ethernet/sun/sunbmac.c

256 static void idle_transceiver(void __iomem *tregs)
261 		sbus_writel(MGMT_CLKOFF, tregs + TCVR_MPAL);
262 		sbus_readl(tregs + TCVR_MPAL);
263 		sbus_writel(MGMT_CLKON, tregs + TCVR_MPAL);
264 		sbus_readl(tregs + TCVR_MPAL);
268 static void write_tcvr_bit(struct bigmac *bp, void __iomem *tregs, int bit)
273 			    tregs + TCVR_MPAL);
274 		sbus_readl(tregs + TCVR_MPAL);
276 			    tregs + TCVR_MPAL);
277 		sbus_readl(tregs + TCVR_MPAL);
281 			    tregs + TCVR_MPAL);
282 		sbus_readl(tregs + TCVR_MPAL);
284 			    tregs + TCVR_MPAL);
285 		sbus_readl(tregs + TCVR_MPAL);
291 static int read_tcvr_bit(struct bigmac *bp, void __iomem *tregs)
296 		sbus_writel(MGMT_PAL_EXT_MDIO, tregs + TCVR_MPAL);
297 		sbus_readl(tregs + TCVR_MPAL);
299 			    tregs + TCVR_MPAL);
300 		sbus_readl(tregs + TCVR_MPAL);
301 		retval = (sbus_readl(tregs + TCVR_MPAL) & MGMT_PAL_INT_MDIO) >> 3;
303 		sbus_writel(MGMT_PAL_INT_MDIO, tregs + TCVR_MPAL);
304 		sbus_readl(tregs + TCVR_MPAL);
305 		sbus_writel(MGMT_PAL_INT_MDIO | MGMT_PAL_DCLOCK, tregs + TCVR_MPAL);
306 		sbus_readl(tregs + TCVR_MPAL);
307 		retval = (sbus_readl(tregs + TCVR_MPAL) & MGMT_PAL_EXT_MDIO) >> 2;
314 static int read_tcvr_bit2(struct bigmac *bp, void __iomem *tregs)
319 		sbus_writel(MGMT_PAL_EXT_MDIO, tregs + TCVR_MPAL);
320 		sbus_readl(tregs + TCVR_MPAL);
321 		retval = (sbus_readl(tregs + TCVR_MPAL) & MGMT_PAL_INT_MDIO) >> 3;
322 		sbus_writel(MGMT_PAL_EXT_MDIO | MGMT_PAL_DCLOCK, tregs + TCVR_MPAL);
323 		sbus_readl(tregs + TCVR_MPAL);
325 		sbus_writel(MGMT_PAL_INT_MDIO, tregs + TCVR_MPAL);
326 		sbus_readl(tregs + TCVR_MPAL);
327 		retval = (sbus_readl(tregs + TCVR_MPAL) & MGMT_PAL_EXT_MDIO) >> 2;
328 		sbus_writel(MGMT_PAL_INT_MDIO | MGMT_PAL_DCLOCK, tregs + TCVR_MPAL);
329 		sbus_readl(tregs + TCVR_MPAL);
337 			  void __iomem *tregs,
343 		write_tcvr_bit(bp, tregs, ((byte >> shift) & 1));
348 static void bigmac_tcvr_write(struct bigmac *bp, void __iomem *tregs,
365 	idle_transceiver(tregs);
366 	write_tcvr_bit(bp, tregs, 0);
367 	write_tcvr_bit(bp, tregs, 1);
368 	write_tcvr_bit(bp, tregs, 0);
369 	write_tcvr_bit(bp, tregs, 1);
371 	put_tcvr_byte(bp, tregs,
375 	put_tcvr_byte(bp, tregs, reg);
377 	write_tcvr_bit(bp, tregs, 1);
378 	write_tcvr_bit(bp, tregs, 0);
382 		write_tcvr_bit(bp, tregs, (val >> shift) & 1);
388 				       void __iomem *tregs,
404 	idle_transceiver(tregs);
405 	write_tcvr_bit(bp, tregs, 0);
