Release 4.7 drivers/net/ethernet/smsc/smc91x.h
/*------------------------------------------------------------------------
. smc91x.h - macros for SMSC's 91C9x/91C1xx single-chip Ethernet device.
.
. Copyright (C) 1996 by Erik Stahlman
. Copyright (C) 2001 Standard Microsystems Corporation
. Developed by Simple Network Magic Corporation
. Copyright (C) 2003 Monta Vista Software, Inc.
. Unified SMC91x driver by Nicolas Pitre
.
. This program is free software; you can redistribute it and/or modify
. it under the terms of the GNU General Public License as published by
. the Free Software Foundation; either version 2 of the License, or
. (at your option) any later version.
.
. This program is distributed in the hope that it will be useful,
. but WITHOUT ANY WARRANTY; without even the implied warranty of
. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
. GNU General Public License for more details.
.
. You should have received a copy of the GNU General Public License
. along with this program; if not, see <http://www.gnu.org/licenses/>.
.
. Information contained in this file was obtained from the LAN91C111
. manual from SMC. To get a copy, if you really want one, you can find
. information under www.smsc.com.
.
. Authors
. Erik Stahlman <erik@vt.edu>
. Daris A Nevil <dnevil@snmc.com>
. Nicolas Pitre <nico@fluxnic.net>
.
---------------------------------------------------------------------------*/
#ifndef _SMC91X_H_
#define _SMC91X_H_
#include <linux/dmaengine.h>
#include <linux/smc91x.h>
/*
* Define your architecture specific bus configuration parameters here.
*/
#if defined(CONFIG_ARM)
#include <asm/mach-types.h>
/* Now the bus width is specified in the platform data
* pretend here to support all I/O access types
*/
#define SMC_CAN_USE_8BIT 1
#define SMC_CAN_USE_16BIT 1
#define SMC_CAN_USE_32BIT 1
#define SMC_NOWAIT 1
#define SMC_IO_SHIFT (lp->io_shift)
#define SMC_inb(a, r) readb((a) + (r))
#define SMC_inw(a, r) readw((a) + (r))
#define SMC_inl(a, r) readl((a) + (r))
#define SMC_outb(v, a, r) writeb(v, (a) + (r))
#define SMC_outl(v, a, r) writel(v, (a) + (r))
#define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
#define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
#define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
#define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
#define SMC_IRQ_FLAGS (-1)
/* from resource */
/* We actually can't write halfwords properly if not word aligned */
static inline void SMC_outw(u16 val, void __iomem *ioaddr, int reg)
{
if ((machine_is_mainstone() || machine_is_stargate2() ||
machine_is_pxa_idp()) && reg & 2) {
unsigned int v = val << 16;
v |= readl(ioaddr + (reg & ~2)) & 0xffff;
writel(v, ioaddr + (reg & ~2));
} else {
writew(val, ioaddr + reg);
}
}
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#elif defined(CONFIG_SH_SH4202_MICRODEV)
#define SMC_CAN_USE_8BIT 0
#define SMC_CAN_USE_16BIT 1
#define SMC_CAN_USE_32BIT 0
#define SMC_inb(a, r) inb((a) + (r) - 0xa0000000)
#define SMC_inw(a, r) inw((a) + (r) - 0xa0000000)
#define SMC_inl(a, r) inl((a) + (r) - 0xa0000000)
#define SMC_outb(v, a, r) outb(v, (a) + (r) - 0xa0000000)
#define SMC_outw(v, a, r) outw(v, (a) + (r) - 0xa0000000)
#define SMC_outl(v, a, r) outl(v, (a) + (r) - 0xa0000000)
#define SMC_insl(a, r, p, l) insl((a) + (r) - 0xa0000000, p, l)
#define SMC_outsl(a, r, p, l) outsl((a) + (r) - 0xa0000000, p, l)
#define SMC_insw(a, r, p, l) insw((a) + (r) - 0xa0000000, p, l)
#define SMC_outsw(a, r, p, l) outsw((a) + (r) - 0xa0000000, p, l)
#define SMC_IRQ_FLAGS (0)
#elif defined(CONFIG_M32R)
#define SMC_CAN_USE_8BIT 0
#define SMC_CAN_USE_16BIT 1
#define SMC_CAN_USE_32BIT 0
#define SMC_inb(a, r) inb(((u32)a) + (r))
#define SMC_inw(a, r) inw(((u32)a) + (r))
#define SMC_outb(v, a, r) outb(v, ((u32)a) + (r))
#define SMC_outw(v, a, r) outw(v, ((u32)a) + (r))
#define SMC_insw(a, r, p, l) insw(((u32)a) + (r), p, l)
#define SMC_outsw(a, r, p, l) outsw(((u32)a) + (r), p, l)
#define SMC_IRQ_FLAGS (0)
#define RPC_LSA_DEFAULT RPC_LED_TX_RX
#define RPC_LSB_DEFAULT RPC_LED_100_10
#elif defined(CONFIG_MN10300)
/*
* MN10300/AM33 configuration
*/
