diff --git a/drivers/spi/spi-sunxi.c b/drivers/spi/spi-sunxi.c index 628294948b..c56d82d998 100644 --- a/drivers/spi/spi-sunxi.c +++ b/drivers/spi/spi-sunxi.c @@ -72,9 +72,15 @@ DECLARE_GLOBAL_DATA_PTR; #define SUN4I_XMIT_CNT(cnt) ((cnt) & SUN4I_MAX_XFER_SIZE) #define SUN4I_FIFO_STA_RF_CNT_BITS 0 +#ifdef CONFIG_MACH_SUNIV +/* the AHB clock, which we programmed to be 1/3 of PLL_PERIPH@600MHz */ +#define SUNXI_INPUT_CLOCK 200000000 /* 200 MHz */ +#define SUN4I_SPI_MAX_RATE (SUNXI_INPUT_CLOCK / 2) +#else /* the SPI mod clock, defaulting to be 1/1 of the HOSC@24MHz */ #define SUNXI_INPUT_CLOCK 24000000 /* 24 MHz */ #define SUN4I_SPI_MAX_RATE SUNXI_INPUT_CLOCK +#endif #define SUN4I_SPI_MIN_RATE 3000 #define SUN4I_SPI_DEFAULT_RATE 1000000 #define SUN4I_SPI_TIMEOUT_MS 1000 @@ -256,6 +262,9 @@ static void sun4i_spi_set_speed_mode(struct udevice *dev) reg |= SUN4I_CLK_CTL_CDR2(div) | SUN4I_CLK_CTL_DRS; } else { div = fls(div - 1); + /* The F1C100s encodes the divider as 2^(n+1) */ + if (IS_ENABLED(CONFIG_MACH_SUNIV)) + div--; reg &= ~((SUN4I_CLK_CTL_CDR1_MASK << 8) | SUN4I_CLK_CTL_DRS); reg |= SUN4I_CLK_CTL_CDR1(div); }