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authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-06-11 02:29:36 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-08-12 00:22:12 -0700
commitec21e2ec367697b4803e82662bdff6c8567745fc (patch)
treecdb42f597ff5e60516bdab59d306006fd1fafd1c /drivers/net/fs_enet/mac-fec.c
parent5346ebf6db077d963e9d81af9df290d7f5532492 (diff)
freescale: Move the Freescale drivers
Move the Freescale drivers into drivers/net/ethernet/freescale/ and make the necessary Kconfig and Makefile changes. CC: Sandeep Gopalpet <sandeep.kumar@freescale.com> CC: Andy Fleming <afleming@freescale.com> CC: Shlomi Gridish <gridish@freescale.com> CC: Li Yang <leoli@freescale.com> CC: Pantelis Antoniou <pantelis.antoniou@gmail.com> CC: Vitaly Bordug <vbordug@ru.mvista.com> CC: Dan Malek <dmalek@jlc.net> CC: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/fs_enet/mac-fec.c')
-rw-r--r--drivers/net/fs_enet/mac-fec.c498
1 files changed, 0 insertions, 498 deletions
diff --git a/drivers/net/fs_enet/mac-fec.c b/drivers/net/fs_enet/mac-fec.c
deleted file mode 100644
index b9fbc83d64a..00000000000
--- a/drivers/net/fs_enet/mac-fec.c
+++ /dev/null
@@ -1,498 +0,0 @@
-/*
- * Freescale Ethernet controllers
- *
- * Copyright (c) 2005 Intracom S.A.
- * by Pantelis Antoniou <panto@intracom.gr>
- *
- * 2005 (c) MontaVista Software, Inc.
- * Vitaly Bordug <vbordug@ru.mvista.com>
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/ptrace.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/spinlock.h>
-#include <linux/mii.h>
-#include <linux/ethtool.h>
-#include <linux/bitops.h>
-#include <linux/fs.h>
-#include <linux/platform_device.h>
-#include <linux/of_device.h>
-#include <linux/gfp.h>
-
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-
-#ifdef CONFIG_8xx
-#include <asm/8xx_immap.h>
-#include <asm/pgtable.h>
-#include <asm/mpc8xx.h>
-#include <asm/cpm1.h>
-#endif
-
-#include "fs_enet.h"
-#include "fec.h"
-
-/*************************************************/
-
-#if defined(CONFIG_CPM1)
-/* for a CPM1 __raw_xxx's are sufficient */
-#define __fs_out32(addr, x) __raw_writel(x, addr)
-#define __fs_out16(addr, x) __raw_writew(x, addr)
-#define __fs_in32(addr) __raw_readl(addr)
-#define __fs_in16(addr) __raw_readw(addr)
-#else
-/* for others play it safe */
-#define __fs_out32(addr, x) out_be32(addr, x)
-#define __fs_out16(addr, x) out_be16(addr, x)
-#define __fs_in32(addr) in_be32(addr)
-#define __fs_in16(addr) in_be16(addr)
-#endif
-
-/* write */
-#define FW(_fecp, _reg, _v) __fs_out32(&(_fecp)->fec_ ## _reg, (_v))
-
-/* read */
-#define FR(_fecp, _reg) __fs_in32(&(_fecp)->fec_ ## _reg)
-
-/* set bits */
-#define FS(_fecp, _reg, _v) FW(_fecp, _reg, FR(_fecp, _reg) | (_v))
-
-/* clear bits */
-#define FC(_fecp, _reg, _v) FW(_fecp, _reg, FR(_fecp, _reg) & ~(_v))
-
-/*
- * Delay to wait for FEC reset command to complete (in us)
- */
-#define FEC_RESET_DELAY 50
-
-static int whack_reset(struct fec __iomem *fecp)
-{
- int i;
-
- FW(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_RESET);
- for (i = 0; i < FEC_RESET_DELAY; i++) {
- if ((FR(fecp, ecntrl) & FEC_ECNTRL_RESET) == 0)
- return 0; /* OK */
- udelay(1);
- }
-
- return -1;
-}
-
-static int do_pd_setup(struct fs_enet_private *fep)
-{
- struct platform_device *ofdev = to_platform_device(fep->dev);
-
- fep->interrupt = of_irq_to_resource(ofdev->dev.of_node, 0, NULL);
- if (fep->interrupt == NO_IRQ)
- return -EINVAL;
-
- fep->fec.fecp = of_iomap(ofdev->dev.of_node, 0);
- if (!fep->fcc.fccp)
