diff options
| author | Philippe Mathieu-Daudé <philmd@redhat.com> | 2019-06-27 19:45:08 +0200 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <philmd@redhat.com> | 2019-07-02 02:34:55 +0200 |
| commit | 3ae0343db69c379beb5750b4ed70794bbed51b85 (patch) | |
| tree | 90ceb3b37df2625398d44e35c9369ee076e14c9e /hw/block/pflash_cfi02.c | |
| parent | b03499371785cd9a0d8157ec8bd1c19a2bf8b5c7 (diff) | |
hw/block/pflash_cfi02: Reduce I/O accesses to 16-bit
Parallel NOR flashes are limited to 16-bit bus accesses.
Remove the 32-bit dead code.
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190627202719.17739-29-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Diffstat (limited to 'hw/block/pflash_cfi02.c')
| -rw-r--r-- | hw/block/pflash_cfi02.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/hw/block/pflash_cfi02.c b/hw/block/pflash_cfi02.c index 83084b9d72..5392290c72 100644 --- a/hw/block/pflash_cfi02.c +++ b/hw/block/pflash_cfi02.c @@ -317,8 +317,6 @@ static uint64_t pflash_read(void *opaque, hwaddr offset, unsigned int width) boff = offset & 0xFF; if (pfl->width == 2) { boff = boff >> 1; - } else if (pfl->width == 4) { - boff = boff >> 2; } switch (pfl->cmd) { default: @@ -449,8 +447,6 @@ static void pflash_write(void *opaque, hwaddr offset, uint64_t value, boff = offset; if (pfl->width == 2) { boff = boff >> 1; - } else if (pfl->width == 4) { - boff = boff >> 2; } /* Only the least-significant 11 bits are used in most cases. */ boff &= 0x7FF; @@ -710,6 +706,7 @@ static void pflash_write(void *opaque, hwaddr offset, uint64_t value, static const MemoryRegionOps pflash_cfi02_ops = { .read = pflash_read, .write = pflash_write, + .impl.max_access_size = 2, .valid.min_access_size = 1, .valid.max_access_size = 4, .endianness = DEVICE_NATIVE_ENDIAN, |