ARM: lpc32xx: allow multiplatform build

All preparation work is done, so the platform can finally
be moved into ARCH_MULTIPLATFORM. This requires a small
change to the defconfig file to enable the platform.

Link: https://lore.kernel.org/r/20190809144043.476786-14-arnd@arndb.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 33b0057..65808e1 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -478,21 +478,6 @@ config ARCH_W90X900
          <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
                ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
 
-config ARCH_LPC32XX
-       bool "NXP LPC32XX"
-       select ARM_AMBA
-       select CLKDEV_LOOKUP
-       select CLKSRC_LPC32XX
-       select COMMON_CLK
-       select CPU_ARM926T
-       select GENERIC_CLOCKEVENTS
-       select GENERIC_IRQ_MULTI_HANDLER
-       select GPIOLIB
-       select SPARSE_IRQ
-       select USE_OF
-       help
-         Support for the NXP LPC32XX family of processors
-
 config ARCH_PXA
        bool "PXA2xx/PXA3xx-based"
        depends on MMU
@@ -746,6 +731,8 @@ source "arch/arm/mach-keystone/Kconfig"
 
 source "arch/arm/mach-ks8695/Kconfig"
 
+source "arch/arm/mach-lpc32xx/Kconfig"
+
 source "arch/arm/mach-mediatek/Kconfig"
 
 source "arch/arm/mach-meson/Kconfig"

diff --git a/arch/arm/configs/lpc32xx_defconfig b/arch/arm/configs/lpc32xx_defconfig
index 3772d5a..09deb57 100644 (file)
--- a/arch/arm/configs/lpc32xx_defconfig
+++ b/arch/arm/configs/lpc32xx_defconfig
@@ -12,6 +12,7 @@ CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_SYSCTL_SYSCALL=y
 CONFIG_EMBEDDED=y
 CONFIG_SLAB=y
+# CONFIG_ARCH_MULTI_V7 is not set
 CONFIG_ARCH_LPC32XX=y
 CONFIG_AEABI=y
 CONFIG_ZBOOT_ROM_TEXT=0x0

diff --git a/arch/arm/mach-lpc32xx/Kconfig b/arch/arm/mach-lpc32xx/Kconfig
new file mode 100644 (file)
index 0000000..ec87c65
--- /dev/null
+++ b/arch/arm/mach-lpc32xx/Kconfig
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+config ARCH_LPC32XX
+       bool "NXP LPC32XX"
+       depends on ARCH_MULTI_V5
+       select ARM_AMBA
+       select CLKSRC_LPC32XX
+       select CPU_ARM926T
+       select GPIOLIB
+       help
+         Support for the NXP LPC32XX family of processors

diff --git a/arch/arm/mach-lpc32xx/include/mach/uncompress.h b/arch/arm/mach-lpc32xx/include/mach/uncompress.h
deleted file mode 100644 (file)
index 74b7aa0..0000000
--- a/arch/arm/mach-lpc32xx/include/mach/uncompress.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * arch/arm/mach-lpc32xx/include/mach/uncompress.h
- *
- * Author: Kevin Wells <kevin.wells@nxp.com>
- *
- * Copyright (C) 2010 NXP Semiconductors
- */
-
-#ifndef __ASM_ARM_ARCH_UNCOMPRESS_H
-#define __ASM_ARM_ARCH_UNCOMPRESS_H
-
-#include <linux/io.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))
-
-#define LPC32XX_UART_DLLFIFO_O 0x00
-#define LPC32XX_UART_IIRFCR_O  0x08
-#define LPC32XX_UART_LSR_O     0x14
-
-static inline void putc(int ch)
-{
-       /* Wait for transmit FIFO to empty */
-       while ((__raw_readl(_UARTREG(LPC32XX_UART_LSR_O)) &
-               UART_STATUS_TX_MT) == 0)
-               ;
-
-       __raw_writel((u32) ch, _UARTREG(LPC32XX_UART_DLLFIFO_O));
-}
-
-static inline void flush(void)
-{
-       __raw_writel(__raw_readl(_UARTREG(LPC32XX_UART_IIRFCR_O)) |
-               UART_FIFO_CTL_TX_RESET, _UARTREG(LPC32XX_UART_IIRFCR_O));
-}
-
-/* NULL functions; we don't presently need them */
-#define arch_decomp_setup()
-
-#endif