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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-08 10:08:26 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-08 10:08:26 -0700
commit53bcef60633086ad73683d01a4ef9ca678484d2d (patch)
tree8b14cc031124d0aa0da6cd3b60115bc7eaa80061 /arch/cris/include
parent4fd6c6bf83cb16321e9902b00e2af79054f4e0d6 (diff)
parent85d9865721c62a551547984e6cc8bd3ba732e294 (diff)
downloadlinux-2.6.38-lt-ux500-53bcef60633086ad73683d01a4ef9ca678484d2d.tar.gz
Merge branch 'for-linus' of git://www.jni.nu/cris
* 'for-linus' of git://www.jni.nu/cris: (51 commits) CRIS: Fix alignment problem for older ld CRIS: Always dump registers for segfaulting process. CRIS: Add config for pausing a seg-faulting process CRIS: Don't take faults while in_atomic CRIS: Fixup lookup for delay slot faults CRIS: Discard exit.text and .data at runtime CRIS: Add cache aligned and read mostly data sections CRIS: Return something from profile write CRIS: Add ARTPEC-3 and timestamps for sync-serial CRIS: Better ARTPEC-3 support for gpio CRIS: Add include guard CRIS: Better handling of pinmux settings CRIS: New DMA defines for ARTPEC-3 CRIS: __do_strncpy_from_user: Don't read the byte beyond the nil CRIS: Pagetable for ARTPEC-3 CRIS: Machine dependent memmap.h CRIS: Check if pointer is set before using it CRIS: Machine dependent dma.h CRIS: Define __read_mostly for CRISv32 CRIS: Discard .note.gnu.build-id section ...
Diffstat (limited to 'arch/cris/include')
-rw-r--r--arch/cris/include/arch-v32/arch/cache.h2
-rw-r--r--arch/cris/include/arch-v32/arch/dma.h80
-rw-r--r--arch/cris/include/arch-v32/arch/io.h20
-rw-r--r--arch/cris/include/arch-v32/arch/memmap.h25
-rw-r--r--arch/cris/include/arch-v32/arch/pgtable.h8
-rw-r--r--arch/cris/include/arch-v32/arch/uaccess.h7
-rw-r--r--arch/cris/include/arch-v32/mach-a3/mach/dma.h27
-rw-r--r--arch/cris/include/arch-v32/mach-a3/mach/startup.inc28
-rw-r--r--arch/cris/include/arch-v32/mach-fs/mach/dma.h79
-rw-r--r--arch/cris/include/arch-v32/mach-fs/mach/memmap.h24
-rw-r--r--arch/cris/include/arch-v32/mach-fs/mach/startup.inc5
-rw-r--r--arch/cris/include/asm/etraxgpio.h96
-rw-r--r--arch/cris/include/asm/sync_serial.h27
13 files changed, 292 insertions, 136 deletions
diff --git a/arch/cris/include/arch-v32/arch/cache.h b/arch/cris/include/arch-v32/arch/cache.h
index dfc73050e6b..1de779f4f24 100644
--- a/arch/cris/include/arch-v32/arch/cache.h
+++ b/arch/cris/include/arch-v32/arch/cache.h
@@ -7,6 +7,8 @@
#define L1_CACHE_BYTES 32
#define L1_CACHE_SHIFT 5
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+
void flush_dma_list(dma_descr_data *descr);
void flush_dma_descr(dma_descr_data *descr, int flush_buf);
diff --git a/arch/cris/include/arch-v32/arch/dma.h b/arch/cris/include/arch-v32/arch/dma.h
index 3674081389f..61906153a9a 100644
--- a/arch/cris/include/arch-v32/arch/dma.h
+++ b/arch/cris/include/arch-v32/arch/dma.h
@@ -1,79 +1 @@
-#ifndef _ASM_ARCH_CRIS_DMA_H
-#define _ASM_ARCH_CRIS_DMA_H
