Clock Manager driver will be called to reconfigure all the clocks setting based on user input. The input are passed to Preloader through handoff files
Signed-off-by: Chin Liang See clsee@altera.com Cc: Albert Aribaud albert.u.boot@aribaud.net Cc: Tom Rini trini@ti.com Cc: Wolfgang Denk wd@denx.de CC: Pavel Machek pavel@denx.de Cc: Dinh Nguyen dinguyen@altera.com --- arch/arm/cpu/armv7/socfpga/Makefile | 2 +- arch/arm/cpu/armv7/socfpga/clock_manager.c | 378 ++++++++++++++++++++ arch/arm/cpu/armv7/socfpga/spl.c | 90 +++++ arch/arm/include/asm/arch-socfpga/clock_manager.h | 205 +++++++++++ .../include/asm/arch-socfpga/socfpga_base_addrs.h | 1 + include/configs/socfpga_cyclone5.h | 1 + 6 files changed, 676 insertions(+), 1 deletion(-) create mode 100644 arch/arm/cpu/armv7/socfpga/clock_manager.c create mode 100644 arch/arm/include/asm/arch-socfpga/clock_manager.h
diff --git a/arch/arm/cpu/armv7/socfpga/Makefile b/arch/arm/cpu/armv7/socfpga/Makefile index 4edc5d4..eb33f2c 100644 --- a/arch/arm/cpu/armv7/socfpga/Makefile +++ b/arch/arm/cpu/armv7/socfpga/Makefile @@ -8,5 +8,5 @@ #
obj-y := lowlevel_init.o -obj-y += misc.o timer.o reset_manager.o system_manager.o +obj-y += misc.o timer.o reset_manager.o system_manager.o clock_manager.o obj-$(CONFIG_SPL_BUILD) += spl.o freeze_controller.o scan_manager.o diff --git a/arch/arm/cpu/armv7/socfpga/clock_manager.c b/arch/arm/cpu/armv7/socfpga/clock_manager.c new file mode 100644 index 0000000..7caa76f --- /dev/null +++ b/arch/arm/cpu/armv7/socfpga/clock_manager.c @@ -0,0 +1,378 @@ +/* + * Copyright (C) 2013 Altera Corporation <www.altera.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/clock_manager.h> + +static const struct socfpga_clock_manager *clock_manager_base = + (void *)SOCFPGA_CLKMGR_ADDRESS; + +#define CLKMGR_BYPASS_ENUM_ENABLE 1 +#define CLKMGR_BYPASS_ENUM_DISABLE 0 +#define CLKMGR_STAT_BUSY_ENUM_IDLE 0x0 +#define CLKMGR_STAT_BUSY_ENUM_BUSY 0x1 +#define CLKMGR_BYPASS_PERPLLSRC_ENUM_SELECT_EOSC1 0x0 +#define CLKMGR_BYPASS_PERPLLSRC_ENUM_SELECT_INPUT_MUX 0x1 +#define CLKMGR_BYPASS_SDRPLLSRC_ENUM_SELECT_EOSC1 0x0 +#define CLKMGR_BYPASS_SDRPLLSRC_ENUM_SELECT_INPUT_MUX 0x1 + +#define CLEAR_BGP_EN_PWRDN \ + (CLKMGR_MAINPLLGRP_VCO_PWRDN_SET(0)| \ + CLKMGR_MAINPLLGRP_VCO_EN_SET(0)| \ + CLKMGR_MAINPLLGRP_VCO_BGPWRDN_SET(0)) + +#define VCO_EN_BASE \ + (CLKMGR_MAINPLLGRP_VCO_PWRDN_SET(0)| \ + CLKMGR_MAINPLLGRP_VCO_EN_SET(1)| \ + CLKMGR_MAINPLLGRP_VCO_BGPWRDN_SET(0)) + +static inline void cm_wait_for_lock(uint32_t mask) +{ + register uint32_t inter_val; + do { + inter_val = readl(&clock_manager_base->inter) & mask; + } while (inter_val != mask); +} + +/* function to poll in the fsm busy bit */ +static inline void cm_wait4fsm(void) +{ + register uint32_t inter_val; + do { + inter_val = readl(&clock_manager_base->stat) & CLKMGR_STAT_BUSY_ENUM_BUSY; + } while (inter_val); +} + +/* + * function to write the bypass register which requires a poll of the + * busy bit + */ +static inline void cm_write_bypass(uint32_t val) +{ + writel(val, &clock_manager_base->bypass); + cm_wait4fsm(); +} + +/* function to write the ctrl register which requires a poll of the busy bit */ +static inline void cm_write_ctrl(uint32_t val) +{ + writel(val, &clock_manager_base->ctrl); + cm_wait4fsm(); +} + +/* function to