Add driver and binding for stm32mp1 ddr controller and phy
Signed-off-by: Patrick Delaunay patrick.delaunay@st.com ---
MAINTAINERS | 1 + arch/arm/mach-stm32mp/include/mach/ddr.h | 12 + doc/device-tree-bindings/ram/st,stm32mp1-ddr.txt | 299 ++++++++++++++ drivers/ram/Kconfig | 2 + drivers/ram/Makefile | 1 + drivers/ram/stm32mp1/Kconfig | 12 + drivers/ram/stm32mp1/Makefile | 8 + drivers/ram/stm32mp1/stm32mp1_ddr.c | 496 +++++++++++++++++++++++ drivers/ram/stm32mp1/stm32mp1_ddr.h | 210 ++++++++++ drivers/ram/stm32mp1/stm32mp1_ddr_regs.h | 365 +++++++++++++++++ drivers/ram/stm32mp1/stm32mp1_ram.c | 197 +++++++++ 11 files changed, 1603 insertions(+) create mode 100644 arch/arm/mach-stm32mp/include/mach/ddr.h create mode 100644 doc/device-tree-bindings/ram/st,stm32mp1-ddr.txt create mode 100644 drivers/ram/stm32mp1/Kconfig create mode 100644 drivers/ram/stm32mp1/Makefile create mode 100644 drivers/ram/stm32mp1/stm32mp1_ddr.c create mode 100644 drivers/ram/stm32mp1/stm32mp1_ddr.h create mode 100644 drivers/ram/stm32mp1/stm32mp1_ddr_regs.h create mode 100644 drivers/ram/stm32mp1/stm32mp1_ram.c
diff --git a/MAINTAINERS b/MAINTAINERS index 9b19019..ff7b837 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -195,6 +195,7 @@ ARM STM STM32MP M: Patrick Delaunay patrick.delaunay@st.com S: Maintained F: arch/arm/mach-stm32mp +F: ram/stm32mp1
ARM STM STV0991 M: Vikas Manocha vikas.manocha@st.com diff --git a/arch/arm/mach-stm32mp/include/mach/ddr.h b/arch/arm/mach-stm32mp/include/mach/ddr.h new file mode 100644 index 0000000..b635001 --- /dev/null +++ b/arch/arm/mach-stm32mp/include/mach/ddr.h @@ -0,0 +1,12 @@ +/* + * Copyright (C) 2018, STMicroelectronics - All Rights Reserved + * + * SPDX-License-Identifier: GPL-2.0+ BSD-3-Clause + */ + +#ifndef __MACH_STM32MP_DDR_H_ +#define __MACH_STM32MP_DDR_H_ + +int board_ddr_power_init(void); + +#endif diff --git a/doc/device-tree-bindings/ram/st,stm32mp1-ddr.txt b/doc/device-tree-bindings/ram/st,stm32mp1-ddr.txt new file mode 100644 index 0000000..3028636 --- /dev/null +++ b/doc/device-tree-bindings/ram/st,stm32mp1-ddr.txt @@ -0,0 +1,299 @@ +ST,stm32mp1 DDR3/LPDDR2/LPDDR3 Controller (DDRCTRL and DDRPHYC) + +-------------------- +Required properties: +-------------------- +- compatible : Should be "st,stm32mp1-ddr" +- reg : controleur (DDRCTRL) and phy (DDRPHYC) base address +- clocks : controller clocks handle +- clock-names : associated controller clock names + the "ddrphyc" clock is used to check the DDR frequency + at phy level according the expected value in "mem-speed" field + +the next attributes are DDR parameters, they are generated by DDR tools +included in STM32 Cube tool + +info attributes: +---------------- +- st,mem-name : name for DDR configuration, simple string for information +- st,mem-speed : DDR expected speed for the setting in MHz +- st,mem-size : DDR mem size in byte + + +controlleur attributes: +----------------------- +- st,ctl-reg : controleur values depending of the DDR type + (DDR3/LPDDR2/LPDDR3) + for STM32MP15x: 25 values are requested in this order + MSTR + MRCTRL0 + MRCTRL1 + DERATEEN + DERATEINT + PWRCTL + PWRTMG + HWLPCTL + RFSHCTL0 + RFSHCTL3 + CRCPARCTL0 + ZQCTL0 + DFITMG0 + DFITMG1 + DFILPCFG0 + DFIUPD0 + DFIUPD1 + DFIUPD2 + DFIPHYMSTR + ODTMAP + DBG0 + DBG1 + DBGCMD + POISONCFG + PCCFG + +- st,ctl-timing : controleur values depending of frequency and timing parameter + of DDR + for STM32MP15x: 12 values are requested in this order + RFSHTMG + DRAMTMG0 + DRAMTMG1 + DRAMTMG2 + DRAMTMG3 + DRAMTMG4 + DRAMTMG5 + DRAMTMG6 + DRAMTMG7 + DRAMTMG8 + DRAMTMG14 + ODTCFG + +- st,ctl-map : controleur values depending of address mapping + for STM32MP15x: 9 values are requested in this order + ADDRMAP1 + ADDRMAP2 + ADDRMAP3 + ADDRMAP4 + ADDRMAP5 + ADDRMAP6 + ADDRMAP9 + ADDRMAP10 + ADDRMAP11 + +- st,ctl-perf : controleur values depending of performance and scheduling + for STM32MP15x: 17 values are requested in this order + SCHED + SCHED1 + PERFHPR1 + PERFLPR1 + PERFWR1 + PCFGR_0 + PCFGW_0 + PCFGQOS0_0 + PCFGQOS1_0 + PCFGWQOS0_0 + PCFGWQOS1_0 + PCFGR_1 + PCFGW_1 + PCFGQOS0_1 + PCFGQOS1_1 + PCFGWQOS0_1 + PCFGWQOS1_1 + +phyc attributes: +---------------- +- st,phy-reg : phy values depending of the DDR type (DDR3/LPDDR2/LPDDR3) + for STM32MP15x: 10 values are requested in this order + PGCR + ACIOCR + DXCCR + DSGCR + DCR + ODTCR + ZQ0CR1 + DX0GCR + DX1GCR + DX2GCR + DX3GCR + +- st,phy-timing : phy values depending of frequency and timing parameter of DDR + for STM32MP15x: 10 values are requested in this order + PTR0 + PTR1 + PTR2 + DTPR0 + DTPR1 + DTPR2 + MR0 + MR1 + MR2 + MR3 + +- st,phy-cal : phy cal depending of calibration or tuning of DDR + for STM32MP15x: 12 values are requested in this order + DX0DLLCR + DX0DQTR + DX0DQSTR + DX1DLLCR + DX1DQTR + DX1DQSTR + DX2DLLCR + DX2DQTR + DX2DQSTR + DX3DLLCR + DX3DQTR + DX3DQSTR + +Example: + +/ { + soc { + u-boot,dm-spl; + + ddr: ddr@0x5A003000{ + u-boot,dm-spl; + u-boot,dm-pre-reloc; + + compatible = "st,stm32mp1-ddr"; + + reg = <0x5A003000 0x550 + 0x5A004000 0x234>; + + clocks = <&rcc_clk AXIDCG>, + <&rcc_clk DDRC1>, + <&rcc_clk DDRC2>, + <&rcc_clk DDRPHYC>, + <&rcc_clk DDRCAPB>, + <&rcc_clk DDRPHYCAPB>; + + clock-names = "axidcg", + "ddrc1", + "ddrc2", + "ddrphyc", + "ddrcapb", + "ddrphycapb"; + + st,mem-name = "DDR3 2x4Gb 533MHz"; + st,mem-speed = <533>; + st,mem-size = <0x40000000>; + + st,ctl-reg = < + 0x00040401 /*MSTR*/ + 0x00000010 /*MRCTRL0*/ + 0x00000000 /*MRCTRL1*/ + 0x00000000 /*DERATEEN*/ + 0x00800000 /*DERATEINT*/ + 0x00000000 /*PWRCTL*/ + 0x00400010 /*PWRTMG*/ + 0x00000000 /*HWLPCTL*/ + 0x00210000 /*RFSHCTL0*/ + 0x00000000 /*RFSHCTL3*/ + 0x00000000 /*CRCPARCTL0*/ + 0xC2000040 /*ZQCTL0*/ + 0x02050105 /*DFITMG0*/ + 0x00000202 /*DFITMG1*/ + 0x07000000 /*DFILPCFG0*/ + 0xC0400003 /*DFIUPD0*/ + 0x00000000 /*DFIUPD1*/ + 0x00000000 /*DFIUPD2*/ + 0x00000000 /*DFIPHYMSTR*/ + 0x00000001 /*ODTMAP*/ + 0x00000000 /*DBG0*/ + 0x00000000 /*DBG1*/ + 0x00000000 /*DBGCMD*/ + 0x00000000 /*POISONCFG*/ + 0x00000010 /*PCCFG*/ + >; + + st,ctl-timing = < + 0x0080008A /*RFSHTMG*/ + 0x121B2414 /*DRAMTMG0*/ + 0x000D041B /*DRAMTMG1*/ + 0x0607080E /*DRAMTMG2*/ + 0x0050400C /*DRAMTMG3*/ + 0x07040407 /*DRAMTMG4*/ + 0x06060303 /*DRAMTMG5*/ + 0x02020002 /*DRAMTMG6*/ + 0x00000202 /*DRAMTMG7*/ + 0x00001005 /*DRAMTMG8*/ + 0x000D041B /*DRAMTMG1*/4 + 0x06000600 /*ODTCFG*/ + >; + + st,ctl-map = < + 0x00080808 /*ADDRMAP1*/ + 0x00000000 /*ADDRMAP2*/ + 0x00000000 /*ADDRMAP3*/ + 0x00001F1F /*ADDRMAP4*/ + 0x07070707 /*ADDRMAP5*/ + 0x0F070707 /*ADDRMAP6*/ + 0x00000000 /*ADDRMAP9*/ + 0x00000000 /*ADDRMAP10*/ + 0x00000000 /*ADDRMAP11*/ + >; + + st,ctl-perf = < + 0x00001201 /*SCHED*/ + 0x00001201 /*SCHED*/1 + 0x01000001 /*PERFHPR1*/ + 0x08000200 /*PERFLPR1*/ + 0x08000400 /*PERFWR1*/ + 0x00010000 /*PCFGR_0*/ + 0x00000000 /*PCFGW_0*/ + 0x02100B03 /*PCFGQOS0_0*/ + 0x00800100 /*PCFGQOS1_0*/ + 0x01100B03 /*PCFGWQOS0_0*/ + 0x01000200 /*PCFGWQOS1_0*/ + 0x00010000 /*PCFGR_1*/ + 0x00000000 /*PCFGW_1*/ + 0x02100B03 /*PCFGQOS0_1*/ + 0x00800000 /*PCFGQOS1_1*/ + 0x01100B03 /*PCFGWQOS0_1*/ + 0x01000200 /*PCFGWQOS1_1*/ + >; + + st,phy-reg = < + 0x01442E02 /*PGCR*/ + 0x10400812 /*ACIOCR*/ + 0x00000C40 /*DXCCR*/ + 0xF200001F /*DSGCR*/ + 0x0000000B /*DCR*/ + 0x00010000 /*ODTCR*/ + 0x0000007B /*ZQ0CR1*/ + 0x0000CE81 /*DX0GCR*/ + 0x0000CE81 /*DX1GCR*/ + 0x0000CE81 /*DX2GCR*/ + 0x0000CE81 /*DX3GCR*/ + >; + + st,phy-timing = < + 0x0022A41B /*PTR0*/ + 0x047C0740 /*PTR1*/ + 0x042D9C80 /*PTR2*/ + 0x369477D0 /*DTPR0*/ + 0x098A00D8 /*DTPR1*/ + 0x10023600 /*DTPR2*/ + 0x00000830 /*MR0*/ + 0x00000000 /*MR1*/ + 0x00000208 /*MR2*/ + 0x00000000 /*MR3*/ + >; + + st,phy-cal = < + 0x40000000 /*DX0DLLCR*/ + 0xFFFFFFFF /*DX0DQTR*/ + 0x3DB02000 /*DX0DQSTR*/ + 0x40000000 /*DX1DLLCR*/ + 0xFFFFFFFF /*DX1DQTR*/ + 0x3DB02000 /*DX1DQSTR*/ + 0x40000000 /*DX2DLLCR*/ + 0xFFFFFFFF /*DX2DQTR*/ + 0x3DB02000 /*DX2DQSTR*/ + 0x40000000 /*DX3DLLCR*/ + 0xFFFFFFFF /*DX3DQTR*/ + 0x3DB02000 /*DX3DQSTR*/ + >; + + status = "okay"; + }; + }; +}; diff --git a/drivers/ram/Kconfig b/drivers/ram/Kconfig index 47969f3..496e2b7 100644 --- a/drivers/ram/Kconfig +++ b/drivers/ram/Kconfig @@ -33,3 +33,5 @@ config STM32_SDRAM STM32F7 family devices support flexible memory controller(FMC) to support external memories like sdram, psram & nand. This driver is for the sdram memory interface with the FMC. + +source "drivers/ram/stm32mp1/Kconfig" diff --git a/drivers/ram/Makefile b/drivers/ram/Makefile index 51ae6be..3820d03 100644 --- a/drivers/ram/Makefile +++ b/drivers/ram/Makefile @@ -6,6 +6,7 @@ # obj-$(CONFIG_RAM) += ram-uclass.o obj-$(CONFIG_SANDBOX) += sandbox_ram.o +obj-$(CONFIG_STM32MP1_DDR) += stm32mp1/ obj-$(CONFIG_STM32_SDRAM) += stm32_sdram.o obj-$(CONFIG_ARCH_BMIPS) += bmips_ram.o
diff --git a/drivers/ram/stm32mp1/Kconfig b/drivers/ram/stm32mp1/Kconfig new file mode 100644 index 0000000..b9c8166 --- /dev/null +++ b/drivers/ram/stm32mp1/Kconfig @@ -0,0 +1,12 @@ + +config STM32MP1_DDR + bool "STM32MP1 DDR driver" + depends on DM && OF_CONTROL && ARCH_STM32MP + select RAM + select SPL_RAM if SPL + default y + help + activate STM32MP1 DDR controller driver for STM32MP1 soc + family: support for LPDDR2, LPDDR3 and DDR3 + the SDRAM parameters for controleur and phy need to be provided + in device tree (computed by DDR tuning tools) diff --git a/drivers/ram/stm32mp1/Makefile b/drivers/ram/stm32mp1/Makefile new file mode 100644 index 0000000..9f05cd4 --- /dev/null +++ b/drivers/ram/stm32mp1/Makefile @@ -0,0 +1,8 @@ +# +# Copyright (C) 2018, STMicroelectronics - All Rights Reserved +# +# SPDX-License-Identifier: GPL-2.0+ BSD-3-Clause +# + +obj-y += stm32mp1_ram.o +obj-y += stm32mp1_ddr.o diff --git a/drivers/ram/stm32mp1/stm32mp1_ddr.c b/drivers/ram/stm32mp1/stm32mp1_ddr.c new file mode 100644 index 0000000..ffe50d9 --- /dev/null +++ b/drivers/ram/stm32mp1/stm32mp1_ddr.c @@ -0,0 +1,496 @@ +/* + * Copyright (C) 2018, STMicroelectronics - All Rights Reserved + * + * SPDX-License-Identifier: GPL-2.0+ BSD-3-Clause + */ + +#include <common.h> +#include <clk.h> +#include <ram.h> +#include <reset.h> +#include <timer.h> +#include <asm/io.h> +#include <asm/arch/ddr.h> +#include <linux/iopoll.h> +#include "stm32mp1_ddr.h" +#include "stm32mp1_ddr_regs.h" + +#define RCC_DDRITFCR 0xD8 + +#define RCC_DDRITFCR_DDRCAPBRST (BIT(14)) +#define RCC_DDRITFCR_DDRCAXIRST (BIT(15)) +#define RCC_DDRITFCR_DDRCORERST (BIT(16)) +#define RCC_DDRITFCR_DPHYAPBRST (BIT(17)) +#define RCC_DDRITFCR_DPHYRST (BIT(18)) +#define RCC_DDRITFCR_DPHYCTLRST (BIT(19)) + +struct reg_desc { + const char *name; + u16 offset; /* offset for base address */ + u8 par_offset; /* offset for parameter array */ +}; + +#define INVALID_OFFSET 0xFF + +#define DDRCTL_REG(x, y) \ + {#x,\ + offsetof(struct stm32mp1_ddrctl, x),\ + offsetof(struct y, x)} + +#define DDRPHY_REG(x, y) \ + {#x,\ + offsetof(struct stm32mp1_ddrphy, x),\ + offsetof(struct y, x)} + +#define DDRCTL_REG_REG(x) DDRCTL_REG(x, stm32mp1_ddrctrl_reg) +static const struct reg_desc ddr_reg[] = { + DDRCTL_REG_REG(mstr), + DDRCTL_REG_REG(mrctrl0), + DDRCTL_REG_REG(mrctrl1), + DDRCTL_REG_REG(derateen), + DDRCTL_REG_REG(derateint), + DDRCTL_REG_REG(pwrctl), + DDRCTL_REG_REG(pwrtmg), + DDRCTL_REG_REG(hwlpctl), + DDRCTL_REG_REG(rfshctl0), + DDRCTL_REG_REG(rfshctl3), + DDRCTL_REG_REG(crcparctl0), + DDRCTL_REG_REG(zqctl0), + DDRCTL_REG_REG(dfitmg0), + DDRCTL_REG_REG(dfitmg1), + DDRCTL_REG_REG(dfilpcfg0), + DDRCTL_REG_REG(dfiupd0), + DDRCTL_REG_REG(dfiupd1), + DDRCTL_REG_REG(dfiupd2), + DDRCTL_REG_REG(dfiphymstr), + DDRCTL_REG_REG(odtmap), + DDRCTL_REG_REG(dbg0), + DDRCTL_REG_REG(dbg1), + DDRCTL_REG_REG(dbgcmd), + DDRCTL_REG_REG(poisoncfg), + DDRCTL_REG_REG(pccfg), +}; + +#define DDRCTL_REG_TIMING(x) DDRCTL_REG(x, stm32mp1_ddrctrl_timing) +static const struct reg_desc