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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-07 15:47:19 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-07 15:47:19 -0800
commit4a31c08d2fecc74a630653828f5388fbb037f8c2 (patch)
treec3baf80157bab2cf6bdf3d26772001e43233aad6 /arch
parent2ddb3b15f1b46836c61cfac5b00d8f08a24236e6 (diff)
parent0272282f7cffb469cd2676dcb6e58bc942fcf8a8 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (26 commits) sh: Convert sh to use read/update_persistent_clock sh: Move PMB debugfs entry initialization to later stage sh: Fix up flush_cache_vmap() on SMP. sh: fix up MMU reset with variable PMB mapping sizes. sh: establish PMB mappings for NUMA nodes. sh: check for existing mappings for bolted PMB entries. sh: fixed virt/phys mapping helpers for PMB. sh: make pmb iomapping configurable. sh: reworked dynamic PMB mapping. sh: Fix up cpumask_of_pcibus() for the NUMA build. serial: sh-sci: Tidy up build warnings. sh: Fix up ctrl_read/write stragglers in migor setup. serial: sh-sci: Add DMA support. dmaengine: shdma: extend .device_terminate_all() to record partial transfer sh: merge sh7722 and sh7724 DMA register definitions sh: activate runtime PM for dmaengine on sh7722 and sh7724 dmaengine: shdma: add runtime PM support. dmaengine: shdma: separate DMA headers. dmaengine: shdma: convert to platform device resources dmaengine: shdma: fix DMA error handling. ...
Diffstat (limited to 'arch')
-rw-r--r--arch/sh/boards/mach-migor/setup.c16
-rw-r--r--arch/sh/boot/compressed/cache.c2
-rw-r--r--arch/sh/include/asm/cacheflush.h4
-rw-r--r--arch/sh/include/asm/dma-register.h51
-rw-r--r--arch/sh/include/asm/dma-sh.h88
-rw-r--r--arch/sh/include/asm/dmaengine.h93
-rw-r--r--arch/sh/include/asm/io.h23
-rw-r--r--arch/sh/include/asm/mmu.h31
-rw-r--r--arch/sh/include/asm/siu.h2
-rw-r--r--arch/sh/include/asm/topology.h2
-rw-r--r--arch/sh/include/cpu-sh3/cpu/dma-register.h41
-rw-r--r--arch/sh/include/cpu-sh3/cpu/dma.h27
-rw-r--r--arch/sh/include/cpu-sh4/cpu/dma-register.h112
-rw-r--r--arch/sh/include/cpu-sh4/cpu/dma-sh4a.h62
-rw-r--r--arch/sh/include/cpu-sh4/cpu/dma.h36
-rw-r--r--arch/sh/include/mach-migor/mach/migor.h1
-rw-r--r--arch/sh/kernel/cpu/sh4a/setup-sh7722.c190
-rw-r--r--arch/sh/kernel/cpu/sh4a/setup-sh7724.c186
-rw-r--r--arch/sh/kernel/cpu/sh4a/setup-sh7780.c134
-rw-r--r--arch/sh/kernel/cpu/sh4a/setup-sh7785.c134
-rw-r--r--arch/sh/kernel/hw_breakpoint.c30
-rw-r--r--arch/sh/kernel/setup.c3
-rw-r--r--arch/sh/kernel/time.c6
-rw-r--r--arch/sh/lib/libgcc.h3
-rw-r--r--arch/sh/mm/ioremap.c70
-rw-r--r--arch/sh/mm/ioremap_fixed.c11
-rw-r--r--arch/sh/mm/numa.c3
-rw-r--r--arch/sh/mm/pmb.c412
28 files changed, 1295 insertions, 478 deletions
diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c
index be300aaca6fe..7da0fc94a01e 100644
--- a/arch/sh/boards/mach-migor/setup.c
+++ b/arch/sh/boards/mach-migor/setup.c
@@ -419,6 +419,9 @@ static struct i2c_board_info migor_i2c_devices[] = {
I2C_BOARD_INFO("migor_ts", 0x51),
.irq = 38, /* IRQ6 */
},
+ {
+ I2C_BOARD_INFO("wm8978", 0x1a),
+ },
};
static struct i2c_board_info migor_i2c_camera[] = {
@@ -619,6 +622,19 @@ static int __init migor_devices_setup(void)
platform_resource_setup_memory(&migor_ceu_device, "ceu", 4 << 20);
+ /* SIU: Port B */
+ gpio_request(GPIO_FN_SIUBOLR, NULL);
+ gpio_request(GPIO_FN_SIUBOBT, NULL);
+ gpio_request(GPIO_FN_SIUBISLD, NULL);
+ gpio_request(GPIO_FN_SIUBOSLD, NULL);
+ gpio_request(GPIO_FN_SIUMCKB, NULL);
+
+ /*
+ * The original driver sets SIUB OLR/OBT, ILR/IBT, and SIUA OLR/OBT to
+ * output. Need only SIUB, set to output for master mode (table 34.2)
+ */
+ __raw_writew(__raw_readw(PORT_MSELCRA) | 1, PORT_MSELCRA);
+
i2c_register_board_info(0, migor_i2c_devices,
ARRAY_SIZE(migor_i2c_devices));
diff --git a/arch/sh/boot/compressed/cache.c b/arch/sh/boot/compressed/cache.c
index e27fc74f228c..d0b77b68a4d0 100644
--- a/arch/sh/boot/compressed/cache.c
+++ b/arch/sh/boot/compressed/cache.c
@@ -5,7 +5,7 @@ int cache_control(unsigned int command)
for (i = 0; i < (32 * 1024); i += 32) {
(void)*p;
- p += (32 / sizeof (int));
+ p += (32 / sizeof(int));
}
return 0;
diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
index da3ebec921a7..1f4e562c5e8c 100644
--- a/arch/sh/include/asm/cacheflush.h
+++ b/arch/sh/include/asm/cacheflush.h
@@ -86,8 +86,8 @@ extern void copy_from_user_page(struct vm_area_struct *vma,
struct page *page, unsigned long vaddr, void *dst, const void *src,
unsigned long len);
-#define flush_cache_vmap(start, end) flush_cache_all()
-#define flush_cache_vunmap(start, end) flush_cache_all()
+#define flush_cache_vmap(start, end) local_flush_cache_all(NULL)
+#define flush_cache_vunmap(start, end) local_flush_cache_all(NULL)
#define flush_dcache_mmap_lock(mapping) do { } while (0)
#define flush_dcache_mmap_unlock(mapping) do { } while (0)
diff --git a/arch/sh/include/asm/dma-register.h b/arch/sh/include/asm/dma-register.h
new file mode 100644
index 000000000000..51cd78feacff
--- /dev/null
+++ b/arch/sh/include/asm/dma-register.h
@@ -0,0 +1,51 @@
+/*
+ * Common header for the legacy SH DMA driver and the new dmaengine driver
+ *
+ * extracted from arch/sh/include/asm/dma-sh.h:
+ *
+ * Copyright (C) 2000 Takashi YOSHII
+ * Copyright (C) 2003 Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#ifndef DMA_REGISTER_H
+#define DMA_REGISTER_H
+
+/* DMA register */
+#define SAR 0x00
+#define DAR 0x04
+#define TCR 0x08
+#define CHCR 0x0C
+#define DMAOR 0x40
+
+/* DMAOR definitions */
+#define DMAOR_AE 0x00000004
+#define DMAOR_NMIF 0x00000002
+#define DMAOR_DME 0x00000001
+
+/* Definitions for the SuperH DMAC */
+#define REQ_L 0x00000000
+#define REQ_E 0x00080000
+#define RACK_H 0x00000000
+#define RACK_L 0x00040000
+#define ACK_R 0x00000000
+#define ACK_W 0x00020000
+#define ACK_H 0x00000000
+#define ACK_L 0x00010000
+#define DM_INC 0x00004000
+#define DM_DEC 0x00008000
+#define DM_FIX 0x0000c000
+#define SM_INC 0x00001000
+#define SM_DEC 0x00002000
+#define SM_FIX 0x00003000
+#define RS_IN 0x00000200
+#define RS_OUT 0x00000300
+#define TS_BLK 0x00000040
+#define TM_BUR 0x00000020
+#define CHCR_DE 0x00000001
+#define CHCR_TE 0x00000002
+#define CHCR_IE 0x00000004
+
+#endif
diff --git a/arch/sh/include/asm/dma-sh.h b/arch/sh/include/asm/dma-sh.h
index e934a2e66651..f3acb8e34c6b 100644
--- a/arch/sh/include/asm/dma-sh.h
+++ b/arch/sh/include/asm/dma-sh.h
@@ -11,7 +11,8 @@
#ifndef __DMA_SH_H
#define __DMA_SH_H
-#include <asm/dma.h>
+#include <asm/dma-register.h>
+#include <cpu/dma-register.h>
#include <cpu/dma.h>
/* DMAOR contorl: The DMAOR access size is different by CPU.*/
@@ -53,34 +54,6 @@ static int dmte_irq_map[] __maybe_unused = {
#endif
};
-/* Definitions for the SuperH DMAC */
-#define REQ_L 0x00000000
-#define REQ_E 0x00080000
-#define RACK_H 0x00000000
-#define RACK_L 0x00040000
-#define ACK_R 0x00000000
-#define ACK_W 0x00020000
-#define ACK_H 0x00000000
-#define ACK_L 0x00010000
-#define DM_INC 0x00004000
-#define DM_DEC 0x00008000
-#define DM_FIX 0x0000c000
-#define SM_INC 0x00001000
-#define SM_DEC 0x00002000
-#define SM_FIX 0x00003000
-#define RS_IN 0x00000200
-#define RS_OUT 0x00000300
-#define TS_BLK 0x00000040
-#define TM_BUR 0x00000020
-#define CHCR_DE 0x00000001
-#define CHCR_TE 0x00000002
-#define CHCR_IE 0x00000004
-
-/* DMAOR definitions */
-#define DMAOR_AE 0x00000004
-#define DMAOR_NMIF 0x00000002
-#define DMAOR_DME 0x00000001
-
/*
* Define the default configuration for dual address memory-memory transfer.
* The 0x400 value represents auto-request, external->external.
