diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/ppc/platforms/Makefile | 1 | ||||
| -rw-r--r-- | arch/ppc/platforms/gemini.h | 165 | ||||
| -rw-r--r-- | arch/ppc/platforms/gemini_pci.c | 41 | ||||
| -rw-r--r-- | arch/ppc/platforms/gemini_prom.S | 90 | ||||
| -rw-r--r-- | arch/ppc/platforms/gemini_serial.h | 40 | ||||
| -rw-r--r-- | arch/ppc/platforms/gemini_setup.c | 577 |
6 files changed, 0 insertions, 914 deletions
diff --git a/arch/ppc/platforms/Makefile b/arch/ppc/platforms/Makefile index 90c622294423..e17fad470621 100644 --- a/arch/ppc/platforms/Makefile +++ b/arch/ppc/platforms/Makefile @@ -13,7 +13,6 @@ obj-$(CONFIG_TQM8260) += tqm8260_setup.o obj-$(CONFIG_CPCI690) += cpci690.o obj-$(CONFIG_EV64260) += ev64260.o obj-$(CONFIG_CHESTNUT) += chestnut.o -obj-$(CONFIG_GEMINI) += gemini_pci.o gemini_setup.o gemini_prom.o obj-$(CONFIG_LOPEC) += lopec.o obj-$(CONFIG_KATANA) += katana.o obj-$(CONFIG_HDPU) += hdpu.o diff --git a/arch/ppc/platforms/gemini.h b/arch/ppc/platforms/gemini.h deleted file mode 100644 index 5528fd0a1216..000000000000 --- a/arch/ppc/platforms/gemini.h +++ /dev/null @@ -1,165 +0,0 @@ -/* - * Onboard registers and descriptions for Synergy Microsystems' - * "Gemini" boards. - * - */ -#ifdef __KERNEL__ -#ifndef __PPC_GEMINI_H -#define __PPC_GEMINI_H - -/* Registers */ - -#define GEMINI_SERIAL_B (0xffeffb00) -#define GEMINI_SERIAL_A (0xffeffb08) -#define GEMINI_USWITCH (0xffeffd00) -#define GEMINI_BREV (0xffeffe00) -#define GEMINI_BECO (0xffeffe08) -#define GEMINI_FEAT (0xffeffe10) -#define GEMINI_BSTAT (0xffeffe18) -#define GEMINI_CPUSTAT (0xffeffe20) -#define GEMINI_L2CFG (0xffeffe30) -#define GEMINI_MEMCFG (0xffeffe38) -#define GEMINI_FLROM (0xffeffe40) -#define GEMINI_P0PCI (0xffeffe48) -#define GEMINI_FLWIN (0xffeffe50) -#define GEMINI_P0INTMASK (0xffeffe60) -#define GEMINI_P0INTAP (0xffeffe68) -#define GEMINI_PCIERR (0xffeffe70) -#define GEMINI_LEDBASE (0xffeffe80) -#define GEMINI_RTC (0xffe9fff8) -#define GEMINI_LEDS 8 -#define GEMINI_SWITCHES 8 - - -/* Flash ROM bit definitions */ -#define GEMINI_FLS_WEN (1<<0) -#define GEMINI_FLS_JMP (1<<6) -#define GEMINI_FLS_BOOT (1<<7) - -/* Memory bit definitions */ -#define GEMINI_MEM_TYPE_MASK 0xc0 -#define GEMINI_MEM_SIZE_MASK 0x38 -#define GEMINI_MEM_BANK_MASK 0x07 - -/* L2 cache bit definitions */ -#define GEMINI_L2_SIZE_MASK 0xc0 -#define GEMINI_L2_RATIO_MASK 0x03 - -/* Timebase register bit definitons */ -#define GEMINI_TIMEB0_EN (1<<0) -#define GEMINI_TIMEB1_EN (1<<1) -#define GEMINI_TIMEB2_EN (1<<2) -#define GEMINI_TIMEB3_EN (1<<3) - -/* CPU status bit definitions */ -#define GEMINI_CPU_ID_MASK 0x03 -#define GEMINI_CPU_COUNT_MASK 0x0c -#define GEMINI_CPU0_HALTED (1<<4) -#define GEMINI_CPU1_HALTED (1<<5) -#define GEMINI_CPU2_HALTED (1<<6) -#define GEMINI_CPU3_HALTED (1<<7) - -/* Board status bit definitions */ -#define GEMINI_BRD_FAIL (1<<0) /* FAIL led is lit */ -#define