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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Commands to deal with Synology specifics.
- *
- * Copyright (C) 2015 Phil Sutter <phil@nwl.cc>
- */
- #include <common.h>
- #include <command.h>
- #include <div64.h>
- #include <env.h>
- #include <net.h>
- #include <spi.h>
- #include <spi_flash.h>
- #include <linux/mtd/mtd.h>
- #include <asm/io.h>
- #include "../drivers/ddr/marvell/axp/ddr3_init.h"
- #define ETHADDR_MAX 4
- #define SYNO_SN_TAG "SN="
- #define SYNO_CHKSUM_TAG "CHK="
- static int do_syno_populate(int argc, char *const argv[])
- {
- unsigned int bus = CONFIG_SF_DEFAULT_BUS;
- unsigned int cs = CONFIG_SF_DEFAULT_CS;
- unsigned int speed = CONFIG_SF_DEFAULT_SPEED;
- unsigned int mode = CONFIG_SF_DEFAULT_MODE;
- struct spi_flash *flash;
- unsigned long addr = 0x80000; /* XXX: parameterize this? */
- loff_t offset = 0x007d0000;
- loff_t len = 0x00010000;
- char *buf, *bufp;
- char var[128];
- char val[128];
- int ret, n;
- /* XXX: arg parsing to select flash here? */
- flash = spi_flash_probe(bus, cs, speed, mode);
- if (!flash) {
- printf("Failed to initialize SPI flash at %u:%u\n", bus, cs);
- return 1;
- }
- buf = map_physmem(addr, len, MAP_WRBACK);
- if (!buf) {
- puts("Failed to map physical memory\n");
- return 1;
- }
- ret = spi_flash_read(flash, offset, len, buf);
- if (ret) {
- puts("Failed to read from SPI flash\n");
- goto out_unmap;
- }
- for (n = 0; n < ETHADDR_MAX; n++) {
- char ethaddr[ETH_ALEN];
- int i, sum = 0;
- unsigned char csum = 0;
- for (i = 0, bufp = buf + n * 7; i < ETH_ALEN; i++) {
- sum += bufp[i];
- csum += bufp[i];
- ethaddr[i] = bufp[i];
- }
- if (!sum) /* MAC address empty */
- continue;
- if (csum != bufp[i]) { /* seventh byte is checksum value */
- printf("Invalid MAC address for interface %d!\n", n);
- continue;
- }
- if (n == 0)
- sprintf(var, "ethaddr");
- else
- sprintf(var, "eth%daddr", n);
- snprintf(val, sizeof(val) - 1,
- "%02x:%02x:%02x:%02x:%02x:%02x",
- ethaddr[0], ethaddr[1], ethaddr[2],
- ethaddr[3], ethaddr[4], ethaddr[5]);
- printf("parsed %s = %s\n", var, val);
- env_set(var, val);
- }
- if (!strncmp(buf + 32, SYNO_SN_TAG, strlen(SYNO_SN_TAG))) {
- char *snp, *csump;
- int csum = 0;
- unsigned long c;
- snp = bufp = buf + 32 + strlen(SYNO_SN_TAG);
- for (n = 0; bufp[n] && bufp[n] != ','; n++)
- csum += bufp[n];
- bufp[n] = '\0';
- /* should come right after, but you never know */
- bufp = strstr(bufp + n + 1, SYNO_CHKSUM_TAG);
- if (!bufp) {
- printf("Serial number checksum tag missing!\n");
- goto out_unmap;
- }
- csump = bufp += strlen(SYNO_CHKSUM_TAG);
- for (n = 0; bufp[n] && bufp[n] != ','; n++)
- ;
- bufp[n] = '\0';
- if (strict_strtoul(csump, 10, &c) || c != csum) {
- puts("Invalid serial number found!\n");
- ret = 1;
- goto out_unmap;
- }
- printf("parsed SN = %s\n", snp);
- env_set("SN", snp);
- } else { /* old style format */
- unsigned char csum = 0;
- for (n = 0, bufp = buf + 32; n < 10; n++)
- csum += bufp[n];
- if (csum != bufp[n]) {
- puts("Invalid serial number found!\n");
- ret = 1;
- goto out_unmap;
- }
- bufp[n] = '\0';
- printf("parsed SN = %s\n", buf + 32);
- env_set("SN", buf + 32);
- }
- out_unmap:
- unmap_physmem(buf, len);
- return ret;
- }
- /* map bit position to function in POWER_MNG_CTRL_REG */
- static const char * const pwr_mng_bit_func[] = {
- "audio",
- "ge3", "ge2", "ge1", "ge0",
- "pcie00", "pcie01", "pcie02", "pcie03",
- "pcie10", "pcie11", "pcie12", "pcie13",
- "bp",
- "sata0_link", "sata0_core",
- "lcd",
- "sdio",
- "usb0", "usb1", "usb2",
- "idma", "xor0", "crypto",
- NULL,
- "tdm",
- "pcie20", "pcie30",
- "xor1",
- "sata1_link", "sata1_core",
- NULL,
- };
- static int do_syno_clk_gate(int argc, char *const argv[])
- {
- u32 pwr_mng_ctrl_reg = reg_read(POWER_MNG_CTRL_REG);
- const char *func, *state;
- int i, val;
- if (argc < 2)
- return -1;
- if (!strcmp(argv[1], "get")) {
- puts("Clock Gating:\n");
- for (i = 0; i < 32; i++) {
- func = pwr_mng_bit_func[i];
- if (!func)
- continue;
- state = pwr_mng_ctrl_reg & (1 << i) ? "ON" : "OFF";
- printf("%s:\t\t%s\n", func, state);
- }
- return 0;
- }
- if (argc < 4)
- return -1;
- if (!strcmp(argv[1], "set")) {
- func = argv[2];
- state = argv[3];
- for (i = 0; i < 32; i++) {
- if (!pwr_mng_bit_func[i])
- continue;
- if (!strcmp(func, pwr_mng_bit_func[i]))
- break;
- }
- if (i == 32) {
- printf("Error: name '%s' not known\n", func);
- return -1;
- }
- val = state[0] != '0';
- pwr_mng_ctrl_reg |= (val << i);
- pwr_mng_ctrl_reg &= ~(!val << i);
- reg_write(POWER_MNG_CTRL_REG, pwr_mng_ctrl_reg);
- }
- return 0;
- }
- static int do_syno(struct cmd_tbl *cmdtp, int flag, int argc,
- char *const argv[])
- {
- const char *cmd;
- int ret = 0;
- if (argc < 2)
- goto usage;
- cmd = argv[1];
- --argc;
- ++argv;
- if (!strcmp(cmd, "populate_env"))
- ret = do_syno_populate(argc, argv);
- else if (!strcmp(cmd, "clk_gate"))
- ret = do_syno_clk_gate(argc, argv);
- if (ret != -1)
- return ret;
- usage:
- return CMD_RET_USAGE;
- }
- U_BOOT_CMD(
- syno, 5, 1, do_syno,
- "Synology specific commands",
- "populate_env - Read vendor data from SPI flash into environment\n"
- "clk_gate (get|set name 1|0) - Manage clock gating\n"
- );
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