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usb: rockchip: implement skeleton for K_FW_GET_CHIP_VER command

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Chip Version is a string saved in BOOTROM address space Little Endian.

Ex for rk3288: 0x33323041 0x32303134 0x30383133 0x56323030
which brings:  320A20140813V200

Note that memory version do invert MSB/LSB so printing the char
buffer would show: A02341023180002V

Signed-off-by: Alberto Panizzo <alberto@amarulasolutions.com>
This commit is contained in:
Alberto Panizzo 2018-07-12 13:05:42 +02:00 committed by Marek Vasut
parent cad66e324d
commit e4b34a7634
2 changed files with 49 additions and 4 deletions
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9
doc/README.rockusb
View File

@ -42,9 +42,12 @@ see doc/README.rockchip for more detail about how to get U-Boot binary.
sudo rkdeveloptool wl 64 <U-Boot binary>
There are plenty of Rockusb command. but wl(write lba) and
rd(reboot) command. These two command can let people flash
image to device.
Current set of rkdeveloptool commands supported:
- rci: Read Chip Info
- rfi: Read Flash Id
- rd : Reset Device
- td : Test Device Ready
- wl : Write blocks using LBA
To do
-----

44
drivers/usb/gadget/f_rockusb.c
View File

@ -523,6 +523,48 @@ static void cb_read_storage_id(struct usb_ep *ep, struct usb_request *req)
rockusb_tx_write_str(emmc_id);
}
int __weak rk_get_bootrom_chip_version(unsigned int *chip_info, int size)
{
return 0;
}
static void cb_get_chip_version(struct usb_ep *ep, struct usb_request *req)
{
ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
sizeof(struct fsg_bulk_cb_wrap));
struct f_rockusb *f_rkusb = get_rkusb();
unsigned int chip_info[4], i;
memset(chip_info, 0, sizeof(chip_info));
rk_get_bootrom_chip_version(chip_info, 4);
/*
* Chip Version is a string saved in BOOTROM address space Little Endian
*
* Ex for rk3288: 0x33323041 0x32303134 0x30383133 0x56323030
* which brings: 320A20140813V200
*
* Note that memory version do invert MSB/LSB so printing the char
* buffer will show: A02341023180002V
*/
printf("read chip version: ");
for (i = 0; i < 4; i++) {
printf("%c%c%c%c",
(chip_info[i] >> 24) & 0xFF,
(chip_info[i] >> 16) & 0xFF,
(chip_info[i] >> 8) & 0xFF,
(chip_info[i] >> 0) & 0xFF);
}
printf("\n");
memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN);
/* Prepare for sending subsequent CSW_GOOD */
f_rkusb->tag = cbw->tag;
f_rkusb->in_req->complete = tx_handler_send_csw;
rockusb_tx_write((char *)chip_info, sizeof(chip_info));
}
static void cb_write_lba(struct usb_ep *ep, struct usb_request *req)
{
ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
@ -661,7 +703,7 @@ static const struct cmd_dispatch_info cmd_dispatch_info[] = {
},
{
.cmd = K_FW_GET_CHIP_VER,
.cb = cb_not_support,
.cb = cb_get_chip_version,
},
{
.cmd = K_FW_LOW_FORMAT,