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24bb244e02
The problem described in commit 6befda9a27 ("ARM: i.MX53: globally
disable supervisor protect") for the i.MX53 platform applies to i.MX25
as well.
E.g. CSPI1+SDMA and SSI1+SDMA are not working with the default AIPS
configuration. Modifiy the AIPS configuration to allow access to the bus
by SDMA and peripherals.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
/*
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* Copyright 2012 Sascha Hauer, Pengutronix
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*
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* The code contained herein is licensed under the GNU General Public
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* License. You may obtain a copy of the GNU General Public License
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* Version 2 or later at the following locations:
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*
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* http://www.opensource.org/licenses/gpl-license.html
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* http://www.gnu.org/copyleft/gpl.html
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*/
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#include <linux/irq.h>
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#include <linux/of_address.h>
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#include <linux/of_irq.h>
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#include <linux/of_platform.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/time.h>
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#include "common.h"
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#include "hardware.h"
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static void __init imx25_init_early(void)
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{
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mxc_set_cpu_type(MXC_CPU_MX25);
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}
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static void __init imx25_dt_init(void)
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{
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imx_aips_allow_unprivileged_access("fsl,imx25-aips");
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}
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static void __init mx25_init_irq(void)
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{
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struct device_node *np;
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void __iomem *avic_base;
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np = of_find_compatible_node(NULL, NULL, "fsl,avic");
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avic_base = of_iomap(np, 0);
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BUG_ON(!avic_base);
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mxc_init_irq(avic_base);
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}
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static const char * const imx25_dt_board_compat[] __initconst = {
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"fsl,imx25",
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NULL
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};
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DT_MACHINE_START(IMX25_DT, "Freescale i.MX25 (Device Tree Support)")
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.init_early = imx25_init_early,
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.init_machine = imx25_dt_init,
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.init_late = imx25_pm_init,
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.init_irq = mx25_init_irq,
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.dt_compat = imx25_dt_board_compat,
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MACHINE_END
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