- EISA support for non PCI RMs (RM200 and RM400-xxx). The major part
is the splitting of the EISA and onboard ISA of the RM200, which
makes the EISA bus on the RM200 look like on other RMs.
- 64bit kernel support
- system type detection is now common for big and little endian (thanks
Ralf)
- moved sniprom code to arch/mips/fw
- added call_o32 function to arch/mips/fw/lib, which uses a private
stack for calling prom functions
- fix problem with isa interrupts, which makes using pit clockevent
possible
Signed-off-by: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
---
This is 2.6.25 material and replaces [PATCH] SNI_RM: EISA support for
A20R/RM200
arch/mips/Kconfig | 4 +
arch/mips/Makefile | 2 +
arch/mips/fw/lib/Makefile | 5 +
arch/mips/fw/lib/call_o32.S | 97 +++++++++++++
arch/mips/fw/sni/Makefile | 5 +
arch/mips/fw/sni/sniprom.c | 152 ++++++++++++++++++++
arch/mips/sni/Makefile | 2 +-
arch/mips/sni/a20r.c | 13 ++-
arch/mips/sni/eisa.c | 52 +++++++
arch/mips/sni/irq.c | 4 +-
arch/mips/sni/rm200.c | 326 +++++++++++++++++++++++++++++++++++++++++--
arch/mips/sni/setup.c | 143 +++++++++++++++++++-
arch/mips/sni/sniprom.c | 251 ---------------------------------
arch/mips/sni/time.c | 1 +
include/asm-mips/bootinfo.h | 1 +
include/asm-mips/mipsprom.h | 2 +
include/asm-mips/sni.h | 159 ++++++++++++---------
18 files changed, 1042 insertions(+), 338 deletions(-)
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 291d368..515fcac 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -573,6 +573,7 @@ config SNI_RM
bool "SNI RM200/300/400"
select ARC if CPU_LITTLE_ENDIAN
select ARC32 if CPU_LITTLE_ENDIAN
+ select SNIPROM if CPU_BIG_ENDIAN
select ARCH_MAY_HAVE_PC_FDC
select BOOT_ELF32
select CEVT_R4K
@@ -957,6 +959,9 @@ config SERIAL_RM9000
config ARC32
bool
+config SNIPROM
+ bool
+
config BOOT_ELF32
bool
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index a1f8d8b..f2ea18b 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -152,6 +152,8 @@ endif
#
libs-$(CONFIG_ARC) += arch/mips/fw/arc/
libs-$(CONFIG_CFE) += arch/mips/fw/cfe/
+libs-$(CONFIG_SNIPROM) += arch/mips/fw/sni/
+libs-y += arch/mips/fw/lib/
libs-$(CONFIG_SIBYTE_CFE) += arch/mips/sibyte/cfe/
#
diff --git a/arch/mips/fw/lib/Makefile b/arch/mips/fw/lib/Makefile
new file mode 100644
index 0000000..84befc9
--- /dev/null
+++ b/arch/mips/fw/lib/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for generic prom monitor library routines under Linux.
+#
+
+lib-$(CONFIG_64BIT) += call_o32.o
diff --git a/arch/mips/fw/lib/call_o32.S b/arch/mips/fw/lib/call_o32.S
new file mode 100644
index 0000000..bdf7d1d
--- /dev/null
+++ b/arch/mips/fw/lib/call_o32.S
@@ -0,0 +1,97 @@
+/*
+ * arch/mips/dec/prom/call_o32.S
+ *
+ * O32 interface for the 64 (or N32) ABI.
+ *
+ * Copyright (C) 2002 Maciej W. Rozycki
+ *
+ * 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 <asm/asm.h>
+#include <asm/regdef.h>
+
+/* Maximum number of arguments supported. Must be even! */
+#define O32_ARGC 32
+/* Number of static registers we save. */
+#define O32_STATC 11
+/* Frame size for static register */
+#define O32_FRAMESZ (SZREG * O32_STATC)
+/* Frame size on new stack */
+#define O32_FRAMESZ_NEW (SZREG + 4 * O32_ARGC)
+
+ .text
+
+/*
+ * O32 function call dispatcher, for interfacing 32-bit ROM routines.
+ *
+ * The standard 64 (N32) calling sequence is supported, with a0
+ * holding a function pointer, a1 a new stack pointer, a2-a7 -- its
+ * first six arguments and the stack -- remaining ones (up to O32_ARGC,
+ * including a2-a7). Static registers, gp and fp are preserved, v0 holds
+ * a result. This code relies on the called o32 function for sp and ra
+ * restoration and this dispatcher has to be placed in a KSEGx (or KUSEG)
+ * address space. Any pointers passed have to point to addresses within
+ * one of these spaces as well.
+ */
+NESTED(call_o32, O32_FRAMESZ, ra)
+ REG_SUBU sp,O32_FRAMESZ
+
+ REG_S ra,O32_FRAMESZ-1*SZREG(sp)
+ REG_S fp,O32_FRAMESZ-2*SZREG(sp)
+ REG_S gp,O32_FRAMESZ-3*SZREG(sp)
+ REG_S s7,O32_FRAMESZ-4*SZREG(sp)
+ REG_S s6,O32_FRAMESZ-5*SZREG(sp)
+ REG_S s5,O32_FRAMESZ-6*SZREG(sp)
+ REG_S s4,O32_FRAMESZ-7*SZREG(sp)
+ REG_S s3,O32_FRAMESZ-8*SZREG(sp)
+ REG_S s2,O32_FRAMESZ-9*SZREG(sp)
+ REG_S s1,O32_FRAMESZ-10*SZREG(sp)
+ REG_S s0,O32_FRAMESZ-11*SZREG(sp)
+
+ move jp,a0
+ REG_SUBU s0,a1,O32_FRAMESZ_NEW
+ REG_S sp,O32_FRAMESZ_NEW-1*SZREG(s0)
+
+ sll a0,a2,zero
+ sll a1,a3,zero
+ sll a2,a4,zero
+ sll a3,a5,zero
+ sw a6,0x10(s0)
+ sw a7,0x14(s0)
+
+ PTR_LA t0,O32_FRAMESZ(sp)
+ PTR_LA t1,0x18(s0)
+ li t2,O32_ARGC-6
+1:
+ lw t3,(t0)
+ REG_ADDU t0,SZREG
+ sw t3,(t1)
+ REG_SUBU t2,1
+ REG_ADDU t1,4
+ bnez t2,1b
+
+ move sp,s0
+
+ jalr jp
+
+ REG_L sp,O32_FRAMESZ_NEW-1*SZREG(sp)
+
+ REG_L s0,O32_FRAMESZ-11*SZREG(sp)
+ REG_L s1,O32_FRAMESZ-10*SZREG(sp)
+ REG_L s2,O32_FRAMESZ-9*SZREG(sp)
+ REG_L s3,O32_FRAMESZ-8*SZREG(sp)
+ REG_L s4,O32_FRAMESZ-7*SZREG(sp)
+ REG_L s5,O32_FRAMESZ-6*SZREG(sp)
+ REG_L s6,O32_FRAMESZ-5*SZREG(sp)
+ REG_L s7,O32_FRAMESZ-4*SZREG(sp)
+ REG_L gp,O32_FRAMESZ-3*SZREG(sp)
+ REG_L fp,O32_FRAMESZ-2*SZREG(sp)
+ REG_L ra,O32_FRAMESZ-1*SZREG(sp)
+
+ REG_ADDU sp,O32_FRAMESZ
+ jr ra
+END(call_o32)
diff --git a/arch/mips/fw/sni/Makefile b/arch/mips/fw/sni/Makefile
new file mode 100644
index 0000000..d9740a3
--- /dev/null
+++ b/arch/mips/fw/sni/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the SNI prom monitor routines under Linux.
