[U-Boot] [PATCH v5] Marvell MV88E61XX Switch Driver support
Ben Warren
biggerbadderben at gmail.com
Mon Apr 20 05:48:34 CEST 2009
Hi Prafulla,
Sorry for dragging this out... you've made a lot of good changes
already, and are almost there.
Prafulla Wadaskar wrote:
> Chips supported:-
> 1. 88E6161 6 port gbe swtich with 5 integrated PHYs
> 2. 88E6165 6 port gbe swtich with 5 integrated PHYs
> 2. 88E6132 3 port gbe swtich with 2 integrated PHYs
> Platform specific configuration supported
> default and router port vlan config supported
>
> Note: This driver is supported and tested against
> kirkwood egiga interface
>
> Contributors:
> Yotam Admon <yotam at marvell.com>
> Michael Blostein <michaelbl at marvell.com
>
> Reviewed by: Ronen Shitrit <rshitrit at marvell.com>
> Signed-off-by: Prafulla Wadaskar <prafulla at marvell.com>
> ---
> Changelog:-
> v2: updated as per review comments for v1
> removed other two drivers form earlier patch
> debug_prints removed
> driver moved to drivers/net/
>
> v3: updated as per review comments for v2
> miiphy interface used, platform specific dependency resolved
> Chip id detection and printing added
> common code forked out
> some cosmetic and magic number fixes
>
> v4: updated as per review comments for v3
> mv88e61xx.h added
> platform specific configuration support added
> some more documentation references provided
> cleaned rgmii delay enable related code
>
> v5: updated as per review comments for v3
> code moved to drivers/net/phy/
> vlan_init changed to vlan_config and platform specific
>
> drivers/net/phy/Makefile | 1 +
> drivers/net/phy/mv88e61xx.c | 313 +++++++++++++++++++++++++++++++++++++++++++
> drivers/net/phy/mv88e61xx.h | 73 ++++++++++
> 3 files changed, 387 insertions(+), 0 deletions(-)
> create mode 100644 drivers/net/phy/mv88e61xx.c
> create mode 100644 drivers/net/phy/mv88e61xx.h
>
> diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
> index 4fe3b05..3b92614 100644
> --- a/drivers/net/phy/Makefile
> +++ b/drivers/net/phy/Makefile
> @@ -26,6 +26,7 @@ include $(TOPDIR)/config.mk
> LIB := $(obj)libphy.a
>
> COBJS-$(CONFIG_BITBANGMII) += miiphybb.o
> +COBJS-$(CONFIG_MV88E61XX_SWITCH) += mv88e61xx.o
>
> COBJS := $(COBJS-y)
> SRCS := $(COBJS:.o=.c)
> diff --git a/drivers/net/phy/mv88e61xx.c b/drivers/net/phy/mv88e61xx.c
> new file mode 100644
> index 0000000..8ba2291
> --- /dev/null
> +++ b/drivers/net/phy/mv88e61xx.c
> @@ -0,0 +1,313 @@
> +/*
> + * (C) Copyright 2009
> + * Marvell Semiconductor <www.marvell.com>
> + * Prafulla Wadaskar <prafulla at 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>
> +#include <miiphy.h>
> +#include "mv88e61xx.h"
> +
> +/* Chip Address mode
> + * The Switch support two modes of operation
> + * 1. single chip mode and
> + * 2. Multi-chip mode
> + * Refer section 9.2 &9.3 in chip datasheet-02 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 miiphy_write
> +#define mv88e61xx_rd_phy miiphy_read
> +#else
> +
> +static int mv88e61xx_busychk_multic(u32 devaddr)
> +{
>
I mentioned this previously - if you're going to alias functions please
do it in a header (I see that you have one now).
