98b0124f0e
Original comment: Restrict DMA-able region to workaround silicon limitation. The limitation restricts buffers available for DMA to SD/MMC hardware to be below 256MB. Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
42 lines
1,012 B
C
42 lines
1,012 B
C
/*
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* Defines machines for CSR SiRFprimaII
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*
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* Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
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*
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* Licensed under GPLv2 or later.
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <linux/of.h>
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#include <linux/of_platform.h>
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#include "common.h"
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static struct of_device_id sirfsoc_of_bus_ids[] __initdata = {
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{ .compatible = "simple-bus", },
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{},
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};
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void __init sirfsoc_mach_init(void)
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{
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of_platform_bus_probe(NULL, sirfsoc_of_bus_ids, NULL);
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}
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static const char *prima2cb_dt_match[] __initdata = {
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"sirf,prima2-cb",
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NULL
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};
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MACHINE_START(PRIMA2_EVB, "prima2cb")
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/* Maintainer: Barry Song <baohua.song@csr.com> */
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.atag_offset = 0x100,
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.init_early = sirfsoc_of_clk_init,
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.map_io = sirfsoc_map_lluart,
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.init_irq = sirfsoc_of_irq_init,
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.timer = &sirfsoc_timer,
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.dma_zone_size = SZ_256M,
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.init_machine = sirfsoc_mach_init,
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.dt_compat = prima2cb_dt_match,
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MACHINE_END
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