Hi Prafulla, Prafulla Wadaskar wrote: > Chips supprted:- > 1. 88E6161 6 port gbe swtich with 5 integrated PHYs > 2. 88E6165 6 port gbe swtich with 5 integrated PHYs > Note: This driver is supported and tested against > kirkwood egiga interface, other interfaces can be added > > Contributors: > Yotam Admon <yo...@marvell.com> > Michael Blostein <michae...@marvell.com > > Reviewed by: Ronen Shitrit <rshit...@marvell.com> > Signed-off-by: Prafulla Wadaskar <prafu...@marvell.com> > --- > Changelog:- > v2: updated as per review comments by Wolfgand Denk > removed other two drivers form earlier patch > debug_prints removed > driver moved to drivers/net/ > > drivers/net/Makefile | 1 + > drivers/net/mv88e61xx.c | 291 > +++++++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 292 insertions(+), 0 deletions(-) > create mode 100644 drivers/net/mv88e61xx.c > > diff --git a/drivers/net/Makefile b/drivers/net/Makefile > index f0c5654..7482327 100644 > --- a/drivers/net/Makefile > +++ b/drivers/net/Makefile > @@ -47,6 +47,7 @@ COBJS-$(CONFIG_MACB) += macb.o > COBJS-$(CONFIG_MCFFEC) += mcffec.o mcfmii.o > COBJS-$(CONFIG_MPC5xxx_FEC) += mpc5xxx_fec.o > COBJS-$(CONFIG_MPC512x_FEC) += mpc512x_fec.o > +COBJS-$(CONFIG_SWITCH_MV88E61XX) += mv88e61xx.o > Please change this to CONFIG_MV88E61XX_SWITCH > COBJS-$(CONFIG_NATSEMI) += natsemi.o > COBJS-$(CONFIG_DRIVER_NE2000) += ne2000.o ne2000_base.o > COBJS-$(CONFIG_DRIVER_AX88796L) += ax88796.o ne2000_base.o > diff --git a/drivers/net/mv88e61xx.c b/drivers/net/mv88e61xx.c > new file mode 100644 > index 0000000..8167919 > --- /dev/null > +++ b/drivers/net/mv88e61xx.c > @@ -0,0 +1,291 @@ > +/* > + * (C) Copyright 2009 > + * Marvell Semiconductor <www.marvell.com> > + * Prafulla Wadaskar <prafu...@marvell.com> > + * > + * See file CREDITS for list of people who contributed to this > + * project. > + * > + * This program is free software; you can redistribute it and/or > + * modify it under the terms of the GNU General Public License as > + * published by the Free Software Foundation; either version 2 of > + * the License, or (at your option) any later version. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License > + * along with this program; if not, write to the Free Software > + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, > + * MA 02110-1301 USA > + */ > + > +#include <common.h> > + > +#if defined (CONFIG_SWITCH_MV88E61XX) > This is not needed - the makefile takes care of the conditional compilation > + > +/* Enabled ports can be enabled in board header file */ > +#if defined (CONFIG_MV88E61XX_ENABLED_PORTS) > +#define MV88E61XX_ENABLED_PORTS CONFIG_MV88E61XX_ENABLED_PORTS > +#else > +#define MV88E61XX_ENABLED_PORTS (BIT0 | BIT1 | BIT2 | \ > + BIT3 | BIT4 | BIT5) > +#endif > + > +#if defined (CONFIG_88E6161) > +#define MV88E61XX_NAME "88E6161" > +#elif defined (CONFIG_88E6165) > +#define MV88E61XX_NAME "88E6165" > +#else > +#define MV88E61XX_NAME "88E61XX" > +#endif > + > There doesn't appear to be any code difference between the different chips. What's the point of differentiating them here? If it is meaningful, you should at least #warning if none of the known-about variants is mentioned. > +#define MV88E61XX_PHY_TIMEOUT 100000 > +#define MV88E61XX_MAX_PORTS_NUM 0x6 > +/* CPU port can be configured in board header file */ > +#if defined (CONFIG_MV88E61XX_CPU_PORT) > +#define MV88E61XX_CPU_PORT CONFIG_MV88E61XX_CPU_PORT > +#else > +#define MV88E61XX_CPU_PORT 0x5 > +#endif > + > +#define MV88E61XX_PRT_STS_REG 0x1 > +#define MV88E61XX_PRT_CTRL_REG 0x4 > +#define MV88E61XX_PRT_VMAP_REG 0x6 > +#define MV88E61XX_PRT_VID_REG 0x7 > + > +#define MV88E61XX_PRT_OFST 0x10 > +#define MV88E61XX_PHY_CMD 0x18 > +#define MV88E61XX_PHY_DATA 0x19 > +#define MV88E61XX_GLOBAL2_REG_DEVADR 0x1C > + > +#ifdef CONFIG_KIRKWOOD_EGIGA > +#define smi_wr_reg eth_smi_reg_write > +#define smi_rd_reg eth_smi_reg_read > +#else /* add new interface above this */ > +#error Unsupported interface > +#endif > + > Please find a better way to do this. Board-specific code doesn't belong in a driver. > +/* Chip Address mode > + * The Switch support two modes of operation > + * 1. single chip mode and > + * 2. Multi-chip mode > + * Refer chip documentation for more details > + * > + * By default single chip mode is configured > + * multichip mode operation can be configured in board header > + */ > +#ifndef CONFIG_MV88E61XX_MULTICHIP_ADRMODE > +#define mv88e61xx_wr_phy smi_wr_reg > +#define mv88e61xx_rd_phy smi_rd_reg > +#else > +void mv88e61xx_wr_phy(u32 port, u32 phy_adr, u32 reg_ofs, u16 data) > If you're going to play games with macros & function names, please do it in a header file > +{ > + u16 reg; > + u32 smi_dev_addr; > + > + smi_dev_addr = KW_REG_READ(KW_ETH_PHY_ADDR_REG(port)); > + do { > + smi_rd_reg(port, smi_dev_addr, 0x0, ®); > + } while ((reg & BIT15)); > Is there any possibility this (and all the others) will become infinite loops? > + /* Poll till SMIBusy bit is clear */ > + smi_wr_reg(port, smi_dev_addr, 0x1, data); > + /* Write data to Switch indirect data register */ > + smi_wr_reg(port, smi_dev_addr, 0x0, > + reg_ofs | (phy_adr << 5) | BIT10 | BIT12 | BIT15); > + /* Write command to Switch indirect command register (write) */ > +} > + > +void mv88e61xx_rd_phy(u32 port, u32 phy_adr, u32 reg_ofs, u16 * data) > +{ > + u16 reg; > + u32 smi_dev_addr; > + > + smi_dev_addr = KW_REG_READ(KW_ETH_PHY_ADDR_REG(port)); > + do { > + smi_rd_reg(port, smi_dev_addr, 0x0, ®); > + } while ((reg & BIT15)); > + /* Poll till SMIBusy bit is clear */ > + smi_wr_reg(port, smi_dev_addr, 0x0, > + reg_ofs | (phy_adr << 5) | BIT10 | BIT12 | BIT15); > + /* Write command to Switch indirect command register (read) */ > + do { > + smi_rd_reg(port, smi_dev_addr, 0x0, ®); > + } while ((reg & BIT15)); > + /* Poll till SMIBusy bit is clear */ > + smi_rd_reg(port, smi_dev_addr, 0x1, (u16 *) & data); > + /* Read data from Switch indirect data register */ > +} > +#endif /* CONFIG_MV88E61XX_MULTICHIP_ADRMODE */ > + > +static void mv88e61xx_vlaninit(u32 port, u32 cpu_port, u32 max_prtnum, > + u32 ports_ofs, u32 port_mask) > +{ > + u32 prt; > + u16 reg; > + > + /* be sure all ports are disabled */ > + for (prt = 0; prt < max_prtnum; prt++) { > + mv88e61xx_rd_phy(port, ports_ofs + prt, MV88E61XX_PRT_CTRL_REG, > + ®); > + reg &= ~0x3; > + mv88e61xx_wr_phy(port, ports_ofs + prt, MV88E61XX_PRT_CTRL_REG, > + reg); > + } > + /* Set CPU port VID to 0x1 */ > + mv88e61xx_rd_phy(port, (ports_ofs + cpu_port), MV88E61XX_PRT_VID_REG, > + ®); > + reg &= ~0xfff; > + reg |= 0x1; > + mv88e61xx_wr_phy(port, (ports_ofs + cpu_port), MV88E61XX_PRT_VID_REG, > + reg); > + > + /* Setting Port default priority for all ports to zero */ > + for (prt = 0; prt < max_prtnum; prt++) { > + mv88e61xx_rd_phy(port, ports_ofs + prt, MV88E61XX_PRT_VID_REG, > + ®); > + reg &= ~0xc000; > + mv88e61xx_wr_phy(port, ports_ofs + prt, MV88E61XX_PRT_VID_REG, > + reg); > + } > + /* Setting VID and VID map for all ports except CPU port */ > + for (prt = 0; prt < max_prtnum; prt++) { > + /* only for enabled ports */ > + if ((1 << prt) & port_mask) { > + /* skip CPU port */ > + if (prt == cpu_port) > + continue; > + > + /* > + * set Ports VLAN Mapping. > + * port prt <--> MV88E61XX_CPU_PORT VLAN #prt+1. > + */ > + > + mv88e61xx_rd_phy(port, ports_ofs + prt, > + MV88E61XX_PRT_VID_REG, ®); > + reg &= ~0x0fff; > + reg |= (prt + 1); > + mv88e61xx_wr_phy(port, ports_ofs + prt, > + MV88E61XX_PRT_VID_REG, reg); > + > + /* > + * Set Vlan map table for all ports to send only to > + * MV88E61XX_CPU_PORT > + */ > + mv88e61xx_rd_phy(port, ports_ofs + prt, > + MV88E61XX_PRT_VMAP_REG, ®); > + reg &= ~((1 << max_prtnum) - 1); > + reg |= (1 << cpu_port); > + mv88e61xx_wr_phy(port, ports_ofs + prt, > + MV88E61XX_PRT_VMAP_REG, reg); > + } > + } > + /* Set Vlan map table for MV88E61XX_CPU_PORT to see all ports */ > + mv88e61xx_rd_phy(port, (ports_ofs + cpu_port), MV88E61XX_PRT_VMAP_REG, > + ®); > + reg &= ~((1 << max_prtnum) - 1); > + reg |= port_mask & ~(1 << cpu_port); > + mv88e61xx_wr_phy(port, (ports_ofs + cpu_port), MV88E61XX_PRT_VMAP_REG, > + reg); > + > + /* > + * enable only appropriate ports to forwarding mode > + * and disable the others > + */ > + for (prt = 0; prt < max_prtnum; prt++) { > + if ((1 << prt) & port_mask) { > + mv88e61xx_rd_phy(port, ports_ofs + prt, > + MV88E61XX_PRT_CTRL_REG, ®); > + reg |= 0x3; > + mv88e61xx_wr_phy(port, ports_ofs + prt, > + MV88E61XX_PRT_CTRL_REG, reg); > + } else { > + /* Disable port */ > + mv88e61xx_rd_phy(port, ports_ofs + prt, > + MV88E61XX_PRT_CTRL_REG, ®); > + reg &= ~0x3; > + mv88e61xx_wr_phy(port, ports_ofs + prt, > + MV88E61XX_PRT_CTRL_REG, reg); > + } > + } > +} > + > +/* > + * Marvell 88E61XX Switch initialization > + */ > +int mv_switch_88e61xx_init(u32 port) > +{ > + u32 prt; > + u16 reg; > + volatile u32 timeout; > Why is this marked volatile? > + > + /* Init vlan */ > + mv88e61xx_vlaninit(port, MV88E61XX_CPU_PORT, MV88E61XX_MAX_PORTS_NUM, > + MV88E61XX_PRT_OFST, MV88E61XX_ENABLED_PORTS); > + > + /* Enable RGMII delay on Tx and Rx for CPU port */ > + mv88e61xx_wr_phy(port, 0x14, 0x1a, 0x81e7); > + mv88e61xx_rd_phy(port, 0x15, 0x1a, ®); > + mv88e61xx_wr_phy(port, 0x15, 0x1a, 0x18); > + mv88e61xx_wr_phy(port, 0x14, 0x1a, 0xc1e7); > Please define these magic numbers somewhere > + > + for (prt = 0; prt < MV88E61XX_MAX_PORTS_NUM; prt++) { > + if (prt != MV88E61XX_CPU_PORT) { > + /*Enable Phy power up */ > + mv88e61xx_wr_phy(port, MV88E61XX_GLOBAL2_REG_DEVADR, > + MV88E61XX_PHY_DATA, 0x3360); > + mv88e61xx_wr_phy(port, MV88E61XX_GLOBAL2_REG_DEVADR, > + MV88E61XX_PHY_CMD, > + (0x9410 | (prt << 5))); > + > Same comment about magic numbers > + /* > + * Make sure SMIBusy bit cleared before another > + * SMI operation can take place > + */ > + timeout = MV88E61XX_PHY_TIMEOUT; > + do { > + mv88e61xx_rd_phy(port, > + MV88E61XX_GLOBAL2_REG_DEVADR, > + MV88E61XX_PHY_CMD, ®); > + if (timeout-- == 0) { > + printf("SMI busy timeout\n"); > + return -1; > + } > + } while (reg & BIT28); /* busy mask */ > + > + mv88e61xx_wr_phy(port, MV88E61XX_GLOBAL2_REG_DEVADR, > + MV88E61XX_PHY_DATA, 0x1140); > + mv88e61xx_wr_phy(port, MV88E61XX_GLOBAL2_REG_DEVADR, > + MV88E61XX_PHY_CMD, > + (0x9400 | (prt << 5))); > + > + /* > + * Make sure SMIBusy bit cleared before another > + * SMI operation can take place > + */ > + timeout = MV88E61XX_PHY_TIMEOUT; > + do { > + mv88e61xx_rd_phy(port, > + MV88E61XX_GLOBAL2_REG_DEVADR, > + MV88E61XX_PHY_CMD, ®); > + if (timeout-- == 0) { > + printf("SMI busy timeout\n"); > + return -1; > + } > + } while (reg & BIT28); /* busy mask */ > + } > + > + /*Enable port */ > + mv88e61xx_wr_phy(port, MV88E61XX_PRT_OFST + prt, 4, 0x7f); > + } > + /*Force CPU port to RGMII FDX 1000Base */ > + mv88e61xx_wr_phy(port, MV88E61XX_PRT_OFST + MV88E61XX_CPU_PORT, 1, > + 0x3e); > Is RGMII the only mode this chip supports? If not, why are you forcing it so? > + > + printf(MV88E61XX_NAME " Initialized\n"); > Shouldn't this message include the port number? > + return 0; > +} > + > +#endif /* CONFIG_SWITCH_MV88E61XX */ >
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