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clk: meson8b: rectify reg offsets with datasheet

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The register offsets in the data sheet are confusing. Document them more
thoroughly.

Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
This commit is contained in:
Michael Turquette 2016-04-28 17:18:52 -07:00
parent 1a695a905c
commit 89ef4b6217
1 changed files with 12 additions and 3 deletions
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15
drivers/clk/meson/meson8b-clkc.c
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@ -24,10 +24,19 @@
#include "clkc.h"
/*
* Clock controller register offsets
*
* Register offsets from the HardKernel[0] data sheet are listed in comment
* blocks below. Those offsets must be multiplied by 4 before adding them to
* the base address to get the right value
*
* [0] http://dn.odroid.com/S805/Datasheet/S805_Datasheet%20V0.8%2020150126.pdf
*/
#define MESON8B_REG_CTL0_ADDR 0x0000
#define MESON8B_REG_SYS_CPU_CNTL1 0x015c
#define MESON8B_REG_HHI_MPEG 0x0174
#define MESON8B_REG_MALI 0x01b0
#define MESON8B_REG_SYS_CPU_CNTL1 0x015c /* 0x57 offset in data sheet */
#define MESON8B_REG_HHI_MPEG 0x0174 /* 0x5d offset in data sheet */
#define MESON8B_REG_MALI 0x01b0 /* 0x6c offset in data sheet */
#define MESON8B_REG_PLL_FIXED 0x0280
#define MESON8B_REG_PLL_SYS 0x0300
#define MESON8B_REG_PLL_VID 0x0320