcmp(dp->name, "fdthree"))
                 return 1;
-        if (!strcmp(edev->prom_node->name, "floppy")) {
+        if (!strcmp(dp->name, "floppy")) {
                 const char *compat;
 
-                compat = of_get_property(edev->prom_node,
-                                         "compatible", NULL);
+                compat = of_get_property(dp, "compatible", NULL);
                 if (compat && !strcmp(compat, "fdthree"))
                         return 1;
         }
         return 0;
 }
-#endif
 
 static unsigned long __init sun_floppy_init(void)
 {
@@ -584,44 +569,45 @@ static unsigned long __init sun_floppy_init(void)
                 floppy_op = op;
                 FLOPPY_IRQ = op->irqs[0];
         } else {
-#ifdef CONFIG_PCI
-                struct linux_ebus *ebus;
-                struct linux_ebus_device *edev = NULL;
-                unsigned long config = 0;
+                struct device_node *ebus_dp;
                 void __iomem *auxio_reg;
                 const char *state_prop;
+                unsigned long config;
 
-                for_each_ebus(ebus) {
-                        for_each_ebusdev(edev, ebus) {
-                                if (ebus_fdthree_p(edev))
-                                        goto ebus_done;
+                dp = NULL;
+                for_each_node_by_name(ebus_dp, "ebus") {
+                        for (dp = ebus_dp->child; dp; dp = dp->sibling) {
+                                if (ebus_fdthree_p(dp))
+                                        goto found_fdthree;
                         }
                 }
-        ebus_done:
-                if (!edev)
+        found_fdthree:
+                if (!dp)
                         return 0;
 
-                op = &edev->ofdev;
+                op = of_find_device_by_node(dp);
+                if (!op)
+                        return 0;
 
                 state_prop = of_get_property(op->node, "status", NULL);
                 if (state_prop && !strncmp(state_prop, "disabled", 8))
                         return 0;
 
-                FLOPPY_IRQ = edev->irqs[0];
+                FLOPPY_IRQ = op->irqs[0];
 
                 /* Make sure the high density bit is set, some systems
                  * (most notably Ultra5/Ultra10) come up with it clear.
                  */
-                auxio_reg = (void __iomem *) edev->resource[2].start;
+                auxio_reg = (void __iomem *) op->resource[2].start;
                 writel(readl(auxio_reg)|0x2, auxio_reg);
 
-                sun_pci_ebus_dev = ebus->self;
+                sun_floppy_dev = &op->dev;
 
                 spin_lock_init(&sun_pci_fd_ebus_dma.lock);
 
                 /* XXX ioremap */
                 sun_pci_fd_ebus_dma.regs = (void __iomem *)
-                        edev->resource[1].start;
+                        op->resource[1].start;
                 if (!sun_pci_fd_ebus_dma.regs)
                         return 0;
 
@@ -635,7 +621,7 @@ static unsigned long __init sun_floppy_init(void)
                         return 0;
 
                 /* XXX ioremap */
-                sun_fdc = (struct sun_flpy_controller *)edev->resource[0].start;
+                sun_fdc = (struct sun_flpy_controller *) op->resource[0].start;
 
                 sun_fdops.fd_inb = sun_pci_fd_inb;
                 sun_fdops.fd_outb = sun_pci_fd_outb;
@@ -672,12 +658,15 @@ static unsigned long __init sun_floppy_init(void)
                 /*
                  * Find NS87303 SuperIO config registers (through ecpp).
                  */
-                for_each_ebus(ebus) {
-                        for_each_ebusdev(edev, ebus) {
-                                if (!strcmp(edev->prom_node->name, "ecpp")) {
-                                        config = edev->resource[1].start;
-                                        goto config_done;
-                                }
+                config = 0;
+                for (dp = ebus_dp->child; dp; dp = dp->sibling) {
+                        if (!strcmp(dp->name, "ecpp")) {
+                                struct of_device *ecpp_op;
+
+                                ecpp_op = of_find_device_by_node(dp);
+                                if (ecpp_op)
+                                        config = ecpp_op->resource[1].start;
+                                goto config_done;
                         }
                 }
         config_done:
@@ -726,9 +715,6 @@ static unsigned long __init sun_floppy_init(void)
 #endif /* PCI_FDC_SWAP_DRIVES */
 
                 return sun_floppy_types[0];
-#else
-                return 0;
-#endif
         }
         prop = of_get_property(op->node, "status", NULL);
         if (prop && !strncmp(state, "disabled", 8))