diff options
Diffstat (limited to 'plat/rockchip/rk3399/drivers/pmu/pmu.c')
| -rw-r--r-- | plat/rockchip/rk3399/drivers/pmu/pmu.c | 1599 |
1 files changed, 1599 insertions, 0 deletions
diff --git a/plat/rockchip/rk3399/drivers/pmu/pmu.c b/plat/rockchip/rk3399/drivers/pmu/pmu.c new file mode 100644 index 00000000..c666c3c2 --- /dev/null +++ b/plat/rockchip/rk3399/drivers/pmu/pmu.c @@ -0,0 +1,1599 @@ +/* + * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <arch_helpers.h> +#include <assert.h> +#include <bakery_lock.h> +#include <bl31.h> +#include <debug.h> +#include <delay_timer.h> +#include <dfs.h> +#include <errno.h> +#include <gpio.h> +#include <m0_ctl.h> +#include <mmio.h> +#include <plat_params.h> +#include <plat_private.h> +#include <platform.h> +#include <platform_def.h> +#include <pmu.h> +#include <pmu_com.h> +#include <pwm.h> +#include <rk3399_def.h> +#include <secure.h> +#include <soc.h> +#include <string.h> +#include <suspend.h> + +DEFINE_BAKERY_LOCK(rockchip_pd_lock); + +static uint32_t cpu_warm_boot_addr; +static char store_sram[SRAM_BIN_LIMIT + SRAM_TEXT_LIMIT + SRAM_DATA_LIMIT]; +static uint32_t store_cru[CRU_SDIO0_CON1 / 4]; +static uint32_t store_usbphy0[7]; +static uint32_t store_usbphy1[7]; +static uint32_t store_grf_io_vsel; +static uint32_t store_grf_soc_con0; +static uint32_t store_grf_soc_con1; +static uint32_t store_grf_soc_con2; +static uint32_t store_grf_soc_con3; +static uint32_t store_grf_soc_con4; +static uint32_t store_grf_soc_con7; +static uint32_t store_grf_ddrc_con[4]; +static uint32_t store_wdt0[2]; +static uint32_t store_wdt1[2]; + +/* + * There are two ways to powering on or off on core. + * 1) Control it power domain into on or off in PMU_PWRDN_CON reg, + * it is core_pwr_pd mode + * 2) Enable the core power manage in PMU_CORE_PM_CON reg, + * then, if the core enter into wfi, it power domain will be + * powered off automatically. it is core_pwr_wfi or core_pwr_wfi_int mode + * so we need core_pm_cfg_info to distinguish which method be used now. + */ + +static uint32_t core_pm_cfg_info[PLATFORM_CORE_COUNT] +#if USE_COHERENT_MEM +__attribute__ ((section("tzfw_coherent_mem"))) +#endif +;/* coheront */ + +static void pmu_bus_idle_req(uint32_t bus, uint32_t state) +{ + uint32_t bus_id = BIT(bus); + uint32_t bus_req; + uint32_t wait_cnt = 0; + uint32_t bus_state, bus_ack; + + if (state) + bus_req = BIT(bus); + else + bus_req = 0; + + mmio_clrsetbits_32(PMU_BASE + PMU_BUS_IDLE_REQ, bus_id, bus_req); + + do { + bus_state = mmio_read_32(PMU_BASE + PMU_BUS_IDLE_ST) & bus_id; + bus_ack = mmio_read_32(PMU_BASE + PMU_BUS_IDLE_ACK) & bus_id; + wait_cnt++; + } while ((bus_state != bus_req || bus_ack != bus_req) && + (wait_cnt < MAX_WAIT_COUNT)); + + if (bus_state != bus_req || bus_ack != bus_req) { + INFO("%s:st=%x(%x)\n", __func__, + mmio_read_32(PMU_BASE + PMU_BUS_IDLE_ST), + bus_state); + INFO("%s:st=%x(%x)\n", __func__, + mmio_read_32(PMU_BASE + PMU_BUS_IDLE_ACK), + bus_ack); + } +} + +struct pmu_slpdata_s pmu_slpdata; + +static void qos_save(void) +{ + if (pmu_power_domain_st(PD_GPU) == pmu_pd_on) + RESTORE_QOS(pmu_slpdata.gpu_qos, GPU); + if (pmu_power_domain_st(PD_ISP0) == pmu_pd_on) { + RESTORE_QOS(pmu_slpdata.isp0_m0_qos, ISP0_M0); + RESTORE_QOS(pmu_slpdata.isp0_m1_qos, ISP0_M1); + } + if (pmu_power_domain_st(PD_ISP1) == pmu_pd_on) { + RESTORE_QOS(pmu_slpdata.isp1_m0_qos, ISP1_M0); + RESTORE_QOS(pmu_slpdata.isp1_m1_qos, ISP1_M1); + } + if (pmu_power_domain_st(PD_VO) == pmu_pd_on) { + RESTORE_QOS(pmu_slpdata.vop_big_r, VOP_BIG_R); + RESTORE_QOS(pmu_slpdata.vop_big_w, VOP_BIG_W); + RESTORE_QOS(pmu_slpdata.vop_little, VOP_LITTLE); + } + if (pmu_power_domain_st(PD_HDCP) == pmu_pd_on) + RESTORE_QOS(pmu_slpdata.hdcp_qos, HDCP); + if (pmu_power_domain_st(PD_GMAC) == pmu_pd_on) + RESTORE_QOS(pmu_slpdata.gmac_qos, GMAC); + if (pmu_power_domain_st(PD_CCI) == pmu_pd_on) { + RESTORE_QOS(pmu_slpdata.cci_m0_qos, CCI_M0); + RESTORE_QOS(pmu_slpdata.cci_m1_qos, CCI_M1); + } + if (pmu_power_domain_st(PD_SD) == pmu_pd_on) + RESTORE_QOS(pmu_slpdata.sdmmc_qos, SDMMC); + if (pmu_power_domain_st(PD_EMMC) == pmu_pd_on) + RESTORE_QOS(pmu_slpdata.emmc_qos, EMMC); + if (pmu_power_domain_st(PD_SDIOAUDIO) == pmu_pd_on) + RESTORE_QOS(pmu_slpdata.sdio_qos, SDIO); + if (pmu_power_domain_st(PD_GIC) == pmu_pd_on) + RESTORE_QOS(pmu_slpdata.gic_qos, GIC); + if (pmu_power_domain_st(PD_RGA) == pmu_pd_on) { + RESTORE_QOS(pmu_slpdata.rga_r_qos, RGA_R); + RESTORE_QOS(pmu_slpdata.rga_w_qos, RGA_W); + } + if (pmu_power_domain_st(PD_IEP) == pmu_pd_on) + RESTORE_QOS(pmu_slpdata.iep_qos, IEP); + if (pmu_power_domain_st(PD_USB3) == pmu_pd_on) { + RESTORE_QOS(pmu_slpdata.usb_otg0_qos, USB_OTG0); + RESTORE_QOS(pmu_slpdata.usb_otg1_qos, USB_OTG1); + } + if (pmu_power_domain_st(PD_PERIHP) == pmu_pd_on) { + RESTORE_QOS(pmu_slpdata.usb_host0_qos, USB_HOST0); + RESTORE_QOS(pmu_slpdata.usb_host1_qos, USB_HOST1); + RESTORE_QOS(pmu_slpdata.perihp_nsp_qos, PERIHP_NSP); + } + if (pmu_power_domain_st(PD_PERILP) == pmu_pd_on) { + RESTORE_QOS(pmu_slpdata.dmac0_qos, DMAC0); + RESTORE_QOS(pmu_slpdata.dmac1_qos, DMAC1); + RESTORE_QOS(pmu_slpdata.dcf_qos, DCF); + RESTORE_QOS(pmu_slpdata.crypto0_qos, CRYPTO0); + RESTORE_QOS(pmu_slpdata.crypto1_qos, CRYPTO1); + RESTORE_QOS(pmu_slpdata.perilp_nsp_qos, PERILP_NSP); + RESTORE_QOS(pmu_slpdata.perilpslv_nsp_qos, PERILPSLV_NSP); + RESTORE_QOS(pmu_slpdata.peri_cm1_qos, PERI_CM1); + } + if (pmu_power_domain_st(PD_VDU) == pmu_pd_on) + RESTORE_QOS(pmu_slpdata.video_m0_qos, VIDEO_M0); + if (pmu_power_domain_st(PD_VCODEC) == pmu_pd_on) { + RESTORE_QOS(pmu_slpdata.video_m1_r_qos, VIDEO_M1_R); + RESTORE_QOS(pmu_slpdata.video_m1_w_qos, VIDEO_M1_W); + } +} + +static void qos_restore(void) +{ + if (pmu_power_domain_st(PD_GPU) == pmu_pd_on) + SAVE_QOS(pmu_slpdata.gpu_qos, GPU); + if (pmu_power_domain_st(PD_ISP0) == pmu_pd_on) { + SAVE_QOS(pmu_slpdata.isp0_m0_qos, ISP0_M0); + SAVE_QOS(pmu_slpdata.isp0_m1_qos, ISP0_M1); + } + if (pmu_power_domain_st(PD_ISP1) == pmu_pd_on) { + SAVE_QOS(pmu_slpdata.isp1_m0_qos, ISP1_M0); + SAVE_QOS(pmu_slpdata.isp1_m1_qos, ISP1_M1); + } + if (pmu_power_domain_st(PD_VO) == pmu_pd_on) { + SAVE_QOS(pmu_slpdata.vop_big_r, VOP_BIG_R); + SAVE_QOS(pmu_slpdata.vop_big_w, VOP_BIG_W); + SAVE_QOS(pmu_slpdata.vop_little, VOP_LITTLE); + } + if (pmu_power_domain_st(PD_HDCP) == pmu_pd_on) + SAVE_QOS(pmu_slpdata.hdcp_qos, HDCP); + if (pmu_power_domain_st(PD_GMAC) == pmu_pd_on) + SAVE_QOS(pmu_slpdata.gmac_qos, GMAC); + if (pmu_power_domain_st(PD_CCI) == pmu_pd_on) { + SAVE_QOS(pmu_slpdata.cci_m0_qos, CCI_M0); + SAVE_QOS(pmu_slpdata.cci_m1_qos, CCI_M1); + } + if (pmu_power_domain_st(PD_SD) == pmu_pd_on) + SAVE_QOS(pmu_slpdata.sdmmc_qos, SDMMC); + if (pmu_power_domain_st(PD_EMMC) == pmu_pd_on) + SAVE_QOS(pmu_slpdata.emmc_qos, EMMC); + if (pmu_power_domain_st(PD_SDIOAUDIO) == pmu_pd_on) + SAVE_QOS(pmu_slpdata.sdio_qos, SDIO); + if (pmu_power_domain_st(PD_GIC) == pmu_pd_on) + SAVE_QOS(pmu_slpdata.gic_qos, GIC); + if (pmu_power_domain_st(PD_RGA) == pmu_pd_on) { + SAVE_QOS(pmu_slpdata.rga_r_qos, RGA_R); + SAVE_QOS(pmu_slpdata.rga_w_qos, RGA_W); + } + if (pmu_power_domain_st(PD_IEP) == pmu_pd_on) + SAVE_QOS(pmu_slpdata.iep_qos, IEP); + if (pmu_power_domain_st(PD_USB3) == pmu_pd_on) { + SAVE_QOS(pmu_slpdata.usb_otg0_qos, USB_OTG0); + SAVE_QOS(pmu_slpdata.usb_otg1_qos, USB_OTG1); + } + if (pmu_power_domain_st(PD_PERIHP) == pmu_pd_on) { + SAVE_QOS(pmu_slpdata.usb_host0_qos, USB_HOST0); + SAVE_QOS(pmu_slpdata.usb_host1_qos, USB_HOST1); + SAVE_QOS(pmu_slpdata.perihp_nsp_qos, PERIHP_NSP); + } + if (pmu_power_domain_st(PD_PERILP) == pmu_pd_on) { + SAVE_QOS(pmu_slpdata.dmac0_qos, DMAC0); + SAVE_QOS(pmu_slpdata.dmac1_qos, DMAC1); + SAVE_QOS(pmu_slpdata.dcf_qos, DCF); + SAVE_QOS(pmu_slpdata.crypto0_qos, CRYPTO0); + SAVE_QOS(pmu_slpdata.crypto1_qos, CRYPTO1); + SAVE_QOS(pmu_slpdata.perilp_nsp_qos, PERILP_NSP); + SAVE_QOS(pmu_slpdata.perilpslv_nsp_qos, PERILPSLV_NSP); + SAVE_QOS(pmu_slpdata.peri_cm1_qos, PERI_CM1); + } + if (pmu_power_domain_st(PD_VDU) == pmu_pd_on) + SAVE_QOS(pmu_slpdata.video_m0_qos, VIDEO_M0); + if (pmu_power_domain_st(PD_VCODEC) == pmu_pd_on) { + SAVE_QOS(pmu_slpdata.video_m1_r_qos, VIDEO_M1_R); + SAVE_QOS(pmu_slpdata.video_m1_w_qos, VIDEO_M1_W); + } +} + +static int pmu_set_power_domain(uint32_t pd_id, uint32_t pd_state) +{ + uint32_t state; + + if (pmu_power_domain_st(pd_id) == pd_state) + goto out; + + if (pd_state == pmu_pd_on) + pmu_power_domain_ctr(pd_id, pd_state); + + state = (pd_state == pmu_pd_off) ? BUS_IDLE : BUS_ACTIVE; + + switch (pd_id) { + case PD_GPU: + pmu_bus_idle_req(BUS_ID_GPU, state); + break; + case PD_VIO: + pmu_bus_idle_req(BUS_ID_VIO, state); + break; + case PD_ISP0: + pmu_bus_idle_req(BUS_ID_ISP0, state); + break; + case PD_ISP1: + pmu_bus_idle_req(BUS_ID_ISP1, state); + break; + case PD_VO: + pmu_bus_idle_req(BUS_ID_VOPB, state); + pmu_bus_idle_req(BUS_ID_VOPL, state); + break; + case PD_HDCP: + pmu_bus_idle_req(BUS_ID_HDCP, state); + break; + case PD_TCPD0: + break; + case PD_TCPD1: + break; + case PD_GMAC: + pmu_bus_idle_req(BUS_ID_GMAC, state); + break; + case PD_CCI: + pmu_bus_idle_req(BUS_ID_CCIM0, state); + pmu_bus_idle_req(BUS_ID_CCIM1, state); + break; + case PD_SD: + pmu_bus_idle_req(BUS_ID_SD, state); + break; + case PD_EMMC: + pmu_bus_idle_req(BUS_ID_EMMC, state); + break; + case PD_EDP: + pmu_bus_idle_req(BUS_ID_EDP, state); + break; + case PD_SDIOAUDIO: + pmu_bus_idle_req(BUS_ID_SDIOAUDIO, state); + break; + case PD_GIC: + pmu_bus_idle_req(BUS_ID_GIC, state); + break; + case PD_RGA: + pmu_bus_idle_req(BUS_ID_RGA, state); + break; + case PD_VCODEC: + pmu_bus_idle_req(BUS_ID_VCODEC, state); + break; + case PD_VDU: + pmu_bus_idle_req(BUS_ID_VDU, state); + break; + case PD_IEP: + pmu_bus_idle_req(BUS_ID_IEP, state); + break; + case PD_USB3: + pmu_bus_idle_req(BUS_ID_USB3, state); + break; + case PD_PERIHP: + pmu_bus_idle_req(BUS_ID_PERIHP, state); + break; + default: + break; + } + + if (pd_state == pmu_pd_off) + pmu_power_domain_ctr(pd_id, pd_state); + +out: + return 0; +} + +static uint32_t pmu_powerdomain_state; + +static void pmu_power_domains_suspend(void) +{ + clk_gate_con_save(); + clk_gate_con_disable(); + qos_save(); + pmu_powerdomain_state = mmio_read_32(PMU_BASE + PMU_PWRDN_ST); + pmu_set_power_domain(PD_GPU, pmu_pd_off); + pmu_set_power_domain(PD_TCPD0, pmu_pd_off); + pmu_set_power_domain(PD_TCPD1, pmu_pd_off); + pmu_set_power_domain(PD_VO, pmu_pd_off); + pmu_set_power_domain(PD_ISP0, pmu_pd_off); + pmu_set_power_domain(PD_ISP1, pmu_pd_off); + pmu_set_power_domain(PD_HDCP, pmu_pd_off); + pmu_set_power_domain(PD_SDIOAUDIO, pmu_pd_off); + pmu_set_power_domain(PD_GMAC, pmu_pd_off); + pmu_set_power_domain(PD_EDP, pmu_pd_off); + pmu_set_power_domain(PD_IEP, pmu_pd_off); + pmu_set_power_domain(PD_RGA, pmu_pd_off); + pmu_set_power_domain(PD_VCODEC, pmu_pd_off); + pmu_set_power_domain(PD_VDU, pmu_pd_off); + pmu_set_power_domain(PD_USB3, pmu_pd_off); + pmu_set_power_domain(PD_EMMC, pmu_pd_off); + pmu_set_power_domain(PD_VIO, pmu_pd_off); + pmu_set_power_domain(PD_SD, pmu_pd_off); + pmu_set_power_domain(PD_PERIHP, pmu_pd_off); + clk_gate_con_restore(); +} + +static void pmu_power_domains_resume(void) +{ + clk_gate_con_save(); + clk_gate_con_disable(); + if (!(pmu_powerdomain_state & BIT(PD_VDU))) + pmu_set_power_domain(PD_VDU, pmu_pd_on); + if (!(pmu_powerdomain_state & BIT(PD_VCODEC))) + pmu_set_power_domain(PD_VCODEC, pmu_pd_on); + if (!(pmu_powerdomain_state & BIT(PD_RGA))) + pmu_set_power_domain(PD_RGA, pmu_pd_on); + if (!(pmu_powerdomain_state & BIT(PD_IEP))) + pmu_set_power_domain(PD_IEP, pmu_pd_on); + if (!(pmu_powerdomain_state & BIT(PD_EDP))) + pmu_set_power_domain(PD_EDP, pmu_pd_on); + if (!(pmu_powerdomain_state & BIT(PD_GMAC))) + pmu_set_power_domain(PD_GMAC, pmu_pd_on); + if (!(pmu_powerdomain_state & BIT(PD_SDIOAUDIO))) + pmu_set_power_domain(PD_SDIOAUDIO, pmu_pd_on); + if (!