diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2016-01-25 09:29:53 +0100 |
|---|---|---|
| committer | Sebastian Reichel <sre@kernel.org> | 2016-02-15 05:45:22 +0100 |
| commit | 3f652c969dd223a6ff1df6e9a7052b0424a14167 (patch) | |
| tree | 5e3014a2d18f8db02a6e4763b4a59be8ab3c05d4 /drivers | |
| parent | 5b7a0187391fe9b48eec532bf0b4b814d491d5f5 (diff) | |
| download | linux-3f652c969dd223a6ff1df6e9a7052b0424a14167.tar.bz2 | |
power/reset: versatile: support the actual versatile
While this driver is named after the Versatile family of
boards (ARM reference designs) the machine actually called
Versatile was not supported. This patch makes the driver
handle also that machine. We augment the register names for
the reset to *VERSATILE* as well since it is the same
register offsets for Versatile and RealView.
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/power/reset/arm-versatile-reboot.c | 39 |
1 files changed, 27 insertions, 12 deletions
diff --git a/drivers/power/reset/arm-versatile-reboot.c b/drivers/power/reset/arm-versatile-reboot.c index b208073c887d..06d34ab47df5 100644 --- a/drivers/power/reset/arm-versatile-reboot.c +++ b/drivers/power/reset/arm-versatile-reboot.c @@ -18,8 +18,8 @@ #define INTEGRATOR_HDR_LOCK_OFFSET 0x14 #define INTEGRATOR_CM_CTRL_RESET (1 << 3) -#define REALVIEW_SYS_LOCK_OFFSET 0x20 -#define REALVIEW_SYS_RESETCTL_OFFSET 0x40 +#define VERSATILE_SYS_LOCK_OFFSET 0x20 +#define VERSATILE_SYS_RESETCTL_OFFSET 0x40 /* Magic unlocking token used on all Versatile boards */ #define VERSATILE_LOCK_VAL 0xA05F @@ -29,6 +29,7 @@ */ enum versatile_reboot { INTEGRATOR_REBOOT_CM, + VERSATILE_REBOOT_CM, REALVIEW_REBOOT_EB, REALVIEW_REBOOT_PB1176, REALVIEW_REBOOT_PB11MP, @@ -46,6 +47,10 @@ static const struct of_device_id versatile_reboot_of_match[] = { .data = (void *)INTEGRATOR_REBOOT_CM }, { + .compatible = "arm,core-module-versatile", + .data = (void *)VERSATILE_REBOOT_CM, + }, + { .compatible = "arm,realview-eb-syscon", .data = (void *)REALVIEW_REBOOT_EB, }, @@ -82,33 +87,43 @@ static int versatile_reboot(struct notifier_block *this, unsigned long mode, INTEGRATOR_CM_CTRL_RESET, INTEGRATOR_CM_CTRL_RESET); break; + case VERSATILE_REBOOT_CM: + regmap_write(syscon_regmap, VERSATILE_SYS_LOCK_OFFSET, + VERSATILE_LOCK_VAL); + regmap_update_bits(syscon_regmap, + VERSATILE_SYS_RESETCTL_OFFSET, + 0x0107, + 0x0105); + regmap_write(syscon_regmap, VERSATILE_SYS_LOCK_OFFSET, + 0); + break; case REALVIEW_REBOOT_EB: - regmap_write(syscon_regmap, REALVIEW_SYS_LOCK_OFFSET, + regmap_write(syscon_regmap, VERSATILE_SYS_LOCK_OFFSET, VERSATILE_LOCK_VAL); regmap_write(syscon_regmap, - REALVIEW_SYS_RESETCTL_OFFSET, 0x0008); + VERSATILE_SYS_RESETCTL_OFFSET, 0x0008); break; case REALVIEW_REBOOT_PB1176: - regmap_write(syscon_regmap, REALVIEW_SYS_LOCK_OFFSET, + regmap_write(syscon_regmap, VERSATILE_SYS_LOCK_OFFSET, VERSATILE_LOCK_VAL); regmap_write(syscon_regmap, - REALVIEW_SYS_RESETCTL_OFFSET, 0x0100); + VERSATILE_SYS_RESETCTL_OFFSET, 0x0100); break; case REALVIEW_REBOOT_PB11MP: case REALVIEW_REBOOT_PBA8: - regmap_write(syscon_regmap, REALVIEW_SYS_LOCK_OFFSET, + regmap_write(syscon_regmap, VERSATILE_SYS_LOCK_OFFSET, VERSATILE_LOCK_VAL); - regmap_write(syscon_regmap, REALVIEW_SYS_RESETCTL_OFFSET, + regmap_write(syscon_regmap, VERSATILE_SYS_RESETCTL_OFFSET, 0x0000); - regmap_write(syscon_regmap, REALVIEW_SYS_RESETCTL_OFFSET, + regmap_write(syscon_regmap, VERSATILE_SYS_RESETCTL_OFFSET, 0x0004); break; case REALVIEW_REBOOT_PBX: - regmap_write(syscon_regmap, REALVIEW_SYS_LOCK_OFFSET, + regmap_write(syscon_regmap, VERSATILE_SYS_LOCK_OFFSET, VERSATILE_LOCK_VAL); - regmap_write(syscon_regmap, REALVIEW_SYS_RESETCTL_OFFSET, + regmap_write(syscon_regmap, VERSATILE_SYS_RESETCTL_OFFSET, 0x00f0); - regmap_write(syscon_regmap, REALVIEW_SYS_RESETCTL_OFFSET, + regmap_write(syscon_regmap, VERSATILE_SYS_RESETCTL_OFFSET, 0x00f4); break; } |