write a clock register that has phase information */ +static inline void cm_write_with_phase(uint32_t value, + uint32_t reg_address, uint32_t mask) +{ + /* poll until phase is zero */ + do {} while (readl(reg_address) & mask); + + writel(value, reg_address); + + do {} while (readl(reg_address) & mask); +} + +/* + * Setup clocks while making no assumptions of the + * previous state of the clocks. + * + * Start by being paranoid and gate all sw managed clocks + * + * Put all plls in bypass + * + * Put all plls VCO registers back to reset value (bgpwr dwn). + * + * Put peripheral and main pll src to reset value to avoid glitch. + * + * Delay 5 us. + * + * Deassert bg pwr dn and set numerator and denominator + * + * Start 7 us timer. + * + * set internal dividers + * + * Wait for 7 us timer. + * + * Enable plls + * + * Set external dividers while plls are locking + * + * Wait for pll lock + * + * Assert/deassert outreset all. + * + * Take all pll's out of bypass + * + * Clear safe mode + * + * set source main and peripheral clocks + * + * Ungate clocks + */ + +void cm_basic_init(const cm_config_t *cfg) +{ + uint32_t start, timeout; + + /* Start by being paranoid and gate all sw managed clocks */ + + /* + * We need to disable nandclk + * and then do another apb access before disabling + * gatting off the rest of the periperal clocks. + */ + writel(~CLKMGR_PERPLLGRP_EN_NANDCLK_MASK & + readl(&clock_manager_base->per_pll_en), + &clock_manager_base->per_pll_en); + + /* DO NOT GATE OFF DEBUG CLOCKS & BRIDGE CLOCKS */ + writel(CLKMGR_MAINPLLGRP_EN_DBGTIMERCLK_MASK | + CLKMGR_MAINPLLGRP_EN_DBGTRACECLK_MASK | + CLKMGR_MAINPLLGRP_EN_DBGCLK_MASK | + CLKMGR_MAINPLLGRP_EN_DBGATCLK_MASK | + CLKMGR_MAINPLLGRP_EN_S2FUSER0CLK_MASK | + CLKMGR_MAINPLLGRP_EN_L4MPCLK_MASK, + &clock_manager_base->main_pll_en); + + writel(0, &clock_manager_base->sdr_pll_en); + + /* now we can gate off the rest of the peripheral clocks */ + writel(0, &clock_manager_base->per_pll_en); + + /* Put all plls in bypass */ + cm_write_bypass( + CLKMGR_BYPASS_PERPLLSRC_SET( + CLKMGR_BYPASS_PERPLLSRC_ENUM_SELECT_EOSC1) | + CLKMGR_BYPASS_SDRPLLSRC_SET( + CLKMGR_BYPASS_SDRPLLSRC_ENUM_SELECT_EOSC1) | + CLKMGR_BYPASS_PERPLL_SET(CLKMGR_BYPASS_ENUM_ENABLE) | + CLKMGR_BYPASS_SDRPLL_SET(CLKMGR_BYPASS_ENUM_ENABLE) | + CLKMGR_BYPASS_MAINPLL_SET(CLKMGR_BYPASS_ENUM_ENABLE)); + + /* + * Put all plls VCO registers back to reset value. + * Some code might have messed with them. + */ + writel(CLKMGR_MAINPLLGRP_VCO_RESET_VALUE, + &clock_manager_base->main_pll_vco); + writel(CLKMGR_PERPLLGRP_VCO_RESET_VALUE, + &clock_manager_base->per_pll_vco); + writel(CLKMGR_SDRPLLGRP_VCO_RESET_VALUE, + &clock_manager_base->sdr_pll_vco); + + /* + * The clocks to the flash devices and the L4_MAIN clocks can + * glitch when coming out of safe mode if their source values + * are different from their reset value. So the trick it to + * put them back to their reset state, and change input + * after exiting safe mode but before ungating the clocks. + */ + writel(CLKMGR_PERPLLGRP_SRC_RESET_VALUE, + &clock_manager_base->per_pll_src); + writel(CLKMGR_MAINPLLGRP_L4SRC_RESET_VALUE, + &clock_manager_base->main_pll_l4src); + + /* read back for the required 5 us delay. */ + readl(&clock_manager_base->main_pll_vco); + readl(&clock_manager_base->per_pll_vco); + readl(&clock_manager_base->sdr_pll_vco); + + + /* + * We made sure bgpwr down was assert for 5 us. Now deassert BG PWR DN + * with numerator and denominator. + */ + writel(cfg->main_vco_base | CLEAR_BGP_EN_PWRDN | + CLKMGR_MAINPLLGRP_VCO_REGEXTSEL_MASK, + &clock_manager_base->main_pll_vco); + + writel(cfg->peri_vco_base | CLEAR_BGP_EN_PWRDN | + CLKMGR_PERPLLGRP_VCO_REGEXTSEL_MASK, + &clock_manager_base->per_pll_vco); + + writel(CLKMGR_SDRPLLGRP_VCO_OUTRESET_SET(0) | + CLKMGR_SDRPLLGRP_VCO_OUTRESETALL_SET(0) | + cfg->sdram_vco_base | CLEAR_BGP_EN_PWRDN | + CLKMGR_SDRPLLGRP_VCO_REGEXTSEL_MASK, + &clock_manager_base->sdr_pll_vco); + + /* + * Time starts here + * must wait 7 us from BGPWRDN_SET(0) to VCO_ENABLE_SET(1) + */ + reset_timer(); + start = get_timer(0); + /* timeout in unit of us as CONFIG_SYS_HZ = 1000*1000 */ + timeout = 7; + + /* main mpu */ + writel(cfg->mpuclk, &clock_manager_base->main_pll_mpuclk); + + /* main main clock */ + writel(cfg->mainclk, &clock_manager_base->main_pll_mainclk); + + /* main for dbg */ + writel(cfg->dbgatclk, &clock_manager_base->main_pll_dbgatclk); + + /* main for cfgs2fuser0clk */ + writel(cfg->cfg2fuser0clk, + &clock_manager_base->main_pll_cfgs2fuser0clk); + + /* Peri emac0 50 MHz default to RMII */ + writel(cfg->emac0clk, &clock_manager_base->per_pll_emac0clk); + + /* Peri emac1 50 MHz default to RMII */ + writel(cfg->emac1clk, &clock_manager_base->per_pll_emac1clk); + + /* Peri QSPI */ + writel(cfg->mainqspiclk, &clock_manager_base->main_pll_mainqspiclk); + + writel(cfg->perqspiclk, &clock_manager_base->per_pll_perqspiclk); + + /* Peri pernandsdmmcclk */ + writel(cfg->pernandsdmmcclk, + &clock_manager_base->per_pll_pernandsdmmcclk); + + /* Peri perbaseclk */ + writel(cfg->perbaseclk, &clock_manager_base->per_pll_perbaseclk); + + /* Peri s2fuser1clk */ + writel(cfg->s2fuser1clk, &clock_manager_base->per_pll_s2fuser1clk); + + /* 7 us must have elapsed before we can enable the VCO */ + for ( ; get_timer(start) < timeout ; ) + ; + + /* Enable vco */ + /* main pll vco */ + writel(cfg->main_vco_base | VCO_EN_BASE, + &clock_manager_base->main_pll_vco); + + /* periferal pll */ + writel(cfg->peri_vco_base | VCO_EN_BASE, + &clock_manager_base->per_pll_vco); + + /* sdram pll vco */ + writel(CLKMGR_SDRPLLGRP_VCO_OUTRESET_SET(0) | + CLKMGR_SDRPLLGRP_VCO_OUTRESETALL_SET(0) | + cfg->sdram_vco_base | VCO_EN_BASE, + &clock_manager_base->sdr_pll_vco); + + /* L3 MP and L3 SP */ + writel(cfg->maindiv, &clock_manager_base->main_pll_maindiv); + + writel(cfg->dbgdiv, &clock_manager_base->main_pll_dbgdiv); + + writel(cfg->tracediv, &clock_manager_base->main_pll_tracediv); + + /* L4 MP, L4 SP, can0, and can1 */ + writel(cfg->perdiv, &clock_manager_base->per_pll_div); + + writel(cfg->gpiodiv, &clock_manager_base->per_pll_gpiodiv); + +#define LOCKED_MASK \ + (CLKMGR_INTER_SDRPLLLOCKED_MASK | \ + CLKMGR_INTER_PERPLLLOCKED_MASK | \ + CLKMGR_INTER_MAINPLLLOCKED_MASK) + + cm_wait_for_lock(LOCKED_MASK); + + /* write the sdram clock counters before toggling outreset all */ + writel(cfg->ddrdqsclk & CLKMGR_SDRPLLGRP_DDRDQSCLK_CNT_MASK, + &clock_manager_base->sdr_pll_ddrdqsclk); + + writel(cfg->ddr2xdqsclk & CLKMGR_SDRPLLGRP_DDR2XDQSCLK_CNT_MASK, + &clock_manager_base->sdr_pll_ddr2xdqsclk); + + writel(cfg->ddrdqclk & CLKMGR_SDRPLLGRP_DDRDQCLK_CNT_MASK, + &clock_manager_base->sdr_pll_ddrdqclk); + + writel(cfg->s2fuser2clk & CLKMGR_SDRPLLGRP_S2FUSER2CLK_CNT_MASK, + &clock_manager_base->sdr_pll_s2fuser2clk); + + /* + * after locking, but before taking out of bypass + * assert/deassert outresetall + */ + uint32_t mainvco = readl(&clock_manager_base->main_pll_vco); + + /* assert main outresetall */ + writel(mainvco | CLKMGR_MAINPLLGRP_VCO_OUTRESETALL_MASK, + &clock_manager_base->main_pll_vco); + + uint32_t periphvco = readl(&clock_manager_base->per_pll_vco); + + /* assert pheriph outresetall */ + writel(periphvco | CLKMGR_PERPLLGRP_VCO_OUTRESETALL_MASK, + &clock_manager_base->per_pll_vco); + + /* assert sdram outresetall */ + writel(cfg->sdram_vco_base | VCO_EN_BASE| + CLKMGR_SDRPLLGRP_VCO_OUTRESETALL_SET(1), + &clock_manager_base->sdr_pll_vco); + + /* deassert main outresetall */ + writel(mainvco & ~CLKMGR_MAINPLLGRP_VCO_OUTRESETALL_MASK, + &clock_manager_base->main_pll_vco); + + /* deassert pheriph outresetall */ + writel(periphvco & ~CLKMGR_PERPLLGRP_VCO_OUTRESETALL_MASK, + &clock_manager_base->per_pll_vco); + + /* deassert sdram outresetall */ + writel(CLKMGR_SDRPLLGRP_VCO_OUTRESETALL_SET(0) | + cfg->sdram_vco_base | VCO_EN_BASE, + &clock_manager_base->sdr_pll_vco); + + /* + * now that we've toggled outreset all, all the clocks + * are aligned nicely; so we can change any phase. + */ + cm_write_with_phase(cfg->ddrdqsclk, + (uint32_t)&clock_manager_base->sdr_pll_ddrdqsclk, + CLKMGR_SDRPLLGRP_DDRDQSCLK_PHASE_MASK); + + /* SDRAM DDR2XDQSCLK */ + cm_write_with_phase(cfg->ddr2xdqsclk, + (uint32_t)&clock_manager_base->sdr_pll_ddr2xdqsclk, + CLKMGR_SDRPLLGRP_DDR2XDQSCLK_PHASE_MASK); + + cm_write_with_phase(cfg->ddrdqclk, + (uint32_t)&clock_manager_base->sdr_pll_ddrdqclk, + CLKMGR_SDRPLLGRP_DDRDQCLK_PHASE_MASK); + + cm_write_with_phase(cfg->s2fuser2clk, + (uint32_t)&clock_manager_base->sdr_pll_s2fuser2clk, + CLKMGR_SDRPLLGRP_S2FUSER2CLK_PHASE_MASK); + + /* Take all three PLLs out of bypass when safe mode is cleared. */ + cm_write_bypass( + CLKMGR_BYPASS_PERPLLSRC_SET( + CLKMGR_BYPASS_PERPLLSRC_ENUM_SELECT_EOSC1) | + CLKMGR_BYPASS_SDRPLLSRC_SET( + CLKMGR_BYPASS_SDRPLLSRC_ENUM_SELECT_EOSC1) | + CLKMGR_BYPASS_PERPLL_SET(CLKMGR_BYPASS_ENUM_DISABLE) | + CLKMGR_BYPASS_SDRPLL_SET(CLKMGR_BYPASS_ENUM_DISABLE) | + CLKMGR_BYPASS_MAINPLL_SET(CLKMGR_BYPASS_ENUM_DISABLE)); + + /* clear safe mode */ + cm_write_ctrl(readl(&clock_manager_base->ctrl) | + CLKMGR_CTRL_SAFEMODE_SET(CLKMGR_CTRL_SAFEMODE_MASK)); + + /* + * now that safe mode is clear with clocks gated + * it safe to change the source mux for the flashes the the L4_MAIN + */ + writel(cfg->persrc, &clock_manager_base->per_pll_src); + writel(cfg->l4src, &clock_manager_base->main_pll_l4src); + + /* Now ungate non-hw-managed clocks */ + writel(~0, &clock_manager_base->main_pll_en); + writel(~0, &clock_manager_base->per_pll_en); + writel(~0, &clock_manager_base->sdr_pll_en); +} diff --git a/arch/arm/cpu/armv7/socfpga/spl.c b/arch/arm/cpu/armv7/socfpga/spl.c index 8a49a1a..dc8b54b 100644 --- a/arch/arm/cpu/armv7/socfpga/spl.c +++ b/arch/arm/cpu/armv7/socfpga/spl.c @@ -28,10 +28,100 @@ u32 spl_boot_device(void) void spl_board_init(void) { #ifndef CONFIG_SOCFPGA_VIRTUAL_TARGET + + cm_config_t