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Add support for FT232H chips

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FT232H chips are new highspeed devices from FTDI. Basically these are a half of FT2232H (or a quarter of FT4232H), so only one channel which can be used as OpenOCD
interface. The chips are supported by libftdi 0.20 or later and by ftd2xx 2.08.12 or later.

Change-Id: Ic9a2c279167c3419a24f0d6befacbb83c4ffeb25
Signed-off-by: Freddie Chopin <freddie.chopin@gmail.com>
Reviewed-on: http://openocd.zylin.com/736
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-by: Salvador Arroyo <sarroyofdez@yahoo.es>
This commit is contained in:
Freddie Chopin
2012-07-05 12:31:11 +02:00
parent 0900d5a3cd
commit 951d185049
2 changed files with 63 additions and 13 deletions
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34
src/jtag/drivers/ft2232.c
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@@ -114,7 +114,7 @@ enum ftdi_interface {
#endif
/* max TCK for the high speed devices 30000 kHz */
#define FTDI_2232H_4232H_MAX_TCK 30000
#define FTDI_x232H_MAX_TCK 30000
/* max TCK for the full speed devices 6000 kHz */
#define FTDI_2232C_MAX_TCK 6000
/* this speed value tells that RTCK is requested */
@@ -133,9 +133,9 @@ enum ftdi_interface {
#ifndef BUILD_FT2232_HIGHSPEED
#if BUILD_FT2232_FTD2XX == 1
enum { FT_DEVICE_2232H = 6, FT_DEVICE_4232H };
enum { FT_DEVICE_2232H = 6, FT_DEVICE_4232H, FT_DEVICE_232H };
#elif BUILD_FT2232_LIBFTDI == 1
enum { TYPE_2232H = 4, TYPE_4232H = 5 };
enum { TYPE_2232H = 4, TYPE_4232H = 5, TYPE_232H = 6 };
#endif
#endif
@@ -598,19 +598,27 @@ static int ft2232_read(uint8_t *buf, uint32_t size, uint32_t *bytes_read)
static bool ft2232_device_is_highspeed(void)
{
#if BUILD_FT2232_FTD2XX == 1
return (ftdi_device == FT_DEVICE_2232H) || (ftdi_device == FT_DEVICE_4232H);
return (ftdi_device == FT_DEVICE_2232H) || (ftdi_device == FT_DEVICE_4232H)
#ifdef HAS_ENUM_FT232H
|| (ftdi_device == FT_DEVICE_232H)
#endif
;
#elif BUILD_FT2232_LIBFTDI == 1
return (ftdi_device == TYPE_2232H || ftdi_device == TYPE_4232H);
return (ftdi_device == TYPE_2232H || ftdi_device == TYPE_4232H
#ifdef HAS_ENUM_FT232H
|| ftdi_device == TYPE_232H
#endif
);
#endif
}
/*
* Commands that only apply to the FT2232H and FT4232H devices.
* Commands that only apply to the highspeed FTx232H devices (FT2232H, FT4232H, FT232H).
* See chapter 6 in http://www.ftdichip.com/Documents/AppNotes/
* AN_108_Command_Processor_for_MPSSE_and_MCU_Host_Bus_Emulation_Modes.pdf
*/
static int ft2232h_ft4232h_adaptive_clocking(bool enable)
static int ftx232h_adaptive_clocking(bool enable)
{
uint8_t buf = enable ? 0x96 : 0x97;
LOG_DEBUG("%2.2x", buf);
@@ -633,7 +641,7 @@ static int ft2232h_ft4232h_adaptive_clocking(bool enable)
* This result in a JTAG clock speed range of 91.553Hz-6MHz
* respective 457.763Hz-30MHz.
*/
static int ft2232h_ft4232h_clk_divide_by_5(bool enable)
static int ftx232h_clk_divide_by_5(bool enable)
{
uint32_t bytes_written;
uint8_t buf = enable ? 0x8b : 0x8a;
@@ -643,7 +651,7 @@ static int ft2232h_ft4232h_clk_divide_by_5(bool enable)
, enable ? "enable" : "disable");
return ERROR_JTAG_INIT_FAILED;
}
ft2232_max_tck = enable ? FTDI_2232C_MAX_TCK : FTDI_2232H_4232H_MAX_TCK;
ft2232_max_tck = enable ? FTDI_2232C_MAX_TCK : FTDI_x232H_MAX_TCK;
LOG_INFO("max TCK change to: %u kHz", ft2232_max_tck);
return ERROR_OK;
@@ -658,7 +666,7 @@ static int ft2232_speed(int speed)
retval = ERROR_OK;
bool enable_adaptive_clocking = (RTCK_SPEED == speed);
if (ft2232_device_is_highspeed())
retval = ft2232h_ft4232h_adaptive_clocking(enable_adaptive_clocking);
retval = ftx232h_adaptive_clocking(enable_adaptive_clocking);
else if (enable_adaptive_clocking) {
LOG_ERROR("ft2232 device %lu does not support RTCK"
, (long unsigned int)ftdi_device);
@@ -2172,7 +2180,7 @@ static int ft2232_init_ftd2xx(uint16_t vid, uint16_t pid, int more, int *try_mor
return ERROR_JTAG_INIT_FAILED;
} else {
static const char *type_str[] = {
"BM", "AM", "100AX", "UNKNOWN", "2232C", "232R", "2232H", "4232H"
"BM", "AM", "100AX", "UNKNOWN", "2232C", "232R", "2232H", "4232H", "232H"
};
unsigned no_of_known_types = ARRAY_SIZE(type_str) - 1;
unsigned type_index = ((unsigned)ftdi_device <= no_of_known_types)
@@ -2258,7 +2266,7 @@ static int ft2232_init_libftdi(uint16_t vid, uint16_t pid, int more, int *try_mo
ftdi_device = ftdic.type;
static const char *type_str[] = {
"AM", "BM", "2232C", "R", "2232H", "4232H", "Unknown"
"AM", "BM", "2232C", "R", "2232H", "4232H", "232H", "Unknown"
};
unsigned no_of_known_types = ARRAY_SIZE(type_str) - 1;
unsigned type_index = ((unsigned)ftdi_device < no_of_known_types)
@@ -2375,7 +2383,7 @@ static int ft2232_init(void)
#endif
#endif
/* make sure the legacy mode is disabled */
if (ft2232h_ft4232h_clk_divide_by_5(false) != ERROR_OK)
if (ftx232h_clk_divide_by_5(false) != ERROR_OK)
return ERROR_JTAG_INIT_FAILED;
}