/* Checks "l2cr=xxxx" command-line option */
int __init ppc_setup_l2cr(char *str)
{
if (cpu_has_feature(CPU_FTR_L2CR)) {
unsigned long val = simple_strtoul(str, NULL, 0);
printk(KERN_INFO "l2cr set to %lx\n", val);
_set_L2CR(0); /* force invalidate by disable cache */
_set_L2CR(val); /* and enable it */
}
return 1;
}
int __init ppc_setup_l2cr(char *str)
{
if (cpu_has_feature(CPU_FTR_L2CR)) {
unsigned long val = simple_strtoul(str, NULL, 0);
printk(KERN_INFO "l2cr set to %lx\n", val);
_set_L2CR(0);
_set_L2CR(val);
}
return 1;
}
/*
* Called very early, device-tree isn't unflattened
*/
static int __init c2k_probe(void)
{
unsigned long root = of_get_flat_dt_root();
if (!of_flat_dt_is_compatible(root, "GEFanuc,C2K"))
return 0;
printk(KERN_INFO "Detected a GEFanuc C2K board\n");
_set_L2CR(0);
_set_L2CR(L2CR_L2E | L2CR_L2PE | L2CR_L2I);
return 1;
}
static void __init
sandpoint_setup_arch(void)
{
loops_per_jiffy = 100000000 / HZ;
#ifdef CONFIG_BLK_DEV_INITRD
if (initrd_start)
ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0);
else
#endif
#ifdef CONFIG_ROOT_NFS
ROOT_DEV = to_kdev_t(0x00FF); /* /dev/nfs pseudo device */
#else
ROOT_DEV = to_kdev_t(0x0301); /* /dev/hda1 IDE disk */
#endif
/* Lookup PCI host bridges */
sandpoint_find_bridges();
#ifdef CONFIG_SERIAL
sandpoint_early_serial_map();
#endif
#ifdef CONFIG_DUMMY_CONSOLE
conswitchp = &dummy_con;
#endif
printk(KERN_INFO "Motorola SPS Sandpoint Test Platform\n");
/* DINK32 12.3 and below do not correctly enable any caches.
* We will do this now with good known values. Future versions
* of DINK32 are supposed to get this correct.
*/
if (cur_cpu_spec[0]->cpu_features & CPU_FTR_SPEC7450)
/* 745x is different. We only want to pass along enable. */
_set_L2CR(L2CR_L2E);
else if (cur_cpu_spec[0]->cpu_features & CPU_FTR_L2CR)
/* All modules have 1MB of L2. We also assume that an
* L2 divisor of 3 will work.
*/
_set_L2CR(L2CR_L2E | L2CR_L2SIZ_1MB | L2CR_L2CLK_DIV3
| L2CR_L2RAM_PIPE | L2CR_L2OH_1_0 | L2CR_L2DF);
#if 0
/* Untested right now. */
if (cur_cpu_spec[0]->cpu_features & CPU_FTR_L3CR) {
/* Magic value. */
_set_L3CR(0x8f032000);
}
#endif
}
static void __init taiga_setup_arch(void)
{
loops_per_jiffy = 50000000 / HZ;
#ifdef CONFIG_BLK_DEV_INITRD
if (initrd_start)
ROOT_DEV = Root_RAM0;
else
#endif
#ifdef CONFIG_ROOT_NFS
ROOT_DEV = Root_NFS;
#else
ROOT_DEV = Root_HDA1;
#endif
if (ppc_md.progress)
ppc_md.progress("taiga_setup_arch: setup_bridge", 0);
/* setup PCI host bridge */
taiga_setup_bridge();
#ifdef CONFIG_DUMMY_CONSOLE
conswitchp = &dummy_con;
#endif
printk(KERN_INFO "Taiga Platform\n");
printk(KERN_INFO
"Jointly ported by Freescale and Tundra Semiconductor\n");
printk(KERN_INFO
"Enabling L2 cache then enabling the HID0 prefetch engine.\n");
_set_L2CR(L2CR_L2E);
taiga_l2cr_prefetch_enable();
TODC_INIT(TODC_TYPE_MK48T35, 0, 0, TAIGA_NVRAM_BASE_ADDR, 8);
}
static void __init
pcore_setup_arch(void)
{
/* init to some ~sane value until calibrate_delay() runs */
loops_per_jiffy = 50000000/HZ;
/* Lookup PCI host bridges */
board_type = pcore_find_bridges();
#ifdef CONFIG_BLK_DEV_INITRD
if (initrd_start)
ROOT_DEV = Root_RAM0;
else
#endif
#ifdef CONFIG_ROOT_NFS
ROOT_DEV = Root_NFS;
#else
ROOT_DEV = Root_SDA2;
#endif
printk(KERN_INFO "Force PowerCore ");
if (board_type == PCORE_TYPE_6750)
printk("6750\n");
else
printk("680\n");
printk(KERN_INFO "Port by MontaVista Software, Inc. ([email protected])\n");
_set_L2CR(L2CR_L2E | _get_L2CR());
}
static void __init
katana_setup_arch(void)
{
if (ppc_md.progress)
ppc_md.progress("katana_setup_arch: enter", 0);
set_tb(0, 0);
#ifdef CONFIG_BLK_DEV_INITRD
if (initrd_start)
ROOT_DEV = Root_RAM0;
else
#endif
#ifdef CONFIG_ROOT_NFS
ROOT_DEV = Root_NFS;
#else
ROOT_DEV = Root_SDA2;
#endif
/*
* Set up the L2CR register.
