int __init omap2_pm_init(void) { u32 l; printk(KERN_INFO "Power Management for OMAP2 initializing\n"); l = omap2_prm_read_mod_reg(OCP_MOD, OMAP2_PRCM_REVISION_OFFSET); printk(KERN_INFO "PRCM revision %d.%d\n", (l >> 4) & 0x0f, l & 0x0f); /* Look up important powerdomains */ mpu_pwrdm = pwrdm_lookup("mpu_pwrdm"); if (!mpu_pwrdm) pr_err("PM: mpu_pwrdm not found\n"); core_pwrdm = pwrdm_lookup("core_pwrdm"); if (!core_pwrdm) pr_err("PM: core_pwrdm not found\n"); /* Look up important clockdomains */ mpu_clkdm = clkdm_lookup("mpu_clkdm"); if (!mpu_clkdm) pr_err("PM: mpu_clkdm not found\n"); wkup_clkdm = clkdm_lookup("wkup_clkdm"); if (!wkup_clkdm) pr_err("PM: wkup_clkdm not found\n"); dsp_clkdm = clkdm_lookup("dsp_clkdm"); if (!dsp_clkdm) pr_err("PM: dsp_clkdm not found\n"); gfx_clkdm = clkdm_lookup("gfx_clkdm"); if (!gfx_clkdm) pr_err("PM: gfx_clkdm not found\n"); osc_ck = clk_get(NULL, "osc_ck"); if (IS_ERR(osc_ck)) { printk(KERN_ERR "could not get osc_ck\n"); return -ENODEV; } if (cpu_is_omap242x()) { emul_ck = clk_get(NULL, "emul_ck"); if (IS_ERR(emul_ck)) { printk(KERN_ERR "could not get emul_ck\n"); clk_put(osc_ck); return -ENODEV; } } prcm_setup_regs(); /* * We copy the assembler sleep/wakeup routines to SRAM. * These routines need to be in SRAM as that's the only * memory the MPU can see when it wakes up. */ omap2_sram_idle = omap_sram_push(omap24xx_idle_loop_suspend, omap24xx_idle_loop_suspend_sz); omap2_sram_suspend = omap_sram_push(omap24xx_cpu_suspend, omap24xx_cpu_suspend_sz); arm_pm_idle = omap2_pm_idle; return 0; }
static int __init omap2_pm_init(void) { u32 l; if (!cpu_is_omap24xx()) return -ENODEV; printk(KERN_INFO "Power Management for OMAP2 initializing\n"); l = omap2_prm_read_mod_reg(OCP_MOD, OMAP2_PRCM_REVISION_OFFSET); printk(KERN_INFO "PRCM revision %d.%d\n", (l >> 4) & 0x0f, l & 0x0f); /* Look up important powerdomains */ mpu_pwrdm = pwrdm_lookup("mpu_pwrdm"); if (!mpu_pwrdm) pr_err("PM: mpu_pwrdm not found\n"); core_pwrdm = pwrdm_lookup("core_pwrdm"); if (!core_pwrdm) pr_err("PM: core_pwrdm not found\n"); /* Look up important clockdomains */ mpu_clkdm = clkdm_lookup("mpu_clkdm"); if (!mpu_clkdm) pr_err("PM: mpu_clkdm not found\n"); wkup_clkdm = clkdm_lookup("wkup_clkdm"); if (!wkup_clkdm) pr_err("PM: wkup_clkdm not found\n"); dsp_clkdm = clkdm_lookup("dsp_clkdm"); if (!dsp_clkdm) pr_err("PM: dsp_clkdm not found\n"); gfx_clkdm = clkdm_lookup("gfx_clkdm"); if (!gfx_clkdm) pr_err("PM: gfx_clkdm not found\n"); osc_ck = clk_get(NULL, "osc_ck"); if (IS_ERR(osc_ck)) { printk(KERN_ERR "could not get osc_ck\n"); return -ENODEV; } if (cpu_is_omap242x()) { emul_ck = clk_get(NULL, "emul_ck"); if (IS_ERR(emul_ck)) { printk(KERN_ERR "could not get emul_ck\n"); clk_put(osc_ck); return -ENODEV; } } prcm_setup_regs(); /* Hack to prevent MPU retention when STI console is enabled. */ { const struct omap_sti_console_config *sti; sti = omap_get_config(OMAP_TAG_STI_CONSOLE, struct omap_sti_console_config); if (sti != NULL && sti->enable) sti_console_enabled = 1; } /* * We copy the assembler sleep/wakeup routines to SRAM. * These routines need to be in SRAM as that's the only * memory the MPU can see when it wakes up. */ if (cpu_is_omap24xx()) { omap2_sram_idle = omap_sram_push(omap24xx_idle_loop_suspend, omap24xx_idle_loop_suspend_sz); omap2_sram_suspend = omap_sram_push(omap24xx_cpu_suspend, omap24xx_cpu_suspend_sz); } suspend_set_ops(&omap_pm_ops); pm_idle = omap2_pm_idle; return 0; }
static int __init omap2_pm_init(void) { u32 l; if (!cpu_is_omap24xx()) return -ENODEV; printk(KERN_INFO "Power Management for OMAP2 initializing\n"); l = omap2_prm_read_mod_reg(OCP_MOD, OMAP2_PRCM_REVISION_OFFSET); printk(KERN_INFO "PRCM revision %d.%d\n", (l >> 4) & 0x0f, l & 0x0f); mpu_pwrdm = pwrdm_lookup("mpu_pwrdm"); if (!mpu_pwrdm) pr_err("PM: mpu_pwrdm not found\n"); core_pwrdm = pwrdm_lookup("core_pwrdm"); if (!core_pwrdm) pr_err("PM: core_pwrdm not found\n"); mpu_clkdm = clkdm_lookup("mpu_clkdm"); if (!mpu_clkdm) pr_err("PM: mpu_clkdm not found\n"); wkup_clkdm = clkdm_lookup("wkup_clkdm"); if (!wkup_clkdm) pr_err("PM: wkup_clkdm not found\n"); dsp_clkdm = clkdm_lookup("dsp_clkdm"); if (!dsp_clkdm) pr_err("PM: dsp_clkdm not found\n"); gfx_clkdm = clkdm_lookup("gfx_clkdm"); if (!gfx_clkdm) pr_err("PM: gfx_clkdm not found\n"); osc_ck = clk_get(NULL, "osc_ck"); if (IS_ERR(osc_ck)) { printk(KERN_ERR "could not get osc_ck\n"); return -ENODEV; } if (cpu_is_omap242x()) { emul_ck = clk_get(NULL, "emul_ck"); if (IS_ERR(emul_ck)) { printk(KERN_ERR "could not get emul_ck\n"); clk_put(osc_ck); return -ENODEV; } } prcm_setup_regs(); { const struct omap_sti_console_config *sti; sti = omap_get_config(OMAP_TAG_STI_CONSOLE, struct omap_sti_console_config); if (sti != NULL && sti->enable) sti_console_enabled = 1; } if (cpu_is_omap24xx()) { omap2_sram_idle = omap_sram_push(omap24xx_idle_loop_suspend, omap24xx_idle_loop_suspend_sz); omap2_sram_suspend = omap_sram_push(omap24xx_cpu_suspend, omap24xx_cpu_suspend_sz); } arm_pm_idle = omap2_pm_idle; return 0; }