1 /*-----------------------------------------------------------------------------+
3 * This source code has been made available to you by IBM on an AS-IS
4 * basis. Anyone receiving this source is licensed under IBM
5 * copyrights to use it in any way he or she deems fit, including
6 * copying it, modifying it, compiling it, and redistributing it either
7 * with or without modifications. No license under IBM patents or
8 * patent applications is to be implied by the copyright license.
10 * Any user of this software should understand that IBM cannot provide
11 * technical support for this software and will not be responsible for
12 * any consequences resulting from the use of this software.
14 * Any person who transfers this source code or any derivative work
15 * must include the IBM copyright notice, this paragraph, and the
16 * preceding two paragraphs in the transferred software.
18 * COPYRIGHT I B M CORPORATION 1995
19 * LICENSED MATERIAL - PROGRAM PROPERTY OF I B M
20 *-----------------------------------------------------------------------------*/
21 /*-----------------------------------------------------------------------------+
23 * File Name: enetemac.c
25 * Function: Device driver for the ethernet EMAC3 macro on the 405GP.
31 * Date Description of Change BY
32 * --------- --------------------- ---
33 * 05-May-99 Created MKW
34 * 27-Jun-99 Clean up JWB
35 * 16-Jul-99 Added MAL error recovery and better IP packet handling MKW
36 * 29-Jul-99 Added Full duplex support MKW
37 * 06-Aug-99 Changed names for Mal CR reg MKW
38 * 23-Aug-99 Turned off SYE when running at 10Mbs MKW
39 * 24-Aug-99 Marked descriptor empty after call_xlc MKW
40 * 07-Sep-99 Set MAL RX buffer size reg to ENET_MAX_MTU_ALIGNED / 16 MCG
41 * to avoid chaining maximum sized packets. Push starting
42 * RX descriptor address up to the next cache line boundary.
43 * 16-Jan-00 Added support for booting with IP of 0x0 MKW
44 * 15-Mar-00 Updated enetInit() to enable broadcast addresses in the
45 * EMAC_RXM register. JWB
46 * 12-Mar-01 anne-sophie.harnois@nextream.fr
47 * - Variables are compatible with those already defined in
49 * - Receive buffer descriptor ring is used to send buffers
51 * - Info print about send/received/handled packet number if
52 * INFO_405_ENET is set
53 * 17-Apr-01 stefan.roese@esd-electronics.com
54 * - MAL reset in "eth_halt" included
55 * - Enet speed and duplex output now in one line
56 * 08-May-01 stefan.roese@esd-electronics.com
57 * - MAL error handling added (eth_init called again)
58 * 13-Nov-01 stefan.roese@esd-electronics.com
59 * - Set IST bit in EMAC_M1 reg upon 100MBit or full duplex
60 * 04-Jan-02 stefan.roese@esd-electronics.com
61 * - Wait for PHY auto negotiation to complete added
62 * 06-Feb-02 stefan.roese@esd-electronics.com
63 * - Bug fixed in waiting for auto negotiation to complete
64 * 26-Feb-02 stefan.roese@esd-electronics.com
65 * - rx and tx buffer descriptors now allocated (no fixed address
67 * 17-Jun-02 stefan.roese@esd-electronics.com
68 * - MAL error debug printf 'M' removed (rx de interrupt may
69 * occur upon many incoming packets with only 4 rx buffers).
70 *-----------------------------------------------------------------------------*
71 * 17-Nov-03 travis.sawyer@sandburst.com
72 * - ported from 405gp_enet.c to utilized upto 4 EMAC ports
73 * in the 440GX. This port should work with the 440GP
75 * 15-Aug-05 sr@denx.de
76 * - merged 405gp_enet.c and 440gx_enet.c to generic 4xx_enet.c
77 now handling all 4xx cpu's.
78 *-----------------------------------------------------------------------------*/
83 #include <asm/processor.h>
85 #include <asm/cache.h>
89 #include <ppc4xx_enet.h>
93 #include <asm/ppc4xx-intvec.h>
96 * Only compile for platform with AMCC EMAC ethernet controller and
97 * network support enabled.
98 * Remark: CONFIG_405 describes Xilinx PPC405 FPGA without EMAC controller!
100 #if defined(CONFIG_CMD_NET) && !defined(CONFIG_405) && !defined(CONFIG_IOP480)
102 #if !(defined(CONFIG_MII) || defined(CONFIG_CMD_MII))
103 #error "CONFIG_MII has to be defined!"
106 #if defined(CONFIG_NETCONSOLE) && !defined(CONFIG_NET_MULTI)
107 #error "CONFIG_NET_MULTI has to be defined for NetConsole"
110 #define EMAC_RESET_TIMEOUT 1000 /* 1000 ms reset timeout */
111 #define PHY_AUTONEGOTIATE_TIMEOUT 5000 /* 5000 ms autonegotiate timeout */
113 /* Ethernet Transmit and Receive Buffers */
115 * In the same way ENET_MAX_MTU and ENET_MAX_MTU_ALIGNED are set from
116 * PKTSIZE and PKTSIZE_ALIGN (include/net.h)
118 #define ENET_MAX_MTU PKTSIZE
119 #define ENET_MAX_MTU_ALIGNED PKTSIZE_ALIGN
121 /*-----------------------------------------------------------------------------+
122 * Defines for MAL/EMAC interrupt conditions as reported in the UIC (Universal
123 * Interrupt Controller).
124 *-----------------------------------------------------------------------------*/
125 #define MAL_UIC_ERR ( UIC_MAL_SERR | UIC_MAL_TXDE | UIC_MAL_RXDE)
126 #define MAL_UIC_DEF (UIC_MAL_RXEOB | MAL_UIC_ERR)
127 #define EMAC_UIC_DEF UIC_ENET
128 #define EMAC_UIC_DEF1 UIC_ENET1
129 #define SEL_UIC_DEF(p) (p ? UIC_ENET1 : UIC_ENET )
133 #define BI_PHYMODE_NONE 0
134 #define BI_PHYMODE_ZMII 1
135 #define BI_PHYMODE_RGMII 2
136 #define BI_PHYMODE_GMII 3
137 #define BI_PHYMODE_RTBI 4
138 #define BI_PHYMODE_TBI 5
139 #if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
140 defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
141 defined(CONFIG_405EX)
142 #define BI_PHYMODE_SMII 6
143 #define BI_PHYMODE_MII 7
144 #if defined(CONFIG_460EX) || defined(CONFIG_460GT)
145 #define BI_PHYMODE_RMII 8
149 #if defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
150 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
151 defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
152 defined(CONFIG_405EX)
153 #define SDR0_MFR_ETH_CLK_SEL_V(n) ((0x01<<27) / (n+1))
156 #if defined(CONFIG_460EX) || defined(CONFIG_460GT)
157 #define SDR0_ETH_CFG_CLK_SEL_V(n) (0x01 << (8 + n))
160 #if defined(CONFIG_460EX) || defined(CONFIG_460GT)
161 #define MAL_RX_CHAN_MUL 8 /* 460EX/GT uses MAL channel 8 for EMAC1 */
163 #define MAL_RX_CHAN_MUL 1
166 /*-----------------------------------------------------------------------------+
167 * Global variables. TX and RX descriptors and buffers.
168 *-----------------------------------------------------------------------------*/
170 static uint32_t mal_ier;
172 #if !defined(CONFIG_NET_MULTI)
173 struct eth_device *emac0_dev = NULL;
177 * Get count of EMAC devices (doesn't have to be the max. possible number
178 * supported by the cpu)
180 * CONFIG_BOARD_EMAC_COUNT added so now a "dynamic" way to configure the
181 * EMAC count is possible. As it is needed for the Kilauea/Haleakala
182 * 405EX/405EXr eval board, using the same binary.
184 #if defined(CONFIG_BOARD_EMAC_COUNT)
185 #define LAST_EMAC_NUM board_emac_count()
186 #else /* CONFIG_BOARD_EMAC_COUNT */
187 #if defined(CONFIG_HAS_ETH3)
188 #define LAST_EMAC_NUM 4
189 #elif defined(CONFIG_HAS_ETH2)
190 #define LAST_EMAC_NUM 3
191 #elif defined(CONFIG_HAS_ETH1)
192 #define LAST_EMAC_NUM 2
194 #define LAST_EMAC_NUM 1
196 #endif /* CONFIG_BOARD_EMAC_COUNT */
198 /* normal boards start with EMAC0 */
199 #if !defined(CONFIG_EMAC_NR_START)
200 #define CONFIG_EMAC_NR_START 0
203 #if defined(CONFIG_405EX) || defined(CONFIG_440EPX)
204 #define ETH_IRQ_NUM(dev) (VECNUM_ETH0 + ((dev)))
206 #define ETH_IRQ_NUM(dev) (VECNUM_ETH0 + ((dev) * 2))
209 #define MAL_RX_DESC_SIZE 2048
210 #define MAL_TX_DESC_SIZE 2048
211 #define MAL_ALLOC_SIZE (MAL_TX_DESC_SIZE + MAL_RX_DESC_SIZE)
213 /*-----------------------------------------------------------------------------+
214 * Prototypes and externals.
