From 62090a08aba579e6c69319fac4d4a1f806f26400 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?H=C3=A5vard=20Skinnemoen?= Date: Fri, 6 Jun 2008 18:04:56 +0200 Subject: [MTD] [NAND] avr32: atmel_nand platform code for AT32AP700x MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This function initializes and adds a platform_device for a NAND flash interface on SMC chip select 3. Signed-off-by: Håvard Skinnemoen Signed-off-by: David Woodhouse --- include/asm-avr32/arch-at32ap/board.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/asm-avr32') diff --git a/include/asm-avr32/arch-at32ap/board.h b/include/asm-avr32/arch-at32ap/board.h index a4e2d28bfb5..cc5906cd741 100644 --- a/include/asm-avr32/arch-at32ap/board.h +++ b/include/asm-avr32/arch-at32ap/board.h @@ -85,4 +85,17 @@ struct platform_device * at32_add_device_cf(unsigned int id, unsigned int extint, struct cf_platform_data *data); +/* NAND / SmartMedia */ +struct atmel_nand_data { + int enable_pin; /* chip enable */ + int det_pin; /* card detect */ + int rdy_pin; /* ready/busy */ + u8 ale; /* address line number connected to ALE */ + u8 cle; /* address line number connected to CLE */ + u8 bus_width_16; /* buswidth is 16 bit */ + struct mtd_partition *(*partition_info)(int size, int *num_partitions); +}; +struct platform_device * +at32_add_device_nand(unsigned int id, struct atmel_nand_data *data); + #endif /* __ASM_ARCH_BOARD_H */ -- cgit v1.2.3 From 3bfb1d20b547a5071d01344581eac5846ea84491 Mon Sep 17 00:00:00 2001 From: Haavard Skinnemoen Date: Tue, 8 Jul 2008 11:59:42 -0700 Subject: dmaengine: Driver for the Synopsys DesignWare DMA controller This adds a driver for the Synopsys DesignWare DMA controller (aka DMACA on AVR32 systems.) This DMA controller can be found integrated on the AT32AP7000 chip and is primarily meant for peripheral DMA transfer, but can also be used for memory-to-memory transfers. This patch is based on a driver from David Brownell which was based on an older version of the DMA Engine framework. It also implements the proposed extensions to the DMA Engine API for slave DMA operations. The dmatest client shows no problems, but there may still be room for improvement performance-wise. DMA slave transfer performance is definitely "good enough"; reading 100 MiB from an SD card running at ~20 MHz yields ~7.2 MiB/s average transfer rate. Full documentation for this controller can be found in the Synopsys DW AHB DMAC Databook: http://www.synopsys.com/designware/docs/iip/DW_ahb_dmac/latest/doc/dw_ahb_dmac_db.pdf The controller has lots of implementation options, so it's usually a good idea to check the data sheet of the chip it's intergrated on as well. The AT32AP7000 data sheet can be found here: http://www.atmel.com/dyn/products/datasheets.asp?family_id=682 Changes since v4: * Use client_count instead of dma_chan_is_in_use() * Add missing include * Unmap buffers unless client told us not to Changes since v3: * Update to latest DMA engine and DMA slave APIs * Embed the hw descriptor into the sw descriptor * Clean up and update MODULE_DESCRIPTION, copyright date, etc. Changes since v2: * Dequeue all pending transfers in terminate_all() * Rename dw_dmac.h -> dw_dmac_regs.h * Define and use controller-specific dma_slave data * Fix up a few outdated comments * Define hardware registers as structs (doesn't generate better code, unfortunately, but it looks nicer.) * Get number of channels from platform_data instead of hardcoding it based on CONFIG_WHATEVER_CPU. * Give slave clients exclusive access to the channel Acked-by: Maciej Sosnowski , Signed-off-by: Haavard Skinnemoen Signed-off-by: Dan Williams --- include/asm-avr32/arch-at32ap/at32ap700x.