From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/drivers/net/ethernet/i825xx/sni_82596.c | 184 +++++++++++++++++++++++++ 1 file changed, 184 insertions(+) create mode 100644 kernel/drivers/net/ethernet/i825xx/sni_82596.c (limited to 'kernel/drivers/net/ethernet/i825xx/sni_82596.c') diff --git a/kernel/drivers/net/ethernet/i825xx/sni_82596.c b/kernel/drivers/net/ethernet/i825xx/sni_82596.c new file mode 100644 index 000000000..2af7f7734 --- /dev/null +++ b/kernel/drivers/net/ethernet/i825xx/sni_82596.c @@ -0,0 +1,184 @@ +/* + * sni_82596.c -- driver for intel 82596 ethernet controller, as + * used in older SNI RM machines + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define SNI_82596_DRIVER_VERSION "SNI RM 82596 driver - Revision: 0.01" + +static const char sni_82596_string[] = "snirm_82596"; + +#define DMA_ALLOC dma_alloc_coherent +#define DMA_FREE dma_free_coherent +#define DMA_WBACK(priv, addr, len) do { } while (0) +#define DMA_INV(priv, addr, len) do { } while (0) +#define DMA_WBACK_INV(priv, addr, len) do { } while (0) + +#define SYSBUS 0x00004400 + +/* big endian CPU, 82596 little endian */ +#define SWAP32(x) cpu_to_le32((u32)(x)) +#define SWAP16(x) cpu_to_le16((u16)(x)) + +#define OPT_MPU_16BIT 0x01 + +#include "lib82596.c" + +MODULE_AUTHOR("Thomas Bogendoerfer"); +MODULE_DESCRIPTION("i82596 driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:snirm_82596"); +module_param(i596_debug, int, 0); +MODULE_PARM_DESC(i596_debug, "82596 debug mask"); + +static inline void ca(struct net_device *dev) +{ + struct i596_private *lp = netdev_priv(dev); + + writel(0, lp->ca); +} + + +static void mpu_port(struct net_device *dev, int c, dma_addr_t x) +{ + struct i596_private *lp = netdev_priv(dev); + + u32 v = (u32) (c) | (u32) (x); + + if (lp->options & OPT_MPU_16BIT) { + writew(v & 0xffff, lp->mpu_port); + wmb(); /* order writes to MPU port */ + udelay(1); + writew(v >> 16, lp->mpu_port); + } else { + writel(v, lp->mpu_port); + wmb(); /* order writes to MPU port */ + udelay(1); + writel(v, lp->mpu_port); + } +} + + +static int sni_82596_probe(struct platform_device *dev) +{ + struct net_device *netdevice; + struct i596_private *lp; + struct resource *res, *ca, *idprom, *options; + int retval = -ENOMEM; + void __iomem *mpu_addr; + void __iomem *ca_addr; + u8 __iomem *eth_addr; + + res = platform_get_resource(dev, IORESOURCE_MEM, 0); + ca = platform_get_resource(dev, IORESOURCE_MEM, 1); + options = platform_get_resource(dev, 0, 0); + idprom = platform_get_resource(dev, IORESOURCE_MEM, 2); + if (!res || !ca || !options || !idprom) + return -ENODEV; + mpu_addr = ioremap_nocache(res->start, 4); + if (!mpu_addr) + return -ENOMEM; + ca_addr = ioremap_nocache(ca->start, 4); + if (!ca_addr) + goto probe_failed_free_mpu; + + printk(KERN_INFO "Found i82596 at 0x%x\n", res->start); + + netdevice = alloc_etherdev(sizeof(struct i596_private)); + if (!netdevice) + goto probe_failed_free_ca; + + SET_NETDEV_DEV(netdevice, &dev->dev); + platform_set_drvdata (dev, netdevice); + + netdevice->base_addr = res->start; + netdevice->irq = platform_get_irq(dev, 0); + + eth_addr = ioremap_nocache(idprom->start, 0x10); + if (!eth_addr) + goto probe_failed; + + /* someone seems to like messed up stuff */ + netdevice->dev_addr[0] = readb(eth_addr + 0x0b); + netdevice->dev_addr[1] = readb(eth_addr + 0x0a); + netdevice->dev_addr[2] = readb(eth_addr + 0x09); + netdevice->dev_addr[3] = readb(eth_addr + 0x08); + netdevice->dev_addr[4] = readb(eth_addr + 0x07); + netdevice->dev_addr[5] = readb(eth_addr + 0x06); + iounmap(eth_addr); + + if (!netdevice->irq) { + printk(KERN_ERR "%s: IRQ not found for i82596 at 0x%lx\n", + __FILE__, netdevice->base_addr); + goto probe_failed; + } + + lp = netdev_priv(netdevice); + lp->options = options->flags & IORESOURCE_BITS; + lp->ca = ca_addr; + lp->mpu_port = mpu_addr; + + retval = i82596_probe(netdevice); + if (retval == 0) + return 0; + +probe_failed: + free_netdev(netdevice); +probe_failed_free_ca: + iounmap(ca_addr); +probe_failed_free_mpu: + iounmap(mpu_addr); + return retval; +} + +static int sni_82596_driver_remove(struct platform_device *pdev) +{ + struct net_device *dev = platform_get_drvdata(pdev); + struct i596_private *lp = netdev_priv(dev); + + unregister_netdev(dev); + DMA_FREE(dev->dev.parent, sizeof(struct i596_private), + lp->dma, lp->dma_addr); + iounmap(lp->ca); + iounmap(lp->mpu_port); + free_netdev (dev); + return 0; +} + +static struct platform_driver sni_82596_driver = { + .probe = sni_82596_probe, + .remove = sni_82596_driver_remove, + .driver = { + .name = sni_82596_string, + }, +}; + +static int sni_82596_init(void) +{ + printk(KERN_INFO SNI_82596_DRIVER_VERSION "\n"); + return platform_driver_register(&sni_82596_driver); +} + + +static void __exit sni_82596_exit(void) +{ + platform_driver_unregister(&sni_82596_driver); +} + +module_init(sni_82596_init); +module_exit(sni_82596_exit); -- cgit 1.2.3-korg