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Date: Tue, 6 Aug 2019 16:16:10 -0400
From: Sylvain Lemieux <slemieux.tyco@...il.com>
To: Arnd Bergmann <arnd@...db.de>
Cc: soc@...nel.org,
"moderated list:ARM PORT" <linux-arm-kernel@...ts.infradead.org>,
Vladimir Zapolskiy <vz@...ia.com>,
Russell King <linux@...linux.org.uk>,
Gregory Clement <gregory.clement@...tlin.com>,
Linus Walleij <linus.walleij@...aro.org>,
Jason Cooper <jason@...edaemon.net>,
Andrew Lunn <andrew@...n.ch>,
Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
"David S. Miller" <davem@...emloft.net>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Alan Stern <stern@...land.harvard.edu>,
Guenter Roeck <linux@...ck-us.net>,
"open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
Networking <netdev@...r.kernel.org>,
linux-serial@...r.kernel.org, USB list <linux-usb@...r.kernel.org>,
LINUXWATCHDOG <linux-watchdog@...r.kernel.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 10/14] ARM: lpc32xx: clean up header files
Acked-by: Sylvain Lemieux <slemieux.tyco@...il.com>
On Wed, Jul 31, 2019 at 4:03 PM Arnd Bergmann <arnd@...db.de> wrote:
>
> All device drivers have stopped relying on mach/*.h headers,
> so move the remaining headers into arch/arm/mach-lpc32xx/lpc32xx.h
> to prepare for multiplatform builds.
>
> The mach/entry-macro.S file has been unused for a long time now
> and can simply get removed.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
> arch/arm/mach-lpc32xx/common.c | 3 +-
> .../mach-lpc32xx/include/mach/entry-macro.S | 28 -------------------
> arch/arm/mach-lpc32xx/include/mach/hardware.h | 25 -----------------
> .../mach-lpc32xx/include/mach/uncompress.h | 4 +--
> .../{include/mach/platform.h => lpc32xx.h} | 18 ++++++++++--
> arch/arm/mach-lpc32xx/pm.c | 3 +-
> arch/arm/mach-lpc32xx/serial.c | 3 +-
> arch/arm/mach-lpc32xx/suspend.S | 3 +-
> 8 files changed, 21 insertions(+), 66 deletions(-)
> delete mode 100644 arch/arm/mach-lpc32xx/include/mach/entry-macro.S
> delete mode 100644 arch/arm/mach-lpc32xx/include/mach/hardware.h
> rename arch/arm/mach-lpc32xx/{include/mach/platform.h => lpc32xx.h} (98%)
>
> diff --git a/arch/arm/mach-lpc32xx/common.c b/arch/arm/mach-lpc32xx/common.c
> index a475339333c1..304ea61a0716 100644
> --- a/arch/arm/mach-lpc32xx/common.c
> +++ b/arch/arm/mach-lpc32xx/common.c
> @@ -13,8 +13,7 @@
> #include <asm/mach/map.h>
> #include <asm/system_info.h>
>
> -#include <mach/hardware.h>
> -#include <mach/platform.h>
> +#include "lpc32xx.h"
> #include "common.h"
>
> /*
> diff --git a/arch/arm/mach-lpc32xx/include/mach/entry-macro.S b/arch/arm/mach-lpc32xx/include/mach/entry-macro.S
> deleted file mode 100644
> index eec0f5f7e722..000000000000
> --- a/arch/arm/mach-lpc32xx/include/mach/entry-macro.S
> +++ /dev/null
> @@ -1,28 +0,0 @@
> -/* SPDX-License-Identifier: GPL-2.0-or-later */
> -/*
> - * arch/arm/mach-lpc32xx/include/mach/entry-macro.S
> - *
> - * Author: Kevin Wells <kevin.wells@....com>
> - *
> - * Copyright (C) 2010 NXP Semiconductors
> - */
> -
> -#include <mach/hardware.h>
> -#include <mach/platform.h>
> -
> -#define LPC32XX_INTC_MASKED_STATUS_OFS 0x8
> -
> - .macro get_irqnr_preamble, base, tmp
> - ldr \base, =IO_ADDRESS(LPC32XX_MIC_BASE)
> - .endm
> -
> -/*
> - * Return IRQ number in irqnr. Also return processor Z flag status in CPSR
> - * as set if an interrupt is pending.
