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[MIPS] SNI RM updates

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- use RTC_CLASS instead of GEN_RTC
- get rid of ds1216 in favour of a RTC_CLASS driver
- use correct console device for older RM400
- use physical addresses for 82596 device
- use 128 byte L1 cache line size (this is needed because most of the
  SNI caches are using 128 L2 cache lines)

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Thomas Bogendoerfer 2007-06-20 23:36:47 +02:00 committed by Ralf Baechle
parent 68bc00e311
commit 06cf5583fd
9 changed files with 95 additions and 115 deletions
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4
arch/mips/Kconfig
View File

@ -918,8 +918,8 @@ config BOOT_ELF32
config MIPS_L1_CACHE_SHIFT
int
default "4" if MACH_DECSTATION || SNI_RM
default "7" if SGI_IP27
default "4" if MACH_DECSTATION
default "7" if SGI_IP27 || SNI_RM
default "4" if PMC_MSP4200_EVAL
default "5"

2
arch/mips/sni/Makefile
View File

@ -2,5 +2,5 @@
# Makefile for the SNI specific part of the kernel
#
obj-y += irq.o reset.o setup.o ds1216.o a20r.o rm200.o pcimt.o pcit.o time.o
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

31
arch/mips/sni/a20r.c
View File

@ -15,7 +15,6 @@
#include <asm/sni.h>
#include <asm/time.h>
#include <asm/ds1216.h>
#define PORT(_base,_irq) \
{ \
@ -40,20 +39,34 @@ static struct platform_device a20r_serial8250_device = {
},
};
static struct resource a20r_ds1216_rsrc[] = {
{
.start = 0x1c081ffc,
.end = 0x1c081fff,
.flags = IORESOURCE_MEM
}
};
static struct platform_device a20r_ds1216_device = {
.name = "rtc-ds1216",
.num_resources = ARRAY_SIZE(a20r_ds1216_rsrc),
.resource = a20r_ds1216_rsrc
};
static struct resource snirm_82596_rsrc[] = {
{
.start = 0xb8000000,
.end = 0xb8000004,
.start = 0x18000000,
.end = 0x18000004,
.flags = IORESOURCE_MEM
},
{
.start = 0xb8010000,
.end = 0xb8010004,
.start = 0x18010000,
.end = 0x18010004,
.flags = IORESOURCE_MEM
},
{
.start = 0xbff00000,
.end = 0xbff00020,
.start = 0x1ff00000,
.end = 0x1ff00020,
.flags = IORESOURCE_MEM
},
{
@ -205,8 +218,7 @@ void __init sni_a20r_irq_init(void)
void sni_a20r_init(void)
{
ds1216_base = (volatile unsigned char *) SNI_DS1216_A20R_BASE;
rtc_mips_get_time = ds1216_get_cmos_time;
/* FIXME, remove if not needed */
}
static int __init snirm_a20r_setup_devinit(void)
@ -218,6 +230,7 @@ static int __init snirm_a20r_setup_devinit(void)
platform_device_register(&snirm_53c710_pdev);
platform_device_register(&sc26xx_pdev);
platform_device_register(&a20r_serial8250_device);
platform_device_register(&a20r_ds1216_device);
break;
}

