From 38dba0c2ff685e3f8276a236bd70eaa09c84ead5 Mon Sep 17 00:00:00 2001 From: Becky Bruce Date: Fri, 17 Dec 2010 17:17:56 -0600 Subject: mpc85xx boards: initdram() cleanup/bugfix Correct initdram to use phys_size_t to represent the size of dram; instead of changing this all over the place, and correcting all the other random errors I've noticed, create a common initdram that is used by all non-corenet 85xx parts. Most of the initdram() functions were identical, with 2 common differences: 1) DDR tlbs for the fixed_sdram case were set up in initdram() on some boards, and were part of the tlb_table on others. I have changed them all over to the initdram() method - we shouldn't be accessing dram before this point so they don't need to be done sooner, and this seems cleaner. 2) Parts that require the DDR11 erratum workaround had different implementations - I have adopted the version from the Freescale errata document. It also looks like some of the versions were buggy, and, depending on timing, could have resulted in the DDR controller being disabled. This seems bad. The xpedite boards had a common/fsl_8xxx_ddr.c; with this change only the 517 board uses this so I have moved the ddr code into that board's directory in xpedite517x.c Signed-off-by: Becky Bruce Tested-by: Paul Gortmaker Signed-off-by: Kumar Gala --- board/freescale/mpc8548cds/mpc8548cds.c | 38 --------------------------------- 1 file changed, 38 deletions(-) (limited to 'board/freescale/mpc8548cds') diff --git a/board/freescale/mpc8548cds/mpc8548cds.c b/board/freescale/mpc8548cds/mpc8548cds.c index ebeb897490..a4a35fa3bf 100644 --- a/board/freescale/mpc8548cds/mpc8548cds.c +++ b/board/freescale/mpc8548cds/mpc8548cds.c @@ -42,7 +42,6 @@ DECLARE_GLOBAL_DATA_PTR; void local_bus_init(void); -void sdram_init(void); int checkboard (void) { @@ -75,43 +74,6 @@ int checkboard (void) return 0; } -phys_size_t -initdram(int board_type) -{ - long dram_size = 0; - - puts("Initializing\n"); - -#if defined(CONFIG_DDR_DLL) - { - /* - * Work around to stabilize DDR DLL MSYNC_IN. - * Errata DDR9 seems to have been fixed. - * This is now the workaround for Errata DDR11: - * Override DLL = 1, Course Adj = 1, Tap Select = 0 - */ - - volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); - - gur->ddrdllcr = 0x81000000; - asm("sync;isync;msync"); - udelay(200); - } -#endif - - dram_size = fsl_ddr_sdram(); - dram_size = setup_ddr_tlbs(dram_size / 0x100000); - dram_size *= 0x100000; - - /* - * SDRAM Initialization - */ - sdram_init(); - - puts(" DDR: "); - return dram_size; -} - /* * Initialize Local Bus */ -- cgit v1.2.1