[U-Boot] [PATCH V3 11/13] spl: announce boot devices

[Nikita Kiryanov]

Now that we support alternative boot devices, it can sometimes be
unclear which boot devices was actually used. Provide a function to
announce which boot devices are attempted during boot.

Signed-off-by: Nikita Kiryanov <nikita at compulab.co.il>
Cc: Igor Grinberg <grinberg at compulab.co.il>
Cc: Tom Rini <trini at konsulko.com>
Cc: Simon Glass <sjg at chromium.org>
---
Changes in V3:
	- Reworked announce_boot_device() to make the code less repititive by
	  utilizing a table of boot_device --> name.

Changes in V2:
	- No changes.
 common/spl/spl.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)

diff --git a/common/spl/spl.c b/common/spl/spl.c
index 7913c52..11b452b 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -178,6 +178,84 @@ int spl_init(void)
 	return 0;
 }
 
+#ifdef CONFIG_SPL_BOARD_LOAD_IMAGE
+__weak void spl_board_announce_boot_device(void) { }
+#endif
+
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+struct boot_device_name {
+	u32 boot_dev;
+	const char *name;
+};
+
+struct boot_device_name boot_name_table[] = {
+#ifdef CONFIG_SPL_RAM_DEVICE
+	{ BOOT_DEVICE_RAM, "RAM" },
+#endif
+#ifdef CONFIG_SPL_MMC_SUPPORT
+	{ BOOT_DEVICE_MMC1, "MMC" },
+	{ BOOT_DEVICE_MMC2, "MMC" },
+	{ BOOT_DEVICE_MMC2_2, "MMC" },
+#endif
+#ifdef CONFIG_SPL_NAND_SUPPORT
+	{ BOOT_DEVICE_NAND, "NAND" },
+#endif
+#ifdef CONFIG_SPL_ONENAND_SUPPORT
+	{ BOOT_DEVICE_ONENAND, "OneNAND" },
+#endif
+#ifdef CONFIG_SPL_NOR_SUPPORT
+	{ BOOT_DEVICE_NOR, "NOR" },
+#endif
+#ifdef CONFIG_SPL_YMODEM_SUPPORT
+	{ BOOT_DEVICE_UART, "UART" },
+#endif
+#ifdef CONFIG_SPL_SPI_SUPPORT
+	{ BOOT_DEVICE_SPI, "SPI" },
+#endif
+#ifdef CONFIG_SPL_ETH_SUPPORT
+#ifdef CONFIG_SPL_ETH_DEVICE
+	{ BOOT_DEVICE_CPGMAC, "eth device" },
+#else
+	{ BOOT_DEVICE_CPGMAC, "net" },
+#endif
+#endif
+#ifdef CONFIG_SPL_USBETH_SUPPORT
+	{ BOOT_DEVICE_USBETH, "USB eth" },
+#endif
+#ifdef CONFIG_SPL_USB_SUPPORT
+	{ BOOT_DEVICE_USB, "USB" },
+#endif
+#ifdef CONFIG_SPL_SATA_SUPPORT
+	{ BOOT_DEVICE_SATA, "SATA" },
+#endif
+	/* Keep this entry last */
+	{ BOOT_DEVICE_NONE, "unknown boot device" },
+};
+
+static void announce_boot_device(u32 boot_device)
+{
+	int i;
+
+	puts("Trying to boot from ");
+
+#ifdef CONFIG_SPL_BOARD_LOAD_IMAGE
+	if (boot_device == BOOT_DEVICE_BOARD) {
+		spl_board_announce_boot_device();
+		puts("\n");
+		return;
+	}
+#endif
+	for (i = 0; i < ARRAY_SIZE(boot_name_table) - 1; i++) {
+		if (boot_name_table[i].boot_dev == boot_device)
+			break;
+	}
+
+	printf("%s\n", boot_name_table[i].name);
+}
+#else
+static inline void announce_boot_device(u32 boot_device) { }
+#endif
+
 #ifndef BOOT_DEVICE_NONE
 #define BOOT_DEVICE_NONE 0xdeadbeef
 #endif
@@ -292,6 +370,7 @@ void board_init_r(gd_t *dummy1, ulong dummy2)
 	board_boot_order(spl_boot_list);
 	for (i = 0; i < ARRAY_SIZE(spl_boot_list) &&
 			spl_boot_list[i] != BOOT_DEVICE_NONE; i++) {
+		announce_boot_device(spl_boot_list[i]);
 		if (!spl_load_image(spl_boot_list[i]))
 			break;
 	}
-- 
1.9.1