blob: ac62f2fa1f226f84e7ad3758f3ab2d3d372e3ad0 [file] [log] [blame]
/*
* Copyright (c) 2023, MediaTek Inc. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <inttypes.h>
/* TF-A system header */
#include <common/debug.h>
#include <drivers/delay_timer.h>
#include <lib/mmio.h>
#include <lib/spinlock.h>
#include <lib/utils_def.h>
#include <lib/xlat_tables/xlat_tables_v2.h>
/* Vendor header */
#include "apusys.h"
#include "apusys_power.h"
#include <mtk_mmap_pool.h>
static spinlock_t apu_lock;
static bool apusys_top_on;
static int apu_poll(uintptr_t reg, uint32_t mask, uint32_t value, uint32_t timeout_us)
{
uint32_t reg_val, count;
count = timeout_us / APU_POLL_STEP_US;
if (count == 0) {
count = 1;
}
do {
reg_val = mmio_read_32(reg);
if ((reg_val & mask) == value) {
return 0;
}
udelay(APU_POLL_STEP_US);
} while (--count);
ERROR(MODULE_TAG "Timeout polling APU register %#" PRIxPTR "\n", reg);
ERROR(MODULE_TAG "Read value 0x%x, expected 0x%x\n", reg_val,
(value == 0U) ? (reg_val & ~mask) : (reg_val | mask));
return -1;
}
static void apu_xpu2apusys_d4_slv_en(enum APU_D4_SLV_CTRL en)
{
switch (en) {
case D4_SLV_OFF:
mmio_setbits_32(BCRM_FMEM_PDN_BASE + INFRA_FMEM_BUS_u_SI21_CTRL_0,
INFRA_FMEM_BUS_u_SI21_CTRL_EN);
mmio_setbits_32(BCRM_FMEM_PDN_BASE + INFRA_FMEM_BUS_u_SI22_CTRL_0,
INFRA_FMEM_BUS_u_SI22_CTRL_EN);
mmio_setbits_32(BCRM_FMEM_PDN_BASE + INFRA_FMEM_BUS_u_SI11_CTRL_0,
INFRA_FMEM_BUS_u_SI11_CTRL_EN);
mmio_setbits_32(BCRM_FMEM_PDN_BASE + INFRA_FMEM_M6M7_BUS_u_SI24_CTRL_0,
INFRA_FMEM_M6M7_BUS_u_SI24_CTRL_EN);
break;
case D4_SLV_ON:
mmio_clrbits_32(BCRM_FMEM_PDN_BASE + INFRA_FMEM_BUS_u_SI21_CTRL_0,
INFRA_FMEM_BUS_u_SI21_CTRL_EN);
mmio_clrbits_32(BCRM_FMEM_PDN_BASE + INFRA_FMEM_BUS_u_SI22_CTRL_0,
INFRA_FMEM_BUS_u_SI22_CTRL_EN);
mmio_clrbits_32(BCRM_FMEM_PDN_BASE + INFRA_FMEM_BUS_u_SI11_CTRL_0,
INFRA_FMEM_BUS_u_SI11_CTRL_EN);
mmio_clrbits_32(BCRM_FMEM_PDN_BASE + INFRA_FMEM_M6M7_BUS_u_SI24_CTRL_0,
INFRA_FMEM_M6M7_BUS_u_SI24_CTRL_EN);
break;
default:
ERROR(MODULE_TAG "%s invalid op: %d\n", __func__, en);
break;
}
}
static void apu_pwr_flow_remote_sync(uint32_t cfg)
{
mmio_write_32(APU_MBOX0_BASE + PWR_FLOW_SYNC_REG, (cfg & 0x1));
}
int apusys_kernel_apusys_pwr_top_on(void)