@@ -111,61 +84,4 @@ static u32 dma_base_addr[] __maybe_unused = {
#endif
};
-/* DMA register */
-#define SAR 0x00
-#define DAR 0x04
-#define TCR 0x08
-#define CHCR 0x0C
-#define DMAOR 0x40
-
-/*
- * for dma engine
- *
- * SuperH DMA mode
- */
-#define SHDMA_MIX_IRQ (1 << 1)
-#define SHDMA_DMAOR1 (1 << 2)
-#define SHDMA_DMAE1 (1 << 3)
-
-enum sh_dmae_slave_chan_id {
- SHDMA_SLAVE_SCIF0_TX,
- SHDMA_SLAVE_SCIF0_RX,
- SHDMA_SLAVE_SCIF1_TX,
- SHDMA_SLAVE_SCIF1_RX,
- SHDMA_SLAVE_SCIF2_TX,
- SHDMA_SLAVE_SCIF2_RX,
- SHDMA_SLAVE_SCIF3_TX,
- SHDMA_SLAVE_SCIF3_RX,
- SHDMA_SLAVE_SCIF4_TX,
- SHDMA_SLAVE_SCIF4_RX,
- SHDMA_SLAVE_SCIF5_TX,
- SHDMA_SLAVE_SCIF5_RX,
- SHDMA_SLAVE_SIUA_TX,
- SHDMA_SLAVE_SIUA_RX,
- SHDMA_SLAVE_SIUB_TX,
- SHDMA_SLAVE_SIUB_RX,
- SHDMA_SLAVE_NUMBER, /* Must stay last */
-};
-
-struct sh_dmae_slave_config {
- enum sh_dmae_slave_chan_id slave_id;
- dma_addr_t addr;
- u32 chcr;
- char mid_rid;
-};
-
-struct sh_dmae_pdata {
- unsigned int mode;
- struct sh_dmae_slave_config *config;
- int config_num;
-};
-
-struct device;
-
-struct sh_dmae_slave {
- enum sh_dmae_slave_chan_id slave_id; /* Set by the platform */
- struct device *dma_dev; /* Set by the platform */
- struct sh_dmae_slave_config *config; /* Set by the driver */
-};
-
#endif /* __DMA_SH_H */
diff --git a/arch/sh/include/asm/dmaengine.h b/arch/sh/include/asm/dmaengine.h
new file mode 100644
index 000000000000..bf2f30cf0a27
--- /dev/null
+++ b/arch/sh/include/asm/dmaengine.h
@@ -0,0 +1,93 @@
+/*
+ * Header for the new SH dmaengine driver
+ *
+ * Copyright (C) 2010 Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef ASM_DMAENGINE_H
+#define ASM_DMAENGINE_H
+
+#include <linux/dmaengine.h>
+#include <linux/list.h>
+
+#include <asm/dma-register.h>
+
+#define SH_DMAC_MAX_CHANNELS 6
+
+enum sh_dmae_slave_chan_id {
+ SHDMA_SLAVE_SCIF0_TX,
+ SHDMA_SLAVE_SCIF0_RX,
+ SHDMA_SLAVE_SCIF1_TX,
+ SHDMA_SLAVE_SCIF1_RX,
+ SHDMA_SLAVE_SCIF2_TX,
+ SHDMA_SLAVE_SCIF2_RX,
+ SHDMA_SLAVE_SCIF3_TX,
+ SHDMA_SLAVE_SCIF3_RX,
+ SHDMA_SLAVE_SCIF4_TX,
+ SHDMA_SLAVE_SCIF4_RX,
+ SHDMA_SLAVE_SCIF5_TX,
+ SHDMA_SLAVE_SCIF5_RX,
+ SHDMA_SLAVE_SIUA_TX,
+ SHDMA_SLAVE_SIUA_RX,
+ SHDMA_SLAVE_SIUB_TX,
+ SHDMA_SLAVE_SIUB_RX,
+ SHDMA_SLAVE_NUMBER, /* Must stay last */
+};
+
+struct sh_dmae_slave_config {
+ enum sh_dmae_slave_chan_id slave_id;
+ dma_addr_t addr;
+ u32 chcr;
+ char mid_rid;
+};
+
+struct sh_dmae_channel {
+ unsigned int offset;
+ unsigned int dmars;
+ unsigned int dmars_bit;
+};
+
+struct sh_dmae_pdata {
+ struct sh_dmae_slave_config *slave;
+ int slave_num;
+ struct sh_dmae_channel *channel;
+ int channel_num;
+ unsigned int ts_low_shift;
+ unsigned int ts_low_mask;
+ unsigned int ts_high_shift;
+ unsigned int ts_high_mask;
+ unsigned int *ts_shift;
+ int ts_shift_num;
+ u16 dmaor_init;
+};
+
+struct device;
+
+/* Used by slave DMA clients to request DMA to/from a specific peripheral */
+struct sh_dmae_slave {
+ enum sh_dmae_slave_chan_id slave_id; /* Set by the platform */
+ struct device *dma_dev; /* Set by the platform */
+ struct sh_dmae_slave_config *config; /* Set by the driver */
+};
+
+struct sh_dmae_regs {
+ u32 sar; /* SAR / source address */
+ u32 dar; /* DAR / destination address */
+ u32 tcr; /* TCR / transfer count */
+};
+
+struct sh_desc {
+ struct sh_dmae_regs hw;
+ struct list_head node;
+ struct dma_async_tx_descriptor async_tx;
+ enum dma_data_direction direction;
+ dma_cookie_t cookie;
+ size_t partial;
+ int chunks;
+ int mark;
+};
+
+#endif
diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index 7dab7b23a5ec..f689554e17c1 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -291,21 +291,21 @@ unsigned long long poke_real_address_q(unsigned long long addr,
* doesn't exist, so everything must go through page tables.
*/
#ifdef CONFIG_MMU
-void __iomem *__ioremap_caller(unsigned long offset, unsigned long size,
+void __iomem *__ioremap_caller(phys_addr_t offset, unsigned long size,
pgprot_t prot, void *caller);
void __iounmap(void __iomem *addr);
static inline void __iomem *
-__ioremap(unsigned long offset, unsigned long size, pgprot_t prot)
+__ioremap(phys_addr_t offset, unsigned long size, pgprot_t prot)
{
return __ioremap_caller(offset, size, prot, __builtin_return_address(0));
}
static inline void __iomem *
-__ioremap_29bit(unsigned long offset, unsigned long size, pgprot_t prot)
+__ioremap_29bit(phys_addr_t offset, unsigned long size, pgprot_t prot)
{
#ifdef CONFIG_29BIT
- unsigned long last_addr = offset + size - 1;
+ phys_addr_t last_addr = offset + size - 1;
/*
* For P1 and P2 space this is trivial, as everything is already
@@ -329,7 +329,7 @@ __ioremap_29bit(unsigned long offset, unsigned long size, pgprot_t prot)
}
static inline void __iomem *
-__ioremap_mode(unsigned long offset, unsigned long size, pgprot_t prot)
+__ioremap_mode(phys_addr_t offset, unsigned long size, pgprot_t prot)
{
void __iomem *ret;
@@ -349,35 +349,32 @@ __ioremap_mode(unsigned long offset, unsigned long size, pgprot_t prot)
#define __iounmap(addr) do { } while (0)
#endif /* CONFIG_MMU */
-static inline void __iomem *
-ioremap(unsigned long offset, unsigned long size)
+static inline void __iomem *ioremap(phys_addr_t offset, unsigned long size)
{
return __ioremap_mode(offset, size, PAGE_KERNEL_NOCACHE);
}
static inline void __iomem *
-ioremap_cache(unsigned long offset, unsigned long size)
+ioremap_cache(phys_addr_t offset, unsigned long size)
{
return __ioremap_mode(offset, size, PAGE_KERNEL);
}
#ifdef CONFIG_HAVE_IOREMAP_PROT
static inline void __iomem *
-ioremap_prot(resource_size_t offset, unsigned long size, unsigned long flags)
+ioremap_prot(phys_addr_t offset, unsigned long size, unsigned long flags)
{
return __ioremap_mode(offset, size, __pgprot(flags));
}
#endif
#ifdef CONFIG_IOREMAP_FIXED
-extern void __iomem *ioremap_fixed(resource_size_t, unsigned long,
- unsigned long, pgprot_t);
+extern void __iomem *ioremap_fixed(phys_addr_t, unsigned long, pgprot_t);
extern int iounmap_fixed(void __iomem *);
extern void ioremap_fixed_init(void);
#else
static inline void __iomem *
-ioremap_fixed(resource_size_t phys_addr, unsigned long offset,
- unsigned long size, pgprot_t prot)
+ioremap_fixed(phys_addr_t phys_addr, unsigned long size, pgprot_t prot)
{
BUG();
return NULL;
diff --git a/arch/sh/include/asm/mmu.h b/arch/sh/include/asm/mmu.h
index 15a05b615ba7..19fe84550b49 100644
--- a/arch/sh/include/asm/mmu.h
+++ b/arch/sh/include/asm/mmu.h
@@ -55,19 +55,29 @@ typedef struct {
#ifdef CONFIG_PMB
/* arch/sh/mm/pmb.c */
-long pmb_remap(unsigned long virt, unsigned long phys,
- unsigned long size, pgprot_t prot);
-void pmb_unmap(unsigned long addr);
-void pmb_init(void);
bool __in_29bit_mode(void);
+
+void pmb_init(void);
+int pmb_bolt_mapping(unsigned long virt, phys_addr_t phys,
+ unsigned long size, pgprot_t prot);
+void __iomem *pmb_remap_caller(phys_addr_t phys, unsigned long size,
+ pgprot_t prot, void *caller);
+int pmb_unmap(void __iomem *addr);
+
#else
-static inline long pmb_remap(unsigned long virt, unsigned long phys,
- unsigned long size, pgprot_t prot)
+
+static inline void __iomem *
+pmb_remap_caller(phys_addr_t phys, unsigned long size,
+ pgprot_t prot, void *caller)
+{
+ return NULL;
+}
+
+static inline int pmb_unmap(void __iomem *addr)
{
return -EINVAL;
}
-#define pmb_unmap(addr) do { } while (0)
#define pmb_init(addr) do { } while (0)
#ifdef CONFIG_29BIT
@@ -77,6 +87,13 @@ static inline long pmb_remap(unsigned long virt, unsigned long phys,
#endif
#endif /* CONFIG_PMB */
+
+static inline void __iomem *
+pmb_remap(phys_addr_t phys, unsigned long size, pgprot_t prot)
+{
+ return pmb_remap_caller(phys, size, prot, __builtin_return_address(0));
+}
+
#endif /* __ASSEMBLY__ */
#endif /* __MMU_H */
diff --git a/arch/sh/include/asm/siu.h b/arch/sh/include/asm/siu.h
index 57565a3b551f..f1b1e6944a5f 100644
--- a/arch/sh/include/asm/siu.h
+++ b/arch/sh/include/asm/siu.h
@@ -11,7 +11,7 @@
#ifndef ASM_SIU_H
#define ASM_SIU_H
-#include <asm/dma-sh.h>
+#include <asm/dmaengine.h>
struct device;
diff --git a/arch/sh/include/asm/topology.h b/arch/sh/include/asm/topology.h
index 37cdadd975ac..88e734069fa6 100644
--- a/arch/sh/include/asm/topology.h
+++ b/arch/sh/include/asm/topology.h
@@ -35,7 +35,7 @@
#define pcibus_to_node(bus) ((void)(bus), -1)
#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \
- CPU_MASK_ALL_PTR : \
+ cpu_all_mask : \
cpumask_of_node(pcibus_to_node(bus)))
#endif
diff --git a/arch/sh/include/cpu-sh3/cpu/dma-register.h b/arch/sh/include/cpu-sh3/cpu/dma-register.h
new file mode 100644
index 000000000000..2349e488c9a6
--- /dev/null
+++ b/arch/sh/include/cpu-sh3/cpu/dma-register.h
@@ -0,0 +1,41 @@
+/*
+ * SH3 CPU-specific DMA definitions, used by both DMA drivers
+ *
+ * Copyright (C) 2010 Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef CPU_DMA_REGISTER_H
+#define CPU_DMA_REGISTER_H
+
+#define CHCR_TS_LOW_MASK 0x18
+#define CHCR_TS_LOW_SHIFT 3
+#define CHCR_TS_HIGH_MASK 0
+#define CHCR_TS_HIGH_SHIFT 0
+
+#define DMAOR_INIT DMAOR_DME
+
+/*
+ * The SuperH DMAC supports a number of transmit sizes, we list them here,
+ * with their respective values as they appear in the CHCR registers.