ddr_timing[] = { + DDRCTL_REG_TIMING(rfshtmg), + DDRCTL_REG_TIMING(dramtmg0), + DDRCTL_REG_TIMING(dramtmg1), + DDRCTL_REG_TIMING(dramtmg2), + DDRCTL_REG_TIMING(dramtmg3), + DDRCTL_REG_TIMING(dramtmg4), + DDRCTL_REG_TIMING(dramtmg5), + DDRCTL_REG_TIMING(dramtmg6), + DDRCTL_REG_TIMING(dramtmg7), + DDRCTL_REG_TIMING(dramtmg8), + DDRCTL_REG_TIMING(dramtmg14), + DDRCTL_REG_TIMING(odtcfg), +}; + +#define DDRCTL_REG_MAP(x) DDRCTL_REG(x, stm32mp1_ddrctrl_map) +static const struct reg_desc ddr_map[] = { + DDRCTL_REG_MAP(addrmap1), + DDRCTL_REG_MAP(addrmap2), + DDRCTL_REG_MAP(addrmap3), + DDRCTL_REG_MAP(addrmap4), + DDRCTL_REG_MAP(addrmap5), + DDRCTL_REG_MAP(addrmap6), + DDRCTL_REG_MAP(addrmap9), + DDRCTL_REG_MAP(addrmap10), + DDRCTL_REG_MAP(addrmap11), +}; + +#define DDRCTL_REG_PERF(x) DDRCTL_REG(x, stm32mp1_ddrctrl_perf) +static const struct reg_desc ddr_perf[] = { + DDRCTL_REG_PERF(sched), + DDRCTL_REG_PERF(sched1), + DDRCTL_REG_PERF(perfhpr1), + DDRCTL_REG_PERF(perflpr1), + DDRCTL_REG_PERF(perfwr1), + DDRCTL_REG_PERF(pcfgr_0), + DDRCTL_REG_PERF(pcfgw_0), + DDRCTL_REG_PERF(pcfgqos0_0), + DDRCTL_REG_PERF(pcfgqos1_0), + DDRCTL_REG_PERF(pcfgwqos0_0), + DDRCTL_REG_PERF(pcfgwqos1_0), + DDRCTL_REG_PERF(pcfgr_1), + DDRCTL_REG_PERF(pcfgw_1), + DDRCTL_REG_PERF(pcfgqos0_1), + DDRCTL_REG_PERF(pcfgqos1_1), + DDRCTL_REG_PERF(pcfgwqos0_1), + DDRCTL_REG_PERF(pcfgwqos1_1), +}; + +#define DDRPHY_REG_REG(x) DDRPHY_REG(x, stm32mp1_ddrphy_reg) +static const struct reg_desc ddrphy_reg[] = { + DDRPHY_REG_REG(pgcr), + DDRPHY_REG_REG(aciocr), + DDRPHY_REG_REG(dxccr), + DDRPHY_REG_REG(dsgcr), + DDRPHY_REG_REG(dcr), + DDRPHY_REG_REG(odtcr), + DDRPHY_REG_REG(zq0cr1), + DDRPHY_REG_REG(dx0gcr), + DDRPHY_REG_REG(dx1gcr), + DDRPHY_REG_REG(dx2gcr), + DDRPHY_REG_REG(dx3gcr), +}; + +#define DDRPHY_REG_TIMING(x) DDRPHY_REG(x, stm32mp1_ddrphy_timing) +static const struct reg_desc ddrphy_timing[] = { + DDRPHY_REG_TIMING(ptr0), + DDRPHY_REG_TIMING(ptr1), + DDRPHY_REG_TIMING(ptr2), + DDRPHY_REG_TIMING(dtpr0), + DDRPHY_REG_TIMING(dtpr1), + DDRPHY_REG_TIMING(dtpr2), + DDRPHY_REG_TIMING(mr0), + DDRPHY_REG_TIMING(mr1), + DDRPHY_REG_TIMING(mr2), + DDRPHY_REG_TIMING(mr3), +}; + +#define DDRPHY_REG_CAL(x) DDRPHY_REG(x, stm32mp1_ddrphy_cal) +static const struct reg_desc ddrphy_cal[] = { + DDRPHY_REG_CAL(dx0dllcr), + DDRPHY_REG_CAL(dx0dqtr), + DDRPHY_REG_CAL(dx0dqstr), + DDRPHY_REG_CAL(dx1dllcr), + DDRPHY_REG_CAL(dx1dqtr), + DDRPHY_REG_CAL(dx1dqstr), + DDRPHY_REG_CAL(dx2dllcr), + DDRPHY_REG_CAL(dx2dqtr), + DDRPHY_REG_CAL(dx2dqstr), + DDRPHY_REG_CAL(dx3dllcr), + DDRPHY_REG_CAL(dx3dqtr), + DDRPHY_REG_CAL(dx3dqstr), +}; + +enum reg_type { + REG_REG, + REG_TIMING, + REG_PERF, + REG_MAP, + REGPHY_REG, + REGPHY_TIMING, + REGPHY_CAL, + REG_TYPE_NB +}; + +enum base_type { + DDR_BASE, + DDRPHY_BASE, + NONE_BASE +}; + +struct ddr_reg_info { + const char *name; + const struct reg_desc *desc; + u8 size; + enum base_type base; +}; + +#define DDRPHY_REG_CAL(x) DDRPHY_REG(x, stm32mp1_ddrphy_cal) + +const struct ddr_reg_info ddr_registers[REG_TYPE_NB] = { +[REG_REG] = { + "static", ddr_reg, ARRAY_SIZE(ddr_reg), DDR_BASE}, +[REG_TIMING] = { + "timing", ddr_timing, ARRAY_SIZE(ddr_timing), DDR_BASE}, +[REG_PERF] = { + "perf", ddr_perf, ARRAY_SIZE(ddr_perf), DDR_BASE}, +[REG_MAP] = { + "map", ddr_map, ARRAY_SIZE(ddr_map), DDR_BASE}, +[REGPHY_REG] = { + "static", ddrphy_reg, ARRAY_SIZE(ddrphy_reg), DDRPHY_BASE}, +[REGPHY_TIMING] = { + "timing", ddrphy_timing, ARRAY_SIZE(ddrphy_timing), DDRPHY_BASE}, +[REGPHY_CAL] = { + "cal", ddrphy_cal, ARRAY_SIZE(ddrphy_cal), DDRPHY_BASE}, +}; + +const char *base_name[] = { + [DDR_BASE] = "ctl", + [DDRPHY_BASE] = "phy", +}; + +static u32 get_base_addr(const struct ddr_info *priv, enum base_type base) +{ + if (base == DDRPHY_BASE) + return (u32)priv->phy; + else + return (u32)priv->ctl; +} + +static void set_reg(const struct ddr_info *priv, + enum reg_type type, + const void *param) +{ + unsigned int i; + unsigned int *ptr, value; + enum base_type base = ddr_registers[type].base; + u32 base_addr = get_base_addr(priv, base); + const struct reg_desc *desc = ddr_registers[type].desc; + + debug("init %s\n", ddr_registers[type].name); + for (i = 0; i < ddr_registers[type].size; i++) { + ptr = (unsigned int *)(base_addr + desc[i].offset); + if (desc[i].par_offset == INVALID_OFFSET) { + pr_err("invalid parameter offset for %s", desc[i].name); + } else { + value = *((u32 *)((u32)param + + desc[i].par_offset)); + writel(value, ptr); + debug("[0x%x] %s= 0x%08x\n", + (u32)ptr, desc[i].name, value); + } + } +} + +static void ddrphy_idone_wait(struct stm32mp1_ddrphy *phy) +{ + u32 pgsr; + int ret; + + ret = readl_poll_timeout(&phy->pgsr, pgsr, + pgsr & (DDRPHYC_PGSR_IDONE | + DDRPHYC_PGSR_DTERR | + DDRPHYC_PGSR_DTIERR | + DDRPHYC_PGSR_DFTERR | + DDRPHYC_PGSR_RVERR | + DDRPHYC_PGSR_RVEIRR), + 1000000); + debug("\n[0x%08x] pgsr = 0x%08x ret=%d\n", + (u32)&phy->pgsr, pgsr, ret); +} + +void stm32mp1_ddrphy_init(struct stm32mp1_ddrphy *phy, u32 pir) +{ + pir |= DDRPHYC_PIR_INIT; + writel(pir, &phy->pir); + debug("[0x%08x] pir = 0x%08x -> 0x%08x\n", + (u32)&phy->pir, pir, readl(&phy->pir)); + + /* need to wait 10 configuration clock before start polling */ + udelay(10); + + /* Wait DRAM initialization and Gate Training Evaluation complete */ + ddrphy_idone_wait(phy); +} + +/* start quasi dynamic register update */ +static void start_sw_done(struct stm32mp1_ddrctl *ctl) +{ + clrbits_le32(&ctl->swctl, DDRCTRL_SWCTL_SW_DONE); +} + +/* wait quasi dynamic register update */ +static void wait_sw_done_ack(struct stm32mp1_ddrctl *ctl) +{ + int ret; + u32 swstat; + + setbits_le32(&ctl->swctl, DDRCTRL_SWCTL_SW_DONE); + + ret = readl_poll_timeout(&ctl->swstat, swstat, + swstat & DDRCTRL_SWSTAT_SW_DONE_ACK, + 1000000); + if (ret) + panic("Timeout initialising DRAM : DDR->swstat = %x\n", + swstat); + + debug("[0x%08x] swstat = 0x%08x\n", (u32)&ctl->swstat, swstat); +} + +/* wait quasi dynamic register update */ +static void wait_operating_mode(struct ddr_info *priv, int mode) +{ + u32 stat, val, mask, val2 = 0, mask2 = 0; + int ret; + + mask = DDRCTRL_STAT_OPERATING_MODE_MASK; + val = mode; + /* self-refresh due to software => check also STAT.selfref_type */ + if (mode == DDRCTRL_STAT_OPERATING_MODE_SR) { + mask |= DDRCTRL_STAT_SELFREF_TYPE_MASK; + stat |= DDRCTRL_STAT_SELFREF_TYPE_SR; + } else if (mode == DDRCTRL_STAT_OPERATING_MODE_NORMAL) { + /* normal mode: handle also automatic self refresh */ + mask2 = DDRCTRL_STAT_OPERATING_MODE_MASK | + DDRCTRL_STAT_SELFREF_TYPE_MASK; + val2 = DDRCTRL_STAT_OPERATING_MODE_SR | + DDRCTRL_STAT_SELFREF_TYPE_ASR; + } + + ret = readl_poll_timeout(&priv->ctl->stat, stat, + ((stat & mask) == val) || + (mask2 && ((stat & mask2) == val2)), + 1000000); + + if (ret) + panic("Timeout DRAM : DDR->stat = %x\n", stat); + + debug("[0x%08x] stat = 0x%08x\n", (u32)&priv->ctl->stat, stat); +} + +void stm32mp1_refresh_disable(struct stm32mp1_ddrctl *ctl) +{ + start_sw_done(ctl); + /* quasi-dynamic register update*/ + setbits_le32(&ctl->rfshctl3, DDRCTRL_RFSHCTL3_DIS_AUTO_REFRESH); + clrbits_le32(&ctl->pwrctl, DDRCTRL_PWRCTL_POWERDOWN_EN); + clrbits_le32(&ctl->dfimisc, DDRCTRL_DFIMISC_DFI_INIT_COMPLETE_EN); + wait_sw_done_ack(ctl); +} + +void stm32mp1_refresh_restore(struct stm32mp1_ddrctl *ctl, + u32 rfshctl3, u32 pwrctl) +{ + start_sw_done(ctl); + if (!(rfshctl3 & DDRCTRL_RFSHCTL3_DIS_AUTO_REFRESH)) + clrbits_le32(&ctl->rfshctl3, DDRCTRL_RFSHCTL3_DIS_AUTO_REFRESH); + if (pwrctl & DDRCTRL_PWRCTL_POWERDOWN_EN) + setbits_le32(&ctl->pwrctl, DDRCTRL_PWRCTL_POWERDOWN_EN); + setbits_le32(&ctl->dfimisc, DDRCTRL_DFIMISC_DFI_INIT_COMPLETE_EN); + wait_sw_done_ack(ctl); +} + +/* board-specific DDR power initializations. */ +__weak int board_ddr_power_init(void) +{ + return 0; +} + +__maybe_unused +void stm32mp1_ddr_init(struct ddr_info *priv, + const struct stm32mp1_ddr_config *config) +{ + u32 pir; + int ret; + + ret = board_ddr_power_init(); + + if (ret) + panic("ddr power init failed\n"); + + debug("name = %s\n", config->info.name); + debug("speed = %d MHz\n", config->info.speed); + debug("size = 0x%x\n", config->info.size); +/* + * 1. Program the DWC_ddr_umctl2 registers + * 1.1 RESETS: presetn, core_ddrc_rstn, aresetn + */ + /* Assert All DDR part */ + setbits_le32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DDRCAPBRST); + setbits_le32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DDRCAXIRST); + setbits_le32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DDRCORERST); + setbits_le32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DPHYAPBRST); + setbits_le32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DPHYRST); + setbits_le32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DPHYCTLRST); + +/* 1.2. start CLOCK */ + if (stm32mp1_ddr_clk_enable(priv, config->info.speed)) + panic("invalid DRAM clock : %d MHz\n", + config->info.speed); + +/* 1.3. deassert reset */ + /* de-assert PHY rstn and ctl_rstn via DPHYRST and DPHYCTLRST */ + clrbits_le32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DPHYRST); + clrbits_le32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DPHYCTLRST); + /* De-assert presetn once the clocks are active + * and stable via DDRCAPBRST bit + */ + clrbits_le32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DDRCAPBRST); + +/* 1.4. wait 4 cycles for synchronization */ + asm(" nop"); + asm(" nop"); + asm(" nop"); + asm(" nop"); + +/* 1.5. initialize registers ddr_umctl2 */ + /* Stop uMCTL2 before PHY is ready */ + clrbits_le32(&priv->ctl->dfimisc, DDRCTRL_DFIMISC_DFI_INIT_COMPLETE_EN); + debug("[0x%08x] dfimisc = 0x%08x\n", + (u32)&priv->ctl->dfimisc, readl(&priv->ctl->dfimisc)); + + set_reg(priv, REG_REG, &config->c_reg); + set_reg(priv, REG_TIMING, &config->c_timing); + set_reg(priv, REG_MAP, &config->c_map); + + /* skip CTRL init, SDRAM init is done by PHY PUBL */ + clrsetbits_le32(&priv->ctl->init0, + DDRCTRL_INIT0_SKIP_DRAM_INIT_MASK, + DDRCTRL_INIT0_SKIP_DRAM_INIT_NORMAL); + + set_reg(priv, REG_PERF, &config->c_perf); + +/* 2. deassert reset signal core_ddrc_rstn, aresetn and presetn */ + clrbits_le32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DDRCORERST); + clrbits_le32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DDRCAXIRST); + clrbits_le32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DPHYAPBRST); + +/* 3. start PHY init by accessing relevant PUBL registers + * (DXGCR, DCR, PTR*, MR*, DTPR*) + */ + set_reg(priv, REGPHY_REG, &config->p_reg); + set_reg(priv, REGPHY_TIMING, &config->p_timing); + set_reg(priv, REGPHY_CAL, &config->p_cal); + +/* 4. Monitor PHY init status by polling PUBL register PGSR.IDONE + * Perform DDR PHY DRAM initialization and Gate Training Evaluation + */ + ddrphy_idone_wait(priv->phy); + +/* 5. Indicate to PUBL that controller performs SDRAM initialization + * by setting PIR.INIT and PIR CTLDINIT and pool PGSR.IDONE + * DRAM init is done by PHY, init0.skip_dram.init = 1 + */ + pir = DDRPHYC_PIR_DLLSRST | DDRPHYC_PIR_DLLLOCK | DDRPHYC_PIR_ZCAL | + DDRPHYC_PIR_ITMSRST | DDRPHYC_PIR_DRAMINIT | DDRPHYC_PIR_ICPC; + + if (config->c_reg.mstr & DDRCTRL_MSTR_DDR3) + pir |= DDRPHYC_PIR_DRAMRST; /* only for DDR3 */ + + stm32mp1_ddrphy_init(priv->phy, pir); + +/* 6. SET DFIMISC.dfi_init_complete_en to 1 */ + /* Enable quasi-dynamic register programming*/ + start_sw_done(priv->ctl); + setbits_le32(&priv->ctl->dfimisc, DDRCTRL_DFIMISC_DFI_INIT_COMPLETE_EN); + wait_sw_done_ack(priv->ctl); + +/* 7. Wait for DWC_ddr_umctl2 to move to normal operation mode + * by monitoring STAT.operating_mode signal + */ + /* wait uMCTL2 ready */ + + wait_operating_mode(priv, DDRCTRL_STAT_OPERATING_MODE_NORMAL); + + debug("DDR DQS training : "); +/* 8. Disable Auto refresh and power down by setting + * - RFSHCTL3.dis_au_refresh = 1 + * - PWRCTL.powerdown_en = 0 + * - DFIMISC.dfiinit_complete_en = 0 + */ + stm32mp1_refresh_disable(priv->ctl); + +/* 9. Program PUBL PGCR to enable