Commit ee1262db authored by Linus Torvalds's avatar Linus Torvalds

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6:
  sparc: Set UTS_MACHINE correctly.
  sparc,leon: init_leon srmmu cleanup
  sparc32: Remove early interrupt enable.
  sparc, leon: Added Aeroflex Gaisler entry in manufacturer_info structure
  sparc64: Faster early-boot framebuffer console.
  Revert "sparc: Make atomic locks raw"
  sparc: remove unused nfsd #includes
  sparc: Fixup last users of irq_chip->typename
  Added sparc_leon3_snooping_enabled() and converted extern inline to static inline
  No auxio on LEON
  apbuart: Use of_find_node_by_path to find root node.
  sparc: Replace old style lock initializer
  sparc: Make atomic locks raw
  apbuart: Fix build and missing driver unregister.
  apbuart: Kill dependency on deprecated Sparc-only PROM interfaces.
  apbuart: Fix build warning.
  sparc: Support for GRLIB APBUART serial port
  watchdog: Remove BKL from rio watchdog driver
  sparc: Remove BKL from apc
  sparc,leon: Sparc-Leon SMP support
parents a421018e 7f5620a5
......@@ -221,6 +221,13 @@ config SPARC64_SMP
default y
depends on SPARC64 && SMP
config EARLYFB
bool "Support for early boot text console"
default y
depends on SPARC64
help
Say Y here to enable a faster early framebuffer boot console.
choice
prompt "Kernel page size" if SPARC64
default SPARC64_PAGE_SIZE_8KB
......
......@@ -27,6 +27,7 @@ AS := $(AS) -32
LDFLAGS := -m elf32_sparc
CHECKFLAGS += -D__sparc__
export BITS := 32
UTS_MACHINE := sparc
#KBUILD_CFLAGS += -g -pipe -fcall-used-g5 -fcall-used-g7
KBUILD_CFLAGS += -m32 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7
......@@ -46,6 +47,7 @@ CHECKFLAGS += -D__sparc__ -D__sparc_v9__ -D__arch64__ -m64
LDFLAGS := -m elf64_sparc
export BITS := 64
UTS_MACHINE := sparc64
KBUILD_CFLAGS += -m64 -pipe -mno-fpu -mcpu=ultrasparc -mcmodel=medlow \
-ffixed-g4 -ffixed-g5 -fcall-used-g7 -Wno-sign-compare \
......
#ifndef _SPARC_BTEXT_H
#define _SPARC_BTEXT_H
extern int btext_find_display(void);
#endif /* _SPARC_BTEXT_H */
......@@ -148,7 +148,7 @@ static inline unsigned long leon_load_reg(unsigned long paddr)
return retval;
}
extern inline void leon_srmmu_disabletlb(void)
static inline void leon_srmmu_disabletlb(void)
{
unsigned int retval;
__asm__ __volatile__("lda [%%g0] %2, %0\n\t" : "=r"(retval) : "r"(0),
......@@ -158,7 +158,7 @@ extern inline void leon_srmmu_disabletlb(void)
"i"(ASI_LEON_MMUREGS) : "memory");
}
extern inline void leon_srmmu_enabletlb(void)
static inline void leon_srmmu_enabletlb(void)
{
unsigned int retval;
__asm__ __volatile__("lda [%%g0] %2, %0\n\t" : "=r"(retval) : "r"(0),
......@@ -190,7 +190,7 @@ extern void leon_init_IRQ(void);
extern unsigned long last_valid_pfn;
extern inline unsigned long sparc_leon3_get_dcachecfg(void)
static inline unsigned long sparc_leon3_get_dcachecfg(void)
{
unsigned int retval;
