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authorSandeep Singh <sandeep@freescale.com>2014-06-05 18:49:57 +0530
committerYork Sun <yorksun@freescale.com>2014-06-05 13:45:07 -0700
commit377ffcfabff39d2f812c28e54152cb53839ce338 (patch)
tree1d986733cb4cf0d37ed4bc43bc861e6dd5c8a0ed /arch/powerpc/include/asm/fsl_liodn.h
parentfa6e742825f1e1e00ac69c6829e75f14a1a51e9f (diff)
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 <Sandeep@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'arch/powerpc/include/asm/fsl_liodn.h')
-rw-r--r--arch/powerpc/include/asm/fsl_liodn.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/fsl_liodn.h b/arch/powerpc/include/asm/fsl_liodn.h
index f658bcbc66..adfbb66e77 100644
--- a/arch/powerpc/include/asm/fsl_liodn.h
+++ b/arch/powerpc/include/asm/fsl_liodn.h
@@ -103,6 +103,10 @@ extern void fdt_fixup_liodn(void *blob);
SET_GUTS_LIODN("fsl,qe", liodn, qeliodnr,\
CONFIG_SYS_MPC85xx_QE_OFFSET)
+#define SET_TDM_LIODN(liodn) \
+ SET_GUTS_LIODN("fsl,tdm1.0", liodn, tdmliodnr,\
+ CONFIG_SYS_MPC85xx_TDM_OFFSET)
+
#define SET_QMAN_LIODN(liodn) \
SET_LIODN_ENTRY_1("fsl,qman", liodn, offsetof(ccsr_qman_t, liodnr) + \
CONFIG_SYS_FSL_QMAN_OFFSET, \