{
int ret;
spin_lock(&apu_lock);
if (apusys_top_on == true) {
INFO(MODULE_TAG "%s: APUSYS already powered on!\n", __func__);
spin_unlock(&apu_lock);
return 0;
}
apu_pwr_flow_remote_sync(1);
mmio_setbits_32(APU_RPC_BASE + APU_RPC_TOP_SEL_1, AFC_ENA);
mmio_write_32(APU_RPC_BASE + APU_RPC_TOP_CON, REG_WAKEUP_SET);
ret = apu_poll(APU_RPC_BASE + APU_RPC_INTF_PWR_RDY,
PWR_RDY, PWR_RDY, APU_TOP_ON_POLLING_TIMEOUT_US);
if (ret != 0) {
ERROR(MODULE_TAG "%s polling RPC RDY timeout, ret %d\n", __func__, ret);
spin_unlock(&apu_lock);
return ret;
}
ret = apu_poll(APU_RPC_BASE + APU_RPC_STATUS,
RPC_STATUS_RDY, RPC_STATUS_RDY, APU_TOP_ON_POLLING_TIMEOUT_US);
if (ret != 0) {
ERROR(MODULE_TAG "%s polling ARE FSM timeout, ret %d\n", __func__, ret);
spin_unlock(&apu_lock);
return ret;
}
mmio_write_32(APU_VCORE_BASE + APUSYS_VCORE_CG_CLR, CG_CLR);
mmio_write_32(APU_RCX_BASE + APU_RCX_CG_CLR, CG_CLR);
apu_xpu2apusys_d4_slv_en(D4_SLV_OFF);
apusys_top_on = true;
spin_unlock(&apu_lock);
return ret;
}
static void apu_sleep_rpc_rcx(void)
{
mmio_write_32(APU_RPC_BASE + APU_RPC_TOP_CON, REG_WAKEUP_CLR);
udelay(10);
mmio_setbits_32(APU_RPC_BASE + APU_RPC_TOP_SEL, (RPC_CTRL | RSV10));
udelay(10);
mmio_setbits_32(APU_RPC_BASE + APU_RPC_TOP_CON, CLR_IRQ);
udelay(10);
mmio_setbits_32(APU_RPC_BASE + APU_RPC_TOP_CON, SLEEP_REQ);
udelay(100);
}
int apusys_kernel_apusys_pwr_top_off(void)
{
int ret;
spin_lock(&apu_lock);
if (apusys_top_on == false) {
INFO(MODULE_TAG "%s: APUSYS already powered off!\n", __func__);
spin_unlock(&apu_lock);
return 0;
}
apu_xpu2apusys_d4_slv_en(D4_SLV_ON);
if (mmio_read_32(APU_MBOX0_BASE + PWR_FLOW_SYNC_REG) == 0) {
apu_pwr_flow_remote_sync(1);
} else {
apu_sleep_rpc_rcx();
}
ret = apu_poll(APU_RPC_BASE + APU_RPC_INTF_PWR_RDY,
PWR_RDY, PWR_OFF, APU_TOP_OFF_POLLING_TIMEOUT_US);
if (ret != 0) {
ERROR(MODULE_TAG "%s timeout to wait RPC sleep (val:%d), ret %d\n",
__func__, APU_TOP_OFF_POLLING_TIMEOUT_US, ret);
spin_unlock(&apu_lock);
return ret;
}
apusys_top_on = false;
spin_unlock(&apu_lock);
return ret;
}
static void get_pll_pcw(const uint32_t clk_rate, uint32_t *r1, uint32_t *r2)
{
unsigned int fvco = clk_rate;
unsigned int pcw_val;