__asm__ __volatile__("lda [%1] %2, %0\n\t" :
......@@ -201,7 +201,7 @@ extern inline unsigned long sparc_leon3_get_dcachecfg(void)
}
/* enable snooping */
extern inline void sparc_leon3_enable_snooping(void)
static inline void sparc_leon3_enable_snooping(void)
{
__asm__ __volatile__ ("lda [%%g0] 2, %%l1\n\t"
"set 0x800000, %%l2\n\t"
......@@ -209,7 +209,14 @@ extern inline void sparc_leon3_enable_snooping(void)
"sta %%l2, [%%g0] 2\n\t" : : : "l1", "l2");
};
extern inline void sparc_leon3_disable_cache(void)
static inline int sparc_leon3_snooping_enabled(void)
{
u32 cctrl;
__asm__ __volatile__("lda [%%g0] 2, %0\n\t" : "=r"(cctrl));
return (cctrl >> 23) & 1;
};
static inline void sparc_leon3_disable_cache(void)
{
__asm__ __volatile__ ("lda [%%g0] 2, %%l1\n\t"
"set 0x00000f, %%l2\n\t"
......@@ -340,6 +347,30 @@ extern int leon_flush_needed(void);
extern void leon_switch_mm(void);
extern int srmmu_swprobe_trace;
#ifdef CONFIG_SMP
extern int leon_smp_nrcpus(void);
extern void leon_clear_profile_irq(int cpu);
extern void leon_smp_done(void);
extern void leon_boot_cpus(void);
extern int leon_boot_one_cpu(int i);
void leon_init_smp(void);
extern void cpu_probe(void);
extern void cpu_idle(void);
extern void init_IRQ(void);
extern void cpu_panic(void);
extern int __leon_processor_id(void);
void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu);
extern unsigned int real_irq_entry[], smpleon_ticker[];
extern unsigned int patchme_maybe_smp_msg[];
extern unsigned long trapbase_cpu1[];
extern unsigned long trapbase_cpu2[];
extern unsigned long trapbase_cpu3[];
extern unsigned int t_nmi[], linux_trap_ipi15_leon[];
extern unsigned int linux_trap_ipi15_sun4m[];
#endif /* CONFIG_SMP */
#endif /* __KERNEL__ */
#endif /* __ASSEMBLY__ */
......@@ -356,6 +387,10 @@ extern int srmmu_swprobe_trace;
#define leon_switch_mm() do {} while (0)
#define leon_init_IRQ() do {} while (0)
#define init_leon() do {} while (0)
#define leon_smp_done() do {} while (0)
#define leon_boot_cpus() do {} while (0)
#define leon_boot_one_cpu(i) 1
#define leon_init_smp() do {} while (0)
#endif /* !defined(CONFIG_SPARC_LEON) */
......
......@@ -35,8 +35,8 @@ struct rw_semaphore {
#endif
#define __RWSEM_INITIALIZER(name) \
{ RWSEM_UNLOCKED_VALUE, SPIN_LOCK_UNLOCKED, LIST_HEAD_INIT((name).wait_list) \
__RWSEM_DEP_MAP_INIT(name) }
{ RWSEM_UNLOCKED_VALUE, __SPIN_LOCK_UNLOCKED((name).wait_lock), \
LIST_HEAD_INIT((name).wait_list) __RWSEM_DEP_MAP_INIT(name) }
#define DECLARE_RWSEM(name) \
struct rw_semaphore name = __RWSEM_INITIALIZER(name)
......
......@@ -106,6 +106,15 @@ static inline int hard_smp4d_processor_id(void)
return cpuid;
}
extern inline int hard_smpleon_processor_id(void)
{
int cpuid;
__asm__ __volatile__("rd %%asr17,%0\n\t"
"srl %0,28,%0" :
"=&r" (cpuid) : );
return cpuid;
}
#ifndef MODULE
static inline int hard_smp_processor_id(void)
{
......
