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-rw-r--r--arch/xtensa/platforms/xtfpga/setup.c20
1 files changed, 18 insertions, 2 deletions
diff --git a/arch/xtensa/platforms/xtfpga/setup.c b/arch/xtensa/platforms/xtfpga/setup.c
index c79c1d09ea86..1690232c003e 100644
--- a/arch/xtensa/platforms/xtfpga/setup.c
+++ b/arch/xtensa/platforms/xtfpga/setup.c
@@ -49,7 +49,8 @@ void platform_power_off(void)
cpu_relax();
}
-void platform_restart(void)
+static int xtfpga_restart(struct notifier_block *this,
+ unsigned long event, void *ptr)
{
/* Try software reset first. */
WRITE_ONCE(*(u32 *)XTFPGA_SWRST_VADDR, 0xdead);
@@ -58,9 +59,14 @@ void platform_restart(void)
* simulate a processor reset, and jump to the reset vector.
*/
cpu_reset();
- /* control never gets here */
+
+ return NOTIFY_DONE;
}
+static struct notifier_block xtfpga_restart_block = {
+ .notifier_call = xtfpga_restart,
+};
+
#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT
void __init platform_calibrate_ccount(void)
@@ -70,6 +76,11 @@ void __init platform_calibrate_ccount(void)
#endif
+static void __init xtfpga_register_handlers(void)
+{
+ register_restart_handler(&xtfpga_restart_block);
+}
+
#ifdef CONFIG_USE_OF
static void __init xtfpga_clk_setup(struct device_node *np)
@@ -134,6 +145,9 @@ static int __init machine_setup(void)
if ((eth = of_find_compatible_node(eth, NULL, "opencores,ethoc")))
update_local_mac(eth);
of_node_put(eth);
+
+ xtfpga_register_handlers();
+
return 0;
}
arch_initcall(machine_setup);
@@ -281,6 +295,8 @@ static int __init xtavnet_init(void)
pr_info("XTFPGA: Ethernet MAC %pM\n", ethoc_pdata.hwaddr);
ethoc_pdata.eth_clkfreq = *(long *)XTFPGA_CLKFRQ_VADDR;
+ xtfpga_register_handlers();
+
return 0;
}