-
-/* Defines for using and allocating dma channels. */
-
-#define MAX_DMA_CHANNELS 10
-
-#define NETWORK_ETH0_TX_DMA_NBR 0 /* Ethernet 0 out. */
-#define NETWORK_ETH0 RX_DMA_NBR 1 /* Ethernet 0 in. */
-
-#define IO_PROC_DMA0_TX_DMA_NBR 2 /* IO processor DMA0 out. */
-#define IO_PROC_DMA0_RX_DMA_NBR 3 /* IO processor DMA0 in. */
-
-#define ATA_TX_DMA_NBR 2 /* ATA interface out. */
-#define ATA_RX_DMA_NBR 3 /* ATA interface in. */
-
-#define ASYNC_SER2_TX_DMA_NBR 2 /* Asynchronous serial port 2 out. */
-#define ASYNC_SER2_RX_DMA_NBR 3 /* Asynchronous serial port 2 in. */
-
-#define IO_PROC_DMA1_TX_DMA_NBR 4 /* IO processor DMA1 out. */
-#define IO_PROC_DMA1_RX_DMA_NBR 5 /* IO processor DMA1 in. */
-
-#define ASYNC_SER1_TX_DMA_NBR 4 /* Asynchronous serial port 1 out. */
-#define ASYNC_SER1_RX_DMA_NBR 5 /* Asynchronous serial port 1 in. */
-
-#define SYNC_SER0_TX_DMA_NBR 4 /* Synchronous serial port 0 out. */
-#define SYNC_SER0_RX_DMA_NBR 5 /* Synchronous serial port 0 in. */
-
-#define EXTDMA0_TX_DMA_NBR 6 /* External DMA 0 out. */
-#define EXTDMA1_RX_DMA_NBR 7 /* External DMA 1 in. */
-
-#define ASYNC_SER0_TX_DMA_NBR 6 /* Asynchronous serial port 0 out. */
-#define ASYNC_SER0_RX_DMA_NBR 7 /* Asynchronous serial port 0 in. */
-
-#define SYNC_SER1_TX_DMA_NBR 6 /* Synchronous serial port 1 out. */
-#define SYNC_SER1_RX_DMA_NBR 7 /* Synchronous serial port 1 in. */
-
-#define NETWORK_ETH1_TX_DMA_NBR 6 /* Ethernet 1 out. */
-#define NETWORK_ETH1_RX_DMA_NBR 7 /* Ethernet 1 in. */
-
-#define EXTDMA2_TX_DMA_NBR 8 /* External DMA 2 out. */
-#define EXTDMA3_RX_DMA_NBR 9 /* External DMA 3 in. */
-
-#define STRCOP_TX_DMA_NBR 8 /* Stream co-processor out. */
-#define STRCOP_RX_DMA_NBR 9 /* Stream co-processor in. */
-
-#define ASYNC_SER3_TX_DMA_NBR 8 /* Asynchronous serial port 3 out. */
-#define ASYNC_SER3_RX_DMA_NBR 9 /* Asynchronous serial port 3 in. */
-
-enum dma_owner
-{
- dma_eth0,
- dma_eth1,
- dma_iop0,
- dma_iop1,
- dma_ser0,
- dma_ser1,
- dma_ser2,
- dma_ser3,
- dma_sser0,
- dma_sser1,
- dma_ata,
- dma_strp,
- dma_ext0,
- dma_ext1,
- dma_ext2,
- dma_ext3
-};
-
-int crisv32_request_dma(unsigned int dmanr, const char * device_id,
- unsigned options, unsigned bandwidth, enum dma_owner owner);
-void crisv32_free_dma(unsigned int dmanr);
-
-/* Masks used by crisv32_request_dma options: */
-#define DMA_VERBOSE_ON_ERROR 1
-#define DMA_PANIC_ON_ERROR (2|DMA_VERBOSE_ON_ERROR)
-#define DMA_INT_MEM 4
-
-#endif /* _ASM_ARCH_CRIS_DMA_H */
+#include "mach/dma.h"
diff --git a/arch/cris/include/arch-v32/arch/io.h b/arch/cris/include/arch-v32/arch/io.h
index 72024452cea..adc5484351b 100644
--- a/arch/cris/include/arch-v32/arch/io.h
+++ b/arch/cris/include/arch-v32/arch/io.h
@@ -46,10 +46,12 @@ static inline void crisv32_io_set(struct crisv32_iopin *iopin, int val)
unsigned long flags;
spin_lock_irqsave(&iopin->port->lock, flags);
- if (val)
- *iopin->port->data |= iopin->bit;
- else
- *iopin->port->data &= ~iopin->bit;
+ if (iopin->port->data) {
