v4.19.13 snapshot.
diff --git a/arch/arm/mach-netx/generic.c b/arch/arm/mach-netx/generic.c
new file mode 100644
index 0000000..842302d
--- /dev/null
+++ b/arch/arm/mach-netx/generic.c
@@ -0,0 +1,194 @@
+/*
+ * arch/arm/mach-netx/generic.c
+ *
+ * Copyright (C) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/irqchip/arm-vic.h>
+#include <linux/reboot.h>
+#include <mach/hardware.h>
+#include <asm/mach/map.h>
+#include <mach/netx-regs.h>
+#include <asm/mach/irq.h>
+
+static struct map_desc netx_io_desc[] __initdata = {
+ {
+ .virtual = NETX_IO_VIRT,
+ .pfn = __phys_to_pfn(NETX_IO_PHYS),
+ .length = NETX_IO_SIZE,
+ .type = MT_DEVICE
+ }
+};
+
+void __init netx_map_io(void)
+{
+ iotable_init(netx_io_desc, ARRAY_SIZE(netx_io_desc));
+}
+
+static struct resource netx_rtc_resources[] = {
+ [0] = {
+ .start = 0x00101200,
+ .end = 0x00101220,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device netx_rtc_device = {
+ .name = "netx-rtc",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(netx_rtc_resources),
+ .resource = netx_rtc_resources,
+};
+
+static struct platform_device *devices[] __initdata = {
+ &netx_rtc_device,
+};
+
+#if 0
+#define DEBUG_IRQ(fmt...) printk(fmt)
+#else
+#define DEBUG_IRQ(fmt...) while (0) {}
+#endif
+
+static void netx_hif_demux_handler(struct irq_desc *desc)
+{
+ unsigned int irq = NETX_IRQ_HIF_CHAINED(0);
+ unsigned int stat;
+
+ stat = ((readl(NETX_DPMAS_INT_EN) &
+ readl(NETX_DPMAS_INT_STAT)) >> 24) & 0x1f;
+
+ while (stat) {
+ if (stat & 1) {
+ DEBUG_IRQ("handling irq %d\n", irq);
+ generic_handle_irq(irq);
+ }
+ irq++;
+ stat >>= 1;
+ }
+}
+
+static int
+netx_hif_irq_type(struct irq_data *d, unsigned int type)
+{
+ unsigned int val, irq;
+
+ val = readl(NETX_DPMAS_IF_CONF1);
+
+ irq = d->irq - NETX_IRQ_HIF_CHAINED(0);
+
+ if (type & IRQ_TYPE_EDGE_RISING) {
+ DEBUG_IRQ("rising edges\n");
+ val |= (1 << 26) << irq;
+ }
+ if (type & IRQ_TYPE_EDGE_FALLING) {
+ DEBUG_IRQ("falling edges\n");
+ val &= ~((1 << 26) << irq);
+ }
+ if (type & IRQ_TYPE_LEVEL_LOW) {
+ DEBUG_IRQ("low level\n");
+ val &= ~((1 << 26) << irq);
+ }
+ if (type & IRQ_TYPE_LEVEL_HIGH) {
+ DEBUG_IRQ("high level\n");
+ val |= (1 << 26) << irq;
+ }
+
+ writel(val, NETX_DPMAS_IF_CONF1);
+
+ return 0;
+}
+
+static void
+netx_hif_ack_irq(struct irq_data *d)
+{
+ unsigned int val, irq;
+
+ irq = d->irq - NETX_IRQ_HIF_CHAINED(0);
+ writel((1 << 24) << irq, NETX_DPMAS_INT_STAT);
+
+ val = readl(NETX_DPMAS_INT_EN);
+ val &= ~((1 << 24) << irq);
+ writel(val, NETX_DPMAS_INT_EN);
+
+ DEBUG_IRQ("%s: irq %d\n", __func__, d->irq);
+}
+
+static void
+netx_hif_mask_irq(struct irq_data *d)
+{
+ unsigned int val, irq;
+
+ irq = d->irq - NETX_IRQ_HIF_CHAINED(0);
+ val = readl(NETX_DPMAS_INT_EN);
+ val &= ~((1 << 24) << irq);
+ writel(val, NETX_DPMAS_INT_EN);
+ DEBUG_IRQ("%s: irq %d\n", __func__, d->irq);
+}
+
+static void
+netx_hif_unmask_irq(struct irq_data *d)
+{
+ unsigned int val, irq;
+
+ irq = d->irq - NETX_IRQ_HIF_CHAINED(0);
+ val = readl(NETX_DPMAS_INT_EN);
+ val |= (1 << 24) << irq;
+ writel(val, NETX_DPMAS_INT_EN);
+ DEBUG_IRQ("%s: irq %d\n", __func__, d->irq);
+}
+
+static struct irq_chip netx_hif_chip = {
+ .irq_ack = netx_hif_ack_irq,
+ .irq_mask = netx_hif_mask_irq,
+ .irq_unmask = netx_hif_unmask_irq,
+ .irq_set_type = netx_hif_irq_type,
+};
+
+void __init netx_init_irq(void)
+{
+ int irq;
+
+ vic_init(io_p2v(NETX_PA_VIC), NETX_IRQ_VIC_START, ~0, 0);
+
+ for (irq = NETX_IRQ_HIF_CHAINED(0); irq <= NETX_IRQ_HIF_LAST; irq++) {
+ irq_set_chip_and_handler(irq, &netx_hif_chip,
+ handle_level_irq);
+ irq_clear_status_flags(irq, IRQ_NOREQUEST);
+ }
+
+ writel(NETX_DPMAS_INT_EN_GLB_EN, NETX_DPMAS_INT_EN);
+ irq_set_chained_handler(NETX_IRQ_HIF, netx_hif_demux_handler);
+}
+
+static int __init netx_init(void)
+{
+ return platform_add_devices(devices, ARRAY_SIZE(devices));
+}
+
+subsys_initcall(netx_init);
+
+void netx_restart(enum reboot_mode mode, const char *cmd)
+{
+ writel(NETX_SYSTEM_RES_CR_FIRMW_RES_EN | NETX_SYSTEM_RES_CR_FIRMW_RES,
+ NETX_SYSTEM_RES_CR);
+}