diff --git a/drivers/spi/spi-loongson-core.c b/drivers/spi/spi-loongson-core.c
index f34eb10da..3de7e9016 100644
--- a/drivers/spi/spi-loongson-core.c
+++ b/drivers/spi/spi-loongson-core.c
@@ -42,12 +42,16 @@ static void loongson_spi_set_clk(struct loongson_spi *loongson_spi, unsigned int
 {
 	unsigned char val;
 	unsigned int div, div_tmp;
-	static const char rdiv[12] = {0, 1, 4, 2, 3, 5, 6, 7, 8, 9, 10, 11};
+	// 第一个元素是无效的，肯定不会进来的
+	static const char spre[13] = {0, 0, 0, 1, 0, 0, 1, 1, 1, 2, 2, 2, 2};
+	static const char  spr[13] = {0, 0, 1, 0, 2, 3, 1, 2, 3, 0, 1, 2, 3};
 
 	div = clamp_val(DIV_ROUND_UP_ULL(loongson_spi->clk_rate, hz), 2, 4096);
-	div_tmp = rdiv[fls(div - 1)];
-	loongson_spi->spcr = (div_tmp & GENMASK(1, 0)) >> 0;
-	loongson_spi->sper = (div_tmp & GENMASK(3, 2)) >> 2;
+	div_tmp = fls(div - 1);
+
+	loongson_spi->spcr = spr[div_tmp];
+	loongson_spi->sper = spre[div_tmp];
+
 	val = loongson_spi_read_reg(loongson_spi, LOONGSON_SPI_SPCR_REG);
 	val &= ~GENMASK(1, 0);
 	loongson_spi_write_reg(loongson_spi, LOONGSON_SPI_SPCR_REG, val |