Re: [U-Boot] [PATCH 02/11] 85xx, 86xx: Sync up DMA code

On May 21, 2009, at 12:10 PM, Peter Tyser wrote:

The following changes were made to sync up the DMA code between the 85xx and 86xx architectures which will make it easier to break out common 8xxx DMA code:

85xx:

• Don't set STRANSINT and SPCIORDER fields in SATR register. These

bits only have an affect when the SBPATMU bit is set.

• Write 0xffffffff instead of 0xfffffff to clear errors in the DMA

status register. We may as well clear all 32 bits of the register...

86xx:

• Add CONFIG_SYS_MPC86xx_DMA_ADDR define to address DMA registers
• Add clearing of errors in the DMA status register when initializing

the controller

• Clear the channel start bit in the DMA mode register after a

transfer

Signed-off-by: Peter Tyser ptyser@xes-inc.com

cpu/mpc85xx/cpu.c | 8 ++++---- cpu/mpc86xx/cpu.c | 14 ++++++++------ include/asm-ppc/immap_86xx.h | 2 ++ 3 files changed, 14 insertions(+), 10 deletions(-)

applied to next

- k