+#
+
+lib-$(CONFIG_SNIPROM) += sniprom.o
diff --git a/arch/mips/fw/sni/sniprom.c b/arch/mips/fw/sni/sniprom.c
new file mode 100644
index 0000000..aec5dc0
--- /dev/null
+++ b/arch/mips/fw/sni/sniprom.c
@@ -0,0 +1,152 @@
+/*
+ * Big Endian PROM code for SNI RM machines
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2005-2006 Florian Lohoff (flo@xxxxxxxxxx)
+ * Copyright (C) 2005-2006 Thomas Bogendoerfer (tsbogend@xxxxxxxxxxxxxxxx)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/console.h>
+
+#include <asm/addrspace.h>
+#include <asm/sni.h>
+#include <asm/mipsprom.h>
+#include <asm/mipsregs.h>
+#include <asm/bootinfo.h>
+
+/* special SNI prom calls */
+/*
+ * This does not exist in all proms - SINIX compares
+ * the prom env variable "version" against "2.0008"
+ * or greater. If lesser it tries to probe interesting
+ * registers
+ */
+#define PROM_GET_MEMCONF 58
+#define PROM_GET_HWCONF 61
+
+#define PROM_VEC (u64 *)CKSEG1ADDR(0x1fc00000)
+#define PROM_ENTRY(x) (PROM_VEC + (x))
+
+#define ___prom_putchar ((int *(*)(int))PROM_ENTRY(PROM_PUTCHAR))
+#define ___prom_getenv ((char *(*)(char *))PROM_ENTRY(PROM_GETENV))
+#define ___prom_get_memconf ((void (*)(void *))PROM_ENTRY(PROM_GET_MEMCONF))
+#define ___prom_get_hwconf ((u32 (*)(void))PROM_ENTRY(PROM_GET_HWCONF))
+
+#ifdef CONFIG_64BIT
+
+static u8 o32_stk[16384];
+#define O32_STK &o32_stk[sizeof(o32_stk)]
+
+#define __PROM_O32(fun, arg) fun arg __asm__(#fun); \
+ __asm__(#fun " = call_o32")
+
+int __PROM_O32(__prom_putchar, (int *(*)(int), void *, int));
+char *__PROM_O32(__prom_getenv, (char *(*)(char *), void *, char *));
+void __PROM_O32(__prom_get_memconf, (void (*)(void *), void *, void *));
+u32 __PROM_O32(__prom_get_hwconf, (u32 (*)(void), void *));
+
+#define _prom_putchar(x) __prom_putchar(___prom_putchar, O32_STK, x)
+#define _prom_getenv(x) __prom_getenv(___prom_getenv, O32_STK, x)
+#define _prom_get_memconf(x) __prom_get_memconf(___prom_get_memconf, O32_STK, x)
+#define _prom_get_hwconf() __prom_get_hwconf(___prom_get_hwconf, O32_STK)
+
+#else
+#define _prom_putchar(x) ___prom_putchar(x)
+#define _prom_getenv(x) ___prom_getenv(x)
+#define _prom_get_memconf(x) ___prom_get_memconf(x)
+#define _prom_get_hwconf(x) ___prom_get_hwconf(x)
+#endif
+
+void prom_putchar(char c)
+{
+ _prom_putchar(c);
+}
+
+
+char *prom_getenv(char *s)
+{
+ return _prom_getenv(s);
+}
+
+void *prom_get_hwconf(void)
+{
+ u32 hwconf = _prom_get_hwconf();
+
+ if (hwconf == 0xffffffff)
+ return NULL;
+
+ return (void *)CKSEG1ADDR(hwconf);
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
+/*
+ * /proc/cpuinfo system type
+ *
+ */
+char *system_type = "Unknown";
+const char *get_system_type(void)
+{
+ return system_type;
+}
+
+static void __init sni_mem_init(void)
+{
+ int i, memsize;
+ struct membank {
+ u32 size;
+ u32 base;
+ u32 size2;
+ u32 pad1;
+ u32 pad2;
+ } memconf[8];
+ int brd_type = *(unsigned char *)SNI_IDPROM_BRDTYPE;
+
+
+ /* MemSIZE from prom in 16MByte chunks */
+ memsize = *((unsigned char *) SNI_IDPROM_MEMSIZE) * 16;
+
+ pr_debug("IDProm memsize: %u MByte\n", memsize);
+
+ /* get memory bank layout from prom */
+ _prom_get_memconf(&memconf);
+
+ pr_debug("prom_get_mem_conf memory configuration:\n");
+ for (i = 0; i < 8 && memconf[i].size; i++) {
+ if (brd_type == SNI_BRD_PCI_TOWER ||
+ brd_type == SNI_BRD_PCI_TOWER_CPLUS) {
+ if (memconf[i].base >= 0x20000000 &&
+ memconf[i].base < 0x30000000)
+ memconf[i].base -= 0x20000000;
+ }
+ pr_debug("Bank%d: %08x @ %08x\n", i,
+ memconf[i].size, memconf[i].base);
+ add_memory_region(memconf[i].base, memconf[i].size,
+ BOOT_MEM_RAM);
+ }
+}
+
+void __init prom_init(void)
+{
+ int argc = fw_arg0;
+ u32 *argv = (u32 *)CKSEG0ADDR(fw_arg1);
+ int i;
+
+ sni_mem_init();
+
+ /* copy prom cmdline parameters to kernel cmdline */
+ for (i = 1; i < argc; i++) {
+ strcat(arcs_cmdline, (char *)CKSEG0ADDR(argv[i]));
+ if (i < (argc - 1))
+ strcat(arcs_cmdline, " ");
+ }
+}
+
diff --git a/arch/mips/sni/Makefile b/arch/mips/sni/Makefile
index 3a99cd6..a7dbeeb 100644
--- a/arch/mips/sni/Makefile
+++ b/arch/mips/sni/Makefile
@@ -3,6 +3,6 @@
#
obj-y += irq.o reset.o setup.o a20r.o rm200.o pcimt.o pcit.o time.o
-obj-$(CONFIG_CPU_BIG_ENDIAN) += sniprom.o
+obj-$(CONFIG_EISA) += eisa.o
EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/sni/a20r.c b/arch/mips/sni/a20r.c
index b746075..3f8cf5e 100644
--- a/arch/mips/sni/a20r.c
+++ b/arch/mips/sni/a20r.c
@@ -117,10 +117,19 @@ static struct resource sc26xx_rsrc[] = {
}
};
+static unsigned int sc26xx_data[2] = {
+ /* DTR | RTS | DSR | CTS | DCD | RI */
+ (8 << 0) | (4 << 4) | (6 << 8) | (0 << 12) | (6 << 16) | (0 << 20),
+ (3 << 0) | (2 << 4) | (1 << 8) | (2 << 12) | (3 << 16) | (4 << 20)
+};
+
static struct platform_device sc26xx_pdev = {
.name = "SC26xx",
.num_resources = ARRAY_SIZE(sc26xx_rsrc),
- .resource = sc26xx_rsrc
+ .resource = sc26xx_rsrc,
+ .dev = {
+ .platform_data = sc26xx_data,
+ }
};
static u32 a20r_ack_hwint(void)
@@ -231,9 +240,9 @@ static int __init snirm_a20r_setup_devinit(void)
platform_device_register(&sc26xx_pdev);
platform_device_register(&a20r_serial8250_device);
platform_device_register(&a20r_ds1216_device);
+ sni_eisa_root_init();
break;
}
-
return 0;
}
diff --git a/arch/mips/sni/eisa.c b/arch/mips/sni/eisa.c
new file mode 100644
index 0000000..2fd2412
--- /dev/null
+++ b/arch/mips/sni/eisa.c
@@ -0,0 +1,52 @@
+/*
+ * Virtual EISA root driver.