GEMINI_BRD_BUS_MASK 0x0c /* PowerPC bus speed */ - -/* Board family/feature bit descriptions */ -#define GEMINI_FEAT_HAS_FLASH (1<<0) -#define GEMINI_FEAT_HAS_ETH (1<<1) -#define GEMINI_FEAT_HAS_SCSI (1<<2) -#define GEMINI_FEAT_HAS_P0 (1<<3) -#define GEMINI_FEAT_FAM_MASK 0xf0 - -/* Mod/ECO bit definitions */ -#define GEMINI_ECO_LEVEL_MASK 0x0f -#define GEMINI_MOD_MASK 0xf0 - -/* Type/revision bit definitions */ -#define GEMINI_REV_MASK 0x0f -#define GEMINI_TYPE_MASK 0xf0 - -/* User switch definitions */ -#define GEMINI_SWITCH_VERBOSE 1 /* adds "debug" to boot cmd line */ -#define GEMINI_SWITCH_SINGLE_USER 7 /* boots into "single-user" mode */ - -#define SGS_RTC_CONTROL 0 -#define SGS_RTC_SECONDS 1 -#define SGS_RTC_MINUTES 2 -#define SGS_RTC_HOURS 3 -#define SGS_RTC_DAY 4 -#define SGS_RTC_DAY_OF_MONTH 5 -#define SGS_RTC_MONTH 6 -#define SGS_RTC_YEAR 7 - -#define SGS_RTC_SET 0x80 -#define SGS_RTC_IS_STOPPED 0x80 - -#define GRACKLE_CONFIG_ADDR_ADDR (0xfec00000) -#define GRACKLE_CONFIG_DATA_ADDR (0xfee00000) - -#define GEMINI_BOOT_INIT (0xfff00100) - -#ifndef __ASSEMBLY__ - -static inline void grackle_write( unsigned long addr, unsigned long data ) -{ - __asm__ __volatile__( - " stwbrx %1, 0, %0\n \ - sync\n \ - stwbrx %3, 0, %2\n \ - sync " - : /* no output */ - : "r" (GRACKLE_CONFIG_ADDR_ADDR), "r" (addr), - "r" (GRACKLE_CONFIG_DATA_ADDR), "r" (data)); -} - -static inline unsigned long grackle_read( unsigned long addr ) -{ - unsigned long val; - - __asm__ __volatile__( - " stwbrx %1, 0, %2\n \ - sync\n \ - lwbrx %0, 0, %3\n \ - sync " - : "=r" (val) - : "r" (addr), "r" (GRACKLE_CONFIG_ADDR_ADDR), - "r" (GRACKLE_CONFIG_DATA_ADDR)); - - return val; -} - -static inline void gemini_led_on( int led ) -{ - if (led >= 0 && led < GEMINI_LEDS) - *(unsigned char *)(GEMINI_LEDBASE + (led<<3)) = 1; -} - -static inline void gemini_led_off(int led) -{ - if (led >= 0 && led < GEMINI_LEDS) - *(unsigned char *)(GEMINI_LEDBASE + (led<<3)) = 0; -} - -static inline int gemini_led_val(int led) -{ - int val = 0; - if (led >= 0 && led < GEMINI_LEDS) - val = *(unsigned char *)(GEMINI_LEDBASE + (led<<3)); - return (val & 0x1); -} - -/* returns processor id from the board */ -static inline int gemini_processor(void) -{ - unsigned char cpu = *(unsigned char *)(GEMINI_CPUSTAT); - return (int) ((cpu == 0) ? 4 : (cpu & GEMINI_CPU_ID_MASK)); -} - - -extern void _gemini_reboot(void); -extern void gemini_prom_init(void); -extern void gemini_init_l2(void); -#endif /* __ASSEMBLY__ */ -#endif -#endif /* __KERNEL__ */ diff --git a/arch/ppc/platforms/gemini_pci.c b/arch/ppc/platforms/gemini_pci.c deleted file mode 100644 index 95656091ba2b..000000000000 --- a/arch/ppc/platforms/gemini_pci.c +++ /dev/null @@ -1,41 +0,0 @@ -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/slab.h> - -#include <asm/machdep.h> -#include <platforms/gemini.h> -#include <asm/byteorder.h> -#include <asm/io.h> -#include <asm/uaccess.h> -#include <asm/pci-bridge.h> - -void __init gemini_pcibios_fixup(void) -{ - int i; - struct pci_dev *dev = NULL; - - for_each_pci_dev(dev) { - for(i = 0; i < 6; i++) { - if (dev->resource[i].flags & IORESOURCE_IO) { - dev->resource[i].start |= (0xfe << 24); - dev->resource[i].end |= (0xfe << 24); - } - } - } -} - - -/* The "bootloader" for Synergy boards does none of this for us, so we need to - lay it all out ourselves... --Dan */ -void __init gemini_find_bridges(void) -{ - struct pci_controller* hose; - - ppc_md.pcibios_fixup = gemini_pcibios_fixup; - - hose = pcibios_alloc_controller(); - if (!hose) - return; - setup_indirect_pci(hose, 0xfec00000, 0xfee00000); -} diff --git a/arch/ppc/platforms/gemini_prom.S b/arch/ppc/platforms/gemini_prom.S deleted file mode 100644 index e8c84d24f01f..000000000000 --- a/arch/ppc/platforms/gemini_prom.S +++ /dev/null @@ -1,90 +0,0 @@ -/* - * Not really prom support code (yet), but sort of anti-prom code. The current - * bootloader does a number of things it shouldn't and doesn't do things that it - * should. The stuff in here is mainly a hodge-podge collection of setup code - * to get the board up and running. - * ---Dan - */ - -#include <asm/reg.h> -#include <asm/page.h> -#include <platforms/gemini.h> -#include <asm/ppc_asm.h> - -/* - * On 750's the MMU is on when Linux is booted, so we need to clear out the - * bootloader's BAT settings, make sure we're in supervisor state (gotcha!), - * and turn off the MMU. - * - */ - -_GLOBAL(gemini_prom_init) -#ifdef CONFIG_SMP - /* Since the MMU's on, get stuff in rom space that we'll need */ - lis r4,GEMINI_CPUSTAT@h - ori r4,r4,GEMINI_CPUSTAT@l - lbz r5,0(r4) - andi. r5,r5,3 - mr r24,r5 /* cpu # used later on */ -#endif - mfmsr r4 - li r3,MSR_PR /* ensure supervisor! */ - ori r3,r3,MSR_IR|MSR_DR - andc r4,r4,r3 - mtmsr r4 - isync -#if 0 - /* zero out the bats now that the MMU is off */ -prom_no_mmu: - li r3,0 - mtspr SPRN_IBAT0U,r3 - mtspr SPRN_IBAT0L,r3 - mtspr SPRN_IBAT1U,r3 - mtspr SPRN_IBAT1L,r3 - mtspr SPRN_IBAT2U,r3 - mtspr SPRN_IBAT2L,r3 - mtspr SPRN_IBAT3U,r3 - mtspr SPRN_IBAT3L,r3 - - mtspr SPRN_DBAT0U,r3 - mtspr SPRN_DBAT0L,r3 - mtspr SPRN_DBAT1U,r3 - mtspr SPRN_DBAT1L,r3 - mtspr SPRN_DBAT2U,r3 - mtspr SPRN_DBAT2L,r3 - mtspr SPRN_DBAT3U,r3 - mtspr SPRN_DBAT3L,r3 -#endif - - /* the bootloader (as far as I'm currently aware) doesn't mess with page - tables, but since we're already here, might as well zap these, too */ - li r4,0 - mtspr SPRN_SDR1,r4 - - li r4,16 - mtctr r4 - li r3,0 - li r4,0 -3: mtsrin r3,r4 - addi r3,r3,1 - bdnz 3b - -#ifdef CONFIG_SMP - /* The 750 book (and Mot/IBM support) says that this will "assist" snooping - when in SMP. Not sure yet whether this should stay or leave... */ - mfspr r4,SPRN_HID0 - ori r4,r4,HID0_ABE - mtspr SPRN_HID0,r4 - sync -#endif /* CONFIG_SMP */ - blr - -/* apparently, SMon doesn't pay attention to HID0[SRST]. Disable