[PATCH v2 03/11] rockchip: doc: add BootROM/MaskROM mode text

[Johan Jonker <jbx6244@gmail.com>]

Add text that explains how to get into BootROM/MaskROM mode.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
---
 doc/board/rockchip/rockchip.rst | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/doc/board/rockchip/rockchip.rst b/doc/board/rockchip/rockchip.rst
index 718d5c6f25ba..4ebe20d81324 100644
--- a/doc/board/rockchip/rockchip.rst
+++ b/doc/board/rockchip/rockchip.rst
@@ -325,6 +325,21 @@ To build rk3588 boards:
         make evb-rk3588_defconfig
         make CROSS_COMPILE=aarch64-linux-gnu-

+BootROM/MaskROM mode
+--------------------
+
+Options to get your board into BootROM mode:
+
+* Holding the recovery button when you boot the board.
+* Remove the SD card.
+* Erase the NAND, MMC or SPI chip part where the BootROM blocks are located.
+
+Methods of last resort (USE AT YOUR OWN RISK):
+
+* NAND: connect pin 8 and 9 of the NAND flash with a needle while
+  reconnecting to the USB OTG port to a PC.
+* EMMC: short the clock line to ground while reconnecting to the USB OTG port to a PC.
+
 Flashing
 --------

--
2.39.5