From a5fc9c0bbee8b91025993a49a9176a88380aef3c Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Fri, 1 Jul 2005 16:10:40 +0000 Subject: Use physical addresses at the interface level, letting drivers remap them as appropriate. Signed-off-by: Ralf Baechle --- drivers/tc/tc.c | 80 ++++++++++++++++++++++++++------------------------------- drivers/tc/zs.c | 20 +++++---------- 2 files changed, 43 insertions(+), 57 deletions(-) (limited to 'drivers/tc') diff --git a/drivers/tc/tc.c b/drivers/tc/tc.c index d742c3a90b23..a0e5af638e0e 100644 --- a/drivers/tc/tc.c +++ b/drivers/tc/tc.c @@ -10,31 +10,29 @@ * Copyright (c) Harald Koerfgen, 1998 * Copyright (c) 2001, 2003, 2005 Maciej W. Rozycki */ -#include #include -#include #include #include +#include +#include #include +#include #include +#include +#include + #include #include #include #include #include -#include -#include - -#define TC_DEBUG MODULE_LICENSE("GPL"); slot_info tc_bus[MAX_SLOT]; static int num_tcslots; static tcinfo *info; -unsigned long system_base; - /* * Interface to the world. Read comment in include/asm-mips/tc.h. */ @@ -97,13 +95,16 @@ unsigned long get_tc_speed(void) static void __init tc_probe(unsigned long startaddr, unsigned long size, int slots) { + unsigned long slotaddr; int i, slot, err; long offset; - unsigned char pattern[4]; - unsigned char *module; + u8 pattern[4]; + volatile u8 *module; for (slot = 0; slot < slots; slot++) { - module = (char *)(startaddr + slot * size); + slotaddr = startaddr + slot * size; + module = ioremap_nocache(slotaddr, size); + BUG_ON(!module); offset = OLDCARD; @@ -112,8 +113,10 @@ static void __init tc_probe(unsigned long startaddr, unsigned long size, err |= get_dbe(pattern[1], module + OLDCARD + TC_PATTERN1); err |= get_dbe(pattern[2], module + OLDCARD + TC_PATTERN2); err |= get_dbe(pattern[3], module + OLDCARD + TC_PATTERN3); - if (err) + if (err) { + iounmap(module); continue; + } if (pattern[0] != 0x55 || pattern[1] != 0x00 || pattern[2] != 0xaa || pattern[3] != 0xff) { @@ -124,16 +127,20 @@ static void __init tc_probe(unsigned long startaddr, unsigned long size, err |= get_dbe(pattern[1], module + TC_PATTERN1); err |= get_dbe(pattern[2], module + TC_PATTERN2); err |= get_dbe(pattern[3], module + TC_PATTERN3); - if (err) + if (err) { + iounmap(module); continue; + } } if (pattern[0] != 0x55 || pattern[1] != 0x00 || - pattern[2] != 0xaa || pattern[3] != 0xff) + pattern[2] != 0xaa || pattern[3] != 0xff) { + iounmap(module); continue; + } - tc_bus[slot].base_addr = (unsigned long)module; - for(i = 0; i < 8; i++) { + tc_bus[slot].base_addr = slotaddr; + for (i = 0; i < 8; i++) { tc_bus[slot].firmware[i] = module[TC_FIRM_VER + offset + 4 * i]; tc_bus[slot].vendor[i] = @@ -171,6 +178,8 @@ static void __init tc_probe(unsigned long startaddr, unsigned long size, tc_bus[slot].interrupt = -1; break; } + + iounmap(module); } } @@ -196,8 +205,8 @@ static int __init tc_init(void) tc_bus[i].flags = FREE; } - info = (tcinfo *) rex_gettcinfo(); - slot0addr = (unsigned long)CKSEG1ADDR(rex_slot_address(0)); + info = rex_gettcinfo(); + slot0addr = CPHYSADDR((long)rex_slot_address(0)); switch (mips_machtype) { case MACH_DS5000_200: @@ -216,35 +225,21 @@ static int __init tc_init(void) tc_clock = 10000 / info->clk_period; - if (TURBOCHANNEL && info->slot_size && slot0addr) { - printk("TURBOchannel rev. %1d at %2d.