diff mbox

[U-Boot,1/1] m28evk board config

Message ID 9b9c603b19ad8367fdacd3b648aa6809@denx.de
State Changes Requested
Delegated to: Stefano Babic
Headers show

Commit Message

lothar@denx.de Sept. 6, 2013, 6:10 p.m. UTC
From 24b6381162b4569ab86b481b8714d81877231f22 Mon Sep 17 00:00:00 2001
 From: Lothar Rubusch <lothar@denx.de>
Date: Fri, 6 Sep 2013 15:01:39 +0200
Subject: [PATCH] m28evk board specific configurations for setup with ext 
boot
  partition and separate ext rootfs


Signed-off-by: Lothar Rubusch <lothar@denx.de>
---
  include/configs/m28evk.h | 78 
++++++++++++++++++++++++++++++++++++++++++++++--
  1 file changed, 75 insertions(+), 3 deletions(-)

  #include <configs/mxs.h>

Comments

Fabio Estevam Sept. 6, 2013, 6:31 p.m. UTC | #1
On Fri, Sep 6, 2013 at 3:10 PM,  <lothar@denx.de> wrote:
> From 24b6381162b4569ab86b481b8714d81877231f22 Mon Sep 17 00:00:00 2001
> From: Lothar Rubusch <lothar@denx.de>
> Date: Fri, 6 Sep 2013 15:01:39 +0200
> Subject: [PATCH] m28evk board specific configurations for setup with ext
> boot
>  partition and separate ext rootfs

Quite a long subject and no commit log.


>
> Signed-off-by: Lothar Rubusch <lothar@denx.de>
> ---
>  include/configs/m28evk.h | 78
> ++++++++++++++++++++++++++++++++++++++++++++++--
>  1 file changed, 75 insertions(+), 3 deletions(-)
>
> diff --git a/include/configs/m28evk.h b/include/configs/m28evk.h
> index eba8759..b65456e 100644
> --- a/include/configs/m28evk.h
> +++ b/include/configs/m28evk.h
> @@ -150,15 +150,25 @@
>  #endif
>
>  /* Booting Linux */
> -#define CONFIG_BOOTDELAY       3
> +#define CONFIG_BOOTDELAY       5

This is a separate change or at least it should be mentioned in the commit log.
Marek Vasut Sept. 9, 2013, 2:37 p.m. UTC | #2
Dear lothar@denx.de,

>  From 24b6381162b4569ab86b481b8714d81877231f22 Mon Sep 17 00:00:00 2001
>  From: Lothar Rubusch <lothar@denx.de>
> Date: Fri, 6 Sep 2013 15:01:39 +0200
> Subject: [PATCH] m28evk board specific configurations for setup with ext
> boot
>   partition and separate ext rootfs
> 
> 
> Signed-off-by: Lothar Rubusch <lothar@denx.de>
> ---
>   include/configs/m28evk.h | 78
> ++++++++++++++++++++++++++++++++++++++++++++++--
>   1 file changed, 75 insertions(+), 3 deletions(-)
> 
> diff --git a/include/configs/m28evk.h b/include/configs/m28evk.h
> index eba8759..b65456e 100644
> --- a/include/configs/m28evk.h
> +++ b/include/configs/m28evk.h
> @@ -150,15 +150,25 @@
>   #endif
> 
>   /* Booting Linux */
> -#define CONFIG_BOOTDELAY	3
> +#define CONFIG_BOOTDELAY	5
>   #define CONFIG_BOOTFILE		"uImage"
>   #define CONFIG_BOOTARGS		"console=ttyAMA0,115200n8 "
> -#define CONFIG_BOOTCOMMAND	"run bootcmd_net"
> +#define CONFIG_BOOTCOMMAND	"run mmc_mmc"
>   #define CONFIG_LOADADDR		0x42000000
>   #define CONFIG_SYS_LOAD_ADDR	CONFIG_LOADADDR

These two options above do not seem right, they certainly can make use of some 
unification. But that's for another patch.

