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Commit fce4a1dd authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus 

* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: (48 commits)
  MIPS: Move arch_get_unmapped_area and gang to new file.
  MIPS: Cleanup arch_get_unmapped_area
  MIPS: Octeon: Don't request interrupts for unused IPI mailbox bits.
  Octeon: Fix interrupt irq settings for performance counters.
  MIPS: Fix build warnings on defconfigs
  MIPS: Lemote 2F, Malta: Fix build warning
  MIPS: Set ELF AT_PLATFORM string for Loongson2 processors
  MIPS: Set ELF AT_PLATFORM string for BMIPS processors
  MIPS: Introduce set_elf_platform() helper function
  MIPS: JZ4740: setup: Autodetect physical memory.
  MIPS: BCM47xx: Fix MAC address parsing.
  MIPS: BCM47xx: Extend the filling of SPROM from NVRAM
  MIPS: BCM47xx: Register SSB fallback sprom callback
  MIPS: BCM47xx: Extend bcm47xx_fill_sprom with prefix.
  SSB: Change fallback sprom to callback mechanism.
  MIPS: Alchemy: Clean up GPIO registers and accessors
  MIPS: Alchemy: Cleanup DMA addresses
  MIPS: Alchemy: Rewrite ethernet platform setup
  MIPS: Alchemy: Rewrite UART setup and constants.
  MIPS: Alchemy: Convert dbdma.c to syscore_ops
  ...
parents e1f2084e 6f6c3c33

arch/mips/Kbuild.platforms

+1 −0
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ platforms += dec 
platforms += emma

platforms += jazz

platforms += jz4740

platforms += lantiq

platforms += lasat

platforms += loongson

platforms += mipssim

arch/mips/Kconfig

+61 −0
Original line number Diff line number Diff line
@@ -212,6 +212,24 @@ config MACH_JZ4740 
	select HAVE_PWM

	select HAVE_CLK



config LANTIQ

	bool "Lantiq based platforms"

	select DMA_NONCOHERENT

	select IRQ_CPU

	select CEVT_R4K

	select CSRC_R4K

	select SYS_HAS_CPU_MIPS32_R1

	select SYS_HAS_CPU_MIPS32_R2

	select SYS_SUPPORTS_BIG_ENDIAN

	select SYS_SUPPORTS_32BIT_KERNEL

	select SYS_SUPPORTS_MULTITHREADING

	select SYS_HAS_EARLY_PRINTK

	select ARCH_REQUIRE_GPIOLIB

	select SWAP_IO_SPACE

	select BOOT_RAW

	select HAVE_CLK

	select MIPS_MACHINE



config LASAT

	bool "LASAT Networks platforms"

	select CEVT_R4K
@@ -736,6 +754,33 @@ config CAVIUM_OCTEON_REFERENCE_BOARD 
		Hikari

	  Say Y here for most Octeon reference boards.



config NLM_XLR_BOARD

	bool "Netlogic XLR/XLS based systems"

	depends on EXPERIMENTAL

	select BOOT_ELF32

	select NLM_COMMON

	select NLM_XLR

	select SYS_HAS_CPU_XLR

	select SYS_SUPPORTS_SMP

	select HW_HAS_PCI

	select SWAP_IO_SPACE

	select SYS_SUPPORTS_32BIT_KERNEL

	select SYS_SUPPORTS_64BIT_KERNEL

	select 64BIT_PHYS_ADDR

	select SYS_SUPPORTS_BIG_ENDIAN

	select SYS_SUPPORTS_HIGHMEM

	select DMA_COHERENT

	select NR_CPUS_DEFAULT_32

	select CEVT_R4K

	select CSRC_R4K

	select IRQ_CPU

	select ZONE_DMA if 64BIT

	select SYNC_R4K

	select SYS_HAS_EARLY_PRINTK

	help

	  Support for systems based on Netlogic XLR and XLS processors.

