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powerpc/mpc8xxx: Enable calculation for fixed DDR chips

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We used to have fixed parameters for soldered DDR chips. This patch
introduces CONFIG_SYS_DDR_RAW_TIMING to enable calculation based on timing
data from DDR chip datasheet, implemneted in board-specific files or header
files.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
York Sun
2011-06-07 09:42:16 +08:00
committed by Kumar Gala
parent aeb6716a12
commit 1b3e3c4f26
5 changed files with 39 additions and 3 deletions
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4
arch/powerpc/cpu/mpc85xx/cpu.c
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@ -336,7 +336,9 @@ phys_size_t initdram(int board_type)
}
#endif
#if defined(CONFIG_SPD_EEPROM) || defined(CONFIG_DDR_SPD)
#if defined(CONFIG_SPD_EEPROM) || \
defined(CONFIG_DDR_SPD) || \
defined(CONFIG_SYS_DDR_RAW_TIMING)
dram_size = fsl_ddr_sdram();
#else
dram_size = fixed_sdram();