From 3b4f87735d093463e3b227a07a62996fc0b47b53 Mon Sep 17 00:00:00 2001
From: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Date: Fri, 29 Sep 2017 19:27:55 +0200
Subject: [PATCH] rockchip: bootrom: add definitions to retrieve BROM
boot-source
The Rockchip BROM allows reading where it booted from from SRAM.
This adds the necessary definitions (as received from Kever) for
the location of this information in the RK3399's SRAM and naming
for the constants used.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
arch/arm/include/asm/arch-rockchip/bootrom.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/arch/arm/include/asm/arch-rockchip/bootrom.h b/arch/arm/include/asm/arch-rockchip/bootrom.h
index 92eb8783a3..169cc5e50b 100644
--- a/arch/arm/include/asm/arch-rockchip/bootrom.h
+++ b/arch/arm/include/asm/arch-rockchip/bootrom.h
@@ -24,4 +24,22 @@ void back_to_bootrom(void);
*/
void _back_to_bootrom_s(void);
+/**
+ * Boot-device identifiers as used by the BROM
+ */
+enum {
+ BROM_BOOTSOURCE_NAND = 1,
+ BROM_BOOTSOURCE_EMMC = 2,
+ BROM_BOOTSOURCE_SPINOR = 3,
+ BROM_BOOTSOURCE_SPINAND = 4,
+ BROM_BOOTSOURCE_SD = 5,
+ BROM_BOOTSOURCE_USB = 10,
+ BROM_LAST_BOOTSOURCE = BROM_BOOTSOURCE_USB
+};
+
+/**
+ * Locations of the boot-device identifier in SRAM
+ */
+#define RK3399_BROM_BOOTSOURCE_ID_ADDR 0xff8c0010
+
#endif
--
2.39.5