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author | ganbold <ganbold@FreeBSD.org> | 2013-01-15 08:26:16 +0000 |
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committer | ganbold <ganbold@FreeBSD.org> | 2013-01-15 08:26:16 +0000 |
commit | a0e69297d0ca951f454276f56550d98d5d625f62 (patch) | |
tree | c315bc0f12b9150d8f6ce554bc081abb3efc96af /sys/arm/allwinner/a10_machdep.c | |
parent | 14a590423659b28b0452511c2b025fd687338ab6 (diff) | |
download | FreeBSD-src-a0e69297d0ca951f454276f56550d98d5d625f62.zip FreeBSD-src-a0e69297d0ca951f454276f56550d98d5d625f62.tar.gz |
Initial support for Allwinner A10 SoC (Cubieboard)
Add simple console driver
Add interrupt handling and timer codes
Add kernel config file
Add dts file
Approved by: gonzo
Diffstat (limited to 'sys/arm/allwinner/a10_machdep.c')
-rw-r--r-- | sys/arm/allwinner/a10_machdep.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/sys/arm/allwinner/a10_machdep.c b/sys/arm/allwinner/a10_machdep.c new file mode 100644 index 0000000..8f0a38d --- /dev/null +++ b/sys/arm/allwinner/a10_machdep.c @@ -0,0 +1,122 @@ +/*- + * Copyright (c) 2012 Ganbold Tsagaankhuu. <ganbold@gmail.com> + * All rights reserved. + * + * This code is derived from software written for Brini by Mark Brinicombe + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * from: FreeBSD: //depot/projects/arm/src/sys/arm/ti/ti_machdep.c + */ + +#include "opt_ddb.h" +#include "opt_platform.h" + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#define _ARM32_BUS_DMA_PRIVATE +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> + +#include <vm/vm.h> +#include <vm/pmap.h> + +#include <machine/bus.h> +#include <machine/frame.h> /* For trapframe_t, used in <machine/machdep.h> */ +#include <machine/machdep.h> +#include <machine/pmap.h> + +#include <dev/fdt/fdt_common.h> + +/* Start of address space used for bootstrap map */ +#define DEVMAP_BOOTSTRAP_MAP_START 0xE0000000 + +void (*a10_cpu_reset)(void); + +vm_offset_t +initarm_lastaddr(void) +{ + + a10_cpu_reset = NULL; + return (DEVMAP_BOOTSTRAP_MAP_START - ARM_NOCACHE_KVA_SIZE); +} + +void +initarm_gpio_init(void) +{ +} + +void +initarm_late_init(void) +{ +} + +#define FDT_DEVMAP_MAX (1 + 2 + 1 + 1) +static struct pmap_devmap fdt_devmap[FDT_DEVMAP_MAX] = { + { 0, 0, 0, 0, 0, } +}; + +/* + * Construct pmap_devmap[] with DT-derived config data. + */ +int +platform_devmap_init(void) +{ + int i = 0; + + fdt_devmap[i].pd_va = 0xE1C00000; + fdt_devmap[i].pd_pa = 0x01C00000; + fdt_devmap[i].pd_size = 0x00400000; /* 4 MB */ + fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE; + fdt_devmap[i].pd_cache = PTE_DEVICE; + + i++; + + pmap_devmap_bootstrap_table = &fdt_devmap[0]; + + return (0); +} + +struct arm32_dma_range * +bus_dma_get_range(void) +{ + return (NULL); +} + +int +bus_dma_get_range_nb(void) +{ + return (0); +} + +void +cpu_reset() +{ + if (a10_cpu_reset) + (*a10_cpu_reset)(); + else + printf("no cpu_reset implementation\n"); + printf("Reset failed!\n"); + while (1); +} |