#include <unit/smc91111.h>
#elif defined(CONFIG_ATARI)
#define SMC_CAN_USE_8BIT 1
#define SMC_CAN_USE_16BIT 1
#define SMC_CAN_USE_32BIT 1
#define SMC_NOWAIT 1
#define SMC_inb(a, r) readb((a) + (r))
#define SMC_inw(a, r) readw((a) + (r))
#define SMC_inl(a, r) readl((a) + (r))
#define SMC_outb(v, a, r) writeb(v, (a) + (r))
#define SMC_outw(v, a, r) writew(v, (a) + (r))
#define SMC_outl(v, a, r) writel(v, (a) + (r))
#define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
#define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
#define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
#define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
#define RPC_LSA_DEFAULT RPC_LED_100_10
#define RPC_LSB_DEFAULT RPC_LED_TX_RX
#elif defined(CONFIG_COLDFIRE)
#define SMC_CAN_USE_8BIT 0
#define SMC_CAN_USE_16BIT 1
#define SMC_CAN_USE_32BIT 0
#define SMC_NOWAIT 1
static inline void mcf_insw(void *a, unsigned char *p, int l)
{
u16 *wp = (u16 *) p;
while (l-- > 0)
*wp++ = readw(a);
}
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static inline void mcf_outsw(void *a, unsigned char *p, int l)
{
u16 *wp = (u16 *) p;
while (l-- > 0)
writew(*wp++, a);
}
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#define SMC_inw(a, r) _swapw(readw((a) + (r)))
#define SMC_outw(v, a, r) writew(_swapw(v), (a) + (r))
#define SMC_insw(a, r, p, l) mcf_insw(a + r, p, l)
#define SMC_outsw(a, r, p, l) mcf_outsw(a + r, p, l)
#define SMC_IRQ_FLAGS 0
#elif defined(CONFIG_H8300)
#define SMC_CAN_USE_8BIT 1
#define SMC_CAN_USE_16BIT 0
#define SMC_CAN_USE_32BIT 0
#define SMC_NOWAIT 0
#define SMC_inb(a, r) ioread8((a) + (r))
#define SMC_outb(v, a, r) iowrite8(v, (a) + (r))
#define SMC_insb(a, r, p, l) ioread8_rep((a) + (r), p, l)
#define SMC_outsb(a, r, p, l) iowrite8_rep((a) + (r), p, l)
#else
/*
* Default configuration
*/
#define SMC_CAN_USE_8BIT 1
#define SMC_CAN_USE_16BIT 1
#define SMC_CAN_USE_32BIT 1
#define SMC_NOWAIT 1
#define SMC_IO_SHIFT (lp->io_shift)
#define SMC_inb(a, r) ioread8((a) + (r))
#define SMC_inw(a, r) ioread16((a) + (r))
#define SMC_inl(a, r) ioread32((a) + (r))
#define SMC_outb(v, a, r) iowrite8(v, (a) + (r))
#define SMC_outw(v, a, r) iowrite16(v, (a) + (r))
#define SMC_outl(v, a, r) iowrite32(v, (a) + (r))
#define SMC_insw(a, r, p, l) ioread16_rep((a) + (r), p, l)
#define SMC_outsw(a, r, p, l) iowrite16_rep((a) + (r), p, l)
#define SMC_insl(a, r, p, l) ioread32_rep((a) + (r), p, l)
#define SMC_outsl(a, r, p, l) iowrite32_rep((a) + (r), p, l)
#define RPC_LSA_DEFAULT RPC_LED_100_10
#define RPC_LSB_DEFAULT RPC_LED_TX_RX
#endif
/* store this information for the driver.. */
struct smc_local {
/*
* If I have to wait until memory is available to send a
* packet, I will store the skbuff here, until I get the
* desired memory. Then, I'll send it out and free it.
*/
struct sk_buff *pending_tx_skb;
struct tasklet_struct tx_task;
struct gpio_desc *power_gpio;
struct gpio_desc *reset_gpio;
/* version/revision of the SMC91x chip */
int version;
/* Contains the current active transmission mode */
int tcr_cur_mode;
/* Contains the current active receive mode */
int rcr_cur_mode;
/* Contains the current active receive/phy mode */
int rpc_cur_mode;
int ctl_rfduplx;
int ctl_rspeed;
u32 msg_enable;
u32 phy_type;
struct mii_if_info mii;
/* work queue */
struct work_struct phy_configure;
struct net_device *dev;
int work_pending;
spinlock_t lock;
#ifdef CONFIG_ARCH_PXA
/* DMA needs the physical address of the chip */
u_long physaddr;
struct device *device;
#endif
struct dma_chan *dma_chan;
void __iomem *base;
void __iomem *datacs;
/* the low address lines on some platforms aren't connected... */
int io_shift;
struct smc91x_platdata cfg;
};
#define SMC_8BIT(p) ((p)->cfg.flags & SMC91X_USE_8BIT)
#define SMC_16BIT(p) ((p)->cfg.flags & SMC91X_USE_16BIT)
#define SMC_32BIT(p) ((p)->cfg.flags & SMC91X_USE_32BIT)
#ifdef CONFIG_ARCH_PXA
/*
* Let's use the DMA engine on the XScale PXA2xx for RX packets. This is
* always happening in irq context so no need to worry about races. TX is
* different and probably not worth it for that reason, and not as critical
* as RX which can overrun memory and lose packets.