*
* 750FX has only L2E, L2PE (bits 2-8 are reserved)
* DD2.0 has bug that requires the L2 to be in WRT mode
* avoid dirty data in cache
*/
if (PVR_REV(mfspr(SPRN_PVR)) == 0x0200) {
printk(KERN_INFO "DD2.0 detected. Setting L2 cache"
"to Writethrough mode\n");
_set_L2CR(L2CR_L2E | L2CR_L2PE | L2CR_L2WT);
} else
_set_L2CR(L2CR_L2E | L2CR_L2PE);
if (ppc_md.progress)
ppc_md.progress("katana_setup_arch: calling setup_bridge", 0);
katana_setup_bridge();
katana_setup_peripherals();
katana_enable_ipmi();
katana_bus_frequency = katana_bus_freq(cpld_base);
printk(KERN_INFO "Artesyn Communication Products, LLC - Katana(TM)\n");
if (ppc_md.progress)
ppc_md.progress("katana_setup_arch: exit", 0);
}
void __init
core99_init_l2(void)
{
int cpu = smp_processor_id();
if (!(cur_cpu_spec[0]->cpu_features & CPU_FTR_L2CR))
return;
if (cpu == 0){
core99_l2_cache = _get_L2CR();
printk("CPU0: L2CR is %lx\n", core99_l2_cache);
} else {
printk("CPU%d: L2CR was %lx\n", cpu, _get_L2CR());
_set_L2CR(0);
_set_L2CR(core99_l2_cache);
printk("CPU%d: L2CR set to %lx\n", cpu, core99_l2_cache);
}
}
/**************************************************************************
* FUNCTION: chestnut_setup_arch
*
* DESCRIPTION: ppc_md machine configuration callback
*
****/
static void __init
chestnut_setup_arch(void)
{
if (ppc_md.progress)
ppc_md.progress("chestnut_setup_arch: enter", 0);
/* init to some ~sane value until calibrate_delay() runs */
loops_per_jiffy = 50000000 / HZ;
/* if the time base value is greater than bus freq/4 (the TB and
* decrementer tick rate) + signed integer rollover value, we
* can spend a fair amount of time waiting for the rollover to
* happen. To get around this, initialize the time base register
* to a "safe" value.
*/
set_tb(0, 0);
#ifdef CONFIG_BLK_DEV_INITRD
if (initrd_start)
ROOT_DEV = Root_RAM0;
else
#endif
#ifdef CONFIG_ROOT_NFS
ROOT_DEV = Root_NFS;
#else
ROOT_DEV = Root_SDA2;
#endif
/*
* Set up the L2CR register.
*/
_set_L2CR(_get_L2CR() | L2CR_L2E);
chestnut_setup_bridge();
chestnut_setup_peripherals();
#ifdef CONFIG_DUMMY_CONSOLE
conswitchp = &dummy_con;
#endif
#if defined(CONFIG_SERIAL_8250)
chestnut_early_serial_map();
#endif
/* Identify the system */
printk(KERN_INFO "System Identification: IBM 750FX/GX Eval Board\n");
printk(KERN_INFO "IBM 750FX/GX port (C) 2004 MontaVista Software, Inc."
