3a4bcfca2f
1. add cvitek folders to u-boot-2021.10 2. add cv183x/cv182x part 3. add cv181x/cv180x part Change-Id: I6dc2e5ff509dbab16bd60bfb3fd61852da5e01f6
711 lines
17 KiB
C
711 lines
17 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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#include <common.h>
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#include <command.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <malloc.h>
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#include <mmio.h>
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#include <cvi_efuse.h>
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#define EFUSE_DEBUG 0
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#define _cc_trace(fmt, ...) __trace("", __FILE__, __func__, __LINE__, fmt, ##__VA_ARGS__)
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#define _cc_error(fmt, ...) __trace("ERROR:", __FILE__, __func__, __LINE__, fmt, ##__VA_ARGS__)
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#define ERROR(fmt, ...) __trace("ERROR:", __FILE__, __func__, __LINE__, fmt, ##__VA_ARGS__)
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#if EFUSE_DEBUG
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#define VERBOSE(fmt, ...) __trace("VERBOSE:", __FILE__, __func__, __LINE__, fmt, ##__VA_ARGS__)
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static int __trace(const char *prefix, const char *path, const char *func, int lineno, const char *fmt, ...)
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{
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va_list ap;
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int ret;
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printf("[%s%s:%s:%d] ", prefix, path, func, lineno);
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if (!fmt || fmt[0] == '\0') {
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ret = printf("\n");
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} else {
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va_start(ap, fmt);
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ret = vprintf(fmt, ap);
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va_end(ap);
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}
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return ret;
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}
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#else
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#define VERBOSE(fmt, ...)
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static int __trace(const char *prefix, const char *path, const char *func, int lineno, const char *fmt, ...)
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{
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return 0;
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}
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#endif
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static int hex2bytes(const char *hex, unsigned char *buf, int buf_size)
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{
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int i, total = 0;
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char tmp[3];
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memset(buf, 0, buf_size);
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for (i = 0; i < buf_size; i++) {
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if (!hex[0] || !hex[1])
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break;
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tmp[0] = hex[0];
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tmp[1] = hex[1];
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tmp[2] = '\0';
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buf[i] = simple_strtoul(tmp, NULL, 16);
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hex += 2;
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total += 1;
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}
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return total;
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}
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// ===========================================================================
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// EFUSE implementation
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// ===========================================================================
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#define EFUSE_SHADOW_REG (EFUSE_BASE + 0x100)
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#define EFUSE_SIZE 0x100
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#define EFUSE_MODE (EFUSE_BASE + 0x0)
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#define EFUSE_ADR (EFUSE_BASE + 0x4)
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#define EFUSE_DIR_CMD (EFUSE_BASE + 0x8)
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#define EFUSE_RD_DATA (EFUSE_BASE + 0xC)
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#define EFUSE_STATUS (EFUSE_BASE + 0x10)
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#define EFUSE_ONE_WAY (EFUSE_BASE + 0x14)
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#define EFUSE_BIT_AREAD BIT(0)
