diff options
Diffstat (limited to 'src/soc/mediatek/mt8195/spm.c')
| -rw-r--r-- | src/soc/mediatek/mt8195/spm.c | 714 |
1 files changed, 714 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8195/spm.c b/src/soc/mediatek/mt8195/spm.c new file mode 100644 index 0000000000..018063ce73 --- /dev/null +++ b/src/soc/mediatek/mt8195/spm.c @@ -0,0 +1,714 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <assert.h> +#include <console/console.h> +#include <delay.h> +#include <device/mmio.h> +#include <soc/mcu_common.h> +#include <soc/spm.h> +#include <soc/spm_common.h> +#include <soc/symbols.h> +#include <string.h> +#include <timer.h> + +#define SPM_SYSTEM_BASE_OFFSET 0x40000000 + +static const struct pwr_ctrl spm_init_ctrl = { + .pcm_flags = SPM_FLAG_DISABLE_VCORE_DVS | SPM_FLAG_DISABLE_VCORE_DFS | + SPM_FLAG_RUN_COMMON_SCENARIO, + + /* SPM_AP_STANDBY_CON */ + /* [0] */ + .reg_wfi_op = 0, + /* [1] */ + .reg_wfi_type = 0, + /* [2] */ + .reg_mp0_cputop_idle_mask = 0, + /* [3] */ + .reg_mp1_cputop_idle_mask = 0, + /* [4] */ + .reg_mcusys_idle_mask = 0, + /* [25] */ + .reg_md_apsrc_1_sel = 0, + /* [26] */ + .reg_md_apsrc_0_sel = 0, + /* [29] */ + .reg_conn_apsrc_sel = 0, + + /* SPM_SRC_REQ */ + /* [0] */ + .reg_spm_apsrc_req = 0, + /* [1] */ + .reg_spm_f26m_req = 0, + /* [3] */ + .reg_spm_infra_req = 0, + /* [4] */ + .reg_spm_vrf18_req = 0, + /* [7] FIXME: default disable HW Auto S1*/ + .reg_spm_ddr_en_req = 1, + /* [8] */ + .reg_spm_dvfs_req = 0, + /* [9] */ + .reg_spm_sw_mailbox_req = 0, + /* [10] */ + .reg_spm_sspm_mailbox_req = 0, + /* [11] */ + .reg_spm_adsp_mailbox_req = 0, + /* [12] */ + .reg_spm_scp_mailbox_req = 0, + + /* SPM_SRC_MASK */ + /* [0] */ + .reg_sspm_srcclkena_0_mask_b = 1, + /* [1] */ + .reg_sspm_infra_req_0_mask_b = 1, + /* [2] */ + .reg_sspm_apsrc_req_0_mask_b = 1, + /* [3] */ + .reg_sspm_vrf18_req_0_mask_b = 1, + /* [4] */ + .reg_sspm_ddr_en_0_mask_b = 1, + /* [5] */ + .reg_scp_srcclkena_mask_b = 1, + /* [6] */ + .reg_scp_infra_req_mask_b = 1, + /* [7] */ + .reg_scp_apsrc_req_mask_b = 1, + /* [8] */ + .reg_scp_vrf18_req_mask_b = 1, + /* [9] */ + .reg_scp_ddr_en_mask_b = 1, + /* [10] */ + .reg_audio_dsp_srcclkena_mask_b = 1, + /* [11] */ + .reg_audio_dsp_infra_req_mask_b = 1, + /* [12] */ + .reg_audio_dsp_apsrc_req_mask_b = 1, + /* [13] */ + .reg_audio_dsp_vrf18_req_mask_b = 1, + /* [14] */ + .reg_audio_dsp_ddr_en_mask_b = 1, + /* [15] */ + .reg_apu_srcclkena_mask_b = 1, + /* [16] */ + .reg_apu_infra_req_mask_b = 1, + /* [17] */ + .reg_apu_apsrc_req_mask_b = 1, + /* [18] */ + .reg_apu_vrf18_req_mask_b = 1, + /* [19] */ + .reg_apu_ddr_en_mask_b = 1, + /* [20] */ + .reg_cpueb_srcclkena_mask_b = 1, + /* [21] */ + .reg_cpueb_infra_req_mask_b = 1, + /* [22] */ + .reg_cpueb_apsrc_req_mask_b = 