Commit graph

4 commits

Author SHA1 Message Date
Patrick Delaunay
067a4c001d ARM: dts: stm32mp1: DDR config v1.44
Update DDR configuration with the latest update:

- PUBL_regs: DXnGCR[0]= according to ddr_width to disable Byte
                        lane 2/3 in 16bit
- fix LPDDR2/3 timing_calc to step RL/WL in relaxed
  timings mode
- remove  LPDDR3 RL3 (optional) support vs  MR0[7]
  because MR0[7] can't be read instead  always apply
  worse RL/WL for LPDDR3 when freq < 166MHz)
- change  MR3 to 48ohm drive  for LPDDR2/3
- change default ZPROG[7:4] = 0x1 for LPDDR2/3 ,
  '0' is not allowed even when ODT not used
- use DQSTRN for LPDDR2/3 (it was not set in PIR)
- LPDDR3: set dqsge/dwsgx gate extension to 2,2
  like LPDDR2
-DDRCTRL.dfitmg0:
  + for LPDDR3 tphy_wrlat = WL (as LPDDR2)
  + improvement for relaxed mode vs  RL/Wl at corner case.
    For example @533MHz RL/WL (relaxed) = 9/5 for LPDDR2/3
    and correction to MR2 accordingly
- DDR_PCFGQOS1_1: port1 timeout relaxed from 0x00 to 0x40,
  for LTDC.
- DDR_PCFGWQOS0_0: change vpr level from
  11 to 12 in order to include the CPU on
  the variable priority queue.
- DDR_SCHED: fix to consider 13 levels  (13 levels - 1 = 0xC)

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-05-23 11:38:10 +02:00
Patrick Delaunay
c60fed14f6 stm32mp1: ram: change ddr speed to kHz
Allow fractional support in DDR tools.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-05-23 11:38:10 +02:00
Tom Rini
4549e789c1 SPDX: Convert all of our multiple license tags to Linux Kernel style
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 multiple licenses (in
these cases, dual license) declared in the SPDX-License-Identifier tag.
In this case we change from listing "LICENSE-A LICENSE-B" or "LICENSE-A
or LICENSE-B" or "(LICENSE-A OR LICENSE-B)" to "LICENSE-A OR LICENSE-B"
as per the Linux Kernel style document.  Note that parenthesis are
allowed so when they were used before we continue to use them.

Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 10:24:31 -04:00
Patrick Delaunay
3d2d115a30 dts: add device tree for STM32MP157C-ED1 board
Add minimal devicetree for STM32MP157C-ED1 board,
with only the devices to allow boot from SDCARD:
- RCC for clock and reset
- UART4 for console
- I2C and PMIC
- DDR
- SDMMC0 for SDCard

Waiting Kernel upstream for alignment.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-19 16:14:22 -04:00