diff options
| author | Lokesh Vutla <lokeshvutla@ti.com> | 2014-05-12 13:49:33 +0530 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-05-23 19:40:38 -0400 |
| commit | d7630da6f401a68644f8c5fa1ee3b39bcf60972f (patch) | |
| tree | e18556370ce727193d91238d7391164783541420 | |
| parent | d14c6335bcae5fd1909f6280dcfa064bb62c30f0 (diff) | |
ARM: OMAP: Fix omap_sdram_size calculation
Last section of DMM is used for trapping tiler unmapped sections.
Corresponding trap_size should be deducted from total SDRAM size
only if trap section is overlapping with available SDRAM
based on DMM sections. Fixing the same.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
| -rw-r--r-- | arch/arm/cpu/armv7/omap-common/hwinit-common.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/arm/cpu/armv7/omap-common/hwinit-common.c b/arch/arm/cpu/armv7/omap-common/hwinit-common.c index 132454c7b41..ba97d9ec565 100644 --- a/arch/arm/cpu/armv7/omap-common/hwinit-common.c +++ b/arch/arm/cpu/armv7/omap-common/hwinit-common.c @@ -185,7 +185,7 @@ u32 omap_sdram_size(void) { u32 section, i, valid; u64 sdram_start = 0, sdram_end = 0, addr, - size, total_size = 0, trap_size = 0; + size, total_size = 0, trap_size = 0, trap_start = 0; for (i = 0; i < 4; i++) { section = __raw_readl(DMM_BASE + i*4); @@ -208,12 +208,15 @@ u32 omap_sdram_size(void) sdram_end = addr + size; } else { trap_size = size; + trap_start = addr; } - } - } - total_size = (sdram_end - sdram_start) - (trap_size); + + if ((trap_start >= sdram_start) && (trap_start < sdram_end)) + total_size = (sdram_end - sdram_start) - (trap_size); + else + total_size = sdram_end - sdram_start; return total_size; } |