On 11/2/23 10:01, Dario Binacchi wrote:
Sean, All,

On Sun, Oct 29, 2023 at 4:48 AM Sean Anderson <sean...@gmail.com> wrote:

This series tests raw nand flash in sandbox and fixes various bugs discovered in
the process. I've tried to do things in a contemporary manner, avoiding the
(numerous) variations present on only a few boards. The test is pretty minimal.
Future work could test the rest of the nand API as well as the MTD API.

Bloat at [1] (for boards with SPL_NAND_SUPPORT enabled). Almost
everything grows by a few bytes due to nand_page_size. A few boards grow more,
mostly those using nand_spl_loaders.c.

[1] https://gist.github.com/Forty-Bot/9694f3401893c9e706ccc374922de6c2


Sean Anderson (15):
   spl: nand: Fix NULL-pointer dereference
   nand: Don't dereference NULL manufacturer_desc
   nand: Calculate SYS_NAND_PAGE_COUNT automatically
   nand: spl_loaders: Only read enough pages to load the image
   spl: legacy: Honor bl_len when decompressing
   spl: nand: Set bl_len to page size
   cmd: nand: Map memory before accessing it
   spl: nand: Map memory before accessing it
   mtd: Rename SPL_MTD_SUPPORT to SPL_MTD
   mtd: Add some fallbacks for add/del_mtd_device
   nand: Add function to unregister NAND devices
   nand: Allow reinitialization
   arch: sandbox: Add function to create temporary files
   nand: Add sandbox driver
   test: spl: Add a test for NAND

  README                                        |   9 +-
  arch/sandbox/cpu/os.c                         |  17 +
  arch/sandbox/dts/test.dts                     |  67 ++
  arch/sandbox/include/asm/spl.h                |   1 +
  cmd/nand.c                                    |  26 +-
  common/spl/Kconfig                            |   2 +-
  common/spl/spl_legacy.c                       |  18 +-
  common/spl/spl_nand.c                         |  22 +-
  configs/am335x_baltos_defconfig               |   3 +-
  configs/am335x_evm_defconfig                  |   3 +-
  configs/am335x_evm_spiboot_defconfig          |   2 +-
  configs/am335x_guardian_defconfig             |   1 -
  configs/am335x_hs_evm_defconfig               |   2 +-
  configs/am335x_hs_evm_uart_defconfig          |   2 +-
  configs/am335x_igep003x_defconfig             |   3 +-
  configs/am335x_sl50_defconfig                 |   2 +-
  configs/am3517_evm_defconfig                  |   3 +-
  configs/am43xx_evm_defconfig                  |   3 +-
  configs/am43xx_evm_rtconly_defconfig          |   3 +-
  configs/am43xx_evm_usbhost_boot_defconfig     |   3 +-
  configs/am43xx_hs_evm_defconfig               |   3 +-
  configs/am62ax_evm_r5_defconfig               |   2 +-
  configs/am65x_evm_a53_defconfig               |   2 +-
  configs/axm_defconfig                         |   1 -
  configs/chiliboard_defconfig                  |   1 -
  configs/cm_t43_defconfig                      |   2 +-
  configs/corvus_defconfig                      |   1 -
  configs/da850evm_nand_defconfig               |   1 -
  configs/devkit3250_defconfig                  |   1 -
  configs/devkit8000_defconfig                  |   1 -
  configs/dra7xx_evm_defconfig                  |   1 -
  configs/draco_defconfig                       |   1 -
  configs/etamin_defconfig                      |   1 -
  .../gardena-smart-gateway-at91sam_defconfig   |   1 -
  configs/igep00x0_defconfig                    |   3 +-
  configs/imx6ulz_smm_m2_defconfig              |   2 +-
  configs/imx8mn_bsh_smm_s2_defconfig           |   2 +-
  configs/j7200_evm_a72_defconfig               |   2 +-
  configs/j7200_evm_r5_defconfig                |   2 +-
  configs/j721e_evm_a72_defconfig               |   2 +-
  configs/j721e_evm_r5_defconfig                |   2 +-
  configs/j721s2_evm_a72_defconfig              |   2 +-
  configs/j721s2_evm_r5_defconfig               |   2 +-
  configs/m53menlo_defconfig                    |   1 -
  configs/omap35_logic_defconfig                |   3 +-
  configs/omap35_logic_somlv_defconfig          |   3 +-
  configs/omap3_beagle_defconfig                |   3 +-
  configs/omap3_evm_defconfig                   |   3 +-
  configs/omap3_logic_defconfig                 |   3 +-
  configs/omap3_logic_somlv_defconfig           |   3 +-
  configs/omapl138_lcdk_defconfig               |   1 -
  configs/phycore-am335x-r2-regor_defconfig     |   3 +-
  configs/phycore-am335x-r2-wega_defconfig      |   3 +-
  configs/pxm2_defconfig                        |   1 -
  configs/rastaban_defconfig                    |   1 -
  configs/rut_defconfig                         |   1 -
  configs/sama5d3_xplained_nandflash_defconfig  |   1 -
  configs/sama5d3xek_nandflash_defconfig        |   1 -
  configs/sama5d4_xplained_nandflash_defconfig  |   1 -
  configs/sama5d4ek_nandflash_defconfig         |   1 -
  configs/sandbox64_defconfig                   |  10 +-
  configs/sandbox_defconfig                     |   9 +
  configs/sandbox_noinst_defconfig              |  21 +-
  configs/smartweb_defconfig                    |   1 -
  configs/socfpga_secu1_defconfig               |   2 +-
  configs/stm32746g-eval_spl_defconfig          |   2 +-
  configs/stm32f746-disco_spl_defconfig         |   2 +-
  configs/stm32f769-disco_spl_defconfig         |   2 +-
  configs/stm32mp15_basic_defconfig             |   2 +-
  configs/stm32mp15_dhcom_basic_defconfig       |   2 +-
  configs/stm32mp15_dhcor_basic_defconfig       |   2 +-
  configs/taurus_defconfig                      |   1 -
  configs/thuban_defconfig                      |   1 -
  drivers/mtd/Makefile                          |   2 +-
  drivers/mtd/nand/raw/Kconfig                  |  27 +-
  drivers/mtd/nand/raw/Makefile                 |   1 +
  drivers/mtd/nand/raw/am335x_spl_bch.c         |   8 +-
  drivers/mtd/nand/raw/atmel_nand.c             |  10 +-
  drivers/mtd/nand/raw/denali_spl.c             |   5 +
  drivers/mtd/nand/raw/fsl_ifc_spl.c            |   8 +
  drivers/mtd/nand/raw/lpc32xx_nand_mlc.c       |   5 +
  drivers/mtd/nand/raw/mt7621_nand_spl.c        |   5 +
  drivers/mtd/nand/raw/mxc_nand_spl.c           |  10 +-
  drivers/mtd/nand/raw/mxs_nand_spl.c           |   5 +
  drivers/mtd/nand/raw/nand.c                   |  66 +-
  drivers/mtd/nand/raw/nand_base.c              |   7 +-
  drivers/mtd/nand/raw/nand_spl_loaders.c       |   5 +-
  drivers/mtd/nand/raw/nand_spl_simple.c        |  10 +-
  drivers/mtd/nand/raw/omap_gpmc.c              |   3 +-
  drivers/mtd/nand/raw/sand_nand.c              | 711 ++++++++++++++++++
  drivers/mtd/nand/raw/sunxi_nand_spl.c         |   8 +-
  drivers/mtd/onenand/onenand_uboot.c           |   2 -
  include/linux/mtd/mtd.h                       |  12 +
  include/mtd/cfi_flash.h                       |   2 +-
  include/nand.h                                |   3 +
  include/os.h                                  |  13 +
  include/system-constants.h                    |   3 +
  test/dm/Makefile                              |   1 +
  test/dm/nand.c                                | 106 +++
  test/image/Kconfig                            |   9 +
  test/image/Makefile                           |   1 +
  test/image/spl_load_nand.c                    |  54 ++
  102 files changed, 1269 insertions(+), 153 deletions(-)
  create mode 100644 drivers/mtd/nand/raw/sand_nand.c
  create mode 100644 test/dm/nand.c
  create mode 100644 test/image/spl_load_nand.c