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#define EFUSE_BIT_MREAD BIT(1)
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#define EFUSE_BIT_PRG BIT(2)
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#define EFUSE_BIT_PWR_DN BIT(3)
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#define EFUSE_BIT_CMD BIT(4)
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#define EFUSE_BIT_BUSY BIT(0)
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#define EFUSE_CMD_REFRESH (0x30)
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enum EFUSE_READ_TYPE { EFUSE_AREAD, EFUSE_MREAD };
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static void cvi_efuse_wait_for_ready(void)
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{
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while (mmio_read_32(EFUSE_STATUS) & EFUSE_BIT_BUSY)
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;
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}
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static void cvi_efuse_power_on(uint32_t on)
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{
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if (on)
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mmio_setbits_32(EFUSE_MODE, EFUSE_BIT_CMD);
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else
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mmio_setbits_32(EFUSE_MODE, EFUSE_BIT_PWR_DN | EFUSE_BIT_CMD);
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}
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static void cvi_efuse_refresh(void)
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{
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mmio_write_32(EFUSE_MODE, EFUSE_CMD_REFRESH);
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}
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static void cvi_efuse_prog_bit(uint32_t word_addr, uint32_t bit_addr, uint32_t high_row)
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{
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uint32_t phy_addr;
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// word_addr: virtual addr, take "lower 6-bits" from 7-bits (0-127)
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// bit_addr: virtual addr, 5-bits (0-31)
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// composite physical addr[11:0] = [11:7]bit_addr + [6:0]word_addr
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phy_addr = ((bit_addr & 0x1F) << 7) | ((word_addr & 0x3F) << 1) | high_row;
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cvi_efuse_wait_for_ready();
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// send efuse program cmd
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mmio_write_32(EFUSE_ADR, phy_addr);
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mmio_write_32(EFUSE_MODE, EFUSE_BIT_PRG | EFUSE_BIT_CMD);
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}
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static uint32_t cvi_efuse_read_from_phy(uint32_t phy_word_addr, enum EFUSE_READ_TYPE type)
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{
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// power on efuse macro
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cvi_efuse_power_on(1);
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cvi_efuse_wait_for_ready();
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mmio_write_32(EFUSE_ADR, phy_word_addr);
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if (type == EFUSE_AREAD) // array read
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mmio_write_32(EFUSE_MODE, EFUSE_BIT_AREAD | EFUSE_BIT_CMD);
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else if (type == EFUSE_MREAD) // margin read
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mmio_write_32(EFUSE_MODE, EFUSE_BIT_MREAD | EFUSE_BIT_CMD);
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else {
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ERROR("EFUSE: Unsupported read type!");
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return (uint32_t)-1;
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}
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cvi_efuse_wait_for_ready();
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return mmio_read_32(EFUSE_RD_DATA);
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}
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static int cvi_efuse_write_word(uint32_t vir_word_addr, uint32_t val)
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{
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uint32_t i, j, row_val, zero_bit;
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uint32_t new_value;
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int err_cnt = 0;
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for (j = 0; j < 2; j++) {
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VERBOSE("EFUSE: Program physical word addr #%d\n", (vir_word_addr << 1) | j);
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// array read by word address
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row_val = cvi_efuse_read_from_phy((vir_word_addr << 1) | j,