215 *-----------------------------------------------------------------------------*/
216 static void enet_rcv (struct eth_device *dev, unsigned long malisr);
218 int enetInt (struct eth_device *dev);
219 static void mal_err (struct eth_device *dev, unsigned long isr,
220 unsigned long uic, unsigned long maldef,
221 unsigned long mal_errr);
222 static void emac_err (struct eth_device *dev, unsigned long isr);
224 extern int phy_setup_aneg (char *devname, unsigned char addr);
225 extern int emac4xx_miiphy_read (char *devname, unsigned char addr,
226 unsigned char reg, unsigned short *value);
227 extern int emac4xx_miiphy_write (char *devname, unsigned char addr,
228 unsigned char reg, unsigned short value);
230 int board_emac_count(void);
232 static void emac_loopback_enable(EMAC_4XX_HW_PST hw_p)
234 #if defined(CONFIG_440SPE) || \
235 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
236 defined(CONFIG_405EX)
240 val |= SDR0_MFR_ETH_CLK_SEL_V(hw_p->devnum);
242 #elif defined(CONFIG_460EX) || defined(CONFIG_460GT)
245 mfsdr(SDR0_ETH_CFG, val);
246 val |= SDR0_ETH_CFG_CLK_SEL_V(hw_p->devnum);
247 mtsdr(SDR0_ETH_CFG, val);
251 static void emac_loopback_disable(EMAC_4XX_HW_PST hw_p)
253 #if defined(CONFIG_440SPE) || \
254 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
255 defined(CONFIG_405EX)
259 val &= ~SDR0_MFR_ETH_CLK_SEL_V(hw_p->devnum);
261 #elif defined(CONFIG_460EX) || defined(CONFIG_460GT)
264 mfsdr(SDR0_ETH_CFG, val);
265 val &= ~SDR0_ETH_CFG_CLK_SEL_V(hw_p->devnum);
266 mtsdr(SDR0_ETH_CFG, val);
270 /*-----------------------------------------------------------------------------+
272 | Disable MAL channel, and EMACn
273 +-----------------------------------------------------------------------------*/
274 static void ppc_4xx_eth_halt (struct eth_device *dev)
276 EMAC_4XX_HW_PST hw_p = dev->priv;
279 out_be32((void *)EMAC_IER + hw_p->hw_addr, 0x00000000); /* disable emac interrupts */
281 /* 1st reset MAL channel */
282 /* Note: writing a 0 to a channel has no effect */
283 #if defined(CONFIG_405EP) || defined(CONFIG_440EP) || defined(CONFIG_440GR)
284 mtdcr (maltxcarr, (MAL_CR_MMSR >> (hw_p->devnum * 2)));
286 mtdcr (maltxcarr, (MAL_CR_MMSR >> hw_p->devnum));
288 mtdcr (malrxcarr, (MAL_CR_MMSR >> hw_p->devnum));
291 while (mfdcr (malrxcasr) & (MAL_CR_MMSR >> hw_p->devnum)) {
292 udelay (1000); /* Delay 1 MS so as not to hammer the register */
298 /* provide clocks for EMAC internal loopback */
299 emac_loopback_enable(hw_p);
302 out_be32((void *)EMAC_M0 + hw_p->hw_addr, EMAC_M0_SRST);
304 /* remove clocks for EMAC internal loopback */
305 emac_loopback_disable(hw_p);
307 #ifndef CONFIG_NETCONSOLE
308 hw_p->print_speed = 1; /* print speed message again next time */
311 #if defined(CONFIG_460EX) || defined(CONFIG_460GT)
312 /* don't bypass the TAHOE0/TAHOE1 cores for Linux */
313 mfsdr(SDR0_ETH_CFG, val);
314 val &= ~(SDR0_ETH_CFG_TAHOE0_BYPASS | SDR0_ETH_CFG_TAHOE1_BYPASS);
315 mtsdr(SDR0_ETH_CFG, val);
321 #if defined (CONFIG_440GX)
322 int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis)
325 unsigned long zmiifer;
326 unsigned long rmiifer;
328 mfsdr(sdr_pfc1, pfc1);
329 pfc1 = SDR0_PFC1_EPS_DECODE(pfc1);
336 zmiifer |= ZMII_FER_RMII << ZMII_FER_V(0);
337 zmiifer |= ZMII_FER_RMII << ZMII_FER_V(1);
338 zmiifer |= ZMII_FER_RMII << ZMII_FER_V(2);
339 zmiifer |= ZMII_FER_RMII << ZMII_FER_V(3);
340 bis->bi_phymode[0] = BI_PHYMODE_ZMII;
341 bis->bi_phymode[1] = BI_PHYMODE_ZMII;
342 bis->bi_phymode[2] = BI_PHYMODE_ZMII;
343 bis->bi_phymode[3] = BI_PHYMODE_ZMII;
346 zmiifer |= ZMII_FER_SMII << ZMII_FER_V(0);
347 zmiifer |= ZMII_FER_SMII << ZMII_FER_V(1);
348 zmiifer |= ZMII_FER_SMII << ZMII_FER_V(2);
349 zmiifer |= ZMII_FER_SMII << ZMII_FER_V(3);
350 bis->bi_phymode[0] = BI_PHYMODE_ZMII;
351 bis->bi_phymode[1] = BI_PHYMODE_ZMII;
352 bis->bi_phymode[2] = BI_PHYMODE_ZMII;
353 bis->bi_phymode[3] = BI_PHYMODE_ZMII;
356 zmiifer |= ZMII_FER_RMII << ZMII_FER_V(0);
357 rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(2);
358 bis->bi_phymode[0] = BI_PHYMODE_ZMII;
359 bis->bi_phymode[1] = BI_PHYMODE_NONE;
360 bis->bi_phymode[2] = BI_PHYMODE_RGMII;
361 bis->bi_phymode[3] = BI_PHYMODE_NONE;
364 zmiifer |= ZMII_FER_SMII << ZMII_FER_V(0);
365 zmiifer |= ZMII_FER_SMII << ZMII_FER_V(1);
366 rmiifer |= RGMII_FER_RGMII << RGMII_FER_V (2);
367 rmiifer |= RGMII_FER_RGMII << RGMII_FER_V (3);
368 bis->bi_phymode[0] = BI_PHYMODE_ZMII;
369 bis->bi_phymode[1] = BI_PHYMODE_ZMII;
370 bis->bi_phymode[2] = BI_PHYMODE_RGMII;
371 bis->bi_phymode[3] = BI_PHYMODE_RGMII;
374 zmiifer |= ZMII_FER_SMII << ZMII_FER_V (0);
375 zmiifer |= ZMII_FER_SMII << ZMII_FER_V (1);
376 zmiifer |= ZMII_FER_SMII << ZMII_FER_V (2);
377 rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(3);
378 bis->bi_phymode[0] = BI_PHYMODE_ZMII;
379 bis->bi_phymode[1] = BI_PHYMODE_ZMII;
380 bis->bi_phymode[2] = BI_PHYMODE_ZMII;
381 bis->bi_phymode[3] = BI_PHYMODE_RGMII;
384 zmiifer |= ZMII_FER_SMII << ZMII_FER_V (0);
385 zmiifer |= ZMII_FER_SMII << ZMII_FER_V (1);
386 rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(2);
387 bis->bi_phymode[0] = BI_PHYMODE_ZMII;
388 bis->bi_phymode[1] = BI_PHYMODE_ZMII;
389 bis->bi_phymode[2] = BI_PHYMODE_RGMII;
393 zmiifer = ZMII_FER_MII << ZMII_FER_V(devnum);
395 bis->bi_phymode[0] = BI_PHYMODE_ZMII;
396 bis->bi_phymode[1] = BI_PHYMODE_ZMII;
397 bis->bi_phymode[2] = BI_PHYMODE_ZMII;
398 bis->bi_phymode[3] = BI_PHYMODE_ZMII;
402 /* Ensure we setup mdio for this devnum and ONLY this devnum */
403 zmiifer |= (ZMII_FER_MDI) << ZMII_FER_V(devnum);
405 out_be32((void *)ZMII_FER, zmiifer);
406 out_be32((void *)RGMII_FER, rmiifer);
410 #endif /* CONFIG_440_GX */
412 #if defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
413 int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis)
415 unsigned long zmiifer=0x0;
418 mfsdr(sdr_pfc1, pfc1);
419 pfc1 &= SDR0_PFC1_SELECT_MASK;
422 case SDR0_PFC1_SELECT_CONFIG_2:
424 out_be32((void *)ZMII_FER, 0x00);
425 out_be32((void *)RGMII_FER, 0x00000037);
426 bis->bi_phymode[0] = BI_PHYMODE_GMII;
427 bis->bi_phymode[1] = BI_PHYMODE_NONE;
429 case SDR0_PFC1_SELECT_CONFIG_4:
430 /* 2 x RGMII ports */
431 out_be32((void *)ZMII_FER, 0x00);
432 out_be32((void *)RGMII_FER, 0x00000055);
433 bis->bi_phymode[0] = BI_PHYMODE_RGMII;
434 bis->bi_phymode[1] = BI_PHYMODE_RGMII;
436 case SDR0_PFC1_SELECT_CONFIG_6:
438 out_be32((void *)ZMII_FER,
439 ((ZMII_FER_SMII) << ZMII_FER_V(0)) |
440 ((ZMII_FER_SMII) << ZMII_FER_V(1)));
441 out_be32((void *)RGMII_FER, 0x00000000);
442 bis->bi_phymode[0] = BI_PHYMODE_SMII;
443 bis->bi_phymode[1] = BI_PHYMODE_SMII;
445 case SDR0_PFC1_SELECT_CONFIG_1_2:
446 /* only 1 x MII supported */
447 out_be32((void *)ZMII_FER, (ZMII_FER_MII) << ZMII_FER_V(0));
448 out_be32((void *)RGMII_FER, 0x00000000);
449 bis->bi_phymode[0] = BI_PHYMODE_MII;
450 bis->bi_phymode[1] = BI_PHYMODE_NONE;
456 /* Ensure we setup mdio for this devnum and ONLY this devnum */
457 zmiifer = in_be32((void *)ZMII_FER);
458 zmiifer |= (ZMII_FER_MDI) << ZMII_FER_V(devnum);
459 out_be32((void *)ZMII_FER, zmiifer);
463 #endif /* CONFIG_440EPX */
465 #if defined(CONFIG_405EX)
466 int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis)
471 * Right now only 2*RGMII is supported. Please extend when needed.
