mirror of
git://projects.qi-hardware.com/iris.git
synced 2024-12-29 02:59:53 +02:00
start nand-boot; wrap startup
This commit is contained in:
Bas Wijnen
parent
7659673f33
commit
e4151e737b
55
init.config
55
init.config
@ -1,44 +1,45 @@
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# driver <name> = '<filename>' load a file into memory to be run priviledged.
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# program <name> = '<filename>' load a file into memory to be run normally.
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driver driver_lcd = "lcd.elf"
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driver driver_buzzer = "buzzer.elf"
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#driver driver_lcd = "lcd.elf"
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#driver driver_buzzer = "buzzer.elf"
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driver driver_gpio = "gpio.elf"
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program alarm = "alarm.elf"
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program gui = "gui.elf"
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#program alarm = "alarm.elf"
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#program gui = "gui.elf"
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driver nand = "nand.elf"
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driver sdmmc = "sd+mmc.elf"
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program partition = "partition.elf"
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program fat = "fat.elf"
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program test = "test.elf"
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#driver sdmmc = "sd+mmc.elf"
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#program partition = "partition.elf"
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#program fat = "fat.elf"
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#program test = "test.elf"
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#driver rtc = "rtc.elf"
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# receive <name> / <type> [, <index>] = <cap> prepare to accept a capability from a named program.
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receive driver_lcd / Display = display
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receive driver_lcd / Setting = display_bright
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receive driver_buzzer / Buzzer = buzzer
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#receive driver_lcd / Display = display
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#receive driver_lcd / Setting = display_bright
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#receive driver_buzzer / Buzzer = buzzer
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receive driver_gpio / Keyboard , 0 = keyboard
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receive driver_gpio / Keyboard , 1 = sysreq
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receive driver_gpio / Event = sdmmc_gpio
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receive alarm / UI = ui
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receive sdmmc / WString = sdmmc
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receive partition / WString, 0 = p0
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receive partition / WString, 1 = p1
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receive partition / WString, 2 = p2
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receive partition / WString, 3 = p3
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receive fat / Directory = root
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#receive alarm / UI = ui
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#receive sdmmc / WString = sdmmc
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#receive partition / WString, 0 = p0
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#receive partition / WString, 1 = p1
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#receive partition / WString, 2 = p2
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#receive partition / WString, 3 = p3
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#receive fat / Directory = root
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# sysreq <cap> use a capability as the system request keyboard.
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sysreq sysreq
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# give <name> / <type> [, <index>] = <cap> give this capability to this program when it requests it.
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give gui / UI = ui
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give gui / Display = display
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give gui / Setting = display_bright
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give gui / Buzzer = buzzer
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give gui / Keyboard = keyboard
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give sdmmc / Event = sdmmc_gpio
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give partition / WString = sdmmc
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give fat / WString = p0
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give test / Directory = root
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#give gui / UI = ui
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#give gui / Display = display
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#give gui / Setting = display_bright
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#give gui / Buzzer = buzzer
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#give gui / Keyboard = keyboard
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#give sdmmc / Event = sdmmc_gpio
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#give partition / WString = sdmmc
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#give fat / WString = p0
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#give test / Directory = root
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# include <file> include a file as another config file.
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@ -556,6 +556,8 @@ static void thread_invoke (unsigned cmd, unsigned target, Iris::Num protected_da
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return
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case Iris::Thread::PRIV_REBOOT & REQUEST_MASK:
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arch_reboot ()
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case Iris::Thread::PRIV_POWEROFF & REQUEST_MASK:
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arch_poweroff ()
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case Iris::Thread::PRIV_PANIC & REQUEST_MASK:
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if c->data[1].l == 0xdeaddead:
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dbg_code.l = 1
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3
iris.hhp
3
iris.hhp
@ -322,6 +322,7 @@ namespace Iris:
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SET_OWNER
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DBG_SEND
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PRIV_REBOOT
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PRIV_POWEROFF
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PRIV_PANIC
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// These get/set_info are not arch-specific.