81
arch/mips/sni/ds1216.c
View File

@ -1,81 +0,0 @@
#include <linux/bcd.h>
#include <linux/time.h>
#include <asm/ds1216.h>
volatile unsigned char *ds1216_base;
/*
* Read the 64 bit we'd like to have - It a series
* of 64 bits showing up in the LSB of the base register.
*
*/
static unsigned char *ds1216_read(void)
{
static unsigned char rdbuf[8];
unsigned char c;
int i, j;
for (i = 0; i < 8; i++) {
c = 0x0;
for (j = 0; j < 8; j++) {
c |= (*ds1216_base & 0x1) << j;
}
rdbuf[i] = c;
}
return rdbuf;
}
static void ds1216_switch_ds_to_clock(void)
{
unsigned char magic[] = {
0xc5, 0x3a, 0xa3, 0x5c, 0xc5, 0x3a, 0xa3, 0x5c
};
int i,j,c;
/* Reset magic pointer */
c = *ds1216_base;
/* Write 64 bit magic to DS1216 */
for (i = 0; i < 8; i++) {
c = magic[i];
for (j = 0; j < 8; j++) {
*ds1216_base = c;
c = c >> 1;
}
}
}
unsigned long ds1216_get_cmos_time(void)
{
unsigned char *rdbuf;
unsigned int year, month, date, hour, min, sec;
ds1216_switch_ds_to_clock();
rdbuf = ds1216_read();
sec = BCD2BIN(DS1216_SEC(rdbuf));
min = BCD2BIN(DS1216_MIN(rdbuf));
hour = BCD2BIN(DS1216_HOUR(rdbuf));
date = BCD2BIN(DS1216_DATE(rdbuf));
month = BCD2BIN(DS1216_MONTH(rdbuf));
year = BCD2BIN(DS1216_YEAR(rdbuf));
if (DS1216_1224(rdbuf) && DS1216_AMPM(rdbuf))
hour+=12;
if (year < 70)
year += 2000;
else
year += 1900;
return mktime(year, month, date, hour, min, sec);
}
int ds1216_set_rtc_mmss(unsigned long nowtime)
{
printk("ds1216_set_rtc_mmss called but not implemented\n");
return -1;
}

26
arch/mips/sni/pcimt.c
View File

@ -14,7 +14,6 @@
#include <linux/pci.h>
#include <linux/serial_8250.h>
#include <asm/mc146818-time.h>
#include <asm/sni.h>
#include <asm/time.h>
#include <asm/i8259.h>
@ -90,6 +89,26 @@ static struct platform_device pcimt_serial8250_device = {
},
};
static struct resource pcimt_cmos_rsrc[] = {
{
.start = 0x70,
.end = 0x71,
.flags = IORESOURCE_IO
},
{
.start = 8,
.end = 8,
.flags = IORESOURCE_IRQ
}
};
static struct platform_device pcimt_cmos_device = {
.name = "rtc_cmos",
.num_resources = ARRAY_SIZE(pcimt_cmos_rsrc),
.resource = pcimt_cmos_rsrc
};
static struct resource sni_io_resource = {
.start = 0x00000000UL,
.end = 0x03bfffffUL,
@ -290,12 +309,10 @@ void __init sni_pcimt_irq_init(void)
change_c0_status(ST0_IM, IE_IRQ1|IE_IRQ3);
}
void sni_pcimt_init(void)
void __init sni_pcimt_init(void)
{
sni_pcimt_detect();
sni_pcimt_sc_init();
rtc_mips_get_time = mc146818_get_cmos_time;
rtc_mips_set_time = mc146818_set_rtc_mmss;
board_time_init = sni_cpu_time_init;
ioport_resource.end = sni_io_resource.end;
#ifdef CONFIG_PCI
@ -312,6 +329,7 @@ static int __init snirm_pcimt_setup_devinit(void)
case SNI_BRD_PCI_DESKTOP:
case SNI_BRD_PCI_MTOWER_CPLUS:
platform_device_register(&pcimt_serial8250_device);
platform_device_register(&pcimt_cmos_device);
break;
}

26
arch/mips/sni/pcit.c
View File

@ -13,7 +13,6 @@
#include <linux/pci.h>
#include <linux/serial_8250.h>
#include <asm/mc146818-time.h>
#include <asm/sni.h>
#include <asm/time.h>
#include <asm/irq_cpu.h>
@ -58,6 +57,25 @@ static struct platform_device pcit_cplus_serial8250_device = {
},
};
static struct resource pcit_cmos_rsrc[] = {
{
.start = 0x70,
.end = 0x71,
.flags = IORESOURCE_IO
},
{
.start = 8,
.end = 8,
.flags = IORESOURCE_IRQ
}
};
static struct platform_device pcit_cmos_device = {
.name = "rtc_cmos",
.num_resources = ARRAY_SIZE(pcit_cmos_rsrc),
.resource = pcit_cmos_rsrc
};
static struct resource sni_io_resource = {
.start = 0x00000000UL,
.end = 0x03bfffffUL,
@ -243,10 +261,8 @@ void __init sni_pcit_cplus_irq_init(void)
setup_irq (MIPS_CPU_IRQ_BASE + 3, &sni_isa_irq);
}
void sni_pcit_init(void)
void __init sni_pcit_init(void)
{
rtc_mips_get_time = mc146818_get_cmos_time;
rtc_mips_set_time = mc146818_set_rtc_mmss;
board_time_init = sni_cpu_time_init;
ioport_resource.end = sni_io_resource.end;
#ifdef CONFIG_PCI
@ -261,10 +277,12 @@ static int __init snirm_pcit_setup_devinit(void)
switch (sni_brd_type) {
case SNI_BRD_PCI_TOWER:
platform_device_register(&pcit_serial8250_device);
platform_device_register(&pcit_cmos_device);
break;
case SNI_BRD_PCI_TOWER_CPLUS:
platform_device_register(&pcit_cplus_serial8250_device);
platform_device_register(&pcit_cmos_device);
break;
}
return 0;

