[PATCH 1/4] cris: add dev88_defconfig

[PATCH 1/4] cris: add dev88_defconfig

[Niklas Cassel]

It is not possible to netboot a dev88 using etraxfs_defconfig,
since etraxfs_defconfig does not set CONFIG_ETRAX_MEM_GRP*_CONFIG
or CONFIG_ETRAX_SDRAM_GRP*_CONFIG, and the default values does not work.

This new defconfig has correct memory configuration values,
points out the correct DTB to build in (CONFIG_BUILTIN_DTB="dev88"),
enables the serial driver (CONFIG_SERIAL_ETRAXFS) and the
GPIO driver (CONFIG_GPIO_ETRAXFS), and enables LEDS.

Signed-off-by: Niklas Cassel <nks@flawful.org>
---
 arch/cris/configs/dev88_defconfig | 49 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 arch/cris/configs/dev88_defconfig

diff --git a/arch/cris/configs/dev88_defconfig b/arch/cris/configs/dev88_defconfig
new file mode 100644
index 0000000..7028ca2
--- /dev/null
+++ b/arch/cris/configs/dev88_defconfig
@@ -0,0 +1,49 @@
+CONFIG_BUILTIN_DTB="dev88"
+# CONFIG_SWAP is not set
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_EXPERT=y
+CONFIG_KALLSYMS_ALL=y
+# CONFIG_BLK_DEV_BSG is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+CONFIG_ETRAX_FAST_TIMER=y
+CONFIG_ETRAXFS=y
+CONFIG_ETRAX_DRAM_SIZE=32
+CONFIG_ETRAX_FLASH1_SIZE=4
+CONFIG_ETRAX_MEM_GRP1_CONFIG=0x40688
+CONFIG_ETRAX_MEM_GRP3_CONFIG=0x3
+CONFIG_ETRAX_MEM_GRP4_CONFIG=0x10040
+CONFIG_ETRAX_SDRAM_GRP0_CONFIG=0x958
+CONFIG_ETRAX_SDRAM_TIMING=0x824a
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+# CONFIG_INET_LRO is not set
+# CONFIG_IPV6 is not set
+CONFIG_NETFILTER=y
+CONFIG_ETRAX_ETHERNET=y
+CONFIG_ETRAX_AXISFLASHMAP=y
+CONFIG_DEVTMPFS=y
+CONFIG_MTD_RAM=y
+CONFIG_MTDRAM_TOTAL_SIZE=0
+CONFIG_MTDRAM_ERASE_SIZE=64
+CONFIG_MTDRAM_ABS_POS=0x0
+CONFIG_BLK_DEV_RAM=y
+CONFIG_NETDEVICES=y
+# CONFIG_INPUT is not set
+# CONFIG_SERIO_SERPORT is not set
+# CONFIG_VT is not set
+CONFIG_SERIAL_ETRAXFS=y
+CONFIG_SERIAL_ETRAXFS_CONSOLE=y
+CONFIG_GPIO_ETRAXFS=y
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_JFFS2_FS=y
+CONFIG_CRAMFS=y
+CONFIG_NFS_FS=y
-- 
2.5.0

[PATCH 2/4] cris: cardbus: fix header include path

[Niklas Cassel]

arch/cris/arch-v32/drivers/pci/bios.c:3:35: fatal error: arch/hwregs/intr_vect.h: No such file or directory
 #include <arch/hwregs/intr_vect.h>
                                   ^

Signed-off-by: Niklas Cassel <nks@flawful.org>
---
 arch/cris/arch-v32/drivers/pci/bios.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/cris/arch-v32/drivers/pci/bios.c b/arch/cris/arch-v32/drivers/pci/bios.c
index 64a5fb9..212266a 100644
--- a/arch/cris/arch-v32/drivers/pci/bios.c
+++ b/arch/cris/arch-v32/drivers/pci/bios.c
@@ -1,6 +1,6 @@
 #include <linux/pci.h>
 #include <linux/kernel.h>
-#include <arch/hwregs/intr_vect.h>
+#include <hwregs/intr_vect.h>
 
 void pcibios_fixup_bus(struct pci_bus *b)
 {
-- 
2.5.0

[PATCH 3/4] cris: fix Kconfig mismatch when building with CONFIG_PCI

[Niklas Cassel]

I/O port access. Normally there is no I/O space on CRIS but when
Cardbus/PCI is enabled the request is passed through the bridge.

lib/pci_iomap.c: In function ‘pci_iomap_range’:
lib/pci_iomap.c:43:3: error: implicit declaration of function ‘ioport_map’ [-Werror=implicit-function-declaration]
   return __pci_ioport_map(dev, start, len);
   ^

