diff options
Diffstat (limited to 'drivers/net/tsec.c')
| -rw-r--r-- | drivers/net/tsec.c | 61 |
1 files changed, 34 insertions, 27 deletions
diff --git a/drivers/net/tsec.c b/drivers/net/tsec.c index 4bdc188..4aeb387 100644 --- a/drivers/net/tsec.c +++ b/drivers/net/tsec.c @@ -1,14 +1,11 @@ /* * Freescale Three Speed Ethernet Controller driver * - * This software may be used and distributed according to the - * terms of the GNU Public License, Version 2, incorporated - * herein by reference. - * * Copyright 2004-2011, 2013 Freescale Semiconductor, Inc. * (C) Copyright 2003, Motorola, Inc. * author Andy Fleming * + * SPDX-License-Identifier: GPL-2.0+ */ #include <config.h> @@ -84,8 +81,10 @@ static struct tsec_info_struct tsec_info[] = { /* Configure the TBI for SGMII operation */ static void tsec_configure_serdes(struct tsec_private *priv) { - /* Access TBI PHY registers at given TSEC register offset as opposed - * to the register offset used for external PHY accesses */ + /* + * Access TBI PHY registers at given TSEC register offset as opposed + * to the register offset used for external PHY accesses + */ tsec_local_mdio_write(priv->phyregs_sgmii, in_be32(&priv->regs->tbipa), 0, TBI_ANA, TBIANA_SETTINGS); tsec_local_mdio_write(priv->phyregs_sgmii, in_be32(&priv->regs->tbipa), @@ -100,7 +99,8 @@ static void tsec_configure_serdes(struct tsec_private *priv) /* Set the appropriate hash bit for the given addr */ -/* The algorithm works like so: +/* + * The algorithm works like so: * 1) Take the Destination Address (ie the multicast address), and * do a CRC on it (little endian), and reverse the bits of the * result. @@ -111,9 +111,9 @@ static void tsec_configure_serdes(struct tsec_private *priv) * hash index which gaddr register to use, and the 5 other bits * indicate which bit (assuming an IBM numbering scheme, which * for PowerPC (tm) is usually the case) in the register holds - * the entry. */ -static int -tsec_mcast_addr(struct eth_device *dev, const u8 *mcast_mac, u8 set) + * the entry. + */ +static int tsec_mcast_addr(struct eth_device *dev, const u8 *mcast_mac, u8 set) { struct tsec_private *priv = (struct tsec_private *)dev->priv; struct tsec __iomem *regs = priv->regs; @@ -135,7 +135,8 @@ tsec_mcast_addr(struct eth_device *dev, const u8 *mcast_mac, u8 set) } #endif /* Multicast TFTP ? */ -/* Initialized required registers to appropriate values, zeroing +/* + * Initialized required registers to appropriate values, zeroing * those we don't care about (unless zero is bad, in which case, * choose a more appropriate value) */ @@ -181,7 +182,8 @@ static void init_registers(struct tsec __iomem *regs) } -/* Configure maccfg2 based on negotiated speed and duplex +/* + * Configure maccfg2 based on negotiated speed and duplex * reported by PHY handling code */ static void adjust_link(struct tsec_private *priv, struct phy_device *phydev) @@ -212,7 +214,8 @@ static void adjust_link(struct tsec_private *priv, struct phy_device *phydev) case 10: maccfg2 |= MACCFG2_MII; - /* Set R100 bit in all modes although + /* + * Set R100 bit in all modes although * it is only used in RGMII mode */ if (phydev->speed == 100) @@ -315,7 +318,8 @@ void redundant_init(struct eth_device *dev) } #endif -/* Set up the buffers and their descriptors, and bring up the +/* + * Set up the buffers and their descriptors, and bring up the * interface */ static void startup_tsec(struct eth_device *dev) @@ -369,9 +373,10 @@ static void startup_tsec(struct eth_device *dev) clrbits_be32(®s->dmactrl, DMACTRL_GRS | DMACTRL_GTS); } -/* This returns the status bits of the device. The return value +/* + * This returns the status bits of the device. The return value * is never checked, and this is what the 8260 driver did, so we - * do the same. Presumably, this would be zero if there were no + * do the same. Presumably, this would be zero if there were no * errors */ static int tsec_send(struct eth_device *dev, void *packet, int length) @@ -446,7 +451,6 @@ static int tsec_recv(struct eth_device *dev) } return -1; - } /* Stop the interface */ @@ -468,10 +472,11 @@ static void tsec_halt(struct eth_device *dev) phy_shutdown(priv->phydev); } -/* Initializes data structures and registers for the controller, - * and brings the interface up. Returns the link status, meaning +/* + * Initializes data structures and registers for the controller, + * and brings the interface up. Returns the link status, meaning * that it returns success if the link is up, failure otherwise. - * This allows u-boot to find the first active controller. + * This allows U-Boot to find the first active controller. */ static int tsec_init(struct eth_device *dev, bd_t * bd) { @@ -489,7 +494,8 @@ static int tsec_init(struct eth_device *dev, bd_t * bd) /* Init ECNTRL */ out_be32(®s->ecntrl, ECNTRL_INIT_SETTINGS); - /* Copy the station address into the address registers. + /* + * Copy the station address into the address registers. * For a station address of 0x12345678ABCD in transmission * order (BE), MACnADDR1 is set to 0xCDAB7856 and * MACnADDR2 is set to 0x34120000. @@ -551,8 +557,8 @@ static phy_interface_t tsec_get_interface(struct tsec_private *priv) * be set by the platform code. */ if ((interface == PHY_INTERFACE_MODE_RGMII_ID) || - (interface == PHY_INTERFACE_MODE_RGMII_TXID) || - (interface == PHY_INTERFACE_MODE_RGMII_RXID)) + (interface == PHY_INTERFACE_MODE_RGMII_TXID) || + (interface == PHY_INTERFACE_MODE_RGMII_RXID)) return interface; return PHY_INTERFACE_MODE_RGMII; @@ -565,8 +571,8 @@ static phy_interface_t tsec_get_interface(struct tsec_private *priv) return PHY_INTERFACE_MODE_MII; } - -/* Discover which PHY is attached to the device, and configure it +/* + * Discover which PHY is attached to the device, and configure it * properly. If the PHY is not recognized, then return 0 * (failure). Otherwise, return 1 */ @@ -605,7 +611,8 @@ static int init_phy(struct eth_device *dev) return 1; } -/* Initialize device structure. Returns success if PHY +/* + * Initialize device structure. Returns success if PHY * initialization succeeded (i.e. if it recognizes the PHY) */ static int tsec_initialize(bd_t *bis, struct tsec_info_struct *tsec_info) @@ -645,7 +652,7 @@ static int tsec_initialize(bd_t *bis, struct tsec_info_struct *tsec_info) dev->mcast = tsec_mcast_addr; #endif - /* Tell u-boot to get the addr from the env */ + /* Tell U-Boot to get the addr from the env */ for (i = 0; i < 6; i++) dev->enetaddr[i] = 0; |