From: Phil Edworthy Date: Tue, 29 Nov 2016 12:58:28 +0000 (+0000) Subject: spi: cadence_qspi: Better debug information on the SPI clock rate X-Git-Tag: v2017.01-rc2~7^2~9 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=0ceb4d9e9a64dcc662ea52150feebed37deda716;p=oweals%2Fu-boot.git spi: cadence_qspi: Better debug information on the SPI clock rate Show what the output clock rate actually is. Signed-off-by: Phil Edworthy Acked-by: Marek Vasut Reviewed-by: Jagan Teki --- diff --git a/drivers/spi/cadence_qspi_apb.c b/drivers/spi/cadence_qspi_apb.c index b5c664fe36..0a2963de35 100644 --- a/drivers/spi/cadence_qspi_apb.c +++ b/drivers/spi/cadence_qspi_apb.c @@ -280,13 +280,13 @@ void cadence_qspi_apb_config_baudrate_div(void *reg_base, */ div = DIV_ROUND_UP(ref_clk_hz, sclk_hz * 2) - 1; - debug("%s: ref_clk %dHz sclk %dHz Div 0x%x\n", __func__, - ref_clk_hz, sclk_hz, div); - /* ensure the baud rate doesn't exceed the max value */ if (div > CQSPI_REG_CONFIG_BAUD_MASK) div = CQSPI_REG_CONFIG_BAUD_MASK; + debug("%s: ref_clk %dHz sclk %dHz Div 0x%x, actual %dHz\n", __func__, + ref_clk_hz, sclk_hz, div, ref_clk_hz / (2 * (div + 1))); + reg |= (div << CQSPI_REG_CONFIG_BAUD_LSB); writel(reg, reg_base + CQSPI_REG_CONFIG);