unsigned int postdiv_val = 1;
unsigned int postdiv_reg = 0;
while (fvco <= OUT_CLK_FREQ_MIN) {
postdiv_val = postdiv_val << 1;
postdiv_reg = postdiv_reg + 1;
fvco = fvco << 1;
}
pcw_val = (fvco * (1 << DDS_SHIFT)) / BASIC_CLK_FREQ;
if (postdiv_reg == 0) {
pcw_val = pcw_val * 2;
postdiv_val = postdiv_val << 1;
postdiv_reg = postdiv_reg + 1;
}
*r1 = postdiv_reg;
*r2 = pcw_val;
}
static void apu_pll_init(void)
{
const uint32_t pll_hfctl_cfg[PLL_NUM] = {
PLL4HPLL_FHCTL0_CFG,
PLL4HPLL_FHCTL1_CFG,
PLL4HPLL_FHCTL2_CFG,
PLL4HPLL_FHCTL3_CFG
};
const uint32_t pll_con1[PLL_NUM] = {
PLL4H_PLL1_CON1,
PLL4H_PLL2_CON1,
PLL4H_PLL3_CON1,
PLL4H_PLL4_CON1
};
const uint32_t pll_fhctl_dds[PLL_NUM] = {
PLL4HPLL_FHCTL0_DDS,
PLL4HPLL_FHCTL1_DDS,
PLL4HPLL_FHCTL2_DDS,
PLL4HPLL_FHCTL3_DDS
};
const uint32_t pll_freq_out[PLL_NUM] = {
APUPLL0_DEFAULT_FREQ,
APUPLL1_DEFAULT_FREQ,
APUPLL2_DEFAULT_FREQ,
APUPLL3_DEFAULT_FREQ
};
uint32_t pcw_val, posdiv_val;
int pll_idx;
mmio_setbits_32(APU_PLL_BASE + PLL4HPLL_FHCTL_RST_CON, PLL4H_PLL_HP_SWRSTB);
mmio_setbits_32(APU_PLL_BASE + PLL4HPLL_FHCTL_HP_EN, PLL4H_PLL_HP_EN);
mmio_setbits_32(APU_PLL_BASE + PLL4HPLL_FHCTL_CLK_CON, PLL4H_PLL_HP_CLKEN);
for (pll_idx = 0; pll_idx < PLL_NUM; pll_idx++) {
mmio_setbits_32(APU_PLL_BASE + pll_hfctl_cfg[pll_idx], (FHCTL0_EN | SFSTR0_EN));
posdiv_val = 0;
pcw_val = 0;
get_pll_pcw(pll_freq_out[pll_idx], &posdiv_val, &pcw_val);
mmio_clrsetbits_32(APU_PLL_BASE + pll_con1[pll_idx],
(RG_PLL_POSDIV_MASK << RG_PLL_POSDIV_SFT),
(posdiv_val << RG_PLL_POSDIV_SFT));
mmio_write_32(APU_PLL_BASE + pll_fhctl_dds[pll_idx],
(FHCTL_PLL_TGL_ORG | pcw_val));
}
}
static void apu_acc_init(void)
{
mmio_write_32(APU_ACC_BASE + APU_ACC_CONFG_CLR0, CGEN_SOC);
mmio_write_32(APU_ACC_BASE + APU_ACC_CONFG_SET0, HW_CTRL_EN);
mmio_write_32(APU_ACC_BASE + APU_ACC_CONFG_CLR1, CGEN_SOC);
mmio_write_32(APU_ACC_BASE + APU_ACC_CONFG_SET1, HW_CTRL_EN);
mmio_write_32(APU_ACC_BASE + APU_ACC_CONFG_CLR2, CGEN_SOC);
mmio_write_32(APU_ACC_BASE + APU_ACC_CONFG_SET2, HW_CTRL_EN);
mmio_write_32(APU_ACC_BASE + APU_ACC_AUTO_CTRL_SET2, CLK_REQ_SW_EN);
mmio_write_32(APU_ACC_BASE + APU_ACC_CONFG_CLR3, CGEN_SOC);
mmio_write_32(APU_ACC_BASE + APU_ACC_CONFG_SET3, HW_CTRL_EN);
