Dear Aneesh V,
In message 4D4798E2.3050500@ti.com you wrote:
I had been working on creating an MMC SPL for OMAP4. OMAP boards typically support booting from the FAT partition of a removable SD/MMC card. So, we need to have FAT support in the SPL. But I am having some difficulties in adding FAT support to SPL.
BSS footprint of fat.c is very high. It has three buffers each of size 64KB. To workaround this problem I have done something like below(The way x-loader works around this problem today). CONFIG_SYS_SPL_FAT_BUFFER_BASE is in SDRAM.Is this ok?
Why would that be necessary? Just put the BSS segment in SDRAM, and everything is fine, isn't it?
Also, I was wondering why we need 3 such scratch buffers in this implementation. I do not understand this code. But I was wondering if we could work with just one 64K buffer?
I have no idea. I am not familiar with that code either.
Best regards,
Wolfgang Denk