Commit 4762713a authored by Michael Ellerman's avatar Michael Ellerman Committed by Stephen Rothwell
Browse files

ppc64 iSeries: Call early_setup() on iSeries 



Misc steps to incorporate the flat device tree on iSeries.

- define iseries_probe()
- call build_iSeries_Memory_Map() earlier
- return __pa() of the flat device tree from iSeries_early_setup()
- actually call early_setup() for iSeries
- add iseries_md to machdep_calls
- build prom.o for iSeries
- enable /proc/device-tree for iSeries

Signed-off-by: default avatarMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: default avatarStephen Rothwell <sfr@canb.auug.org.au>
parent c0a59491

arch/ppc64/Kconfig

+0 −1
Original line number Diff line number Diff line
@@ -357,7 +357,6 @@ config HOTPLUG_CPU 


config PROC_DEVICETREE

	bool "Support for Open Firmware device tree in /proc"

	depends on !PPC_ISERIES

	help

	  This option adds a device-tree directory under /proc which contains

	  an image of the device tree that the kernel copies from Open

arch/ppc64/kernel/Makefile

+2 −2
Original line number Diff line number Diff line
@@ -11,7 +11,7 @@ obj-y := setup.o entry.o traps.o irq.o idle.o dma.o \ 
			udbg.o binfmt_elf32.o sys_ppc32.o ioctl32.o \

			ptrace32.o signal32.o rtc.o init_task.o \

			lmb.o cputable.o cpu_setup_power4.o idle_power4.o \

			iommu.o sysfs.o vdso.o pmc.o firmware.o

			iommu.o sysfs.o vdso.o pmc.o firmware.o prom.o

obj-y += vdso32/ vdso64/



obj-$(CONFIG_PPC_OF) +=	of_device.o
@@ -27,7 +27,7 @@ obj-$(CONFIG_PPC_ISERIES) += HvCall.o HvLpConfig.o LparData.o \ 
			     mf.o HvLpEvent.o iSeries_proc.o iSeries_htab.o \

			     iSeries_iommu.o



obj-$(CONFIG_PPC_MULTIPLATFORM) += nvram.o i8259.o prom_init.o prom.o

obj-$(CONFIG_PPC_MULTIPLATFORM) += nvram.o i8259.o prom_init.o



obj-$(CONFIG_PPC_PSERIES) += pSeries_pci.o pSeries_lpar.o pSeries_hvCall.o \

			     pSeries_nvram.o rtasd.o ras.o pSeries_reconfig.o \

arch/ppc64/kernel/head.S

+1 −0
Original line number Diff line number Diff line
@@ -1364,6 +1364,7 @@ _STATIC(__start_initialization_iSeries) 
	addi	r2,r2,0x4000



	bl	.iSeries_early_setup

	bl	.early_setup



	/* relocation is on at this point */

arch/ppc64/kernel/iSeries_setup.c

+15 −7
Original line number Diff line number Diff line
@@ -359,12 +359,6 @@ static void __init iSeries_init_early(void) 
	 */

	iommu_init_early_iSeries();



	/*

	 * Initialize the table which translate Linux physical addresses to

	 * AS/400 absolute addresses

	 */

	build_iSeries_Memory_Map();



	iSeries_get_cmdline();



	/* Save unparsed command line copy for /proc/cmdline */
@@ -894,6 +888,11 @@ static int iseries_dedicated_idle(void) 
void __init iSeries_init_IRQ(void) { }

#endif



static int __init iseries_probe(int platform)

{

	return PLATFORM_ISERIES_LPAR == platform;

}



struct machdep_calls __initdata iseries_md = {

	.setup_arch	= iSeries_setup_arch,

	.get_cpuinfo	= iSeries_get_cpuinfo,
@@ -909,6 +908,7 @@ struct machdep_calls __initdata iseries_md = { 
	.get_rtc_time	= iSeries_get_rtc_time,

	.calibrate_decr	= iSeries_calibrate_decr,

	.progress	= iSeries_progress,

	.probe		= iseries_probe,

	/* XXX Implement enable_pmcs for iSeries */

};
@@ -1047,9 +1047,17 @@ void build_flat_dt(struct iseries_flat_dt *dt) 
	dt_push_u32(dt, OF_DT_END);

}



void __init iSeries_early_setup(void)

void * __init iSeries_early_setup(void)

{

	iSeries_fixup_klimit();



	/*

	 * Initialize the table which translate Linux physical addresses to

	 * AS/400 absolute addresses

	 */

	build_iSeries_Memory_Map();



	build_flat_dt(&iseries_dt);



	return (void *) __pa(&iseries_dt);

}

arch/ppc64/kernel/setup.c

+4 −5
Original line number Diff line number Diff line
@@ -309,13 +309,11 @@ static void __init setup_cpu_maps(void) 
}

#endif /* CONFIG_SMP */





#ifdef CONFIG_PPC_MULTIPLATFORM



extern struct machdep_calls pSeries_md;

extern struct machdep_calls pmac_md;

extern struct machdep_calls maple_md;

extern struct machdep_calls bpa_md;

extern struct machdep_calls iseries_md;



/* Ultimately, stuff them in an elf section like initcalls... */

static struct machdep_calls __initdata *machines[] = {
@@ -330,6 +328,9 @@ static struct machdep_calls __initdata *machines[] = { 
#endif /* CONFIG_PPC_MAPLE */

#ifdef CONFIG_PPC_BPA

	&bpa_md,

#endif

#ifdef CONFIG_PPC_ISERIES

	&iseries_md,

#endif

	NULL

};
@@ -534,8 +535,6 @@ static void __init check_for_initrd(void) 
#endif /* CONFIG_BLK_DEV_INITRD */

}



#endif /* CONFIG_PPC_MULTIPLATFORM */



/*

 * Do some initial setup of the system.  The parameters are those which 

 * were passed in from the bootloader.

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