NET: add ENC28J60 driver using SPI framework
V3: further refinements:
- use priv member instead of container method
- allow setting of MAC address by write_hwaddr method
- avoid shutting down link between commands
Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
diff --git a/drivers/net/enc28j60.h b/drivers/net/enc28j60.h
new file mode 100644
index 0000000..888c599
--- /dev/null
+++ b/drivers/net/enc28j60.h
@@ -0,0 +1,251 @@
+/*
+ * (X) extracted from enc28j60.c
+ * Reinhard Meyer, EMK Elektronik, reinhard.meyer@emk-elektronik.de
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _enc28j60_h
+#define _enc28j60_h
+
+/*
+ * SPI Commands
+ *
+ * Bits 7-5: Command
+ * Bits 4-0: Register
+ */
+#define CMD_RCR(x) (0x00+((x)&0x1f)) /* Read Control Register */
+#define CMD_RBM 0x3a /* Read Buffer Memory */
+#define CMD_WCR(x) (0x40+((x)&0x1f)) /* Write Control Register */
+#define CMD_WBM 0x7a /* Write Buffer Memory */
+#define CMD_BFS(x) (0x80+((x)&0x1f)) /* Bit Field Set */
+#define CMD_BFC(x) (0xa0+((x)&0x1f)) /* Bit Field Clear */
+#define CMD_SRC 0xff /* System Reset Command */
+
+/* NEW: encode (bank number+1) in upper byte */
+
+/* Common Control Registers accessible in all Banks */
+#define CTL_REG_EIE 0x01B
+#define CTL_REG_EIR 0x01C
+#define CTL_REG_ESTAT 0x01D
+#define CTL_REG_ECON2 0x01E
+#define CTL_REG_ECON1 0x01F
+
+/* Control Registers accessible in Bank 0 */
+#define CTL_REG_ERDPTL 0x100
+#define CTL_REG_ERDPTH 0x101
+#define CTL_REG_EWRPTL 0x102
+#define CTL_REG_EWRPTH 0x103
+#define CTL_REG_ETXSTL 0x104
+#define CTL_REG_ETXSTH 0x105
+#define CTL_REG_ETXNDL 0x106
+#define CTL_REG_ETXNDH 0x107
+#define CTL_REG_ERXSTL 0x108
+#define CTL_REG_ERXSTH 0x109
+#define CTL_REG_ERXNDL 0x10A
+#define CTL_REG_ERXNDH 0x10B
+#define CTL_REG_ERXRDPTL 0x10C
+#define CTL_REG_ERXRDPTH 0x10D
+#define CTL_REG_ERXWRPTL 0x10E
+#define CTL_REG_ERXWRPTH 0x10F
+#define CTL_REG_EDMASTL 0x110
+#define CTL_REG_EDMASTH 0x111
+#define CTL_REG_EDMANDL 0x112
+#define CTL_REG_EDMANDH 0x113
+#define CTL_REG_EDMADSTL 0x114
+#define CTL_REG_EDMADSTH 0x115
+#define CTL_REG_EDMACSL 0x116
+#define CTL_REG_EDMACSH 0x117
+
+/* Control Registers accessible in Bank 1 */
+#define CTL_REG_EHT0 0x200
+#define CTL_REG_EHT1 0x201
+#define CTL_REG_EHT2 0x202
+#define CTL_REG_EHT3 0x203
+#define CTL_REG_EHT4 0x204
+#define CTL_REG_EHT5 0x205
+#define CTL_REG_EHT6 0x206
+#define CTL_REG_EHT7 0x207
+#define CTL_REG_EPMM0 0x208
+#define CTL_REG_EPMM1 0x209
+#define CTL_REG_EPMM2 0x20A
+#define CTL_REG_EPMM3 0x20B
+#define CTL_REG_EPMM4 0x20C
+#define CTL_REG_EPMM5 0x20D
+#define CTL_REG_EPMM6 0x20E
+#define CTL_REG_EPMM7 0x20F
+#define CTL_REG_EPMCSL 0x210
+#define CTL_REG_EPMCSH 0x211
+#define CTL_REG_EPMOL 0x214
+#define CTL_REG_EPMOH 0x215
+#define CTL_REG_EWOLIE 0x216
+#define CTL_REG_EWOLIR 0x217
+#define CTL_REG_ERXFCON 0x218
+#define CTL_REG_EPKTCNT 0x219
+
+/* Control Registers accessible in Bank 2 */
+#define CTL_REG_MACON1 0x300
+#define CTL_REG_MACON2 0x301
+#define CTL_REG_MACON3 0x302
+#define CTL_REG_MACON4 0x303
+#define CTL_REG_MABBIPG 0x304
+#define CTL_REG_MAIPGL 0x306
+#define CTL_REG_MAIPGH 0x307
+#define CTL_REG_MACLCON1 0x308
+#define CTL_REG_MACLCON2 0x309
+#define CTL_REG_MAMXFLL 0x30A
+#define CTL_REG_MAMXFLH 0x30B
+#define CTL_REG_MAPHSUP 0x30D
+#define CTL_REG_MICON 0x311
+#define CTL_REG_MICMD 0x312
+#define CTL_REG_MIREGADR 0x314
+#define CTL_REG_MIWRL 0x316
+#define CTL_REG_MIWRH 0x317
+#define CTL_REG_MIRDL 0x318
