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| author | Vikas Manocha <vikas.manocha@st.com> | 2017-02-12 10:25:46 -0800 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-03-17 14:15:13 -0400 |
| commit | fd03b83a9912f265d9ca08a0dd542af3f9b52216 (patch) | |
| tree | 5d090287ea2d393c480e741909516805e9f3c0b5 /drivers/serial | |
| parent | 712f99a5ddc404f8c6eac481cfe19f82ca2ecb4f (diff) | |
| download | u-boot-fd03b83a9912f265d9ca08a0dd542af3f9b52216.tar.gz u-boot-fd03b83a9912f265d9ca08a0dd542af3f9b52216.tar.xz u-boot-fd03b83a9912f265d9ca08a0dd542af3f9b52216.zip | |
stm32f7: serial: use clock driver to enable clock
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/serial_stm32x7.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/serial/serial_stm32x7.c b/drivers/serial/serial_stm32x7.c index 2e6c67688c..1907cef5b3 100644 --- a/drivers/serial/serial_stm32x7.c +++ b/drivers/serial/serial_stm32x7.c @@ -6,6 +6,7 @@ */ #include <common.h> +#include <clk.h> #include <dm.h> #include <asm/io.h> #include <serial.h> @@ -76,6 +77,22 @@ static int stm32_serial_probe(struct udevice *dev) { struct stm32x7_serial_platdata *plat = dev->platdata; struct stm32_usart *const usart = plat->base; + +#ifdef CONFIG_CLK + int ret; + struct clk clk; + + ret = clk_get_by_index(dev, 0, &clk); + if (ret < 0) + return ret; + + ret = clk_enable(&clk); + if (ret) { + dev_err(dev, "failed to enable clock\n"); + return ret; + } +#endif + setbits_le32(&usart->cr1, USART_CR1_RE | USART_CR1_TE | USART_CR1_UE); return 0; @@ -98,6 +115,7 @@ static int stm32_serial_ofdata_to_platdata(struct udevice *dev) return -EINVAL; plat->base = (struct stm32_usart *)addr; + return 0; } #endif |