diff options
| author | Vikas Manocha <vikas.manocha@st.com> | 2017-04-10 22:02:55 (GMT) |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-05-08 15:39:04 (GMT) |
| commit | d0b24c1aa96729d4d9fee02e2c60fc920068c6c5 (patch) | |
| tree | 68e8193d2a4d92940e5083ba6666299ea5d38a47 | |
| parent | 2d9c33ca3f7ba69eaf4b2b88f36a0f3cf1a1e19f (diff) | |
| download | u-boot-d0b24c1aa96729d4d9fee02e2c60fc920068c6c5.tar.xz | |
stm32f7: use clock driver to enable sdram controller clock
This patch also removes the sdram/fmc clock enable from board specific
code.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
cc: Christophe KERELLO <christophe.kerello@st.com>
| -rw-r--r-- | arch/arm/dts/stm32f746.dtsi | 1 | ||||
| -rw-r--r-- | board/st/stm32f746-disco/stm32f746-disco.c | 2 | ||||
| -rw-r--r-- | drivers/ram/stm32_sdram.c | 15 |
3 files changed, 16 insertions, 2 deletions
diff --git a/arch/arm/dts/stm32f746.dtsi b/arch/arm/dts/stm32f746.dtsi index 3707550..e9fd6f4 100644 --- a/arch/arm/dts/stm32f746.dtsi +++ b/arch/arm/dts/stm32f746.dtsi @@ -74,6 +74,7 @@ fmc: fmc@A0000000 { compatible = "st,stm32-fmc"; reg = <0xA0000000 0x1000>; + clocks = <&rcc 0 64>; u-boot,dm-pre-reloc; }; diff --git a/board/st/stm32f746-disco/stm32f746-disco.c b/board/st/stm32f746-disco/stm32f746-disco.c index e1113a6..370db15 100644 --- a/board/st/stm32f746-disco/stm32f746-disco.c +++ b/board/st/stm32f746-disco/stm32f746-disco.c @@ -51,8 +51,6 @@ int dram_init(void) if (rv) return rv; - clock_setup(FMC_CLOCK_CFG); - rv = uclass_get_device(UCLASS_RAM, 0, &dev); if (rv) { debug("DRAM init failed: %d\n", rv); diff --git a/drivers/ram/stm32_sdram.c b/drivers/ram/stm32_sdram.c index 67be61f..67d8855 100644 --- a/drivers/ram/stm32_sdram.c +++ b/drivers/ram/stm32_sdram.c @@ -6,6 +6,7 @@ */ #include <common.h> +#include <clk.h> #include <dm.h> #include <ram.h> #include <asm/io.h> @@ -122,6 +123,20 @@ int stm32_sdram_init(void) static int stm32_fmc_probe(struct udevice *dev) { +#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 stm32_sdram_init(); return 0; } |