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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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d2a37b3d91
This patch adds basic devicetree support for i.MX31 based SoCs. Only the UART and interrupts bindings are added. Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
64 lines
1.7 KiB
C
64 lines
1.7 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_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 <mach/common.h>
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#include <mach/mx31.h>
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static const struct of_dev_auxdata imx31_auxdata_lookup[] __initconst = {
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OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART1_BASE_ADDR,
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"imx21-uart.0", NULL),
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OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART2_BASE_ADDR,
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"imx21-uart.1", NULL),
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OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART3_BASE_ADDR,
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"imx21-uart.2", NULL),
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OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART4_BASE_ADDR,
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"imx21-uart.3", NULL),
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OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART5_BASE_ADDR,
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"imx21-uart.4", NULL),
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{ /* sentinel */ }
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};
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static void __init imx31_dt_init(void)
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{
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of_platform_populate(NULL, of_default_bus_match_table,
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imx31_auxdata_lookup, NULL);
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}
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static void __init imx31_timer_init(void)
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{
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mx31_clocks_init_dt();
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}
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static struct sys_timer imx31_timer = {
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.init = imx31_timer_init,
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};
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static const char *imx31_dt_board_compat[] __initdata = {
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"fsl,imx31",
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NULL
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};
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DT_MACHINE_START(IMX31_DT, "Freescale i.MX31 (Device Tree Support)")
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.map_io = mx31_map_io,
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.init_early = imx31_init_early,
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.init_irq = mx31_init_irq,
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.handle_irq = imx31_handle_irq,
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.timer = &imx31_timer,
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.init_machine = imx31_dt_init,
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.dt_compat = imx31_dt_board_compat,
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.restart = mxc_restart,
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MACHINE_END
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