From 6fbc779c03591ee536fef9efb7d7e20f281d0b5c Mon Sep 17 00:00:00 2001 From: Victor Gallardo Date: Thu, 18 Sep 2008 12:41:26 +0000 Subject: ibm_newemac: Fix EMAC soft reset on 460EX/GT This patch fixes EMAC soft reset on 460EX/GT when no external clock is available. Signed-off-by: Victor Gallardo Signed-off-by: David S. Miller --- drivers/net/ibm_newemac/core.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'drivers/net/ibm_newemac/core.c') diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c index ccd9d9058f6d..58dfd32ccca8 100644 --- a/drivers/net/ibm_newemac/core.c +++ b/drivers/net/ibm_newemac/core.c @@ -130,6 +130,7 @@ static inline void emac_report_timeout_error(struct emac_instance *dev, const char *error) { if (emac_has_feature(dev, EMAC_FTR_440GX_PHY_CLK_FIX | + EMAC_FTR_460EX_PHY_CLK_FIX | EMAC_FTR_440EP_PHY_CLK_FIX)) DBG(dev, "%s" NL, error); else if (net_ratelimit()) @@ -351,10 +352,24 @@ static int emac_reset(struct emac_instance *dev) emac_tx_disable(dev); } +#ifdef CONFIG_PPC_DCR_NATIVE + /* Enable internal clock source */ + if (emac_has_feature(dev, EMAC_FTR_460EX_PHY_CLK_FIX)) + dcri_clrset(SDR0, SDR0_ETH_CFG, + 0, SDR0_ETH_CFG_ECS << dev->cell_index); +#endif + out_be32(&p->mr0, EMAC_MR0_SRST); while ((in_be32(&p->mr0) & EMAC_MR0_SRST) && n) --n; +#ifdef CONFIG_PPC_DCR_NATIVE + /* Enable external clock source */ + if (emac_has_feature(dev, EMAC_FTR_460EX_PHY_CLK_FIX)) + dcri_clrset(SDR0, SDR0_ETH_CFG, + SDR0_ETH_CFG_ECS << dev->cell_index, 0); +#endif + if (n) { dev->reset_failed = 0; return 0; @@ -2559,6 +2574,9 @@ static int __devinit emac_init_config(struct emac_instance *dev) /* Check EMAC version */ if (of_device_is_compatible(np, "ibm,emac4sync")) { dev->features |= (EMAC_FTR_EMAC4 | EMAC_FTR_EMAC4SYNC); + if (of_device_is_compatible(np, "ibm,emac-460ex") || + of_device_is_compatible(np, "ibm,emac-460gt")) + dev->features |= EMAC_FTR_460EX_PHY_CLK_FIX; } else if (of_device_is_compatible(np, "ibm,emac4")) { dev->features |= EMAC_FTR_EMAC4; if (of_device_is_compatible(np, "ibm,emac-440gx")) -- cgit v1.2.3