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Tegra's boot ROM supports a mode whereby code may be downloaded and flash programmed over a USB connection. On dev boards, this is typically entered by holding down a "force recovery" button and resetting the CPU. However, not all boards have such a button (one example is the Compulab Trimslice), so a method to enter RCM from software is useful. This change implements the command "enterrcm" to do this, and enables it for all Tegra boards by default. Even on boards other than Trimslice, controlling this over a UART may be useful, e.g. to allow simple remote control without the need for mechanical button actuators, or hooking up relays/... to the button. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
60 lines
2 KiB
Makefile
60 lines
2 KiB
Makefile
#
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# (C) Copyright 2010,2011 Nvidia Corporation.
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#
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# (C) Copyright 2000-2003
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# See file CREDITS for list of people who contributed to this
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# project.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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# MA 02111-1307 USA
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#
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# The AVP is ARMv4T architecture so we must use special compiler
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# flags for any startup files it might use.
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CFLAGS_arch/arm/cpu/armv7/tegra2/ap20.o += -march=armv4t
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CFLAGS_arch/arm/cpu/armv7/tegra2/clock.o += -march=armv4t
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CFLAGS_arch/arm/cpu/armv7/tegra2/warmboot_avp.o += -march=armv4t
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include $(TOPDIR)/config.mk
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LIB = $(obj)lib$(SOC).o
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SOBJS := lowlevel_init.o
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COBJS-y := ap20.o board.o clock.o funcmux.o pinmux.o sys_info.o timer.o
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COBJS-$(CONFIG_TEGRA_CLOCK_SCALING) += emc.o
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COBJS-$(CONFIG_TEGRA_PMU) += pmu.o
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COBJS-$(CONFIG_USB_EHCI_TEGRA) += usb.o
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COBJS-$(CONFIG_TEGRA2_LP0) += crypto.o warmboot.o warmboot_avp.o
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COBJS-$(CONFIG_CMD_ENTERRCM) += cmd_enterrcm.o
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COBJS := $(COBJS-y)
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SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
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OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS))
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all: $(obj).depend $(LIB)
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$(LIB): $(OBJS)
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$(call cmd_link_o_target, $(OBJS))
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#########################################################################
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# defines $(obj).depend target
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include $(SRCTREE)/rules.mk
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sinclude $(obj).depend
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#########################################################################
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