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u-boot/drivers/ddr/altera/sdram.c
Marek Vasut 04ae448997 ddr: altera: sdram: Introduce socfpga_sdram_config() structure 
Introduce this seemingly massive structure, which holds required values
of all the registers of the SDRAM controller. The idea here is to avoid
including the sdram.h header file, which is full of ad-hoc macros that
polute the global namespace. Once the cleanup of sdram.c would be complete
and all registers would be loaded from this new socfpga_sdram_config, a
board file will only pass this structure into the sdram.c . This will
hide all the horrors generated by QTS in the board directory.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:26 +02:00

762 lines
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/*
* Copyright Altera Corporation (C) 2014-2015
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <div64.h>
#include <watchdog.h>
#include <asm/arch/fpga_manager.h>
#include <asm/arch/sdram.h>
#include <asm/arch/system_manager.h>
#include <asm/io.h>
/*
* FIXME: This path is temporary until the SDRAM driver gets
* a proper thorough cleanup.
*/
#include "../../../board/altera/socfpga/qts/sdram_config.h"
DECLARE_GLOBAL_DATA_PTR;
struct sdram_prot_rule {
u64 sdram_start; /* SDRAM start address */
u64 sdram_end; /* SDRAM end address */
u32 rule; /* SDRAM protection rule number: 0-19 */
int valid; /* Rule valid or not? 1 - valid, 0 not*/
u32 security;
u32 portmask;
u32 result;
u32 lo_prot_id;
u32 hi_prot_id;
};
static struct socfpga_system_manager *sysmgr_regs =
(struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
static struct socfpga_sdr_ctrl *sdr_ctrl =
(struct socfpga_sdr_ctrl *)SDR_CTRLGRP_ADDRESS;
static struct socfpga_sdram_config {
u32 ctrl_cfg;
u32 dram_timing1;
u32 dram_timing2;
u32 dram_timing3;
u32 dram_timing4;
u32 lowpwr_timing;
u32 dram_addrw;
u32 static_cfg;
u32 fifo_cfg;
u32 mp_weight0;
u32 mp_weight1;
u32 mp_weight2;
u32 mp_weight3;
u32 mp_pacing0;
u32 mp_pacing1;
u32 mp_pacing2;
u32 mp_pacing3;
u32 mp_threshold0;
u32 mp_threshold1;
u32 mp_threshold2;
} sdram_config = {
.ctrl_cfg =
(CONFIG_HPS_SDR_CTRLCFG_CTRLCFG_MEMTYPE <<
SDR_CTRLGRP_CTRLCFG_MEMTYPE_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_CTRLCFG_MEMBL <<
SDR_CTRLGRP_CTRLCFG_MEMBL_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_CTRLCFG_ECCEN <<
SDR_CTRLGRP_CTRLCFG_ECCEN_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_CTRLCFG_ECCCORREN <<
SDR_CTRLGRP_CTRLCFG_ECCCORREN_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_CTRLCFG_REORDEREN <<
SDR_CTRLGRP_CTRLCFG_REORDEREN_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_CTRLCFG_STARVELIMIT <<
SDR_CTRLGRP_CTRLCFG_STARVELIMIT_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_CTRLCFG_DQSTRKEN <<
SDR_CTRLGRP_CTRLCFG_DQSTRKEN_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_CTRLCFG_NODMPINS <<
SDR_CTRLGRP_CTRLCFG_NODMPINS_LSB),
.dram_timing1 =
(CONFIG_HPS_SDR_CTRLCFG_DRAMTIMING1_TCWL <<
SDR_CTRLGRP_DRAMTIMING1_TCWL_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_DRAMTIMING1_AL <<
SDR_CTRLGRP_DRAMTIMING1_TAL_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_DRAMTIMING1_TCL <<
SDR_CTRLGRP_DRAMTIMING1_TCL_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_DRAMTIMING1_TRRD <<
SDR_CTRLGRP_DRAMTIMING1_TRRD_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_DRAMTIMING1_TFAW <<
SDR_CTRLGRP_DRAMTIMING1_TFAW_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_DRAMTIMING1_TRFC <<
SDR_CTRLGRP_DRAMTIMING1_TRFC_LSB),
.dram_timing2 =
(CONFIG_HPS_SDR_CTRLCFG_DRAMTIMING2_IF_TREFI <<
SDR_CTRLGRP_DRAMTIMING2_TREFI_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_DRAMTIMING2_IF_TRCD <<
SDR_CTRLGRP_DRAMTIMING2_TRCD_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_DRAMTIMING2_IF_TRP <<
