diff options
Diffstat (limited to 'scripts/imx/imx-usb-loader.c')
| -rw-r--r-- | scripts/imx/imx-usb-loader.c | 281 |
1 files changed, 265 insertions, 16 deletions
diff --git a/scripts/imx/imx-usb-loader.c b/scripts/imx/imx-usb-loader.c index 9de7bb3a8a..90ee3e09d5 100644 --- a/scripts/imx/imx-usb-loader.c +++ b/scripts/imx/imx-usb-loader.c @@ -45,6 +45,12 @@ #define FT_DCD 0xee #define FT_LOAD_ONLY 0x00 +/* + * comment from libusb: + * As per the USB 3.0 specs, the current maximum limit for the depth is 7. + */ +#define MAX_USB_PORTS 7 + int verbose; static struct libusb_device_handle *usb_dev_handle; static struct usb_id *usb_id; @@ -63,6 +69,9 @@ struct mach_id { #define HDR_MX53 2 unsigned char header_type; unsigned short max_transfer; +#define DEV_IMX 0 +#define DEV_MXS 1 + unsigned char dev_type; }; struct usb_work { @@ -81,7 +90,9 @@ static const struct mach_id imx_ids[] = { .vid = 0x066f, .pid = 0x3780, .name = "i.MX23", - .mode = MODE_BULK, + .mode = MODE_HID, + .max_transfer = 1024, + .dev_type = DEV_MXS, }, { .vid = 0x15a2, .pid = 0x0030, @@ -114,6 +125,8 @@ static const struct mach_id imx_ids[] = { .vid = 0x15a2, .pid = 0x004f, .name = "i.MX28", + .max_transfer = 1024, + .dev_type = DEV_MXS, }, { .vid = 0x15a2, .pid = 0x0052, @@ -181,6 +194,17 @@ struct sdp_command { uint8_t rsvd; } __attribute__((packed)); +#define MXS_CMD_FW_DOWNLOAD 0x02 +struct mxs_command { + uint32_t sign; /* Signature */ + uint32_t tag; /* Tag */ + uint32_t size; /* Payload size */ + uint8_t flags; /* Flags (host to device) */ + uint8_t rsvd[2]; /* Reserved */ + uint8_t cmd; /* Firmware download */ + uint32_t dw_size; /* Download size */ +} __attribute__((packed)); + static const struct mach_id *imx_device(unsigned short vid, unsigned short pid) { int i; @@ -197,9 +221,66 @@ static const struct mach_id *imx_device(unsigned short vid, unsigned short pid) return NULL; } -static libusb_device *find_imx_dev(libusb_device **devs, const struct mach_id **pp_id) +static int device_location_equal(libusb_device *device, const char *location) +{ + uint8_t port_path[MAX_USB_PORTS]; + uint8_t dev_bus; + int path_step, path_len; + int result = 0; + char *ptr, *loc; + + /* strtok need non const char */ + loc = strdup(location); + + path_len = libusb_get_port_numbers(device, port_path, MAX_USB_PORTS); + if (path_len == LIBUSB_ERROR_OVERFLOW) { + fprintf(stderr, "cannot determine path to usb device! (more than %i ports in path)\n", + MAX_USB_PORTS); + goto done; + } + + ptr = strtok(loc, "-"); + if (ptr == NULL) { + printf("no '-' in path\n"); + goto done; + } + + dev_bus = libusb_get_bus_number(device); + /* check bus mismatch */ + if (atoi(ptr) != dev_bus) + goto done; + + path_step = 0; + while (path_step < MAX_USB_PORTS) { + ptr = strtok(NULL, "."); + + /* no more tokens in path */ + if (ptr == NULL) + break; + + /* path mismatch at some step */ + if (path_step < path_len && atoi(ptr) != port_path[path_step]) + break; + + path_step++; + }; + + /* walked the full path, all elements match */ + if (path_step == path_len) + result = 1; + else + fprintf(stderr, " excluded by device path option\n"); + +done: + free(loc); + return result; +} + +static libusb_device *find_imx_dev(libusb_device **devs, const struct mach_id **pp_id, + const char *location) { int i = 0; + int err; const struct mach_id *p; for (;;) { @@ -217,10 +298,24 @@ static libusb_device *find_imx_dev(libusb_device **devs, const struct mach_id ** } p = imx_device(desc.idVendor, desc.idProduct); - if (p) { - *pp_id = p; - return dev; + if (!p) + continue; + + err = libusb_open(dev, &usb_dev_handle); + if (err) { + fprintf(stderr, "Could not open device vid=0x%x pid=0x%x err=%d\n", + p->vid, p->pid, err); + continue; + } + + if (location && !device_location_equal(dev, location)) { + libusb_close(usb_dev_handle); + usb_dev_handle = NULL; + continue; } + + *pp_id = p; + return dev; } *pp_id = NULL; @@ -798,6 +893,98 @@ static int do_dcd_v2_cmd_write(const unsigned char *dcd) return 0; } +static int do_dcd_v2_cmd_check(const unsigned char *dcd) +{ + uint32_t mask; + uint32_t poll_count = 0; + int bytes; + enum imx_dcd_v2_check_cond cond; + struct imx_dcd_v2_check *check = (struct imx_dcd_v2_check *) dcd; + switch (ntohs(check->length)) { + case 12: + /* poll indefinitely */ + poll_count = 0xffffffff; + break; + case 16: + poll_count = ntohl(check->count); + if (poll_count == 0) + /* this command behaves as for NOP */ + return 0; + break; + default: + fprintf(stderr, "Error: invalid DCD check length\n"); + return -1; + } + + switch (check->param & 7) { + case 1: + case 2: + case 4: + bytes = check->param & 7; + break; + default: + fprintf(stderr, "Error: invalid DCD check size\n"); + return -1; + } + + switch ((check->param & 0xf8) >> 3) { + case check_all_bits_clear: + case check_all_bits_set: + case check_any_bit_clear: + case check_any_bit_set: + cond = (check->param & 0xf8) >> 3; + break; + default: + fprintf(stderr, "Error: invalid DCD check condition\n"); + return -1; + } + + mask = ntohl(check->mask); + + fprintf(stderr, "DCD check condition %i on address 0x%x\n", + cond, ntohl(check->addr)); + /* Reduce the poll count to some arbitrary practical limit. + Polling via SRP commands will be much slower compared to + polling when DCD is interpreted by the SOC microcode. + */ + if (poll_count > 1000) + poll_count = 1000; + + while (poll_count > 0) { + uint32_t data = 0; + int ret = read_memory(ntohl(check->addr), &data, bytes); + if (ret < 0) + return ret; + + data &= mask; + + switch (cond) { + case check_all_bits_clear: + if (data != 0) + return 0; + break; + case check_all_bits_set: + if (data != mask) + return 0; + break; + case check_any_bit_clear: + if (data == mask) + return 0; + break; + case check_any_bit_set: + if (data == 0) + return 0; + break; + } + poll_count--; + } + + fprintf(stderr, "Error: timeout waiting for DCD check condition %i " + "on address 0x%08x to match 0x%08x\n", cond, + ntohl(check->addr), ntohl(check->mask)); + return -1; +} + static int process_dcd_table_ivt(const struct imx_flash_header_v2 *hdr, const unsigned char *file_start, unsigned cnt) { @@ -850,8 +1037,7 @@ static int process_dcd_table_ivt(const struct imx_flash_header_v2 *hdr, ret = do_dcd_v2_cmd_write(dcd); break; case TAG_CHECK: - fprintf(stderr, "DCD check not implemented yet\n"); - usleep(50000); + ret = do_dcd_v2_cmd_check(dcd); break; case TAG_UNLOCK: fprintf(stderr, "DCD unlock not implemented yet\n"); @@ -1273,6 +1459,66 @@ static int write_mem(const struct config_data *data, uint32_t addr, return modify_memory(addr, val, width, set_bits, clear_bits); } +/* MXS section */ +static int mxs_load_file(libusb_device_handle *dev, uint8_t *data, int size) +{ + static struct mxs_command dl_command; + int last_trans, err; + void *p; + int cnt; + + dl_command.sign = htonl(0x424c5443); /* Signature: BLTC */ + dl_command.tag = htonl(0x1); + dl_command.size = htonl(size); + dl_command.flags = 0; + dl_command.rsvd[0] = 0; + dl_command.rsvd[1] = 0; + dl_command.cmd = MXS_CMD_FW_DOWNLOAD; + dl_command.dw_size = htonl(size); + + err = transfer(1, (unsigned char *) &dl_command, 20, &last_trans); + if (err) { + printf("transfer error at init step: err=%i, last_trans=%i\n", + err, last_trans); + return err; + } + + p = data; + cnt = size; + + while (1) { + int now = get_min(cnt, usb_id->mach_id->max_transfer); + + if (!now) + break; + + err = transfer(2, p, now, &now); + if (err) { + printf("dl_command err=%i, last_trans=%i\n", err, now); + return err; + } + + p += now; + cnt -= now; + } + + return err; +} + +static int mxs_work(struct usb_work *curr) +{ + unsigned fsize = 0; + unsigned char *buf = NULL; + int ret; + + ret = read_file(curr->filename, &buf, &fsize); + if (ret < 0) + return ret; + + return mxs_load_file(usb_dev_handle, buf, fsize); +} +/* end of mxs section */ + static int parse_initfile(const char *filename) { struct config_data data = { @@ -1287,6 +1533,7 @@ static void usage(const char *prgname) fprintf(stderr, "usage: %s [OPTIONS] [FILENAME]\n\n" "-c check correctness of flashed image\n" "-i <cfgfile> Specify custom SoC initialization file\n" + "-p <devpath> Specify device path: <bus>-<port>[.<port>]...\n" "-s skip DCD included in image\n" "-v verbose (give multiple times to increase)\n" "-h this help\n", prgname); @@ -1307,10 +1554,11 @@ int main(int argc, char *argv[]) struct usb_work w = {}; int opt; char *initfile = NULL; + char *devpath = NULL; w.do_dcd_once = 1; - while ((opt = getopt(argc, argv, "cvhi:s")) != -1) { + while ((opt = getopt(argc, argv, "cvhi:p:s")) != -1) { switch (opt) { case 'c': verify = 1; @@ -1323,6 +1571,9 @@ int main(int argc, char *argv[]) case 'i': initfile = optarg; break; + case 'p': + devpath = optarg; + break; case 's': w.do_dcd_once = 0; break; @@ -1350,19 +1601,12 @@ int main(int argc, char *argv[]) goto out; } - dev = find_imx_dev(devs, &mach); + dev = find_imx_dev(devs, &mach, devpath); if (!dev) { fprintf(stderr, "no supported device found\n"); goto out; } - err = libusb_open(dev, &usb_dev_handle); - if (err) { - fprintf(stderr, "Could not open device vid=0x%x pid=0x%x err=%d\n", - mach->vid, mach->pid, err); - goto out; - } - libusb_free_device_list(devs, 1); libusb_get_configuration(usb_dev_handle, &config); @@ -1384,6 +1628,11 @@ int main(int argc, char *argv[]) usb_id->mach_id = mach; + if (mach->dev_type == DEV_MXS) { + ret = mxs_work(&w); + goto out; + } + err = do_status(); if (err) { printf("status failed\n"); |