Commit 895532a1 authored by Paul Mackerras's avatar Paul Mackerras
Browse files

Merge branch 'for-2.6.24' of git://git.secretlab.ca/git/linux-2.6-mpc52xx into for-2.6.24

parents ad656887 e1eea9fa
......@@ -2288,6 +2288,8 @@ S: Maintained
LINUX FOR POWERPC EMBEDDED MPC52XX
P: Sylvain Munaut
M: tnt@246tNt.com
P: Grant Likely
M: grant.likely@secretlab.ca
W: http://www.246tNt.com/mpc52xx/
W: http://www.penguinppc.org/
L: linuxppc-dev@ozlabs.org
......
......@@ -9,33 +9,16 @@
* kind, whether express or implied.
*/
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/reboot.h>
#include <linux/init.h>
#include <linux/utsrelease.h>
#include <linux/seq_file.h>
#include <linux/string.h>
#include <linux/root_dev.h>
#include <linux/initrd.h>
#include <linux/timer.h>
#include <linux/pci.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/sections.h>
#include <asm/pci-bridge.h>
#include <asm/pgtable.h>
#include <linux/of.h>
#include <asm/prom.h>
#include <asm/time.h>
#include <asm/machdep.h>
#include <asm/rtas.h>
#include <asm/of_device.h>
#include <asm/of_platform.h>
#include <asm/mpc52xx.h>
#define EFIKA_PLATFORM_NAME "Efika"
......
......@@ -15,32 +15,13 @@
#undef DEBUG
#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 <asm/system.h>
#include <asm/atomic.h>
#include <linux/of.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 <asm/of_platform.h>
#include <asm/mpc52xx.h>
/* ************************************************************************
......@@ -49,19 +30,56 @@
*
*/
/*
* Fix clock configuration.
*
* Firmware is supposed to be responsible for this. If you are creating a
* new board port, do *NOT* duplicate this code. Fix your boot firmware
* to set it correctly in the first place
*/
static void __init
lite5200_setup_cpu(void)
lite5200_fix_clock_config(void)
{
struct mpc52xx_cdm __iomem *cdm;
/* Map zones */
cdm = mpc52xx_find_and_map("mpc5200-cdm");
if (!cdm) {
printk(KERN_ERR "%s() failed; expect abnormal behaviour\n",
__FUNCTION__);
return;
}
/* Use internal 48 Mhz */
out_8(&cdm->ext_48mhz_en, 0x00);
out_8(&cdm->fd_enable, 0x01);
if (in_be32(&cdm->rstcfg) & 0x40) /* Assumes 33Mhz clock */
out_be16(&cdm->fd_counters, 0x0001);
else
out_be16(&cdm->fd_counters, 0x5555);
/* Unmap the regs */
iounmap(cdm);
}
/*
* Fix setting of port_config register.
*
* Firmware is supposed to be responsible for this. If you are creating a
* new board port, do *NOT* duplicate this code. Fix your boot firmware
* to set it correctly in the first place
*/
static void __init
lite5200_fix_port_config(void)
{
struct mpc52xx_gpio __iomem *gpio;
u32 port_config;
/* Map zones */
gpio = mpc52xx_find_and_map("mpc5200-gpio");
if (!gpio) {
printk(KERN_ERR __FILE__ ": "
"Error while mapping GPIO register for port config. "
"Expect some abnormal behavior\n");
goto error;
printk(KERN_ERR "%s() failed. expect abnormal behavior\n",
__FUNCTION__);
return;
}
/* Set port config */
......@@ -80,7 +98,6 @@ lite5200_setup_cpu(void)
out_be32(&gpio->port_config, port_config);
/* Unmap zone */
error:
iounmap(gpio);
}
......@@ -119,9 +136,12 @@ static void __init lite5200_setup_arch(void)
if (ppc_md.progress)
ppc_md.progress("lite5200_setup_arch()", 0);
/* CPU & Port mux setup */
mpc52xx_setup_cpu(); /* Generic */
lite5200_setup_cpu(); /* Platorm specific */
/* Fix things that firmware should have done. */
lite5200_fix_clock_config();
