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Commit 4a66b1d9 authored by Sebastian Andrzej Siewior's avatar Sebastian Andrzej Siewior Committed by Thomas Gleixner
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x86: dt: Fix OLPC=y/INTEL_CE=n build 



Both OLPC and CE4100 activate CONFIG_OF. OLPC uses PROMTREE while CE
uses FLATTREE. Compiling for OLPC only breaks due to missing flat tree
functions and variables.

Use proper wrappers and provide an empty x86_flattree_get_config()
inline so OF=y FLATTREE=n builds and works.

[ tglx: Make it work with HPET_TIMER=n and make a function static ]

Signed-off-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 3bcbaf6e

arch/x86/include/asm/prom.h

+0 −1
Original line number Diff line number Diff line
@@ -30,7 +30,6 @@ extern void add_dtb(u64 data); 
extern void x86_add_irq_domains(void);

void x86_dtb_find_config(void);

void x86_dtb_get_config(unsigned int unused);

void add_interrupt_host(struct irq_domain *ih);

void __cpuinit x86_of_pci_init(void);



static inline struct device_node *pci_device_to_OF_node(struct pci_dev *pdev)

arch/x86/kernel/devicetree.c

+19 −4
Original line number Diff line number Diff line
@@ -26,7 +26,7 @@ static DEFINE_RAW_SPINLOCK(big_irq_lock); 


int __initdata of_ioapic;



void add_interrupt_host(struct irq_domain *ih)

static void add_interrupt_host(struct irq_domain *ih)

{

	unsigned long flags;
@@ -115,7 +115,7 @@ static struct of_device_id __initdata ce4100_ids[] = { 


static int __init add_bus_probe(void)

{

	if (!initial_boot_params)

	if (!of_have_populated_dt())

		return 0;



	return of_platform_bus_probe(NULL, ce4100_ids, NULL);
@@ -203,6 +203,7 @@ void __cpuinit x86_of_pci_init(void) 


static void __init dtb_setup_hpet(void)

{

#ifdef CONFIG_HPET_TIMER

	struct device_node *dn;

	struct resource r;

	int ret;
@@ -216,6 +217,7 @@ static void __init dtb_setup_hpet(void) 
		return;

	}

	hpet_address = r.start;

#endif

}



static void __init dtb_lapic_setup(void)
@@ -288,7 +290,8 @@ void __init x86_dtb_find_config(void) 
		printk(KERN_ERR "Missing device tree!.\n");

}



void __init x86_dtb_get_config(unsigned int unused)

#ifdef CONFIG_OF_FLATTREE

static void __init x86_flattree_get_config(void)

{

	u32 size, map_len;

	void *new_dtb;
@@ -317,6 +320,18 @@ void __init x86_dtb_get_config(unsigned int unused) 
	of_scan_flat_dt(early_init_dt_scan_root, NULL);



	unflatten_device_tree();

}

#else

static inline void x86_flattree_get_config(void) { }

#endif



void __init x86_dtb_get_config(unsigned int unused)

{

	x86_flattree_get_config();



	if (!of_have_populated_dt())

		return;



	dtb_setup_hpet();

	dtb_apic_setup();

}
@@ -413,7 +428,7 @@ void __init x86_add_irq_domains(void) 
{

	struct device_node *dp;



	if (!initial_boot_params)

	if (!of_have_populated_dt())

		return;



	for_each_node_with_property(dp, "interrupt-controller") {