@@ -196,6 +196,7 @@ 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>
new file mode 100644
@@ -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
new file mode 100644
@@ -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";
+ };
+ };
+};
@@ -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"
@@ -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
new file mode 100644
@@ -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)
new file mode 100644
@@ -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
new file mode 100644
@@ -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);
+}
new file mode 100644
@@ -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
new file mode 100644
@@ -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
new file mode 100644
@@ -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),
+};
Add driver and binding for stm32mp1 ddr controller and phy Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> --- Changes in v2: None 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