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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-scc.c
parent5346ebf6db077d963e9d81af9df290d7f5532492 (diff)
downloadlwn-ec21e2ec367697b4803e82662bdff6c8567745fc.tar.gz
lwn-ec21e2ec367697b4803e82662bdff6c8567745fc.zip
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-scc.c')
-rw-r--r--drivers/net/fs_enet/mac-scc.c484
1 files changed, 0 insertions, 484 deletions
diff --git a/drivers/net/fs_enet/mac-scc.c b/drivers/net/fs_enet/mac-scc.c
deleted file mode 100644
index 22a02a767069..000000000000
--- a/drivers/net/fs_enet/mac-scc.c
+++ /dev/null
@@ -1,484 +0,0 @@
-/*
- * Ethernet on Serial Communications Controller (SCC) driver for Motorola MPC8xx and MPC82xx.
- *
- * Copyright (c) 2003 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_platform.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"
-
-/*************************************************/
-#if defined(CONFIG_CPM1)
-/* for a 8xx __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_out8(addr, x) __raw_writeb(x, addr)
-#define __fs_in32(addr) __raw_readl(addr)
-#define __fs_in16(addr) __raw_readw(addr)
-#define __fs_in8(addr) __raw_readb(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)
-#define __fs_out8(addr, x) out_8(addr, x)
-#define __fs_in8(addr) in_8(addr)
-#endif
-
-/* write, read, set bits, clear bits */
-#define W32(_p, _m, _v) __fs_out32(&(_p)->_m, (_v))
-#define R32(_p, _m) __fs_in32(&(_p)->_m)
-#define S32(_p, _m, _v) W32(_p, _m, R32(_p, _m) | (_v))
-#define C32(_p, _m, _v) W32(_p, _m, R32(_p, _m) & ~(_v))
-
-#define W16(_p, _m, _v) __fs_out16(&(_p)->_m, (_v))
-#define R16(_p, _m) __fs_in16(&(_p)->_m)
-#define S16(_p, _m, _v) W16(_p, _m, R16(_p, _m) | (_v))
-#define C16(_p, _m, _v) W16(_p, _m, R16(_p, _m) & ~(_v))
-
-#define W8(_p, _m, _v) __fs_out8(&(_p)->_m, (_v))
-#define R8(_p, _m) __fs_in8(&(_p)->_m)
-#define S8(_p, _m, _v) W8(_p, _m, R8(_p, _m) | (_v))
-#define C8(_p, _m, _v) W8(_p, _m, R8(_p, _m) & ~(_v))
-
-#define SCC_MAX_MULTICAST_ADDRS 64
-
-/*
- * Delay to wait for SCC reset command to complete (in us)
- */
-#define SCC_RESET_DELAY 50
-
-static inline int scc_cr_cmd(struct fs_enet_private *fep, u32 op)
-{
- const struct fs_platform_info *fpi = fep->fpi;
-
- return cpm_command(fpi->cp_command, op);
-}
-
-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->scc.sccp = of_iomap(ofdev->dev.of_node, 0);
- if (!fep->scc.sccp)
- return -EINVAL;
-
- fep->scc.ep = of_iomap(ofdev->dev.of_node, 1);
- if (!fep->scc.ep) {
- iounmap(fep->scc.sccp);
- return -EINVAL;
- }
-
- return 0;
-}
-
-#define SCC_NAPI_RX_EVENT_MSK (SCCE_ENET_RXF | SCCE_ENET_RXB)
-#define SCC_RX_EVENT (SCCE_ENET_RXF)
-#define SCC_TX_EVENT (SCCE_ENET_TXB)
-#define SCC_ERR_EVENT_MSK (SCCE_ENET_TXE | SCCE_ENET_BSY)
-
-static int setup_data(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
-
- do_pd_setup(fep);
-
- fep->scc.hthi = 0;
- fep->scc.htlo = 0;
-
- fep->ev_napi_rx = SCC_NAPI_RX_EVENT_MSK;
- fep->ev_rx = SCC_RX_EVENT;
- fep->ev_tx = SCC_TX_EVENT | SCCE_ENET_TXE;
- fep->ev_err = SCC_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_mem_addr = cpm_dpalloc((fpi->tx_ring + fpi->rx_ring) *
- sizeof(cbd_t), 8);
- if (IS_ERR_VALUE(fep->ring_mem_addr))
- return -ENOMEM;
-
- fep->ring_base = (void __iomem __force*)
- cpm_dpram_addr(fep->ring_mem_addr);
-
- return 0;
-}
-
-static void free_bd(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