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'include/asm-avr32') diff --git a/include/asm-avr32/arch-at32ap/at32ap700x.h b/include/asm-avr32/arch-at32ap/at32ap700x.h index 31e48b0e732..d18a3053be0 100644 --- a/include/asm-avr32/arch-at32ap/at32ap700x.h +++ b/include/asm-avr32/arch-at32ap/at32ap700x.h @@ -30,4 +30,20 @@ #define GPIO_PIN_PD(N) (GPIO_PIOD_BASE + (N)) #define GPIO_PIN_PE(N) (GPIO_PIOE_BASE + (N)) + +/* + * DMAC peripheral hardware handshaking interfaces, used with dw_dmac + */ +#define DMAC_MCI_RX 0 +#define DMAC_MCI_TX 1 +#define DMAC_DAC_TX 2 +#define DMAC_AC97_A_RX 3 +#define DMAC_AC97_A_TX 4 +#define DMAC_AC97_B_RX 5 +#define DMAC_AC97_B_TX 6 +#define DMAC_DMAREQ_0 7 +#define DMAC_DMAREQ_1 8 +#define DMAC_DMAREQ_2 9 +#define DMAC_DMAREQ_3 10 + #endif /* __ASM_ARCH_AT32AP700X_H__ */ -- cgit v1.2.3 From 593573bc55c9e1999b9679da4e477c0220a6fbbd Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 16 Jul 2008 21:57:10 +0100 Subject: termios: Termios defines for other platforms Fix up the termios of the people who have not yet got with the program Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds --- include/asm-avr32/ioctls.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/asm-avr32') diff --git a/include/asm-avr32/ioctls.h b/include/asm-avr32/ioctls.h index 0500426b718..0cf2c0a4502 100644 --- a/include/asm-avr32/ioctls.h +++ b/include/asm-avr32/ioctls.h @@ -47,6 +47,10 @@ #define TIOCSBRK 0x5427 /* BSD compatibility */ #define TIOCCBRK 0x5428 /* BSD compatibility */ #define TIOCGSID 0x5429 /* Return the session ID of FD */ +#define TCGETS2 _IOR('T',0x2A, struct termios2) +#define TCSETS2 _IOW('T',0x2B, struct termios2) +#define TCSETSW2 _IOW('T',0x2C, struct termios2) +#define TCSETSF2 _IOW('T',0x2D, struct termios2) #define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */ #define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */ -- cgit v1.2.3 From 2351ec533ed0dd56052ab96988d2161d5ecc8ed9 Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Thu, 24 Jul 2008 08:09:32 -0400 Subject: Remove asm/semaphore.h All users have now been converted to linux/semaphore.h and we don't need to keep these files around any longer. Signed-off-by: Matthew Wilcox --- include/asm-avr32/semaphore.h | 1 - 1 file changed, 1 deletion(-) delete mode 100644 include/asm-avr32/semaphore.h (limited to 'include/asm-avr32') diff --git a/include/asm-avr32/semaphore.h b/include/asm-avr32/semaphore.h deleted file mode 100644 index d9b2034ed1d..00000000000 --- a/include/asm-avr32/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include -- cgit v1.2.3 From 27ac792ca0b0a1e7e65f20342260650516c95864 Mon Sep 17 00:00:00 2001 From: Andrea Righi Date: Wed, 23 Jul 2008 21:28:13 -0700 Subject: PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures On 32-bit architectures PAGE_ALIGN() truncates 64-bit values to the 32-bit boundary. For example: u64 val = PAGE_ALIGN(size); always returns a value < 4GB even if size is greater than 4GB. The problem resides in PAGE_MASK definition (from include/asm-x86/page.h for example): #define PAGE_SHIFT 12 #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) ... #define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) The "~" is performed on a 32-bit value, so everything in "and" with PAGE_MASK greater than 4GB will be truncated to the 32-bit boundary. Using the ALIGN() macro seems to be the right way, because it uses typeof(addr) for the mask. Also move the PAGE_ALIGN() definitions out of include/asm-*/page.h