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EFUSE_AREAD); // read low word of word_addr
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zero_bit = val & (~row_val); // only program zero bit
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// program row which bit is zero
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for (i = 0; i < 32; i++) {
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if ((zero_bit >> i) & 1)
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cvi_efuse_prog_bit(vir_word_addr, i, j);
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}
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// check by margin read
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new_value = cvi_efuse_read_from_phy((vir_word_addr << 1) | j, EFUSE_MREAD);
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VERBOSE("%s(): val=0x%x new_value=0x%x\n", __func__, val, new_value);
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if ((val & new_value) != val) {
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err_cnt += 1;
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ERROR("EFUSE: Program bits check failed (%d)!\n", err_cnt);
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}
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}
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cvi_efuse_refresh();
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return err_cnt >= 2 ? -EIO : 0;
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}
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static void cvi_efuse_init(void)
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{
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// power on efuse macro
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cvi_efuse_power_on(1);
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// send refresh cmd to reload all eFuse values to shadow registers
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cvi_efuse_refresh();
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// efuse macro will be auto powered off after refresh cmd, so don't
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// need to turn it off manually
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}
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void cvi_efuse_dump(uint32_t vir_word_addr)
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{
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uint32_t j, val;
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for (j = 0; j < 2; j++) {
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// check by margin read
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val = cvi_efuse_read_from_phy((vir_word_addr << 1) | j, EFUSE_MREAD);
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printf("EFUSE EFUSE_MREAD: Program bits %d check 0x%x\n", j, val);
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val = cvi_efuse_read_from_phy((vir_word_addr << 1) | j, EFUSE_AREAD);
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printf("EFUSE EFUSE_AREAD: Program bits %d check 0x%x\n", j, val);
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}
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}
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int64_t cvi_efuse_read_from_shadow(uint32_t addr)
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{
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if (addr >= EFUSE_SIZE)
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return -EFAULT;
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if (addr % 4 != 0)
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return -EFAULT;
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return mmio_read_32(EFUSE_SHADOW_REG + addr);
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}
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int cvi_efuse_write(uint32_t addr, uint32_t value)
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{
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int ret;
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VERBOSE("%s(): 0x%x = 0x%x\n", __func__, addr, value);
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if (addr >= EFUSE_SIZE)
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return -EFAULT;
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if (addr % 4 != 0)
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return -EFAULT;
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ret = cvi_efuse_write_word(addr / 4, value);
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VERBOSE("%s(): ret=%d\n", __func__, ret);
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cvi_efuse_init();
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cvi_efuse_wait_for_ready();
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return ret;
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}
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// ===========================================================================
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// EFUSE API
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// ===========================================================================
