From patchwork Fri Jul 10 08:52:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rayagonda Kokatanur X-Patchwork-Id: 241262 List-Id: U-Boot discussion From: rayagonda.kokatanur at broadcom.com (Rayagonda Kokatanur) Date: Fri, 10 Jul 2020 14:22:19 +0530 Subject: [PATCH v4 14/15] doc: add README doc for bcmns3 platform In-Reply-To: <20200710085220.32730-1-rayagonda.kokatanur@broadcom.com> References: <20200710085220.32730-1-rayagonda.kokatanur@broadcom.com> Message-ID: <20200710085220.32730-15-rayagonda.kokatanur@broadcom.com> Add README doc for bcmns3 platform. Signed-off-by: Rayagonda Kokatanur Reviewed-by: Simon Glass --- doc/README.bcmns3 | 74 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 doc/README.bcmns3 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 | + * | | + * ~ ~ + * ~ ~ + * | | + * |---------------------------| + */