[PATCH v2 3/5] arm: mach-k3: enable support for falcon mode

[Anshul Dalal]

With CONFIG_SPL_OS_BOOT enabled, U-Boot checks for the return value of
spl_start_uboot to select between falcon or the regular boot flow. Where
a return value of 0 means 'boot to linux'.

This patch overrides the weak definition form common/spl/spl.c to allow
K3 devices to use falcon mode with SPL_OS_BOOT enabled.

Signed-off-by: Anshul Dalal <anshuld at ti.com>
---
 arch/arm/mach-k3/common.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/mach-k3/common.c b/arch/arm/mach-k3/common.c
index 5483ac9906c..c1a4aa1cf9d 100644
--- a/arch/arm/mach-k3/common.c
+++ b/arch/arm/mach-k3/common.c
@@ -303,6 +303,14 @@ static __maybe_unused void k3_dma_remove(void)
 		pr_warn("DMA Device not found (err=%d)\n", rc);
 }
 
+#ifdef CONFIG_SPL_OS_BOOT
+int spl_start_uboot(void)
+{
+	/* Always boot to linux on Cortex A SPL with CONFIG_SPL_OS_BOOT set */
+	return 0;
+}
+#endif
+
 void spl_board_prepare_for_boot(void)
 {
 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF))
-- 
2.51.0