diff options
Diffstat (limited to 'arch/arm/mach-omap2/cminst44xx.c')
| -rw-r--r-- | arch/arm/mach-omap2/cminst44xx.c | 61 |
1 files changed, 44 insertions, 17 deletions
diff --git a/arch/arm/mach-omap2/cminst44xx.c b/arch/arm/mach-omap2/cminst44xx.c index f0290f5566f..12aca56942c 100644 --- a/arch/arm/mach-omap2/cminst44xx.c +++ b/arch/arm/mach-omap2/cminst44xx.c @@ -21,8 +21,6 @@ #include <linux/err.h> #include <linux/io.h> -#include "iomap.h" -#include "common.h" #include "clockdomain.h" #include "cm.h" #include "cm1_44xx.h" @@ -30,12 +28,18 @@ #include "cm44xx.h" #include "cminst44xx.h" #include "cm-regbits-34xx.h" -#include "cm-regbits-44xx.h" #include "prcm44xx.h" #include "prm44xx.h" #include "prcm_mpu44xx.h" #include "prcm-common.h" +#define OMAP4430_IDLEST_SHIFT 16 +#define OMAP4430_IDLEST_MASK (0x3 << 16) +#define OMAP4430_CLKTRCTRL_SHIFT 0 +#define OMAP4430_CLKTRCTRL_MASK (0x3 << 0) +#define OMAP4430_MODULEMODE_SHIFT 0 +#define OMAP4430_MODULEMODE_MASK (0x3 << 0) + /* * CLKCTRL_IDLEST_*: possible values for the CM_*_CLKCTRL.IDLEST bitfield: * @@ -111,25 +115,25 @@ static bool _is_module_ready(u8 part, u16 inst, s16 cdoffs, u16 clkctrl_offs) /* Public functions */ /* Read a register in a CM instance */ -u32 omap4_cminst_read_inst_reg(u8 part, s16 inst, u16 idx) +u32 omap4_cminst_read_inst_reg(u8 part, u16 inst, u16 idx) { BUG_ON(part >= OMAP4_MAX_PRCM_PARTITIONS || part == OMAP4430_INVALID_PRCM_PARTITION || !_cm_bases[part]); - return __raw_readl(_cm_bases[part] + inst + idx); + return readl_relaxed(_cm_bases[part] + inst + idx); } /* Write into a register in a CM instance */ -void omap4_cminst_write_inst_reg(u32 val, u8 part, s16 inst, u16 idx) +void omap4_cminst_write_inst_reg(u32 val, u8 part, u16 inst, u16 idx) { BUG_ON(part >= OMAP4_MAX_PRCM_PARTITIONS || part == OMAP4430_INVALID_PRCM_PARTITION || !_cm_bases[part]); - __raw_writel(val, _cm_bases[part] + inst + idx); + writel_relaxed(val, _cm_bases[part] + inst + idx); } /* Read-modify-write a register in CM1. Caller must lock */ -u32 omap4_cminst_rmw_inst_reg_bits(u32 mask, u32 bits, u8 part, s16 inst, +u32 omap4_cminst_rmw_inst_reg_bits(u32 mask, u32 bits, u8 part, u16 inst, s16 idx) { u32 v; @@ -142,12 +146,12 @@ u32 omap4_cminst_rmw_inst_reg_bits(u32 mask, u32 bits, u8 part, s16 inst, return v; } -u32 omap4_cminst_set_inst_reg_bits(u32 bits, u8 part, s16 inst, s16 idx) +u32 omap4_cminst_set_inst_reg_bits(u32 bits, u8 part, u16 inst, s16 idx) { return omap4_cminst_rmw_inst_reg_bits(bits, bits, part, inst, idx); } -u32 omap4_cminst_clear_inst_reg_bits(u32 bits, u8 part, s16 inst, s16 idx) +u32 omap4_cminst_clear_inst_reg_bits(u32 bits, u8 part, u16 inst, s16 idx) { return omap4_cminst_rmw_inst_reg_bits(bits, 0x0, part, inst, idx); } @@ -177,7 +181,7 @@ u32 omap4_cminst_read_inst_reg_bits(u8 part, u16 inst, s16 idx, u32 mask) * @c must be the unshifted value for CLKTRCTRL - i.e., this function * will handle the shift itself. */ -static void _clktrctrl_write(u8 c, u8 part, s16 inst, u16 cdoffs) +static void _clktrctrl_write(u8 c, u8 part, u16 inst, u16 