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stm32mp1: Add DDR support and its security with TZC400

Browse source 
The DDR driver is under dual license, BSD and GPLv2.
The configuration parameters are taken from device tree.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
This commit is contained in:
Yann Gautier 2018-07-24 17:18:19 +02:00
parent e4f559ff54
commit 10a511ceaa
14 changed files with 1960 additions and 1 deletions

895
drivers/st/ddr/stm32mp1_ddr.c Normal file
View file

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/*
* Copyright (C) 2018, STMicroelectronics - All Rights Reserved
*
* SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
*/
#include <arch.h>
#include <arch_helpers.h>
#include <debug.h>
#include <delay_timer.h>
#include <dt-bindings/clock/stm32mp1-clks.h>
#include <mmio.h>
#include <platform.h>
#include <stddef.h>
#include <stm32mp1_clk.h>
#include <stm32mp1_ddr.h>
#include <stm32mp1_ddr_regs.h>
#include <stm32mp1_dt.h>
#include <stm32mp1_pmic.h>
#include <stm32mp1_pwr.h>
#include <stm32mp1_ram.h>
#include <stm32mp1_rcc.h>
struct reg_desc {
const char *name;
uint16_t offset; /* Offset for base address */
uint8_t par_offset; /* Offset for parameter array */
};
#define INVALID_OFFSET 0xFFU
#define TIMESLOT_1US (plat_get_syscnt_freq2() / 1000000U)
#define DDRCTL_REG(x, y) \
{ \
.name = #x, \
.offset = offsetof(struct stm32mp1_ddrctl, x), \
.par_offset = offsetof(struct y, x) \
}
#define DDRPHY_REG(x, y) \
{ \
.name = #x, \
.offset = offsetof(struct stm32mp1_ddrphy, x), \
.par_offset = 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),
};
#define DDR_REG_DYN(x) \
{ \
.name = #x, \
.offset = offsetof(struct stm32mp1_ddrctl, x), \
.par_offset = INVALID_OFFSET \
}
static const struct reg_desc ddr_dyn[] = {
DDR_REG_DYN(stat),
DDR_REG_DYN(init0),
DDR_REG_DYN(dfimisc),
DDR_REG_DYN(dfistat),
DDR_REG_DYN(swctl),
DDR_REG_DYN(swstat),
DDR_REG_DYN(pctrl_0),
DDR_REG_DYN(pctrl_1),
};
#define DDRPHY_REG_DYN(x) \
{ \
.name = #x, \
.offset = offsetof(struct stm32mp1_ddrphy, x), \
.par_offset = INVALID_OFFSET \
}
static const struct reg_desc ddrphy_dyn[] = {
DDRPHY_REG_DYN(pir),
DDRPHY_REG_DYN(pgsr),
};
enum reg_type {
REG_REG,
REG_TIMING,
REG_PERF,
REG_MAP,
REGPHY_REG,
REGPHY_TIMING,
REGPHY_CAL,
/*
* Dynamic registers => managed in driver or not changed,
* can be dumped in interactive mode.
*/
REG_DYN,
REGPHY_DYN,
REG_TYPE_NB
};
enum base_type {
DDR_BASE,
DDRPHY_BASE,
NONE_BASE
};
struct ddr_reg_info {
const char *name;
const struct reg_desc *desc;
uint8_t size;
enum base_type base;
};
static 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
},
[REG_DYN] = {
"dyn", ddr_dyn, ARRAY_SIZE(ddr_dyn), DDR_BASE
},
[REGPHY_DYN] = {
"dyn", ddrphy_dyn, ARRAY_SIZE(ddrphy_dyn), DDRPHY_BASE
},
};
static uint32_t get_base_addr(const struct ddr_info *priv, enum base_type base)
{
if (base == DDRPHY_BASE) {
return (uint32_t)priv->phy;
} else {
return (uint32_t)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;
uint32_t base_addr = get_base_addr(priv, base);
const struct reg_desc *desc = ddr_registers[type].desc;
VERBOSE("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) {
ERROR("invalid parameter offset for %s", desc[i].name);
panic();
} else {
value = *((uint32_t *)((uint32_t)param +
desc[i].par_offset));
mmio_write_32((uint32_t)ptr, value);
}
}
}
static void stm32mp1_ddrphy_idone_wait(struct stm32mp1_ddrphy *phy)
{
uint32_t pgsr;
int error = 0;
unsigned long start;
unsigned long time0, time;
start = get_timer(0);
time0 = start;
do {
pgsr = mmio_read_32((uint32_t)&phy->pgsr);
time = get_timer(start);
if (time != time0) {
VERBOSE(" > [0x%x] pgsr = 0x%x &\n",
(uint32_t)&phy->pgsr, pgsr);
VERBOSE(" [0x%x] pir = 0x%x (time=%x)\n",
(uint32_t)&phy->pir,
mmio_read_32((uint32_t)&phy->pir),
(uint32_t)time);
}
time0 = time;
if (time > plat_get_syscnt_freq2()) {
panic();
}
if ((pgsr & DDRPHYC_PGSR_DTERR) != 0U) {
VERBOSE("DQS Gate Trainig Error\n");
error++;
}
if ((pgsr & DDRPHYC_PGSR_DTIERR) != 0U) {
VERBOSE("DQS Gate Trainig Intermittent Error\n");
error++;
}
if ((pgsr & DDRPHYC_PGSR_DFTERR) != 0U) {
VERBOSE("DQS Drift Error\n");
error++;
}
if ((pgsr & DDRPHYC_PGSR_RVERR) != 0U) {
VERBOSE("Read Valid Training Error\n");
error++;
}
if ((pgsr & DDRPHYC_PGSR_RVEIRR) != 0U) {
VERBOSE("Read Valid Training Intermittent Error\n");
error++;
}
} while ((pgsr & DDRPHYC_PGSR_IDONE) == 0U && error == 0);
VERBOSE("\n[0x%x] pgsr = 0x%x\n",
(uint32_t)&phy->pgsr, pgsr);
}
static void stm32mp1_ddrphy_init(struct stm32mp1_ddrphy *phy, uint32_t pir)
{
uint32_t pir_init = pir | DDRPHYC_PIR_INIT;
mmio_write_32((uint32_t)&phy->pir, pir_init);
VERBOSE("[0x%x] pir = 0x%x -> 0x%x\n",
(uint32_t)&phy->pir, pir_init,
mmio_read_32((uint32_t)&phy->pir));
/* Need to wait 10 configuration clock before start polling */
udelay(10);
/* Wait DRAM initialization and Gate Training Evaluation complete */
stm32mp1_ddrphy_idone_wait(phy);
}
/* Start quasi dynamic register update */
static void stm32mp1_start_sw_done(struct stm32mp1_ddrctl *ctl)
{
mmio_clrbits_32((uint32_t)&ctl->swctl, DDRCTRL_SWCTL_SW_DONE);
VERBOSE("[0x%x] swctl = 0x%x\n",
(uint32_t)&ctl->swctl, mmio_read_32((uint32_t)&ctl->swctl));
}
/* Wait quasi dynamic register update */
static void stm32mp1_wait_sw_done_ack(struct stm32mp1_ddrctl *ctl)
{
unsigned long start;
uint32_t swstat;
mmio_setbits_32((uint32_t)&ctl->swctl, DDRCTRL_SWCTL_SW_DONE);
VERBOSE("[0x%x] swctl = 0x%x\n",
(uint32_t)&ctl->swctl, mmio_read_32((uint32_t)&ctl->swctl));
start = get_timer(0);
do {
swstat = mmio_read_32((uint32_t)&ctl->swstat);
VERBOSE("[0x%x] swstat = 0x%x ",
(uint32_t)&ctl->swstat, swstat);
VERBOSE("timer in ms 0x%x = start 0x%lx\r",
get_timer(0), start);
if (get_timer(start) > plat_get_syscnt_freq2()) {
panic();
}
} while ((swstat & DDRCTRL_SWSTAT_SW_DONE_ACK) == 0U);
VERBOSE("[0x%x] swstat = 0x%x\n",
(uint32_t)&ctl->swstat, swstat);
}
/* Wait quasi dynamic register update */
static void stm32mp1_wait_operating_mode(struct ddr_info *priv, uint32_t mode)
{
unsigned long start;
uint32_t stat;
uint32_t operating_mode;
uint32_t selref_type;
int break_loop = 0;
start = get_timer(0);
for ( ; ; ) {
stat = mmio_read_32((uint32_t)&priv->ctl->stat);
operating_mode = stat & DDRCTRL_STAT_OPERATING_MODE_MASK;
selref_type = stat & DDRCTRL_STAT_SELFREF_TYPE_MASK;
VERBOSE("[0x%x] stat = 0x%x\n",
(uint32_t)&priv->ctl->stat, stat);
