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Sabre-6Quad: Update some comments

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Gregory Nutt
2016-03-31 17:26:33 -06:00
parent 0d3a7f4085
commit 4791b1daf3
1 changed files with 21 additions and 0 deletions
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configs/sabre-6quad/include/board.h
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@@ -59,6 +59,27 @@
* Linux kernel will use the CPU frequency scaling code which will switch the * Linux kernel will use the CPU frequency scaling code which will switch the
* processor frequency between 400 MHz and 1GHz based on load and temperature. * processor frequency between 400 MHz and 1GHz based on load and temperature.
* *
* These are the frequencies reported with U-Boot starts up:
*
* mx6q pll1 : 792MHz
* mx6q pll2 : 528MHz
* mx6q pll3 : 480MHz
* mx6q pll8 : 50MHz
*
* ipg clock : 66000000Hz
* ipg per clock : 66000000Hz
* uart clock : 80000000Hz
* cspi clock : 60000000Hz
* ahb clock : 132000000Hz
* axi clock : 264000000Hz
* emi_slow clock : 29333333Hz
* ddr clock : 528000000Hz
* usdhc1 clock : 198000000Hz
* usdhc2 clock : 198000000Hz
* usdhc3 clock : 198000000Hz
* usdhc4 clock : 198000000Hz
* nfc clock : 24000000Hz
*
* For now, NuttX simply leaves the clocking at 792MHz. * For now, NuttX simply leaves the clocking at 792MHz.
*/ */