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path: root/drivers/mtd/devices/phram.c
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Diffstat (limited to 'drivers/mtd/devices/phram.c')
-rw-r--r--drivers/mtd/devices/phram.c66
1 files changed, 33 insertions, 33 deletions
diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c
index 67823de68db..e1f2aebaa48 100644
--- a/drivers/mtd/devices/phram.c
+++ b/drivers/mtd/devices/phram.c
@@ -94,7 +94,7 @@ static void unregister_devices(void)
}
}
-static int register_device(char *name, unsigned long start, unsigned long len)
+static int register_device(char *name, phys_addr_t start, size_t len)
{
struct phram_mtd_list *new;
int ret = -ENOMEM;
@@ -141,35 +141,35 @@ out0:
return ret;
}
-static int ustrtoul(const char *cp, char **endp, unsigned int base)
+static int parse_num64(uint64_t *num64, char *token)
{
- unsigned long result = simple_strtoul(cp, endp, base);
-
- switch (**endp) {
- case 'G':
- result *= 1024;
- case 'M':
- result *= 1024;
- case 'k':
- result *= 1024;
+ size_t len;
+ int shift = 0;
+ int ret;
+
+ len = strlen(token);
/* By dwmw2 editorial decree, "ki", "Mi" or "Gi" are to be used. */
- if ((*endp)[1] == 'i')
- (*endp) += 2;
+ if (len > 2) {
+ if (token[len - 1] == 'i') {
+ switch (token[len - 2]) {
+ case 'G':
+ shift += 10;
+ case 'M':
+ shift += 10;
+ case 'k':
+ shift += 10;
+ token[len - 2] = 0;
+ break;
+ default:
+ return -EINVAL;
+ }
+ }
}
- return result;
-}
-static int parse_num32(uint32_t *num32, const char *token)
-{
- char *endp;
- unsigned long n;
+ ret = kstrtou64(token, 0, num64);
+ *num64 <<= shift;
- n = ustrtoul(token, &endp, 0);
- if (*endp)
- return -EINVAL;
-
- *num32 = n;
- return 0;
+ return ret;
}
static int parse_name(char **pname, const char *token)
@@ -209,19 +209,19 @@ static inline void kill_final_newline(char *str)
* This shall contain the module parameter if any. It is of the form:
* - phram=<device>,<address>,<size> for module case
* - phram.phram=<device>,<address>,<size> for built-in case
- * We leave 64 bytes for the device name, 12 for the address and 12 for the
+ * We leave 64 bytes for the device name, 20 for the address and 20 for the
* size.
* Example: phram.phram=rootfs,0xa0000000,512Mi
*/
-static __initdata char phram_paramline[64+12+12];
+static __initdata char phram_paramline[64 + 20 + 20];
static int __init phram_setup(const char *val)
{
- char buf[64+12+12], *str = buf;
+ char buf[64 + 20 + 20], *str = buf;
char *token[3];
char *name;
- uint32_t start;
- uint32_t len;
+ uint64_t start;
+ uint64_t len;
int i, ret;
if (strnlen(val, sizeof(buf)) >= sizeof(buf))
@@ -243,13 +243,13 @@ static int __init phram_setup(const char *val)
if (ret)
return ret;
- ret = parse_num32(&start, token[1]);
+ ret = parse_num64(&start, token[1]);
if (ret) {
kfree(name);
parse_err("illegal start address\n");
}
- ret = parse_num32(&len, token[2]);
+ ret = parse_num64(&len, token[2]);
if (ret) {
kfree(name);
parse_err("illegal device length\n");
@@ -257,7 +257,7 @@ static int __init phram_setup(const char *val)
ret = register_device(name, start, len);
if (!ret)
- pr_info("%s device: %#x at %#x\n", name, len, start);
+ pr_info("%s device: %#llx at %#llx\n", name, len, start);
else
kfree(name);