+ if (val)
+ *iopin->port->data |= iopin->bit;
+ else
+ *iopin->port->data &= ~iopin->bit;
+ }
spin_unlock_irqrestore(&iopin->port->lock, flags);
}
@@ -60,10 +62,12 @@ static inline void crisv32_io_set_dir(struct crisv32_iopin* iopin,
unsigned long flags;
spin_lock_irqsave(&iopin->port->lock, flags);
- if (dir == crisv32_io_dir_in)
- *iopin->port->oe &= ~iopin->bit;
- else
- *iopin->port->oe |= iopin->bit;
+ if (iopin->port->oe) {
+ if (dir == crisv32_io_dir_in)
+ *iopin->port->oe &= ~iopin->bit;
+ else
+ *iopin->port->oe |= iopin->bit;
+ }
spin_unlock_irqrestore(&iopin->port->lock, flags);
}
diff --git a/arch/cris/include/arch-v32/arch/memmap.h b/arch/cris/include/arch-v32/arch/memmap.h
index d29df5644d3..81985c0a678 100644
--- a/arch/cris/include/arch-v32/arch/memmap.h
+++ b/arch/cris/include/arch-v32/arch/memmap.h
@@ -1,24 +1 @@
-#ifndef _ASM_ARCH_MEMMAP_H
-#define _ASM_ARCH_MEMMAP_H
-
-#define MEM_CSE0_START (0x00000000)
-#define MEM_CSE0_SIZE (0x04000000)
-#define MEM_CSE1_START (0x04000000)
-#define MEM_CSE1_SIZE (0x04000000)
-#define MEM_CSR0_START (0x08000000)
-#define MEM_CSR1_START (0x0c000000)
-#define MEM_CSP0_START (0x10000000)
-#define MEM_CSP1_START (0x14000000)
-#define MEM_CSP2_START (0x18000000)
-#define MEM_CSP3_START (0x1c000000)
-#define MEM_CSP4_START (0x20000000)
-#define MEM_CSP5_START (0x24000000)
-#define MEM_CSP6_START (0x28000000)
-#define MEM_CSP7_START (0x2c000000)
-#define MEM_INTMEM_START (0x38000000)
-#define MEM_INTMEM_SIZE (0x00020000)
-#define MEM_DRAM_START (0x40000000)
-
-#define MEM_NON_CACHEABLE (0x80000000)
-
-#endif
+#include <mach/memmap.h>
diff --git a/arch/cris/include/arch-v32/arch/pgtable.h b/arch/cris/include/arch-v32/arch/pgtable.h
index 08cb7ff7e4e..c1051a8da33 100644
--- a/arch/cris/include/arch-v32/arch/pgtable.h
+++ b/arch/cris/include/arch-v32/arch/pgtable.h
@@ -2,8 +2,16 @@
#define _ASM_CRIS_ARCH_PGTABLE_H
/* Define the kernels virtual memory area. */
+
+/* See head.S for differences between ARTPEC-3 and ETRAX FS. */
+#ifdef CONFIG_CRIS_MACH_ARTPEC3
+#define VMALLOC_START KSEG_E
+#define VMALLOC_END KSEG_F
+#else
#define VMALLOC_START KSEG_D
#define VMALLOC_END KSEG_E
+#endif
+
#define VMALLOC_VMADDR(x) ((unsigned long)(x))
#endif /* _ASM_CRIS_ARCH_PGTABLE_H */
diff --git a/arch/cris/include/arch-v32/arch/uaccess.h b/arch/cris/include/arch-v32/arch/uaccess.h
index 6b207f1b662..3196019706c 100644
--- a/arch/cris/include/arch-v32/arch/uaccess.h
+++ b/arch/cris/include/arch-v32/arch/uaccess.h
@@ -122,14 +122,14 @@ __do_strncpy_from_user(char *dst, const char *src, long count)
__asm__ __volatile__ (
" move.d %3,%0\n"
"5: move.b [%2+],$acr\n"
- "1: beq 2f\n"
+ "1: beq 6f\n"
" move.b $acr,[%1+]\n"
" subq 1,%0\n"
"2: bne 1b\n"
" move.b [%2+],$acr\n"
- " sub.d %3,%0\n"
+ "6: sub.d %3,%0\n"
" neg.d %0,%0\n"
"3:\n"
" .section .fixup,\"ax\"\n"
@@ -140,8 +140,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count)
/* The address for a fault at the first move is trivial.
