I’ve worked on my custum board based on SEQUOIA.
I’d like to add new device (DSP, SIZE=256M, CS4).
I added tlbentry(256M) in init.S and defined CS4 in sequoia.h.
Init.S:
/* TLB-entry for EBC(DSP) */
tlbentry( CFG_DSP_BASE, SZ_256M, CFG_DSP_BASE, 1,
AC_R|AC_W|AC_X|SA_G|SA_I )
sequoia.h:
#define CFG_DSP_BASE 0xd0000000
#define CFG_EBC_PB4AP 0x05014300
#define CFG_EBC_PB4CR (CFG_DSP_BASE | 0x3a000)
The problem is this.
When I access over 2Mbytes area of DSP4(Over d0200000), I’ve got bus error
in my application.
Accessing to under 2Mbytes, it works well….
Are there anything to do, when I want to attatch new devices????
Best Regards…
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