[U-Boot] [PATCH v6 04/11] dm: i2c: Add a sandbox I2C driver

[Masahiro YAMADA]

Hi Simon,



2014-12-11 0:55 GMT+09:00 Simon Glass <sjg at chromium.org>:
> This driver includes some test features such as only supporting certain
> bus speeds. It passes its I2C traffic through to an emulator.
>
> Acked-by: Heiko Schocher <hs at denx.de>
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
>
> Changes in v6:
> - Drop a stale comment
> - Pass value from i2c_get_chip() to get_emul()
> - Use dm_scan_fdt_node() to find emulator



When I run "i2c probe" on a real hardware,
generic-i2c is only added to slave-addresses that have responded.

On sandbox, only 0x2c and 0x59 respond, but generic-i2c is added
to all the slave-addresses.
It looks funny.

Is this a bug?





U-Boot 2015.01-rc3-00010-ge6aa27d-dirty (Dec 11 2014 - 01:53:11)

DRAM:  128 MiB
Using default environment

In:    cros-ec-keyb
Out:   lcd
Err:   lcd
=> i2c dev 0
Setting bus to 0
=> i2c probe
Valid chip addresses: 2C 59
=> dm tree
ROOT 05c60098
- * root_driver @ 05c60098
|-   demo_shape_drv @ 05c60178
|-   demo_simple_drv @ 05c60218
|-   demo_shape_drv @ 05c602b8
|-   demo_simple_drv @ 05c60358
|-   demo_shape_drv @ 05c603f8
|-   test_drv @ 05c604f8
|-   test_drv @ 05c60598
|-   test_drv @ 05c60638
|-   gpio_sandbox @ 05c60718
|-   serial_sandbox @ 05c607f8
|- * serial @ 05c60898
|-   triangle @ 05c60938
|-   square @ 05c609d8
|-   hexagon @ 05c60a78
|-   gpios @ 05c60b18
|- * i2c at 0 @ 05c60bf8, 0
||- * eeprom at 2c @ 05c60cd8, 44
||`- * emul @ 05c654b8
||- * generic_0 @ 05c62df8
||- * generic_1 @ 05c62ed8
||- * generic_2 @ 05c62fb8
||- * generic_3 @ 05c63098
||- * generic_4 @ 05c63178
||- * generic_5 @ 05c63258
||- * generic_6 @ 05c63338
||- * generic_7 @ 05c63418
||- * generic_8 @ 05c634f8
||- * generic_9 @ 05c635d8
||- * generic_a @ 05c636b8
||- * generic_b @ 05c63798
||- * generic_c @ 05c63878
||- * generic_d @ 05c63958
||- * generic_e @ 05c63a38
||- * generic_f @ 05c63b18
||- * generic_10 @ 05c63bf8
||- * generic_11 @ 05c63cd8
||- * generic_12 @ 05c63db8
||- * generic_13 @ 05c63e98
||- * generic_14 @ 05c63f78
||- * generic_15 @ 05c64058
||- * generic_16 @ 05c64138
||- * generic_17 @ 05c64218
||- * generic_18 @ 05c642f8
||- * generic_19 @ 05c643d8
||- * generic_1a @ 05c644b8
||- * generic_1b @ 05c64598
||- * generic_1c @ 05c64678
||- * generic_1d @ 05c64758
||- * generic_1e @ 05c64838
||- * generic_1f @ 05c64918
||- * generic_20 @ 05c649f8
||- * generic_21 @ 05c64ad8
||- * generic_22 @ 05c64bb8
||- * generic_23 @ 05c64c98
||- * generic_24 @ 05c64d78
||- * generic_25 @ 05c64e58
||- * generic_26 @ 05c64f38
||- * generic_27 @ 05c65018
||- * generic_28 @ 05c650f8
||- * generic_29 @ 05c651d8
||- * generic_2a @ 05c652b8
||- * generic_2b @ 05c65398
||- * generic_2d @ 05c65648
||- * generic_2e @ 05c65728
||- * generic_2f @ 05c65808
||- * generic_30 @ 05c658e8
||- * generic_31 @ 05c659c8
||- * generic_32 @ 05c65aa8
||- * generic_33 @ 05c65b88
||- * generic_34 @ 05c65c68
||- * generic_35 @ 05c65d48
||- * generic_36 @ 05c65e28
||- * generic_37 @ 05c65f08
||- * generic_38 @ 05c65fe8
||- * generic_39 @ 05c660c8
||- * generic_3a @ 05c661a8
||- * generic_3b @ 05c66288
||- * generic_3c @ 05c66368
||- * generic_3d @ 05c66448
||- * generic_3e @ 05c66528
||- * generic_3f @ 05c66608
||- * generic_40 @ 05c666e8
||- * generic_41 @ 05c667c8
||- * generic_42 @ 05c668a8
||- * generic_43 @ 05c66988
||- * generic_44 @ 05c66a68
||- * generic_45 @ 05c66b48
||- * generic_46 @ 05c66c28
||- * generic_47 @ 05c66d08
||- * generic_48 @ 05c66de8
||- * generic_49 @ 05c66ec8
||- * generic_4a @ 05c66fa8
||- * generic_4b @ 05c67088
||- * generic_4c @ 05c67168
||- * generic_4d @ 05c67248
||- * generic_4e @ 05c67328
||- * generic_4f @ 05c67408
||- * generic_50 @ 05c674e8
||- * generic_51 @ 05c675c8
||- * generic_52 @ 05c676a8
||- * generic_53 @ 05c67788
||- * generic_54 @ 05c67868
||- * generic_55 @ 05c67948
||- * generic_56 @ 05c67a28
||- * generic_57 @ 05c67b08
||- * generic_58 @ 05c67be8
||- * generic_59 @ 05c67cc8
||- * generic_5a @ 05c67da8
||- * generic_5b @ 05c67e88
||- * generic_5c @ 05c67f68
||- * generic_5d @ 05c68048
||- * generic_5e @ 05c68128
||- * generic_5f @ 05c68208
||- * generic_60 @ 05c682e8
||- * generic_61 @ 05c683c8
||- * generic_62 @ 05c684a8
||- * generic_63 @ 05c68588
||- * generic_64 @ 05c68668
||- * generic_65 @ 05c68748
||- * generic_66 @ 05c68828
||- * generic_67 @ 05c68908
||- * generic_68 @ 05c689e8
||- * generic_69 @ 05c68ac8
||- * generic_6a @ 05c68ba8
||- * generic_6b @ 05c68c88
||- * generic_6c @ 05c68d68
||- * generic_6d @ 05c68e48
||- * generic_6e @ 05c68f28
||- * generic_6f @ 05c69008
||- * generic_70 @ 05c690e8
||- * generic_71 @ 05c691c8
||- * generic_72 @ 05c692a8
||- * generic_73 @ 05c69388
||- * generic_74 @ 05c69468
||- * generic_75 @ 05c69548
||- * generic_76 @ 05c69628
||- * generic_77 @ 05c69708
||- * generic_78 @ 05c697e8
||- * generic_79 @ 05c698c8
||- * generic_7a @ 05c699a8
||- * generic_7b @ 05c69a88
||- * generic_7c @ 05c69b68
||- * generic_7d @ 05c69c48
||- * generic_7e @ 05c69d28
|`- * generic_7f @ 05c69e08
|-   spi at 0 @ 05c60db8, 0
|`-   flash at 0 @ 05c60e98, 0
`- * cros-ec at 0 @ 05c60f78






-- 
Best Regards
Masahiro Yamada