From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexandre TORGUE Subject: [RESEND PATCH net-next 03/13] stmmac: rework synopsys id read, moved to dwmac setup Date: Fri, 1 Apr 2016 11:37:27 +0200 Message-ID: <1459503457-22569-4-git-send-email-alexandre.torgue@st.com> References: <1459503457-22569-1-git-send-email-alexandre.torgue@st.com> Mime-Version: 1.0 Content-Type: text/plain Cc: Lars Persson To: , Return-path: Received: from mx08-00178001.pphosted.com ([91.207.212.93]:2883 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754250AbcDAJiC (ORCPT ); Fri, 1 Apr 2016 05:38:02 -0400 In-Reply-To: <1459503457-22569-1-git-send-email-alexandre.torgue@st.com> Sender: netdev-owner@vger.kernel.org List-ID: synopsys_uid is only used once after setup, to get synopsys_id by using shitf/mask operation. It's no longer used then. So, remove this temporary variable and directly compute synopsys_id from setup routine. Acked-by: Giuseppe Cavallaro Signed-off-by: Fabrice Gasnier Signed-off-by: Alexandre TORGUE diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h index 6cea61b..66e132f 100644 --- a/drivers/net/ethernet/stmicro/stmmac/common.h +++ b/drivers/net/ethernet/stmicro/stmmac/common.h @@ -498,7 +498,6 @@ struct mac_device_info { const struct stmmac_hwtimestamp *ptp; struct mii_regs mii; /* MII register Addresses */ struct mac_link link; - unsigned int synopsys_uid; void __iomem *pcsr; /* vpointer to device CSRs */ int multicast_filter_bins; int unicast_filter_entries; @@ -507,8 +506,10 @@ struct mac_device_info { }; struct mac_device_info *dwmac1000_setup(void __iomem *ioaddr, int mcbins, - int perfect_uc_entries); -struct mac_device_info *dwmac100_setup(void __iomem *ioaddr); + int perfect_uc_entries, + int *synopsys_id); +struct mac_device_info *dwmac100_setup(void __iomem *ioaddr, int *synopsys_id); + void stmmac_set_mac_addr(void __iomem *ioaddr, u8 addr[6], unsigned int high, unsigned int low); @@ -521,4 +522,24 @@ void dwmac_dma_flush_tx_fifo(void __iomem *ioaddr); extern const struct stmmac_mode_ops ring_mode_ops; extern const struct stmmac_mode_ops chain_mode_ops; +/** + * stmmac_get_synopsys_id - return the SYINID. + * @priv: driver private structure + * Description: this simple function is to decode and return the SYINID + * starting from the HW core register. + */ +static inline u32 stmmac_get_synopsys_id(u32 hwid) +{ + /* Check Synopsys Id (not available on old chips) */ + if (likely(hwid)) { + u32 uid = ((hwid & 0x0000ff00) >> 8); + u32 synid = (hwid & 0x000000ff); + + pr_info("stmmac - user ID: 0x%x, Synopsys ID: 0x%x\n", + uid, synid); + + return synid; + } + return 0; +} #endif /* __COMMON_H__ */ diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c index c294117..fb1eb57 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c @@ -491,7 +491,8 @@ static const struct stmmac_ops dwmac1000_ops = { }; struct mac_device_info *dwmac1000_setup(void __iomem *ioaddr, int mcbins, - int perfect_uc_entries) + int perfect_uc_entries, + int *synopsys_id) { struct mac_device_info *mac; u32 hwid = readl(ioaddr + GMAC_VERSION); @@ -516,7 +517,9 @@ struct mac_device_info *dwmac1000_setup(void __iomem *ioaddr, int mcbins, mac->link.speed = GMAC_CONTROL_FES; mac->mii.addr = GMAC_MII_ADDR; mac->mii.data = GMAC_MII_DATA; - mac->synopsys_uid = hwid; + + /* Get and dump the chip ID */ + *synopsys_id = stmmac_get_synopsys_id(hwid); return mac; } diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c index f8dd773..6418b2e 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c @@ -173,7 +173,7 @@ static const struct stmmac_ops dwmac100_ops = { .get_umac_addr = dwmac100_get_umac_addr, }; -struct mac_device_info *dwmac100_setup(void __iomem *ioaddr) +struct mac_device_info *dwmac100_setup(void __iomem *ioaddr, int *synopsys_id) { struct mac_device_info *mac; @@ -192,7 +192,8 @@ struct mac_device_info *dwmac100_setup(void __iomem *ioaddr) mac->link.speed = 0; mac->mii.addr = MAC_MII_ADDR; mac->mii.data = MAC_MII_DATA; - mac->synopsys_uid = 0; + /* Synopsys Id is not available on old chips */ + *synopsys_id = 0; return mac; } diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 8103527..2ebee81 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -1468,29 +1468,6 @@ static void stmmac_mmc_setup(struct stmmac_priv *priv) } /** - * stmmac_get_synopsys_id - return the SYINID. - * @priv: driver private structure - * Description: this simple function is to decode and return the SYINID - * starting from the HW core register. - */ -static u32 stmmac_get_synopsys_id(struct stmmac_priv *priv) -{ - u32 hwid = priv->hw->synopsys_uid; - - /* Check Synopsys Id (not available on old chips) */ - if (likely(hwid)) { - u32 uid = ((hwid & 0x0000ff00) >> 8); - u32 synid = (hwid & 0x000000ff); - - pr_info("stmmac - user ID: 0x%x, Synopsys ID: 0x%x\n", - uid, synid); - - return synid; - } - return 0; -} - -/** * stmmac_selec_desc_mode - to select among: normal/alternate/extend descriptors * @priv: driver private structure * Description: select the Enhanced/Alternate or Normal descriptors. @@ -2763,18 +2740,16 @@ static int stmmac_hw_init(struct stmmac_priv *priv) priv->dev->priv_flags |= IFF_UNICAST_FLT; mac = dwmac1000_setup(priv->ioaddr, priv->plat->multicast_filter_bins, - priv->plat->unicast_filter_entries); + priv->plat->unicast_filter_entries, + &priv->synopsys_id); } else { - mac = dwmac100_setup(priv->ioaddr); + mac = dwmac100_setup(priv->ioaddr, &priv->synopsys_id); } if (!mac) return -ENOMEM; priv->hw = mac; - /* Get and dump the chip ID */ - priv->synopsys_id = stmmac_get_synopsys_id(priv); - /* To use the chained or ring mode */ if (chain_mode) { priv->hw->mode = &chain_mode_ops; -- 1.9.1