diff options
author | Mike Frysinger <michael.frysinger@analog.com> | 2007-12-24 03:54:48 -0500 |
---|---|---|
committer | Bryan Wu <bryan.wu@analog.com> | 2007-12-24 03:54:48 -0500 |
commit | 1545a1111a02b5aafe6f141e133a6269c5741285 (patch) | |
tree | f018c4b0c074c3e9ed72d887d74948a88165a9c5 /arch/blackfin/kernel | |
parent | 54a1668ce53fe701f1d36651b591ced388e97275 (diff) |
[Blackfin] arch: add support for BF523/BF524/BF526
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Diffstat (limited to 'arch/blackfin/kernel')
-rw-r--r-- | arch/blackfin/kernel/bfin_gpio.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c index ce85d4bf34ca..ea13d2a22d69 100644 --- a/arch/blackfin/kernel/bfin_gpio.c +++ b/arch/blackfin/kernel/bfin_gpio.c | |||
@@ -83,6 +83,7 @@ | |||
83 | #include <linux/delay.h> | 83 | #include <linux/delay.h> |
84 | #include <linux/module.h> | 84 | #include <linux/module.h> |
85 | #include <linux/err.h> | 85 | #include <linux/err.h> |
86 | #include <linux/proc_fs.h> | ||
86 | #include <asm/blackfin.h> | 87 | #include <asm/blackfin.h> |
87 | #include <asm/gpio.h> | 88 | #include <asm/gpio.h> |
88 | #include <asm/portmux.h> | 89 | #include <asm/portmux.h> |
@@ -1194,3 +1195,36 @@ void bfin_gpio_reset_spi0_ssel1(void) | |||
1194 | } | 1195 | } |
1195 | 1196 | ||
1196 | #endif /*BF548_FAMILY */ | 1197 | #endif /*BF548_FAMILY */ |
1198 | |||
1199 | #if defined(CONFIG_PROC_FS) | ||
1200 | static int gpio_proc_read(char *buf, char **start, off_t offset, | ||
1201 | int len, int *unused_i, void *unused_v) | ||
1202 | { | ||
1203 | int c, outlen = 0; | ||
1204 | |||
1205 | for (c = 0; c < MAX_RESOURCES; c++) { | ||
1206 | if (!check_gpio(c) && (reserved_gpio_map[gpio_bank(c)] & gpio_bit(c))) | ||
1207 | len = sprintf(buf, "GPIO_%d: %s \tGPIO %s\n", c, | ||
1208 | get_label(c), get_gpio_dir(c) ? "OUTPUT" : "INPUT"); | ||
1209 | else if (reserved_peri_map[gpio_bank(c)] & gpio_bit(c)) | ||
1210 | len = sprintf(buf, "GPIO_%d: %s \tPeripheral\n", c, get_label(c)); | ||
1211 | else | ||
1212 | continue; | ||
1213 | buf += len; | ||
1214 | outlen += len; | ||
1215 | } | ||
1216 | return outlen; | ||
1217 | } | ||
1218 | |||
1219 | static __init int gpio_register_proc(void) | ||
1220 | { | ||
1221 | struct proc_dir_entry *proc_gpio; | ||
1222 | |||
1223 | proc_gpio = create_proc_entry("gpio", S_IRUGO, NULL); | ||
1224 | if (proc_gpio) | ||
1225 | proc_gpio->read_proc = gpio_proc_read; | ||
1226 | return proc_gpio != NULL; | ||
1227 | } | ||
1228 | |||
1229 | __initcall(gpio_register_proc); | ||
1230 | #endif | ||