mirror of
git://projects.qi-hardware.com/iris.git
synced 2025-04-21 12:27:27 +03:00
split off nanonote code, try to make it boot
This commit is contained in:
Bas Wijnen
61
mips/trendtac/Makefile.arch
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61
mips/trendtac/Makefile.arch
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# Iris: micro-kernel for a capability-based operating system.
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# mips/trendtac/Makefile.arch: board-specific parts of the build rules
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# Copyright 2009 Bas Wijnen <wijnen@debian.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (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, see <http://www.gnu.org/licenses/>.
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load = 0x80000000
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ARCH_CXXFLAGS = -DNUM_THREADS=3
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ARCH_CPPFLAGS = -Imips -Wa,-mips32
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CROSS = mipsel-linux-gnu-
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OBJDUMP = $(CROSS)objdump
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junk = mdebug.abi32 reginfo comment pdr
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OBJCOPYFLAGS = $(addprefix --remove-section=.,$(junk))
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arch_iris_sources = mips/interrupts.cc mips/arch.cc
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boot_sources = mips/init.cc
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arch_headers = mips/arch.hh mips/jz4730.hh
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boot_threads = init gpio lcd
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uimage:
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mips/boot.o: TARGET_FLAGS = -DMEMORY_SIZE = "128 << 20"
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mips/threadlist.o: $(boot_threads)
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mips/init.o: TARGET_FLAGS = -I/usr/include
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$(boot_threads): TARGET_FLAGS = -I.
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$(addprefix boot-programs/,$(addsuffix .cc,$(boot_threads))): boot-programs/devices.hh boot-programs/init.hh
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lcd: boot-programs/charset.data
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boot-programs/charset.data: boot-programs/charset
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$< > $@
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# Transform ':' into ';' so vim doesn't think there are errors.
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uimage: iris.raw.gz Makefile mips/Makefile.arch
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mkimage -A MIPS -O Linux -C gzip -a $(load) -e 0xa$(shell /bin/sh -c '$(OBJDUMP) -t iris | grep __start$$ | cut -b2-8') -n "Iris" -d $< $@ | sed -e 's/:/;/g'
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%.o:%.S Makefile Makefile.arch mips/arch.hh
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$(CC) $(CPPFLAGS) $(TARGET_FLAGS) -DKERNEL_STACK_SIZE=0x2000 -c $< -o $@
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# entry.o must be the first file. threadlist.o must be the first of the init objects (which can be freed after loading).
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iris: mips/entry.o $(subst .cc,.o,$(iris_sources)) mips/trendtac/threadlist.o mips/boot.o $(subst .cc,.o,$(boot_sources))
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$(LD) --omagic -Ttext $(load) $^ -o $@
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%.raw: %
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$(OBJCOPY) -S $(OBJCOPYFLAGS) -Obinary $< $@
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%.gz: %
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gzip < $< > $@
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ARCH_CLEAN_FILES = uimage $(boot_threads) mips/*.o boot-programs/charset.data iris iris.raw iris.raw.gz
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57
mips/trendtac/board.ccp
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57
mips/trendtac/board.ccp
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@@ -0,0 +1,57 @@
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#pypp 0
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// Iris: micro-kernel for a capability-based operating system.
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// mips/trendtac/board.ccp: trendtac-specific functions.
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// Copyright 2009 Bas Wijnen <wijnen@debian.org>
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (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, see <http://www.gnu.org/licenses/>.
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void board_init ():
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// Disable all gpio interrupts and alternate functions initially.
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for unsigned i = 0; i < 4; ++i:
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GPIO_GPIER (i) = 0
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GPIO_GPALR (i) = 0
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GPIO_GPAUR (i) = 0
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// Set up the rest of the hardware (copied from Linux).
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cpm_idle_mode ()
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cpm_enable_cko1 ()
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cpm_start_all ()
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harb_set_priority (0x08)
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dmac_enable_all_channels ()
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harb_usb0_uhc ()
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gpio_as_emc ()
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gpio_as_uart0 ()
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gpio_as_dma ()
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gpio_as_eth ()
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gpio_as_usb ()
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gpio_as_lcd_master ()
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gpio_as_ssi()
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gpio_as_msc ()
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gpio_as_gpio (GPIO_CAPS_PORT, GPIO_CAPS)
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gpio_as_gpio (GPIO_SCROLL_PORT, GPIO_SCROLL)
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gpio_as_gpio (GPIO_NUM_PORT, GPIO_NUM)
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gpio_as_gpio (GPIO_TP_LEFT_PORT, GPIO_TP_LEFT)
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gpio_as_gpio (GPIO_TP_RIGHT_PORT, GPIO_TP_RIGHT)
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// Start the operating system timer, and set it to give an interrupt immediately.
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// This is better, because the kernel starts with jumping into the idle task and
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// waiting for the first interrupt.
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unsigned latch = (JZ_EXTAL + (HZ >> 1)) / HZ
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ost_disable_all ()
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ost_set_mode (0, OST_TCSR_UIE | OST_TCSR_CKS_EXTAL)
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ost_set_reload (0, latch)
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ost_set_count (0, 1)
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ost_set_mode (0, OST_TCSR_UIE | OST_TCSR_CKS_EXTAL)
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ost_enable_channel (0)
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intc_unmask_irq (IRQ_OST0)
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4202
mips/trendtac/jz4730.hhp
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4202
mips/trendtac/jz4730.hhp
Normal file
File diff suppressed because it is too large
Load Diff
43
mips/trendtac/threadlist.S
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43
mips/trendtac/threadlist.S
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@@ -0,0 +1,43 @@
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// Iris: micro-kernel for a capability-based operating system.
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// mips/trendtac/threadlist.S: Kernel entry point, called by the boot loader.
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// Copyright 2009 Bas Wijnen <wijnen@debian.org>
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (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, see <http://www.gnu.org/licenses/>.
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.globl init_start
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.globl thread_start
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.set noreorder
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.balign 0x1000
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thread0:
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.incbin "init"
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.balign 0x1000
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thread1:
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.incbin "lcd"
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.balign 0x1000
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thread2:
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.incbin "gpio"
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thread3:
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// Everything from here may be freed after kernel initialization.
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init_start:
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thread_start:
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.word thread0
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.word thread1
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.word thread2
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.word thread3
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