-
- if (fep->ring_base)
- cpm_dpfree(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);
- scc_t __iomem *sccp = fep->scc.sccp;
-
- S16(sccp, scc_psmr, SCC_PSMR_PRO);
-}
-
-static void set_multicast_start(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- scc_enet_t __iomem *ep = fep->scc.ep;
-
- W16(ep, sen_gaddr1, 0);
- W16(ep, sen_gaddr2, 0);
- W16(ep, sen_gaddr3, 0);
- W16(ep, sen_gaddr4, 0);
-}
-
-static void set_multicast_one(struct net_device *dev, const u8 * mac)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- scc_enet_t __iomem *ep = fep->scc.ep;
- u16 taddrh, taddrm, taddrl;
-
- taddrh = ((u16) mac[5] << 8) | mac[4];
- taddrm = ((u16) mac[3] << 8) | mac[2];
- taddrl = ((u16) mac[1] << 8) | mac[0];
-
- W16(ep, sen_taddrh, taddrh);
- W16(ep, sen_taddrm, taddrm);
- W16(ep, sen_taddrl, taddrl);
- scc_cr_cmd(fep, CPM_CR_SET_GADDR);
-}
-
-static void set_multicast_finish(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- scc_t __iomem *sccp = fep->scc.sccp;
- scc_enet_t __iomem *ep = fep->scc.ep;
-
- /* clear promiscuous always */
- C16(sccp, scc_psmr, SCC_PSMR_PRO);
-
- /* if all multi or too many multicasts; just enable all */
- if ((dev->flags & IFF_ALLMULTI) != 0 ||
- netdev_mc_count(dev) > SCC_MAX_MULTICAST_ADDRS) {
-
- W16(ep, sen_gaddr1, 0xffff);
- W16(ep, sen_gaddr2, 0xffff);
- W16(ep, sen_gaddr3, 0xffff);
- W16(ep, sen_gaddr4, 0xffff);
- }
-}
-
-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);
-}
-
-/*
- * This function is called to start or restart the FEC during a link
- * change. This only happens when switching between half and full
- * duplex.
- */
-static void restart(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- scc_t __iomem *sccp = fep->scc.sccp;
- scc_enet_t __iomem *ep = fep->scc.ep;
- const struct fs_platform_info *fpi = fep->fpi;
- u16 paddrh, paddrm, paddrl;
- const unsigned char *mac;
- int i;
-
- C32(sccp, scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
-
- /* clear everything (slow & steady does it) */
- for (i = 0; i < sizeof(*ep); i++)
- __fs_out8((u8 __iomem *)ep + i, 0);
-
- /* point to bds */
- W16(ep, sen_genscc.scc_rbase, fep->ring_mem_addr);
- W16(ep, sen_genscc.scc_tbase,
- fep->ring_mem_addr + sizeof(cbd_t) * fpi->rx_ring);
-
- /* Initialize function code registers for big-endian.
- */
-#ifndef CONFIG_NOT_COHERENT_CACHE
- W8(ep, sen_genscc.scc_rfcr, SCC_EB | SCC_GBL);
- W8(ep, sen_genscc.scc_tfcr, SCC_EB | SCC_GBL);
-#else
- W8(ep, sen_genscc.scc_rfcr, SCC_EB);
- W8(ep, sen_genscc.scc_tfcr, SCC_EB);
-#endif
-
- /* Set maximum bytes per receive buffer.
- * This appears to be an Ethernet frame size, not the buffer
- * fragment size. It must be a multiple of four.
- */
- W16(ep, sen_genscc.scc_mrblr, 0x5f0);
-
- /* Set CRC preset and mask.
- */
- W32(ep, sen_cpres, 0xffffffff);
- W32(ep, sen_cmask, 0xdebb20e3);
-
- W32(ep, sen_crcec, 0); /* CRC Error counter */
- W32(ep, sen_alec, 0); /* alignment error counter */
- W32(ep, sen_disfc, 0); /* discard frame counter */
-
- W16(ep, sen_pads, 0x8888); /* Tx short frame pad character */
- W16(ep, sen_retlim, 15); /* Retry limit threshold */
-
- W16(ep, sen_maxflr, 0x5ee); /* maximum frame length register */
-
- W16(ep, sen_minflr, PKT_MINBUF_SIZE); /* minimum frame length register */
-
- W16(ep, sen_maxd1, 0x000005f0); /* maximum DMA1 length */
- W16(ep, sen_maxd2, 0x000005f0); /* maximum DMA2 length */
-
- /* Clear hash tables.
