# \[PATCH\#2 4/4\] \[POWERPC\] Fix cpm\_uart driver - From: Jochen Friedrich \ - Date: 2007-09-24 17:17:25 - List: linuxppc-dev - Page: https://ratatoskr.run/linuxppc-dev/2007/09/1007456 - Thread: https://ratatoskr.run/lkml/2007/09/1007456/t.md ```text in cpm_uart_cpm1.h, DPRAM_BASE is assigned an address derived from cpmp. On ARC=ppc, this is a physical address with 1:1 DMA mapping which can't be used for arithmetric compare operations with virtual addresses returned by cpm_dpram_addr. This patch changes the assignment to use cpm_dpram_addr as well, like in cpm_uart_cpm2.h. Signed-off-by: Jochen Friedrich --- drivers/serial/cpm_uart/cpm_uart_cpm1.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) ``` ## Attachments - [e99364db4224fcfaf74389d1b59ec0637d899c17.diff](https://ratatoskr.run/linuxppc-dev/2007/09/1007456/attachment/0) (text/x-patch, 452 bytes)