From 4f40bf46897ddb57f149c0758f0cef0cc7782f7f Mon Sep 17 00:00:00 2001 From: akeemting Date: Wed, 3 Dec 2008 21:19:16 -0800 Subject: [PATCH] jme: GHC register control fix for new hardware Due to the hardware design, except the first chip on the market, other chips needs to setup the clock source for MAC processor implicitly through Global Host Control Register(GHC). (Strange design huh?) 10/100M uses the PCI-E as clock source, and 1G uses GPHY. And I reordered the code a little, to make it easier to read. Found-by: "Ethan" Fixed-by: "akeemting" Signed-off-by: "Guo-Fu Tseng" Acked-by: Jeff Garzik Signed-off-by: David S. Miller --- drivers/net/jme.c | 27 ++++++++++++++------------- drivers/net/jme.h | 28 +++++++++++++++++++++------- 2 files changed, 35 insertions(+), 20 deletions(-) diff --git a/drivers/net/jme.c b/drivers/net/jme.c index c3873879003b..e10d9f38662c 100644 --- a/drivers/net/jme.c +++ b/drivers/net/jme.c @@ -435,15 +435,18 @@ jme_check_link(struct net_device *netdev, int testonly) GHC_DPX); switch (phylink & PHY_LINK_SPEED_MASK) { case PHY_LINK_SPEED_10M: - ghc |= GHC_SPEED_10M; + ghc |= GHC_SPEED_10M | + GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE; strcat(linkmsg, "10 Mbps, "); break; case PHY_LINK_SPEED_100M: - ghc |= GHC_SPEED_100M; + ghc |= GHC_SPEED_100M | + GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE; strcat(linkmsg, "100 Mbps, "); break; case PHY_LINK_SPEED_1000M: - ghc |= GHC_SPEED_1000M; + ghc |= GHC_SPEED_1000M | + GHC_TO_CLK_GPHY | GHC_TXMAC_CLK_GPHY; strcat(linkmsg, "1000 Mbps, "); break; default: @@ -463,14 +466,6 @@ jme_check_link(struct net_device *netdev, int testonly) TXTRHD_TXREN | ((8 << TXTRHD_TXRL_SHIFT) & TXTRHD_TXRL)); } - strcat(linkmsg, (phylink & PHY_LINK_DUPLEX) ? - "Full-Duplex, " : - "Half-Duplex, "); - - if (phylink & PHY_LINK_MDI_STAT) - strcat(linkmsg, "MDI-X"); - else - strcat(linkmsg, "MDI"); gpreg1 = GPREG1_DEFAULT; if (is_buggy250(jme->pdev->device, jme->chiprev)) { @@ -492,11 +487,17 @@ jme_check_link(struct net_device *netdev, int testonly) break; } } - jwrite32(jme, JME_GPREG1, gpreg1); - jme->reg_ghc = ghc; + jwrite32(jme, JME_GPREG1, gpreg1); jwrite32(jme, JME_GHC, ghc); + jme->reg_ghc = ghc; + strcat(linkmsg, (phylink & PHY_LINK_DUPLEX) ? + "Full-Duplex, " : + "Half-Duplex, "); + strcat(linkmsg, (phylink & PHY_LINK_MDI_STAT) ? + "MDI-X" : + "MDI"); msg_link(jme, "Link is up at %s.\n", linkmsg); netif_carrier_on(netdev); } else { diff --git a/drivers/net/jme.h b/drivers/net/jme.h index f863aee6648b..adaf3ddbf783 100644 --- a/drivers/net/jme.h +++ b/drivers/net/jme.h @@ -815,16 +815,30 @@ static inline u32 smi_phy_addr(int x) * Global Host Control */ enum jme_ghc_bit_mask { - GHC_SWRST = 0x40000000, - GHC_DPX = 0x00000040, - GHC_SPEED = 0x00000030, - GHC_LINK_POLL = 0x00000001, + GHC_SWRST = 0x40000000, + GHC_DPX = 0x00000040, + GHC_SPEED = 0x00000030, + GHC_LINK_POLL = 0x00000001, }; enum jme_ghc_speed_val { - GHC_SPEED_10M = 0x00000010, - GHC_SPEED_100M = 0x00000020, - GHC_SPEED_1000M = 0x00000030, + GHC_SPEED_10M = 0x00000010, + GHC_SPEED_100M = 0x00000020, + GHC_SPEED_1000M = 0x00000030, +}; + +enum jme_ghc_to_clk { + GHC_TO_CLK_OFF = 0x00000000, + GHC_TO_CLK_GPHY = 0x00400000, + GHC_TO_CLK_PCIE = 0x00800000, + GHC_TO_CLK_INVALID = 0x00C00000, +}; + +enum jme_ghc_txmac_clk { + GHC_TXMAC_CLK_OFF = 0x00000000, + GHC_TXMAC_CLK_GPHY = 0x00100000, + GHC_TXMAC_CLK_PCIE = 0x00200000, + GHC_TXMAC_CLK_INVALID = 0x00300000, }; /* -- 2.30.2