[U-Boot] [PATCH v4 3/4] kirkwood: implement kw_sdram_size_adjust

[Prafulla Wadaskar]

> -----Original Message-----
> From: Gerlando Falauto [mailto:gerlando.falauto at keymile.com]
> Sent: 25 July 2012 09:24
> To: u-boot at lists.denx.de
> Cc: Gerlando Falauto; Holger Brunck; Prafulla Wadaskar; Valentin
> Longchamp
> Subject: [PATCH v4 3/4] kirkwood: implement kw_sdram_size_adjust
> 
> Size of the SDRAM chips might differ between any two (otherwise
> identical) instances of the same board.
> 
> So add a function kw_sdram_size_adjust() which reads out the current
> ram size for a given bank, and adjusts the Kirkwood's SDRAM window
> size
> register accordingly.
> 
> Signed-off-by: Gerlando Falauto <gerlando.falauto at keymile.com>
> Signed-off-by: Holger Brunck <holger.brunck at keymile.com>
> cc: Prafulla Wadaskar <prafulla at marvell.com>
> cc: Valentin Longchamp <valentin.longchamp at keymile.com>
> ---
> changes for v4:
>   - add bank parameter to kw_sdram_size_adjust()
> 
> changes for v3:
>   - rename dram_size_fixup to kw_sdramsize_adjust and move them to
> kirkwood/dram.c
> 
> changes for v2:
>   - rebase to current u-boot-marvell.git master branch
> 
>  arch/arm/cpu/arm926ejs/kirkwood/dram.c   |   11 +++++++++++
>  arch/arm/include/asm/arch-kirkwood/cpu.h |    1 +
>  2 files changed, 12 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/cpu/arm926ejs/kirkwood/dram.c
> b/arch/arm/cpu/arm926ejs/kirkwood/dram.c
> index 5e2f9d8..807894f 100644
> --- a/arch/arm/cpu/arm926ejs/kirkwood/dram.c
> +++ b/arch/arm/cpu/arm926ejs/kirkwood/dram.c
> @@ -97,6 +97,17 @@ u32 kw_sdram_bs(enum memory_bank bank)
>  	return result;
>  }
> 
> +void kw_sdram_size_adjust(enum memory_bank bank)
> +{
> +	u32 size;
> +
> +	/* probe currently equipped RAM size */
> +	size = get_ram_size((void *)kw_sdram_bar(bank),
> kw_sdram_bs(bank));
> +
> +	/* adjust SDRAM window size accordingly */
> +	kw_sdram_bs_set(bank, size);
> +}
> +
>  #ifndef CONFIG_SYS_BOARD_DRAM_INIT
>  int dram_init(void)
>  {
> diff --git a/arch/arm/include/asm/arch-kirkwood/cpu.h
> b/arch/arm/include/asm/arch-kirkwood/cpu.h
> index d28c51a..23783d5 100644
> --- a/arch/arm/include/asm/arch-kirkwood/cpu.h
> +++ b/arch/arm/include/asm/arch-kirkwood/cpu.h
> @@ -159,6 +159,7 @@ void reset_cpu(unsigned long ignored);
>  unsigned char get_random_hex(void);
>  unsigned int kw_sdram_bar(enum memory_bank bank);
>  unsigned int kw_sdram_bs(enum memory_bank bank);
> +void kw_sdram_size_adjust(enum memory_bank bank);
>  int kw_config_adr_windows(void);
>  void kw_config_gpio(unsigned int gpp0_oe_val, unsigned int
> gpp1_oe_val,
>  		unsigned int gpp0_oe, unsigned int gpp1_oe);
> --

Applied to u-boot-marvell.git master branch

Regards...
Prafulla . . .