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author | Andy Fleming <afleming@freescale.com> | 2010-10-20 15:35:16 -0500 |
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committer | Kumar Gala <galak@kernel.crashing.org> | 2011-09-29 19:01:05 -0500 |
commit | 2915609a91bac614d1fe881f928359028cd47e0f (patch) | |
tree | 59c929093d6371b3eee778c4faa933705943720b /board/freescale/corenet_ds/eth_p4080.c | |
parent | c916d7c914665347f057bf1506c02c5ac57e3184 (diff) | |
download | u-boot-imx-2915609a91bac614d1fe881f928359028cd47e0f.zip u-boot-imx-2915609a91bac614d1fe881f928359028cd47e0f.tar.gz u-boot-imx-2915609a91bac614d1fe881f928359028cd47e0f.tar.bz2 |
powerpc/85xx: Add FMan ethernet support to P4080DS
Add support for RGMII, SGMII, and XAUI (10Gb) Ethernet on P4080DS.
The board supports add-on cards for SGMII and XAUI functionality. Which
slots on the board these cards are in is a function of the SERDES option
selected and muxes on the board.
Additionally because of the high-configurablity which MDIO bus one is
connected to is "selected" via an FPGA register. We create dummy MDIO
bus for the phy layer and hide the mux manipulation in this dummy layer.
Add fman fdt helper function in board common code it'll be used by several
freescale boards that do various muxing of the MDIO signals based on which
controller/interface one is trying to talk to.
Removed CONFIG_SYS_FMAN_FW as its not used anywhere.
Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'board/freescale/corenet_ds/eth_p4080.c')
-rw-r--r-- | board/freescale/corenet_ds/eth_p4080.c | 506 |
1 files changed, 506 insertions, 0 deletions
diff --git a/board/freescale/corenet_ds/eth_p4080.c b/board/freescale/corenet_ds/eth_p4080.c new file mode 100644 index 0000000..d4657f7 --- /dev/null +++ b/board/freescale/corenet_ds/eth_p4080.c @@ -0,0 +1,506 @@ +/* + * Copyright 2009-2011 Freescale Semiconductor, Inc. + * + * 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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <command.h> +#include <netdev.h> +#include <asm/mmu.h> +#include <asm/processor.h> +#include <asm/cache.h> +#include <asm/immap_85xx.h> +#include <asm/fsl_law.h> +#include <asm/fsl_ddr_sdram.h> +#include <asm/fsl_serdes.h> +#include <asm/fsl_portals.h> +#include <asm/fsl_liodn.h> +#include <malloc.h> +#include <fm_eth.h> +#include <fsl_mdio.h> +#include <miiphy.h> +#include <phy.h> + +#include "../common/ngpixis.h" +#include "../common/fman.h" +#include <asm/fsl_dtsec.h> + +#define EMI_NONE 0xffffffff +#define EMI_MASK 0xf0000000 +#define EMI1_RGMII 0x0 +#define EMI1_SLOT3 0x80000000 /* bank1 EFGH */ +#define EMI1_SLOT4 0x40000000 /* bank2 ABCD */ +#define EMI1_SLOT5 0xc0000000 /* bank3 ABCD */ +#define EMI2_SLOT4 0x10000000 /* bank2 ABCD */ +#define EMI2_SLOT5 0x30000000 /* bank3 ABCD */ +#define EMI1_MASK 0xc0000000 +#define EMI2_MASK 