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Commit 3616257f authored by Olof Johansson's avatar Olof Johansson
Browse files

Merge tag 'highbank-for-3.12' of git://sources.calxeda.com/kernel/linux into late/all 

From Rob Herring:
Updates for Highbank for 3.12:
- A couple of fixes to enable LPAE.
- pl08x driver fixes to make it build with ARCH_DMA_ADDR_T_64BIT.
- Avoid L2 related smc calls on Midway.
- Add selecting of necesssary ARM errata.

* tag 'highbank-for-3.12' of git://sources.calxeda.com/kernel/linux

:
  ARM: highbank: clean-up some unused includes
  ARM: highbank: avoid L2 cache smc calls when PL310 is not present
  ARM: move outer_cache declaration out of ifdef
  ARM: highbank: select ARCH_DMA_ADDR_T_64BIT for LPAE
  DMA: fix printk warning in AMBA PL08x DMA driver
  DMA: fix AMBA PL08x compilation issue with 64bit DMA address type
  ARM: highbank: select required errata work-arounds
  ARM: highbank: select ARCH_HAS_HOLES_MEMORYMODEL
  ARM: highbank: enable DMA zone for LPAE
  ARM: use phys_addr_t for DMA zone sizes

Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
parents 6f244c9c e7dc0796

arch/arm/include/asm/mach/arch.h

+1 −1
Original line number Diff line number Diff line
@@ -35,7 +35,7 @@ struct machine_desc { 
	unsigned int		nr_irqs;	/* number of IRQs */



#ifdef CONFIG_ZONE_DMA

	unsigned long		dma_zone_size;	/* size of DMA-able area */

	phys_addr_t		dma_zone_size;	/* size of DMA-able area */

#endif



	unsigned int		video_start;	/* start of video RAM	*/

arch/arm/include/asm/outercache.h

+2 −2
Original line number Diff line number Diff line
@@ -37,10 +37,10 @@ struct outer_cache_fns { 
	void (*resume)(void);

};



#ifdef CONFIG_OUTER_CACHE



extern struct outer_cache_fns outer_cache;



#ifdef CONFIG_OUTER_CACHE



static inline void outer_inv_range(phys_addr_t start, phys_addr_t end)

{

	if (outer_cache.inv_range)

arch/arm/mach-highbank/Kconfig

+6 −0
Original line number Diff line number Diff line 
config ARCH_HIGHBANK

	bool "Calxeda ECX-1000/2000 (Highbank/Midway)" if ARCH_MULTI_V7

	select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE

	select ARCH_HAS_CPUFREQ

	select ARCH_HAS_HOLES_MEMORYMODEL

	select ARCH_HAS_OPP

	select ARCH_WANT_OPTIONAL_GPIOLIB

	select ARM_AMBA

	select ARM_ERRATA_764369

	select ARM_ERRATA_775420

	select ARM_ERRATA_798181

	select ARM_GIC

	select ARM_TIMER_SP804

	select CACHE_L2X0
@@ -18,3 +23,4 @@ config ARCH_HIGHBANK 
	select PL320_MBOX

	select SPARSE_IRQ

	select USE_OF

	select ZONE_DMA if ARM_LPAE

arch/arm/mach-highbank/highbank.c

+9 −11
Original line number Diff line number Diff line
@@ -18,14 +18,11 @@ 
#include <linux/clocksource.h>

#include <linux/dma-mapping.h>

#include <linux/io.h>

#include <linux/irq.h>

#include <linux/irqchip.h>

#include <linux/irqdomain.h>

#include <linux/of.h>

#include <linux/of_irq.h>

#include <linux/of_platform.h>

#include <linux/of_address.h>

#include <linux/smp.h>

#include <linux/amba/bus.h>

#include <linux/clk-provider.h>
@@ -35,7 +32,6 @@ 
#include <asm/hardware/cache-l2x0.h>

#include <asm/mach/arch.h>

#include <asm/mach/map.h>

#include <asm/mach/time.h>



#include "core.h"

#include "sysregs.h"
@@ -65,13 +61,11 @@ void highbank_set_cpu_jump(int cpu, void *jump_addr) 
			  HB_JUMP_TABLE_PHYS(cpu) + 15);

}



#ifdef CONFIG_CACHE_L2X0

static void highbank_l2x0_disable(void)

{

	/* Disable PL310 L2 Cache controller */

	highbank_smc1(0x102, 0x0);

}

#endif



static void __init highbank_init_irq(void)

{
@@ -80,12 +74,13 @@ static void __init highbank_init_irq(void) 
	if (of_find_compatible_node(NULL, NULL, "arm,cortex-a9"))

		highbank_scu_map_io();



#ifdef CONFIG_CACHE_L2X0

	/* Enable PL310 L2 Cache controller */

	if (IS_ENABLED(CONFIG_CACHE_L2X0) &&

	    of_find_compatible_node(NULL, NULL, "arm,pl310-cache")) {

		highbank_smc1(0x102, 0x1);

		l2x0_of_init(0, ~0UL);

		outer_cache.disable = highbank_l2x0_disable;

#endif

	}

}



static void __init highbank_timer_init(void)
@@ -176,6 +171,9 @@ static const char *highbank_match[] __initconst = { 
};



DT_MACHINE_START(HIGHBANK, "Highbank")

#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)

	.dma_zone_size	= (4ULL * SZ_1G),

#endif

	.smp		= smp_ops(highbank_smp_ops),

	.init_irq	= highbank_init_irq,

	.init_time	= highbank_timer_init,

arch/arm/mm/init.c

+1 −1
Original line number Diff line number Diff line
@@ -207,7 +207,7 @@ static void __init arm_bootmem_init(unsigned long start_pfn, 


#ifdef CONFIG_ZONE_DMA



unsigned long arm_dma_zone_size __read_mostly;

phys_addr_t arm_dma_zone_size __read_mostly;

EXPORT_SYMBOL(arm_dma_zone_size);



/*