+ * Acts as a placeholder if we don't have a proper EISA bridge.
+ *
+ * (C) 2003 Marc Zyngier <maz@xxxxxxxxxxxxxxxxxxx>
+ * modified for SNI usage by Thomas Bogendoerfer
+ *
+ * This code is released under the GPL version 2.
+ */
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/eisa.h>
+#include <linux/init.h>
+
+/* The default EISA device parent (virtual root device).
+ * Now use a platform device, since that's the obvious choice. */
+
+static struct platform_device eisa_root_dev = {
+ .name = "eisa",
+ .id = 0,
+};
+
+static struct eisa_root_device eisa_bus_root = {
+ .dev = &eisa_root_dev.dev,
+ .bus_base_addr = 0,
+ .res = &ioport_resource,
+ .slots = EISA_MAX_SLOTS,
+ .dma_mask = 0xffffffff,
+ .force_probe = 1,
+};
+
+int __init sni_eisa_root_init(void)
+{
+ int r;
+
+ r = platform_device_register(&eisa_root_dev);
+ if (!r)
+ return r;
+
+ eisa_root_dev.dev.driver_data = &eisa_bus_root;
+
+ if (eisa_root_register(&eisa_bus_root)) {
+ /* A real bridge may have been registered before
+ * us. So quietly unregister. */
+ platform_device_unregister(&eisa_root_dev);
+ return -1;
+ }
+ return 0;
+}
+
+
diff --git a/arch/mips/sni/irq.c b/arch/mips/sni/irq.c
index 9ccffdf..e8e72bb 100644
--- a/arch/mips/sni/irq.c
+++ b/arch/mips/sni/irq.c
@@ -35,14 +35,14 @@ static irqreturn_t sni_isa_irq_handler(int dummy, void *p)
if (unlikely(irq < 0))
return IRQ_NONE;
- do_IRQ(irq);
+ generic_handle_irq(irq);
return IRQ_HANDLED;
}
struct irqaction sni_isa_irq = {
.handler = sni_isa_irq_handler,
.name = "ISA",
- .flags = IRQF_SHARED
+ .flags = IRQF_SHARED | IRQF_DISABLED
};
/*
diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c
index 67b061e..5310aa7 100644
--- a/arch/mips/sni/rm200.c
+++ b/arch/mips/sni/rm200.c
@@ -5,30 +5,36 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 2006 Thomas Bogendoerfer (tsbogend@xxxxxxxxxxxxxxxx)
+ * Copyright (C) 2006,2007 Thomas Bogendoerfer (tsbogend@xxxxxxxxxxxxxxxx)
+ *
+ * i8259 parts ripped out of arch/mips/kernel/i8259.c
*/
+#include <linux/delay.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
+#include <linux/io.h>
#include <asm/sni.h>
#include <asm/time.h>
#include <asm/irq_cpu.h>
-#define PORT(_base,_irq) \
+#define RM200_I8259A_IRQ_BASE 32
+
+#define MEMPORT(_base,_irq) \
{ \
- .iobase = _base, \
+ .mapbase = _base, \
.irq = _irq, \
.uartclk = 1843200, \
- .iotype = UPIO_PORT, \
- .flags = UPF_BOOT_AUTOCONF, \
+ .iotype = UPIO_MEM, \
+ .flags = UPF_BOOT_AUTOCONF|UPF_IOREMAP, \
}
static struct plat_serial8250_port rm200_data[] = {
- PORT(0x3f8, 4),
- PORT(0x2f8, 3),
+ MEMPORT(0x160003f8, RM200_I8259A_IRQ_BASE + 4),
+ MEMPORT(0x160002f8, RM200_I8259A_IRQ_BASE + 3),
{ },
};
@@ -112,15 +118,311 @@ static int __init snirm_setup_devinit(void)
platform_device_register(&rm200_ds1216_device);
platform_device_register(&snirm_82596_rm200_pdev);
platform_device_register(&snirm_53c710_rm200_pdev);
+ sni_eisa_root_init();
}
return 0;
}
device_initcall(snirm_setup_devinit);
+/*
+ * RM200 has an ISA and an EISA bus. The iSA bus is only used
+ * for onboard devices and also has twi i8259 PICs. Since these
+ * PICs are no accessible via inb/outb the following code uses
+ * readb/writeb to access them
+ */
+
+DEFINE_SPINLOCK(sni_rm200_i8259A_lock);
+#define PIC_CMD 0x00
+#define PIC_IMR 0x01
+#define PIC_ISR PIC_CMD
+#define PIC_POLL PIC_ISR
+#define PIC_OCW3 PIC_ISR
+
+/* i8259A PIC related value */
+#define PIC_CASCADE_IR 2
+#define MASTER_ICW4_DEFAULT 0x01
+#define SLAVE_ICW4_DEFAULT 0x01
+
+/*
+ * This contains the irq mask for both 8259A irq controllers,
+ */
+static unsigned int rm200_cached_irq_mask = 0xffff;
+static __iomem u8 *rm200_pic_master;
+static __iomem u8 *rm200_pic_slave;
+
+#define cached_master_mask (rm200_cached_irq_mask)
+#define cached_slave_mask (rm200_cached_irq_mask >> 8)
+
+static void sni_rm200_disable_8259A_irq(unsigned int irq)
+{
+ unsigned int mask;
+ unsigned long flags;
+
+ irq -= RM200_I8259A_IRQ_BASE;
+ mask = 1 << irq;
+ spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
+ rm200_cached_irq_mask |= mask;
+ if (irq & 8)
+ writeb(cached_slave_mask, rm200_pic_slave + PIC_IMR);
+ else
+ writeb(cached_master_mask, rm200_pic_master + PIC_IMR);
+ spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
+}
+
+static void sni_rm200_enable_8259A_irq(unsigned int irq)
+{
+ unsigned int mask;
+ unsigned long flags;
+
+ irq -= RM200_I8259A_IRQ_BASE;
+ mask = ~(1 << irq);
+ spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
+ rm200_cached_irq_mask &= mask;
+ if (irq & 8)
+ writeb(cached_slave_mask, rm200_pic_slave + PIC_IMR);
+ else
+ writeb(cached_master_mask, rm200_pic_master + PIC_IMR);
+ spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
+}
+
+static inline int sni_rm200_i8259A_irq_real(unsigned int irq)
+{
+ int value;
+ int irqmask = 1 << irq;
+
+ if (irq < 8) {
+ writeb(0x0B, rm200_pic_master + PIC_CMD);
+ value = readb(rm200_pic_master + PIC_CMD) & irqmask;
+ writeb(0x0A, rm200_pic_master + PIC_CMD);
+ return value;
+ }
+ writeb(0x0B, rm200_pic_slave + PIC_CMD); /* ISR register */
+ value = readb(rm200_pic_slave + PIC_CMD) & (irqmask >> 8);
+ writeb(0x0A, rm200_pic_slave + PIC_CMD);
+ return value;
+}
+
+/*
+ * Careful! The 8259A is a fragile beast, it pretty
+ * much _has_ to be done exactly like this (mask it
+ * first, _then_ send the EOI, and the order of EOI
+ * to the two 8259s is important!