+ */
+enum {
+ XMIT_SZ_8BIT,
+ XMIT_SZ_16BIT,
+ XMIT_SZ_32BIT,
+ XMIT_SZ_128BIT,
+};
+
+/* log2(size / 8) - used to calculate number of transfers */
+#define TS_SHIFT { \
+ [XMIT_SZ_8BIT] = 0, \
+ [XMIT_SZ_16BIT] = 1, \
+ [XMIT_SZ_32BIT] = 2, \
+ [XMIT_SZ_128BIT] = 4, \
+}
+
+#define TS_INDEX2VAL(i) (((i) & 3) << CHCR_TS_LOW_SHIFT)
+
+#endif
diff --git a/arch/sh/include/cpu-sh3/cpu/dma.h b/arch/sh/include/cpu-sh3/cpu/dma.h
index 207811a7a650..24e28b91c9d5 100644
--- a/arch/sh/include/cpu-sh3/cpu/dma.h
+++ b/arch/sh/include/cpu-sh3/cpu/dma.h
@@ -20,31 +20,4 @@
#define TS_32 0x00000010
#define TS_128 0x00000018
-#define CHCR_TS_LOW_MASK 0x18
-#define CHCR_TS_LOW_SHIFT 3
-#define CHCR_TS_HIGH_MASK 0
-#define CHCR_TS_HIGH_SHIFT 0
-
-#define DMAOR_INIT DMAOR_DME
-
-/*
- * The SuperH DMAC supports a number of transmit sizes, we list them here,
- * with their respective values as they appear in the CHCR registers.
- */
-enum {
- XMIT_SZ_8BIT,
- XMIT_SZ_16BIT,
- XMIT_SZ_32BIT,
- XMIT_SZ_128BIT,
-};
-
-#define TS_SHIFT { \
- [XMIT_SZ_8BIT] = 0, \
- [XMIT_SZ_16BIT] = 1, \
- [XMIT_SZ_32BIT] = 2, \
- [XMIT_SZ_128BIT] = 4, \
-}
-
-#define TS_INDEX2VAL(i) (((i) & 3) << CHCR_TS_LOW_SHIFT)
-
#endif /* __ASM_CPU_SH3_DMA_H */
diff --git a/arch/sh/include/cpu-sh4/cpu/dma-register.h b/arch/sh/include/cpu-sh4/cpu/dma-register.h
new file mode 100644
index 000000000000..55f9fec082d4
--- /dev/null
+++ b/arch/sh/include/cpu-sh4/cpu/dma-register.h
@@ -0,0 +1,112 @@
+/*
+ * SH4 CPU-specific DMA definitions, used by both DMA drivers
+ *
+ * Copyright (C) 2010 Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef CPU_DMA_REGISTER_H
+#define CPU_DMA_REGISTER_H
+
+/* SH7751/7760/7780 DMA IRQ sources */
+
+#ifdef CONFIG_CPU_SH4A
+
+#define DMAOR_INIT DMAOR_DME
+
+#if defined(CONFIG_CPU_SUBTYPE_SH7343) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7730)
+#define CHCR_TS_LOW_MASK 0x00000018
+#define CHCR_TS_LOW_SHIFT 3
+#define CHCR_TS_HIGH_MASK 0
+#define CHCR_TS_HIGH_SHIFT 0
+#elif defined(CONFIG_CPU_SUBTYPE_SH7722) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7724)
+#define CHCR_TS_LOW_MASK 0x00000018
+#define CHCR_TS_LOW_SHIFT 3
+#define CHCR_TS_HIGH_MASK 0x00300000
+#define CHCR_TS_HIGH_SHIFT (20 - 2) /* 2 bits for shifted low TS */
+#elif defined(CONFIG_CPU_SUBTYPE_SH7763) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7764)
+#define CHCR_TS_LOW_MASK 0x00000018
+#define CHCR_TS_LOW_SHIFT 3
+#define CHCR_TS_HIGH_MASK 0
+#define CHCR_TS_HIGH_SHIFT 0
+#elif defined(CONFIG_CPU_SUBTYPE_SH7723)
+#define CHCR_TS_LOW_MASK 0x00000018
+#define CHCR_TS_LOW_SHIFT 3
+#define CHCR_TS_HIGH_MASK 0
+#define CHCR_TS_HIGH_SHIFT 0
+#elif defined(CONFIG_CPU_SUBTYPE_SH7780)
+#define CHCR_TS_LOW_MASK 0x00000018
+#define CHCR_TS_LOW_SHIFT 3
+#define CHCR_TS_HIGH_MASK 0
+#define CHCR_TS_HIGH_SHIFT 0
+#else /* SH7785 */
+#define CHCR_TS_LOW_MASK 0x00000018
+#define CHCR_TS_LOW_SHIFT 3
+#define CHCR_TS_HIGH_MASK 0
+#define CHCR_TS_HIGH_SHIFT 0
+#endif
+
+/* Transmit sizes and respective CHCR register values */
+enum {
+ XMIT_SZ_8BIT = 0,
+ XMIT_SZ_16BIT = 1,
+ XMIT_SZ_32BIT = 2,
+ XMIT_SZ_64BIT = 7,
+ XMIT_SZ_128BIT = 3,
+ XMIT_SZ_256BIT = 4,
+ XMIT_SZ_128BIT_BLK = 0xb,
+ XMIT_SZ_256BIT_BLK = 0xc,
+};
+
+/* log2(size / 8) - used to calculate number of transfers */
+#define TS_SHIFT { \
+ [XMIT_SZ_8BIT] = 0, \
+ [XMIT_SZ_16BIT] = 1, \
+ [XMIT_SZ_32BIT] = 2, \
+ [XMIT_SZ_64BIT] = 3, \
+ [XMIT_SZ_128BIT] = 4, \
+ [XMIT_SZ_256BIT] = 5, \
+ [XMIT_SZ_128BIT_BLK] = 4, \
+ [XMIT_SZ_256BIT_BLK] = 5, \
+}
+
+#define TS_INDEX2VAL(i) ((((i) & 3) << CHCR_TS_LOW_SHIFT) | \
+ ((((i) >> 2) & 3) << CHCR_TS_HIGH_SHIFT))
+
+#else /* CONFIG_CPU_SH4A */
+
+#define DMAOR_INIT (0x8000 | DMAOR_DME)
+
+#define CHCR_TS_LOW_MASK 0x70
+#define CHCR_TS_LOW_SHIFT 4
+#define CHCR_TS_HIGH_MASK 0
+#define CHCR_TS_HIGH_SHIFT 0
+
+/* Transmit sizes and respective CHCR register values */
+enum {
+ XMIT_SZ_8BIT = 1,
+ XMIT_SZ_16BIT = 2,
+ XMIT_SZ_32BIT = 3,
+ XMIT_SZ_64BIT = 0,
+ XMIT_SZ_256BIT = 4,
+};
+
+/* log2(size / 8) - used to calculate number of transfers */
+#define TS_SHIFT { \
+ [XMIT_SZ_8BIT] = 0, \
+ [XMIT_SZ_16BIT] = 1, \
+ [XMIT_SZ_32BIT] = 2, \
+ [XMIT_SZ_64BIT] = 3, \
+ [XMIT_SZ_256BIT] = 5, \
+}
+
+#define TS_INDEX2VAL(i) (((i) & 7) << CHCR_TS_LOW_SHIFT)
+
+#endif /* CONFIG_CPU_SH4A */
+
+#endif
diff --git a/arch/sh/include/cpu-sh4/cpu/dma-sh4a.h b/arch/sh/include/cpu-sh4/cpu/dma-sh4a.h
index e734ea47d8a0..9647e681fd27 100644
--- a/arch/sh/include/cpu-sh4/cpu/dma-sh4a.h
+++ b/arch/sh/include/cpu-sh4/cpu/dma-sh4a.h
@@ -8,20 +8,12 @@
#define DMAE0_IRQ 78 /* DMA Error IRQ*/
#define SH_DMAC_BASE0 0xFE008020
#define SH_DMARS_BASE0 0xFE009000
-#define CHCR_TS_LOW_MASK 0x00000018
-#define CHCR_TS_LOW_SHIFT 3
-#define CHCR_TS_HIGH_MASK 0
-#define CHCR_TS_HIGH_SHIFT 0
#elif defined(CONFIG_CPU_SUBTYPE_SH7722)
#define DMTE0_IRQ 48
#define DMTE4_IRQ 76
#define DMAE0_IRQ 78 /* DMA Error IRQ*/
#define SH_DMAC_BASE0 0xFE008020
#define SH_DMARS_BASE0 0xFE009000
-#define CHCR_TS_LOW_MASK 0x00000018
-#define CHCR_TS_LOW_SHIFT 3
-#define CHCR_TS_HIGH_MASK 0x00300000
-#define CHCR_TS_HIGH_SHIFT 20
#elif defined(CONFIG_CPU_SUBTYPE_SH7763) || \
defined(CONFIG_CPU_SUBTYPE_SH7764)
#define DMTE0_IRQ 34
@@ -29,10 +21,6 @@
#define DMAE0_IRQ 38
#define SH_DMAC_BASE0 0xFF608020
#define SH_DMARS_BASE0 0xFF609000
-#define CHCR_TS_LOW_MASK 0x00000018
-#define CHCR_TS_LOW_SHIFT 3
-#define CHCR_TS_HIGH_MASK 0
-#define CHCR_TS_HIGH_SHIFT 0
#elif defined(CONFIG_CPU_SUBTYPE_SH7723)
#define DMTE0_IRQ 48 /* DMAC0A*/
#define DMTE4_IRQ 76 /* DMAC0B */
@@ -46,10 +34,6 @@
#define SH_DMAC_BASE0 0xFE008020
#define SH_DMAC_BASE1 0xFDC08020
#define SH_DMARS_BASE0 0xFDC09000
-#define CHCR_TS_LOW_MASK 0x00000018
-#define CHCR_TS_LOW_SHIFT 3
-#define CHCR_TS_HIGH_MASK 0
-#define CHCR_TS_HIGH_SHIFT 0
#elif defined(CONFIG_CPU_SUBTYPE_SH7724)
#define DMTE0_IRQ 48 /* DMAC0A*/
#define DMTE4_IRQ 76 /* DMAC0B */
@@ -64,10 +48,6 @@
#define SH_DMAC_BASE1 0xFDC08020
#define SH_DMARS_BASE0 0xFE009000
#define SH_DMARS_BASE1 0xFDC09000
-#define CHCR_TS_LOW_MASK 0x00000018
-#define CHCR_TS_LOW_SHIFT 3
-#define CHCR_TS_HIGH_MASK 0x00600000
-#define CHCR_TS_HIGH_SHIFT 21
#elif defined(CONFIG_CPU_SUBTYPE_SH7780)
#define DMTE0_IRQ 34
#define DMTE4_IRQ 44
@@ -80,10 +60,6 @@
#define SH_DMAC_BASE0 0xFC808020
#define SH_DMAC_BASE1 0xFC818020
#define SH_DMARS_BASE0 0xFC809000
-#define CHCR_TS_LOW_MASK 0x00000018
-#define CHCR_TS_LOW_SHIFT 3
-#define CHCR_TS_HIGH_MASK 0
-#define CHCR_TS_HIGH_SHIFT 0
#else /* SH7785 */
#define DMTE0_IRQ 33
#define DMTE4_IRQ 37
@@ -97,10 +73,6 @@
#define SH_DMAC_BASE0 0xFC808020
#define SH_DMAC_BASE1 0xFCC08020
#define SH_DMARS_BASE0 0xFC809000
-#define CHCR_TS_LOW_MASK 0x00000018
-#define CHCR_TS_LOW_SHIFT 3
-#define CHCR_TS_HIGH_MASK 0
-#define CHCR_TS_HIGH_SHIFT 0
#endif
#define REQ_HE 0x000000C0
@@ -108,38 +80,4 @@
#define REQ_LE 0x00000040
#define TM_BURST 0x00000020
-/*
- * The SuperH DMAC supports a number of transmit sizes, we list them here,
- * with their respective values as they appear in the CHCR registers.
