return 1;
}
-#if defined(CONFIG_CPU_VARIANT_LINUX)
-
-#ifndef KERNEL_IMAGE_RAM_OFFSET
-#define KERNEL_IMAGE_RAM_OFFSET 0x00000000
-#endif
-#ifndef ROOTFS_IMAGE_RAM_OFFSET
-#define ROOTFS_IMAGE_RAM_OFFSET 0x00800000
-#endif
-#ifndef DEVICE_TREE_IMAGE_RAM_OFFSET
-#define DEVICE_TREE_IMAGE_RAM_OFFSET 0x01000000
-#endif
-#ifndef EMULATOR_IMAGE_RAM_OFFSET
-#define EMULATOR_IMAGE_RAM_OFFSET 0x01100000
-#endif
-
-#endif
-
#ifdef CSR_ETHMAC_BASE
#ifndef LOCALIP1
#define REMOTEIP4 100
#endif
-#define DEFAULT_TFTP_SERVER_PORT 69 /* IANA well known port: UDP/69 */
#ifndef TFTP_SERVER_PORT
-#define TFTP_SERVER_PORT DEFAULT_TFTP_SERVER_PORT
+#define TFTP_SERVER_PORT 69
#endif
-static int tftp_get_v(unsigned int ip, unsigned short server_port,
+static const unsigned char macadr[6] = {0x10, 0xe2, 0xd5, 0x00, 0x00, 0x00};
+
+static int copy_file_from_tftp_to_ram(unsigned int ip, unsigned short server_port,
const char *filename, char *buffer)
{
- int r;
-
- r = tftp_get(ip, server_port, filename, buffer);
- if(r > 0)
- printf("Downloaded %d bytes from %s over TFTP to 0x%08x\n", r, filename, buffer);
- else
- printf("Unable to download %s over TFTP\n", filename);
- return r;
+ int size;
+ printf("Copying %s to 0x%08x... ", filename, buffer);
+ size = tftp_get(ip, server_port, filename, buffer);
+ if(size > 0)
+ printf("(%d bytes)", size);
+ printf("\n");
+ return size;
}
-static const unsigned char macadr[6] = {0x10, 0xe2, 0xd5, 0x00, 0x00, 0x00};
-
-#if defined(CONFIG_CPU_TYPE_MOR1KX) && defined(CONFIG_CPU_VARIANT_LINUX)
-static int try_get_kernel_rootfs_dtb(unsigned int ip, unsigned short tftp_port)
+static void netboot_from_json(const char * filename, unsigned int ip, unsigned short tftp_port)
{
- unsigned long tftp_dst_addr;
int size;
+ uint8_t i;
+ uint8_t count;
- tftp_dst_addr = MAIN_RAM_BASE + KERNEL_IMAGE_RAM_OFFSET;
- size = tftp_get_v(ip, tftp_port, "Image", (void *)tftp_dst_addr);
- if (size <= 0) {
- printf("Network boot failed\n");
- return 0;
- }
+ /* FIXME: modify/increase if too limiting */
+ char json_buffer[256];
+ char image_filename[32];
+ char image_address[32];
+ uint8_t image_found;
- tftp_dst_addr = MAIN_RAM_BASE + DEVICE_TREE_IMAGE_RAM_OFFSET;
- size = tftp_get_v(ip, tftp_port, "mor1kx.dtb", (void *)tftp_dst_addr);
- if(size <= 0) {
- printf("No mor1kx.dtb found\n");
- return 0;
- }
+ /* Read JSON file */
+ size = tftp_get(ip, tftp_port, filename, json_buffer);
+ if (size <= 0)
+ return;
- tftp_dst_addr = MAIN_RAM_BASE + ROOTFS_IMAGE_RAM_OFFSET;
- size = tftp_get_v(ip, tftp_port, "rootfs.cpio", (void *)tftp_dst_addr);
- if(size <= 0) {
- printf("No rootfs.cpio found (optional)\n");
+ /* Parse JSON file */
+ jsmntok_t t[16];
+ jsmn_parser p;
+ jsmn_init(&p);
+ image_found = 0;
+ count = jsmn_parse(&p, json_buffer, strlen(json_buffer), t, sizeof(t)/sizeof(*t));
+ for (i=0; i<count-1; i++) {
+ /* Images are JSON strings with 1 children */
+ if ((t[i].type == JSMN_STRING) && (t[i].size == 1)) {
+ /* Get Image filename */
+ memset(image_filename, 0, sizeof(image_filename));
+ memcpy(image_filename, json_buffer+t[i].start, t[i].end - t[i].start);
+ /* Get Image address */
+ memset(image_address, 0, sizeof(image_address));
+ memcpy(image_address, json_buffer+t[i+1].start, t[i+1].end - t[i+1].start);
+ /* Copy Image from Network to address */
+ size = copy_file_from_tftp_to_ram(ip, tftp_port, image_filename, (void *)strtoul(image_address, NULL, 0));
+ if (size <= 0)
+ return;
+ image_found = 1;
+ }
}
- return 1;
+ /* Boot to last Image address */