VERBOSE("timer in ms 0x%x = start 0x%lx\r",
get_timer(0), start);
if (get_timer(start) > plat_get_syscnt_freq2()) {
panic();
}
if (mode == DDRCTRL_STAT_OPERATING_MODE_SR) {
/*
* Self-refresh due to software
* => checking also STAT.selfref_type.
*/
if ((operating_mode ==
DDRCTRL_STAT_OPERATING_MODE_SR) &&
(selref_type == DDRCTRL_STAT_SELFREF_TYPE_SR)) {
break_loop = 1;
}
} else if (operating_mode == mode) {
break_loop = 1;
} else if ((mode == DDRCTRL_STAT_OPERATING_MODE_NORMAL) &&
(operating_mode == DDRCTRL_STAT_OPERATING_MODE_SR) &&
(selref_type == DDRCTRL_STAT_SELFREF_TYPE_ASR)) {
/* Normal mode: handle also automatic self refresh */
break_loop = 1;
}
if (break_loop == 1) {
break;
}
}
VERBOSE("[0x%x] stat = 0x%x\n",
(uint32_t)&priv->ctl->stat, stat);
}
/* Mode Register Writes (MRW or MRS) */
static void stm32mp1_mode_register_write(struct ddr_info *priv, uint8_t addr,
uint32_t data)
{
uint32_t mrctrl0;
VERBOSE("MRS: %d = %x\n", addr, data);
/*
* 1. Poll MRSTAT.mr_wr_busy until it is '0'.
* This checks that there is no outstanding MR transaction.
* No write should be performed to MRCTRL0 and MRCTRL1
* if MRSTAT.mr_wr_busy = 1.
*/
while ((mmio_read_32((uint32_t)&priv->ctl->mrstat) &
DDRCTRL_MRSTAT_MR_WR_BUSY) != 0U) {
;
}
/*
* 2. Write the MRCTRL0.mr_type, MRCTRL0.mr_addr, MRCTRL0.mr_rank
* and (for MRWs) MRCTRL1.mr_data to define the MR transaction.
*/
mrctrl0 = DDRCTRL_MRCTRL0_MR_TYPE_WRITE |
DDRCTRL_MRCTRL0_MR_RANK_ALL |
(((uint32_t)addr << DDRCTRL_MRCTRL0_MR_ADDR_SHIFT) &
DDRCTRL_MRCTRL0_MR_ADDR_MASK);
mmio_write_32((uint32_t)&priv->ctl->mrctrl0, mrctrl0);
VERBOSE("[0x%x] mrctrl0 = 0x%x (0x%x)\n",
(uint32_t)&priv->ctl->mrctrl0,
mmio_read_32((uint32_t)&priv->ctl->mrctrl0), mrctrl0);
mmio_write_32((uint32_t)&priv->ctl->mrctrl1, data);
VERBOSE("[0x%x] mrctrl1 = 0x%x\n",
(uint32_t)&priv->ctl->mrctrl1,
mmio_read_32((uint32_t)&priv->ctl->mrctrl1));
/*
* 3. In a separate APB transaction, write the MRCTRL0.mr_wr to 1. This
* bit is self-clearing, and triggers the MR transaction.
* The uMCTL2 then asserts the MRSTAT.mr_wr_busy while it performs
* the MR transaction to SDRAM, and no further access can be
* initiated until it is deasserted.
*/
mrctrl0 |= DDRCTRL_MRCTRL0_MR_WR;
mmio_write_32((uint32_t)&priv->ctl->mrctrl0, mrctrl0);
while ((mmio_read_32((uint32_t)&priv->ctl->mrstat) &
DDRCTRL_MRSTAT_MR_WR_BUSY) != 0U) {
;
}
VERBOSE("[0x%x] mrctrl0 = 0x%x\n",
(uint32_t)&priv->ctl->mrctrl0, mrctrl0);
}
/* Switch DDR3 from DLL-on to DLL-off */
static void stm32mp1_ddr3_dll_off(struct ddr_info *priv)
{
uint32_t mr1 = mmio_read_32((uint32_t)&priv->phy->mr1);
uint32_t mr2 = mmio_read_32((uint32_t)&priv->phy->mr2);
uint32_t dbgcam;
VERBOSE("mr1: 0x%x\n", mr1);
VERBOSE("mr2: 0x%x\n", mr2);
/*
* 1. Set the DBG1.dis_hif = 1.
* This prevents further reads/writes being received on the HIF.
*/
mmio_setbits_32((uint32_t)&priv->ctl->dbg1, DDRCTRL_DBG1_DIS_HIF);
VERBOSE("[0x%x] dbg1 = 0x%x\n",
(uint32_t)&priv->ctl->dbg1,
mmio_read_32((uint32_t)&priv->ctl->dbg1));
/*
* 2. Ensure all commands have been flushed from the uMCTL2 by polling
* DBGCAM.wr_data_pipeline_empty = 1,
* DBGCAM.rd_data_pipeline_empty = 1,
* DBGCAM.dbg_wr_q_depth = 0 ,
* DBGCAM.dbg_lpr_q_depth = 0, and
* DBGCAM.dbg_hpr_q_depth = 0.
*/
do {
dbgcam = mmio_read_32((uint32_t)&priv->ctl->dbgcam);
VERBOSE("[0x%x] dbgcam = 0x%x\n",
(uint32_t)&priv->ctl->dbgcam, dbgcam);
} while ((((dbgcam & DDRCTRL_DBGCAM_DATA_PIPELINE_EMPTY) ==
DDRCTRL_DBGCAM_DATA_PIPELINE_EMPTY)) &&
((dbgcam & DDRCTRL_DBGCAM_DBG_Q_DEPTH) == 0U));
/*
* 3. Perform an MRS command (using MRCTRL0 and MRCTRL1 registers)
* to disable RTT_NOM:
* a. DDR3: Write to MR1[9], MR1[6] and MR1[2]
* b. DDR4: Write to MR1[10:8]
*/
mr1 &= ~(BIT(9) | BIT(6) | BIT(2));
stm32mp1_mode_register_write(priv, 1, mr1);
/*
* 4. For DDR4 only: Perform an MRS command
* (using MRCTRL0 and MRCTRL1 registers) to write to MR5[8:6]
* to disable RTT_PARK
*/
/*
* 5. Perform an MRS command (using MRCTRL0 and MRCTRL1 registers)
* to write to MR2[10:9], to disable RTT_WR
* (and therefore disable dynamic ODT).
* This applies for both DDR3 and DDR4.
*/
mr2 &= ~GENMASK(10, 9);
stm32mp1_mode_register_write(priv, 2, mr2);
/*
* 6. Perform an MRS command (using MRCTRL0 and MRCTRL1 registers)
* to disable the DLL. The timing of this MRS is automatically
* handled by the uMCTL2.
* a. DDR3: Write to MR1[0]
* b. DDR4: Write to MR1[0]
*/
mr1 |= BIT(0);
stm32mp1_mode_register_write(priv, 1, mr1);
/*
* 7. Put the SDRAM into self-refresh mode by setting
* PWRCTL.selfref_sw = 1, and polling STAT.operating_mode to ensure
* the DDRC has entered self-refresh.
*/
mmio_setbits_32((uint32_t)&priv->ctl->pwrctl,
DDRCTRL_PWRCTL_SELFREF_SW);
VERBOSE("[0x%x] pwrctl = 0x%x\n",
(uint32_t)&priv->ctl->pwrctl,
mmio_read_32((uint32_t)&priv->ctl->pwrctl));
/*
* 8. Wait until STAT.operating_mode[1:0]==11 indicating that the
* DWC_ddr_umctl2 core is in self-refresh mode.
* Ensure transition to self-refresh was due to software
* by checking that STAT.selfref_type[1:0]=2.
*/
stm32mp1_wait_operating_mode(priv, DDRCTRL_STAT_OPERATING_MODE_SR);
/*
* 9. Set the MSTR.dll_off_mode = 1.
* warning: MSTR.dll_off_mode is a quasi-dynamic type 2 field
*/
stm32mp1_start_sw_done(priv->ctl);
mmio_setbits_32((uint32_t)&priv->ctl->mstr, DDRCTRL_MSTR_DLL_OFF_MODE);
VERBOSE("[0x%x] mstr = 0x%x\n",
(uint32_t)&priv->ctl->mstr,
mmio_read_32((uint32_t)&priv->ctl->mstr));
stm32mp1_wait_sw_done_ack(priv->ctl);
/* 10. Change the clock frequency to the desired value. */
/*
* 11. Update any registers which may be required to change for the new
* frequency. This includes static and dynamic registers.
* This includes both uMCTL2 registers and PHY registers.
*/
/* Change Bypass Mode Frequency Range */
if (stm32mp1_clk_get_rate(DDRPHYC) < 100000000U) {
mmio_clrbits_32((uint32_t)&priv->phy->dllgcr,
DDRPHYC_DLLGCR_BPS200);
} else {
mmio_setbits_32((uint32_t)&priv->phy->dllgcr,
DDRPHYC_DLLGCR_BPS200);
}
mmio_setbits_32((uint32_t)&priv->phy->acdllcr, DDRPHYC_ACDLLCR_DLLDIS);
mmio_setbits_32((uint32_t)&priv->phy->dx0dllcr,
DDRPHYC_DXNDLLCR_DLLDIS);
mmio_setbits_32((uint32_t)&priv->phy->dx1dllcr,
DDRPHYC_DXNDLLCR_DLLDIS);
mmio_setbits_32((uint32_t)&priv->phy->dx2dllcr,
DDRPHYC_DXNDLLCR_DLLDIS);
mmio_setbits_32((uint32_t)&priv->phy->dx3dllcr,
DDRPHYC_DXNDLLCR_DLLDIS);
/* 12. Exit the self-refresh state by setting PWRCTL.selfref_sw = 0. */
mmio_clrbits_32((uint32_t)&priv->ctl->pwrctl,
