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author | Sam Ravnborg <sam@ravnborg.org> | 2008-12-03 12:08:37 +0100 |
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committer | David S. Miller <davem@davemloft.net> | 2008-12-04 18:17:20 +0100 |
commit | d670bd4f803c8b646acd20f3ba21e65458293faf (patch) | |
tree | eabc30aadce1556023c4aa445c649ba9e1d3f352 /arch/sparc/kernel/idprom_32.c | |
parent | sparc,sparc64: unify lib/ (diff) | |
download | linux-d670bd4f803c8b646acd20f3ba21e65458293faf.tar.xz linux-d670bd4f803c8b646acd20f3ba21e65458293faf.zip |
sparc: prepare kernel/ for unification
o sparc32 files with identical names to sparc64 renamed to <name>_32.S
o introduced a few Kconfig helpers to simplify Makefile logic
o refactored Makefile to prepare for unification
- use obj-$(CONFIG_SPARC32) for sparc32 specific files
- use <name>_$(BITS) for files where sparc64 has a _64 variant
- sparc64 directly include a few files where sparc32 builds them,
refer to these files directly (no BITS)
- sneaked in -Werror as used by sparc64
o modified sparc/Makefile to use the new names for head/init_task
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/kernel/idprom_32.c')
-rw-r--r-- | arch/sparc/kernel/idprom_32.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/arch/sparc/kernel/idprom_32.c b/arch/sparc/kernel/idprom_32.c new file mode 100644 index 000000000000..223a6582e1e2 --- /dev/null +++ b/arch/sparc/kernel/idprom_32.c @@ -0,0 +1,100 @@ +/* + * idprom.c: Routines to load the idprom into kernel addresses and + * interpret the data contained within. + * + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/init.h> + +#include <asm/oplib.h> +#include <asm/idprom.h> +#include <asm/machines.h> /* Fun with Sun released architectures. */ + +struct idprom *idprom; +static struct idprom idprom_buffer; + +/* Here is the master table of Sun machines which use some implementation + * of the Sparc CPU and have a meaningful IDPROM machtype value that we + * know about. See asm-sparc/machines.h for empirical constants. + */ +static struct Sun_Machine_Models Sun_Machines[NUM_SUN_MACHINES] = { +/* First, Sun4's */ +{ "Sun 4/100 Series", (SM_SUN4 | SM_4_110) }, +{ "Sun 4/200 Series", (SM_SUN4 | SM_4_260) }, +{ "Sun 4/300 Series", (SM_SUN4 | SM_4_330) }, +{ "Sun 4/400 Series", (SM_SUN4 | SM_4_470) }, +/* Now, Sun4c's */ +{ "Sun4c SparcStation 1", (SM_SUN4C | SM_4C_SS1) }, +{ "Sun4c SparcStation IPC", (SM_SUN4C | SM_4C_IPC) }, +{ "Sun4c SparcStation 1+", (SM_SUN4C | SM_4C_SS1PLUS) }, +{ "Sun4c SparcStation SLC", (SM_SUN4C | SM_4C_SLC) }, +{ "Sun4c SparcStation 2", (SM_SUN4C | SM_4C_SS2) }, +{ "Sun4c SparcStation ELC", (SM_SUN4C | SM_4C_ELC) }, +{ "Sun4c SparcStation IPX", (SM_SUN4C | SM_4C_IPX) }, +/* Finally, early Sun4m's */ +{ "Sun4m SparcSystem600", (SM_SUN4M | SM_4M_SS60) }, +{ "Sun4m SparcStation10/20", (SM_SUN4M | SM_4M_SS50) }, +{ "Sun4m SparcStation5", (SM_SUN4M | SM_4M_SS40) }, +/* One entry for the OBP arch's which are sun4d, sun4e, and newer sun4m's */ +{ "Sun4M OBP based system", (SM_SUN4M_OBP | 0x0) } }; + +static void __init display_system_type(unsigned char machtype) +{ + char sysname[128]; + register int i; + + for (i = 0; i < NUM_SUN_MACHINES; i++) { + if(Sun_Machines[i].id_machtype == machtype) { + if (machtype != (SM_SUN4M_OBP | 0x00) || + prom_getproperty(prom_root_node, "banner-name", + sysname, sizeof(sysname)) <= 0) + printk("TYPE: %s\n", Sun_Machines[i].name); + else + printk("TYPE: %s\n", sysname); + return; + } + } + + prom_printf("IDPROM: Bogus id_machtype value, 0x%x\n", machtype); + prom_halt(); +} + +/* Calculate the IDPROM checksum (xor of the data bytes). */ +static unsigned char __init calc_idprom_cksum(struct idprom *idprom) +{ + unsigned char cksum, i, *ptr = (unsigned char *)idprom; + + for (i = cksum = 0; i <= 0x0E; i++) + cksum ^= *ptr++; + + return cksum; +} + +/* Create a local IDPROM copy, verify integrity, and display information. */ +void __init idprom_init(void) +{ + prom_get_idprom((char *) &idprom_buffer, sizeof(idprom_buffer)); + + idprom = &idprom_buffer; + + if (idprom->id_format != 0x01) { + prom_printf("IDPROM: Unknown format type!\n"); + prom_halt(); + } + + if (idprom->id_cksum != calc_idprom_cksum(idprom)) { + prom_printf("IDPROM: Checksum failure (nvram=%x, calc=%x)!\n", + idprom->id_cksum, calc_idprom_cksum(idprom)); + prom_halt(); + } + + display_system_type(idprom->id_machtype); + + printk("Ethernet address: %x:%x:%x:%x:%x:%x\n", + idprom->id_ethaddr[0], idprom->id_ethaddr[1], + idprom->id_ethaddr[2], idprom->id_ethaddr[3], + idprom->id_ethaddr[4], idprom->id_ethaddr[5]); +} |