+#define CTL_REG_MIRDH 0x319
+
+/* Control Registers accessible in Bank 3 */
+#define CTL_REG_MAADR1 0x400
+#define CTL_REG_MAADR0 0x401
+#define CTL_REG_MAADR3 0x402
+#define CTL_REG_MAADR2 0x403
+#define CTL_REG_MAADR5 0x404
+#define CTL_REG_MAADR4 0x405
+#define CTL_REG_EBSTSD 0x406
+#define CTL_REG_EBSTCON 0x407
+#define CTL_REG_EBSTCSL 0x408
+#define CTL_REG_EBSTCSH 0x409
+#define CTL_REG_MISTAT 0x40A
+#define CTL_REG_EREVID 0x412
+#define CTL_REG_ECOCON 0x415
+#define CTL_REG_EFLOCON 0x417
+#define CTL_REG_EPAUSL 0x418
+#define CTL_REG_EPAUSH 0x419
+
+/* PHY Register */
+#define PHY_REG_PHCON1 0x00
+#define PHY_REG_PHSTAT1 0x01
+#define PHY_REG_PHID1 0x02
+#define PHY_REG_PHID2 0x03
+#define PHY_REG_PHCON2 0x10
+#define PHY_REG_PHSTAT2 0x11
+#define PHY_REG_PHLCON 0x14
+
+/* Receive Filter Register (ERXFCON) bits */
+#define ENC_RFR_UCEN 0x80
+#define ENC_RFR_ANDOR 0x40
+#define ENC_RFR_CRCEN 0x20
+#define ENC_RFR_PMEN 0x10
+#define ENC_RFR_MPEN 0x08
+#define ENC_RFR_HTEN 0x04
+#define ENC_RFR_MCEN 0x02
+#define ENC_RFR_BCEN 0x01
+
+/* ECON1 Register Bits */
+#define ENC_ECON1_TXRST 0x80
+#define ENC_ECON1_RXRST 0x40
+#define ENC_ECON1_DMAST 0x20
+#define ENC_ECON1_CSUMEN 0x10
+#define ENC_ECON1_TXRTS 0x08
+#define ENC_ECON1_RXEN 0x04
+#define ENC_ECON1_BSEL1 0x02
+#define ENC_ECON1_BSEL0 0x01
+
+/* ECON2 Register Bits */
+#define ENC_ECON2_AUTOINC 0x80
+#define ENC_ECON2_PKTDEC 0x40
+#define ENC_ECON2_PWRSV 0x20
+#define ENC_ECON2_VRPS 0x08
+
+/* EIR Register Bits */
+#define ENC_EIR_PKTIF 0x40
+#define ENC_EIR_DMAIF 0x20
+#define ENC_EIR_LINKIF 0x10
+#define ENC_EIR_TXIF 0x08
+#define ENC_EIR_WOLIF 0x04
+#define ENC_EIR_TXERIF 0x02
+#define ENC_EIR_RXERIF 0x01
+
+/* ESTAT Register Bits */
+#define ENC_ESTAT_INT 0x80
+#define ENC_ESTAT_LATECOL 0x10
+#define ENC_ESTAT_RXBUSY 0x04
+#define ENC_ESTAT_TXABRT 0x02
+#define ENC_ESTAT_CLKRDY 0x01
+
+/* EIE Register Bits */
+#define ENC_EIE_INTIE 0x80
+#define ENC_EIE_PKTIE 0x40
+#define ENC_EIE_DMAIE 0x20
+#define ENC_EIE_LINKIE 0x10
+#define ENC_EIE_TXIE 0x08
+#define ENC_EIE_WOLIE 0x04
+#define ENC_EIE_TXERIE 0x02
+#define ENC_EIE_RXERIE 0x01
+
+/* MACON1 Register Bits */
+#define ENC_MACON1_LOOPBK 0x10
+#define ENC_MACON1_TXPAUS 0x08
+#define ENC_MACON1_RXPAUS 0x04
+#define ENC_MACON1_PASSALL 0x02
+#define ENC_MACON1_MARXEN 0x01
+
+/* MACON2 Register Bits */
+#define ENC_MACON2_MARST 0x80
+#define ENC_MACON2_RNDRST 0x40
+#define ENC_MACON2_MARXRST 0x08
+#define ENC_MACON2_RFUNRST 0x04
+#define ENC_MACON2_MATXRST 0x02
+#define ENC_MACON2_TFUNRST 0x01
+
+/* MACON3 Register Bits */
+#define ENC_MACON3_PADCFG2 0x80
+#define ENC_MACON3_PADCFG1 0x40
+#define ENC_MACON3_PADCFG0 0x20
+#define ENC_MACON3_TXCRCEN 0x10
+#define ENC_MACON3_PHDRLEN 0x08
+#define ENC_MACON3_HFRMEN 0x04
+#define ENC_MACON3_FRMLNEN 0x02
+#define ENC_MACON3_FULDPX 0x01
+
+/* MACON4 Register Bits */
+#define ENC_MACON4_DEFER 0x40
+
+/* MICMD Register Bits */
+#define ENC_MICMD_MIISCAN 0x02
+#define ENC_MICMD_MIIRD 0x01
+
+/* MISTAT Register Bits */
+#define ENC_MISTAT_NVALID 0x04
+#define ENC_MISTAT_SCAN 0x02
+#define ENC_MISTAT_BUSY 0x01
+
+/* PHID1 and PHID2 values */
+#define ENC_PHID1_VALUE 0x0083
+#define ENC_PHID2_VALUE 0x1400
+#define ENC_PHID2_MASK 0xFC00
+
+/* PHCON1 values */
+#define ENC_PHCON1_PDPXMD 0x0100
+
+/* PHSTAT1 values */
+#define ENC_PHSTAT1_LLSTAT 0x0004
+
+/* PHSTAT2 values */
+#define ENC_PHSTAT2_LSTAT 0x0400
+#define ENC_PHSTAT2_DPXSTAT 0x0200
+
+#endif