476 /* 2 x RGMII ports */
477 out_be32((void *)RGMII_FER, 0x00000055);
478 bis->bi_phymode[0] = BI_PHYMODE_RGMII;
479 bis->bi_phymode[1] = BI_PHYMODE_RGMII;
488 /* Ensure we setup mdio for this devnum and ONLY this devnum */
489 gmiifer = in_be32((void *)RGMII_FER);
490 gmiifer |= (1 << (19-devnum));
491 out_be32((void *)RGMII_FER, gmiifer);
495 #endif /* CONFIG_405EX */
497 #if defined(CONFIG_460EX) || defined(CONFIG_460GT)
498 int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis)
501 u32 zmiifer; /* ZMII0_FER reg. */
502 u32 rmiifer; /* RGMII0_FER reg. Bridge 0 */
503 u32 rmiifer1; /* RGMII0_FER reg. Bridge 1 */
510 #if defined(CONFIG_460EX)
517 * NOTE: 460GT has 2 RGMII bridge cores:
518 * emac0 ------ RGMII0_BASE
522 * emac2 ------ RGMII1_BASE
526 * 460EX has 1 RGMII bridge core:
527 * and RGMII1_BASE is disabled
528 * emac0 ------ RGMII0_BASE
534 * Right now only 2*RGMII is supported. Please extend when needed.
540 /* GMC0 EMAC4_0, ZMII Bridge */
541 zmiifer |= ZMII_FER_MII << ZMII_FER_V(0);
542 bis->bi_phymode[0] = BI_PHYMODE_MII;
543 bis->bi_phymode[1] = BI_PHYMODE_NONE;
544 bis->bi_phymode[2] = BI_PHYMODE_NONE;
545 bis->bi_phymode[3] = BI_PHYMODE_NONE;
549 /* GMC0 EMAC4_0, GMC1 EMAC4_2, ZMII Bridge */
550 zmiifer |= ZMII_FER_MII << ZMII_FER_V(0);
551 zmiifer |= ZMII_FER_MII << ZMII_FER_V(2);
552 bis->bi_phymode[0] = BI_PHYMODE_MII;
553 bis->bi_phymode[1] = BI_PHYMODE_NONE;
554 bis->bi_phymode[2] = BI_PHYMODE_MII;
555 bis->bi_phymode[3] = BI_PHYMODE_NONE;
559 /* GMC0 EMAC4_0, GMC0 EMAC4_1, ZMII Bridge */
560 zmiifer |= ZMII_FER_RMII << ZMII_FER_V(0);
561 zmiifer |= ZMII_FER_RMII << ZMII_FER_V(1);
562 bis->bi_phymode[0] = BI_PHYMODE_RMII;
563 bis->bi_phymode[1] = BI_PHYMODE_RMII;
564 bis->bi_phymode[2] = BI_PHYMODE_NONE;
565 bis->bi_phymode[3] = BI_PHYMODE_NONE;
569 /* GMC0 EMAC4_0, GMC0 EMAC4_1, GMC1 EMAC4_2, GMC1, EMAC4_3 */
571 zmiifer |= ZMII_FER_RMII << ZMII_FER_V(0);
572 zmiifer |= ZMII_FER_RMII << ZMII_FER_V(1);
573 zmiifer |= ZMII_FER_RMII << ZMII_FER_V(2);
574 zmiifer |= ZMII_FER_RMII << ZMII_FER_V(3);
575 bis->bi_phymode[0] = BI_PHYMODE_RMII;
576 bis->bi_phymode[1] = BI_PHYMODE_RMII;
577 bis->bi_phymode[2] = BI_PHYMODE_RMII;
578 bis->bi_phymode[3] = BI_PHYMODE_RMII;
582 /* GMC0 EMAC4_0, GMC0 EMAC4_1, ZMII Bridge */
583 zmiifer |= ZMII_FER_SMII << ZMII_FER_V(0);
584 zmiifer |= ZMII_FER_SMII << ZMII_FER_V(1);
585 bis->bi_phymode[0] = BI_PHYMODE_SMII;
586 bis->bi_phymode[1] = BI_PHYMODE_SMII;
587 bis->bi_phymode[2] = BI_PHYMODE_NONE;
588 bis->bi_phymode[3] = BI_PHYMODE_NONE;
592 /* GMC0 EMAC4_0, GMC0 EMAC4_1, GMC0 EMAC4_3, GMC0 EMAC4_3 */
594 zmiifer |= ZMII_FER_SMII << ZMII_FER_V(0);
595 zmiifer |= ZMII_FER_SMII << ZMII_FER_V(1);
596 zmiifer |= ZMII_FER_SMII << ZMII_FER_V(2);
597 zmiifer |= ZMII_FER_SMII << ZMII_FER_V(3);
598 bis->bi_phymode[0] = BI_PHYMODE_SMII;
599 bis->bi_phymode[1] = BI_PHYMODE_SMII;
600 bis->bi_phymode[2] = BI_PHYMODE_SMII;
601 bis->bi_phymode[3] = BI_PHYMODE_SMII;
604 /* This is the default mode that we want for board bringup - Maple */
606 /* GMC0 EMAC4_0, RGMII Bridge 0 */
607 rmiifer |= RGMII_FER_MDIO(0);
610 rmiifer |= RGMII_FER_GMII << RGMII_FER_V(2); /* CH0CFG - EMAC0 */
611 bis->bi_phymode[0] = BI_PHYMODE_GMII;
612 bis->bi_phymode[1] = BI_PHYMODE_NONE;
613 bis->bi_phymode[2] = BI_PHYMODE_NONE;
614 bis->bi_phymode[3] = BI_PHYMODE_NONE;
616 rmiifer |= RGMII_FER_GMII << RGMII_FER_V(3); /* CH1CFG - EMAC1 */
617 bis->bi_phymode[0] = BI_PHYMODE_NONE;
618 bis->bi_phymode[1] = BI_PHYMODE_GMII;
619 bis->bi_phymode[2] = BI_PHYMODE_NONE;
620 bis->bi_phymode[3] = BI_PHYMODE_NONE;
625 /* GMC0 EMAC4_0, RGMII Bridge 0 */
626 /* GMC1 EMAC4_2, RGMII Bridge 1 */
627 rmiifer |= RGMII_FER_GMII << RGMII_FER_V(2); /* CH0CFG - EMAC0 */
628 rmiifer1 |= RGMII_FER_GMII << RGMII_FER_V(2); /* CH0CFG - EMAC2 */
629 rmiifer |= RGMII_FER_MDIO(0); /* enable MDIO - EMAC0 */
630 rmiifer1 |= RGMII_FER_MDIO(0); /* enable MDIO - EMAC2 */
632 bis->bi_phymode[0] = BI_PHYMODE_GMII;
633 bis->bi_phymode[1] = BI_PHYMODE_NONE;
634 bis->bi_phymode[2] = BI_PHYMODE_GMII;
635 bis->bi_phymode[3] = BI_PHYMODE_NONE;
638 /* 2 RGMII - 460EX */
639 /* GMC0 EMAC4_0, GMC0 EMAC4_1, RGMII Bridge 0 */
640 rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(2);
641 rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(3);
642 rmiifer |= RGMII_FER_MDIO(0); /* enable MDIO - EMAC0 */
644 bis->bi_phymode[0] = BI_PHYMODE_RGMII;
645 bis->bi_phymode[1] = BI_PHYMODE_RGMII;
646 bis->bi_phymode[2] = BI_PHYMODE_NONE;
647 bis->bi_phymode[3] = BI_PHYMODE_NONE;
650 /* 4 RGMII - 460GT */
651 /* GMC0 EMAC4_0, GMC0 EMAC4_1, RGMII Bridge 0 */
652 /* GMC1 EMAC4_2, GMC1 EMAC4_3, RGMII Bridge 1 */
653 rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(2);
654 rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(3);
655 rmiifer1 |= RGMII_FER_RGMII << RGMII_FER_V(2);
656 rmiifer1 |= RGMII_FER_RGMII << RGMII_FER_V(3);
657 bis->bi_phymode[0] = BI_PHYMODE_RGMII;
658 bis->bi_phymode[1] = BI_PHYMODE_RGMII;
659 bis->bi_phymode[2] = BI_PHYMODE_RGMII;
660 bis->bi_phymode[3] = BI_PHYMODE_RGMII;
666 /* Set EMAC for MDIO */
667 mfsdr(SDR0_ETH_CFG, eth_cfg);
668 eth_cfg |= SDR0_ETH_CFG_MDIO_SEL_EMAC0;
669 mtsdr(SDR0_ETH_CFG, eth_cfg);
671 out_be32((void *)RGMII_FER, rmiifer);
672 #if defined(CONFIG_460GT)
673 out_be32((void *)RGMII_FER + RGMII1_BASE_OFFSET, rmiifer1);
676 /* bypass the TAHOE0/TAHOE1 cores for U-Boot */
677 mfsdr(SDR0_ETH_CFG, eth_cfg);
678 eth_cfg |= (SDR0_ETH_CFG_TAHOE0_BYPASS | SDR0_ETH_CFG_TAHOE1_BYPASS);
679 mtsdr(SDR0_ETH_CFG, eth_cfg);
683 #endif /* CONFIG_460EX || CONFIG_460GT */
685 static inline void *malloc_aligned(u32 size, u32 align)
687 return (void *)(((u32)malloc(size + align) + align - 1) &
691 static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
694 unsigned long reg = 0;
697 unsigned long duplex;
698 unsigned long failsafe;
700 unsigned short devnum;
701 unsigned short reg_short;
702 #if defined(CONFIG_440GX) || \
703 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
704 defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
705 defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
706 defined(CONFIG_405EX)
708 #if defined(CONFIG_440GX) || defined(CONFIG_440SPE) || \
709 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
710 defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
711 defined(CONFIG_405EX)
717 #ifdef CONFIG_4xx_DCACHE
718 static u32 last_used_ea = 0;
721 EMAC_4XX_HW_PST hw_p = dev->priv;
723 /* before doing anything, figure out if we have a MAC address */
725 if (memcmp (dev->enetaddr, "\0\0\0\0\0\0", 6) == 0) {
726 printf("ERROR: ethaddr not set!\n");
730 #if defined(CONFIG_440GX) || \
731 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
732 defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
733 defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
734 defined(CONFIG_405EX)
735 /* Need to get the OPB frequency so we can access the PHY */
736 get_sys_info (&sysinfo);
740 mtmsr (msr & ~(MSR_EE)); /* disable interrupts */
742 devnum = hw_p->devnum;
747 * hw_p->stats.pkts_handled <= hw_p->stats.pkts_rx <= hw_p->stats.pkts_handled+PKTBUFSRX
748 * In the most cases hw_p->stats.pkts_handled = hw_p->stats.pkts_rx, but it
749 * is possible that new packets (without relationship with
750 * current transfer) have got the time to arrived before
751 * netloop calls eth_halt
753 printf ("About preceeding transfer (eth%d):\n"
754 "- Sent packet number %d\n"
755 "- Received packet number %d\n"
756 "- Handled packet number %d\n",
759 hw_p->stats.pkts_rx, hw_p->stats.pkts_handled);
761 hw_p->stats.pkts_tx = 0;
762 hw_p->stats.pkts_rx = 0;
763 hw_p->stats.pkts_handled = 0;
764 hw_p->print_speed = 1; /* print speed message again next time */
767 hw_p->tx_err_index = 0; /* Transmit Error Index for tx_err_log */
768 hw_p->rx_err_index = 0; /* Receive Error Index for rx_err_log */
770 hw_p->rx_slot = 0; /* MAL Receive Slot */
771 hw_p->rx_i_index = 0; /* Receive Interrupt Queue Index */
772 hw_p->rx_u_index = 0; /* Receive User Queue Index */
774 hw_p->tx_slot = 0; /* MAL Transmit Slot */
775 hw_p->tx_i_index = 0; /* Transmit Interrupt Queue Index */
