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| author | Russell King <rmk+kernel@armlinux.org.uk> | 2016-09-13 20:57:22 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2020-10-12 21:53:17 +0100 |
| commit | 736263d8aa20c99d5f40f129e4c9c28ddb3f95ef (patch) | |
| tree | a09e1d71ba94d6bc41071f4578d1acfe6caa8be9 /Documentation | |
| parent | efc9d25a76cab8e7f30637703fb93d476946451b (diff) | |
ARM: sa1100: switch to accurate MPLL calculation
Switch SA1100 to the more accurate MPLL calculation. Table 8-1 in the
SA1110 developers manual gives two sets of frequencies for two different
crystals - 3.6864MHz and 3.5795MHz. Calculating the multiplication
factor for each entry in the table shows that the clock rates given are
are equal to the crystal frequency multiplied by 4(4 + PPCR), rounded to
100kHz. This equation holds for the higher frequencies up to 280.2MHz
which have been omitted from the later manuals.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions