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Commit 826b6cfc authored by David S. Miller's avatar David S. Miller
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fore200e: Convert over to pure OF driver. 

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ae251031
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Showing with 189 additions and 232 deletions
drivers/atm/fore200e.c
View file @ 826b6cfc
......@@ -47,8 +47,9 @@
#include <asm/atomic.h>
#ifdef CONFIG_SBUS
#include <linux/of.h>
#include <linux/of_device.h>
#include <asm/idprom.h>
#include <asm/sbus.h>
#include <asm/openprom.h>
#include <asm/oplib.h>
#include <asm/pgtable.h>
......@@ -661,26 +662,22 @@ fore200e_pca_proc_read(struct fore200e* fore200e, char *page)
#ifdef CONFIG_SBUS
static u32
fore200e_sba_read(volatile u32 __iomem *addr)
static u32 fore200e_sba_read(volatile u32 __iomem *addr)
{
return sbus_readl(addr);
}
static void
fore200e_sba_write(u32 val, volatile u32 __iomem *addr)
static void fore200e_sba_write(u32 val, volatile u32 __iomem *addr)
{
sbus_writel(val, addr);
}
static u32
fore200e_sba_dma_map(struct fore200e* fore200e, void* virt_addr, int size, int direction)
static u32 fore200e_sba_dma_map(struct fore200e *fore200e, void* virt_addr, int size, int direction)
{
struct sbus_dev *sdev = fore200e->bus_dev;
struct device *dev = &sdev->ofdev.dev;
u32 dma_addr = dma_map_single(dev, virt_addr, size, direction);
struct of_device *op = fore200e->bus_dev;
u32 dma_addr;
dma_addr = dma_map_single(&op->dev, virt_addr, size, direction);
DPRINTK(3, "SBUS DVMA mapping: virt_addr = 0x%p, size = %d, direction = %d --> dma_addr = 0x%08x\n",
virt_addr, size, direction, dma_addr);
......@@ -688,57 +685,46 @@ fore200e_sba_dma_map(struct fore200e* fore200e, void* virt_addr, int size, int d
return dma_addr;
}
static void
fore200e_sba_dma_unmap(struct fore200e* fore200e, u32 dma_addr, int size, int direction)
static void fore200e_sba_dma_unmap(struct fore200e *fore200e, u32 dma_addr, int size, int direction)
{
struct sbus_dev *sdev = fore200e->bus_dev;
struct device *dev = &sdev->ofdev.dev;
struct of_device *op = fore200e->bus_dev;
DPRINTK(3, "SBUS DVMA unmapping: dma_addr = 0x%08x, size = %d, direction = %d,\n",
dma_addr, size, direction);
dma_unmap_single(dev, dma_addr, size, direction);
dma_unmap_single(&op->dev, dma_addr, size, direction);
}
static void
fore200e_sba_dma_sync_for_cpu(struct fore200e* fore200e, u32 dma_addr, int size, int direction)
static void fore200e_sba_dma_sync_for_cpu(struct fore200e *fore200e, u32 dma_addr, int size, int direction)
{
struct sbus_dev *sdev = fore200e->bus_dev;
struct device *dev = &sdev->ofdev.dev;
struct of_device *op = fore200e->bus_dev;
DPRINTK(3, "SBUS DVMA sync: dma_addr = 0x%08x, size = %d, direction = %d\n", dma_addr, size, direction);
dma_sync_single_for_cpu(dev, dma_addr, size, direction);
dma_sync_single_for_cpu(&op->dev, dma_addr, size, direction);
}
static void
fore200e_sba_dma_sync_for_device(struct fore200e* fore200e, u32 dma_addr, int size, int direction)
static void fore200e_sba_dma_sync_for_device(struct fore200e *fore200e, u32 dma_addr, int size, int direction)
{
struct sbus_dev *sdev = fore200e->bus_dev;
struct device *dev = &sdev->ofdev.dev;
struct of_device *op = fore200e->bus_dev;
DPRINTK(3, "SBUS DVMA sync: dma_addr = 0x%08x, size = %d, direction = %d\n", dma_addr, size, direction);
dma_sync_single_for_device(dev, dma_addr, size, direction);
dma_sync_single_for_device(&op->dev, dma_addr, size, direction);
}
/* allocate a DVMA consistent chunk of memory intended to act as a communication mechanism
(to hold descriptors, status, queues, etc.) shared by the driver and the adapter */
static int
fore200e_sba_dma_chunk_alloc(struct fore200e* fore200e, struct chunk* chunk,
/* Allocate a DVMA consistent chunk of memory intended to act as a communication mechanism
* (to hold descriptors, status, queues, etc.) shared by the driver and the adapter.