......@@ -72,7 +72,7 @@ obj-y += dma.o
obj-$(CONFIG_SPARC32_PCI) += pcic.o
obj-$(CONFIG_SMP) += trampoline_$(BITS).o smp_$(BITS).o
obj-$(CONFIG_SPARC32_SMP) += sun4m_smp.o sun4d_smp.o
obj-$(CONFIG_SPARC32_SMP) += sun4m_smp.o sun4d_smp.o leon_smp.o
obj-$(CONFIG_SPARC64_SMP) += hvtramp.o
obj-y += auxio_$(BITS).o
......@@ -87,6 +87,7 @@ obj-$(CONFIG_KGDB) += kgdb_$(BITS).o
obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
CFLAGS_REMOVE_ftrace.o := -pg
obj-$(CONFIG_EARLYFB) += btext.o
obj-$(CONFIG_STACKTRACE) += stacktrace.o
# sparc64 PCI
obj-$(CONFIG_SPARC64_PCI) += pci.o pci_common.o psycho_common.o
......
......@@ -10,7 +10,6 @@
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/miscdevice.h>
#include <linux/smp_lock.h>
#include <linux/pm.h>
#include <linux/of.h>
#include <linux/of_device.h>
......@@ -76,7 +75,6 @@ static inline void apc_free(struct of_device *op)
static int apc_open(struct inode *inode, struct file *f)
{
cycle_kernel_lock();
return 0;
}
......@@ -87,61 +85,46 @@ static int apc_release(struct inode *inode, struct file *f)
static long apc_ioctl(struct file *f, unsigned int cmd, unsigned long __arg)
{
__u8 inarg, __user *arg;
arg = (__u8 __user *) __arg;
lock_kernel();
__u8 inarg, __user *arg = (__u8 __user *) __arg;
switch (cmd) {
case APCIOCGFANCTL:
if (put_user(apc_readb(APC_FANCTL_REG) & APC_REGMASK, arg)) {
unlock_kernel();
if (put_user(apc_readb(APC_FANCTL_REG) & APC_REGMASK, arg))
return -EFAULT;
}
break;
case APCIOCGCPWR:
if (put_user(apc_readb(APC_CPOWER_REG) & APC_REGMASK, arg)) {
unlock_kernel();
if (put_user(apc_readb(APC_CPOWER_REG) & APC_REGMASK, arg))
return -EFAULT;
}
break;
case APCIOCGBPORT:
if (put_user(apc_readb(APC_BPORT_REG) & APC_BPMASK, arg)) {
unlock_kernel();
if (put_user(apc_readb(APC_BPORT_REG) & APC_BPMASK, arg))
return -EFAULT;
}
break;
case APCIOCSFANCTL:
if (get_user(inarg, arg)) {
unlock_kernel();
if (get_user(inarg, arg))
return -EFAULT;
}
apc_writeb(inarg & APC_REGMASK, APC_FANCTL_REG);
break;
case APCIOCSCPWR:
if (get_user(inarg, arg)) {
unlock_kernel();
if (get_user(inarg, arg))
return -EFAULT;
}
apc_writeb(inarg & APC_REGMASK, APC_CPOWER_REG);
break;
case APCIOCSBPORT:
if (get_user(inarg, arg)) {
unlock_kernel();
if (get_user(inarg, arg))
return -EFAULT;
}
apc_writeb(inarg & APC_BPMASK, APC_BPORT_REG);
break;
default:
unlock_kernel();
return -EINVAL;
};
unlock_kernel();
return 0;
}
......
......@@ -28,6 +28,7 @@ void __init auxio_probe(void)
struct resource r;
switch (sparc_cpu_model) {
case sparc_leon:
case sun4d:
case sun4:
return;
......
This diff is collapsed.
......@@ -184,6 +184,17 @@ static const struct manufacturer_info __initconst manufacturer_info[] = {
FPU(3, "Fujitsu or Weitek on-chip FPU"),
FPU(-1, NULL)
}
},{
0xF, /* Aeroflex Gaisler */
.cpu_info = {
CPU(3, "LEON"),
CPU(-1, NULL)
},
.fpu_info = {
FPU(2, "GRFPU"),
FPU(3, "GRFPU-Lite"),
FPU(-1, NULL)
}
},{
0x17,
.cpu_info = {
......
