ae3a197e3d
Disintegrate asm/system.h for PowerPC. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> cc: linuxppc-dev@lists.ozlabs.org
159 lines
3.7 KiB
C
159 lines
3.7 KiB
C
/*
|
|
* Copyright 2008-2011 DENX Software Engineering GmbH
|
|
* Author: Heiko Schocher <hs@denx.de>
|
|
*
|
|
* Description:
|
|
* Keymile KMETER1 board specific routines.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <linux/stddef.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/reboot.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/kdev_t.h>
|
|
#include <linux/major.h>
|
|
#include <linux/console.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/seq_file.h>
|
|
#include <linux/root_dev.h>
|
|
#include <linux/initrd.h>
|
|
#include <linux/of_platform.h>
|
|
#include <linux/of_device.h>
|
|
|
|
#include <linux/atomic.h>
|
|
#include <asm/time.h>
|
|
#include <asm/io.h>
|
|
#include <asm/machdep.h>
|
|
#include <asm/ipic.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/prom.h>
|
|
#include <asm/udbg.h>
|
|
#include <sysdev/fsl_soc.h>
|
|
#include <sysdev/fsl_pci.h>
|
|
#include <asm/qe.h>
|
|
#include <asm/qe_ic.h>
|
|
|
|
#include "mpc83xx.h"
|
|
|
|
#define SVR_REV(svr) (((svr) >> 0) & 0xFFFF) /* Revision field */
|
|
/* ************************************************************************
|
|
*
|
|
* Setup the architecture
|
|
*
|
|
*/
|
|
static void __init mpc83xx_km_setup_arch(void)
|
|
{
|
|
#ifdef CONFIG_QUICC_ENGINE
|
|
struct device_node *np;
|
|
#endif
|
|
|
|
if (ppc_md.progress)
|
|
ppc_md.progress("kmpbec83xx_setup_arch()", 0);
|
|
|
|
mpc83xx_setup_pci();
|
|
|
|
#ifdef CONFIG_QUICC_ENGINE
|
|
qe_reset();
|
|
|
|
np = of_find_node_by_name(NULL, "par_io");
|
|
if (np != NULL) {
|
|
par_io_init(np);
|
|
of_node_put(np);
|
|
|
|
for_each_node_by_name(np, "spi")
|
|
par_io_of_config(np);
|
|
|
|
for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;)
|
|
par_io_of_config(np);
|
|
}
|
|
|
|
np = of_find_compatible_node(NULL, "network", "ucc_geth");
|
|
if (np != NULL) {
|
|
uint svid;
|
|
|
|
/* handle mpc8360ea rev.2.1 erratum 2: RGMII Timing */
|
|
svid = mfspr(SPRN_SVR);
|
|
if (SVR_REV(svid) == 0x0021) {
|
|
struct device_node *np_par;
|
|
struct resource res;
|
|
void __iomem *base;
|
|
int ret;
|
|
|
|
np_par = of_find_node_by_name(NULL, "par_io");
|
|
if (np_par == NULL) {
|
|
printk(KERN_WARNING "%s couldn;t find par_io node\n",
|
|
__func__);
|
|
return;
|
|
}
|
|
/* Map Parallel I/O ports registers */
|
|
ret = of_address_to_resource(np_par, 0, &res);
|
|
if (ret) {
|
|
printk(KERN_WARNING "%s couldn;t map par_io registers\n",
|
|
__func__);
|
|
return;
|
|
}
|
|
base = ioremap(res.start, resource_size(&res));
|
|
|
|
/*
|
|
* IMMR + 0x14A8[4:5] = 11 (clk delay for UCC 2)
|
|
* IMMR + 0x14A8[18:19] = 11 (clk delay for UCC 1)
|
|
*/
|
|
setbits32((base + 0xa8), 0x0c003000);
|
|
|
|
/*
|
|
* IMMR + 0x14AC[20:27] = 10101010
|
|
* (data delay for both UCC's)
|
|
*/
|
|
clrsetbits_be32((base + 0xac), 0xff0, 0xaa0);
|
|
iounmap(base);
|
|
of_node_put(np_par);
|
|
}
|
|
of_node_put(np);
|
|
}
|
|
#endif /* CONFIG_QUICC_ENGINE */
|
|
}
|
|
|
|
machine_device_initcall(mpc83xx_km, mpc83xx_declare_of_platform_devices);
|
|
|
|
/* list of the supported boards */
|
|
static char *board[] __initdata = {
|
|
"Keymile,KMETER1",
|
|
"Keymile,kmpbec8321",
|
|
NULL
|
|
};
|
|
|
|
/*
|
|
* Called very early, MMU is off, device-tree isn't unflattened
|
|
*/
|
|
static int __init mpc83xx_km_probe(void)
|
|
{
|
|
unsigned long node = of_get_flat_dt_root();
|
|
int i = 0;
|
|
|
|
while (board[i]) {
|
|
if (of_flat_dt_is_compatible(node, board[i]))
|
|
break;
|
|
i++;
|
|
}
|
|
return (board[i] != NULL);
|
|
}
|
|
|
|
define_machine(mpc83xx_km) {
|
|
.name = "mpc83xx-km-platform",
|
|
.probe = mpc83xx_km_probe,
|
|
.setup_arch = mpc83xx_km_setup_arch,
|
|
.init_IRQ = mpc83xx_ipic_and_qe_init_IRQ,
|
|
.get_irq = ipic_get_irq,
|
|
.restart = mpc83xx_restart,
|
|
.time_init = mpc83xx_time_init,
|
|
.calibrate_decr = generic_calibrate_decr,
|
|
.progress = udbg_progress,
|
|
};
|