Hello Everybody,
During the power on self tests, the bootmode of the board is stored in the processor DPRAM. This location is hardcoded in commproc.h. The following patch adds the opportunity to override this value in the board config file. The position of this value in DPRAM depends on the usage of the DPRAM made by the operating system.
For example, on an MPC860T, I've add #define CFG_CPM_POST_WORD_ADDR 0x0ffc in the board config file to have the bootmode being the last word of the DPRAM.
--- ppcboot-2.0.0/include/commproc.h 2002-10-16 13:31:18.000000000 +0200 +++ ppcboot-2.0.0-m/include/commproc.h 2002-11-21 10:42:31.000000000 +0100 @@ -77,7 +77,11 @@
#endif
+#ifndef CFG_CPM_POST_WORD_ADDR #define CPM_POST_WORD_ADDR 0x07FC +#else +#define CPM_POST_WORD_ADDR CFG_CPM_POST_WORD_ADDR +#endif
#define BD_IIC_START ((uint) 0x0400) // <- please use CPM_I2C_BASE !!
Best regards