DDRCTRL_PWRCTL_SELFREF_SW);
stm32mp1_wait_operating_mode(priv, DDRCTRL_STAT_OPERATING_MODE_NORMAL);
/*
* 13. If ZQCTL0.dis_srx_zqcl = 0, the uMCTL2 performs a ZQCL command
* at this point.
*/
/*
* 14. Perform MRS commands as required to re-program timing registers
* in the SDRAM for the new frequency
* (in particular, CL, CWL and WR may need to be changed).
*/
/* 15. Write DBG1.dis_hif = 0 to re-enable reads and writes. */
mmio_clrbits_32((uint32_t)&priv->ctl->dbg1, DDRCTRL_DBG1_DIS_HIF);
VERBOSE("[0x%x] dbg1 = 0x%x\n",
(uint32_t)&priv->ctl->dbg1,
mmio_read_32((uint32_t)&priv->ctl->dbg1));
}
static void stm32mp1_refresh_disable(struct stm32mp1_ddrctl *ctl)
{
stm32mp1_start_sw_done(ctl);
/* Quasi-dynamic register update*/
mmio_setbits_32((uint32_t)&ctl->rfshctl3,
DDRCTRL_RFSHCTL3_DIS_AUTO_REFRESH);
mmio_clrbits_32((uint32_t)&ctl->pwrctl, DDRCTRL_PWRCTL_POWERDOWN_EN);
mmio_clrbits_32((uint32_t)&ctl->dfimisc,
DDRCTRL_DFIMISC_DFI_INIT_COMPLETE_EN);
stm32mp1_wait_sw_done_ack(ctl);
}
static void stm32mp1_refresh_restore(struct stm32mp1_ddrctl *ctl,
uint32_t rfshctl3, uint32_t pwrctl)
{
stm32mp1_start_sw_done(ctl);
if ((rfshctl3 & DDRCTRL_RFSHCTL3_DIS_AUTO_REFRESH) == 0U) {
mmio_clrbits_32((uint32_t)&ctl->rfshctl3,
DDRCTRL_RFSHCTL3_DIS_AUTO_REFRESH);
}
if ((pwrctl & DDRCTRL_PWRCTL_POWERDOWN_EN) != 0U) {
mmio_setbits_32((uint32_t)&ctl->pwrctl,
DDRCTRL_PWRCTL_POWERDOWN_EN);
}
mmio_setbits_32((uint32_t)&ctl->dfimisc,
DDRCTRL_DFIMISC_DFI_INIT_COMPLETE_EN);
stm32mp1_wait_sw_done_ack(ctl);
}
static int board_ddr_power_init(enum ddr_type ddr_type)
{
if (dt_check_pmic()) {
return pmic_ddr_power_init(ddr_type);
}
return 0;
}
void stm32mp1_ddr_init(struct ddr_info *priv,
struct stm32mp1_ddr_config *config)
{
uint32_t pir;
int ret;
if ((config->c_reg.mstr & DDRCTRL_MSTR_DDR3) != 0U) {
ret = board_ddr_power_init(STM32MP_DDR3);
} else {
ret = board_ddr_power_init(STM32MP_LPDDR2);
}
if (ret != 0) {
panic();
}
VERBOSE("name = %s\n", config->info.name);
VERBOSE("speed = %d MHz\n", config->info.speed);
VERBOSE("size = 0x%x\n", config->info.size);
/* DDR INIT SEQUENCE */
/*
* 1. Program the DWC_ddr_umctl2 registers
* nota: check DFIMISC.dfi_init_complete = 0
*/
/* 1.1 RESETS: presetn, core_ddrc_rstn, aresetn */
mmio_setbits_32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DDRCAPBRST);
mmio_setbits_32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DDRCAXIRST);
mmio_setbits_32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DDRCORERST);
mmio_setbits_32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DPHYAPBRST);
mmio_setbits_32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DPHYRST);
mmio_setbits_32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DPHYCTLRST);
/* 1.2. start CLOCK */
if (stm32mp1_ddr_clk_enable(priv, config->info.speed) != 0) {
panic();
}
/* 1.3. deassert reset */
/* De-assert PHY rstn and ctl_rstn via DPHYRST and DPHYCTLRST. */
mmio_clrbits_32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DPHYRST);
mmio_clrbits_32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DPHYCTLRST);
/*
* De-assert presetn once the clocks are active
* and stable via DDRCAPBRST bit.
*/
mmio_clrbits_32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DDRCAPBRST);
/* 1.4. wait 128 cycles to permit initialization of end logic */
udelay(2);
/* For PCLK = 133MHz => 1 us is enough, 2 to allow lower frequency */
/* 1.5. initialize registers ddr_umctl2 */
/* Stop uMCTL2 before PHY is ready */
mmio_clrbits_32((uint32_t)&priv->ctl->dfimisc,
DDRCTRL_DFIMISC_DFI_INIT_COMPLETE_EN);
VERBOSE("[0x%x] dfimisc = 0x%x\n",
(uint32_t)&priv->ctl->dfimisc,
mmio_read_32((uint32_t)&priv->ctl->dfimisc));
set_reg(priv, REG_REG, &config->c_reg);
/* DDR3 = don't set DLLOFF for init mode */
if ((config->c_reg.mstr &
(DDRCTRL_MSTR_DDR3 | DDRCTRL_MSTR_DLL_OFF_MODE))
== (DDRCTRL_MSTR_DDR3 | DDRCTRL_MSTR_DLL_OFF_MODE)) {
VERBOSE("deactivate DLL OFF in mstr\n");
mmio_clrbits_32((uint32_t)&priv->ctl->mstr,
DDRCTRL_MSTR_DLL_OFF_MODE);
VERBOSE("[0x%x] mstr = 0x%x\n",
(uint32_t)&priv->ctl->mstr,
mmio_read_32((uint32_t)&priv->ctl->mstr));
}
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 */
mmio_clrsetbits_32((uint32_t)&priv->ctl->init0,
DDRCTRL_INIT0_SKIP_DRAM_INIT_MASK,
DDRCTRL_INIT0_SKIP_DRAM_INIT_NORMAL);
VERBOSE("[0x%x] init0 = 0x%x\n",
(uint32_t)&priv->ctl->init0,
mmio_read_32((uint32_t)&priv->ctl->init0));
set_reg(priv, REG_PERF, &config->c_perf);
/* 2. deassert reset signal core_ddrc_rstn, aresetn and presetn */
mmio_clrbits_32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DDRCORERST);
mmio_clrbits_32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DDRCAXIRST);
mmio_clrbits_32(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);
/* DDR3 = don't set DLLOFF for init mode */
if ((config->c_reg.mstr &
(DDRCTRL_MSTR_DDR3 | DDRCTRL_MSTR_DLL_OFF_MODE))
== (DDRCTRL_MSTR_DDR3 | DDRCTRL_MSTR_DLL_OFF_MODE)) {
VERBOSE("deactivate DLL OFF in mr1\n");
mmio_clrbits_32((uint32_t)&priv->phy->mr1, BIT(0));
VERBOSE("[0x%x] mr1 = 0x%x\n",
(uint32_t)&priv->phy->mr1,
mmio_read_32((uint32_t)&priv->phy->mr1));
}
/*
* 4. Monitor PHY init status by polling PUBL register PGSR.IDONE
* Perform DDR PHY DRAM initialization and Gate Training Evaluation
*/
stm32mp1_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) != 0U) {
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.
*/
stm32mp1_start_sw_done(priv->ctl);
mmio_setbits_32((uint32_t)&priv->ctl->dfimisc,
DDRCTRL_DFIMISC_DFI_INIT_COMPLETE_EN);
VERBOSE("[0x%x] dfimisc = 0x%x\n",
(uint32_t)&priv->ctl->dfimisc,
mmio_read_32((uint32_t)&priv->ctl->dfimisc));
stm32mp1_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 */
stm32mp1_wait_operating_mode(priv, DDRCTRL_STAT_OPERATING_MODE_NORMAL);
/* Switch to DLL OFF mode */
if ((config->c_reg.mstr & DDRCTRL_MSTR_DLL_OFF_MODE) != 0U) {
stm32mp1_ddr3_dll_off(priv);
}
VERBOSE("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 */
stm32mp1_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 */
mmio_setbits_32((uint32_t)&priv->ctl->pctrl_0, DDRCTRL_PCTRL_N_PORT_EN);
VERBOSE("[0x%x] pctrl_0 = 0x%x\n",
(uint32_t)&priv->ctl->pctrl_0,
mmio_read_32((uint32_t)&priv->ctl->pctrl_0));
/* Enable uMCTL2 AXI port 1 */
mmio_setbits_32((uint32_t)&priv->ctl->pctrl_1, DDRCTRL_PCTRL_N_PORT_EN);
VERBOSE("[0x%x] pctrl_1 = 0x%x\n",
(uint32_t)&priv->ctl->pctrl_1,
mmio_read_32((uint32_t)&priv->ctl->pctrl_1));
}

