[PATCH v9 08/13] arm: mach-k3: am62a7_init: Resume on LPM exit

[Markus Schneider-Pargmann (TI.com)]

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.

Swap order of setup_qos() and spl_enable_cache(). setup_qos() is
required for LPM resume but spl_enable_cache() is not required. There is
no dependency between the two.

Signed-off-by: Markus Schneider-Pargmann (TI.com) <msp at baylibre.com>
---
 arch/arm/mach-k3/am62ax/am62a7_init.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-k3/am62ax/am62a7_init.c b/arch/arm/mach-k3/am62ax/am62a7_init.c
index c1c7d669a45f53b7528c80d44bf9b914fed1cc10..74e598d52420cd2ff59384c69d1b038a40e08cca 100644
--- a/arch/arm/mach-k3/am62ax/am62a7_init.c
+++ b/arch/arm/mach-k3/am62ax/am62a7_init.c
@@ -194,14 +194,24 @@ void board_init_f(ulong dummy)
 		enable_mcu_esm_reset();
 	}
 
+	setup_qos();
+
 #if defined(CONFIG_K3_AM62A_DDRSS)
 	ret = uclass_get_device(UCLASS_RAM, 0, &dev);
 	if (ret)
 		panic("DRAM init failed: %d\n", ret);
-#endif
-	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);
+	}
+#endif
+
+	spl_enable_cache();
 
 	if (IS_ENABLED(CONFIG_SPL_ETH) && IS_ENABLED(CONFIG_TI_AM65_CPSW_NUSS) &&
 	    spl_boot_device() == BOOT_DEVICE_ETHERNET) {

-- 
2.51.0