intel/gma: fix RPNFREQ_VAL bitmask
gma.c of Nehalem was copied from Sandy/Ivy Bridge, so fix it there too. Tested on lenovo/x230. Since both the bit that was masked wrongly and the one that wasn't masked, but sould have been, are 0, the behaviour on lenovo/x230 doesn't change. Change-Id: I5f51c4929df83f948fcb7dc06e07ac3cc4ccf4f2 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/22596 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
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@ -488,10 +488,11 @@ static void gma_pm_init_pre_vbios(struct device *dev)
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/* 12: Normal Frequency Request */
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/* RPNFREQ_VAL comes from MCHBAR 0x5998 23:16 (8 bits!? use 7) */
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/* RPNFREQ_VAL comes from MCHBAR 0x5998 23:16 */
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/* only the lower 7 bits are used and shifted left by 25 */
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reg32 = MCHBAR32(0x5998);
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reg32 >>= 16;
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reg32 &= 0xef;
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reg32 &= 0x7f;
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reg32 <<= 25;
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gtt_write(0xa008, reg32);
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@ -498,10 +498,11 @@ static void gma_pm_init_pre_vbios(struct device *dev)
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}
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/* 12: Normal Frequency Request */
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/* RPNFREQ_VAL comes from MCHBAR 0x5998 23:16 (8 bits!? use 7) */
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/* RPNFREQ_VAL comes from MCHBAR 0x5998 23:16 */
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/* only the lower 7 bits are used and shifted left by 25 */
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reg32 = MCHBAR32(0x5998);
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reg32 >>= 16;
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reg32 &= 0xef;
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reg32 &= 0x7f;
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reg32 <<= 25;
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gtt_write(0xa008, reg32);
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