diff options
author | Andy Fleming <afleming@gmail.com> | 2015-11-04 15:48:32 -0600 |
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committer | York Sun <yorksun@freescale.com> | 2015-11-04 15:19:34 -0800 |
commit | 87e29878caba758ed3e09e9912ac8eb6dfc55f39 (patch) | |
tree | d98b04c33498eb2bb30dac21961d1bb32637823c /board/varisys/cyrus/eth.c | |
parent | c79e1c1ce9e5c1ddf6fac631e4741999f8a0cc58 (diff) | |
download | u-boot-imx-87e29878caba758ed3e09e9912ac8eb6dfc55f39.zip u-boot-imx-87e29878caba758ed3e09e9912ac8eb6dfc55f39.tar.gz u-boot-imx-87e29878caba758ed3e09e9912ac8eb6dfc55f39.tar.bz2 |
mpc85xx: Add support for the Varisys Cyrus board
This board runs a P5020 or P5040 chip, and utilizes
an EEPROM with similar formatting to the Freescale P5020DS.
Large amounts of this code were developed by
Adrian Cox <adrian at humboldt dot co dot uk>
Signed-off-by: Andy Fleming <afleming@gmail.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'board/varisys/cyrus/eth.c')
-rw-r--r-- | board/varisys/cyrus/eth.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/board/varisys/cyrus/eth.c b/board/varisys/cyrus/eth.c new file mode 100644 index 0000000..bcadc67 --- /dev/null +++ b/board/varisys/cyrus/eth.c @@ -0,0 +1,100 @@ +/* + * Author Adrian Cox + * Based somewhat on board/freescale/corenet_ds/eth_hydra.c + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <netdev.h> +#include <asm/fsl_serdes.h> +#include <fm_eth.h> +#include <fsl_mdio.h> +#include <malloc.h> +#include <fdt_support.h> +#include <fsl_dtsec.h> + +#ifdef CONFIG_FMAN_ENET + +#define FIRST_PORT_ADDR 3 +#define SECOND_PORT_ADDR 7 + +#ifdef CONFIG_PPC_P5040 +#define FIRST_PORT FM1_DTSEC5 +#define SECOND_PORT FM2_DTSEC5 +#else +#define FIRST_PORT FM1_DTSEC4 +#define SECOND_PORT FM1_DTSEC5 +#endif + +#define IS_VALID_PORT(p) ((p) == FIRST_PORT || (p) == SECOND_PORT) + +static void cyrus_phy_tuning(int phy) +{ + /* + * Enable RGMII delay on Tx and Rx for CPU port + */ + printf("Tuning PHY @ %d\n", phy); + + /* sets address 0x104 or reg 260 for writing */ + miiphy_write(DEFAULT_FM_MDIO_NAME, phy, 0xb, 0x8104); + /* Sets RXC/TXC to +0.96ns and TX_CTL/RX_CTL to -0.84ns */ + miiphy_write(DEFAULT_FM_MDIO_NAME, phy, 0xc, 0xf0f0); + /* sets address 0x105 or reg 261 for writing */ + miiphy_write(DEFAULT_FM_MDIO_NAME, phy, 0xb, 0x8105); + /* writes to address 0x105 , RXD[3..0] to -0. */ + miiphy_write(DEFAULT_FM_MDIO_NAME, phy, 0xc, 0x0000); + /* sets address 0x106 or reg 261 for writing */ + miiphy_write(DEFAULT_FM_MDIO_NAME, phy, 0xb, 0x8106); + /* writes to address 0x106 , TXD[3..0] to -0.84ns */ + miiphy_write(DEFAULT_FM_MDIO_NAME, phy, 0xc, 0x0000); + /* force re-negotiation */ + miiphy_write(DEFAULT_FM_MDIO_NAME, phy, 0x0, 0x1340); +} +#endif + +int board_eth_init(bd_t *bis) +{ +#ifdef CONFIG_FMAN_ENET + struct fsl_pq_mdio_info dtsec_mdio_info; + unsigned int i; + + printf("Initializing Fman\n"); + + + /* Register the real 1G MDIO bus */ + dtsec_mdio_info.regs = + (struct tsec_mii_mng *)CONFIG_SYS_FM1_DTSEC1_MDIO_ADDR; + dtsec_mdio_info.name = DEFAULT_FM_MDIO_NAME; + + fsl_pq_mdio_init(bis, &dtsec_mdio_info); + + + fm_info_set_phy_address(FIRST_PORT, FIRST_PORT_ADDR); + fm_info_set_mdio(FIRST_PORT, + miiphy_get_dev_by_name(DEFAULT_FM_MDIO_NAME)); + fm_info_set_phy_address(SECOND_PORT, SECOND_PORT_ADDR); + fm_info_set_mdio(SECOND_PORT, + miiphy_get_dev_by_name(DEFAULT_FM_MDIO_NAME)); + + /* Never disable DTSEC1 - it controls MDIO */ + for (i = FM1_DTSEC2; i < FM1_DTSEC1 + CONFIG_SYS_NUM_FM1_DTSEC; i++) { + if (!IS_VALID_PORT(i)) + fm_disable_port(i); + } + +#ifdef CONFIG_PPC_P5040 + for (i = FM2_DTSEC2; i < FM2_DTSEC1 + CONFIG_SYS_NUM_FM2_DTSEC; i++) { + if (!IS_VALID_PORT(i)) + fm_disable_port(i); + } +#endif + + cpu_eth_init(bis); + + cyrus_phy_tuning(FIRST_PORT_ADDR); + cyrus_phy_tuning(SECOND_PORT_ADDR); +#endif + + return pci_eth_init(bis); +} |