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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-27 16:41:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-27 16:41:24 -0700
commit34800598b2eebe061445216473b1e4c2ff5cba99 (patch)
treea6d0eb6fe45d9480888d7ddb34840e172ed80e56 /drivers/net/ethernet/cirrus/cs89x0.c
parent46b407ca4a6149c8d27fcec1881d4f184bec7c77 (diff)
parent511f1cb6d426938fabf9c6d69ce4861b66ffd919 (diff)
downloadop-kernel-dev-34800598b2eebe061445216473b1e4c2ff5cba99.zip
op-kernel-dev-34800598b2eebe061445216473b1e4c2ff5cba99.tar.gz
Merge tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull "ARM: driver specific updates" from Arnd Bergmann: "These are all specific to some driver. They are typically the platform side of a change in the drivers directory, such as adding a new driver or extending the interface to the platform. In cases where there is no maintainer for the driver, or the maintainer prefers to have the platform changes in the same branch as the driver changes, the patches to the drivers are included as well. A much smaller set of driver updates that depend on other branches getting merged first will be sent later. The new export of tegra_chip_uid conflicts with other changes in fuse.c. In rtc-sa1100.c, the global removal of IRQF_DISABLED conflicts with the cleanup of the interrupt handling of that driver. Signed-off-by: Arnd Bergmann <arnd@arndb.de>" Fixed up aforementioned trivial conflicts. * tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (94 commits) ARM: SAMSUNG: change the name from s3c-sdhci to exynos4-sdhci mmc: sdhci-s3c: add platform data for the second capability ARM: SAMSUNG: support the second capability for samsung-soc ARM: EXYNOS: add support DMA for EXYNOS4X12 SoC ARM: EXYNOS: Add apb_pclk clkdev entry for mdma1 ARM: EXYNOS: Enable MDMA driver regulator: Remove bq24022 regulator driver rtc: sa1100: add OF support pxa: magician/hx4700: Convert to gpio-regulator from bq24022 ARM: OMAP3+: SmartReflex: fix error handling ARM: OMAP3+: SmartReflex: fix the use of debugfs_create_* API ARM: OMAP3+: SmartReflex: micro-optimization for sanity check ARM: OMAP3+: SmartReflex: misc cleanups ARM: OMAP3+: SmartReflex: move late_initcall() closer to its argument ARM: OMAP3+: SmartReflex: add missing platform_set_drvdata() ARM: OMAP3+: hwmod: add SmartReflex IRQs ARM: OMAP3+: SmartReflex: clear ERRCONFIG_VPBOUNDINTST only on a need ARM: OMAP3+: SmartReflex: Fix status masking in ERRCONFIG register ARM: OMAP3+: SmartReflex: Add a shutdown hook ARM: OMAP3+: SmartReflex Class3: disable errorgen before disable VP ... Conflicts: arch/arm/mach-tegra/Makefile arch/arm/mach-tegra/fuse.c drivers/rtc/rtc-sa1100.c
Diffstat (limited to 'drivers/net/ethernet/cirrus/cs89x0.c')
-rw-r--r--drivers/net/ethernet/cirrus/cs89x0.c148
1 files changed, 122 insertions, 26 deletions
diff --git a/drivers/net/ethernet/cirrus/cs89x0.c b/drivers/net/ethernet/cirrus/cs89x0.c
index d5ff936..30fee42 100644
--- a/drivers/net/ethernet/cirrus/cs89x0.c
+++ b/drivers/net/ethernet/cirrus/cs89x0.c
@@ -100,9 +100,6 @@
*/