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enum CVI_EFUSE_LOCK_WRITE_E {
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CVI_EFUSE_LOCK_WRITE_HASH0_PUBLIC = CVI_EFUSE_OTHERS + 1,
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CVI_EFUSE_LOCK_WRITE_LOADER_EK,
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CVI_EFUSE_LOCK_WRITE_DEVICE_EK,
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CVI_EFUSE_LOCK_WRITE_LAST
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};
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static struct _CVI_EFUSE_AREA_S {
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CVI_U32 addr;
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CVI_U32 size;
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} cvi_efuse_area[] = { [CVI_EFUSE_AREA_USER] = { 0x40, 40 },
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[CVI_EFUSE_AREA_DEVICE_ID] = { 0x8c, 8 },
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[CVI_EFUSE_AREA_HASH0_PUBLIC] = { 0xA8, 32 },
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[CVI_EFUSE_AREA_LOADER_EK] = { 0xD8, 16 },
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[CVI_EFUSE_AREA_DEVICE_EK] = { 0xE8, 16 } };
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static struct _CVI_EFUSE_LOCK_S {
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CVI_S32 wlock_shift;
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CVI_S32 rlock_shift;
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} cvi_efuse_lock[] = { [CVI_EFUSE_LOCK_HASH0_PUBLIC] = { 0, 8 }, [CVI_EFUSE_LOCK_LOADER_EK] = { 4, 12 },
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[CVI_EFUSE_LOCK_DEVICE_EK] = { 6, 14 }, [CVI_EFUSE_LOCK_WRITE_HASH0_PUBLIC] = { 0, -1 },
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[CVI_EFUSE_LOCK_WRITE_LOADER_EK] = { 4, -1 }, [CVI_EFUSE_LOCK_WRITE_DEVICE_EK] = { 6, -1 } };
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static struct _CVI_EFUSE_USER_S {
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CVI_U32 addr;
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CVI_U32 size;
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} cvi_efuse_user[] = {
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{ 0x40, 4 }, { 0x48, 4 }, { 0x50, 4 }, { 0x58, 4 }, { 0x60, 4 },
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{ 0x68, 4 }, { 0x70, 4 }, { 0x78, 4 }, { 0x80, 4 }, { 0x88, 4 },
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};
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#define CVI_EFUSE_TOTAL_SIZE 0x100
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#define CVI_EFUSE_LOCK_ADDR 0xF8
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#define CVI_EFUSE_SECURE_CONF_ADDR 0xA0
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#define CVI_EFUSE_SCS_ENABLE_SHIFT 0
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CVI_S32 CVI_EFUSE_GetSize(enum CVI_EFUSE_AREA_E area, CVI_U32 *size)
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{
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if (area >= ARRAY_SIZE(cvi_efuse_area) || cvi_efuse_area[area].size == 0) {
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_cc_error("area (%d) is not found\n", area);
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return CVI_ERR_EFUSE_INVALID_AREA;
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}
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if (size)
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*size = cvi_efuse_area[area].size;
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return 0;
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}
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CVI_S32 _CVI_EFUSE_Read(CVI_U32 addr, void *buf, CVI_U32 buf_size)
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{
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int64_t ret = -1;
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int i;
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VERBOSE("%s(): 0x%x(%u) to %p\n", __func__, addr, buf_size, buf);
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if (!buf)
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return CVI_ERR_EFUSE_INVALID_PARA;
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if (buf_size > EFUSE_SIZE)
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buf_size = EFUSE_SIZE;
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for (i = 0; i < buf_size; i += 4) {
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ret = cvi_efuse_read_from_shadow(addr + i);
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VERBOSE("%s(): i=%x ret=%lx\n", __func__, i, ret);
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if (ret < 0)
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return ret;
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*(uint32_t *)(buf + i) = (ret >= 0) ? ret : 0;
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}
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return 0;
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}
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static CVI_S32 _CVI_EFUSE_Write(CVI_U32 addr, const void *buf, CVI_U32 buf_size)
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{