cm_default_cfg = { + /* main group */ + MAIN_VCO_BASE, + CLKMGR_MAINPLLGRP_MPUCLK_CNT_SET( + CONFIG_HPS_MAINPLLGRP_MPUCLK_CNT), + CLKMGR_MAINPLLGRP_MAINCLK_CNT_SET( + CONFIG_HPS_MAINPLLGRP_MAINCLK_CNT), + CLKMGR_MAINPLLGRP_DBGATCLK_CNT_SET( + CONFIG_HPS_MAINPLLGRP_DBGATCLK_CNT), + CLKMGR_MAINPLLGRP_MAINQSPICLK_CNT_SET( + CONFIG_HPS_MAINPLLGRP_MAINQSPICLK_CNT), + CLKMGR_PERPLLGRP_PERNANDSDMMCCLK_CNT_SET( + CONFIG_HPS_MAINPLLGRP_MAINNANDSDMMCCLK_CNT), + CLKMGR_MAINPLLGRP_CFGS2FUSER0CLK_CNT_SET( + CONFIG_HPS_MAINPLLGRP_CFGS2FUSER0CLK_CNT), + CLKMGR_MAINPLLGRP_MAINDIV_L3MPCLK_SET( + CONFIG_HPS_MAINPLLGRP_MAINDIV_L3MPCLK) | + CLKMGR_MAINPLLGRP_MAINDIV_L3SPCLK_SET( + CONFIG_HPS_MAINPLLGRP_MAINDIV_L3SPCLK) | + CLKMGR_MAINPLLGRP_MAINDIV_L4MPCLK_SET( + CONFIG_HPS_MAINPLLGRP_MAINDIV_L4MPCLK) | + CLKMGR_MAINPLLGRP_MAINDIV_L4SPCLK_SET( + CONFIG_HPS_MAINPLLGRP_MAINDIV_L4SPCLK), + CLKMGR_MAINPLLGRP_DBGDIV_DBGATCLK_SET( + CONFIG_HPS_MAINPLLGRP_DBGDIV_DBGATCLK) | + CLKMGR_MAINPLLGRP_DBGDIV_DBGCLK_SET( + CONFIG_HPS_MAINPLLGRP_DBGDIV_DBGCLK), + CLKMGR_MAINPLLGRP_TRACEDIV_TRACECLK_SET( + CONFIG_HPS_MAINPLLGRP_TRACEDIV_TRACECLK), + CLKMGR_MAINPLLGRP_L4SRC_L4MP_SET( + CONFIG_HPS_MAINPLLGRP_L4SRC_L4MP) | + CLKMGR_MAINPLLGRP_L4SRC_L4SP_SET( + CONFIG_HPS_MAINPLLGRP_L4SRC_L4SP), + + /* peripheral group */ + PERI_VCO_BASE, + CLKMGR_PERPLLGRP_EMAC0CLK_CNT_SET( + CONFIG_HPS_PERPLLGRP_EMAC0CLK_CNT), + CLKMGR_PERPLLGRP_EMAC1CLK_CNT_SET( + CONFIG_HPS_PERPLLGRP_EMAC1CLK_CNT), + CLKMGR_PERPLLGRP_PERQSPICLK_CNT_SET( + CONFIG_HPS_PERPLLGRP_PERQSPICLK_CNT), + CLKMGR_PERPLLGRP_PERNANDSDMMCCLK_CNT_SET( + CONFIG_HPS_PERPLLGRP_PERNANDSDMMCCLK_CNT), + CLKMGR_PERPLLGRP_PERBASECLK_CNT_SET( + CONFIG_HPS_PERPLLGRP_PERBASECLK_CNT), + CLKMGR_PERPLLGRP_S2FUSER1CLK_CNT_SET( + CONFIG_HPS_PERPLLGRP_S2FUSER1CLK_CNT), + CLKMGR_PERPLLGRP_DIV_USBCLK_SET( + CONFIG_HPS_PERPLLGRP_DIV_USBCLK) | + CLKMGR_PERPLLGRP_DIV_SPIMCLK_SET( + CONFIG_HPS_PERPLLGRP_DIV_SPIMCLK) | + CLKMGR_PERPLLGRP_DIV_CAN0CLK_SET( + CONFIG_HPS_PERPLLGRP_DIV_CAN0CLK) | + CLKMGR_PERPLLGRP_DIV_CAN1CLK_SET( + CONFIG_HPS_PERPLLGRP_DIV_CAN1CLK), + CLKMGR_PERPLLGRP_GPIODIV_GPIODBCLK_SET( + CONFIG_HPS_PERPLLGRP_GPIODIV_GPIODBCLK), + CLKMGR_PERPLLGRP_SRC_QSPI_SET( + CONFIG_HPS_PERPLLGRP_SRC_QSPI) | + CLKMGR_PERPLLGRP_SRC_NAND_SET( + CONFIG_HPS_PERPLLGRP_SRC_NAND) | + CLKMGR_PERPLLGRP_SRC_SDMMC_SET( + CONFIG_HPS_PERPLLGRP_SRC_SDMMC), + + /* sdram pll group */ + SDR_VCO_BASE, + CLKMGR_SDRPLLGRP_DDRDQSCLK_PHASE_SET( + CONFIG_HPS_SDRPLLGRP_DDRDQSCLK_PHASE) | + CLKMGR_SDRPLLGRP_DDRDQSCLK_CNT_SET( + CONFIG_HPS_SDRPLLGRP_DDRDQSCLK_CNT), + CLKMGR_SDRPLLGRP_DDR2XDQSCLK_PHASE_SET( + CONFIG_HPS_SDRPLLGRP_DDR2XDQSCLK_PHASE) | + CLKMGR_SDRPLLGRP_DDR2XDQSCLK_CNT_SET( + CONFIG_HPS_SDRPLLGRP_DDR2XDQSCLK_CNT), + CLKMGR_SDRPLLGRP_DDRDQCLK_PHASE_SET( + CONFIG_HPS_SDRPLLGRP_DDRDQCLK_PHASE) | + CLKMGR_SDRPLLGRP_DDRDQCLK_CNT_SET( + CONFIG_HPS_SDRPLLGRP_DDRDQCLK_CNT), + CLKMGR_SDRPLLGRP_S2FUSER2CLK_PHASE_SET( + CONFIG_HPS_SDRPLLGRP_S2FUSER2CLK_PHASE) | + CLKMGR_SDRPLLGRP_S2FUSER2CLK_CNT_SET( + CONFIG_HPS_SDRPLLGRP_S2FUSER2CLK_CNT), + }; + debug("Freezing all I/O banks\n"); /* freeze all IO banks */ sys_mgr_frzctrl_freeze_req();
