arm: socfpga: clock: Clean up pll_config.h

Extract the clock configuration horribleness caused by pll_config.h in
the following manner.

First of all, introduce a few new accessors which return values of
various clocks used in clock_manager.c and use them in clock_manager.c .
These accessors replace those few macros which came from pll_config.h
originally. Also introduce an accessor which returns the struct cm_config
default configuration for the clock manager used in SPL.

The accessors are implemented in a board-specific wrap_pll_config.c
file, whose sole purpose is to include the qts-generated pll_config.h
and provide only the necessary values to the clock manager.

The purpose of this design is to limit the scope of inclusion for the
pll_config.h , which thus far was included build-wide and poluted the
namespace. With this change, the inclusion is limited to just the new
wrap_pll_config.c file, which in turn provides three simple functions
for the clock_manager.c to use.

Signed-off-by: Marek Vasut <marex@denx.de>

1 files changed, 7 insertions, 1 deletions

diff --git a/arch/arm/mach-socfpga/include/mach/clock_manager.h b/arch/arm/mach-socfpga/include/mach/clock_manager.h
index 8a3362f..2675951 100644
--- a/arch/arm/mach-socfpga/include/mach/clock_manager.h
+++ b/arch/arm/mach-socfpga/include/mach/clock_manager.h
@@ -15,6 +15,12 @@ unsigned int cm_get_l4_sp_clk_hz(void);
 unsigned int cm_get_mmc_controller_clk_hz(void);
 unsigned int cm_get_qspi_controller_clk_hz(void);
 unsigned int cm_get_spi_controller_clk_hz(void);
+const unsigned int cm_get_osc_clk_hz(const int osc);
+const unsigned int cm_get_f2s_per_ref_clk_hz(void);
+const unsigned int cm_get_f2s_sdr_ref_clk_hz(void);
+
+/* Clock configuration accessors */
+const struct cm_config * const cm_get_default_config(void);
 #endif
 
 struct cm_config {
@@ -51,7 +57,7 @@ struct cm_config {
 	uint32_t s2fuser2clk;
 };
 
-extern void cm_basic_init(const struct cm_config *cfg);
+void cm_basic_init(const struct cm_config * const cfg);
 
 struct socfpga_clock_manager_main_pll {
 	u32	vco;