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_cc_trace("addr=0x%02x\n", addr);
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int ret = -1;
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CVI_U32 value;
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int i;
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if (!buf)
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return CVI_ERR_EFUSE_INVALID_PARA;
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for (i = 0; i < buf_size; i += 4) {
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memcpy(&value, buf + i, sizeof(value));
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_cc_trace("smc call: 0x%02x=0x%08x\n", addr + i, value);
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ret = cvi_efuse_write(addr + i, value);
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if (ret < 0) {
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printf("%s: error (%d)\n", __func__, ret);
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return ret;
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}
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}
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return 0;
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}
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CVI_S32 CVI_EFUSE_Read(enum CVI_EFUSE_AREA_E area, CVI_U8 *buf, CVI_U32 buf_size)
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{
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CVI_U32 user_size = cvi_efuse_area[CVI_EFUSE_AREA_USER].size;
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CVI_U8 user[user_size], *p;
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CVI_S32 ret;
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int i;
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if (area >= ARRAY_SIZE(cvi_efuse_area) || cvi_efuse_area[area].size == 0) {
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_cc_error("area (%d) is not found\n", area);
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return CVI_ERR_EFUSE_INVALID_AREA;
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}
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if (!buf)
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return CVI_ERR_EFUSE_INVALID_PARA;
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memset(buf, 0, buf_size);
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if (buf_size > cvi_efuse_area[area].size)
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buf_size = cvi_efuse_area[area].size;
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if (area != CVI_EFUSE_AREA_USER)
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return _CVI_EFUSE_Read(cvi_efuse_area[area].addr, buf, buf_size);
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memset(user, 0, user_size);
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p = user;
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for (i = 0; i < ARRAY_SIZE(cvi_efuse_user); i++) {
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ret = _CVI_EFUSE_Read(cvi_efuse_user[i].addr, p, cvi_efuse_user[i].size);
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if (ret < 0)
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return ret;
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p += cvi_efuse_user[i].size;
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}
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memcpy(buf, user, buf_size);
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return CVI_SUCCESS;
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}
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CVI_S32 CVI_EFUSE_Write(enum CVI_EFUSE_AREA_E area, const CVI_U8 *buf, CVI_U32 buf_size)
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{
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CVI_U32 user_size = cvi_efuse_area[CVI_EFUSE_AREA_USER].size;
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CVI_U8 user[user_size], *p;
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CVI_S32 ret;
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int i;
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if (area >= ARRAY_SIZE(cvi_efuse_area) || cvi_efuse_area[area].size == 0) {
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_cc_error("area (%d) is not found\n", area);
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return CVI_ERR_EFUSE_INVALID_AREA;
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}
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if (!buf)
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return CVI_ERR_EFUSE_INVALID_PARA;
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if (buf_size > cvi_efuse_area[area].size)
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buf_size = cvi_efuse_area[area].size;
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if (area != CVI_EFUSE_AREA_USER)
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return _CVI_EFUSE_Write(cvi_efuse_area[area].addr, buf, buf_size);
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memset(user, 0, user_size);
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memcpy(user, buf, buf_size);
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p = user;