......@@ -400,6 +400,39 @@ linux_trap_ipi15_sun4d:
/* FIXME */
1: b,a 1b
#ifdef CONFIG_SPARC_LEON
.globl smpleon_ticker
/* SMP per-cpu ticker interrupts are handled specially. */
smpleon_ticker:
SAVE_ALL
or %l0, PSR_PIL, %g2
wr %g2, 0x0, %psr
WRITE_PAUSE
wr %g2, PSR_ET, %psr
WRITE_PAUSE
call leon_percpu_timer_interrupt
add %sp, STACKFRAME_SZ, %o0
wr %l0, PSR_ET, %psr
WRITE_PAUSE
RESTORE_ALL
.align 4
.globl linux_trap_ipi15_leon
linux_trap_ipi15_leon:
SAVE_ALL
or %l0, PSR_PIL, %l4
wr %l4, 0x0, %psr
WRITE_PAUSE
wr %l4, PSR_ET, %psr
WRITE_PAUSE
call leon_cross_call_irq
nop
b ret_trap_lockless_ipi
clr %l6
#endif /* CONFIG_SPARC_LEON */
#endif /* CONFIG_SMP */
/* This routine handles illegal instructions and privileged
......
......@@ -811,8 +811,30 @@ found_version:
got_prop:
#ifdef CONFIG_SPARC_LEON
/* no cpu-type check is needed, it is a SPARC-LEON */
#ifdef CONFIG_SMP
ba leon_smp_init
nop
.global leon_smp_init
leon_smp_init:
sethi %hi(boot_cpu_id), %g1 ! master always 0
stb %g0, [%g1 + %lo(boot_cpu_id)]
sethi %hi(boot_cpu_id4), %g1 ! master always 0
stb %g0, [%g1 + %lo(boot_cpu_id4)]
rd %asr17,%g1
srl %g1,28,%g1
cmp %g0,%g1
beq sun4c_continue_boot !continue with master
nop
ba leon_smp_cpu_startup
nop
#else
ba sun4c_continue_boot
nop
#endif
#endif
set cputypval, %o2
ldub [%o2 + 0x4], %l1
......
......@@ -48,8 +48,13 @@
#include <asm/dma.h>
#include <asm/iommu.h>
#include <asm/io-unit.h>
#include <asm/leon.h>
#ifdef CONFIG_SPARC_LEON
#define mmu_inval_dma_area(p, l) leon_flush_dcache_all()
#else
#define mmu_inval_dma_area(p, l) /* Anton pulled it out for 2.4.0-xx */
#endif
static struct resource *_sparc_find_resource(struct resource *r,
unsigned long);
......
......@@ -187,7 +187,7 @@ int show_interrupts(struct seq_file *p, void *v)
for_each_online_cpu(j)
seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
#endif
seq_printf(p, " %9s", irq_desc[i].chip->typename);
seq_printf(p, " %9s", irq_desc[i].chip->name);
seq_printf(p, " %s", action->name);
for (action=action->next; action; action = action->next)
......@@ -484,7 +484,7 @@ static void sun4v_virq_eoi(unsigned int virt_irq)
}
static struct irq_chip sun4u_irq = {
.typename = "sun4u",
.name = "sun4u",
.enable = sun4u_irq_enable,
.disable = sun4u_irq_disable,
.eoi = sun4u_irq_eoi,
......@@ -492,7 +492,7 @@ static struct irq_chip sun4u_irq = {
};
static struct irq_chip sun4v_irq = {
.typename = "sun4v",
.name = "sun4v",
.enable = sun4v_irq_enable,
.disable = sun4v_irq_disable,
.eoi = sun4v_irq_eoi,
......@@ -500,7 +500,7 @@ static struct irq_chip sun4v_irq = {
};
static struct irq_chip sun4v_virq = {
.typename = "vsun4v",
.name = "vsun4v",
.enable = sun4v_virq_enable,
.disable = sun4v_virq_disable,
.eoi = sun4v_virq_eoi,
......
