[U-Boot] [PATCH v2 2/2] rockchip: fix incorrect detection of ram size

[Philipp Tomsich]

Marty,

> On 13.09.2018, at 23:55, Marty E. Plummer <hanetzer at startmail.com> wrote:
> 
> Taken from coreboot's src/soc/rockchip/rk3288/sdram.c
> 
> Without this change, my u-boot build for the asus c201 chromebook (4GiB)
> is incorrectly detected as 0 Bytes of ram.
> 
> Signed-off-by: Marty E. Plummer <hanetzer at startmail.com>

Please revise.
See below.

> ---
> arch/arm/mach-rockchip/sdram_common.c | 2 ++
> 1 file changed, 2 insertions(+)
> 
> diff --git a/arch/arm/mach-rockchip/sdram_common.c b/arch/arm/mach-rockchip/sdram_common.c
> index 650d53e4d9..194dc74b9f 100644
> --- a/arch/arm/mach-rockchip/sdram_common.c
> +++ b/arch/arm/mach-rockchip/sdram_common.c
> @@ -48,6 +48,8 @@ size_t rockchip_sdram_size(phys_addr_t reg)
> 		      rank, col, bk, cs0_row, bw, row_3_4);
> 	}
> 
> +	size_mb = min(size_mb, SDRAM_MAX_SIZE/SZ_1M);
> +

   aarch64:  +   evb-rk3399 firefly-rk3399 geekbox evb-px5 sheep-rk3368 lion-rk3368 evb-rk3328 puma-rk3399
+In file included from include/linux/delay.h:6:0,
+                 from include/common.h:26,
+                 from arch/arm/mach-rockchip/sdram_common.c:6:
+arch/arm/mach-rockchip/sdram_common.c: In function 'rockchip_sdram_size':
+include/linux/kernel.h:161:17: error: comparison of distinct pointer types lacks a cast [-Werror]
+  (void) (&_min1 == &_min2);  \
+                 ^
+arch/arm/mach-rockchip/sdram_common.c:51:12: note: in expansion of macro 'min'
+  size_mb = min(size_mb, SDRAM_MAX_SIZE/SZ_1M);
+            ^~~
+cc1: all warnings being treated as errors

> 	return (size_t)size_mb << 20;
> }
> 
> -- 
> 2.18.0
>