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for (i = 0; i < ARRAY_SIZE(cvi_efuse_user); i++) {
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ret = _CVI_EFUSE_Write(cvi_efuse_user[i].addr, p, cvi_efuse_user[i].size);
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if (ret < 0)
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return ret;
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p += cvi_efuse_user[i].size;
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}
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return CVI_SUCCESS;
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}
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CVI_S32 CVI_EFUSE_EnableSecureBoot(void)
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{
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CVI_U32 value = 0x3 << CVI_EFUSE_SCS_ENABLE_SHIFT;
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return _CVI_EFUSE_Write(CVI_EFUSE_SECURE_CONF_ADDR, &value, sizeof(value));
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}
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CVI_S32 CVI_EFUSE_IsSecureBootEnabled(void)
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{
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CVI_U32 value = 0;
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CVI_S32 ret = 0;
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ret = _CVI_EFUSE_Read(CVI_EFUSE_SECURE_CONF_ADDR, &value, sizeof(value));
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_cc_trace("ret=%d value=%u\n", ret, value);
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if (ret < 0)
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return ret;
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value &= 0x3 << CVI_EFUSE_SCS_ENABLE_SHIFT;
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return !!value;
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}
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CVI_S32 CVI_EFUSE_Lock(enum CVI_EFUSE_LOCK_E lock)
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{
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CVI_U32 value = 0;
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CVI_U32 ret = 0;
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if (lock >= ARRAY_SIZE(cvi_efuse_lock)) {
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_cc_error("lock (%d) is not found\n", lock);
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return CVI_ERR_EFUSE_INVALID_AREA;
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}
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value = 0x3 << cvi_efuse_lock[lock].wlock_shift;
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ret = _CVI_EFUSE_Write(CVI_EFUSE_LOCK_ADDR, &value, sizeof(value));
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if (ret < 0)
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return ret;
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if (cvi_efuse_lock[lock].rlock_shift >= 0) {
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value = 0x3 << cvi_efuse_lock[lock].rlock_shift;
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ret = _CVI_EFUSE_Write(CVI_EFUSE_LOCK_ADDR, &value, sizeof(value));
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}
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return ret;
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}
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CVI_S32 CVI_EFUSE_IsLocked(enum CVI_EFUSE_LOCK_E lock)
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{
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CVI_S32 ret = 0;
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CVI_U32 value = 0;
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if (lock >= ARRAY_SIZE(cvi_efuse_lock)) {
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_cc_error("lock (%d) is not found\n", lock);
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return CVI_ERR_EFUSE_INVALID_AREA;
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}
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|
|
ret = _CVI_EFUSE_Read(CVI_EFUSE_LOCK_ADDR, &value, sizeof(value));
|
|
_cc_trace("ret=%d value=%u\n", ret, value);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
value &= 0x3 << cvi_efuse_lock[lock].wlock_shift;
|
|
return !!value;
|
|
}
|
|
|
|
CVI_S32 CVI_EFUSE_LockWrite(enum CVI_EFUSE_LOCK_E lock)
|
|
{
|
|
CVI_U32 value = 0;
|
|
CVI_S32 ret = 0;
|
|
|
|
if (lock >= ARRAY_SIZE(cvi_efuse_lock)) {
|
|
_cc_error("lock (%d) is not found\n", lock);
|
|
return CVI_ERR_EFUSE_INVALID_AREA;
|
|
}
|
|
|
|
value = 0x3 << cvi_efuse_lock[lock].wlock_shift;
|
|
ret = _CVI_EFUSE_Write(CVI_EFUSE_LOCK_ADDR, &value, sizeof(value));
|
|
return ret;
|
|
}
|
|
|
|
CVI_S32 CVI_EFUSE_IsWriteLocked(enum CVI_EFUSE_LOCK_E lock)
|
|
{
|
|
CVI_S32 ret = 0;
|
|
CVI_U32 value = 0;
|
|
|
|
if (lock >= ARRAY_SIZE(cvi_efuse_lock)) {
|
|
_cc_error("lock (%d) is not found\n", lock);
|
|
return CVI_ERR_EFUSE_INVALID_AREA;
|
|
}
|
|
|
|
ret = _CVI_EFUSE_Read(CVI_EFUSE_LOCK_ADDR, &value, sizeof(value));
|
|
_cc_trace("ret=%d value=%u\n", ret, value);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
value &= 0x3 << cvi_efuse_lock[lock].wlock_shift;
|
|