> + u32 reg = 0;
> + u32 timeout = MV88E61XX_PHY_TIMEOUT;
> +
> + /* Poll till SMIBusy bit is clear */
> + do {
> + miiphy_read(name, devaddr, 0x0, ®);
> + if (timeout-- == 0) {
> + printf("SMI busy timeout\n");
> + return -1;
> + }
> + } while (reg & BIT15);
> + return 0;
> +}
> +
> +static void mv88e61xx_wr_phy(char *name, u32 phy_adr, u32 reg_ofs, u16 data)
> +{
> + u16 reg;
> + u32 mii_dev_addr;
> +
> + /* command to read PHY dev address */
> + if (!miiphy_read(name, 0xEE, 0xEE, &mii_dev_addr)) {
> + printf("Error..could not read PHY dev address\n");
> + return;
> + }
> + mv88e61xx_busychk_multic(mii_dev_addr);
> + /* Write data to Switch indirect data register */
> + miiphy_write(name, mii_dev_addr, 0x1, data);
> + /* Write command to Switch indirect command register (write) */
> + miiphy_write(name, mii_dev_addr, 0x0,
> + reg_ofs | (phy_adr << 5) | BIT10 | BIT12 | BIT15);
> +}
> +
> +static void mv88e61xx_rd_phy(char *name, u32 phy_adr, u32 reg_ofs, u16 * data)
> +{
> + u16 reg;
> + u32 mii_dev_addr;
> +
> + /* command to read PHY dev address */
> + if (!miiphy_read(name, 0xEE, 0xEE, &mii_dev_addr)) {
> + printf("Error..could not read PHY dev address\n");
> + return;
> + }
> + mv88e61xx_busychk_multic(mii_dev_addr);
> + /* Write command to Switch indirect command register (read) */
> + miiphy_write(name, mii_dev_addr, 0x0,
> + reg_ofs | (phy_adr << 5) | BIT10 | BIT12 | BIT15);
> + mv88e61xx_busychk_multic(mii_dev_addr);
> + /* Read data from Switch indirect data register */
> + miiphy_read(name, mii_dev_addr, 0x1, (u16 *) & data);
> +}
> +#endif /* CONFIG_MV88E61XX_MULTICHIP_ADRMODE */
> +
> +static void mv88e61xx_vlan_config(struct mv88f61xx_config *swconfig,
> + u32 max_prtnum, u32 ports_ofs)
>
Please rename these functions to make clear that you're configuring
port-based VLANs. Maybe 'mv88e61xx_port_vlan_config()' or something
like that.
> +{
> + u32 prt;
> + u16 reg;
> + char *name = swconfig->name;
> + u32 cpu_port = swconfig->cpuport;
> + u32 port_mask = swconfig->ports_enabled;
> + enum mv88f61xx_cfg_vlan vlancfg = swconfig->vlancfg;
> +
> + /* be sure all ports are disabled */
> + for (prt = 0; prt < max_prtnum; prt++) {
> + mv88e61xx_rd_phy(name, ports_ofs + prt, MV88E61XX_PRT_CTRL_REG,
> + ®);
> + reg &= ~0x3;
> + mv88e61xx_wr_phy(name, ports_ofs + prt, MV88E61XX_PRT_CTRL_REG,
> + reg);
> + }
> + /* Set CPU port VID to 0x1 */
> + mv88e61xx_rd_phy(name, (ports_ofs + cpu_port), MV88E61XX_PRT_VID_REG,
> + ®);
> + reg &= ~0xfff;
> + reg |= 0x1;
> + mv88e61xx_wr_phy(name, (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(name, ports_ofs + prt, MV88E61XX_PRT_VID_REG,
> + ®);
> + reg &= ~0xc000;
> + mv88e61xx_wr_phy(name, 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 <--> cpu_port VLAN #prt+1.