*/
static int fore200e_sba_dma_chunk_alloc(struct fore200e *fore200e, struct chunk *chunk,
int size, int nbr, int alignment)
{
struct sbus_dev *sdev = (struct sbus_dev *) fore200e->bus_dev;
struct device *dev = &sdev->ofdev.dev;
struct of_device *op = fore200e->bus_dev;
chunk->alloc_size = chunk->align_size = size * nbr;
/* returned chunks are page-aligned */
chunk->alloc_addr = dma_alloc_coherent(dev, chunk->alloc_size,
chunk->alloc_addr = dma_alloc_coherent(&op->dev, chunk->alloc_size,
&chunk->dma_addr, GFP_ATOMIC);
if ((chunk->alloc_addr == NULL) || (chunk->dma_addr == 0))
......@@ -749,65 +735,51 @@ fore200e_sba_dma_chunk_alloc(struct fore200e* fore200e, struct chunk* chunk,
return 0;
}
/* free a DVMA consistent chunk of memory */
static void
fore200e_sba_dma_chunk_free(struct fore200e* fore200e, struct chunk* chunk)
static void fore200e_sba_dma_chunk_free(struct fore200e *fore200e, struct chunk *chunk)
{
struct sbus_dev *sdev = (struct sbus_dev *) fore200e->bus_dev;
struct device *dev = &sdev->ofdev.dev;
struct of_device *op = fore200e->bus_dev;
dma_free_coherent(dev, chunk->alloc_size,
dma_free_coherent(&op->dev, chunk->alloc_size,
chunk->alloc_addr, chunk->dma_addr);
}
static void
fore200e_sba_irq_enable(struct fore200e* fore200e)
static void fore200e_sba_irq_enable(struct fore200e *fore200e)
{
u32 hcr = fore200e->bus->read(fore200e->regs.sba.hcr) & SBA200E_HCR_STICKY;
fore200e->bus->write(hcr | SBA200E_HCR_INTR_ENA, fore200e->regs.sba.hcr);
}
static int
fore200e_sba_irq_check(struct fore200e* fore200e)
static int fore200e_sba_irq_check(struct fore200e *fore200e)
{
return fore200e->bus->read(fore200e->regs.sba.hcr) & SBA200E_HCR_INTR_REQ;
}
static void
fore200e_sba_irq_ack(struct fore200e* fore200e)
static void fore200e_sba_irq_ack(struct fore200e *fore200e)
{
u32 hcr = fore200e->bus->read(fore200e->regs.sba.hcr) & SBA200E_HCR_STICKY;
fore200e->bus->write(hcr | SBA200E_HCR_INTR_CLR, fore200e->regs.sba.hcr);
}
static void
fore200e_sba_reset(struct fore200e* fore200e)
static void fore200e_sba_reset(struct fore200e *fore200e)
{
fore200e->bus->write(SBA200E_HCR_RESET, fore200e->regs.sba.hcr);
fore200e_spin(10);
fore200e->bus->write(0, fore200e->regs.sba.hcr);
}
static int __init
fore200e_sba_map(struct fore200e* fore200e)
static int __init fore200e_sba_map(struct fore200e *fore200e)
{
struct sbus_dev* sbus_dev = (struct sbus_dev*)fore200e->bus_dev;
struct of_device *op = fore200e->bus_dev;
unsigned int bursts;
/* gain access to the SBA specific registers */
fore200e->regs.sba.hcr = sbus_ioremap(&sbus_dev->resource[0], 0, SBA200E_HCR_LENGTH, "SBA HCR");
fore200e->regs.sba.bsr = sbus_ioremap(&sbus_dev->resource[1], 0, SBA200E_BSR_LENGTH, "SBA BSR");
fore200e->regs.sba.isr = sbus_ioremap(&sbus_dev->resource[2], 0, SBA200E_ISR_LENGTH, "SBA ISR");
fore200e->virt_base = sbus_ioremap(&sbus_dev->resource[3], 0, SBA200E_RAM_LENGTH, "SBA RAM");
fore200e->regs.sba.hcr = of_ioremap(&op->resource[0], 0, SBA200E_HCR_LENGTH, "SBA HCR");
fore200e->regs.sba.bsr = of_ioremap(&op->resource[1], 0, SBA200E_BSR_LENGTH, "SBA BSR");
fore200e->regs.sba.isr = of_ioremap(&op->resource[2], 0, SBA200E_ISR_LENGTH, "SBA ISR");