776 hw_p->tx_u_index = 0; /* Transmit User Queue Index */
778 #if defined(CONFIG_440) && !defined(CONFIG_440SP) && !defined(CONFIG_440SPE)
780 /* NOTE: 440GX spec states that mode is mutually exclusive */
781 /* NOTE: Therefore, disable all other EMACS, since we handle */
782 /* NOTE: only one emac at a time */
784 out_be32((void *)ZMII_FER, 0);
787 #if defined(CONFIG_440GP) || defined(CONFIG_440EP) || defined(CONFIG_440GR)
788 out_be32((void *)ZMII_FER, (ZMII_FER_RMII | ZMII_FER_MDI) << ZMII_FER_V (devnum));
789 #elif defined(CONFIG_440GX) || \
790 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
791 defined(CONFIG_460EX) || defined(CONFIG_460GT)
792 ethgroup = ppc_4xx_eth_setup_bridge(devnum, bis);
795 out_be32((void *)ZMII_SSR, ZMII_SSR_SP << ZMII_SSR_V(devnum));
796 #endif /* defined(CONFIG_440) && !defined(CONFIG_440SP) */
797 #if defined(CONFIG_405EX)
798 ethgroup = ppc_4xx_eth_setup_bridge(devnum, bis);
803 /* provide clocks for EMAC internal loopback */
804 emac_loopback_enable(hw_p);
807 out_be32((void *)EMAC_M0 + hw_p->hw_addr, EMAC_M0_SRST);
809 /* remove clocks for EMAC internal loopback */
810 emac_loopback_disable(hw_p);
813 while ((in_be32((void *)EMAC_M0 + hw_p->hw_addr) & (EMAC_M0_SRST)) && failsafe) {
818 printf("\nProblem resetting EMAC!\n");
820 #if defined(CONFIG_440GX) || \
821 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
822 defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
823 defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
824 defined(CONFIG_405EX)
825 /* Whack the M1 register */
827 mode_reg &= ~0x00000038;
828 if (sysinfo.freqOPB <= 50000000);
829 else if (sysinfo.freqOPB <= 66666667)
830 mode_reg |= EMAC_M1_OBCI_66;
831 else if (sysinfo.freqOPB <= 83333333)
832 mode_reg |= EMAC_M1_OBCI_83;
833 else if (sysinfo.freqOPB <= 100000000)
834 mode_reg |= EMAC_M1_OBCI_100;
836 mode_reg |= EMAC_M1_OBCI_GT100;
838 out_be32((void *)EMAC_M1 + hw_p->hw_addr, mode_reg);
839 #endif /* defined(CONFIG_440GX) || defined(CONFIG_440SP) */
841 /* wait for PHY to complete auto negotiation */
843 #ifndef CONFIG_CS8952_PHY
846 reg = CONFIG_PHY_ADDR;
848 #if defined (CONFIG_PHY1_ADDR)
850 reg = CONFIG_PHY1_ADDR;
853 #if defined (CONFIG_PHY2_ADDR)
855 reg = CONFIG_PHY2_ADDR;
858 #if defined (CONFIG_PHY3_ADDR)
860 reg = CONFIG_PHY3_ADDR;
864 reg = CONFIG_PHY_ADDR;
868 bis->bi_phynum[devnum] = reg;
870 #if defined(CONFIG_PHY_RESET)
872 * Reset the phy, only if its the first time through
873 * otherwise, just check the speeds & feeds
875 if (hw_p->first_init == 0) {
876 #if defined(CONFIG_M88E1111_PHY)
877 miiphy_write (dev->name, reg, 0x14, 0x0ce3);
878 miiphy_write (dev->name, reg, 0x18, 0x4101);
879 miiphy_write (dev->name, reg, 0x09, 0x0e00);
880 miiphy_write (dev->name, reg, 0x04, 0x01e1);
882 miiphy_reset (dev->name, reg);
884 #if defined(CONFIG_440GX) || \
885 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
886 defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
887 defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
888 defined(CONFIG_405EX)
890 #if defined(CONFIG_CIS8201_PHY)
892 * Cicada 8201 PHY needs to have an extended register whacked
895 if (((devnum == 2) || (devnum == 3)) && (4 == ethgroup)) {
896 #if defined(CONFIG_CIS8201_SHORT_ETCH)
897 miiphy_write (dev->name, reg, 23, 0x1300);
899 miiphy_write (dev->name, reg, 23, 0x1000);
902 * Vitesse VSC8201/Cicada CIS8201 errata:
903 * Interoperability problem with Intel 82547EI phys
904 * This work around (provided by Vitesse) changes
905 * the default timer convergence from 8ms to 12ms
907 miiphy_write (dev->name, reg, 0x1f, 0x2a30);
908 miiphy_write (dev->name, reg, 0x08, 0x0200);
909 miiphy_write (dev->name, reg, 0x1f, 0x52b5);
910 miiphy_write (dev->name, reg, 0x02, 0x0004);
911 miiphy_write (dev->name, reg, 0x01, 0x0671);
912 miiphy_write (dev->name, reg, 0x00, 0x8fae);
913 miiphy_write (dev->name, reg, 0x1f, 0x2a30);
914 miiphy_write (dev->name, reg, 0x08, 0x0000);
915 miiphy_write (dev->name, reg, 0x1f, 0x0000);
916 /* end Vitesse/Cicada errata */
920 #if defined(CONFIG_ET1011C_PHY)
922 * Agere ET1011c PHY needs to have an extended register whacked
925 if (((devnum == 2) || (devnum ==3)) && (4 == ethgroup)) {
926 miiphy_read (dev->name, reg, 0x16, ®_short);
928 reg_short |= 0x6; /* RGMII DLL Delay*/
929 miiphy_write (dev->name, reg, 0x16, reg_short);
931 miiphy_read (dev->name, reg, 0x17, ®_short);
932 reg_short &= ~(0x40);
933 miiphy_write (dev->name, reg, 0x17, reg_short);
935 miiphy_write(dev->name, reg, 0x1c, 0x74f0);
940 /* Start/Restart autonegotiation */
941 phy_setup_aneg (dev->name, reg);
944 #endif /* defined(CONFIG_PHY_RESET) */
946 miiphy_read (dev->name, reg, PHY_BMSR, ®_short);
949 * Wait if PHY is capable of autonegotiation and autonegotiation is not complete
951 if ((reg_short & PHY_BMSR_AUTN_ABLE)
952 && !(reg_short & PHY_BMSR_AUTN_COMP)) {
953 puts ("Waiting for PHY auto negotiation to complete");
955 while (!(reg_short & PHY_BMSR_AUTN_COMP)) {
959 if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
960 puts (" TIMEOUT !\n");
964 if ((i++ % 1000) == 0) {
967 udelay (1000); /* 1 ms */
968 miiphy_read (dev->name, reg, PHY_BMSR, ®_short);
972 udelay (500000); /* another 500 ms (results in faster booting) */
974 #endif /* #ifndef CONFIG_CS8952_PHY */
976 speed = miiphy_speed (dev->name, reg);
977 duplex = miiphy_duplex (dev->name, reg);
979 if (hw_p->print_speed) {
980 hw_p->print_speed = 0;
981 printf ("ENET Speed is %d Mbps - %s duplex connection (EMAC%d)\n",
982 (int) speed, (duplex == HALF) ? "HALF" : "FULL",
986 #if defined(CONFIG_440) && \
987 !defined(CONFIG_440SP) && !defined(CONFIG_440SPE) && \
988 !defined(CONFIG_440EPX) && !defined(CONFIG_440GRX) && \
989 !defined(CONFIG_460EX) && !defined(CONFIG_460GT)
990 #if defined(CONFIG_440EP) || defined(CONFIG_440GR)
993 reg = (reg & ~SDR0_MFR_ZMII_MODE_MASK) | SDR0_MFR_ZMII_MODE_RMII_100M;
995 reg = (reg & ~SDR0_MFR_ZMII_MODE_MASK) | SDR0_MFR_ZMII_MODE_RMII_10M;
1000 /* Set ZMII/RGMII speed according to the phy link speed */
1001 reg = in_be32((void *)ZMII_SSR);
1002 if ( (speed == 100) || (speed == 1000) )
1003 out_be32((void *)ZMII_SSR, reg | (ZMII_SSR_SP << ZMII_SSR_V (devnum)));
1005 out_be32((void *)ZMII_SSR, reg & (~(ZMII_SSR_SP << ZMII_SSR_V (devnum))));
1007 if ((devnum == 2) || (devnum == 3)) {
1009 reg = (RGMII_SSR_SP_1000MBPS << RGMII_SSR_V (devnum));
1010 else if (speed == 100)
1011 reg = (RGMII_SSR_SP_100MBPS << RGMII_SSR_V (devnum));
1012 else if (speed == 10)
1013 reg = (RGMII_SSR_SP_10MBPS << RGMII_SSR_V (devnum));
1015 printf("Error in RGMII Speed\n");
1018 out_be32((void *)RGMII_SSR, reg);
1020 #endif /* defined(CONFIG_440) && !defined(CONFIG_440SP) */
1022 #if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
1023 defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
1024 defined(CONFIG_405EX)
1026 reg = (RGMII_SSR_SP_1000MBPS << RGMII_SSR_V (devnum));
1027 else if (speed == 100)
1028 reg = (RGMII_SSR_SP_100MBPS << RGMII_SSR_V (devnum));
1029 else if (speed == 10)
1030 reg = (RGMII_SSR_SP_10MBPS << RGMII_SSR_V (devnum));
1032 printf("Error in RGMII Speed\n");
1035 out_be32((void *)RGMII_SSR, reg);
1036 #if defined(CONFIG_460GT)
1037 if ((devnum == 2) || (devnum == 3))
1038 out_be32((void *)RGMII_SSR + RGMII1_BASE_OFFSET, reg);
1042 /* set the Mal configuration reg */
1043 #if defined(CONFIG_440GX) || \
1044 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
1045 defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
1046 defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
1047 defined(CONFIG_405EX)
1048 mtdcr (malmcr, MAL_CR_PLBB | MAL_CR_OPBBL | MAL_CR_LEA |
1049 MAL_CR_PLBLT_DEFAULT | MAL_CR_EOPIE | 0x00330000);
1051 mtdcr (malmcr, MAL_CR_PLBB | MAL_CR_OPBBL | MAL_CR_LEA | MAL_CR_PLBLT_DEFAULT);
1052 /* Errata 1.12: MAL_1 -- Disable MAL bursting */
1053 if (get_pvr() == PVR_440GP_RB) {
1054 mtdcr (malmcr, mfdcr(malmcr) & ~MAL_CR_PLBB);
1059 * Malloc MAL buffer desciptors, make sure they are
1060 * aligned on cache line boundary size
1061 * (401/403/IOP480 = 16, 405 = 32)
1062 * and doesn't cross cache block boundaries.
