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authorShengzhou Liu <Shengzhou.Liu@freescale.com>2014-11-24 17:18:28 +0800
committerYork Sun <yorksun@freescale.com>2014-12-05 08:06:16 -0800
commit10227aaa24847af4cd40354b90b8b73bfb1e3f2f (patch)
treec98572454ee8e60f99d8a997451afdd0792fb175 /board/freescale/t102xqds
parent5818643bf4788062594cc0b1b188400f2d5fb211 (diff)
board/t1024qds: add retimer support on t1024qds
Initialize retimer for XFI on t1024qds. Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'board/freescale/t102xqds')
-rw-r--r--board/freescale/t102xqds/t102xqds.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/board/freescale/t102xqds/t102xqds.c b/board/freescale/t102xqds/t102xqds.c
index 8e6a23b0e2..f3141b58e8 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, &reg, 1);
+ reg = I2C_MUX_CH5;
+ i2c_write(I2C_MUX_PCA_ADDR_SEC, 0, 1, &reg, 1);
+
+ /* Access to Control/Shared register */
+ reg = 0x0;
+ i2c_write(I2C_RETIMER_ADDR, 0xff, 1, &reg, 1);
+
+ /* Read device revision and ID */
+ i2c_read(I2C_RETIMER_ADDR, 1, 1, &reg, 1);
+ debug("Retimer version id = 0x%x\n", reg);
+
+ /* Enable Broadcast */
+ reg = 0x0c;
+ i2c_write(I2C_RETIMER_ADDR, 0xff, 1, &reg, 1);
+
+ /* Reset Channel Registers */
+ i2c_read(I2C_RETIMER_ADDR, 0, 1, &reg, 1);
+ reg |= 0x4;
+ i2c_write(I2C_RETIMER_ADDR, 0, 1, &reg, 1);
+
+ /* Enable override divider select and Enable Override Output Mux */
+ i2c_read(I2C_RETIMER_ADDR, 9, 1, &reg, 1);
+ reg |= 0x24;
+ i2c_write(I2C_RETIMER_ADDR, 9, 1, &reg, 1);
+
+ /* Select VCO Divider to full rate (000) */
+ i2c_read(I2C_RETIMER_ADDR, 0x18, 1, &reg, 1);
+ reg &= 0x8f;
+ i2c_write(I2C_RETIMER_ADDR, 0x18, 1, &reg, 1);
+
+ /* Select active PFD MUX input as re-timed data (001) */
+ i2c_read(I2C_RETIMER_ADDR, 0x1e, 1, &reg, 1);
+ reg &= 0x3f;
+ reg |= 0x20;
+ i2c_write(I2C_RETIMER_ADDR, 0x1e, 1, &reg, 1);
+
+ /* Set data rate as 10.3125 Gbps */
+ reg = 0x0;
+ i2c_write(I2C_RETIMER_ADDR, 0x60, 1, &reg, 1);
+ reg = 0xb2;
+ i2c_write(I2C_RETIMER_ADDR, 0x61, 1, &reg, 1);
+ reg = 0x90;
+ i2c_write(I2C_RETIMER_ADDR, 0x62, 1, &reg, 1);
+ reg = 0xb3;
+ i2c_write(I2C_RETIMER_ADDR, 0x63, 1, &reg, 1);
+ reg = 0xcd;
+ i2c_write(I2C_RETIMER_ADDR, 0x64, 1, &reg, 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);