The address for a fault at the second move is that of
the preceding branch insn, since the move insn is in
- its delay-slot. That address is also a branch
- target. Just so you don't get confused... */
+ its delay-slot. Just so you don't get confused... */
" .previous\n"
" .section __ex_table,\"a\"\n"
" .dword 5b,4b\n"
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/dma.h b/arch/cris/include/arch-v32/mach-a3/mach/dma.h
index 9e8eb13b601..f01dca1ad10 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/dma.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/dma.h
@@ -5,6 +5,33 @@
#define MAX_DMA_CHANNELS 12 /* 8 and 10 not used. */
+#define NETWORK_ETH_TX_DMA_NBR 0 /* Ethernet 0 out. */
+#define NETWORK_ETH_RX_DMA_NBR 1 /* Ethernet 0 in. */
+
+#define IO_PROC_DMA_TX_DMA_NBR 4 /* IO processor DMA0 out. */
+#define IO_PROC_DMA_RX_DMA_NBR 5 /* IO processor DMA0 in. */
+
+#define ASYNC_SER3_TX_DMA_NBR 2 /* Asynchronous serial port 3 out. */
+#define ASYNC_SER3_RX_DMA_NBR 3 /* Asynchronous serial port 3 in. */
+
+#define ASYNC_SER2_TX_DMA_NBR 6 /* Asynchronous serial port 2 out. */
+#define ASYNC_SER2_RX_DMA_NBR 7 /* Asynchronous serial port 2 in. */
+
+#define ASYNC_SER1_TX_DMA_NBR 4 /* Asynchronous serial port 1 out. */
+#define ASYNC_SER1_RX_DMA_NBR 5 /* Asynchronous serial port 1 in. */
+
+#define SYNC_SER_TX_DMA_NBR 6 /* Synchronous serial port 0 out. */
+#define SYNC_SER_RX_DMA_NBR 7 /* Synchronous serial port 0 in. */
+
+#define ASYNC_SER0_TX_DMA_NBR 0 /* Asynchronous serial port 0 out. */
+#define ASYNC_SER0_RX_DMA_NBR 1 /* Asynchronous serial port 0 in. */
+
+#define STRCOP_TX_DMA_NBR 2 /* Stream co-processor out. */
+#define STRCOP_RX_DMA_NBR 3 /* Stream co-processor in. */
+
+#define dma_eth0 dma_eth
+#define dma_eth1 dma_eth
+
enum dma_owner {
dma_eth,
dma_ser0,
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/startup.inc b/arch/cris/include/arch-v32/mach-a3/mach/startup.inc
index 2f23e5e16f4..2d52bcc96ed 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/startup.inc
+++ b/arch/cris/include/arch-v32/mach-a3/mach/startup.inc
@@ -1,9 +1,19 @@
+#ifndef STARTUP_INC_INCLUDED
+#define STARTUP_INC_INCLUDED
+
#include <hwregs/asm/reg_map_asm.h>
#include <hwregs/asm/gio_defs_asm.h>
#include <hwregs/asm/pio_defs_asm.h>
#include <hwregs/asm/clkgen_defs_asm.h>
#include <hwregs/asm/pinmux_defs_asm.h>
+ .macro GIO_SET_P BITS, OUTREG
+ bmi 1f ; btstq: bit -> N flag
+ nop
+ or.d \BITS, \OUTREG
+1:
+ .endm
+
.macro GIO_INIT
move.d CONFIG_ETRAX_DEF_GIO_PA_OUT, $r0
move.d REG_ADDR(gio, regi_gio, rw_pa_dout), $r1
@@ -32,10 +42,23 @@
move.d 0xFFFFFFFF, $r0
move.d REG_ADDR(pinmux, regi_pinmux, rw_gio_pa), $r1
move.d $r0, [$r1]
- move.d REG_ADDR(pinmux, regi_pinmux, rw_gio_pb), $r1
- move.d $r0, [$r1]
move.d REG_ADDR(pinmux, regi_pinmux, rw_gio_pc), $r1
move.d $r0, [$r1]
+
+ ;; If eth_mdio, eth, geth bits are set in hwprot, don't
+ ;; set them to gpio, as this means they have been configured
+ ;; earlier and shouldn't be changed.
