summaryrefslogtreecommitdiff
path: root/drivers/power/reset/brcmstb-reboot.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/power/reset/brcmstb-reboot.c')
-rw-r--r--drivers/power/reset/brcmstb-reboot.c41
1 files changed, 34 insertions, 7 deletions
diff --git a/drivers/power/reset/brcmstb-reboot.c b/drivers/power/reset/brcmstb-reboot.c
index 100606f9b3dc..884b53c483c0 100644
--- a/drivers/power/reset/brcmstb-reboot.c
+++ b/drivers/power/reset/brcmstb-reboot.c
@@ -11,6 +11,7 @@
* GNU General Public License for more details.
*/
+#include <linux/bitops.h>
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/init.h>
@@ -34,13 +35,20 @@ static struct regmap *regmap;
static u32 rst_src_en;
static u32 sw_mstr_rst;
+struct reset_reg_mask {
+ u32 rst_src_en_mask;
+ u32 sw_mstr_rst_mask;
+};
+
+static const struct reset_reg_mask *reset_masks;
+
static int brcmstb_restart_handler(struct notifier_block *this,
unsigned long mode, void *cmd)
{
int rc;
u32 tmp;
- rc = regmap_write(regmap, rst_src_en, 1);
+ rc = regmap_write(regmap, rst_src_en, reset_masks->rst_src_en_mask);
if (rc) {
pr_err("failed to write rst_src_en (%d)\n", rc);
return NOTIFY_DONE;
@@ -52,7 +60,7 @@ static int brcmstb_restart_handler(struct notifier_block *this,
return NOTIFY_DONE;
}
- rc = regmap_write(regmap, sw_mstr_rst, 1);
+ rc = regmap_write(regmap, sw_mstr_rst, reset_masks->sw_mstr_rst_mask);
if (rc) {
pr_err("failed to write sw_mstr_rst (%d)\n", rc);
return NOTIFY_DONE;
@@ -75,10 +83,34 @@ static struct notifier_block brcmstb_restart_nb = {
.priority = 128,
};
+static const struct reset_reg_mask reset_bits_40nm = {
+ .rst_src_en_mask = BIT(0),
+ .sw_mstr_rst_mask = BIT(0),
+};
+
+static const struct reset_reg_mask reset_bits_65nm = {
+ .rst_src_en_mask = BIT(3),
+ .sw_mstr_rst_mask = BIT(31),
+};
+
+static const struct of_device_id of_match[] = {
+ { .compatible = "brcm,brcmstb-reboot", .data = &reset_bits_40nm },
+ { .compatible = "brcm,bcm7038-reboot", .data = &reset_bits_65nm },
+ {},
+};
+
static int brcmstb_reboot_probe(struct platform_device *pdev)
{
int rc;
struct device_node *np = pdev->dev.of_node;
+ const struct of_device_id *of_id;
+
+ of_id = of_match_node(of_match, np);
+ if (!of_id) {
+ pr_err("failed to look up compatible string\n");
+ return -EINVAL;
+ }
+ reset_masks = of_id->data;
regmap = syscon_regmap_lookup_by_phandle(np, "syscon");
if (IS_ERR(regmap)) {
@@ -108,11 +140,6 @@ static int brcmstb_reboot_probe(struct platform_device *pdev)
return rc;
}
-static const struct of_device_id of_match[] = {
- { .compatible = "brcm,brcmstb-reboot", },
- {},
-};
-
static struct platform_driver brcmstb_reboot_driver = {
.probe = brcmstb_reboot_probe,
.driver = {