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enum info_type:
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@ -578,6 +579,8 @@ namespace Iris:
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my_thread.call (CAP_MASTER_DIRECT | Thread::DBG_SEND, Num (code, bits))
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inline void reboot ():
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my_thread.call (CAP_MASTER_DIRECT | Thread::PRIV_REBOOT)
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inline void poweroff ():
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my_thread.call (CAP_MASTER_DIRECT | Thread::PRIV_POWEROFF)
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void Receiver::sleep (unsigned value):
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set_alarm (value)
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@ -322,6 +322,7 @@ void kPage_arch_init (kPage *page)
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void kPage_arch_update_mapping (kPage *page)
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void arch_register_interrupt (unsigned num, kReceiverP r)
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void arch_reboot ()
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void arch_poweroff ()
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void arch_uncache_page (unsigned page)
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#define assert(x) do { if (!(x)) panic (__LINE__, "assertion failed"); } while (0)
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@ -17,7 +17,22 @@
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start_load = 0xa0600000
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load = 0x80000000
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#UDC_BOOT = comment this out for nand boot
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UDC_BOOT = comment this out for nand boot
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ifdef UDC_BOOT
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boot_threads = $(standard_boot_programs) $(udc_boot_programs)
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threadlist = mips/nanonote/threadlist-udc
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ARCH_CXXFLAGS = -DNUM_THREADS=2
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all: mips/nanonote/nand-boot.raw test
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else
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boot_threads = $(standard_boot_programs) $(sd_boot_programs)
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threadlist = mips/nanonote/threadlist-sd
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ARCH_CXXFLAGS = -DNUM_THREADS=4
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all: mips/nanonote/nand-boot.raw iris-sd.tar
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iris-sd.tar: $(addprefix fs/,$(addsuffix .elf,$(programs))) mips/start.raw.gz fs/init.config
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mkimage -A mips -T kernel -a $(start_load) -e a$(shell /bin/sh -c '$(OBJDUMP) -t mips/start.elf | grep __start$$ | cut -b2-8') -n Iris -d mips/start.raw.gz fs/uimage | sed -e 's/:/;/g'
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cd fs && tar cvf ../$@ uimage init.config $(addsuffix .elf,$(programs)) --dereference
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endif
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ARCH_CPPFLAGS = -I. -Imips -Imips/nanonote -Wa,-mips32 -DNANONOTE -DUSE_SERIAL
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CROSS = mipsel-linux-gnu-
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@ -26,6 +41,9 @@ junk = mdebug.abi32 reginfo comment pdr
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OBJCOPYFLAGS = $(addprefix --remove-section=.,$(junk))
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iris.elf: LDFLAGS = --omagic -Ttext $(load)
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mips/start.elf: LDFLAGS = --omagic -Ttext $(start_load)
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mips/nanonote/nand-boot.elf: LDFLAGS = --omagic -Ttext 0x80000000
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source/nand.o: mips/nanonote/nand-boot.raw
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arch_iris_sources = mips/interrupts.cc mips/arch.cc
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boot_sources = mips/init.cc mips/nanonote/board.cc
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@ -34,22 +52,7 @@ udc_boot_programs = udc
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sd_boot_programs = sd+mmc partition fat
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standard_boot_programs = bootinit
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programs = init gpio lcd bsquare ball buzzer metronome elfrun alarm gui nand test $(udc_boot_programs) $(sd_boot_programs) $(standard_boot_programs)
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ifdef UDC_BOOT
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boot_threads = $(standard_boot_programs) $(udc_boot_programs)
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threadlist = mips/nanonote/threadlist-udc
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ARCH_CXXFLAGS = -DNUM_THREADS=2
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all: test
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else
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boot_threads = $(standard_boot_programs) $(sd_boot_programs)
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threadlist = mips/nanonote/threadlist-sd
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ARCH_CXXFLAGS = -DNUM_THREADS=4
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all: iris-sd.tar
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iris-sd.tar: $(addprefix fs/,$(addsuffix .elf,$(programs))) mips/start.raw.gz fs/init.config
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mkimage -A mips -T kernel -a $(start_load) -e a$(shell /bin/sh -c '$(OBJDUMP) -t mips/start.elf | grep __start$$ | cut -b2-8') -n Iris -d mips/start.raw.gz fs/uimage | sed -e 's/:/;/g'
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cd fs && tar cvf ../$@ uimage init.config $(addsuffix .elf,$(programs)) --dereference
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endif
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programs = init gpio lcd bsquare ball buzzer metronome elfrun alarm rtc gui nand test $(udc_boot_programs) $(sd_boot_programs) $(standard_boot_programs)
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mips/start.o:mips/start.S Makefile Makefile.arch iris.raw
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$(CC) $(CPPFLAGS) -DSTART=0xa$(shell /bin/sh -c '$(OBJDUMP) -t iris.elf | grep __start$$ | cut -b2-8') -c $< -o $@
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@ -94,3 +94,22 @@ void arch_reboot ():
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wdt_start ()
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// Wait for wdt to trigger reboot.
