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Commit 82a96f57 authored by Krzysztof Halasa's avatar Krzysztof Halasa Committed by Russell King
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[ARM] 4713/3: Adds drivers for IXP4xx QMgr and NPE features 



This patch adds drivers for IXP4xx hardware Queue Manager and for
Network Processor Engines. Requires patch #4712 (reading/writing
CPU feature (aka fuse) bits).

Posted to linux-arm-kernel on 2 Dec 2007 and revised.

Signed-off-by: default avatarKrzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent c18f6581

arch/arm/mach-ixp4xx/Kconfig

+14 −0
Original line number Original line Diff line number Diff line
@@ -189,6 +189,20 @@ config IXP4XX_INDIRECT_PCI 
	  need to use the indirect method instead. If you don't know

	  need to use the indirect method instead. If you don't know

	  what you need, leave this option unselected.

	  what you need, leave this option unselected.





config IXP4XX_QMGR

	tristate "IXP4xx Queue Manager support"

	help

	  This driver supports IXP4xx built-in hardware queue manager

	  and is automatically selected by Ethernet and HSS drivers.



config IXP4XX_NPE

	tristate "IXP4xx Network Processor Engine support"

	select HOTPLUG

	select FW_LOADER

	help

	  This driver supports IXP4xx built-in network coprocessors

	  and is automatically selected by Ethernet and HSS drivers.



endmenu

endmenu





endif
 
endif

arch/arm/mach-ixp4xx/Makefile

+2 −0
Original line number Original line Diff line number Diff line
@@ -30,3 +30,5 @@ obj-$(CONFIG_MACH_GATEWAY7001) += gateway7001-setup.o 
obj-$(CONFIG_MACH_WG302V2)	+= wg302v2-setup.o

obj-$(CONFIG_MACH_WG302V2)	+= wg302v2-setup.o





obj-$(CONFIG_PCI)		+= $(obj-pci-$(CONFIG_PCI)) common-pci.o

obj-$(CONFIG_PCI)		+= $(obj-pci-$(CONFIG_PCI)) common-pci.o

obj-$(CONFIG_IXP4XX_QMGR)	+= ixp4xx_qmgr.o

obj-$(CONFIG_IXP4XX_NPE)	+= ixp4xx_npe.o

arch/arm/mach-ixp4xx/ixp4xx_npe.c

0 → 100644
+741 −0

File added.

Preview size limit exceeded, changes collapsed.

arch/arm/mach-ixp4xx/ixp4xx_qmgr.c

0 → 100644
+274 −0

File added.

Preview size limit exceeded, changes collapsed.

include/asm-arm/arch-ixp4xx/npe.h

0 → 100644
+39 −0
Original line number Original line Diff line number Diff line 
#ifndef __IXP4XX_NPE_H

#define __IXP4XX_NPE_H



#include <linux/kernel.h>



extern const char *npe_names[];



struct npe_regs {

	u32 exec_addr, exec_data, exec_status_cmd, exec_count;

	u32 action_points[4];

	u32 watchpoint_fifo, watch_count;

	u32 profile_count;

	u32 messaging_status, messaging_control;

	u32 mailbox_status, /*messaging_*/ in_out_fifo;

};



struct npe {

	struct resource *mem_res;

	struct npe_regs __iomem *regs;

	u32 regs_phys;

	int id;

	int valid;

};





static inline const char *npe_name(struct npe *npe)

{

	return npe_names[npe->id];

}



int npe_running(struct npe *npe);

int npe_send_message(struct npe *npe, const void *msg, const char *what);

int npe_recv_message(struct npe *npe, void *msg, const char *what);

int npe_send_recv_message(struct npe *npe, void *msg, const char *what);

int npe_load_firmware(struct npe *npe, const char *name, struct device *dev);

struct npe *npe_request(int id);

void npe_release(struct npe *npe);



#endif /* __IXP4XX_NPE_H */