+ debug("Reconfigure Clock Manager\n"); + /* reconfigure the PLLs */ + cm_basic_init(&cm_default_cfg); + /* configure the IOCSR / IO buffer settings */ if (scan_mgr_configure_iocsr()) hang(); diff --git a/arch/arm/include/asm/arch-socfpga/clock_manager.h b/arch/arm/include/asm/arch-socfpga/clock_manager.h new file mode 100644 index 0000000..966add3 --- /dev/null +++ b/arch/arm/include/asm/arch-socfpga/clock_manager.h @@ -0,0 +1,205 @@ +/* + * Copyright (C) 2013 Altera Corporation <www.altera.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _CLOCK_MANAGER_H_ +#define _CLOCK_MANAGER_H_ + +typedef struct { + /* main group */ + uint32_t main_vco_base; + uint32_t mpuclk; + uint32_t mainclk; + uint32_t dbgatclk; + uint32_t mainqspiclk; + uint32_t mainnandsdmmcclk; + uint32_t cfg2fuser0clk; + uint32_t maindiv; + uint32_t dbgdiv; + uint32_t tracediv; + uint32_t l4src; + + /* peripheral group */ + uint32_t peri_vco_base; + uint32_t emac0clk; + uint32_t emac1clk; + uint32_t perqspiclk; + uint32_t pernandsdmmcclk; + uint32_t perbaseclk; + uint32_t s2fuser1clk; + uint32_t perdiv; + uint32_t gpiodiv; + uint32_t persrc; + + /* sdram pll group */ + uint32_t sdram_vco_base; + uint32_t ddrdqsclk; + uint32_t ddr2xdqsclk; + uint32_t ddrdqclk; + uint32_t s2fuser2clk; +} cm_config_t; + +extern void cm_basic_init(const cm_config_t *cfg); + +struct socfpga_clock_manager { + u32 ctrl; + u32 bypass; + u32 inter; + u32 intren; + u32 dbctrl; + u32 stat; + u32 _pad_0x18_0x3f[10]; + u32 mainpllgrp; + u32 perpllgrp; + u32 sdrpllgrp; + u32 _pad_0xe0_0x200[72]; + + u32 main_pll_vco; + u32 main_pll_misc; + u32 main_pll_mpuclk; + u32 main_pll_mainclk; + u32 main_pll_dbgatclk; + u32 main_pll_mainqspiclk; + u32 main_pll_mainnandsdmmcclk; + u32 main_pll_cfgs2fuser0clk; + u32 main_pll_en; + u32 main_pll_maindiv; + u32 main_pll_dbgdiv; + u32 main_pll_tracediv; + u32 main_pll_l4src; + u32 main_pll_stat; + u32 main_pll__pad_0x38_0x40[2]; + + u32 per_pll_vco; + u32 per_pll_misc; + u32 per_pll_emac0clk; + u32 per_pll_emac1clk; + u32 per_pll_perqspiclk; + u32 per_pll_pernandsdmmcclk; + u32 per_pll_perbaseclk; + u32 per_pll_s2fuser1clk; + u32 per_pll_en; + u32 per_pll_div; + u32 per_pll_gpiodiv; + u32 per_pll_src; + u32 per_pll_stat; + u32 per_pll__pad_0x34_0x40[3]; + + u32 sdr_pll_vco; + u32 sdr_pll_ctrl; + u32 sdr_pll_ddrdqsclk; + u32 sdr_pll_ddr2xdqsclk; + u32 sdr_pll_ddrdqclk; + u32 sdr_pll_s2fuser2clk; + u32 sdr_pll_en; + u32 sdr_pll_stat; +}; + +#define CLKMGR_MAINPLLGRP_EN_S2FUSER0CLK_MASK 0x00000200 +#define CLKMGR_MAINPLLGRP_EN_DBGTIMERCLK_MASK 0x00000080 +#define CLKMGR_MAINPLLGRP_EN_DBGTRACECLK_MASK 0x00000040 +#define CLKMGR_MAINPLLGRP_EN_DBGCLK_MASK 0x00000020 +#define CLKMGR_MAINPLLGRP_EN_DBGATCLK_MASK 0x00000010 +#define CLKMGR_MAINPLLGRP_EN_L4MPCLK_MASK 0x00000004 +#define CLKMGR_MAINPLLGRP_VCO_RESET_VALUE 0x8001000d +#define CLKMGR_PERPLLGRP_VCO_RESET_VALUE 0x8001000d +#define CLKMGR_SDRPLLGRP_VCO_RESET_VALUE 0x8001000d +#define CLKMGR_MAINPLLGRP_MAINDIV_L4MPCLK_SET(x) (((x) << 4) & 0x00000070) +#define CLKMGR_MAINPLLGRP_MAINDIV_L4SPCLK_SET(x) (((x) << 7) & 0x00000380) +#define CLKMGR_MAINPLLGRP_L4SRC_L4MP_SET(x) (((x) << 0) & 0x00000001) +#define CLKMGR_MAINPLLGRP_L4SRC_L4SP_SET(x) (((x) << 1) & 0x00000002) +#define CLKMGR_PERPLLGRP_SRC_QSPI_SET(x) (((x) << 4) & 0x00000030) +#define CLKMGR_PERPLLGRP_SRC_NAND_SET(x) (((x) << 2) & 0x0000000c) +#define CLKMGR_PERPLLGRP_SRC_SDMMC_SET(x) (((x) << 