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while true:
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void arch_poweroff ():
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// Wait for serial port to be done.
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while !(UART0_LSR & UARTLSR_TEMT):
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// Power off.
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// Make sure the rtc is running.
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cpm_start_rtc ()
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while !rtc_write_ready ():
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rtc_enabled ()
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while !rtc_write_ready ():
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rtc_power_down ()
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// Wait for power down to work.
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while !rtc_write_ready ():
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// Delay a bit more.
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for unsigned i = 0; i < 1000; ++i:
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gpio_set (0, 0)
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// Fall back to reboot.
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kdebug ("Power down failed! Rebooting instead.\n")
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arch_reboot ()
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@ -117,7 +117,7 @@ static void __map_io (unsigned physical, unsigned mapping):
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#define map_intc() do { __map_io (INTC_PHYSICAL, INTC_BASE); } while (0)
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#define map_tcu() do { __map_io (TCU_PHYSICAL, TCU_BASE); } while (0)
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#define map_wdt() do { __map_io (WDT_PHYSICAL, WDT_BASE); } while (0)
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#define map_rtc() do { __map_io (RTC_PHYSICAL, RTC_BASE); } while (1)
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#define map_rtc() do { __map_io (RTC_PHYSICAL, RTC_BASE); } while (0)
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#define map_gpio() do { __map_io (GPIO_PHYSICAL, GPIO_BASE); } while (0)
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#define map_aic() do { __map_io (AIC_PHYSICAL, AIC_BASE); } while (0)
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#define map_msc() do { __map_io (MSC_PHYSICAL, MSC_BASE); } while (0)
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207
mips/nanonote/nand-boot.ccp
Normal file
207
mips/nanonote/nand-boot.ccp
Normal file
@ -0,0 +1,207 @@
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#pypp 0
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// Iris: micro-kernel for a capability-based operating system.
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// mips/nanonote/nand-boot.ccp: standalone program for booting from nand.
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// Copyright 2010 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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// The following defines are taken from mtd/nand.h in the Linux source.
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asm volatile ("\t.set noreorder\n"
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"\t.text\n"
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"\t.globl __start\n"
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"\t.word ~0\n"
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"__start:\n"
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"\tbal 1f\n"
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"__hack_label:\n"
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"\tnop\n"
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"\t.word _gp\n"
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"1:\n"
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"\tlw $gp, 0($ra)\n"
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"\tla $sp, stack + 0x1000\n"
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"\tla $t9, nandboot_start\n"
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"\tjr $t9\n"
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"\tnop\n"
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"\t.set reorder")
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#define __KERNEL__
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#include <jz4740.hh>
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// Standard NAND flash commands
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#define CMD_READ0 0
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#define CMD_READ1 1
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#define CMD_RNDOUT 5
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#define CMD_PAGEPROG 0x10
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#define CMD_READOOB 0x50
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#define CMD_ERASE1 0x60
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#define CMD_STATUS 0x70
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#define CMD_STATUS_MULTI 0x71
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#define CMD_SEQIN 0x80
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#define CMD_RNDIN 0x85
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#define CMD_READID 0x90
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#define CMD_ERASE2 0xd0
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#define CMD_RESET 0xff
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// Extended commands for large page devices
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#define CMD_READSTART 0x30
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#define CMD_RNDOUTSTART 0xE0
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#define CMD_CACHEDPROG 0x15
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// Status bits
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#define STATUS_FAIL 0x01
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#define STATUS_FAIL_N1 0x02
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#define STATUS_TRUE_READY 0x20
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#define STATUS_READY 0x40
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#define STATUS_WP 0x80
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static volatile char *command
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static volatile char *address
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static volatile char *data
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static unsigned page_bits
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static unsigned redundant_bits
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static unsigned block_bits
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static unsigned word_size
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static void unbusy ():
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while !(gpio_get_port (2) & (1 << 30)):
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// Do nothing.
