Commit Graph

2 Commits

Author SHA1 Message Date
Konstantin Porotchkin 1e179c7946 plat/marvell: fix SPD handling in dram port
The DRAM port code issues a dummy write to SPD page-0 i2c address
in order to select this page for the forthcoming read transaction.
If the write buffer length supplied to i2c_write is not zero, this
call is translated to 2 bus transations:

- set the target offset
- write the data to the target

However no actual data should be transferred to SPD page-0 in order
to select it. Actually, the second transation never receives an ACK
from the target device, which caused the following error report:

ERROR:   Status 30 in write transaction

This patch sets the buffer length in page-0 select writes to zero,
leading to bypass the data transfer to the target device.
Issuing the target offset command to SPD page-0 address effectively
selects this page for the read operation.

Change-Id: I4bf8e8c09da115ee875f934bc8fbc9349b995017
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Reviewed-on: https://sj1git1.cavium.com/24387
Tested-by: sa_ip-sw-jenkins <sa_ip-sw-jenkins@marvell.com>
Reviewed-by: Ofer Heifetz <oferh@marvell.com>
Reviewed-by: Moti Buskila <motib@marvell.com>
2021-02-11 09:43:18 +00:00
Grzegorz Jaszczyk 2c9d263682 plat: marvell: octeontx: add support for t9130
CN-9130 has single CP0 inside the package and 2 additional one from MoChi
interface. In case of db-9130-modular board the MCI interface is routed to:
- on-board CP115 (MCI0)
- extension board CP115 (MCI1)

The board is based on DIMM DDR.

The 9130 has up to 3CP, and decoding windows looks like below:

  (free for further use)
 .----------. 0xf800 0000
 | CP2 CFG  |
 '----------' 0xf600 0000
 | CP1 CFG  |
 '----------' 0xf400 0000
 | CP0 CFG  |
 '----------' 0xf200 0000
 | AP CFG   |
 '----------' 0xf000 0000
  (free for further use)
 .----------. 0xec00 0000
 | SPI      |
 | MEM_MAP  | (Currently not opened)
 '----------' 0xe800 0000
 | PEX2_CP2 |
 '----------' 0xe700 0000
 | PEX1_CP2 |
 '----------' 0xe600 0000
 | PEX0-CP2 |
 '----------'
 .----------. 0xe500 0000
 | PEX2_CP1 |
 '----------' 0xe400 0000
 | PEX1_CP1 |
 '----------' 0xe300 0000
 | PEX0-CP1 |
 '----------'
 .----------. 0xe200 0000
 | PEX2-CP0 |
 '----------' 0xe100 0000
 | PEX1-CP0 |
 '----------' 0xe000 0000
 | PEX0-CP0 |
 | 512MB    |
 '----------' 0xc000 0000

Change-Id: Ia8eee4f96c1043753f74f9da437b9f72ce2d6eb0
Signed-off-by: Grzegorz Jaszczyk <jaz@semihalf.com>
2020-07-30 15:15:52 +02:00