>   /* Extra Environment */
>   #define CONFIG_EXTRA_ENV_SETTINGS					\
> +	"fdtfile=imx28-m28evk.dtb\0"                                    \
> +	"consdev=ttyAMA0\0"                                             \
> +	"baudrate=115200\0"                                             \
> +	"bootdev=/dev/mmcblk0p2\0"                                      \
> +	"rootdev=/dev/mmcblk0p3\0"                                      \
> +	"netdev=eth0\0"                                                 \
> +	"hostname=m28evk\0"                                             \
> +	"rootpath=/opt/eldk-5.3/armv5te/rootfs-qte-sdk\0"               \

Use 5.4 here ?

> +	"kernel_addr_r=0x42000000\0"                                    \
> +	"fdt_addr_r=0x41000000\0"                                       \
>   	"update_nand_full_filename=u-boot.nand\0"			\
>   	"update_nand_firmware_filename=u-boot.sb\0"			\
>   	"update_sd_firmware_filename=u-boot.sd\0"			\
> @@ -196,7 +206,69 @@
>   		"setexpr fw_sz ${fw_sz} + 1 ; "				\
>   		"mmc write ${loadaddr} 0x800 ${fw_sz} ; "		\
>   		"fi ; "							\
> -		"fi\0"
> +		"fi\0"                                                  \
> +	"addcons=setenv bootargs ${bootargs} console=${consdev},${baudrate}\0"
> \
> +	"addip="                                                        \
> +		"setenv bootargs ${bootargs} "                          \
> +			"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:" \
> +				"${hostname}:${netdev}:off\0"           \
> +	"addmisc=setenv bootargs ${bootargs} ${miscargs}\0"             \
> +	"adddfltmtd="                                                   \
> +		"if test \"x${mtdparts}\" == \"x\" ; "                  \
> +		"then mtdparts default ; "                              \
> +		"fi\0"                                                  \

I suspect the addmtd should be called unconditionally for every boot type 
(mmc_nfs...net_nand).

[...]

Best regards,
Marek Vasut
lothar@denx.de Sept. 10, 2013, 9:14 a.m. UTC | #3
Hello Mailing List - Hello Fabio and Marex
Thank you very much for your helpfull hints!!
Just some words of mine on your comments.


Am 2013-09-09 16:37, schrieb Marek Vasut:
> Dear lothar@denx.de,
> 
>>  From 24b6381162b4569ab86b481b8714d81877231f22 Mon Sep 17 00:00:00 
>> 2001
>>  From: Lothar Rubusch <lothar@denx.de>
>> Date: Fri, 6 Sep 2013 15:01:39 +0200
>> Subject: [PATCH] m28evk board specific configurations for setup with 
>> ext
>> boot
>>   partition and separate ext rootfs
>> 
>> 
>> Signed-off-by: Lothar Rubusch <lothar@denx.de>
>> ---
>>   include/configs/m28evk.h | 78
>> ++++++++++++++++++++++++++++++++++++++++++++++--
>>   1 file changed, 75 insertions(+), 3 deletions(-)
>> 
>> diff --git a/include/configs/m28evk.h b/include/configs/m28evk.h
>> index eba8759..b65456e 100644
>> --- a/include/configs/m28evk.h
>> +++ b/include/configs/m28evk.h
>> @@ -150,15 +150,25 @@
>>   #endif
>> 
>>   /* Booting Linux */
>> -#define CONFIG_BOOTDELAY	3
>> +#define CONFIG_BOOTDELAY	5
>>   #define CONFIG_BOOTFILE		"uImage"
>>   #define CONFIG_BOOTARGS		"console=ttyAMA0,115200n8 "
>> -#define CONFIG_BOOTCOMMAND	"run bootcmd_net"
>> +#define CONFIG_BOOTCOMMAND	"run mmc_mmc"
>>   #define CONFIG_LOADADDR		0x42000000
>>   #define CONFIG_SYS_LOAD_ADDR	CONFIG_LOADADDR
> 
> These two options above do not seem right, they certainly can make use 
> of some
> unification. But that's for another patch.

As Fabio Estevan already mentioned, the BOOTDELAY is definitely an 
unnecessary change which I'll leave out.
Fabio further complained about a missing commit history. I can see the 
point, but the configurations were elaborated directly through the uboot 
environment, and thus commited altogether. They were necessary, since 
the before include/configs/m28evk.h was definitely not working well with 
the m28evk board. Testing it, and with a huge help of Marek, I came to 
present this solution, and will soon post a v2 of it.