	  Say Y here if you have a XLR or XLS based board.



endchoice



source "arch/mips/alchemy/Kconfig"
@@ -743,6 +788,7 @@ source "arch/mips/ath79/Kconfig" 
source "arch/mips/bcm63xx/Kconfig"

source "arch/mips/jazz/Kconfig"

source "arch/mips/jz4740/Kconfig"

source "arch/mips/lantiq/Kconfig"

source "arch/mips/lasat/Kconfig"

source "arch/mips/pmc-sierra/Kconfig"

source "arch/mips/powertv/Kconfig"
@@ -752,6 +798,7 @@ source "arch/mips/txx9/Kconfig" 
source "arch/mips/vr41xx/Kconfig"

source "arch/mips/cavium-octeon/Kconfig"

source "arch/mips/loongson/Kconfig"

source "arch/mips/netlogic/Kconfig"



endmenu
@@ -1420,6 +1467,17 @@ config CPU_BMIPS5000 
	help

	  Broadcom BMIPS5000 processors.



config CPU_XLR

	bool "Netlogic XLR SoC"

	depends on SYS_HAS_CPU_XLR

	select CPU_SUPPORTS_32BIT_KERNEL

	select CPU_SUPPORTS_64BIT_KERNEL

	select CPU_SUPPORTS_HIGHMEM

	select WEAK_ORDERING

	select WEAK_REORDERING_BEYOND_LLSC

	select CPU_SUPPORTS_HUGEPAGES

	help

	  Netlogic Microsystems XLR/XLS processors.

endchoice



if CPU_LOONGSON2F
@@ -1550,6 +1608,9 @@ config SYS_HAS_CPU_BMIPS4380 
config SYS_HAS_CPU_BMIPS5000

	bool



config SYS_HAS_CPU_XLR

	bool



#

# CPU may reorder R->R, R->W, W->R, W->W

# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC

arch/mips/Makefile

+12 −0
Original line number Diff line number Diff line
@@ -191,6 +191,18 @@ endif 
#

include $(srctree)/arch/mips/Kbuild.platforms



#

# NETLOGIC SOC Common (common)

#

cflags-$(CONFIG_NLM_COMMON)		+= -I$(srctree)/arch/mips/include/asm/mach-netlogic

cflags-$(CONFIG_NLM_COMMON)		+= -I$(srctree)/arch/mips/include/asm/netlogic



#

# NETLOGIC XLR/XLS SoC, Simulator and boards

#

core-$(CONFIG_NLM_XLR)      		+= arch/mips/netlogic/xlr/

load-$(CONFIG_NLM_XLR_BOARD)		+= 0xffffffff84000000



cflags-y			+= -I$(srctree)/arch/mips/include/asm/mach-generic

drivers-$(CONFIG_PCI)		+= arch/mips/pci/

arch/mips/alchemy/common/dbdma.c

+45 −78
Original line number Diff line number Diff line
@@ -36,7 +36,7 @@ 
#include <linux/spinlock.h>

#include <linux/interrupt.h>

#include <linux/module.h>

#include <linux/sysdev.h>

#include <linux/syscore_ops.h>

#include <asm/mach-au1x00/au1000.h>

#include <asm/mach-au1x00/au1xxx_dbdma.h>
@@ -58,7 +58,8 @@ static DEFINE_SPINLOCK(au1xxx_dbdma_spin_lock); 
/* I couldn't find a macro that did this... */

#define ALIGN_ADDR(x, a)	((((u32)(x)) + (a-1)) & ~(a-1))



static dbdma_global_t *dbdma_gptr = (dbdma_global_t *)DDMA_GLOBAL_BASE;

static dbdma_global_t *dbdma_gptr =

			(dbdma_global_t *)KSEG1ADDR(AU1550_DBDMA_CONF_PHYS_ADDR);

static int dbdma_initialized;



static dbdev_tab_t dbdev_tab[] = {
@@ -299,7 +300,7 @@ u32 au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid, 
	if (ctp != NULL) {

		memset(ctp, 0, sizeof(chan_tab_t));

		ctp->chan_index = chan = i;

		dcp = DDMA_CHANNEL_BASE;

		dcp = KSEG1ADDR(AU1550_DBDMA_PHYS_ADDR);

		dcp += (0x0100 * chan);

		ctp->chan_ptr = (au1x_dma_chan_t *)dcp;

		cp = (au1x_dma_chan_t *)dcp;
@@ -958,105 +959,75 @@ u32 au1xxx_dbdma_put_dscr(u32 chanid, au1x_ddma_desc_t *dscr) 
}





struct alchemy_dbdma_sysdev {

	struct sys_device sysdev;

	u32 pm_regs[NUM_DBDMA_CHANS + 1][6];

};

static unsigned long alchemy_dbdma_pm_data[NUM_DBDMA_CHANS + 1][6];



static int alchemy_dbdma_suspend(struct sys_device *dev,

				 pm_message_t state)

static int alchemy_dbdma_suspend(void)