0x30000000 + +static int mdio_mux[NUM_FM_PORTS]; + +static char *mdio_names[16] = { + "P4080DS_MDIO0", + "P4080DS_MDIO1", + NULL, + "P4080DS_MDIO3", + "P4080DS_MDIO4", + NULL, NULL, NULL, + "P4080DS_MDIO8", + NULL, NULL, NULL, + "P4080DS_MDIO12", + NULL, NULL, NULL, +}; + +static char *p4080ds_mdio_name_for_muxval(u32 muxval) +{ + return mdio_names[(muxval & EMI_MASK) >> 28]; +} + +struct mii_dev *mii_dev_for_muxval(u32 muxval) +{ + struct mii_dev *bus; + char *name = p4080ds_mdio_name_for_muxval(muxval); + + if (!name) { + printf("No bus for muxval %x\n", muxval); + return NULL; + } + + bus = miiphy_get_dev_by_name(name); + + if (!bus) { + printf("No bus by name %s\n", name); + return NULL; + } + + return bus; +} + +#ifdef CONFIG_SYS_P4080_ERRATUM_SERDES9 +int board_phy_config(struct phy_device *phydev) +{ + /* + * If this is the 10G PHY, and we switched it to fiber, + * we need to reset the serdes link for SERDES9 + */ + if ((phydev->port == PORT_FIBRE) && (phydev->drv->uid == 0x00a19410)) { + enum srds_prtcl device; + + switch (phydev->addr) { + case 4: + device = XAUI_FM1; + break; + case 0: + device = XAUI_FM2; + break; + default: + device = NONE; + } + + serdes_reset_rx(device); + } + + return 0; +} +#endif + +struct p4080ds_mdio { + u32 muxval; + struct mii_dev *realbus; +}; + +static void p4080ds_mux_mdio(u32 muxval) +{ + ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR); + uint gpioval = in_be32(&pgpio->gpdat) & ~(EMI_MASK); + gpioval |= muxval; + + out_be32(&pgpio->gpdat, gpioval); +} + +static int p4080ds_mdio_read(struct mii_dev *bus, int addr, int devad, + int regnum) +{ + struct p4080ds_mdio *priv = bus->priv; + + p4080ds_mux_mdio(priv->muxval); + + return priv->realbus->read(priv->realbus, addr, devad, regnum); +} + +static int p4080ds_mdio_write(struct mii_dev *bus, int addr, int devad, + int regnum, u16 value) +{ + struct p4080ds_mdio *priv = bus->priv; + + p4080ds_mux_mdio(priv->muxval); + + return priv->realbus->write(priv->realbus, addr, devad, regnum, value); +} + +static int p4080ds_mdio_reset(struct mii_dev *bus) +{ + struct p4080ds_mdio *priv = bus->priv; + + return priv->realbus->reset(priv->realbus); +} + +static int p4080ds_mdio_init(char *realbusname, u32 muxval) +{ + struct p4080ds_mdio *pmdio; + struct mii_dev *bus = mdio_alloc(); + + if (!bus) { + printf("Failed to allocate P4080DS MDIO bus\n"); + return -1; + } + + pmdio = malloc(sizeof(*pmdio)); + if (!pmdio) { + printf("Failed to allocate P4080DS private data\n"); + free(bus); + return -1; + } + + bus->read = p4080ds_mdio_read; + bus->write = p4080ds_mdio_write; + bus->reset = p4080ds_mdio_reset; + sprintf(bus->name, p4080ds_mdio_name_for_muxval(muxval)); + + pmdio->realbus = miiphy_get_dev_by_name(realbusname); + + if (!pmdio->realbus) { + printf("No bus with name %s\n", realbusname); + free(bus); + free(pmdio); + return -1; + } + + pmdio->muxval = muxval; + bus->priv = pmdio; + + return mdio_register(bus); +} + +/* + * Sets the specified node's status to the value contained in "status" + * If the first character of the specified path is "/" then we use + * alias as a path. Otherwise, we look for an alias of that name + */ +static void fdt_set_node_status(void *fdt, const char *alias, + const char *status) +{ + const char *path = fdt_get_alias(fdt, alias); + + if (!path) + path = alias; + + do_fixup_by_path(fdt, path, "status", status, strlen(status) + 1, 1); +} + +void board_ft_fman_fixup_port(void *blob, char * prop, phys_addr_t pa, + enum fm_port port, int offset) +{ + if (mdio_mux[port] == EMI1_RGMII) + fdt_set_phy_handle(blob, prop, pa, "phy_rgmii"); + + if (mdio_mux[port] == EMI1_SLOT3) { + int idx = port - FM2_DTSEC1 + 5; + char phy[16]; + + sprintf(phy, "phy%d_slot3", idx); + + fdt_set_phy_handle(blob, prop, pa, phy); + } +} + +void fdt_fixup_board_enet(void *fdt) +{ + int i; + + /* + * P4080DS can be configured in many different ways, supporting a number + * of combinations of ethernet devices and phy types. In order to + * have just one device tree for all of those configurations, we fix up + * the tree here. By default, the device tree configures FM1 and FM2 + * for SGMII, and configures XAUI on both 10G interfaces. So we have + * a number of different variables to track: + * + * 1) Whether the device is configured at all. Whichever devices are + * not enabled should be disabled by setting the "status" property + * to "disabled". + * 2) What the PHY interface is. If this is an RGMII connection, + * we should change the "phy-connection-type" property to + * "rgmii" + * 3) Which PHY is being used. Because the MDIO buses are muxed, + * we need to redirect the "phy-handle" property to point at the + * PHY on the right slot/bus. + */ + + /* We've got six MDIO nodes that may or may not need to exist */ + fdt_set_node_status(fdt, "emi1_slot3", "disabled"); + fdt_set_node_status(fdt, "emi1_slot4", "disabled"); + fdt_set_node_status(fdt, "emi1_slot5", "disabled"); + fdt_set_node_status(fdt, "emi2_slot4", "disabled"); + fdt_set_node_status(fdt, "emi2_slot5", "disabled"); + + for (i = 0; i < NUM_FM_PORTS; i++) { + switch (mdio_mux[i]) { + case EMI1_SLOT3: + fdt_set_node_status(fdt, "emi1_slot3", "okay"); + break; + case EMI1_SLOT4: + fdt_set_node_status(fdt, "emi1_slot4", "okay"); + break; + case EMI1_SLOT5: + fdt_set_node_status(fdt, "emi1_slot5", "okay"); + break; + case EMI2_SLOT4: + fdt_set_node_status(fdt, "emi2_slot4", "okay"); + break; + case EMI2_SLOT5: + fdt_set_node_status(fdt, "emi2_slot5", "okay"); + break; + } + } +} + +enum board_slots { + SLOT1 = 1, + SLOT2, + SLOT3, + SLOT4, + SLOT5, + SLOT6, +}; + +int board_eth_init(bd_t *bis) +{ +#ifdef CONFIG_FMAN_ENET + ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR); + struct