Signed-off-by: Niklas Cassel <nks@flawful.org>
---
 arch/cris/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index e086f9e..69622ba 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -30,7 +30,7 @@ config GENERIC_CALIBRATE_DELAY
 	default y
 
 config NO_IOPORT_MAP
-	def_bool y
+	def_bool y if !PCI
 
 config FORCE_MAX_ZONEORDER
 	int
-- 
2.5.0

[PATCH 4/4] cris: use generic io.h

[Niklas Cassel]

fixes the warning:

lib/iomap.c: In function ‘ioread8_rep’:
./arch/cris/include/asm/io.h:139:31: warning: statement with no effect [-Wunused-value]
 #define insb(port,addr,count) (cris_iops ? cris_iops->read_io(port,addr,1,count) : 0)
                               ^
lib/iomap.c:56:3: note: in definition of macro ‘IO_COND’
   is_pio;      \
   ^
lib/iomap.c:197:16: note: in expansion of macro ‘insb’
  IO_COND(addr, insb(port,dst,count), mmio_insb(addr, dst, count));
                ^

cris_iops was previously set to NULL (no matter if CONFIG_PCI was set or
not), but was removed in commit ab28e96fd1cf ("CRIS v32: remove old GPIO
and LEDs code"). Before commit ab28e96fd1cf ("CRIS v32: remove old GPIO
and LEDs code"), cris_iops could have been set from an external module,
since it was exported, but as commit c24bf9b4cc6a ("CRIS: fix I/O
macros") noted, the macros using cris_iops have been broken since first
included, so they could never have worked.

Because of this, instead of readding cris_iops, remove all special
handling of cris_iops. By doing so, we can rely on the default
implementation of almost all functions previously defined in our arch
specific io.h.

Signed-off-by: Niklas Cassel <nks@flawful.org>
---
 arch/cris/include/asm/io.h | 171 +--------------------------------------------
 1 file changed, 1 insertion(+), 170 deletions(-)

diff --git a/arch/cris/include/asm/io.h b/arch/cris/include/asm/io.h
index cce8664..fe0b2a0 100644
--- a/arch/cris/include/asm/io.h
+++ b/arch/cris/include/asm/io.h
@@ -8,34 +8,6 @@
 #include <asm-generic/iomap.h>
 #include <linux/kernel.h>
 
-struct cris_io_operations
-{
-	u32 (*read_mem)(void *addr, int size);
-	void (*write_mem)(u32 val, int size, void *addr);
-	u32 (*read_io)(u32 port, void *addr, int size, int count);
-	void (*write_io)(u32 port, void *addr, int size, int count);
-};
-
-#ifdef CONFIG_PCI
-extern struct cris_io_operations *cris_iops;
-#else
-#define cris_iops ((struct cris_io_operations*)NULL)
-#endif
-
-/*
- * Change virtual addresses to physical addresses and vv.
- */
-
-static inline unsigned long virt_to_phys(volatile void * address)
-{
-	return __pa(address);
-}
-
-static inline void * phys_to_virt(unsigned long address)
-{
-	return __va(address);
-}
-
 extern void __iomem * __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
 extern void __iomem * __ioremap_prot(unsigned long phys_addr, unsigned long size, pgprot_t prot);
 
@@ -48,147 +20,6 @@ extern void iounmap(volatile void * __iomem addr);
 
 extern void __iomem * ioremap_nocache(unsigned long offset, unsigned long size);
 