{

	struct alchemy_dbdma_sysdev *sdev =

		container_of(dev, struct alchemy_dbdma_sysdev, sysdev);

	int i;

	u32 addr;

	void __iomem *addr;



	addr = DDMA_GLOBAL_BASE;

	sdev->pm_regs[0][0] = au_readl(addr + 0x00);

	sdev->pm_regs[0][1] = au_readl(addr + 0x04);

	sdev->pm_regs[0][2] = au_readl(addr + 0x08);

	sdev->pm_regs[0][3] = au_readl(addr + 0x0c);

	addr = (void __iomem *)KSEG1ADDR(AU1550_DBDMA_CONF_PHYS_ADDR);

	alchemy_dbdma_pm_data[0][0] = __raw_readl(addr + 0x00);

	alchemy_dbdma_pm_data[0][1] = __raw_readl(addr + 0x04);

	alchemy_dbdma_pm_data[0][2] = __raw_readl(addr + 0x08);

	alchemy_dbdma_pm_data[0][3] = __raw_readl(addr + 0x0c);



	/* save channel configurations */

	for (i = 1, addr = DDMA_CHANNEL_BASE; i <= NUM_DBDMA_CHANS; i++) {

		sdev->pm_regs[i][0] = au_readl(addr + 0x00);

		sdev->pm_regs[i][1] = au_readl(addr + 0x04);

		sdev->pm_regs[i][2] = au_readl(addr + 0x08);

		sdev->pm_regs[i][3] = au_readl(addr + 0x0c);

		sdev->pm_regs[i][4] = au_readl(addr + 0x10);

		sdev->pm_regs[i][5] = au_readl(addr + 0x14);

	addr = (void __iomem *)KSEG1ADDR(AU1550_DBDMA_PHYS_ADDR);

	for (i = 1; i <= NUM_DBDMA_CHANS; i++) {

		alchemy_dbdma_pm_data[i][0] = __raw_readl(addr + 0x00);

		alchemy_dbdma_pm_data[i][1] = __raw_readl(addr + 0x04);

		alchemy_dbdma_pm_data[i][2] = __raw_readl(addr + 0x08);

		alchemy_dbdma_pm_data[i][3] = __raw_readl(addr + 0x0c);

		alchemy_dbdma_pm_data[i][4] = __raw_readl(addr + 0x10);

		alchemy_dbdma_pm_data[i][5] = __raw_readl(addr + 0x14);



		/* halt channel */

		au_writel(sdev->pm_regs[i][0] & ~1, addr + 0x00);

		au_sync();

		while (!(au_readl(addr + 0x14) & 1))

			au_sync();

		__raw_writel(alchemy_dbdma_pm_data[i][0] & ~1, addr + 0x00);

		wmb();

		while (!(__raw_readl(addr + 0x14) & 1))

			wmb();



		addr += 0x100;	/* next channel base */

	}

	/* disable channel interrupts */

	au_writel(0, DDMA_GLOBAL_BASE + 0x0c);

	au_sync();

	addr = (void __iomem *)KSEG1ADDR(AU1550_DBDMA_CONF_PHYS_ADDR);

	__raw_writel(0, addr + 0x0c);

	wmb();



	return 0;

}



static int alchemy_dbdma_resume(struct sys_device *dev)

static void alchemy_dbdma_resume(void)

{

	struct alchemy_dbdma_sysdev *sdev =

		container_of(dev, struct alchemy_dbdma_sysdev, sysdev);

	int i;

	u32 addr;

	void __iomem *addr;



	addr = DDMA_GLOBAL_BASE;

	au_writel(sdev->pm_regs[0][0], addr + 0x00);

	au_writel(sdev->pm_regs[0][1], addr + 0x04);

	au_writel(sdev->pm_regs[0][2], addr + 0x08);

	au_writel(sdev->pm_regs[0][3], addr + 0x0c);

	addr = (void __iomem *)KSEG1ADDR(AU1550_DBDMA_CONF_PHYS_ADDR);

