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/*******************************************************************************
* DISCLAIMER
* This software is supplied by Renesas Electronics Corporation and is only
* intended for use with Renesas products. No other uses are authorized. This
* software is owned by Renesas Electronics Corporation and is protected under
* all applicable laws, including copyright laws.
* THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING
* THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT
* LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
* AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED.
* TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS
* ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE
* FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR
* ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE
* BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
* Renesas reserves the right, without notice, to make changes to this software
* and to discontinue the availability of this software. By using this software,
* you agree to the additional terms and conditions found by accessing the
* following link:
* http://www.renesas.com/disclaimer
* Copyright 2018-2025 Renesas Electronics Corporation All rights reserved.
*******************************************************************************/
/*******************************************************************************
* DESCRIPTION : Power management driver
******************************************************************************/
/******************************************************************************
* @file cpu_on.c
* - Version : 0.12
* @brief 1. Boot process of ARM CPU core.
* .
*****************************************************************************/
/******************************************************************************
* History : DD.MM.YYYY Version Description
* : 17.02.2022 0.01 First Release
* : 25.02.2022 0.02 Changed to boot Cortex-R on Core 0.
* : 23.03.2022 0.03 Removed unnecessary header file inclusions
* : 09.05.2022 0.04 Removed unnecessary processing
* Removed unnecessary cast
* : 31.10.2022 0.05 License notation change.
* : 21.08.2023 0.06 Add support for V4M.
* : 16.11.2023 0.07 Changed not to execute ASPREG setting
* in case of V4M.
* : 10.09.2024 0.08 Updated Region ID and RAM protection setting
* for QNX.
* : 11.10.2024 0.09 Updated Region ID and RAM protection setting
* for QNX for V4M.
* : 09.12.2024 0.10 Updated OTP_MEM_OTPMONITOR60 register to
* OTP_MEM_OTPMONITOR17 register for V4M.
* And Improve the adj_ca_variant_freq function.
* : 19.12.2024 0.11 Add support for booting CR52 core2.
* : 18.03.2025 0.12 Add INTC initialization process.
*****************************************************************************/
#include <stdint.h>
#include <mem_io.h>
#include <cpu_on.h>
#include <rst_register.h>
#if ((RCAR_LSI == RCAR_V4H) || (RCAR_LSI == RCAR_V4M))
#include "access_protection.h"
#endif /* ((RCAR_LSI == RCAR_V4H) || (RCAR_LSI == RCAR_V4M)) */
#include <log.h>
/* ARM */
#define CA_CORE0_WUP_REQ (0x00000001U)
#define CA_CORE0_VLD_RVBARP (0x00000001U)
#define CR_BTMD_RBAR (0x00000000U)
#define CR_VLD_BARP (0x00000001U << 0U)
#define CR_BAREN_VALID (0x00000001U << 4U)
#define CRRST (0x00000000U)
#define AP_CORE_APSREG_AP_CLUSTER_N_AUX0_ACTDIS1 (0x00000001U << 1U)
#define AP_CORE_APSREG_AP_CLUSTER_N_AUX0_ACTDIS0 (0x00000001U << 0U)
#define AP_CORE_APSREG_CCI500_AUX_ACTDIS (0x00000001U << 0U)
#define AP_CORE_APSREG_P_CCI500_AUX_ASPRTM (0x00000001U << 1U)
