From e2b35750099bc328f0535cd27a0290c748dfe407 Mon Sep 17 00:00:00 2001
From: junmin kim <junmindd.kim@samsung.com>
Date: Wed, 30 Aug 2017 04:16:05 -0700
Subject: [PATCH] Add qemu patch and update qemu README.md

qemu-2.10.0-rc2_increase_ram_size.patch is needed for using ram-increased lm3s6965evb
Without this patch, user can use only original lm3s6965evb(64KB ram)
---
 build/configs/qemu/README.md                       |  5 +-
 .../qemu/qemu-2.10.0-rc2_increase_ram_size.patch   | 80 ++++++++++++++++++++++
 2 files changed, 84 insertions(+), 1 deletion(-)
 create mode 100644 build/configs/qemu/qemu-2.10.0-rc2_increase_ram_size.patch

diff --git a/build/configs/qemu/README.md b/build/configs/qemu/README.md
index 71986ba..2483c81 100644
--- a/build/configs/qemu/README.md
+++ b/build/configs/qemu/README.md
@@ -13,9 +13,12 @@ QEMU uses lm3s6963-ek machine.
 wget http://download.qemu-project.org/qemu-2.10.0-rc2.tar.xz
 tar xvJf qemu-2.10.0-rc2.tar.xz
 cd qemu-2.10.0-rc2
+/* Copy qemu-2.10.0-rc2_increase_ram_size.patch from TizenRT/build/configs/qemu */
+patch -p1 < qemu-2.10.0-rc2_increase_ram_size.patch
 ./configure --target-list=arm-softmmu
 make -j 4
-Check executable in "arm-softmmu/qemu-system-arm" 
+cd arm-softmmu/
+sudo ln qemu-system-arm /usr/local/bin/qemu-system-arm
 ```
 ## How to program a binary
 
diff --git a/build/configs/qemu/qemu-2.10.0-rc2_increase_ram_size.patch b/build/configs/qemu/qemu-2.10.0-rc2_increase_ram_size.patch
new file mode 100644
index 0000000..f23966f
--- /dev/null
+++ b/build/configs/qemu/qemu-2.10.0-rc2_increase_ram_size.patch
@@ -0,0 +1,80 @@
+From a9f770243ccb354e99b9ff33ecfecbeca73b1b03 Mon Sep 17 00:00:00 2001
+From: Manohara HK <manohara.hk@samsung.com>
+Date: Mon, 20 Mar 2017 19:13:02 +0530
+Subject: [PATCH v2] arm : stellaris : Increase sram and flash size and support
+ sdram
+
+This patch increase's the sram and flash size of stellaris lm3s6965 board.
+It also adds a sdram of 512MB to the board.
+
+Signed-off-by: Manohara HK <manohara.hk@samsung.com>
+Signed-off-by: pradeep.ns <pradeep.ns@samsung.com>
+---
+ hw/arm/stellaris.c | 29 +++++++++++++++++++++++++++++
+ 1 file changed, 29 insertions(+)
+
+diff --git a/hw/arm/stellaris.c b/hw/arm/stellaris.c
+index 408c1a1..6c44158 100644
+--- a/hw/arm/stellaris.c
++++ b/hw/arm/stellaris.c
+@@ -55,6 +55,15 @@ typedef const struct {
+ #define STELLARIS_GPTM(obj) \
+     OBJECT_CHECK(gptm_state, (obj), TYPE_STELLARIS_GPTM)
+ 
++#define INCREASE_SRAM_FLASH	1 /*Increase the SRAM and FLASH to its Max Size Possible*/
++#define SUPPORT_SDARAM		1 /*Add a sdram @cortexm3 default extranal RAM map */
++
++
++#if defined(SUPPORT_SDARAM)
++#define CORTEXM3_SDRAM_SIZE	(512 * 1024 * 1024)
++#define CORTEXM3_SDRAM_ADDR	(0x60000000)
++#endif
++
+ typedef struct gptm_state {
+     SysBusDevice parent_obj;
+ 
+@@ -1216,7 +1225,11 @@ static stellaris_board_info stellaris_boards[] = {
+   { "LM3S6965EVB",
+     0x10010002,
+     0x1073402e,
++#if defined(INCREASE_SRAM_FLASH)
++    0xffffffff, /* dc0 : flash(128M) sram(16M) */
++#else
+     0x00ff007f, /* dc0 */
++#endif
+     0x001133ff,
+     0x030f5317,
+     0x0f0f87ff,
+@@ -1282,6 +1295,9 @@ static void stellaris_init(const char *kernel_filename, const char *cpu_model,
+ 
+     MemoryRegion *sram = g_new(MemoryRegion, 1);
+     MemoryRegion *flash = g_new(MemoryRegion, 1);
++#if defined(SUPPORT_SDARAM)
++    MemoryRegion *sdram = g_new(MemoryRegion, 1);
++#endif
+     MemoryRegion *system_memory = get_system_memory();
+ 
+     flash_size = (((board->dc0 & 0xffff) + 1) << 1) * 1024;
+@@ -1297,6 +1313,19 @@ static void stellaris_init(const char *kernel_filename, const char *cpu_model,
+                            &error_fatal);
+     memory_region_add_subregion(system_memory, 0x20000000, sram);
+ 
++#if defined(SUPPORT_SDARAM)
++    // Extranal RAM(SDRAM) of max CORTEXM3_SDRAM_SIZE @ CORTEXM3_SDRAM_ADDR
++    memory_region_init_ram(sdram, NULL, "stellaris.sdram", CORTEXM3_SDRAM_SIZE,
++				&error_fatal);
++
++    memory_region_add_subregion(system_memory, CORTEXM3_SDRAM_ADDR, sdram);
++    printf("%s : FLASH (B) = %d : SRAM (B) = %d : SDRAM (B) = %d\n", 
++		board->name, flash_size, sram_size, CORTEXM3_SDRAM_SIZE);
++#else
++    printf("%s : FLASH (B) = %d : SRAM (B) = %d\n", 
++		board->name, flash_size, sram_size);
++#endif
++
+     nvic = armv7m_init(system_memory, flash_size, NUM_IRQ_LINES,
+                       kernel_filename, cpu_model);
+ 
+-- 
+1.9.1
+
-- 
2.7.4