cdoffs) { u32 v; @@ -196,7 +200,7 @@ static void _clktrctrl_write(u8 c, u8 part, s16 inst, u16 cdoffs) * Returns true if the clockdomain referred to by (@part, @inst, @cdoffs) * is in hardware-supervised idle mode, or 0 otherwise. */ -bool omap4_cminst_is_clkdm_in_hwsup(u8 part, s16 inst, u16 cdoffs) +bool omap4_cminst_is_clkdm_in_hwsup(u8 part, u16 inst, u16 cdoffs) { u32 v; @@ -216,7 +220,7 @@ bool omap4_cminst_is_clkdm_in_hwsup(u8 part, s16 inst, u16 cdoffs) * Put a clockdomain referred to by (@part, @inst, @cdoffs) into * hardware-supervised idle mode. No return value. */ -void omap4_cminst_clkdm_enable_hwsup(u8 part, s16 inst, u16 cdoffs) +void omap4_cminst_clkdm_enable_hwsup(u8 part, u16 inst, u16 cdoffs) { _clktrctrl_write(OMAP34XX_CLKSTCTRL_ENABLE_AUTO, part, inst, cdoffs); } @@ -231,7 +235,7 @@ void omap4_cminst_clkdm_enable_hwsup(u8 part, s16 inst, u16 cdoffs) * software-supervised idle mode, i.e., controlled manually by the * Linux OMAP clockdomain code. No return value. */ -void omap4_cminst_clkdm_disable_hwsup(u8 part, s16 inst, u16 cdoffs) +void omap4_cminst_clkdm_disable_hwsup(u8 part, u16 inst, u16 cdoffs) { _clktrctrl_write(OMAP34XX_CLKSTCTRL_DISABLE_AUTO, part, inst, cdoffs); } @@ -245,7 +249,7 @@ void omap4_cminst_clkdm_disable_hwsup(u8 part, s16 inst, u16 cdoffs) * Take a clockdomain referred to by (@part, @inst, @cdoffs) out of idle, * waking it up. No return value. */ -void omap4_cminst_clkdm_force_wakeup(u8 part, s16 inst, u16 cdoffs) +void omap4_cminst_clkdm_force_wakeup(u8 part, u16 inst, u16 cdoffs) { _clktrctrl_write(OMAP34XX_CLKSTCTRL_FORCE_WAKEUP, part, inst, cdoffs); } @@ -254,6 +258,11 @@ void omap4_cminst_clkdm_force_wakeup(u8 part, s16 inst, u16 cdoffs) * */ +void omap4_cminst_clkdm_force_sleep(u8 part, u16 inst, u16 cdoffs) +{ + _clktrctrl_write(OMAP34XX_CLKSTCTRL_FORCE_SLEEP, part, inst, cdoffs); +} + /** * omap4_cminst_wait_module_ready - wait for a module to be in 'func' state * @part: PRCM partition ID that the CM_CLKCTRL register exists in @@ -404,8 +413,17 @@ static int omap4_clkdm_clear_all_wkup_sleep_deps(struct clockdomain *clkdm) static int omap4_clkdm_sleep(struct clockdomain *clkdm) { - omap4_cminst_clkdm_enable_hwsup(clkdm->prcm_partition, - clkdm->cm_inst, clkdm->clkdm_offs); + if (clkdm->flags & CLKDM_CAN_HWSUP) + omap4_cminst_clkdm_enable_hwsup(clkdm->prcm_partition, + clkdm->cm_inst, + clkdm->clkdm_offs); + else if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP) + omap4_cminst_clkdm_force_sleep(clkdm->prcm_partition, + clkdm->cm_inst, + clkdm->clkdm_offs); + else + return -EINVAL; + return 0; } @@ -483,3 +501,12 @@ struct clkdm_ops omap4_clkdm_operations = { .clkdm_clk_enable = omap4_clkdm_clk_enable, .clkdm_clk_disable = omap4_clkdm_clk_disable, }; + +struct clkdm_ops am43xx_clkdm_operations = { + .clkdm_sleep = omap4_clkdm_sleep, + .clkdm_wakeup = omap4_clkdm_wakeup, + .clkdm_allow_idle = omap4_clkdm_allow_idle, + .clkdm_deny_idle = omap4_clkdm_deny_idle, + .clkdm_clk_enable = omap4_clkdm_clk_enable, + .clkdm_clk_disable = omap4_clkdm_clk_disable, +}; |