doc: ti: Add switch setting for boot modes on AM62 SK

List some common boot modes and their corresponding switch
settings for AM62 SK.

Signed-off-by: Judith Mendez <jm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

diff --git a/doc/board/ti/am62x_sk.rst b/doc/board/ti/am62x_sk.rst
index b1b7d99..27d7b52 100644 (file)
--- a/doc/board/ti/am62x_sk.rst
+++ b/doc/board/ti/am62x_sk.rst
@@ -229,3 +229,28 @@ Image formats:
                 | |   SPL DTB 1...N   | |
                 | +-------------------+ |
                 +-----------------------+
+
+Switch Setting for Boot Mode
+----------------------------
+
+Boot Mode pins provide means to select the boot mode and options before the
+device is powered up. After every POR, they are the main source to populate
+the Boot Parameter Tables.
+
+The following table shows some common boot modes used on AM62 platform. More
+details can be found in the Technical Reference Manual:
+https://www.ti.com/lit/pdf/spruiv7 under the `Boot Mode Pins` section.
+
+*Boot Modes*
+
+============ ============= =============
+Switch Label SW2: 12345678 SW3: 12345678
+============ ============= =============
+SD           01000000      11000010
+OSPI         00000000      11001110
+EMMC         00000000      11010010
+UART         00000000      11011100
+USB DFU      00000000      11001010
+============ ============= =============
+
+For SW2 and SW1, the switch state in the "ON" position = 1.