*/
#include <linux/dma-mapping.h>
#include <linux/dma/pxa-dma.h>
#ifdef SMC_insl
#undef SMC_insl
#define SMC_insl(a, r, p, l) \
smc_pxa_dma_insl(a, lp, r, dev->dma, p, l)
static inline void
smc_pxa_dma_inpump(struct smc_local *lp, u_char *buf, int len)
{
dma_addr_t dmabuf;
struct dma_async_tx_descriptor *tx;
dma_cookie_t cookie;
enum dma_status status;
struct dma_tx_state state;
dmabuf = dma_map_single(lp->device, buf, len, DMA_FROM_DEVICE);
tx = dmaengine_prep_slave_single(lp->dma_chan, dmabuf, len,
DMA_DEV_TO_MEM, 0);
if (tx) {
cookie = dmaengine_submit(tx);
dma_async_issue_pending(lp->dma_chan);
do {
status = dmaengine_tx_status(lp->dma_chan, cookie,
&state);
cpu_relax();
} while (status != DMA_COMPLETE && status != DMA_ERROR &&
state.residue);
dmaengine_terminate_all(lp->dma_chan);
}
dma_unmap_single(lp->device, dmabuf, len, DMA_FROM_DEVICE);
}
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static inline void
smc_pxa_dma_insl(void __iomem *ioaddr, struct smc_local *lp, int reg, int dma,
u_char *buf, int len)
{
struct dma_slave_config config;
int ret;
/* fallback if no DMA available */
if (!lp->dma_chan) {
readsl(ioaddr + reg, buf, len);
return;
}
/* 64 bit alignment is required for memory to memory DMA */
if ((long)buf & 4) {
*((u32 *)buf) = SMC_inl(ioaddr, reg);
buf += 4;
len--;
}
memset(&config, 0, sizeof(config));
config.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
config.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
config.src_addr = lp->physaddr + reg;
config.dst_addr = lp->physaddr + reg;
config.src_maxburst = 32;
config.dst_maxburst = 32;
ret = dmaengine_slave_config(lp->dma_chan, &config);
if (ret) {
dev_err(lp->device, "dma channel configuration failed: %d\n",
ret);
return;
}
len *= 4;
smc_pxa_dma_inpump(lp, buf, len);
}
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#endif
#ifdef SMC_insw
#undef SMC_insw
#define SMC_insw(a, r, p, l) \
smc_pxa_dma_insw(a, lp, r, dev->dma, p, l)
static inline void
smc_pxa_dma_insw(void __iomem *ioaddr, struct smc_local *lp, int reg, int dma,
u_char *buf, int len)
{
struct dma_slave_config config;
int ret;
/* fallback if no DMA available */
if (!lp->dma_chan) {
readsw(ioaddr + reg, buf, len);
return;
}
/* 64 bit alignment is required for memory to memory DMA */
while ((long)buf & 6) {
*((u16 *)buf) = SMC_inw(ioaddr, reg);
buf += 2;
len--;
}
memset(&config, 0, sizeof(config));
config.src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
config.dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
config.src_addr = lp->physaddr + reg;
config.dst_addr = lp->physaddr + reg;
config.src_maxburst = 32;
config.dst_maxburst = 32;
ret = dmaengine_slave_config(lp->dma_chan, &config);
if (ret) {
dev_err(lp->device, "dma channel configuration failed: %d\n",
ret);
return;
}
len *= 2;
smc_pxa_dma_inpump(lp, buf, len);
}
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#endif
#endif /* CONFIG_ARCH_PXA */
/*
* Everything a particular hardware setup needs should have been defined
* at this point. Add stubs for the undefined cases, mainly to avoid
* compilation warnings since they'll be optimized away, or to prevent buggy
* use of them.
*/
#if ! SMC_CAN_USE_32BIT
#define SMC_inl(ioaddr, reg) ({ BUG(); 0; })
#define SMC_outl(x, ioaddr, reg) BUG()
#define SMC_insl(a, r, p, l) BUG()
#define SMC_outsl(a, r, p, l) BUG()
#endif
#if !defined(SMC_insl) || !defined(SMC_outsl)
#define SMC_insl(a, r, p, l) BUG()
#define SMC_outsl(a, r, p, l) BUG()
#endif
#if ! SMC_CAN_USE_16BIT
/*
* Any 16-bit access is performed with two 8-bit accesses if the hardware
* can't do it directly. Most registers are 16-bit so those are mandatory.
*/
#define SMC_outw(x, ioaddr, reg) \
do { \
unsigned int __val16 = (x); \
SMC_outb( __val16, ioaddr, reg ); \
SMC_outb( __val16 >> 8, ioaddr, reg + (1 << SMC_IO_SHIFT));\
} while (0)
#define SMC_inw(ioaddr, reg) \
({ \
unsigned int __val16; \
__val16 = SMC_inb( ioaddr, reg ); \
__val16 |= SMC_inb( ioaddr, reg + (1 << SMC_IO_SHIFT)) << 8; \
__val16; \
})
#define SMC_insw(a, r, p, l) BUG()
#define SMC_outsw(a, r, p, l) BUG()
#endif
#if !defined(SMC_insw) || !defined(SMC_outsw)
#define SMC_insw(a, r, p, l) BUG()
#define SMC_outsw(a, r, p, l) BUG()
#endif
#if ! SMC_CAN_USE_8BIT
#define SMC_inb(ioaddr, reg) ({ BUG(); 0; })
#define SMC_outb(x, ioaddr, reg) BUG()
#define SMC_insb(a, r, p, l) BUG()
#define SMC_outsb(a, r, p, l) BUG()
#endif
#if !defined(SMC_insb) || !defined(SMC_outsb)
#define SMC_insb(a, r, p, l) BUG()
#define SMC_outsb(a, r, p, l) BUG()
#endif
#ifndef SMC_CAN_USE_DATACS
#define SMC_CAN_USE_DATACS 0
#endif
#ifndef SMC_IO_SHIFT
#define SMC_IO_SHIFT 0
#endif
#ifndef SMC_IRQ_FLAGS
#define SMC_IRQ_FLAGS IRQF_TRIGGER_RISING
#endif
#ifndef SMC_INTERRUPT_PREAMBLE
#define SMC_INTERRUPT_PREAMBLE
#endif
/* Because of bank switching, the LAN91x uses only 16 I/O ports */
#define SMC_IO_EXTENT (16 << SMC_IO_SHIFT)
#define SMC_DATA_EXTENT (4)
/*
. Bank Select Register:
.
. yyyy yyyy 0000 00xx
. xx = bank number
. yyyy yyyy = 0x33, for identification purposes.