SDR_CTRLGRP_DRAMTIMING2_TRP_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_DRAMTIMING2_IF_TWR <<
SDR_CTRLGRP_DRAMTIMING2_TWR_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_DRAMTIMING2_IF_TWTR <<
SDR_CTRLGRP_DRAMTIMING2_TWTR_LSB),
.dram_timing3 =
(CONFIG_HPS_SDR_CTRLCFG_DRAMTIMING3_TRTP <<
SDR_CTRLGRP_DRAMTIMING3_TRTP_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_DRAMTIMING3_TRAS <<
SDR_CTRLGRP_DRAMTIMING3_TRAS_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_DRAMTIMING3_TRC <<
SDR_CTRLGRP_DRAMTIMING3_TRC_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_DRAMTIMING3_TMRD <<
SDR_CTRLGRP_DRAMTIMING3_TMRD_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_DRAMTIMING3_TCCD <<
SDR_CTRLGRP_DRAMTIMING3_TCCD_LSB),
.dram_timing4 =
(CONFIG_HPS_SDR_CTRLCFG_DRAMTIMING4_SELFRFSHEXIT <<
SDR_CTRLGRP_DRAMTIMING4_SELFRFSHEXIT_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_DRAMTIMING4_PWRDOWNEXIT <<
SDR_CTRLGRP_DRAMTIMING4_PWRDOWNEXIT_LSB),
.lowpwr_timing =
(CONFIG_HPS_SDR_CTRLCFG_LOWPWRTIMING_AUTOPDCYCLES <<
SDR_CTRLGRP_LOWPWRTIMING_AUTOPDCYCLES_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_LOWPWRTIMING_CLKDISABLECYCLES <<
SDR_CTRLGRP_LOWPWRTIMING_CLKDISABLECYCLES_LSB),
.dram_addrw =
(CONFIG_HPS_SDR_CTRLCFG_DRAMADDRW_COLBITS <<
SDR_CTRLGRP_DRAMADDRW_COLBITS_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_DRAMADDRW_BANKBITS <<
SDR_CTRLGRP_DRAMADDRW_BANKBITS_LSB) |
((CONFIG_HPS_SDR_CTRLCFG_DRAMADDRW_CSBITS - 1) <<
SDR_CTRLGRP_DRAMADDRW_CSBITS_LSB),
.static_cfg =
(CONFIG_HPS_SDR_CTRLCFG_STATICCFG_MEMBL <<
SDR_CTRLGRP_STATICCFG_MEMBL_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_STATICCFG_USEECCASDATA <<
SDR_CTRLGRP_STATICCFG_USEECCASDATA_LSB),
.fifo_cfg =
(CONFIG_HPS_SDR_CTRLCFG_FIFOCFG_SYNCMODE <<
SDR_CTRLGRP_FIFOCFG_SYNCMODE_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_FIFOCFG_INCSYNC <<
SDR_CTRLGRP_FIFOCFG_INCSYNC_LSB),
.mp_weight0 =
(CONFIG_HPS_SDR_CTRLCFG_MPWIEIGHT_0_STATICWEIGHT_31_0 <<
SDR_CTRLGRP_MPWEIGHT_MPWEIGHT_0_STATICWEIGHT_31_0_LSB),
.mp_weight1 =
(CONFIG_HPS_SDR_CTRLCFG_MPWIEIGHT_1_STATICWEIGHT_49_32 <<
SDR_CTRLGRP_MPWEIGHT_MPWEIGHT_1_STATICWEIGHT_49_32_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_MPWIEIGHT_1_SUMOFWEIGHT_13_0 <<
SDR_CTRLGRP_MPWEIGHT_MPWEIGHT_1_SUMOFWEIGHTS_13_0_LSB),
.mp_weight2 =
(CONFIG_HPS_SDR_CTRLCFG_MPWIEIGHT_2_SUMOFWEIGHT_45_14 <<
SDR_CTRLGRP_MPWEIGHT_MPWEIGHT_2_SUMOFWEIGHTS_45_14_LSB),
.mp_weight3 =
(CONFIG_HPS_SDR_CTRLCFG_MPWIEIGHT_3_SUMOFWEIGHT_63_46 <<
SDR_CTRLGRP_MPWEIGHT_MPWEIGHT_3_SUMOFWEIGHTS_63_46_LSB),
.mp_pacing0 =
(CONFIG_HPS_SDR_CTRLCFG_MPPACING_0_THRESHOLD1_31_0 <<
SDR_CTRLGRP_MPPACING_MPPACING_0_THRESHOLD1_31_0_LSB),
.mp_pacing1 =
(CONFIG_HPS_SDR_CTRLCFG_MPPACING_1_THRESHOLD1_59_32 <<
SDR_CTRLGRP_MPPACING_MPPACING_1_THRESHOLD1_59_32_LSB) |
(CONFIG_HPS_SDR_CTRLCFG_MPPACING_1_THRESHOLD2_3_0 <<
SDR_CTRLGRP_MPPACING_MPPACING_1_THRESHOLD2_3_0_LSB),
.mp_pacing2 =
(CONFIG_HPS_SDR_CTRLCFG_MPPACING_2_THRESHOLD2_35_4 <<
SDR_CTRLGRP_MPPACING_MPPACING_2_THRESHOLD2_35_4_LSB),
.mp_pacing3 =
(CONFIG_HPS_SDR_CTRLCFG_MPPACING_3_THRESHOLD2_59_36 <<
SDR_CTRLGRP_MPPACING_MPPACING_3_THRESHOLD2_59_36_LSB),
.mp_threshold0 =
(CONFIG_HPS_SDR_CTRLCFG_MPTHRESHOLDRST_0_THRESHOLDRSTCYCLES_31_0 <<
SDR_CTRLGRP_MPTHRESHOLDRST_0_THRESHOLDRSTCYCLES_31_0_LSB),
.mp_threshold1 =
(CONFIG_HPS_SDR_CTRLCFG_MPTHRESHOLDRST_1_THRESHOLDRSTCYCLES_63_32 <<
SDR_CTRLGRP_MPTHRESHOLDRST_1_THRESHOLDRSTCYCLES_63_32_LSB),
.mp_threshold2 =
(CONFIG_HPS_SDR_CTRLCFG_MPTHRESHOLDRST_2_THRESHOLDRSTCYCLES_79_64 <<
SDR_CTRLGRP_MPTHRESHOLDRST_2_THRESHOLDRSTCYCLES_79_64_LSB),
};
/**
* get_errata_rows() - Up the number of DRAM rows to cover entire address space
*
* SDRAM Failure happens when accessing non-existent memory. Artificially
* increase the number of rows so that the memory controller thinks it has
* 4GB of RAM. This function returns such amount of rows.