mmio_write_32(APU_ACC_BASE + APU_ACC_AUTO_CTRL_SET3, CLK_REQ_SW_EN);
mmio_write_32(APU_ACC_BASE + APU_ACC_CLK_INV_EN_SET, CLK_INV_EN);
}
static void apu_buck_off_cfg(void)
{
mmio_write_32(APU_RPC_BASE + APU_RPC_HW_CON, BUCK_PROT_REQ_SET);
udelay(10);
mmio_write_32(APU_RPC_BASE + APU_RPC_HW_CON, BUCK_ELS_EN_SET);
udelay(10);
mmio_write_32(APU_RPC_BASE + APU_RPC_HW_CON, BUCK_AO_RST_B_CLR);
udelay(10);
}
static void apu_pcu_init(void)
{
uint32_t vapu_en_offset = BUCK_VAPU_PMIC_REG_EN_ADDR;
uint32_t vapu_sram_en_offset = BUCK_VAPU_SRAM_PMIC_REG_EN_ADDR;
mmio_write_32(APU_PCU_BASE + APU_PCU_CTRL_SET, AUTO_BUCK_EN);
mmio_write_32(APU_PCU_BASE + APU_PCU_BUCK_STEP_SEL, BUCK_ON_OFF_CMD_EN);
mmio_write_32(APU_PCU_BASE + APU_PCU_BUCK_ON_DAT0_L,
((vapu_sram_en_offset << BUCK_OFFSET_SFT) + BUCK_ON_CMD));
mmio_write_32(APU_PCU_BASE + APU_PCU_BUCK_ON_DAT0_H, CMD_OP);
mmio_write_32(APU_PCU_BASE + APU_PCU_BUCK_ON_DAT1_L,
((vapu_en_offset << BUCK_OFFSET_SFT) + BUCK_ON_CMD));
mmio_write_32(APU_PCU_BASE + APU_PCU_BUCK_ON_DAT1_H, CMD_OP);
mmio_write_32(APU_PCU_BASE + APU_PCU_BUCK_OFF_DAT0_L,
((vapu_en_offset << BUCK_OFFSET_SFT) + BUCK_OFF_CMD));
mmio_write_32(APU_PCU_BASE + APU_PCU_BUCK_OFF_DAT0_H, CMD_OP);
mmio_write_32(APU_PCU_BASE + APU_PCU_BUCK_OFF_DAT1_L,
((vapu_sram_en_offset << BUCK_OFFSET_SFT) + BUCK_OFF_CMD));
mmio_write_32(APU_PCU_BASE + APU_PCU_BUCK_OFF_DAT1_H, CMD_OP);
mmio_write_32(APU_PCU_BASE + APU_PCU_BUCK_ON_SLE0, APU_PCU_BUCK_ON_SETTLE_TIME);
mmio_write_32(APU_PCU_BASE + APU_PCU_BUCK_ON_SLE1, APU_PCU_BUCK_ON_SETTLE_TIME);
}
static void apu_rpclite_init(void)
{
const uint32_t sleep_type_offset[] = {
APU_RPC_SW_TYPE2,
APU_RPC_SW_TYPE3,
APU_RPC_SW_TYPE4,
APU_RPC_SW_TYPE5,
APU_RPC_SW_TYPE6,
APU_RPC_SW_TYPE7,
APU_RPC_SW_TYPE8,
APU_RPC_SW_TYPE9
};
int ofs_arr_size = ARRAY_SIZE(sleep_type_offset);
int ofs_idx;
for (ofs_idx = 0 ; ofs_idx < ofs_arr_size ; ofs_idx++) {
mmio_clrbits_32(APU_ACX0_RPC_LITE_BASE + sleep_type_offset[ofs_idx],
SW_TYPE);
}
mmio_setbits_32(APU_ACX0_RPC_LITE_BASE + APU_RPC_TOP_SEL, RPC_CTRL);
}
static void apu_rpc_init(void)
{
mmio_clrbits_32(APU_RPC_BASE + APU_RPC_SW_TYPE0, SW_TYPE);
mmio_setbits_32(APU_RPC_BASE + APU_RPC_TOP_SEL, RPC_TOP_CTRL);