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// Delay.
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for unsigned i = 0; i < 1000; ++i:
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gpio_set (0, 0)
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static void addr (unsigned d):
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unbusy ()
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*address = d
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unbusy ()
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static void cmd (unsigned d):
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unbusy ()
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*command = d
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unbusy ()
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static void wdata (unsigned d):
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unbusy ()
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*data = d
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unbusy ()
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static unsigned rdata ():
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unbusy ()
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unsigned ret = *data
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unbusy ()
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return ret
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// Reset nand controller.
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static void reset ():
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unsigned base = 0xa0000000 + 0x18000000
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data = (volatile char *)base
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command = (volatile char *)(base + 0x8000)
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address = (volatile char *)(base + 0x10000)
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// Set up.
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gpio_as_nand ()
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EMC_NFCSR = EMC_NFCSR_NFE1 | EMC_NFCSR_NFCE1
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// Reset nand.
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cmd (CMD_RESET)
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cmd (CMD_READID)
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addr (0)
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unsigned d = rdata ()
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//unsigned maker = d
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d = rdata ()
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//unsigned device = d
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d = rdata ()
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//unsigned internal_chip_number = 1 << (d & 0x3)
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//unsigned cell_type = 2 << ((d >> 2) & 0x3)
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//unsigned simultaneously_programmed_pages = 1 << ((d >> 4) & 0x3)
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//bool can_interleave_program_between_chips = d & 0x40
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//bool can_cache_program = d & 0x80
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d = rdata ()
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page_bits = 10 + (d & 3)
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redundant_bits = (d & 4 ? 4 : 3)
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block_bits = 16 + ((d >> 4) & 3)
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word_size = (d & 0x40 ? 16 : 8)
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//unsigned serial_access_minimum = (d & 0x80 ? 25 : 50)
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d = rdata ()
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//unsigned num_planes = 1 << ((d >> 2) & 3)
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//unsigned plane_bits = 26 + ((d >> 4) & 7)
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// Read 512 bytes from nand and store them into buffer. a must be aligned.
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// Return value is true if the oob claims there is valid data.
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static bool read (unsigned a, char *buffer):
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unsigned column = a & ((1 << page_bits) - 1)
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unsigned row = a >> page_bits
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cmd (CMD_READ0)
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addr (column)
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addr (column >> 8)
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addr (row)
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addr (row >> 8)
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addr (row >> 16)
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cmd (CMD_READSTART)
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EMC_NFECR = EMC_NFECR_ECCE | EMC_NFECR_RS | EMC_NFECR_RS_DECODING | EMC_NFECR_ERST
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for unsigned t = 0; t < 0x200; ++t:
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buffer[t] = rdata ()
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EMC_NFECR = EMC_NFECR_RS | EMC_NFECR_RS_DECODING
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char error[9]
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// Spare space (starts at 1 << page_bits)
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// 0: unused
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// 2: detect valid data (at least 1 byte == 0 means valid)
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// 5: unused
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// 6: 9-byte ecc of 1st 512 bytes
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// 15: 9-byte ecc of 2nd 512 bytes
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// 24: 9-byte ecc of 3rd 512 bytes
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// 33: 9-byte ecc of 4th 512 bytes
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// 42: unused
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// 64: end of space
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unsigned validcol = (1 << page_bits) + 2
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bool valid = false
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cmd (CMD_RNDOUT)
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addr (validcol)
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addr (validcol >> 8)
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cmd (CMD_RNDOUTSTART)
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for unsigned t = 0; t < 3; ++t:
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valid = rdata () == 0 || valid
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unsigned errcol = (1 << page_bits) + (column >> 9) * 9 + 6
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cmd (CMD_RNDOUT)
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addr (errcol)
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addr (errcol >> 8)
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cmd (CMD_RNDOUTSTART)
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for unsigned t = 0; t < 9; ++t:
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error[t] = rdata ()
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EMC_NFPAR (0) = ((unsigned *)error)[0]
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EMC_NFPAR (1) = ((unsigned *)error)[1]
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EMC_NFPAR (2) = error[9]
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EMC_NFECR = EMC_NFECR_ECCE | EMC_NFECR_RS | EMC_NFECR_RS_DECODING | EMC_NFECR_PRDY
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while !(EMC_NFINTS & EMC_NFINTS_DECF):
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// Do nothing.
