This adds a tool suitable for bootstrapping barebox on Rockchip RK3568 SoCs. It has been tested on this SoC only. It might or might not work with minor adjustments on other SoCs.
Signed-off-by: Sascha Hauer <[email protected]> --- scripts/Kconfig | 8 + scripts/Makefile | 3 + scripts/rk-usb-loader.c | 324 ++++++++++++++++++++++++++++++++++++++++ scripts/rkimage.c | 32 +--- scripts/rockchip.h | 35 +++++ 5 files changed, 371 insertions(+), 31 deletions(-) create mode 100644 scripts/rk-usb-loader.c create mode 100644 scripts/rockchip.h diff --git a/scripts/Kconfig b/scripts/Kconfig index 5cba520f4b..5118269c2d 100644 --- a/scripts/Kconfig +++ b/scripts/Kconfig @@ -102,4 +102,12 @@ config OMAP4_HOSTTOOL_USBBOOT You need libusb-1.0 to compile this tool. +config RK_USB_LOADER + bool "Rockchip USB loader" + depends on ARCH_ROCKCHIP || COMPILE_HOST_TOOLS + help + Say Y here to build the rockchip usb loader tool. + + You need libusb-1.0 to compile this tool. + endmenu diff --git a/scripts/Makefile b/scripts/Makefile index 53568573a3..db2168bfab 100644 --- a/scripts/Makefile +++ b/scripts/Makefile @@ -36,6 +36,9 @@ hostprogs-always-$(CONFIG_OMAP3_USB_LOADER) += omap3-usb-loader HOSTCFLAGS_omap4_usbboot.o = `pkg-config --cflags libusb-1.0` HOSTLDLIBS_omap4_usbboot = -lpthread `pkg-config --libs libusb-1.0` hostprogs-always-$(CONFIG_OMAP4_HOSTTOOL_USBBOOT) += omap4_usbboot +HOSTCFLAGS_rk-usb-loader.o = `pkg-config --cflags libusb-1.0` +HOSTLDLIBS_rk-usb-loader = `pkg-config --libs libusb-1.0` +hostprogs-always-$(CONFIG_RK_USB_LOADER) += rk-usb-loader userprogs-always-$(CONFIG_BAREBOXENV_TARGET) += bareboxenv-target userprogs-always-$(CONFIG_KERNEL_INSTALL_TARGET) += kernel-install-target diff --git a/scripts/rk-usb-loader.c b/scripts/rk-usb-loader.c new file mode 100644 index 0000000000..87bc7b94a9 --- /dev/null +++ b/scripts/rk-usb-loader.c @@ -0,0 +1,324 @@ +// SPDX-License-Identifier: GPL-2.0-or-later + +/* + * rk-usb-loader: A tool to USB Bootstrap RK3568 SoCs + * + * This tool bootstraps Rockchip RK3568 SoCs via USB. It currently + * works for this SoC only. It takes the barebox images the barebox + * build process generates as input. The upload protocol has been + * taken from the rkdevelop tool, but it's not a full replacement + * of that tool. + */ +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <stdarg.h> +#include <string.h> +#include <stdbool.h> +#include <unistd.h> +#include <getopt.h> +#include <errno.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <libusb-1.0/libusb.h> + +#include "../common.h" +#include "../common.c" +#include "rockchip.h" + +static void log_error(char *fmt, ...) +{ + va_list va; + + va_start(va, fmt); + fprintf(stdout, "[-] "); + vfprintf(stdout, fmt, va); + va_end(va); +} + +static void log_info(char *fmt, ...) +{ + va_list va; + + va_start(va, fmt); + fprintf(stdout, "[+] "); + vfprintf(stdout, fmt, va); + va_end(va); +} + +static int debug; + +static void log_debug(char *fmt, ...) +{ + va_list va; + + if (!debug) + return; + + va_start(va, fmt); + fprintf(stdout, "[D] "); + vfprintf(stdout, fmt, va); + va_end(va); +} + +static libusb_device_handle *rk_usb_open(libusb_context *ctx, uint16_t vendor, uint16_t product) +{ + libusb_device **devlist; + libusb_device_handle *handle; + struct libusb_device_descriptor desc; + ssize_t count, i; + int ret; + + log_info("scanning for USB device matching %04hx:%04hx...