first and last commit

drivers/samsung/arm7iop/arm7.c

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+/*
+ * Test/debug code to mess with the arm7
+ */
+
+#include <debug.h>
+#include <sys.h>
+#include <sys/boot.h>
+#include <sys/menu.h>
+#include <lib/env.h>
+#include <lib/heap.h>
+#include <platform/gpio.h>
+#include <platform/memmap.h>
+#include <platform/soc/hwclocks.h>
+#include <platform/soc/arm7m.h>
+#include <target/gpiodef.h>
+
+#if WITH_MENU
+#if DEBUG_BUILD
+
+#define ARM7M_ALIGN		(1 << 12)
+#define ARM7M_ALIGN_MASK	(ARM7M_ALIGN - 1)
+
+int do_arm7_go(int argc, struct cmd_arg *args)
+{
+	addr_t	addr;
+
+	addr = env_get_uint("loadaddr", DEFAULT_LOAD_ADDRESS);
+
+	if (addr & ARM7M_ALIGN_MASK) {
+		dprintf(DEBUG_CRITICAL, "load address not on a page boundary, cannot remap\n");
+		return(-1);
+	}
+	dprintf(DEBUG_INFO, "configuring ARM7M for image @ 0x%08x\n", addr);
+
+	/* clock on */
+	clock_gate(CLK_ISP, true);
+	clock_gate(CLK_MSVDX, true);
+	clock_gate(CLK_ARM7, true);
+	clock_reset_device(CLK_ARM7);
+	
+	/* turn the arm7m off and reset it */
+	rARM7M_CTRL = 0;
+	rARM7M_CTRL = ARM7M_CTRL_RESET;
+
+	/* set up translation */
+	rARM7M_AT_BASE = addr;
+	rARM7M_AT_RANGE = 0x03ff0000;	/* give the ARM7 1MiB of DDR */
+
+	/* start */
+	rARM7M_CTRL = ARM7M_CTRL_ENABLE;
+
+	return(0);
+}
+
+MENU_COMMAND_DEBUG(arm7_go, do_arm7_go, "start ARM7M with a downloaded image", NULL);
+
+int do_arm7_stop(int argc, struct cmd_arg *args)
+{
+
+	/* turn the arm7m off and reset it */
+	rARM7M_CTRL = 0;
+	rARM7M_CTRL = ARM7M_CTRL_RESET;
+
+	/* clock off */
+	clock_gate(CLK_ARM7, false);
+	
+	return(0);
+}
+
+MENU_COMMAND_DEBUG(arm7_stop, do_arm7_stop, "stop the arm7", NULL);
+
+#ifdef GPIO_ARM7_DEBUG
+
+int do_arm7_jtag_select(int argc, struct cmd_arg *args)
+{
+#if (GPIO_ARM7_DEBUG_ARM7 >= 0)
+	gpio_configure_out(GPIO_ARM7_DEBUG, GPIO_ARM7_DEBUG_ARM7);
+#else
+	gpio_configure_in(GPIO_ARM7_DEBUG);
+#endif
+	return(0);
+}
+
+MENU_COMMAND_DEVELOPMENT(arm7_jtag, do_arm7_jtag_select, "switch JTAG from Cortex to ARM7M", NULL);
+
+int do_cortex_jtag_select(int argc, struct cmd_arg *args)
+{
+#if (GPIO_ARM7_DEBUG_CORTEX >= 0)
+	gpio_configure_out(GPIO_ARM7_DEBUG, GPIO_ARM7_DEBUG_CORTEX);
+#else
+	gpio_configure_in(GPIO_ARM7_DEBUG);
+#endif
+	return(0);
+}
+
+MENU_COMMAND_DEVELOPMENT(cortex_jtag, do_cortex_jtag_select, "switch JTAG from ARM7M to Cortex", NULL);
+
+#endif /* GPIO_ARM7_DEBUG */
+
+#endif /* DEBUG_BUILD */
+#endif /* WITH_MENU */

drivers/samsung/arm7iop/rules.mk

@@ -0,0 +1,14 @@
+# Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
+#
+# This document is the property of Apple Computer, Inc.
+# It is considered confidential and proprietary.
+#
+# This document may not be reproduced or transmitted in any form,
+# in whole or in part, without the express written permission of
+# Apple Computer, Inc.
+#
+LOCAL_DIR	:=	$(GET_LOCAL_DIR)
+
+ALL_OBJS	+=	${LOCAL_DIR}/arm7.o
+
+OPTIONS		+=	WITH_ARM7_DEBUG=1