| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * OMAP3xxx clockdomains |
| * |
| * Copyright (C) 2008-2011 Texas Instruments, Inc. |
| * Copyright (C) 2008-2010 Nokia Corporation |
| * |
| * Paul Walmsley, Jouni Högander |
| * |
| * This file contains clockdomains and clockdomain wakeup/sleep |
| * dependencies for the OMAP3xxx chips. Some notes: |
| * |
| * A useful validation rule for struct clockdomain: Any clockdomain |
| * referenced by a wkdep_srcs or sleepdep_srcs array must have a |
| * dep_bit assigned. So wkdep_srcs/sleepdep_srcs are really just |
| * software-controllable dependencies. Non-software-controllable |
| * dependencies do exist, but they are not encoded below (yet). |
| * |
| * The overly-specific dep_bit names are due to a bit name collision |
| * with CM_FCLKEN_{DSP,IVA2}. The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift |
| * value are the same for all powerdomains: 2 |
| * |
| * XXX should dep_bit be a mask, so we can test to see if it is 0 as a |
| * sanity check? |
| * XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE |
| */ |
| |
| /* |
| * To-Do List |
| * -> Port the Sleep/Wakeup dependencies for the domains |
| * from the Power domain framework |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/io.h> |
| |
| #include "soc.h" |
| #include "clockdomain.h" |
| #include "prm2xxx_3xxx.h" |
| #include "cm2xxx_3xxx.h" |
| #include "cm-regbits-34xx.h" |
| #include "prm-regbits-34xx.h" |
| |
| /* |
| * Clockdomain dependencies for wkdeps/sleepdeps |
| * |
| * XXX Hardware dependencies (e.g., dependencies that cannot be |
| * changed in software) are not included here yet, but should be. |
| */ |
| |
| /* OMAP3-specific possible dependencies */ |
| |
| /* |
| * 3430ES1 PM_WKDEP_GFX: adds IVA2, removes CORE |
| * 3430ES2 PM_WKDEP_SGX: adds IVA2, removes CORE |
| */ |
| static struct clkdm_dep gfx_sgx_3xxx_wkdeps[] = { |
| { .clkdm_name = "iva2_clkdm" }, |
| { .clkdm_name = "mpu_clkdm" }, |
| { .clkdm_name = "wkup_clkdm" }, |
| { NULL }, |
| }; |
| |
| static struct clkdm_dep gfx_sgx_am35x_wkdeps[] = { |
| { .clkdm_name = "mpu_clkdm" }, |
| { .clkdm_name = "wkup_clkdm" }, |
| { NULL }, |
| }; |
| |
| /* 3430: PM_WKDEP_PER: CORE, IVA2, MPU, WKUP */ |
| static struct clkdm_dep per_wkdeps[] = { |
| { .clkdm_name = "core_l3_clkdm" }, |
| { .clkdm_name = "core_l4_clkdm" }, |
| { .clkdm_name = "iva2_clkdm" }, |
| { .clkdm_name = "mpu_clkdm" }, |
| { .clkdm_name = "wkup_clkdm" }, |
| { NULL }, |
| }; |
| |
| static struct clkdm_dep per_am35x_wkdeps[] = { |
| { .clkdm_name = "core_l3_clkdm" }, |
| { .clkdm_name = "core_l4_clkdm" }, |
| { .clkdm_name = "mpu_clkdm" }, |
| { .clkdm_name = "wkup_clkdm" }, |
| { NULL }, |
| }; |
| |
| /* 3430ES2: PM_WKDEP_USBHOST: CORE, IVA2, MPU, WKUP */ |
| static struct clkdm_dep usbhost_wkdeps[] = { |
| { .clkdm_name = "core_l3_clkdm" }, |
| { .clkdm_name = "core_l4_clkdm" }, |
| { .clkdm_name = "iva2_clkdm" }, |
| { .clkdm_name = "mpu_clkdm" }, |
| { .clkdm_name = "wkup_clkdm" }, |
| { NULL }, |
| }; |
| |