--
2.37.1


The CI pipeline fails:
https://source.denx.de/u-boot/custodians/u-boot-nand-flash/-/pipelines/18409

It seems like the problem is only for the clang tests (sandbox64 with
clang test.py and sandbox with clang test.py)

I can't view that link. Can you post the error somewhere else?

I saw a clang error [1] when running CI before sending this out, but I thought 
I had fixed it.

--Sean

[1] https://source.denx.de/u-boot/custodians/u-boot-clk/-/pipelines/18355

   sandbox:  +   sandbox
+drivers/mtd/nand/raw/sand_nand.c:386:2: error: variable 'src' is used 
uninitialized whenever switch default is taken 
[-Werror,-Wsometimes-uninitialized]
+        default:
+        ^~~~~~~
+drivers/mtd/nand/raw/sand_nand.c:395:14: note: uninitialized use occurs here
+        memcpy(buf, src + chip->column, to_copy);
+                    ^~~
+drivers/mtd/nand/raw/sand_nand.c:362:6: error: variable 'src' is used 
uninitialized whenever 'if' condition is true 
[-Werror,-Wsometimes-uninitialized]
+        if (!chip->selected)
+            ^~~~~~~~~~~~~~~
+drivers/mtd/nand/raw/sand_nand.c:362:2: note: remove the 'if' if its condition 
is always false
+        ^~~~~~~~~~~~~~~~~~~~
+drivers/mtd/nand/raw/sand_nand.c:360:15: note: initialize the variable 'src' 
to silence this warning
+        const u8 *src;
+                     ^
+                      = NULL
+2 errors generated.
+make[5]: *** [scripts/Makefile.build:256: drivers/mtd/nand/raw/sand_nand.o] 
Error 1
+make[4]: *** [scripts/Makefile.build:397: drivers/mtd/nand/raw] Error 2
+make[3]: *** [scripts/Makefile.build:397: drivers/mtd/nand] Error 2
+make[2]: *** [scripts/Makefile.build:397: drivers/mtd] Error 2
+make[1]: *** [Makefile:1858: drivers] Error 2
+make: *** [Makefile:177: sub-make] Error 2


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