20
drivers/st/ddr/stm32mp1_ddr_helpers.c Normal file
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/*
* Copyright (c) 2017-2018, STMicroelectronics - All Rights Reserved
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <mmio.h>
#include <platform_def.h>
#include <stm32mp1_ddr_helpers.h>
#include <stm32mp1_rcc.h>
void ddr_enable_clock(void)
{
mmio_setbits_32(RCC_BASE + RCC_DDRITFCR,
RCC_DDRITFCR_DDRC1EN |
RCC_DDRITFCR_DDRC2EN |
RCC_DDRITFCR_DDRPHYCEN |
RCC_DDRITFCR_DDRPHYCAPBEN |
RCC_DDRITFCR_DDRCAPBEN);
}

308
drivers/st/ddr/stm32mp1_ram.c Normal file
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/*
* Copyright (C) 2018, STMicroelectronics - All Rights Reserved
*
* SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
*/
#include <arch_helpers.h>
#include <boot_api.h>
#include <debug.h>
#include <dt-bindings/clock/stm32mp1-clks.h>
#include <errno.h>
#include <libfdt.h>
#include <mmio.h>
#include <platform_def.h>
#include <stm32mp1_clk.h>
#include <stm32mp1_ddr.h>
#include <stm32mp1_ddr_helpers.h>
#include <stm32mp1_dt.h>
#include <stm32mp1_private.h>
#include <stm32mp1_ram.h>
#include <stm32mp1_rcc.h>
#define DDR_PATTERN 0xAAAAAAAAU
#define DDR_ANTIPATTERN 0x55555555U
static struct ddr_info ddr_priv_data;
int stm32mp1_ddr_clk_enable(struct ddr_info *priv, uint16_t mem_speed)
{
unsigned long ddrphy_clk, ddr_clk, mem_speed_hz;
ddr_enable_clock();
ddrphy_clk = stm32mp1_clk_get_rate(DDRPHYC);
VERBOSE("DDR: mem_speed (%d MHz), RCC %ld MHz\n",
mem_speed, ddrphy_clk / 1000U / 1000U);
mem_speed_hz = (uint32_t)mem_speed * 1000U * 1000U;
/* Max 10% frequency delta */
if (ddrphy_clk > mem_speed_hz) {
ddr_clk = ddrphy_clk - mem_speed_hz;
} else {
ddr_clk = mem_speed_hz - ddrphy_clk;
}
if (ddr_clk > mem_speed_hz) {
ERROR("DDR expected freq %d MHz, current is %ld MHz\n",
mem_speed, ddrphy_clk / 1000U / 1000U);
return -1;
}
return 0;
}
/*******************************************************************************
* This function tests the DDR data bus wiring.
* This is inspired from the Data Bus Test algorithm written by Michael Barr
* in "Programming Embedded Systems in C and C++" book.
* resources.oreilly.com/examples/9781565923546/blob/master/Chapter6/
* File: memtest.c - This source code belongs to Public Domain.
* Returns 0 if success, and address value else.
******************************************************************************/
static uint32_t ddr_test_data_bus(void)
{
uint32_t pattern;
for (pattern = 1U; pattern != 0U; pattern <<= 1) {
mmio_write_32(STM32MP1_DDR_BASE, pattern);
if (mmio_read_32(STM32MP1_DDR_BASE) != pattern) {
return (uint32_t)STM32MP1_DDR_BASE;
}
}
return 0;
}
/*******************************************************************************
* This function tests the DDR address bus wiring.
* This is inspired from the Data Bus Test algorithm written by Michael Barr
* in "Programming Embedded Systems in C and C++" book.
* resources.oreilly.com/examples/9781565923546/blob/master/Chapter6/
* File: memtest.c - This source code belongs to Public Domain.
* Returns 0 if success, and address value else.
******************************************************************************/
static uint32_t ddr_test_addr_bus(void)
{
uint64_t addressmask = (ddr_priv_data.info.size - 1U);
uint64_t offset;
uint64_t testoffset = 0;
/* Write the default pattern at each of the power-of-two offsets. */
for (offset = sizeof(uint32_t); (offset & addressmask) != 0U;
offset <<= 1) {
mmio_write_32(STM32MP1_DDR_BASE + (uint32_t)offset,
DDR_PATTERN);
}
/* Check for address bits stuck high. */
mmio_write_32(STM32MP1_DDR_BASE + (uint32_t)testoffset,
DDR_ANTIPATTERN);
for (offset = sizeof(uint32_t); (offset & addressmask) != 0U;
offset <<= 1) {
if (mmio_read_32(STM32MP1_DDR_BASE + (uint32_t)offset) !=
DDR_PATTERN) {
return (uint32_t)(STM32MP1_DDR_BASE + offset);
}
}
mmio_write_32(STM32MP1_DDR_BASE + (uint32_t)testoffset, DDR_PATTERN);
/* Check for address bits stuck low or shorted. */
for (testoffset = sizeof(uint32_t); (testoffset & addressmask) != 0U;
testoffset <<= 1) {
mmio_write_32(STM32MP1_DDR_BASE + (uint32_t)testoffset,
DDR_ANTIPATTERN);
if (mmio_read_32(STM32MP1_DDR_BASE) != DDR_PATTERN) {
return STM32MP1_DDR_BASE;
}
for (offset = sizeof(uint32_t); (offset & addressmask) != 0U;
offset <<= 1) {
if ((mmio_read_32(STM32MP1_DDR_BASE +
(uint32_t)offset) != DDR_PATTERN) &&
(offset != testoffset)) {
return (uint32_t)(STM32MP1_DDR_BASE + offset);
}
}
mmio_write_32(STM32MP1_DDR_BASE + (uint32_t)testoffset,
DDR_PATTERN);
}
return 0;
}
/*******************************************************************************
* This function checks the DDR size. It has to be run with Data Cache off.
* This test is run before data have been put in DDR, and is only done for
* cold boot. The DDR data can then be overwritten, and it is not useful to
* restore its content.
* Returns DDR computed size.
******************************************************************************/
static uint32_t ddr_check_size(void)
{
uint32_t offset = sizeof(uint32_t);
mmio_write_32(STM32MP1_DDR_BASE, DDR_PATTERN);
while (offset < STM32MP1_DDR_MAX_SIZE) {
mmio_write_32(STM32MP1_DDR_BASE + offset, DDR_ANTIPATTERN);
dsb();
if (mmio_read_32(STM32MP1_DDR_BASE) != DDR_PATTERN) {
break;
}
offset <<= 1;
}
INFO("Memory size = 0x%x (%d MB)\n", offset, offset / (1024U * 1024U));
return offset;
}
static int stm32mp1_ddr_setup(void)
{
struct ddr_info *priv = &ddr_priv_data;
int ret;
struct stm32mp1_ddr_config config;
int node, len;
uint32_t tamp_clk_off = 0, uret, idx;
void *fdt;
#define PARAM(x, y) \
{ \
.name = x, \
.offset = offsetof(struct stm32mp1_ddr_config, y), \
.size = sizeof(config.y) / sizeof(uint32_t) \
}
#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 uint32_t offset; /* Offset in config struct */
const uint32_t 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)
};
if (fdt_get_address(&fdt) == 0) {
return -ENOENT;
}
node = fdt_node_offset_by_compatible(fdt, -1, DT_DDR_COMPAT);
if (node < 0) {
ERROR("%s: Cannot read DDR node in DT\n", __func__);
return -EINVAL;
}
config.info.speed =
(uint16_t)fdt_read_uint32_default(node, "st,mem-speed",
STM32MP1_DDR_SPEED_DFLT);
config.info.size = fdt_read_uint32_default(node, "st,mem-size",
STM32MP1_DDR_SIZE_DFLT);
config.info.name = fdt_getprop(fdt, node, "st,mem-name", &len);
if (config.info.name == NULL) {
VERBOSE("%s: no st,mem-name\n", __func__);
return -EINVAL;
}
INFO("RAM: %s\n", config.info.name);
for (idx = 0; idx < ARRAY_SIZE(param); idx++) {
ret = fdt_read_uint32_array(node, param[idx].name,
(void *)((uint32_t)&config +
param[idx].offset),
param[idx].size);
VERBOSE("%s: %s[0x%x] = %d\n", __func__,
param[idx].name, param[idx].size, ret);
if (ret != 0) {
ERROR("%s: Cannot read %s\n",
__func__, param[idx].name);
return -EINVAL;
}
}
if (!stm32mp1_clk_is_enabled(RTCAPB)) {
tamp_clk_off = 1;
if (stm32mp1_clk_enable(RTCAPB) != 0) {
return -EINVAL;
}
}
if (tamp_clk_off != 0U) {
if (stm32mp1_clk_disable(RTCAPB) != 0) {
return -EINVAL;
}
}
/* Disable axidcg clock gating during init */
mmio_clrbits_32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_AXIDCGEN);
stm32mp1_ddr_init(priv, &config);
/* Enable axidcg clock gating */
mmio_setbits_32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_AXIDCGEN);
priv->info.size = config.info.size;
VERBOSE("%s : ram size(%x, %x)\n", __func__,
(uint32_t)priv->info.base, (uint32_t)priv->info.size);
dcsw_op_all(DC_OP_CISW);
write_sctlr(read_sctlr() & ~SCTLR_C_BIT);
uret = ddr_test_data_bus();
if (uret != 0U) {
ERROR("DDR data bus test: can't access memory @ 0x%x\n",
uret);
panic();
}
uret = ddr_test_addr_bus();
if (uret != 0U) {
ERROR("DDR addr bus test: can't access memory @ 0x%x\n",
uret);
panic();
}
uret = ddr_check_size();
if (uret < config.info.size) {
ERROR("DDR size: 0x%x does not match DT config: 0x%x\n",
uret, config.info.size);
panic();
}
write_sctlr(read_sctlr() | SCTLR_C_BIT);
return 0;
}
int stm32mp1_ddr_probe(void)
{
struct ddr_info *priv = &ddr_priv_data;
VERBOSE("STM32MP DDR probe\n");
priv->ctl = (struct stm32mp1_ddrctl *)DDRCTRL_BASE;
priv->phy = (struct stm32mp1_ddrphy *)DDRPHYC_BASE;
priv->pwr = PWR_BASE;
priv->rcc = RCC_BASE;
priv->info.base = STM32MP1_DDR_BASE;
priv->info.size = 0;
return stm32mp1_ddr_setup();
}