+ move.d 0xFC000000, $r2 ; pins 25..0 are eth_mdio, eth, geth
+ move.d REG_ADDR(pinmux, regi_pinmux, rw_hwprot), $r1
+ move.d [$r1], $r0
+ btstq REG_BIT(pinmux, rw_hwprot, eth), $r0
+ GIO_SET_P 0x00FFFF00, $r2 ;; pins 8..23 are eth
+ btstq REG_BIT(pinmux, rw_hwprot, eth_mdio), $r0
+ GIO_SET_P 0x03000000, $r2 ;; pins 24..25 are eth_mdio
+ btstq REG_BIT(pinmux, rw_hwprot, geth), $r0
+ GIO_SET_P 0x000000FF, $r2 ;; pins 0..7 are geth
+ move.d REG_ADDR(pinmux, regi_pinmux, rw_gio_pb), $r1
+ move.d $r2, [$r1]
.endm
.macro START_CLOCKS
@@ -58,3 +81,4 @@
move.d CONFIG_ETRAX_PIO_CE2_CFG, $r1
move.d $r1, [$r0]
.endm
+#endif
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/dma.h b/arch/cris/include/arch-v32/mach-fs/mach/dma.h
new file mode 100644
index 00000000000..a8c59292586
--- /dev/null
+++ b/arch/cris/include/arch-v32/mach-fs/mach/dma.h
@@ -0,0 +1,79 @@
+#ifndef _ASM_ARCH_CRIS_DMA_H
+#define _ASM_ARCH_CRIS_DMA_H
+
+/* Defines for using and allocating dma channels. */
+
+#define MAX_DMA_CHANNELS 10
+
+#define NETWORK_ETH0_TX_DMA_NBR 0 /* Ethernet 0 out. */
+#define NETWORK_ETH0 RX_DMA_NBR 1 /* Ethernet 0 in. */
+
+#define IO_PROC_DMA0_TX_DMA_NBR 2 /* IO processor DMA0 out. */
+#define IO_PROC_DMA0_RX_DMA_NBR 3 /* IO processor DMA0 in. */
+
+#define ATA_TX_DMA_NBR 2 /* ATA interface out. */
+#define ATA_RX_DMA_NBR 3 /* ATA interface in. */
+
+#define ASYNC_SER2_TX_DMA_NBR 2 /* Asynchronous serial port 2 out. */
+#define ASYNC_SER2_RX_DMA_NBR 3 /* Asynchronous serial port 2 in. */
+
+#define IO_PROC_DMA1_TX_DMA_NBR 4 /* IO processor DMA1 out. */
+#define IO_PROC_DMA1_RX_DMA_NBR 5 /* IO processor DMA1 in. */
+
+#define ASYNC_SER1_TX_DMA_NBR 4 /* Asynchronous serial port 1 out. */
+#define ASYNC_SER1_RX_DMA_NBR 5 /* Asynchronous serial port 1 in. */
+
+#define SYNC_SER0_TX_DMA_NBR 4 /* Synchronous serial port 0 out. */
+#define SYNC_SER0_RX_DMA_NBR 5 /* Synchronous serial port 0 in. */
+
+#define EXTDMA0_TX_DMA_NBR 6 /* External DMA 0 out. */
+#define EXTDMA1_RX_DMA_NBR 7 /* External DMA 1 in. */
+
+#define ASYNC_SER0_TX_DMA_NBR 6 /* Asynchronous serial port 0 out. */
+#define ASYNC_SER0_RX_DMA_NBR 7 /* Asynchronous serial port 0 in. */
+
+#define SYNC_SER1_TX_DMA_NBR 6 /* Synchronous serial port 1 out. */
+#define SYNC_SER1_RX_DMA_NBR 7 /* Synchronous serial port 1 in. */
+
+#define NETWORK_ETH1_TX_DMA_NBR 6 /* Ethernet 1 out. */
+#define NETWORK_ETH1_RX_DMA_NBR 7 /* Ethernet 1 in. */
+
+#define EXTDMA2_TX_DMA_NBR 8 /* External DMA 2 out. */
+#define EXTDMA3_RX_DMA_NBR 9 /* External DMA 3 in. */
+
+#define STRCOP_TX_DMA_NBR 8 /* Stream co-processor out. */
+#define STRCOP_RX_DMA_NBR 9 /* Stream co-processor in. */
+
+#define ASYNC_SER3_TX_DMA_NBR 8 /* Asynchronous serial port 3 out. */
+#define ASYNC_SER3_RX_DMA_NBR 9 /* Asynchronous serial port 3 in. */
+
+enum dma_owner {
+ dma_eth0,
+ dma_eth1,
+ dma_iop0,
+ dma_iop1,
+ dma_ser0,
+ dma_ser1,
+ dma_ser2,
+ dma_ser3,
+ dma_sser0,
+ dma_sser1,
+ dma_ata,
+ dma_strp,
+ dma_ext0,
