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-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
11 files changed, 188 insertions, 117 deletions
diff --git a/arch/cris/include/arch-v32/arch/cache.h b/arch/cris/include/arch-v32/arch/cache.h
index dfc73050e6b4..1de779f4f240 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 3674081389fd..61906153a9af 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 72024452cea9..adc5484351bf 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 d29df5644d3e..81985c0a6789 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 08cb7ff7e4e7..c1051a8da33d 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 6b207f1b6622..3196019706cb 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 9e8eb13b601d..f01dca1ad108 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 2f23e5e16f4a..2d52bcc96ed5 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 000000000000..a8c59292586a
--- /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 000000000000..d29df5644d3e
--- /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 4a10ccbd6cc1..dd1abbdcbc7a 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
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.