MLK-10774-33 imx:mx6 add udc and fastboot support

Add udc and fastboot support

We did not use the upstream way.
Currently use CI_UDC and USB_GAGDET of upstream can make fastboot work,
but lack of flash operation, so we still use our way.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Signed-off-by: Nitin Garg <nitin.garg@freescale.com>
Signed-off-by: Ye.Li <B37916@freescale.com>

2 files changed, 81 insertions, 0 deletions

diff --git a/board/freescale/common/Makefile b/board/freescale/common/Makefile
index 7181cac..c9d4250 100644
--- a/board/freescale/common/Makefile
+++ b/board/freescale/common/Makefile
@@ -61,6 +61,9 @@ obj-$(CONFIG_VSC_CROSSBAR)    += vsc3316_3308.o
 obj-$(CONFIG_IDT8T49N222A)	+= idt8t49n222a_serdes_clk.o
 obj-$(CONFIG_ZM7300)		+= zm7300.o
 obj-$(CONFIG_POWER_PFUZE100)	+= pfuze.o
+ifdef CONFIG_FASTBOOT
+obj-${CONFIG_ANDROID_RECOVERY} += recovery.o
+endif
 
 obj-$(CONFIG_LS102XA_STREAM_ID)	+= ls102xa_stream_id.o
 
diff --git a/board/freescale/common/recovery.c b/board/freescale/common/recovery.c
new file mode 100644
index 0000000..e6f2137
--- /dev/null
+++ b/board/freescale/common/recovery.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2010-2014 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#include <common.h>
+#include <malloc.h>
+#include <recovery.h>
+#ifdef CONFIG_MXC_KPD
+#include <mxc_keyb.h>
+#endif
+#include <asm/imx-common/boot_mode.h>
+
+#ifdef CONFIG_MXC_KPD
+#define PRESSED_VOL_DOWN	0x01
+#define PRESSED_POWER	    0x02
+#define RECOVERY_KEY_MASK (PRESSED_VOL_DOWN | PRESSED_POWER)
+
+inline int test_key(int value, struct kpp_key_info *ki)
+{
+	return (ki->val == value) && (ki->evt == KDepress);
+}
+
+int check_key_pressing(void)
+{
+	struct kpp_key_info *key_info = NULL;
+	int state = 0, keys, i;
+
+	int ret = 0;
+
+	mxc_kpp_init();
+	/* due to glitch suppression circuit,
+	   wait sometime to let all keys scanned. */
+	udelay(1000);
+	keys = mxc_kpp_getc(&key_info);
+
+	printf("Detecting VOL_DOWN+POWER key for recovery(%d:%d) ...\n",
+		keys, keys ? key_info->val : 0);
+	if (keys > 1) {
+		for (i = 0; i < keys; i++) {
+			if (test_key(CONFIG_POWER_KEY, &key_info[i]))
+				state |= PRESSED_POWER;
+			else if (test_key(CONFIG_VOL_DOWN_KEY, &key_info[i]))
+				state |= PRESSED_VOL_DOWN;
+		}
+	}
+	if ((state & RECOVERY_KEY_MASK) == RECOVERY_KEY_MASK)
+		ret = 1;
+	if (key_info)
+		free(key_info);
+	return ret;
+}
+#else
+/* If not using mxc keypad, currently we will detect power key on board */
+int check_key_pressing(void)
+{
+	return 0;
+}
+#endif
+
+void setup_recovery_env(void)
+{
+	board_recovery_setup();
+}
+
+/* export to lib_arm/board.c */
+void check_recovery_mode(void)
+{
+	if (check_key_pressing()) {
+		puts("Fastboot: Recovery key pressing got!\n");
+		setup_recovery_env();
+	} else if (check_recovery_cmd_file()) {
+		puts("Fastboot: Recovery command file found!\n");
+		setup_recovery_env();
+	} else {
+		puts("Fastboot: Normal\n");
+	}
+}