> + */
> + mv88e61xx_rd_phy(name, ports_ofs + prt,
> + MV88E61XX_PRT_VID_REG, ®);
> + reg &= ~0x0fff;
> + reg |= (prt + 1);
> + mv88e61xx_wr_phy(name, ports_ofs + prt,
> + MV88E61XX_PRT_VID_REG, reg);
> +
> + mv88e61xx_rd_phy(name, ports_ofs + prt,
> + MV88E61XX_PRT_VMAP_REG, ®);
> + if (vlancfg == MV88E61XX_VLANCFG_DEFAULT) {
> + /*
> + * all any port can send frames to all other ports
> + * ref: sec 3.2.1.1 of datasheet
> + */
> + reg |= 0x03f;
> + reg &= ~(1 << prt);
> + } else if (vlancfg == MV88E61XX_VLANCFG_ROUTER) {
> + /*
> + * all other ports can send frames to CPU port only
> + * ref: sec 3.2.1.2 of datasheet
> + */
> + reg &= ~((1 << max_prtnum) - 1);
> + reg |= (1 << cpu_port);
> + }
> + mv88e61xx_wr_phy(name, ports_ofs + prt,
> + MV88E61XX_PRT_VMAP_REG, reg);
> + }
> + }
> + /* Set Vlan map table for cpu_port to see all ports */
> + mv88e61xx_rd_phy(name, (ports_ofs + cpu_port), MV88E61XX_PRT_VMAP_REG,
> + ®);
> + reg &= ~((1 << max_prtnum) - 1);
> + reg |= port_mask & ~(1 << cpu_port);
> + mv88e61xx_wr_phy(name, (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(name, ports_ofs + prt,
> + MV88E61XX_PRT_CTRL_REG, ®);
> + reg |= 0x3;
> + mv88e61xx_wr_phy(name, ports_ofs + prt,
> + MV88E61XX_PRT_CTRL_REG, reg);
> + } else {
> + /* Disable port */
> + mv88e61xx_rd_phy(name, ports_ofs + prt,
> + MV88E61XX_PRT_CTRL_REG, ®);
> + reg &= ~0x3;
> + mv88e61xx_wr_phy(name, ports_ofs + prt,
> + MV88E61XX_PRT_CTRL_REG, reg);
> + }
> + }
> +}
> +
> +/*
> + * Make sure SMIBusy bit cleared before another
> + * SMI operation can take place
> + */
> +static int mv88361xx_busychk(char *name)
> +{
> + u32 reg = 0;
> + u32 timeout = MV88E61XX_PHY_TIMEOUT;
> + do {
> + mv88e61xx_rd_phy(name, MV88E61XX_GLB2REG_DEVADR,
> + MV88E61XX_PHY_CMD, (u16 *) & reg);
> + if (timeout-- == 0) {
> + printf("SMI busy timeout\n");
> + return -1;
> + }
> + } while (reg & BIT28); /* busy mask */
> + return 0;
> +}
> +
> +/*
> + * Marvell 88E61XX Switch initialization
> + */
> +int mv_switch_88e61xx_init(struct mv88f61xx_config *swconfig)
>
Please add this function's prototype to include/netdev.h
> +{
> + u32 prt;
> + u16 reg;
> + char *idstr;
> + char *name = swconfig->name;
> +
> + if (miiphy_set_current_dev(name)) {
> + printf("%s failed\n", __FUNCTION__);
> + return -1;
> + }
> +
> + if (swconfig->cpuport < 4) {
> + swconfig->cpuport = 5;
> + printf("Invalid cpu port config, using default port5\n");
> + }
> +
> + mv88e61xx_rd_phy(name, MV88E61XX_PRT_OFST, PHY_PHYIDR2, ®);
> + reg &= 0xfff0;
> + if (reg == 0x1610)
> + idstr = "88E6161";
> + if (reg == 0x1650)
> + idstr = "88E6165";
> + if (reg == 0x1210) {
> + idstr = "88E6123";
> + /* ports 2,3,4 not available */
> + swconfig->ports_enabled &= 0x023;
> + }
> +
> + /* Port based VLANs configuration */
> + if ((swconfig->vlancfg == MV88E61XX_VLANCFG_DEFAULT)
> + || (swconfig->vlancfg == MV88E61XX_VLANCFG_ROUTER))
> + mv88e61xx_vlan_config(swconfig, MV88E61XX_MAX_PORTS_NUM,
> + MV88E61XX_PRT_OFST);
> + else {
> + printf("Unsupported mode %s failed\n", __FUNCTION__);
> + return -1;
> + }
> +