0) & 0x00000003) +#define CLKMGR_MAINPLLGRP_VCO_DENOM_SET(x) (((x) << 16) & 0x003f0000) +#define CLKMGR_MAINPLLGRP_VCO_NUMER_SET(x) (((x) << 3) & 0x0000fff8) +#define CLKMGR_MAINPLLGRP_VCO_PWRDN_SET(x) (((x) << 2) & 0x00000004) +#define CLKMGR_MAINPLLGRP_VCO_EN_SET(x) (((x) << 1) & 0x00000002) +#define CLKMGR_MAINPLLGRP_VCO_BGPWRDN_SET(x) (((x) << 0) & 0x00000001) +#define CLKMGR_PERPLLGRP_VCO_PSRC_SET(x) (((x) << 22) & 0x00c00000) +#define CLKMGR_PERPLLGRP_VCO_DENOM_SET(x) (((x) << 16) & 0x003f0000) +#define CLKMGR_PERPLLGRP_VCO_NUMER_SET(x) (((x) << 3) & 0x0000fff8) +#define CLKMGR_SDRPLLGRP_VCO_OUTRESET_SET(x) (((x) << 25) & 0x7e000000) +#define CLKMGR_SDRPLLGRP_VCO_OUTRESETALL_SET(x) (((x) << 24) & 0x01000000) +#define CLKMGR_SDRPLLGRP_VCO_SSRC_SET(x) (((x) << 22) & 0x00c00000) +#define CLKMGR_SDRPLLGRP_VCO_DENOM_SET(x) (((x) << 16) & 0x003f0000) +#define CLKMGR_SDRPLLGRP_VCO_NUMER_SET(x) (((x) << 3) & 0x0000fff8) +#define CLKMGR_MAINPLLGRP_MPUCLK_CNT_SET(x) (((x) << 0) & 0x000001ff) +#define CLKMGR_MAINPLLGRP_MAINCLK_CNT_SET(x) (((x) << 0) & 0x000001ff) +#define CLKMGR_MAINPLLGRP_DBGATCLK_CNT_SET(x) (((x) << 0) & 0x000001ff) +#define CLKMGR_MAINPLLGRP_CFGS2FUSER0CLK_CNT_SET(x) \ + (((x) << 0) & 0x000001ff) +#define CLKMGR_PERPLLGRP_EMAC0CLK_CNT_SET(x) (((x) << 0) & 0x000001ff) +#define CLKMGR_PERPLLGRP_EMAC1CLK_CNT_SET(x) (((x) << 0) & 0x000001ff) +#define CLKMGR_MAINPLLGRP_MAINQSPICLK_CNT_SET(x) (((x) << 0) & 0x000001ff) +#define CLKMGR_MAINPLLGRP_MAINNANDSDMMCCLK_CNT_SET(x) \ + (((x) << 0) & 0x000001ff) +#define CLKMGR_PERPLLGRP_PERBASECLK_CNT_SET(x) (((x) << 0) & 0x000001ff) +#define CLKMGR_PERPLLGRP_S2FUSER1CLK_CNT_SET(x) (((x) << 0) & 0x000001ff) +#define CLKMGR_PERPLLGRP_PERNANDSDMMCCLK_CNT_SET(x) (((x) << 0) & 0x000001ff) +#define CLKMGR_SDRPLLGRP_DDRDQSCLK_PHASE_SET(x) (((x) << 9) & 0x00000e00) +#define CLKMGR_SDRPLLGRP_DDRDQSCLK_CNT_SET(x) (((x) << 0) & 0x000001ff) +#define CLKMGR_SDRPLLGRP_DDR2XDQSCLK_PHASE_SET(x) (((x) << 9) & 0x00000e00) +#define CLKMGR_SDRPLLGRP_DDR2XDQSCLK_CNT_SET(x) (((x) << 0) & 0x000001ff) +#define CLKMGR_SDRPLLGRP_DDRDQCLK_PHASE_SET(x) (((x) << 9) & 0x00000e00) +#define CLKMGR_SDRPLLGRP_DDRDQCLK_CNT_SET(x) (((x) << 0) & 0x000001ff) +#define CLKMGR_SDRPLLGRP_S2FUSER2CLK_PHASE_SET(x) (((x) << 9) & 0x00000e00) +#define CLKMGR_SDRPLLGRP_S2FUSER2CLK_CNT_SET(x) (((x) << 0) & 0x000001ff) +#define CLKMGR_MAINPLLGRP_DBGDIV_DBGCLK_SET(x) (((x) << 2) & 0x0000000c) +#define CLKMGR_MAINPLLGRP_DBGDIV_DBGATCLK_SET(x) (((x) << 0) & 0x00000003) +#define CLKMGR_MAINPLLGRP_TRACEDIV_TRACECLK_SET(x) (((x) << 0) & 0x00000007) +#define CLKMGR_MAINPLLGRP_MAINDIV_L3MPCLK_SET(x) (((x) << 0) & 0x00000003) +#define CLKMGR_MAINPLLGRP_MAINDIV_L3SPCLK_SET(x) (((x) << 2) & 0x0000000c) +#define CLKMGR_BYPASS_PERPLL_SET(x) (((x) << 3) & 0x00000008) +#define CLKMGR_BYPASS_SDRPLL_SET(x) (((x) << 1) & 0x00000002) +#define CLKMGR_BYPASS_MAINPLL_SET(x) (((x) << 0) & 0x00000001) +#define CLKMGR_PERPLLGRP_DIV_USBCLK_SET(x) (((x) << 0) & 0x00000007) +#define CLKMGR_PERPLLGRP_DIV_SPIMCLK_SET(x) (((x) << 3) & 0x00000038) +#define CLKMGR_PERPLLGRP_DIV_CAN0CLK_SET(x) (((x) << 6) & 0x000001c0) +#define CLKMGR_PERPLLGRP_DIV_CAN1CLK_SET(x) (((x) << 9) & 0x00000e00) +#define CLKMGR_INTER_SDRPLLLOCKED_MASK 0x00000100 +#define