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/*
* Copyright (C) 2018, STMicroelectronics - All Rights Reserved
*
* SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
*/
#ifndef _STM32MP1_DDR_H
#define _STM32MP1_DDR_H
#include <stdbool.h>
#define DT_DDR_COMPAT "st,stm32mp1-ddr"
struct stm32mp1_ddr_size {
uint64_t base;
uint64_t size;
};
/**
* struct ddr_info
*
* @dev: pointer for the device
* @info: UCLASS RAM information
* @ctl: DDR controleur base address
* @phy: DDR PHY base address
* @syscfg: syscfg base address
*/
struct ddr_info {
struct stm32mp1_ddr_size info;
struct stm32mp1_ddrctl *ctl;
struct stm32mp1_ddrphy *phy;
uintptr_t pwr;
uintptr_t rcc;
};
struct stm32mp1_ddrctrl_reg {
uint32_t mstr;
uint32_t mrctrl0;
uint32_t mrctrl1;
uint32_t derateen;
uint32_t derateint;
uint32_t pwrctl;
uint32_t pwrtmg;
uint32_t hwlpctl;
uint32_t rfshctl0;
uint32_t rfshctl3;
uint32_t crcparctl0;
uint32_t zqctl0;
uint32_t dfitmg0;
uint32_t dfitmg1;
uint32_t dfilpcfg0;
uint32_t dfiupd0;
uint32_t dfiupd1;
uint32_t dfiupd2;
uint32_t dfiphymstr;
uint32_t odtmap;
uint32_t dbg0;
uint32_t dbg1;
uint32_t dbgcmd;
uint32_t poisoncfg;
uint32_t pccfg;
};
struct stm32mp1_ddrctrl_timing {
uint32_t rfshtmg;
uint32_t dramtmg0;
uint32_t dramtmg1;
uint32_t dramtmg2;
uint32_t dramtmg3;
uint32_t dramtmg4;
uint32_t dramtmg5;
uint32_t dramtmg6;
uint32_t dramtmg7;
uint32_t dramtmg8;
uint32_t dramtmg14;
uint32_t odtcfg;
};
struct stm32mp1_ddrctrl_map {
uint32_t addrmap1;
uint32_t addrmap2;
uint32_t addrmap3;
uint32_t addrmap4;
uint32_t addrmap5;
uint32_t addrmap6;
uint32_t addrmap9;
uint32_t addrmap10;
uint32_t addrmap11;
};
struct stm32mp1_ddrctrl_perf {
uint32_t sched;
uint32_t sched1;
uint32_t perfhpr1;
uint32_t perflpr1;
uint32_t perfwr1;
uint32_t pcfgr_0;
uint32_t pcfgw_0;
uint32_t pcfgqos0_0;
uint32_t pcfgqos1_0;
uint32_t pcfgwqos0_0;
uint32_t pcfgwqos1_0;
uint32_t pcfgr_1;
uint32_t pcfgw_1;
uint32_t pcfgqos0_1;
uint32_t pcfgqos1_1;
uint32_t pcfgwqos0_1;
uint32_t pcfgwqos1_1;
};
struct stm32mp1_ddrphy_reg {
uint32_t pgcr;
uint32_t aciocr;
uint32_t dxccr;
uint32_t dsgcr;
uint32_t dcr;
uint32_t odtcr;
uint32_t zq0cr1;
uint32_t dx0gcr;
uint32_t dx1gcr;
uint32_t dx2gcr;
uint32_t dx3gcr;
};
struct stm32mp1_ddrphy_timing {
uint32_t ptr0;
uint32_t ptr1;
uint32_t ptr2;
uint32_t dtpr0;
uint32_t dtpr1;
uint32_t dtpr2;
uint32_t mr0;
uint32_t mr1;
uint32_t mr2;
uint32_t mr3;
};
struct stm32mp1_ddrphy_cal {
uint32_t dx0dllcr;
uint32_t dx0dqtr;
uint32_t dx0dqstr;
uint32_t dx1dllcr;
uint32_t dx1dqtr;
uint32_t dx1dqstr;
uint32_t dx2dllcr;
uint32_t dx2dqtr;
uint32_t dx2dqstr;
uint32_t dx3dllcr;
uint32_t dx3dqtr;
uint32_t dx3dqstr;
};
struct stm32mp1_ddr_info {
const char *name;
uint16_t speed; /* in MHZ */
uint32_t 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, uint16_t mem_speed);
void stm32mp1_ddr_init(struct ddr_info *priv,
struct stm32mp1_ddr_config *config);
#endif /* _STM32MP1_DDR_H */

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/*
* Copyright (c) 2017-2018, STMicroelectronics - All Rights Reserved
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef __STM32MP1_DDR_HELPERS_H__
#define __STM32MP1_DDR_HELPERS_H__
void ddr_enable_clock(void);
#endif /* __STM32MP1_DDR_HELPERS_H__ */

