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author | Wolfgang Denk <wd@denx.de> | 2011-10-04 20:08:13 (GMT) |
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committer | Wolfgang Denk <wd@denx.de> | 2011-10-04 20:08:13 (GMT) |
commit | 1fed668b3fb9c35932f58af00ff5539239fa4e1d (patch) | |
tree | eaaaead8ca19924af1823caae040f504be9b6d98 /drivers/net/fm/tgec_phy.c | |
parent | c52575350fd6e794717f6bee4f81dbb8038fe22e (diff) | |
parent | 6d7b061af153bc5beb633c3bd15348284716a067 (diff) | |
download | u-boot-1fed668b3fb9c35932f58af00ff5539239fa4e1d.tar.xz |
Merge branch 'master' of git://git.denx.de/u-boot-mpc85xx
* 'master' of git://git.denx.de/u-boot-mpc85xx:
powerpc/p3060: Add SoC related support for P3060 platform
powerpc/85xx: Add support for setting up RAID engine liodns on P5020
powerpc/85xx: Refactor some defines out of corenet_ds.h
fm-eth: Add ability for board code to disable a port
powerpc/mpc8548: Add workaround for erratum NMG_LBC103
powerpc/mpc8548: Add workaround for erratum NMG_DDR120
powerpc/mpc85xxcds: Fix PCI speed
powerpc/mpc8548cds: Fix booting message
powerpc/p4080: Add support for secure boot flow
powerpc/85xx: Add Secure Boot support on P1010RDB for NOR, NAND & SPIFLASH
powerpc/85xx: Add PBL & SECUREBOOT support on P3041/P5020DS boards
powerpc/p2041rdb: remove watch dog related codes
powerpc/p2041rdb: updated description of cpld command
powerpc/p2041rdb: add more ddr frequencies support
powerpc/p2041rdb: set sysclk according to status of physical switch SW1
powerpc/p2041rdb: update cpld reset command according to CPLD 2.0
powerpc/mpc8349emds: Migrate from spd_sdram to unified DDR driver
powerpc/mpc83xx: Migrate from spd_sdram to unified DDR driver
powerpc/mpc8xxx: Add DDR2 to unified DDR driver
powerpc/mpc8xxx: Fix picos_to_mclk() and get_memory_clk_period_ps()
powerpc/mpc8xxx: Add SPD EEPROM address for single controller 2 slots
powerpc/mpc8xxx: Fix DDR code for empty first DIMM slot and enable DQS_en
powerpc/85xx: Refactor P2041RDB to use common p_corenet files
powerpc/85xx: refactor common P-Series CoreNet files for FSL boards
powerpc/85xx: Enable CMD_REGINFO on corenet boards
powerpc/85xx: p2041rdb - Remove unused 'execute' perm in TLB entries
powerpc/85xx: Fix USB protocol definitions for P1020RDB
powerpc/corenet_ds: Use separated speed tables for UDIMM and RDIMM
powerpc/mpc8xxx: Move DDR RCW overriding to common code
powerpc/mpc8xxx: Extend CWL table
powerpc/85xx: Cleanup how SVR_MAJ() is defined on MPC8536
powerpc/85xx: Cleanup extern in corenet_ds board code
powerpc/p2041rdb: Add ethernet support on P2041RDB board
powerpc/85xx: Add networking support to P1023RDS
powerpc/hydra: Add ethernet support on P5020/P3041 DS boards
powerpc/85xx: Add FMan ethernet support to P4080DS
powerpc/85xx: Add support for FMan ethernet in Independent mode
powerpc/mpc8548cds: Cleanup mpc8548cds.c
powerpc/mp: add support for discontiguous cores
powerpc/85xx: corenet_ds - Remove unused 'execute' perm in TLB entries
fdt: Add new fdt_create_phandle helper
fdt: Rename fdt_create_phandle to fdt_set_phandle
powerpc/85xx: Fix compile warnings/errors if CONFIG_SYS_DPAA_FMAN isn't set
fsl_ifc: Add the workaround for erratum IFC A-003399(enabled on P1010)
powerpc/P1010: Add workaround for erratum P1010-A003549 (related to IFC)
fsl_ifc: Add the workaround for erratum IFC-A002769 (enable on P1010)
powerpc/85xx: Expanding the window of CCSRBAR in AS=1 from 4k to 1M
powerpc/85xx: Add NAND/NAND_SPL support to P1010RDB
nand: Freescale Integrated Flash Controller NAND support
powerpc/85xx: Add basic support for P1010RDB
powerpc/85xx: Add support for new P102x/P2020 RDB style boards
powerpc/85xx: relocate CCSR before creating the initial RAM area