*/
#define BANK_SELECT (14 << SMC_IO_SHIFT)
// Transmit Control Register
/* BANK 0 */
#define TCR_REG(lp) SMC_REG(lp, 0x0000, 0)
#define TCR_ENABLE 0x0001
// When 1 we can transmit
#define TCR_LOOP 0x0002
// Controls output pin LBK
#define TCR_FORCOL 0x0004
// When 1 will force a collision
#define TCR_PAD_EN 0x0080
// When 1 will pad tx frames < 64 bytes w/0
#define TCR_NOCRC 0x0100
// When 1 will not append CRC to tx frames
#define TCR_MON_CSN 0x0400
// When 1 tx monitors carrier
#define TCR_FDUPLX 0x0800
// When 1 enables full duplex operation
#define TCR_STP_SQET 0x1000
// When 1 stops tx if Signal Quality Error
#define TCR_EPH_LOOP 0x2000
// When 1 enables EPH block loopback
#define TCR_SWFDUP 0x8000
// When 1 enables Switched Full Duplex mode
#define TCR_CLEAR 0
/* do NOTHING */
/* the default settings for the TCR register : */
#define TCR_DEFAULT (TCR_ENABLE | TCR_PAD_EN)
// EPH Status Register
/* BANK 0 */
#define EPH_STATUS_REG(lp) SMC_REG(lp, 0x0002, 0)
#define ES_TX_SUC 0x0001
// Last TX was successful
#define ES_SNGL_COL 0x0002
// Single collision detected for last tx
#define ES_MUL_COL 0x0004
// Multiple collisions detected for last tx
#define ES_LTX_MULT 0x0008
// Last tx was a multicast
#define ES_16COL 0x0010
// 16 Collisions Reached
#define ES_SQET 0x0020
// Signal Quality Error Test
#define ES_LTXBRD 0x0040
// Last tx was a broadcast
#define ES_TXDEFR 0x0080
// Transmit Deferred
#define ES_LATCOL 0x0200
// Late collision detected on last tx
#define ES_LOSTCARR 0x0400
// Lost Carrier Sense
#define ES_EXC_DEF 0x0800
// Excessive Deferral
#define ES_CTR_ROL 0x1000
// Counter Roll Over indication
#define ES_LINK_OK 0x4000
// Driven by inverted value of nLNK pin
#define ES_TXUNRN 0x8000
// Tx Underrun
// Receive Control Register
/* BANK 0 */
#define RCR_REG(lp) SMC_REG(lp, 0x0004, 0)
#define RCR_RX_ABORT 0x0001
// Set if a rx frame was aborted
#define RCR_PRMS 0x0002
// Enable promiscuous mode
#define RCR_ALMUL 0x0004
// When set accepts all multicast frames
#define RCR_RXEN 0x0100
// IFF this is set, we can receive packets
#define RCR_STRIP_CRC 0x0200
// When set strips CRC from rx packets
#define RCR_ABORT_ENB 0x0200
// When set will abort rx on collision
#define RCR_FILT_CAR 0x0400
// When set filters leading 12 bit s of carrier
#define RCR_SOFTRST 0x8000
// resets the chip
/* the normal settings for the RCR register : */
#define RCR_DEFAULT (RCR_STRIP_CRC | RCR_RXEN)
#define RCR_CLEAR 0x0
// set it to a base state
// Counter Register
/* BANK 0 */
#define COUNTER_REG(lp) SMC_REG(lp, 0x0006, 0)
// Memory Information Register
/* BANK 0 */
#define MIR_REG(lp) SMC_REG(lp, 0x0008, 0)
// Receive/Phy Control Register
/* BANK 0 */
#define RPC_REG(lp) SMC_REG(lp, 0x000A, 0)
#define RPC_SPEED 0x2000
// When 1 PHY is in 100Mbps mode.
#define RPC_DPLX 0x1000
// When 1 PHY is in Full-Duplex Mode
#define RPC_ANEG 0x0800
// When 1 PHY is in Auto-Negotiate Mode
#define RPC_LSXA_SHFT 5
// Bits to shift LS2A,LS1A,LS0A to lsb
#define RPC_LSXB_SHFT 2
// Bits to get LS2B,LS1B,LS0B to lsb
#ifndef RPC_LSA_DEFAULT
#define RPC_LSA_DEFAULT RPC_LED_100
#endif
#ifndef RPC_LSB_DEFAULT
#define RPC_LSB_DEFAULT RPC_LED_FD
#endif
#define RPC_DEFAULT (RPC_ANEG | RPC_SPEED | RPC_DPLX)
/* Bank 0 0x0C is reserved */
// Bank Select Register
/* All Banks */
#define BSR_REG 0x000E
// Configuration Reg
/* BANK 1 */
#define CONFIG_REG(lp) SMC_REG(lp, 0x0000, 1)
#define CONFIG_EXT_PHY 0x0200
// 1=external MII, 0=internal Phy
#define CONFIG_GPCNTRL 0x0400
// Inverse value drives pin nCNTRL
#define CONFIG_NO_WAIT 0x1000
// When 1 no extra wait states on ISA bus
#define CONFIG_EPH_POWER_EN 0x8000
// When 0 EPH is placed into low power mode.
// Default is powered-up, Internal Phy, Wait States, and pin nCNTRL=low
#define CONFIG_DEFAULT (CONFIG_EPH_POWER_EN)
// Base Address Register
/* BANK 1 */
#define BASE_REG(lp) SMC_REG(lp, 0x0002, 1)
// Individual Address Registers
/* BANK 1 */
#define ADDR0_REG(lp) SMC_REG(lp, 0x0004, 1)
#define ADDR1_REG(lp) SMC_REG(lp, 0x0006, 1)
#define ADDR2_REG(lp) SMC_REG(lp, 0x0008, 1)
// General Purpose Register
/* BANK 1 */
#define GP_REG(lp) SMC_REG(lp, 0x000A, 1)
// Control Register
/* BANK 1 */
#define CTL_REG(lp) SMC_REG(lp, 0x000C, 1)
#define CTL_RCV_BAD 0x4000
// When 1 bad CRC packets are received
#define CTL_AUTO_RELEASE 0x0800
// When 1 tx pages are released automatically
#define CTL_LE_ENABLE 0x0080