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/*
* Copyright (c) 2017-2018, STMicroelectronics - All Rights Reserved
*
* SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
*/
#ifndef _RAM_STM32MP1_DDR_REGS_H
#define _RAM_STM32MP1_DDR_REGS_H
#include <utils_def.h>
/* DDR3/LPDDR2/LPDDR3 Controller (DDRCTRL) registers */
struct stm32mp1_ddrctl {
uint32_t mstr ; /* 0x0 Master */
uint32_t stat; /* 0x4 Operating Mode Status */
uint8_t reserved008[0x10 - 0x8];
uint32_t mrctrl0; /* 0x10 Control 0 */
uint32_t mrctrl1; /* 0x14 Control 1 */
uint32_t mrstat; /* 0x18 Status */
uint32_t reserved01c; /* 0x1c */
uint32_t derateen; /* 0x20 Temperature Derate Enable */
uint32_t derateint; /* 0x24 Temperature Derate Interval */
uint8_t reserved028[0x30 - 0x28];
uint32_t pwrctl; /* 0x30 Low Power Control */
uint32_t pwrtmg; /* 0x34 Low Power Timing */
uint32_t hwlpctl; /* 0x38 Hardware Low Power Control */
uint8_t reserved03c[0x50 - 0x3C];
uint32_t rfshctl0; /* 0x50 Refresh Control 0 */
uint32_t reserved054; /* 0x54 Refresh Control 1 */
uint32_t reserved058; /* 0x58 Refresh Control 2 */
uint32_t reserved05C;
uint32_t rfshctl3; /* 0x60 Refresh Control 0 */
uint32_t rfshtmg; /* 0x64 Refresh Timing */
uint8_t reserved068[0xc0 - 0x68];
uint32_t crcparctl0; /* 0xc0 CRC Parity Control0 */
uint32_t reserved0c4; /* 0xc4 CRC Parity Control1 */
uint32_t reserved0c8; /* 0xc8 CRC Parity Control2 */
uint32_t crcparstat; /* 0xcc CRC Parity Status */
uint32_t init0; /* 0xd0 SDRAM Initialization 0 */
uint32_t init1; /* 0xd4 SDRAM Initialization 1 */
uint32_t init2; /* 0xd8 SDRAM Initialization 2 */
uint32_t init3; /* 0xdc SDRAM Initialization 3 */
uint32_t init4; /* 0xe0 SDRAM Initialization 4 */
uint32_t init5; /* 0xe4 SDRAM Initialization 5 */
uint32_t reserved0e8;
uint32_t reserved0ec;
uint32_t dimmctl; /* 0xf0 DIMM Control */
uint8_t reserved0f4[0x100 - 0xf4];
uint32_t dramtmg0; /* 0x100 SDRAM Timing 0 */
uint32_t dramtmg1; /* 0x104 SDRAM Timing 1 */
uint32_t dramtmg2; /* 0x108 SDRAM Timing 2 */
uint32_t dramtmg3; /* 0x10c SDRAM Timing 3 */
uint32_t dramtmg4; /* 0x110 SDRAM Timing 4 */
uint32_t dramtmg5; /* 0x114 SDRAM Timing 5 */
uint32_t dramtmg6; /* 0x118 SDRAM Timing 6 */
uint32_t dramtmg7; /* 0x11c SDRAM Timing 7 */
uint32_t dramtmg8; /* 0x120 SDRAM Timing 8 */
uint8_t reserved124[0x138 - 0x124];
uint32_t dramtmg14; /* 0x138 SDRAM Timing 14 */
uint32_t dramtmg15; /* 0x13C SDRAM Timing 15 */
uint8_t reserved140[0x180 - 0x140];
uint32_t zqctl0; /* 0x180 ZQ Control 0 */
uint32_t zqctl1; /* 0x184 ZQ Control 1 */
uint32_t zqctl2; /* 0x188 ZQ Control 2 */
uint32_t zqstat; /* 0x18c ZQ Status */
uint32_t dfitmg0; /* 0x190 DFI Timing 0 */
uint32_t dfitmg1; /* 0x194 DFI Timing 1 */
uint32_t dfilpcfg0; /* 0x198 DFI Low Power Configuration 0 */
uint32_t reserved19c;
uint32_t dfiupd0; /* 0x1a0 DFI Update 0 */
uint32_t dfiupd1; /* 0x1a4 DFI Update 1 */
uint32_t dfiupd2; /* 0x1a8 DFI Update 2 */
uint32_t reserved1ac;
uint32_t dfimisc; /* 0x1b0 DFI Miscellaneous Control */
uint8_t reserved1b4[0x1bc - 0x1b4];
uint32_t dfistat; /* 0x1bc DFI Miscellaneous Control */
uint8_t reserved1c0[0x1c4 - 0x1c0];
uint32_t dfiphymstr; /* 0x1c4 DFI PHY Master interface */
uint8_t reserved1c8[0x204 - 0x1c8];
uint32_t addrmap1; /* 0x204 Address Map 1 */
uint32_t addrmap2; /* 0x208 Address Map 2 */
uint32_t addrmap3; /* 0x20c Address Map 3 */
uint32_t addrmap4; /* 0x210 Address Map 4 */
uint32_t addrmap5; /* 0x214 Address Map 5 */
uint32_t addrmap6; /* 0x218 Address Map 6 */
uint8_t reserved21c[0x224 - 0x21c];
uint32_t addrmap9; /* 0x224 Address Map 9 */
uint32_t addrmap10; /* 0x228 Address Map 10 */
uint32_t addrmap11; /* 0x22C Address Map 11 */
uint8_t reserved230[0x240 - 0x230];
uint32_t odtcfg; /* 0x240 ODT Configuration */
uint32_t odtmap; /* 0x244 ODT/Rank Map */
uint8_t reserved248[0x250 - 0x248];
uint32_t sched; /* 0x250 Scheduler Control */
uint32_t sched1; /* 0x254 Scheduler Control 1 */
uint32_t reserved258;
uint32_t perfhpr1; /* 0x25c High Priority Read CAM 1 */
uint32_t reserved260;
uint32_t perflpr1; /* 0x264 Low Priority Read CAM 1 */
uint32_t reserved268;
uint32_t perfwr1; /* 0x26c Write CAM 1 */
uint8_t reserved27c[0x300 - 0x270];
uint32_t dbg0; /* 0x300 Debug 0 */
uint32_t dbg1; /* 0x304 Debug 1 */
uint32_t dbgcam; /* 0x308 CAM Debug */
uint32_t dbgcmd; /* 0x30c Command Debug */
uint32_t dbgstat; /* 0x310 Status Debug */
uint8_t reserved314[0x320 - 0x314];
uint32_t swctl; /* 0x320 Software Programming Control Enable */
uint32_t swstat; /* 0x324 Software Programming Control Status */
uint8_t reserved328[0x36c - 0x328];
uint32_t poisoncfg; /* 0x36c AXI Poison Configuration Register */
uint32_t poisonstat; /* 0x370 AXI Poison Status Register */
uint8_t reserved374[0x3fc - 0x374];
/* Multi Port registers */
uint32_t pstat; /* 0x3fc Port Status */
uint32_t pccfg; /* 0x400 Port Common Configuration */
/* PORT 0 */
uint32_t pcfgr_0; /* 0x404 Configuration Read */
uint32_t pcfgw_0; /* 0x408 Configuration Write */
uint8_t reserved40c[0x490 - 0x40c];
uint32_t pctrl_0; /* 0x490 Port Control Register */
uint32_t pcfgqos0_0; /* 0x494 Read QoS Configuration 0 */
uint32_t pcfgqos1_0; /* 0x498 Read QoS Configuration 1 */
uint32_t pcfgwqos0_0; /* 0x49c Write QoS Configuration 0 */
uint32_t pcfgwqos1_0; /* 0x4a0 Write QoS Configuration 1 */
uint8_t reserved4a4[0x4b4 - 0x4a4];
/* PORT 1 */
uint32_t pcfgr_1; /* 0x4b4 Configuration Read */
uint32_t pcfgw_1; /* 0x4b8 Configuration Write */
uint8_t reserved4bc[0x540 - 0x4bc];
uint32_t pctrl_1; /* 0x540 Port 2 Control Register */
uint32_t pcfgqos0_1; /* 0x544 Read QoS Configuration 0 */
uint32_t pcfgqos1_1; /* 0x548 Read QoS Configuration 1 */
uint32_t pcfgwqos0_1; /* 0x54c Write QoS Configuration 0 */
uint32_t pcfgwqos1_1; /* 0x550 Write QoS Configuration 1 */
} __packed;
/* DDR Physical Interface Control (DDRPHYC) registers*/
struct stm32mp1_ddrphy {
uint32_t ridr; /* 0x00 R Revision Identification */
uint32_t pir; /* 0x04 R/W PHY Initialization */
uint32_t pgcr; /* 0x08 R/W PHY General Configuration */
uint32_t pgsr; /* 0x0C PHY General Status */
uint32_t dllgcr; /* 0x10 R/W DLL General Control */
uint32_t acdllcr; /* 0x14 R/W AC DLL Control */
uint32_t ptr0; /* 0x18 R/W PHY Timing 0 */
uint32_t ptr1; /* 0x1C R/W PHY Timing 1 */
uint32_t ptr2; /* 0x20 R/W PHY Timing 2 */
uint32_t aciocr; /* 0x24 AC I/O Configuration */
uint32_t dxccr; /* 0x28 DATX8 Common Configuration */
uint32_t dsgcr; /* 0x2C DDR System General Configuration */
uint32_t dcr; /* 0x30 DRAM Configuration */
uint32_t dtpr0; /* 0x34 DRAM Timing Parameters0 */
uint32_t dtpr1; /* 0x38 DRAM Timing Parameters1 */
uint32_t dtpr2; /* 0x3C DRAM Timing Parameters2 */
uint32_t mr0; /* 0x40 Mode 0 */
uint32_t mr1; /* 0x44 Mode 1 */
uint32_t mr2; /* 0x48 Mode 2 */
uint32_t mr3; /* 0x4C Mode 3 */
uint32_t odtcr; /* 0x50 ODT Configuration */
uint32_t dtar; /* 0x54 data training address */
uint32_t dtdr0; /* 0x58 */
uint32_t dtdr1; /* 0x5c */
uint8_t res1[0x0c0 - 0x060]; /* 0x60 */