+ dma_ext1,
+ dma_ext2,
+ dma_ext3
+};
+
+int crisv32_request_dma(unsigned int dmanr, const char *device_id,
+ unsigned options, unsigned bandwidth,
+ enum dma_owner owner);
+void crisv32_free_dma(unsigned int dmanr);
+
+/* Masks used by crisv32_request_dma options: */
+#define DMA_VERBOSE_ON_ERROR 1
+#define DMA_PANIC_ON_ERROR (2|DMA_VERBOSE_ON_ERROR)
+#define DMA_INT_MEM 4
+
+#endif /* _ASM_ARCH_CRIS_DMA_H */
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/memmap.h b/arch/cris/include/arch-v32/mach-fs/mach/memmap.h
new file mode 100644
index 00000000000..d29df5644d3
--- /dev/null
+++ b/arch/cris/include/arch-v32/mach-fs/mach/memmap.h
@@ -0,0 +1,24 @@
+#ifndef _ASM_ARCH_MEMMAP_H
+#define _ASM_ARCH_MEMMAP_H
+
+#define MEM_CSE0_START (0x00000000)
+#define MEM_CSE0_SIZE (0x04000000)
+#define MEM_CSE1_START (0x04000000)
+#define MEM_CSE1_SIZE (0x04000000)
+#define MEM_CSR0_START (0x08000000)
+#define MEM_CSR1_START (0x0c000000)
+#define MEM_CSP0_START (0x10000000)
+#define MEM_CSP1_START (0x14000000)
+#define MEM_CSP2_START (0x18000000)
+#define MEM_CSP3_START (0x1c000000)
+#define MEM_CSP4_START (0x20000000)
+#define MEM_CSP5_START (0x24000000)
+#define MEM_CSP6_START (0x28000000)
+#define MEM_CSP7_START (0x2c000000)
+#define MEM_INTMEM_START (0x38000000)
+#define MEM_INTMEM_SIZE (0x00020000)
+#define MEM_DRAM_START (0x40000000)
+
+#define MEM_NON_CACHEABLE (0x80000000)
+
+#endif
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/startup.inc b/arch/cris/include/arch-v32/mach-fs/mach/startup.inc
index 4a10ccbd6cc..dd1abbdcbc7 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/startup.inc
+++ b/arch/cris/include/arch-v32/mach-fs/mach/startup.inc
@@ -1,3 +1,6 @@
+#ifndef STARTUP_INC_INCLUDED
+#define STARTUP_INC_INCLUDED
+
#include <hwregs/asm/reg_map_asm.h>
#include <hwregs/asm/bif_core_defs_asm.h>
#include <hwregs/asm/gio_defs_asm.h>
@@ -75,3 +78,5 @@
move.d $r10, [$r11]
#endif
.endm
+
+#endif
diff --git a/arch/cris/include/asm/etraxgpio.h b/arch/cris/include/asm/etraxgpio.h
index 38f1c8e1770..d474818a537 100644
--- a/arch/cris/include/asm/etraxgpio.h
+++ b/arch/cris/include/asm/etraxgpio.h
@@ -21,31 +21,35 @@
* /dev/leds minor 2, Access to leds depending on kernelconfig
*
* For ARTPEC-3 (CONFIG_CRIS_MACH_ARTPEC3):
- * /dev/gpioa minor 0, 8 bit GPIO, each bit can change direction
- * /dev/gpiob minor 1, 18 bit GPIO, each bit can change direction
- * /dev/gpioc minor 3, 18 bit GPIO, each bit can change direction
- * /dev/gpiod minor 4, 18 bit GPIO, each bit can change direction
+ * /dev/gpioa minor 0, 32 bit GPIO, each bit can change direction
+ * /dev/gpiob minor 1, 32 bit GPIO, each bit can change direction
+ * /dev/gpioc minor 3, 16 bit GPIO, each bit can change direction
+ * /dev/gpiod minor 4, 32 bit GPIO, input only
* /dev/leds minor 2, Access to leds depending on kernelconfig
* /dev/pwm0 minor 16, PWM channel 0 on PA30
* /dev/pwm1 minor 17, PWM channel 1 on PA31
* /dev/pwm2 minor 18, PWM channel 2 on PB26
