forked from mirrors/linux
26b754f994
On i.MX51/i.MX53 it is necessary to set the DBGEN bit in ARM_GPC register in order to turn on the debug clocks. The DBGEN bit of ARM_GPC register has the following description in the i.MX53 Reference Manual: "This allows the user to manually activate clocks within the debug system. This register bit directly controls the platform's dbgen_out output signal which connects to the DAP_SYS to enable all debug clocks. Once enabled, the clocks cannot be disabled except by asserting the disable_trace input of the DAP_SYS." Based on a previous patch from Sebastian Reichel. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
/*
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* Copyright 2011 Freescale Semiconductor, Inc. All Rights Reserved.
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* Copyright 2011 Linaro Ltd.
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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/clk.h>
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#include <linux/clkdev.h>
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#include <linux/err.h>
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#include <linux/io.h>
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#include <linux/irq.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 imx53_init_early(void)
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{
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mxc_set_cpu_type(MXC_CPU_MX53);
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}
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static void __init imx53_dt_init(void)
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{
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imx_src_init();
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imx5_pmu_init();
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imx_aips_allow_unprivileged_access("fsl,imx53-aipstz");
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}
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static void __init imx53_init_late(void)
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{
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imx53_pm_init();
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}
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static const char * const imx53_dt_board_compat[] __initconst = {
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"fsl,imx53",
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NULL
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};
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DT_MACHINE_START(IMX53_DT, "Freescale i.MX53 (Device Tree Support)")
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.init_early = imx53_init_early,
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.init_machine = imx53_dt_init,
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.init_late = imx53_init_late,
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.dt_compat = imx53_dt_board_compat,
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MACHINE_END
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