From 65ea758939a7bcbc87fe1c1bd816a98176bc2a9b Mon Sep 17 00:00:00 2001 From: Ilya Yanok Date: Fri, 17 Sep 2010 23:41:49 +0200 Subject: 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 Signed-off-by: Kim Phillips --- board/freescale/mpc8308rdb/sdram.c | 31 +------------------------------ 1 file changed, 1 insertion(+), 30 deletions(-) (limited to 'board/freescale/mpc8308rdb/sdram.c') 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; } -- cgit v1.1