Commit c20b909b authored by Roland Stigge's avatar Roland Stigge
Browse files

ARM: LPC32xx: Ethernet support 



This patch adds ethernet support to the LPC32xx ARM architecture. The actual
driver in drivers/net is contained in a separate patch.

Signed-off-by: default avatarRoland Stigge <stigge@antcom.de>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 48a5dedf

arch/arm/mach-lpc32xx/Kconfig

+25 −0
Original line number Diff line number Diff line
@@ -29,5 +29,30 @@ config ARCH_LPC32XX_UART6_SELECT 


endmenu



menu "LPC32XX chip components"



config ARCH_LPC32XX_IRAM_FOR_NET

	bool "Use IRAM for network buffers"

	default y

	help

	  Say Y here to use the LPC internal fast IRAM (i.e. 256KB SRAM) as

	  network buffer.  If the total combined required buffer sizes is

	  larger than the size of IRAM, then SDRAM will be used instead.



	  This can be enabled safely if the IRAM is not intended for other

	  uses.



config ARCH_LPC32XX_MII_SUPPORT

	bool "Check to enable MII support or leave disabled for RMII support"

	help

	  Say Y here to enable MII support, or N for RMII support. Regardless of

	  which support is selected, the ethernet interface driver needs to be

	  selected in the device driver networking section.



	  The PHY3250 reference board uses RMII, so users of this board should

	  say N.



endmenu



endif

arch/arm/mach-lpc32xx/clock.c

+1 −1
Original line number Diff line number Diff line
@@ -1134,7 +1134,7 @@ static struct clk_lookup lookups[] = { 
	_REGISTER_CLOCK("lpc32xx-adc", NULL, clk_adc)

	_REGISTER_CLOCK("ts-lpc32xx", NULL, clk_tsc)

	_REGISTER_CLOCK("dev:mmc0", NULL, clk_mmc)

	_REGISTER_CLOCK("lpc-net.0", NULL, clk_net)

	_REGISTER_CLOCK("lpc-eth.0", NULL, clk_net)

	_REGISTER_CLOCK("dev:clcd", NULL, clk_lcd)

	_REGISTER_CLOCK("lpc32xx_udc", "ck_usbd", clk_usbd)

	_REGISTER_CLOCK("lpc32xx_rtc", NULL, clk_rtc)

arch/arm/mach-lpc32xx/common.c

+21 −0
Original line number Diff line number Diff line
@@ -185,6 +185,27 @@ struct platform_device lpc32xx_ohci_device = { 
	.resource = ohci_resources,

};



/*

 * Network Support

 */

static struct resource net_resources[] = {

	[0] = DEFINE_RES_MEM(LPC32XX_ETHERNET_BASE, SZ_4K),

	[1] = DEFINE_RES_MEM(LPC32XX_IRAM_BASE, SZ_128K),

	[2] = DEFINE_RES_IRQ(IRQ_LPC32XX_ETHERNET),

};



static u64 lpc32xx_mac_dma_mask = 0xffffffffUL;

struct platform_device lpc32xx_net_device = {

	.name = "lpc-eth",

	.id = 0,

	.dev = {

		.dma_mask = &lpc32xx_mac_dma_mask,

		.coherent_dma_mask = 0xffffffffUL,

	},

	.num_resources = ARRAY_SIZE(net_resources),

	.resource = net_resources,

};



/*

 * Returns the unique ID for the device

 */

arch/arm/mach-lpc32xx/common.h

+2 −2
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ 
#ifndef __LPC32XX_COMMON_H

#define __LPC32XX_COMMON_H



#include <mach/board.h>

#include <linux/platform_device.h>



/*
@@ -32,6 +33,7 @@ extern struct platform_device lpc32xx_tsc_device; 
extern struct platform_device lpc32xx_adc_device;

extern struct platform_device lpc32xx_rtc_device;

extern struct platform_device lpc32xx_ohci_device;

extern struct platform_device lpc32xx_net_device;



/*

 * Other arch specific structures and functions
@@ -67,8 +69,6 @@ extern u32 clk_get_pclk_div(void); 
 */

extern void lpc32xx_get_uid(u32 devid[4]);



extern u32 lpc32xx_return_iram_size(void);



/*

 * Pointers used for sizing and copying suspend function data

 */

arch/arm/mach-lpc32xx/include/mach/board.h

0 → 100644
+24 −0
Original line number Diff line number Diff line 
/*

 * arm/arch/mach-lpc32xx/include/mach/board.h

 *

 * Author: Kevin Wells <kevin.wells@nxp.com>

 *

 * Copyright (C) 2010 NXP Semiconductors

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */



#ifndef __ASM_ARCH_BOARD_H

#define __ASM_ARCH_BOARD_H



extern u32 lpc32xx_return_iram_size(void);



#endif  /* __ASM_ARCH_BOARD_H */