/* APMU */
#define APMU_BASE (BASE_APMU_ADDR)
#define CORTEX_R_CORE (0U) /* Target Cortex R52 cores (0 to 2) */
#define APMU_CRRSTCTRL(n) (APMU_BASE + ((n) * 0x40U) + 0x0304U) /* Cortex-R Reset Control Register */
#define APMU_CRBARP(n) (APMU_BASE + ((n) * 0x40U) + 0x033CU) /* Cortex-R Boot Address Register Protected */
#define APMU_PWRCTRLC0 (APMU_BASE + 0x0800U) /* Power Control Register for Core 0 */
#define APMU_RVBARPLC0 (APMU_BASE + 0x0838U) /* Reset Vector Base Address Register Protected Low for Core 0 */
#define APMU_RVBARPHC0 (APMU_BASE + 0x083CU) /* Reset Vector Base Address Register Protected High for Core 0 */
#define AP_CORE_BASE (BASE_AP_CORE_ADDR) /* 0xE6280000 */
#define AP_CORE_APSREG_AP_CLUSTER_N_AUX0(x) (AP_CORE_BASE + 0x00000010U + ((uint8_t)(x) * 0x1000U))
#define AP_CORE_APSREG_CCI500_AUX (AP_CORE_BASE + 0x00009010U)
#define AP_CORE_APSREG_P_CCI500_AUX (AP_CORE_BASE + 0x00029010U)
#define AP_CORE_APSREG_AP_CLUSTER_N_AUX0_INIT (AP_CORE_APSREG_AP_CLUSTER_N_AUX0_ACTDIS1 | AP_CORE_APSREG_AP_CLUSTER_N_AUX0_ACTDIS0)
#if (RCAR_LSI == RCAR_V4H)
#define V4H_5_NI_CA (0x53U) /* 1400[MHz] = 50/3[MHz] x (0x53 + 0x1) */
#define V4H_3_NI_CA (0x5FU) /* 1600[MHz] = 50/3[MHz] x (0x5F + 0x1) */
#elif (RCAR_LSI == RCAR_V4M)
#define V4M_5_NI_CA (0x5FU) /* 3200/4[MHz] = 50/3[MHz] x (0x5F + 0x1) */
#define V4M_3_NI_CA (0x6FU) /* 3732/4[MHz] = 50/3[MHz] x (0x6F + 0x1) */
#define V4M_2_NI_CA (0x6FU) /* 3732/4[MHz] = 50/3[MHz] x (0x6F + 0x1) */
#endif /* RCAR_LSI == RCAR_V4H */
#define CPG_PLL2CR0_KICK_BIT (0x80000000U)
#define CPG_PLLECR_PLL2ST_BIT (0x00000200U)
#if (RCAR_LSI == RCAR_V4M)
#define CPG_BASE (BASE_CPG_ADDR)
#define CPG_SRSTCLR5 (CPG_BASE + 0x2C94U)
#define CPG_SRSTCLR11 (CPG_BASE + 0x2CACU)
#define CPG_MSTPCR5 (CPG_BASE + 0x2D14U)
#define CPG_SRSTCLR5_VAL (0x80000000U)
#define CPG_SRSTCLR11_VAL (0x00080000U)
#define CPG_MSTPCR5_VAL (0x80000000U)
static void intc_init(void);
#endif /* RCAR_LSI == RCAR_V4M */
static void arm_cpu_set_address(uint32_t target, uint32_t boot_addr, int n)
{
if(RCAR_PWR_TARGET_CR == target)
{
/* CR Boot address set */
mem_write32(APMU_CRBARP(n), (uint32_t)(boot_addr | CR_VLD_BARP));
mem_write32(APMU_CRBARP(n), (uint32_t)(boot_addr | CR_VLD_BARP | CR_BAREN_VALID));
}
else
{
/* CA Boot address set */
mem_write32(APMU_RVBARPLC0, boot_addr | CA_CORE0_VLD_RVBARP);
#if ((RCAR_LSI == RCAR_V4H) || (RCAR_LSI == RCAR_V4M))
#if (ACC_PROT_ENABLE == PROTECTION_ENABLE)
mem_write32(APMU_RVBARPHC0, 0x00000020U); /* CA boot address 0x20_XXXXXXXX */
#elif (ACC_PROT_ENABLE == PROTECTION_DISABLE)
mem_write32(APMU_RVBARPHC0, 0x00000000U);
#endif
#else
mem_write32(APMU_RVBARPHC0, 0x00000000U);
#endif /* ((RCAR_LSI == RCAR_V4H) || (RCAR_LSI == RCAR_V4M)) */
}
}
/* End of function arm_cpu_set_address(uint32_t target, uint32_t boot_addr) */
void arm_cpu_on(uint32_t target, uint32_t boot_addr, int core_id)
{
uint32_t res_data;
if(RCAR_PWR_TARGET_CR == target)
{
if (core_id < 0)
core_id = CORTEX_R_CORE;
NOTICE("enable CR-52 core %d\n", core_id);
/* CR Boot address set. */
arm_cpu_set_address(target, boot_addr, core_id);
/* CR reset. */
mem_write32(APMU_CRRSTCTRL(core_id), CRRST);
}
else
{
#if (RCAR_LSI == RCAR_V4M)
/* For the initial setting flow of INTC, see Section 15.4.5 in
* "R-Car Series, V4M Series User's Manual".
*/
/* INTC initialize */
intc_init();
#endif /* RCAR_LSI == RCAR_V4M */
/* CA Boot address set. */
arm_cpu_set_address(target, boot_addr, 0);
#if (RCAR_LSI == RCAR_V4H)
/*
* In case of V4M, doesn't execute following process at Cx 2nd IPL.
* Because following register setting is needed to execute before C4 power on.
