C++ (Cpp) fuse_read_addr Examples

Example #1

File: imx_otp.c Project: AvalueAES/rev-sa01

/*
 * read one u32 to indexed fuse
 */
int imx_otp_read_one_u32(u32 index, u32 *pdata)
{
	u32 ctrl_reg = 0;
	int ret = 0;

	log("index: 0x%X", index);
	if (index > IMX_OTP_ADDR_MAX) {
		printf("ERROR: invalid address.\n");
		ret = -1;
		goto exit_nop;
	}

	if (otp_clk_enable()) {
		ret = -1;
		printf("ERROR: failed to initialize OTP\n");
		goto exit_nop;
	}

	if (otp_read_prep()) {
		ret = -1;
		printf("ERROR: read preparation failed\n");
		goto exit_cleanup;
	}
	if (fuse_read_addr(index, pdata)) {
		ret = -1;
		printf("ERROR: read failed\n");
		goto exit_cleanup;
	}
	if (otp_read_post()) {
		ret = -1;
		printf("ERROR: read post operation failed\n");
		goto exit_cleanup;
	}

	if (*pdata == IMX_OTP_DATA_ERROR_VAL) {
		ctrl_reg = readl(IMX_OTP_BASE + HW_OCOTP_CTRL);
		if (ctrl_reg & BM_OCOTP_CTRL_ERROR) {
			printf("ERROR: read fuse failed\n");
			ret = -1;
			goto exit_cleanup;
		}
	}

exit_cleanup:
	otp_clk_disable();
exit_nop:
	return ret;
}

Example #2

File: ocotp.c Project: gazoo74/barebox

int imx6_ocotp_read_one_u32(struct ocotp_priv *priv, u32 index, u32 *pdata)
{
	int ret;

	ret = imx6_ocotp_prepare(priv);
	if (ret) {
		dev_err(&priv->dev, "failed to prepare read fuse 0x%08x\n",
				index);
		return ret;
	}

	ret = fuse_read_addr(priv, index, pdata);
	if (ret) {
		dev_err(&priv->dev, "failed to read fuse 0x%08x\n", index);
		return ret;
	}

	return 0;
}