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author | Reza Arbab <arbab@linux.vnet.ibm.com> | 2017-06-02 09:52:51 -0500 |
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committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2017-06-06 20:49:05 +1000 |
commit | 2163407ccceabf859959f3b641f6a169d5229807 (patch) | |
tree | 855632a14ff05a6385b4dbb4e062dda463da1534 /include | |
parent | c5fa0d718e9cda8999dcb83088118a7ea61814c5 (diff) | |
download | skiboot-2163407ccceabf859959f3b641f6a169d5229807.zip skiboot-2163407ccceabf859959f3b641f6a169d5229807.tar.gz skiboot-2163407ccceabf859959f3b641f6a169d5229807.tar.bz2 |
npu2: Fix npu2_{read,write}_4b()
When writing or reading 4-byte values, we need to use the upper half of
the 64-bit SCOM register.
Fix npu2_{read,write}_4b() and their callers to use uint32_t, and
appropriately shift the value being written or returned.
Signed-off-by: Reza Arbab <arbab@linux.vnet.ibm.com>
Acked-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Diffstat (limited to 'include')
-rw-r--r-- | include/npu2.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/npu2.h b/include/npu2.h index d15b2c9..6476c72 100644 --- a/include/npu2.h +++ b/include/npu2.h @@ -139,8 +139,8 @@ static inline struct npu2 *phb_to_npu2(struct phb *phb) return container_of(phb, struct npu2, phb); } -void npu2_write_4b(struct npu2 *p, uint64_t reg, uint64_t val); -uint64_t npu2_read_4b(struct npu2 *p, uint64_t reg); +void npu2_write_4b(struct npu2 *p, uint64_t reg, uint32_t val); +uint32_t npu2_read_4b(struct npu2 *p, uint64_t reg); void npu2_write(struct npu2 *p, uint64_t reg, uint64_t val); uint64_t npu2_read(struct npu2 *p, uint64_t reg); void npu2_write_mask(struct npu2 *p, uint64_t reg, uint64_t val, uint64_t mask); |