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authorIlya Yanok <yanok@emcraft.com>2010-09-17 23:41:49 +0200
committerWolfgang Denk <wd@denx.de>2010-09-23 21:14:08 +0200
commit65ea758939a7bcbc87fe1c1bd816a98176bc2a9b (patch)
tree13048971c089c4ed70f7012cbbec1f6d7e4c2f10 /board/freescale/mpc8308rdb/sdram.c
parentf3ce250d96588d96bd4148883455e00ea14adca5 (diff)
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MPC8308RDB: various clean ups
This patch cleans up the Freescale MPC8308RDB Development board support. Things fixed: - Removed unused PCIE2 definitions from configuration - SICR{L,H} defines used for System I/O Configuration Registers values instead of hardcoding - CONFIG_SYS_SCCR_PCIEXP1CM used to enable PCIE clock instead of writing to SCCR from the board code - sleep mode stuff removed as MPC8308 has no support for deep sleep and PMCCR1 register. board_early_init_f() removed. - MPC8308 has no ERRATA for DDR controller so workaround removed - 'assignment in if statement' issues solved - use LBLAWAR_* defines instead of hardcoding Signed-off-by: Ilya Yanok <yanok@emcraft.com> Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Diffstat (limited to 'board/freescale/mpc8308rdb/sdram.c')
-rw-r--r--board/freescale/mpc8308rdb/sdram.c31
1 files changed, 1 insertions, 30 deletions
diff --git a/board/freescale/mpc8308rdb/sdram.c b/board/freescale/mpc8308rdb/sdram.c
index 939c1b8..1a6b9c7 100644
--- a/board/freescale/mpc8308rdb/sdram.c
+++ b/board/freescale/mpc8308rdb/sdram.c
@@ -38,20 +38,6 @@
DECLARE_GLOBAL_DATA_PTR;
-static void resume_from_sleep(void)
-{
- 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");
-}
-
/* Fixed sdram init -- doesn't use serial presence detect.
*
* This is useful for faster booting in configs where the RAM is unlikely
@@ -68,12 +54,6 @@ static long fixed_sdram(void)
out_be32(&im->sysconf.ddrlaw[0].ar, LBLAWAR_EN | (msize_log2 - 1));
out_be32(&im->sysconf.ddrcdr, CONFIG_SYS_DDRCDR_VALUE);
- /*
- * Erratum DDR3 requires a 50ms delay after clearing DDRCDR[DDR_cfg],
- * or the DDR2 controller may fail to initialize correctly.
- */
- udelay(50000);
-
out_be32(&im->ddr.csbnds[0].csbnds, (msize - 1) >> 24);
out_be32(&im->ddr.cs_config[0], CONFIG_SYS_DDR_CS0_CONFIG);
@@ -86,13 +66,7 @@ static long fixed_sdram(void)
out_be32(&im->ddr.timing_cfg_2, CONFIG_SYS_DDR_TIMING_2);
out_be32(&im->ddr.timing_cfg_0, CONFIG_SYS_DDR_TIMING_0);
- if (in_be32(&im->pmc.pmccr1) & PMCCR1_POWER_OFF) {
- out_be32(&im->ddr.sdram_cfg,
- CONFIG_SYS_DDR_SDRAM_CFG | SDRAM_CFG_BI);
- } else {
- out_be32(&im->ddr.sdram_cfg, CONFIG_SYS_DDR_SDRAM_CFG);
- }
-
+ out_be32(&im->ddr.sdram_cfg, CONFIG_SYS_DDR_SDRAM_CFG);
out_be32(&im->ddr.sdram_cfg2, CONFIG_SYS_DDR_SDRAM_CFG2);
out_be32(&im->ddr.sdram_mode, CONFIG_SYS_DDR_MODE);
out_be32(&im->ddr.sdram_mode2, CONFIG_SYS_DDR_MODE2);
@@ -118,9 +92,6 @@ phys_size_t initdram(int board_type)
/* DDR SDRAM */
msize = fixed_sdram();
- if (in_be32(&im->pmc.pmccr1) & PMCCR1_POWER_OFF)
- resume_from_sleep();
-
/* return total bus SDRAM size(bytes) -- DDR */
return msize;
}