refresh during training and rank to train + * not done => keep the programed value in PGCR + */ + +/* 10. configure PUBL PIR register to specify which training step to run */ + /* warning : RVTRN is not supported by this PUBL */ + stm32mp1_ddrphy_init(priv->phy, DDRPHYC_PIR_QSTRN); + +/* 11. monitor PUB PGSR.IDONE to poll cpmpletion of training sequence */ + ddrphy_idone_wait(priv->phy); + +/* 12. set back registers in step 8 to the orginal values if desidered */ + stm32mp1_refresh_restore(priv->ctl, config->c_reg.rfshctl3, + config->c_reg.pwrctl); + + /* enable uMCTL2 AXI port 0 and 1 */ + setbits_le32(&priv->ctl->pctrl_0, DDRCTRL_PCTRL_N_PORT_EN); + setbits_le32(&priv->ctl->pctrl_1, DDRCTRL_PCTRL_N_PORT_EN); +} diff --git a/drivers/ram/stm32mp1/stm32mp1_ddr.h b/drivers/ram/stm32mp1/stm32mp1_ddr.h new file mode 100644 index 0000000..b77d823 --- /dev/null +++ b/drivers/ram/stm32mp1/stm32mp1_ddr.h @@ -0,0 +1,210 @@ +/* + * Copyright (C) 2018, STMicroelectronics - All Rights Reserved + * + * SPDX-License-Identifier: GPL-2.0+ BSD-3-Clause + */ + +#ifndef _RAM_STM32MP1_DDR_H +#define _RAM_STM32MP1_DDR_H + +enum stm32mp1_ddr_interact_step { + STEP_DDR_RESET, + STEP_CTL_INIT, + STEP_PHY_INIT, + STEP_DDR_READY, + STEP_RUN, +}; + +/* DDR CTL and DDR PHY REGISTERS */ +struct stm32mp1_ddrctl; +struct stm32mp1_ddrphy; + +/** + * struct ddr_info + * + * @dev: pointer for the device + * @info: UCLASS RAM information + * @ctl: DDR controleur base address + * @clk: DDR clock + * @phy: DDR PHY base address + * @rcc: rcc base address + */ +struct ddr_info { + struct udevice *dev; + struct ram_info info; + struct clk clk; + struct stm32mp1_ddrctl *ctl; + struct stm32mp1_ddrphy *phy; + u32 rcc; +}; + +struct stm32mp1_ddrctrl_reg { + u32 mstr; + u32 mrctrl0; + u32 mrctrl1; + u32 derateen; + u32 derateint; + u32 pwrctl; + u32 pwrtmg; + u32 hwlpctl; + u32 rfshctl0; + u32 rfshctl3; + u32 crcparctl0; + u32 zqctl0; + u32 dfitmg0; + u32 dfitmg1; + u32 dfilpcfg0; + u32 dfiupd0; + u32 dfiupd1; + u32 dfiupd2; + u32 dfiphymstr; + u32 odtmap; + u32 dbg0; + u32 dbg1; + u32 dbgcmd; + u32 poisoncfg; + u32 pccfg; + +}; + +struct stm32mp1_ddrctrl_timing { + u32 rfshtmg; + u32 dramtmg0; + u32 dramtmg1; + u32 dramtmg2; + u32 dramtmg3; + u32 dramtmg4; + u32 dramtmg5; + u32 dramtmg6; + u32 dramtmg7; + u32 dramtmg8; + u32 dramtmg14; + u32 odtcfg; +}; + +struct stm32mp1_ddrctrl_map { + u32 addrmap1; + u32 addrmap2; + u32 addrmap3; + u32 addrmap4; + u32 addrmap5; + u32 addrmap6; + u32 addrmap9; + u32 addrmap10; + u32 addrmap11; +}; + +struct stm32mp1_ddrctrl_perf { + u32 sched; + u32 sched1; + u32 perfhpr1; + u32 perflpr1; + u32 perfwr1; + u32 pcfgr_0; + u32 pcfgw_0; + u32 pcfgqos0_0; + u32 pcfgqos1_0; + u32 pcfgwqos0_0; + u32 pcfgwqos1_0; + u32 pcfgr_1; + u32 pcfgw_1; + u32 pcfgqos0_1; + u32 pcfgqos1_1; + u32 pcfgwqos0_1; + u32 pcfgwqos1_1; +}; + +struct stm32mp1_ddrphy_reg { + u32 pgcr; + u32 aciocr; + u32 dxccr; + u32 dsgcr; + u32 dcr; + u32 odtcr; + u32 zq0cr1; + u32 dx0gcr; + u32 dx1gcr; + u32 dx2gcr; + u32 dx3gcr; +}; + +struct stm32mp1_ddrphy_timing { + u32 ptr0; + u32 ptr1; + u32 ptr2; + u32 dtpr0; + u32 dtpr1; + u32 dtpr2; + u32 mr0; + u32 mr1; + u32 mr2; + u32 mr3; +}; + +struct stm32mp1_ddrphy_cal { + u32 dx0dllcr; + u32 dx0dqtr; + u32 dx0dqstr; + u32 dx1dllcr; + u32 dx1dqtr; + u32 dx1dqstr; + u32 dx2dllcr; + u32 dx2dqtr; + u32 dx2dqstr; + u32 dx3dllcr; + u32 dx3dqtr; + u32 dx3dqstr; +}; + +struct stm32mp1_ddr_info { + const char *name; + u16 speed; /* in MHZ */ + u32 size; /* memory size in byte = col * row * width */ +}; + +struct stm32mp1_ddr_config { + struct stm32mp1_ddr_info info; + struct stm32mp1_ddrctrl_reg c_reg; + struct stm32mp1_ddrctrl_timing c_timing; + struct stm32mp1_ddrctrl_map c_map; + struct stm32mp1_ddrctrl_perf c_perf; + struct stm32mp1_ddrphy_reg p_reg; + struct stm32mp1_ddrphy_timing p_timing; + struct stm32mp1_ddrphy_cal p_cal; +}; + +int stm32mp1_ddr_clk_enable(struct ddr_info *priv, u16 mem_speed); +void stm32mp1_ddrphy_init(struct stm32mp1_ddrphy *phy, u32 pir); +void stm32mp1_refresh_disable(struct stm32mp1_ddrctl *ctl); +void stm32mp1_refresh_restore(struct stm32mp1_ddrctl *ctl, + u32 rfshctl3, + u32 pwrctl); + +void stm32mp1_ddr_init( + struct ddr_info *priv, + const struct stm32mp1_ddr_config *config); + +int stm32mp1_dump_reg(const struct ddr_info *priv, + const char *name); + +void stm32mp1_edit_reg(const struct ddr_info *priv, + char *name, + char *string); + +int stm32mp1_dump_param(const struct stm32mp1_ddr_config *config, + const char *name); + +void stm32mp1_edit_param(const struct stm32mp1_ddr_config *config, + char *name, + char *string); + +void stm32mp1_dump_info( + const struct ddr_info *priv, + const struct stm32mp1_ddr_config *config); + +bool stm32mp1_ddr_interactive( + void *priv, + enum stm32mp1_ddr_interact_step step, + const struct stm32mp1_ddr_config *config); + +#endif diff --git a/drivers/ram/stm32mp1/stm32mp1_ddr_regs.h b/drivers/ram/stm32mp1/stm32mp1_ddr_regs.h new file mode 100644 index 0000000..82c254b --- /dev/null +++ b/drivers/ram/stm32mp1/stm32mp1_ddr_regs.h @@ -0,0 +1,365 @@ +/* + * Copyright (C) 2018, STMicroelectronics - All Rights Reserved + * + * SPDX-License-Identifier: GPL-2.0+ BSD-3-Clause + */ + +#ifndef _RAM_STM32MP1_DDR_REGS_H +#define _RAM_STM32MP1_DDR_REGS_H + +/* DDR3/LPDDR2/LPDDR3 Controller (DDRCTRL) registers */ +struct stm32mp1_ddrctl { + u32 mstr ; /* 0x0 Master*/ + u32 stat; /* 0x4 Operating Mode Status*/ + u8 reserved008[0x10 - 0x8]; + u32 mrctrl0; /* 0x10 Control 0.