From ef08af03ef85373901a2ca0241617e6e7e42685d Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Mon, 1 Sep 2008 12:49:20 +0100 Subject: sfc: Remove workaround for old firmware bug There was a bug in XAUI synchronisation in early 10Xpress firmware versions. This is fixed in released firmware and we do not need to work around it. Signed-off-by: Ben Hutchings Signed-off-by: Jeff Garzik --- drivers/net/sfc/falcon_xmac.c | 88 +------------------------------------------ 1 file changed, 1 insertion(+), 87 deletions(-) (limited to 'drivers/net/sfc/falcon_xmac.c') diff --git a/drivers/net/sfc/falcon_xmac.c b/drivers/net/sfc/falcon_xmac.c index 0d9f68ff71e..d4012314dd0 100644 --- a/drivers/net/sfc/falcon_xmac.c +++ b/drivers/net/sfc/falcon_xmac.c @@ -78,79 +78,7 @@ static void falcon_setup_xaui(struct efx_nic *efx) falcon_write(efx, &txdrv, XX_TXDRV_CTL_REG); } -static void falcon_hold_xaui_in_rst(struct efx_nic *efx) -{ - efx_oword_t reg; - - EFX_ZERO_OWORD(reg); - EFX_SET_OWORD_FIELD(reg, XX_PWRDNA_EN, 1); - EFX_SET_OWORD_FIELD(reg, XX_PWRDNB_EN, 1); - EFX_SET_OWORD_FIELD(reg, XX_PWRDNC_EN, 1); - EFX_SET_OWORD_FIELD(reg, XX_PWRDND_EN, 1); - EFX_SET_OWORD_FIELD(reg, XX_RSTPLLAB_EN, 1); - EFX_SET_OWORD_FIELD(reg, XX_RSTPLLCD_EN, 1); - EFX_SET_OWORD_FIELD(reg, XX_RESETA_EN, 1); - EFX_SET_OWORD_FIELD(reg, XX_RESETB_EN, 1); - EFX_SET_OWORD_FIELD(reg, XX_RESETC_EN, 1); - EFX_SET_OWORD_FIELD(reg, XX_RESETD_EN, 1); - EFX_SET_OWORD_FIELD(reg, XX_RSTXGXSRX_EN, 1); - EFX_SET_OWORD_FIELD(reg, XX_RSTXGXSTX_EN, 1); - falcon_write(efx, ®, XX_PWR_RST_REG); - udelay(10); -} - -static int _falcon_reset_xaui_a(struct efx_nic *efx) -{ - efx_oword_t reg; - - falcon_hold_xaui_in_rst(efx); - falcon_read(efx, ®, XX_PWR_RST_REG); - - /* Follow the RAMBUS XAUI data reset sequencing - * Channels A and B first: power down, reset PLL, reset, clear - */ - EFX_SET_OWORD_FIELD(reg, XX_PWRDNA_EN, 0); - EFX_SET_OWORD_FIELD(reg, XX_PWRDNB_EN, 0); - falcon_write(efx, ®, XX_PWR_RST_REG); - udelay(10); - - EFX_SET_OWORD_FIELD(reg, XX_RSTPLLAB_EN, 0); - falcon_write(efx, ®, XX_PWR_RST_REG); - udelay(10); - - EFX_SET_OWORD_FIELD(reg, XX_RESETA_EN, 0); - EFX_SET_OWORD_FIELD(reg, XX_RESETB_EN, 0); - falcon_write(efx, ®, XX_PWR_RST_REG); - udelay(10); - - /* Channels C and D: power down, reset PLL, reset, clear */ - EFX_SET_OWORD_FIELD(reg, XX_PWRDNC_EN, 0); - EFX_SET_OWORD_FIELD(reg, XX_PWRDND_EN, 0); - falcon_write(efx, ®, XX_PWR_RST_REG); - udelay(10); - - EFX_SET_OWORD_FIELD(reg, XX_RSTPLLCD_EN, 0); - falcon_write(efx, ®, XX_PWR_RST_REG); - udelay(10); - - EFX_SET_OWORD_FIELD(reg, XX_RESETC_EN, 0); - EFX_SET_OWORD_FIELD(reg, XX_RESETD_EN, 0); - falcon_write(efx, ®, XX_PWR_RST_REG); - udelay(10); - - /* Setup XAUI */ - falcon_setup_xaui(efx); - udelay(10); - - /* Take XGXS out of reset */ - EFX_ZERO_OWORD(reg); - falcon_write(efx, ®, XX_PWR_RST_REG); - udelay(10); - - return 0; -} - -static int _falcon_reset_xaui_b(struct efx_nic *efx) +int falcon_reset_xaui(struct efx_nic *efx) { efx_oword_t reg; int count; @@ -171,20 +99,6 @@ static int _falcon_reset_xaui_b(struct efx_nic *efx) return -ETIMEDOUT; } -int falcon_reset_xaui(struct efx_nic *efx) -{ - int rc; - - if (EFX_WORKAROUND_9388(efx)) { - falcon_hold_xaui_in_rst(efx); - efx->phy_op->reset_xaui(efx); - rc = _falcon_reset_xaui_a(efx); - } else { - rc = _falcon_reset_xaui_b(efx); - } - return rc; -} - static bool falcon_xgmii_status(struct efx_nic *efx) { efx_oword_t reg; -- cgit v1.2.3