- *
- * Defaults to a 64-bit transfer size.
- */
-enum {
- XMIT_SZ_8BIT = 0,
- XMIT_SZ_16BIT = 1,
- XMIT_SZ_32BIT = 2,
- XMIT_SZ_64BIT = 7,
- XMIT_SZ_128BIT = 3,
- XMIT_SZ_256BIT = 4,
- XMIT_SZ_128BIT_BLK = 0xb,
- XMIT_SZ_256BIT_BLK = 0xc,
-};
-
-/*
- * The DMA count is defined as the number of bytes to transfer.
- */
-#define TS_SHIFT { \
- [XMIT_SZ_8BIT] = 0, \
- [XMIT_SZ_16BIT] = 1, \
- [XMIT_SZ_32BIT] = 2, \
- [XMIT_SZ_64BIT] = 3, \
- [XMIT_SZ_128BIT] = 4, \
- [XMIT_SZ_256BIT] = 5, \
- [XMIT_SZ_128BIT_BLK] = 4, \
- [XMIT_SZ_256BIT_BLK] = 5, \
-}
-
-#define TS_INDEX2VAL(i) ((((i) & 3) << CHCR_TS_LOW_SHIFT) | \
- ((((i) >> 2) & 3) << CHCR_TS_HIGH_SHIFT))
-
#endif /* __ASM_SH_CPU_SH4_DMA_SH7780_H */
diff --git a/arch/sh/include/cpu-sh4/cpu/dma.h b/arch/sh/include/cpu-sh4/cpu/dma.h
index 114a369705bc..ca747e93c2ed 100644
--- a/arch/sh/include/cpu-sh4/cpu/dma.h
+++ b/arch/sh/include/cpu-sh4/cpu/dma.h
@@ -5,9 +5,8 @@
#ifdef CONFIG_CPU_SH4A
-#define DMAOR_INIT (DMAOR_DME)
-
#include <cpu/dma-sh4a.h>
+
#else /* CONFIG_CPU_SH4A */
/*
* SH7750/SH7751/SH7760
@@ -17,7 +16,6 @@
#define DMTE6_IRQ 46
#define DMAE0_IRQ 38
-#define DMAOR_INIT (0x8000|DMAOR_DME)
#define SH_DMAC_BASE0 0xffa00000
#define SH_DMAC_BASE1 0xffa00070
/* Definitions for the SuperH DMAC */
@@ -27,40 +25,8 @@
#define TS_32 0x00000030
#define TS_64 0x00000000
-#define CHCR_TS_LOW_MASK 0x70
-#define CHCR_TS_LOW_SHIFT 4
-#define CHCR_TS_HIGH_MASK 0
-#define CHCR_TS_HIGH_SHIFT 0
-
#define DMAOR_COD 0x00000008
-/*
- * The SuperH DMAC supports a number of transmit sizes, we list them here,
- * with their respective values as they appear in the CHCR registers.
- *
- * Defaults to a 64-bit transfer size.
- */
-enum {
- XMIT_SZ_8BIT = 1,
- XMIT_SZ_16BIT = 2,
- XMIT_SZ_32BIT = 3,
- XMIT_SZ_64BIT = 0,
- XMIT_SZ_256BIT = 4,
-};
-
-/*
- * The DMA count is defined as the number of bytes to transfer.
- */
-#define TS_SHIFT { \
- [XMIT_SZ_8BIT] = 0, \
- [XMIT_SZ_16BIT] = 1, \
- [XMIT_SZ_32BIT] = 2, \
- [XMIT_SZ_64BIT] = 3, \
- [XMIT_SZ_256BIT] = 5, \
-}
-
-#define TS_INDEX2VAL(i) (((i) & 7) << CHCR_TS_LOW_SHIFT)
-
#endif
#endif /* __ASM_CPU_SH4_DMA_H */
diff --git a/arch/sh/include/mach-migor/mach/migor.h b/arch/sh/include/mach-migor/mach/migor.h
index cee6cb88e020..42fccf93412e 100644
--- a/arch/sh/include/mach-migor/mach/migor.h
+++ b/arch/sh/include/mach-migor/mach/migor.h
@@ -1,6 +1,7 @@
#ifndef __ASM_SH_MIGOR_H
#define __ASM_SH_MIGOR_H
+#define PORT_MSELCRA 0xa4050180
#define PORT_MSELCRB 0xa4050182
#define BSC_CS4BCR 0xfec10010
#define BSC_CS6ABCR 0xfec1001c
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
index ef3f97827808..fd7e3639e845 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
@@ -7,19 +7,167 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
-#include <linux/platform_device.h>
#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/platform_device.h>
#include <linux/serial.h>
#include <linux/serial_sci.h>
-#include <linux/mm.h>
+#include <linux/sh_timer.h>
#include <linux/uio_driver.h>
#include <linux/usb/m66592.h>
-#include <linux/sh_timer.h>
+
#include <asm/clock.h>
+#include <asm/dmaengine.h>
#include <asm/mmzone.h>
-#include <asm/dma-sh.h>
+#include <asm/siu.h>
+
+#include <cpu/dma-register.h>
#include <cpu/sh7722.h>
+static struct sh_dmae_slave_config sh7722_dmae_slaves[] = {
+ {
+ .slave_id = SHDMA_SLAVE_SCIF0_TX,
+ .addr = 0xffe0000c,
+ .chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
+ .mid_rid = 0x21,
+ }, {
+ .slave_id = SHDMA_SLAVE_SCIF0_RX,
+ .addr = 0xffe00014,
+ .chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
+ .mid_rid = 0x22,
+ }, {
+ .slave_id = SHDMA_SLAVE_SCIF1_TX,
+ .addr = 0xffe1000c,
+ .chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
+ .mid_rid = 0x25,
+ }, {
+ .slave_id = SHDMA_SLAVE_SCIF1_RX,
+ .addr = 0xffe10014,
+ .chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
+ .mid_rid = 0x26,
+ }, {
+ .slave_id = SHDMA_SLAVE_SCIF2_TX,
+ .addr = 0xffe2000c,
+ .chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
+ .mid_rid = 0x29,
+ }, {
+ .slave_id = SHDMA_SLAVE_SCIF2_RX,
+ .addr = 0xffe20014,
+ .chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
+ .mid_rid = 0x2a,
+ }, {
+ .slave_id = SHDMA_SLAVE_SIUA_TX,
+ .addr = 0xa454c098,
+ .chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_32BIT),
+ .mid_rid = 0xb1,
+ }, {
+ .slave_id = SHDMA_SLAVE_SIUA_RX,
+ .addr = 0xa454c090,
+ .chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_32BIT),
+ .mid_rid = 0xb2,
+ }, {
+ .slave_id = SHDMA_SLAVE_SIUB_TX,
+ .addr = 0xa454c09c,
+ .chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_32BIT),
+ .mid_rid = 0xb5,
+ }, {
+ .slave_id = SHDMA_SLAVE_SIUB_RX,
+ .addr = 0xa454c094,
+ .chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_32BIT),
+ .mid_rid = 0xb6,
+ },
+};
+
+static struct sh_dmae_channel sh7722_dmae_channels[] = {
+ {
+ .offset = 0,
+ .dmars = 0,
+ .dmars_bit = 0,
+ }, {
+ .offset = 0x10,
+ .dmars = 0,
+ .dmars_bit = 8,
+ }, {
+ .offset = 0x20,
+ .dmars = 4,
+ .dmars_bit = 0,
+ }, {
+ .offset = 0x30,
+ .dmars = 4,
+ .dmars_bit = 8,
+ }, {
+ .offset = 0x50,
+ .dmars = 8,
+ .dmars_bit = 0,
+ }, {
+ .offset = 0x60,
+ .dmars = 8,
+ .dmars_bit = 8,
+ }
+};
+
+static unsigned int ts_shift[] = TS_SHIFT;
+
+static struct sh_dmae_pdata dma_platform_data = {
+ .slave = sh7722_dmae_slaves,
+ .slave_num = ARRAY_SIZE(sh7722_dmae_slaves),
+ .channel = sh7722_dmae_channels,
+ .channel_num = ARRAY_SIZE(sh7722_dmae_channels),
+ .ts_low_shift = CHCR_TS_LOW_SHIFT,
+ .ts_low_mask = CHCR_TS_LOW_MASK,
+ .ts_high_shift = CHCR_TS_HIGH_SHIFT,
+ .ts_high_mask = CHCR_TS_HIGH_MASK,
+ .ts_shift = ts_shift,
+ .ts_shift_num = ARRAY_SIZE(ts_shift),
+ .dmaor_init = DMAOR_INIT,
+};
+
+static struct resource sh7722_dmae_resources[] = {
+ [0] = {
+ /* Channel registers and DMAOR */
+ .start = 0xfe008020,
+ .end = 0xfe00808f,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ /* DMARSx */
+ .start = 0xfe009000,
+ .end = 0xfe00900b,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ /* DMA error IRQ */
+ .start = 78,
+ .end = 78,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ /* IRQ for channels 0-3 */
+ .start = 48,
+ .end = 51,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ /* IRQ for channels 4-5 */
+ .start = 76,
+ .end = 77,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+struct platform_device dma_device = {
+ .name = "sh-dma-engine",
+ .id = -1,
+ .resource = sh7722_dmae_resources,
+ .num_resources = ARRAY_SIZE(sh7722_dmae_resources),
+ .dev = {
+ .platform_data = &dma_platform_data,
+ },
+ .archdata = {
+ .hwblk_id = HWBLK_DMAC,
+ },
+};
+
/* Serial */
static struct plat_sci_port scif0_platform_data = {
.mapbase = 0xffe00000,
@@ -388,15 +536,36 @@ static struct platform_device tmu2_device = {
},
};
-static struct sh_dmae_pdata dma_platform_data = {
- .mode = 0,
+static struct siu_platform siu_platform_data = {
+ .dma_dev = &dma_device.dev,
+ .dma_slave_tx_a = SHDMA_SLAVE_SIUA_TX,
+ .dma_slave_rx_a = SHDMA_SLAVE_SIUA_RX,
+ .dma_slave_tx_b = SHDMA_SLAVE_SIUB_TX,
+ .dma_slave_rx_b = SHDMA_SLAVE_SIUB_RX,
};
-static struct platform_device dma_device = {
- .name = "sh-dma-engine",
+static struct resource siu_resources[] = {
+ [0] = {
+ .start = 0xa4540000,
+ .end = 0xa454c10f,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = 108,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device siu_device = {
+ .name = "sh_siu",
.id = -1,
- .dev = {
- .platform_data = &dma_platform_data,
+ .dev = {
+ .platform_data = &siu_platform_data,
+ },
+ .resource = siu_resources,