\n", + vendor, product); + + while (1) { + if ((count = libusb_get_device_list(ctx, &devlist)) < 0) { + log_error("failed to gather USB device list: %s\n", + libusb_error_name(count)); + return NULL; + } + + for (i = 0; i < count; i++) { + ret = libusb_get_device_descriptor(devlist[i], &desc); + if (ret < 0) { + log_error("failed to get USB device descriptor: %s\n", + libusb_error_name(ret)); + libusb_free_device_list(devlist, 1); + return NULL; + } + + if (desc.idVendor != vendor) + continue; + + if (product) { + if (desc.idProduct != product) + continue; + goto found; + } + } + + libusb_free_device_list(devlist, 1); + + /* nothing found yet. have a 10ms nap */ + usleep(10000); + } +found: + + ret = libusb_open(devlist[i], &handle); + if (ret < 0) { + log_error("failed to open USB device %04hx:%04hx: %s\n", + vendor, product, libusb_error_name(ret)); + libusb_free_device_list(devlist, 1); + return NULL; + } + + ret = libusb_claim_interface(handle, 0); + if (ret) { + printf("Claim failed\n"); + return NULL; + } + + log_info("successfully opened %04hx:%04hx\n", vendor, product); + + return handle; +} + +#define poly16_CCITT 0x1021 /* crc-ccitt mask */ + +static uint16_t crc_calculate(uint16_t crc, unsigned char ch) +{ + unsigned int i; + + for (i = 0x80; i != 0; i >>= 1) { + if (crc & 0x8000) { + crc <<= 1; + crc ^= poly16_CCITT; + } else { + crc <<= 1; + } + + if (ch & i) + crc ^= poly16_CCITT; + } + return crc; +} + +static uint16_t crc_ccitt(unsigned char *p, int n) +{ + uint16_t crc = 0xffff; + + while (n--) { + crc = crc_calculate(crc, *p); + p++; + } + + return crc; +} + +static int upload(libusb_device_handle *dev, unsigned int dwRequest, void *buf, int n_bytes) +{ + uint16_t crc; + uint8_t *data; + int sent = 0, ret; + + data = calloc(n_bytes + 5, 1); + memcpy(data, buf, n_bytes); + + crc = crc_ccitt(data, n_bytes); + data[n_bytes] = (crc & 0xff00) >> 8; + data[n_bytes + 1] = crc & 0x00ff; + n_bytes += 2; + + while (sent < n_bytes) { + int now; + + if (n_bytes - sent > 4096) + now = 4096; + else + now = n_bytes - sent; + + ret = libusb_control_transfer(dev, 0x40, 0xC, 0, dwRequest, + data + sent, now, 0); + if (ret != now) { + log_error("DeviceRequest 0x%x failed, err=%d", + dwRequest, ret); + + ret = -EIO; + goto err; + } + sent += now; + } + + ret = 0; +err: + free(data); + + return ret; +} + +static int upload_image(const char *filename) +{ + libusb_context *ctx; + libusb_device_handle *dev; + int ret; + void *buf; + struct newidb *hdr; + int i, n_files; + size_t size; + + buf = read_file(filename, &size); + if (!buf) + exit(1); + + hdr = buf; + + if (hdr->magic != NEWIDB_MAGIC) { + log_error("%s has invalid magic 0x%08x ( != 0x%08x )\n", filename, + hdr->magic, NEWIDB_MAGIC); + exit(1); + } + + ret = libusb_init(&ctx); + if (ret < 0) { + log_error("failed to initialize libusb context: %s\n", + libusb_error_name(ret)); + return ret; + } + + dev = rk_usb_open(ctx, 0x2207, 0x350a); + if (!dev) { + libusb_exit(ctx); + return 1; + } + + n_files = hdr->n_files >> 16; + + if (n_files > 2) { + /* + * This tool is designed for barebox images generated with rkimage. + * These have one blob containing the SDRAM setup sent with the + * CODE471_OPTION and one blob containing the barebox image sent with + * the CODE472_OPTION. + */ + log_error("Invalid image with %d blobs\n", n_files); + ret = -EINVAL; + goto err; + } + + for (i = 0; i < n_files; i++) { + struct