the MMU and - branch to 0xfff00100 */ -_GLOBAL(_gemini_reboot) - lis r5,GEMINI_BOOT_INIT@h - ori r5,r5,GEMINI_BOOT_INIT@l - li r6,MSR_IP - mtspr SPRN_SRR0,r5 - mtspr SPRN_SRR1,r6 - rfi diff --git a/arch/ppc/platforms/gemini_serial.h b/arch/ppc/platforms/gemini_serial.h deleted file mode 100644 index b915eff79fdb..000000000000 --- a/arch/ppc/platforms/gemini_serial.h +++ /dev/null @@ -1,40 +0,0 @@ -#ifdef __KERNEL__ -#ifndef __ASMPPC_GEMINI_SERIAL_H -#define __ASMPPC_GEMINI_SERIAL_H - -#include <platforms/gemini.h> - -#ifdef CONFIG_SERIAL_MANY_PORTS -#define RS_TABLE_SIZE 64 -#else -#define RS_TABLE_SIZE 4 -#endif - -/* Rate for the 24.576 Mhz clock for the onboard serial chip */ -#define BASE_BAUD (24576000 / 16) - -#ifdef CONFIG_SERIAL_DETECT_IRQ -#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF|ASYNC_SKIP_TEST|ASYNC_AUTO_IRQ) -#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF|ASYNC_AUTO_IRQ) -#else -#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF|ASYNC_SKIP_TEST) -#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF) -#endif - -#define STD_SERIAL_PORT_DEFNS \ - { 0, BASE_BAUD, GEMINI_SERIAL_A, 15, STD_COM_FLAGS }, /* ttyS0 */ \ - { 0, BASE_BAUD, GEMINI_SERIAL_B, 14, STD_COM_FLAGS }, /* ttyS1 */ \ - -#ifdef CONFIG_GEMINI_PU32 -#define PU32_SERIAL_PORT_DEFNS \ - { 0, BASE_BAUD, NULL, 0, STD_COM_FLAGS }, -#else -#define PU32_SERIAL_PORT_DEFNS -#endif - -#define SERIAL_PORT_DFNS \ - STD_SERIAL_PORT_DEFNS \ - PU32_SERIAL_PORT_DEFNS - -#endif -#endif /* __KERNEL__ */ diff --git a/arch/ppc/platforms/gemini_setup.c b/arch/ppc/platforms/gemini_setup.c deleted file mode 100644 index f48048f362a8..000000000000 --- a/arch/ppc/platforms/gemini_setup.c +++ /dev/null @@ -1,577 +0,0 @@ -/* - * Copyright (C) 1995 Linus Torvalds - * Adapted from 'alpha' version by Gary Thomas - * Modified by Cort Dougan (cort@cs.nmt.edu) - * Synergy Microsystems board support by Dan Cox (dan@synergymicro.com) - * - */ - -#include <linux/stddef.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/errno.h> -#include <linux/reboot.h> -#include <linux/pci.h> -#include <linux/time.h> -#include <linux/kdev_t.h> -#include <linux/types.h> -#include <linux/major.h> -#include <linux/initrd.h> -#include <linux/console.h> -#include <linux/seq_file.h> -#include <linux/root_dev.h> -#include <linux/bcd.h> - -#include <asm/system.h> -#include <asm/pgtable.h> -#include <asm/page.h> -#include <asm/dma.h> -#include <asm/io.h> -#include <asm/m48t35.h> -#include <platforms/gemini.h> -#include <asm/time.h> -#include <asm/open_pic.h> -#include <asm/bootinfo.h> -#include <asm/machdep.h> - -void gemini_find_bridges(void); -static int gemini_get_clock_speed(void); -extern void gemini_pcibios_fixup(void); - -static char *gemini_board_families[] = { - "VGM", "VSS", "KGM", "VGR", "VCM", "VCS", "KCM", "VCR" -}; -static int gemini_board_count = sizeof(gemini_board_families) / - sizeof(gemini_board_families[0]); - -static