return !!value;
|
|
}
|
|
|
|
static const char *const efuse_index[] = {
|
|
[CVI_EFUSE_AREA_USER] = "USER",
|
|
[CVI_EFUSE_AREA_DEVICE_ID] = "DEVICE_ID",
|
|
[CVI_EFUSE_AREA_HASH0_PUBLIC] = "HASH0_PUBLIC",
|
|
[CVI_EFUSE_AREA_LOADER_EK] = "LOADER_EK",
|
|
[CVI_EFUSE_AREA_DEVICE_EK] = "DEVICE_EK",
|
|
[CVI_EFUSE_LOCK_HASH0_PUBLIC] = "LOCK_HASH0_PUBLIC",
|
|
[CVI_EFUSE_LOCK_LOADER_EK] = "LOCK_LOADER_EK",
|
|
[CVI_EFUSE_LOCK_DEVICE_EK] = "LOCK_DEVICE_EK",
|
|
[CVI_EFUSE_LOCK_WRITE_HASH0_PUBLIC] = "LOCK_WRITE_HASH0_PUBLIC",
|
|
[CVI_EFUSE_LOCK_WRITE_LOADER_EK] = "LOCK_WRITE_LOADER_EK",
|
|
[CVI_EFUSE_LOCK_WRITE_DEVICE_EK] = "LOCK_WRITE_DEVICE_EK",
|
|
[CVI_EFUSE_SECUREBOOT] = "SECUREBOOT",
|
|
};
|
|
|
|
static int find_efuse_by_name(const char *name)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(efuse_index); i++) {
|
|
if (!efuse_index[i])
|
|
continue;
|
|
|
|
if (!strcmp(name, efuse_index[i]))
|
|
return i;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int do_efuser(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
|
|
{
|
|
int idx;
|
|
int ret;
|
|
unsigned int size;
|
|
unsigned char buf[128];
|
|
|
|
if (argc != 2)
|
|
return CMD_RET_USAGE;
|
|
|
|
_cc_trace("Read eFuse: %s\n", argv[1]);
|
|
idx = find_efuse_by_name(argv[1]);
|
|
if (idx < 0)
|
|
return CMD_RET_USAGE;
|
|
|
|
_cc_trace("idx=%d %s\n", idx, efuse_index[idx]);
|
|
|
|
if (idx < CVI_EFUSE_AREA_LAST) {
|
|
if (CVI_EFUSE_GetSize(idx, &size) < 0)
|
|
return CMD_RET_FAILURE;
|
|
|
|
_cc_trace("size=%d\n", size);
|
|
|
|
if (CVI_EFUSE_Read(idx, buf, size) < 0)
|
|
return CMD_RET_FAILURE;
|
|
|
|
print_buffer(0, buf, 1, size, 0);
|
|
return 0;
|
|
} else if (idx < CVI_EFUSE_LOCK_LAST) {
|
|
ret = CVI_EFUSE_IsLocked(idx);
|
|
printf("%s is %s locked\n", efuse_index[idx], ret ? "" : "not");
|
|
return 0;
|
|
} else if (idx < CVI_EFUSE_LOCK_WRITE_LAST) {
|
|
ret = CVI_EFUSE_IsWriteLocked(idx);
|
|
printf("%s is %s write_locked\n", efuse_index[idx], ret ? "" : "not");
|
|
return 0;
|
|
} else if (idx == CVI_EFUSE_SECUREBOOT) {
|
|
ret = CVI_EFUSE_IsSecureBootEnabled();
|
|
printf("Secure Boot is %s\n", ret ? "enabled" : "disabled");
|
|
return 0;
|
|
}
|
|
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
static int do_efusew(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
|
|
{
|
|
int idx;
|
|
int ret;
|
|
unsigned int size;
|
|
unsigned char buf[128] = { 0 };
|
|
|
|
_cc_trace("argc=%d\n", argc);
|
|
|
|
if (argc != 2 && argc != 3)
|
|
return CMD_RET_USAGE;
|
|
|
|
_cc_trace("Write eFuse: %s=%s\n", argv[1], argv[2]);
|
|
idx = find_efuse_by_name(argv[1]);
|
|
if (idx < 0)
|
|
return CMD_RET_USAGE;
|
|
|
|
_cc_trace("idx=%d %s\n", idx, efuse_index[idx]);
|
|
printf("Write eFuse %s(%d) with:\n", efuse_index[idx], idx);
|
|
|
|
if (idx < CVI_EFUSE_AREA_LAST) {
|
|
if (argc != 3)
|
|
return CMD_RET_USAGE;
|
|
|
|
size = hex2bytes(argv[2], buf, sizeof(buf));
|
|
if (size <= 0)
|
|
return CMD_RET_USAGE;
|
|
|
|
print_buffer(0, buf, 1, size, 0);
|
|
|
|
if (CVI_EFUSE_GetSize(idx, &size) < 0)
|
|
return CMD_RET_FAILURE;
|
|
|
|
_cc_trace("size=%d\n", size);
|
|
|
|
ret = CVI_EFUSE_Write(idx, buf, size);
|
|
if (ret < 0) {
|
|
printf("Failed to write %s\n", efuse_index[idx]);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
return 0;
|
|
|
|
} else if (idx < CVI_EFUSE_LOCK_LAST) {
|
|
if (CVI_EFUSE_Lock(idx) < 0) {
|
|
printf("Failed to lock %s\n", efuse_index[idx]);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
printf("%s is locked\n", efuse_index[idx]);
|
|
return 0;
|
|
} else if (idx < CVI_EFUSE_LOCK_WRITE_LAST) {
|
|
if (CVI_EFUSE_LockWrite(idx) < 0) {
|
|
printf("Failed to lock write %s\n", efuse_index[idx]);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
printf("%s is locked\n", efuse_index[idx]);
|
|
return 0;
|
|
|
|
} else if (idx == CVI_EFUSE_SECUREBOOT) {
|
|
ret = CVI_EFUSE_EnableSecureBoot();
|
|
printf("Enabled Secure Boot is %s\n", ret >= 0 ? "success" : "failed");
|
|
return 0;
|
|
}
|
|
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
static int do_efusew_word(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
|
|
{
|
|
uint32_t addr, value;
|
|
int ret = -1;
|
|
|
|
if (argc != 3)
|
|
return CMD_RET_USAGE;
|
|
|
|
addr = simple_strtoul(argv[1], NULL, 0);
|
|
value = simple_strtoul(argv[2], NULL, 0);
|
|
|
|
printf("Write eFuse: 0x%04x=0x%08x\n", addr, value);
|
|
|
|
ret = cvi_efuse_write(addr, value);
|
|
|
|
if (ret < 0) {
|
|
printf("ERROR: ret=%d\n", ret);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int do_efuser_dump(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
|
|
{
|
|
int i;
|
|
uint32_t buf[EFUSE_SIZE / sizeof(uint32_t)];
|
|
|
|
for (i = 0; i < ARRAY_SIZE(buf); i++)
|
|
buf[i] = cvi_efuse_read_from_shadow(i * sizeof(uint32_t));
|
|
|
|
print_buffer(0, buf, 1, sizeof(buf), 16);
|
|
|
|
return 0;
|
|
}
|
|
|
|
U_BOOT_CMD(efuser, 9, 1, do_efuser, "Read efuse",
|
|
"[args..]\n"
|
|
" - args ...");
|
|
|
|
U_BOOT_CMD(efusew, 9, 1, do_efusew, "Write efuse",
|
|
"[args..]\n"
|
|
" - args ...");
|
|
|
|
U_BOOT_CMD(efusew_word, 9, 1, do_efusew_word, "Write word to efuse",
|
|
"efusew_word addr value\n"
|
|
" - args ...");
|
|
|
|
U_BOOT_CMD(efuser_dump, 9, 1, do_efuser_dump, "Read/Dump efuse",
|
|
"do_efuser_dump\n"
|
|
" - args ..."); |