1, + /* [23] */ + .reg_cpueb_vrf18_req_mask_b = 1, + /* [24] */ + .reg_cpueb_ddr_en_mask_b = 1, + /* [25] */ + .reg_bak_psri_srcclkena_mask_b = 0, + /* [26] */ + .reg_bak_psri_infra_req_mask_b = 0, + /* [27] */ + .reg_bak_psri_apsrc_req_mask_b = 0, + /* [28] */ + .reg_bak_psri_vrf18_req_mask_b = 0, + /* [29] */ + .reg_bak_psri_ddr_en_mask_b = 0, + + /* SPM_SRC2_MASK */ + /* [0] */ + .reg_msdc0_srcclkena_mask_b = 1, + /* [1] */ + .reg_msdc0_infra_req_mask_b = 1, + /* [2] */ + .reg_msdc0_apsrc_req_mask_b = 1, + /* [3] */ + .reg_msdc0_vrf18_req_mask_b = 1, + /* [4] */ + .reg_msdc0_ddr_en_mask_b = 1, + /* [5] */ + .reg_msdc1_srcclkena_mask_b = 1, + /* [6] */ + .reg_msdc1_infra_req_mask_b = 1, + /* [7] */ + .reg_msdc1_apsrc_req_mask_b = 1, + /* [8] */ + .reg_msdc1_vrf18_req_mask_b = 1, + /* [9] */ + .reg_msdc1_ddr_en_mask_b = 1, + /* [10] */ + .reg_msdc2_srcclkena_mask_b = 1, + /* [11] */ + .reg_msdc2_infra_req_mask_b = 1, + /* [12] */ + .reg_msdc2_apsrc_req_mask_b = 1, + /* [13] */ + .reg_msdc2_vrf18_req_mask_b = 1, + /* [14] */ + .reg_msdc2_ddr_en_mask_b = 1, + /* [15] */ + .reg_ufs_srcclkena_mask_b = 1, + /* [16] */ + .reg_ufs_infra_req_mask_b = 1, + /* [17] */ + .reg_ufs_apsrc_req_mask_b = 1, + /* [18] */ + .reg_ufs_vrf18_req_mask_b = 1, + /* [19] */ + .reg_ufs_ddr_en_mask_b = 1, + /* [20] */ + .reg_usb_srcclkena_mask_b = 1, + /* [21] */ + .reg_usb_infra_req_mask_b = 1, + /* [22] */ + .reg_usb_apsrc_req_mask_b = 1, + /* [23] */ + .reg_usb_vrf18_req_mask_b = 1, + /* [24] */ + .reg_usb_ddr_en_mask_b = 1, + /* [25] */ + .reg_pextp_p0_srcclkena_mask_b = 1, + /* [26] */ + .reg_pextp_p0_infra_req_mask_b = 1, + /* [27] */ + .reg_pextp_p0_apsrc_req_mask_b = 1, + /* [28] */ + .reg_pextp_p0_vrf18_req_mask_b = 1, + /* [29] */ + .reg_pextp_p0_ddr_en_mask_b = 1, + + /* SPM_SRC3_MASK */ + /* [0] */ + .reg_pextp_p1_srcclkena_mask_b = 1, + /* [1] */ + .reg_pextp_p1_infra_req_mask_b = 1, + /* [2] */ + .reg_pextp_p1_apsrc_req_mask_b = 1, + /* [3] */ + .reg_pextp_p1_vrf18_req_mask_b = 1, + /* [4] */ + .reg_pextp_p1_ddr_en_mask_b = 1, + /* [5] */ + .reg_gce0_infra_req_mask_b = 1, + /* [6] */ + .reg_gce0_apsrc_req_mask_b = 1, + /* [7] */ + .reg_gce0_vrf18_req_mask_b = 1, + /* [8] */ + .reg_gce0_ddr_en_mask_b = 1, + /* [9] */ + .reg_gce1_infra_req_mask_b = 1, + /* [10] */ + .reg_gce1_apsrc_req_mask_b = 1, + /* [11] */ + .reg_gce1_vrf18_req_mask_b = 1, + /* [12] */ + .reg_gce1_ddr_en_mask_b = 1, + /* [13] */ + .reg_spm_srcclkena_reserved_mask_b = 1, + /* [14] */ + .reg_spm_infra_req_reserved_mask_b = 1, + /* [15] */ + .reg_spm_apsrc_req_reserved_mask_b = 1, + /* [16] */ + .reg_spm_vrf18_req_reserved_mask_b = 1, + /* [17] */ + .reg_spm_ddr_en_reserved_mask_b = 1, + /* [18] */ + .reg_disp0_apsrc_req_mask_b = 1, + /* [19] */ + .reg_disp0_ddr_en_mask_b = 1, + /* [20] */ + .reg_disp1_apsrc_req_mask_b = 1, + /* [21] */ + .reg_disp1_ddr_en_mask_b = 1, + /* [22] */ + .reg_disp2_apsrc_req_mask_b = 1, + /* [23] */ + .reg_disp2_ddr_en_mask_b = 1, + /* [24] */ + .reg_disp3_apsrc_req_mask_b = 1, + /* [25] */ + .reg_disp3_ddr_en_mask_b = 1, + /* [26] */ + .reg_infrasys_apsrc_req_mask_b = 0, + /* [27] */ + .reg_infrasys_ddr_en_mask_b = 1, + + /* [28] */ + .reg_cg_check_srcclkena_mask_b = 1, + /* [29] */ + .reg_cg_check_apsrc_req_mask_b = 1, + /* [30] */ + .reg_cg_check_vrf18_req_mask_b = 1, + /* [31] */ + .reg_cg_check_ddr_en_mask_b = 1, + + /* SPM_SRC4_MASK */ + /* [8:0] */ + .reg_mcusys_merge_apsrc_req_mask_b = 0x17, + /* [17:9] */ + .reg_mcusys_merge_ddr_en_mask_b = 0x17, + /* [19:18] */ + .reg_dramc_md32_infra_req_mask_b = 0, + /* [21:20] */ + .reg_dramc_md32_vrf18_req_mask_b = 0, + /* [23:22] */ + .reg_dramc_md32_ddr_en_mask_b = 0, + /* [24] */ + .reg_dvfsrc_event_trigger_mask_b = 1, + + /* SPM_WAKEUP_EVENT_MASK2 */ + /* [3:0] */ + .reg_sc_sw2spm_wakeup_mask_b = 0, + /* [4] */ + .reg_sc_adsp2spm_wakeup_mask_b = 0, + /* [8:5] */ + .reg_sc_sspm2spm_wakeup_mask_b = 0, + /* [9] */ + .reg_sc_scp2spm_wakeup_mask_b = 0, + /* [10] */ + .reg_csyspwrup_ack_mask = 0, + /* [11] */ + .reg_csyspwrup_req_mask = 1, + + /* SPM_WAKEUP_EVENT_MASK */ + /* [31:0] */ + .reg_wakeup_event_mask = 0xC1382213, + + /* SPM_WAKEUP_EVENT_EXT_MASK */ + /* [31:0] */ + .reg_ext_wakeup_event_mask = 0xFFFFFFFF, +}; + +static void spm_set_power_control(const struct pwr_ctrl *pwrctrl) +{ + /* Auto-gen Start */ + + /* SPM_AP_STANDBY_CON */ + write32(&mtk_spm->spm_ap_standby_con, + ((pwrctrl->reg_wfi_op & 0x1) << 0) | + ((pwrctrl->reg_wfi_type & 0x1) << 1) | + ((pwrctrl->reg_mp0_cputop_idle_mask & 0x1) << 2) | + ((pwrctrl->reg_mp1_cputop_idle_mask & 0x1) << 3) | + ((pwrctrl->reg_mcusys_idle_mask & 0x1) << 4) | + ((pwrctrl->reg_md_apsrc_1_sel & 0x1) << 25) | + ((pwrctrl->reg_md_apsrc_0_sel & 0x1) << 26) | + ((pwrctrl->reg_conn_apsrc_sel & 0x1) << 29)); + + /* SPM_SRC_REQ */ + write32(&mtk_spm->spm_src_req, + ((pwrctrl->reg_spm_apsrc_req & 0x1) << 0) | + ((pwrctrl->reg_spm_f26m_req & 0x1) << 1) | + ((pwrctrl->reg_spm_infra_req & 0x1) << 3) | + ((pwrctrl->reg_spm_vrf18_req & 0x1) << 4) | + ((pwrctrl->reg_spm_ddr_en_req & 0x1) << 7) | + ((pwrctrl->reg_spm_dvfs_req & 0x1) << 8) | + ((pwrctrl->reg_spm_sw_mailbox_req & 0x1) << 9) | + ((pwrctrl->reg_spm_sspm_mailbox_req & 0x1) << 10) | + ((pwrctrl->reg_spm_adsp_mailbox_req & 0x1) << 11) | + ((pwrctrl->reg_spm_scp_mailbox_req & 0x1) << 12)); + + /* SPM_SRC_MASK */ + write32(&mtk_spm->spm_src_mask, + ((pwrctrl->reg_sspm_srcclkena_0_mask_b & 0x1) << 0) | + ((pwrctrl->reg_sspm_infra_req_0_mask_b & 0x1) << 1) | + ((pwrctrl->reg_sspm_apsrc_req_0_mask_b & 0x1) << 2) | + ((pwrctrl->reg_sspm_vrf18_req_0_mask_b & 0x1) << 3) | + ((pwrctrl->reg_sspm_ddr_en_0_mask_b & 0x1) << 4) | + ((pwrctrl->reg_scp_srcclkena_mask_b & 0x1) << 5) | + ((pwrctrl->reg_scp_infra_req_mask_b & 0x1) << 6) | + ((pwrctrl->reg_scp_apsrc_req_mask_b & 0x1) << 7) | + ((pwrctrl->reg_scp_vrf18_req_mask_b & 0x1) << 8) | + ((pwrctrl->reg_scp_ddr_en_mask_b & 0x1) << 9) | + ((pwrctrl->reg_audio_dsp_srcclkena_mask_b & 0x1) << 10) | + ((pwrctrl->reg_audio_dsp_infra_req_mask_b & 0x1) << 11) | + ((pwrctrl->reg_audio_dsp_apsrc_req_mask_b & 0x1) << 12) | + ((pwrctrl->reg_audio_dsp_vrf18_req_mask_b & 0x1) << 13) | + ((pwrctrl->reg_audio_dsp_ddr_en_mask_b & 0x1) << 14) | + ((pwrctrl->reg_apu_srcclkena_mask_b & 0x1) << 15) | + ((pwrctrl->reg_apu_infra_req_mask_b & 0x1) << 16) | + ((pwrctrl->reg_apu_apsrc_req_mask_b & 0x1) << 17) | + ((pwrctrl->reg_apu_vrf18_req_mask_b & 0x1) << 18) | + ((pwrctrl->reg_apu_ddr_en_mask_b & 0x1) << 19) | + ((pwrctrl->reg_cpueb_srcclkena_mask_b & 0x1) << 20) | + ((pwrctrl->reg_cpueb_infra_req_mask_b & 0x1) << 21) | + ((pwrctrl->reg_cpueb_apsrc_req_mask_b & 0x1) << 22) | + ((pwrctrl->reg_cpueb_vrf18_req_mask_b & 0x1) << 23) | + ((pwrctrl->reg_cpueb_ddr_en_mask_b & 0x1) << 24) | + ((pwrctrl->reg_bak_psri_srcclkena_mask_b & 0x1) << 25) | + ((pwrctrl->reg_bak_psri_infra_req_mask_b & 0x1) << 26) | + ((pwrctrl->reg_bak_psri_apsrc_req_mask_b & 0x1) << 27) | + ((pwrctrl->reg_bak_psri_vrf18_req_mask_b & 0x1) << 28) | + ((pwrctrl->reg_bak_psri_ddr_en_mask_b & 0x1) << 29)); + + /* SPM_SRC2_MASK */ + write32(&mtk_spm->spm_src2_mask, + ((pwrctrl->reg_msdc0_srcclkena_mask_b & 0x1) << 0) | + ((pwrctrl->reg_msdc0_infra_req_mask_b & 0x1) << 1) | + ((pwrctrl->reg_msdc0_apsrc_req_mask_b & 0x1) << 2) | + ((pwrctrl->reg_msdc0_vrf18_req_mask_b & 0x1) << 3) | + ((pwrctrl->reg_msdc0_ddr_en_mask_b & 0x1) << 4) | + ((pwrctrl->reg_msdc1_srcclkena_mask_b & 0x1) << 5) | + ((pwrctrl->reg_msdc1_infra_req_mask_b & 0x1) << 6) | + ((pwrctrl->reg_msdc1_apsrc_req_mask_b & 0x1) << 7) | + ((pwrctrl->reg_msdc1_vrf18_req_mask_b & 0x1) << 8) | + ((pwrctrl->reg_msdc1_ddr_en_mask_b & 0x1) << 9) | + ((pwrctrl->reg_msdc2_srcclkena_mask_b & 0x1) << 10) | + ((pwrctrl->reg_msdc2_infra_req_mask_b & 0x1) << 11) | + ((pwrctrl->reg_msdc2_apsrc_req_mask_b & 0x1) << 12) | + ((pwrctrl->reg_msdc2_vrf18_req_mask_b & 0x1) << 13) | + ((pwrctrl->reg_msdc2_ddr_en_mask_b & 0x1) << 14) | + ((pwrctrl->reg_ufs_srcclkena_mask_b & 0x1) << 15) | + ((pwrctrl->reg_ufs_infra_req_mask_b & 0x1) << 16) | + ((pwrctrl->reg_ufs_apsrc_req_mask_b & 0x1) << 17) | + ((pwrctrl->reg_ufs_vrf18_req_mask_b & 0x1) << 18) | + ((pwrctrl->reg_ufs_ddr_en_mask_b & 0x1) << 19) | + ((pwrctrl->reg_usb_srcclkena_mask_b & 0x1) << 20) | + ((pwrctrl->reg_usb_infra_req_mask_b & 0x1) << 21) | + ((pwrctrl->reg_usb_apsrc_req_mask_b & 0x1) << 22) | + ((pwrctrl->reg_usb_vrf18_req_mask_b & 0x1) << 23) | + ((pwrctrl->reg_usb_ddr_en_mask_b & 0x1) << 24) | + ((pwrctrl->reg_pextp_p0_srcclkena_mask_b & 0x1) << 25) | + ((pwrctrl->reg_pextp_p0_infra_req_mask_b & 0x1) << 26) | + ((pwrctrl->reg_pextp_p0_apsrc_req_mask_b & 0x1) << 27) | + ((pwrctrl->reg_pextp_p0_vrf18_req_mask_b & 0x1) << 28) | + ((pwrctrl->reg_pextp_p0_ddr_en_mask_b & 0x1) << 29)); + + /* SPM_SRC3_MASK */ + write32(&mtk_spm->spm_src3_mask, + ((pwrctrl->reg_pextp_p1_srcclkena_mask_b & 0x1) << 0) | + ((pwrctrl->reg_pextp_p1_infra_req_mask_b & 0x1) << 1) | + ((pwrctrl->reg_pextp_p1_apsrc_req_mask_b & 0x1) << 2) | + ((pwrctrl->reg_pextp_p1_vrf18_req_mask_b & 0x1) << 3) | + ((pwrctrl->reg_pextp_p1_ddr_en_mask_b & 0x1) << 4) | + ((pwrctrl->reg_gce0_infra_req_mask_b & 0x1) << 5) | + ((pwrctrl->reg_gce0_apsrc_req_mask_b & 0x1) << 6) | + ((pwrctrl->reg_gce0_vrf18_req_mask_b & 0x1) << 7) | + ((pwrctrl->reg_gce0_ddr_en_mask_b & 0x1) << 8) | + ((pwrctrl->reg_gce1_infra_req_mask_b & 0x1) << 9) | + ((pwrctrl->reg_gce1_apsrc_req_mask_b & 0x1) << 10) | + ((pwrctrl->reg_gce1_vrf18_req_mask_b & 0x1) << 11) | + ((pwrctrl->reg_gce1_ddr_en_mask_b & 0x1) << 12) | + ((pwrctrl->reg_spm_srcclkena_reserved_mask_b & 0x1) << 13) | + ((pwrctrl->reg_spm_infra_req_reserved_mask_b & 0x1) << 14) | + ((pwrctrl->reg_spm_apsrc_req_reserved_mask_b & 0x1) << 15) | + ((pwrctrl->reg_spm_vrf18_req_reserved_mask_b & 0x1) << 16) | + ((pwrctrl->reg_spm_ddr_en_reserved_mask_b & 0x1) << 17) | + ((pwrctrl->reg_disp0_ddr_en_mask_b & 0x1) << 18) | + ((pwrctrl->reg_disp0_ddr_en_mask_b & 0x1) << 19) | + ((pwrctrl->reg_disp1_apsrc_req_mask_b & 0x1) << 20) | + ((pwrctrl->reg_disp1_ddr_en_mask_b & 0x1) << 21) | + ((pwrctrl->reg_disp2_apsrc_req_mask_b & 0x1) << 22) | + ((pwrctrl->reg_disp2_ddr_en_mask_b & 0x1) << 23) | + ((pwrctrl->reg_disp3_apsrc_req_mask_b & 0x1) << 24) | + ((pwrctrl->reg_disp3_ddr_en_mask_b & 0x1) << 25) | + ((pwrctrl->reg_infrasys_apsrc_req_mask_b & 0x1) << 26) | + ((pwrctrl->reg_infrasys_ddr_en_mask_b & 0x1) << 27)); + + /* SPM_SRC4_MASK */ + write32(&mtk_spm->spm_src4_mask, 0x1fc0000); + + /* SPM_WAKEUP_EVENT_MASK */ + write32(&mtk_spm->spm_wakeup_event_mask, + ((pwrctrl->reg_wakeup_event_mask & 0xffffffff) << 0)); + + /* SPM_WAKEUP_EVENT_EXT_MASK */ + write32(&mtk_spm->spm_wakeup_event_ext_mask, + ((pwrctrl->reg_ext_wakeup_event_mask & 0xffffffff) << 0)); + + /* Auto-gen End */ +} + +static void spm_register_init(void) +{ + /* Enable register control */ + write32(&mtk_spm->poweron_config_set, + SPM_REGWR_CFG_KEY | BCLK_CG_EN_LSB); + + /* Init power control register */ + write32(&mtk_spm->spm_power_on_val1, POWER_ON_VAL1_DEF); + write32(&mtk_spm->pcm_pwr_io_en, 