mirror of
git://projects.qi-hardware.com/iris.git
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101 lines
2.7 KiB
COBOL
101 lines
2.7 KiB
COBOL
#pypp 0
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// Iris: micro-kernel for a capability-based operating system.
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// boot-programs/nand.ccp: NAND driver.
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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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#define DELAY Iris::schedule
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#include "devices.hh"
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#define ARCH
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#include "arch.hh"
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#define debug Iris::debug
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#include "nand.hh"
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extern "C":
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extern char file_start, file_mid, file_end
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Iris::Num start ():
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//kdebug ("starting nand operation in 10 seconds\n")
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//Iris::sleep (10 * HZ)
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map_emc ()
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map_gpio ()
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// Arbitrary addresses where the pages are mapped.
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command = (volatile char *)0x15000
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address = (volatile char *)0x16000
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data = (volatile char *)0x17000
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Iris::Page data_page = Iris::my_memory.create_page ()
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Iris::Page command_page = Iris::my_memory.create_page ()
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Iris::Page address_page = Iris::my_memory.create_page ()
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unsigned base = 0x18000000
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data_page.alloc_physical (base, false, false)
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command_page.alloc_physical (base + 0x8000, false, false)
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address_page.alloc_physical (base + 0x10000, false, false)
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Iris::my_memory.map (data_page, (unsigned)data)
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Iris::my_memory.map (command_page, (unsigned)command)
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Iris::my_memory.map (address_page, (unsigned)address)
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Iris::free_cap (data_page)
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Iris::free_cap (command_page)
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Iris::free_cap (address_page)
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reset ()
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#if 1
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erase (0)
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char *source = &file_start
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unsigned a = 0
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while source < &file_mid:
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write (a, source)
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a += 0x800
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source += 0x800
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source = &file_mid
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a = 0x4000
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while source < &file_end:
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write (a, source)
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a += 0x800
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source += 0x800
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#endif
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char buffer[0x200]
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// Send nand contents to serial port.
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for unsigned a = 0; a < 0x400; a += 0x200:
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read (a, buffer)
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for unsigned s = 0; s < 0x8; ++s:
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for unsigned t = 0; t < 0x40; ++t:
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kdebug (" ")
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kdebug_num (buffer[s * 0x40 + t], 2)
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kdebug ("\n")
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kdebug ("\n")
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// Exit.
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return 0
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asm volatile ("\t.set noreorder\n"
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"\t.globl file_start\n"
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"\t.globl file_mid\n"
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"\t.globl file_end\n"
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"\t.text\n"
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"file_start:\n"
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"\t.incbin \"mips/nanonote/nand-boot.raw\"\n"
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"file_mid:\n"
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"\t.incbin \"iris-sd.raw\"\n"
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"file_end:\n"
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".set reorder")
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