There is a hole in shadow registers address map of size 0x100
between bank 5 and bank 6 on iMX6QP, iMX6DQ, iMX6SDL, iMX6SX and iMX6UL.
Bank 5 ends at 0x6F0 and Bank 6 starts at 0x800. When reading the fuses,
we should account for this hole in address space.
Similar hole exists between bank 14 and bank 15 of size
0x80 on iMX6QP, iMX6DQ, iMX6SDL and iMX6SX.
Note: iMX6SL has only 0-7 banks and there is no hole.
Note: iMX6UL doesn't have this one.
When reading, we use register offset, so need to account for holes
to get the correct address.
When writing, we use bank/word index, there is no need to account
for holes, always use bank/word index from fuse map.
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
* Ocotp of i.MX7D has different operation rule.
This patch is to add support for i.MX7D ocotp.
Signed-off-by: Adrian Alonso <aalonso@freescale.com>
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Signed-off-by: Ye.Li <B37916@freescale.com>
Leave the OCOTP turned on, so that we subsequent access do not fail.
After enabling the thermal driver on a mx6sxsabresd board:
U-Boot 2015.01-rc1-18267-g99d4189-dirty (Nov 24 2014 - 12:59:01)
CPU: Freescale i.MX6SX rev1.0 at 792 MHz
CPU: Temperature 48 C
Reset cause: POR
Board: MX6SX SABRE SDB
I2C: ready
DRAM: 1 GiB
PMIC: PFUZE100 ID=0x10
MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
00:01.0 - 16c3:abcd - Bridge device
01:00.0 - 8086:08b1 - Network controller
In: serial
Out: serial
Err: serial
Net:
(hang)
As the thermal driver accesses the ocotp registers, its clock will be disabled
afterwards.
Then when the MAC address is read (also from ocotp registers) it will cause a
hang.
Do not disable the ocotp clock to prevent this problem.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
The Linux-compatible macro DIV_ROUND_CLOSEST is a bit more flexible
and safer than DIV_ROUND.
For example,
foo = DIV_ROUND_CLOSEST(x, y++)
works expectedly, but
foo = DIV_ROUND(x, y++)
does not. (y is incremented twice.)
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