*/
/* AP-System core initialize */
res_data = mem_read32(AP_CORE_APSREG_AP_CLUSTER_N_AUX0(0U));
res_data |= AP_CORE_APSREG_AP_CLUSTER_N_AUX0_INIT;
mem_write32(AP_CORE_APSREG_AP_CLUSTER_N_AUX0(0U), res_data);
res_data = mem_read32(AP_CORE_APSREG_CCI500_AUX);
res_data |= AP_CORE_APSREG_CCI500_AUX_ACTDIS;
mem_write32(AP_CORE_APSREG_CCI500_AUX, res_data);
/* AP_CORE_APSREG_P_CCI500_AUX setting is only for V4H. */
res_data = mem_read32(AP_CORE_APSREG_P_CCI500_AUX);
res_data |= AP_CORE_APSREG_P_CCI500_AUX_ASPRTM;
mem_write32(AP_CORE_APSREG_P_CCI500_AUX, res_data);
#endif /* RCAR_LSI == RCAR_V4H */
/* CA core0 wake up sequence. */
mem_write32(APMU_PWRCTRLC0, CA_CORE0_WUP_REQ);
/* Wait until CA core0 wake up sequence finished. */
do
{
res_data = mem_read32(APMU_PWRCTRLC0);
}while(CA_CORE0_WUP_REQ & res_data);
}
}
/* End of function arm_cpu_on(uint32_t target, uint32_t boot_addr) */
void adj_ca_variant_freq(void)
{
uint32_t product = mem_read32(OTP_MEM_OTPMONITOR17) & OTP_MEM_PRODUCT_MASK;
uint32_t pll2_freq = mem_read32(CPG_PLL2CR0);
#if (RCAR_LSI == RCAR_V4H)
/* Set the CPU frequency division ratio according to the type of variant. */
switch (product)
{
case VARIANT_V4H_7:
/* Default value, do nothing */;
break;
case VARIANT_V4H_5:
pll2_freq = (pll2_freq & ~(0xFFU << 20U));
pll2_freq = (pll2_freq | (V4H_5_NI_CA << 20U));
break;
case VARIANT_V4H_3:
pll2_freq = (pll2_freq & ~(0xFFU << 20U));
pll2_freq = (pll2_freq | (V4H_3_NI_CA << 20U));
break;
default:
; /* Do nothing */
break;
}
if (VARIANT_V4H_5 == product || VARIANT_V4H_3 == product)
{
/* Write Division value to FRQCRC0 register */
mem_write32(CPG_CPGWPR, ~(pll2_freq));
mem_write32(CPG_PLL2CR0, pll2_freq);
mem_write32(CPG_CPGWPR, ~(mem_read32(CPG_PLL2CR0) | CPG_PLL2CR0_KICK_BIT));
mem_write32(CPG_PLL2CR0, (mem_read32(CPG_PLL2CR0) | CPG_PLL2CR0_KICK_BIT));
while ((mem_read32(CPG_PLLECR) & CPG_PLLECR_PLL2ST_BIT) != CPG_PLLECR_PLL2ST_BIT)
{
;
}
}
#elif (RCAR_LSI == RCAR_V4M)
/* Set the CPU frequency division ratio according to the type of variant. */
switch (product)
{
case VARIANT_V4M_7:
/* Default value, do nothing */;
break;
case VARIANT_V4M_5:
pll2_freq = (pll2_freq & ~(0xFFU << 20U));
pll2_freq = (pll2_freq | (V4M_5_NI_CA << 20U));
break;
case VARIANT_V4M_3:
pll2_freq = (pll2_freq & ~(0xFFU << 20U));
pll2_freq = (pll2_freq | (V4M_3_NI_CA << 20U));
break;
case VARIANT_V4M_2:
pll2_freq = (pll2_freq & ~(0xFFU << 20U));
pll2_freq = (pll2_freq | (V4M_2_NI_CA << 20U));
break;
default:
; /* Do nothing */
break;
}
if (VARIANT_V4M_5 == product || VARIANT_V4M_3 == product || VARIANT_V4M_2 == product)
{
/* Write Division value to FRQCRC0 register */
mem_write32(CPG_CPGWPR, ~(pll2_freq));
mem_write32(CPG_PLL2CR0, pll2_freq);
mem_write32(CPG_CPGWPR, ~(mem_read32(CPG_PLL2CR0) | CPG_PLL2CR0_KICK_BIT));
mem_write32(CPG_PLL2CR0, (mem_read32(CPG_PLL2CR0) | CPG_PLL2CR0_KICK_BIT));
while ((mem_read32(CPG_PLLECR) & CPG_PLLECR_PLL2ST_BIT) != CPG_PLLECR_PLL2ST_BIT)
{
;
}
}
#endif /* RCAR_LSI == RCAR_V4H */
}
/* End of function adj_cpu_variant_freq(void) */
#if (RCAR_LSI == RCAR_V4M)
static void intc_init(void)
{
uint32_t reg;
mem_write32(CPG_CPGWPR, ~(CPG_SRSTCLR5_VAL));
mem_write32(CPG_SRSTCLR5, CPG_SRSTCLR5_VAL);
mem_write32(CPG_CPGWPR, ~(CPG_SRSTCLR11_VAL));
mem_write32(CPG_SRSTCLR11, CPG_SRSTCLR11_VAL);
mem_write32(CPG_CPGWPR, ~(CPG_MSTPCR5_VAL));
reg = mem_read32(CPG_MSTPCR5);
reg |= CPG_MSTPCR5_VAL;
mem_write32(CPG_MSTPCR5, reg);
}
/* End of function intc_init(void) */
#endif /* RCAR_LSI == RCAR_V4M */