arm: mach-k3: am642: Update MAIN UART1 serial alias from 3 to 1

The upstream device tree changed the serial alias for MAIN UART1 from
serial3 to serial1. Update the board initialization code to match this
change by modifying the UCLASS_SERIAL sequence number lookup.

This ensures proper pin control configuration for the UART used by
system firmware (SYSFW).

Signed-off-by: Vishal Mahaveer <vishalm@ti.com>
Fixes: d2edabfa8de5 ("arm: mach-k3: am642: Load SYSFW binary and config from boot media")
Reviewed-by: Bryan Brattlof <bb@ti.com>

diff --git a/arch/arm/mach-k3/am64x/am642_init.c b/arch/arm/mach-k3/am64x/am642_init.c
index a15adf1cb1e725e177747b93cccb5a7cdb5ddc3b..d6cc7a85aae5ec6659b85334cd2f78d1dd234da7 100644 (file)
--- a/arch/arm/mach-k3/am64x/am642_init.c
+++ b/arch/arm/mach-k3/am64x/am642_init.c
@@ -212,14 +212,14 @@ void board_init_f(ulong dummy)
 
 #if defined(CONFIG_K3_LOAD_SYSFW)
        /*
-        * Process pinctrl for serial3 a.k.a. MAIN UART1 module and continue
+        * Process pinctrl for serial1 a.k.a. MAIN UART1 module and continue
         * regardless of the result of pinctrl. Do this without probing the
         * device, but instead by searching the device that would request the
         * given sequence number if probed. The UART will be used by the system
         * firmware (SYSFW) image for various purposes and SYSFW depends on us
         * to initialize its pin settings.
         */
-       ret = uclass_find_device_by_seq(UCLASS_SERIAL, 3, &dev);
+       ret = uclass_find_device_by_seq(UCLASS_SERIAL, 1, &dev);
        if (!ret)
                pinctrl_select_state(dev, "default");