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5f97f7f940
This adds support for the Atmel AVR32 architecture as well as the AT32AP7000 CPU and the AT32STK1000 development board. AVR32 is a new high-performance 32-bit RISC microprocessor core, designed for cost-sensitive embedded applications, with particular emphasis on low power consumption and high code density. The AVR32 architecture is not binary compatible with earlier 8-bit AVR architectures. The AVR32 architecture, including the instruction set, is described by the AVR32 Architecture Manual, available from http://www.atmel.com/dyn/resources/prod_documents/doc32000.pdf The Atmel AT32AP7000 is the first CPU implementing the AVR32 architecture. It features a 7-stage pipeline, 16KB instruction and data caches and a full Memory Management Unit. It also comes with a large set of integrated peripherals, many of which are shared with the AT91 ARM-based controllers from Atmel. Full data sheet is available from http://www.atmel.com/dyn/resources/prod_documents/doc32003.pdf while the CPU core implementation including caches and MMU is documented by the AVR32 AP Technical Reference, available from http://www.atmel.com/dyn/resources/prod_documents/doc32001.pdf Information about the AT32STK1000 development board can be found at http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3918 including a BSP CD image with an earlier version of this patch, development tools (binaries and source/patches) and a root filesystem image suitable for booting from SD card. Alternatively, there's a preliminary "getting started" guide available at http://avr32linux.org/twiki/bin/view/Main/GettingStarted which provides links to the sources and patches you will need in order to set up a cross-compiling environment for avr32-linux. This patch, as well as the other patches included with the BSP and the toolchain patches, is actively supported by Atmel Corporation. [dmccr@us.ibm.com: Fix more pxx_page macro locations] [bunk@stusta.de: fix `make defconfig'] Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Dave McCracken <dmccr@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
99 lines
3.3 KiB
C
99 lines
3.3 KiB
C
/* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
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Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000
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Free Software Foundation, Inc.
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This definition file is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation; either
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version 2, or (at your option) any later version.
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This definition file is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied
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warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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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,
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Boston, MA 02111-1307, USA. */
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/* Borrowed from gcc-3.4.3 */
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#define __BITS4 (W_TYPE_SIZE / 4)
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#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
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#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
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#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))
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#define count_leading_zeros(count, x) ((count) = __builtin_clz(x))
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#define __udiv_qrnnd_c(q, r, n1, n0, d) \
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do { \
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UWtype __d1, __d0, __q1, __q0; \
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UWtype __r1, __r0, __m; \
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__d1 = __ll_highpart (d); \
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__d0 = __ll_lowpart (d); \
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\
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__r1 = (n1) % __d1; \
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__q1 = (n1) / __d1; \
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__m = (UWtype) __q1 * __d0; \
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__r1 = __r1 * __ll_B | __ll_highpart (n0); \
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if (__r1 < __m) \
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{ \
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__q1--, __r1 += (d); \
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if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\
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if (__r1 < __m) \
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__q1--, __r1 += (d); \
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} \
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__r1 -= __m; \
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\
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__r0 = __r1 % __d1; \
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__q0 = __r1 / __d1; \
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__m = (UWtype) __q0 * __d0; \
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__r0 = __r0 * __ll_B | __ll_lowpart (n0); \
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if (__r0 < __m) \
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{ \
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__q0--, __r0 += (d); \
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if (__r0 >= (d)) \
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if (__r0 < __m) \
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__q0--, __r0 += (d); \
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} \
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__r0 -= __m; \
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\
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(q) = (UWtype) __q1 * __ll_B | __q0; \
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(r) = __r0; \
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} while (0)
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#define udiv_qrnnd __udiv_qrnnd_c
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#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
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do { \
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UWtype __x; \
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__x = (al) - (bl); \
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(sh) = (ah) - (bh) - (__x > (al)); \
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(sl) = __x; \
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} while (0)
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#define umul_ppmm(w1, w0, u, v) \
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do { \
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UWtype __x0, __x1, __x2, __x3; \
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UHWtype __ul, __vl, __uh, __vh; \
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\
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__ul = __ll_lowpart (u); \
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__uh = __ll_highpart (u); \
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__vl = __ll_lowpart (v); \
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__vh = __ll_highpart (v); \
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\
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__x0 = (UWtype) __ul * __vl; \
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__x1 = (UWtype) __ul * __vh; \
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__x2 = (UWtype) __uh * __vl; \
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__x3 = (UWtype) __uh * __vh; \
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\
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__x1 += __ll_highpart (__x0);/* this can't give carry */ \
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__x1 += __x2; /* but this indeed can */ \
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if (__x1 < __x2) /* did we get it? */ \
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__x3 += __ll_B; /* yes, add it in the proper pos. */ \
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\
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(w1) = __x3 + __ll_highpart (__x1); \
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(w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
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} while (0)
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