- return -EINVAL;
-
- return 0;
-}
-
-#define FEC_NAPI_RX_EVENT_MSK (FEC_ENET_RXF | FEC_ENET_RXB)
-#define FEC_RX_EVENT (FEC_ENET_RXF)
-#define FEC_TX_EVENT (FEC_ENET_TXF)
-#define FEC_ERR_EVENT_MSK (FEC_ENET_HBERR | FEC_ENET_BABR | \
- FEC_ENET_BABT | FEC_ENET_EBERR)
-
-static int setup_data(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
-
- if (do_pd_setup(fep) != 0)
- return -EINVAL;
-
- fep->fec.hthi = 0;
- fep->fec.htlo = 0;
-
- fep->ev_napi_rx = FEC_NAPI_RX_EVENT_MSK;
- fep->ev_rx = FEC_RX_EVENT;
- fep->ev_tx = FEC_TX_EVENT;
- fep->ev_err = FEC_ERR_EVENT_MSK;
-
- return 0;
-}
-
-static int allocate_bd(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- const struct fs_platform_info *fpi = fep->fpi;
-
- fep->ring_base = (void __force __iomem *)dma_alloc_coherent(fep->dev,
- (fpi->tx_ring + fpi->rx_ring) *
- sizeof(cbd_t), &fep->ring_mem_addr,
- GFP_KERNEL);
- if (fep->ring_base == NULL)
- return -ENOMEM;
-
- return 0;
-}
-
-static void free_bd(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- const struct fs_platform_info *fpi = fep->fpi;
-
- if(fep->ring_base)
- dma_free_coherent(fep->dev, (fpi->tx_ring + fpi->rx_ring)
- * sizeof(cbd_t),
- (void __force *)fep->ring_base,
- fep->ring_mem_addr);
-}
-
-static void cleanup_data(struct net_device *dev)
-{
- /* nothing */
-}
-
-static void set_promiscuous_mode(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- struct fec __iomem *fecp = fep->fec.fecp;
-
- FS(fecp, r_cntrl, FEC_RCNTRL_PROM);
-}
-
-static void set_multicast_start(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
-
- fep->fec.hthi = 0;
- fep->fec.htlo = 0;
-}
-
-static void set_multicast_one(struct net_device *dev, const u8 *mac)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- int temp, hash_index, i, j;
- u32 crc, csrVal;
- u8 byte, msb;
-
- crc = 0xffffffff;
- for (i = 0; i < 6; i++) {
- byte = mac[i];
- for (j = 0; j < 8; j++) {
- msb = crc >> 31;
- crc <<= 1;
- if (msb ^ (byte & 0x1))
- crc ^= FEC_CRC_POLY;
- byte >>= 1;
- }
- }
-
- temp = (crc & 0x3f) >> 1;
- hash_index = ((temp & 0x01) << 4) |
- ((temp & 0x02) << 2) |
- ((temp & 0x04)) |
- ((temp & 0x08) >> 2) |
- ((temp & 0x10) >> 4);
- csrVal = 1 << hash_index;
- if (crc & 1)
- fep->fec.hthi |= csrVal;
- else
- fep->fec.htlo |= csrVal;
-}
-
-static void set_multicast_finish(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- struct fec __iomem *fecp = fep->fec.fecp;
-
- /* if all multi or too many multicasts; just enable all */
- if ((dev->flags & IFF_ALLMULTI) != 0 ||
- netdev_mc_count(dev) > FEC_MAX_MULTICAST_ADDRS) {
- fep->fec.hthi = 0xffffffffU;
- fep->fec.htlo = 0xffffffffU;
- }
-
- FC(fecp, r_cntrl, FEC_RCNTRL_PROM);
- FW(fecp, grp_hash_table_high, fep->fec.hthi);
- FW(fecp, grp_hash_table_low, fep->fec.htlo);
-}
-
-static void set_multicast_list(struct net_device *dev)
-{
- struct netdev_hw_addr *ha;
-
- if ((dev->flags & IFF_PROMISC) == 0) {
- set_multicast_start(dev);
- netdev_for_each_mc_addr(ha, dev)
- set_multicast_one(dev, ha->addr);
- set_multicast_finish(dev);
- } else
- set_promiscuous_mode(dev);
-}
-
-static void restart(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- struct fec __iomem *fecp = fep->fec.fecp;
- const struct fs_platform_info *fpi = fep->fpi;
- dma_addr_t rx_bd_base_phys, tx_bd_base_phys;
- int r;
- u32 addrhi, addrlo;
-
- struct mii_bus* mii = fep->phydev->bus;
- struct fec_info* fec_inf = mii->priv;
-
- r = whack_reset(fep->fec.fecp);
- if (r != 0)
- dev_err(fep->dev, "FEC Reset FAILED!\n");
- /*
- * Set station address.