// When 1 enables Link Error interrupt
#define CTL_CR_ENABLE 0x0040
// When 1 enables Counter Rollover interrupt
#define CTL_TE_ENABLE 0x0020
// When 1 enables Transmit Error interrupt
#define CTL_EEPROM_SELECT 0x0004
// Controls EEPROM reload & store
#define CTL_RELOAD 0x0002
// When set reads EEPROM into registers
#define CTL_STORE 0x0001
// When set stores registers into EEPROM
// MMU Command Register
/* BANK 2 */
#define MMU_CMD_REG(lp) SMC_REG(lp, 0x0000, 2)
#define MC_BUSY 1
// When 1 the last release has not completed
#define MC_NOP (0<<5)
// No Op
#define MC_ALLOC (1<<5)
// OR with number of 256 byte packets
#define MC_RESET (2<<5)
// Reset MMU to initial state
#define MC_REMOVE (3<<5)
// Remove the current rx packet
#define MC_RELEASE (4<<5)
// Remove and release the current rx packet
#define MC_FREEPKT (5<<5)
// Release packet in PNR register
#define MC_ENQUEUE (6<<5)
// Enqueue the packet for transmit
#define MC_RSTTXFIFO (7<<5)
// Reset the TX FIFOs
// Packet Number Register
/* BANK 2 */
#define PN_REG(lp) SMC_REG(lp, 0x0002, 2)
// Allocation Result Register
/* BANK 2 */
#define AR_REG(lp) SMC_REG(lp, 0x0003, 2)
#define AR_FAILED 0x80
// Alocation Failed
// TX FIFO Ports Register
/* BANK 2 */
#define TXFIFO_REG(lp) SMC_REG(lp, 0x0004, 2)
#define TXFIFO_TEMPTY 0x80
// TX FIFO Empty
// RX FIFO Ports Register
/* BANK 2 */
#define RXFIFO_REG(lp) SMC_REG(lp, 0x0005, 2)
#define RXFIFO_REMPTY 0x80
// RX FIFO Empty
#define FIFO_REG(lp) SMC_REG(lp, 0x0004, 2)
// Pointer Register
/* BANK 2 */
#define PTR_REG(lp) SMC_REG(lp, 0x0006, 2)
#define PTR_RCV 0x8000
// 1=Receive area, 0=Transmit area
#define PTR_AUTOINC 0x4000
// Auto increment the pointer on each access
#define PTR_READ 0x2000
// When 1 the operation is a read
// Data Register
/* BANK 2 */
#define DATA_REG(lp) SMC_REG(lp, 0x0008, 2)
// Interrupt Status/Acknowledge Register
/* BANK 2 */
#define INT_REG(lp) SMC_REG(lp, 0x000C, 2)
// Interrupt Mask Register
/* BANK 2 */
#define IM_REG(lp) SMC_REG(lp, 0x000D, 2)
#define IM_MDINT 0x80
// PHY MI Register 18 Interrupt
#define IM_ERCV_INT 0x40
// Early Receive Interrupt
#define IM_EPH_INT 0x20
// Set by Ethernet Protocol Handler section
#define IM_RX_OVRN_INT 0x10
// Set by Receiver Overruns
#define IM_ALLOC_INT 0x08
// Set when allocation request is completed
#define IM_TX_EMPTY_INT 0x04
// Set if the TX FIFO goes empty
#define IM_TX_INT 0x02
// Transmit Interrupt
#define IM_RCV_INT 0x01
// Receive Interrupt
// Multicast Table Registers
/* BANK 3 */
#define MCAST_REG1(lp) SMC_REG(lp, 0x0000, 3)
#define MCAST_REG2(lp) SMC_REG(lp, 0x0002, 3)
#define MCAST_REG3(lp) SMC_REG(lp, 0x0004, 3)
#define MCAST_REG4(lp) SMC_REG(lp, 0x0006, 3)
// Management Interface Register (MII)
/* BANK 3 */
#define MII_REG(lp) SMC_REG(lp, 0x0008, 3)
#define MII_MSK_CRS100 0x4000
// Disables CRS100 detection during tx half dup
#define MII_MDOE 0x0008
// MII Output Enable
#define MII_MCLK 0x0004
// MII Clock, pin MDCLK
#define MII_MDI 0x0002
// MII Input, pin MDI
#define MII_MDO 0x0001
// MII Output, pin MDO
// Revision Register
/* BANK 3 */
/* ( hi: chip id low: rev # ) */
#define REV_REG(lp) SMC_REG(lp, 0x000A, 3)
// Early RCV Register
/* BANK 3 */
/* this is NOT on SMC9192 */
#define ERCV_REG(lp) SMC_REG(lp, 0x000C, 3)
#define ERCV_RCV_DISCRD 0x0080
// When 1 discards a packet being received
#define ERCV_THRESHOLD 0x001F
// ERCV Threshold Mask
// External Register
/* BANK 7 */
#define EXT_REG(lp) SMC_REG(lp, 0x0000, 7)
#define CHIP_9192 3
#define CHIP_9194 4
#define CHIP_9195 5
#define CHIP_9196 6
#define CHIP_91100 7
#define CHIP_91100FD 8
#define CHIP_91111FD 9
static const char * chip_ids[ 16 ] = {
NULL, NULL, NULL,
/* 3 */ "SMC91C90/91C92",
/* 4 */ "SMC91C94",
/* 5 */ "SMC91C95",
/* 6 */ "SMC91C96",
/* 7 */ "SMC91C100",
/* 8 */ "SMC91C100FD",
/* 9 */ "SMC91C11xFD",
NULL, NULL, NULL,
NULL, NULL, NULL};
/*
. Receive status bits
*/
#define RS_ALGNERR 0x8000
#define RS_BRODCAST 0x4000
#define RS_BADCRC 0x2000
#define RS_ODDFRAME 0x1000
#define RS_TOOLONG 0x0800
#define RS_TOOSHORT 0x0400
#define RS_MULTICAST 0x0001
#define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
/*
* PHY IDs
* LAN83C183 == LAN91C111 Internal PHY
*/
#define PHY_LAN83C183 0x0016f840
#define PHY_LAN83C180 0x02821c50
/*
* PHY Register Addresses (LAN91C111 Internal PHY)
*
* Generic PHY registers can be found in <linux/mii.h>
*
* These phy registers are specific to our on-board phy.
