u-boot/board/sbc8548
Paul Gortmaker 5f4c6f0db9 sbc8548: Fix LBC SDRAM initialization settings
These were cloned from the mpc8548cds platform which has
a different memory layout (1/2 the size).  Set the values
by comparing to the register file for the board used during
JTAG init sequence:

	LSDMR1		0x2863B727	/* PCHALL */
	LSDMR2		0x0863B727	/* NORMAL */
	LSDMR3		0x1863B727	/* MRW    */
	LSDMR4		0x4063B727	/* RFEN   */

This differs from what was there already in that the RFEN is
not bundled in all four steps implicitly, but issued once
as the final step.

The other difference seen when comparing vs. the register file init,
is that since the memory is split across /CS3 and /CS4, the dummy
writes need to go to 0xf000_0000 _and_ to 0xf400_0000.

We also rewrite the final LBC SDRAM inits as macros, as there is
no real need for them to be a local variable that is modified
on the fly at runtime.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-11 13:59:03 -06:00
..
ddr.c powerpc/8xxx: Refactor fsl_ddr_get_spd into common code from board 2011-04-04 09:24:41 -05:00
law.c sbc8548: enable ability to boot from alternate flash 2012-01-11 13:58:14 -06:00
Makefile punt unused clean/distclean targets 2011-10-15 22:20:36 +02:00
sbc8548.c sbc8548: Fix LBC SDRAM initialization settings 2012-01-11 13:59:03 -06:00
tlb.c sbc8548: enable ability to boot from alternate flash 2012-01-11 13:58:14 -06:00