As Marek explained me personally, his comment here was related to the 
duplicate setting of the LOADADDR. My patch does not address this issue.


>>   /* Extra Environment */
>>   #define CONFIG_EXTRA_ENV_SETTINGS					\
>> +	"fdtfile=imx28-m28evk.dtb\0"                                    \
>> +	"consdev=ttyAMA0\0"                                             \
>> +	"baudrate=115200\0"                                             \
>> +	"bootdev=/dev/mmcblk0p2\0"                                      \
>> +	"rootdev=/dev/mmcblk0p3\0"                                      \
>> +	"netdev=eth0\0"                                                 \
>> +	"hostname=m28evk\0"                                             \
>> +	"rootpath=/opt/eldk-5.3/armv5te/rootfs-qte-sdk\0"               \
> 
> Use 5.4 here ?

Definitely!

>> +	"kernel_addr_r=0x42000000\0"                                    \
>> +	"fdt_addr_r=0x41000000\0"                                       \
>>   	"update_nand_full_filename=u-boot.nand\0"			\
>>   	"update_nand_firmware_filename=u-boot.sb\0"			\
>>   	"update_sd_firmware_filename=u-boot.sd\0"			\
>> @@ -196,7 +206,69 @@
>>   		"setexpr fw_sz ${fw_sz} + 1 ; "				\
>>   		"mmc write ${loadaddr} 0x800 ${fw_sz} ; "		\
>>   		"fi ; "							\
>> -		"fi\0"
>> +		"fi\0"                                                  \
>> +	"addcons=setenv bootargs ${bootargs} 
>> console=${consdev},${baudrate}\0"
>> \
>> +	"addip="                                                        \
>> +		"setenv bootargs ${bootargs} "                          \
>> +			"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:" \
>> +				"${hostname}:${netdev}:off\0"           \
>> +	"addmisc=setenv bootargs ${bootargs} ${miscargs}\0"             \
>> +	"adddfltmtd="                                                   \
>> +		"if test \"x${mtdparts}\" == \"x\" ; "                  \
>> +		"then mtdparts default ; "                              \
>> +		"fi\0"                                                  \
> 
> I suspect the addmtd should be called unconditionally for every boot 
> type
> (mmc_nfs...net_nand).

I can't currently see her which conditional case under which addmtd is 
running. I'll double check it for a v2. Thank you.

BR,
Lothar Rubusch
Stefano Babic Sept. 10, 2013, 10:49 a.m. UTC | #4
Hi Lothar,

On 06/09/2013 20:10, lothar@denx.de wrote:
> From 24b6381162b4569ab86b481b8714d81877231f22 Mon Sep 17 00:00:00 2001
> From: Lothar Rubusch <lothar@denx.de>
> Date: Fri, 6 Sep 2013 15:01:39 +0200
> Subject: [PATCH] m28evk board specific configurations for setup with ext
> boot
>  partition and separate ext rootfs
> 

Generally I think it is better you have a smaller commit subject and you
increase the commit log with all changes.

However:

> 
> Signed-off-by: Lothar Rubusch <lothar@denx.de>
> ---
>  include/configs/m28evk.h | 78
> ++++++++++++++++++++++++++++++++++++++++++++++--
>  1 file changed, 75 insertions(+), 3 deletions(-)
> 
> diff --git a/include/configs/m28evk.h b/include/configs/m28evk.h
> index eba8759..b65456e 100644
> --- a/include/configs/m28evk.h
> +++ b/include/configs/m28evk.h
> @@ -150,15 +150,25 @@
>  #endif
> 
>  /* Booting Linux */
> -#define CONFIG_BOOTDELAY    3
> +#define CONFIG_BOOTDELAY    5
>  #define CONFIG_BOOTFILE        "uImage"
>  #define CONFIG_BOOTARGS        "console=ttyAMA0,115200n8 "
> -#define CONFIG_BOOTCOMMAND    "run bootcmd_net"
> +#define CONFIG_BOOTCOMMAND    "run mmc_mmc"
>  #define CONFIG_LOADADDR        0x42000000
>  #define CONFIG_SYS_LOAD_ADDR    CONFIG_LOADADDR
> 
>  /* Extra Environment */
>  #define CONFIG_EXTRA_ENV_SETTINGS                    \
> +    "fdtfile=imx28-m28evk.dtb\0"                                    \
> +    "consdev=ttyAMA0\0"                                             \
> +    "baudrate=115200\0"                                             \
> +    "bootdev=/dev/mmcblk0p2\0"                                      \
> +    "rootdev=/dev/mmcblk0p3\0"                                      \
> +    "netdev=eth0\0"                                                 \
> +    "hostname=m28evk\0"                                             \
> +    "rootpath=/opt/eldk-5.3/armv5te/rootfs-qte-sdk\0"               \