fore200e->virt_base = of_ioremap(&op->resource[3], 0, SBA200E_RAM_LENGTH, "SBA RAM");
if (fore200e->virt_base == NULL) {
if (!fore200e->virt_base) {
printk(FORE200E "unable to map RAM of device %s\n", fore200e->name);
return -EFAULT;
}
......@@ -817,107 +789,62 @@ fore200e_sba_map(struct fore200e* fore200e)
fore200e->bus->write(0x02, fore200e->regs.sba.isr); /* XXX hardwired interrupt level */
/* get the supported DVMA burst sizes */
bursts = prom_getintdefault(sbus_dev->bus->prom_node, "burst-sizes", 0x00);
bursts = of_getintprop_default(op->node->parent, "burst-sizes", 0x00);
if (sbus_can_dma_64bit())
sbus_set_sbus64(&sbus_dev->ofdev.dev, bursts);
sbus_set_sbus64(&op->dev, bursts);
fore200e->state = FORE200E_STATE_MAP;
return 0;
}
static void
fore200e_sba_unmap(struct fore200e* fore200e)
static void fore200e_sba_unmap(struct fore200e *fore200e)
{
sbus_iounmap(fore200e->regs.sba.hcr, SBA200E_HCR_LENGTH);
sbus_iounmap(fore200e->regs.sba.bsr, SBA200E_BSR_LENGTH);
sbus_iounmap(fore200e->regs.sba.isr, SBA200E_ISR_LENGTH);
sbus_iounmap(fore200e->virt_base, SBA200E_RAM_LENGTH);
}
struct of_device *op = fore200e->bus_dev;
of_iounmap(&op->resource[0], fore200e->regs.sba.hcr, SBA200E_HCR_LENGTH);
of_iounmap(&op->resource[1], fore200e->regs.sba.bsr, SBA200E_BSR_LENGTH);
of_iounmap(&op->resource[2], fore200e->regs.sba.isr, SBA200E_ISR_LENGTH);
of_iounmap(&op->resource[3], fore200e->virt_base, SBA200E_RAM_LENGTH);
}
static int __init
fore200e_sba_configure(struct fore200e* fore200e)
static int __init fore200e_sba_configure(struct fore200e *fore200e)
{
fore200e->state = FORE200E_STATE_CONFIGURE;
return 0;
}
static struct fore200e* __init
fore200e_sba_detect(const struct fore200e_bus* bus, int index)
static int __init fore200e_sba_prom_read(struct fore200e *fore200e, struct prom_data *prom)
{
struct fore200e* fore200e;
struct sbus_bus* sbus_bus;
struct sbus_dev* sbus_dev = NULL;
unsigned int count = 0;
for_each_sbus (sbus_bus) {
for_each_sbusdev (sbus_dev, sbus_bus) {
if (strcmp(sbus_dev->prom_name, SBA200E_PROM_NAME) == 0) {
if (count >= index)
goto found;
count++;
}
}
}
return NULL;
found:
if (sbus_dev->num_registers != 4) {
printk(FORE200E "this %s device has %d instead of 4 registers\n",
bus->model_name, sbus_dev->num_registers);
return NULL;
}
fore200e = kzalloc(sizeof(struct fore200e), GFP_KERNEL);
if (fore200e == NULL)
return NULL;
fore200e->bus = bus;
fore200e->bus_dev = sbus_dev;
fore200e->irq = sbus_dev->irqs[ 0 ];
fore200e->phys_base = (unsigned long)sbus_dev;
sprintf(fore200e->name, "%s-%d", bus->model_name, index - 1);
return fore200e;
}
static int __init
fore200e_sba_prom_read(struct fore200e* fore200e, struct prom_data* prom)
{
struct sbus_dev* sbus_dev = (struct sbus_dev*) fore200e->bus_dev;
struct of_device *op = fore200e->bus_dev;
const u8 *prop;
int len;
len = prom_getproperty(sbus_dev->prom_node, "macaddrlo2", &prom->mac_addr[ 4 ], 4);
if (len < 0)
return -EBUSY;
len = prom_getproperty(sbus_dev->prom_node, "macaddrhi4", &prom->mac_addr[ 2 ], 4);
if (len < 0)
return -EBUSY;
prop = of_get_property(op->node, "madaddrlo2", &len);
