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- import os
- import infra.basetest
- class TestMtd(infra.basetest.BRTest):
- config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
- """
- BR2_PACKAGE_MTD=y
- # BR2_TARGET_ROOTFS_TAR is not set
- BR2_TARGET_ROOTFS_CPIO=y
- """
- def test_run(self):
- cpio_file = os.path.join(self.builddir, "images", "rootfs.cpio")
- self.emulator.boot(arch="armv7",
- kernel="builtin",
- options=["-initrd", cpio_file])
- self.emulator.login()
- mtd = "/dev/mtd0"
- erasesize = 256 * 1024
- test_sectors = 4
- test_size = erasesize * test_sectors
- output, exit_code = self.emulator.run(f"mtd_debug info {mtd}")
- output = [x.strip() for x in output if x.strip()]
- self.assertEqual(output, [
- "mtd.type = MTD_NORFLASH",
- "mtd.flags = MTD_CAP_NORFLASH",
- "mtd.size = 134217728 (128M)",
- "mtd.erasesize = 262144 (256K)",
- "mtd.writesize = 1",
- "mtd.oobsize = 0",
- "regions = 0",
- ])
- # Test flashcp
- self.assertRunOk(f"dd if=/dev/urandom of=random.bin bs={test_size} count=1")
- self.assertRunOk(f"flashcp random.bin {mtd}")
- self.assertRunOk(f"cmp -s -n {test_size} random.bin {mtd}")
- # Test flash_erase
- self.assertRunOk(f"dd if=/dev/zero bs={test_size} count=1 | tr '\\000' '\\377' >nor-erase.bin")
- self.assertRunOk(f"flash_erase {mtd} 0 {test_sectors}")
- self.assertRunOk(f"cmp -s -n {test_size} nor-erase.bin {mtd}")
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