+ .num_resources = ARRAY_SIZE(siu_resources),
+ .archdata = {
+ .hwblk_id = HWBLK_SIU,
},
};
@@ -414,6 +583,7 @@ static struct platform_device *sh7722_devices[] __initdata = {
&vpu_device,
&veu_device,
&jpu_device,
+ &siu_device,
&dma_device,
};
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
index 31e3451f7e3d..e7fa2a92fc1f 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
@@ -21,22 +21,189 @@
#include <linux/sh_timer.h>
#include <linux/io.h>
#include <linux/notifier.h>
+
#include <asm/suspend.h>
#include <asm/clock.h>
-#include <asm/dma-sh.h>
+#include <asm/dmaengine.h>
#include <asm/mmzone.h>
+
+#include <cpu/dma-register.h>
#include <cpu/sh7724.h>
/* DMA */
-static struct sh_dmae_pdata dma_platform_data = {
- .mode = SHDMA_DMAOR1,
+static struct sh_dmae_channel sh7724_dmae0_channels[] = {
+ {
+ .offset = 0,
+ .dmars = 0,
+ .dmars_bit = 0,
+ }, {
+ .offset = 0x10,
+ .dmars = 0,
+ .dmars_bit = 8,
+ }, {
+ .offset = 0x20,
+ .dmars = 4,
+ .dmars_bit = 0,
+ }, {
+ .offset = 0x30,
+ .dmars = 4,
+ .dmars_bit = 8,
+ }, {
+ .offset = 0x50,
+ .dmars = 8,
+ .dmars_bit = 0,
+ }, {
+ .offset = 0x60,
+ .dmars = 8,
+ .dmars_bit = 8,
+ }
+};
+
+static struct sh_dmae_channel sh7724_dmae1_channels[] = {
+ {
+ .offset = 0,
+ .dmars = 0,
+ .dmars_bit = 0,
+ }, {
+ .offset = 0x10,
+ .dmars = 0,
+ .dmars_bit = 8,
+ }, {
+ .offset = 0x20,
+ .dmars = 4,
+ .dmars_bit = 0,
+ }, {
+ .offset = 0x30,
+ .dmars = 4,
+ .dmars_bit = 8,
+ }, {
+ .offset = 0x50,
+ .dmars = 8,
+ .dmars_bit = 0,
+ }, {
+ .offset = 0x60,
+ .dmars = 8,
+ .dmars_bit = 8,
+ }
+};
+
+static unsigned int ts_shift[] = TS_SHIFT;
+
+static struct sh_dmae_pdata dma0_platform_data = {
+ .channel = sh7724_dmae0_channels,
+ .channel_num = ARRAY_SIZE(sh7724_dmae0_channels),
+ .ts_low_shift = CHCR_TS_LOW_SHIFT,
+ .ts_low_mask = CHCR_TS_LOW_MASK,
+ .ts_high_shift = CHCR_TS_HIGH_SHIFT,
+ .ts_high_mask = CHCR_TS_HIGH_MASK,
+ .ts_shift = ts_shift,
+ .ts_shift_num = ARRAY_SIZE(ts_shift),
+ .dmaor_init = DMAOR_INIT,
+};
+
+static struct sh_dmae_pdata dma1_platform_data = {
+ .channel = sh7724_dmae1_channels,
+ .channel_num = ARRAY_SIZE(sh7724_dmae1_channels),
+ .ts_low_shift = CHCR_TS_LOW_SHIFT,
+ .ts_low_mask = CHCR_TS_LOW_MASK,
+ .ts_high_shift = CHCR_TS_HIGH_SHIFT,
+ .ts_high_mask = CHCR_TS_HIGH_MASK,
+ .ts_shift = ts_shift,
+ .ts_shift_num = ARRAY_SIZE(ts_shift),
+ .dmaor_init = DMAOR_INIT,
+};
+
+/* Resource order important! */
+static struct resource sh7724_dmae0_resources[] = {
+ {
+ /* Channel registers and DMAOR */
+ .start = 0xfe008020,
+ .end = 0xfe00808f,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ /* DMARSx */
+ .start = 0xfe009000,
+ .end = 0xfe00900b,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ /* DMA error IRQ */
+ .start = 78,
+ .end = 78,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ /* IRQ for channels 0-3 */
+ .start = 48,
+ .end = 51,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ /* IRQ for channels 4-5 */
+ .start = 76,
+ .end = 77,
+ .flags = IORESOURCE_IRQ,
+ },
};
-static struct platform_device dma_device = {
- .name = "sh-dma-engine",
- .id = -1,
- .dev = {
- .platform_data = &dma_platform_data,
+/* Resource order important! */
+static struct resource sh7724_dmae1_resources[] = {
+ {
+ /* Channel registers and DMAOR */
+ .start = 0xfdc08020,
+ .end = 0xfdc0808f,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ /* DMARSx */
+ .start = 0xfdc09000,
+ .end = 0xfdc0900b,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ /* DMA error IRQ */
+ .start = 74,
+ .end = 74,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ /* IRQ for channels 0-3 */
+ .start = 40,
+ .end = 43,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ /* IRQ for channels 4-5 */
+ .start = 72,
+ .end = 73,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device dma0_device = {
+ .name = "sh-dma-engine",
+ .id = 0,
+ .resource = sh7724_dmae0_resources,
+ .num_resources = ARRAY_SIZE(sh7724_dmae0_resources),
+ .dev = {
+ .platform_data = &dma0_platform_data,
+ },
+ .archdata = {
+ .hwblk_id = HWBLK_DMAC0,
+ },
+};
+
+static struct platform_device dma1_device = {
+ .name = "sh-dma-engine",
+ .id = 1,
+ .resource = sh7724_dmae1_resources,
+ .num_resources = ARRAY_SIZE(sh7724_dmae1_resources),
+ .dev = {
+ .platform_data = &dma1_platform_data,
+ },
+ .archdata = {
+ .hwblk_id = HWBLK_DMAC1,
},
};
@@ -663,7 +830,8 @@ static struct platform_device *sh7724_devices[] __initdata = {
&tmu3_device,
&tmu4_device,
&tmu5_device,
- &dma_device,
+ &dma0_device,
+ &dma1_device,
&rtc_device,
&iic0_device,
&iic1_device,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
index f8f21618d785..02e792c90de6 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
@@ -13,7 +13,10 @@
#include <linux/io.h>
#include <linux/serial_sci.h>
#include <linux/sh_timer.h>
-#include <asm/dma-sh.h>
+
+#include <asm/dmaengine.h>
+
+#include <cpu/dma-register.h>
static struct plat_sci_port scif0_platform_data = {
.mapbase = 0xffe00000,
@@ -247,15 +250,131 @@ static struct platform_device rtc_device = {
.resource = rtc_resources,
};
-static struct sh_dmae_pdata dma_platform_data = {
- .mode = (SHDMA_MIX_IRQ | SHDMA_DMAOR1),
+/* DMA */
+static struct sh_dmae_channel sh7780_dmae0_channels[] = {
+ {
+ .offset = 0,
+ .dmars = 0,
+ .dmars_bit = 0,
+ }, {
+ .offset = 0x10,
+ .dmars = 0,
+ .dmars_bit = 8,
+ }, {
+ .offset = 0x20,
+ .dmars = 4,
+ .dmars_bit = 0,
+ }, {
+ .offset = 0x30,
+ .dmars = 4,
+ .dmars_bit = 8,
+ }, {
+ .offset = 0x50,
+ .dmars = 8,
+ .dmars_bit = 0,
+ }, {
+ .offset = 0x60,
+ .dmars = 8,
+ .dmars_bit = 8,
+ }
+};
+
+static struct sh_dmae_channel sh7780_dmae1_channels[] = {
+ {
+ .offset = 0,
+ }, {
+ .offset = 0x10,
+ }, {
+ .offset = 0x20,
+ }, {
+ .offset = 0x30,
+ }, {
+ .offset = 0x50,
+ }, {
+ .offset = 0x60,
+ }
+};
+
+static unsigned int ts_shift[] = TS_SHIFT;
+
+static struct sh_dmae_pdata dma0_platform_data = {
+ .channel = sh7780_dmae0_channels,
+ .channel_num = ARRAY_SIZE(sh7780_dmae0_channels),
+ .ts_low_shift = CHCR_TS_LOW_SHIFT,
+ .ts_low_mask = CHCR_TS_LOW_MASK,
+ .ts_high_shift = CHCR_TS_HIGH_SHIFT,
+ .ts_high_mask = CHCR_TS_HIGH_MASK,
+ .ts_shift = ts_shift,
+ .ts_shift_num = ARRAY_SIZE(ts_shift),
+ .dmaor_init = DMAOR_INIT,
+};
+
+static struct sh_dmae_pdata dma1_platform_data = {
+ .channel = sh7780_dmae1_channels,
+ .channel_num = ARRAY_SIZE(sh7780_dmae1_channels),
+ .ts_low_shift = CHCR_TS_LOW_SHIFT,
+ .ts_low_mask = CHCR_TS_LOW_MASK,
+ .ts_high_shift = CHCR_TS_HIGH_SHIFT,
+ .ts_high_mask = CHCR_TS_HIGH_MASK,
+ .ts_shift = ts_shift,
+ .ts_shift_num = ARRAY_SIZE(ts_shift),
+ .dmaor_init = DMAOR_INIT,
};
-static struct platform_device dma_device = {
+static struct resource sh7780_dmae0_resources[] = {
+ [0] = {
+ /* Channel registers and DMAOR */
+ .start = 0xfc808020,
+ .end = 0xfc80808f,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ /* DMARSx */
+ .start = 0xfc809000,
+ .end = 0xfc80900b,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ /* Real DMA error IRQ is 38, and channel IRQs are 34-37, 44-45 */
+ .start = 34,
+ .end = 34,
+ .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_SHAREABLE,
+ },
+};
+
+static struct resource sh7780_dmae1_resources[] = {
+ [0] = {
+ /* Channel registers and DMAOR */
+ .start = 0xfc818020,
+ .end = 0xfc81808f,
+ .flags = IORESOURCE_MEM,
+ },
+ /* DMAC1 has no DMARS */
+ {
+ /* Real DMA error IRQ is 38, and channel IRQs are 46-47, 92-95 */
+ .start = 46,
+ .end = 46,
+ .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_SHAREABLE,
+ },
+};
+
+static struct platform_device dma0_device = {
