[PATCH v3 09/22] arm: mach-k3: am62p5_init: Resume on LPM exit

Markus Schneider-Pargmann msp at baylibre.com
Mon Jun 23 14:08:32 CEST 2025


When exiting a low power mode with DDR self-refresh, we can directly
resume after DDR setup is done. Call the common function to resume.

Signed-off-by: Markus Schneider-Pargmann <msp at baylibre.com>
---
 arch/arm/mach-k3/am62px/am62p5_init.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/mach-k3/am62px/am62p5_init.c b/arch/arm/mach-k3/am62px/am62p5_init.c
index aeec07f6067abb40dfa4019344e0782ea7b7f5a0..aeba6696bb2c103f704fb227e436fe73a71e245c 100644
--- a/arch/arm/mach-k3/am62px/am62p5_init.c
+++ b/arch/arm/mach-k3/am62px/am62p5_init.c
@@ -253,6 +253,16 @@ void board_init_f(ulong dummy)
 	spl_enable_cache();
 
 	setup_qos();
+
+	if (wkup_ctrl_is_lpm_exit()) {
+		u64 meta_data_addr;
+
+		ret = wkup_r5f_am62_lpm_meta_data_addr(&meta_data_addr);
+		if (ret)
+			panic("Failed to get LPM meta data address %d\n", ret);
+		lpm_resume_from_ddr(meta_data_addr);
+	}
+
 	debug("am62px_init: %s done\n", __func__);
 
 	fixup_a53_cpu_freq_by_speed_grade();

-- 
2.49.0



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