diff options
Diffstat (limited to 'arch/mips/ddb5xxx/common')
-rw-r--r-- | arch/mips/ddb5xxx/common/Makefile | 5 | ||||
-rw-r--r-- | arch/mips/ddb5xxx/common/nile4.c | 130 | ||||
-rw-r--r-- | arch/mips/ddb5xxx/common/prom.c | 132 | ||||
-rw-r--r-- | arch/mips/ddb5xxx/common/rtc_ds1386.c | 170 |
4 files changed, 0 insertions, 437 deletions
diff --git a/arch/mips/ddb5xxx/common/Makefile b/arch/mips/ddb5xxx/common/Makefile deleted file mode 100644 index bc44e303271..00000000000 --- a/arch/mips/ddb5xxx/common/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# -# Makefile for the common code of NEC DDB-Vrc5xxx board -# - -obj-y += nile4.o prom.o rtc_ds1386.o diff --git a/arch/mips/ddb5xxx/common/nile4.c b/arch/mips/ddb5xxx/common/nile4.c deleted file mode 100644 index 7ec7d903ba9..00000000000 --- a/arch/mips/ddb5xxx/common/nile4.c +++ /dev/null @@ -1,130 +0,0 @@ -/* - * - * Copyright 2001 MontaVista Software Inc. - * Author: jsun@mvista.com or jsun@junsun.net - * - * arch/mips/ddb5xxx/common/nile4.c - * misc low-level routines for vrc-5xxx controllers. - * - * derived from original code by Geert Uytterhoeven <geert@sonycom.com> - * - * 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 <linux/types.h> -#include <linux/kernel.h> - -#include <asm/ddb5xxx/ddb5xxx.h> - -u32 -ddb_calc_pdar(u32 phys, u32 size, int width, - int on_memory_bus, int pci_visible) -{ - u32 maskbits; - u32 widthbits; - - switch (size) { -#if 0 /* We don't support 4 GB yet */ - case 0x100000000: /* 4 GB */ - maskbits = 4; - break; -#endif - case 0x80000000: /* 2 GB */ - maskbits = 5; - break; - case 0x40000000: /* 1 GB */ - maskbits = 6; - break; - case 0x20000000: /* 512 MB */ - maskbits = 7; - break; - case 0x10000000: /* 256 MB */ - maskbits = 8; - break; - case 0x08000000: /* 128 MB */ - maskbits = 9; - break; - case 0x04000000: /* 64 MB */ - maskbits = 10; - break; - case 0x02000000: /* 32 MB */ - maskbits = 11; - break; - case 0x01000000: /* 16 MB */ - maskbits = 12; - break; - case 0x00800000: /* 8 MB */ - maskbits = 13; - break; - case 0x00400000: /* 4 MB */ - maskbits = 14; - break; - case 0x00200000: /* 2 MB */ - maskbits = 15; - break; - case 0: /* OFF */ - maskbits = 0; - break; - default: - panic("nile4_set_pdar: unsupported size %p", (void *) size); - } - switch (width) { - case 8: - widthbits = 0; - break; - case 16: - widthbits = 1; - break; - case 32: - widthbits = 2; - break; - case 64: - widthbits = 3; - break; - default: - panic("nile4_set_pdar: unsupported width %d", width); - } - - return maskbits | (on_memory_bus ? 0x10 : 0) | - (pci_visible ? 0x20 : 0) | (widthbits << 6) | - (phys & 0xffe00000); -} - -void -ddb_set_pdar(u32 pdar, u32 phys, u32 size, int width, - int on_memory_bus, int pci_visible) -{ - u32 temp= ddb_calc_pdar(phys, size, width, on_memory_bus, pci_visible); - ddb_out32(pdar, temp); - ddb_out32(pdar + 4, 0); - - /* - * When programming a PDAR, the register should be read immediately - * after writing it. This ensures that address decoders are properly - * configured. - * [jsun] is this really necessary? - */ - ddb_in32(pdar); - ddb_in32(pdar + 4); -} - -/* - * routines that mess with PCIINITx registers - */ - -void ddb_set_pmr(u32 pmr, u32 type, u32 addr, u32 options) -{ - switch (type) { - case DDB_PCICMD_IACK: /* PCI Interrupt Acknowledge */ - case DDB_PCICMD_IO: /* PCI I/O Space */ - case DDB_PCICMD_MEM: /* PCI Memory Space */ - case DDB_PCICMD_CFG: /* PCI Configuration Space */ - break; - default: - panic("nile4_set_pmr: invalid type %d", type); - } - ddb_out32(pmr, (type << 1) | (addr & 0xffe00000) | options ); - ddb_out32(pmr + 4, 0); -} diff --git a/arch/mips/ddb5xxx/common/prom.c b/arch/mips/ddb5xxx/common/prom.c deleted file mode 100644 index 54a857b5e3b..00000000000 --- a/arch/mips/ddb5xxx/common/prom.c +++ /dev/null @@ -1,132 +0,0 @@ -/* - * Copyright 2001 MontaVista Software Inc. - * Author: jsun@mvista.com or jsun@junsun.net - * - * 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 <linux/init.