mmio_setbits_32(APU_RPC_BASE + APU_RPC_TOP_SEL_1, RPC_TOP_CTRL1);
}
static int apu_are_init(void)
{
int ret;
int are_id = 0;
const uint32_t are_base[APU_ARE_NUM] = { APU_ARE0_BASE, APU_ARE1_BASE, APU_ARE2_BASE };
const uint32_t are_entry2_cfg_l[APU_ARE_NUM] = {
ARE0_ENTRY2_CFG_L,
ARE1_ENTRY2_CFG_L,
ARE2_ENTRY2_CFG_L
};
mmio_setbits_32(APU_AO_CTL_BASE + CSR_DUMMY_0_ADDR, VCORE_ARE_REQ);
ret = apu_poll(APU_ARE2_BASE + APU_ARE_GLO_FSM, ARE_GLO_FSM_IDLE, ARE_GLO_FSM_IDLE,
APU_ARE_POLLING_TIMEOUT_US);
if (ret != 0) {
ERROR(MODULE_TAG "[%s][%d] ARE init timeout\n",
__func__, __LINE__);
return ret;
}
for (are_id = APU_ARE0; are_id < APU_ARE_NUM; are_id++) {
mmio_write_32(are_base[are_id] + APU_ARE_ENTRY0_SRAM_H, ARE_ENTRY0_SRAM_H_INIT);
mmio_write_32(are_base[are_id] + APU_ARE_ENTRY0_SRAM_L, ARE_ENTRY0_SRAM_L_INIT);
mmio_write_32(are_base[are_id] + APU_ARE_ENTRY1_SRAM_H, ARE_ENTRY1_SRAM_H_INIT);
mmio_write_32(are_base[are_id] + APU_ARE_ENTRY1_SRAM_L, ARE_ENTRY1_SRAM_L_INIT);
mmio_write_32(are_base[are_id] + APU_ARE_ENTRY2_SRAM_H, ARE_ENTRY_CFG_H);
mmio_write_32(are_base[are_id] + APU_ARE_ENTRY2_SRAM_L, are_entry2_cfg_l[are_id]);
mmio_read_32(are_base[are_id] + APU_ARE_ENTRY2_SRAM_H);
mmio_read_32(are_base[are_id] + APU_ARE_ENTRY2_SRAM_L);
mmio_write_32(are_base[are_id] + APU_ARE_INI_CTRL, ARE_CONFG_INI);
}
return ret;
}
static void apu_aoc_init(void)
{
mmio_clrbits_32(SPM_BASE + APUSYS_BUCK_ISOLATION, IPU_EXT_BUCK_ISO);
mmio_write_32(APU_RPC_BASE + APU_RPC_HW_CON, BUCK_ELS_EN_CLR);
udelay(10);
mmio_write_32(APU_RPC_BASE + APU_RPC_HW_CON, BUCK_AO_RST_B_SET);
udelay(10);
mmio_write_32(APU_RPC_BASE + APU_RPC_HW_CON, BUCK_PROT_REQ_CLR);
udelay(10);
mmio_write_32(APU_RPC_BASE + APU_RPC_HW_CON, SRAM_AOC_ISO_CLR);
udelay(10);
}
static int init_hw_setting(void)
{
int ret;
apu_aoc_init();
apu_pcu_init();
apu_rpc_init();
apu_rpclite_init();
ret = apu_are_init();
if (ret != 0) {
return ret;
}
apu_pll_init();
apu_acc_init();
apu_buck_off_cfg();
return ret;
}
int apusys_power_init(void)
{
int ret;
ret = init_hw_setting();
if (ret != 0) {
ERROR(MODULE_TAG "%s initial fail\n", __func__);
} else {
INFO(MODULE_TAG "%s initial done\n", __func__);
}
return ret;
}