dtsec *tsec = (void *)CONFIG_SYS_FSL_FM1_DTSEC1_ADDR; + int i; + struct fsl_pq_mdio_info dtsec_mdio_info; + struct tgec_mdio_info tgec_mdio_info; + + u8 lane_to_slot[] = { + SLOT1, /* 0 - Bank 1:A */ + SLOT1, /* 1 - Bank 1:B */ + SLOT2, /* 2 - Bank 1:C */ + SLOT2, /* 3 - Bank 1:D */ + SLOT3, /* 4 - Bank 1:E */ + SLOT3, /* 5 - Bank 1:F */ + SLOT3, /* 6 - Bank 1:G */ + SLOT3, /* 7 - Bank 1:H */ + SLOT6, /* 8 - Bank 1:I */ + SLOT6, /* 9 - Bank 1:J */ + SLOT4, /* 10 - Bank 2:A */ + SLOT4, /* 11 - Bank 2:B */ + SLOT4, /* 12 - Bank 2:C */ + SLOT4, /* 13 - Bank 2:D */ + SLOT5, /* 14 - Bank 3:A */ + SLOT5, /* 15 - Bank 3:B */ + SLOT5, /* 16 - Bank 3:C */ + SLOT5, /* 17 - Bank 3:D */ + }; + + /* + * Set TBIPA on FM1@DTSEC1. This is needed for configurations + * where FM1@DTSEC1 isn't used directly, since it provides + * MDIO for other ports. + */ + out_be32(&tsec->tbipa, CONFIG_SYS_TBIPA_VALUE); + + /* Initialize the mdio_mux array so we can recognize empty elements */ + for (i = 0; i < NUM_FM_PORTS; i++) + mdio_mux[i] = EMI_NONE; + + /* The first 4 GPIOs are outputs to control MDIO bus muxing */ + out_be32(&pgpio->gpdir, EMI_MASK); + + dtsec_mdio_info.regs = + (struct tsec_mii_mng *)CONFIG_SYS_FM1_DTSEC1_MDIO_ADDR; + dtsec_mdio_info.name = DEFAULT_FM_MDIO_NAME; + + /* Register the 1G MDIO bus */ + fsl_pq_mdio_init(bis, &dtsec_mdio_info); + + tgec_mdio_info.regs = + (struct tgec_mdio_controller *)CONFIG_SYS_FM1_TGEC_MDIO_ADDR; + tgec_mdio_info.name = DEFAULT_FM_TGEC_MDIO_NAME; + + /* Register the 10G MDIO bus */ + fm_tgec_mdio_init(bis, &tgec_mdio_info); + + /* Register the 6 muxing front-ends to the MDIO buses */ + p4080ds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_RGMII); + p4080ds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_SLOT3); + p4080ds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_SLOT4); + p4080ds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_SLOT5); + p4080ds_mdio_init(DEFAULT_FM_TGEC_MDIO_NAME, EMI2_SLOT4); + p4080ds_mdio_init(DEFAULT_FM_TGEC_MDIO_NAME, EMI2_SLOT5); + + fm_info_set_phy_address(FM1_DTSEC1, CONFIG_SYS_FM1_DTSEC1_PHY_ADDR); + fm_info_set_phy_address(FM1_DTSEC2, CONFIG_SYS_FM1_DTSEC2_PHY_ADDR); + fm_info_set_phy_address(FM1_DTSEC3, CONFIG_SYS_FM1_DTSEC3_PHY_ADDR); + fm_info_set_phy_address(FM1_DTSEC4, CONFIG_SYS_FM1_DTSEC4_PHY_ADDR); + fm_info_set_phy_address(FM1_10GEC1, CONFIG_SYS_FM1_10GEC1_PHY_ADDR); + +#if (CONFIG_SYS_NUM_FMAN == 2) + fm_info_set_phy_address(FM2_DTSEC1, CONFIG_SYS_FM2_DTSEC1_PHY_ADDR); + fm_info_set_phy_address(FM2_DTSEC2, CONFIG_SYS_FM2_DTSEC2_PHY_ADDR); + fm_info_set_phy_address(FM2_DTSEC3, CONFIG_SYS_FM2_DTSEC3_PHY_ADDR); + fm_info_set_phy_address(FM2_DTSEC4, CONFIG_SYS_FM2_DTSEC4_PHY_ADDR); + fm_info_set_phy_address(FM2_10GEC1, CONFIG_SYS_FM2_10GEC1_PHY_ADDR); +#endif + + for (i = FM1_DTSEC1; i < FM1_DTSEC1 + CONFIG_SYS_NUM_FM1_DTSEC; i++) { + int