Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

1 files changed, 72 insertions, 0 deletions

diff --git a/qemu/roms/u-boot/doc/README.s5pc1xx b/qemu/roms/u-boot/doc/README.s5pc1xx
new file mode 100644
index 000000000..ab1f02469
--- /dev/null
+++ b/qemu/roms/u-boot/doc/README.s5pc1xx
@@ -0,0 +1,72 @@
+
+Summary
+=======
+
+This README is about U-Boot support for SAMSUNG's ARM Cortex-A8 based S5PC1xx
+family of SoCs (S5PC100 [1] and S5PC110).
+
+Currently the following board is supported:
+
+* SMDKC100 [2]
+
+Toolchain
+=========
+
+While ARM Cortex-A8 support ARM v7 instruction set (-march=armv7a) we compile
+with -march=armv5 to allow more compilers to work. For U-Boot code this has
+no performance impact.
+
+Build
+=====
+
+* SMDKC100
+
+make smdkc100_config
+make
+
+
+Interfaces
+==========
+
+cpu
+
+To check SoC:
+
+	if (cpu_is_s5pc100())
+		printf("cpu is s5pc100\n");
+
+	or
+
+	if (cpu_is_s5pc110())
+		printf("cpu is s5pc110\n");
+
+gpio
+
+	struct s5pc100_gpio *gpio = (struct s5pc100_gpio*)S5PC100_GPIO_BASE;
+
+	/* GPA[0] pin set to irq */
+	gpio_cfg_pin(&gpio->gpio_a, 0, GPIO_IRQ);
+
+	/* GPA[0] pin set to input */
+	gpio_direction_input(&gpio->gpio_a, 0);
+
+	/* GPA[0] pin set to output/high */
+	gpio_direction_output(&gpio->gpio_a, 0, 1);
+
+	/* GPA[0] value set to low */
+	gpio_set_value(&gpio->gpio_a, 0, 0);
+
+	/* get GPA[0] value */
+	value = gpio_get_value(&gpio->gpio_a, 0);
+
+Links
+=====
+
+[1] S5PC100:
+
+http://www.samsung.com/global/business/semiconductor/productInfo.do?
+fmly_id=229&partnum=S5PC100
+
+[2] SMDKC100:
+
+http://meritech.co.kr/eng/products/product_view.php?num=28