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-rw-r--r--arch/blackfin/kernel/cplbinfo.c180
1 files changed, 0 insertions, 180 deletions
diff --git a/arch/blackfin/kernel/cplbinfo.c b/arch/blackfin/kernel/cplbinfo.c
deleted file mode 100644
index 5b80d59e66e5..000000000000
--- a/arch/blackfin/kernel/cplbinfo.c
+++ /dev/null
@@ -1,180 +0,0 @@
-/*
- * arch/blackfin/kernel/cplbinfo.c - display CPLB status
- *
- * Copyright 2004-2008 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/ctype.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/uaccess.h>
-
-#include <asm/cplbinit.h>
-#include <asm/blackfin.h>
-
-static char const page_strtbl[][4] = {
- "1K", "4K", "1M", "4M",
-#ifdef CONFIG_BF60x
- "16K", "64K", "16M", "64M",
-#endif
-};
-#define page(flags) (((flags) & 0x70000) >> 16)
-#define strpage(flags) page_strtbl[page(flags)]
-
-struct cplbinfo_data {
- loff_t pos;
- char cplb_type;
- u32 mem_control;
- struct cplb_entry *tbl;
- int switched;
-};
-
-static void cplbinfo_print_header(struct seq_file *m)
-{
- seq_printf(m, "Index\tAddress\t\tData\tSize\tU/RD\tU/WR\tS/WR\tSwitch\n");
-}
-
-static int cplbinfo_nomore(struct cplbinfo_data *cdata)
-{
- return cdata->pos >= MAX_CPLBS;
-}
-
-static int cplbinfo_show(struct seq_file *m, void *p)
-{
- struct cplbinfo_data *cdata;
- unsigned long data, addr;
- loff_t pos;
-
- cdata = p;
- pos = cdata->pos;
- addr = cdata->tbl[pos].addr;
- data = cdata->tbl[pos].data;
-
- seq_printf(m,
- "%d\t0x%08lx\t%05lx\t%s\t%c\t%c\t%c\t%c\n",
- (int)pos, addr, data, strpage(data),
- (data & CPLB_USER_RD) ? 'Y' : 'N',
- (data & CPLB_USER_WR) ? 'Y' : 'N',
- (data & CPLB_SUPV_WR) ? 'Y' : 'N',
- pos < cdata->switched ? 'N' : 'Y');
-
- return 0;
-}
-
-static void cplbinfo_seq_init(struct cplbinfo_data *cdata, unsigned int cpu)
-{
- if (cdata->cplb_type == 'I') {
- cdata->mem_control = bfin_read_IMEM_CONTROL();
- cdata->tbl = icplb_tbl[cpu];
- cdata->switched = first_switched_icplb;
- } else {
- cdata->mem_control = bfin_read_DMEM_CONTROL();
- cdata->tbl = dcplb_tbl[cpu];
- cdata->switched = first_switched_dcplb;
- }
-}
-
-static void *cplbinfo_start(struct seq_file *m, loff_t *pos)
-{
- struct cplbinfo_data *cdata = m->private;
-
- if (!*pos) {
- seq_printf(m, "%cCPLBs are %sabled: 0x%x\n", cdata->cplb_type,
- (cdata->mem_control & ENDCPLB ? "en" : "dis"),
- cdata->mem_control);
- cplbinfo_print_header(m);
- } else if (cplbinfo_nomore(cdata))
- return NULL;
-
- get_cpu();
- return cdata;
-}
-
-static void *cplbinfo_next(struct seq_file *m, void *p, loff_t *pos)
-{
- struct cplbinfo_data *cdata = p;
- cdata->pos = ++(*pos);
- if (cplbinfo_nomore(cdata))
- return NULL;
- else
- return cdata;
-}
-
-static void cplbinfo_stop(struct seq_file *m, void *p)
-{
- put_cpu();
-}
-
-static const struct seq_operations cplbinfo_sops = {
- .start = cplbinfo_start,
- .next = cplbinfo_next,
- .stop = cplbinfo_stop,
- .show = cplbinfo_show,
-};
-
-#define CPLBINFO_DCPLB_FLAG 0x80000000
-
-static int cplbinfo_open(struct inode *inode, struct file *file)
-{
- char cplb_type;
- unsigned int cpu = (unsigned long)PDE_DATA(file_inode(file));
- int ret;
- struct seq_file *m;
- struct cplbinfo_data *cdata;
-
- cplb_type = cpu & CPLBINFO_DCPLB_FLAG ? 'D' : 'I';
- cpu &= ~CPLBINFO_DCPLB_FLAG;
-
- if (!cpu_online(cpu))
- return -ENODEV;
-
- ret = seq_open_private(file, &cplbinfo_sops, sizeof(*cdata));
- if (ret)
- return ret;
- m = file->private_data;
- cdata = m->private;
-
- cdata->pos = 0;
- cdata->cplb_type = cplb_type;
- cplbinfo_seq_init(cdata, cpu);
-
- return 0;
-}
-
-static const struct file_operations cplbinfo_fops = {
- .open = cplbinfo_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_private,
-};
-
-static int __init cplbinfo_init(void)
-{
- struct proc_dir_entry *cplb_dir, *cpu_dir;
- char buf[10];
- unsigned int cpu;
-
- cplb_dir = proc_mkdir("cplbinfo", NULL);
- if (!cplb_dir)
- return -ENOMEM;
-
- for_each_possible_cpu(cpu) {
- sprintf(buf, "cpu%i", cpu);
- cpu_dir = proc_mkdir(buf, cplb_dir);
- if (!cpu_dir)
- return -ENOMEM;
-
- proc_create_data("icplb", S_IRUGO, cpu_dir, &cplbinfo_fops,
- (void *)cpu);
- proc_create_data("dcplb", S_IRUGO, cpu_dir, &cplbinfo_fops,
- (void *)(cpu | CPLBINFO_DCPLB_FLAG));
- }
-
- return 0;
-}
-late_initcall(cplbinfo_init);