*/
// PHY Configuration Register 1
#define PHY_CFG1_REG 0x10
#define PHY_CFG1_LNKDIS 0x8000
// 1=Rx Link Detect Function disabled
#define PHY_CFG1_XMTDIS 0x4000
// 1=TP Transmitter Disabled
#define PHY_CFG1_XMTPDN 0x2000
// 1=TP Transmitter Powered Down
#define PHY_CFG1_BYPSCR 0x0400
// 1=Bypass scrambler/descrambler
#define PHY_CFG1_UNSCDS 0x0200
// 1=Unscramble Idle Reception Disable
#define PHY_CFG1_EQLZR 0x0100
// 1=Rx Equalizer Disabled
#define PHY_CFG1_CABLE 0x0080
// 1=STP(150ohm), 0=UTP(100ohm)
#define PHY_CFG1_RLVL0 0x0040
// 1=Rx Squelch level reduced by 4.5db
#define PHY_CFG1_TLVL_SHIFT 2
// Transmit Output Level Adjust
#define PHY_CFG1_TLVL_MASK 0x003C
#define PHY_CFG1_TRF_MASK 0x0003
// Transmitter Rise/Fall time
// PHY Configuration Register 2
#define PHY_CFG2_REG 0x11
#define PHY_CFG2_APOLDIS 0x0020
// 1=Auto Polarity Correction disabled
#define PHY_CFG2_JABDIS 0x0010
// 1=Jabber disabled
#define PHY_CFG2_MREG 0x0008
// 1=Multiple register access (MII mgt)
#define PHY_CFG2_INTMDIO 0x0004
// 1=Interrupt signaled with MDIO pulseo
// PHY Status Output (and Interrupt status) Register
#define PHY_INT_REG 0x12
// Status Output (Interrupt Status)
#define PHY_INT_INT 0x8000
// 1=bits have changed since last read
#define PHY_INT_LNKFAIL 0x4000
// 1=Link Not detected
#define PHY_INT_LOSSSYNC 0x2000
// 1=Descrambler has lost sync
#define PHY_INT_CWRD 0x1000
// 1=Invalid 4B5B code detected on rx
#define PHY_INT_SSD 0x0800
// 1=No Start Of Stream detected on rx
#define PHY_INT_ESD 0x0400
// 1=No End Of Stream detected on rx
#define PHY_INT_RPOL 0x0200
// 1=Reverse Polarity detected
#define PHY_INT_JAB 0x0100
// 1=Jabber detected
#define PHY_INT_SPDDET 0x0080
// 1=100Base-TX mode, 0=10Base-T mode
#define PHY_INT_DPLXDET 0x0040
// 1=Device in Full Duplex
// PHY Interrupt/Status Mask Register
#define PHY_MASK_REG 0x13
// Interrupt Mask
// Uses the same bit definitions as PHY_INT_REG
/*
* SMC91C96 ethernet config and status registers.
* These are in the "attribute" space.
*/
#define ECOR 0x8000
#define ECOR_RESET 0x80
#define ECOR_LEVEL_IRQ 0x40
#define ECOR_WR_ATTRIB 0x04
#define ECOR_ENABLE 0x01
#define ECSR 0x8002
#define ECSR_IOIS8 0x20
#define ECSR_PWRDWN 0x04
#define ECSR_INT 0x02
#define ATTRIB_SIZE ((64*1024) << SMC_IO_SHIFT)
/*
* Macros to abstract register access according to the data bus
* capabilities. Please use those and not the in/out primitives.
* Note: the following macros do *not* select the bank -- this must
* be done separately as needed in the main code. The SMC_REG() macro
* only uses the bank argument for debugging purposes (when enabled).
*
* Note: despite inline functions being safer, everything leading to this
* should preferably be macros to let BUG() display the line number in
* the core source code since we're interested in the top call site
* not in any inline function location.
*/
#if SMC_DEBUG > 0
#define SMC_REG(lp, reg, bank) \
({ \
int __b = SMC_CURRENT_BANK(lp); \
if (unlikely((__b & ~0xf0) != (0x3300 | bank))) { \
pr_err("%s: bank reg screwed (0x%04x)\n", \
CARDNAME, __b); \
BUG(); \
} \
reg<<SMC_IO_SHIFT; \
})
#else
#define SMC_REG(lp, reg, bank) (reg<<SMC_IO_SHIFT)
#endif
/*
* Hack Alert: Some setups just can't write 8 or 16 bits reliably when not
* aligned to a 32 bit boundary. I tell you that does exist!
* Fortunately the affected register accesses can be easily worked around
* since we can write zeroes to the preceding 16 bits without adverse
* effects and use a 32-bit access.
*
* Enforce it on any 32-bit capable setup for now.