*/ + u32 mrctrl1; /* 0x14 Control 1*/ + u32 mrstat; /* 0x18 Status*/ + u32 reserved01c; /* 0x1c */ + u32 derateen; /* 0x20 Temperature Derate Enable*/ + u32 derateint; /* 0x24 Temperature Derate Interval*/ + u8 reserved028[0x30 - 0x28]; + u32 pwrctl; /* 0x30 Low Power Control*/ + u32 pwrtmg; /* 0x34 Low Power Timing*/ + u32 hwlpctl; /* 0x38 Hardware Low Power Control*/ + u8 reserved03c[0x50 - 0x3C]; + u32 rfshctl0; /* 0x50 Refresh Control 0*/ + u32 reserved054; /* 0x54 Refresh Control 1*/ + u32 reserved058; /* 0x58 Refresh Control 2*/ + u32 reserved05C; + u32 rfshctl3; /* 0x60 Refresh Control 0*/ + u32 rfshtmg; /* 0x64 Refresh Timing*/ + u8 reserved068[0xc0 - 0x68]; + u32 crcparctl0; /* 0xc0 CRC Parity Control0*/ + u32 reserved0c4; /* 0xc4 CRC Parity Control1*/ + u32 reserved0c8; /* 0xc8 CRC Parity Control2*/ + u32 crcparstat; /* 0xcc CRC Parity Status*/ + u32 init0; /* 0xd0 SDRAM Initialization 0*/ + u32 init1; /* 0xd4 SDRAM Initialization 1*/ + u32 init2; /* 0xd8 SDRAM Initialization 2*/ + u32 init3; /* 0xdc SDRAM Initialization 3*/ + u32 init4; /* 0xe0 SDRAM Initialization 4*/ + u32 init5; /* 0xe4 SDRAM Initialization 5*/ + u32 reserved0e8; + u32 reserved0ec; + u32 dimmctl; /* 0xf0 DIMM Control*/ + u8 reserved0f4[0x100 - 0xf4]; + u32 dramtmg0; /* 0x100 SDRAM Timing 0*/ + u32 dramtmg1; /* 0x104 SDRAM Timing 1*/ + u32 dramtmg2; /* 0x108 SDRAM Timing 2*/ + u32 dramtmg3; /* 0x10c SDRAM Timing 3*/ + u32 dramtmg4; /* 0x110 SDRAM Timing 4*/ + u32 dramtmg5; /* 0x114 SDRAM Timing 5*/ + u32 dramtmg6; /* 0x118 SDRAM Timing 6*/ + u32 dramtmg7; /* 0x11c SDRAM Timing 7*/ + u32 dramtmg8; /* 0x120 SDRAM Timing 8*/ + u8 reserved124[0x138 - 0x124]; + u32 dramtmg14; /* 0x138 SDRAM Timing 14*/ + u32 dramtmg15; /* 0x13C SDRAM Timing 15*/ + u8 reserved140[0x180 - 0x140]; + u32 zqctl0; /* 0x180 ZQ Control 0*/ + u32 zqctl1; /* 0x184 ZQ Control 1*/ + u32 zqctl2; /* 0x188 ZQ Control 2*/ + u32 zqstat; /* 0x18c ZQ Status*/ + u32 dfitmg0; /* 0x190 DFI Timing 0*/ + u32 dfitmg1; /* 0x194 DFI Timing 1*/ + u32 dfilpcfg0; /* 0x198 DFI Low Power Configuration 0*/ + u32 reserved19c; + u32 dfiupd0; /* 0x1a0 DFI Update 0*/ + u32 dfiupd1; /* 0x1a4 DFI Update 1*/ + u32 dfiupd2; /* 0x1a8 DFI Update 2*/ + u32 reserved1ac; + u32 dfimisc; /* 0x1b0 DFI Miscellaneous Control*/ + u8 reserved1b4[0x1bc - 0x1b4]; + u32 dfistat; /* 0x1bc DFI Miscellaneous Control*/ + u8 reserved1c0[0x1c4 - 0x1c0]; + u32 dfiphymstr; /* 0x1c4 DFI PHY Master interface*/ + u8 reserved1c8[0x204 - 0x1c8]; + u32 addrmap1; /* 0x204 Address Map 1*/ + u32 addrmap2; /* 0x208 Address Map 2*/ + u32 addrmap3; /* 0x20c Address Map 3*/ + u32 addrmap4; /* 0x210 Address Map 4*/ + u32 addrmap5; /* 0x214 Address Map 5*/ + u32 addrmap6; /* 0x218 Address Map 6*/ + u8 reserved21c[0x224 - 0x21c]; + u32 addrmap9; /* 0x224 Address Map 9*/ + u32 addrmap10; /* 0x228 Address Map 10*/ + u32 addrmap11; /* 0x22C Address Map 11*/ + u8 reserved230[0x240 - 0x230]; + u32 odtcfg; /* 0x240 ODT Configuration*/ + u32 odtmap; /* 0x244 ODT/Rank Map*/ + u8 reserved248[0x250 - 0x248]; + u32 sched; /* 0x250 Scheduler Control*/ + u32 sched1; /* 0x254 Scheduler Control 1*/ + u32 reserved258; + u32 perfhpr1; /* 0x25c High Priority Read CAM 1*/ + u32 reserved260; + u32 perflpr1; /* 0x264 Low Priority Read CAM 1*/ + u32 reserved268; + u32 perfwr1; /* 0x26c Write CAM 1*/ + u8 reserved27c[0x300 - 0x270]; + u32 dbg0; /* 0x300 Debug 0*/ + u32 dbg1; /* 0x304 Debug 1*/ + u32 dbgcam; /* 0x308 CAM Debug*/ + u32 dbgcmd; /* 0x30c Command Debug*/ + u32 dbgstat; /* 0x310 Status Debug*/ + u8 reserved314[0x320 - 0x314]; + u32 swctl; /* 0x320 Software Programming Control Enable*/ + u32 swstat; /* 0x324 Software Programming Control Status*/ + u8 reserved328[0x36c - 0x328]; + u32 poisoncfg; /* 0x36c AXI Poison Configuration Register*/ + u32 poisonstat; /* 0x370 AXI Poison Status Register*/ + u8 reserved374[0x3fc - 0x374]; + + /* Multi Port registers */ + u32 pstat; /* 0x3fc Port Status*/ + u32 pccfg; /* 0x400 Port Common Configuration*/ + + /* PORT 0 */ + u32 pcfgr_0; /* 0x404 Configuration Read*/ + u32 pcfgw_0; /* 0x408 Configuration Write*/ + u8 reserved40c[0x490 - 0x40c]; + u32 pctrl_0; /* 0x490 Port Control Register */ + u32 pcfgqos0_0; /* 0x494 Read QoS Configuration 0*/ + u32 pcfgqos1_0; /* 0x498 Read QoS Configuration 1*/ + u32 pcfgwqos0_0; /* 0x49c Write QoS Configuration 0*/ + u32 pcfgwqos1_0; /* 0x4a0 Write QoS Configuration 1*/ + u8 reserved4a4[0x4b4 - 0x4a4]; + + /* PORT 1 */ + u32 pcfgr_1; /* 0x4b4 Configuration Read*/ + u32 pcfgw_1; /* 0x4b8 Configuration Write*/ + u8 reserved4bc[0x540 - 0x4bc]; + u32 pctrl_1; /* 0x540 Port 2 Control Register */ + u32 pcfgqos0_1; /* 0x544 Read QoS Configuration 0*/ + u32 pcfgqos1_1; /* 0x548 Read QoS Configuration 1*/ + u32 pcfgwqos0_1; /* 0x54c Write QoS Configuration 0*/ + u32 pcfgwqos1_1; /* 0x550 Write QoS Configuration 1*/ +}; + +/* DDR Physical Interface Control (DDRPHYC) registers*/ +struct stm32mp1_ddrphy { + u32 ridr; /* 0x00 R Revision Identification*/ + u32 pir; /* 0x04 R/W PHY Initialization*/ + u32 pgcr; /* 0x08 R/W PHY General Configuration*/ + u32 pgsr; /* 0x0C PHY General Status*/ + u32 dllgcr; /* 0x10 R/W DLL General Control*/ + u32 acdllcr; /* 0x14 R/W AC DLL Control*/ + u32 ptr0; /* 0x18 R/W PHY Timing 0*/ + u32 ptr1; /* 0x1C R/W PHY Timing 1*/ + u32 ptr2; /* 0x20 R/W PHY Timing 2*/ + u32 aciocr; /* 0x24 AC I/O Configuration*/ + u32 dxccr; /* 0x28 DATX8 Common Configuration*/ + u32 dsgcr; /* 0x2C DDR System General Configuration*/ + u32 dcr; /* 0x30 DRAM Configuration*/ + u32 dtpr0; /* 0x34 DRAM Timing Parameters0*/ + u32 dtpr1; /* 0x38 DRAM Timing Parameters1*/ + u32 dtpr2; /* 0x3C DRAM Timing Parameters2*/ + u32 mr0; /* 0x40 Mode 0*/ + u32 mr1; /* 0x44 Mode 1*/ + u32 mr2; /* 0x48 Mode 2*/ + u32 mr3; /* 0x4C Mode 3*/ + u32 odtcr; /* 0x50 ODT Configuration*/ + u32 dtar; /* 0x54 data training address*/ + u32 dtdr0; /* 0x58 */ + u32 dtdr1; /* 0x5c */ + u8 res1[0x0c0 - 0x060]; /* 0x60 */ + u32 dcuar; /* 0xc0 Address*/ + u32 dcudr; /* 0xc4 DCU Data*/ + u32 dcurr; /* 0xc8 DCU Run*/ + u32 dculr; /* 0xcc DCU Loop*/ + u32 dcugcr; /* 0xd0 DCU General Configuration*/ + u32 dcutpr; /* 0xd4 DCU Timing Parameters */ + u32 dcusr0; /* 0xd8 DCU Status 0*/ + u32 dcusr1; /* 0xdc DCU Status 1*/ + u8 res2[0x100 - 0xe0]; /* 0xe0 */ + u32 bistrr; /* 0x100 BIST Run*/ + u32 bistmskr0; /* 0x104 BIST Mask 