> - */
> - .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
> - ldr \irqstat, [\base, #LPC32XX_INTC_MASKED_STATUS_OFS]
> - clz \irqnr, \irqstat
> - rsb \irqnr, \irqnr, #31
> - teq \irqstat, #0
> - .endm
> diff --git a/arch/arm/mach-lpc32xx/include/mach/hardware.h b/arch/arm/mach-lpc32xx/include/mach/hardware.h
> deleted file mode 100644
> index 4866f096ffce..000000000000
> --- a/arch/arm/mach-lpc32xx/include/mach/hardware.h
> +++ /dev/null
> @@ -1,25 +0,0 @@
> -/* SPDX-License-Identifier: GPL-2.0-or-later */
> -/*
> - * arch/arm/mach-lpc32xx/include/mach/hardware.h
> - *
> - * Copyright (c) 2005 MontaVista Software, Inc. <source@...sta.com>
> - */
> -
> -#ifndef __ASM_ARCH_HARDWARE_H
> -#define __ASM_ARCH_HARDWARE_H
> -
> -/*
> - * Start of virtual addresses for IO devices
> - */
> -#define IO_BASE 0xF0000000
> -
> -/*
> - * This macro relies on fact that for all HW i/o addresses bits 20-23 are 0
> - */
> -#define IO_ADDRESS(x) IOMEM(((((x) & 0xff000000) >> 4) | ((x) & 0xfffff)) |\
> - IO_BASE)
> -
> -#define io_p2v(x) ((void __iomem *) (unsigned long) IO_ADDRESS(x))
> -#define io_v2p(x) ((((x) & 0x0ff00000) << 4) | ((x) & 0x000fffff))
> -
> -#endif
> diff --git a/arch/arm/mach-lpc32xx/include/mach/uncompress.h b/arch/arm/mach-lpc32xx/include/mach/uncompress.h
> index a568812a0b91..74b7aa0da0e4 100644
> --- a/arch/arm/mach-lpc32xx/include/mach/uncompress.h
> +++ b/arch/arm/mach-lpc32xx/include/mach/uncompress.h
> @@ -12,15 +12,13 @@
>
> #include <linux/io.h>
>
> -#include <mach/hardware.h>
> -#include <mach/platform.h>
> -
> /*
> * Uncompress output is hardcoded to standard UART 5
> */
>
> #define UART_FIFO_CTL_TX_RESET (1 << 2)
> #define UART_STATUS_TX_MT (1 << 6)
> +#define LPC32XX_UART5_BASE 0x40090000
>
> #define _UARTREG(x) (void __iomem *)(LPC32XX_UART5_BASE + (x))
>
> diff --git a/arch/arm/mach-lpc32xx/include/mach/platform.h b/arch/arm/mach-lpc32xx/lpc32xx.h
> similarity index 98%
> rename from arch/arm/mach-lpc32xx/include/mach/platform.h
> rename to arch/arm/mach-lpc32xx/lpc32xx.h
> index 1c53790444fc..5eeb884a1993 100644
> --- a/arch/arm/mach-lpc32xx/include/mach/platform.h
> +++ b/arch/arm/mach-lpc32xx/lpc32xx.h
> @@ -7,8 +7,8 @@
> * Copyright (C) 2010 NXP Semiconductors
> */
>
> -#ifndef __ASM_ARCH_PLATFORM_H
> -#define __ASM_ARCH_PLATFORM_H
> +#ifndef __ARM_LPC32XX_H
> +#define __ARM_LPC32XX_H
>
> #define _SBF(f, v) ((v) << (f))
> #define _BIT(n) _SBF(n, 1)
> @@ -700,4 +700,18 @@
> #define LPC32XX_USB_OTG_DEV_CLOCK_ON _BIT(1)
> #define LPC32XX_USB_OTG_HOST_CLOCK_ON _BIT(0)
>
> +/*
> + * Start of virtual addresses for IO devices
> + */
> +#define IO_BASE 0xF0000000
> +
> +/*
> + * This macro relies on fact that for all HW i/o addresses bits 20-23 are 0
> + */
> +#define IO_ADDRESS(x) IOMEM(((((x) & 0xff000000) >> 4) | ((x) & 0xfffff)) |\
> + IO_BASE)
> +
> +#define io_p2v(x) ((void __iomem *) (unsigned long) IO_ADDRESS(x))
> +#define io_v2p(x) ((((x) & 0x0ff00000) << 4) | ((x) & 0x000fffff))
> +
> #endif
> diff --git a/arch/arm/mach-lpc32xx/pm.c b/arch/arm/mach-lpc32xx/pm.c
> index 32bca351a73b..b27fa1b9f56c 100644
> --- a/arch/arm/mach-lpc32xx/pm.c
> +++ b/arch/arm/mach-lpc32xx/pm.c
> @@ -70,8 +70,7 @@
>
> #include <asm/cacheflush.h>
>
> -#include <mach/hardware.h>
> -#include <mach/platform.h>
> +#include "lpc32xx.h"
> #include "common.h"
>
> #define TEMP_IRAM_AREA IO_ADDRESS(LPC32XX_IRAM_BASE)
> diff --git a/arch/arm/mach-lpc32xx/serial.c b/arch/arm/mach-lpc32xx/serial.c
> index cfb35e5691cd..3e765c4bf986 100644
> --- a/arch/arm/mach-lpc32xx/serial.c
> +++ b/arch/arm/mach-lpc32xx/serial.c
> @@ -16,8 +16,7 @@
> #include <linux/clk.h>
> #include <linux/io.h>
>
> -#include <mach/hardware.h>
> -#include <mach/platform.h>
> +#include "lpc32xx.h"
> #include "common.h"
>
> #define LPC32XX_SUART_FIFO_SIZE 64
> diff --git a/arch/arm/mach-lpc32xx/suspend.S b/arch/arm/mach-lpc32xx/suspend.S
> index 374f9f07fe48..3f0a8282ef6f 100644
> --- a/arch/arm/mach-lpc32xx/suspend.S
> +++ b/arch/arm/mach-lpc32xx/suspend.S
> @@ -11,8 +11,7 @@
> */
> #include <linux/linkage.h>
> #include <asm/assembler.h>
> -#include <mach/platform.h>
> -#include <mach/hardware.h>
> +#include "lpc32xx.h"
>
> /* Using named register defines makes the code easier to follow */
> #define WORK1_REG r0
> --
> 2.20.0
>
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