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unsigned errs = (EMC_NFINTS & EMC_NFINTS_ERRCNT_MASK) >> EMC_NFINTS_ERRCNT_BIT
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for unsigned i = 0; i < errs; ++i:
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buffer[EMC_NFERR (i) >> 16] ^= EMC_NFERR (i) & 0xff
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extern "C":
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void nandboot_start ():
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reset ()
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// Load contents of nand flash (from 0x4000) into 0xa0600000;
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unsigned a = 0x4000
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unsigned target = 0xa0600000
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while read (a, (char *)target):
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a += 0x200
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target += 0x200
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// Then jump to 0xa0600000.
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return ((void (*)())0xa0600000) ()
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|
||||
unsigned char stack[0x1000]
|
||||
|
||||
unsigned __gxx_personality_v0
|
||||
@ -472,8 +472,8 @@ Iris::Num start ():
|
||||
if Iris::recv.protected_data.l == SYSREQ:
|
||||
if Iris::recv.data[0].l & Iris::Keyboard::RELEASE:
|
||||
continue
|
||||
kdebug ("sysreq event: rebooting device\n")
|
||||
Iris::reboot ()
|
||||
kdebug ("sysreq event: powering device off\n")
|
||||
Iris::poweroff ()
|
||||
continue
|
||||
Program *caller = (Program *)Iris::recv.protected_data.l
|
||||
switch Iris::recv.data[0].l:
|
||||
|
||||
154
source/nand.ccp
154
source/nand.ccp
@ -24,49 +24,29 @@
|
||||
|
||||
// Standard NAND flash commands
|
||||
#define CMD_READ0 0
|
||||
#define CMD_READ1 1
|
||||
#define CMD_RNDOUT 5
|
||||
#define CMD_PAGEPROG 0x10
|
||||
#define CMD_READOOB 0x50
|
||||
#define CMD_ERASE1 0x60
|
||||
#define CMD_STATUS 0x70
|
||||
#define CMD_STATUS_MULTI 0x71
|
||||
#define CMD_SEQIN 0x80
|
||||
#define CMD_RNDIN 0x85
|
||||
#define CMD_READSTART 0x30
|
||||
|
||||
#define CMD_READID 0x90
|
||||
#define CMD_ERASE2 0xd0
|
||||
|
||||
#define CMD_RESET 0xff
|
||||
|
||||
// Extended commands for large page devices
|
||||
#define CMD_READSTART 0x30
|
||||
#define CMD_SEQIN 0x80
|
||||
#define CMD_PAGEPROG 0x10
|
||||
|
||||
#define CMD_ERASE1 0x60
|
||||
#define CMD_ERASE2 0xd0
|
||||
|
||||
#define CMD_RNDIN 0x85
|
||||
|
||||
#define CMD_RNDOUT 5
|
||||
#define CMD_RNDOUTSTART 0xE0
|
||||
#define CMD_CACHEDPROG 0x15
|
||||
|
||||
// Extended commands for AG-AND device
|
||||
// Note: the command for NAND_CMD_DEPLETE1 is really 0x00 but
|
||||
// there is no way to distinguish that from NAND_CMD_READ0
|
||||
// until the remaining sequence of commands has been completed
|
||||
// so add a high order bit and mask it off in the command.