I know very well why, but this is against the logic that the delivered
environment is quite generic for all situation. Setting rootpath is for
me not different as setting ip address, that is it is a local
configuration and should be not linked with the code.

> +    "kernel_addr_r=0x42000000\0"                                    \
> +    "fdt_addr_r=0x41000000\0"                                       \
>      "update_nand_full_filename=u-boot.nand\0"            \
>      "update_nand_firmware_filename=u-boot.sb\0"            \
>      "update_sd_firmware_filename=u-boot.sd\0"            \
> @@ -196,7 +206,69 @@
>          "setexpr fw_sz ${fw_sz} + 1 ; "                \
>          "mmc write ${loadaddr} 0x800 ${fw_sz} ; "        \
>          "fi ; "                            \
> -        "fi\0"
> +        "fi\0"                                                  \
> +    "addcons=setenv bootargs ${bootargs}
> console=${consdev},${baudrate}\0" \
> +    "addip="                                                        \
> +        "setenv bootargs ${bootargs} "                          \
> +            "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:" \
> +                "${hostname}:${netdev}:off\0"           \
> +    "addmisc=setenv bootargs ${bootargs} ${miscargs}\0"             \
> +    "adddfltmtd="                                                   \
> +        "if test \"x${mtdparts}\" == \"x\" ; "                  \
> +        "then mtdparts default ; "                              \
> +        "fi\0"                                                  \
> +    "addmtd="                                                       \
> +        "run adddfltmtd ; "                                     \
> +        "setenv bootargs ${bootargs} ${mtdparts}\0"             \
> +    "addargs=run addcons addmtd addmisc\0"                          \
> +    "kernel_mmcload="                                               \
> +        "mmc rescan ; "                                         \
> +        "ext2load mmc 0:2 ${kernel_addr_r} ${bootfile}\0"        \
> +    "kernel_nandload=nand read ${kernel_addr_r} kernel\0"           \
> +    "kernel_netload=tftp ${kernel_addr_r} ${bootfile}\0"            \
> +    "fdt_mmcload="                                                  \
> +        "mmc rescan ; "                                         \
> +        "ext2load mmc 0:2 ${fdt_addr_r} ${fdtfile}\0"            \
> +    "fdt_nandload=nand read ${fdt_addr_r} fdt\0"                    \
> +    "fdt_netload=tftp ${fdt_addr_r} ${fdtfile}\0"                   \
> +    "miscargs=nohlt panic=1\0"                                      \
> +    "mmcargs=setenv bootargs root=${rootdev} rw rootwait\0"         \
> +    "nandargs="                                                     \
> +        "setenv bootargs ubi.mtd=6 root=ubi0:rootfs "           \
> +            "rootfstype=ubifs\0"                            \
> +    "nfsargs="                                                      \
> +        "setenv bootargs root=/dev/nfs rw "                     \
> +            "nfsroot=${serverip}:${rootpath},v3,tcp\0"      \
> +    "mmcload=run kernel_mmcload fdt_mmcload\0"                      \
> +    "nandload=run kernel_nandload fdt_nandload\0"                   \
> +    "netload=run kernel_netload fdt_netload\0"                      \
> +    "mmc_nfs="                                                      \
> +        "run mmcload nfsargs addip addargs ; "                  \
> +        "bootm ${kernel_addr_r} - ${fdt_addr_r}\0"              \
> +    "mmc_mmc="                                                      \
> +        "run mmcload mmcargs addargs ; "                        \
> +        "bootm ${kernel_addr_r} - ${fdt_addr_r}\0"              \
> +    "mmc_nand="                                                     \
> +        "run mmcload nandargs addargs ; "                       \
> +        "bootm ${kernel_addr_r} - ${fdt_addr_r}\0"              \
> +    "nand_mmc="                                                     \
> +        "run nandload mmcargs addargs ; "                       \
> +        "bootm ${kernel_addr_r} - ${fdt_addr_r}\0"              \
> +    "nand_nfs="                                                     \
> +        "run nandload nfsargs addip addargs ; "                 \
> +        "bootm ${kernel_addr_r} - ${fdt_addr_r}\0"              \
> +    "nand_nand="                                                    \
> +        "run nandload nandargs addargs ; "                      \
> +        "bootm ${kernel_addr_r} - ${fdt_addr_r}\0"              \
> +    "net_mmc="                                                      \
> +        "run netload mmcargs addargs ; "                        \
> +        "bootm ${kernel_addr_r} - ${fdt_addr_r}\0"              \
> +    "net_nfs="                                                      \
> +        "run netload nfsargs addip addargs ; "                  \
> +        "bootm ${kernel_addr_r} - ${fdt_addr_r}\0"              \
> +    "net_nand="                                                     \
> +        "run netload nandargs addargs ; "                       \
> +        "bootm ${kernel_addr_r} - ${fdt_addr_r}\0"
> 
>  /* The rest of the configuration is shared */
>  #include <configs/mxs.h>

