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ramips: mt7620: export chip version and pkg

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Similar to the (currently unused) mt7620_get_eco() function, introduce
mt7620_get_chipver() and mt7620_get_pkg() functions to allow rt2x00 to
probe for the type of WiSoC. This is ugly and probably unacceptable
for upstream, however, it should help to evaluate which of those hacks
are actually really needed, enumerate the possible values and label
them in a more meaningful way than currently done in the vendor driver.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle 2017-02-05 15:03:14 +01:00
parent 7fa9794c4c
commit c8778250a9
1 changed files with 19 additions and 0 deletions
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19
target/linux/ramips/patches-4.14/300-mt7620-export-chip-version-and-pkg.patch Normal file
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@ -0,0 +1,19 @@
--- a/arch/mips/include/asm/mach-ralink/mt7620.h
+++ b/arch/mips/include/asm/mach-ralink/mt7620.h
@@ -137,4 +137,16 @@ static inline int mt7620_get_eco(void)
return rt_sysc_r32(SYSC_REG_CHIP_REV) & CHIP_REV_ECO_MASK;
}
+static inline int mt7620_get_chipver(void)
+{
+ return (rt_sysc_r32(SYSC_REG_CHIP_REV) >> CHIP_REV_VER_SHIFT) &
+ CHIP_REV_VER_MASK;
+}
+
+static inline int mt7620_get_pkg(void)
+{
+ return (rt_sysc_r32(SYSC_REG_CHIP_REV) >> CHIP_REV_PKG_SHIFT) &
+ CHIP_REV_PKG_MASK;
+}
+
#endif