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| author | Stefan Roese <sr@denx.de> | 2008-06-02 17:13:55 +0200 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2008-06-03 20:22:03 +0200 |
| commit | ec724f883ee3f3925e6c55027e8ffa70ada83303 (patch) | |
| tree | fe01db2e9f65d2743d237714fae0526bd45bfc45 /cpu/ppc4xx/44x_spd_ddr2.c | |
| parent | 17ceb069b85fbb9269c4dc09b2c237f88334c5ba (diff) | |
| download | blackbird-obmc-uboot-ec724f883ee3f3925e6c55027e8ffa70ada83303.tar.gz blackbird-obmc-uboot-ec724f883ee3f3925e6c55027e8ffa70ada83303.zip | |
ppc4xx: Change Kilauea to use the common DDR2 init function
This patch changes the kilauea and kilauea_nand (for NAND booting)
board port to not use a board specific DDR2 init routine anymore. Now
the common code from cpu/ppc4xx is used.
Thanks to Grant Erickson for all his basic work on this 405EX early
bootup.
Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'cpu/ppc4xx/44x_spd_ddr2.c')
| -rw-r--r-- | cpu/ppc4xx/44x_spd_ddr2.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/cpu/ppc4xx/44x_spd_ddr2.c b/cpu/ppc4xx/44x_spd_ddr2.c index aa4a5302e0..521491820d 100644 --- a/cpu/ppc4xx/44x_spd_ddr2.c +++ b/cpu/ppc4xx/44x_spd_ddr2.c @@ -3083,6 +3083,16 @@ static void ppc440sp_sdram_register_dump(void) *---------------------------------------------------------------------------*/ long initdram(int board_type) { + /* + * Only run this SDRAM init code once. For NAND booting + * targets like Kilauea, we call initdram() early from the + * 4k NAND booting image (CONFIG_NAND_SPL) from nand_boot(). + * Later on the NAND U-Boot image runs (CONFIG_NAND_U_BOOT) + * which calls initdram() again. This time the controller + * mustn't be reconfigured again since we're already running + * from SDRAM. + */ +#if !defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL) unsigned long val; /* Set Memory Bank Configuration Registers */ @@ -3178,6 +3188,7 @@ long initdram(int board_type) #if defined(CONFIG_DDR_ECC) ecc_init(CFG_SDRAM_BASE, CFG_MBYTES_SDRAM << 20); #endif /* defined(CONFIG_DDR_ECC) */ +#endif /* !defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL) */ return (CFG_MBYTES_SDRAM << 20); } |