uint32_t dcuar; /* 0xc0 Address */
uint32_t dcudr; /* 0xc4 DCU Data */
uint32_t dcurr; /* 0xc8 DCU Run */
uint32_t dculr; /* 0xcc DCU Loop */
uint32_t dcugcr; /* 0xd0 DCU General Configuration */
uint32_t dcutpr; /* 0xd4 DCU Timing Parameters */
uint32_t dcusr0; /* 0xd8 DCU Status 0 */
uint32_t dcusr1; /* 0xdc DCU Status 1 */
uint8_t res2[0x100 - 0xe0]; /* 0xe0 */
uint32_t bistrr; /* 0x100 BIST Run */
uint32_t bistmskr0; /* 0x104 BIST Mask 0 */
uint32_t bistmskr1; /* 0x108 BIST Mask 0 */
uint32_t bistwcr; /* 0x10c BIST Word Count */
uint32_t bistlsr; /* 0x110 BIST LFSR Seed */
uint32_t bistar0; /* 0x114 BIST Address 0 */
uint32_t bistar1; /* 0x118 BIST Address 1 */
uint32_t bistar2; /* 0x11c BIST Address 2 */
uint32_t bistupdr; /* 0x120 BIST User Data Pattern */
uint32_t bistgsr; /* 0x124 BIST General Status */
uint32_t bistwer; /* 0x128 BIST Word Error */
uint32_t bistber0; /* 0x12c BIST Bit Error 0 */
uint32_t bistber1; /* 0x130 BIST Bit Error 1 */
uint32_t bistber2; /* 0x134 BIST Bit Error 2 */
uint32_t bistwcsr; /* 0x138 BIST Word Count Status */
uint32_t bistfwr0; /* 0x13c BIST Fail Word 0 */
uint32_t bistfwr1; /* 0x140 BIST Fail Word 1 */
uint8_t res3[0x178 - 0x144]; /* 0x144 */
uint32_t gpr0; /* 0x178 General Purpose 0 (GPR0) */
uint32_t gpr1; /* 0x17C General Purpose 1 (GPR1) */
uint32_t zq0cr0; /* 0x180 zq 0 control 0 */
uint32_t zq0cr1; /* 0x184 zq 0 control 1 */
uint32_t zq0sr0; /* 0x188 zq 0 status 0 */
uint32_t zq0sr1; /* 0x18C zq 0 status 1 */
uint8_t res4[0x1C0 - 0x190]; /* 0x190 */
uint32_t dx0gcr; /* 0x1c0 Byte lane 0 General Configuration */
uint32_t dx0gsr0; /* 0x1c4 Byte lane 0 General Status 0 */
uint32_t dx0gsr1; /* 0x1c8 Byte lane 0 General Status 1 */
uint32_t dx0dllcr; /* 0x1cc Byte lane 0 DLL Control */
uint32_t dx0dqtr; /* 0x1d0 Byte lane 0 DQ Timing */
uint32_t dx0dqstr; /* 0x1d4 Byte lane 0 DQS Timing */
uint8_t res5[0x200 - 0x1d8]; /* 0x1d8 */
uint32_t dx1gcr; /* 0x200 Byte lane 1 General Configuration */
uint32_t dx1gsr0; /* 0x204 Byte lane 1 General Status 0 */
uint32_t dx1gsr1; /* 0x208 Byte lane 1 General Status 1 */
uint32_t dx1dllcr; /* 0x20c Byte lane 1 DLL Control */
uint32_t dx1dqtr; /* 0x210 Byte lane 1 DQ Timing */
uint32_t dx1dqstr; /* 0x214 Byte lane 1 QS Timing */
uint8_t res6[0x240 - 0x218]; /* 0x218 */
uint32_t dx2gcr; /* 0x240 Byte lane 2 General Configuration */
uint32_t dx2gsr0; /* 0x244 Byte lane 2 General Status 0 */
uint32_t dx2gsr1; /* 0x248 Byte lane 2 General Status 1 */
uint32_t dx2dllcr; /* 0x24c Byte lane 2 DLL Control */
uint32_t dx2dqtr; /* 0x250 Byte lane 2 DQ Timing */
uint32_t dx2dqstr; /* 0x254 Byte lane 2 QS Timing */
uint8_t res7[0x280 - 0x258]; /* 0x258 */
uint32_t dx3gcr; /* 0x280 Byte lane 3 General Configuration */
uint32_t dx3gsr0; /* 0x284 Byte lane 3 General Status 0 */
uint32_t dx3gsr1; /* 0x288 Byte lane 3 General Status 1 */
uint32_t dx3dllcr; /* 0x28c Byte lane 3 DLL Control */
uint32_t dx3dqtr; /* 0x290 Byte lane 3 DQ Timing */
uint32_t dx3dqstr; /* 0x294 Byte lane 3 QS Timing */
} __packed;
/* DDR Controller registers offsets */
#define DDRCTRL_MSTR 0x000
#define DDRCTRL_STAT 0x004
#define DDRCTRL_MRCTRL0 0x010
#define DDRCTRL_MRSTAT 0x018
#define DDRCTRL_PWRCTL 0x030
#define DDRCTRL_PWRTMG 0x034
#define DDRCTRL_HWLPCTL 0x038
#define DDRCTRL_RFSHCTL3 0x060
#define DDRCTRL_RFSHTMG 0x064
#define DDRCTRL_INIT0 0x0D0
#define DDRCTRL_DFIMISC 0x1B0
#define DDRCTRL_DBG1 0x304
#define DDRCTRL_DBGCAM 0x308
#define DDRCTRL_DBGCMD 0x30C
#define DDRCTRL_DBGSTAT 0x310
#define DDRCTRL_SWCTL 0x320
#define DDRCTRL_SWSTAT 0x324
#define DDRCTRL_PCTRL_0 0x490
#define DDRCTRL_PCTRL_1 0x540
/* DDR Controller Register fields */
#define DDRCTRL_MSTR_DDR3 BIT(0)
#define DDRCTRL_MSTR_DATA_BUS_WIDTH_MASK GENMASK(13, 12)
#define DDRCTRL_MSTR_DATA_BUS_WIDTH_FULL 0
#define DDRCTRL_MSTR_DATA_BUS_WIDTH_HALF BIT(12)
#define DDRCTRL_MSTR_DATA_BUS_WIDTH_QUARTER BIT(13)
#define DDRCTRL_MSTR_DLL_OFF_MODE BIT(15)
#define DDRCTRL_STAT_OPERATING_MODE_MASK GENMASK(2, 0)
#define DDRCTRL_STAT_OPERATING_MODE_NORMAL BIT(0)
#define DDRCTRL_STAT_OPERATING_MODE_SR (BIT(0) | BIT(1))
#define DDRCTRL_STAT_SELFREF_TYPE_MASK GENMASK(5, 4)
#define DDRCTRL_STAT_SELFREF_TYPE_ASR (BIT(4) | BIT(5))
#define DDRCTRL_STAT_SELFREF_TYPE_SR BIT(5)
#define DDRCTRL_MRCTRL0_MR_TYPE_WRITE U(0)
/* Only one rank supported */
#define DDRCTRL_MRCTRL0_MR_RANK_SHIFT 4
#define DDRCTRL_MRCTRL0_MR_RANK_ALL \
(0x1U << 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_SELFREF_EN BIT(0)
#define DDRCTRL_PWRCTL_POWERDOWN_EN BIT(1)
#define DDRCTRL_PWRCTL_EN_DFI_DRAM_CLK_DISABLE BIT(3)
#define DDRCTRL_PWRCTL_SELFREF_SW BIT(5)
#define DDRCTRL_PWRTMG_SELFREF_TO_X32_MASK GENMASK(19, 12)
#define DDRCTRL_PWRTMG_SELFREF_TO_X32_0 BIT(16)
#define DDRCTRL_RFSHCTL3_DIS_AUTO_REFRESH BIT(0)
#define DDRCTRL_HWLPCTL_HW_LP_EN 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 GENMASK(31, 30)
#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)
/* DDR PHY registers offsets */
#define DDRPHYC_PIR 0x004
#define DDRPHYC_PGCR 0x008
#define DDRPHYC_PGSR 0x00C
#define DDRPHYC_DLLGCR 0x010
#define DDRPHYC_ACDLLCR 0x014
#define DDRPHYC_PTR0 0x018
#define DDRPHYC_ACIOCR 0x024
#define DDRPHYC_DXCCR 0x028
#define DDRPHYC_DSGCR 0x02C
#define DDRPHYC_ZQ0CR0 0x180
#define DDRPHYC_DX0GCR 0x1C0
#define DDRPHYC_DX0DLLCR 0x1CC
#define DDRPHYC_DX1GCR 0x200
#define DDRPHYC_DX1DLLCR 0x20C
#define DDRPHYC_DX2GCR 0x240
#define DDRPHYC_DX2DLLCR 0x24C
#define DDRPHYC_DX3GCR 0x280
#define DDRPHYC_DX3DLLCR 0x28C
/* DDR PHY Register fields */
#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_PTR0_TDLLSRST_OFFSET 0
#define DDRPHYC_PTR0_TDLLSRST_MASK GENMASK(5, 0)
#define DDRPHYC_PTR0_TDLLLOCK_OFFSET 6
#define DDRPHYC_PTR0_TDLLLOCK_MASK GENMASK(17, 6)
#define DDRPHYC_PTR0_TITMSRST_OFFSET 18
#define DDRPHYC_PTR0_TITMSRST_MASK GENMASK(21, 18)
#define DDRPHYC_ACIOCR_ACPDD BIT(3)
#define DDRPHYC_ACIOCR_ACPDR BIT(4)
#define DDRPHYC_ACIOCR_CKPDD_MASK GENMASK(10, 8)
#define DDRPHYC_ACIOCR_CKPDD_0 BIT(8)
#define DDRPHYC_ACIOCR_CKPDR_MASK GENMASK(13, 11)
#define DDRPHYC_ACIOCR_CKPDR_0 BIT(11)
#define DDRPHYC_ACIOCR_CSPDD_MASK GENMASK(21, 18)
#define DDRPHYC_ACIOCR_CSPDD_0 BIT(18)
#define DDRPHYC_ACIOCR_RSTPDD BIT(27)
#define DDRPHYC_ACIOCR_RSTPDR BIT(28)
#define DDRPHYC_DXCCR_DXPDD BIT(2)
#define DDRPHYC_DXCCR_DXPDR BIT(3)
#define DDRPHYC_DSGCR_CKEPDD_MASK GENMASK(19, 16)
#define DDRPHYC_DSGCR_CKEPDD_0 BIT(16)
#define DDRPHYC_DSGCR_ODTPDD_MASK GENMASK(23, 20)
#define DDRPHYC_DSGCR_ODTPDD_0 BIT(20)
#define DDRPHYC_DSGCR_NL2PD BIT(24)
#define DDRPHYC_ZQ0CRN_ZDATA_MASK GENMASK(27, 0)
#define DDRPHYC_ZQ0CRN_ZDATA_SHIFT 0
#define DDRPHYC_ZQ0CRN_ZDEN BIT(28)
#define DDRPHYC_ZQ0CRN_ZQPD BIT(31)
#define DDRPHYC_DXNGCR_DXEN BIT(0)
#define DDRPHYC_DXNDLLCR_DLLSRST BIT(30)
#define DDRPHYC_DXNDLLCR_DLLDIS BIT(31)
#define DDRPHYC_DXNDLLCR_SDPHASE_MASK GENMASK(17, 14)
#define DDRPHYC_DXNDLLCR_SDPHASE_SHIFT 14
void ddr_enable_clock(void);
#endif /* _RAM_STM32MP1_DDR_REGS_H */

