[U-Boot] [PATCH v1 6/7] board/ti/am43xx: add support for parallel NAND

Tom Rini
2014-07-16T20:14:59Z

On Sat, Jul 05, 2014 at 12:35:16AM +0530, Pekon Gupta wrote:

> This patch adds support for NAND device connected to GPMC chip-select on
> following AM43xx EVM boards.
[snip]
> diff --git a/board/ti/am43xx/mux.c b/board/ti/am43xx/mux.c
> index 50967e1..172adcd 100644
> --- a/board/ti/am43xx/mux.c
> +++ b/board/ti/am43xx/mux.c
[snip]
> @@ -97,12 +128,23 @@ void enable_board_pin_mux(void)
> if (board_is_gpevm()) {
> configure_module_pin_mux(gpio5_7_pin_mux);
> configure_module_pin_mux(rgmii1_pin_mux);
> +#if defined(CONFIG_NAND)
> + configure_module_pin_mux(nand_pin_mux);
> +#endif
> } else if (board_is_sk()) {
> configure_module_pin_mux(rgmii1_pin_mux);
> +#if defined(CONFIG_NAND)
> + pr_err("NAND flash is not present on this board\n");
> +#else
> configure_module_pin_mux(qspi_pin_mux);
> +#endif

No, this breaks EVM-SK booting now in the normal case.

> diff --git a/boards.cfg b/boards.cfg
> index 8e2db82..52aeb7f 100644
> --- a/boards.cfg
> +++ b/boards.cfg
> @@ -274,7 +274,7 @@ Active arm armv7 am33xx ti am335x
> Active arm armv7 am33xx ti am335x am335x_evm_uart4 am335x_evm:SERIAL5,CONS_INDEX=5,NAND Tom Rini <trini@ti.com>
> Active arm armv7 am33xx ti am335x am335x_evm_uart5 am335x_evm:SERIAL6,CONS_INDEX=6,NAND Tom Rini <trini@ti.com>
> Active arm armv7 am33xx ti am335x am335x_evm_usbspl am335x_evm:SERIAL1,CONS_INDEX=1,NAND,SPL_USBETH_SUPPORT Tom Rini <trini@ti.com>
> -Active arm armv7 am33xx ti am43xx am43xx_evm am43xx_evm:SERIAL1,CONS_INDEX=1 Lokesh Vutla <lokeshvutla@ti.com>
> +Active arm armv7 am33xx ti am43xx am43xx_evm am43xx_evm:SERIAL1,CONS_INDEX=1,NAND Lokesh Vutla <lokeshvutla@ti.com>
> Active arm armv7 am33xx ti am43xx am43xx_evm_qspiboot am43xx_evm:SERIAL1,CONS_INDEX=1,QSPI,QSPI_BOOT Lokesh Vutla <lokeshvutla@ti.com>
> Active arm armv7 am33xx ti ti814x ti814x_evm - Matt Porter <matt.porter@linaro.org>
> Active arm armv7 am33xx ti ti816x ti816x_evm - -
I don't like this. We're making the normal build only work on boards
with NAND, and defaulting to NAND being there, which is not the most
common case.

> diff --git a/include/configs/am43xx_evm.h b/include/configs/am43xx_evm.h
> index 974ce98..22c9019 100644
> --- a/include/configs/am43xx_evm.h
> +++ b/include/configs/am43xx_evm.h
[snip]
> +#undef CONFIG_ENV_IS_NOWHERE
> +#define CONFIG_ENV_IS_IN_NAND

NAK. I'd like to see us default to environment being a file in the FAT
filesystem on SD card and specific boot builds going elsewhere
(_qspiboot in QSPI, adding in a _nand build that assumes / requires
NAND, puts env there).

> +/* NAND: SPL related configs */
> +#if defined(CONFIG_SPL_NAND_SUPPORT)
> + /* NAND: SPL falcon mode configs */
> + #ifdef CONFIG_SPL_OS_BOOT
> + #undef CONFIG_SPL_OS_BOOT
> + #define CONFIG_CMD_SPL_NAND_OFS 0x00100000 /* os parameters */
> + #define CONFIG_SYS_NAND_SPL_KERNEL_OFFS 0x00300000 /* kernel offset */
> + #define CONFIG_CMD_SPL_WRITE_SIZE CONFIG_SYS_NAND_BLOCK_SIZE
> + #endif
> +#endif
> +#endif /* !CONFIG_NAND */

No extra spacing, thanks.

--
Tom
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 836 bytes
Desc: Digital signature
URL: <http://lists.denx.de/pipermail/u-boot/attachments/20140716/144c63a8/attachment.pgp>