idx = i - FM1_DTSEC1, lane, slot; + switch (fm_info_get_enet_if(i)) { + case PHY_INTERFACE_MODE_SGMII: + lane = serdes_get_first_lane(SGMII_FM1_DTSEC1 + idx); + if (lane < 0) + break; + slot = lane_to_slot[lane]; + switch (slot) { + case SLOT3: + mdio_mux[i] = EMI1_SLOT3; + fm_info_set_mdio(i, + mii_dev_for_muxval(mdio_mux[i])); + break; + case SLOT4: + mdio_mux[i] = EMI1_SLOT4; + fm_info_set_mdio(i, + mii_dev_for_muxval(mdio_mux[i])); + break; + case SLOT5: + mdio_mux[i] = EMI1_SLOT5; + fm_info_set_mdio(i, + mii_dev_for_muxval(mdio_mux[i])); + break; + }; + break; + case PHY_INTERFACE_MODE_RGMII: + fm_info_set_phy_address(i, 0); + mdio_mux[i] = EMI1_RGMII; + fm_info_set_mdio(i, + mii_dev_for_muxval(mdio_mux[i])); + break; + default: + break; + } + } + + for (i = FM1_10GEC1; i < FM1_10GEC1 + CONFIG_SYS_NUM_FM1_10GEC; i++) { + int idx = i - FM1_10GEC1, lane, slot; + switch (fm_info_get_enet_if(i)) { + case PHY_INTERFACE_MODE_XGMII: + lane = serdes_get_first_lane(XAUI_FM1 + idx); + if (lane < 0) + break; + slot = lane_to_slot[lane]; + switch (slot) { + case SLOT4: + mdio_mux[i] = EMI2_SLOT4; + fm_info_set_mdio(i, + mii_dev_for_muxval(mdio_mux[i])); + break; + case SLOT5: + mdio_mux[i] = EMI2_SLOT5; + fm_info_set_mdio(i, + mii_dev_for_muxval(mdio_mux[i])); + break; + }; + break; + default: + break; + } + } + +#if (CONFIG_SYS_NUM_FMAN == 2) + for (i = FM2_DTSEC1; i < FM2_DTSEC1 + CONFIG_SYS_NUM_FM2_DTSEC; i++) { + int idx = i - FM2_DTSEC1, lane, slot; + switch (fm_info_get_enet_if(i)) { + case PHY_INTERFACE_MODE_SGMII: + lane = serdes_get_first_lane(SGMII_FM2_DTSEC1 + idx); + if (lane < 0) + break; + slot = lane_to_slot[lane]; + switch (slot) { + case SLOT3: + mdio_mux[i] = EMI1_SLOT3; + fm_info_set_mdio(i, + mii_dev_for_muxval(mdio_mux[i])); + break; + case SLOT4: + mdio_mux[i] = EMI1_SLOT4; + fm_info_set_mdio(i, + mii_dev_for_muxval(mdio_mux[i])); + break; + case SLOT5: + mdio_mux[i] = EMI1_SLOT5; + fm_info_set_mdio(i, + mii_dev_for_muxval(mdio_mux[i])); + break; + }; + break; + case PHY_INTERFACE_MODE_RGMII: + fm_info_set_phy_address(i, 0); + mdio_mux[i] = EMI1_RGMII; + fm_info_set_mdio(i, + mii_dev_for_muxval(mdio_mux[i])); + break; + default: + break; + } + } + + for (i = FM2_10GEC1; i < FM2_10GEC1 + CONFIG_SYS_NUM_FM2_10GEC; i++) { + int idx = i - FM2_10GEC1, lane, slot; + switch (fm_info_get_enet_if(i)) { + case PHY_INTERFACE_MODE_XGMII: + lane = serdes_get_first_lane(XAUI_FM2 + idx); + if (lane < 0) + break; + slot = lane_to_slot[lane]; + switch (slot) { + case SLOT4: + mdio_mux[i] = EMI2_SLOT4; + fm_info_set_mdio(i, + mii_dev_for_muxval(mdio_mux[i])); + break; + case SLOT5: + mdio_mux[i] = EMI2_SLOT5; + fm_info_set_mdio(i, + mii_dev_for_muxval(mdio_mux[i])); + break; + }; + break; + default: + break; + } + } +#endif + + cpu_eth_init(bis); +#endif /* CONFIG_FMAN_ENET */ + + return pci_eth_init(bis); +} |