diff options
Diffstat (limited to 'board/freescale')
| -rw-r--r-- | board/freescale/t102xqds/t102xqds.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/board/freescale/t102xqds/t102xqds.c b/board/freescale/t102xqds/t102xqds.c index 8e6a23b..f3141b5 100644 --- a/board/freescale/t102xqds/t102xqds.c +++ b/board/freescale/t102xqds/t102xqds.c @@ -186,6 +186,62 @@ static void board_mux_setup(void) } #endif +void board_retimer_ds125df111_init(void) +{ + u8 reg; + + /* Retimer DS125DF111 is connected to I2C1_CH7_CH5 */ + reg = I2C_MUX_CH7; + i2c_write(I2C_MUX_PCA_ADDR_PRI, 0, 1, ®, 1); + reg = I2C_MUX_CH5; + i2c_write(I2C_MUX_PCA_ADDR_SEC, 0, 1, ®, 1); + + /* Access to Control/Shared register */ + reg = 0x0; + i2c_write(I2C_RETIMER_ADDR, 0xff, 1, ®, 1); + + /* Read device revision and ID */ + i2c_read(I2C_RETIMER_ADDR, 1, 1, ®, 1); + debug("Retimer version id = 0x%x\n", reg); + + /* Enable Broadcast */ + reg = 0x0c; + i2c_write(I2C_RETIMER_ADDR, 0xff, 1, ®, 1); + + /* Reset Channel Registers */ + i2c_read(I2C_RETIMER_ADDR, 0, 1, ®, 1); + reg |= 0x4; + i2c_write(I2C_RETIMER_ADDR, 0, 1, ®, 1); + + /* Enable override divider select and Enable Override Output Mux */ + i2c_read(I2C_RETIMER_ADDR, 9, 1, ®, 1); + reg |= 0x24; + i2c_write(I2C_RETIMER_ADDR, 9, 1, ®, 1); + + /* Select VCO Divider to full rate (000) */ + i2c_read(I2C_RETIMER_ADDR, 0x18, 1, ®, 1); + reg &= 0x8f; + i2c_write(I2C_RETIMER_ADDR, 0x18, 1, ®, 1); + + /* Select active PFD MUX input as re-timed data (001) */ + i2c_read(I2C_RETIMER_ADDR, 0x1e, 1, ®, 1); + reg &= 0x3f; + reg |= 0x20; + i2c_write(I2C_RETIMER_ADDR, 0x1e, 1, ®, 1); + + /* Set data rate as 10.3125 Gbps */ + reg = 0x0; + i2c_write(I2C_RETIMER_ADDR, 0x60, 1, ®, 1); + reg = 0xb2; + i2c_write(I2C_RETIMER_ADDR, 0x61, 1, ®, 1); + reg = 0x90; + i2c_write(I2C_RETIMER_ADDR, 0x62, 1, ®, 1); + reg = 0xb3; + i2c_write(I2C_RETIMER_ADDR, 0x63, 1, ®, 1); + reg = 0xcd; + i2c_write(I2C_RETIMER_ADDR, 0x64, 1, ®, 1); +} + int board_early_init_r(void) { #ifdef CONFIG_SYS_FLASH_BASE @@ -220,6 +276,7 @@ int board_early_init_r(void) #endif select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT); board_mux_lane_to_slot(); + board_retimer_ds125df111_init(); /* Increase IO drive strength to address FCS error on RGMII */ out_be32((unsigned *)CONFIG_SYS_FSL_SCFG_IODSECR1_ADDR, 0xbfdb7800); |