summaryrefslogtreecommitdiff
path: root/board/mpc8313erdb/sdram.c
diff options
context:
space:
mode:
authorKim Phillips <kim.phillips@freescale.com>2007-08-17 03:53:09 (GMT)
committerKim Phillips <kim.phillips@freescale.com>2007-08-17 04:12:31 (GMT)
commite58fe95784d2514fc9c21028dc59f2b319a35d80 (patch)
tree2c967d360c6787a9904d4fe34d3114a9b6fa99de /board/mpc8313erdb/sdram.c
parent5aa4ad8d8e7e9468219990c7875d5fdc9e962f47 (diff)
downloadu-boot-e58fe95784d2514fc9c21028dc59f2b319a35d80.tar.xz
mpc83xx: move freescale boards to boards/freescale
includes build fixes. Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Diffstat (limited to 'board/mpc8313erdb/sdram.c')
-rw-r--r--board/mpc8313erdb/sdram.c130
1 files changed, 0 insertions, 130 deletions
diff --git a/board/mpc8313erdb/sdram.c b/board/mpc8313erdb/sdram.c
deleted file mode 100644
index e6e8410..0000000
--- a/board/mpc8313erdb/sdram.c
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
- * Copyright (C) Freescale Semiconductor, Inc. 2006-2007
- *
- * Authors: Nick.Spence@freescale.com
- * Wilson.Lo@freescale.com
- * scottwood@freescale.com
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS for A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <mpc83xx.h>
-#include <spd_sdram.h>
-
-#include <asm/bitops.h>
-#include <asm/io.h>
-
-#include <asm/processor.h>
-
-#ifndef CFG_8313ERDB_BROKEN_PMC
-static void resume_from_sleep(void)
-{
- DECLARE_GLOBAL_DATA_PTR;
- u32 magic = *(u32 *)0;
-
- typedef void (*func_t)(void);
- func_t resume = *(func_t *)4;
-
- if (magic == 0xf5153ae5)
- resume();
-
- gd->flags &= ~GD_FLG_SILENT;
- puts("\nResume from sleep failed: bad magic word\n");
-}
-#endif
-
-/* Fixed sdram init -- doesn't use serial presence detect.
- *
- * This is useful for faster booting in configs where the RAM is unlikely
- * to be changed, or for things like NAND booting where space is tight.
- */
-static long fixed_sdram(void)
-{
- volatile immap_t *im = (volatile immap_t *)CFG_IMMR;
- u32 msize = CFG_DDR_SIZE * 1024 * 1024;
- u32 msize_log2 = __ilog2(msize);
-
- im->sysconf.ddrlaw[0].bar = CFG_DDR_SDRAM_BASE >> 12;
- im->sysconf.ddrlaw[0].ar = LBLAWAR_EN | (msize_log2 - 1);
- im->sysconf.ddrcdr = CFG_DDRCDR_VALUE;
-
- /*
- * Erratum DDR3 requires a 50ms delay after clearing DDRCDR[DDR_cfg],
- * or the DDR2 controller may fail to initialize correctly.
- */
- udelay(50000);
-
- im->ddr.csbnds[0].csbnds = (msize - 1) >> 24;
- im->ddr.cs_config[0] = CFG_DDR_CONFIG;
-
- /* Currently we use only one CS, so disable the other bank. */
- im->ddr.cs_config[1] = 0;
-
- im->ddr.sdram_clk_cntl = CFG_DDR_CLK_CNTL;
- im->ddr.timing_cfg_3 = CFG_DDR_TIMING_3;
- im->ddr.timing_cfg_1 = CFG_DDR_TIMING_1;
- im->ddr.timing_cfg_2 = CFG_DDR_TIMING_2;
- im->ddr.timing_cfg_0 = CFG_DDR_TIMING_0;
-
-#ifndef CFG_8313ERDB_BROKEN_PMC
- if (im->pmc.pmccr1 & PMCCR1_POWER_OFF)
- im->ddr.sdram_cfg = CFG_SDRAM_CFG | SDRAM_CFG_BI;
- else
-#endif
- im->ddr.sdram_cfg = CFG_SDRAM_CFG;
-
- im->ddr.sdram_cfg2 = CFG_SDRAM_CFG2;
- im->ddr.sdram_mode = CFG_DDR_MODE;
- im->ddr.sdram_mode2 = CFG_DDR_MODE_2;
-
- im->ddr.sdram_interval = CFG_DDR_INTERVAL;
- sync();
-
- /* enable DDR controller */
- im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
-
- return msize;
-}
-
-long int initdram(int board_type)
-{
- volatile immap_t *im = (volatile immap_t *)CFG_IMMR;
- volatile lbus83xx_t *lbc = &im->lbus;
- u32 msize;
-
- if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32)im)
- return -1;
-
- /* DDR SDRAM - Main SODIMM */
- msize = fixed_sdram();
-
- /* Local Bus setup lbcr and mrtpr */
- lbc->lbcr = CFG_LBC_LBCR;
- lbc->mrtpr = CFG_LBC_MRTPR;
- sync();
-
-#ifndef CFG_8313ERDB_BROKEN_PMC
- if (im->pmc.pmccr1 & PMCCR1_POWER_OFF)
- resume_from_sleep();
-#endif
-
- /* return total bus SDRAM size(bytes) -- DDR */
- return msize;
-}