arch: arm: mach-k3: j784s4_init: Set CTRL_MMR for AUDIO_REFCLK1 clk_sel

The default value for the mux to select the parent clock,
AUDIO_REFCLK1_CTRL_CLK_SEL is '11111' (31) but the mux input for 31
is marked as 'Reserved' so the ti-sci-clk call for get-parent fails.
Mark it to a valid value, '11100' (28) for MAIN_PLL4_HSDIV2_CLKOUT
to get rid of the linux failures during boot-time like:
"[    1.573193] ti-sci-clk 44083000.system-controller:clock-controller:
 get-parent failed for dev=157, clk=34, ret=-19"

Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>

diff --git a/arch/arm/mach-k3/j784s4/j784s4_init.c b/arch/arm/mach-k3/j784s4/j784s4_init.c
index 8a41cd3..787cf62 100644 (file)
--- a/arch/arm/mach-k3/j784s4/j784s4_init.c
+++ b/arch/arm/mach-k3/j784s4/j784s4_init.c
@@ -23,6 +23,9 @@
 
 #define J784S4_MAX_DDR_CONTROLLERS     4
 
+#define CTRL_MMR_CFG0_AUDIO_REFCLK1_CTRL       0x001082e4
+#define AUDIO_REFCLK1_DEFAULT                  0x1c
+
 /* NAVSS North Bridge (NB) */
 #define NAVSS0_NBSS_NB0_CFG_MMRS               0x03702000
 #define NAVSS0_NBSS_NB1_CFG_MMRS               0x03703000
@@ -201,6 +204,8 @@ void k3_spl_init(void)
                remove_fwl_configs(navss_cbass0_fwls, ARRAY_SIZE(navss_cbass0_fwls));
        }
 
+       writel(AUDIO_REFCLK1_DEFAULT, (uintptr_t)CTRL_MMR_CFG0_AUDIO_REFCLK1_CTRL);
+
        /* Output System Firmware version info */
        k3_sysfw_print_ver();
 }