unsigned int cpu_7xx[16] = { - 0, 15, 14, 0, 0, 13, 5, 9, 6, 11, 8, 10, 16, 12, 7, 0 -}; -static unsigned int cpu_6xx[16] = { - 0, 0, 14, 0, 0, 13, 5, 9, 6, 11, 8, 10, 0, 12, 7, 0 -}; - -/* - * prom_init is the Gemini version of prom.c:prom_init. We only need - * the BSS clearing code, so I copied that out of prom.c. This is a - * lot simpler than hacking prom.c so it will build with Gemini. -VAL - */ - -#define PTRRELOC(x) ((typeof(x))((unsigned long)(x) + offset)) - -unsigned long -prom_init(void) -{ - unsigned long offset = reloc_offset(); - unsigned long phys; - extern char __bss_start, _end; - - /* First zero the BSS -- use memset, some arches don't have - * caches on yet */ - memset_io(PTRRELOC(&__bss_start),0 , &_end - &__bss_start); - - /* Default */ - phys = offset + KERNELBASE; - - gemini_prom_init(); - - return phys; -} - -int -gemini_show_cpuinfo(struct seq_file *m) -{ - unsigned char reg, rev; - char *family; - unsigned int type; - - reg = readb(GEMINI_FEAT); - family = gemini_board_families[((reg>>4) & 0xf)]; - if (((reg>>4) & 0xf) > gemini_board_count) - printk(KERN_ERR "cpuinfo(): unable to determine board family\n"); - - reg = readb(GEMINI_BREV); - type = (reg>>4) & 0xf; - rev = reg & 0xf; - - reg = readb(GEMINI_BECO); - - seq_printf(m, "machine\t\t: Gemini %s%d, rev %c, eco %d\n", - family, type, (rev + 'A'), (reg & 0xf)); - - seq_printf(m, "board\t\t: Gemini %s", family); - if (type > 9) - seq_printf(m, "%c", (type - 10) + 'A'); - else - seq_printf(m, "%d", type); - - seq_printf(m, ", rev %c, eco %d\n", (rev + 'A'), (reg & 0xf)); - - seq_printf(m, "clock\t\t: %dMhz\n", gemini_get_clock_speed()); - - return 0; -} - -static u_char gemini_openpic_initsenses[] = { - 1, - 1, - 1, - 1, - 0, - 0, - 1, /* remainder are level-triggered */ -}; - -#define GEMINI_MPIC_ADDR (0xfcfc0000) -#define GEMINI_MPIC_PCI_CFG (0x80005800) - -void __init gemini_openpic_init(void) -{ - - OpenPIC_Addr = (volatile struct OpenPIC *) - grackle_read(GEMINI_MPIC_PCI_CFG + 0x10); - OpenPIC_InitSenses = gemini_openpic_initsenses; - OpenPIC_NumInitSenses = sizeof( gemini_openpic_initsenses ); - - ioremap( GEMINI_MPIC_ADDR, OPENPIC_SIZE); -} - - -extern unsigned long loops_per_jiffy; -extern int root_mountflags; -extern char cmd_line[]; - -void -gemini_heartbeat(void) -{ - static unsigned long led = GEMINI_LEDBASE+(4*8); - static char direction = 8; - - - /* We only want to do this on 1 CPU */ - if (smp_processor_id()) - return; - *(char *)led = 0; - if ( (led + direction) > (GEMINI_LEDBASE+(7*8)) || - (led + direction) < (GEMINI_LEDBASE+(4*8)) ) - direction *= -1; - led += direction; - *(char *)led = 0xff; - ppc_md.heartbeat_count = ppc_md.heartbeat_reset; -} - -void __init gemini_setup_arch(void) -{ - extern char cmd_line[]; - - - loops_per_jiffy = 50000000/HZ; - -#ifdef CONFIG_BLK_DEV_INITRD - /* bootable off CDROM */ - if (initrd_start) - ROOT_DEV = Root_SR0; - else -#endif - ROOT_DEV = Root_SDA1; - - /* nothing but serial consoles... */ - sprintf(cmd_line, "%s console=ttyS0", cmd_line); - - printk("Boot arguments: %s\n", cmd_line); - - ppc_md.heartbeat = gemini_heartbeat; - ppc_md.heartbeat_reset = HZ/8; - ppc_md.heartbeat_count = 1; - - /* Lookup PCI hosts */ - gemini_find_bridges(); - /* take special pains to map the MPIC, since it isn't mapped yet */ - gemini_openpic_init(); - /* start the L2 */ - gemini_init_l2(); -} - - -int -gemini_get_clock_speed(void) -{ - unsigned long hid1, pvr; - int clock; - - pvr = mfspr(SPRN_PVR); - hid1 = (mfspr(SPRN_HID1) >> 28) & 0xf; - if (PVR_VER(pvr) == 8 || - PVR_VER(pvr) == 12) - hid1 = cpu_7xx[hid1]; - else - hid1 = cpu_6xx[hid1]; - - switch((readb(GEMINI_BSTAT) & 0xc) >> 2) { - - case 0: - default: - clock = (hid1*100)/3; - break; - - case 1: - clock = (hid1*125)/3; - break; - - case 2: - clock = (hid1*50); - break; - } - - return clock; -} - -void __init gemini_init_l2(void) -{ - unsigned char reg, brev, fam, creg; - unsigned long cache; - unsigned long pvr; - - reg = readb(GEMINI_L2CFG); - brev = readb(GEMINI_BREV); - fam = readb(GEMINI_FEAT); - pvr = mfspr(SPRN_PVR); - - switch(PVR_VER(pvr)) { - - case 8: - if (reg & 0xc0) - cache = (((reg >> 6) & 0x3) << 28); - else - cache = 0x3 << 28; - -#ifdef CONFIG_SMP - /* Pre-3.0 processor revs had snooping errata. Leave - their L2's disabled with SMP. -- Dan */ - if (PVR_CFG(pvr) < 3) { - printk("Pre-3.0 750; L2 left disabled!\n"); - return; - } -#endif /* CONFIG_SMP */ - - /* Special case: VGM5-B's came before L2 ratios were set on - the board. Processor speed shouldn't be too high, so - set L2 ratio to 1:1.5. */ - if ((brev == 0x51) && ((fam & 0xa0) >> 4) == 0) - reg |= 1; - - /* determine best cache ratio based upon what the board - tells us (which sometimes _may_ not be true) and - the processor speed. */ - else { - if (gemini_get_clock_speed() > 250) - reg = 2; - } - break; - case 12: - { - static unsigned long l2_size_val = 0; - - if (!l2_size_val) - l2_size_val = _get_L2CR(); - cache = l2_size_val; - break; - } - case 4: - case 9: - creg = readb(GEMINI_CPUSTAT); - if (((creg & 0xc) >> 2) != 1) - printk("Dual-604 boards don't support the use of L2\n"); - else - writeb(1, GEMINI_L2CFG); - return; - default: - printk("Unknown processor; L2 left disabled\n"); - return; - } - - cache |= ((1<<reg) << 25); - cache |= (L2CR_L2RAM_MASK|L2CR_L2CTL|L2CR_L2DO); - _set_L2CR(0); - _set_L2CR(cache | L2CR_L2E); - -} - -void -gemini_restart(char *cmd) -{ - local_irq_disable(); - /* make a clean restart, not via the MPIC */ - _gemini_reboot(); - for(;;); -} - -void -gemini_power_off(void) -{ - for(;;); -} - -void -gemini_halt(void) -{ - gemini_restart(NULL); -} - -void __init gemini_init_IRQ(void) -{ - /* gemini has no 8259 */ - openpic_init(1, 0, 0, -1); -} - -#define gemini_rtc_read(x) (readb(GEMINI_RTC+(x))) -#define gemini_rtc_write(val,x) (writeb((val),(GEMINI_RTC+(x)))) - -/* ensure that the RTC is up and running */ -long __init gemini_time_init(void) -{ - unsigned char reg; - - reg = gemini_rtc_read(M48T35_RTC_CONTROL); - - if ( reg & M48T35_RTC_STOPPED ) { - printk(KERN_INFO "M48T35 real-time-clock was stopped. Now starting...