From: Darren Stevens <darren@stevens-zone.net>
To: linuxppc-dev@lists.ozlabs.org
Cc: Christian Zigotzky <chzigotzky@xenosoft.de>
Subject: [PATCH NEXT 3/4] powerpc/pasemi: Add Nemo board device init code.
Date: Sun, 31 Dec 2017 22:08:46 +0000 (GMT) [thread overview]
Message-ID: <4b3d20c0900.2ef0ae17@auth.smtp.1and1.co.uk> (raw)
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Add routines for Nemo specific devices to init at boot time, these
being board level power-off and SB600's rtc.
Also add a run time variable to prevent these being activated
if we boot on a reference board.
Signed-off-by: Darren Stevens <Darren@stevens-zone.net>
---
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diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c
index c583c17..8d3664f 100644
--- a/arch/powerpc/platforms/pasemi/setup.c
+++ b/arch/powerpc/platforms/pasemi/setup.c
@@ -73,6 +73,19 @@ static void __noreturn pas_restart(char *cmd)
out_le32(reset_reg, 0x6000000);
}
+#ifdef CONFIG_PPC_PASEMI_NEMO
+/* A flag to indicate we are running on Nemo */
+static bool nemo_board = false;
+
+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);
+}
+#endif
+
#ifdef CONFIG_SMP
static arch_spinlock_t timebase_lock;
static unsigned long timebase;
@@ -492,6 +505,20 @@ static inline void pasemi_pcmcia_init(void)
{},
};
+#ifdef CONFIG_PPC_PASEMI_NEMO
+static struct resource rtc_resource[] = {{
+ .name = "rtc",
+ .start = 0x70,
+ .end = 0x71,
+ .flags = IORESOURCE_IO,
+}, {
+ .name = "rtc",
+ .start = 8,
+ .end = 8,
+ .flags = IORESOURCE_IRQ,
+}};
+#endif
+
static int __init pasemi_publish_devices(void)
{
pasemi_pcmcia_init();
@@ -499,6 +526,14 @@ static int __init pasemi_publish_devices(void)
/* Publish OF platform devices for SDC and other non-PCI devices */
of_platform_bus_probe(NULL, pasemi_bus_ids, NULL);
+#ifdef CONFIG_PPC_PASEMI_NEMO
+ /*
+ * Activate the SB600's rtc
+ */
+ if (nemo_board)
+ platform_device_register_simple("rtc_cmos", -1, rtc_resource, 2);
+#endif
+
return 0;
}
machine_device_initcall(pasemi, pasemi_publish_devices);
next reply other threads:[~2017-12-31 22:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-31 22:08 Darren Stevens [this message]
2018-05-03 13:06 ` [PATCH NEXT 3/4] powerpc/pasemi: Add Nemo board device init code Michael Ellerman
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