Searched hist:"1 e179c7946134c839d83aeff8bdf5a94315fac6e" (Results 1 – 4 of 4) sorted by relevance
| /rk3399_ARM-atf/plat/marvell/armada/a8k/a80x0_puzzle/board/ |
| H A D | dram_port.c | 1e179c7946134c839d83aeff8bdf5a94315fac6e Tue Mar 03 16:29:50 UTC 2020 Konstantin Porotchkin <kostap@marvell.com> 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>
|
| /rk3399_ARM-atf/plat/marvell/armada/a8k/a80x0_mcbin/board/ |
| H A D | dram_port.c | 1e179c7946134c839d83aeff8bdf5a94315fac6e Tue Mar 03 16:29:50 UTC 2020 Konstantin Porotchkin <kostap@marvell.com> 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>
|
| /rk3399_ARM-atf/plat/marvell/armada/a8k/a80x0/board/ |
| H A D | dram_port.c | 1e179c7946134c839d83aeff8bdf5a94315fac6e Tue Mar 03 16:29:50 UTC 2020 Konstantin Porotchkin <kostap@marvell.com> 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>
|
| /rk3399_ARM-atf/plat/marvell/octeontx/otx2/t91/t9130/board/ |
| H A D | dram_port.c | 1e179c7946134c839d83aeff8bdf5a94315fac6e Tue Mar 03 16:29:50 UTC 2020 Konstantin Porotchkin <kostap@marvell.com> 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>
|