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51b6fe7e66
Amlogic Meson8, Meson8b and Meson8m2 SoCs have a DDR clock controller in the MMCBUS registers. There is no public documentation on this, but the GPL u-boot sources from the Amlogic BSP show that: - it uses the same XTAL input as the main clock controller - it contains a PLL which seems to be implemented just like the other PLLs in this SoC - there is a power-of-two PLL post-divider Add the documentation and header file for this DDR clock controller. Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
5 lines
104 B
C
5 lines
104 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#define DDR_CLKID_DDR_PLL_DCO 0
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#define DDR_CLKID_DDR_PLL 1
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