1064 if (hw_p->first_init == 0) {
1065 debug("*** Allocating descriptor memory ***\n");
1067 bd_cached = (u32)malloc_aligned(MAL_ALLOC_SIZE, 4096);
1069 printf("%s: Error allocating MAL descriptor buffers!\n");
1073 #ifdef CONFIG_4xx_DCACHE
1074 flush_dcache_range(bd_cached, bd_cached + MAL_ALLOC_SIZE);
1076 bd_uncached = bis->bi_memsize;
1078 bd_uncached = last_used_ea + MAL_ALLOC_SIZE;
1080 last_used_ea = bd_uncached;
1081 program_tlb(bd_cached, bd_uncached, MAL_ALLOC_SIZE,
1082 TLB_WORD2_I_ENABLE);
1084 bd_uncached = bd_cached;
1086 hw_p->tx_phys = bd_cached;
1087 hw_p->rx_phys = bd_cached + MAL_TX_DESC_SIZE;
1088 hw_p->tx = (mal_desc_t *)(bd_uncached);
1089 hw_p->rx = (mal_desc_t *)(bd_uncached + MAL_TX_DESC_SIZE);
1090 debug("hw_p->tx=%08x, hw_p->rx=%08x\n", hw_p->tx, hw_p->rx);
1093 for (i = 0; i < NUM_TX_BUFF; i++) {
1094 hw_p->tx[i].ctrl = 0;
1095 hw_p->tx[i].data_len = 0;
1096 if (hw_p->first_init == 0)
1097 hw_p->txbuf_ptr = malloc_aligned(MAL_ALLOC_SIZE,
1099 hw_p->tx[i].data_ptr = hw_p->txbuf_ptr;
1100 if ((NUM_TX_BUFF - 1) == i)
1101 hw_p->tx[i].ctrl |= MAL_TX_CTRL_WRAP;
1102 hw_p->tx_run[i] = -1;
1103 debug("TX_BUFF %d @ 0x%08lx\n", i, (u32)hw_p->tx[i].data_ptr);
1106 for (i = 0; i < NUM_RX_BUFF; i++) {
1107 hw_p->rx[i].ctrl = 0;
1108 hw_p->rx[i].data_len = 0;
1109 hw_p->rx[i].data_ptr = (char *)NetRxPackets[i];
1110 if ((NUM_RX_BUFF - 1) == i)
1111 hw_p->rx[i].ctrl |= MAL_RX_CTRL_WRAP;
1112 hw_p->rx[i].ctrl |= MAL_RX_CTRL_EMPTY | MAL_RX_CTRL_INTR;
1113 hw_p->rx_ready[i] = -1;
1114 debug("RX_BUFF %d @ 0x%08lx\n", i, (u32)hw_p->rx[i].data_ptr);
1119 reg |= dev->enetaddr[0]; /* set high address */
1121 reg |= dev->enetaddr[1];
1123 out_be32((void *)EMAC_IAH + hw_p->hw_addr, reg);
1126 reg |= dev->enetaddr[2]; /* set low address */
1128 reg |= dev->enetaddr[3];
1130 reg |= dev->enetaddr[4];
1132 reg |= dev->enetaddr[5];
1134 out_be32((void *)EMAC_IAL + hw_p->hw_addr, reg);
1138 /* setup MAL tx & rx channel pointers */
1139 #if defined (CONFIG_405EP) || defined (CONFIG_440EP) || defined (CONFIG_440GR)
1140 mtdcr (maltxctp2r, hw_p->tx_phys);
1142 mtdcr (maltxctp1r, hw_p->tx_phys);
1144 #if defined(CONFIG_440)
1145 mtdcr (maltxbattr, 0x0);
1146 mtdcr (malrxbattr, 0x0);
1149 #if defined(CONFIG_460EX) || defined(CONFIG_460GT)
1150 mtdcr (malrxctp8r, hw_p->rx_phys);
1151 /* set RX buffer size */
1152 mtdcr (malrcbs8, ENET_MAX_MTU_ALIGNED / 16);
1154 mtdcr (malrxctp1r, hw_p->rx_phys);
1155 /* set RX buffer size */
1156 mtdcr (malrcbs1, ENET_MAX_MTU_ALIGNED / 16);
1159 #if defined (CONFIG_440GX)
1161 /* setup MAL tx & rx channel pointers */
1162 mtdcr (maltxbattr, 0x0);
1163 mtdcr (malrxbattr, 0x0);
1164 mtdcr (maltxctp2r, hw_p->tx_phys);
1165 mtdcr (malrxctp2r, hw_p->rx_phys);
1166 /* set RX buffer size */
1167 mtdcr (malrcbs2, ENET_MAX_MTU_ALIGNED / 16);
1170 /* setup MAL tx & rx channel pointers */
1171 mtdcr (maltxbattr, 0x0);
1172 mtdcr (maltxctp3r, hw_p->tx_phys);
1173 mtdcr (malrxbattr, 0x0);
1174 mtdcr (malrxctp3r, hw_p->rx_phys);
1175 /* set RX buffer size */
1176 mtdcr (malrcbs3, ENET_MAX_MTU_ALIGNED / 16);
1178 #endif /* CONFIG_440GX */
1179 #if defined (CONFIG_460GT)
1181 /* setup MAL tx & rx channel pointers */
1182 mtdcr (maltxbattr, 0x0);
1183 mtdcr (malrxbattr, 0x0);
1184 mtdcr (maltxctp2r, hw_p->tx_phys);
1185 mtdcr (malrxctp16r, hw_p->rx_phys);
1186 /* set RX buffer size */
1187 mtdcr (malrcbs16, ENET_MAX_MTU_ALIGNED / 16);
1190 /* setup MAL tx & rx channel pointers */
1191 mtdcr (maltxbattr, 0x0);
1192 mtdcr (malrxbattr, 0x0);
1193 mtdcr (maltxctp3r, hw_p->tx_phys);
1194 mtdcr (malrxctp24r, hw_p->rx_phys);
1195 /* set RX buffer size */
1196 mtdcr (malrcbs24, ENET_MAX_MTU_ALIGNED / 16);
1198 #endif /* CONFIG_460GT */
1201 /* setup MAL tx & rx channel pointers */
1202 #if defined(CONFIG_440)
1203 mtdcr (maltxbattr, 0x0);
1204 mtdcr (malrxbattr, 0x0);
1206 mtdcr (maltxctp0r, hw_p->tx_phys);
1207 mtdcr (malrxctp0r, hw_p->rx_phys);
1208 /* set RX buffer size */
1209 mtdcr (malrcbs0, ENET_MAX_MTU_ALIGNED / 16);
1213 /* Enable MAL transmit and receive channels */
1214 #if defined(CONFIG_405EP) || defined(CONFIG_440EP) || defined(CONFIG_440GR)
1215 mtdcr (maltxcasr, (MAL_TXRX_CASR >> (hw_p->devnum*2)));
1217 mtdcr (maltxcasr, (MAL_TXRX_CASR >> hw_p->devnum));
1219 mtdcr (malrxcasr, (MAL_TXRX_CASR >> hw_p->devnum));
1221 /* set transmit enable & receive enable */
1222 out_be32((void *)EMAC_M0 + hw_p->hw_addr, EMAC_M0_TXE | EMAC_M0_RXE);
1224 mode_reg = in_be32((void *)EMAC_M1 + hw_p->hw_addr);
1226 /* set rx-/tx-fifo size */
1227 mode_reg = (mode_reg & ~EMAC_MR1_FIFO_MASK) | EMAC_MR1_FIFO_SIZE;
1230 if (speed == _1000BASET) {
1231 #if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
1232 defined(CONFIG_440SP) || defined(CONFIG_440SPE)
1235 mfsdr (sdr_pfc1, pfc1);
1236 pfc1 |= SDR0_PFC1_EM_1000;
1237 mtsdr (sdr_pfc1, pfc1);
1239 mode_reg = mode_reg | EMAC_M1_MF_1000MBPS | EMAC_M1_IST;
1240 } else if (speed == _100BASET)
1241 mode_reg = mode_reg | EMAC_M1_MF_100MBPS | EMAC_M1_IST;
1243 mode_reg = mode_reg & ~0x00C00000; /* 10 MBPS */
1245 mode_reg = mode_reg | 0x80000000 | EMAC_M1_IST;
1247 out_be32((void *)EMAC_M1 + hw_p->hw_addr, mode_reg);
1249 /* Enable broadcast and indvidual address */
1250 /* TBS: enabling runts as some misbehaved nics will send runts */
1251 out_be32((void *)EMAC_RXM + hw_p->hw_addr, EMAC_RMR_BAE | EMAC_RMR_IAE);
1253 /* we probably need to set the tx mode1 reg? maybe at tx time */
1255 /* set transmit request threshold register */
1256 out_be32((void *)EMAC_TRTR + hw_p->hw_addr, 0x18000000); /* 256 byte threshold */
1258 /* set receive low/high water mark register */
1259 #if defined(CONFIG_440)
1260 /* 440s has a 64 byte burst length */
1261 out_be32((void *)EMAC_RX_HI_LO_WMARK + hw_p->hw_addr, 0x80009000);
1263 /* 405s have a 16 byte burst length */
1264 out_be32((void *)EMAC_RX_HI_LO_WMARK + hw_p->hw_addr, 0x0f002000);
1265 #endif /* defined(CONFIG_440) */
1266 out_be32((void *)EMAC_TXM1 + hw_p->hw_addr, 0xf8640000);
1268 /* Set fifo limit entry in tx mode 0 */
1269 out_be32((void *)EMAC_TXM0 + hw_p->hw_addr, 0x00000003);
1271 out_be32((void *)EMAC_I_FRAME_GAP_REG + hw_p->hw_addr, 0x00000008);
1274 hw_p->emac_ier = EMAC_ISR_PTLE | EMAC_ISR_BFCS | EMAC_ISR_ORE | EMAC_ISR_IRE;
1275 if (speed == _100BASET)
1276 hw_p->emac_ier = hw_p->emac_ier | EMAC_ISR_SYE;
1278 out_be32((void *)EMAC_ISR + hw_p->hw_addr, 0xffffffff); /* clear pending interrupts */
1279 out_be32((void *)EMAC_IER + hw_p->hw_addr, hw_p->emac_ier);
1281 if (hw_p->first_init == 0) {
1283 * Connect interrupt service routines
1285 irq_install_handler(ETH_IRQ_NUM(hw_p->devnum),
1286 (interrupt_handler_t *) enetInt, dev);
1289 mtmsr (msr); /* enable interrupts again */
1292 hw_p->first_init = 1;
1298 static int ppc_4xx_eth_send (struct eth_device *dev, volatile void *ptr,
1301 struct enet_frame *ef_ptr;
1302 ulong time_start, time_now;
1303 unsigned long temp_txm0;
1304 EMAC_4XX_HW_PST hw_p = dev->priv;
1306 ef_ptr = (struct enet_frame *) ptr;
1308 /*-----------------------------------------------------------------------+
1309 * Copy in our address into the frame.
1310 *-----------------------------------------------------------------------*/
1311 (void) memcpy (ef_ptr->source_addr, dev->enetaddr, ENET_ADDR_LENGTH);
1313 /*-----------------------------------------------------------------------+
1314 * If frame is too long or too short, modify length.
1315 *-----------------------------------------------------------------------*/
1316 /* TBS: where does the fragment go???? */
1317 if (len > ENET_MAX_MTU)
1320 /* memcpy ((void *) &tx_buff[tx_slot], (const void *) ptr, len); */
1321 memcpy ((void *) hw_p->txbuf_ptr, (const void *) ptr, len);
1322 flush_dcache_range((u32)hw_p->txbuf_ptr, (u32)hw_p->txbuf_ptr + len);
1324 /*-----------------------------------------------------------------------+
1325 * set TX Buffer busy, and send it
1326 *-----------------------------------------------------------------------*/
1327 hw_p->tx[hw_p->tx_slot].ctrl = (MAL_TX_CTRL_LAST |
1328 EMAC_TX_CTRL_GFCS | EMAC_TX_CTRL_GP) &
1329 ~(EMAC_TX_CTRL_ISA | EMAC_TX_CTRL_RSA);
1330 if ((NUM_TX_BUFF - 1) == hw_p->tx_slot)
1331 hw_p->tx[hw_p->tx_slot].ctrl |= MAL_TX_CTRL_WRAP;
1333 hw_p->tx[hw_p->tx_slot].data_len = (short) len;
1334 hw_p->tx[hw_p->tx_slot].ctrl |= MAL_TX_CTRL_READY;
1338 out_be32((void *)EMAC_TXM0 + hw_p->hw_addr,
1339 in_be32((void *)EMAC_TXM0 + hw_p->hw_addr) | EMAC_TXM0_GNP0);
1340 #ifdef INFO_4XX_ENET
1341 hw_p->stats.pkts_tx++;
1344 /*-----------------------------------------------------------------------+
1345 * poll unitl the packet is sent and then make sure it is OK
1346 *-----------------------------------------------------------------------*/
1347 time_start = get_timer (0);
1349 temp_txm0 = in_be32((void *)EMAC_TXM0 + hw_p->hw_addr);
1350 /* loop until either TINT turns on or 3 seconds elapse */
1351 if ((temp_txm0 & EMAC_TXM0_GNP0) != 0) {
1352 /* transmit is done, so now check for errors
1353 * If there is an error, an interrupt should
1354 * happen when we return
1356 time_now = get_timer (0);
1357 if ((time_now - time_start) > 3000) {
1367 #if defined (CONFIG_440) || defined(CONFIG_405EX)
1369 #if defined(CONFIG_440SP) || defined(CONFIG_440SPE)
1371 * Hack: On 440SP all enet irq sources are located on UIC1
1372 * Needs some cleanup. --sr
1374 #define UIC0MSR uic1msr
1375 #define UIC0SR uic1sr
1376 #define UIC1MSR uic1msr
1377 #define UIC1SR uic1sr
1378 #elif defined(CONFIG_460EX) || defined(CONFIG_460GT)
1380 * Hack: On 460EX/GT all enet irq sources are located on UIC2
1381 * Needs some cleanup. --ag
1383 #define UIC0MSR uic2msr
1384 #define UIC0SR uic2sr
1385 #define UIC1MSR uic2msr
1386 #define UIC1SR uic2sr
1388 #define UIC0MSR uic0msr
1389 #define UIC0SR uic0sr
1390 #define UIC1MSR uic1msr
1391 #define UIC1SR uic1sr
1394 #if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
1395 defined(CONFIG_405EX)
1396 #define UICMSR_ETHX uic0msr
1397 #define UICSR_ETHX uic0sr
1398 #elif defined(CONFIG_460EX) || defined(CONFIG_460GT)
1399 #define UICMSR_ETHX uic2msr
1400 #define UICSR_ETHX uic2sr
1402 #define UICMSR_ETHX uic1msr
1403 #define UICSR_ETHX uic1sr
1406 int enetInt (struct eth_device *dev)
1409 int rc = -1; /* default to not us */
1410 unsigned long mal_isr;
1411 unsigned long emac_isr = 0;
1412 unsigned long mal_rx_eob;
1413 unsigned long my_uic0msr, my_uic1msr;
1414 unsigned long my_uicmsr_ethx;
1416 #if defined(CONFIG_440GX)
1417 unsigned long my_uic2msr;
1419 EMAC_4XX_HW_PST hw_p;
1422 * Because the mal is generic, we need to get the current
1425 #if defined(CONFIG_NET_MULTI)
1426 dev = eth_get_dev();
1433 /* enter loop that stays in interrupt code until nothing to service */
1437 my_uic0msr = mfdcr (UIC0MSR);
1438 my_uic1msr = mfdcr (UIC1MSR);
1439 #if defined(CONFIG_440GX)
1440 my_uic2msr = mfdcr (uic2msr);
1442 my_uicmsr_ethx = mfdcr (UICMSR_ETHX);
1444 if (!(my_uic0msr & (UIC_MRE | UIC_MTE))
1445 && !(my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE))
1446 && !(my_uicmsr_ethx & (UIC_ETH0 | UIC_ETH1))) {
1450 #if defined (CONFIG_440GX)
1451 if (!(my_uic0msr & (UIC_MRE | UIC_MTE))
1452 && !(my_uic2msr & (UIC_ETH2 | UIC_ETH3))) {
1457 /* get and clear controller status interrupts */
1458 /* look at Mal and EMAC interrupts */
1459 if ((my_uic0msr & (UIC_MRE | UIC_MTE))
1460 || (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE))) {
1461 /* we have a MAL interrupt */
1462 mal_isr = mfdcr (malesr);
1463 /* look for mal error */
1464 if (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE)) {
1465 mal_err (dev, mal_isr, my_uic1msr, MAL_UIC_DEF, MAL_UIC_ERR);
1471 /* port by port dispatch of emac interrupts */
1472 if (hw_p->devnum == 0) {
1473 if (UIC_ETH0 & my_uicmsr_ethx) { /* look for EMAC errors */
1474 emac_isr = in_be32((void *)EMAC_ISR + hw_p->hw_addr);
1475 if ((hw_p->emac_ier & emac_isr) != 0) {
1476 emac_err (dev, emac_isr);
1481 if ((hw_p->emac_ier & emac_isr)
1482 || (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE))) {
1483 mtdcr (UIC0SR, UIC_MRE | UIC_MTE); /* Clear */
1484 mtdcr (UIC1SR, UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
1485 mtdcr (UICSR_ETHX, UIC_ETH0); /* Clear */
1486 return (rc); /* we had errors so get out */
1490 #if !defined(CONFIG_440SP)
1491 if (hw_p->devnum == 1) {
1492 if (UIC_ETH1 & my_uicmsr_ethx) { /* look for EMAC errors */
1493 emac_isr = in_be32((void *)EMAC_ISR + hw_p->hw_addr);
1494 if ((hw_p->emac_ier & emac_isr) != 0) {
1495 emac_err (dev, emac_isr);
1500 if ((hw_p->emac_ier & emac_isr)
1501 || (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE))) {
1502 mtdcr (UIC0SR, UIC_MRE | UIC_MTE); /* Clear */
1503 mtdcr (UIC1SR, UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
1504 mtdcr (UICSR_ETHX, UIC_ETH1); /* Clear */
1505 return (rc); /* we had errors so get out */
1508 #if defined (CONFIG_440GX)
1509 if (hw_p->devnum == 2) {
1510 if (UIC_ETH2 & my_uic2msr) { /* look for EMAC errors */
1511 emac_isr = in_be32((void *)EMAC_ISR + hw_p->hw_addr);
1512 if ((hw_p->emac_ier & emac_isr) != 0) {
1513 emac_err (dev, emac_isr);
1518 if ((hw_p->emac_ier & emac_isr)
1519 || (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE))) {
