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sparc64: Convert EBUS floppy support to pure OF driver.

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-08-29 23:26:23 -07:00
parent aae7fb87ec
commit 3ae627a19e
1 changed files with 36 additions and 50 deletions
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84
arch/sparc/include/asm/floppy_64.h
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@ -9,19 +9,11 @@
#ifndef __ASM_SPARC64_FLOPPY_H #ifndef __ASM_SPARC64_FLOPPY_H
#define __ASM_SPARC64_FLOPPY_H #define __ASM_SPARC64_FLOPPY_H
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/of.h> #include <linux/of.h>
#include <linux/of_device.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/auxio.h>
#include <asm/irq.h>
/* /*
* Define this to enable exchanging drive 0 and 1 if only drive 1 is * 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; return 0;
} }
#ifdef CONFIG_PCI
#include <asm/ebus.h>
#include <asm/ebus_dma.h> #include <asm/ebus_dma.h>
#include <asm/ns87303.h> #include <asm/ns87303.h>
static struct ebus_dma_info sun_pci_fd_ebus_dma; 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; static int sun_pci_broken_drive = -1;
struct sun_pci_dma_op { 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_pending.addr = -1U;
sun_pci_dma_current.addr = 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.buf,
sun_pci_dma_current.len, sun_pci_dma_current.len,
sun_pci_dma_current.direction); 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); ebus_dma_enable(&sun_pci_fd_ebus_dma, 0);
if (sun_pci_dma_current.addr != -1U) 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.addr,
sun_pci_dma_current.len, sun_pci_dma_current.len,
sun_pci_dma_current.direction); 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) static void sun_pci_fd_set_dma_mode(int mode)
{ {
if (mode == DMA_MODE_WRITE) if (mode == DMA_MODE_WRITE)
sun_pci_dma_pending.direction = PCI_DMA_TODEVICE; sun_pci_dma_pending.direction = DMA_TO_DEVICE;
else 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); 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 MSR
#undef DOR #undef DOR
#endif /* CONFIG_PCI */ static int __init ebus_fdthree_p(struct device_node *dp)
#ifdef CONFIG_PCI
static int __init ebus_fdthree_p(struct linux_ebus_device *edev)
{ {
if (!strcmp(edev->prom_node->name, "fdthree")) if (!strcmp(dp->name, "fdthree"))
return 1; return 1;
if (!strcmp(edev->prom_node->name, "floppy")) { if (!strcmp(dp->name, "floppy")) {
const char *compat; const char *compat;
compat = of_get_property(edev->prom_node, compat = of_get_property(dp, "compatible", NULL);
"compatible", NULL);
if (compat && !strcmp(compat, "fdthree")) if (compat && !strcmp(compat, "fdthree"))
return 1; return 1;
} }
return 0; return 0;
} }
#endif
static unsigned long __init sun_floppy_init(void) static unsigned long __init sun_floppy_init(void)
{ {
@ -584,44 +569,45 @@ static unsigned long __init sun_floppy_init(void)
floppy_op = op; floppy_op = op;
FLOPPY_IRQ = op->irqs[0]; FLOPPY_IRQ = op->irqs[0];
} else { } else {
#ifdef CONFIG_PCI struct device_node *ebus_dp;
struct linux_ebus *ebus;
struct linux_ebus_device *edev = NULL;
unsigned long config = 0;
void __iomem *auxio_reg; void __iomem *auxio_reg;
const char *state_prop; const char *state_prop;
unsigned long config;
for_each_ebus(ebus) { dp = NULL;
for_each_ebusdev(edev, ebus) { for_each_node_by_name(ebus_dp, "ebus") {
if (ebus_fdthree_p(edev)) for (dp = ebus_dp->child; dp; dp = dp->sibling) {
goto ebus_done; if (ebus_fdthree_p(dp))
goto found_fdthree;
} }
} }
ebus_done: found_fdthree:
if (!edev) if (!dp)
return 0; 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); state_prop = of_get_property(op->node, "status", NULL);
if (state_prop && !strncmp(state_prop, "disabled", 8)) if (state_prop && !strncmp(state_prop, "disabled", 8))
return 0; return 0;
FLOPPY_IRQ = edev->irqs[0]; FLOPPY_IRQ = op->irqs[0];
/* Make sure the high density bit is set, some systems /* Make sure the high density bit is set, some systems
* (most notably Ultra5/Ultra10) come up with it clear. * (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); 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); spin_lock_init(&sun_pci_fd_ebus_dma.lock);
/* XXX ioremap */ /* XXX ioremap */
sun_pci_fd_ebus_dma.regs = (void __iomem *) sun_pci_fd_ebus_dma.regs = (void __iomem *)
edev->resource[1].start; op->resource[1].start;
if (!sun_pci_fd_ebus_dma.regs) if (!sun_pci_fd_ebus_dma.regs)
return 0; return 0;
@ -635,7 +621,7 @@ static unsigned long __init sun_floppy_init(void)
return 0; return 0;
/* XXX ioremap */ /* 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_inb = sun_pci_fd_inb;
sun_fdops.fd_outb = sun_pci_fd_outb; sun_fdops.fd_outb = sun_pci_fd_outb;
@ -672,14 +658,17 @@ static unsigned long __init sun_floppy_init(void)
/* /*
* Find NS87303 SuperIO config registers (through ecpp). * Find NS87303 SuperIO config registers (through ecpp).
*/ */
for_each_ebus(ebus) { config = 0;
for_each_ebusdev(edev, ebus) { for (dp = ebus_dp->child; dp; dp = dp->sibling) {
if (!strcmp(edev->prom_node->name, "ecpp")) { if (!strcmp(dp->name, "ecpp")) {
config = edev->resource[1].start; 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; goto config_done;
} }
} }
}
config_done: config_done:
/* /*
@ -726,9 +715,6 @@ static unsigned long __init sun_floppy_init(void)
#endif /* PCI_FDC_SWAP_DRIVES */ #endif /* PCI_FDC_SWAP_DRIVES */
return sun_floppy_types[0]; return sun_floppy_types[0];
#else
return 0;
#endif
} }
prop = of_get_property(op->node, "status", NULL); prop = of_get_property(op->node, "status", NULL);
if (prop && !strncmp(state, "disabled", 8)) if (prop && !strncmp(state, "disabled", 8))