|
||||
#define CMD_DEPLETE1 0x100
|
||||
#define CMD_DEPLETE2 0x38
|
||||
#define CMD_STATUS_MULTI 0x71
|
||||
#define CMD_STATUS_ERROR 0x72
|
||||
// multi-bank error status (banks 0-3)
|
||||
#define CMD_STATUS_ERROR0 0x73
|
||||
#define CMD_STATUS_ERROR1 0x74
|
||||
#define CMD_STATUS_ERROR2 0x75
|
||||
#define CMD_STATUS_ERROR3 0x76
|
||||
#define CMD_STATUS_RESET 0x7f
|
||||
#define CMD_STATUS_CLEAR 0xff
|
||||
|
||||
#define CMD_NONE -1
|
||||
#define CMD_STATUS 0x70
|
||||
|
||||
// Status bits
|
||||
#define STATUS_FAIL 0x01
|
||||
#define STATUS_FAIL_N1 0x02
|
||||
#define STATUS_TRUE_READY 0x20
|
||||
#define STATUS_READY 0x40
|
||||
#define STATUS_WP 0x80
|
||||
#define STATUS_WRITABLE 0x80
|
||||
|
||||
static volatile char *command
|
||||
static volatile char *address
|
||||
@ -154,21 +134,12 @@ static void reset ():
|
||||
//unsigned num_planes = 1 << ((d >> 2) & 3)
|
||||
//unsigned plane_bits = 26 + ((d >> 4) & 7)
|
||||
|
||||
static void read (unsigned a, char *buffer):
|
||||
static bool read (unsigned a, char *buffer):
|
||||
unsigned column = a & ((1 << page_bits) - 1)
|
||||
unsigned row = a >> page_bits
|
||||
//Iris::debug ("reading: %x/%x/%x: ", a, row, column)
|
||||
cmd (CMD_READ0)
|
||||
addr (column)
|
||||
addr (column >> 8)
|
||||
addr (row)
|
||||
addr (row >> 8)
|
||||
addr (row >> 16)
|
||||
cmd (CMD_READSTART)
|
||||
EMC_NFECR = EMC_NFECR_ECCE | EMC_NFECR_RS | EMC_NFECR_RS_DECODING | EMC_NFECR_ERST
|
||||
for unsigned t = 0; t < 0x200; ++t:
|
||||
buffer[t] = rdata ()
|
||||
char error[9]
|
||||
// Read oob information first.
|
||||
char error[12]
|
||||
// Spare space (starts at 1 << page_bits)
|
||||
// 0: unused
|
||||
// 2: detect valid data (at least 1 byte == 0 means valid)
|
||||
@ -179,13 +150,35 @@ static void read (unsigned a, char *buffer):
|
||||
// 33: 9-byte ecc of 4th 512 bytes
|
||||
// 42: unused
|
||||
// 64: end of space
|
||||
unsigned errcol = (1 << page_bits) + (column >> 9) * 9 + 6
|
||||
unsigned col = (1 << page_bits) + 2
|
||||
cmd (CMD_READ0)
|
||||
addr (col)
|
||||
addr (col >> 8)
|
||||
addr (row)
|
||||
addr (row >> 8)
|
||||
addr (row >> 16)
|
||||
cmd (CMD_READSTART)
|
||||
bool valid = false
|
||||
for unsigned t = 0; t < 3; ++t:
|
||||
if rdata () == 0:
|
||||
valid = true
|
||||
break
|
||||
if !valid:
|
||||
return false
|
||||
col = (1 << page_bits) + 6 + 9 * (column >> 9)
|
||||
cmd (CMD_RNDOUT)
|
||||
addr (errcol)
|
||||
addr (errcol >> 8)
|
||||
addr (col)
|
||||
addr (col >> 8)
|
||||
cmd (CMD_RNDOUTSTART)
|
||||
for unsigned t = 0; t < 9; ++t:
|
||||
error[t] = rdata ()
|
||||
cmd (CMD_RNDOUT)
|
||||
addr (column)
|
||||
addr (column >> 8)
|
||||
cmd (CMD_RNDOUTSTART)
|
||||
EMC_NFECR = EMC_NFECR_ECCE | EMC_NFECR_RS | EMC_NFECR_RS_DECODING | EMC_NFECR_ERST
|
||||
for unsigned t = 0; t < 0x200; ++t:
|
||||
buffer[t] = rdata ()
|
||||
EMC_NFPAR (0) = ((unsigned *)error)[0]