| static struct clkdm_dep usbhost_am35x_wkdeps[] = { |
| { .clkdm_name = "core_l3_clkdm" }, |
| { .clkdm_name = "core_l4_clkdm" }, |
| { .clkdm_name = "mpu_clkdm" }, |
| { .clkdm_name = "wkup_clkdm" }, |
| { NULL }, |
| }; |
| |
| /* 3430 PM_WKDEP_MPU: CORE, IVA2, DSS, PER */ |
| static struct clkdm_dep mpu_3xxx_wkdeps[] = { |
| { .clkdm_name = "core_l3_clkdm" }, |
| { .clkdm_name = "core_l4_clkdm" }, |
| { .clkdm_name = "iva2_clkdm" }, |
| { .clkdm_name = "dss_clkdm" }, |
| { .clkdm_name = "per_clkdm" }, |
| { NULL }, |
| }; |
| |
| static struct clkdm_dep mpu_am35x_wkdeps[] = { |
| { .clkdm_name = "core_l3_clkdm" }, |
| { .clkdm_name = "core_l4_clkdm" }, |
| { .clkdm_name = "dss_clkdm" }, |
| { .clkdm_name = "per_clkdm" }, |
| { NULL }, |
| }; |
| |
| /* 3430 PM_WKDEP_IVA2: CORE, MPU, WKUP, DSS, PER */ |
| static struct clkdm_dep iva2_wkdeps[] = { |
| { .clkdm_name = "core_l3_clkdm" }, |
| { .clkdm_name = "core_l4_clkdm" }, |
| { .clkdm_name = "mpu_clkdm" }, |
| { .clkdm_name = "wkup_clkdm" }, |
| { .clkdm_name = "dss_clkdm" }, |
| { .clkdm_name = "per_clkdm" }, |
| { NULL }, |
| }; |
| |
| /* 3430 PM_WKDEP_CAM: IVA2, MPU, WKUP */ |
| static struct clkdm_dep cam_wkdeps[] = { |
| { .clkdm_name = "iva2_clkdm" }, |
| { .clkdm_name = "mpu_clkdm" }, |
| { .clkdm_name = "wkup_clkdm" }, |
| { NULL }, |
| }; |
| |
| /* 3430 PM_WKDEP_DSS: IVA2, MPU, WKUP */ |
| static struct clkdm_dep dss_wkdeps[] = { |
| { .clkdm_name = "iva2_clkdm" }, |
| { .clkdm_name = "mpu_clkdm" }, |
| { .clkdm_name = "wkup_clkdm" }, |
| { NULL }, |
| }; |
| |
| static struct clkdm_dep dss_am35x_wkdeps[] = { |
| { .clkdm_name = "mpu_clkdm" }, |
| { .clkdm_name = "wkup_clkdm" }, |
| { NULL }, |
| }; |
| |
| /* 3430: PM_WKDEP_NEON: MPU */ |
| static struct clkdm_dep neon_wkdeps[] = { |
| { .clkdm_name = "mpu_clkdm" }, |
| { NULL }, |
| }; |
| |
| /* Sleep dependency source arrays for OMAP3-specific clkdms */ |
| |
| /* 3430: CM_SLEEPDEP_DSS: MPU, IVA */ |
| static struct clkdm_dep dss_sleepdeps[] = { |
| { .clkdm_name = "mpu_clkdm" }, |
| { .clkdm_name = "iva2_clkdm" }, |
| { NULL }, |
| }; |
| |
| static struct clkdm_dep dss_am35x_sleepdeps[] = { |
| { .clkdm_name = "mpu_clkdm" }, |
| { NULL }, |
| }; |
| |
| /* 3430: CM_SLEEPDEP_PER: MPU, IVA */ |
| static struct clkdm_dep per_sleepdeps[] = { |
| { .clkdm_name = "mpu_clkdm" }, |
| { .clkdm_name = "iva2_clkdm" }, |
| { NULL }, |
| }; |
| |
| static struct clkdm_dep per_am35x_sleepdeps[] = { |
| { .clkdm_name = "mpu_clkdm" }, |
| { NULL }, |
| }; |
| |
| /* 3430ES2: CM_SLEEPDEP_USBHOST: MPU, IVA */ |
| static struct clkdm_dep usbhost_sleepdeps[] = { |
| { .clkdm_name = "mpu_clkdm" }, |
| { .clkdm_name = "iva2_clkdm" }, |
| { NULL }, |
| }; |
| |
| static struct clkdm_dep usbhost_am35x_sleepdeps[] = { |
| { .clkdm_name = "mpu_clkdm" }, |
| { NULL }, |
| }; |
| |
| /* 3430: CM_SLEEPDEP_CAM: MPU */ |
| static struct clkdm_dep cam_sleepdeps[] = { |
| { .clkdm_name = "mpu_clkdm" }, |
| { NULL }, |
| }; |
| |
| /* |
| * 3430ES1: CM_SLEEPDEP_GFX: MPU |