1520 mtdcr (UIC0SR, UIC_MRE | UIC_MTE); /* Clear */
1521 mtdcr (UIC1SR, UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
1522 mtdcr (uic2sr, UIC_ETH2);
1523 return (rc); /* we had errors so get out */
1527 if (hw_p->devnum == 3) {
1528 if (UIC_ETH3 & my_uic2msr) { /* look for EMAC errors */
1529 emac_isr = in_be32((void *)EMAC_ISR + hw_p->hw_addr);
1530 if ((hw_p->emac_ier & emac_isr) != 0) {
1531 emac_err (dev, emac_isr);
1536 if ((hw_p->emac_ier & emac_isr)
1537 || (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE))) {
1538 mtdcr (UIC0SR, UIC_MRE | UIC_MTE); /* Clear */
1539 mtdcr (UIC1SR, UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
1540 mtdcr (uic2sr, UIC_ETH3);
1541 return (rc); /* we had errors so get out */
1544 #endif /* CONFIG_440GX */
1545 #endif /* !CONFIG_440SP */
1547 /* handle MAX TX EOB interrupt from a tx */
1548 if (my_uic0msr & UIC_MTE) {
1549 mal_rx_eob = mfdcr (maltxeobisr);
1550 mtdcr (maltxeobisr, mal_rx_eob);
1551 mtdcr (UIC0SR, UIC_MTE);
1553 /* handle MAL RX EOB interupt from a receive */
1554 /* check for EOB on valid channels */
1555 if (my_uic0msr & UIC_MRE) {
1556 mal_rx_eob = mfdcr (malrxeobisr);
1558 (0x80000000 >> (hw_p->devnum * MAL_RX_CHAN_MUL)))
1559 != 0) { /* call emac routine for channel x */
1561 mtdcr(malrxeobisr, mal_rx_eob); */
1562 enet_rcv (dev, emac_isr);
1563 /* indicate that we serviced an interrupt */
1569 mtdcr (UIC0SR, UIC_MRE); /* Clear */
1570 mtdcr (UIC1SR, UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
1571 switch (hw_p->devnum) {
1573 mtdcr (UICSR_ETHX, UIC_ETH0);
1576 mtdcr (UICSR_ETHX, UIC_ETH1);
1578 #if defined (CONFIG_440GX)
1580 mtdcr (uic2sr, UIC_ETH2);
1583 mtdcr (uic2sr, UIC_ETH3);
1585 #endif /* CONFIG_440GX */
1594 #else /* CONFIG_440 */
1596 int enetInt (struct eth_device *dev)
1599 int rc = -1; /* default to not us */
1600 unsigned long mal_isr;
1601 unsigned long emac_isr = 0;
1602 unsigned long mal_rx_eob;
1603 unsigned long my_uicmsr;
1605 EMAC_4XX_HW_PST hw_p;
1608 * Because the mal is generic, we need to get the current
1611 #if defined(CONFIG_NET_MULTI)
1612 dev = eth_get_dev();
1619 /* enter loop that stays in interrupt code until nothing to service */
1623 my_uicmsr = mfdcr (uicmsr);
1625 if ((my_uicmsr & (MAL_UIC_DEF | EMAC_UIC_DEF)) == 0) { /* not for us */
1628 /* get and clear controller status interrupts */
1629 /* look at Mal and EMAC interrupts */
1630 if ((MAL_UIC_DEF & my_uicmsr) != 0) { /* we have a MAL interrupt */
1631 mal_isr = mfdcr (malesr);
1632 /* look for mal error */
1633 if ((my_uicmsr & MAL_UIC_ERR) != 0) {
1634 mal_err (dev, mal_isr, my_uicmsr, MAL_UIC_DEF, MAL_UIC_ERR);
1640 /* port by port dispatch of emac interrupts */
1642 if ((SEL_UIC_DEF(hw_p->devnum) & my_uicmsr) != 0) { /* look for EMAC errors */
1643 emac_isr = in_be32((void *)EMAC_ISR + hw_p->hw_addr);
1644 if ((hw_p->emac_ier & emac_isr) != 0) {
1645 emac_err (dev, emac_isr);
1650 if (((hw_p->emac_ier & emac_isr) != 0) || ((MAL_UIC_ERR & my_uicmsr) != 0)) {
1651 mtdcr (uicsr, MAL_UIC_DEF | SEL_UIC_DEF(hw_p->devnum)); /* Clear */
1652 return (rc); /* we had errors so get out */
1655 /* handle MAX TX EOB interrupt from a tx */
1656 if (my_uicmsr & UIC_MAL_TXEOB) {
1657 mal_rx_eob = mfdcr (maltxeobisr);
1658 mtdcr (maltxeobisr, mal_rx_eob);
1659 mtdcr (uicsr, UIC_MAL_TXEOB);
1661 /* handle MAL RX EOB interupt from a receive */
1662 /* check for EOB on valid channels */
1663 if (my_uicmsr & UIC_MAL_RXEOB)
1665 mal_rx_eob = mfdcr (malrxeobisr);
1666 if ((mal_rx_eob & (0x80000000 >> hw_p->devnum)) != 0) { /* call emac routine for channel x */
1668 mtdcr(malrxeobisr, mal_rx_eob); */
1669 enet_rcv (dev, emac_isr);
1670 /* indicate that we serviced an interrupt */
1675 mtdcr (uicsr, MAL_UIC_DEF|EMAC_UIC_DEF|EMAC_UIC_DEF1); /* Clear */
1676 #if defined(CONFIG_405EZ)
1677 mtsdr (sdricintstat, SDR_ICRX_STAT | SDR_ICTX0_STAT | SDR_ICTX1_STAT);
1678 #endif /* defined(CONFIG_405EZ) */
1685 #endif /* CONFIG_440 */
1687 /*-----------------------------------------------------------------------------+
1689 *-----------------------------------------------------------------------------*/
1690 static void mal_err (struct eth_device *dev, unsigned long isr,
1691 unsigned long uic, unsigned long maldef,
1692 unsigned long mal_errr)
1694 EMAC_4XX_HW_PST hw_p = dev->priv;
1696 mtdcr (malesr, isr); /* clear interrupt */
1698 /* clear DE interrupt */
1699 mtdcr (maltxdeir, 0xC0000000);
1700 mtdcr (malrxdeir, 0x80000000);
1702 #ifdef INFO_4XX_ENET
1703 printf ("\nMAL error occured.... ISR = %lx UIC = = %lx MAL_DEF = %lx MAL_ERR= %lx \n", isr, uic, maldef, mal_errr);
1706 eth_init (hw_p->bis); /* start again... */
1709 /*-----------------------------------------------------------------------------+
1710 * EMAC Error Routine
1711 *-----------------------------------------------------------------------------*/
1712 static void emac_err (struct eth_device *dev, unsigned long isr)
1714 EMAC_4XX_HW_PST hw_p = dev->priv;
1716 printf ("EMAC%d error occured.... ISR = %lx\n", hw_p->devnum, isr);
1717 out_be32((void *)EMAC_ISR + hw_p->hw_addr, isr);
1720 /*-----------------------------------------------------------------------------+
1721 * enet_rcv() handles the ethernet receive data
1722 *-----------------------------------------------------------------------------*/
1723 static void enet_rcv (struct eth_device *dev, unsigned long malisr)
1725 struct enet_frame *ef_ptr;
1726 unsigned long data_len;
1727 unsigned long rx_eob_isr;
1728 EMAC_4XX_HW_PST hw_p = dev->priv;
1734 rx_eob_isr = mfdcr (malrxeobisr);
1735 if ((0x80000000 >> (hw_p->devnum * MAL_RX_CHAN_MUL)) & rx_eob_isr) {
1737 mtdcr (malrxeobisr, rx_eob_isr);
1740 while (1) { /* do all */
1743 if ((MAL_RX_CTRL_EMPTY & hw_p->rx[i].ctrl)
1744 || (loop_count >= NUM_RX_BUFF))
1749 data_len = (unsigned long) hw_p->rx[i].data_len & 0x0fff; /* Get len */
1751 if (data_len > ENET_MAX_MTU) /* Check len */
1754 if (EMAC_RX_ERRORS & hw_p->rx[i].ctrl) { /* Check Errors */
1756 hw_p->stats.rx_err_log[hw_p->
1759 hw_p->rx_err_index++;
1760 if (hw_p->rx_err_index ==
1762 hw_p->rx_err_index =
1765 } /* data_len < max mtu */
1767 if (!data_len) { /* no data */
1768 hw_p->rx[i].ctrl |= MAL_RX_CTRL_EMPTY; /* Free Recv Buffer */
1770 hw_p->stats.data_len_err++; /* Error at Rx */
1775 /* Check if user has already eaten buffer */
1776 /* if not => ERROR */
1777 else if (hw_p->rx_ready[hw_p->rx_i_index] != -1) {
1778 if (hw_p->is_receiving)
1779 printf ("ERROR : Receive buffers are full!\n");
1782 hw_p->stats.rx_frames++;
1783 hw_p->stats.rx += data_len;
1784 ef_ptr = (struct enet_frame *) hw_p->rx[i].