if (!prop)
return -ENODEV;
memcpy(&prom->mac_addr[4], prop, 4);
prom_getproperty(sbus_dev->prom_node, "serialnumber",
(char*)&prom->serial_number, sizeof(prom->serial_number));
prop = of_get_property(op->node, "madaddrhi4", &len);
if (!prop)
return -ENODEV;
memcpy(&prom->mac_addr[2], prop, 4);
prom_getproperty(sbus_dev->prom_node, "promversion",
(char*)&prom->hw_revision, sizeof(prom->hw_revision));
prom->serial_number = of_getintprop_default(op->node, "serialnumber", 0);
prom->hw_revision = of_getintprop_default(op->node, "promversion", 0);
return 0;
}
static int
fore200e_sba_proc_read(struct fore200e* fore200e, char *page)
static int fore200e_sba_proc_read(struct fore200e *fore200e, char *page)
{
struct sbus_dev* sbus_dev = (struct sbus_dev*)fore200e->bus_dev;
struct of_device *op = fore200e->bus_dev;
const struct linux_prom_registers *regs;
return sprintf(page, " SBUS slot/device:\t\t%d/'%s'\n", sbus_dev->slot, sbus_dev->prom_name);
regs = of_get_property(op->node, "reg", NULL);
return sprintf(page, " SBUS slot/device:\t\t%d/'%s'\n",
(regs ? regs->which_io : 0), op->node->name);
}
#endif /* CONFIG_SBUS */
......@@ -2586,7 +2513,7 @@ fore200e_load_and_start_fw(struct fore200e* fore200e)
device = &((struct pci_dev *) fore200e->bus_dev)->dev;
#ifdef CONFIG_SBUS
else if (strcmp(fore200e->bus->model_name, "SBA-200E") == 0)
device = &((struct sbus_dev *) fore200e->bus_dev)->ofdev.dev;
device = &((struct of_device *) fore200e->bus_dev)->dev;
#endif
else
return err;
......@@ -2715,6 +2642,66 @@ fore200e_init(struct fore200e* fore200e)
return 0;
}
#ifdef CONFIG_SBUS
static int __devinit fore200e_sba_probe(struct of_device *op,
const struct of_device_id *match)
{
const struct fore200e_bus *bus = match->data;
struct fore200e *fore200e;
static int index = 0;
int err;
fore200e = kzalloc(sizeof(struct fore200e), GFP_KERNEL);
if (!fore200e)
return -ENOMEM;
fore200e->bus = bus;
fore200e->bus_dev = op;
fore200e->irq = op->irqs[0];
fore200e->phys_base = op->resource[0].start;
sprintf(fore200e->name, "%s-%d", bus->model_name, index);
err = fore200e_init(fore200e);
if (err < 0) {
fore200e_shutdown(fore200e);
kfree(fore200e);
return err;
}
index++;
dev_set_drvdata(&op->dev, fore200e);
return 0;
}
static int __devexit fore200e_sba_remove(struct of_device *op)
{
struct fore200e *fore200e = dev_get_drvdata(&op->dev);
fore200e_shutdown(fore200e);
kfree(fore200e);
return 0;
}
static struct of_device_id fore200e_sba_match[] = {
{
.name = SBA200E_PROM_NAME,
.data = (void *) &fore200e_bus[1],
},
{},
};
MODULE_DEVICE_TABLE(of, fore200e_sba_match);
static struct of_platform_driver fore200e_sba_driver = {
.name = "fore_200e",
.match_table = fore200e_sba_match,
.probe = fore200e_sba_probe,
.remove = __devexit_p(fore200e_sba_remove),
};
#endif
#ifdef CONFIG_PCI
static int __devinit
fore200e_pca_detect(struct pci_dev *pci_dev, const struct pci_device_id *pci_ent)
......@@ -2798,67 +2785,40 @@ static struct pci_driver fore200e_pca_driver = {
};
#endif
static int __init
fore200e_module_init(void)
static int __init fore200e_module_init(void)
{
const struct fore200e_bus* bus;
struct fore200e* fore200e;