*/
#define SMC_MUST_ALIGN_WRITE(lp) SMC_32BIT(lp)
#define SMC_GET_PN(lp) \
(SMC_8BIT(lp) ? (SMC_inb(ioaddr, PN_REG(lp))) \
: (SMC_inw(ioaddr, PN_REG(lp)) & 0xFF))
#define SMC_SET_PN(lp, x) \
do { \
if (SMC_MUST_ALIGN_WRITE(lp)) \
SMC_outl((x)<<16, ioaddr, SMC_REG(lp, 0, 2)); \
else if (SMC_8BIT(lp)) \
SMC_outb(x, ioaddr, PN_REG(lp)); \
else \
SMC_outw(x, ioaddr, PN_REG(lp)); \
} while (0)
#define SMC_GET_AR(lp) \
(SMC_8BIT(lp) ? (SMC_inb(ioaddr, AR_REG(lp))) \
: (SMC_inw(ioaddr, PN_REG(lp)) >> 8))
#define SMC_GET_TXFIFO(lp) \
(SMC_8BIT(lp) ? (SMC_inb(ioaddr, TXFIFO_REG(lp))) \
: (SMC_inw(ioaddr, TXFIFO_REG(lp)) & 0xFF))
#define SMC_GET_RXFIFO(lp) \
(SMC_8BIT(lp) ? (SMC_inb(ioaddr, RXFIFO_REG(lp))) \
: (SMC_inw(ioaddr, TXFIFO_REG(lp)) >> 8))
#define SMC_GET_INT(lp) \
(SMC_8BIT(lp) ? (SMC_inb(ioaddr, INT_REG(lp))) \
: (SMC_inw(ioaddr, INT_REG(lp)) & 0xFF))
#define SMC_ACK_INT(lp, x) \
do { \
if (SMC_8BIT(lp)) \
SMC_outb(x, ioaddr, INT_REG(lp)); \
else { \
unsigned long __flags; \
int __mask; \
local_irq_save(__flags); \
__mask = SMC_inw(ioaddr, INT_REG(lp)) & ~0xff; \
SMC_outw(__mask | (x), ioaddr, INT_REG(lp)); \
local_irq_restore(__flags); \
} \
} while (0)
#define SMC_GET_INT_MASK(lp) \
(SMC_8BIT(lp) ? (SMC_inb(ioaddr, IM_REG(lp))) \
: (SMC_inw(ioaddr, INT_REG(lp)) >> 8))
#define SMC_SET_INT_MASK(lp, x) \
do { \
if (SMC_8BIT(lp)) \
SMC_outb(x, ioaddr, IM_REG(lp)); \
else \
SMC_outw((x) << 8, ioaddr, INT_REG(lp)); \
} while (0)
#define SMC_CURRENT_BANK(lp) SMC_inw(ioaddr, BANK_SELECT)
#define SMC_SELECT_BANK(lp, x) \
do { \
if (SMC_MUST_ALIGN_WRITE(lp)) \
SMC_outl((x)<<16, ioaddr, 12<<SMC_IO_SHIFT); \
else \
SMC_outw(x, ioaddr, BANK_SELECT); \
} while (0)
#define SMC_GET_BASE(lp) SMC_inw(ioaddr, BASE_REG(lp))
#define SMC_SET_BASE(lp, x) SMC_outw(x, ioaddr, BASE_REG(lp))
#define SMC_GET_CONFIG(lp) SMC_inw(ioaddr, CONFIG_REG(lp))
#define SMC_SET_CONFIG(lp, x) SMC_outw(x, ioaddr, CONFIG_REG(lp))
#define SMC_GET_COUNTER(lp) SMC_inw(ioaddr, COUNTER_REG(lp))
#define SMC_GET_CTL(lp) SMC_inw(ioaddr, CTL_REG(lp))
#define SMC_SET_CTL(lp, x) SMC_outw(x, ioaddr, CTL_REG(lp))
#define SMC_GET_MII(lp) SMC_inw(ioaddr, MII_REG(lp))
#define SMC_GET_GP(lp) SMC_inw(ioaddr, GP_REG(lp))
#define SMC_SET_GP(lp, x) \
do { \
if (SMC_MUST_ALIGN_WRITE(lp)) \
SMC_outl((x)<<16, ioaddr, SMC_REG(lp, 8, 1)); \
else \
SMC_outw(x, ioaddr, GP_REG(lp)); \
} while (0)
#define SMC_SET_MII(lp, x) SMC_outw(x, ioaddr, MII_REG(lp))
#define SMC_GET_MIR(lp) SMC_inw(ioaddr, MIR_REG(lp))
#define SMC_SET_MIR(lp, x) SMC_outw(x, ioaddr, MIR_REG(lp))
#define SMC_GET_MMU_CMD(lp) SMC_inw(ioaddr, MMU_CMD_REG(lp))
#define SMC_SET_MMU_CMD(lp, x) SMC_outw(x, ioaddr, MMU_CMD_REG(lp))
#define SMC_GET_FIFO(lp) SMC_inw(ioaddr, FIFO_REG(lp))
#define SMC_GET_PTR(lp) SMC_inw(ioaddr, PTR_REG(lp))
#define SMC_SET_PTR(lp, x) \
do { \
if (SMC_MUST_ALIGN_WRITE(lp)) \
SMC_outl((x)<<16, ioaddr, SMC_REG(lp, 4, 2)); \
else \
SMC_outw(x, ioaddr, PTR_REG(lp)); \
} while (0)
#define SMC_GET_EPH_STATUS(lp) SMC_inw(ioaddr, EPH_STATUS_REG(lp))
#define SMC_GET_RCR(lp) SMC_inw(ioaddr, RCR_REG(lp))
#define SMC_SET_RCR(lp, x) SMC_outw(x, ioaddr, RCR_REG(lp))
#define SMC_GET_REV(lp) SMC_inw(ioaddr, REV_REG(lp))
#define SMC_GET_RPC(lp) SMC_inw(ioaddr, RPC_REG(lp))
#define SMC_SET_RPC(lp, x) \
do { \
if (SMC_MUST_ALIGN_WRITE(lp)) \
SMC_outl((x)<<16, ioaddr, SMC_REG(lp, 8, 0)); \
else \
SMC_outw(x, ioaddr, RPC_REG(lp)); \
} while (0)
#define SMC_GET_TCR(lp) SMC_inw(ioaddr, TCR_REG(lp))
#define SMC_SET_TCR(lp, x) SMC_outw(x, ioaddr, TCR_REG(lp))
#ifndef SMC_GET_MAC_ADDR
#define SMC_GET_MAC_ADDR(lp, addr) \
do { \
unsigned int __v; \
__v = SMC_inw(ioaddr, ADDR0_REG(lp)); \
addr[0] = __v; addr[1] = __v >> 8; \
__v = SMC_inw(ioaddr, ADDR1_REG(lp)); \
addr[2] = __v; addr[3] = __v >> 8; \
__v = SMC_inw(ioaddr, ADDR2_REG(lp)); \
addr[4] = __v; addr[5] = __v >> 8; \
} while (0)
#endif
#define SMC_SET_MAC_ADDR(lp, addr) \
do { \
SMC_outw(addr[0]|(addr[1] << 8), ioaddr, ADDR0_REG(lp)); \
SMC_outw(addr[2]|(addr[3] << 8), ioaddr, ADDR1_REG(lp)); \
SMC_outw(addr[4]|(addr[5] << 8), ioaddr, ADDR2_REG(lp)); \
} while (0)