in include/linux/mm.h. See also lkml discussion: http://lkml.org/lkml/2008/6/11/237 [akpm@linux-foundation.org: fix drivers/media/video/uvc/uvc_queue.c] [akpm@linux-foundation.org: fix v850] [akpm@linux-foundation.org: fix powerpc] [akpm@linux-foundation.org: fix arm] [akpm@linux-foundation.org: fix mips] [akpm@linux-foundation.org: fix drivers/media/video/pvrusb2/pvrusb2-dvb.c] [akpm@linux-foundation.org: fix drivers/mtd/maps/uclinux.c] [akpm@linux-foundation.org: fix powerpc] Signed-off-by: Andrea Righi Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-avr32/page.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include/asm-avr32') diff --git a/include/asm-avr32/page.h b/include/asm-avr32/page.h index cbbc5ca9728..f805d1cb11b 100644 --- a/include/asm-avr32/page.h +++ b/include/asm-avr32/page.h @@ -57,9 +57,6 @@ static inline int get_order(unsigned long size) #endif /* !__ASSEMBLY__ */ -/* Align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK) - /* * The hardware maps the virtual addresses 0x80000000 -> 0x9fffffff * permanently to the physical addresses 0x00000000 -> 0x1fffffff when -- cgit v1.2.3 From b69c49b78457f681ecfb3147bd968434ee6559c1 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Fri, 25 Jul 2008 01:45:40 -0700 Subject: clean up duplicated alloc/free_thread_info We duplicate alloc/free_thread_info defines on many platforms (the majority uses __get_free_pages/free_pages). This patch defines common defines and removes these duplicated defines. __HAVE_ARCH_THREAD_INFO_ALLOCATOR is introduced for platforms that do something different. Signed-off-by: FUJITA Tomonori Acked-by: Russell King Cc: Pekka Enberg Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-avr32/thread_info.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include/asm-avr32') diff --git a/include/asm-avr32/thread_info.h b/include/asm-avr32/thread_info.h index df68631b7b2..294b25f9323 100644 --- a/include/asm-avr32/thread_info.h +++ b/include/asm-avr32/thread_info.h @@ -61,10 +61,6 @@ static inline struct thread_info *current_thread_info(void) return (struct thread_info *)addr; } -/* thread information allocation */ -#define alloc_thread_info(ti) \ - ((struct thread_info *) __get_free_pages(GFP_KERNEL, THREAD_SIZE_ORDER)) -#define free_thread_info(ti) free_pages((unsigned long)(ti), 1) #define get_thread_info(ti) get_task_struct((ti)->task) #define put_thread_info(ti) put_task_struct((ti)->task) -- cgit v1.2.3 From 7dcf2a9fced59e58e4694cdcf15850c01fdba89b Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 1 Jul 2008 19:27:16 +0300 Subject: remove dummy asm/kvm.h files This patch removes the dummy asm/kvm.h files on architectures not (yet) supporting KVM and uses the same conditional headers installation as already used for a.out.h . Also removed are superfluous install rules in the s390 and x86 Kbuild files (they are already in Kbuild.asm). Signed-off-by: Adrian Bunk Acked-by: Sam Ravnborg Signed-off-by: David Woodhouse --- include/asm-avr32/kvm.h | 6 ------ 1 file changed, 6 deletions(-) delete mode 100644 include/asm-avr32/kvm.h (limited to 'include/asm-avr32') diff --git a/include/asm-avr32/kvm.h b/include/asm-avr32/kvm.h deleted file mode 100644 index 8c5777020e2..00000000000 --- a/include/asm-avr32/kvm.