%1d MHz ", info->revision, - tc_clock / 10, tc_clock % 10); - printk("(with%s parity)\n", info->parity ? "" : "out"); + if (info->slot_size && slot0addr) { + pr_info("TURBOchannel rev. %d at %d.%d MHz (with%s parity)\n", + info->revision, tc_clock / 10, tc_clock % 10, + info->parity ? "" : "out"); slot_size = info->slot_size << 20; tc_probe(slot0addr, slot_size, num_tcslots); - /* - * All TURBOchannel DECstations have the onboard devices - * where the (num_tcslots + 0 or 1 on DS5k/xx) Option Module - * would be. - */ - if(mips_machtype == MACH_DS5000_XX) - i = 1; - else - i = 0; - - system_base = slot0addr + slot_size * (num_tcslots + i); - -#ifdef TC_DEBUG - for (i = 0; i < num_tcslots; i++) - if (tc_bus[i].base_addr) { - printk(" slot %d: ", i); - printk("%s %s %s\n", tc_bus[i].vendor, - tc_bus[i].name, tc_bus[i].firmware); - } -#endif + for (i = 0; i < num_tcslots; i++) { + if (!tc_bus[i].base_addr) + continue; + pr_info(" slot %d: %s %s %s\n", i, tc_bus[i].vendor, + tc_bus[i].name, tc_bus[i].firmware); + } } return 0; @@ -258,4 +253,3 @@ EXPORT_SYMBOL(release_tc_card); EXPORT_SYMBOL(get_tc_base_addr); EXPORT_SYMBOL(get_tc_irq_nr); EXPORT_SYMBOL(get_tc_speed); -EXPORT_SYMBOL(system_base); diff --git a/drivers/tc/zs.c b/drivers/tc/zs.c index 0e302ae5924c..c52af73a251b 100644 --- a/drivers/tc/zs.c +++ b/drivers/tc/zs.c @@ -65,14 +65,14 @@ #include #include #include -#include -#ifdef CONFIG_MACH_DECSTATION #include +#include #include +#include +#include #include -#include -#endif + #ifdef CONFIG_KGDB #include #endif @@ -1616,30 +1616,22 @@ static void __init probe_sccs(void) return; } - /* - * When serial console is activated, tc_init has not been called yet - * and system_base is undefined. Unfortunately we have to hardcode - * system_base for this case :-(. HK - */ switch(mips_machtype) { #ifdef CONFIG_MACH_DECSTATION case MACH_DS5000_2X0: case MACH_DS5900: - system_base = CKSEG1ADDR(0x1f800000); n_chips = 2; zs_parms = &ds_parms; zs_parms->irq0 = dec_interrupt[DEC_IRQ_SCC0]; zs_parms->irq1 = dec_interrupt[DEC_IRQ_SCC1]; break; case MACH_DS5000_1XX: - system_base = CKSEG1ADDR(0x1c000000); n_chips = 2; zs_parms = &ds_parms; zs_parms->irq0 = dec_interrupt[DEC_IRQ_SCC0]; zs_parms->irq1 = dec_interrupt[DEC_IRQ_SCC1]; break; case MACH_DS5000_XX: - system_base = CKSEG1ADDR(0x1c000000); n_chips = 1; zs_parms = &ds_parms; zs_parms->irq0 = dec_interrupt[DEC_IRQ_SCC0]; @@ -1661,10 +1653,10 @@ static void __init probe_sccs(void) * The sccs reside on the high byte of the 16 bit IOBUS */ zs_channels[n_channels].control = - (volatile unsigned char *)system_base + + (volatile void *)CKSEG1ADDR(dec_kn_slot_base + (0 == chip ? zs_parms->scc0 : zs_parms->scc1) + (0 == channel ? zs_parms->channel_a_offset : - zs_parms->channel_b_offset); + zs_parms->channel_b_offset)); zs_channels[n_channels].data = zs_channels[n_channels].control + 4; -- cgit v1.2.3-59-g8ed1b