|
||||
EMC_NFPAR (1) = ((unsigned *)error)[1]
|
||||
EMC_NFPAR (2) = error[9]
|
||||
@ -198,24 +191,39 @@ static void read (unsigned a, char *buffer):
|
||||
buffer[EMC_NFERR (i) >> 16] ^= EMC_NFERR (i) & 0xff
|
||||
|
||||
static void write (unsigned a, char *buffer):
|
||||
kdebug_line ()
|
||||
unsigned row = a >> page_bits
|
||||
kdebug_line ()
|
||||
//Iris::debug ("writing: %x/%x: ", a, row)
|
||||
cmd (CMD_SEQIN)
|
||||
kdebug_line ()
|
||||
addr (0)
|
||||
kdebug_line ()
|
||||
addr (0)
|
||||
kdebug_line ()
|
||||
addr (row)
|
||||
kdebug_line ()
|
||||
addr (row >> 8)
|
||||
kdebug_line ()
|
||||
addr (row >> 16)
|
||||
char ecc[4][9]
|
||||
kdebug_line ()
|
||||
char ecc[4][12]
|
||||
for unsigned i = 0; i < 0x4; ++i:
|
||||
kdebug_line ()
|
||||
EMC_NFECR = EMC_NFECR_ECCE | EMC_NFECR_RS | EMC_NFECR_RS_ENCODING | EMC_NFECR_ERST
|
||||
Iris::debug ("writing data from %x\n", (unsigned)buffer + i * 0x200)
|
||||
for unsigned j = 0; j < 0x200; ++j:
|
||||
wdata (buffer[i * 0x200 + j])
|
||||
kdebug_line ()
|
||||
while !(EMC_NFINTS & EMC_NFINTS_ENCF):
|
||||
Iris::schedule ()
|
||||
kdebug_line ()
|
||||
((unsigned *)ecc[i])[0] = EMC_NFPAR (0)
|
||||
kdebug_line ()
|
||||
((unsigned *)ecc[i])[1] = EMC_NFPAR (1)
|
||||
kdebug_line ()
|
||||
ecc[i][9] = EMC_NFPAR (2)
|
||||
kdebug_line ()
|
||||
// Spare space (starts at 1 << page_bits)
|
||||
// 0: unused
|
||||
// 2: detect valid data (at least 1 byte == 0 means valid)
|
||||
@ -228,10 +236,13 @@ static void write (unsigned a, char *buffer):
|
||||
// 64: end of space
|
||||
for unsigned i = 0; i < 6; ++i:
|
||||
wdata (0)
|
||||
kdebug_line ()
|
||||
for unsigned i = 0; i < 4; ++i:
|
||||
for unsigned j = 0; j < 9; ++j:
|
||||
wdata (ecc[i][j])
|
||||
kdebug_line ()
|
||||
cmd (CMD_PAGEPROG)
|
||||
kdebug_line ()
|
||||
Iris::debug ("nand program %d done\n", a)
|
||||
|
||||
static void erase (unsigned a):
|
||||
@ -243,9 +254,12 @@ static void erase (unsigned a):
|
||||
cmd (CMD_ERASE2)
|
||||
Iris::debug ("nand erase %d done\n", a)
|
||||
|
||||
extern "C":
|
||||
extern char file_start, file_end
|
||||
|
||||
Iris::Num start ():
|
||||
kdebug ("starting nand operation in 10 seconds\n")
|
||||
Iris::sleep (10 * HZ)
|
||||
//kdebug ("starting nand operation in 10 seconds\n")
|
||||
//Iris::sleep (10 * HZ)
|
||||
map_emc ()
|
||||
map_gpio ()
|
||||
|
||||
@ -256,18 +270,42 @@ Iris::Num start ():
|
||||
|
||||
reset ()
|
||||
|
||||
|
||||
#if 0
|
||||
erase (0)
|
||||
kdebug_line ()
|
||||
char *source = &file_start
|
||||
kdebug_line ()
|
||||
unsigned a = 0x0000
|
||||
kdebug_line ()
|
||||
while source < &file_end:
|
||||
kdebug_line ()
|
||||
write (a, source)
|
||||
a += 0x800
|
||||
source += 0x800
|
||||
kdebug_line ()
|
||||
#endif
|
||||
|
||||
char buffer[0x800]
|
||||
|
||||
//erase (0)
|
||||
|
||||
kdebug_line ()
|
||||
// Send nand contents to serial port.