12
include/drivers/st/stm32mp1_ram.h Normal file
View file

@ -0,0 +1,12 @@
/*
* Copyright (c) 2015-2018, STMicroelectronics - All Rights Reserved
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef _STM32MP1_RAM_H
#define _STM32MP1_RAM_H
int stm32mp1_ddr_probe(void);
#endif /* _STM32MP1_RAM_H */

11
plat/st/stm32mp1/bl2_plat_setup.c
View file

@ -22,6 +22,7 @@
#include <stm32mp1_private.h>
#include <stm32mp1_context.h>
#include <stm32mp1_pwr.h>
#include <stm32mp1_ram.h>
#include <stm32mp1_rcc.h>
#include <stm32mp1_reset.h>
#include <string.h>
@ -35,10 +36,18 @@ void bl2_el3_early_platform_setup(u_register_t arg0, u_register_t arg1,
void bl2_platform_setup(void)
{
int ret;
if (dt_check_pmic()) {
initialize_pmic();
}
ret = stm32mp1_ddr_probe();
if (ret < 0) {
ERROR("Invalid DDR init: error %d\n", ret);
panic();
}
INFO("BL2 runs SP_MIN setup\n");
}
@ -146,5 +155,7 @@ skip_console_init:
ERROR("Cannot save boot interface\n");
}
stm32mp1_arch_security_setup();
stm32mp1_io_setup();
}

1
plat/st/stm32mp1/include/stm32mp1_dt.h
View file

@ -35,6 +35,7 @@ void dt_fill_device_info(struct dt_node_info *info, int node);
int dt_get_node(struct dt_node_info *info, int offset, const char *compat);
int dt_get_stdout_uart_info(struct dt_node_info *info);
int dt_get_stdout_node_offset(void);
uint32_t dt_get_ddr_size(void);
const char *dt_get_board_model(void);
#endif /* __STM32MP1_DT_H__ */

2
plat/st/stm32mp1/include/stm32mp1_private.h
View file

@ -10,6 +10,8 @@
void stm32mp1_io_setup(void);
void configure_mmu(void);
void stm32mp1_arch_security_setup(void);
void stm32mp1_save_boot_ctx_address(uintptr_t address);
uintptr_t stm32mp1_get_boot_ctx_address(void);

8
plat/st/stm32mp1/platform.mk
View file

@ -37,10 +37,12 @@ PLAT_BL_COMMON_SOURCES += ${XLAT_TABLES_LIB_SRCS}
PLAT_BL_COMMON_SOURCES += lib/cpus/aarch32/cortex_a7.S
PLAT_BL_COMMON_SOURCES += ${LIBFDT_SRCS} \
drivers/arm/tzc/tzc400.c \
drivers/delay_timer/delay_timer.c \
drivers/delay_timer/generic_delay_timer.c \
drivers/st/clk/stm32mp1_clk.c \
drivers/st/clk/stm32mp1_clkfunc.c \
drivers/st/ddr/stm32mp1_ddr_helpers.c \
drivers/st/gpio/stm32_gpio.c \
drivers/st/pmic/stm32_i2c.c \
drivers/st/pmic/stm32mp1_pmic.c \
@ -48,13 +50,17 @@ PLAT_BL_COMMON_SOURCES += ${LIBFDT_SRCS} \
drivers/st/reset/stm32mp1_reset.c \
plat/st/stm32mp1/stm32mp1_context.c \
plat/st/stm32mp1/stm32mp1_dt.c \
plat/st/stm32mp1/stm32mp1_helper.S
plat/st/stm32mp1/stm32mp1_helper.S \
plat/st/stm32mp1/stm32mp1_security.c
BL2_SOURCES += drivers/io/io_dummy.c \
drivers/io/io_storage.c \
plat/st/stm32mp1/bl2_io_storage.c \
plat/st/stm32mp1/bl2_plat_setup.c
BL2_SOURCES += drivers/st/ddr/stm32mp1_ddr.c \
drivers/st/ddr/stm32mp1_ram.c
BL2_SOURCES += common/desc_image_load.c \
plat/st/stm32mp1/plat_bl2_mem_params_desc.c \
plat/st/stm32mp1/plat_image_load.c

8
plat/st/stm32mp1/stm32mp1_common.c
View file

@ -36,10 +36,18 @@
MT_SECURE | \
MT_EXECUTE_NEVER)
#define MAP_DDR MAP_REGION_FLAT(STM32MP1_DDR_BASE, \
STM32MP1_DDR_MAX_SIZE, \
MT_MEMORY | \
MT_RW | \
MT_SECURE | \
MT_EXECUTE_NEVER)
static const mmap_region_t stm32mp1_mmap[] = {
MAP_SRAM,
MAP_DEVICE1,
MAP_DEVICE2,
MAP_DDR,
{0}
};

20
plat/st/stm32mp1/stm32mp1_dt.c
View file

@ -11,7 +11,9 @@
#include <stm32_gpio.h>
#include <stm32mp1_clk.h>
#include <stm32mp1_clkfunc.h>
#include <stm32mp1_ddr.h>
#include <stm32mp1_dt.h>
#include <stm32mp1_ram.h>
#define DT_GPIO_BANK_SHIFT 12
#define DT_GPIO_BANK_MASK 0x1F000U
@ -440,6 +442,24 @@ int dt_get_stdout_node_offset(void)
return node;
}
/*******************************************************************************
* This function gets DDR size information from the DT.
* Returns value in bytes if success, and STM32MP1_DDR_SIZE_DFLT else.
******************************************************************************/
uint32_t dt_get_ddr_size(void)
{
int node;
node = fdt_node_offset_by_compatible(fdt, -1, DT_DDR_COMPAT);
if (node < 0) {
INFO("%s: Cannot read DDR node in DT\n", __func__);
return STM32MP1_DDR_SIZE_DFLT;
}
return fdt_read_uint32_default(node, "st,mem-size",
STM32MP1_DDR_SIZE_DFLT);
}
/*******************************************************************************
* This function retrieves board model from DT
* Returns string taken from model node, NULL otherwise

78
plat/st/stm32mp1/stm32mp1_security.c Normal file
View file

@ -0,0 +1,78 @@
/*
* Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <debug.h>
#include <dt-bindings/clock/stm32mp1-clks.h>
#include <mmio.h>
#include <stdint.h>
#include <stm32mp1_clk.h>
#include <stm32mp1_dt.h>
#include <stm32mp1_private.h>
#include <stm32mp1_rcc.h>
#include <tzc400.h>
#include "platform_def.h"
/*******************************************************************************
* Initialize the TrustZone Controller.
* Early initialization create only one region with full access to secure.
* This setting is used before and during DDR initialization.
******************************************************************************/
static void early_init_tzc400(void)
{
uint32_t rstsr, rst_standby;
rstsr = mmio_read_32(RCC_BASE + RCC_MP_RSTSCLRR);
/* No warning if return from (C)STANDBY */
rst_standby = rstsr &
(RCC_MP_RSTSCLRR_STDBYRSTF | RCC_MP_RSTSCLRR_CSTDBYRSTF);
if (stm32mp1_clk_is_enabled(TZC1) && (rst_standby == 0U)) {
WARN("TZC400 port 1 clock already enable\n");
}
if (stm32mp1_clk_is_enabled(TZC2) && (rst_standby == 0U)) {
WARN("TZC400 port 2 clock already enable\n");
}
if (stm32mp1_clk_enable(TZC1) != 0) {
ERROR("Cannot enable TZC1 clock\n");
panic();
}
if (stm32mp1_clk_enable(TZC2) != 0) {
ERROR("Cannot enable TZC2 clock\n");
panic();
}
tzc400_init(STM32MP1_TZC_BASE);
tzc400_disable_filters();
/*
* Region 1 set to cover Non-Secure DRAM at 0x8000_0000. Apply the
* same configuration to all filters in the TZC.
*/
tzc400_configure_region(STM32MP1_FILTER_BIT_ALL, 1,
STM32MP1_DDR_BASE,
STM32MP1_DDR_BASE +
(STM32MP1_DDR_MAX_SIZE - 1U),
TZC_REGION_S_RDWR,
TZC_REGION_ACCESS_RDWR(STM32MP1_TZC_SDMMC_ID));
/* Raise an exception if a NS device tries to access secure memory */
tzc400_set_action(TZC_ACTION_ERR);
tzc400_enable_filters();
}
/*******************************************************************************
* Initialize the secure environment. At this moment only the TrustZone
* Controller is initialized.
******************************************************************************/
void stm32mp1_arch_security_setup(void)
{
early_init_tzc400();
}