Fix misplaced comma.

Add code for DDR5 a little. I have no datasheet.

Add LPDDR4X and DDR5. Not decoded yet.

Calculate DDR3's tRAS correctly.

- Define some new parameters of DDR3 SPD ROM.
- Use fine timebase parameters for time calculation on DDR3. This change
makes PC3-XXXX vaule more correctly on newer DDR3.

KNF. No functional change.

Print DDR3's row and column correctly.

Fix spelling of symeti^Hric

Print rank on DDR4.

- Fix DDR4's rows and columns value.
- Print "banks/group" instead of "banks" because it's not the total bank
number.

Print "ECC" or "no ECC" for DDR4.

simplify previous.

dedup

A part number field of DDR3 and DDR4 is not NUL terminated. All unused chars
are filled by 0x20. Print it correctly.

Before:
spdmem0 at iic0 addr 0x50: 8KTF51264AZ-1G6E1 E1M^@,DPAFEQZ021
spdmem1 at

A part number field of DDR3 and DDR4 is not NUL terminated. All unused chars
are filled by 0x20. Print it correctly.

Before:
spdmem0 at iic0 addr 0x50: 8KTF51264AZ-1G6E1 E1M^@,DPAFEQZ021
spdmem1 at iic0 addr 0x51: ACR256X64D3U1333C9BA^AM^X
spdmem2 at iic0 addr 0x52: KP223C-ELD BA^BM-~

After:
spdmem0 at iic0 addr 0x50: 8KTF51264AZ-1G6E1
spdmem1 at iic0 addr 0x51: ACR256X64D3U1333C9
spdmem2 at iic0 addr 0x52: KP223C-ELD

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- Move __DDR4_VALUE()'s comment to the correct position.
- s/ftp/ftb/. No functional change.

fix off by one.

ok riastradh

Add code to select page "0" for DDR4 and newer SPD ROM. If the value read
is not suitable as SPD ROM, try to select page 0 and try again. The passed
arguments of iic_exec(SPDCTL_SPA) might not be cor

Add code to select page "0" for DDR4 and newer SPD ROM. If the value read
is not suitable as SPD ROM, try to select page 0 and try again. The passed
arguments of iic_exec(SPDCTL_SPA) might not be correct and/or our API of
iic_exec() should be improved. See the comment for the detail.

Use this change until we find a better (or correct?) way.

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Check whether iic_exec is failed or not.
- This change fixes a bug that a device that the checksum is really 0 fails
attaching.
- Reduce the number of access to one if a device doesn't exist. Witho

Check whether iic_exec is failed or not.
- This change fixes a bug that a device that the checksum is really 0 fails
attaching.
- Reduce the number of access to one if a device doesn't exist. Without this
change and iic(4) does polling, it'll wait long time.

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- Add DDR4E, LPDDR3 and LPDDR4.
- Check NVDIMM hybrid.
- add DDR4's tWR and tWTR.
- Print cycle time with aprint_verbose on DDR4 as DDR[23].

Update calculations for DDR4 devices. This gets 1066MHz modules to
report as PC4-17000.

XXX Due to insufficient precision in the SPD ROM data, we still report
XXX these modules with a DDR speed of

Update calculations for DDR4 devices. This gets 1066MHz modules to
report as PC4-17000.

XXX Due to insufficient precision in the SPD ROM data, we still report
XXX these modules with a DDR speed of 2132MHz, not 2133. :( (The
XXX cycle time is really 937.5ps, but is stored in the ROM as 938.0ps)

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Bugfixes
- Calculate cycle_time correctly. _ftb is from +127 to -128.
- Print latency in correct order.
- Don't print the size twice.
- KNF

KNF.

Use the DDR4 rows and columns fields when printing DDR4 data

Calculated CRC is for bytes from 0 to 125 on DDR4. Now we can attach spdmem
driver for DDR4.

Print operable voltage with aprint_verbose(). OK'ed by pgoyette@.