arm: k3: j721e: add dynamic sf bus override support for j721e

implement overrides for spl_spi_boot_bus() and spl_spi_boot_cs()
lookup functions according to bootmode selection, so as to support
both QSPI and OSPI boot using the same build.

Signed-off-by: Vaishnav Achath <vaishnav.a@ti.com>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>

arch/arm/mach-k3/j721e_init.c

@@ -355,6 +355,17 @@ static u32 __get_primary_bootmedia(u32 main_devstat, u32 wkup_devstat)
 	return bootmode;
 }
 
+u32 spl_spi_boot_bus(void)
+{
+	u32 wkup_devstat = readl(CTRLMMR_WKUP_DEVSTAT);
+	u32 main_devstat = readl(CTRLMMR_MAIN_DEVSTAT);
+	u32 bootmode = ((wkup_devstat & WKUP_DEVSTAT_PRIMARY_BOOTMODE_MASK) >>
+			WKUP_DEVSTAT_PRIMARY_BOOTMODE_SHIFT) |
+			((main_devstat & MAIN_DEVSTAT_BOOT_MODE_B_MASK) << BOOT_MODE_B_SHIFT);
+
+	return (bootmode == BOOT_DEVICE_QSPI) ? 1 : 0;
+}
+
 u32 spl_boot_device(void)
 {
 	u32 wkup_devstat = readl(CTRLMMR_WKUP_DEVSTAT);

arch/arm/mach-k3/sysfw-loader.c

@@ -324,9 +324,9 @@ static void *k3_sysfw_get_spi_addr(void)
 	struct udevice *dev;
 	fdt_addr_t addr;
 	int ret;
+	unsigned int sf_bus = spl_spi_boot_bus();
 
-	ret = uclass_find_device_by_seq(UCLASS_SPI, CONFIG_SF_DEFAULT_BUS,
+	ret = uclass_find_device_by_seq(UCLASS_SPI, sf_bus, &dev);
-					&dev);
 	if (ret)
 		return NULL;