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 <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Urja Rannikko <urjaman@gmail.com>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
diff --git a/internal.c b/internal.c
index d24bb34..302c7a9 100644
--- a/internal.c
+++ b/internal.c
@@ -165,6 +165,12 @@
return mmio_readl((void *) addr);
}
+void internal_chip_readn(uint8_t *buf, const chipaddr addr, size_t len)
+{
+ memcpy(buf, (void *)addr, len);
+ return;
+}
+
void mmio_writeb(uint8_t val, void *addr)
{
*(volatile uint8_t *) addr = val;
@@ -249,3 +255,19 @@
val |= chip_readw(addr + 2) << 16;
return val;
}
+
+void fallback_chip_writen(uint8_t *buf, chipaddr addr, size_t len)
+{
+ size_t i;
+ for (i = 0; i < len; i++)
+ chip_writeb(buf[i], addr + i);
+ return;
+}
+
+void fallback_chip_readn(uint8_t *buf, chipaddr addr, size_t len)
+{
+ size_t i;
+ for (i = 0; i < len; i++)
+ buf[i] = chip_readb(addr + i);
+ return;
+}