Even if it is smaller, I guess we fight with the same issue of Dennis'
patch:

	http://patchwork.ozlabs.org/patch/261969/

that I rejected. We are moving from a a dynamic environment to a fully
static environment, decided at compile time. If you read the whole
thread, you can also see Wolfgang's comments about it. Generally, U-Boot
is thought to be easy extendible with the environment, and each user can
add his own environment on base of his needs.

However, in the last times I got al lot of changes to fix the
environment - suitable for one use case. It is true, I merged most of
them (shame on me !), but it seems to me that doing in this way becomes
not maintainable.

In the discussion about Dennis's patch there are some proposals how to
get a single image (we have plenty of tools in u-boot to get a ready to
use image for the environment and to import it to set is as current
one), and how to import / export the environment.

Maybe should we change the way we are adding the environment ? It should
be better (*really* better) if we do not need to change the code when a
variable is changed. We could maybe define a standard way (common
command) to load the environment from the storage, and only this command
can be put into  CONFIG_EXTRA_ENV_SETTINGS. The whole environment itself
will be put into a separate file(s), compiled as image and loaded when
needed. The user could select which file must be loaded.

Best regards,
Stefano Babic
diff mbox

Patch

diff --git a/include/configs/m28evk.h b/include/configs/m28evk.h
index eba8759..b65456e 100644
--- a/include/configs/m28evk.h
+++ b/include/configs/m28evk.h
@@ -150,15 +150,25 @@ 
  #endif

  /* Booting Linux */
-#define CONFIG_BOOTDELAY	3
+#define CONFIG_BOOTDELAY	5
  #define CONFIG_BOOTFILE		"uImage"
  #define CONFIG_BOOTARGS		"console=ttyAMA0,115200n8 "
-#define CONFIG_BOOTCOMMAND	"run bootcmd_net"
+#define CONFIG_BOOTCOMMAND	"run mmc_mmc"
  #define CONFIG_LOADADDR		0x42000000
  #define CONFIG_SYS_LOAD_ADDR	CONFIG_LOADADDR