......@@ -12,11 +12,14 @@
#include <linux/of_platform.h>
#include <linux/interrupt.h>
#include <linux/of_device.h>
#include <asm/oplib.h>
#include <asm/timer.h>
#include <asm/prom.h>
#include <asm/leon.h>
#include <asm/leon_amba.h>
#include <asm/traps.h>
#include <asm/cacheflush.h>
#include "prom.h"
#include "irq.h"
......@@ -115,6 +118,21 @@ void __init leon_init_timers(irq_handler_t counter_fn)
(((1000000 / 100) - 1)));
LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].ctrl, 0);
#ifdef CONFIG_SMP
leon_percpu_timer_dev[0].start = (int)leon3_gptimer_regs;
leon_percpu_timer_dev[0].irq = leon3_gptimer_irq+1;
if (!(LEON3_BYPASS_LOAD_PA(&leon3_gptimer_regs->config) &
(1<<LEON3_GPTIMER_SEPIRQ))) {
prom_printf("irq timer not configured with seperate irqs \n");
BUG();
}
LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].val, 0);
LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].rld, (((1000000/100) - 1)));
LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].ctrl, 0);
# endif
} else {
printk(KERN_ERR "No Timer/irqctrl found\n");
BUG();
......@@ -130,11 +148,41 @@ void __init leon_init_timers(irq_handler_t counter_fn)
prom_halt();
}
# ifdef CONFIG_SMP
{
unsigned long flags;
struct tt_entry *trap_table = &sparc_ttable[SP_TRAP_IRQ1 + (leon_percpu_timer_dev[0].irq - 1)];
/* For SMP we use the level 14 ticker, however the bootup code
* has copied the firmwares level 14 vector into boot cpu's
* trap table, we must fix this now or we get squashed.
*/
local_irq_save(flags);
patchme_maybe_smp_msg[0] = 0x01000000; /* NOP out the branch */
/* Adjust so that we jump directly to smpleon_ticker */
trap_table->inst_three += smpleon_ticker - real_irq_entry;
local_flush_cache_all();
local_irq_restore(flags);
}
# endif
if (leon3_gptimer_regs) {
LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].ctrl,
LEON3_GPTIMER_EN |
LEON3_GPTIMER_RL |
LEON3_GPTIMER_LD | LEON3_GPTIMER_IRQEN);
#ifdef CONFIG_SMP
LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].ctrl,
LEON3_GPTIMER_EN |
LEON3_GPTIMER_RL |
LEON3_GPTIMER_LD |
LEON3_GPTIMER_IRQEN);
#endif
}
}
......@@ -175,6 +223,42 @@ void __init leon_node_init(struct device_node *dp, struct device_node ***nextp)
}
}
#ifdef CONFIG_SMP
void leon_set_cpu_int(int cpu, int level)
{
unsigned long mask;
mask = get_irqmask(level);
LEON3_BYPASS_STORE_PA(&leon3_irqctrl_regs->force[cpu], mask);
}
static void leon_clear_ipi(int cpu, int level)
{
unsigned long mask;
mask = get_irqmask(level);
LEON3_BYPASS_STORE_PA(&leon3_irqctrl_regs->force[cpu], mask<<16);
}
static void leon_set_udt(int cpu)
{
}
void leon_clear_profile_irq(int cpu)
{
}
void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu)
{
unsigned long mask, flags, *addr;
mask = get_irqmask(irq_nr);
local_irq_save(flags);
addr = (unsigned long *)&(leon3_irqctrl_regs->mask[cpu]);
LEON3_BYPASS_STORE_PA(addr, (LEON3_BYPASS_LOAD_PA(addr) | (mask)));
local_irq_restore(flags);
}
#endif
void __init leon_init_IRQ(void)
{
sparc_init_timers = leon_init_timers;
......
This diff is collapsed.
......@@ -112,7 +112,7 @@ static void free_msi(struct pci_pbm_info *pbm, int msi_num)
}
static struct irq_chip msi_irq = {
.typename = "PCI-MSI",
.name = "PCI-MSI",
.mask = mask_msi_irq,
.unmask = unmask_msi_irq,
.enable = unmask_msi_irq,
......
