12gbit_dram_check

diff --git a/arch/arm/mach-sunxi/dram_sun50i_h616.c b/arch/arm/mach-sunxi/dram_sun50i_h616.c
index c5c1331..9b51b7e 100644
--- a/arch/arm/mach-sunxi/dram_sun50i_h616.c
+++ b/arch/arm/mach-sunxi/dram_sun50i_h616.c
@@ -1352,6 +1352,9 @@ static unsigned long mctl_calc_size(const struct dram_config *config)
 	u8 width = config->bus_full_width ? 4 : 2;
 
 	/* 8 banks */
+	u32 offset = (1ULL << (config->cols + config->rows + 3)) * width * config->ranks;
+	if (mctl_mem_matches(offset-0x10))
+		return (1ULL << (config->cols + config->rows + 3)) * width * config->ranks * 3 / 4;
 	return (1ULL << (config->cols + config->rows + 3)) * width * config->ranks;
 }
 

Many thanks, @iuncuim, this is what we were looking for. I am no C coder, but isn't it possible to reuse the offset variable, like

	u32 offset = (1ULL << (config->cols + config->rows + 3)) * width * config->ranks;
	if (mctl_mem_matches(offset-0x10))
		return offset * 3 / 4;
 	return offset;

?

it doesn't matter since it doesn't work with opizero3 lpddr4

Oh that is sad to hear. Then I can skip testing it. Is this one supposed to work instead? EDIT: Just read our answer on the OpenWRT forum.