\n"); - gemini_rtc_write((reg & ~(M48T35_RTC_STOPPED)), M48T35_RTC_CONTROL); - gemini_rtc_write((reg | M48T35_RTC_SET), M48T35_RTC_CONTROL); - } - return 0; -} - -#undef DEBUG_RTC - -unsigned long -gemini_get_rtc_time(void) -{ - unsigned int year, mon, day, hour, min, sec; - unsigned char reg; - - reg = gemini_rtc_read(M48T35_RTC_CONTROL); - gemini_rtc_write((reg|M48T35_RTC_READ), M48T35_RTC_CONTROL); -#ifdef DEBUG_RTC - printk("get rtc: reg = %x\n", reg); -#endif - - do { - sec = gemini_rtc_read(M48T35_RTC_SECONDS); - min = gemini_rtc_read(M48T35_RTC_MINUTES); - hour = gemini_rtc_read(M48T35_RTC_HOURS); - day = gemini_rtc_read(M48T35_RTC_DOM); - mon = gemini_rtc_read(M48T35_RTC_MONTH); - year = gemini_rtc_read(M48T35_RTC_YEAR); - } while( sec != gemini_rtc_read(M48T35_RTC_SECONDS)); -#ifdef DEBUG_RTC - printk("get rtc: sec=%x, min=%x, hour=%x, day=%x, mon=%x, year=%x\n", - sec, min, hour, day, mon, year); -#endif - - gemini_rtc_write(reg, M48T35_RTC_CONTROL); - - BCD_TO_BIN(sec); - BCD_TO_BIN(min); - BCD_TO_BIN(hour); - BCD_TO_BIN(day); - BCD_TO_BIN(mon); - BCD_TO_BIN(year); - - if ((year += 1900) < 1970) - year += 100; -#ifdef DEBUG_RTC - printk("get rtc: sec=%x, min=%x, hour=%x, day=%x, mon=%x, year=%x\n", - sec, min, hour, day, mon, year); -#endif - - return mktime( year, mon, day, hour, min, sec ); -} - - -int -gemini_set_rtc_time( unsigned long now ) -{ - unsigned char reg; - struct rtc_time tm; - - to_tm( now, &tm ); - - reg = gemini_rtc_read(M48T35_RTC_CONTROL); -#ifdef DEBUG_RTC - printk("set rtc: reg = %x\n", reg); -#endif - - gemini_rtc_write((reg|M48T35_RTC_SET), M48T35_RTC_CONTROL); -#ifdef DEBUG_RTC - printk("set rtc: tm vals - sec=%x, min=%x, hour=%x, mon=%x, mday=%x, year=%x\n", - tm.tm_sec, tm.tm_min, tm.tm_hour, tm.tm_mon, tm.tm_mday, tm.tm_year); -#endif - - tm.tm_year -= 1900; - BIN_TO_BCD(tm.tm_sec); - BIN_TO_BCD(tm.tm_min); - BIN_TO_BCD(tm.tm_hour); - BIN_TO_BCD(tm.tm_mon); - BIN_TO_BCD(tm.tm_mday); - BIN_TO_BCD(tm.tm_year); -#ifdef DEBUG_RTC - printk("set rtc: tm vals - sec=%x, min=%x, hour=%x, mon=%x, mday=%x, year=%x\n", - tm.tm_sec, tm.tm_min, tm.tm_hour, tm.tm_mon, tm.tm_mday, tm.tm_year); -#endif - - gemini_rtc_write(tm.tm_sec, M48T35_RTC_SECONDS); - gemini_rtc_write(tm.tm_min, M48T35_RTC_MINUTES); - gemini_rtc_write(tm.tm_hour, M48T35_RTC_HOURS); - gemini_rtc_write(tm.tm_mday, M48T35_RTC_DOM); - gemini_rtc_write(tm.tm_mon, M48T35_RTC_MONTH); - gemini_rtc_write(tm.tm_year, M48T35_RTC_YEAR); - - /* done writing */ - gemini_rtc_write(reg, M48T35_RTC_CONTROL); - - return 0; -} - -/* use the RTC to determine the decrementer