Dear Maruk,
I am currently trying to address the exact same issue (SDRAM size detection and fixup). My idea was however (as opposed to moving register definition as you did), to add a fixup function to dram.c, say:
/* * kw_sdram_bs - writes SDRAM Bank size */ void kw_sdram_bs_set(enum memory_bank bank, u32 size) { /* Read current register value */ u32 reg = readl(KW_REG_CPUCS_WIN_SZ(bank));
printf("Current value: %x\n", reg); /* Clear window size */ reg &= ~KW_REG_CPUCS_WIN_SIZE(0xFF);
/* Set new window size */ reg |= KW_REG_CPUCS_WIN_SIZE((size - 1) >> 24); printf("Writing: %x\n", reg); writel(reg, KW_REG_CPUCS_WIN_SZ(bank)); }
which would then be called to fix the window size according to the total memory size as reported by get_ram_size().
What do you think?
Thank you, Gerlando