0*/ + u32 bistmskr1; /* 0x108 BIST Mask 0*/ + u32 bistwcr; /* 0x10c BIST Word Count*/ + u32 bistlsr; /* 0x110 BIST LFSR Seed*/ + u32 bistar0; /* 0x114 BIST Address 0*/ + u32 bistar1; /* 0x118 BIST Address 1*/ + u32 bistar2; /* 0x11c BIST Address 2*/ + u32 bistupdr; /* 0x120 BIST User Data Pattern*/ + u32 bistgsr; /* 0x124 BIST General Status*/ + u32 bistwer; /* 0x128 BIST Word Error*/ + u32 bistber0; /* 0x12c BIST Bit Error 0*/ + u32 bistber1; /* 0x130 BIST Bit Error 1*/ + u32 bistber2; /* 0x134 BIST Bit Error 2*/ + u32 bistwcsr; /* 0x138 BIST Word Count Status*/ + u32 bistfwr0; /* 0x13c BIST Fail Word 0*/ + u32 bistfwr1; /* 0x140 BIST Fail Word 1*/ + u8 res3[0x178 - 0x144]; /* 0x144 */ + u32 gpr0; /* 0x178 General Purpose 0 (GPR0)*/ + u32 gpr1; /* 0x17C General Purpose 1 (GPR1)*/ + u32 zq0cr0; /* 0x180 zq 0 control 0 */ + u32 zq0cr1; /* 0x184 zq 0 control 1 */ + u32 zq0sr0; /* 0x188 zq 0 status 0 */ + u32 zq0sr1; /* 0x18C zq 0 status 1 */ + u8 res4[0x1C0 - 0x190]; /* 0x190 */ + u32 dx0gcr; /* 0x1c0 Byte lane 0 General Configuration*/ + u32 dx0gsr0; /* 0x1c4 Byte lane 0 General Status 0*/ + u32 dx0gsr1; /* 0x1c8 Byte lane 0 General Status 1*/ + u32 dx0dllcr; /* 0x1cc Byte lane 0 DLL Control*/ + u32 dx0dqtr; /* 0x1d0 Byte lane 0 DQ Timing*/ + u32 dx0dqstr; /* 0x1d4 Byte lane 0 DQS Timing*/ + u8 res5[0x200 - 0x1d8]; /* 0x1d8 */ + u32 dx1gcr; /* 0x200 Byte lane 1 General Configuration*/ + u32 dx1gsr0; /* 0x204 Byte lane 1 General Status 0*/ + u32 dx1gsr1; /* 0x208 Byte lane 1 General Status 1*/ + u32 dx1dllcr; /* 0x20c Byte lane 1 DLL Control*/ + u32 dx1dqtr; /* 0x210 Byte lane 1 DQ Timing*/ + u32 dx1dqstr; /* 0x214 Byte lane 1 QS Timing*/ + u8 res6[0x240 - 0x218]; /* 0x218 */ + u32 dx2gcr; /* 0x240 Byte lane 2 General Configuration*/ + u32 dx2gsr0; /* 0x244 Byte lane 2 General Status 0*/ + u32 dx2gsr1; /* 0x248 Byte lane 2 General Status 1*/ + u32 dx2dllcr; /* 0x24c Byte lane 2 DLL Control*/ + u32 dx2dqtr; /* 0x250 Byte lane 2 DQ Timing*/ + u32 dx2dqstr; /* 0x254 Byte lane 2 QS Timing*/ + u8 res7[0x280 - 0x258]; /* 0x258 */ + u32 dx3gcr; /* 0x280 Byte lane 3 General Configuration*/ + u32 dx3gsr0; /* 0x284 Byte lane 3 General Status 0*/ + u32 dx3gsr1; /* 0x288 Byte lane 3 General Status 1*/ + u32 dx3dllcr; /* 0x28c Byte lane 3 DLL Control*/ + u32 dx3dqtr; /* 0x290 Byte lane 3 DQ Timing*/ + u32 dx3dqstr; /* 0x294 Byte lane 3 QS Timing*/ +}; + +#define DXN(phy, offset, byte) ((u32)(phy) + (offset) + ((u32)(byte) * 0x40)) +#define DXNGCR(phy, byte) DXN(phy, 0x1c0, byte) +#define DXNDLLCR(phy, byte) DXN(phy, 0x1cc, byte) +#define DXNDQTR(phy, byte) DXN(phy, 0x1d0, byte) +#define DXNDQSTR(phy, byte) DXN(phy, 0x1d4, byte) + +/* DDRCTRL REGISTERS */ +#define DDRCTRL_MSTR_DDR3 BIT(0) +#define DDRCTRL_MSTR_DATA_BUS_WIDTH_MASK GENMASK(13, 12) +#define DDRCTRL_MSTR_DATA_BUS_WIDTH_FULL (0 << 12) +#define DDRCTRL_MSTR_DATA_BUS_WIDTH_HALF (1 << 12) +#define DDRCTRL_MSTR_DATA_BUS_WIDTH_QUARTER (2 << 12) +#define DDRCTRL_MSTR_DLL_OFF_MODE BIT(15) + +#define DDRCTRL_STAT_OPERATING_MODE_MASK GENMASK(2, 0) +#define DDRCTRL_STAT_OPERATING_MODE_NORMAL 1 +#define DDRCTRL_STAT_OPERATING_MODE_SR 3 +#define DDRCTRL_STAT_SELFREF_TYPE_MASK GENMASK(5, 4) +#define DDRCTRL_STAT_SELFREF_TYPE_ASR (3 << 4) +#define DDRCTRL_STAT_SELFREF_TYPE_SR (2 << 4) + +#define DDRCTRL_MRCTRL0_MR_TYPE_WRITE 0 +/* only one rank supported */ +#define DDRCTRL_MRCTRL0_MR_RANK_SHIFT 4 +#define DDRCTRL_MRCTRL0_MR_RANK_ALL \ + (0x1 << DDRCTRL_MRCTRL0_MR_RANK_SHIFT) +#define DDRCTRL_MRCTRL0_MR_ADDR_SHIFT 12 +#define DDRCTRL_MRCTRL0_MR_ADDR_MASK GENMASK(15, 12) +#define DDRCTRL_MRCTRL0_MR_WR BIT(31) + +#define DDRCTRL_MRSTAT_MR_WR_BUSY BIT(0) + +#define DDRCTRL_PWRCTL_POWERDOWN_EN BIT(1) +#define DDRCTRL_PWRCTL_SELFREF_SW BIT(5) + +#define DDRCTRL_RFSHCTL3_DIS_AUTO_REFRESH BIT(0) + +#define DDRCTRL_RFSHTMG_T_RFC_NOM_X1_X32_MASK GENMASK(27, 16) +#define DDRCTRL_RFSHTMG_T_RFC_NOM_X1_X32_SHIFT 16 + +#define DDRCTRL_INIT0_SKIP_DRAM_INIT_MASK (0xC0000000) +#define DDRCTRL_INIT0_SKIP_DRAM_INIT_NORMAL (BIT(30)) + +#define DDRCTRL_DFIMISC_DFI_INIT_COMPLETE_EN BIT(0) + +#define DDRCTRL_DBG1_DIS_HIF BIT(1) + +#define DDRCTRL_DBGCAM_WR_DATA_PIPELINE_EMPTY BIT(29) +#define DDRCTRL_DBGCAM_RD_DATA_PIPELINE_EMPTY BIT(28) +#define DDRCTRL_DBGCAM_DBG_WR_Q_EMPTY BIT(26) +#define DDRCTRL_DBGCAM_DBG_LPR_Q_DEPTH GENMASK(12, 8) +#define DDRCTRL_DBGCAM_DBG_HPR_Q_DEPTH GENMASK(4, 0) +#define DDRCTRL_DBGCAM_DATA_PIPELINE_EMPTY \ + (DDRCTRL_DBGCAM_WR_DATA_PIPELINE_EMPTY | \ + DDRCTRL_DBGCAM_RD_DATA_PIPELINE_EMPTY) +#define DDRCTRL_DBGCAM_DBG_Q_DEPTH \ + (DDRCTRL_DBGCAM_DBG_WR_Q_EMPTY | \ + DDRCTRL_DBGCAM_DBG_LPR_Q_DEPTH | \ + DDRCTRL_DBGCAM_DBG_HPR_Q_DEPTH) + +#define DDRCTRL_DBGCMD_RANK0_REFRESH BIT(0) + +#define DDRCTRL_DBGSTAT_RANK0_REFRESH_BUSY BIT(0) + +#define DDRCTRL_SWCTL_SW_DONE BIT(0) + +#define DDRCTRL_SWSTAT_SW_DONE_ACK BIT(0) + +#define DDRCTRL_PCTRL_N_PORT_EN BIT(0) + +/* DDRPHYC registers */ +#define DDRPHYC_PIR_INIT BIT(0) +#define DDRPHYC_PIR_DLLSRST BIT(1) +#define DDRPHYC_PIR_DLLLOCK BIT(2) +#define DDRPHYC_PIR_ZCAL BIT(3) +#define DDRPHYC_PIR_ITMSRST BIT(4) +#define DDRPHYC_PIR_DRAMRST BIT(5) +#define DDRPHYC_PIR_DRAMINIT BIT(6) +#define DDRPHYC_PIR_QSTRN BIT(7) +#define DDRPHYC_PIR_ICPC BIT(16) +#define DDRPHYC_PIR_ZCALBYP BIT(30) +#define DDRPHYC_PIR_INITSTEPS_MASK GENMASK(31, 7) + +#define DDRPHYC_PGCR_DFTCMP BIT(2) +#define DDRPHYC_PGCR_PDDISDX BIT(24) +#define DDRPHYC_PGCR_RFSHDT_MASK GENMASK(28, 25) + +#define DDRPHYC_PGSR_IDONE BIT(0) +#define DDRPHYC_PGSR_DTERR BIT(5) +#define DDRPHYC_PGSR_DTIERR BIT(6) +#define DDRPHYC_PGSR_DFTERR BIT(7) +#define DDRPHYC_PGSR_RVERR BIT(8) +#define DDRPHYC_PGSR_RVEIRR BIT(9) + +#define DDRPHYC_DLLGCR_BPS200 BIT(23) + +#define DDRPHYC_ACDLLCR_DLLDIS BIT(31) + +#define DDRPHYC_ZQ0CRN_ZDATA_MASK GENMASK(27, 0) +#define DDRPHYC_ZQ0CRN_ZDATA_SHIFT 0 +#define DDRPHYC_ZQ0CRN_ZDEN BIT(28) + +#define DDRPHYC_DXNGCR_DXEN BIT(0) + +#define