Actually this is needed for coming up davinci dm368 cam_enc_4xx board support. There we need two different nand read/write functions, because the RBL uses different nand read/write functions than u-boot.
Another place where such a command is used is: arch/arm/cpu/armv7/omap3/board.c: do_switch_ecc()
Maybe this should be fixed?
Signed-off-by: Heiko Schocher hs@denx.de cc: Scott Wood scottwood@freescale.com --- README | 2 ++ common/cmd_nand.c | 8 ++++++++ include/nand.h | 3 +++ 3 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/README b/README index 1e2d4d3..647e10b 100644 --- a/README +++ b/README @@ -705,6 +705,8 @@ The following options need to be configured: CONFIG_CMD_MII * MII utility commands CONFIG_CMD_MTDPARTS * MTD partition support CONFIG_CMD_NAND * NAND support + CONFIG_CMD_NAND_HWFUNC add to the nand commando a hw specific + subcommand. CONFIG_CMD_NET bootp, tftpboot, rarpboot CONFIG_CMD_PCA953X * PCA953x I2C gpio commands CONFIG_CMD_PCA953X_INFO * PCA953x I2C gpio info command diff --git a/common/cmd_nand.c b/common/cmd_nand.c index 8c56802..416d2c7 100644 --- a/common/cmd_nand.c +++ b/common/cmd_nand.c @@ -689,6 +689,10 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) return 0; } #endif +#ifdef CONFIG_CMD_NAND_HWFUNC + if (strcmp(cmd, "hwfunc") == 0) + return nand_hwfunc(argc - 2, argv + 2); +#endif
usage: return cmd_usage(cmdtp); @@ -739,6 +743,10 @@ U_BOOT_CMD( "nand env.oob set off|partition - set enviromnent offset\n" "nand env.oob get - get environment offset" #endif +#ifdef CONFIG_CMD_NAND_HWFUNC + "\n" + "nand hwfunc " CONFIG_CMD_NAND_HWFUNC "\n" +#endif );
static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand, diff --git a/include/nand.h b/include/nand.h index 8d94b5c..06b86f8 100644 --- a/include/nand.h +++ b/include/nand.h @@ -138,6 +138,9 @@ void board_nand_select_device(struct nand_chip *nand, int chip);
__attribute__((noreturn)) void nand_boot(void);
+#ifdef CONFIG_CMD_NAND_HWFUNC +int nand_hwfunc(int argc, char * const argv[]); +#endif #endif
#ifdef CONFIG_ENV_OFFSET_OOB