+ */
+void sni_rm200_mask_and_ack_8259A(unsigned int irq)
+{
+ unsigned int irqmask;
+ unsigned long flags;
+
+ irq -= RM200_I8259A_IRQ_BASE;
+ irqmask = 1 << irq;
+ spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
+ /*
+ * Lightweight spurious IRQ detection. We do not want
+ * to overdo spurious IRQ handling - it's usually a sign
+ * of hardware problems, so we only do the checks we can
+ * do without slowing down good hardware unnecessarily.
+ *
+ * Note that IRQ7 and IRQ15 (the two spurious IRQs
+ * usually resulting from the 8259A-1|2 PICs) occur
+ * even if the IRQ is masked in the 8259A. Thus we
+ * can check spurious 8259A IRQs without doing the
+ * quite slow i8259A_irq_real() call for every IRQ.
+ * This does not cover 100% of spurious interrupts,
+ * but should be enough to warn the user that there
+ * is something bad going on ...
+ */
+ if (rm200_cached_irq_mask & irqmask)
+ goto spurious_8259A_irq;
+ rm200_cached_irq_mask |= irqmask;
+
+handle_real_irq:
+ if (irq & 8) {
+ readb(rm200_pic_slave + PIC_IMR);
+ writeb(cached_slave_mask, rm200_pic_slave + PIC_IMR);
+ writeb(0x60+(irq & 7), rm200_pic_slave + PIC_CMD);
+ writeb(0x60+PIC_CASCADE_IR, rm200_pic_master + PIC_CMD);
+ } else {
+ readb(rm200_pic_master + PIC_IMR);
+ writeb(cached_master_mask, rm200_pic_master + PIC_IMR);
+ writeb(0x60+irq, rm200_pic_master + PIC_CMD);
+ }
+ spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
+ return;
+
+spurious_8259A_irq:
+ /*
+ * this is the slow path - should happen rarely.
+ */
+ if (sni_rm200_i8259A_irq_real(irq))
+ /*
+ * oops, the IRQ _is_ in service according to the
+ * 8259A - not spurious, go handle it.
+ */
+ goto handle_real_irq;
+
+ {
+ static int spurious_irq_mask;
+ /*
+ * At this point we can be sure the IRQ is spurious,
+ * lets ACK and report it. [once per IRQ]
+ */
+ if (!(spurious_irq_mask & irqmask)) {
+ printk(KERN_DEBUG
+ "spurious RM200 8259A interrupt: IRQ%d.\n", irq);
+ spurious_irq_mask |= irqmask;
+ }
+ atomic_inc(&irq_err_count);
+ /*
+ * Theoretically we do not have to handle this IRQ,
+ * but in Linux this does not cause problems and is
+ * simpler for us.
+ */
+ goto handle_real_irq;
+ }
+}
+
+static struct irq_chip sni_rm200_i8259A_chip = {
+ .name = "RM200-XT-PIC",
+ .mask = sni_rm200_disable_8259A_irq,
+ .unmask = sni_rm200_enable_8259A_irq,
+ .mask_ack = sni_rm200_mask_and_ack_8259A,
+};
+
+/*
+ * Do the traditional i8259 interrupt polling thing. This is for the few
+ * cases where no better interrupt acknowledge method is available and we
+ * absolutely must touch the i8259.
+ */
+static inline int sni_rm200_i8259_irq(void)
+{
+ int irq;
+
+ spin_lock(&sni_rm200_i8259A_lock);
+
+ /* Perform an interrupt acknowledge cycle on controller 1. */
+ writeb(0x0C, rm200_pic_master + PIC_CMD); /* prepare for poll */
+ irq = readb(rm200_pic_master + PIC_CMD) & 7;
+ if (irq == PIC_CASCADE_IR) {
+ /*
+ * Interrupt is cascaded so perform interrupt
+ * acknowledge on controller 2.
+ */
+ writeb(0x0C, rm200_pic_slave + PIC_CMD); /* prepare for poll */
+ irq = (readb(rm200_pic_slave + PIC_CMD) & 7) + 8;
+ }
+
+ if (unlikely(irq == 7)) {
+ /*
+ * This may be a spurious interrupt.
+ *
+ * Read the interrupt status register (ISR). If the most
+ * significant bit is not set then there is no valid
+ * interrupt.
+ */
+ writeb(0x0B, rm200_pic_master + PIC_ISR); /* ISR register */
+ if (~readb(rm200_pic_master + PIC_ISR) & 0x80)
+ irq = -1;
+ }
+
+ spin_unlock(&sni_rm200_i8259A_lock);
+
+ return likely(irq >= 0) ? irq + RM200_I8259A_IRQ_BASE : irq;
+}
+
+void sni_rm200_init_8259A(void)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
+
+ writeb(0xff, rm200_pic_master + PIC_IMR);
+ writeb(0xff, rm200_pic_slave + PIC_IMR);
+
+ writeb(0x11, rm200_pic_master + PIC_CMD);
+ writeb(0, rm200_pic_master + PIC_IMR);
+ writeb(1U << PIC_CASCADE_IR, rm200_pic_master + PIC_IMR);
+ writeb(MASTER_ICW4_DEFAULT, rm200_pic_master + PIC_IMR);
+ writeb(0x11, rm200_pic_slave + PIC_CMD);
+ writeb(8, rm200_pic_slave + PIC_IMR);
+ writeb(PIC_CASCADE_IR, rm200_pic_slave + PIC_IMR);
+ writeb(SLAVE_ICW4_DEFAULT, rm200_pic_slave + PIC_IMR);
+ udelay(100); /* wait for 8259A to initialize */
+
+ writeb(cached_master_mask, rm200_pic_master + PIC_IMR);
+ writeb(cached_slave_mask, rm200_pic_slave + PIC_IMR);
+
+ spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
+}
+
+/*
+ * IRQ2 is cascade interrupt to second interrupt controller
+ */
+static struct irqaction sni_rm200_irq2 = {
+ no_action, 0, CPU_MASK_NONE, "cascade", NULL, NULL
+};
+
+static struct resource sni_rm200_pic1_resource = {
+ .name = "onboard ISA pic1",
+ .start = 0x16000020,
+ .end = 0x16000023,
+ .flags = IORESOURCE_BUSY
+};
+
+static struct resource sni_rm200_pic2_resource = {
+ .name = "onboard ISA pic2",
+ .start = 0x160000a0,
+ .end = 0x160000a3,
+ .flags = IORESOURCE_BUSY
+};
+
+/* ISA irq handler */
+static irqreturn_t sni_rm200_i8259A_irq_handler(int dummy, void *p)
+{
+ int irq;
+
+ irq = sni_rm200_i8259_irq();
+ if (unlikely(irq < 0))
+ return IRQ_NONE;
+
+ do_IRQ(irq);
+ return IRQ_HANDLED;
+}
+
+struct irqaction sni_rm200_i8259A_irq = {
+ .handler = sni_rm200_i8259A_irq_handler,
+ .name = "onboard ISA",
+ .flags = IRQF_SHARED
+};
+
+void __init sni_rm200_i8259_irqs(void)
+{
+ int i;
+
+ rm200_pic_master = ioremap_nocache(0x16000020, 4);
+ if (!rm200_pic_master)
+ return;
+ rm200_pic_slave = ioremap_nocache(0x160000a0, 4);
+ if (!rm200_pic_master) {
+ iounmap(rm200_pic_master);
+ return;
+ }
+
+ insert_resource(&iomem_resource, &sni_rm200_pic1_resource);
+ insert_resource(&iomem_resource, &sni_rm200_pic2_resource);
+
+ sni_rm200_init_8259A();
+
+ for (i = RM200_I8259A_IRQ_BASE; i < RM200_I8259A_IRQ_BASE + 16; i++)
+ set_irq_chip_and_handler(i, &sni_rm200_i8259A_chip,
