@@ -518,10 +518,6 @@ static void pflash_write(PFlashCFI01 *pfl, hwaddr offset,
break;
case 0xe8: /* Write to buffer */
trace_pflash_write(pfl->name, "write to buffer");
- /* FIXME should save @offset, @width for case 1+ */
- qemu_log_mask(LOG_UNIMP,
- "%s: Write to buffer emulation is flawed\n",
- __func__);
pfl->status |= 0x80; /* Ready! */
break;
case 0xf0: /* Probe for AMD flash */
@@ -574,7 +570,6 @@ static void pflash_write(PFlashCFI01 *pfl, hwaddr offset,
}
pfl->counter = value;
pfl->wcycle++;
- pflash_blk_write_start(pfl, offset);
break;
case 0x60:
if (cmd == 0xd0) {
@@ -605,6 +600,9 @@ static void pflash_write(PFlashCFI01 *pfl, hwaddr offset,
switch (pfl->cmd) {
case 0xe8: /* Block write */
/* FIXME check @offset, @width */
+ if (pfl->blk_offset == -1 && pfl->counter) {
+ pflash_blk_write_start(pfl, offset);
+ }
if (!pfl->ro && (pfl->blk_offset != -1)) {
pflash_data_write(pfl, offset, value, width, be);
} else {
Move the pflash_blk_write_start() call. We need the offset of the first data write, not the offset for the setup (number-of-bytes) write. Without this fix u-boot can do block writes to the first flash block only. While being at it drop a leftover FIXME. Cc: qemu-stable@nongnu.org Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2343 Fixes: 284a7ee2e290 ("hw/pflash: implement update buffer for block writes") Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> --- hw/block/pflash_cfi01.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-)