.name = "sh-dma-engine",
- .id = -1,
+ .id = 0,
+ .resource = sh7780_dmae0_resources,
+ .num_resources = ARRAY_SIZE(sh7780_dmae0_resources),
.dev = {
- .platform_data = &dma_platform_data,
+ .platform_data = &dma0_platform_data,
+ },
+};
+
+static struct platform_device dma1_device = {
+ .name = "sh-dma-engine",
+ .id = 1,
+ .resource = sh7780_dmae1_resources,
+ .num_resources = ARRAY_SIZE(sh7780_dmae1_resources),
+ .dev = {
+ .platform_data = &dma1_platform_data,
},
};
@@ -269,7 +388,8 @@ static struct platform_device *sh7780_devices[] __initdata = {
&tmu4_device,
&tmu5_device,
&rtc_device,
- &dma_device,
+ &dma0_device,
+ &dma1_device,
};
static int __init sh7780_devices_setup(void)
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
index 23448d8c6711..1fcd88b1671e 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
@@ -14,9 +14,12 @@
#include <linux/io.h>
#include <linux/mm.h>
#include <linux/sh_timer.h>
-#include <asm/dma-sh.h>
+
+#include <asm/dmaengine.h>
#include <asm/mmzone.h>
+#include <cpu/dma-register.h>
+
static struct plat_sci_port scif0_platform_data = {
.mapbase = 0xffea0000,
.flags = UPF_BOOT_AUTOCONF,
@@ -295,15 +298,131 @@ static struct platform_device tmu5_device = {
.num_resources = ARRAY_SIZE(tmu5_resources),
};
-static struct sh_dmae_pdata dma_platform_data = {
- .mode = (SHDMA_MIX_IRQ | SHDMA_DMAOR1),
+/* DMA */
+static struct sh_dmae_channel sh7785_dmae0_channels[] = {
+ {
+ .offset = 0,
+ .dmars = 0,
+ .dmars_bit = 0,
+ }, {
+ .offset = 0x10,
+ .dmars = 0,
+ .dmars_bit = 8,
+ }, {
+ .offset = 0x20,
+ .dmars = 4,
+ .dmars_bit = 0,
+ }, {
+ .offset = 0x30,
+ .dmars = 4,
+ .dmars_bit = 8,
+ }, {
+ .offset = 0x50,
+ .dmars = 8,
+ .dmars_bit = 0,
+ }, {
+ .offset = 0x60,
+ .dmars = 8,
+ .dmars_bit = 8,
+ }
+};
+
+static struct sh_dmae_channel sh7785_dmae1_channels[] = {
+ {
+ .offset = 0,
+ }, {
+ .offset = 0x10,
+ }, {
+ .offset = 0x20,
+ }, {
+ .offset = 0x30,
+ }, {
+ .offset = 0x50,
+ }, {
+ .offset = 0x60,
+ }
+};
+
+static unsigned int ts_shift[] = TS_SHIFT;
+
+static struct sh_dmae_pdata dma0_platform_data = {
+ .channel = sh7785_dmae0_channels,
+ .channel_num = ARRAY_SIZE(sh7785_dmae0_channels),
+ .ts_low_shift = CHCR_TS_LOW_SHIFT,
+ .ts_low_mask = CHCR_TS_LOW_MASK,
+ .ts_high_shift = CHCR_TS_HIGH_SHIFT,
+ .ts_high_mask = CHCR_TS_HIGH_MASK,
+ .ts_shift = ts_shift,
+ .ts_shift_num = ARRAY_SIZE(ts_shift),
+ .dmaor_init = DMAOR_INIT,
+};
+
+static struct sh_dmae_pdata dma1_platform_data = {
+ .channel = sh7785_dmae1_channels,
+ .channel_num = ARRAY_SIZE(sh7785_dmae1_channels),
+ .ts_low_shift = CHCR_TS_LOW_SHIFT,
+ .ts_low_mask = CHCR_TS_LOW_MASK,
+ .ts_high_shift = CHCR_TS_HIGH_SHIFT,
+ .ts_high_mask = CHCR_TS_HIGH_MASK,
+ .ts_shift = ts_shift,
+ .ts_shift_num = ARRAY_SIZE(ts_shift),
+ .dmaor_init = DMAOR_INIT,
};
-static struct platform_device dma_device = {
+static struct resource sh7785_dmae0_resources[] = {
+ [0] = {
+ /* Channel registers and DMAOR */
+ .start = 0xfc808020,
+ .end = 0xfc80808f,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ /* DMARSx */
+ .start = 0xfc809000,
+ .end = 0xfc80900b,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ /* Real DMA error IRQ is 39, and channel IRQs are 33-38 */
+ .start = 33,
+ .end = 33,
+ .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_SHAREABLE,
+ },
+};
+
+static struct resource sh7785_dmae1_resources[] = {
+ [0] = {
+ /* Channel registers and DMAOR */
+ .start = 0xfcc08020,
+ .end = 0xfcc0808f,
+ .flags = IORESOURCE_MEM,
+ },
+ /* DMAC1 has no DMARS */
+ {
+ /* Real DMA error IRQ is 58, and channel IRQs are 52-57 */
+ .start = 52,
+ .end = 52,
+ .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_SHAREABLE,
+ },
+};
+
+static struct platform_device dma0_device = {
.name = "sh-dma-engine",
- .id = -1,
+ .id = 0,
+ .resource = sh7785_dmae0_resources,
+ .num_resources = ARRAY_SIZE(sh7785_dmae0_resources),
.dev = {
- .platform_data = &dma_platform_data,
+ .platform_data = &dma0_platform_data,
+ },
+};
+
+static struct platform_device dma1_device = {
+ .name = "sh-dma-engine",
+ .id = 1,
+ .resource = sh7785_dmae1_resources,
+ .num_resources = ARRAY_SIZE(sh7785_dmae1_resources),
+ .dev = {
+ .platform_data = &dma1_platform_data,
},
};
@@ -320,7 +439,8 @@ static struct platform_device *sh7785_devices[] __initdata = {
&tmu3_device,
&tmu4_device,
&tmu5_device,
- &dma_device,
+ &dma0_device,
+ &dma1_device,
};
static int __init sh7785_devices_setup(void)
diff --git a/arch/sh/kernel/hw_breakpoint.c b/arch/sh/kernel/hw_breakpoint.c
index e2f1753d275c..675eea7785d9 100644
--- a/arch/sh/kernel/hw_breakpoint.c
+++ b/arch/sh/kernel/hw_breakpoint.c
@@ -143,26 +143,6 @@ static int arch_check_va_in_kernelspace(unsigned long va, u8 hbp_len)
return (va >= TASK_SIZE) && ((va + len - 1) >= TASK_SIZE);
}
-/*
- * Store a breakpoint's encoded address, length, and type.
- */
-static int arch_store_info(struct perf_event *bp)
-{
- struct arch_hw_breakpoint *info = counter_arch_bp(bp);
-
- /*
- * User-space requests will always have the address field populated
- * For kernel-addresses, either the address or symbol name can be
- * specified.
- */
- if (info->name)
- info->address = (unsigned long)kallsyms_lookup_name(info->name);
- if (info->address)
- return 0;
-
- return -EINVAL;
-}
-
int arch_bp_generic_fields(int sh_len, int sh_type,
int *gen_len, int *gen_type)
{
@@ -276,10 +256,12 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp,
return ret;
}
- ret = arch_store_info(bp);
-
- if (ret < 0)
- return ret;
+ /*
+ * For kernel-addresses, either the address or symbol name can be
+ * specified.
+ */
+ if (info->name)
+ info->address = (unsigned long)kallsyms_lookup_name(info->name);
/*
* Check that the low-order bits of the address are appropriate
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 3459e70eed72..8870d6ba64bf 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -443,7 +443,7 @@ void __init setup_arch(char **cmdline_p)
nodes_clear(node_online_map);
- /* Setup bootmem with available RAM */
+ pmb_init();
lmb_init();
setup_memory();
sparse_init();
@@ -452,7 +452,6 @@ void __init setup_arch(char **cmdline_p)
conswitchp = &dummy_con;
#endif
paging_init();
- pmb_init();
ioremap_fixed_init();
diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c
index 953fa1613312..8a0072de2bcc 100644
--- a/arch/sh/kernel/time.c
+++ b/arch/sh/kernel/time.c
@@ -39,12 +39,12 @@ static int null_rtc_set_time(const time_t secs)
void (*rtc_sh_get_time)(struct timespec *) = null_rtc_get_time;
int (*rtc_sh_set_time)(const time_t) = null_rtc_set_time;
-#ifdef CONFIG_GENERIC_CMOS_UPDATE
void read_persistent_clock(struct timespec *ts)
{
rtc_sh_get_time(ts);
}
+#ifdef CONFIG_GENERIC_CMOS_UPDATE
int update_persistent_clock(struct timespec now)
{
return rtc_sh_set_time(now.tv_sec);
@@ -113,9 +113,5 @@ void __init time_init(void)
hwblk_init();
clk_init();
- rtc_sh_get_time(&xtime);
- set_normalized_timespec(&wall_to_monotonic,
- -xtime.tv_sec, -xtime.tv_nsec);
-
late_time_init = sh_late_time_init;
}
diff --git a/arch/sh/lib/libgcc.h b/arch/sh/lib/libgcc.h
index 3f19d1c5d942..05909d58e2fe 100644
--- a/arch/sh/lib/libgcc.h
+++ b/arch/sh/lib/libgcc.h
@@ -17,8 +17,7 @@ struct DWstruct {
#error I feel sick.
#endif
-typedef union
-{
+typedef union {
struct DWstruct s;
long long ll;
} DWunion;
diff --git a/arch/sh/mm/ioremap.c b/arch/sh/mm/ioremap.c
index c68d2d7d00a9..1ab2385ecefe 100644
--- a/arch/sh/mm/ioremap.c
+++ b/arch/sh/mm/ioremap.c
@@ -34,11 +34,12 @@
* caller shouldn't need to know that small detail.