+ handle_level_irq);
+
+ setup_irq(RM200_I8259A_IRQ_BASE + PIC_CASCADE_IR, &sni_rm200_irq2);
+}
+
-#define SNI_RM200_INT_STAT_REG 0xbc000000
-#define SNI_RM200_INT_ENA_REG 0xbc080000
+#define SNI_RM200_INT_STAT_REG CKSEG1ADDR(0xbc000000)
+#define SNI_RM200_INT_ENA_REG CKSEG1ADDR(0xbc080000)
#define SNI_RM200_INT_START 24
#define SNI_RM200_INT_END 28
@@ -181,17 +483,17 @@ void __init sni_rm200_irq_init(void)
* (volatile u8 *)SNI_RM200_INT_ENA_REG = 0x1f;
+ sni_rm200_i8259_irqs();
mips_cpu_irq_init();
/* Actually we've got more interrupts to handle ... */
for (i = SNI_RM200_INT_START; i <= SNI_RM200_INT_END; i++)
set_irq_chip(i, &rm200_irq_type);
sni_hwint = sni_rm200_hwint;
change_c0_status(ST0_IM, IE_IRQ0);
- setup_irq(SNI_RM200_INT_START + 0, &sni_isa_irq);
+ setup_irq(SNI_RM200_INT_START + 0, &sni_rm200_i8259A_irq);
+ setup_irq(SNI_RM200_INT_START + 1, &sni_isa_irq);
}
void __init sni_rm200_init(void)
{
- set_io_port_base(SNI_PORT_BASE + 0x02000000);
- ioport_resource.end += 0x02000000;
}
diff --git a/arch/mips/sni/setup.c b/arch/mips/sni/setup.c
index e8b26bd..5484e1c 100644
--- a/arch/mips/sni/setup.c
+++ b/arch/mips/sni/setup.c
@@ -19,11 +19,17 @@
#include <asm/sgialib.h>
#endif
+#ifdef CONFIG_SNIPROM
+#include <asm/mipsprom.h>
+#endif
+
+#include <asm/bootinfo.h>
#include <asm/io.h>
#include <asm/reboot.h>
#include <asm/sni.h>
unsigned int sni_brd_type;
+EXPORT_SYMBOL(sni_brd_type);
extern void sni_machine_restart(char *command);
extern void sni_machine_power_off(void);
@@ -47,20 +53,152 @@ static void __init sni_display_setup(void)
#endif
}
+static void __init sni_console_setup(void)
+{
+#ifndef CONFIG_ARC
+ char *ctype;
+ char *cdev;
+ char *baud;
+ int port;
+ static char options[8];
+
+ cdev = prom_getenv("console_dev");
+ if (strncmp(cdev, "tty", 3) == 0) {
+ ctype = prom_getenv("console");
+ switch (*ctype) {
+ default:
+ case 'l':
+ port = 0;
+ baud = prom_getenv("lbaud");
+ break;
+ case 'r':
+ port = 1;
+ baud = prom_getenv("rbaud");
+ break;
+ }
+ if (baud)
+ strcpy(options, baud);
+ if (strncmp(cdev, "tty552", 6) == 0)
+ add_preferred_console("ttyS", port,
+ baud ? options : NULL);
+ else
+ add_preferred_console("ttySC", port,
+ baud ? options : NULL);
+ }
+#endif
+}
+
+#ifdef DEBUG
+static void __init sni_idprom_dump(void)
+{
+ int i;
+
+ pr_debug("SNI IDProm dump:\n");
+ for (i = 0; i < 256; i++) {
+ if (i%16 == 0)
+ pr_debug("%04x ", i);
+
+ printk("%02x ", *(unsigned char *) (SNI_IDPROM_BASE + i));
+
+ if (i % 16 == 15)
+ printk("\n");
+ }
+}
+#endif
void __init plat_mem_setup(void)
{
+ int cputype;
+
set_io_port_base(SNI_PORT_BASE);
// ioport_resource.end = sni_io_resource.end;
/*
* Setup (E)ISA I/O memory access stuff
*/
- isa_slot_offset = 0xb0000000;
+ isa_slot_offset = CKSEG1ADDR(0xb0000000);
#ifdef CONFIG_EISA
EISA_bus = 1;
#endif
+ sni_brd_type = *(unsigned char *)SNI_IDPROM_BRDTYPE;
+ cputype = *(unsigned char *)SNI_IDPROM_CPUTYPE;
+ switch (sni_brd_type) {
+ case SNI_BRD_TOWER_OASIC:
+ switch (cputype) {
+ case SNI_CPU_M8030:
+ system_type = "RM400-330";
+ break;
+ case SNI_CPU_M8031:
+ system_type = "RM400-430";
+ break;
+ case SNI_CPU_M8037:
+ system_type = "RM400-530";
+ break;
+ case SNI_CPU_M8034:
+ system_type = "RM400-730";
+ break;
+ default:
+ system_type = "RM400-xxx";
+ break;
+ }
+ break;
+ case SNI_BRD_MINITOWER:
+ switch (cputype) {
+ case SNI_CPU_M8021:
+ case SNI_CPU_M8043:
+ system_type = "RM400-120";
+ break;
+ case SNI_CPU_M8040:
+ system_type = "RM400-220";
+ break;
+ case SNI_CPU_M8053:
+ system_type = "RM400-225";
+ break;
+ case SNI_CPU_M8050:
+ system_type = "RM400-420";
+ break;
+ default:
+ system_type = "RM400-xxx";
+ break;
+ }
+ break;
+ case SNI_BRD_PCI_TOWER:
+ system_type = "RM400-Cxx";
+ break;
+ case SNI_BRD_RM200:
+ system_type = "RM200-xxx";
+ break;
+ case SNI_BRD_PCI_MTOWER:
+ system_type = "RM300-Cxx";
+ break;
+ case SNI_BRD_PCI_DESKTOP:
+ switch (read_c0_prid() & 0xff00) {
+ case PRID_IMP_R4600:
+ case PRID_IMP_R4700:
+ system_type = "RM200-C20";
+ break;
+ case PRID_IMP_R5000:
+ system_type = "RM200-C40";
+ break;
+ default:
+ system_type = "RM200-Cxx";
+ break;
+ }
+ break;
+ case SNI_BRD_PCI_TOWER_CPLUS:
+ system_type = "RM400-Exx";
+ break;
+ case SNI_BRD_PCI_MTOWER_CPLUS:
+ system_type = "RM300-Exx";
+ break;
+ }
+ pr_debug("Found SNI brdtype %02x name %s\n", sni_brd_type, system_type);
+
+#ifdef DEBUG
+ sni_idprom_dump();
+#endif
+
switch (sni_brd_type) {
case SNI_BRD_10:
case SNI_BRD_10NEW:
@@ -89,9 +227,10 @@ void __init plat_mem_setup(void)
pm_power_off = sni_machine_power_off;
sni_display_setup();
+ sni_console_setup();
}
-#if CONFIG_PCI
+#ifdef CONFIG_PCI
#include <linux/pci.h>
#include <video/vga.h>
diff --git a/arch/mips/sni/sniprom.c b/arch/mips/sni/sniprom.c
deleted file mode 100644
index eff4b89..0000000
--- a/arch/mips/sni/sniprom.c
+++ /dev/null
@@ -1,251 +0,0 @@
-/*
- * Big Endian PROM code for SNI RM machines
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2005-2006 Florian Lohoff (flo@xxxxxxxxxx)
- * Copyright (C) 2005-2006 Thomas Bogendoerfer (tsbogend@xxxxxxxxxxxxxxxx)
- */
-
-#define DEBUG
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/string.h>
-#include <linux/console.h>
-
-#include <asm/addrspace.h>
-#include <asm/sni.h>
-#include <asm/mipsprom.h>
-#include <asm/mipsregs.h>
-#include <asm/bootinfo.h>
-
-/* special SNI prom calls */
-/*
- * This does not exist in all proms - SINIX compares
- * the prom env variable "version" against "2.0008"
- * or greater. If lesser it tries to probe interesting
- * registers
- */
-#define PROM_GET_MEMCONF 58
-
-#define PROM_VEC (u64 *)CKSEG1ADDR(0x1fc00000)
-#define PROM_ENTRY(x) (PROM_VEC + (x))
-
-
-static int *(*__prom_putchar)(int) = (int *(*)(int))PROM_ENTRY(PROM_PUTCHAR);