(pmu_powerdomain_state & BIT(PD_HDCP))) + pmu_set_power_domain(PD_HDCP, pmu_pd_on); + if (!(pmu_powerdomain_state & BIT(PD_ISP1))) + pmu_set_power_domain(PD_ISP1, pmu_pd_on); + if (!(pmu_powerdomain_state & BIT(PD_ISP0))) + pmu_set_power_domain(PD_ISP0, pmu_pd_on); + if (!(pmu_powerdomain_state & BIT(PD_VO))) + pmu_set_power_domain(PD_VO, pmu_pd_on); + if (!(pmu_powerdomain_state & BIT(PD_TCPD1))) + pmu_set_power_domain(PD_TCPD1, pmu_pd_on); + if (!(pmu_powerdomain_state & BIT(PD_TCPD0))) + pmu_set_power_domain(PD_TCPD0, pmu_pd_on); + if (!(pmu_powerdomain_state & BIT(PD_GPU))) + pmu_set_power_domain(PD_GPU, pmu_pd_on); + if (!(pmu_powerdomain_state & BIT(PD_USB3))) + pmu_set_power_domain(PD_USB3, pmu_pd_on); + if (!(pmu_powerdomain_state & BIT(PD_EMMC))) + pmu_set_power_domain(PD_EMMC, pmu_pd_on); + if (!(pmu_powerdomain_state & BIT(PD_VIO))) + pmu_set_power_domain(PD_VIO, pmu_pd_on); + if (!(pmu_powerdomain_state & BIT(PD_SD))) + pmu_set_power_domain(PD_SD, pmu_pd_on); + if (!(pmu_powerdomain_state & BIT(PD_PERIHP))) + pmu_set_power_domain(PD_PERIHP, pmu_pd_on); + qos_restore(); + clk_gate_con_restore(); +} + +void rk3399_flush_l2_b(void) +{ + uint32_t wait_cnt = 0; + + mmio_setbits_32(PMU_BASE + PMU_SFT_CON, BIT(L2_FLUSH_REQ_CLUSTER_B)); + dsb(); + + /* + * The Big cluster flush L2 cache took ~4ms by default, give 10ms for + * the enough margin. + */ + while (!(mmio_read_32(PMU_BASE + PMU_CORE_PWR_ST) & + BIT(L2_FLUSHDONE_CLUSTER_B))) { + wait_cnt++; + udelay(10); + if (wait_cnt == 10000 / 10) + WARN("L2 cache flush on suspend took longer than 10ms\n"); + } + + mmio_clrbits_32(PMU_BASE + PMU_SFT_CON, BIT(L2_FLUSH_REQ_CLUSTER_B)); +} + +static void pmu_scu_b_pwrdn(void) +{ + uint32_t wait_cnt = 0; + + if ((mmio_read_32(PMU_BASE + PMU_PWRDN_ST) & + (BIT(PMU_A72_B0_PWRDWN_ST) | BIT(PMU_A72_B1_PWRDWN_ST))) != + (BIT(PMU_A72_B0_PWRDWN_ST) | BIT(PMU_A72_B1_PWRDWN_ST))) { + ERROR("%s: not all cpus is off\n", __func__); + return; + } + + rk3399_flush_l2_b(); + + mmio_setbits_32(PMU_BASE + PMU_SFT_CON, BIT(ACINACTM_CLUSTER_B_CFG)); + + while (!(mmio_read_32(PMU_BASE + PMU_CORE_PWR_ST) & + BIT(STANDBY_BY_WFIL2_CLUSTER_B))) { + wait_cnt++; + if (wait_cnt >= MAX_WAIT_COUNT) + ERROR("%s:wait cluster-b l2(%x)\n", __func__, + mmio_read_32(PMU_BASE + PMU_CORE_PWR_ST)); + } +} + +static void pmu_scu_b_pwrup(void) +{ + mmio_clrbits_32(PMU_BASE + PMU_SFT_CON, BIT(ACINACTM_CLUSTER_B_CFG)); +} + +static inline uint32_t get_cpus_pwr_domain_cfg_info(uint32_t cpu_id) +{ + assert(cpu_id < PLATFORM_CORE_COUNT); + return core_pm_cfg_info[cpu_id]; +} + +static inline void set_cpus_pwr_domain_cfg_info(uint32_t cpu_id, uint32_t value) +{ + assert(cpu_id < PLATFORM_CORE_COUNT); + core_pm_cfg_info[cpu_id] = value; +#if !USE_COHERENT_MEM + flush_dcache_range((uintptr_t)&core_pm_cfg_info[cpu_id], + sizeof(uint32_t)); +#endif +} + +static int cpus_power_domain_on(uint32_t cpu_id) +{ + uint32_t cfg_info; + uint32_t cpu_pd = PD_CPUL0 + cpu_id; + /* + * There are two ways to powering on or off on core. + * 1) Control it power domain into on or off in PMU_PWRDN_CON reg + * 2) Enable the core power manage in PMU_CORE_PM_CON reg, + * then, if the core enter into wfi, it power domain will be + * powered off automatically. + */ + + cfg_info = get_cpus_pwr_domain_cfg_info(cpu_id); + + if (cfg_info == core_pwr_pd) { + /* disable core_pm cfg */ + mmio_write_32(PMU_BASE + PMU_CORE_PM_CON(cpu_id), + CORES_PM_DISABLE); + /* if the cores have be on, power off it firstly */ + if (pmu_power_domain_st(cpu_pd) == pmu_pd_on) { + mmio_write_32(PMU_BASE + PMU_CORE_PM_CON(cpu_id), 0); + pmu_power_domain_ctr(cpu_pd, pmu_pd_off); + } + + pmu_power_domain_ctr(cpu_pd, pmu_pd_on); + } else { + if (pmu_power_domain_st(cpu_pd) == pmu_pd_on) { + WARN("%s: cpu%d is not in off,!\n", __func__, cpu_id); + return -EINVAL; + } + + mmio_write_32(PMU_BASE + PMU_CORE_PM_CON(cpu_id), + BIT(core_pm_sft_wakeup_en)); + dsb(); + } + + return 0; +} + +static int cpus_power_domain_off(uint32_t cpu_id, uint32_t pd_cfg) +{ + uint32_t cpu_pd; + uint32_t core_pm_value; + + cpu_pd = PD_CPUL0 + cpu_id; + if (pmu_power_domain_st(cpu_pd) == pmu_pd_off) + return 0; + + if (pd_cfg == core_pwr_pd) { + if (check_cpu_wfie(cpu_id, CKECK_WFEI_MSK)) + return -EINVAL; + + /* disable core_pm cfg */ + mmio_write_32(PMU_BASE + PMU_CORE_PM_CON(cpu_id), + CORES_PM_DISABLE); + + set_cpus_pwr_domain_cfg_info(cpu_id, pd_cfg); + pmu_power_domain_ctr(cpu_pd, pmu_pd_off); + } else { + set_cpus_pwr_domain_cfg_info(cpu_id, pd_cfg); + + core_pm_value = BIT(core_pm_en); + if (pd_cfg == core_pwr_wfi_int) + core_pm_value |= BIT(core_pm_int_wakeup_en); + mmio_write_32(PMU_BASE + PMU_CORE_PM_CON(cpu_id), + core_pm_value); + dsb(); + } + + return 0; +} + +static inline void clst_pwr_domain_suspend(plat_local_state_t lvl_state) +{ + uint32_t cpu_id = plat_my_core_pos(); + uint32_t pll_id, clst_st_msk, clst_st_chk_msk, pmu_st; + + assert(cpu_id < PLATFORM_CORE_COUNT); + + if (lvl_state == PLAT_MAX_OFF_STATE) { + if (cpu_id < PLATFORM_CLUSTER0_CORE_COUNT) { + pll_id = ALPLL_ID; + clst_st_msk = CLST_L_CPUS_MSK; + } else { + pll_id = ABPLL_ID; + clst_st_msk = CLST_B_CPUS_MSK << + PLATFORM_CLUSTER0_CORE_COUNT; + } + + clst_st_chk_msk = clst_st_msk & ~(BIT(cpu_id)); + + pmu_st = mmio_read_32(PMU_BASE + PMU_PWRDN_ST); + + pmu_st &= clst_st_msk; + + if (pmu_st == clst_st_chk_msk) { + mmio_write_32(CRU_BASE + CRU_PLL_CON(pll_id, 3), + PLL_SLOW_MODE); + + clst_warmboot_data[pll_id] = PMU_CLST_RET; + + pmu_st = mmio_read_32(PMU_BASE + PMU_PWRDN_ST); + pmu_st &= clst_st_msk; + if (pmu_st == clst_st_chk_msk) + return; + /* + * it is mean that others cpu is up again, + * we must resume the cfg at once. + */ + mmio_write_32(CRU_BASE + CRU_PLL_CON(pll_id, 3), + PLL_NOMAL_MODE); + clst_warmboot_data[pll_id] = 0; + } + } +} + +static int clst_pwr_domain_resume(plat_local_state_t lvl_state) +{ + uint32_t cpu_id = plat_my_core_pos(); + uint32_t