[U-Boot] [PATCH] imx:mx6sxsabresd fix pfuz probe failed

[Fabio Estevam]

On Fri, Oct 31, 2014 at 1:08 AM, Peng Fan <Peng.Fan at freescale.com> wrote:
> The PFUZ probe failed with the following msg:
> " wait_for_sr_state: failed sr=81 cr=a0 state=2020
>   i2c_init_transfer: failed for chip 0x8 retry=0
>   wait_for_sr_state: failed sr=81 cr=a0 state=2020
>   i2c_init_transfer: failed for chip 0x8 retry=1
>   wait_for_sr_state: failed sr=81 cr=a0 state=2020
>   i2c_init_transfer: failed for chip 0x8 retry=2
>   i2c_init_transfer: give up i2c_regs=021a0000
>   Can't find PMIC:PFUZE100 "
>
> board_early_init_f is too early to call i2c related setting, because
> init_func_i2c is called after board_early_init_f being invoked. Thus
> move setup_i2c into board_init.
>
> Also PFUZ is connected to I2C bus 0, so change "1" -> "0".
>
> Using this patch PFUZ can be correctly probed:
> "PMIC:  PFUZE100 ID=0x11"
>
> Signed-off-by: Peng Fan <Peng.Fan at freescale.com>

Maybe this is a difference between RevA versus RevB board?

I have a RevA and PMIC works fine here:

U-Boot 2014.10-rc2-17115-g718b923 (Sep 30 2014 - 14:03:24)

CPU:   Freescale i.MX6SX rev1.0 at 792 MHz
Reset cause: WDOG
Board: MX6SX SABRE SDB
I2C:   ready
DRAM:  1 GiB
MMC:   FSL_SDHC: 0
In:    serial
Out:   serial
Err:   serial
PMIC:  PFUZE100 ID=0x10
Net:   FEC [PRIME]
Hit any key to stop autoboot:  0
=>

=> pmic PFUZE100 dump
PMIC: PFUZE100

0x00: 00000010 00000000 00000000 00000021 00000000 00000001 0000003f 00000001
0x08: 00000000 0000007f 00000000 00000000 00000000 00000000 00000000 00000081
0x10: 00000000 00000000 0000003f 00000000 00000000 00000000 00000000 00000000
0x18: 00000000 00000000 00000000 00000010 00000000 00000000 00000000 00000000
0x20: 0000002b 0000001b 0000002b 00000008 00000044 00000000 00000000 00000000
0x28: 00000000 00000000 00000000 00000000 00000000 00000000 0000002b 0000001b
0x30: 0000002b 00000008 00000044 00000000 00000000 00000072 00000072 00000072
0x38: 00000008 00000054 00000000 00000000 00000026 00000026 00000026 00000008
0x40: 00000064 00000000 00000000 00000026 00000026 00000026 00000008 00000064
0x48: 00000000 00000000 00000038 00000038 00000038 00000008 00000074 00000000
0x50: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0x58: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0x60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0x68: 00000000 00000000 00000010 00000006 00000018 0000000e 0000001a 00000010
0x70: 0000001f 0000001c 00000000 00000000 00000000 00000000 00000000 00000000
0x78: 00000000 00000000 00000000 00000000 00000000 00000000 00000000
=>