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/bootmem.h> - -#include <asm/addrspace.h> -#include <asm/bootinfo.h> -#include <asm/ddb5xxx/ddb5xxx.h> -#include <asm/debug.h> - -const char *get_system_type(void) -{ - switch (mips_machtype) { - case MACH_NEC_DDB5477: return "NEC DDB Vrc-5477"; - case MACH_NEC_ROCKHOPPER: return "NEC Rockhopper"; - case MACH_NEC_ROCKHOPPERII: return "NEC RockhopperII"; - default: return "Unknown NEC board"; - } -} - -#if defined(CONFIG_DDB5477) -void ddb5477_runtime_detection(void); -#endif - -/* [jsun@junsun.net] PMON passes arguments in C main() style */ -void __init prom_init(void) -{ - int argc = fw_arg0; - char **arg = (char**) fw_arg1; - int i; - - /* if user passes kernel args, ignore the default one */ - if (argc > 1) - arcs_cmdline[0] = '\0'; - - /* arg[0] is "g", the rest is boot parameters */ - for (i = 1; i < argc; i++) { - if (strlen(arcs_cmdline) + strlen(arg[i] + 1) - >= sizeof(arcs_cmdline)) - break; - strcat(arcs_cmdline, arg[i]); - strcat(arcs_cmdline, " "); - } - - mips_machgroup = MACH_GROUP_NEC_DDB; - -#if defined(CONFIG_DDB5477) - ddb5477_runtime_detection(); - add_memory_region(0, board_ram_size, BOOT_MEM_RAM); -#endif -} - -void __init prom_free_prom_memory(void) -{ -} - -#if defined(CONFIG_DDB5477) - -#define DEFAULT_LCS1_BASE 0x19000000 -#define TESTVAL1 'K' -#define TESTVAL2 'S' - -int board_ram_size; -void ddb5477_runtime_detection(void) -{ - volatile char *test_offset; - char saved_test_byte; - - /* Determine if this is a DDB5477 board, or a BSB-VR0300 - base board. We can tell by checking for the location of - the NVRAM. It lives at the beginning of LCS1 on the DDB5477, - and the beginning of LCS1 on the BSB-VR0300 is flash memory. - The first 2K of the NVRAM are reserved, so don't we'll poke - around just after that. - */ - - /* We can only use the PCI bus to distinquish between - the Rockhopper and RockhopperII backplanes and this must - wait until ddb5477_board_init() in setup.c after the 5477 - is initialized. So, until then handle - both Rockhopper and RockhopperII backplanes as Rockhopper 1 - */ - - test_offset = (char *)KSEG1ADDR(DEFAULT_LCS1_BASE + 0x800); - saved_test_byte = *test_offset; - - *test_offset = TESTVAL1; - if (*test_offset != TESTVAL1) { - /* We couldn't set our test value, so it must not be NVRAM, - so it's a BSB_VR0300 */ - mips_machtype = MACH_NEC_ROCKHOPPER; - } else { - /* We may have gotten lucky, and the TESTVAL1 was already - stored at the test location, so we must check a second - test value */ - *test_offset = TESTVAL2; - if (*test_offset != TESTVAL2) { - /* OK, we couldn't set this value either, so it must - definately be a BSB_VR0300 */ - mips_machtype = MACH_NEC_ROCKHOPPER; - } else { - /* We could change the value twice, so it must be - NVRAM, so it's a DDB_VRC5477 */ - mips_machtype = MACH_NEC_DDB5477; - } - } - /* Restore the original byte */ - *test_offset = saved_test_byte; - - /* before we know a better way, we will trust PMON for getting - * RAM size - */ - board_ram_size = 1 << (36 - (ddb_in32(DDB_SDRAM0) & 0xf)); - - db_run(printk("DDB run-time detection : %s, %d MB RAM\n", - mips_machtype == MACH_NEC_DDB5477 ? - "DDB5477" : "Rockhopper", - board_ram_size >> 20)); - - /* we can't handle ram size > 128 MB */ - db_assert(board_ram_size <= (128 << 20)); -} -#endif diff --git a/arch/mips/ddb5xxx/common/rtc_ds1386.c b/arch/mips/ddb5xxx/common/rtc_ds1386.c deleted file mode 100644 index 5dc34daa715..00000000000 --- a/arch/mips/ddb5xxx/common/rtc_ds1386.c +++ /dev/null @@ -1,170 +0,0 @@ -/* - * Copyright 2001 MontaVista Software Inc. - * Author: jsun@mvista.com or jsun@junsun.net - * - * arch/mips/ddb5xxx/common/rtc_ds1386.c - * low-level RTC hookups for s for Dallas 1396 chip. - * - * 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. - */ - - -/* - * This file exports a function, rtc_ds1386_init(), which expects an - * uncached base address as the argument. It will set the two function - * pointers expected by the MIPS generic timer code. - */ - -#include <linux/types.h> -#include <linux/time.h> -#include <linux/bcd.h> - -#include <asm/time.h> -#include <asm/addrspace.h> - -#include <asm/mc146818rtc.h> -#include <asm/debug.h> - -#define EPOCH 2000 - -#define READ_RTC(x) *(volatile unsigned char*)(rtc_base+x) -#define WRITE_RTC(x, y) *(volatile unsigned char*)(rtc_base+x) = y - -static unsigned long rtc_base; - -static unsigned long -rtc_ds1386_get_time(void) -{ - u8 byte; - u8 temp; - unsigned int year, month, day, hour, minute, second; - unsigned long flags; - - spin_lock_irqsave(&rtc_lock, flags); - /* let us freeze external registers */ - byte = READ_RTC(0xB); - byte &= 0x3f; - WRITE_RTC(0xB, byte); - - /* read time data */ - year = BCD2BIN(READ_RTC(0xA)) + EPOCH; - month = BCD2BIN(READ_RTC(0x9) & 0x1f); - day = BCD2BIN(READ_RTC(0x8)); - minute = BCD2BIN(READ_RTC(0x2)); - second = BCD2BIN(READ_RTC(0x1)); - - /* hour is special - deal with it later */ - temp = READ_RTC(0x4); - - /* enable time transfer */ - byte |= 0x80; - WRITE_RTC(0xB, byte); - spin_unlock_irqrestore(&rtc_lock, flags); - - /* calc hour */ - if (temp & 0x40) { - /* 12 hour format */ - hour = BCD2BIN(temp & 0x1f); - if (temp & 0x20) hour += 12; /* PM */ - } else { - /* 24 hour format */ - hour = BCD2BIN(temp & 0x3f); - } - - return mktime(year, month, day, hour, minute, second); -} - -static int -rtc_ds1386_set_time(unsigned long t) -{ - struct rtc_time tm; - u8 byte; - u8 temp; - u8 year, month, day, hour, minute, second; - unsigned long flags; - - spin_lock_irqsave(&rtc_lock, flags); - /* let us freeze external registers */ - byte = READ_RTC(0xB); - byte &= 0x3f; - WRITE_RTC(0xB, byte); - - /* convert */ - to_tm(t, &tm); - - - /* check each field one by one */ - year = BIN2BCD(tm.tm_year - EPOCH); - if (year != READ_RTC(0xA)) { - WRITE_RTC(0xA, year); - } - - temp = READ_RTC(0x9); - month = BIN2BCD(tm.tm_mon+1); /* tm_mon starts from 0 to 11 */ - if (month != (temp & 0x1f)) { - WRITE_RTC( 0x9, - (month & 0x1f) | (temp & ~0x1f) ); - } - - day = BIN2BCD(tm.tm_mday); - if (day != READ_RTC(0x8)) { - WRITE_RTC(0x8, day); - } - - temp = READ_RTC(0x4); - if (temp & 0x40) { - /* 12 hour format */ - hour = 0x40; - if (tm.tm_hour > 12) { - hour |= 0x20 | (BIN2BCD(hour-12) & 0x1f); - } else { - hour |= BIN2BCD(tm.tm_hour); - } - } else { - /* 24 hour format */ - hour = BIN2BCD(tm.tm_hour) & 0x3f; - } - if (hour != temp) WRITE_RTC(0x4, hour); - - minute = BIN2BCD(tm.tm_min); - if (minute != READ_RTC(0x2)) { - WRITE_RTC(0x2, minute); - } - - second = BIN2BCD(tm.tm_sec); - if (second != READ_RTC(0x1)) { - WRITE_RTC(0x1, second); - } - spin_unlock_irqrestore(&rtc_lock, flags); - - return 0; -} - -void -rtc_ds1386_init(unsigned long base) -{ - unsigned char byte; - - /* remember the base */ - rtc_base = base; - db_assert((rtc_base & 0xe0000000) == KSEG1); - - /* turn on RTC if it is not on */ - byte = READ_RTC(0x9); - if (byte & 0x80) { - byte &= 0x7f; - WRITE_RTC(0x9, byte); - } - - /* enable time transfer */ - byte = READ_RTC(0xB); - byte |= 0x80; - WRITE_RTC(0xB, byte); - - /* set the function pointers */ - rtc_mips_get_time = rtc_ds1386_get_time; - rtc_mips_set_time = rtc_ds1386_set_time; -} |