......@@ -46,6 +46,7 @@
#include <asm/setup.h>
#include <asm/mmu.h>
#include <asm/ns87303.h>
#include <asm/btext.h>
#ifdef CONFIG_IP_PNP
#include <net/ipconfig.h>
......@@ -286,6 +287,9 @@ void __init setup_arch(char **cmdline_p)
parse_early_param();
boot_flags_init(*cmdline_p);
#ifdef CONFIG_EARLYFB
if (btext_find_display())
#endif
register_console(&prom_early_console);
if (tlb_type == hypervisor)
......
......@@ -32,6 +32,7 @@
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
#include <asm/cpudata.h>
#include <asm/leon.h>
#include "irq.h"
......@@ -96,6 +97,9 @@ void __init smp_cpus_done(unsigned int max_cpus)
case sun4d:
smp4d_smp_done();
break;
case sparc_leon:
leon_smp_done();
break;
case sun4e:
printk("SUN4E\n");
BUG();
......@@ -306,6 +310,9 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
case sun4d:
smp4d_boot_cpus();
break;
case sparc_leon:
leon_boot_cpus();
break;
case sun4e:
printk("SUN4E\n");
BUG();
......@@ -376,6 +383,9 @@ int __cpuinit __cpu_up(unsigned int cpu)
case sun4d:
ret = smp4d_boot_one_cpu(cpu);
break;
case sparc_leon:
ret = leon_boot_one_cpu(cpu);
break;
case sun4e:
printk("SUN4E\n");
BUG();
......
......@@ -26,11 +26,6 @@
#include <linux/nfs_fs.h>
#include <linux/quota.h>
#include <linux/module.h>
#include <linux/sunrpc/svc.h>
#include <linux/nfsd/nfsd.h>
#include <linux/nfsd/cache.h>
#include <linux/nfsd/xdr.h>
#include <linux/nfsd/syscall.h>
#include <linux/poll.h>
#include <linux/personality.h>
#include <linux/stat.h>
......
......@@ -210,9 +210,6 @@ static void __init sbus_time_init(void)
btfixup();
sparc_init_timers(timer_interrupt);
/* Now that OBP ticker has been silenced, it is safe to enable IRQ. */
local_irq_enable();
}
void __init time_init(void)
......
......@@ -15,7 +15,7 @@
#include <asm/contregs.h>
#include <asm/thread_info.h>
.globl sun4m_cpu_startup, __smp4m_processor_id
.globl sun4m_cpu_startup, __smp4m_processor_id, __leon_processor_id
.globl sun4d_cpu_startup, __smp4d_processor_id
__CPUINIT
......@@ -106,6 +106,12 @@ __smp4d_processor_id:
retl
mov %g1, %o7
__leon_processor_id:
rd %asr17,%g2
srl %g2,28,%g2
retl
mov %g1, %o7
/* CPUID in bootbus can be found at PA 0xff0140000 */
#define SUN4D_BOOTBUS_CPUID 0xf0140000
......@@ -160,3 +166,64 @@ sun4d_cpu_startup:
nop
b,a smp_do_cpu_idle
#ifdef CONFIG_SPARC_LEON
__CPUINIT
.align 4
.global leon_smp_cpu_startup, smp_penguin_ctable
leon_smp_cpu_startup:
set smp_penguin_ctable,%g1
ld [%g1+4],%g1
srl %g1,4,%g1
set 0x00000100,%g5 /* SRMMU_CTXTBL_PTR */
sta %g1, [%g5] ASI_M_MMUREGS
/* Set up a sane %psr -- PIL<0xf> S<0x1> PS<0x1> CWP<0x0> */
set (PSR_PIL | PSR_S | PSR_PS), %g1
wr %g1, 0x0, %psr ! traps off though
WRITE_PAUSE
/* Our %wim is one behind CWP */
mov 2, %g1
wr %g1, 0x0, %wim
WRITE_PAUSE
/* Set tbr - we use just one trap table. */
set trapbase, %g1
wr %g1, 0x0, %tbr
WRITE_PAUSE
/* Get our CPU id */
rd %asr17,%g3
/* Give ourselves a stack and curptr. */
set current_set, %g5