lite5200_fix_port_config();
/* Some mpc5200 & mpc5200b related configuration */
mpc5200_setup_xlb_arbiter();
#ifdef CONFIG_PM
mpc52xx_suspend.board_suspend_prepare = lite5200_suspend_prepare;
......@@ -150,20 +170,6 @@ static void __init lite5200_setup_arch(void)
}
static void lite5200_show_cpuinfo(struct seq_file *m)
{
struct device_node* np = of_find_all_nodes(NULL);
const char *model = NULL;
if (np)
model = of_get_property(np, "model", NULL);
seq_printf(m, "vendor\t\t: Freescale Semiconductor\n");
seq_printf(m, "machine\t\t: %s\n", model ? model : "unknown");
of_node_put(np);
}
/*
* Called very early, MMU is off, device-tree isn't unflattened
*/
......@@ -187,6 +193,5 @@ define_machine(lite5200) {
.init = mpc52xx_declare_of_platform_devices,
.init_IRQ = mpc52xx_init_irq,
.get_irq = mpc52xx_get_irq,
.show_cpuinfo = lite5200_show_cpuinfo,
.calibrate_decr = generic_calibrate_decr,
};
......@@ -13,10 +13,9 @@
#undef DEBUG
#include <linux/kernel.h>
#include <linux/of_platform.h>
#include <asm/io.h>
#include <asm/prom.h>
#include <asm/of_platform.h>
#include <asm/mpc52xx.h>
......@@ -76,44 +75,33 @@ mpc52xx_find_ipb_freq(struct device_node *node)
EXPORT_SYMBOL(mpc52xx_find_ipb_freq);
/*
* Configure the XLB arbiter settings to match what Linux expects.
*/
void __init
mpc52xx_setup_cpu(void)
mpc5200_setup_xlb_arbiter(void)
{
struct mpc52xx_cdm __iomem *cdm;
struct mpc52xx_xlb __iomem *xlb;
/* Map zones */
cdm = mpc52xx_find_and_map("mpc5200-cdm");
xlb = mpc52xx_find_and_map("mpc5200-xlb");
if (!cdm || !xlb) {
if (!xlb) {
printk(KERN_ERR __FILE__ ": "
"Error while mapping CDM/XLB during mpc52xx_setup_cpu. "
"Error mapping XLB in mpc52xx_setup_cpu(). "
"Expect some abnormal behavior\n");
goto unmap_regs;
return;
}
/* Use internal 48 Mhz */
out_8(&cdm->ext_48mhz_en, 0x00);
out_8(&cdm->fd_enable, 0x01);
if (in_be32(&cdm->rstcfg) & 0x40) /* Assumes 33Mhz clock */
out_be16(&cdm->fd_counters, 0x0001);
else
out_be16(&cdm->fd_counters, 0x5555);
/* Configure the XLB Arbiter priorities */
out_be32(&xlb->master_pri_enable, 0xff);
out_be32(&xlb->master_priority, 0x11111111);
/* Disable XLB pipelining */
/* (cfr errate 292. We could do this only just before ATA PIO
transaction and re-enable it afterwards ...) */
/* Disable XLB pipelining
* (cfr errate 292. We could do this only just before ATA PIO
* transaction and re-enable it afterwards ...)
*/
out_be32(&xlb->config, in_be32(&xlb->config) | MPC52xx_XLB_CFG_PLDIS);
/* Unmap zones */
unmap_regs:
if (cdm) iounmap(cdm);
if (xlb) iounmap(xlb);
iounmap(xlb);
}
void __init
......
......@@ -18,18 +18,9 @@
#undef DEBUG
#include <linux/stddef.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/signal.h>
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/hardirq.h>
#include <linux/of.h>
#include <asm/io.h>
#include <asm/processor.h>
#include <asm/system.h>
#include <asm/irq.h>
#include <asm/prom.h>
#include <asm/mpc52xx.h>
#include "mpc52xx_pic.h"
......
......@@ -243,7 +243,7 @@ struct mpc52xx_cdm {
extern void __iomem * mpc52xx_find_and_map(const char *);
extern unsigned int mpc52xx_find_ipb_freq(struct device_node *node);
extern void mpc52xx_setup_cpu(void);
extern void mpc5200_setup_xlb_arbiter(void);
extern void mpc52xx_declare_of_platform_devices(void);
extern void mpc52xx_init_irq(void);
......
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