diff options
| author | Denis 'GNUtoo' Carikli <GNUtoo@no-log.org> | 2012-07-09 21:39:12 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2012-07-10 19:23:03 +0200 |
| commit | d2a37b3d91f46da25e7ff34f582e914a4cc0bfee (patch) | |
| tree | b26ef7571c8c56df62f3cf25931063d7e8af6b8c /arch/arm/mach-imx/imx31-dt.c | |
| parent | 5349f2a89e6a31c8d39c4ec2618b9dd6e421c415 (diff) | |
ARM i.MX31: Add devicetree support
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>
Diffstat (limited to 'arch/arm/mach-imx/imx31-dt.c')
| -rw-r--r-- | arch/arm/mach-imx/imx31-dt.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/imx31-dt.c b/arch/arm/mach-imx/imx31-dt.c new file mode 100644 index 00000000000..a68ba207b2b --- /dev/null +++ b/arch/arm/mach-imx/imx31-dt.c @@ -0,0 +1,63 @@ +/* + * Copyright 2012 Sascha Hauer, Pengutronix + * + * 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 + */ + +#include <linux/irq.h> +#include <linux/of_irq.h> +#include <linux/of_platform.h> +#include <asm/mach/arch.h> +#include <asm/mach/time.h> +#include <mach/common.h> +#include <mach/mx31.h> + +static const struct of_dev_auxdata imx31_auxdata_lookup[] __initconst = { + OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART1_BASE_ADDR, + "imx21-uart.0", NULL), + OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART2_BASE_ADDR, + "imx21-uart.1", NULL), + OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART3_BASE_ADDR, + "imx21-uart.2", NULL), + OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART4_BASE_ADDR, + "imx21-uart.3", NULL), + OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART5_BASE_ADDR, + "imx21-uart.4", NULL), + { /* sentinel */ } +}; + +static void __init imx31_dt_init(void) +{ + of_platform_populate(NULL, of_default_bus_match_table, + imx31_auxdata_lookup, NULL); +} + +static void __init imx31_timer_init(void) +{ + mx31_clocks_init_dt(); +} + +static struct sys_timer imx31_timer = { + .init = imx31_timer_init, +}; + +static const char *imx31_dt_board_compat[] __initdata = { + "fsl,imx31", + NULL +}; + +DT_MACHINE_START(IMX31_DT, "Freescale i.MX31 (Device Tree Support)") + .map_io = mx31_map_io, + .init_early = imx31_init_early, + .init_irq = mx31_init_irq, + .handle_irq = imx31_handle_irq, + .timer = &imx31_timer, + .init_machine = imx31_dt_init, + .dt_compat = imx31_dt_board_compat, + .restart = mxc_restart, +MACHINE_END |