clk: Port Linux common clock framework [CCF] for imx6q to U-boot (tag: v5.1.12)
This patch brings the files from Linux kernel (linux-stable/linux-5.1.y
SHA1: 5752b50477da)to provide clocks support as it is used on the Linux
kernel with Common Clock Framework [CCF] setup.
The directory structure has been preserved. The ported code only supports
reading information from PLL, MUX, Divider, etc and enabling/disabling
the clocks USDHCx/ECSPIx depending on used bus. Moreover, it is agnostic
to the alias numbering as the information about the clock is read from the
device tree.
One needs to pay attention to the comments indicating necessary for U-Boot's
driver model changes.
If needed, the code can be extended to support the "set" part of the clock
management.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
diff --git a/drivers/clk/imx/Kconfig b/drivers/clk/imx/Kconfig
index a6fb58d..3e6a980 100644
--- a/drivers/clk/imx/Kconfig
+++ b/drivers/clk/imx/Kconfig
@@ -1,3 +1,19 @@
+config SPL_CLK_IMX6Q
+ bool "SPL clock support for i.MX6Q"
+ depends on ARCH_MX6 && SPL
+ select SPL_CLK
+ select SPL_CLK_CCF
+ help
+ This enables SPL DM/DTS support for clock driver in i.MX6Q platforms.
+
+config CLK_IMX6Q
+ bool "Clock support for i.MX6Q"
+ depends on ARCH_MX6
+ select CLK
+ select CLK_CCF
+ help
+ This enables DM/DTS support for clock driver in i.MX6Q platforms.
+
config CLK_IMX8
bool "Clock support for i.MX8"
depends on ARCH_IMX8