-/* Always include 'config.h' first in case the user wants to turn on
- or override something. */
-#include <linux/module.h>
/*
* Set this to zero to disable DMA code
@@ -131,9 +128,12 @@
*/
+#include <linux/module.h>
+#include <linux/printk.h>
#include <linux/errno.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
+#include <linux/platform_device.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/fcntl.h>
@@ -151,6 +151,7 @@
#include <asm/system.h>
#include <asm/io.h>
#include <asm/irq.h>
+#include <linux/atomic.h>
#if ALLOW_DMA
#include <asm/dma.h>
#endif
@@ -174,26 +175,20 @@ static char version[] __initdata =
them to system IRQ numbers. This mapping is card specific and is set to
the configuration of the Cirrus Eval board for this chip. */
#if defined(CONFIG_MACH_IXDP2351)
+#define CS89x0_NONISA_IRQ
static unsigned int netcard_portlist[] __used __initdata = {IXDP2351_VIRT_CS8900_BASE, 0};
static unsigned int cs8900_irq_map[] = {IRQ_IXDP2351_CS8900, 0, 0, 0};
#elif defined(CONFIG_ARCH_IXDP2X01)
+#define CS89x0_NONISA_IRQ
static unsigned int netcard_portlist[] __used __initdata = {IXDP2X01_CS8900_VIRT_BASE, 0};
static unsigned int cs8900_irq_map[] = {IRQ_IXDP2X01_CS8900, 0, 0, 0};
-#elif defined(CONFIG_MACH_QQ2440)
-#include <mach/qq2440.h>
-static unsigned int netcard_portlist[] __used __initdata = { QQ2440_CS8900_VIRT_BASE + 0x300, 0 };
-static unsigned int cs8900_irq_map[] = { QQ2440_CS8900_IRQ, 0, 0, 0 };
-#elif defined(CONFIG_MACH_MX31ADS)
-#include <mach/board-mx31ads.h>
-static unsigned int netcard_portlist[] __used __initdata = {
- PBC_BASE_ADDRESS + PBC_CS8900A_IOBASE + 0x300, 0
-};
-static unsigned cs8900_irq_map[] = {EXPIO_INT_ENET_INT, 0, 0, 0};
#else
+#ifndef CONFIG_CS89x0_PLATFORM
static unsigned int netcard_portlist[] __used __initdata =
{ 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0};
static unsigned int cs8900_irq_map[] = {10,11,12,5};
#endif
+#endif
#if DEBUGGING
static unsigned int net_debug = DEBUGGING;
@@ -236,11 +231,16 @@ struct net_local {
unsigned char *end_dma_buff; /* points to the end of the buffer */
unsigned char *rx_dma_ptr; /* points to the next packet */
#endif
+#ifdef CONFIG_CS89x0_PLATFORM
+ void __iomem *virt_addr;/* Virtual address for accessing the CS89x0. */
+ unsigned long phys_addr;/* Physical address for accessing the CS89x0. */
+ unsigned long size; /* Length of CS89x0 memory region. */
+#endif
};
/* Index to functions, as function prototypes. */
-static int cs89x0_probe1(struct net_device *dev, int ioaddr, int modular);
+static int cs89x0_probe1(struct net_device *dev, unsigned long ioaddr, int modular);
static int net_open(struct net_device *dev);
static netdev_tx_t net_send_packet(struct sk_buff *skb, struct net_device *dev);
static irqreturn_t net_interrupt(int irq, void *dev_id);
@@ -294,6 +294,7 @@ static int __init media_fn(char *str)
__setup("cs89x0_media=", media_fn);
+#ifndef CONFIG_CS89x0_PLATFORM
/* Check for a network adaptor of this type, and return '0' iff one exists.
If dev->base_addr == 0, probe all likely locations.
If dev->base_addr == 1, always return failure.