> + if (swconfig->rgmii_delay == MV88E61XX_RGMII_DELAY_EN) {
> + /*
> + * Enable RGMII delay on Tx and Rx for CPU port
> + * Ref: sec 9.5 of chip datasheet-02
> + */
> + mv88e61xx_wr_phy(name, MV88E61XX_PRT_OFST + 5,
> + MV88E61XX_RGMII_TIMECTRL_REG, 0x18);
> + mv88e61xx_wr_phy(name, MV88E61XX_PRT_OFST + 4,
> + MV88E61XX_RGMII_TIMECTRL_REG, 0xc1e7);
> + }
> +
> + for (prt = 0; prt < MV88E61XX_MAX_PORTS_NUM; prt++) {
> + if (prt != swconfig->cpuport) {
> + /* Write Copper Specific control reg1 (0x14) for-
> + * Enable Phy power up
> + * Energy Detect on (sense&Xmit NLP Periodically
> + * reset other settings default
> + */
> + mv88e61xx_wr_phy(name, MV88E61XX_GLB2REG_DEVADR,
> + MV88E61XX_PHY_DATA, 0x3360);
> + mv88e61xx_wr_phy(name, MV88E61XX_GLB2REG_DEVADR,
> + MV88E61XX_PHY_CMD,
> + (0x9410 | (prt << 5)));
> +
> + if (mv88361xx_busychk(name))
> + return -1;
> +
> + /* Write PHY ctrl reg (0x0) to apply
> + * Phy reset (BIT15=low)
> + * reset other default values
> + */
> + mv88e61xx_wr_phy(name, MV88E61XX_GLB2REG_DEVADR,
> + MV88E61XX_PHY_DATA, 0x1140);
> + mv88e61xx_wr_phy(name, MV88E61XX_GLB2REG_DEVADR,
> + MV88E61XX_PHY_CMD,
> + (0x9400 | (prt << 5)));
> +
> + if (mv88361xx_busychk(name))
> + return -1;
> + }
> +
> + /*Program port state */
> + mv88e61xx_rd_phy(name, MV88E61XX_PRT_OFST + prt,
> + MV88E61XX_PRT_CTRL_REG, ®);
> + mv88e61xx_wr_phy(name, MV88E61XX_PRT_OFST + prt,
> + MV88E61XX_PRT_CTRL_REG,
> + reg | (swconfig->portstate & 0x03));
> + }
> +
> + printf("%s Initialized on %s\n", idstr, name);
> + return 0;
> +}
> diff --git a/drivers/net/phy/mv88e61xx.h b/drivers/net/phy/mv88e61xx.h
> new file mode 100644
> index 0000000..400a4ad
> --- /dev/null
> +++ b/drivers/net/phy/mv88e61xx.h
> @@ -0,0 +1,73 @@
> +/*
> + * (C) Copyright 2009
> + * Marvell Semiconductor <www.marvell.com>
> + * Prafulla Wadaskar <prafulla at 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
> + */
> +
> +#ifndef _MV88E61XX_H
> +#define _MV88E61XX_H
> +
> +#define PORT(_x) (1 << _x)
> +#define MV88E61XX_CPU_PORT 0x5
> +#define MV88E61XX_MAX_PORTS_NUM 0x6
> +
> +#define MV88E61XX_PHY_TIMEOUT 100000
> +
> +#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_RGMII_TIMECTRL_REG 0x1A
> +#define MV88E61XX_GLB2REG_DEVADR 0x1C
> +
> +/* constants for switch configuration */
> +enum mv88f61xx_cfg_vlan {
> + MV88E61XX_VLANCFG_DEFAULT,
> + MV88E61XX_VLANCFG_ROUTER
> +};
> +
> +enum mv88f61xx_cfg_rgmiid {
> + MV88E61XX_RGMII_DELAY_DIS,
> + MV88E61XX_RGMII_DELAY_EN
> +};
> +
> +enum mv88f61xx_cfg_prtstt {
> + MV88E61XX_PORTSTT_DISABLED,
> + MV88E61XX_PORTSTT_BLOCKING,
> + MV88E61XX_PORTSTT_LEARNING,
> + MV88E61XX_PORTSTT_FORWARDING
> +};
> +
> +/* switch configuration structure */
> +struct mv88f61xx_config {
> + char *name;
> + enum mv88f61xx_cfg_vlan vlancfg;
> + enum mv88f61xx_cfg_rgmiid rgmii_delay;
> + enum mv88f61xx_cfg_prtstt portstate;
> + u32 ports_enabled;
> + u8 cpuport;
> +};
> +
> +#endif /* _MV88E61XX_H */
> --
> 1.5.3.4
Thanks for all the hard work. Address these issues and I'll pull it
into the net branch.
regards,
Ben
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