Hi,

On 05/02/2015 04:26 PM, Ian Campbell wrote:
On Wed, 2015-04-29 at 17:03 +0200, Daniel Kochmański wrote:
This patch adds a20_nandread command. It is simple function utilizing
function from SPL nand driver `nand_spl_load_image`.

Usage: a20_nandread <address> <offset> <bytes>

This stuff should really be integrated with cmd_nand.c rather than
adding an adhoc SoC specific interface.

I want to go even further and I see that this really needs to be integrated
with the blkdev code so that one can just do:

ls nand 0:1

And things will just work, these way we can also just have the standard
boot cmds from config_distro_bootcmd.h work rather then needing special
nand boot commands.

Regards,

Hans





Signed-off-by: Daniel Kochmański <dkochman...@turtle-solutions.eu>
Cc: Ian Campbell <i...@hellion.org.uk>
Cc: Hans De Goede <hdego...@redhat.com>
---

  common/Kconfig            |  7 +++++++
  common/Makefile           |  1 +
  common/cmd_a20_nandread.c | 27 +++++++++++++++++++++++++++
  3 files changed, 35 insertions(+)
  create mode 100644 common/cmd_a20_nandread.c

diff --git a/common/Kconfig b/common/Kconfig
index 5d7e48a..8edabb6 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -204,6 +204,13 @@ config CMD_NAND
        help
          NAND support.

+config CMD_A20_NANDREAD
+       depends on SPL_NAND_SUPPORT
+       bool "a20_nandread"
+       help
+         NAND read support for A20 SoC. Depends on SPL driver.
+         Usage: a20_nandread <address> <offset> <size>
+
  config CMD_SPI
        bool "sspi"
        help
diff --git a/common/Makefile b/common/Makefile
index fba3830..9286518 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -138,6 +138,7 @@ obj-$(CONFIG_CMD_MMC) += cmd_mmc.o
  obj-$(CONFIG_CMD_MMC_SPI) += cmd_mmc_spi.o
  obj-$(CONFIG_MP) += cmd_mp.o
  obj-$(CONFIG_CMD_MTDPARTS) += cmd_mtdparts.o
+obj-$(CONFIG_CMD_A20_NANDREAD) += cmd_a20_nandread.o
  obj-$(CONFIG_CMD_NAND) += cmd_nand.o
  obj-$(CONFIG_CMD_NET) += cmd_net.o
  obj-$(CONFIG_CMD_ONENAND) += cmd_onenand.o
diff --git a/common/cmd_a20_nandread.c b/common/cmd_a20_nandread.c
new file mode 100644
index 0000000..7361be7
--- /dev/null
+++ b/common/cmd_a20_nandread.c
@@ -0,0 +1,27 @@
+#include <common.h>
+#include <command.h>
+
+int nand_spl_load_image(uint32_t offs, unsigned int size, void *dest);
+
+static int do_a20_nandread(cmd_tbl_t *cmdtp, int flag,
+                          int argc, char *const argv[])
+{
+       if (argc != 4) {
+               printf("usage: a20_nandread <address> <offset> <bytes>\n");
+               return 1;
+       }
+
+       uint32_t dst = simple_strtoul(argv[1], NULL, 16);
+       uint32_t src = simple_strtoul(argv[2], NULL, 16);
+       uint32_t cnt = simple_strtoul(argv[3], NULL, 16);
+       printf("Loading 0x%08XB @ 0x%08X -> 0x%08X...\n", cnt, src, dst);
+       nand_spl_load_image(src, cnt, (void *)dst);
+       return 0;
+}
+
+U_BOOT_CMD(
+       a20_nandread,   CONFIG_SYS_MAXARGS,     3,      do_a20_nandread,
+       "a20_nandread",
+       "[offset size bytes]\n"
+       "   "
+);


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