#define SMC_SET_MCAST(lp, x) \
do { \
const unsigned char *mt = (x); \
SMC_outw(mt[0] | (mt[1] << 8), ioaddr, MCAST_REG1(lp)); \
SMC_outw(mt[2] | (mt[3] << 8), ioaddr, MCAST_REG2(lp)); \
SMC_outw(mt[4] | (mt[5] << 8), ioaddr, MCAST_REG3(lp)); \
SMC_outw(mt[6] | (mt[7] << 8), ioaddr, MCAST_REG4(lp)); \
} while (0)
#define SMC_PUT_PKT_HDR(lp, status, length) \
do { \
if (SMC_32BIT(lp)) \
SMC_outl((status) | (length)<<16, ioaddr, \
DATA_REG(lp)); \
else { \
SMC_outw(status, ioaddr, DATA_REG(lp)); \
SMC_outw(length, ioaddr, DATA_REG(lp)); \
} \
} while (0)
#define SMC_GET_PKT_HDR(lp, status, length) \
do { \
if (SMC_32BIT(lp)) { \
unsigned int __val = SMC_inl(ioaddr, DATA_REG(lp)); \
(status) = __val & 0xffff; \
(length) = __val >> 16; \
} else { \
(status) = SMC_inw(ioaddr, DATA_REG(lp)); \
(length) = SMC_inw(ioaddr, DATA_REG(lp)); \
} \
} while (0)
#define SMC_PUSH_DATA(lp, p, l) \
do { \
if (SMC_32BIT(lp)) { \
void *__ptr = (p); \
int __len = (l); \
void __iomem *__ioaddr = ioaddr; \
if (__len >= 2 && (unsigned long)__ptr & 2) { \
__len -= 2; \
SMC_outsw(ioaddr, DATA_REG(lp), __ptr, 1); \
__ptr += 2; \
} \
if (SMC_CAN_USE_DATACS && lp->datacs) \
__ioaddr = lp->datacs; \
SMC_outsl(__ioaddr, DATA_REG(lp), __ptr, __len>>2); \
if (__len & 2) { \
__ptr += (__len & ~3); \
SMC_outsw(ioaddr, DATA_REG(lp), __ptr, 1); \
} \
} else if (SMC_16BIT(lp)) \
SMC_outsw(ioaddr, DATA_REG(lp), p, (l) >> 1); \
else if (SMC_8BIT(lp)) \
SMC_outsb(ioaddr, DATA_REG(lp), p, l); \
} while (0)
#define SMC_PULL_DATA(lp, p, l) \
do { \
if (SMC_32BIT(lp)) { \
void *__ptr = (p); \
int __len = (l); \
void __iomem *__ioaddr = ioaddr; \
if ((unsigned long)__ptr & 2) { \
/* \
* We want 32bit alignment here. \
* Since some buses perform a full \
* 32bit fetch even for 16bit data \
* we can't use SMC_inw() here. \
* Back both source (on-chip) and \
* destination pointers of 2 bytes. \
* This is possible since the call to \
* SMC_GET_PKT_HDR() already advanced \
* the source pointer of 4 bytes, and \
* the skb_reserve(skb, 2) advanced \
* the destination pointer of 2 bytes. \
*/ \
__ptr -= 2; \
__len += 2; \
SMC_SET_PTR(lp, \
2|PTR_READ|PTR_RCV|PTR_AUTOINC); \
} \
if (SMC_CAN_USE_DATACS && lp->datacs) \
__ioaddr = lp->datacs; \
__len += 2; \
SMC_insl(__ioaddr, DATA_REG(lp), __ptr, __len>>2); \
} else if (SMC_16BIT(lp)) \
SMC_insw(ioaddr, DATA_REG(lp), p, (l) >> 1); \
else if (SMC_8BIT(lp)) \
SMC_insb(ioaddr, DATA_REG(lp), p, l); \
} while (0)
#endif /* _SMC91X_H_ */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| russell king | russell king | 1711 | 48.79% | 5 | 11.90% |
| nicolas pitre | nicolas pitre | 405 | 11.55% | 2 | 4.76% |
| magnus damm | magnus damm | 333 | 9.50% | 4 | 9.52% |
| robert jarzmik | robert jarzmik | 308 | 8.78% | 1 | 2.38% |
| greg ungerer | greg ungerer | 157 | 4.48% | 1 | 2.38% |
| michael schmitz | michael schmitz | 142 | 4.05% | 1 | 2.38% |
| paul mundt | paul mundt | 132 | 3.76% | 1 | 2.38% |
| hirokazu takata* | hirokazu takata* | 79 | 2.25% | 2 | 4.76% |
| yoshinori sato | yoshinori sato | 68 | 1.94% | 1 | 2.38% |
| andrew morton | andrew morton | 51 | 1.45% | 4 | 9.52% |
| arnd bergmann | arnd bergmann | 26 | 0.74% | 1 | 2.38% |
| linus walleij | linus walleij | 22 | 0.63% | 1 | 2.38% |
| vernon sauder | vernon sauder | 17 | 0.48% | 1 | 2.38% |
| eric miao | eric miao | 12 | 0.34% | 4 | 9.52% |
| will deacon | will deacon | 11 | 0.31% | 2 | 4.76% |
| tony lindgren | tony lindgren | 10 | 0.29% | 1 | 2.38% |
| david howells | david howells | 7 | 0.20% | 2 | 4.76% |
| marc singer | marc singer | 6 | 0.17% | 1 | 2.38% |
| david brown | david brown | 4 | 0.11% | 1 | 2.38% |
| jeff kirsher | jeff kirsher | 1 | 0.03% | 1 | 2.38% |
| michael opdenacker | michael opdenacker | 1 | 0.03% | 1 | 2.38% |
| thomas gleixner | thomas gleixner | 1 | 0.03% | 1 | 2.38% |
| mariusz kozlowski | mariusz kozlowski | 1 | 0.03% | 1 | 2.38% |
| ben boeckel | ben boeckel | 1 | 0.03% | 1 | 2.38% |
| lucas de marchi | lucas de marchi | 1 | 0.03% | 1 | 2.38% |
| Total | 3507 | 100.00% | 42 | 100.00% |
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