-/*
- * IO bus memory addresses are also 1:1 with the physical address
- */
-#define virt_to_bus virt_to_phys
-#define bus_to_virt phys_to_virt
-
-/*
- * readX/writeX() are used to access memory mapped devices. On some
- * architectures the memory mapped IO stuff needs to be accessed
- * differently. On the CRIS architecture, we just read/write the
- * memory location directly.
- */
-#ifdef CONFIG_PCI
-#define PCI_SPACE(x) ((((unsigned)(x)) & 0x10000000) == 0x10000000)
-#else
-#define PCI_SPACE(x) 0
-#endif
-static inline unsigned char readb(const volatile void __iomem *addr)
-{
-	if (PCI_SPACE(addr) && cris_iops)
-		return cris_iops->read_mem((void*)addr, 1);
-	else
-		return *(volatile unsigned char __force *) addr;
-}
-static inline unsigned short readw(const volatile void __iomem *addr)
-{
-	if (PCI_SPACE(addr) && cris_iops)
-		return cris_iops->read_mem((void*)addr, 2);
-	else
-		return *(volatile unsigned short __force *) addr;
-}
-static inline unsigned int readl(const volatile void __iomem *addr)
-{
-	if (PCI_SPACE(addr) && cris_iops)
-		return cris_iops->read_mem((void*)addr, 4);
-	else
-		return *(volatile unsigned int __force *) addr;
-}
-#define readb_relaxed(addr) readb(addr)
-#define readw_relaxed(addr) readw(addr)
-#define readl_relaxed(addr) readl(addr)
-#define __raw_readb readb
-#define __raw_readw readw
-#define __raw_readl readl
-
-static inline void writeb(unsigned char b, volatile void __iomem *addr)
-{
-	if (PCI_SPACE(addr) && cris_iops)
-		cris_iops->write_mem(b, 1, (void*)addr);
-	else
-		*(volatile unsigned char __force *) addr = b;
-}
-static inline void writew(unsigned short b, volatile void __iomem *addr)
-{
-	if (PCI_SPACE(addr) && cris_iops)
-		cris_iops->write_mem(b, 2, (void*)addr);
-	else
-		*(volatile unsigned short __force *) addr = b;
-}
-static inline void writel(unsigned int b, volatile void __iomem *addr)
-{
-	if (PCI_SPACE(addr) && cris_iops)
-		cris_iops->write_mem(b, 4, (void*)addr);
-	else
-		*(volatile unsigned int __force *) addr = b;
-}
-#define writeb_relaxed(b, addr) writeb(b, addr)
-#define writew_relaxed(b, addr) writew(b, addr)
-#define writel_relaxed(b, addr) writel(b, addr)
-#define __raw_writeb writeb
-#define __raw_writew writew
-#define __raw_writel writel
-
-#define mmiowb()
-
-#define memset_io(a,b,c)	memset((void *)(a),(b),(c))
-#define memcpy_fromio(a,b,c)	memcpy((a),(void *)(b),(c))
-#define memcpy_toio(a,b,c)	memcpy((void *)(a),(b),(c))
-
-
-/* I/O port access. Normally there is no I/O space on CRIS but when
- * Cardbus/PCI is enabled the request is passed through the bridge.
- */
-
-#define IO_SPACE_LIMIT 0xffff
-#define inb(port) (cris_iops ? cris_iops->read_io(port,NULL,1,1) : 0)
-#define inw(port) (cris_iops ? cris_iops->read_io(port,NULL,2,1) : 0)
-#define inl(port) (cris_iops ? cris_iops->read_io(port,NULL,4,1) : 0)
-#define insb(port,addr,count) (cris_iops ? cris_iops->read_io(port,addr,1,count) : 0)
-#define insw(port,addr,count) (cris_iops ? cris_iops->read_io(port,addr,2,count) : 0)
-#define insl(port,addr,count) (cris_iops ? cris_iops->read_io(port,addr,4,count) : 0)
-static inline void outb(unsigned char data, unsigned int port)
-{
-	if (cris_iops)
-		cris_iops->write_io(port, (void *) &data, 1, 1);
-}
-static inline void outw(unsigned short data, unsigned int port)
-{
-	if (cris_iops)
-		cris_iops->write_io(port, (void *) &data, 2, 1);
-}
-static inline void outl(unsigned int data, unsigned int port)
-{
-	if (cris_iops)
-		cris_iops->write_io(port, (void *) &data, 4, 1);
-}
-static inline void outsb(unsigned int port, const void *addr,
-			 unsigned long count)
-{
-	if (cris_iops)
-		cris_iops->write_io(port, (void *)addr, 1, count);
-}
-static inline void outsw(unsigned int port, const void *addr,
-			 unsigned long count)
-{
-	if (cris_iops)
-		cris_iops->write_io(port, (void *)addr, 2, count);
-}
-static inline void outsl(unsigned int port, const void *addr,
-			 unsigned long count)
-{
-	if (cris_iops)
-		cris_iops->write_io(port, (void *)addr, 4, count);
-}
-
-#define inb_p(port)             inb(port)
-#define inw_p(port)             inw(port)
-#define inl_p(port)             inl(port)
-#define outb_p(val, port)       outb((val), (port))
-#define outw_p(val, port)       outw((val), (port))
-#define outl_p(val, port)       outl((val), (port))
-
-/*
- * Convert a physical pointer to a virtual kernel pointer for /dev/mem
- * access
- */
-#define xlate_dev_mem_ptr(p)	__va(p)
-
-/*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#define xlate_dev_kmem_ptr(p)	p
+#include <asm-generic/io.h>
 
 #endif
-- 
2.5.0