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r: 198394
b: refs/heads/master
c: fa6667f
h: refs/heads/master
v: v3
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Greg Ungerer committed May 24, 2010
1 parent e3b799c commit 59e1ef2
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: 4a1479b6ec268d527b842878da59712620dca78c
refs/heads/master: fa6667fe0f2966dca5464a91ca11b39fa46d74b8
4 changes: 3 additions & 1 deletion trunk/arch/m68knommu/platform/5307/Makefile
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asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1

obj-y += config.o gpio.o
obj-y += config.o gpio.o
obj-$(CONFIG_NETtel) += nettel.o
obj-$(CONFIG_CLEOPATRA) += nettel.o

153 changes: 153 additions & 0 deletions trunk/arch/m68knommu/platform/5307/nettel.c
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/***************************************************************************/

/*
* nettel.c -- startup code support for the NETtel boards
*
* Copyright (C) 2009, Greg Ungerer (gerg@snapgear.com)
*/

/***************************************************************************/

#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/nettel.h>

/***************************************************************************/

/*
* Define the IO and interrupt resources of the 2 SMC9196 interfaces.
*/
#define NETTEL_SMC0_ADDR 0x30600300
#define NETTEL_SMC0_IRQ 29

#define NETTEL_SMC1_ADDR 0x30600000
#define NETTEL_SMC1_IRQ 27

/*
* We need some access into the SMC9196 registers. Define those registers
* we will need here (including the smc91x.h doesn't seem to give us these
* in a simple form).
*/
#define SMC91xx_BANKSELECT 14
#define SMC91xx_BASEADDR 2
#define SMC91xx_BASEMAC 4

/***************************************************************************/

static struct resource nettel_smc91x_0_resources[] = {
{
.start = NETTEL_SMC0_ADDR,
.end = NETTEL_SMC0_ADDR + 0x20,
.flags = IORESOURCE_MEM,
},
{
.start = NETTEL_SMC0_IRQ,
.end = NETTEL_SMC0_IRQ,
.flags = IORESOURCE_IRQ,
},
};

static struct resource nettel_smc91x_1_resources[] = {
{
.start = NETTEL_SMC1_ADDR,
.end = NETTEL_SMC1_ADDR + 0x20,
.flags = IORESOURCE_MEM,
},
{
.start = NETTEL_SMC1_IRQ,
.end = NETTEL_SMC1_IRQ,
.flags = IORESOURCE_IRQ,
},
};

static struct platform_device nettel_smc91x[] = {
{
.name = "smc91x",
.id = 0,
.num_resources = ARRAY_SIZE(nettel_smc91x_0_resources),
.resource = nettel_smc91x_0_resources,
},
{
.name = "smc91x",
.id = 1,
.num_resources = ARRAY_SIZE(nettel_smc91x_1_resources),
.resource = nettel_smc91x_1_resources,
},
};

static struct platform_device *nettel_devices[] __initdata = {
&nettel_smc91x[0],
&nettel_smc91x[1],
};

/***************************************************************************/

static u8 nettel_macdefault[] __initdata = {
0x00, 0xd0, 0xcf, 0x00, 0x00, 0x01,
};

/*
* Set flash contained MAC address into SMC9196 core. Make sure the flash
* MAC address is sane, and not an empty flash. If no good use the Moreton
* Bay default MAC address instead.
*/

static void __init nettel_smc91x_setmac(unsigned int ioaddr, unsigned int flashaddr)
{
u16 *macp;

macp = (u16 *) flashaddr;
if ((macp[0] == 0xffff) && (macp[1] == 0xffff) && (macp[2] == 0xffff))
macp = (u16 *) &nettel_macdefault[0];

writew(1, NETTEL_SMC0_ADDR + SMC91xx_BANKSELECT);
writew(macp[0], ioaddr + SMC91xx_BASEMAC);
writew(macp[1], ioaddr + SMC91xx_BASEMAC + 2);
writew(macp[2], ioaddr + SMC91xx_BASEMAC + 4);
}

/***************************************************************************/

/*
* Re-map the address space of at least one of the SMC ethernet
* parts. Both parts power up decoding the same address, so we
* need to move one of them first, before doing anything else.
*/

static void __init nettel_smc91x_init(void)
{
writew(0x00ec, MCF_MBAR + MCFSIM_PADDR);
mcf_setppdata(0, 0x0080);
writew(1, NETTEL_SMC0_ADDR + SMC91xx_BANKSELECT);
writew(0x0067, NETTEL_SMC0_ADDR + SMC91xx_BASEADDR);
mcf_setppdata(0x0080, 0);

/* Set correct chip select timing for SMC9196 accesses */
writew(0x1180, MCF_MBAR + MCFSIM_CSCR3);

/* Set the SMC interrupts to be auto-vectored */
mcf_autovector(NETTEL_SMC0_IRQ);
mcf_autovector(NETTEL_SMC1_IRQ);

/* Set MAC addresses from flash for both interfaces */
nettel_smc91x_setmac(NETTEL_SMC0_ADDR, 0xf0006000);
nettel_smc91x_setmac(NETTEL_SMC1_ADDR, 0xf0006006);
}

/***************************************************************************/

static int __init init_nettel(void)
{
nettel_smc91x_init();
platform_add_devices(nettel_devices, ARRAY_SIZE(nettel_devices));
return 0;
}

arch_initcall(init_nettel);

/***************************************************************************/

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