Hi,
here is the 2nd version of the patch against current trunk.
Changes:
- renamed some vars
- JTAGkey is now displayed as "JTAGkey" instead of "4232H"
- and documented in manpage
Signed-off-by: Joerg Fischer <[email protected]>
Index: flashrom.8
===================================================================
--- flashrom.8 (Revision 1109)
+++ flashrom.8 (Arbeitskopie)
@@ -177,11 +177,11 @@
.sp
.BR "* atahpt" " (for flash ROMs on Highpoint ATA/RAID controllers)"
.sp
-.BR "* it87spi" " (for flash ROMs behind an ITE IT87xx Super I/O LPC/SPI\
+.BR "* it87spi" " (for flash ROMs behind an ITE IT87xx Super I/O LPC/SPI \
translation unit)"
.sp
-.BR "* ft2232_spi" " (for SPI flash ROMs attached to a FT2232H/FT4232H based\
-USB SPI programmer)"
+.BR "* ft2232_spi" " (for SPI flash ROMs attached to a FT2232H/FT4232H/JTAGkey
\
+based USB SPI programmer)"
.sp
.BR "* serprog" " (for flash ROMs attached to a programmer speaking serprog)"
.sp
@@ -351,7 +351,7 @@
syntax where
.B model
can be any of
-.BR 2232H ", or " 4232H
+.BR 2232H ", "JTAGkey ", or " 4232H
and
.B interface
can be any of
Index: ft2232_spi.c
===================================================================
--- ft2232_spi.c (Revision 1109)
+++ ft2232_spi.c (Arbeitskopie)
@@ -45,8 +45,31 @@
#define BITMODE_BITBANG_NORMAL 1
#define BITMODE_BITBANG_SPI 2
+ /* Set data bits low-byte command:
+ * value: 0x08 CS=high, DI=low, DO=low, SK=low
+ * dir: 0x0b CS=output, DI=input, DO=output, SK=output
+ *
+ * Jtagkey(2) needs to enable its output via Bit4 / GPIOL0
+ * value: 0x18 OE=high, CS=high, DI=low, DO=low, SK=low
+ * dir: 0x1b OE=output, CS=output, DI=input, DO=output, SK=output
+ *
+ */
+static unsigned char cs_bits = 0x08;
+static unsigned char pindir = 0x0b;
static struct ftdi_context ftdic_context;
+#define AMONTEC_JTAGKEY_PID 0xCFF8
+
+static const char * getFT2232name(int ft2232_type)
+{
+ switch(ft2232_type) {
+ case FTDI_FT2232H: return "2232H";
+ case AMONTEC_JTAGKEY_PID: return "JTAGkey";
+ default: return "4232H";
+ }
+ return "4232H";
+}
+
static int send_buf(struct ftdi_context *ftdic, const unsigned char *buf, int
size)
{
int r;
@@ -86,6 +109,12 @@
ft2232_type = FTDI_FT2232H;
else if (!strcasecmp(arg, "4232H"))
ft2232_type = FTDI_FT4232H;
+ else if (!strcasecmp(arg, "jtagkey")) {
+ ft2232_type = AMONTEC_JTAGKEY_PID;
+ ft2232_interface = INTERFACE_A;
+ cs_bits = 0x18;
+ pindir = 0x1b;
+ }
else {
msg_perr("Error: Invalid device type specified.\n");
free(arg);
@@ -110,7 +139,7 @@
}
free(arg);
msg_pdbg("Using device type %s ",
- (ft2232_type == FTDI_FT2232H) ? "2232H" : "4232H");
+ getFT2232name(ft2232_type));
msg_pdbg("interface %s\n",
(ft2232_interface == INTERFACE_A) ? "A" : "B");
@@ -178,14 +207,9 @@
return -1;
msg_pdbg("Set data bits\n");
- /* Set data bits low-byte command:
- * value: 0x08 CS=high, DI=low, DO=low, SK=low
- * dir: 0x0b CS=output, DI=input, DO=output, SK=output
- */
-#define CS_BIT 0x08
buf[0] = SET_BITS_LOW;
- buf[1] = CS_BIT;
- buf[2] = 0x0b;
+ buf[1] = cs_bits;
+ buf[2] = pindir;
if (send_buf(ftdic, buf, 3))
return -1;
@@ -230,8 +254,8 @@
*/
msg_pspew("Assert CS#\n");
buf[i++] = SET_BITS_LOW;
- buf[i++] = 0 & ~CS_BIT; /* assertive */
- buf[i++] = 0x0b;
+ buf[i++] = 0 & ~cs_bits; /* assertive */
+ buf[i++] = pindir;
if (writecnt) {
buf[i++] = 0x11;
@@ -272,8 +296,8 @@
msg_pspew("De-assert CS#\n");
buf[i++] = SET_BITS_LOW;
- buf[i++] = CS_BIT;
- buf[i++] = 0x0b;
+ buf[i++] = cs_bits;
+ buf[i++] = pindir;
ret = send_buf(ftdic, buf, i);
failed |= ret;
if (ret)
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