-
-void prom_putchar(char c)
-{
- __prom_putchar(c);
-}
-
-static char *(*__prom_getenv)(char *) = (char *(*)(char *))PROM_ENTRY(PROM_GETENV);
-static void (*__prom_get_memconf)(void *) = (void (*)(void *))PROM_ENTRY(PROM_GET_MEMCONF);
-
-char *prom_getenv(char *s)
-{
- return __prom_getenv(s);
-}
-
-void __init prom_free_prom_memory(void)
-{
-}
-
-/*
- * /proc/cpuinfo system type
- *
- */
-static const char *systype = "Unknown";
-const char *get_system_type(void)
-{
- return systype;
-}
-
-#define SNI_IDPROM_BASE 0xbff00000
-#define SNI_IDPROM_MEMSIZE (SNI_IDPROM_BASE+0x28) /* Memsize in 16MB quantities */
-#define SNI_IDPROM_BRDTYPE (SNI_IDPROM_BASE+0x29) /* Board Type */
-#define SNI_IDPROM_CPUTYPE (SNI_IDPROM_BASE+0x30) /* CPU Type */
-
-#define SNI_IDPROM_SIZE 0x1000
-
-#ifdef DEBUG
-static void __init sni_idprom_dump(void)
-{
- int i;
-
- pr_debug("SNI IDProm dump:\n");
- for (i = 0; i < 256; i++) {
- if (i%16 == 0)
- pr_debug("%04x ", i);
-
- printk("%02x ", *(unsigned char *) (SNI_IDPROM_BASE + i));
-
- if (i % 16 == 15)
- printk("\n");
- }
-}
-#endif
-
-static void __init sni_mem_init(void )
-{
- int i, memsize;
- struct membank {
- u32 size;
- u32 base;
- u32 size2;
- u32 pad1;
- u32 pad2;
- } memconf[8];
-
- /* MemSIZE from prom in 16MByte chunks */
- memsize = *((unsigned char *) SNI_IDPROM_MEMSIZE) * 16;
-
- pr_debug("IDProm memsize: %lu MByte\n", memsize);
-
- /* get memory bank layout from prom */
- __prom_get_memconf(&memconf);
-
- pr_debug("prom_get_mem_conf memory configuration:\n");
- for (i = 0;i < 8 && memconf[i].size; i++) {
- if (sni_brd_type == SNI_BRD_PCI_TOWER ||
- sni_brd_type == SNI_BRD_PCI_TOWER_CPLUS) {
- if (memconf[i].base >= 0x20000000 &&
- memconf[i].base < 0x30000000) {
- memconf[i].base -= 0x20000000;
- }
- }
- pr_debug("Bank%d: %08x @ %08x\n", i,
- memconf[i].size, memconf[i].base);
- add_memory_region(memconf[i].base, memconf[i].size, BOOT_MEM_RAM);
- }
-}
-
-static void __init sni_console_setup(void)
-{
- char *ctype;
- char *cdev;
- char *baud;
- int port;
- static char options[8];
-
- cdev = prom_getenv("console_dev");
- if (strncmp (cdev, "tty", 3) == 0) {
- ctype = prom_getenv("console");
- switch (*ctype) {
- default:
- case 'l':
- port = 0;
- baud = prom_getenv("lbaud");
- break;
- case 'r':
- port = 1;
- baud = prom_getenv("rbaud");
- break;
- }
- if (baud)
- strcpy(options, baud);
- if (strncmp (cdev, "tty552", 6) == 0)
- add_preferred_console("ttyS", port, baud ? options : NULL);
- else
- add_preferred_console("ttySC", port, baud ? options : NULL);
- }
-}
-
-void __init prom_init(void)
-{
- int argc = fw_arg0;
- char **argv = (void *)fw_arg1;
- int i;
- int cputype;
-
- sni_brd_type = *(unsigned char *)SNI_IDPROM_BRDTYPE;
- cputype = *(unsigned char *)SNI_IDPROM_CPUTYPE;
- switch (sni_brd_type) {
- case SNI_BRD_TOWER_OASIC:
- switch (cputype) {
- case SNI_CPU_M8030:
- systype = "RM400-330";
- break;
- case SNI_CPU_M8031:
- systype = "RM400-430";
- break;
- case SNI_CPU_M8037:
- systype = "RM400-530";
- break;
- case SNI_CPU_M8034:
- systype = "RM400-730";
- break;
- default:
- systype = "RM400-xxx";
- break;
- }
- break;
- case SNI_BRD_MINITOWER:
- switch (cputype) {
- case SNI_CPU_M8021:
- case SNI_CPU_M8043:
- systype = "RM400-120";
- break;
- case SNI_CPU_M8040:
- systype = "RM400-220";
- break;
- case SNI_CPU_M8053:
- systype = "RM400-225";
- break;
- case SNI_CPU_M8050:
- systype = "RM400-420";
- break;
- default:
- systype = "RM400-xxx";
- break;
- }
- break;
- case SNI_BRD_PCI_TOWER:
- systype = "RM400-Cxx";
- break;
- case SNI_BRD_RM200:
- systype = "RM200-xxx";
- break;
- case SNI_BRD_PCI_MTOWER:
- systype = "RM300-Cxx";
- break;
- case SNI_BRD_PCI_DESKTOP:
- switch (read_c0_prid() & 0xff00) {
- case PRID_IMP_R4600:
- case PRID_IMP_R4700:
- systype = "RM200-C20";
- break;
- case PRID_IMP_R5000:
- systype = "RM200-C40";
- break;
- default:
- systype = "RM200-Cxx";
- break;
- }
- break;
- case SNI_BRD_PCI_TOWER_CPLUS:
- systype = "RM400-Exx";
- break;
- case SNI_BRD_PCI_MTOWER_CPLUS:
- systype = "RM300-Exx";
- break;
- }
- pr_debug("Found SNI brdtype %02x name %s\n", sni_brd_type, systype);
-
-#ifdef DEBUG
- sni_idprom_dump();
-#endif
- sni_mem_init();
- sni_console_setup();
-
- /* copy prom cmdline parameters to kernel cmdline */
- for (i = 1; i < argc; i++) {
- strcat(arcs_cmdline, argv[i]);
- if (i < (argc - 1))
- strcat(arcs_cmdline, " ");
- }
-}
-
diff --git a/arch/mips/sni/time.c b/arch/mips/sni/time.c
index 6f339af..796e3ce 100644
--- a/arch/mips/sni/time.c
+++ b/arch/mips/sni/time.c
@@ -178,6 +178,7 @@ void __init plat_time_init(void)
sni_a20r_timer_setup();
break;
}
+ setup_pit_timer();
}
unsigned long read_persistent_clock(void)
diff --git a/include/asm-mips/bootinfo.h b/include/asm-mips/bootinfo.h
index b2dd9b3..c8b6625 100644
--- a/include/asm-mips/bootinfo.h
+++ b/include/asm-mips/bootinfo.h
@@ -200,6 +200,7 @@
#define CL_SIZE COMMAND_LINE_SIZE
+extern char *system_type;
const char *get_system_type(void);
extern unsigned long mips_machtype;
diff --git a/include/asm-mips/mipsprom.h b/include/asm-mips/mipsprom.h
index ce7cff7..146d41b 100644
--- a/include/asm-mips/mipsprom.h
+++ b/include/asm-mips/mipsprom.h
@@ -71,4 +71,6 @@
#define PROM_NV_GET 53 /* XXX */
#define PROM_NV_SET 54 /* XXX */
+extern char *prom_getenv(char *);
+
#endif /* __ASM_MIPS_PROM_H */
diff --git a/include/asm-mips/sni.h b/include/asm-mips/sni.h
index af08145..e716447 100644
--- a/include/asm-mips/sni.h
+++ b/include/asm-mips/sni.h
@@ -35,23 +35,23 @@ extern unsigned int sni_brd_type;
#define SNI_CPU_M8050 0x0b
#define SNI_CPU_M8053 0x0d
-#define SNI_PORT_BASE 0xb4000000
+#define SNI_PORT_BASE CKSEG1ADDR(0xb4000000)
#ifndef __MIPSEL__
/*
* ASIC PCI registers for big endian configuration.