newidb_entry *entry = &hdr->entries[i]; + int foffset, fsize, wIndex; + + if (i) + wIndex = 0x472; + else + wIndex = 0x471; + + log_info("Uploading %d/%d\n", i + 1, n_files); + + foffset = (entry->sector & 0xffff) * SECTOR_SIZE; + fsize = (entry->sector >> 16) * SECTOR_SIZE; + + log_debug("image starting at offset 0x%08x, size 0x%08x\n", foffset, fsize); + + ret = upload(dev, wIndex, buf + foffset, fsize); + if (ret) + goto err; + } + + ret = 0; +err: + libusb_close(dev); + libusb_exit(ctx); + + return ret; +} + +static void usage(const char *prgname) +{ + printf( +"Usage: %s [OPTIONS] <IMAGE>\n" +"\n" +"Options:\n" +" -d Enable debugging output\n" +" -h This help\n", + prgname); +} + +static struct option cbootcmd[] = { + {"debug", 0, NULL, 'd'}, + {"help", 0, NULL, 'h'}, + {0, 0, 0, 0}, +}; + +int main(int argc, char **argv) +{ + int opt, ret; + const char *filename; + + while ((opt = getopt_long(argc, argv, "hd", cbootcmd, NULL)) > 0) { + switch (opt) { + case 'h': + usage(argv[0]); + exit(0); + case 'd': + debug = 1; + break; + } + } + + if (argc == optind) { + usage(argv[0]); + exit(1); + } + + filename = argv[optind]; + + ret = upload_image(filename); + if (ret) + exit(1); + + exit(0); +} diff --git a/scripts/rkimage.c b/scripts/rkimage.c index be89c1ad34..7262f320eb 100644 --- a/scripts/rkimage.c +++ b/scripts/rkimage.c @@ -15,6 +15,7 @@ #include "../common.h" #include "../common.c" +#include "rockchip.h" #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0])) #define ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1)) @@ -37,37 +38,6 @@ static void sha512(const void *buf, int len, void *out) SHA512_Final(out, &sha512); } -#define NEWIDB_MAGIC 0x534e4b52 /* 'RKNS' */ - -struct newidb_entry { - uint32_t sector; - uint32_t unknown_ffffffff; - uint32_t unknown1; - uint32_t image_number; - unsigned char unknown2[8]; - unsigned char hash[64]; -}; - -struct newidb { - uint32_t magic; - unsigned char unknown1[4]; - uint32_t n_files; - uint32_t hashtype; - unsigned char unknown2[8]; - unsigned char unknown3[8]; - unsigned char unknown4[88]; - struct newidb_entry entries[4]; - unsigned char unknown5[40]; - unsigned char unknown6[512]; - unsigned char unknown7[16]; - unsigned char unknown8[32]; - unsigned char unknown9[464]; - unsigned char hash[512]; -}; - -#define SECTOR_SIZE 512 -#define PAGE_SIZE 2048 - typedef enum { HASH_TYPE_SHA256 = 1, HASH_TYPE_SHA512 = 2, diff --git a/scripts/rockchip.h b/scripts/rockchip.h new file mode 100644 index 0000000000..8cc14f8f2f --- /dev/null +++ b/scripts/rockchip.h @@ -0,0 +1,35 @@ +#ifndef __ROCKCHIP_H +#define __ROCKCHIP_H + +#define NEWIDB_MAGIC 0x534e4b52 /* 'RKNS' */ + +struct newidb_entry { + uint32_t sector; + uint32_t unknown_ffffffff; + uint32_t unknown1; + uint32_t image_number; + unsigned char unknown2[8]; + unsigned char hash[64]; +}; + +struct newidb { + uint32_t magic; + unsigned char unknown1[4]; + uint32_t n_files; + uint32_t hashtype; + unsigned char unknown2[8]; + unsigned char unknown3[8]; + unsigned char unknown4[88]; + struct newidb_entry entries[4]; + unsigned char unknown5[40]; + unsigned char unknown6[512]; + unsigned char unknown7[16]; + unsigned char unknown8[32]; + unsigned char unknown9[464]; + unsigned char hash[512]; +}; + +#define SECTOR_SIZE 512 +#define PAGE_SIZE 2048 + +#endif /* __ROCKCHIP_H */ -- 2.30.2 _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