*/
void __iomem * __init_refok
-__ioremap_caller(unsigned long phys_addr, unsigned long size,
+__ioremap_caller(phys_addr_t phys_addr, unsigned long size,
pgprot_t pgprot, void *caller)
{
struct vm_struct *area;
unsigned long offset, last_addr, addr, orig_addr;
+ void __iomem *mapped;
/* Don't allow wraparound or zero size */
last_addr = phys_addr + size - 1;
@@ -46,6 +47,20 @@ __ioremap_caller(unsigned long phys_addr, unsigned long size,
return NULL;
/*
+ * If we can't yet use the regular approach, go the fixmap route.
+ */
+ if (!mem_init_done)
+ return ioremap_fixed(phys_addr, size, pgprot);
+
+ /*
+ * First try to remap through the PMB.
+ * PMB entries are all pre-faulted.
+ */
+ mapped = pmb_remap_caller(phys_addr, size, pgprot, caller);
+ if (mapped && !IS_ERR(mapped))
+ return mapped;
+
+ /*
* Mappings have to be page-aligned
*/
offset = phys_addr & ~PAGE_MASK;
@@ -53,12 +68,6 @@ __ioremap_caller(unsigned long phys_addr, unsigned long size,
size = PAGE_ALIGN(last_addr+1) - phys_addr;
/*
- * If we can't yet use the regular approach, go the fixmap route.
- */
- if (!mem_init_done)
- return ioremap_fixed(phys_addr, offset, size, pgprot);
-
- /*
* Ok, go for it..
*/
area = get_vm_area_caller(size, VM_IOREMAP, caller);
@@ -67,33 +76,10 @@ __ioremap_caller(unsigned long phys_addr, unsigned long size,
area->phys_addr = phys_addr;
orig_addr = addr = (unsigned long)area->addr;
-#ifdef CONFIG_PMB
- /*
- * First try to remap through the PMB once a valid VMA has been
- * established. Smaller allocations (or the rest of the size
- * remaining after a PMB mapping due to the size not being
- * perfectly aligned on a PMB size boundary) are then mapped
- * through the UTLB using conventional page tables.
- *
- * PMB entries are all pre-faulted.
- */
- if (unlikely(phys_addr >= P1SEG)) {
- unsigned long mapped;
-
- mapped = pmb_remap(addr, phys_addr, size, pgprot);
- if (likely(mapped)) {
- addr += mapped;
- phys_addr += mapped;
- size -= mapped;
- }
+ if (ioremap_page_range(addr, addr + size, phys_addr, pgprot)) {
+ vunmap((void *)orig_addr);
+ return NULL;
}
-#endif
-
- if (likely(size))
- if (ioremap_page_range(addr, addr + size, phys_addr, pgprot)) {
- vunmap((void *)orig_addr);
- return NULL;
- }
return (void __iomem *)(offset + (char *)orig_addr);
}
@@ -133,23 +119,11 @@ void __iounmap(void __iomem *addr)
if (iounmap_fixed(addr) == 0)
return;
-#ifdef CONFIG_PMB
/*
- * Purge any PMB entries that may have been established for this
- * mapping, then proceed with conventional VMA teardown.
- *
- * XXX: Note that due to the way that remove_vm_area() does
- * matching of the resultant VMA, we aren't able to fast-forward
- * the address past the PMB space until the end of the VMA where
- * the page tables reside. As such, unmap_vm_area() will be
- * forced to linearly scan over the area until it finds the page
- * tables where PTEs that need to be unmapped actually reside,
- * which is far from optimal. Perhaps we need to use a separate
- * VMA for the PMB mappings?
- * -- PFM.
+ * If the PMB handled it, there's nothing else to do.
*/
- pmb_unmap(vaddr);
-#endif
+ if (pmb_unmap(addr) == 0)
+ return;
p = remove_vm_area((void *)(vaddr & PAGE_MASK));
if (!p) {
diff --git a/arch/sh/mm/ioremap_fixed.c b/arch/sh/mm/ioremap_fixed.c
index 0b78b1e20ef1..7f682e5dafcf 100644
--- a/arch/sh/mm/ioremap_fixed.c
+++ b/arch/sh/mm/ioremap_fixed.c
@@ -45,14 +45,21 @@ void __init ioremap_fixed_init(void)
}
void __init __iomem *
-ioremap_fixed(resource_size_t phys_addr, unsigned long offset,
- unsigned long size, pgprot_t prot)
+ioremap_fixed(phys_addr_t phys_addr, unsigned long size, pgprot_t prot)
{
enum fixed_addresses idx0, idx;
struct ioremap_map *map;
unsigned int nrpages;
+ unsigned long offset;
int i, slot;
+ /*
+ * Mappings have to be page-aligned
+ */
+ offset = phys_addr & ~PAGE_MASK;
+ phys_addr &= PAGE_MASK;
+ size = PAGE_ALIGN(phys_addr + size) - phys_addr;
+
slot = -1;
for (i = 0; i < FIX_N_IOREMAPS; i++) {
map = &ioremap_maps[i];
diff --git a/arch/sh/mm/numa.c b/arch/sh/mm/numa.c
index 422e92721878..961b34085e3b 100644
--- a/arch/sh/mm/numa.c
+++ b/arch/sh/mm/numa.c
@@ -74,6 +74,9 @@ void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end)
start_pfn = start >> PAGE_SHIFT;
end_pfn = end >> PAGE_SHIFT;
+ pmb_bolt_mapping((unsigned long)__va(start), start, end - start,
+ PAGE_KERNEL);
+
lmb_add(start, end - start);
__add_active_range(nid, start_pfn, end_pfn);
diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c
index 198bcff5e96f..a4662e2782c3 100644
--- a/arch/sh/mm/pmb.c
+++ b/arch/sh/mm/pmb.c
@@ -23,7 +23,8 @@
#include <linux/err.h>
#include <linux/io.h>
#include <linux/spinlock.h>
-#include <linux/rwlock.h>
+#include <linux/vmalloc.h>
+#include <asm/cacheflush.h>
#include <asm/sizes.h>
#include <asm/system.h>
#include <asm/uaccess.h>
@@ -52,12 +53,24 @@ struct pmb_entry {
struct pmb_entry *link;
};
+static struct {
+ unsigned long size;
+ int flag;
+} pmb_sizes[] = {
+ { .size = SZ_512M, .flag = PMB_SZ_512M, },
+ { .size = SZ_128M, .flag = PMB_SZ_128M, },
+ { .size = SZ_64M, .flag = PMB_SZ_64M, },
+ { .size = SZ_16M, .flag = PMB_SZ_16M, },
+};
+
static void pmb_unmap_entry(struct pmb_entry *, int depth);
static DEFINE_RWLOCK(pmb_rwlock);
static struct pmb_entry pmb_entry_list[NR_PMB_ENTRIES];
static DECLARE_BITMAP(pmb_map, NR_PMB_ENTRIES);
+static unsigned int pmb_iomapping_enabled;
+
static __always_inline unsigned long mk_pmb_entry(unsigned int entry)
{
return (entry & PMB_E_MASK) << PMB_E_SHIFT;
@@ -73,6 +86,142 @@ static __always_inline unsigned long mk_pmb_data(unsigned int entry)
return mk_pmb_entry(entry) | PMB_DATA;
}
+static __always_inline unsigned int pmb_ppn_in_range(unsigned long ppn)
+{
+ return ppn >= __pa(memory_start) && ppn < __pa(memory_end);
+}
+
+/*
+ * Ensure that the PMB entries match our cache configuration.
+ *
+ * When we are in 32-bit address extended mode, CCR.CB becomes
+ * invalid, so care must be taken to manually adjust cacheable
+ * translations.
+ */
+static __always_inline unsigned long pmb_cache_flags(void)
+{
+ unsigned long flags = 0;
+
+#if defined(CONFIG_CACHE_OFF)
+ flags |= PMB_WT | PMB_UB;
+#elif defined(CONFIG_CACHE_WRITETHROUGH)
+ flags |= PMB_C | PMB_WT | PMB_UB;
+#elif defined(CONFIG_CACHE_WRITEBACK)
+ flags |= PMB_C;
+#endif
+
+ return flags;
+}
+
+/*
+ * Convert typical pgprot value to the PMB equivalent
+ */
+static inline unsigned long pgprot_to_pmb_flags(pgprot_t prot)
+{
+ unsigned long pmb_flags = 0;
+ u64 flags = pgprot_val(prot);
+
+ if (flags & _PAGE_CACHABLE)
+ pmb_flags |= PMB_C;
+ if (flags & _PAGE_WT)
+ pmb_flags |= PMB_WT | PMB_UB;
+
+ return pmb_flags;
+}
+
+static inline bool pmb_can_merge(struct pmb_entry *a, struct pmb_entry *b)
+{
+ return (b->vpn == (a->vpn + a->size)) &&
+ (b->ppn == (a->ppn + a->size)) &&
+ (b->flags == a->flags);
+}
+
+static bool pmb_mapping_exists(unsigned long vaddr, phys_addr_t phys,
+ unsigned long size)
+{
+ int i;
+
+ read_lock(&pmb_rwlock);
+
+ for (i = 0; i < ARRAY_SIZE(pmb_entry_list); i++) {
+ struct pmb_entry *pmbe, *iter;
+ unsigned long span;
+
+ if (!test_bit(i, pmb_map))
+ continue;
+
+ pmbe = &pmb_entry_list[i];
+
+ /*
+ * See if VPN and PPN are bounded by an existing mapping.
+ */
+ if ((vaddr < pmbe->vpn) || (vaddr >= (pmbe->vpn + pmbe->size)))
+ continue;
+ if ((phys < pmbe->ppn) || (phys >= (pmbe->ppn + pmbe->size)))
+ continue;
+
+ /*
+ * Now see if we're in range of a simple mapping.
+ */
+ if (size <= pmbe->size) {
+ read_unlock(&pmb_rwlock);
+ return true;
+ }
+
+ span = pmbe->size;
+
+ /*
+ * Finally for sizes that involve compound mappings, walk
+ * the chain.
+ */
+ for (iter = pmbe->link; iter; iter = iter->link)
+ span += iter->size;
+
+ /*
+ * Nothing else to do if the range requirements are met.
+ */
+ if (size <= span) {
+ read_unlock(&pmb_rwlock);
+ return true;
+ }
+ }
+
+ read_unlock(&pmb_rwlock);
+ return false;
+}
+
+static bool pmb_size_valid(unsigned long size)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(pmb_sizes); i++)
+ if (pmb_sizes[i].size == size)
+ return true;
+
+ return false;
+}
+
+static inline bool pmb_addr_valid(unsigned long addr, unsigned long size)
+{
+ return (addr >= P1SEG && (addr + size - 1) < P3SEG);
+}
+
+static inline bool pmb_prot_valid(pgprot_t prot)
+{
+ return (pgprot_val(prot) & _PAGE_USER) == 0;
+}
+
+static int pmb_size_to_flags(unsigned long size)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(pmb_sizes); i++)
+ if (pmb_sizes[i].size == size)
+ return pmb_sizes[i].flag;
+
+ return 0;
+}
+
static int pmb_alloc_entry(void)
{
int pos;
@@ -140,33 +289,22 @@ static void pmb_free(struct pmb_entry *pmbe)
}
/*
- * Ensure that the PMB entries match our cache configuration.
