1 files changed, 78 insertions, 0 deletions
diff --git a/src/mainboard/google/snow/smdk5250_spl.c b/src/mainboard/google/snow/smdk5250_spl.c
new file mode 100644
index 0000000000..204e41106b
--- /dev/null
+++ b/src/mainboard/google/snow/smdk5250_spl.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2012 The Chromium OS Authors.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <arch/gpio.h>
+#include <cpu/samsung/exynos5-common/spl.h>
+#include <cpu/samsung/exynos5250/gpio.h>
+
+#define SIGNATURE	0xdeadbeef
+
+/* Parameters of early board initialization in SPL */
+static struct spl_machine_param machine_param
+		__attribute__((section(".machine_param"))) = {
+	.signature	= SIGNATURE,
+	.version	= 1,
+	.params		= "vmubfasirMw",
+	.size		= sizeof(machine_param),
+
+	.mem_iv_size	= 0x1f,
+	.mem_type	= DDR_MODE_DDR3,
+
+	/*
+	 * Set uboot_size to 0x100000 bytes.
+	 *
+	 * This is an overly conservative value chosen to accommodate all
+	 * possible U-Boot image.  You are advised to set this value to a
+	 * smaller realistic size via scripts that modifies the .machine_param
+	 * section of output U-Boot image.
+	 */
+	.uboot_size	= 0x100000,
+
+	.boot_source	= BOOT_MODE_OM,
+	.frequency_mhz	= 800,
+	.arm_freq_mhz	= 1700,
+	.serial_base	= 0x12c30000,
+	.i2c_base	= 0x12c60000,
+	.board_rev_gpios = GPIO_D00 | (GPIO_D01 << 16),
+	.mem_manuf	= MEM_MANUF_SAMSUNG,
+	.bad_wake_gpio	= GPIO_Y10,
+};
+
+struct spl_machine_param *spl_get_machine_params(void)
+{
+	if (machine_param.signature != SIGNATURE) {
+		/* TODO: Call panic() here */
+		while (1)
+			;
+	}
+
+	return &machine_param;
+}
+
+int board_wakeup_permitted(void)
+{
+	struct spl_machine_param *param = spl_get_machine_params();
+	const int gpio = param->bad_wake_gpio;
+	int is_bad_wake;
+
+	/* We're a bad wakeup if the gpio was defined and was high */
+	is_bad_wake = ((gpio != -1) && gpio_get_value(gpio));
+
+	return !is_bad_wake;
+}