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
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