diff mbox series

[v4,14/15] doc: add README doc for bcmns3 platform

Message ID 20200710085220.32730-15-rayagonda.kokatanur@broadcom.com
State Accepted
Commit 89bb20bd388007451014143c05e21c449b3f5d9e
Headers show
Series add initial support for broadcom NS3 soc | expand

Commit Message

Rayagonda Kokatanur July 10, 2020, 8:52 a.m. UTC 
Add README doc for bcmns3 platform.

Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur at broadcom.com>
---
 doc/README.bcmns3 | 74 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 doc/README.bcmns3

Comments

Simon Glass July 15, 2020, 1:05 a.m. UTC | #1 
On Fri, 10 Jul 2020 at 02:53, Rayagonda Kokatanur
<rayagonda.kokatanur at broadcom.com> wrote:
>
> Add README doc for bcmns3 platform.
>
> Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur at broadcom.com>
> ---
>  doc/README.bcmns3 | 74 +++++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 74 insertions(+)
>  create mode 100644 doc/README.bcmns3

Reviewed-by: Simon Glass <sjg at chromium.org>
diff mbox series

Patch

diff --git a/doc/README.bcmns3 b/doc/README.bcmns3
new file mode 100644
index 0000000000..c51f91471f
--- /dev/null
+++ b/doc/README.bcmns3
@@ -0,0 +1,74 @@ 
+BCMNS3 QSPI memory layout
+=========================
+
+BCMNS3 has total 8MB non-volatile SPI flash memory. It is used to store
+different images like fip.bin, nitro firmware, DDR shmo value and other backup
+images.
+
+Following is the QSPI flash memory layout.
+
+/*         QSPI layout
+ * |---------------------------|->0x000000
+ * |                           |
+ * |                           |
+ * |        fip.bin            |
+ * |         2MB               |
+ * |                           |
+ * ~                           ~
+ * ~                           ~
+ * |                           |
+ * |                           |
+ * |                           |
+ * |---------------------------|->0x200000
+ * |                           |
+ * |                           |
+ * |                           |
+ * |       fip.bin (Mirror)    |
+ * |        2MB                |
+ * ~                           ~
+ * ~                           ~
+ * |                           |
+ * |                           |
+ * |                           |
+ * |---------------------------|->0x400000
+ * |                           |
+ * |      Nitro NS3 Config     |
+ * |          1.5M             |
+ * |                           |
+ * ~                           ~
+ * ~                           ~
+ * |                           |
+ * |---------------------------|->0x580000
+ * |      Nitro NS3 Config     |
+ * |          1.5M             |
+ * |        (Mirror)           |
+ * ~                           ~
+ * ~                           ~
+ * |                           |
+ * |---------------------------|->0x700000
+ * |   Nitro NS3 bspd Config   |
+ * |        64KB               |
+ * ~                           ~
+ * ~                           ~
+ * |                           |
+ * |---------------------------|->0x710000
+ * |   Nitro NS3 bspd Config   |
+ * |        64KB               |
+ * ~       (Mirror)            ~
+ * ~                           ~
+ * |                           |
+ * |---------------------------|->0x720000
+ * |        SHMOO              |
+ * |        64KB               |
+ * |                           |
+ * ~                           ~
+ * ~                           ~
+ * |---------------------------|->0x730000
+ * |        Meta Data          |
+ * |        832KB              |
+ * |                           |
+ * ~                           ~
+ * ~                           ~
+ * |                           |
+ * |---------------------------|
+ */