diff options
| author |   Tero Kristo <t-kristo@ti.com> | 2014-10-27 08:39:25 -0700 |
|---|---|---|
| committer |   Tony Lindgren <tony@atomide.com> | 2014-10-27 08:39:25 -0700 |
| commit | 840b7eb8342a64ad6fc6a2140262c3fed3676bd4 (patch) | |
| tree | 9444929b8739b9ad6f5f7f05ea1591f67243a94f /arch/arm/mach-omap2/prm33xx.c | |
| parent | ARM: OMAP4+: CM: remove omap4_cm1/cm2_* functions (diff) | |
| download | linux-dev-840b7eb8342a64ad6fc6a2140262c3fed3676bd4.tar.xz linux-dev-840b7eb8342a64ad6fc6a2140262c3fed3676bd4.zip | |
ARM: AM33xx: PRM: move global warm reset implementation to driver
Moved the implementation from am33xx-restart.c to the prm33xx.c file to
isolate the PRM register accesses to be private for PRM driver.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2/prm33xx.c')
| -rw-r--r-- | arch/arm/mach-omap2/prm33xx.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/prm33xx.c b/arch/arm/mach-omap2/prm33xx.c index 3cbfb78ed5e9..03960bc9b419 100644 --- a/arch/arm/mach-omap2/prm33xx.c +++ b/arch/arm/mach-omap2/prm33xx.c @@ -23,6 +23,10 @@ #include "prm33xx.h" #include "prm-regbits-33xx.h" +#define AM33XX_PRM_RSTCTRL_OFFSET 0x0000 + +#define AM33XX_RST_GLOBAL_WARM_SW_MASK (1 << 0) + /* Read a register in a PRM instance */ u32 am33xx_prm_read_reg(s16 inst, u16 idx) { @@ -332,6 +336,23 @@ static int am33xx_check_vcvp(void) return 0; } +/** + * am33xx_prm_global_warm_sw_reset - reboot the device via warm reset + * + * Immediately reboots the device through warm reset. + */ +void am33xx_prm_global_warm_sw_reset(void) +{ + am33xx_prm_rmw_reg_bits(AM33XX_RST_GLOBAL_WARM_SW_MASK, + AM33XX_RST_GLOBAL_WARM_SW_MASK, + AM33XX_PRM_DEVICE_MOD, + AM33XX_PRM_RSTCTRL_OFFSET); + + /* OCP barrier */ + (void)am33xx_prm_read_reg(AM33XX_PRM_DEVICE_MOD, + AM33XX_PRM_RSTCTRL_OFFSET); +} + struct pwrdm_ops am33xx_pwrdm_operations = { .pwrdm_set_next_pwrst = am33xx_pwrdm_set_next_pwrst, .pwrdm_read_next_pwrst = am33xx_pwrdm_read_next_pwrst, |