pll_id, pll_st; + + assert(cpu_id < PLATFORM_CORE_COUNT); + + if (lvl_state == PLAT_MAX_OFF_STATE) { + if (cpu_id < PLATFORM_CLUSTER0_CORE_COUNT) + pll_id = ALPLL_ID; + else + pll_id = ABPLL_ID; + + pll_st = mmio_read_32(CRU_BASE + CRU_PLL_CON(pll_id, 3)) >> + PLL_MODE_SHIFT; + + if (pll_st != NORMAL_MODE) { + WARN("%s: clst (%d) is in error mode (%d)\n", + __func__, pll_id, pll_st); + return -1; + } + } + + return 0; +} + +static void nonboot_cpus_off(void) +{ + uint32_t boot_cpu, cpu; + + boot_cpu = plat_my_core_pos(); + + /* turn off noboot cpus */ + for (cpu = 0; cpu < PLATFORM_CORE_COUNT; cpu++) { + if (cpu == boot_cpu) + continue; + cpus_power_domain_off(cpu, core_pwr_pd); + } +} + +int rockchip_soc_cores_pwr_dm_on(unsigned long mpidr, uint64_t entrypoint) +{ + uint32_t cpu_id = plat_core_pos_by_mpidr(mpidr); + + assert(cpu_id < PLATFORM_CORE_COUNT); + assert(cpuson_flags[cpu_id] == 0); + cpuson_flags[cpu_id] = PMU_CPU_HOTPLUG; + cpuson_entry_point[cpu_id] = entrypoint; + dsb(); + + cpus_power_domain_on(cpu_id); + + return PSCI_E_SUCCESS; +} + +int rockchip_soc_cores_pwr_dm_off(void) +{ + uint32_t cpu_id = plat_my_core_pos(); + + cpus_power_domain_off(cpu_id, core_pwr_wfi); + + return PSCI_E_SUCCESS; +} + +int rockchip_soc_hlvl_pwr_dm_off(uint32_t lvl, + plat_local_state_t lvl_state) +{ + switch (lvl) { + case MPIDR_AFFLVL1: + clst_pwr_domain_suspend(lvl_state); + break; + default: + break; + } + + return PSCI_E_SUCCESS; +} + +int rockchip_soc_cores_pwr_dm_suspend(void) +{ + uint32_t cpu_id = plat_my_core_pos(); + + assert(cpu_id < PLATFORM_CORE_COUNT); + assert(cpuson_flags[cpu_id] == 0); + cpuson_flags[cpu_id] = PMU_CPU_AUTO_PWRDN; + cpuson_entry_point[cpu_id] = plat_get_sec_entrypoint(); + dsb(); + + cpus_power_domain_off(cpu_id, core_pwr_wfi_int); + + return PSCI_E_SUCCESS; +} + +int rockchip_soc_hlvl_pwr_dm_suspend(uint32_t lvl, plat_local_state_t lvl_state) +{ + switch (lvl) { + case MPIDR_AFFLVL1: + clst_pwr_domain_suspend(lvl_state); + break; + default: + break; + } + + return PSCI_E_SUCCESS; +} + +int rockchip_soc_cores_pwr_dm_on_finish(void) +{ + uint32_t cpu_id = plat_my_core_pos(); + + mmio_write_32(PMU_BASE + PMU_CORE_PM_CON(cpu_id), + CORES_PM_DISABLE); + return PSCI_E_SUCCESS; +} + +int rockchip_soc_hlvl_pwr_dm_on_finish(uint32_t lvl, + plat_local_state_t lvl_state) +{ + switch (lvl) { + case MPIDR_AFFLVL1: + clst_pwr_domain_resume(lvl_state); + break; + default: + break; + } + + return PSCI_E_SUCCESS; +} + +int rockchip_soc_cores_pwr_dm_resume(void) +{ + uint32_t cpu_id = plat_my_core_pos(); + + /* Disable core_pm */ + mmio_write_32(PMU_BASE + PMU_CORE_PM_CON(cpu_id), CORES_PM_DISABLE); + + return PSCI_E_SUCCESS; +} + +int rockchip_soc_hlvl_pwr_dm_resume(uint32_t lvl, plat_local_state_t lvl_state) +{ + switch (lvl) { + case MPIDR_AFFLVL1: + clst_pwr_domain_resume(lvl_state); + default: + break; + } + + return PSCI_E_SUCCESS; +} + +/** + * init_pmu_counts - Init timing counts in the PMU register area + * + * At various points when we power up or down parts of the system we need + * a delay to wait for power / clocks to become stable. The PMU has counters + * to help software do the delay properly. Basically, it works like this: + * - Software sets up counter values + * - When software turns on something in the PMU, the counter kicks off + * - The hardware sets a bit automatically when the counter has finished and + * software knows that the initialization is done. + * + * It's software's job to setup these counters. The hardware power on default + * for these settings is conservative, setting everything to 0x5dc0 + * (750 ms in 32 kHz counts or 1 ms in 24 MHz counts). + * + * Note that some of these counters are only really used at suspend/resume + * time (for instance, that's the only time we turn off/on the oscillator) and + * others are used during normal runtime (like turning on/off a CPU or GPU) but + * it doesn't hurt to init everything at boot. + * + * Also note that these counters can run off the 32 kHz clock or the 24 MHz + * clock. While the 24 MHz clock can give us more precision, it's not always + * available (like when we turn the oscillator off at sleep time). The + * pmu_use_lf (lf: low freq) is available in power mode. Current understanding + * is that counts work like this: + * IF (pmu_use_lf == 0) || (power_mode_en == 0) + * use the 24M OSC for counts + * ELSE + * use the 32K OSC for counts + * + * Notes: + * - There is a separate bit for the PMU called PMU_24M_EN_CFG. At the moment + * we always keep that 0. This apparently choose between using the PLL as + * the source for the PMU vs. the 24M clock. If we ever set it to 1 we + * should consider how it affects these counts (if at all). + * - The power_mode_en is documented to auto-clear automatically when we leave + * "power mode". That's why most clocks are on 24M. Only timings used when + * in "power mode" are 32k. + * - In some cases the kernel may override these counts. + * + * The PMU_STABLE_CNT / PMU_OSC_CNT / PMU_PLLLOCK_CNT are important CNTs + * in power mode, we need to ensure that they are available. + */ +static void init_pmu_counts(void) +{ + /* COUNTS FOR INSIDE POWER MODE */ + + /* + * From limited testing, need PMU stable >= 2ms, but go overkill + * and choose 30 ms to match testing on past SoCs. Also let + * OSC have 30 ms for stabilization. + */ + mmio_write_32(PMU_BASE + PMU_STABLE_CNT, CYCL_32K_CNT_MS(30)); + mmio_write_32(PMU_BASE + PMU_OSC_CNT, CYCL_32K_CNT_MS(30)); + + /* Unclear what these should be; try 3 ms */ + mmio_write_32(PMU_BASE + PMU_WAKEUP_RST_CLR_CNT, CYCL_32K_CNT_MS(3)); + + /* Unclear what this should be, but set the default explicitly */ + mmio_write_32(PMU_BASE + PMU_TIMEOUT_CNT, 0x5dc0); + + /* COUNTS FOR OUTSIDE POWER MODE */ + + /* Put something sorta conservative here until we know better */ + mmio_write_32(PMU_BASE + PMU_PLLLOCK_CNT, CYCL_24M_CNT_MS(3)); + mmio_write_32(PMU_BASE + PMU_DDRIO_PWRON_CNT, CYCL_24M_CNT_MS(1)); + mmio_write_32(PMU_BASE + PMU_CENTER_PWRDN_CNT, CYCL_24M_CNT_MS(1)); + mmio_write_32(PMU_BASE + PMU_CENTER_PWRUP_CNT, CYCL_24M_CNT_MS(1)); + + /* + * when we enable PMU_CLR_PERILP, it will shut down the SRAM, but + * M0 code run in SRAM, and we need it to check whether cpu enter + * FSM status, so we must wait M0 finish their code and enter WFI, + * then we can shutdown SRAM, according FSM order: + * ST_NORMAL->..