112 lines
3.7 KiB
C
112 lines
3.7 KiB
C
/*-
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* Copyright (C) 2008 MARVELL INTERNATIONAL LTD.
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* All rights reserved.
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*
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* Developed by Semihalf.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of MARVELL nor the names of contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <machine/fdt.h>
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#include <arm/mv/mvreg.h>
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#include <arm/mv/mvvar.h>
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#include <arm/mv/mvwin.h>
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/*
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* Virtual address space layout:
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* -----------------------------
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* 0x0000_0000 - 0xBFFF_FFFF : User Process (3 GB)
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* 0xC000_0000 - virtual_avail : Kernel Reserved (text, data, page tables,
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* : stack etc.)
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* virtual-avail - 0xEFFF_FFFF : KVA (virtual_avail is typically < 0xc0a0_0000)
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* 0xF000_0000 - 0xF0FF_FFFF : No-Cache allocation area (16 MB)
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* 0xF100_0000 - 0xF10F_FFFF : SoC Integrated devices registers range (1 MB)
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* 0xF110_0000 - 0xF11F_FFFF : PCI-Express I/O space (1MB)
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* 0xF120_0000 - 0xF12F_FFFF : PCI I/O space (1MB)
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* 0xF130_0000 - 0xF52F_FFFF : PCI-Express memory space (64MB)
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* 0xF530_0000 - 0xF92F_FFFF : PCI memory space (64MB)
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* 0xF930_0000 - 0xF93F_FFFF : Device Bus: BOOT (1 MB)
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* 0xF940_0000 - 0xF94F_FFFF : Device Bus: CS0 (1 MB)
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* 0xF950_0000 - 0xFB4F_FFFF : Device Bus: CS1 (32 MB)
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* 0xFB50_0000 - 0xFB5F_FFFF : Device Bus: CS2 (1 MB)
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* 0xFB60_0000 - 0xFFFE_FFFF : Unused (~74MB)
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* 0xFFFF_0000 - 0xFFFF_0FFF : 'High' vectors page (4 kB)
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* 0xFFFF_1000 - 0xFFFF_1FFF : ARM_TP_ADDRESS/RAS page (4 kB)
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* 0xFFFF_2000 - 0xFFFF_FFFF : Unused (56 kB)
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*/
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struct resource_spec mv_gpio_res[] = {
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{ SYS_RES_MEMORY, 0, RF_ACTIVE },
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{ SYS_RES_IRQ, 0, RF_ACTIVE },
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{ SYS_RES_IRQ, 1, RF_ACTIVE },
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{ SYS_RES_IRQ, 2, RF_ACTIVE },
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{ SYS_RES_IRQ, 3, RF_ACTIVE },
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{ -1, 0 }
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};
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const struct decode_win idma_win_tbl[] = {
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{ 0 },
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};
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const struct decode_win *idma_wins = idma_win_tbl;
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int idma_wins_no = 0;
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const struct decode_win xor_win_tbl[] = {
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{ 0 },
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};
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const struct decode_win *xor_wins = xor_win_tbl;
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int xor_wins_no = 0;
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uint32_t
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get_tclk(void)
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{
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uint32_t sar;
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/*
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* On Discovery TCLK is can be configured to 166 MHz or 200 MHz.
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* Current setting is read from Sample At Reset register.
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*/
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sar = bus_space_read_4(fdtbus_bs_tag, MV_MPP_BASE, SAMPLE_AT_RESET_HI);
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sar = (sar & TCLK_MASK) >> TCLK_SHIFT;
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switch (sar) {
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case 0:
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return (TCLK_166MHZ);
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case 1:
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return (TCLK_200MHZ);
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default:
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panic("Unknown TCLK settings!");
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}
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}
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