[U-Boot] [PATCH][RESEND]: Fix for U-Boot build failure with CONFIG_SYS_NO_FLASH defined for qemu-mips.

[Shinya Kuribayashi <shinya.kuribayashi@necel.com>]

Himanshu Chauhan wrote:
> May be I really want that CONFIG_SYS_NO_FLASH defined then build should at least not break. Isn't it?

Correct, it should build even with CONFIG_SYS_NO_FLASH.

>>> diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
>>> index efd6aec..5bd3af0 100644
>>> --- a/common/cmd_bootm.c
>>> +++ b/common/cmd_bootm.c
>>> @@ -76,7 +76,7 @@ extern void bz_internal_error(int);
>>>   static int image_info (unsigned long addr);
>>>   #endif
>>>
>>> -#if defined(CONFIG_CMD_IMLS)
>>> +#if !defined(CONFIG_SYS_NO_FLASH)&&  defined(CONFIG_CMD_IMLS)
>>>   #include<flash.h>
>>>   extern flash_info_t flash_info[]; /* info for FLASH chips */
>>>   static int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char
>>> *argv[]);
>>> @@ -1153,7 +1153,7 @@ U_BOOT_CMD(
>>>   /*******************************************************************/
>>>   /* imls - list all images found in flash */
>>>   /*******************************************************************/
>>> -#if defined(CONFIG_CMD_IMLS)
>>> +#if !defined(CONFIG_SYS_NO_FLASH)&&  defined(CONFIG_CMD_IMLS)
>>>   int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
>>>   {
>>>       flash_info_t *info;
>> Disabling IMLS command in configs/qemu_mips.h?
> This should have been disabled anyways if this patch was applied:
> http://www.mail-archive.com/u-boot at lists.denx.de/msg07407.html

The patch is applied.

|diff --git a/include/configs/qemu-mips.h b/include/configs/qemu-mips.h
|index cbacdf9..49a1a1c 100644
|--- a/include/configs/qemu-mips.h
|+++ b/include/configs/qemu-mips.h
|:q
|@@ -142,6 +142,7 @@
| #define CONFIG_SYS_INIT_SP_OFFSET	0x400000
|
| /* We boot from this flash, selected with dip switch */
|+#define CONFIG_SYS_NO_FLASH
| #define CONFIG_SYS_FLASH_BASE		0xbfc00000
| #define CONFIG_SYS_MAX_FLASH_BANKS	1
| #define CONFIG_SYS_MAX_FLASH_SECT	128

FWIW, how about putting CONFIG_SYS_NO_FLASH prior to <config_cmd_
default.h>?

>>> diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c
>>> index 24eb33f..06c7271 100644
>>> --- a/drivers/mtd/cfi_flash.c
>>> +++ b/drivers/mtd/cfi_flash.c
>>> @@ -41,6 +41,7 @@
>>>   #include<environment.h>
>>>   #include<mtd/cfi_flash.h>
>>>
>>> +#ifndef CONFIG_SYS_NO_FLASH
>>>   /*
>>>    * This file implements a Common Flash Interface (CFI) driver for
>>>    * U-Boot.
>>> @@ -2020,3 +2021,5 @@ unsigned long flash_init (void)
>>>
>>>       return (size);
>>>   }
>>> +
>>> +#endif
>> Removing CONFIG_CFI_DRIVER from configs/qemu_mips.h?
> If CONFIG_SYS_NO_FLASH is defined should it be compiled?

No.  In U-Boot, in general, drivers should be predefined through
configs/<boardname>.h.  If we don't use CFI driver, just disable
it in top-level board config file.  This is to avoid #ifdef mess,
and prevent the drivers from being clobbered.

-- 
Shinya Kuribayashi
NEC Electronics