406 	write_tcvr_bit(bp, tregs, 1);
407 	write_tcvr_bit(bp, tregs, 1);
408 	write_tcvr_bit(bp, tregs, 0);
410 	put_tcvr_byte(bp, tregs,
414 	put_tcvr_byte(bp, tregs, reg);
419 		(void) read_tcvr_bit2(bp, tregs);
420 		(void) read_tcvr_bit2(bp, tregs);
425 			tmp = read_tcvr_bit2(bp, tregs);
430 		(void) read_tcvr_bit2(bp, tregs);
431 		(void) read_tcvr_bit2(bp, tregs);
432 		(void) read_tcvr_bit2(bp, tregs);
436 		(void) read_tcvr_bit(bp, tregs);
437 		(void) read_tcvr_bit(bp, tregs);
442 			tmp = read_tcvr_bit(bp, tregs);
447 		(void) read_tcvr_bit(bp, tregs);
448 		(void) read_tcvr_bit(bp, tregs);
449 		(void) read_tcvr_bit(bp, tregs);
456 	void __iomem *tregs = bp->tregs;
459 	idle_transceiver(tregs);
461 		    tregs + TCVR_MPAL);
462 	sbus_readl(tregs + TCVR_MPAL);
467 	sbus_writel(MGMT_PAL_INT_MDIO | MGMT_PAL_EXT_MDIO, tregs + TCVR_MPAL);
468 	sbus_readl(tregs + TCVR_MPAL);
471 	mpal = sbus_readl(tregs + TCVR_MPAL);
475 			    tregs + TCVR_TPAL);
476 		sbus_readl(tregs + TCVR_TPAL);
481 			    tregs + TCVR_TPAL);
482 		sbus_readl(tregs + TCVR_TPAL);
487 		       sbus_readl(tregs + TCVR_MPAL),
488 		       sbus_readl(tregs + TCVR_TPAL));
494 static int try_next_permutation(struct bigmac *bp, void __iomem *tregs)
501 		bigmac_tcvr_write(bp, tregs, MII_BMCR, bp->sw_bmcr);
503 		bigmac_tcvr_write(bp, tregs, MII_BMCR, bp->sw_bmcr);
507 			bp->sw_bmcr = bigmac_tcvr_read(bp, tregs, MII_BMCR);
515 		bp->sw_bmcr = bigmac_tcvr_read(bp, tregs, MII_BMCR);
519 		bigmac_tcvr_write(bp, tregs, MII_BMCR, bp->sw_bmcr);
530 	void __iomem *tregs = bp->tregs;
535 		bp->sw_bmsr = bigmac_tcvr_read(bp, tregs, MII_BMSR);
536 		bp->sw_bmcr = bigmac_tcvr_read(bp, tregs, MII_BMCR);
548 				ret = try_next_permutation(bp, tregs);
585 	void __iomem *tregs = bp->tregs;
589 	bp->sw_bmsr	= bigmac_tcvr_read(bp, tregs, MII_BMSR);
590 	bp->sw_bmcr	= bigmac_tcvr_read(bp, tregs, MII_BMCR);
594 	bigmac_tcvr_write(bp, tregs, MII_BMCR, bp->sw_bmcr);
596 	bigmac_tcvr_write(bp, tregs, MII_BMCR, bp->sw_bmcr);
600 		bp->sw_bmcr = bigmac_tcvr_read(bp, tregs, MII_BMCR);
608 	bp->sw_bmcr = bigmac_tcvr_read(bp, tregs, MII_BMCR);
612 	bigmac_tcvr_write(bp, tregs, MII_BMCR, bp->sw_bmcr);
1050 	bp->sw_bmsr = bigmac_tcvr_read(bp, bp->tregs, MII_BMSR);
1151 	bp->tregs = of_ioremap(&op->resource[2], 0,
1153 	if (!bp->tregs) {
1210 	if (bp->tregs)
1211 		of_iounmap(&op->resource[2], bp->tregs, TCVR_REG_SIZE);
1251 	of_iounmap(&op->resource[2], bp->tregs, TCVR_REG_SIZE);