- */
- W16(ep, sen_gaddr1, 0);
- W16(ep, sen_gaddr2, 0);
- W16(ep, sen_gaddr3, 0);
- W16(ep, sen_gaddr4, 0);
- W16(ep, sen_iaddr1, 0);
- W16(ep, sen_iaddr2, 0);
- W16(ep, sen_iaddr3, 0);
- W16(ep, sen_iaddr4, 0);
-
- /* set address
- */
- mac = dev->dev_addr;
- paddrh = ((u16) mac[5] << 8) | mac[4];
- paddrm = ((u16) mac[3] << 8) | mac[2];
- paddrl = ((u16) mac[1] << 8) | mac[0];
-
- W16(ep, sen_paddrh, paddrh);
- W16(ep, sen_paddrm, paddrm);
- W16(ep, sen_paddrl, paddrl);
-
- W16(ep, sen_pper, 0);
- W16(ep, sen_taddrl, 0);
- W16(ep, sen_taddrm, 0);
- W16(ep, sen_taddrh, 0);
-
- fs_init_bds(dev);
-
- scc_cr_cmd(fep, CPM_CR_INIT_TRX);
-
- W16(sccp, scc_scce, 0xffff);
-
- /* Enable interrupts we wish to service.
- */
- W16(sccp, scc_sccm, SCCE_ENET_TXE | SCCE_ENET_RXF | SCCE_ENET_TXB);
-
- /* Set GSMR_H to enable all normal operating modes.
- * Set GSMR_L to enable Ethernet to MC68160.
- */
- W32(sccp, scc_gsmrh, 0);
- W32(sccp, scc_gsmrl,
- SCC_GSMRL_TCI | SCC_GSMRL_TPL_48 | SCC_GSMRL_TPP_10 |
- SCC_GSMRL_MODE_ENET);
-
- /* Set sync/delimiters.
- */
- W16(sccp, scc_dsr, 0xd555);
-
- /* Set processing mode. Use Ethernet CRC, catch broadcast, and
- * start frame search 22 bit times after RENA.
- */
- W16(sccp, scc_psmr, SCC_PSMR_ENCRC | SCC_PSMR_NIB22);
-
- /* Set full duplex mode if needed */
- if (fep->phydev->duplex)
- S16(sccp, scc_psmr, SCC_PSMR_LPB | SCC_PSMR_FDE);
-
- S32(sccp, scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
-}
-
-static void stop(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- scc_t __iomem *sccp = fep->scc.sccp;
- int i;
-
- for (i = 0; (R16(sccp, scc_sccm) == 0) && i < SCC_RESET_DELAY; i++)
- udelay(1);
-
- if (i == SCC_RESET_DELAY)
- dev_warn(fep->dev, "SCC timeout on graceful transmit stop\n");
-
- W16(sccp, scc_sccm, 0);
- C32(sccp, scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
-
- fs_cleanup_bds(dev);
-}
-
-static void napi_clear_rx_event(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- scc_t __iomem *sccp = fep->scc.sccp;
-
- W16(sccp, scc_scce, SCC_NAPI_RX_EVENT_MSK);
-}
-
-static void napi_enable_rx(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- scc_t __iomem *sccp = fep->scc.sccp;
-
- S16(sccp, scc_sccm, SCC_NAPI_RX_EVENT_MSK);
-}
-
-static void napi_disable_rx(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- scc_t __iomem *sccp = fep->scc.sccp;
-
- C16(sccp, scc_sccm, SCC_NAPI_RX_EVENT_MSK);
-}
-
-static void rx_bd_done(struct net_device *dev)
-{
- /* nothing */
-}
-
-static void tx_kickstart(struct net_device *dev)
-{
- /* nothing */
-}
-
-static u32 get_int_events(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- scc_t __iomem *sccp = fep->scc.sccp;
-
- return (u32) R16(sccp, scc_scce);
-}
-
-static void clear_int_events(struct net_device *dev, u32 int_events)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
- scc_t __iomem *sccp = fep->scc.sccp;
-
- W16(sccp, scc_scce, int_events & 0xffff);
-}
-
-static void ev_error(struct net_device *dev, u32 int_events)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
-
- dev_warn(fep->dev, "SCC 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(scc_t) + sizeof(scc_enet_t __iomem *))
- return -EINVAL;
-
- memcpy_fromio(p, fep->scc.sccp, sizeof(scc_t));
- p = (char *)p + sizeof(scc_t);
-
- memcpy_fromio(p, fep->scc.ep, sizeof(scc_enet_t __iomem *));
-
- return 0;
-}
-
-static int get_regs_len(struct net_device *dev)
-{
- return sizeof(scc_t) + sizeof(scc_enet_t __iomem *);
-}
-
-static void tx_restart(struct net_device *dev)
-{
- struct fs_enet_private *fep = netdev_priv(dev);
-
- scc_cr_cmd(fep, CPM_CR_RESTART_TX);
-}
-
-
-
-/*************************************************************************/
-
-const struct fs_ops fs_scc_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,
-};