DDRPHYC_DXNDLLCR_DLLDIS BIT(31) +#define DDRPHYC_DXNDLLCR_SDPHASE_MASK GENMASK(17, 14) +#define DDRPHYC_DXNDLLCR_SDPHASE_SHIFT 14 + +#define DDRPHYC_DXNDQTR_DQDLY_SHIFT(bit) (4 * (bit)) +#define DDRPHYC_DXNDQTR_DQDLY_MASK GENMASK(3, 0) +#define DDRPHYC_DXNDQTR_DQDLY_LOW_MASK GENMASK(1, 0) +#define DDRPHYC_DXNDQTR_DQDLY_HIGH_MASK GENMASK(3, 2) + +#define DDRPHYC_DXNDQSTR_DQSDLY_MASK GENMASK(22, 20) +#define DDRPHYC_DXNDQSTR_DQSDLY_SHIFT 20 +#define DDRPHYC_DXNDQSTR_DQSNDLY_MASK GENMASK(25, 23) +#define DDRPHYC_DXNDQSTR_DQSNDLY_SHIFT 23 +#define DDRPHYC_DXNDQSTR_R0DGSL_MASK GENMASK(2, 0) +#define DDRPHYC_DXNDQSTR_R0DGSL_SHIFT 0 +#define DDRPHYC_DXNDQSTR_R0DGPS_MASK GENMASK(13, 12) +#define DDRPHYC_DXNDQSTR_R0DGPS_SHIFT 12 + +#define DDRPHYC_BISTRR_BDXSEL_MASK GENMASK(22, 19) +#define DDRPHYC_BISTRR_BDXSEL_SHIFT 19 + +#define DDRPHYC_BISTGSR_BDDONE BIT(0) +#define DDRPHYC_BISTGSR_BDXERR BIT(2) + +#define DDRPHYC_BISTWCSR_DXWCNT_SHIFT 16 + +/* PWR registers */ +#define PWR_CR3 0x00C +#define PWR_CR3_DDRSRDIS BIT(11) +#define PWR_CR3_DDRRETEN BIT(12) + +#endif diff --git a/drivers/ram/stm32mp1/stm32mp1_ram.c b/drivers/ram/stm32mp1/stm32mp1_ram.c new file mode 100644 index 0000000..9599444 --- /dev/null +++ b/drivers/ram/stm32mp1/stm32mp1_ram.c @@ -0,0 +1,197 @@ +/* + * Copyright (C) 2018, STMicroelectronics - All Rights Reserved + * + * SPDX-License-Identifier: GPL-2.0+ BSD-3-Clause + */ + +#include <common.h> +#include <clk.h> +#include <dm.h> +#include <ram.h> +#include <regmap.h> +#include <syscon.h> +#include <asm/io.h> +#include "stm32mp1_ddr.h" + +DECLARE_GLOBAL_DATA_PTR; + +static const char *const clkname[] = { + "ddrc1", + "ddrc2", + "ddrcapb", + "ddrphycapb", + "ddrphyc" /* LAST clock => used for get_rate() */ +}; + +int stm32mp1_ddr_clk_enable(struct ddr_info *priv, uint16_t mem_speed) +{ + unsigned long ddrphy_clk; + unsigned long ddr_clk; + struct clk clk; + int ret; + int idx; + + for (idx = 0; idx < ARRAY_SIZE(clkname); idx++) { + ret = clk_get_by_name(priv->dev, clkname[idx], &clk); + + if (!ret) + ret = clk_enable(&clk); + + if (ret) { + printf("error for %s : %d\n", clkname[idx], ret); + return ret; + } + } + + priv->clk = clk; + ddrphy_clk = clk_get_rate(&priv->clk); + + debug("DDR: mem_speed (%d MHz), RCC %d MHz\n", + mem_speed, (u32)(ddrphy_clk / 1000 / 1000)); + /* max 10% frequency delta */ + ddr_clk = abs(ddrphy_clk - mem_speed * 1000 * 1000); + if (ddr_clk > (mem_speed * 1000 * 100)) { + pr_err("DDR expected freq %d MHz, current is %d MHz\n", + mem_speed, (u32)(ddrphy_clk / 1000 / 1000)); + return -EINVAL; + } + + return 0; +} + +static __maybe_unused int stm32mp1_ddr_setup(struct udevice *dev) +{ + struct ddr_info *priv = dev_get_priv(dev); + int ret, idx; + struct clk axidcg; + struct stm32mp1_ddr_config config; + +#define PARAM(x, y) \ + { x,\ + offsetof(struct stm32mp1_ddr_config, y),\ + sizeof(config.y) / sizeof(u32)} + +#define CTL_PARAM(x) PARAM("st,ctl-"#x, c_##x) +#define PHY_PARAM(x) PARAM("st,phy-"#x, p_##x) + + const struct { + const char *name; /* name in DT */ + const u32 offset; /* offset in config struct */ + const u32 size; /* size of parameters */ + } param[] = { + CTL_PARAM(reg), + CTL_PARAM(timing), + CTL_PARAM(map), + CTL_PARAM(perf), + PHY_PARAM(reg), + PHY_PARAM(timing), + PHY_PARAM(cal) + }; + + config.info.speed = dev_read_u32_default(dev, "st,mem-speed", 0); + config.info.size = dev_read_u32_default(dev, "st,mem-size", 0); + config.info.name = dev_read_string(dev, "st,mem-name"); + if (!config.info.name) { + debug("%s: no st,mem-name\n", __func__); + return -EINVAL; + } + printf("RAM: %s\n", config.info.name); + + for (idx = 0; idx < ARRAY_SIZE(param); idx++) { + ret = dev_read_u32_array(dev, param[idx].name, + (void *)((u32)&config + + param[idx].offset), + param[idx].size); + debug("%s: %s[0x%x] = %d\n", __func__, + param[idx].name, param[idx].size, ret); + if (ret) { + pr_err("%s: Cannot read %s\n", + __func__, param[idx].name); + return -EINVAL; + } + } + + ret = clk_get_by_name(dev, "axidcg", &axidcg); + if (ret) { + debug("%s: Cannot found axidcg\n", __func__); + return -EINVAL; + } + clk_disable(&axidcg); /* disable clock gating during init */ + + stm32mp1_ddr_init(priv, &config); + + clk_enable(&axidcg); /* enable clock gating */ + + /* check size */ + debug("%s : get_ram_size(%x, %x)\n", __func__, + (u32)priv->info.base, (u32)STM32_DDR_SIZE); + + priv->info.size = get_ram_size((long *)priv->info.base, + STM32_DDR_SIZE); + + debug("%s : %x\n", __func__, (u32)priv->info.size); + + /* check memory access for all memory */ + if (config.info.size != priv->info.size) { + printf("DDR invalid size : 0x%x, expected 0x%x\n", + priv->info.size, config.info.size); + return -EINVAL; + } + return 0; +} + +static int stm32mp1_ddr_probe(struct udevice *dev) +{ + struct ddr_info *priv = dev_get_priv(dev); + struct regmap *map; + int ret; + + debug("STM32MP1 DDR probe\n"); + priv->dev = dev; + + ret = regmap_init_mem(dev, &map); + if (ret) + return ret; + + priv->ctl = regmap_get_range(map, 0); + priv->phy = regmap_get_range(map, 1); + + priv->rcc = STM32_RCC_BASE; + + priv->info.base = STM32_DDR_BASE; + +#if !defined(CONFIG_SPL) || defined(CONFIG_SPL_BUILD) + priv->info.size = 0; + return stm32mp1_ddr_setup(dev); +#else + priv->info.size = dev_read_u32_default(dev, "st,mem-size", 0); + return 0; +#endif +} + +static int stm32mp1_ddr_get_info(struct udevice *dev, struct ram_info *info) +{ + struct ddr_info *priv = dev_get_priv(dev); + + *info = priv->info; + + return 0; +} + +static struct ram_ops stm32mp1_ddr_ops = { + .get_info = stm32mp1_ddr_get_info, +}; + +static const struct udevice_id stm32mp1_ddr_ids[] = { + { .compatible = "st,stm32mp1-ddr" }, + { } +}; + +U_BOOT_DRIVER(ddr_stm32mp1) = { + .name = "stm32mp1_ddr", + .id = UCLASS_RAM, + .of_match = stm32mp1_ddr_ids, + .ops = &stm32mp1_ddr_ops, + .probe = stm32mp1_ddr_probe, + .priv_auto_alloc_size = sizeof(struct ddr_info), +};