- *
- * When we are in 32-bit address extended mode, CCR.CB becomes
- * invalid, so care must be taken to manually adjust cacheable
- * translations.
+ * Must be run uncached.
*/
-static __always_inline unsigned long pmb_cache_flags(void)
+static void __set_pmb_entry(struct pmb_entry *pmbe)
{
- unsigned long flags = 0;
+ unsigned long addr, data;
-#if defined(CONFIG_CACHE_WRITETHROUGH)
- flags |= PMB_C | PMB_WT | PMB_UB;
-#elif defined(CONFIG_CACHE_WRITEBACK)
- flags |= PMB_C;
-#endif
+ addr = mk_pmb_addr(pmbe->entry);
+ data = mk_pmb_data(pmbe->entry);
- return flags;
-}
+ jump_to_uncached();
-/*
- * Must be run uncached.
- */
-static void __set_pmb_entry(struct pmb_entry *pmbe)
-{
- writel_uncached(pmbe->vpn | PMB_V, mk_pmb_addr(pmbe->entry));
- writel_uncached(pmbe->ppn | pmbe->flags | PMB_V,
- mk_pmb_data(pmbe->entry));
+ /* Set V-bit */
+ __raw_writel(pmbe->vpn | PMB_V, addr);
+ __raw_writel(pmbe->ppn | pmbe->flags | PMB_V, data);
+
+ back_to_cached();
}
static void __clear_pmb_entry(struct pmb_entry *pmbe)
@@ -194,144 +332,155 @@ static void set_pmb_entry(struct pmb_entry *pmbe)
spin_unlock_irqrestore(&pmbe->lock, flags);
}
-static struct {
- unsigned long size;
- int flag;
-} pmb_sizes[] = {
- { .size = SZ_512M, .flag = PMB_SZ_512M, },
- { .size = SZ_128M, .flag = PMB_SZ_128M, },
- { .size = SZ_64M, .flag = PMB_SZ_64M, },
- { .size = SZ_16M, .flag = PMB_SZ_16M, },
-};
-
-long pmb_remap(unsigned long vaddr, unsigned long phys,
- unsigned long size, pgprot_t prot)
+int pmb_bolt_mapping(unsigned long vaddr, phys_addr_t phys,
+ unsigned long size, pgprot_t prot)
{
struct pmb_entry *pmbp, *pmbe;
- unsigned long wanted;
- int pmb_flags, i;
- long err;
- u64 flags;
+ unsigned long orig_addr, orig_size;
+ unsigned long flags, pmb_flags;
+ int i, mapped;
- flags = pgprot_val(prot);
+ if (!pmb_addr_valid(vaddr, size))
+ return -EFAULT;
+ if (pmb_mapping_exists(vaddr, phys, size))
+ return 0;
- pmb_flags = PMB_WT | PMB_UB;
-
- /* Convert typical pgprot value to the PMB equivalent */
- if (flags & _PAGE_CACHABLE) {
- pmb_flags |= PMB_C;
+ orig_addr = vaddr;
+ orig_size = size;
- if ((flags & _PAGE_WT) == 0)
- pmb_flags &= ~(PMB_WT | PMB_UB);
- }
+ flush_tlb_kernel_range(vaddr, vaddr + size);
+ pmb_flags = pgprot_to_pmb_flags(prot);
pmbp = NULL;
- wanted = size;
-again:
- for (i = 0; i < ARRAY_SIZE(pmb_sizes); i++) {
- unsigned long flags;
+ do {
+ for (i = mapped = 0; i < ARRAY_SIZE(pmb_sizes); i++) {
+ if (size < pmb_sizes[i].size)
+ continue;
+
+ pmbe = pmb_alloc(vaddr, phys, pmb_flags |
+ pmb_sizes[i].flag, PMB_NO_ENTRY);
+ if (IS_ERR(pmbe)) {
+ pmb_unmap_entry(pmbp, mapped);
+ return PTR_ERR(pmbe);
+ }
- if (size < pmb_sizes[i].size)
- continue;
+ spin_lock_irqsave(&pmbe->lock, flags);
- pmbe = pmb_alloc(vaddr, phys, pmb_flags | pmb_sizes[i].flag,
- PMB_NO_ENTRY);
- if (IS_ERR(pmbe)) {
- err = PTR_ERR(pmbe);
- goto out;
- }
+ pmbe->size = pmb_sizes[i].size;
- spin_lock_irqsave(&pmbe->lock, flags);
+ __set_pmb_entry(pmbe);
- __set_pmb_entry(pmbe);
+ phys += pmbe->size;
+ vaddr += pmbe->size;
+ size -= pmbe->size;
- phys += pmb_sizes[i].size;
- vaddr += pmb_sizes[i].size;
- size -= pmb_sizes[i].size;
+ /*
+ * Link adjacent entries that span multiple PMB
+ * entries for easier tear-down.
+ */
+ if (likely(pmbp)) {
+ spin_lock(&pmbp->lock);
+ pmbp->link = pmbe;
+ spin_unlock(&pmbp->lock);
+ }
- pmbe->size = pmb_sizes[i].size;
+ pmbp = pmbe;
- /*
- * Link adjacent entries that span multiple PMB entries
- * for easier tear-down.
- */
- if (likely(pmbp)) {
- spin_lock(&pmbp->lock);
- pmbp->link = pmbe;
- spin_unlock(&pmbp->lock);
+ /*
+ * Instead of trying smaller sizes on every
+ * iteration (even if we succeed in allocating
+ * space), try using pmb_sizes[i].size again.
+ */
+ i--;
+ mapped++;
+
+ spin_unlock_irqrestore(&pmbe->lock, flags);
}
+ } while (size >= SZ_16M);
- pmbp = pmbe;
+ flush_cache_vmap(orig_addr, orig_addr + orig_size);
- /*
- * Instead of trying smaller sizes on every iteration
- * (even if we succeed in allocating space), try using
- * pmb_sizes[i].size again.
- */
- i--;
+ return 0;
+}
- spin_unlock_irqrestore(&pmbe->lock, flags);
- }
+void __iomem *pmb_remap_caller(phys_addr_t phys, unsigned long size,
+ pgprot_t prot, void *caller)
+{
+ unsigned long vaddr;
+ phys_addr_t offset, last_addr;
+ phys_addr_t align_mask;
+ unsigned long aligned;
+ struct vm_struct *area;
+ int i, ret;
- if (size >= SZ_16M)
- goto again;
+ if (!pmb_iomapping_enabled)
+ return NULL;
- return wanted - size;
+ /*
+ * Small mappings need to go through the TLB.
+ */
+ if (size < SZ_16M)
+ return ERR_PTR(-EINVAL);
+ if (!pmb_prot_valid(prot))
+ return ERR_PTR(-EINVAL);
-out:
- pmb_unmap_entry(pmbp, NR_PMB_ENTRIES);
+ for (i = 0; i < ARRAY_SIZE(pmb_sizes); i++)
+ if (size >= pmb_sizes[i].size)
+ break;
+
+ last_addr = phys + size;
+ align_mask = ~(pmb_sizes[i].size - 1);
+ offset = phys & ~align_mask;
+ phys &= align_mask;
+ aligned = ALIGN(last_addr, pmb_sizes[i].size) - phys;
+
+ /*
+ * XXX: This should really start from uncached_end, but this
+ * causes the MMU to reset, so for now we restrict it to the
+ * 0xb000...0xc000 range.
+ */
+ area = __get_vm_area_caller(aligned, VM_IOREMAP, 0xb0000000,
+ P3SEG, caller);
+ if (!area)
+ return NULL;
+
+ area->phys_addr = phys;
+ vaddr = (unsigned long)area->addr;
+
+ ret = pmb_bolt_mapping(vaddr, phys, size, prot);
+ if (unlikely(ret != 0))
+ return ERR_PTR(ret);
- return err;
+ return (void __iomem *)(offset + (char *)vaddr);
}
-void pmb_unmap(unsigned long addr)
+int pmb_unmap(void __iomem *addr)
{
struct pmb_entry *pmbe = NULL;
- int i;
+ unsigned long vaddr = (unsigned long __force)addr;
+ int i, found = 0;
read_lock(&pmb_rwlock);
for (i = 0; i < ARRAY_SIZE(pmb_entry_list); i++) {
if (test_bit(i, pmb_map)) {
pmbe = &pmb_entry_list[i];
- if (pmbe->vpn == addr)
+ if (pmbe->vpn == vaddr) {
+ found = 1;
break;
+ }
}
}
read_unlock(&pmb_rwlock);
- pmb_unmap_entry(pmbe, NR_PMB_ENTRIES);
-}
-
-static bool pmb_can_merge(struct pmb_entry *a, struct pmb_entry *b)
-{
- return (b->vpn == (a->vpn + a->size)) &&
- (b->ppn == (a->ppn + a->size)) &&
- (b->flags == a->flags);
-}
-
-static bool pmb_size_valid(unsigned long size)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(pmb_sizes); i++)
- if (pmb_sizes[i].size == size)
- return true;
-
- return false;
-}
-
-static int pmb_size_to_flags(unsigned long size)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(pmb_sizes); i++)
- if (pmb_sizes[i].size == size)
- return pmb_sizes[i].flag;
+ if (found) {
+ pmb_unmap_entry(pmbe, NR_PMB_ENTRIES);
+ return 0;
+ }
- return 0;
+ return -EINVAL;
}
static void __pmb_unmap_entry(struct pmb_entry *pmbe, int depth)
@@ -351,6 +500,8 @@ static void __pmb_unmap_entry(struct pmb_entry *pmbe, int depth)
*/
__clear_pmb_entry(pmbe);
+ flush_cache_vunmap(pmbe->vpn, pmbe->vpn + pmbe->size);
+
pmbe = pmblink->link;
pmb_free(pmblink);
@@ -369,11 +520,6 @@ static void pmb_unmap_entry(struct pmb_entry *pmbe, int depth)
write_unlock_irqrestore(&pmb_rwlock, flags);
}
-static __always_inline unsigned int pmb_ppn_in_range(unsigned long ppn)
-{
- return ppn >= __pa(memory_start) && ppn < __pa(memory_end);
-}
-
static void __init pmb_notify(void)
{
int i;
@@ -625,6 +771,18 @@ static void __init pmb_resize(void)
}
#endif
+static int __init early_pmb(char *p)
+{
+ if (!p)
+ return 0;
+
+ if (strstr(p, "iomap"))
+ pmb_iomapping_enabled = 1;
+
+ return 0;
+}
+early_param("pmb", early_pmb);
+
void __init pmb_init(void)
{
/* Synchronize software state */
@@ -713,7 +871,7 @@ static int __init pmb_debugfs_init(void)
return 0;
}
-postcore_initcall(pmb_debugfs_init);
+subsys_initcall(pmb_debugfs_init);
#ifdef CONFIG_PM
static int pmb_sysdev_suspend(struct sys_device *dev, pm_message_t state)