|
||||
for unsigned a = 0; a < 0x4000; a += 0x200:
|
||||
for unsigned a = 0; a < 0x2000; a += 0x200:
|
||||
read (a, buffer)
|
||||
for unsigned s = 0; s < 0x10; ++s:
|
||||
for unsigned t = 0; t < 0x20; ++t:
|
||||
for unsigned s = 0; s < 0x8; ++s:
|
||||
for unsigned t = 0; t < 0x40; ++t:
|
||||
kdebug (" ")
|
||||
kdebug_num (buffer[s * 0x20 + t], 2)
|
||||
kdebug_num (buffer[s * 0x40 + t], 2)
|
||||
kdebug ("\n")
|
||||
kdebug ("\n")
|
||||
// Exit.
|
||||
return 0
|
||||
|
||||
asm volatile ("\t.set noreorder\n"
|
||||
"\t.globl file_start\n"
|
||||
"\t.globl file_end\n"
|
||||
"\t.text\n"
|
||||
"file_start:\n"
|
||||
"\t.incbin \"mips/nanonote/nand-boot.raw\"\n"
|
||||
"file_end:\n"
|
||||
".set reorder")
|
||||
|
||||
58
source/rtc.ccp
Normal file
58
source/rtc.ccp
Normal file
@ -0,0 +1,58 @@
|
||||
#pypp 0
|
||||
// Iris: micro-kernel for a capability-based operating system.
|
||||
// source/rtc.ccp: real-time clock driver.
|
||||
// Copyright 2010 Bas Wijnen <wijnen@debian.org>
|
||||
//
|
||||
// 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, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// 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, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
#include "devices.hh"
|
||||
#define ARCH
|
||||
#include "arch.hh"
|
||||
|
||||
static void ready ():
|
||||
while !rtc_write_ready ():
|
||||
Iris::schedule ()
|
||||
|
||||
static unsigned get_second ():
|
||||
ready ()
|
||||
unsigned ret = rtc_get_second ()
|
||||
unsigned r2
|
||||
while true:
|
||||
ready ()
|
||||
r2 = rtc_get_second ()
|
||||
if ret == r2:
|
||||
return ret
|
||||
kdebug ("ret != r2\n")
|
||||
ret = r2
|
||||
|
||||
Iris::Num start ():
|
||||
map_cpm ()
|
||||
map_rtc ()
|
||||
cpm_start_rtc ()
|
||||
ready ()
|
||||
rtc_enabled ()
|
||||
ready ()
|
||||
rtc_set_nc1Hz_val (RTC_CLOCK)
|
||||
ready ()
|
||||
rtc_enable_1Hz_irq ()
|
||||
rtc_clear_alarm_flag ()
|
||||
rtc_set_hwfcr_val (0)
|
||||
while true:
|
||||
ready ()
|
||||
rtc_clear_1Hz_flag ()
|
||||
ready ()
|
||||
Iris::register_interrupt (IRQ_RTC)
|
||||
Iris::wait ()
|
||||
kdebug ("tick\n")
|
||||
return 0
|
||||
Loading…
Reference in New Issue
Block a user