qcs404: sysmap: Don't map reserved memory ranges

Currently u-boot maps whole of 1G RAM but there reserved memory ranges on
QCS404 which are reserved for TrustZone, various firmware components etc.
Any access to these reserved memory ranges causes a bus hang issue. So
disable mapping for reserved memory ranges in u-boot.

Signed-off-by: Sumit Garg <sumit.garg@linaro.org>

diff --git a/arch/arm/mach-snapdragon/sysmap-qcs404.c b/arch/arm/mach-snapdragon/sysmap-qcs404.c
index b7409031a0344aa93cbe4423281ceb8daa80b586..64ca4adf1bd161706e9ad1b00be3e290ee3f9feb 100644 (file)
--- a/arch/arm/mach-snapdragon/sysmap-qcs404.c
+++ b/arch/arm/mach-snapdragon/sysmap-qcs404.c
@@ -19,7 +19,19 @@ static struct mm_region qcs404_mem_map[] = {
        }, {
                .virt = 0x80000000UL, /* DDR */
                .phys = 0x80000000UL, /* DDR */
-               .size = 0x40000000UL,
+               .size = 0x05900000UL,
+               .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+                        PTE_BLOCK_INNER_SHARE
+       }, {
+               .virt = 0x89600000UL, /* DDR */
+               .phys = 0x89600000UL, /* DDR */
+               .size = 0x162000000UL,
+               .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+                        PTE_BLOCK_INNER_SHARE
+       }, {
+               .virt = 0xa0000000UL, /* DDR */
+               .phys = 0xa0000000UL, /* DDR */
+               .size = 0x20000000UL,
                .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
                         PTE_BLOCK_INNER_SHARE
        }, {