From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Mon, 6 May 2024 03:02:30 +0200
Subject: Adding upstream version 4.19.249.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 arch/arm/mach-footbridge/isa.c | 101 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 arch/arm/mach-footbridge/isa.c

(limited to 'arch/arm/mach-footbridge/isa.c')

diff --git a/arch/arm/mach-footbridge/isa.c b/arch/arm/mach-footbridge/isa.c
new file mode 100644
index 000000000..4d9276c27
--- /dev/null
+++ b/arch/arm/mach-footbridge/isa.c
@@ -0,0 +1,101 @@
+/*
+ *  linux/arch/arm/mach-footbridge/isa.c
+ *
+ *  Copyright (C) 2004 Russell King.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/init.h>
+#include <linux/serial_8250.h>
+
+#include <asm/irq.h>
+#include <asm/hardware/dec21285.h>
+
+#include "common.h"
+
+static struct resource rtc_resources[] = {
+	[0] = {
+		.start	= 0x70,
+		.end	= 0x73,
+		.flags	= IORESOURCE_IO,
+	},
+	[1] = {
+		.start	= IRQ_ISA_RTC_ALARM,
+		.end	= IRQ_ISA_RTC_ALARM,
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+static struct platform_device rtc_device = {
+	.name		= "rtc_cmos",
+	.id		= -1,
+	.resource	= rtc_resources,
+	.num_resources	= ARRAY_SIZE(rtc_resources),
+};
+
+static struct resource serial_resources[] = {
+	[0] = {
+		.start	= 0x3f8,
+		.end	= 0x3ff,
+		.flags	= IORESOURCE_IO,
+	},
+	[1] = {
+		.start	= 0x2f8,
+		.end	= 0x2ff,
+		.flags	= IORESOURCE_IO,
+	},
+};
+
+static struct plat_serial8250_port serial_platform_data[] = {
+	{
+		.iobase		= 0x3f8,
+		.irq		= IRQ_ISA_UART,
+		.uartclk	= 1843200,
+		.regshift	= 0,
+		.iotype		= UPIO_PORT,
+		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+	},
+	{
+		.iobase		= 0x2f8,
+		.irq		= IRQ_ISA_UART2,
+		.uartclk	= 1843200,
+		.regshift	= 0,
+		.iotype		= UPIO_PORT,
+		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+	},
+	{ },
+};
+
+static struct platform_device serial_device = {
+	.name			= "serial8250",
+	.id			= PLAT8250_DEV_PLATFORM,
+	.dev			= {
+		.platform_data	= serial_platform_data,
+	},
+	.resource		= serial_resources,
+	.num_resources		= ARRAY_SIZE(serial_resources),
+};
+
+static int __init footbridge_isa_init(void)
+{
+	int err = 0;
+
+	if (!footbridge_cfn_mode())
+		return 0;
+
+	/* Personal server doesn't have RTC */
+	if (!machine_is_personal_server()) {
+		isa_rtc_init();
+		err = platform_device_register(&rtc_device);
+		if (err)
+			printk(KERN_ERR "Unable to register RTC device: %d\n", err);
+	}
+	err = platform_device_register(&serial_device);
+	if (err)
+		printk(KERN_ERR "Unable to register serial device: %d\n", err);
+	return 0;
+}
+
+arch_initcall(footbridge_isa_init);
-- 
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