From 377ffcfabff39d2f812c28e54152cb53839ce338 Mon Sep 17 00:00:00 2001 From: Sandeep Singh Date: Thu, 5 Jun 2014 18:49:57 +0530 Subject: powerpc/mpc85xx: Add workaround to enable TDM on T1040 This is a workaround for 32 bit hardware limitation of TDM. T1040 has 36 bit physical addressing, TDM DMAC register are 32 bit wide but need to store address of CCSR space which lies beyond 32 bit address range. This workaround creats a LAW to enable access of TDM DMA to CCSR by mapping CCSR to overlap with DDR. A hole of 16M is created in memory using device tree. This workaround law is set only if "tdm" is defined in hwconfig. Also disable POST tests and add LIODN for TDM Signed-off-by: Sandeep Singh Reviewed-by: York Sun --- include/configs/T1040QDS.h | 6 ++++++ include/configs/T104xRDB.h | 6 ++++++ 2 files changed, 12 insertions(+) (limited to 'include') diff --git a/include/configs/T1040QDS.h b/include/configs/T1040QDS.h index 2215ac86ab..f2a75aed43 100644 --- a/include/configs/T1040QDS.h +++ b/include/configs/T1040QDS.h @@ -201,6 +201,12 @@ unsigned long get_board_ddr_clk(void); CSPR_MSEL_NOR | \ CSPR_V) #define CONFIG_SYS_NOR_AMASK IFC_AMASK(128*1024*1024) + +/* + * TDM Definition + */ +#define T1040_TDM_QUIRK_CCSR_BASE 0xfe000000 + /* NOR Flash Timing Params */ #define CONFIG_SYS_NOR_CSOR CSOR_NAND_TRHZ_80 #define CONFIG_SYS_NOR_FTIM0 (FTIM0_NOR_TACSE(0x4) | \ diff --git a/include/configs/T104xRDB.h b/include/configs/T104xRDB.h index e564cb7f53..8d6c51bb37 100644 --- a/include/configs/T104xRDB.h +++ b/include/configs/T104xRDB.h @@ -230,6 +230,12 @@ CSPR_MSEL_NOR | \ CSPR_V) #define CONFIG_SYS_NOR_AMASK IFC_AMASK(128*1024*1024) + +/* + * TDM Definition + */ +#define T1040_TDM_QUIRK_CCSR_BASE 0xfe000000 + /* NOR Flash Timing Params */ #define CONFIG_SYS_NOR_CSOR CSOR_NAND_TRHZ_80 #define CONFIG_SYS_NOR_FTIM0 (FTIM0_NOR_TACSE(0x4) | \ -- cgit