| * 3430ES2: CM_SLEEPDEP_SGX: MPU |
| * These can share data since they will never be present simultaneously |
| * on the same device. |
| */ |
| static struct clkdm_dep gfx_sgx_sleepdeps[] = { |
| { .clkdm_name = "mpu_clkdm" }, |
| { NULL }, |
| }; |
| |
| /* |
| * OMAP3 clockdomains |
| */ |
| |
| static struct clockdomain mpu_3xxx_clkdm = { |
| .name = "mpu_clkdm", |
| .pwrdm = { .name = "mpu_pwrdm" }, |
| .flags = CLKDM_CAN_HWSUP | CLKDM_CAN_FORCE_WAKEUP, |
| .dep_bit = OMAP3430_EN_MPU_SHIFT, |
| .wkdep_srcs = mpu_3xxx_wkdeps, |
| .clktrctrl_mask = OMAP3430_CLKTRCTRL_MPU_MASK, |
| }; |
| |
| static struct clockdomain mpu_am35x_clkdm = { |
| .name = "mpu_clkdm", |
| .pwrdm = { .name = "mpu_pwrdm" }, |
| .flags = CLKDM_CAN_HWSUP | CLKDM_CAN_FORCE_WAKEUP, |
| .dep_bit = OMAP3430_EN_MPU_SHIFT, |
| .wkdep_srcs = mpu_am35x_wkdeps, |
| .clktrctrl_mask = OMAP3430_CLKTRCTRL_MPU_MASK, |
| }; |
| |
| static struct clockdomain neon_clkdm = { |
| .name = "neon_clkdm", |
| .pwrdm = { .name = "neon_pwrdm" }, |
| .flags = CLKDM_CAN_HWSUP_SWSUP, |
| .wkdep_srcs = neon_wkdeps, |
| .clktrctrl_mask = OMAP3430_CLKTRCTRL_NEON_MASK, |
| }; |
| |
| static struct clockdomain iva2_clkdm = { |
| .name = "iva2_clkdm", |
| .pwrdm = { .name = "iva2_pwrdm" }, |
| .flags = CLKDM_CAN_SWSUP, |
| .dep_bit = OMAP3430_PM_WKDEP_MPU_EN_IVA2_SHIFT, |
| .wkdep_srcs = iva2_wkdeps, |
| .clktrctrl_mask = OMAP3430_CLKTRCTRL_IVA2_MASK, |
| }; |
| |
| static struct clockdomain gfx_3430es1_clkdm = { |
| .name = "gfx_clkdm", |
| .pwrdm = { .name = "gfx_pwrdm" }, |
| .flags = CLKDM_CAN_HWSUP_SWSUP, |
| .wkdep_srcs = gfx_sgx_3xxx_wkdeps, |
| .sleepdep_srcs = gfx_sgx_sleepdeps, |
| .clktrctrl_mask = OMAP3430ES1_CLKTRCTRL_GFX_MASK, |
| }; |
| |
| static struct clockdomain sgx_clkdm = { |
| .name = "sgx_clkdm", |
| .pwrdm = { .name = "sgx_pwrdm" }, |
| .flags = CLKDM_CAN_HWSUP_SWSUP, |
| .wkdep_srcs = gfx_sgx_3xxx_wkdeps, |
| .sleepdep_srcs = gfx_sgx_sleepdeps, |
| .clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_SGX_MASK, |
| }; |
| |
| static struct clockdomain sgx_am35x_clkdm = { |
| .name = "sgx_clkdm", |
| .pwrdm = { .name = "sgx_pwrdm" }, |
| .flags = CLKDM_CAN_HWSUP_SWSUP, |
| .wkdep_srcs = gfx_sgx_am35x_wkdeps, |
| .sleepdep_srcs = gfx_sgx_sleepdeps, |
| .clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_SGX_MASK, |
| }; |
| |
| /* |
| * The die-to-die clockdomain was documented in the 34xx ES1 TRM, but |
| * then that information was removed from the 34xx ES2+ TRM. It is |
| * unclear whether the core is still there, but the clockdomain logic |
| * is there, and must be programmed to an appropriate state if the |
| * CORE clockdomain is to become inactive. |
| */ |
| static struct clockdomain d2d_clkdm = { |
| .name = "d2d_clkdm", |
| .pwrdm = { .name = "core_pwrdm" }, |
| .flags = CLKDM_CAN_HWSUP_SWSUP, |
| .clktrctrl_mask = OMAP3430ES1_CLKTRCTRL_D2D_MASK, |
| }; |
| |
| /* |
| * XXX add usecounting for clkdm dependencies, otherwise the presence |
| * of a single dep bit for core_l3_3xxx_clkdm and core_l4_3xxx_clkdm |
