Function set_spi_frequency

util/ifdtool/ifdtool.c:1283–1300

}

static void set_spi_frequency(const char *filename, char *image, int size,
			      enum spi_frequency freq)
{
	struct fcba *fcba = find_fcba(image, size);
	if (!fcba)
		exit(EXIT_FAILURE);

	/* clear bits 21-29 */
	fcba->flcomp &= ~0x3fe00000;
	/* Read ID and Read Status Clock Frequency */
	fcba->flcomp |= freq << 27;
	/* Write and Erase Clock Frequency */
	fcba->flcomp |= freq << 24;
	/* Fast Read Clock Frequency */
	fcba->flcomp |= freq << 21;

	write_image(filename, image, size);
}

static void set_em100_mode(const char *filename, char *image, int size)
{