+ * /dev/ppwm minor 19, PPWM channel
*
*/
#ifndef _ASM_ETRAXGPIO_H
#define _ASM_ETRAXGPIO_H
+#define GPIO_MINOR_FIRST 0
+
+#define ETRAXGPIO_IOCTYPE 43
+
/* etraxgpio _IOC_TYPE, bits 8 to 15 in ioctl cmd */
#ifdef CONFIG_ETRAX_ARCH_V10
-#define ETRAXGPIO_IOCTYPE 43
#define GPIO_MINOR_A 0
#define GPIO_MINOR_B 1
#define GPIO_MINOR_LEDS 2
#define GPIO_MINOR_G 3
#define GPIO_MINOR_LAST 3
+#define GPIO_MINOR_LAST_REAL GPIO_MINOR_LAST
#endif
#ifdef CONFIG_ETRAXFS
-#define ETRAXGPIO_IOCTYPE 43
#define GPIO_MINOR_A 0
#define GPIO_MINOR_B 1
#define GPIO_MINOR_LEDS 2
@@ -58,10 +62,10 @@
#else
#define GPIO_MINOR_LAST 5
#endif
+#define GPIO_MINOR_LAST_REAL GPIO_MINOR_LAST
#endif
#ifdef CONFIG_CRIS_MACH_ARTPEC3
-#define ETRAXGPIO_IOCTYPE 43
#define GPIO_MINOR_A 0
#define GPIO_MINOR_B 1
#define GPIO_MINOR_LEDS 2
@@ -73,12 +77,17 @@
#else
#define GPIO_MINOR_LAST 4
#endif
-#define GPIO_MINOR_PWM0 16
-#define GPIO_MINOR_PWM1 17
-#define GPIO_MINOR_PWM2 18
-#define GPIO_MINOR_LAST_PWM GPIO_MINOR_PWM2
+#define GPIO_MINOR_FIRST_PWM 16
+#define GPIO_MINOR_PWM0 (GPIO_MINOR_FIRST_PWM+0)
+#define GPIO_MINOR_PWM1 (GPIO_MINOR_FIRST_PWM+1)
+#define GPIO_MINOR_PWM2 (GPIO_MINOR_FIRST_PWM+2)
+#define GPIO_MINOR_PPWM (GPIO_MINOR_FIRST_PWM+3)
+#define GPIO_MINOR_LAST_PWM GPIO_MINOR_PPWM
+#define GPIO_MINOR_LAST_REAL GPIO_MINOR_LAST_PWM
#endif
+
+
/* supported ioctl _IOC_NR's */
#define IO_READBITS 0x1 /* read and return current port bits (obsolete) */
@@ -125,12 +134,10 @@
*/
#define IO_READ_INBITS 0x10 /* *arg is result of reading the input pins */
#define IO_READ_OUTBITS 0x11 /* *arg is result of reading the output shadow */
-#define IO_SETGET_INPUT 0x12 /* bits set in *arg is set to input,
- * *arg updated with current input pins.
- */
-#define IO_SETGET_OUTPUT 0x13 /* bits set in *arg is set to output,
- * *arg updated with current output pins.
- */
+#define IO_SETGET_INPUT 0x12 /* bits set in *arg is set to input, */
+ /* *arg updated with current input pins. */
+#define IO_SETGET_OUTPUT 0x13 /* bits set in *arg is set to output, */
+ /* *arg updated with current output pins. */
/* The following ioctl's are applicable to the PWM channels only */
@@ -140,7 +147,8 @@ enum io_pwm_mode {
PWM_OFF = 0, /* disabled, deallocated */
PWM_STANDARD = 1, /* 390 kHz, duty cycle 0..255/256 */
PWM_FAST = 2, /* variable freq, w/ 10ns active pulse len */
- PWM_VARFREQ = 3 /* individually configurable high/low periods */
+ PWM_VARFREQ = 3, /* individually configurable high/low periods */
+ PWM_SOFT = 4 /* software generated */
};
struct io_pwm_set_mode {
@@ -176,4 +184,56 @@ struct io_pwm_set_duty {
int duty; /* 0..255 */
};
+/* Returns information about the latest PWM pulse.
+ * lo: Length of the latest low period, in units of 10ns.
+ * hi: Length of the latest high period, in units of 10ns.
+ * cnt: Time since last detected edge, in units of 10ns.
+ *
+ * The input source to PWM is decied by IO_PWM_SET_INPUT_SRC.
+ *
+ * NOTE: All PWM devices is connected to the same input source.
