From: Shawn Guo <shawnguo@kernel.org>
To: Alexander Shiyan <shc_work@mail.ru>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <fabio.estevam@nxp.com>,
Russell King <linux@armlinux.org.uk>,
linux-arm-kernel@lists.infradead.org,
NXP Linux Team <linux-imx@nxp.com>
Subject: Re: [PATCH 2/6] ARM i.MX21: Add devicetree support
Date: Sat, 12 Jan 2019 10:53:03 +0800 [thread overview]
Message-ID: <20190112025302.GQ32649@dragon> (raw)
In-Reply-To: <20181222105200.18502-2-shc_work@mail.ru>
On Sat, Dec 22, 2018 at 01:51:56PM +0300, Alexander Shiyan wrote:
> This patch adds basic devicetree support for i.MX21 based SoCs.
>
> Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
What i.MX21 board are you running devicetree support on?
Shawn
> ---
> arch/arm/mach-imx/Kconfig | 7 +++++++
> arch/arm/mach-imx/Makefile | 1 +
> arch/arm/mach-imx/mach-imx21.c | 31 +++++++++++++++++++++++++++++++
> 3 files changed, 39 insertions(+)
> create mode 100644 arch/arm/mach-imx/mach-imx21.c
>
> diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
> index abc3371..abf3c0d 100644
> --- a/arch/arm/mach-imx/Kconfig
> +++ b/arch/arm/mach-imx/Kconfig
> @@ -91,6 +91,13 @@ config MACH_MX21ADS
> Include support for MX21ADS platform. This includes specific
> configurations for the board and its peripherals.
>
> +config MACH_IMX21_DT
> + bool "Support i.MX21 platforms from device tree"
> + select SOC_IMX21
> + help
> + Include support for Freescale i.MX21 based platforms
> + using the device tree for discovery
> +
> comment "MX27 platforms:"
>
> config MACH_MX27ADS
> diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
> index bae179a..52a9138 100644
> --- a/arch/arm/mach-imx/Makefile
> +++ b/arch/arm/mach-imx/Makefile
> @@ -38,6 +38,7 @@ endif
>
> # i.MX21 based machines
> obj-$(CONFIG_MACH_MX21ADS) += mach-mx21ads.o
> +obj-$(CONFIG_MACH_IMX21_DT) += mach-imx21.o
>
> # i.MX27 based machines
> obj-$(CONFIG_MACH_MX27ADS) += mach-mx27ads.o
> diff --git a/arch/arm/mach-imx/mach-imx21.c b/arch/arm/mach-imx/mach-imx21.c
> new file mode 100644
> index 0000000..7eb7de0
> --- /dev/null
> +++ b/arch/arm/mach-imx/mach-imx21.c
> @@ -0,0 +1,31 @@
> +/* SPDX-License-Identifier: GPL-2.0+ */
> +/* Author: Alexander Shiyan <shc_work@mail.ru> */
> +
> +#include <asm/mach/arch.h>
> +#include <asm/mach/map.h>
> +#include <linux/of_platform.h>
> +
> +#include "common.h"
> +#include "hardware.h"
> +
> +#define MX21_AVIC_ADDR 0x10040000
> +
> +static void __init imx21_init_irq(void)
> +{
> + void __iomem *avic = ioremap(MX21_AVIC_ADDR, SZ_4K);
> +
> + WARN_ON(!avic);
> +
> + mxc_init_irq(avic);
> +}
> +
> +static const char * const imx21_dt_board_compat[] __initconst = {
> + "fsl,imx21",
> + NULL
> +};
> +
> +DT_MACHINE_START(IMX21_DT, "Freescale i.MX21 (Device Tree Support)")
> + .init_early = imx21_init_early,
> + .init_irq = imx21_init_irq,
> + .dt_compat = imx21_dt_board_compat,
> +MACHINE_END
> --
> 2.10.2
>
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next prev parent reply other threads:[~2019-01-12 2:53 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-22 10:51 [PATCH 1/6] ARM: dts: imx21: add i.MX21 SoC device tree Alexander Shiyan
2018-12-22 10:51 ` [PATCH 2/6] ARM i.MX21: Add devicetree support Alexander Shiyan
2019-01-12 2:53 ` Shawn Guo [this message]
2019-01-12 5:17 ` Alexander Shiyan
2019-01-12 7:04 ` Shawn Guo
2018-12-22 10:51 ` [PATCH 3/6] ARM: dts: imx21: Add support for the i.MX21 Freescale ADS board Alexander Shiyan
2018-12-22 10:51 ` [PATCH 4/6] ARM: i.MX: Remove i.MX21 Freescale ADS board support Alexander Shiyan
2018-12-22 10:51 ` [PATCH 5/6] ARM: i.MX: Move SOC_IMX21 into 'Device tree only' Alexander Shiyan
2018-12-22 10:52 ` [PATCH 6/6] ARM: i.MX: Remove i.MX21 non-DT device registration helpers Alexander Shiyan
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