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __LINUX_KVM_AVR32_H -#define __LINUX_KVM_AVR32_H - -/* avr32 does not support KVM */ - -#endif -- cgit v1.2.3 From 8d8bb39b9eba32dd70e87fd5ad5c5dd4ba118e06 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Fri, 25 Jul 2008 19:44:49 -0700 Subject: dma-mapping: add the device argument to dma_mapping_error() Add per-device dma_mapping_ops support for CONFIG_X86_64 as POWER architecture does: This enables us to cleanly fix the Calgary IOMMU issue that some devices are not behind the IOMMU (http://lkml.org/lkml/2008/5/8/423). I think that per-device dma_mapping_ops support would be also helpful for KVM people to support PCI passthrough but Andi thinks that this makes it difficult to support the PCI passthrough (see the above thread). So I CC'ed this to KVM camp. Comments are appreciated. A pointer to dma_mapping_ops to struct dev_archdata is added. If the pointer is non NULL, DMA operations in asm/dma-mapping.h use it. If it's NULL, the system-wide dma_ops pointer is used as before. If it's useful for KVM people, I plan to implement a mechanism to register a hook called when a new pci (or dma capable) device is created (it works with hot plugging). It enables IOMMUs to set up an appropriate dma_mapping_ops per device. The major obstacle is that dma_mapping_error doesn't take a pointer to the device unlike other DMA operations. So x86 can't have dma_mapping_ops per device. Note all the POWER IOMMUs use the same dma_mapping_error function so this is not a problem for POWER but x86 IOMMUs use different dma_mapping_error functions. The first patch adds the device argument to dma_mapping_error. The patch is trivial but large since it touches lots of drivers and dma-mapping.h in all the architecture. This patch: dma_mapping_error() doesn't take a pointer to the device unlike other DMA operations. So we can't have dma_mapping_ops per device. Note that POWER already has dma_mapping_ops per device but all the POWER IOMMUs use the same dma_mapping_error function. x86 IOMMUs use device argument. [akpm@linux-foundation.org: fix sge] [akpm@linux-foundation.org: fix svc_rdma] [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix bnx2x] [akpm@linux-foundation.org: fix s2io] [akpm@linux-foundation.org: fix pasemi_mac] [akpm@linux-foundation.org: fix sdhci] [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix sparc] [akpm@linux-foundation.org: fix ibmvscsi] Signed-off-by: FUJITA Tomonori Cc: Muli Ben-Yehuda Cc: Andi Kleen Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Avi Kivity Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-avr32/dma-mapping.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/asm-avr32') diff --git a/include/asm-avr32/dma-mapping.h b/include/asm-avr32/dma-mapping.h index 57dc672bab8..0399359ab5d 100644 --- a/include/asm-avr32/dma-mapping.h +++ b/include/asm-avr32/dma-mapping.h @@ -35,7 +35,7 @@ static inline int dma_set_mask(struct device *dev, u64 dma_mask) /* * dma_map_single can't fail as it is implemented now. */ -static inline int dma_mapping_error(dma_addr_t addr) +static inline int dma_mapping_error(struct device *dev, dma_addr_t addr) { return 0; } -- cgit v1.2.3 From 7f2da1e7d0330395e5e9e350b879b98a1ea495df Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 10 May 2008 20:44:54 -0400 Subject: [PATCH] kill altroot long overdue... Signed-off-by: Al Viro --- include/asm-avr32/namei.h | 7 ------- 1 file changed, 7 deletions(-) delete mode 100644 include/asm-avr32/namei.h (limited to 'include/asm-avr32') diff --git a/include/asm-avr32/namei.h b/include/asm-avr32/namei.h deleted file mode 100644 index f0a26de06ca..00000000000 --- a/include/asm-avr32/namei.h +++ /dev/null @@ -1,7 +0,0 @@ -#ifndef __ASM_AVR32_NAMEI_H -#define __ASM_AVR32_NAMEI_H - -/* This dummy routine may be changed to something useful */ -#define __emul_prefix() NULL - -#endif /* __ASM_AVR32_NAMEI_H */ -- cgit v1.2.3