0); + + /* Reset PCM */ + write32(&mtk_spm->pcm_con0, + SPM_REGWR_CFG_KEY | PCM_CK_EN_LSB | PCM_SW_RESET_LSB); + write32(&mtk_spm->pcm_con0, SPM_REGWR_CFG_KEY | PCM_CK_EN_LSB); + write32(&mtk_spm->pcm_con1, + SPM_REGWR_CFG_KEY | REG_EVENT_LOCK_EN_LSB | + REG_SPM_SRAM_ISOINT_B_LSB | RG_AHBMIF_APBEN_LSB | + REG_MD32_APB_INTERNAL_EN_LSB); + + /* Initial SPM CLK control register */ + SET32_BITFIELDS(&mtk_spm->spm_clk_con, + REG_SYSCLK1_SRC_MD2_SRCCLKENA, 1); + + /* Clean wakeup event raw status */ + write32(&mtk_spm->spm_wakeup_event_mask, SPM_WAKEUP_EVENT_MASK_DEF); + + /* Clean ISR status */ + write32(&mtk_spm->spm_irq_mask, ISRM_ALL); + write32(&mtk_spm->spm_irq_sta, ISRC_ALL); + write32(&mtk_spm->spm_swint_clr, PCM_SW_INT_ALL); + + /* Init r7 with POWER_ON_VAL1 */ + write32(&mtk_spm->pcm_reg_data_ini, + read32(&mtk_spm->spm_power_on_val1)); + write32(&mtk_spm->pcm_pwr_io_en, PCM_RF_SYNC_R7); + write32(&mtk_spm->pcm_pwr_io_en, 0); + + /* Configure ARMPLL Control Mode for MCDI */ + write32(&mtk_spm->armpll_clk_sel, ARMPLL_CLK_SEL_DEF); + + /* Init for SPM Resource ACK */ + write32(&mtk_spm->spm_resource_ack_con0, SPM_RESOURCE_ACK_CON0_DEF); + write32(&mtk_spm->spm_resource_ack_con1, SPM_RESOURCE_ACK_CON1_DEF); + write32(&mtk_spm->spm_resource_ack_con2, SPM_RESOURCE_ACK_CON2_DEF); + write32(&mtk_spm->spm_resource_ack_con3, SPM_RESOURCE_ACK_CON3_DEF); + + /* Init VCORE DVFS Status */ + SET32_BITFIELDS(&mtk_spm->spm_dvfs_misc, + SPM_DVFS_FORCE_ENABLE_LSB, 0, + SPM_DVFSRC_ENABLE_LSB, 1); + write32(&mtk_spm->spm_dvfs_level, SPM_DVFS_LEVEL_DEF); + write32(&mtk_spm->spm_dvs_dfs_level, SPM_DVS_DFS_LEVEL_DEF); + +} + +static void spm_set_sysclk_settle(void) +{ + write32(&mtk_spm->spm_clk_settle, SPM_SYSCLK_SETTLE); +} + +static void spm_code_swapping(void) +{ + u32 mask; + + mask = read32(&mtk_spm->spm_wakeup_event_mask); + write32(&mtk_spm->spm_wakeup_event_mask, + mask & ~SPM_WAKEUP_EVENT_MASK_BIT0); + write32(&mtk_spm->spm_cpu_wakeup_event, 1); + write32(&mtk_spm->spm_cpu_wakeup_event, 0); + write32(&mtk_spm->spm_wakeup_event_mask, mask); +} + +static void spm_reset_and_init_pcm(void) +{ + bool first_load_fw = true; + + /* Check the SPM FW is run or not */ + if (read32(&mtk_spm->md32pcm_cfgreg_sw_rstn) & + MD32PCM_CFGREG_SW_RSTN_RUN) + first_load_fw = false; + + if (!first_load_fw) { + spm_code_swapping(); + /* Backup PCM r0 -> SPM_POWER_ON_VAL0 before reset PCM */ + write32(&mtk_spm->spm_power_on_val0, + read32(&mtk_spm->pcm_reg0_data)); + } + + /* Disable r0 and r7 to control power */ + write32(&mtk_spm->pcm_pwr_io_en, 0); + + /* Disable pcm timer after leaving FW */ + clrsetbits32(&mtk_spm->pcm_con1, + RG_PCM_TIMER_EN_LSB, SPM_REGWR_CFG_KEY); + + /* Reset PCM */ + write32(&mtk_spm->pcm_con0, + SPM_REGWR_CFG_KEY | PCM_CK_EN_LSB | PCM_SW_RESET_LSB); + write32(&mtk_spm->pcm_con0, SPM_REGWR_CFG_KEY | PCM_CK_EN_LSB); + + /* Init PCM_CON1 (disable PCM timer but keep PCM WDT setting) */ + clrsetbits32(&mtk_spm->pcm_con1, ~RG_PCM_WDT_WAKE_LSB, + SPM_REGWR_CFG_KEY | REG_EVENT_LOCK_EN_LSB | + REG_SPM_SRAM_ISOINT_B_LSB | RG_AHBMIF_APBEN_LSB | + REG_MD32_APB_INTERNAL_EN_LSB); +} + +static void spm_kick_im_to_fetch(const struct dyna_load_pcm *pcm) +{ + uintptr_t ptr; + u32 dmem_words; + u32 pmem_words; + u32 total_words; + u32 pmem_start; + u32 dmem_start; + + ptr = (uintptr_t)pcm->buf + SPM_SYSTEM_BASE_OFFSET; + pmem_words = pcm->desc.pmem_words; + total_words = pcm->desc.total_words; + dmem_words = total_words - pmem_words; + pmem_start = pcm->desc.pmem_start; + dmem_start = pcm->desc.dmem_start; + + printk(BIOS_DEBUG, "%s: ptr = %#lx, pmem/dmem words = %#x/%#x\n", + __func__, (long)ptr, pmem_words, dmem_words); + + /* DMA needs 16-byte aligned source data. */ + assert(ptr % 16 == 0); + + write32(&mtk_spm->md32pcm_dma0_src, ptr); + write32(&mtk_spm->md32pcm_dma0_dst, pmem_start); + write32(&mtk_spm->md32pcm_dma0_wppt, pmem_words); + write32(&mtk_spm->md32pcm_dma0_wpto, dmem_start); + write32(&mtk_spm->md32pcm_dma0_count, total_words); + write32(&mtk_spm->md32pcm_dma0_con, MD32PCM_DMA0_CON_VAL); + write32(&mtk_spm->md32pcm_dma0_start, MD32PCM_DMA0_START_VAL); + + setbits32(&mtk_spm->pcm_con0, SPM_REGWR_CFG_KEY | PCM_CK_EN_LSB); +} + +static void spm_init_pcm_register(void) +{ + /* Init r0 with POWER_ON_VAL0 */ + write32(&mtk_spm->pcm_reg_data_ini, + read32(&mtk_spm->spm_power_on_val0)); + write32(&mtk_spm->pcm_pwr_io_en, PCM_RF_SYNC_R0); + write32(&mtk_spm->pcm_pwr_io_en, 0); + + /* Init r7 with POWER_ON_VAL1 */ + write32(&mtk_spm->pcm_reg_data_ini, + read32(&mtk_spm->spm_power_on_val1)); + write32(&mtk_spm->pcm_pwr_io_en, PCM_RF_SYNC_R7); + write32(&mtk_spm->pcm_pwr_io_en, 0); +} + +static void spm_set_wakeup_event(const struct pwr_ctrl *pwrctrl) +{ + u32 val, mask; + + /* Toggle event counter clear */ + setbits32(&mtk_spm->pcm_con1, + SPM_REGWR_CFG_KEY | SPM_EVENT_COUNTER_CLR_LSB); + + /* Toggle for reset SYS TIMER start point */ + SET32_BITFIELDS(&mtk_spm->sys_timer_con, + SYS_TIMER_START_EN_LSB, 1); + + if (pwrctrl->timer_val_cust == 0) + val = pwrctrl->timer_val ? pwrctrl->timer_val : PCM_TIMER_MAX; + else + val = pwrctrl->timer_val_cust; + + write32(&mtk_spm->pcm_timer_val, val); + + /* Disable pcm timer */ + clrsetbits32(&mtk_spm->pcm_con1, + RG_PCM_TIMER_EN_LSB, SPM_REGWR_CFG_KEY); + + /* Unmask AP wakeup source */ + if (pwrctrl->wake_src_cust == 0) + mask = pwrctrl->wake_src; + else + mask = pwrctrl->wake_src_cust; + + write32(&mtk_spm->spm_wakeup_event_mask, ~mask); + + /* Unmask SPM ISR */ + SET32_BITFIELDS(&mtk_spm->spm_irq_mask, + ISRM_TWAM_BF, 1, + ISRM_RET_IRQ_AUX_BF, 0x3ff); + + /* Toggle event counter clear */ + clrsetbits32(&mtk_spm->pcm_con1, + SPM_EVENT_COUNTER_CLR_LSB, SPM_REGWR_CFG_KEY); + + /* Toggle for reset SYS TIMER start point */ + SET32_BITFIELDS(&mtk_spm->sys_timer_con, + SYS_TIMER_START_EN_LSB, 0); +} + +static void spm_set_pcm_flags(const struct pwr_ctrl *pwrctrl) +{ + u32 pcm_flags = pwrctrl->pcm_flags, pcm_flags1 = pwrctrl->pcm_flags1; + + /* Set PCM flags and data */ + if (pwrctrl->pcm_flags_cust_clr != 0) + pcm_flags &= ~pwrctrl->pcm_flags_cust_clr; + if (pwrctrl->pcm_flags_cust_set != 0) + pcm_flags |= pwrctrl->pcm_flags_cust_set; + if (pwrctrl->pcm_flags1_cust_clr != 0) + pcm_flags1 &= ~pwrctrl->pcm_flags1_cust_clr; + if (pwrctrl->pcm_flags1_cust_set != 0) + pcm_flags1 |= pwrctrl->pcm_flags1_cust_set; + + write32(&mtk_spm->spm_sw_flag_0, pcm_flags); + write32(&mtk_spm->spm_sw_flag_1, pcm_flags1); + write32(&mtk_spm->spm_sw_rsv_7, pcm_flags); + write32(&mtk_spm->spm_sw_rsv_8, pcm_flags1); +} + +static void spm_kick_pcm_to_run(const struct pwr_ctrl *pwrctrl) +{ + /* Waiting for loading SPMFW done*/ + while (read32(&mtk_spm->md32pcm_dma0_rlct) != 0x0) + ; + + /* Init register to match PCM expectation */ + write32(&mtk_spm->spm_bus_protect_mask_b, SPM_BUS_PROTECT_MASK_B_DEF); + write32(&mtk_spm->spm_bus_protect2_mask_b, + SPM_BUS_PROTECT2_MASK_B_DEF); + write32(&mtk_spm->pcm_reg_data_ini, 0); + + spm_set_pcm_flags(pwrctrl); + + /* Kick PCM to run (only toggle PCM_KICK) */ + setbits32(&mtk_spm->pcm_con0, SPM_REGWR_CFG_KEY | PCM_CK_EN_LSB); + + /* Reset md32pcm */ + SET32_BITFIELDS(&mtk_spm->md32pcm_cfgreg_sw_rstn, + MD32PCM_CFGREG_SW_RSTN_RESET, 1); + + /* Waiting for SPM init done */ + udelay(SPM_INIT_DONE_US); +} + +static void reset_spm(struct mtk_mcu *mcu) +{ + struct dyna_load_pcm *pcm = (struct dyna_load_pcm *)mcu->priv; + + spm_parse_firmware(mcu); + spm_reset_and_init_pcm(); + spm_kick_im_to_fetch(pcm); + spm_init_pcm_register(); + spm_set_wakeup_event(&spm_init_ctrl); + spm_kick_pcm_to_run(&spm_init_ctrl); +} + +static struct mtk_mcu spm = { + .firmware_name = CONFIG_SPM_FIRMWARE, + .reset = reset_spm, +}; + +int spm_init(void) +{ + struct dyna_load_pcm pcm; + struct stopwatch sw; + + stopwatch_init(&sw); + + spm_register_init(); + spm_set_power_control(&spm_init_ctrl); + spm_set_sysclk_settle(); + + spm.load_buffer = _dram_dma; + spm.buffer_size = REGION_SIZE(dram_dma); + spm.priv = (void *)&pcm; + + if (mtk_init_mcu(&spm)) { + printk(BIOS_ERR, "SPM: %s: failed in mtk_init_mcu\n", __func__); + return -1; + } + + printk(BIOS_INFO, "SPM: %s done in %ld msecs, spm pc = %#x\n", + __func__, stopwatch_duration_msecs(&sw), + read32(&mtk_spm->md32pcm_pc)); + + return 0; +} |