->ST_SCU_L_PWRDN->..->ST_CENTER_PWRDN->ST_PERILP_PWRDN + * we can add delay when shutdown ST_SCU_L_PWRDN to guarantee M0 get + * the FSM status and enter WFI, then enable PMU_CLR_PERILP. + */ + mmio_write_32(PMU_BASE + PMU_SCU_L_PWRDN_CNT, CYCL_24M_CNT_MS(5)); + mmio_write_32(PMU_BASE + PMU_SCU_L_PWRUP_CNT, CYCL_24M_CNT_US(1)); + + /* + * Set CPU/GPU to 1 us. + * + * NOTE: Even though ATF doesn't configure the GPU we'll still setup + * counts here. After all ATF controls all these other bits and also + * chooses which clock these counters use. + */ + mmio_write_32(PMU_BASE + PMU_SCU_B_PWRDN_CNT, CYCL_24M_CNT_US(1)); + mmio_write_32(PMU_BASE + PMU_SCU_B_PWRUP_CNT, CYCL_24M_CNT_US(1)); + mmio_write_32(PMU_BASE + PMU_GPU_PWRDN_CNT, CYCL_24M_CNT_US(1)); + mmio_write_32(PMU_BASE + PMU_GPU_PWRUP_CNT, CYCL_24M_CNT_US(1)); +} + +static uint32_t clk_ddrc_save; + +static void sys_slp_config(void) +{ + uint32_t slp_mode_cfg = 0; + + /* keep enabling clk_ddrc_bpll_src_en gate for DDRC */ + clk_ddrc_save = mmio_read_32(CRU_BASE + CRU_CLKGATE_CON(3)); + mmio_write_32(CRU_BASE + CRU_CLKGATE_CON(3), WMSK_BIT(1)); + + prepare_abpll_for_ddrctrl(); + sram_func_set_ddrctl_pll(ABPLL_ID); + + mmio_write_32(GRF_BASE + GRF_SOC_CON4, CCI_FORCE_WAKEUP); + mmio_write_32(PMU_BASE + PMU_CCI500_CON, + BIT_WITH_WMSK(PMU_CLR_PREQ_CCI500_HW) | + BIT_WITH_WMSK(PMU_CLR_QREQ_CCI500_HW) | + BIT_WITH_WMSK(PMU_QGATING_CCI500_CFG)); + + mmio_write_32(PMU_BASE + PMU_ADB400_CON, + BIT_WITH_WMSK(PMU_CLR_CORE_L_HW) | + BIT_WITH_WMSK(PMU_CLR_CORE_L_2GIC_HW) | + BIT_WITH_WMSK(PMU_CLR_GIC2_CORE_L_HW)); + + slp_mode_cfg = BIT(PMU_PWR_MODE_EN) | + BIT(PMU_INPUT_CLAMP_EN) | + BIT(PMU_POWER_OFF_REQ_CFG) | + BIT(PMU_CPU0_PD_EN) | + BIT(PMU_L2_FLUSH_EN) | + BIT(PMU_L2_IDLE_EN) | + BIT(PMU_SCU_PD_EN) | + BIT(PMU_CCI_PD_EN) | + BIT(PMU_CLK_CORE_SRC_GATE_EN) | + BIT(PMU_ALIVE_USE_LF) | + BIT(PMU_SREF0_ENTER_EN) | + BIT(PMU_SREF1_ENTER_EN) | + BIT(PMU_DDRC0_GATING_EN) | + BIT(PMU_DDRC1_GATING_EN) | + BIT(PMU_DDRIO0_RET_EN) | + BIT(PMU_DDRIO0_RET_DE_REQ) | + BIT(PMU_DDRIO1_RET_EN) | + BIT(PMU_DDRIO1_RET_DE_REQ) | + BIT(PMU_DDRIO_RET_HW_DE_REQ) | + BIT(PMU_CENTER_PD_EN) | + BIT(PMU_PERILP_PD_EN) | + BIT(PMU_CLK_PERILP_SRC_GATE_EN) | + BIT(PMU_PLL_PD_EN) | + BIT(PMU_CLK_CENTER_SRC_GATE_EN) | + BIT(PMU_OSC_DIS) | + BIT(PMU_PMU_USE_LF); + + mmio_setbits_32(PMU_BASE + PMU_WKUP_CFG4, BIT(PMU_GPIO_WKUP_EN)); + mmio_write_32(PMU_BASE + PMU_PWRMODE_CON, slp_mode_cfg); + + mmio_write_32(PMU_BASE + PMU_PLL_CON, PLL_PD_HW); + mmio_write_32(PMUGRF_BASE + PMUGRF_SOC_CON0, EXTERNAL_32K); + mmio_write_32(PMUGRF_BASE, IOMUX_CLK_32K); /* 32k iomux */ +} + +static void set_hw_idle(uint32_t hw_idle) +{ + mmio_setbits_32(PMU_BASE + PMU_BUS_CLR, hw_idle); +} + +static void clr_hw_idle(uint32_t hw_idle) +{ + mmio_clrbits_32(PMU_BASE + PMU_BUS_CLR, hw_idle); +} + +static uint32_t iomux_status[12]; +static uint32_t pull_mode_status[12]; +static uint32_t gpio_direction[3]; +static uint32_t gpio_2_4_clk_gate; + +static void suspend_apio(void) +{ + struct apio_info *suspend_apio; + int i; + + suspend_apio = plat_get_rockchip_suspend_apio(); + + if (!suspend_apio) + return; + + /* save gpio2 ~ gpio4 iomux and pull mode */ + for (i = 0; i < 12; i++) { + iomux_status[i] = mmio_read_32(GRF_BASE + + GRF_GPIO2A_IOMUX + i * 4); + pull_mode_status[i] = mmio_read_32(GRF_BASE + + GRF_GPIO2A_P + i * 4); + } + + /* store gpio2 ~ gpio4 clock gate state */ + gpio_2_4_clk_gate = (mmio_read_32(CRU_BASE + CRU_CLKGATE_CON(31)) >> + PCLK_GPIO2_GATE_SHIFT) & 0x07; + + /* enable gpio2 ~ gpio4 clock gate */ + mmio_write_32(CRU_BASE + CRU_CLKGATE_CON(31), + BITS_WITH_WMASK(0, 0x07, PCLK_GPIO2_GATE_SHIFT)); + + /* save gpio2 ~ gpio4 direction */ + gpio_direction[0] = mmio_read_32(GPIO2_BASE + 0x04); + gpio_direction[1] = mmio_read_32(GPIO3_BASE + 0x04); + gpio_direction[2] = mmio_read_32(GPIO4_BASE + 0x04); + + /* apio1 charge gpio3a0 ~ gpio3c7 */ + if (suspend_apio->apio1) { + + /* set gpio3a0 ~ gpio3c7 iomux to gpio */ + mmio_write_32(GRF_BASE + GRF_GPIO3A_IOMUX, + REG_SOC_WMSK | GRF_IOMUX_GPIO); + mmio_write_32(GRF_BASE + GRF_GPIO3B_IOMUX, + REG_SOC_WMSK | GRF_IOMUX_GPIO); + mmio_write_32(GRF_BASE + GRF_GPIO3C_IOMUX, + REG_SOC_WMSK | GRF_IOMUX_GPIO); + + /* set gpio3a0 ~ gpio3c7 pull mode to pull none */ + mmio_write_32(GRF_BASE + GRF_GPIO3A_P, REG_SOC_WMSK | 0); + mmio_write_32(GRF_BASE + GRF_GPIO3B_P, REG_SOC_WMSK | 0); + mmio_write_32(GRF_BASE + GRF_GPIO3C_P, REG_SOC_WMSK | 0); + + /* set gpio3a0 ~ gpio3c7 to input */ + mmio_clrbits_32(GPIO3_BASE + 0x04, 0x00ffffff); + } + + /* apio2 charge gpio2a0 ~ gpio2b4 */ + if (suspend_apio->apio2) { + + /* set gpio2a0 ~ gpio2b4 iomux to gpio */ + mmio_write_32(GRF_BASE + GRF_GPIO2A_IOMUX, + REG_SOC_WMSK | GRF_IOMUX_GPIO); + mmio_write_32(GRF_BASE + GRF_GPIO2B_IOMUX, + REG_SOC_WMSK | GRF_IOMUX_GPIO); + + /* set gpio2a0 ~ gpio2b4 pull mode to pull none */ + mmio_write_32(GRF_BASE + GRF_GPIO2A_P, REG_SOC_WMSK | 0); + mmio_write_32(GRF_BASE + GRF_GPIO2B_P, REG_SOC_WMSK | 0); + + /* set gpio2a0 ~ gpio2b4 to input */ + mmio_clrbits_32(GPIO2_BASE + 0x04, 0x00001fff); + } + + /* apio3 charge gpio2c0 ~ gpio2d4*/ + if (suspend_apio->apio3) { + + /* set gpio2a0 ~ gpio2b4 iomux to gpio */ + mmio_write_32(GRF_BASE + GRF_GPIO2C_IOMUX, + REG_SOC_WMSK | GRF_IOMUX_GPIO); + mmio_write_32(GRF_BASE + GRF_GPIO2D_IOMUX, + REG_SOC_WMSK | GRF_IOMUX_GPIO); + + /* set gpio2c0 ~ gpio2d4 pull mode to pull none */ + mmio_write_32(GRF_BASE + GRF_GPIO2C_P, REG_SOC_WMSK | 0); + mmio_write_32(GRF_BASE + GRF_GPIO2D_P, REG_SOC_WMSK | 0); + + /* set gpio2c0 ~ gpio2d4 to input */ + mmio_clrbits_32(GPIO2_BASE + 0x04, 0x1fff0000); + } + + /* apio4 charge gpio4c0 ~ gpio4c7, gpio4d0 ~ gpio4d6 */ + if (suspend_apio->apio4) { + + /* set gpio4c0 ~ gpio4d6 iomux to gpio */ + mmio_write_32(GRF_BASE + GRF_GPIO4C_IOMUX, + REG_SOC_WMSK | GRF_IOMUX_GPIO); + mmio_write_32(GRF_BASE + GRF_GPIO4D_IOMUX, + REG_SOC_WMSK | GRF_IOMUX_GPIO); + + /* set gpio4c0 ~ gpio4d6 pull mode to pull none */ + mmio_write_32(GRF_BASE + GRF_GPIO4C_P, REG_SOC_WMSK | 0); + mmio_write_32(GRF_BASE + GRF_GPIO4D_P, REG_SOC_WMSK | 0); + + /* set gpio4c0 ~ gpio4d6 to input */ + mmio_clrbits_32(GPIO4_BASE + 0x04, 0x7fff0000); + } + + /* apio5 charge gpio3d0 ~ gpio3d7, gpio4a0 ~ gpio4a7*/ + if (suspend_apio->apio5) { + /* set gpio3d0 ~ gpio4a7 iomux to gpio */ + mmio_write_32(GRF_BASE + GRF_GPIO3D_IOMUX, + REG_SOC_WMSK | GRF_IOMUX_GPIO); + mmio_write_32(GRF_BASE + GRF_GPIO4A_IOMUX, + REG_SOC_WMSK | GRF_IOMUX_GPIO); + + /* set gpio3d0 ~ gpio4a7 pull mode to pull none */ + mmio_write_32(GRF_BASE + GRF_GPIO3D_P, REG_SOC_WMSK | 0); + mmio_write_32(GRF_BASE + GRF_GPIO4A_P, REG_SOC_WMSK | 0); + + /* set gpio4c0 ~ gpio4d6 to input */ + mmio_clrbits_32(GPIO3_BASE + 0x04, 0xff000000); + mmio_clrbits_32(GPIO4_BASE + 0x04, 0x000000ff); + } +} + +static void resume_apio(void) +{ + struct apio_info *suspend_apio; + int i; + + suspend_apio = plat_get_rockchip_suspend_apio(); + + if (!suspend_apio) + return; + + for (i = 0; i < 12; i++) { + mmio_write_32(GRF_BASE + GRF_GPIO2A_P + i * 4, + REG_SOC_WMSK | pull_mode_status[i]); + mmio_write_32(GRF_BASE + GRF_GPIO2A_IOMUX + i * 4, + REG_SOC_WMSK | iomux_status[i]); + } + + /* set gpio2 ~ gpio4 direction back to store value */ + mmio_write_32(GPIO2_BASE + 0x04, gpio_direction[0]); + mmio_write_32(GPIO3_BASE + 0x04, gpio_direction[1]); + mmio_write_32(GPIO4_BASE + 0x04, gpio_direction[2]); + + /* set gpio2 ~ gpio4 clock gate back to store value */ + mmio_write_32(CRU_BASE + CRU_CLKGATE_CON(31), + BITS_WITH_WMASK(gpio_2_4_clk_gate, 0x07, + PCLK_GPIO2_GATE_SHIFT)); +} + +static void suspend_gpio(void) +{ + struct gpio_info *suspend_gpio; + uint32_t count; + int i; + + suspend_gpio = plat_get_rockchip_suspend_gpio(&count); + + for (i = 0; i < count; i++) { + gpio_set_value(suspend_gpio[i].index, suspend_gpio[i].polarity); + gpio_set_direction(suspend_gpio[i].index, GPIO_DIR_OUT); + udelay(1); + } +} + +static void resume_gpio(void) +{ + struct gpio_info *suspend_gpio; + uint32_t count; + int i; + + suspend_gpio = plat_get_rockchip_suspend_gpio(&count); + + for (i = count - 1; i >= 0; i--) { + gpio_set_value(suspend_gpio[i].index, + !suspend_gpio[i].polarity); + gpio_set_direction(suspend_gpio[i].index, GPIO_DIR_OUT); + udelay(1); + } +} + +static void m0_configure_suspend(void) +{ + /* set PARAM to M0_FUNC_SUSPEND */ + mmio_write_32(M0_PARAM_ADDR + PARAM_M0_FUNC, M0_FUNC_SUSPEND); +} + +void sram_save(void) +{ + size_t text_size = (char *)&__bl31_sram_text_real_end - + (char *)&__bl31_sram_text_start; + size_t data_size = (char *)&__bl31_sram_data_real_end - + (char *)&__bl31_sram_data_start; + size_t incbin_size = (char *)&__sram_incbin_real_end - + (char *)&__sram_incbin_start; + + memcpy(&store_sram[0], &__bl31_sram_text_start, text_size); + memcpy(&store_sram[text_size], &__bl31_sram_data_start, data_size); + memcpy(&store_sram[text_size + data_size], &__sram_incbin_start, + incbin_size); +} + +void sram_restore(void) +{ + size_t text_size = (char *)&__bl31_sram_text_real_end - + (char *)&__bl31_sram_text_start; + size_t data_size = (char *)&__bl31_sram_data_real_end - + (char *)&__bl31_sram_data_start; + size_t incbin_size = (char *)&__sram_incbin_real_end - + (char *)&__sram_incbin_start; + + memcpy(&__bl31_sram_text_start, &store_sram[0], text_size); + memcpy(&__bl31_sram_data_start, &store_sram[text_size], data_size); + memcpy(&__sram_incbin_start, &store_sram[text_size + data_size], + incbin_size); +} + +struct uart_debug { + uint32_t uart_dll; + uint32_t uart_dlh; + uint32_t uart_ier; + uint32_t uart_fcr; + uint32_t uart_mcr; + uint32_t uart_lcr; +}; + +#define UART_DLL 0x00 +#define UART_DLH 0x04 +#define UART_IER 0x04 +#define UART_FCR 0x08 +#define UART_LCR 0x0c +#define UART_MCR 0x10 +#define UARTSRR 0x88 + +#define UART_RESET BIT(0) +#define UARTFCR_FIFOEN BIT(0) +#define RCVR_FIFO_RESET BIT(1) +#define XMIT_FIFO_RESET BIT(2) +#define DIAGNOSTIC_MODE BIT(4) +#define UARTLCR_DLAB BIT(7) + +static struct uart_debug uart_save; + +void suspend_uart(void) +{ + uart_save.uart_lcr = mmio_read_32(PLAT_RK_UART_BASE + UART_LCR); + uart_save.uart_ier = mmio_read_32(PLAT_RK_UART_BASE + UART_IER); + uart_save.uart_mcr = mmio_read_32(PLAT_RK_UART_BASE + UART_MCR); + mmio_write_32(PLAT_RK_UART_BASE + UART_LCR, + uart_save.uart_lcr | UARTLCR_DLAB); + uart_save.uart_dll = mmio_read_32(PLAT_RK_UART_BASE + UART_DLL); + uart_save.uart_dlh = mmio_read_32(PLAT_RK_UART_BASE + UART_DLH); + mmio_write_32(PLAT_RK_UART_BASE + UART_LCR, uart_save.uart_lcr); +} + +void resume_uart(void) +{ + uint32_t uart_lcr; + + mmio_write_32(PLAT_RK_UART_BASE + UARTSRR, + XMIT_FIFO_RESET | RCVR_FIFO_RESET | UART_RESET); + + uart_lcr = mmio_read_32(PLAT_RK_UART_BASE + UART_LCR); + mmio_write_32(PLAT_RK_UART_BASE + UART_MCR, DIAGNOSTIC_MODE); + mmio_write_32(PLAT_RK_UART_BASE + UART_LCR, uart_lcr | UARTLCR_DLAB); + mmio_write_32(PLAT_RK_UART_BASE + UART_DLL, uart_save.uart_dll); + mmio_write_32(PLAT_RK_UART_BASE + UART_DLH, uart_save.uart_dlh); + mmio_write_32(PLAT_RK_UART_BASE + UART_LCR, uart_save.uart_lcr); + mmio_write_32(PLAT_RK_UART_BASE + UART_IER, uart_save.uart_ier); + mmio_write_32(PLAT_RK_UART_BASE + UART_FCR, UARTFCR_FIFOEN); + mmio_write_32(PLAT_RK_UART_BASE + UART_MCR, uart_save.uart_mcr); +} + +void save_usbphy(void) +{ + store_usbphy0[0] = mmio_read_32(GRF_BASE + GRF_USBPHY0_CTRL0); + store_usbphy0[1] = mmio_read_32(GRF_BASE + GRF_USBPHY0_CTRL2); + store_usbphy0[2] = mmio_read_32(GRF_BASE + GRF_USBPHY0_CTRL3); + store_usbphy0[3] = mmio_read_32(GRF_BASE + GRF_USBPHY0_CTRL12); + store_usbphy0[4] = mmio_read_32(GRF_BASE + GRF_USBPHY0_CTRL13); + store_usbphy0[5] = mmio_read_32(GRF_BASE + GRF_USBPHY0_CTRL15); + store_usbphy0[6] = mmio_read_32(GRF_BASE + GRF_USBPHY0_CTRL16); + + store_usbphy1[0] = mmio_read_32(GRF_BASE + GRF_USBPHY1_CTRL0); + store_usbphy1[1] = mmio_read_32(GRF_BASE + GRF_USBPHY1_CTRL2); + store_usbphy1[2] = mmio_read_32(GRF_BASE + GRF_USBPHY1_CTRL3); + store_usbphy1[3] = mmio_read_32(GRF_BASE + GRF_USBPHY1_CTRL12); + store_usbphy1[4] = mmio_read_32(GRF_BASE + GRF_USBPHY1_CTRL13); + store_usbphy1[5] = mmio_read_32(GRF_BASE + GRF_USBPHY1_CTRL15); + store_usbphy1[6] = mmio_read_32(GRF_BASE + GRF_USBPHY1_CTRL16); +} + +void restore_usbphy(void) +{ + mmio_write_32(GRF_BASE + GRF_USBPHY0_CTRL0, + REG_SOC_WMSK | store_usbphy0[0]); + mmio_write_32(GRF_BASE + GRF_USBPHY0_CTRL2, + REG_SOC_WMSK | store_usbphy0[1]); + mmio_write_32(GRF_BASE + GRF_USBPHY0_CTRL3, + REG_SOC_WMSK | store_usbphy0[2]); + mmio_write_32(GRF_BASE + GRF_USBPHY0_CTRL12, + REG_SOC_WMSK | store_usbphy0[3]); + mmio_write_32(GRF_BASE + GRF_USBPHY0_CTRL13, + REG_SOC_WMSK | store_usbphy0[4]); + mmio_write_32(GRF_BASE + GRF_USBPHY0_CTRL15, + REG_SOC_WMSK | store_usbphy0[5]); + mmio_write_32(GRF_BASE + GRF_USBPHY0_CTRL16, + REG_SOC_WMSK | store_usbphy0[6]); + + mmio_write_32(GRF_BASE + GRF_USBPHY1_CTRL0, + REG_SOC_WMSK | store_usbphy1[0]); + mmio_write_32(GRF_BASE + GRF_USBPHY1_CTRL2, + REG_SOC_WMSK | store_usbphy1[1]); + mmio_write_32(GRF_BASE + GRF_USBPHY1_CTRL3, + REG_SOC_WMSK | store_usbphy1[2]); + mmio_write_32(GRF_BASE + GRF_USBPHY1_CTRL12, + REG_SOC_WMSK | store_usbphy1[3]); + mmio_write_32(GRF_BASE + GRF_USBPHY1_CTRL13, + REG_SOC_WMSK | store_usbphy1[4]); + mmio_write_32(GRF_BASE + GRF_USBPHY1_CTRL15, + REG_SOC_WMSK | store_usbphy1[5]); + mmio_write_32(GRF_BASE + GRF_USBPHY1_CTRL16, + REG_SOC_WMSK | store_usbphy1[6]); +} + +void grf_register_save(void) +{ + int i; + + store_grf_soc_con0 = mmio_read_32(GRF_BASE + GRF_SOC_CON(0)); + store_grf_soc_con1 = mmio_read_32(GRF_BASE + GRF_SOC_CON(1)); + store_grf_soc_con2 = mmio_read_32(GRF_BASE + GRF_SOC_CON(2)); + store_grf_soc_con3 = mmio_read_32(GRF_BASE + GRF_SOC_CON(3)); + store_grf_soc_con4 = mmio_read_32(GRF_BASE + GRF_SOC_CON(4)); + store_grf_soc_con7 = mmio_read_32(GRF_BASE + GRF_SOC_CON(7)); + + for (i = 0; i < 4; i++) + store_grf_ddrc_con[i] = + mmio_read_32(GRF_BASE + GRF_DDRC0_CON0 + i * 4); + + store_grf_io_vsel = mmio_read_32(GRF_BASE + GRF_IO_VSEL); +} + +void grf_register_restore(void) +{ + int i; + + mmio_write_32(GRF_BASE + GRF_SOC_CON(0), + REG_SOC_WMSK | store_grf_soc_con0); + mmio_write_32(GRF_BASE + GRF_SOC_CON(1), + REG_SOC_WMSK | store_grf_soc_con1); + mmio_write_32(GRF_BASE + GRF_SOC_CON(2), + REG_SOC_WMSK | store_grf_soc_con2); + mmio_write_32(GRF_BASE + GRF_SOC_CON(3), + REG_SOC_WMSK | store_grf_soc_con3); + mmio_write_32(GRF_BASE + GRF_SOC_CON(4), + REG_SOC_WMSK | store_grf_soc_con4); + mmio_write_32(GRF_BASE + GRF_SOC_CON(7), + REG_SOC_WMSK | store_grf_soc_con7); + + for (i = 0; i < 4; i++) + mmio_write_32(GRF_BASE + GRF_DDRC0_CON0 + i * 4, + REG_SOC_WMSK | store_grf_ddrc_con[i]); + + mmio_write_32(GRF_BASE + GRF_IO_VSEL, REG_SOC_WMSK | store_grf_io_vsel); +} + +void cru_register_save(void) +{ + int i; + + for (i = 0; i <= CRU_SDIO0_CON1; i = i + 4) + store_cru[i / 4] = mmio_read_32(CRU_BASE + i); +} + +void cru_register_restore(void) +{ + int i; + + for (i = 0; i <= CRU_SDIO0_CON1; i = i + 4) { + + /* + * since DPLL, CRU_CLKSEL_CON6 have been restore in + * dmc_resume, ABPLL will resote later, so skip them + */ + if ((i == CRU_CLKSEL_CON6) || + (i >= CRU_PLL_CON(ABPLL_ID, 0) && + i <= CRU_PLL_CON(DPLL_ID, 5))) + continue; + + if ((i == CRU_PLL_CON(ALPLL_ID, 2)) || + (i == CRU_PLL_CON(CPLL_ID, 2)) || + (i == CRU_PLL_CON(GPLL_ID, 2)) || + (i == CRU_PLL_CON(NPLL_ID, 2)) || + (i == CRU_PLL_CON(VPLL_ID, 2))) + mmio_write_32(CRU_BASE + i, store_cru[i / 4]); + /* + * CRU_GLB_CNT_TH and CRU_CLKSEL_CON97~CRU_CLKSEL_CON107 + * not need do high 16bit mask + */ + else if ((i > 0x27c && i < 0x2b0) || (i == 0x508)) + mmio_write_32(CRU_BASE + i, store_cru[i / 4]); + else + mmio_write_32(CRU_BASE + i, + REG_SOC_WMSK | store_cru[i / 4]); + } +} + +void wdt_register_save(void) +{ + int i; + + for (i = 0; i < 2; i++) { + store_wdt0[i] = mmio_read_32(WDT0_BASE + i * 4); + store_wdt1[i] = mmio_read_32(WDT1_BASE + i * 4); + } +} + +void wdt_register_restore(void) +{ + int i; + + for (i = 0; i < 2; i++) { + mmio_write_32(WDT0_BASE + i * 4, store_wdt0[i]); + mmio_write_32(WDT1_BASE + i * 4, store_wdt1[i]); + } +} + +int rockchip_soc_sys_pwr_dm_suspend(void) +{ + uint32_t wait_cnt = 0; + uint32_t status = 0; + + ddr_prepare_for_sys_suspend(); + dmc_suspend(); + pmu_scu_b_pwrdn(); + + /* need to save usbphy before shutdown PERIHP PD */ + save_usbphy(); + + pmu_power_domains_suspend(); + set_hw_idle(BIT(PMU_CLR_CENTER1) | + BIT(PMU_CLR_ALIVE) | + BIT(PMU_CLR_MSCH0) | + BIT(PMU_CLR_MSCH1) | + BIT(PMU_CLR_CCIM0) | + BIT(PMU_CLR_CCIM1) | + BIT(PMU_CLR_CENTER) | + BIT(PMU_CLR_PERILP) | + BIT(PMU_CLR_PERILPM0) | + BIT(PMU_CLR_GIC)); + set_pmu_rsthold(); + sys_slp_config(); + + m0_configure_suspend(); + m0_start(); + + pmu_sgrf_rst_hld(); + + mmio_write_32(SGRF_BASE + SGRF_SOC_CON(1), + ((uintptr_t)&pmu_cpuson_entrypoint >> + CPU_BOOT_ADDR_ALIGN) | CPU_BOOT_ADDR_WMASK); + + mmio_write_32(PMU_BASE + PMU_ADB400_CON, + BIT_WITH_WMSK(PMU_PWRDWN_REQ_CORE_B_2GIC_SW) | + BIT_WITH_WMSK(PMU_PWRDWN_REQ_CORE_B_SW) | + BIT_WITH_WMSK(PMU_PWRDWN_REQ_GIC2_CORE_B_SW)); + dsb(); + status = BIT(PMU_PWRDWN_REQ_CORE_B_2GIC_SW_ST) | + BIT(PMU_PWRDWN_REQ_CORE_B_SW_ST) | + BIT(PMU_PWRDWN_REQ_GIC2_CORE_B_SW_ST); + while ((mmio_read_32(PMU_BASE + + PMU_ADB400_ST) & status) != status) { + wait_cnt++; + if (wait_cnt >= MAX_WAIT_COUNT) { + ERROR("%s:wait cluster-b l2(%x)\n", __func__, + mmio_read_32(PMU_BASE + PMU_ADB400_ST)); + panic(); + } + } + mmio_setbits_32(PMU_BASE + PMU_PWRDN_CON, BIT(PMU_SCU_B_PWRDWN_EN)); + + secure_watchdog_disable(); + + /* + * Disabling PLLs/PWM/DVFS is approaching WFI which is + * the last steps in suspend. + */ + disable_dvfs_plls(); + disable_pwms(); + disable_nodvfs_plls(); + + suspend_apio(); + suspend_gpio(); + suspend_uart(); + grf_register_save(); + cru_register_save(); + wdt_register_save(); + sram_save(); + plat_rockchip_save_gpio(); + + return 0; +} + +int rockchip_soc_sys_pwr_dm_resume(void) +{ + uint32_t wait_cnt = 0; + uint32_t status = 0; + + plat_rockchip_restore_gpio(); + wdt_register_restore(); + cru_register_restore(); + grf_register_restore(); + resume_uart(); + resume_apio(); + resume_gpio(); + enable_nodvfs_plls(); + enable_pwms(); + /* PWM regulators take time to come up; give 300us to be safe. */ + udelay(300); + enable_dvfs_plls(); + + secure_watchdog_enable(); + secure_sgrf_init(); + secure_sgrf_ddr_rgn_init(); + + /* restore clk_ddrc_bpll_src_en gate */ + mmio_write_32(CRU_BASE + CRU_CLKGATE_CON(3), + BITS_WITH_WMASK(clk_ddrc_save, 0xff, 0)); + + /* + * The wakeup status is not cleared by itself, we need to clear it + * manually. Otherwise we will alway query some interrupt next time. + * + * NOTE: If the kernel needs to query this, we might want to stash it + * somewhere. + */ + mmio_write_32(PMU_BASE + PMU_WAKEUP_STATUS, 0xffffffff); + mmio_write_32(PMU_BASE + PMU_WKUP_CFG4, 0x00); + + mmio_write_32(SGRF_BASE + SGRF_SOC_CON(1), + (cpu_warm_boot_addr >> CPU_BOOT_ADDR_ALIGN) | + CPU_BOOT_ADDR_WMASK); + + mmio_write_32(PMU_BASE + PMU_CCI500_CON, + WMSK_BIT(PMU_CLR_PREQ_CCI500_HW) | + WMSK_BIT(PMU_CLR_QREQ_CCI500_HW) | + WMSK_BIT(PMU_QGATING_CCI500_CFG)); + dsb(); + mmio_clrbits_32(PMU_BASE + PMU_PWRDN_CON, + BIT(PMU_SCU_B_PWRDWN_EN)); + + mmio_write_32(PMU_BASE + PMU_ADB400_CON, + WMSK_BIT(PMU_PWRDWN_REQ_CORE_B_2GIC_SW) | + WMSK_BIT(PMU_PWRDWN_REQ_CORE_B_SW) | + WMSK_BIT(PMU_PWRDWN_REQ_GIC2_CORE_B_SW) | + WMSK_BIT(PMU_CLR_CORE_L_HW) | + WMSK_BIT(PMU_CLR_CORE_L_2GIC_HW) | + WMSK_BIT(PMU_CLR_GIC2_CORE_L_HW)); + + status = BIT(PMU_PWRDWN_REQ_CORE_B_2GIC_SW_ST) | + BIT(PMU_PWRDWN_REQ_CORE_B_SW_ST) | + BIT(PMU_PWRDWN_REQ_GIC2_CORE_B_SW_ST); + + while ((mmio_read_32(PMU_BASE + + PMU_ADB400_ST) & status)) { + wait_cnt++; + if (wait_cnt >= MAX_WAIT_COUNT) { + ERROR("%s:wait cluster-b l2(%x)\n", __func__, + mmio_read_32(PMU_BASE + PMU_ADB400_ST)); + panic(); + } + } + + pmu_sgrf_rst_hld_release(); + pmu_scu_b_pwrup(); + pmu_power_domains_resume(); + + restore_abpll(); + restore_pmu_rsthold(); + clr_hw_idle(BIT(PMU_CLR_CENTER1) | + BIT(PMU_CLR_ALIVE) | + BIT(PMU_CLR_MSCH0) | + BIT(PMU_CLR_MSCH1) | + BIT(PMU_CLR_CCIM0) | + BIT(PMU_CLR_CCIM1) | + BIT(PMU_CLR_CENTER) | + BIT(PMU_CLR_PERILP) | + BIT(PMU_CLR_PERILPM0) | + BIT(PMU_CLR_GIC)); + + plat_rockchip_gic_cpuif_enable(); + m0_stop(); + + restore_usbphy(); + + ddr_prepare_for_sys_resume(); + + return 0; +} + +void __dead2 rockchip_soc_soft_reset(void) +{ + struct gpio_info *rst_gpio; + + rst_gpio = plat_get_rockchip_gpio_reset(); + + if (rst_gpio) { + gpio_set_direction(rst_gpio->index, GPIO_DIR_OUT); + gpio_set_value(rst_gpio->index, rst_gpio->polarity); + } else { + soc_global_soft_reset(); + } + + while (1) + ; +} + +void __dead2 rockchip_soc_system_off(void) +{ + struct gpio_info *poweroff_gpio; + + poweroff_gpio = plat_get_rockchip_gpio_poweroff(); + + if (poweroff_gpio) { + /* + * if use tsadc over temp pin(GPIO1A6) as shutdown gpio, + * need to set this pin iomux back to gpio function + */ + if (poweroff_gpio->index == TSADC_INT_PIN) { + mmio_write_32(PMUGRF_BASE + PMUGRF_GPIO1A_IOMUX, + GPIO1A6_IOMUX); + } + gpio_set_direction(poweroff_gpio->index, GPIO_DIR_OUT); + gpio_set_value(poweroff_gpio->index, poweroff_gpio->polarity); + } else { + WARN("Do nothing when system off\n"); + } + + while (1) + ; +} + +void rockchip_plat_mmu_el3(void) +{ + size_t sram_size; + + /* sram.text size */ + sram_size = (char *)&__bl31_sram_text_end - + (char *)&__bl31_sram_text_start; + mmap_add_region((unsigned long)&__bl31_sram_text_start, + (unsigned long)&__bl31_sram_text_start, + sram_size, MT_MEMORY | MT_RO | MT_SECURE); + + /* sram.data size */ + sram_size = (char *)&__bl31_sram_data_end - + (char *)&__bl31_sram_data_start; + mmap_add_region((unsigned long)&__bl31_sram_data_start, + (unsigned long)&__bl31_sram_data_start, + sram_size, MT_MEMORY | MT_RW | MT_SECURE); + + sram_size = (char *)&__bl31_sram_stack_end - + (char *)&__bl31_sram_stack_start; + mmap_add_region((unsigned long)&__bl31_sram_stack_start, + (unsigned long)&__bl31_sram_stack_start, + sram_size, MT_MEMORY | MT_RW | MT_SECURE); + + sram_size = (char *)&__sram_incbin_end - (char *)&__sram_incbin_start; + mmap_add_region((unsigned long)&__sram_incbin_start, + (unsigned long)&__sram_incbin_start, + sram_size, MT_NON_CACHEABLE | MT_RW | MT_SECURE); +} + +void plat_rockchip_pmu_init(void) +{ + uint32_t cpu; + + rockchip_pd_lock_init(); + + /* register requires 32bits mode, switch it to 32 bits */ + cpu_warm_boot_addr = (uint64_t)platform_cpu_warmboot; + + for (cpu = 0; cpu < PLATFORM_CORE_COUNT; cpu++) + cpuson_flags[cpu] = 0; + + for (cpu = 0; cpu < PLATFORM_CLUSTER_COUNT; cpu++) + clst_warmboot_data[cpu] = 0; + + /* config cpu's warm boot address */ + mmio_write_32(SGRF_BASE + SGRF_SOC_CON(1), + (cpu_warm_boot_addr >> CPU_BOOT_ADDR_ALIGN) | + CPU_BOOT_ADDR_WMASK); + mmio_write_32(PMU_BASE + PMU_NOC_AUTO_ENA, NOC_AUTO_ENABLE); + + /* + * Enable Schmitt trigger for better 32 kHz input signal, which is + * important for suspend/resume reliability among other things. + */ + mmio_write_32(PMUGRF_BASE + PMUGRF_GPIO0A_SMT, GPIO0A0_SMT_ENABLE); + + init_pmu_counts(); + + nonboot_cpus_off(); + + INFO("%s(%d): pd status %x\n", __func__, __LINE__, + mmio_read_32(PMU_BASE + PMU_PWRDN_ST)); +} |