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linux-sg2042/arch/arm/mach-imx/mach-imx25.c

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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 Based on 1 normalized pattern(s): the code contained herein is licensed under the gnu general public license you may obtain a copy of the gnu general public license version 2 or later at the following locations http www opensource org licenses gpl license html http www gnu org copyleft gpl html extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 161 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.383790741@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-27 14:55:08 +08:00
// SPDX-License-Identifier: GPL-2.0-or-later
ARM i.MX25: Add devicetree support This adds a i.MX25 dt machine descriptor and changes the clock support to optionally initialize from dt. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org>
2012-09-20 20:59:36 +08:00
/*
* Copyright 2012 Sascha Hauer, Pengutronix
*/
#include <linux/irq.h>
ARM: mx25: Remove static memory mapping We use dynamic memory mapping when using dt, so remove all the static mappings. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2015-03-13 21:31:55 +08:00
#include <linux/of_address.h>
ARM i.MX25: Add devicetree support This adds a i.MX25 dt machine descriptor and changes the clock support to optionally initialize from dt. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org>
2012-09-20 20:59:36 +08:00
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include "common.h"
ARM: mx25: Remove static memory mapping We use dynamic memory mapping when using dt, so remove all the static mappings. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2015-03-13 21:31:55 +08:00
#include "hardware.h"
static void __init imx25_init_early(void)
{
mxc_set_cpu_type(MXC_CPU_MX25);
}
ARM: i.MX25: globally disable supervisor protect The problem described in commit 6befda9a272b ("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>
2017-04-04 03:47:05 +08:00
static void __init imx25_dt_init(void)
{
imx_aips_allow_unprivileged_access("fsl,imx25-aips");
}
ARM: mx25: Remove static memory mapping We use dynamic memory mapping when using dt, so remove all the static mappings. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2015-03-13 21:31:55 +08:00
static void __init mx25_init_irq(void)
{
struct device_node *np;
void __iomem *avic_base;
np = of_find_compatible_node(NULL, NULL, "fsl,avic");
avic_base = of_iomap(np, 0);
BUG_ON(!avic_base);
mxc_init_irq(avic_base);
}
ARM i.MX25: Add devicetree support This adds a i.MX25 dt machine descriptor and changes the clock support to optionally initialize from dt. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org>
2012-09-20 20:59:36 +08:00
static const char * const imx25_dt_board_compat[] __initconst = {
"fsl,imx25",
NULL
};
DT_MACHINE_START(IMX25_DT, "Freescale i.MX25 (Device Tree Support)")
.init_early = imx25_init_early,
ARM: i.MX25: globally disable supervisor protect The problem described in commit 6befda9a272b ("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>
2017-04-04 03:47:05 +08:00
.init_machine = imx25_dt_init,
ARM: mx25: Add basic suspend/resume support Tested basic suspend/resume on a mx25pdk: $ echo enabled > /sys/class/tty/ttymxc0/power/wakeup $ echo mem > /sys/power/state Then press any key in the serial console and the system wakes up. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-03 05:45:38 +08:00
.init_late = imx25_pm_init,
ARM i.MX25: Add devicetree support This adds a i.MX25 dt machine descriptor and changes the clock support to optionally initialize from dt. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org>
2012-09-20 20:59:36 +08:00
.init_irq = mx25_init_irq,
.dt_compat = imx25_dt_board_compat,
MACHINE_END