CLKMGR_INTER_PERPLLLOCKED_MASK 0x00000080 +#define CLKMGR_INTER_MAINPLLLOCKED_MASK 0x00000040 +#define CLKMGR_CTRL_SAFEMODE_MASK 0x00000001 +#define CLKMGR_CTRL_SAFEMODE_SET(x) (((x) << 0) & 0x00000001) +#define CLKMGR_SDRPLLGRP_VCO_OUTRESET_MASK 0x7e000000 +#define CLKMGR_SDRPLLGRP_VCO_OUTRESETALL_SET(x) (((x) << 24) & 0x01000000) +#define CLKMGR_PERPLLGRP_PERQSPICLK_CNT_SET(x) (((x) << 0) & 0x000001ff) +#define CLKMGR_PERPLLGRP_DIV_SPIMCLK_SET(x) (((x) << 3) & 0x00000038) +#define CLKMGR_PERPLLGRP_GPIODIV_GPIODBCLK_SET(x) (((x) << 0) & 0x00ffffff) +#define CLKMGR_BYPASS_PERPLLSRC_SET(x) (((x) << 4) & 0x00000010) +#define CLKMGR_BYPASS_SDRPLLSRC_SET(x) (((x) << 2) & 0x00000004) +#define CLKMGR_PERPLLGRP_SRC_RESET_VALUE 0x00000015 +#define CLKMGR_MAINPLLGRP_L4SRC_RESET_VALUE 0x00000000 +#define CLKMGR_MAINPLLGRP_VCO_REGEXTSEL_MASK 0x80000000 +#define CLKMGR_PERPLLGRP_VCO_REGEXTSEL_MASK 0x80000000 +#define CLKMGR_SDRPLLGRP_VCO_REGEXTSEL_MASK 0x80000000 +#define CLKMGR_SDRPLLGRP_DDRDQSCLK_PHASE_MASK 0x001ffe00 +#define CLKMGR_SDRPLLGRP_DDR2XDQSCLK_PHASE_MASK 0x001ffe00 +#define CLKMGR_SDRPLLGRP_DDRDQCLK_PHASE_MASK 0x001ffe00 +#define CLKMGR_SDRPLLGRP_S2FUSER2CLK_PHASE_MASK 0x001ffe00 +#define CLKMGR_MAINPLLGRP_VCO_OUTRESETALL_MASK 0x01000000 +#define CLKMGR_PERPLLGRP_VCO_OUTRESETALL_MASK 0x01000000 +#define CLKMGR_PERPLLGRP_EN_NANDCLK_MASK 0x00000400 +#define CLKMGR_SDRPLLGRP_DDRDQSCLK_CNT_MASK 0x000001ff +#define CLKMGR_SDRPLLGRP_DDR2XDQSCLK_CNT_MASK 0x000001ff +#define CLKMGR_SDRPLLGRP_DDRDQCLK_CNT_MASK 0x000001ff +#define CLKMGR_SDRPLLGRP_S2FUSER2CLK_CNT_MASK 0x000001ff + +#define MAIN_VCO_BASE \ + (CLKMGR_MAINPLLGRP_VCO_DENOM_SET(CONFIG_HPS_MAINPLLGRP_VCO_DENOM) | \ + CLKMGR_MAINPLLGRP_VCO_NUMER_SET(CONFIG_HPS_MAINPLLGRP_VCO_NUMER)) + +#define PERI_VCO_BASE \ + (CLKMGR_PERPLLGRP_VCO_PSRC_SET(CONFIG_HPS_PERPLLGRP_VCO_PSRC) | \ + CLKMGR_PERPLLGRP_VCO_DENOM_SET(CONFIG_HPS_PERPLLGRP_VCO_DENOM) | \ + CLKMGR_PERPLLGRP_VCO_NUMER_SET(CONFIG_HPS_PERPLLGRP_VCO_NUMER)) + +#define SDR_VCO_BASE \ + (CLKMGR_SDRPLLGRP_VCO_SSRC_SET(CONFIG_HPS_SDRPLLGRP_VCO_SSRC) | \ + CLKMGR_SDRPLLGRP_VCO_DENOM_SET(CONFIG_HPS_SDRPLLGRP_VCO_DENOM) | \ + CLKMGR_SDRPLLGRP_VCO_NUMER_SET(CONFIG_HPS_SDRPLLGRP_VCO_NUMER)) + +#endif /* _CLOCK_MANAGER_H_ */ diff --git a/arch/arm/include/asm/arch-socfpga/socfpga_base_addrs.h b/arch/arm/include/asm/arch-socfpga/socfpga_base_addrs.h index 8d329cf..20f12e0 100644 --- a/arch/arm/include/asm/arch-socfpga/socfpga_base_addrs.h +++ b/arch/arm/include/asm/arch-socfpga/socfpga_base_addrs.h @@ -11,6 +11,7 @@ #define SOCFPGA_UART0_ADDRESS 0xffc02000 #define SOCFPGA_UART1_ADDRESS 0xffc03000 #define SOCFPGA_OSC1TIMER0_ADDRESS 0xffd00000 +#define SOCFPGA_CLKMGR_ADDRESS 0xffd04000 #define SOCFPGA_RSTMGR_ADDRESS 0xffd05000 #define SOCFPGA_SYSMGR_ADDRESS 0xffd08000 #define SOCFPGA_SCANMGR_ADDRESS 0xfff02000 diff --git a/include/configs/socfpga_cyclone5.h b/include/configs/socfpga_cyclone5.h index 3d553f7..fc921ee 100644 --- a/include/configs/socfpga_cyclone5.h +++ b/include/configs/socfpga_cyclone5.h @@ -9,6 +9,7 @@ #include <asm/arch/socfpga_base_addrs.h> #include "../../board/altera/socfpga/pinmux_config.h" #include "../../board/altera/socfpga/iocsr_config.h" +#include "../../board/altera/socfpga/pll_config.h"
/* * High level configuration