6 files changed, 36 insertions, 78 deletions
diff --git a/arch/mips/alchemy/devboards/Makefile b/arch/mips/alchemy/devboards/Makefile
index 3c37fb303364..c9e747dd9fc2 100644
--- a/arch/mips/alchemy/devboards/Makefile
+++ b/arch/mips/alchemy/devboards/Makefile
@@ -2,7 +2,7 @@
 # Alchemy Develboards
 #
 
-obj-y += prom.o bcsr.o platform.o
+obj-y += bcsr.o platform.o
 obj-$(CONFIG_PM)		+= pm.o
 obj-$(CONFIG_MIPS_PB1100)	+= pb1100.o
 obj-$(CONFIG_MIPS_PB1500)	+= pb1500.o
diff --git a/arch/mips/alchemy/devboards/bcsr.c b/arch/mips/alchemy/devboards/bcsr.c
index 1e83ce2e1147..f2039ef2c293 100644
--- a/arch/mips/alchemy/devboards/bcsr.c
+++ b/arch/mips/alchemy/devboards/bcsr.c
@@ -90,10 +90,7 @@ static void bcsr_csc_handler(unsigned int irq, struct irq_desc *d)
 	unsigned short bisr = __raw_readw(bcsr_virt + BCSR_REG_INTSTAT);
 
 	disable_irq_nosync(irq);
-
-	for ( ; bisr; bisr &= bisr - 1)
-		generic_handle_irq(bcsr_csc_base + __ffs(bisr));
-
+	generic_handle_irq(bcsr_csc_base + __ffs(bisr));
 	enable_irq(irq);
 }
 
diff --git a/arch/mips/alchemy/devboards/pb1100.c b/arch/mips/alchemy/devboards/pb1100.c
index cff50d05ddd4..78c77a44a317 100644
--- a/arch/mips/alchemy/devboards/pb1100.c
+++ b/arch/mips/alchemy/devboards/pb1100.c
@@ -46,7 +46,7 @@ void __init board_setup(void)
 	alchemy_gpio1_input_enable();
 	udelay(100);
 
-#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_OHCI_HCD)
 	{
 		u32 pin_func, sys_freqctrl, sys_clksrc;
 
@@ -93,7 +93,7 @@ void __init board_setup(void)
 		pin_func |= SYS_PF_USB;
 		au_writel(pin_func, SYS_PINFUNC);
 	}
-#endif /* defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) */
+#endif /* IS_ENABLED(CONFIG_USB_OHCI_HCD) */
 
 	/* Enable sys bus clock divider when IDLE state or no bus activity. */
 	au_writel(au_readl(SYS_POWERCTRL) | (0x3 << 5), SYS_POWERCTRL);
diff --git a/arch/mips/alchemy/devboards/pb1500.c b/arch/mips/alchemy/devboards/pb1500.c
index e7b807b3ec51..232fee942000 100644
--- a/arch/mips/alchemy/devboards/pb1500.c
+++ b/arch/mips/alchemy/devboards/pb1500.c
@@ -53,7 +53,7 @@ void __init board_setup(void)
 	alchemy_gpio_direction_input(201);
 	alchemy_gpio_direction_input(203);
 
-#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_OHCI_HCD)
 
 	/* Zero and disable FREQ2 */
 	sys_freqctrl = au_readl(SYS_FREQCTRL0);
@@ -87,7 +87,7 @@ void __init board_setup(void)
 	/* 2nd USB port is USB host */
 	pin_func |= SYS_PF_USB;
 	au_writel(pin_func, SYS_PINFUNC);
-#endif /* defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) */
+#endif /* IS_ENABLED(CONFIG_USB_OHCI_HCD) */
 
 #ifdef CONFIG_PCI
 	{
diff --git a/arch/mips/alchemy/devboards/platform.c b/arch/mips/alchemy/devboards/platform.c
index 621f70afb63a..f39042e99d0d 100644
--- a/arch/mips/alchemy/devboards/platform.c
+++ b/arch/mips/alchemy/devboards/platform.c
@@ -10,9 +10,39 @@
 #include <linux/platform_device.h>
 #include <linux/pm.h>
 
+#include <asm/bootinfo.h>
 #include <asm/reboot.h>
+#include <asm/mach-au1x00/au1000.h>
 #include <asm/mach-db1x00/bcsr.h>
 
+#include <prom.h>
+
+void __init prom_init(void)
+{
+	unsigned char *memsize_str;
+	unsigned long memsize;
+
+	prom_argc = (int)fw_arg0;
+	prom_argv = (char **)fw_arg1;
+	prom_envp = (char **)fw_arg2;
+
+	prom_init_cmdline();
+	memsize_str = prom_getenv("memsize");
+	if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
+		memsize = 64 << 20; /* all devboards have at least 64MB RAM */
+
+	add_memory_region(0, memsize, BOOT_MEM_RAM);
+}
+
+void prom_putchar(unsigned char c)
+{
+#ifdef CONFIG_MIPS_DB1300
+	alchemy_uart_putchar(AU1300_UART2_PHYS_ADDR, c);
+#else
+	alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
+#endif
+}
+
 
 static struct platform_device db1x00_rtc_dev = {
 	.name	= "rtc-au1xxx",
diff --git a/arch/mips/alchemy/devboards/prom.c b/arch/mips/alchemy/devboards/prom.c
deleted file mode 100644
index 93a22107cc41..000000000000
--- a/arch/mips/alchemy/devboards/prom.c
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Common code used by all Alchemy develboards.
- *
- * Extracted from files which had this to say:
- *
- * Copyright 2000, 2008 MontaVista Software Inc.
- * Author: MontaVista Software, Inc. <source@mvista.com>
- *
- *  This program is free software; you can redistribute  it and/or modify it
- *  under  the terms of  the GNU General  Public License as published by the
- *  Free Software Foundation;  either version 2 of the  License, or (at your
- *  option) any later version.
- *
- *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
- *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
- *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
- *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
- *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *  You should have received a copy of the  GNU General Public License along
- *  with this program; if not, write  to the Free Software Foundation, Inc.,
- *  675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <asm/bootinfo.h>
-#include <asm/mach-au1x00/au1000.h>
-#include <prom.h>
-
-#if defined(CONFIG_MIPS_DB1000) || \
-    defined(CONFIG_MIPS_PB1100) || \
-    defined(CONFIG_MIPS_PB1500)
-#define ALCHEMY_BOARD_DEFAULT_MEMSIZE	0x04000000
-
-#else	/* Au1550/Au1200-based develboards */
-#define ALCHEMY_BOARD_DEFAULT_MEMSIZE	0x08000000
-#endif
-
-void __init prom_init(void)
-{
-	unsigned char *memsize_str;
-	unsigned long memsize;
-
-	prom_argc = (int)fw_arg0;
-	prom_argv = (char **)fw_arg1;
-	prom_envp = (char **)fw_arg2;
-
-	prom_init_cmdline();
-	memsize_str = prom_getenv("memsize");
-	if (!memsize_str || strict_strtoul(memsize_str, 0, &memsize))
-		memsize = ALCHEMY_BOARD_DEFAULT_MEMSIZE;
-
-	add_memory_region(0, memsize, BOOT_MEM_RAM);
-}
-
-void prom_putchar(unsigned char c)
-{
-#ifdef CONFIG_MIPS_DB1300
-	alchemy_uart_putchar(AU1300_UART2_PHYS_ADDR, c);
-#else
-	alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
-#endif
-}