powerpc/85xx: introduce and document CONFIG_SYS_CCSRBAR macros
powerpc/85xx: Enable internal USB UTMI PHY on p204x/p3041/p50x0
powerpc/85xx: Add ULPI and UTMI USB Phy support for P1010/P1014
Diffstat (limited to 'drivers/net/fm/tgec_phy.c')
-rw-r--r-- | drivers/net/fm/tgec_phy.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/drivers/net/fm/tgec_phy.c b/drivers/net/fm/tgec_phy.c new file mode 100644 index 0000000..2d349ad --- /dev/null +++ b/drivers/net/fm/tgec_phy.c @@ -0,0 +1,139 @@ +/* + * Copyright 2009-2011 Freescale Semiconductor, Inc. + * Andy Fleming <afleming@freescale.com> + * + * 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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * Some part is taken from tsec.c + */ +#include <common.h> +#include <miiphy.h> +#include <phy.h> +#include <asm/io.h> +#include <asm/fsl_tgec.h> +#include <fm_eth.h> + +/* + * Write value to the PHY for this device to the register at regnum, waiting + * until the write is done before it returns. All PHY configuration has to be + * done through the TSEC1 MIIM regs + */ +int tgec_mdio_write(struct mii_dev *bus, int port_addr, int dev_addr, + int regnum, u16 value) +{ + u32 mdio_ctl; + u32 stat_val; + struct tgec_mdio_controller *regs = bus->priv; + + if (dev_addr == MDIO_DEVAD_NONE) + return 0; + + /* Wait till the bus is free */ + stat_val = MDIO_STAT_CLKDIV(100); + out_be32(®s->mdio_stat, stat_val); + while ((in_be32(®s->mdio_stat)) & MDIO_STAT_BSY) + ; + + /* Set the port and dev addr */ + mdio_ctl = MDIO_CTL_PORT_ADDR(port_addr) | MDIO_CTL_DEV_ADDR(dev_addr); + out_be32(®s->mdio_ctl, mdio_ctl); + + /* Set the register address */ + out_be32(®s->mdio_addr, regnum & 0xffff); + + /* Wait till the bus is free */ + while ((in_be32(®s->mdio_stat)) & MDIO_STAT_BSY) + ; + + /* Write the value to the register */ + out_be32(®s->mdio_data, MDIO_DATA(value)); + + /* Wait till the MDIO write is complete */ + while ((in_be32(®s->mdio_data)) & MDIO_DATA_BSY) + ; + + return 0; +} + +/* + * Reads from register regnum in the PHY for device dev, returning the value. + * Clears miimcom first. All PHY configuration has to be done through the + * TSEC1 MIIM regs + */ +int tgec_mdio_read(struct mii_dev *bus, int port_addr, int dev_addr, + int regnum) +{ + u32 mdio_ctl; + u32 stat_val; + struct tgec_mdio_controller *regs = bus->priv; + + if (dev_addr == MDIO_DEVAD_NONE) + return 0xffff; + + stat_val = MDIO_STAT_CLKDIV(100); + out_be32(®s->mdio_stat, stat_val); + /* Wait till the bus is free */ + while ((in_be32(®s->mdio_stat)) & MDIO_STAT_BSY) + ; + + /* Set the Port and Device Addrs */ + mdio_ctl = MDIO_CTL_PORT_ADDR(port_addr) | MDIO_CTL_DEV_ADDR(dev_addr); + out_be32(®s->mdio_ctl, mdio_ctl); + + /* Set the register address */ + out_be32(®s->mdio_addr, regnum & 0xffff); + + /* Wait till the bus is free */ + while ((in_be32(®s->mdio_stat)) & MDIO_STAT_BSY) + ; + + /* Initiate the read */ + mdio_ctl |= MDIO_CTL_READ; + out_be32(®s->mdio_ctl, mdio_ctl); + + /* Wait till the MDIO write is complete */ + while ((in_be32(®s->mdio_data)) & MDIO_DATA_BSY) + ; + + /* Return all Fs if nothing was there */ + if (in_be32(®s->mdio_stat) & MDIO_STAT_RD_ER) + return 0xffff; + + return in_be32(®s->mdio_data) & 0xffff; +} + +int tgec_mdio_reset(struct mii_dev *bus) +{ + return 0; +} + +int fm_tgec_mdio_init(bd_t *bis, struct tgec_mdio_info *info) +{ + struct mii_dev *bus = mdio_alloc(); + + if (!bus) { + printf("Failed to allocate FM TGEC MDIO bus\n"); + return -1; + } + + bus->read = tgec_mdio_read; + bus->write = tgec_mdio_write; + bus->reset = tgec_mdio_reset; + sprintf(bus->name, info->name); + + bus->priv = info->regs; + + return mdio_register(bus); +} |