Commit graph

5 commits

Author SHA1 Message Date
Patrick Delaunay
888dc68136 board: stm32mp1: add finished good in board identifier OTP
Update the command stboard to support the updated coding of OTP 59 with
finished good.

The ST product codification have several element
- "Commercial Product Name" (CPN): type of product board (DKX, EVX)
  associated to the board ID "MBxxxx"
- "Finished Good" or "Finish Good" (FG):
  effective content of the product without chip STM32MP1 (LCD, Wifi, …)
- BOM: cost variant for same FG
  (for example, several provider of the same component)

For example
- commercial product = STM32MP157C-EV1
- Finished Good = EVA32MP157A1$AU1

Booth information are written on board and these information is also saved
in OTP59:

bit [31:16] (hex) => Board id, MBxxxx
bit [15:12] (dec) => Variant CPN (1....15)
bit [11:8]  (dec) => Revision board (index with A = 1, Z = 26)
bit [7:4]   (dec) => Variant FG : finished good (NEW)
bit [3:0]   (dec) => BOM (01, .... 255)

The updated command is:
  stboard [-y] <Board> <VarCPN> <Revision> <VarFG> <BOM>

And the displayed STMicroelectronics board identification is:
  Board: MB<Board> Var<VarCPN>.<VarFG> Rev.<Revision>-<BOM>

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-03-24 14:14:40 +01:00
Patrick Delaunay
658fde8a36 board: stm32mp1: stboard: lock the OTP after programming
Lock the OTP used for board identification for the ST boards after
programming.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
2020-03-24 14:05:35 +01:00
Patrick Delaunay
fdabacecf0 board: stm32mp1: read OTP in command stboard
Read the value directly from the OTP and no more of the shadows
to avoid the need of reboot after stboard command to have correct value.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
2020-03-24 14:05:35 +01:00
Patrick Delaunay
16aa3e3fdc board: stm32mp1: update command stboard on misc_write result
Update management of misc_write, which now return length of data
after the commit 8729b1ae2c ("misc: Update read() and write()
methods to return bytes xfered")

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
2020-03-24 14:05:35 +01:00
Patrick Delaunay
ba2c20ce7a stm32mp1: move stboard command in board/st/common directory
Move the ST command in board/st/common, as this command is only used
by ST board. Prepare the support in U-Boot of boards with STM32MP15x
SOC but not STMicroelectronics.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-01-17 13:58:27 +01:00
Renamed from board/st/stm32mp1/cmd_stboard.c (Browse further)