Due to the APLL out glitch issue, the APLLCFG PLLS bit must
be set to select SCG1 APLL PFD for generating system clock to align
with the design.
Signed-off-by: Ye Li <ye.li@nxp.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
To support HDMI display on EVK board, the LCDIF pix clock must be
25.2Mhz. Since the its PCC divider range is from 1-8, the max rate
of LCDIF PCC source clock is 201.6Mhz. This limits the source clock
must from NIC1 bus clock or NIC1 clock, other sources from APLL PFDs
are higher than this max rate.
The NIC1 bus clock and NIC1 clock are from DDRCLK whose parent source
is APLL PFD0, so we must change the APLL PFD0 and have impact to DDRCLK,
NIC1 and NIC1 bus.
Eventually, this requests to set the APLL PFD0 frequency to 302.4Mhz
(25.2 * 12), with settings:
PFD0 FRAC: 32
APLL MULT: 22
APLL NUM: 2
APLL DENOM: 5
Signed-off-by: Ye Li <ye.li@nxp.com>
Tested-by: Fancy Fang <chen.fang@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Update LPDDR3 script with the changes below:
-Update the precharge command to CMD=01 at the DDR initialization phase
-remove unimplemented registers
Write data bit delay --refer to the DDR_TRIM bits in
IOMUXC1_DDR_SW_PAD_CTL_PAD_DDRn
Test:
One EVK board passes overnight stress test.
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
For the current APLL setting, as we want the APLL PFD0 to meet DDR clock 320Mhz requirement.
We set MULT to 20, NUM to 4 and DENOM to 2, to get final 22 multiplier. But according to the RM,
the NUM should always be less than the DENOM. So our setting violates the rule.
Actually the ROM has already set the MULT to 22 and leave NUM/DENOM in default value. The calculated APLL PFD0 clock
is 318.9888Mhz, which also meet the DDR requirement.
To fix the issue, we remove the PLL settings in DCD to use default value from ROM, and only set the PFD0 FRAC.
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <trini@konsulko.com>
