[PATCHv4 22/26] arm: mach-k3: j721e_init: Force early probe of clk-k3 driver
Tero Kristo
kristo at kernel.org
Tue May 11 10:31:00 CEST 2021
From: Dave Gerlach <d-gerlach at ti.com>
Force the clk-k3 driver to probe early during R5 SPL boot to ensure the
default system clock configuration is completed. Many other drivers
assume a default state of the clock tree and it is currently possible
for them to probe before clk-k3 depending on the exact system
configuration.
Signed-off-by: Dave Gerlach <d-gerlach at ti.com>
Reported-by: Keerthy <j-keerthy at ti.com>
Tested-by: Keerthy <j-keerthy at ti.com>
Signed-off-by: Tero Kristo <kristo at kernel.org>
---
arch/arm/mach-k3/j721e_init.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/arm/mach-k3/j721e_init.c b/arch/arm/mach-k3/j721e_init.c
index 1a4f796e5e..b5268372dd 100644
--- a/arch/arm/mach-k3/j721e_init.c
+++ b/arch/arm/mach-k3/j721e_init.c
@@ -180,6 +180,18 @@ void board_init_f(ulong dummy)
k3_sysfw_loader(is_rom_loaded_sysfw(&bootdata),
k3_mmc_stop_clock, k3_mmc_restart_clock);
+#ifdef CONFIG_SPL_CLK_K3
+ /*
+ * Force probe of clk_k3 driver here to ensure basic default clock
+ * configuration is always done.
+ */
+ ret = uclass_get_device_by_driver(UCLASS_CLK,
+ DM_DRIVER_GET(ti_clk),
+ &dev);
+ if (ret)
+ panic("Failed to initialize clk-k3!\n");
+#endif
+
/* Prepare console output */
preloader_console_init();
--
2.17.1
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