	__raw_writel(alchemy_dbdma_pm_data[0][0], addr + 0x00);

	__raw_writel(alchemy_dbdma_pm_data[0][1], addr + 0x04);

	__raw_writel(alchemy_dbdma_pm_data[0][2], addr + 0x08);

	__raw_writel(alchemy_dbdma_pm_data[0][3], addr + 0x0c);



	/* restore channel configurations */

	for (i = 1, addr = DDMA_CHANNEL_BASE; i <= NUM_DBDMA_CHANS; i++) {

		au_writel(sdev->pm_regs[i][0], addr + 0x00);

		au_writel(sdev->pm_regs[i][1], addr + 0x04);

		au_writel(sdev->pm_regs[i][2], addr + 0x08);

		au_writel(sdev->pm_regs[i][3], addr + 0x0c);

		au_writel(sdev->pm_regs[i][4], addr + 0x10);

		au_writel(sdev->pm_regs[i][5], addr + 0x14);

		au_sync();

	addr = (void __iomem *)KSEG1ADDR(AU1550_DBDMA_PHYS_ADDR);

	for (i = 1; i <= NUM_DBDMA_CHANS; i++) {

		__raw_writel(alchemy_dbdma_pm_data[i][0], addr + 0x00);

		__raw_writel(alchemy_dbdma_pm_data[i][1], addr + 0x04);

		__raw_writel(alchemy_dbdma_pm_data[i][2], addr + 0x08);

		__raw_writel(alchemy_dbdma_pm_data[i][3], addr + 0x0c);

		__raw_writel(alchemy_dbdma_pm_data[i][4], addr + 0x10);

		__raw_writel(alchemy_dbdma_pm_data[i][5], addr + 0x14);

		wmb();

		addr += 0x100;	/* next channel base */

	}



	return 0;

}



static struct sysdev_class alchemy_dbdma_sysdev_class = {

	.name		= "dbdma",

static struct syscore_ops alchemy_dbdma_syscore_ops = {

	.suspend	= alchemy_dbdma_suspend,

	.resume		= alchemy_dbdma_resume,

};



static int __init alchemy_dbdma_sysdev_init(void)

{

	struct alchemy_dbdma_sysdev *sdev;

	int ret;



	ret = sysdev_class_register(&alchemy_dbdma_sysdev_class);

	if (ret)

		return ret;



	sdev = kzalloc(sizeof(struct alchemy_dbdma_sysdev), GFP_KERNEL);

	if (!sdev)

		return -ENOMEM;



	sdev->sysdev.id = -1;

	sdev->sysdev.cls = &alchemy_dbdma_sysdev_class;

	ret = sysdev_register(&sdev->sysdev);

	if (ret)

		kfree(sdev);



	return ret;

}



static int __init au1xxx_dbdma_init(void)

{

	int irq_nr, ret;
@@ -1084,11 +1055,7 @@ static int __init au1xxx_dbdma_init(void) 
	else {

		dbdma_initialized = 1;

		printk(KERN_INFO "Alchemy DBDMA initialized\n");

		ret = alchemy_dbdma_sysdev_init();

		if (ret) {

			printk(KERN_ERR "DBDMA PM init failed\n");

			ret = 0;

		}

		register_syscore_ops(&alchemy_dbdma_syscore_ops);

	}



	return ret;

arch/mips/alchemy/common/dma.c

+25 −21
Original line number Diff line number Diff line
@@ -58,6 +58,9 @@ 
 * returned from request_dma.

 */



/* DMA Channel register block spacing */

#define DMA_CHANNEL_LEN		0x00000100



DEFINE_SPINLOCK(au1000_dma_spin_lock);



struct dma_chan au1000_dma_table[NUM_AU1000_DMA_CHANNELS] = {
@@ -77,22 +80,23 @@ static const struct dma_dev { 
	unsigned int fifo_addr;

	unsigned int dma_mode;