*/
-#define PCIMT_UCONF 0xbfff0004
-#define PCIMT_IOADTIMEOUT2 0xbfff000c
-#define PCIMT_IOMEMCONF 0xbfff0014
-#define PCIMT_IOMMU 0xbfff001c
-#define PCIMT_IOADTIMEOUT1 0xbfff0024
-#define PCIMT_DMAACCESS 0xbfff002c
-#define PCIMT_DMAHIT 0xbfff0034
-#define PCIMT_ERRSTATUS 0xbfff003c
-#define PCIMT_ERRADDR 0xbfff0044
-#define PCIMT_SYNDROME 0xbfff004c
-#define PCIMT_ITPEND 0xbfff0054
+#define PCIMT_UCONF CKSEG1ADDR(0xbfff0004)
+#define PCIMT_IOADTIMEOUT2 CKSEG1ADDR(0xbfff000c)
+#define PCIMT_IOMEMCONF CKSEG1ADDR(0xbfff0014)
+#define PCIMT_IOMMU CKSEG1ADDR(0xbfff001c)
+#define PCIMT_IOADTIMEOUT1 CKSEG1ADDR(0xbfff0024)
+#define PCIMT_DMAACCESS CKSEG1ADDR(0xbfff002c)
+#define PCIMT_DMAHIT CKSEG1ADDR(0xbfff0034)
+#define PCIMT_ERRSTATUS CKSEG1ADDR(0xbfff003c)
+#define PCIMT_ERRADDR CKSEG1ADDR(0xbfff0044)
+#define PCIMT_SYNDROME CKSEG1ADDR(0xbfff004c)
+#define PCIMT_ITPEND CKSEG1ADDR(0xbfff0054)
#define IT_INT2 0x01
#define IT_INTD 0x02
#define IT_INTC 0x04
@@ -60,32 +60,32 @@ extern unsigned int sni_brd_type;
#define IT_EISA 0x20
#define IT_SCSI 0x40
#define IT_ETH 0x80
-#define PCIMT_IRQSEL 0xbfff005c
-#define PCIMT_TESTMEM 0xbfff0064
-#define PCIMT_ECCREG 0xbfff006c
-#define PCIMT_CONFIG_ADDRESS 0xbfff0074
-#define PCIMT_ASIC_ID 0xbfff007c /* read */
-#define PCIMT_SOFT_RESET 0xbfff007c /* write */
-#define PCIMT_PIA_OE 0xbfff0084
-#define PCIMT_PIA_DATAOUT 0xbfff008c
-#define PCIMT_PIA_DATAIN 0xbfff0094
-#define PCIMT_CACHECONF 0xbfff009c
-#define PCIMT_INVSPACE 0xbfff00a4
+#define PCIMT_IRQSEL CKSEG1ADDR(0xbfff005c)
+#define PCIMT_TESTMEM CKSEG1ADDR(0xbfff0064)
+#define PCIMT_ECCREG CKSEG1ADDR(0xbfff006c)
+#define PCIMT_CONFIG_ADDRESS CKSEG1ADDR(0xbfff0074)
+#define PCIMT_ASIC_ID CKSEG1ADDR(0xbfff007c) /* read */
+#define PCIMT_SOFT_RESET CKSEG1ADDR(0xbfff007c) /* write */
+#define PCIMT_PIA_OE CKSEG1ADDR(0xbfff0084)
+#define PCIMT_PIA_DATAOUT CKSEG1ADDR(0xbfff008c)
+#define PCIMT_PIA_DATAIN CKSEG1ADDR(0xbfff0094)
+#define PCIMT_CACHECONF CKSEG1ADDR(0xbfff009c)
+#define PCIMT_INVSPACE CKSEG1ADDR(0xbfff00a4)
#else
/*
* ASIC PCI registers for little endian configuration.