@@ -343,6 +344,7 @@ out:
return ERR_PTR(err);
}
#endif
+#endif
#if defined(CONFIG_MACH_IXDP2351)
static u16
@@ -504,7 +506,7 @@ static const struct net_device_ops net_ops = {
*/
static int __init
-cs89x0_probe1(struct net_device *dev, int ioaddr, int modular)
+cs89x0_probe1(struct net_device *dev, unsigned long ioaddr, int modular)
{
struct net_local *lp = netdev_priv(dev);
static unsigned version_printed;
@@ -529,15 +531,12 @@ cs89x0_probe1(struct net_device *dev, int ioaddr, int modular)
lp->force = g_cs89x0_media__force;
#endif
-#if defined(CONFIG_MACH_QQ2440)
- lp->force |= FORCE_RJ45 | FORCE_FULL;
-#endif
}
/* Grab the region so we can find another board if autoIRQ fails. */
/* WTF is going on here? */
if (!request_region(ioaddr & ~3, NETCARD_IO_EXTENT, DRV_NAME)) {
- printk(KERN_ERR "%s: request_region(0x%x, 0x%x) failed\n",
+ printk(KERN_ERR "%s: request_region(0x%lx, 0x%x) failed\n",
DRV_NAME, ioaddr, NETCARD_IO_EXTENT);
retval = -EBUSY;
goto out1;
@@ -549,7 +548,7 @@ cs89x0_probe1(struct net_device *dev, int ioaddr, int modular)
will skip the test for the ADD_PORT. */
if (ioaddr & 1) {
if (net_debug > 1)
- printk(KERN_INFO "%s: odd ioaddr 0x%x\n", dev->name, ioaddr);
+ printk(KERN_INFO "%s: odd ioaddr 0x%lx\n", dev->name, ioaddr);
if ((ioaddr & 2) != 2)
if ((readword(ioaddr & ~3, ADD_PORT) & ADD_MASK) != ADD_SIG) {
printk(KERN_ERR "%s: bad signature 0x%x\n",
@@ -560,13 +559,13 @@ cs89x0_probe1(struct net_device *dev, int ioaddr, int modular)
}
ioaddr &= ~3;
- printk(KERN_DEBUG "PP_addr at %x[%x]: 0x%x\n",
+ printk(KERN_DEBUG "PP_addr at %lx[%x]: 0x%x\n",
ioaddr, ADD_PORT, readword(ioaddr, ADD_PORT));
writeword(ioaddr, ADD_PORT, PP_ChipID);
tmp = readword(ioaddr, DATA_PORT);
if (tmp != CHIP_EISA_ID_SIG) {
- printk(KERN_DEBUG "%s: incorrect signature at %x[%x]: 0x%x!="
+ printk(KERN_DEBUG "%s: incorrect signature at %lx[%x]: 0x%x!="
CHIP_EISA_ID_SIG_STR "\n",
dev->name, ioaddr, DATA_PORT, tmp);
retval = -ENODEV;
@@ -736,8 +735,9 @@ cs89x0_probe1(struct net_device *dev, int ioaddr, int modular)
dev->irq = i;
} else {
i = lp->isa_config & INT_NO_MASK;
+#ifndef CONFIG_CS89x0_PLATFORM
if (lp->chip_type == CS8900) {
-#ifdef CONFIG_CS89x0_NONISA_IRQ
+#ifdef CS89x0_NONISA_IRQ
i = cs8900_irq_map[0];
#else
/* Translate the IRQ using the IRQ mapping table. */
@@ -758,6 +758,7 @@ cs89x0_probe1(struct net_device *dev, int ioaddr, int modular)
}
#endif
}
+#endif
if (!dev->irq)
dev->irq = i;
}
@@ -1168,6 +1169,7 @@ write_irq(struct net_device *dev, int chip_type, int irq)
int i;
if (chip_type == CS8900) {
+#ifndef CONFIG_CS89x0_PLATFORM
/* Search the mapping table for the corresponding IRQ pin. */
for (i = 0; i != ARRAY_SIZE(cs8900_irq_map); i++)
if (cs8900_irq_map[i] == irq)
@@ -1175,6 +1177,10 @@ write_irq(struct net_device *dev, int chip_type, int irq)
/* Not found */
if (i == ARRAY_SIZE(cs8900_irq_map))
i = 3;
+#else
+ /* INTRQ0 pin is used for interrupt generation. */
