diff options
Diffstat (limited to 'board/freescale/t102xqds/t102xqds.c')
| -rw-r--r-- | board/freescale/t102xqds/t102xqds.c | 95 |
1 files changed, 93 insertions, 2 deletions
diff --git a/board/freescale/t102xqds/t102xqds.c b/board/freescale/t102xqds/t102xqds.c index e42337e47a..32b4780376 100644 --- a/board/freescale/t102xqds/t102xqds.c +++ b/board/freescale/t102xqds/t102xqds.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2014 Freescale Semiconductor, Inc. + * Copyright 2020 NXP */ #include <common.h> @@ -75,11 +76,24 @@ int checkboard(void) return 0; } -int select_i2c_ch_pca9547(u8 ch) +int select_i2c_ch_pca9547(u8 ch, int bus_num) { int ret; +#ifdef CONFIG_DM_I2C + struct udevice *dev; + ret = i2c_get_chip_for_busnum(bus_num, I2C_MUX_PCA_ADDR_PRI, + 1, &dev); + if (ret) { + printf("%s: Cannot find udev for a bus %d\n", __func__, + bus_num); + return ret; + } + + ret = dm_i2c_write(dev, 0, &ch, 1); +#else ret = i2c_write(I2C_MUX_PCA_ADDR_PRI, 0, 1, &ch, 1); +#endif if (ret) { puts("PCA: failed to select proper channel\n"); return ret; @@ -191,6 +205,82 @@ void board_retimer_ds125df111_init(void) { u8 reg; +#ifdef CONFIG_DM_I2C + struct udevice *dev; + int ret, bus_num = 0; + + ret = i2c_get_chip_for_busnum(bus_num, I2C_MUX_PCA_ADDR_PRI, + 1, &dev); + if (ret) + goto failed; + + /* Retimer DS125DF111 is connected to I2C1_CH7_CH5 */ + reg = I2C_MUX_CH7; + dm_i2c_write(dev, 0, ®, 1); + + ret = i2c_get_chip_for_busnum(bus_num, I2C_MUX_PCA_ADDR_SEC, + 1, &dev); + if (ret) + goto failed; + + reg = I2C_MUX_CH5; + dm_i2c_write(dev, 0, ®, 1); + + /* Access to Control/Shared register */ + ret = i2c_get_chip_for_busnum(bus_num, I2C_RETIMER_ADDR, + 1, &dev); + if (ret) + goto failed; + reg = 0x0; + dm_i2c_write(dev, 0xff, ®, 1); + + /* Read device revision and ID */ + dm_i2c_read(dev, 1, ®, 1); + debug("Retimer version id = 0x%x\n", reg); + + /* Enable Broadcast */ + reg = 0x0c; + dm_i2c_write(dev, 0xff, ®, 1); + + /* Reset Channel Registers */ + dm_i2c_read(dev, 0, ®, 1); + reg |= 0x4; + dm_i2c_write(dev, 0, ®, 1); + + /* Enable override divider select and Enable Override Output Mux */ + dm_i2c_read(dev, 9, ®, 1); + reg |= 0x24; + dm_i2c_write(dev, 9, ®, 1); + + /* Select VCO Divider to full rate (000) */ + dm_i2c_read(dev, 0x18, ®, 1); + reg &= 0x8f; + dm_i2c_write(dev, 0x18, ®, 1); + + /* Select active PFD MUX input as re-timed data (001) */ + dm_i2c_read(dev, 0x1e, ®, 1); + reg &= 0x3f; + reg |= 0x20; + dm_i2c_write(dev, 0x1e, ®, 1); + + /* Set data rate as 10.3125 Gbps */ + reg = 0x0; + dm_i2c_write(dev, 0x60, ®, 1); + reg = 0xb2; + dm_i2c_write(dev, 0x61, ®, 1); + reg = 0x90; + dm_i2c_write(dev, 0x62, ®, 1); + reg = 0xb3; + dm_i2c_write(dev, 0x63, ®, 1); + reg = 0xcd; + dm_i2c_write(dev, 0x64, ®, 1); + return; + +failed: + printf("%s: Cannot find udev for a bus %d\n", __func__, + bus_num); + return; +#else /* Retimer DS125DF111 is connected to I2C1_CH7_CH5 */ reg = I2C_MUX_CH7; i2c_write(I2C_MUX_PCA_ADDR_PRI, 0, 1, ®, 1); @@ -241,6 +331,7 @@ void board_retimer_ds125df111_init(void) i2c_write(I2C_RETIMER_ADDR, 0x63, 1, ®, 1); reg = 0xcd; i2c_write(I2C_RETIMER_ADDR, 0x64, 1, ®, 1); +#endif } int board_early_init_f(void) @@ -281,7 +372,7 @@ int board_early_init_r(void) MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, 0, flash_esel, BOOKE_PAGESZ_256M, 1); #endif - select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT); + select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT, 0); board_mux_lane_to_slot(); board_retimer_ds125df111_init(); |