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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 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

	  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



endif

arch/arm/mach-ixp4xx/Makefile

+2 −0
Original line number 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_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 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 */