" ([email protected])\n");
if (ppc_md.progress)
ppc_md.progress("chestnut_setup_arch: exit", 0);
}
/*
* Called very early, device-tree isn't unflattened
*/
static int __init prpmc2800_probe(void)
{
unsigned long root = of_get_flat_dt_root();
unsigned long len = PLATFORM_NAME_MAX;
void *m;
if (!of_flat_dt_is_compatible(root, "motorola,PrPMC2800"))
return 0;
/* Update ppc_md.name with name from dt */
m = of_get_flat_dt_prop(root, "model", &len);
if (m)
strncpy(prpmc2800_platform_name, m,
min((int)len, PLATFORM_NAME_MAX - 1));
_set_L2CR(_get_L2CR() | L2CR_L2E);
return 1;
}
static void __init
ev64360_setup_arch(void)
{
if (ppc_md.progress)
ppc_md.progress("ev64360_setup_arch: enter", 0);
set_tb(0, 0);
#ifdef CONFIG_BLK_DEV_INITRD
if (initrd_start)
ROOT_DEV = Root_RAM0;
else
#endif
#ifdef CONFIG_ROOT_NFS
ROOT_DEV = Root_NFS;
#else
ROOT_DEV = Root_SDA2;
#endif
/*
* Set up the L2CR register.
*/
_set_L2CR(L2CR_L2E | L2CR_L2PE);
if (ppc_md.progress)
ppc_md.progress("ev64360_setup_arch: calling setup_bridge", 0);
ev64360_setup_bridge();
ev64360_setup_peripherals();
ev64360_bus_frequency = ev64360_bus_freq();
printk(KERN_INFO "%s %s port (C) 2005 Lee Nicks "
"([email protected])\n", BOARD_VENDOR, BOARD_MACHINE);
if (ppc_md.progress)
ppc_md.progress("ev64360_setup_arch: exit", 0);
}
static void __init
sandpoint_setup_arch(void)
{
/* Probe for Sandpoint model */
sandpoint_probe_type();
if (sandpoint_is_x2)
epic_serial_mode = 0;
loops_per_jiffy = 100000000 / HZ;
#ifdef CONFIG_BLK_DEV_INITRD
if (initrd_start)
ROOT_DEV = Root_RAM0;
else
#endif
#ifdef CONFIG_ROOT_NFS
ROOT_DEV = Root_NFS;
#else
ROOT_DEV = Root_HDA1;
#endif
/* Lookup PCI host bridges */
sandpoint_find_bridges();
if (strncmp (cur_ppc_sys_spec->ppc_sys_name, "8245", 4) == 0)
{
bd_t *bp = (bd_t *)__res;
struct plat_serial8250_port *pdata;
pdata = (struct plat_serial8250_port *) ppc_sys_get_pdata(MPC10X_UART0);
if (pdata)
{
pdata[0].uartclk = bp->bi_busfreq;
}
#ifdef CONFIG_SANDPOINT_ENABLE_UART1
pdata = (struct plat_serial8250_port *) ppc_sys_get_pdata(MPC10X_UART1);
if (pdata)
{
pdata[0].uartclk = bp->bi_busfreq;
}
#else
ppc_sys_device_remove(MPC10X_UART1);
#endif
}
printk(KERN_INFO "Motorola SPS Sandpoint Test Platform\n");
printk(KERN_INFO "Port by MontaVista Software, Inc. ([email protected])\n");
/* DINK32 12.3 and below do not correctly enable any caches.
* We will do this now with good known values. Future versions
* of DINK32 are supposed to get this correct.
*/
if (cpu_has_feature(CPU_FTR_SPEC7450))
/* 745x is different. We only want to pass along enable. */
_set_L2CR(L2CR_L2E);
else if (cpu_has_feature(CPU_FTR_L2CR))
/* All modules have 1MB of L2. We also assume that an
* L2 divisor of 3 will work.
*/
_set_L2CR(L2CR_L2E | L2CR_L2SIZ_1MB | L2CR_L2CLK_DIV3
| L2CR_L2RAM_PIPE | L2CR_L2OH_1_0 | L2CR_L2DF);
#if 0
/* Untested right now. */
if (cpu_has_feature(CPU_FTR_L3CR)) {
/* Magic value. */
_set_L3CR(0x8f032000);
}
#endif
}