32
arch/mips/sni/rm200.c
View File

@ -15,7 +15,6 @@
#include <asm/sni.h>
#include <asm/time.h>
#include <asm/ds1216.h>
#include <asm/irq_cpu.h>
#define PORT(_base,_irq) \
@ -41,20 +40,34 @@ static struct platform_device rm200_serial8250_device = {
},
};
static struct resource rm200_ds1216_rsrc[] = {
{
.start = 0x1cd41ffc,
.end = 0x1cd41fff,
.flags = IORESOURCE_MEM
}
};
static struct platform_device rm200_ds1216_device = {
.name = "rtc-ds1216",
.num_resources = ARRAY_SIZE(rm200_ds1216_rsrc),
.resource = rm200_ds1216_rsrc
};
static struct resource snirm_82596_rm200_rsrc[] = {
{
.start = 0xb8000000,
.end = 0xb80fffff,
.start = 0x18000000,
.end = 0x180fffff,
.flags = IORESOURCE_MEM
},
{
.start = 0xbb000000,
.end = 0xbb000004,
.start = 0x1b000000,
.end = 0x1b000004,
.flags = IORESOURCE_MEM
},
{
.start = 0xbff00000,
.end = 0xbff00020,
.start = 0x1ff00000,
.end = 0x1ff00020,
.flags = IORESOURCE_MEM
},
{
@ -96,6 +109,7 @@ static int __init snirm_setup_devinit(void)
{
if (sni_brd_type == SNI_BRD_RM200) {
platform_device_register(&rm200_serial8250_device);
platform_device_register(&rm200_ds1216_device);
platform_device_register(&snirm_82596_rm200_pdev);
platform_device_register(&snirm_53c710_rm200_pdev);
}
@ -176,11 +190,9 @@ void __init sni_rm200_irq_init(void)
setup_irq (SNI_RM200_INT_START + 0, &sni_isa_irq);
}
void sni_rm200_init(void)
void __init sni_rm200_init(void)
{
set_io_port_base(SNI_PORT_BASE + 0x02000000);
ioport_resource.end += 0x02000000;
ds1216_base = (volatile unsigned char *) SNI_DS1216_RM200_BASE;
rtc_mips_get_time = ds1216_get_cmos_time;
board_time_init = sni_cpu_time_init;
}

5
arch/mips/sni/sniprom.c
View File

@ -146,7 +146,10 @@ static void __init sni_console_setup(void)
}
if (baud)
strcpy(options, baud);
add_preferred_console("ttyS", port, baud ? options : NULL);
if (strncmp (cdev, "tty552", 6) == 0)
add_preferred_console("ttyS", port, baud ? options : NULL);
else
add_preferred_console("ttySC", port, baud ? options : NULL);
}
}

3
include/asm-mips/sni.h
View File

@ -146,9 +146,6 @@ extern unsigned int sni_brd_type;
#define SNI_A20R_IRQ_BASE MIPS_CPU_IRQ_BASE
#define SNI_A20R_IRQ_TIMER (SNI_A20R_IRQ_BASE+5)
#define SNI_DS1216_A20R_BASE 0xbc081ffc
#define SNI_DS1216_RM200_BASE 0xbcd41ffc
#define SNI_PCIT_INT_REG 0xbfff000c
#define SNI_PCIT_INT_START 24