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authorRalf Baechle <ralf@linux-mips.org>2010-10-19 13:32:41 -0400
committerRalf Baechle <ralf@linux-mips.org>2010-10-19 13:32:41 -0400
commitd39e072166493cbae3840ecfcf2b34bea0d2bebe (patch)
tree34d09502d8f1fe372f01a4ccf5e4825925ed0588 /lib/decompress.c
parent6cc0cc4a35337b48e09c82c5f3fb83534884fca8 (diff)
MAINTAINERS: Change list for ioc_serial to linux-serial.
IOC3 is also being used on SGI MIPS systems but this particular driver is only being used on IA64 systems so linux-mips made no sense as a list. Pat also thinks linux-serial@vger.kernel.org is the better list. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'lib/decompress.c')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.2 (git 2.25.0) at 2025-10-22 12:32:35 -0400
279 280 281 282 
/*
 * Carsten Langgaard, carstenl@mips.com
 * Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
 *
 *  This program is free software; you can distribute it and/or modify it
 *  under the terms of the GNU General Public License (Version 2) as
 *  published by the Free Software Foundation.
 *
 *  This program is distributed in the hope it will be useful, but WITHOUT
 *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 *  for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
 *
 * Putting things on the screen/serial line using YAMONs facilities.
 */
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/serial_reg.h>
#include <linux/spinlock.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/io.h>
#include <asm/bootinfo.h>

#include <asm/mach-ar7/ar7.h>
#include <asm/mach-ar7/prom.h>

#define MAX_ENTRY 80

struct env_var {
	char *name;
	char *value;
};

static struct env_var adam2_env[MAX_ENTRY];

char *prom_getenv(const char *name)
{
	int i;
	for (i = 0; (i < MAX_ENTRY) && adam2_env[i].name; i++)
		if (!strcmp(name, adam2_env[i].name))
			return adam2_env[i].value;

	return NULL;
}
EXPORT_SYMBOL(prom_getenv);

char * __init prom_getcmdline(void)
{
	return &(arcs_cmdline[0]);
}

static void  __init ar7_init_cmdline(int argc, char *argv[])
{
	char *cp;
	int actr;

	actr = 1; /* Always ignore argv[0] */

	cp = &(arcs_cmdline[0]);
	while (actr < argc) {
		strcpy(cp, argv[actr]);
		cp += strlen(argv[actr]);
		*cp++ = ' ';
		actr++;
	}
	if (cp != &(arcs_cmdline[0])) {
		/* get rid of trailing space */
		--cp;
		*cp = '\0';
	}
}

struct psbl_rec {
	u32 psbl_size;
	u32 env_base;
	u32 env_size;
	u32 ffs_base;
	u32 ffs_size;
};

static __initdata char psp_env_version[] = "TIENV0.8";

struct psp_env_chunk {
	u8 num;
	u8 ctrl;
	u16 csum;
	u8 len;
	char data[11];
} __attribute__ ((packed));

struct psp_var_map_entry {
	u8 num;
	char *value;
};

static struct psp_var_map_entry psp_var_map[] = {
	{ 1, "cpufrequency" },
	{ 2, "memsize" },
	{ 3, "flashsize" },
	{ 4, "modetty0" },
	{ 5, "modetty1" },
	{ 8, "maca" },
	{ 9, "macb" },
	{ 28, "sysfrequency" },
	{ 38, "mipsfrequency" },
};

/*

Well-known variable (num is looked up in table above for matching variable name)
Example: cpufrequency=211968000
+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---
| 01 |CTRL|CHECKSUM | 01 | _2 | _1 | _1 | _9 | _6 | _8 | _0 | _0 | _0 | \0 | FF
+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---

Name=Value pair in a single chunk
Example: NAME=VALUE
+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---
| 00 |CTRL|CHECKSUM | 01 | _N | _A | _M | _E | _0 | _V | _A | _L | _U | _E | \0
+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---

Name=Value pair in 2 chunks (len is the number of chunks)
Example: bootloaderVersion=1.3.7.15
+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---
| 00 |CTRL|CHECKSUM | 02 | _b | _o | _o | _t | _l | _o | _a | _d | _e | _r | _V
+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---
| _e | _r | _s | _i | _o | _n | \0 | _1 | _. | _3 | _. | _7 | _. | _1 | _5 | \0
+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---

Data is padded with 0xFF

*/

#define PSP_ENV_SIZE  4096

static char psp_env_data[PSP_ENV_SIZE] = { 0, };

static char * __init lookup_psp_var_map(u8 num)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(psp_var_map); i++)
		if (psp_var_map[i].num == num)
			return psp_var_map[i].value;

	return NULL;
}

static void __init add_adam2_var(char *name, char *value)
{
	int i;