+ */
+#define IO_PWM_GET_PERIOD 0x23
+
+struct io_pwm_get_period {
+ unsigned int lo;
+ unsigned int hi;
+ unsigned int cnt;
+};
+
+/* Sets the input source for the PWM input. For the src value see the
+ * register description for gio:rw_pwm_in_cfg.
+ *
+ * NOTE: All PWM devices is connected to the same input source.
+ */
+#define IO_PWM_SET_INPUT_SRC 0x24
+struct io_pwm_set_input_src {
+ unsigned int src; /* 0..7 */
+};
+
+/* Sets the duty cycles in steps of 1/256, 0 = 0%, 255 = 100% duty cycle */
+#define IO_PPWM_SET_DUTY 0x25
+
+struct io_ppwm_set_duty {
+ int duty; /* 0..255 */
+};
+
+/* Configuraton struct for the IO_PWMCLK_SET_CONFIG ioctl to configure
+ * PWM capable gpio pins:
+ */
+#define IO_PWMCLK_SETGET_CONFIG 0x26
+struct gpio_pwmclk_conf {
+ unsigned int gpiopin; /* The pin number based on the opened device */
+ unsigned int baseclk; /* The base clock to use, or sw will select one close*/
+ unsigned int low; /* The number of low periods of the baseclk */
+ unsigned int high; /* The number of high periods of the baseclk */
+};
+
+/* Examples:
+ * To get a symmetric 12 MHz clock without knowing anything about the hardware:
+ * baseclk = 12000000, low = 0, high = 0
+ * To just get info of current setting:
+ * baseclk = 0, low = 0, high = 0, the values will be updated by driver.
+ */
+
#endif
diff --git a/arch/cris/include/asm/sync_serial.h b/arch/cris/include/asm/sync_serial.h
index d87c24df2b3..7f827fea30e 100644
--- a/arch/cris/include/asm/sync_serial.h
+++ b/arch/cris/include/asm/sync_serial.h
@@ -19,6 +19,7 @@
#define SSP_OPOLARITY _IOR('S', 4, unsigned int)
#define SSP_SPI _IOR('S', 5, unsigned int)
#define SSP_INBUFCHUNK _IOR('S', 6, unsigned int)
+#define SSP_INPUT _IOR('S', 7, unsigned int)
/* Values for SSP_SPEED */
#define SSP150 0
@@ -37,6 +38,7 @@
#define SSP921600 13
#define SSP3125000 14
#define CODEC 15
+#define CODEC_f32768 16
#define FREQ_4MHz 0
#define FREQ_2MHz 1
@@ -46,9 +48,14 @@
#define FREQ_128kHz 5
#define FREQ_64kHz 6
#define FREQ_32kHz 7
+/* FREQ_* with values where bit (value & 0x10) is set are */
+/* used for CODEC_f32768 */
+#define FREQ_4096kHz 16 /* CODEC_f32768 */
/* Used by application to set CODEC divider, word rate and frame rate */
-#define CODEC_VAL(freq, clk_per_sync, sync_per_frame) (CODEC | (freq << 8) | (clk_per_sync << 16) | (sync_per_frame << 28))
+#define CODEC_VAL(freq, clk_per_sync, sync_per_frame) \
+ ((CODEC + ((freq & 0x10) >> 4)) | (freq << 8) | \
+ (clk_per_sync << 16) | (sync_per_frame << 28))
/* Used by driver to extract speed */
#define GET_SPEED(x) (x & 0xff)
@@ -68,6 +75,7 @@
#define NORMAL_SYNC 1
#define EARLY_SYNC 2
#define SECOND_WORD_SYNC 0x40000
+#define LATE_SYNC 0x80000
#define BIT_SYNC 4
#define WORD_SYNC 8
@@ -104,4 +112,21 @@
/* Values for SSP_INBUFCHUNK */
/* plain integer with the size of DMA chunks */
+/* To ensure that the timestamps are aligned with the data being read
+ * the read length MUST be a multiple of the length of the DMA buffers.
+ *
+ * Use a multiple of SSP_INPUT_CHUNK_SIZE defined below.
+ */
+#define SSP_INPUT_CHUNK_SIZE 256
+
+/* Request struct to pass through the ioctl interface to read
+ * data with timestamps.
+ */
+struct ssp_request {
+ char __user *buf; /* Where to put the data. */
+ size_t len; /* Size of buf. MUST be a multiple of */
+ /* SSP_INPUT_CHUNK_SIZE! */
+ struct timespec ts; /* The time the data was sampled. */
+};
+
#endif