+ if (image_found)
+ boot(0, 0, 0, strtoul(image_address, NULL, 0));
}
-#endif
-#if defined(CONFIG_CPU_TYPE_VEXRISCV) && defined(CONFIG_CPU_VARIANT_LINUX)
-static int try_get_kernel_rootfs_dtb_emulator(unsigned int ip, unsigned short tftp_port)
+static void netboot_from_bin(const char * filename, unsigned int ip, unsigned short tftp_port)
{
- unsigned long tftp_dst_addr;
int size;
-
- tftp_dst_addr = MAIN_RAM_BASE + KERNEL_IMAGE_RAM_OFFSET;
- size = tftp_get_v(ip, tftp_port, "Image", (void *)tftp_dst_addr);
- if (size <= 0) {
- printf("Network boot failed\n");
- return 0;
- }
-
- tftp_dst_addr = MAIN_RAM_BASE + ROOTFS_IMAGE_RAM_OFFSET;
- size = tftp_get_v(ip, tftp_port, "rootfs.cpio", (void *)tftp_dst_addr);
- if(size <= 0) {
- printf("No rootfs.cpio found\n");
- return 0;
- }
-
- tftp_dst_addr = MAIN_RAM_BASE + DEVICE_TREE_IMAGE_RAM_OFFSET;
- size = tftp_get_v(ip, tftp_port, "rv32.dtb", (void *)tftp_dst_addr);
- if(size <= 0) {
- printf("No rv32.dtb found\n");
- return 0;
- }
-
- tftp_dst_addr = MAIN_RAM_BASE + EMULATOR_IMAGE_RAM_OFFSET;
- size = tftp_get_v(ip, tftp_port, "emulator.bin", (void *)tftp_dst_addr);
- if(size <= 0) {
- printf("No emulator.bin found\n");
- return 0;
- }
-
- return 1;
+ size = copy_file_from_tftp_to_ram(ip, tftp_port, filename, (void *)MAIN_RAM_BASE);
+ if (size <= 0)
+ return;
+ boot(0, 0, 0, MAIN_RAM_BASE);
}
-#endif
void netboot(void)
{
- int size;
unsigned int ip;
- unsigned long tftp_dst_addr;
- unsigned short tftp_port;
+
printf("Booting from network...\n");
printf("Local IP : %d.%d.%d.%d\n", LOCALIP1, LOCALIP2, LOCALIP3, LOCALIP4);
printf("Remote IP: %d.%d.%d.%d\n", REMOTEIP1, REMOTEIP2, REMOTEIP3, REMOTEIP4);
ip = IPTOINT(REMOTEIP1, REMOTEIP2, REMOTEIP3, REMOTEIP4);
-
udp_start(macadr, IPTOINT(LOCALIP1, LOCALIP2, LOCALIP3, LOCALIP4));
- tftp_port = TFTP_SERVER_PORT;
- printf("Fetching from: UDP/%d\n", tftp_port);
-
-#if defined(CONFIG_CPU_TYPE_VEXRISCV) && defined(CONFIG_CPU_VARIANT_LINUX)
- if(try_get_kernel_rootfs_dtb_emulator(ip, tftp_port))
- {
- boot(0, 0, 0, MAIN_RAM_BASE + EMULATOR_IMAGE_RAM_OFFSET);
- return;
- }
- printf("Unable to download Linux images, falling back to boot.bin\n");
-#endif
-
-#if defined(CONFIG_CPU_TYPE_MOR1KX) && defined(CONFIG_CPU_VARIANT_LINUX)
- if(try_get_kernel_rootfs_dtb(ip, tftp_port))
- {
- boot(MAIN_RAM_BASE + DEVICE_TREE_IMAGE_RAM_OFFSET, 0, 0, MAIN_RAM_BASE);
- return;
- }
- printf("Unable to download Linux images, falling back to boot.bin\n");
-#endif
+ /* Boot from boot.json */
+ printf("Booting from boot.json...\n");
+ netboot_from_json("boot.json", ip, TFTP_SERVER_PORT);
- tftp_dst_addr = MAIN_RAM_BASE;
- size = tftp_get_v(ip, tftp_port, "boot.bin", (void *)tftp_dst_addr);
- if (size <= 0) {
- printf("Network boot failed\n");
- return;
- }
+ /* Boot from boot.bin */
+ printf("Booting from boot.bin...\n");
+ netboot_from_bin("boot.bin", ip, TFTP_SERVER_PORT);
- boot(0, 0, 0, MAIN_RAM_BASE);
+ /* Boot failed if we are here... */
+ printf("Network boot failed.\n");
}
#endif
}
#endif
+#ifndef KERNEL_IMAGE_RAM_OFFSET
+#define KERNEL_IMAGE_RAM_OFFSET 0x00000000
+#endif
+#ifndef ROOTFS_IMAGE_RAM_OFFSET
+#define ROOTFS_IMAGE_RAM_OFFSET 0x00800000
+#endif
+#ifndef DEVICE_TREE_IMAGE_RAM_OFFSET
+#define DEVICE_TREE_IMAGE_RAM_OFFSET 0x01000000
+#endif
+#ifndef EMULATOR_IMAGE_RAM_OFFSET
+#define EMULATOR_IMAGE_RAM_OFFSET 0x01100000
+#endif
+
#ifndef KERNEL_IMAGE_FLASH_OFFSET
#define KERNEL_IMAGE_FLASH_OFFSET 0x00000000 // 0MB
#endif
projects / litex.git / commitdiff