} dma_dev_table[DMA_NUM_DEV] = {

	{UART0_ADDR + UART_TX, 0},

	{UART0_ADDR + UART_RX, 0},

	{0, 0},

	{0, 0},

	{AC97C_DATA, DMA_DW16 },          /* coherent */

	{AC97C_DATA, DMA_DR | DMA_DW16 }, /* coherent */

	{UART3_ADDR + UART_TX, DMA_DW8 | DMA_NC},

	{UART3_ADDR + UART_RX, DMA_DR | DMA_DW8 | DMA_NC},

	{USBD_EP0RD, DMA_DR | DMA_DW8 | DMA_NC},

	{USBD_EP0WR, DMA_DW8 | DMA_NC},

	{USBD_EP2WR, DMA_DW8 | DMA_NC},

	{USBD_EP3WR, DMA_DW8 | DMA_NC},

	{USBD_EP4RD, DMA_DR | DMA_DW8 | DMA_NC},

	{USBD_EP5RD, DMA_DR | DMA_DW8 | DMA_NC},

	{I2S_DATA, DMA_DW32 | DMA_NC},

	{I2S_DATA, DMA_DR | DMA_DW32 | DMA_NC}

	{ AU1000_UART0_PHYS_ADDR + 0x04, DMA_DW8 },		/* UART0_TX */

	{ AU1000_UART0_PHYS_ADDR + 0x00, DMA_DW8 | DMA_DR },	/* UART0_RX */

	{ 0, 0 },	/* DMA_REQ0 */

	{ 0, 0 },	/* DMA_REQ1 */

	{ AU1000_AC97_PHYS_ADDR + 0x08, DMA_DW16 },		/* AC97 TX c */

	{ AU1000_AC97_PHYS_ADDR + 0x08, DMA_DW16 | DMA_DR },	/* AC97 RX c */

	{ AU1000_UART3_PHYS_ADDR + 0x04, DMA_DW8 | DMA_NC },	/* UART3_TX */

	{ AU1000_UART3_PHYS_ADDR + 0x00, DMA_DW8 | DMA_NC | DMA_DR }, /* UART3_RX */

	{ AU1000_USBD_PHYS_ADDR + 0x00, DMA_DW8 | DMA_NC | DMA_DR }, /* EP0RD */

	{ AU1000_USBD_PHYS_ADDR + 0x04, DMA_DW8 | DMA_NC }, /* EP0WR */

	{ AU1000_USBD_PHYS_ADDR + 0x08, DMA_DW8 | DMA_NC }, /* EP2WR */

	{ AU1000_USBD_PHYS_ADDR + 0x0c, DMA_DW8 | DMA_NC }, /* EP3WR */

	{ AU1000_USBD_PHYS_ADDR + 0x10, DMA_DW8 | DMA_NC | DMA_DR }, /* EP4RD */

	{ AU1000_USBD_PHYS_ADDR + 0x14, DMA_DW8 | DMA_NC | DMA_DR }, /* EP5RD */

	/* on Au1500, these 2 are DMA_REQ2/3 (GPIO208/209) instead! */

	{ AU1000_I2S_PHYS_ADDR + 0x00, DMA_DW32 | DMA_NC},	/* I2S TX */

	{ AU1000_I2S_PHYS_ADDR + 0x00, DMA_DW32 | DMA_NC | DMA_DR}, /* I2S RX */

};



int au1000_dma_read_proc(char *buf, char **start, off_t fpos,
@@ -123,10 +127,10 @@ int au1000_dma_read_proc(char *buf, char **start, off_t fpos, 


/* Device FIFO addresses and default DMA modes - 2nd bank */

static const struct dma_dev dma_dev_table_bank2[DMA_NUM_DEV_BANK2] = {

	{ SD0_XMIT_FIFO, DMA_DS | DMA_DW8 },		/* coherent */

	{ SD0_RECV_FIFO, DMA_DS | DMA_DR | DMA_DW8 },	/* coherent */

	{ SD1_XMIT_FIFO, DMA_DS | DMA_DW8 },		/* coherent */

	{ SD1_RECV_FIFO, DMA_DS | DMA_DR | DMA_DW8 }	/* coherent */

	{ AU1100_SD0_PHYS_ADDR + 0x00, DMA_DS | DMA_DW8 },		/* coherent */

	{ AU1100_SD0_PHYS_ADDR + 0x04, DMA_DS | DMA_DW8 | DMA_DR },	/* coherent */

	{ AU1100_SD1_PHYS_ADDR + 0x00, DMA_DS | DMA_DW8 },		/* coherent */

	{ AU1100_SD1_PHYS_ADDR + 0x04, DMA_DS | DMA_DW8 | DMA_DR }	/* coherent */

};



void dump_au1000_dma_channel(unsigned int dmanr)
@@ -202,7 +206,7 @@ int request_au1000_dma(int dev_id, const char *dev_str, 
	}



	/* fill it in */

	chan->io = DMA_CHANNEL_BASE + i * DMA_CHANNEL_LEN;

	chan->io = KSEG1ADDR(AU1000_DMA_PHYS_ADDR) + i * DMA_CHANNEL_LEN;

	chan->dev_id = dev_id;

	chan->dev_str = dev_str;

	chan->fifo_addr = dev->fifo_addr;