*/
-#define PCIMT_UCONF 0xbfff0000
-#define PCIMT_IOADTIMEOUT2 0xbfff0008
-#define PCIMT_IOMEMCONF 0xbfff0010
-#define PCIMT_IOMMU 0xbfff0018
-#define PCIMT_IOADTIMEOUT1 0xbfff0020
-#define PCIMT_DMAACCESS 0xbfff0028
-#define PCIMT_DMAHIT 0xbfff0030
-#define PCIMT_ERRSTATUS 0xbfff0038
-#define PCIMT_ERRADDR 0xbfff0040
-#define PCIMT_SYNDROME 0xbfff0048
-#define PCIMT_ITPEND 0xbfff0050
+#define PCIMT_UCONF CKSEG1ADDR(0xbfff0000)
+#define PCIMT_IOADTIMEOUT2 CKSEG1ADDR(0xbfff0008)
+#define PCIMT_IOMEMCONF CKSEG1ADDR(0xbfff0010)
+#define PCIMT_IOMMU CKSEG1ADDR(0xbfff0018)
+#define PCIMT_IOADTIMEOUT1 CKSEG1ADDR(0xbfff0020)
+#define PCIMT_DMAACCESS CKSEG1ADDR(0xbfff0028)
+#define PCIMT_DMAHIT CKSEG1ADDR(0xbfff0030)
+#define PCIMT_ERRSTATUS CKSEG1ADDR(0xbfff0038)
+#define PCIMT_ERRADDR CKSEG1ADDR(0xbfff0040)
+#define PCIMT_SYNDROME CKSEG1ADDR(0xbfff0048)
+#define PCIMT_ITPEND CKSEG1ADDR(0xbfff0050)
#define IT_INT2 0x01
#define IT_INTD 0x02
#define IT_INTC 0x04
@@ -94,20 +94,20 @@ extern unsigned int sni_brd_type;
#define IT_EISA 0x20
#define IT_SCSI 0x40
#define IT_ETH 0x80
-#define PCIMT_IRQSEL 0xbfff0058
-#define PCIMT_TESTMEM 0xbfff0060
-#define PCIMT_ECCREG 0xbfff0068
-#define PCIMT_CONFIG_ADDRESS 0xbfff0070
-#define PCIMT_ASIC_ID 0xbfff0078 /* read */
-#define PCIMT_SOFT_RESET 0xbfff0078 /* write */
-#define PCIMT_PIA_OE 0xbfff0080
-#define PCIMT_PIA_DATAOUT 0xbfff0088
-#define PCIMT_PIA_DATAIN 0xbfff0090
-#define PCIMT_CACHECONF 0xbfff0098
-#define PCIMT_INVSPACE 0xbfff00a0
+#define PCIMT_IRQSEL CKSEG1ADDR(0xbfff0058)
+#define PCIMT_TESTMEM CKSEG1ADDR(0xbfff0060)
+#define PCIMT_ECCREG CKSEG1ADDR(0xbfff0068)
+#define PCIMT_CONFIG_ADDRESS CKSEG1ADDR(0xbfff0070)
+#define PCIMT_ASIC_ID CKSEG1ADDR(0xbfff0078) /* read */
+#define PCIMT_SOFT_RESET CKSEG1ADDR(0xbfff0078) /* write */
+#define PCIMT_PIA_OE CKSEG1ADDR(0xbfff0080)
+#define PCIMT_PIA_DATAOUT CKSEG1ADDR(0xbfff0088)
+#define PCIMT_PIA_DATAIN CKSEG1ADDR(0xbfff0090)
+#define PCIMT_CACHECONF CKSEG1ADDR(0xbfff0098)
+#define PCIMT_INVSPACE CKSEG1ADDR(0xbfff00a0)
#endif
-#define PCIMT_PCI_CONF 0xbfff0100
+#define PCIMT_PCI_CONF CKSEG1ADDR(0xbfff0100)
/*
* Data port for the PCI bus in IO space
@@ -117,34 +117,34 @@ extern unsigned int sni_brd_type;
/*
* Board specific registers
*/
-#define PCIMT_CSMSR 0xbfd00000
-#define PCIMT_CSSWITCH 0xbfd10000
-#define PCIMT_CSITPEND 0xbfd20000
-#define PCIMT_AUTO_PO_EN 0xbfd30000
-#define PCIMT_CLR_TEMP 0xbfd40000
-#define PCIMT_AUTO_PO_DIS 0xbfd50000
-#define PCIMT_EXMSR 0xbfd60000
-#define PCIMT_UNUSED1 0xbfd70000
-#define PCIMT_CSWCSM 0xbfd80000
-#define PCIMT_UNUSED2 0xbfd90000
-#define PCIMT_CSLED 0xbfda0000
-#define PCIMT_CSMAPISA 0xbfdb0000
-#define PCIMT_CSRSTBP 0xbfdc0000
-#define PCIMT_CLRPOFF 0xbfdd0000
-#define PCIMT_CSTIMER 0xbfde0000
-#define PCIMT_PWDN 0xbfdf0000
+#define PCIMT_CSMSR CKSEG1ADDR(0xbfd00000)
+#define PCIMT_CSSWITCH CKSEG1ADDR(0xbfd10000)
+#define PCIMT_CSITPEND CKSEG1ADDR(0xbfd20000)
+#define PCIMT_AUTO_PO_EN CKSEG1ADDR(0xbfd30000)
+#define PCIMT_CLR_TEMP CKSEG1ADDR(0xbfd40000)
+#define PCIMT_AUTO_PO_DIS CKSEG1ADDR(0xbfd50000)
+#define PCIMT_EXMSR CKSEG1ADDR(0xbfd60000)
+#define PCIMT_UNUSED1 CKSEG1ADDR(0xbfd70000)
+#define PCIMT_CSWCSM CKSEG1ADDR(0xbfd80000)
+#define PCIMT_UNUSED2 CKSEG1ADDR(0xbfd90000)
+#define PCIMT_CSLED CKSEG1ADDR(0xbfda0000)
+#define PCIMT_CSMAPISA CKSEG1ADDR(0xbfdb0000)
+#define PCIMT_CSRSTBP CKSEG1ADDR(0xbfdc0000)
+#define PCIMT_CLRPOFF CKSEG1ADDR(0xbfdd0000)
+#define PCIMT_CSTIMER CKSEG1ADDR(0xbfde0000)
+#define PCIMT_PWDN CKSEG1ADDR(0xbfdf0000)
/*
* A20R based boards
*/
-#define A20R_PT_CLOCK_BASE 0xbc040000
-#define A20R_PT_TIM0_ACK 0xbc050000
-#define A20R_PT_TIM1_ACK 0xbc060000
+#define A20R_PT_CLOCK_BASE CKSEG1ADDR(0xbc040000)
+#define A20R_PT_TIM0_ACK CKSEG1ADDR(0xbc050000)
+#define A20R_PT_TIM1_ACK CKSEG1ADDR(0xbc060000)
#define SNI_A20R_IRQ_BASE MIPS_CPU_IRQ_BASE
#define SNI_A20R_IRQ_TIMER (SNI_A20R_IRQ_BASE+5)
-#define SNI_PCIT_INT_REG 0xbfff000c
+#define SNI_PCIT_INT_REG CKSEG1ADDR(0xbfff000c)
#define SNI_PCIT_INT_START 24
#define SNI_PCIT_INT_END 30
@@ -186,10 +186,30 @@ extern unsigned int sni_brd_type;
/*
* Base address for the mapped 16mb EISA bus segment.
*/
-#define PCIMT_EISA_BASE 0xb0000000
+#define PCIMT_EISA_BASE CKSEG1ADDR(0xb0000000)
/* PCI EISA Interrupt acknowledge */
-#define PCIMT_INT_ACKNOWLEDGE 0xba000000
+#define PCIMT_INT_ACKNOWLEDGE CKSEG1ADDR(0xba000000)
+
+/*
+ * SNI ID PROM
+ *
+ * SNI_IDPROM_MEMSIZE Memsize in 16MB quantities
+ * SNI_IDPROM_BRDTYPE Board Type
+ * SNI_IDPROM_CPUTYPE CPU Type on RM400
+ */
+#ifdef CONFIG_CPU_BIG_ENDIAN
+#define __SNI_END 0
+#endif
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+#define __SNI_END 3
+#endif
+#define SNI_IDPROM_BASE CKSEG1ADDR(0x1ff00000)
+#define SNI_IDPROM_MEMSIZE (SNI_IDPROM_BASE + (0x28 ^ __SNI_END))
+#define SNI_IDPROM_BRDTYPE (SNI_IDPROM_BASE + (0x29 ^ __SNI_END))
+#define SNI_IDPROM_CPUTYPE (SNI_IDPROM_BASE + (0x30 ^ __SNI_END))
+
+#define SNI_IDPROM_SIZE 0x1000
/* board specific init functions */
extern void sni_a20r_init(void);
@@ -207,6 +227,9 @@ extern void sni_pcimt_irq_init(void);
/* timer inits */
extern void sni_cpu_time_init(void);
+/* eisa init for RM200/400 */
+extern int sni_eisa_root_init(void);
+
/* common irq stuff */
extern void (*sni_hwint)(void);
extern struct irqaction sni_isa_irq;