| * could cause trouble |
| */ |
| static struct clockdomain core_l3_3xxx_clkdm = { |
| .name = "core_l3_clkdm", |
| .pwrdm = { .name = "core_pwrdm" }, |
| .flags = CLKDM_CAN_HWSUP, |
| .dep_bit = OMAP3430_EN_CORE_SHIFT, |
| .clktrctrl_mask = OMAP3430_CLKTRCTRL_L3_MASK, |
| }; |
| |
| /* |
| * XXX add usecounting for clkdm dependencies, otherwise the presence |
| * of a single dep bit for core_l3_3xxx_clkdm and core_l4_3xxx_clkdm |
| * could cause trouble |
| */ |
| static struct clockdomain core_l4_3xxx_clkdm = { |
| .name = "core_l4_clkdm", |
| .pwrdm = { .name = "core_pwrdm" }, |
| .flags = CLKDM_CAN_HWSUP, |
| .dep_bit = OMAP3430_EN_CORE_SHIFT, |
| .clktrctrl_mask = OMAP3430_CLKTRCTRL_L4_MASK, |
| }; |
| |
| /* Another case of bit name collisions between several registers: EN_DSS */ |
| static struct clockdomain dss_3xxx_clkdm = { |
| .name = "dss_clkdm", |
| .pwrdm = { .name = "dss_pwrdm" }, |
| .flags = CLKDM_CAN_HWSUP_SWSUP, |
| .dep_bit = OMAP3430_PM_WKDEP_MPU_EN_DSS_SHIFT, |
| .wkdep_srcs = dss_wkdeps, |
| .sleepdep_srcs = dss_sleepdeps, |
| .clktrctrl_mask = OMAP3430_CLKTRCTRL_DSS_MASK, |
| }; |
| |
| static struct clockdomain dss_am35x_clkdm = { |
| .name = "dss_clkdm", |
| .pwrdm = { .name = "dss_pwrdm" }, |
| .flags = CLKDM_CAN_HWSUP_SWSUP, |
| .dep_bit = OMAP3430_PM_WKDEP_MPU_EN_DSS_SHIFT, |
| .wkdep_srcs = dss_am35x_wkdeps, |
| .sleepdep_srcs = dss_am35x_sleepdeps, |
| .clktrctrl_mask = OMAP3430_CLKTRCTRL_DSS_MASK, |
| }; |
| |
| static struct clockdomain cam_clkdm = { |
| .name = "cam_clkdm", |
| .pwrdm = { .name = "cam_pwrdm" }, |
| .flags = CLKDM_CAN_HWSUP_SWSUP, |
| .wkdep_srcs = cam_wkdeps, |
| .sleepdep_srcs = cam_sleepdeps, |
| .clktrctrl_mask = OMAP3430_CLKTRCTRL_CAM_MASK, |
| }; |
| |
| static struct clockdomain usbhost_clkdm = { |
| .name = "usbhost_clkdm", |
| .pwrdm = { .name = "usbhost_pwrdm" }, |
| .flags = CLKDM_CAN_HWSUP_SWSUP, |
| .wkdep_srcs = usbhost_wkdeps, |
| .sleepdep_srcs = usbhost_sleepdeps, |
| .clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_USBHOST_MASK, |
| }; |
| |
| static struct clockdomain usbhost_am35x_clkdm = { |
| .name = "usbhost_clkdm", |
| .pwrdm = { .name = "core_pwrdm" }, |
| .flags = CLKDM_CAN_HWSUP_SWSUP, |
| .wkdep_srcs = usbhost_am35x_wkdeps, |
| .sleepdep_srcs = usbhost_am35x_sleepdeps, |
| .clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_USBHOST_MASK, |
| }; |
| |
| static struct clockdomain per_clkdm = { |
| .name = "per_clkdm", |
| .pwrdm = { .name = "per_pwrdm" }, |
| .flags = CLKDM_CAN_HWSUP_SWSUP, |
| .dep_bit = OMAP3430_EN_PER_SHIFT, |
| .wkdep_srcs = per_wkdeps, |
| .sleepdep_srcs = per_sleepdeps, |
| .clktrctrl_mask = OMAP3430_CLKTRCTRL_PER_MASK, |
| }; |
| |
| static struct clockdomain per_am35x_clkdm = { |
| .name = "per_clkdm", |
| .pwrdm = { .name = "per_pwrdm" }, |
| .flags = CLKDM_CAN_HWSUP_SWSUP, |
| .dep_bit = OMAP3430_EN_PER_SHIFT, |
| .wkdep_srcs = per_am35x_wkdeps, |
| .sleepdep_srcs = per_am35x_sleepdeps, |
| .clktrctrl_mask = OMAP3430_CLKTRCTRL_PER_MASK, |
| }; |
| |