srl %g3, 28, %g4
sll %g4, 2, %g4
ld [%g5 + %g4], %g6
sethi %hi(THREAD_SIZE - STACKFRAME_SZ), %sp
or %sp, %lo(THREAD_SIZE - STACKFRAME_SZ), %sp
add %g6, %sp, %sp
/* Turn on traps (PSR_ET). */
rd %psr, %g1
wr %g1, PSR_ET, %psr ! traps on
WRITE_PAUSE
/* Init our caches, etc. */
set poke_srmmu, %g5
ld [%g5], %g5
call %g5
nop
/* Start this processor. */
call leon_callin
nop
b,a smp_do_cpu_idle
#endif
......@@ -1990,7 +1990,7 @@ void __init poke_leonsparc(void)
void __init init_leon(void)
{
srmmu_name = "Leon";
srmmu_name = "LEON";
BTFIXUPSET_CALL(flush_cache_all, leon_flush_cache_all,
BTFIXUPCALL_NORM);
......@@ -2037,8 +2037,6 @@ static void __init get_srmmu_type(void)
/* First, check for sparc-leon. */
if (sparc_cpu_model == sparc_leon) {
psr_typ = 0xf; /* hardcoded ids for older models/simulators */
psr_vers = 2;
init_leon();
return;
}
......@@ -2301,7 +2299,8 @@ void __init ld_mmu_srmmu(void)
BTFIXUPSET_CALL(flush_cache_mm, smp_flush_cache_mm, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(flush_cache_range, smp_flush_cache_range, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(flush_cache_page, smp_flush_cache_page, BTFIXUPCALL_NORM);
if (sparc_cpu_model != sun4d) {
if (sparc_cpu_model != sun4d &&
sparc_cpu_model != sparc_leon) {
BTFIXUPSET_CALL(flush_tlb_all, smp_flush_tlb_all, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(flush_tlb_mm, smp_flush_tlb_mm, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(flush_tlb_range, smp_flush_tlb_range, BTFIXUPCALL_NORM);
......@@ -2330,6 +2329,8 @@ void __init ld_mmu_srmmu(void)
#ifdef CONFIG_SMP
if (sparc_cpu_model == sun4d)
sun4d_init_smp();
else if (sparc_cpu_model == sparc_leon)
leon_init_smp();
else
sun4m_init_smp();
#endif
......
......@@ -1477,4 +1477,17 @@ config SERIAL_BCM63XX_CONSOLE
If you have enabled the serial port on the bcm63xx CPU
you can make it the console by answering Y to this option.
config SERIAL_GRLIB_GAISLER_APBUART
tristate "GRLIB APBUART serial support"
depends on OF
---help---
Add support for the GRLIB APBUART serial port.
config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE
bool "Console on GRLIB APBUART serial port"
depends on SERIAL_GRLIB_GAISLER_APBUART=y
select SERIAL_CORE_CONSOLE
help
Support for running a console on the GRLIB APBUART
endmenu
......@@ -81,3 +81,4 @@ obj-$(CONFIG_SERIAL_KS8695) += serial_ks8695.o
obj-$(CONFIG_KGDB_SERIAL_CONSOLE) += kgdboc.o
obj-$(CONFIG_SERIAL_QE) += ucc_uart.o
obj-$(CONFIG_SERIAL_TIMBERDALE) += timbuart.o
obj-$(CONFIG_SERIAL_GRLIB_GAISLER_APBUART) += apbuart.o
This diff is collapsed.
#ifndef __GRLIB_APBUART_H__
#define __GRLIB_APBUART_H__
#include <asm/io.h>
#define UART_NR 8
static int grlib_apbuart_port_nr;
struct grlib_apbuart_regs_map {
u32 data;
u32 status;
u32 ctrl;
u32 scaler;
};
struct amba_prom_registers {
unsigned int phys_addr;
unsigned int reg_size;
};
/*
* The following defines the bits in the APBUART Status Registers.