- */
- addrhi = ((u32) dev->dev_addr[0] << 24) |
- ((u32) dev->dev_addr[1] << 16) |
- ((u32) dev->dev_addr[2] << 8) |
- (u32) dev->dev_addr[3];
- addrlo = ((u32) dev->dev_addr[4] << 24) |
- ((u32) dev->dev_addr[5] << 16);
- FW(fecp, addr_low, addrhi);
- FW(fecp, addr_high, addrlo);
-
- /*
- * Reset all multicast.
- */
- FW(fecp, grp_hash_table_high, fep->fec.hthi);
- FW(fecp, grp_hash_table_low, fep->fec.htlo);
-
- /*
- * Set maximum receive buffer size.
- */
- FW(fecp, r_buff_size, PKT_MAXBLR_SIZE);
-#ifdef CONFIG_FS_ENET_MPC5121_FEC
- FW(fecp, r_cntrl, PKT_MAXBUF_SIZE << 16);
-#else
- FW(fecp, r_hash, PKT_MAXBUF_SIZE);
-#endif
-
- /* get physical address */
- rx_bd_base_phys = fep->ring_mem_addr;
- tx_bd_base_phys = rx_bd_base_phys + sizeof(cbd_t) * fpi->rx_ring;
-
- /*
- * Set receive and transmit descriptor base.
- */
- FW(fecp, r_des_start, rx_bd_base_phys);
- FW(fecp, x_des_start, tx_bd_base_phys);
-
- fs_init_bds(dev);
-
- /*
- * Enable big endian and don't care about SDMA FC.
- */
-#ifdef CONFIG_FS_ENET_MPC5121_FEC
- FS(fecp, dma_control, 0xC0000000);
-#else
- FW(fecp, fun_code, 0x78000000);
-#endif
-
- /*
- * Set MII speed.
- */
- FW(fecp, mii_speed, fec_inf->mii_speed);
-
- /*
- * Clear any outstanding interrupt.
- */
- FW(fecp, ievent, 0xffc0);
-#ifndef CONFIG_FS_ENET_MPC5121_FEC
- FW(fecp, ivec, (virq_to_hw(fep->interrupt) / 2) << 29);
-
- FW(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */
-#else
- /*
- * Only set MII mode - do not touch maximum frame length
- * configured before.
- */
- FS(fecp, r_cntrl, FEC_RCNTRL_MII_MODE);
-#endif
- /*
- * adjust to duplex mode
- */
- if (fep->phydev->duplex) {
- FC(fecp, r_cntrl, FEC_RCNTRL_DRT);
- FS(fecp, x_cntrl, FEC_TCNTRL_FDEN); /* FD enable */
- } else {
- FS(fecp, r_cntrl, FEC_RCNTRL_DRT);
- FC(fecp, x_cntrl, FEC_TCNTRL_FDEN); /* FD disable */
- }
-
- /*
- * Enable interrupts we wish to service.
- */
- FW(fecp, imask, FEC_ENET_TXF | FEC_ENET_TXB |
- FEC_ENET_RXF | FEC_ENET_RXB);
-
- /*
- * And last, enable the transmit and receive processing.