  /* Extra Environment */
  #define CONFIG_EXTRA_ENV_SETTINGS					\
+	"fdtfile=imx28-m28evk.dtb\0"                                    \
+	"consdev=ttyAMA0\0"                                             \
+	"baudrate=115200\0"                                             \
+	"bootdev=/dev/mmcblk0p2\0"                                      \
+	"rootdev=/dev/mmcblk0p3\0"                                      \
+	"netdev=eth0\0"                                                 \
+	"hostname=m28evk\0"                                             \
+	"rootpath=/opt/eldk-5.3/armv5te/rootfs-qte-sdk\0"               \
+	"kernel_addr_r=0x42000000\0"                                    \
+	"fdt_addr_r=0x41000000\0"                                       \
  	"update_nand_full_filename=u-boot.nand\0"			\
  	"update_nand_firmware_filename=u-boot.sb\0"			\
  	"update_sd_firmware_filename=u-boot.sd\0"			\
@@ -196,7 +206,69 @@ 
  		"setexpr fw_sz ${fw_sz} + 1 ; "				\
  		"mmc write ${loadaddr} 0x800 ${fw_sz} ; "		\
  		"fi ; "							\
-		"fi\0"
+		"fi\0"                                                  \
+	"addcons=setenv bootargs ${bootargs} console=${consdev},${baudrate}\0" 
\
+	"addip="                                                        \
+		"setenv bootargs ${bootargs} "                          \
+			"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:" \
+				"${hostname}:${netdev}:off\0"           \
+	"addmisc=setenv bootargs ${bootargs} ${miscargs}\0"             \
+	"adddfltmtd="                                                   \
+		"if test \"x${mtdparts}\" == \"x\" ; "                  \
+		"then mtdparts default ; "                              \
+		"fi\0"                                                  \
+	"addmtd="                                                       \
+		"run adddfltmtd ; "                                     \
+		"setenv bootargs ${bootargs} ${mtdparts}\0"             \
+	"addargs=run addcons addmtd addmisc\0"                          \
+	"kernel_mmcload="                                               \
+		"mmc rescan ; "                                         \
+		"ext2load mmc 0:2 ${kernel_addr_r} ${bootfile}\0"        \
+	"kernel_nandload=nand read ${kernel_addr_r} kernel\0"           \
+	"kernel_netload=tftp ${kernel_addr_r} ${bootfile}\0"            \
+	"fdt_mmcload="                                                  \
+		"mmc rescan ; "                                         \
+		"ext2load mmc 0:2 ${fdt_addr_r} ${fdtfile}\0"            \
+	"fdt_nandload=nand read ${fdt_addr_r} fdt\0"                    \
+	"fdt_netload=tftp ${fdt_addr_r} ${fdtfile}\0"                   \
+	"miscargs=nohlt panic=1\0"                                      \
+	"mmcargs=setenv bootargs root=${rootdev} rw rootwait\0"         \
+	"nandargs="                                                     \
+		"setenv bootargs ubi.mtd=6 root=ubi0:rootfs "           \
+			"rootfstype=ubifs\0"                            \
+	"nfsargs="                                                      \
+		"setenv bootargs root=/dev/nfs rw "                     \
+			"nfsroot=${serverip}:${rootpath},v3,tcp\0"      \
+	"mmcload=run kernel_mmcload fdt_mmcload\0"                      \
+	"nandload=run kernel_nandload fdt_nandload\0"                   \
+	"netload=run kernel_netload fdt_netload\0"                      \
+	"mmc_nfs="                                                      \
+		"run mmcload nfsargs addip addargs ; "                  \
+		"bootm ${kernel_addr_r} - ${fdt_addr_r}\0"              \
+	"mmc_mmc="                                                      \
+		"run mmcload mmcargs addargs ; "                        \
+		"bootm ${kernel_addr_r} - ${fdt_addr_r}\0"              \
+	"mmc_nand="                                                     \
+		"run mmcload nandargs addargs ; "                       \
+		"bootm ${kernel_addr_r} - ${fdt_addr_r}\0"              \
+	"nand_mmc="                                                     \
+		"run nandload mmcargs addargs ; "                       \
+		"bootm ${kernel_addr_r} - ${fdt_addr_r}\0"              \
+	"nand_nfs="                                                     \
+		"run nandload nfsargs addip addargs ; "                 \
+		"bootm ${kernel_addr_r} - ${fdt_addr_r}\0"              \
+	"nand_nand="                                                    \
+		"run nandload nandargs addargs ; "                      \
+		"bootm ${kernel_addr_r} - ${fdt_addr_r}\0"              \
+	"net_mmc="                                                      \
+		"run netload mmcargs addargs ; "                        \
+		"bootm ${kernel_addr_r} - ${fdt_addr_r}\0"              \
+	"net_nfs="                                                      \
+		"run netload nfsargs addip addargs ; "                  \
+		"bootm ${kernel_addr_r} - ${fdt_addr_r}\0"              \
+	"net_nand="                                                     \
+		"run netload nandargs addargs ; "                       \
+		"bootm ${kernel_addr_r} - ${fdt_addr_r}\0"

  /* The rest of the configuration is shared */