From 08f87f769b595151be1afeff53e144f543faa614 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 06 Dec 2023 09:51:13 +0000
Subject: [PATCH] add dts config
---
kernel/arch/powerpc/platforms/pasemi/setup.c | 155 +++++++++++++++++++++++++++++----------------------
1 files changed, 87 insertions(+), 68 deletions(-)
diff --git a/kernel/arch/powerpc/platforms/pasemi/setup.c b/kernel/arch/powerpc/platforms/pasemi/setup.c
index 9a6eb04..b612474 100644
--- a/kernel/arch/powerpc/platforms/pasemi/setup.c
+++ b/kernel/arch/powerpc/platforms/pasemi/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2006-2007 PA Semi, Inc
*
@@ -7,19 +8,6 @@
* Maintained by: Olof Johansson <olof@lixom.net>
*
* Based on arch/powerpc/platforms/maple/setup.c
- *
- * 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/errno.h>
@@ -34,6 +22,7 @@
#include <asm/prom.h>
#include <asm/iommu.h>
#include <asm/machdep.h>
+#include <asm/i8259.h>
#include <asm/mpic.h>
#include <asm/smp.h>
#include <asm/time.h>
@@ -71,6 +60,40 @@
while (1)
out_le32(reset_reg, 0x6000000);
}
+
+#ifdef CONFIG_PPC_PASEMI_NEMO
+void pas_shutdown(void)
+{
+ /* Set the PLD bit that makes the SB600 think the power button is being pressed */
+ void __iomem *pld_map = ioremap(0xf5000000,4096);
+ while (1)
+ out_8(pld_map+7,0x01);
+}
+
+/* RTC platform device structure as is not in device tree */
+static struct resource rtc_resource[] = {{
+ .name = "rtc",
+ .start = 0x70,
+ .end = 0x71,
+ .flags = IORESOURCE_IO,
+}, {
+ .name = "rtc",
+ .start = 8,
+ .end = 8,
+ .flags = IORESOURCE_IRQ,
+}};
+
+static inline void nemo_init_rtc(void)
+{
+ platform_device_register_simple("rtc_cmos", -1, rtc_resource, 2);
+}
+
+#else
+
+static inline void nemo_init_rtc(void)
+{
+}
+#endif
#ifdef CONFIG_SMP
static arch_spinlock_t timebase_lock;
@@ -123,10 +146,6 @@
#endif
/* Lookup PCI hosts */
pas_pci_init();
-
-#ifdef CONFIG_DUMMY_CONSOLE
- conswitchp = &dummy_con;
-#endif
/* Remap SDC register for doing reset */
/* XXXOJN This should maybe come out of the device tree */
@@ -182,6 +201,42 @@
return 0;
}
machine_device_initcall(pasemi, pas_setup_mce_regs);
+
+#ifdef CONFIG_PPC_PASEMI_NEMO
+static void sb600_8259_cascade(struct irq_desc *desc)
+{
+ struct irq_chip *chip = irq_desc_get_chip(desc);
+ unsigned int cascade_irq = i8259_irq();
+
+ if (cascade_irq)
+ generic_handle_irq(cascade_irq);
+
+ chip->irq_eoi(&desc->irq_data);
+}
+
+static void nemo_init_IRQ(struct mpic *mpic)
+{
+ struct device_node *np;
+ int gpio_virq;
+ /* Connect the SB600's legacy i8259 controller */
+ np = of_find_node_by_path("/pxp@0,e0000000");
+ i8259_init(np, 0);
+ of_node_put(np);
+
+ gpio_virq = irq_create_mapping(NULL, 3);
+ irq_set_irq_type(gpio_virq, IRQ_TYPE_LEVEL_HIGH);
+ irq_set_chained_handler(gpio_virq, sb600_8259_cascade);
+ mpic_unmask_irq(irq_get_irq_data(gpio_virq));
+
+ irq_set_default_host(mpic->irqhost);
+}
+
+#else
+
+static inline void nemo_init_IRQ(struct mpic *mpic)
+{
+}
+#endif
static __init void pas_init_IRQ(void)
{
@@ -242,6 +297,8 @@
irq_set_irq_type(nmi_virq, IRQ_TYPE_EDGE_RISING);
mpic_unmask_irq(irq_get_irq_data(nmi_virq));
}
+
+ nemo_init_IRQ(mpic);
of_node_put(mpic_node);
of_node_put(root);
@@ -338,55 +395,6 @@
return !!(srr1 & 0x2);
}
-#ifdef CONFIG_PCMCIA
-static int pcmcia_notify(struct notifier_block *nb, unsigned long action,
- void *data)
-{
- struct device *dev = data;
- struct device *parent;
- struct pcmcia_device *pdev = to_pcmcia_dev(dev);
-
- /* We are only intereted in device addition */
- if (action != BUS_NOTIFY_ADD_DEVICE)
- return 0;
-
- parent = pdev->socket->dev.parent;
-
- /* We know electra_cf devices will always have of_node set, since
- * electra_cf is an of_platform driver.
- */
- if (!parent->of_node)
- return 0;
-
- if (!of_device_is_compatible(parent->of_node, "electra-cf"))
- return 0;
-
- /* We use the direct ops for localbus */
- dev->dma_ops = &dma_nommu_ops;
-
- return 0;
-}
-
-static struct notifier_block pcmcia_notifier = {
- .notifier_call = pcmcia_notify,
-};
-
-static inline void pasemi_pcmcia_init(void)
-{
- extern struct bus_type pcmcia_bus_type;
-
- bus_register_notifier(&pcmcia_bus_type, &pcmcia_notifier);
-}
-
-#else
-
-static inline void pasemi_pcmcia_init(void)
-{
-}
-
-#endif
-
-
static const struct of_device_id pasemi_bus_ids[] = {
/* Unfortunately needed for legacy firmwares */
{ .type = "localbus", },
@@ -399,10 +407,10 @@
static int __init pasemi_publish_devices(void)
{
- pasemi_pcmcia_init();
-
/* Publish OF platform devices for SDC and other non-PCI devices */
of_platform_bus_probe(NULL, pasemi_bus_ids, NULL);
+
+ nemo_init_rtc();
return 0;
}
@@ -418,6 +426,17 @@
!of_machine_is_compatible("pasemi,pwrficient"))
return 0;
+#ifdef CONFIG_PPC_PASEMI_NEMO
+ /*
+ * Check for the Nemo motherboard here, if we are running on one
+ * change the machine definition to fit
+ */
+ if (of_machine_is_compatible("pasemi,nemo")) {
+ pm_power_off = pas_shutdown;
+ ppc_md.name = "A-EON Amigaone X1000";
+ }
+#endif
+
iommu_init_early_pasemi();
return 1;
--
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