Commit 06cf5583 authored by Thomas Bogendoerfer's avatar Thomas Bogendoerfer Committed by Ralf Baechle
Browse files

[MIPS] SNI RM updates 



- 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: default avatarThomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 68bc00e3

arch/mips/Kconfig

+2 −2
Original line number Diff line number Diff line
@@ -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"

arch/mips/sni/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -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

arch/mips/sni/a20r.c

+22 −9
Original line number Diff line number Diff line
@@ -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;

	}

arch/mips/sni/ds1216.c

deleted100644 → 0
+0 −81
Original line number Diff line number Diff line 


#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;

}

arch/mips/sni/pcimt.c

+22 −4
Original line number Diff line number Diff line
@@ -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;

	}

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