count */ -void __init gemini_calibrate_decr(void) -{ - int freq, divisor; - unsigned char reg; - - /* determine processor bus speed */ - reg = readb(GEMINI_BSTAT); - - switch(((reg & 0x0c)>>2)&0x3) { - case 0: - default: - freq = 66667; - break; - case 1: - freq = 83000; - break; - case 2: - freq = 100000; - break; - } - - freq *= 1000; - divisor = 4; - tb_ticks_per_jiffy = freq / HZ / divisor; - tb_to_us = mulhwu_scale_factor(freq/divisor, 1000000); -} - -unsigned long __init gemini_find_end_of_memory(void) -{ - unsigned long total; - unsigned char reg; - - reg = readb(GEMINI_MEMCFG); - total = ((1<<((reg & 0x7) - 1)) * - (8<<((reg >> 3) & 0x7))); - total *= (1024*1024); - return total; -} - -static void __init -gemini_map_io(void) -{ - io_block_mapping(0xf0000000, 0xf0000000, 0x10000000, _PAGE_IO); - io_block_mapping(0x80000000, 0x80000000, 0x10000000, _PAGE_IO); -} - -#ifdef CONFIG_SMP -static int -smp_gemini_probe(void) -{ - int i, nr; - - nr = (readb(GEMINI_CPUSTAT) & GEMINI_CPU_COUNT_MASK) >> 2; - if (nr == 0) - nr = 4; - - if (nr > 1) { - openpic_request_IPIs(); - for (i = 1; i < nr; ++i) - smp_hw_index[i] = i; - } - - return nr; -} - -static void -smp_gemini_kick_cpu(int nr) -{ - openpic_reset_processor_phys(1 << nr); - openpic_reset_processor_phys(0); -} - -static void -smp_gemini_setup_cpu(int cpu_nr) -{ - if (OpenPIC_Addr) - do_openpic_setup_cpu(); - if (cpu_nr > 0) - gemini_init_l2(); -} - -static struct smp_ops_t gemini_smp_ops = { - smp_openpic_message_pass, - smp_gemini_probe, - smp_gemini_kick_cpu, - smp_gemini_setup_cpu, - .give_timebase = smp_generic_give_timebase, - .take_timebase = smp_generic_take_timebase, -}; -#endif /* CONFIG_SMP */ - -void __init platform_init(unsigned long r3, unsigned long r4, unsigned long r5, - unsigned long r6, unsigned long r7) -{ - int i; - - /* Restore BATs for now */ - mtspr(SPRN_DBAT3U, 0xf0001fff); - mtspr(SPRN_DBAT3L, 0xf000002a); - - parse_bootinfo(find_bootinfo()); - - for(i = 0; i < GEMINI_LEDS; i++) - gemini_led_off(i); - - ISA_DMA_THRESHOLD = 0; - DMA_MODE_READ = 0; - DMA_MODE_WRITE = 0; - -#ifdef CONFIG_BLK_DEV_INITRD - if ( r4 ) - { - initrd_start = r4 + KERNELBASE; - initrd_end = r5 + KERNELBASE; - } -#endif - - ppc_md.setup_arch = gemini_setup_arch; - ppc_md.show_cpuinfo = gemini_show_cpuinfo; - ppc_md.init_IRQ = gemini_init_IRQ; - ppc_md.get_irq = openpic_get_irq; - ppc_md.init = NULL; - - ppc_md.restart = gemini_restart; - ppc_md.power_off = gemini_power_off; - ppc_md.halt = gemini_halt; - - ppc_md.time_init = gemini_time_init; - ppc_md.set_rtc_time = gemini_set_rtc_time; - ppc_md.get_rtc_time = gemini_get_rtc_time; - ppc_md.calibrate_decr = gemini_calibrate_decr; - - ppc_md.find_end_of_memory = gemini_find_end_of_memory; - ppc_md.setup_io_mappings = gemini_map_io; - - ppc_md.pcibios_fixup_bus = gemini_pcibios_fixup; - -#ifdef CONFIG_SMP - smp_ops = &gemini_smp_ops; -#endif /* CONFIG_SMP */ -} |