1786 #ifdef INFO_4XX_ENET
1787 hw_p->stats.pkts_rx++;
1792 hw_p->rx_ready[hw_p->rx_i_index] = i;
1794 if (NUM_RX_BUFF == hw_p->rx_i_index)
1795 hw_p->rx_i_index = 0;
1798 if (NUM_RX_BUFF == hw_p->rx_slot)
1802 * free receive buffer only when
1803 * buffer has been handled (eth_rx)
1804 rx[i].ctrl |= MAL_RX_CTRL_EMPTY;
1808 } /* if EMACK_RXCHL */
1812 static int ppc_4xx_eth_rx (struct eth_device *dev)
1817 EMAC_4XX_HW_PST hw_p = dev->priv;
1819 hw_p->is_receiving = 1; /* tell driver */
1823 * use ring buffer and
1824 * get index from rx buffer desciptor queue
1826 user_index = hw_p->rx_ready[hw_p->rx_u_index];
1827 if (user_index == -1) {
1829 break; /* nothing received - leave for() loop */
1833 mtmsr (msr & ~(MSR_EE));
1835 length = hw_p->rx[user_index].data_len & 0x0fff;
1837 /* Pass the packet up to the protocol layers. */
1838 /* NetReceive(NetRxPackets[rxIdx], length - 4); */
1839 /* NetReceive(NetRxPackets[i], length); */
1840 invalidate_dcache_range((u32)hw_p->rx[user_index].data_ptr,
1841 (u32)hw_p->rx[user_index].data_ptr +
1843 NetReceive (NetRxPackets[user_index], length - 4);
1844 /* Free Recv Buffer */
1845 hw_p->rx[user_index].ctrl |= MAL_RX_CTRL_EMPTY;
1846 /* Free rx buffer descriptor queue */
1847 hw_p->rx_ready[hw_p->rx_u_index] = -1;
1849 if (NUM_RX_BUFF == hw_p->rx_u_index)
1850 hw_p->rx_u_index = 0;
1852 #ifdef INFO_4XX_ENET
1853 hw_p->stats.pkts_handled++;
1856 mtmsr (msr); /* Enable IRQ's */
1859 hw_p->is_receiving = 0; /* tell driver */
1864 int ppc_4xx_eth_initialize (bd_t * bis)
1866 static int virgin = 0;
1867 struct eth_device *dev;
1869 EMAC_4XX_HW_PST hw = NULL;
1870 u8 ethaddr[4 + CONFIG_EMAC_NR_START][6];
1873 #if defined(CONFIG_440GX)
1876 mfsdr (sdr_pfc1, pfc1);
1877 pfc1 &= ~(0x01e00000);
1879 mtsdr (sdr_pfc1, pfc1);
1882 /* first clear all mac-addresses */
1883 for (eth_num = 0; eth_num < LAST_EMAC_NUM; eth_num++)
1884 memcpy(ethaddr[eth_num], "\0\0\0\0\0\0", 6);
1886 for (eth_num = 0; eth_num < LAST_EMAC_NUM; eth_num++) {
1888 default: /* fall through */
1890 memcpy(ethaddr[eth_num + CONFIG_EMAC_NR_START],
1891 bis->bi_enetaddr, 6);
1892 hw_addr[eth_num] = 0x0;
1894 #ifdef CONFIG_HAS_ETH1
1896 memcpy(ethaddr[eth_num + CONFIG_EMAC_NR_START],
1897 bis->bi_enet1addr, 6);
1898 hw_addr[eth_num] = 0x100;
1901 #ifdef CONFIG_HAS_ETH2
1903 memcpy(ethaddr[eth_num + CONFIG_EMAC_NR_START],
1904 bis->bi_enet2addr, 6);
1905 #if defined(CONFIG_460GT)
1906 hw_addr[eth_num] = 0x300;
1908 hw_addr[eth_num] = 0x400;
1912 #ifdef CONFIG_HAS_ETH3
1914 memcpy(ethaddr[eth_num + CONFIG_EMAC_NR_START],
1915 bis->bi_enet3addr, 6);
1916 #if defined(CONFIG_460GT)
1917 hw_addr[eth_num] = 0x400;
1919 hw_addr[eth_num] = 0x600;
1926 /* set phy num and mode */
1927 bis->bi_phynum[0] = CONFIG_PHY_ADDR;
1928 bis->bi_phymode[0] = 0;
1930 #if defined(CONFIG_PHY1_ADDR)
1931 bis->bi_phynum[1] = CONFIG_PHY1_ADDR;
1932 bis->bi_phymode[1] = 0;
1934 #if defined(CONFIG_440GX)
1935 bis->bi_phynum[2] = CONFIG_PHY2_ADDR;
1936 bis->bi_phynum[3] = CONFIG_PHY3_ADDR;
1937 bis->bi_phymode[2] = 2;
1938 bis->bi_phymode[3] = 2;
1941 #if defined(CONFIG_440GX) || \
1942 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
1943 defined(CONFIG_405EX)
1944 ppc_4xx_eth_setup_bridge(0, bis);
1947 for (eth_num = 0; eth_num < LAST_EMAC_NUM; eth_num++) {
1949 * See if we can actually bring up the interface,
1950 * otherwise, skip it
1952 if (memcmp (ethaddr[eth_num], "\0\0\0\0\0\0", 6) == 0) {
1953 bis->bi_phymode[eth_num] = BI_PHYMODE_NONE;
1957 /* Allocate device structure */
1958 dev = (struct eth_device *) malloc (sizeof (*dev));
1960 printf ("ppc_4xx_eth_initialize: "
1961 "Cannot allocate eth_device %d\n", eth_num);
1964 memset(dev, 0, sizeof(*dev));
1966 /* Allocate our private use data */
1967 hw = (EMAC_4XX_HW_PST) malloc (sizeof (*hw));
1969 printf ("ppc_4xx_eth_initialize: "
1970 "Cannot allocate private hw data for eth_device %d",
1975 memset(hw, 0, sizeof(*hw));
1977 hw->hw_addr = hw_addr[eth_num];
1978 memcpy (dev->enetaddr, ethaddr[eth_num], 6);
1979 hw->devnum = eth_num;
1980 hw->print_speed = 1;
1982 sprintf (dev->name, "ppc_4xx_eth%d", eth_num - CONFIG_EMAC_NR_START);
1983 dev->priv = (void *) hw;
1984 dev->init = ppc_4xx_eth_init;
1985 dev->halt = ppc_4xx_eth_halt;
1986 dev->send = ppc_4xx_eth_send;
1987 dev->recv = ppc_4xx_eth_rx;
1990 /* set the MAL IER ??? names may change with new spec ??? */
1991 #if defined(CONFIG_440SPE) || \
1992 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
1993 defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
1994 defined(CONFIG_405EX)
1996 MAL_IER_PT | MAL_IER_PRE | MAL_IER_PWE |
1997 MAL_IER_DE | MAL_IER_OTE | MAL_IER_OE | MAL_IER_PE ;
2000 MAL_IER_DE | MAL_IER_NE | MAL_IER_TE |
2001 MAL_IER_OPBE | MAL_IER_PLBE;
2003 mtdcr (malesr, 0xffffffff); /* clear pending interrupts */
2004 mtdcr (maltxdeir, 0xffffffff); /* clear pending interrupts */
2005 mtdcr (malrxdeir, 0xffffffff); /* clear pending interrupts */
2006 mtdcr (malier, mal_ier);
2008 /* install MAL interrupt handler */
2009 irq_install_handler (VECNUM_MS,
2010 (interrupt_handler_t *) enetInt,
2012 irq_install_handler (VECNUM_MTE,
2013 (interrupt_handler_t *) enetInt,
2015 irq_install_handler (VECNUM_MRE,
2016 (interrupt_handler_t *) enetInt,
2018 irq_install_handler (VECNUM_TXDE,
2019 (interrupt_handler_t *) enetInt,
2021 irq_install_handler (VECNUM_RXDE,
2022 (interrupt_handler_t *) enetInt,
2027 #if defined(CONFIG_NET_MULTI)
2033 #if defined(CONFIG_NET_MULTI)
2034 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
2035 miiphy_register (dev->name,
2036 emac4xx_miiphy_read, emac4xx_miiphy_write);
2039 } /* end for each supported device */
2044 #if !defined(CONFIG_NET_MULTI)
2045 void eth_halt (void) {
2047 ppc_4xx_eth_halt(emac0_dev);
2053 int eth_init (bd_t *bis)
2055 ppc_4xx_eth_initialize(bis);
2057 return ppc_4xx_eth_init(emac0_dev, bis);
2059 printf("ERROR: ethaddr not set!\n");
2064 int eth_send(volatile void *packet, int length)
2066 return (ppc_4xx_eth_send(emac0_dev, packet, length));
2071 return (ppc_4xx_eth_rx(emac0_dev));
2074 int emac4xx_miiphy_initialize (bd_t * bis)
2076 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
2077 miiphy_register ("ppc_4xx_eth0",
2078 emac4xx_miiphy_read, emac4xx_miiphy_write);
2083 #endif /* !defined(CONFIG_NET_MULTI) */