*/
#define UART_STATUS_DR 0x00000001 /* Data Ready */
#define UART_STATUS_TSE 0x00000002 /* TX Send Register Empty */
#define UART_STATUS_THE 0x00000004 /* TX Hold Register Empty */
#define UART_STATUS_BR 0x00000008 /* Break Error */
#define UART_STATUS_OE 0x00000010 /* RX Overrun Error */
#define UART_STATUS_PE 0x00000020 /* RX Parity Error */
#define UART_STATUS_FE 0x00000040 /* RX Framing Error */
#define UART_STATUS_ERR 0x00000078 /* Error Mask */
/*
* The following defines the bits in the APBUART Ctrl Registers.
*/
#define UART_CTRL_RE 0x00000001 /* Receiver enable */
#define UART_CTRL_TE 0x00000002 /* Transmitter enable */
#define UART_CTRL_RI 0x00000004 /* Receiver interrupt enable */
#define UART_CTRL_TI 0x00000008 /* Transmitter irq */
#define UART_CTRL_PS 0x00000010 /* Parity select */
#define UART_CTRL_PE 0x00000020 /* Parity enable */
#define UART_CTRL_FL 0x00000040 /* Flow control enable */
#define UART_CTRL_LB 0x00000080 /* Loopback enable */
#define APBBASE(port) ((struct grlib_apbuart_regs_map *)((port)->membase))
#define APBBASE_DATA_P(port) (&(APBBASE(port)->data))
#define APBBASE_STATUS_P(port) (&(APBBASE(port)->status))
#define APBBASE_CTRL_P(port) (&(APBBASE(port)->ctrl))
#define APBBASE_SCALAR_P(port) (&(APBBASE(port)->scaler))
#define UART_GET_CHAR(port) (__raw_readl(APBBASE_DATA_P(port)))
#define UART_PUT_CHAR(port, v) (__raw_writel(v, APBBASE_DATA_P(port)))
#define UART_GET_STATUS(port) (__raw_readl(APBBASE_STATUS_P(port)))
#define UART_PUT_STATUS(port, v)(__raw_writel(v, APBBASE_STATUS_P(port)))
#define UART_GET_CTRL(port) (__raw_readl(APBBASE_CTRL_P(port)))
#define UART_PUT_CTRL(port, v) (__raw_writel(v, APBBASE_CTRL_P(port)))
#define UART_GET_SCAL(port) (__raw_readl(APBBASE_SCALAR_P(port)))
#define UART_PUT_SCAL(port, v) (__raw_writel(v, APBBASE_SCALAR_P(port)))
#define UART_RX_DATA(s) (((s) & UART_STATUS_DR) != 0)
#define UART_TX_READY(s) (((s) & UART_STATUS_THE) != 0)
#endif /* __GRLIB_APBUART_H__ */
......@@ -10,7 +10,6 @@
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/miscdevice.h>
#include <linux/smp_lock.h>
#include <linux/watchdog.h>
#include <linux/of.h>
#include <linux/of_device.h>
......@@ -75,7 +74,6 @@ static void riowd_writereg(struct riowd *p, u8 val, int index)
static int riowd_open(struct inode *inode, struct file *filp)
{
cycle_kernel_lock();
nonseekable_open(inode, filp);
return 0;
}
......@@ -194,6 +192,8 @@ static int __devinit riowd_probe(struct of_device *op,
printk(KERN_ERR PFX "Cannot map registers.\n");
goto out_free;
}
/* Make miscdev useable right away */
riowd_device = p;
err = misc_register(&riowd_miscdev);
if (err) {
......@@ -205,10 +205,10 @@ static int __devinit riowd_probe(struct of_device *op,
"regs at %p\n", riowd_timeout, p->regs);
dev_set_drvdata(&op->dev, p);
riowd_device = p;
return 0;
out_iounmap:
riowd_device = NULL;
of_iounmap(&op->resource[0], p->regs, 2);
out_free:
......
......@@ -179,6 +179,9 @@
/* BCM63xx family SoCs */
#define PORT_BCM63XX 89
/* Aeroflex Gaisler GRLIB APBUART */
#define PORT_APBUART 90
#ifdef __KERNEL__
#include <linux/compiler.h>
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment