When 32bit kernel is booting, kernel is reserving memory for SWIOTLB about
64MB. It seems that doesn't need to use full size.
After set 'swiotlb=8192', SWIOTLB is reserved to 16MB.
Then it can save 48MB memory to use ZONE_DMA.
Change-Id: I1a1659cbff2120da755b14f1b373715bc10027c4
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
#define CONFIG_SET_DFU_ALT_BUF_LEN (SZ_1K)
#ifdef CONFIG_TARGET_RPI_4_32B
-#define TIZEN_VC_MEM "vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 "
+#define TIZEN_VC_MEM "vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 swiotlb=8192 "
#else
#define TIZEN_VC_MEM "vc_mem.mem_base=0x3dc00000 vc_mem.mem_size=0x3f000000 "
#endif