| static struct clockdomain emu_clkdm = { |
| .name = "emu_clkdm", |
| .pwrdm = { .name = "emu_pwrdm" }, |
| .flags = (CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_SWSUP | |
| CLKDM_MISSING_IDLE_REPORTING), |
| .clktrctrl_mask = OMAP3430_CLKTRCTRL_EMU_MASK, |
| }; |
| |
| static struct clockdomain dpll1_clkdm = { |
| .name = "dpll1_clkdm", |
| .pwrdm = { .name = "dpll1_pwrdm" }, |
| }; |
| |
| static struct clockdomain dpll2_clkdm = { |
| .name = "dpll2_clkdm", |
| .pwrdm = { .name = "dpll2_pwrdm" }, |
| }; |
| |
| static struct clockdomain dpll3_clkdm = { |
| .name = "dpll3_clkdm", |
| .pwrdm = { .name = "dpll3_pwrdm" }, |
| }; |
| |
| static struct clockdomain dpll4_clkdm = { |
| .name = "dpll4_clkdm", |
| .pwrdm = { .name = "dpll4_pwrdm" }, |
| }; |
| |
| static struct clockdomain dpll5_clkdm = { |
| .name = "dpll5_clkdm", |
| .pwrdm = { .name = "dpll5_pwrdm" }, |
| }; |
| |
| /* |
| * Clockdomain hwsup dependencies |
| */ |
| |
| static struct clkdm_autodep clkdm_autodeps[] = { |
| { |
| .clkdm = { .name = "mpu_clkdm" }, |
| }, |
| { |
| .clkdm = { .name = "iva2_clkdm" }, |
| }, |
| { |
| .clkdm = { .name = NULL }, |
| } |
| }; |
| |
| static struct clkdm_autodep clkdm_am35x_autodeps[] = { |
| { |
| .clkdm = { .name = "mpu_clkdm" }, |
| }, |
| { |
| .clkdm = { .name = NULL }, |
| } |
| }; |
| |
| /* |
| * |
| */ |
| |
| static struct clockdomain *clockdomains_common[] __initdata = { |
| &wkup_common_clkdm, |
| &neon_clkdm, |
| &core_l3_3xxx_clkdm, |
| &core_l4_3xxx_clkdm, |
| &emu_clkdm, |
| &dpll1_clkdm, |
| &dpll3_clkdm, |
| &dpll4_clkdm, |
| NULL |
| }; |
| |
| static struct clockdomain *clockdomains_omap3430[] __initdata = { |
| &mpu_3xxx_clkdm, |
| &iva2_clkdm, |
| &d2d_clkdm, |
| &dss_3xxx_clkdm, |
| &cam_clkdm, |
| &per_clkdm, |
| &dpll2_clkdm, |
| NULL |
| }; |
| |
| static struct clockdomain *clockdomains_omap3430es1[] __initdata = { |
| &gfx_3430es1_clkdm, |
| NULL, |
| }; |
| |
| static struct clockdomain *clockdomains_omap3430es2plus[] __initdata = { |
| &sgx_clkdm, |
| &dpll5_clkdm, |
| &usbhost_clkdm, |
| NULL, |
| }; |
| |
| static struct clockdomain *clockdomains_am35x[] __initdata = { |
| &mpu_am35x_clkdm, |
| &sgx_am35x_clkdm, |
| &dss_am35x_clkdm, |
| &per_am35x_clkdm, |
| &usbhost_am35x_clkdm, |
| &dpll5_clkdm, |
| NULL |
| }; |
| |
| void __init omap3xxx_clockdomains_init(void) |
| { |
| struct clockdomain **sc; |
| unsigned int rev; |
| |
| if (!cpu_is_omap34xx()) |
| return; |
| |
| clkdm_register_platform_funcs(&omap3_clkdm_operations); |
| clkdm_register_clkdms(clockdomains_common); |
| |
| rev = omap_rev(); |
| |
| if (rev == AM35XX_REV_ES1_0 || rev == AM35XX_REV_ES1_1) { |
| clkdm_register_clkdms(clockdomains_am35x); |
| clkdm_register_autodeps(clkdm_am35x_autodeps); |
| } else { |
| clkdm_register_clkdms(clockdomains_omap3430); |
| |
| sc = (rev == OMAP3430_REV_ES1_0) ? |
| clockdomains_omap3430es1 : clockdomains_omap3430es2plus; |
| |
| clkdm_register_clkdms(sc); |
| clkdm_register_autodeps(clkdm_autodeps); |
| } |
| |
| clkdm_complete_init(); |
| } |