+ i = 0;
+#endif
writereg(dev, PP_CS8900_ISAINT, i);
} else {
writereg(dev, PP_CS8920_ISAINT, irq);
@@ -1228,7 +1234,7 @@ net_open(struct net_device *dev)
}
else
{
-#ifndef CONFIG_CS89x0_NONISA_IRQ
+#if !defined(CS89x0_NONISA_IRQ) && !defined(CONFIG_CS89x0_PLATFORM)
if (((1 << dev->irq) & lp->irq_map) == 0) {
printk(KERN_ERR "%s: IRQ %d is not in our map of allowable IRQs, which is %x\n",
dev->name, dev->irq, lp->irq_map);
@@ -1746,7 +1752,7 @@ static int set_mac_address(struct net_device *dev, void *p)
return 0;
}
-#ifdef MODULE
+#if defined(MODULE) && !defined(CONFIG_CS89x0_PLATFORM)
static struct net_device *dev_cs89x0;
@@ -1900,7 +1906,97 @@ cleanup_module(void)
release_region(dev_cs89x0->base_addr, NETCARD_IO_EXTENT);
free_netdev(dev_cs89x0);
}
-#endif /* MODULE */
+#endif /* MODULE && !CONFIG_CS89x0_PLATFORM */
+
+#ifdef CONFIG_CS89x0_PLATFORM
+static int __init cs89x0_platform_probe(struct platform_device *pdev)
+{
+ struct net_device *dev = alloc_etherdev(sizeof(struct net_local));
+ struct net_local *lp;
+ struct resource *mem_res;
+ int err;
+
+ if (!dev)
+ return -ENOMEM;
+
+ lp = netdev_priv(dev);
+
+ mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ dev->irq = platform_get_irq(pdev, 0);
+ if (mem_res == NULL || dev->irq <= 0) {
+ dev_warn(&dev->dev, "memory/interrupt resource missing.\n");
+ err = -ENXIO;
+ goto free;
+ }
+
+ lp->phys_addr = mem_res->start;
+ lp->size = resource_size(mem_res);
+ if (!request_mem_region(lp->phys_addr, lp->size, DRV_NAME)) {
+ dev_warn(&dev->dev, "request_mem_region() failed.\n");
+ err = -EBUSY;
+ goto free;
+ }
+
+ lp->virt_addr = ioremap(lp->phys_addr, lp->size);
+ if (!lp->virt_addr) {
+ dev_warn(&dev->dev, "ioremap() failed.\n");
+ err = -ENOMEM;
+ goto release;
+ }
+
+ err = cs89x0_probe1(dev, (unsigned long)lp->virt_addr, 0);
+ if (err) {
+ dev_warn(&dev->dev, "no cs8900 or cs8920 detected.\n");
+ goto unmap;
+ }
+
+ platform_set_drvdata(pdev, dev);
+ return 0;
+
+unmap:
+ iounmap(lp->virt_addr);
+release:
+ release_mem_region(lp->phys_addr, lp->size);
+free:
+ free_netdev(dev);
+ return err;
+}
+
+static int cs89x0_platform_remove(struct platform_device *pdev)
+{
+ struct net_device *dev = platform_get_drvdata(pdev);
+ struct net_local *lp = netdev_priv(dev);
+
+ unregister_netdev(dev);
+ iounmap(lp->virt_addr);
+ release_mem_region(lp->phys_addr, lp->size);
+ free_netdev(dev);
+ return 0;
+}
+
+static struct platform_driver cs89x0_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ },
+ .remove = cs89x0_platform_remove,
+};
+
+static int __init cs89x0_init(void)
+{
+ return platform_driver_probe(&cs89x0_driver, cs89x0_platform_probe);
+}
+
+module_init(cs89x0_init);
+
+static void __exit cs89x0_cleanup(void)
+{
+ platform_driver_unregister(&cs89x0_driver);
+}
+
+module_exit(cs89x0_cleanup);
+
+#endif /* CONFIG_CS89x0_PLATFORM */
/*
* Local variables:
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