- */
- FW(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN);
- FW(fecp, r_des_active, 0x01000000);
-}
-
-static void stop(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- const struct fs_platform_info *fpi = fep->fpi;
- struct fec __iomem *fecp = fep->fec.fecp;
-
- struct fec_info* feci= fep->phydev->bus->priv;
-
- int i;
-
- if ((FR(fecp, ecntrl) & FEC_ECNTRL_ETHER_EN) == 0)
- return; /* already down */
-
- FW(fecp, x_cntrl, 0x01); /* Graceful transmit stop */
- for (i = 0; ((FR(fecp, ievent) & 0x10000000) == 0) &&
- i < FEC_RESET_DELAY; i++)
- udelay(1);
-
- if (i == FEC_RESET_DELAY)
- dev_warn(fep->dev, "FEC timeout on graceful transmit stop\n");
- /*
- * Disable FEC. Let only MII interrupts.
- */
- FW(fecp, imask, 0);
- FC(fecp, ecntrl, FEC_ECNTRL_ETHER_EN);
-
- fs_cleanup_bds(dev);
-
- /* shut down FEC1? that's where the mii bus is */
- if (fpi->has_phy) {
- FS(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */
- FS(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN);
- FW(fecp, ievent, FEC_ENET_MII);
- FW(fecp, mii_speed, feci->mii_speed);
- }
-}
-
-static void napi_clear_rx_event(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- struct fec __iomem *fecp = fep->fec.fecp;
-
- FW(fecp, ievent, FEC_NAPI_RX_EVENT_MSK);
-}
-
-static void napi_enable_rx(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- struct fec __iomem *fecp = fep->fec.fecp;
-
- FS(fecp, imask, FEC_NAPI_RX_EVENT_MSK);
-}
-
-static void napi_disable_rx(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- struct fec __iomem *fecp = fep->fec.fecp;
-
- FC(fecp, imask, FEC_NAPI_RX_EVENT_MSK);
-}
-
-static void rx_bd_done(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- struct fec __iomem *fecp = fep->fec.fecp;
-
- FW(fecp, r_des_active, 0x01000000);
-}
-
-static void tx_kickstart(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- struct fec __iomem *fecp = fep->fec.fecp;
-
- FW(fecp, x_des_active, 0x01000000);
-}
-
-static u32 get_int_events(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- struct fec __iomem *fecp = fep->fec.fecp;
-
- return FR(fecp, ievent) & FR(fecp, imask);
-}
-
-static void clear_int_events(struct net_device *dev, u32 int_events)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- struct fec __iomem *fecp = fep->fec.fecp;
-
- FW(fecp, ievent, int_events);
-}
-
-static void ev_error(struct net_device *dev, u32 int_events)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
-
- dev_warn(fep->dev, "FEC ERROR(s) 0x%x\n", int_events);
-}
-
-static int get_regs(struct net_device *dev, void *p, int *sizep)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
-
- if (*sizep < sizeof(struct fec))
- return -EINVAL;
-
- memcpy_fromio(p, fep->fec.fecp, sizeof(struct fec));
-
- return 0;
-}
-
-static int get_regs_len(struct net_device *dev)
-{
- return sizeof(struct fec);
-}
-
-static void tx_restart(struct net_device *dev)
-{
- /* nothing */
-}
-
-/*************************************************************************/
-
-const struct fs_ops fs_fec_ops = {
- .setup_data = setup_data,
- .cleanup_data = cleanup_data,
- .set_multicast_list = set_multicast_list,
- .restart = restart,
- .stop = stop,
- .napi_clear_rx_event = napi_clear_rx_event,
- .napi_enable_rx = napi_enable_rx,
- .napi_disable_rx = napi_disable_rx,
- .rx_bd_done = rx_bd_done,
- .tx_kickstart = tx_kickstart,
- .get_int_events = get_int_events,
- .clear_int_events = clear_int_events,
- .ev_error = ev_error,
- .get_regs = get_regs,
- .get_regs_len = get_regs_len,
- .tx_restart = tx_restart,
- .allocate_bd = allocate_bd,
- .free_bd = free_bd,
-};
-