int index;
int err;
printk(FORE200E "FORE Systems 200E-series ATM driver - version " FORE200E_VERSION "\n");
/* for each configured bus interface */
for (bus = fore200e_bus; bus->model_name; bus++) {
/* detect all boards present on that bus */
for (index = 0; bus->detect && (fore200e = bus->detect(bus, index)); index++) {
printk(FORE200E "device %s found at 0x%lx, IRQ %s\n",
fore200e->bus->model_name,
fore200e->phys_base, fore200e_irq_itoa(fore200e->irq));
sprintf(fore200e->name, "%s-%d", bus->model_name, index);
if (fore200e_init(fore200e) < 0) {
fore200e_shutdown(fore200e);
break;
}
list_add(&fore200e->entry, &fore200e_boards);
}
}
#ifdef CONFIG_SBUS
err = of_register_driver(&fore200e_sba_driver, &of_bus_type);
if (err)
return err;
#endif
#ifdef CONFIG_PCI
if (!pci_register_driver(&fore200e_pca_driver))
return 0;
err = pci_register_driver(&fore200e_pca_driver);
#endif
if (!list_empty(&fore200e_boards))
return 0;
#ifdef CONFIG_SBUS
if (err)
of_unregister_driver(&fore200e_sba_driver);
#endif
return -ENODEV;
return err;
}
static void __exit
fore200e_module_cleanup(void)
static void __exit fore200e_module_cleanup(void)
{
struct fore200e *fore200e, *next;
#ifdef CONFIG_PCI
pci_unregister_driver(&fore200e_pca_driver);
#endif
list_for_each_entry_safe(fore200e, next, &fore200e_boards, entry) {
fore200e_shutdown(fore200e);
kfree(fore200e);
}
DPRINTK(1, "module being removed\n");
#ifdef CONFIG_SBUS
of_unregister_driver(&fore200e_sba_driver);
#endif
}
static int
fore200e_proc_read(struct atm_dev *dev, loff_t* pos, char* page)
{
......@@ -3177,7 +3137,6 @@ static const struct fore200e_bus fore200e_bus[] = {
fore200e_pca_dma_sync_for_device,
fore200e_pca_dma_chunk_alloc,
fore200e_pca_dma_chunk_free,
NULL,
fore200e_pca_configure,
fore200e_pca_map,
fore200e_pca_reset,
......@@ -3199,7 +3158,6 @@ static const struct fore200e_bus fore200e_bus[] = {
fore200e_sba_dma_sync_for_device,
fore200e_sba_dma_chunk_alloc,
fore200e_sba_dma_chunk_free,
fore200e_sba_detect,
fore200e_sba_configure,
fore200e_sba_map,
fore200e_sba_reset,
......
drivers/atm/fore200e.h
View file @ 826b6cfc
......@@ -778,9 +778,9 @@ typedef struct fore200e_pca_regs {
/* SBA-200E registers */
typedef struct fore200e_sba_regs {
volatile u32 __iomem *hcr; /* address of host control register */
volatile u32 __iomem *bsr; /* address of burst transfer size register */
volatile u32 __iomem *isr; /* address of interrupt level selection register */
u32 __iomem *hcr; /* address of host control register */
u32 __iomem *bsr; /* address of burst transfer size register */
u32 __iomem *isr; /* address of interrupt level selection register */
} fore200e_sba_regs_t;
......@@ -810,7 +810,6 @@ typedef struct fore200e_bus {
void (*dma_sync_for_device)(struct fore200e*, u32, int, int);
int (*dma_chunk_alloc)(struct fore200e*, struct chunk*, int, int, int);
void (*dma_chunk_free)(struct fore200e*, struct chunk*);
struct fore200e* (*detect)(const struct fore200e_bus*, int);
int (*configure)(struct fore200e*);
int (*map)(struct fore200e*);
void (*reset)(struct fore200e*);
......
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