path: root/dummyflasher.c
diff options
authorCarl-Daniel Hailfinger <>2009-06-05 18:32:07 +0000
committerCarl-Daniel Hailfinger <>2009-06-05 18:32:07 +0000
commit0bd2a2bdc10720776fe50b96d24d30323ec24c09 (patch)
tree1348763e5fa6f4ea9d13a5b84d63999dcf132749 /dummyflasher.c
parentca8bfc6c22196e5d16c6d2625c65d6b50c04daaf (diff)
Sometimes we want to read/write more than 4 bytes of chip content at once
Add chip_{read,write}n to the external flasher infrastructure which read/write n bytes at once. Fix a few places where the code used memcpy/memcmp although that is strictly impossible with external flashers. Place a FIXME in the layout.c code because usage is not totally clear and needs to be fixed to support external flashers. As a nice side benefit, we get a noticeable speedup for builtin flash reading which is now a memcpy() of the full flash area instead of a series of single-byte reads. Corresponding to flashrom svn r579. Signed-off-by: Carl-Daniel Hailfinger <> Acked-by: Urja Rannikko <> Acked-by: Uwe Hermann <>
Diffstat (limited to 'dummyflasher.c')
1 files changed, 20 insertions, 0 deletions
diff --git a/dummyflasher.c b/dummyflasher.c
index 784cc55..64b083e 100644
--- a/dummyflasher.c
+++ b/dummyflasher.c
@@ -103,6 +103,18 @@ void dummy_chip_writel(uint32_t val, chipaddr addr)
printf_debug("%s: addr=0x%lx, val=0x%08x\n", __func__, addr, val);
+void dummy_chip_writen(uint8_t *buf, chipaddr addr, size_t len)
+ size_t i;
+ printf_debug("%s: addr=0x%lx, len=0x%08lx, writing data (hex):",
+ __func__, addr, (unsigned long)len);
+ for (i = 0; i < len; i++) {
+ if ((i % 16) == 0)
+ printf_debug("\n");
+ printf_debug("%02x ", buf[i])
+ }
uint8_t dummy_chip_readb(const chipaddr addr)
printf_debug("%s: addr=0x%lx, returning 0xff\n", __func__, addr);
@@ -121,6 +133,14 @@ uint32_t dummy_chip_readl(const chipaddr addr)
return 0xffffffff;
+void dummy_chip_readn(uint8_t *buf, const chipaddr addr, size_t len)
+ printf_debug("%s: addr=0x%lx, len=0x%lx, returning array of 0xff\n",
+ __func__, addr, (unsigned long)len);
+ memset(buf, 0xff, len);
+ return;
int dummy_spi_command(unsigned int writecnt, unsigned int readcnt,
const unsigned char *writearr, unsigned char *readarr)
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