[PATCH v3 03/12] rockchip: doc: add BootROM mode text

Add text that explains how to get into BootROM mode.

Signed-off-by: Johan Jonker <[email protected]>
---

Changed V3:
remove MaskROM
reword connect
use eMMC
wrap
---
 doc/board/rockchip/rockchip.rst | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/doc/board/rockchip/rockchip.rst b/doc/board/rockchip/rockchip.rst
index 5144cbccef78..fab1af73b22a 100644
--- a/doc/board/rockchip/rockchip.rst
+++ b/doc/board/rockchip/rockchip.rst
@@ -325,6 +325,22 @@ To build rk3588 boards:
         make evb-rk3588_defconfig
         make CROSS_COMPILE=aarch64-linux-gnu-

+BootROM 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, eMMC 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: connect the clock line to ground while
+  reconnecting to the USB OTG port to a PC.
+
 Flashing
 --------

--
2.39.5