*/
static int get_errata_rows(void)
{
/* Define constant for 4G memory - used for SDRAM errata workaround */
#define MEMSIZE_4G (4ULL * 1024ULL * 1024ULL * 1024ULL)
const unsigned long long memsize = MEMSIZE_4G;
const unsigned int cs = CONFIG_HPS_SDR_CTRLCFG_DRAMADDRW_CSBITS;
const unsigned int rows = CONFIG_HPS_SDR_CTRLCFG_DRAMADDRW_ROWBITS;
const unsigned int banks = CONFIG_HPS_SDR_CTRLCFG_DRAMADDRW_BANKBITS;
const unsigned int cols = CONFIG_HPS_SDR_CTRLCFG_DRAMADDRW_COLBITS;
const unsigned int width = 8;
unsigned long long newrows;
int bits, inewrowslog2;
debug("workaround rows - memsize %lld\n", memsize);
debug("workaround rows - cs %d\n", cs);
debug("workaround rows - width %d\n", width);
debug("workaround rows - rows %d\n", rows);
debug("workaround rows - banks %d\n", banks);
debug("workaround rows - cols %d\n", cols);
newrows = lldiv(memsize, cs * (width / 8));
debug("rows workaround - term1 %lld\n", newrows);
newrows = lldiv(newrows, (1 << banks) * (1 << cols));
debug("rows workaround - term2 %lld\n", newrows);
/*
* Compute the hamming weight - same as number of bits set.
* Need to see if result is ordinal power of 2 before
* attempting log2 of result.
*/
bits = generic_hweight32(newrows);
debug("rows workaround - bits %d\n", bits);
if (bits != 1) {
printf("SDRAM workaround failed, bits set %d\n", bits);
return rows;
}
if (newrows > UINT_MAX) {
printf("SDRAM workaround rangecheck failed, %lld\n", newrows);
return rows;
}
inewrowslog2 = __ilog2(newrows);
debug("rows workaround - ilog2 %d, %lld\n", inewrowslog2, newrows);
if (inewrowslog2 == -1) {
printf("SDRAM workaround failed, newrows %lld\n", newrows);
return rows;
}
return inewrowslog2;
}
/* SDRAM protection rules vary from 0-19, a total of 20 rules. */
static void sdram_set_rule(struct sdram_prot_rule *prule)
{
uint32_t lo_addr_bits;
uint32_t hi_addr_bits;
int ruleno = prule->rule;
/* Select the rule */
writel(ruleno, &sdr_ctrl->prot_rule_rdwr);
/* Obtain the address bits */
lo_addr_bits = (uint32_t)(((prule->sdram_start) >> 20ULL) & 0xFFF);
hi_addr_bits = (uint32_t)((((prule->sdram_end-1) >> 20ULL)) & 0xFFF);
debug("sdram set rule start %x, %lld\n", lo_addr_bits,
prule->sdram_start);
debug("sdram set rule end %x, %lld\n", hi_addr_bits,
prule->sdram_end);
/* Set rule addresses */
writel(lo_addr_bits | (hi_addr_bits << 12), &sdr_ctrl->prot_rule_addr);
/* Set rule protection ids */
writel(prule->lo_prot_id | (prule->hi_prot_id << 12),
&sdr_ctrl->prot_rule_id);
/* Set the rule data */
writel(prule->security | (prule->valid << 2) |
(prule->portmask << 3) | (prule->result << 13),
&sdr_ctrl->prot_rule_data);
/* write the rule */
writel(ruleno | (1L << 5), &sdr_ctrl->prot_rule_rdwr);
/* Set rule number to 0 by default */
writel(0, &sdr_ctrl->prot_rule_rdwr);
}
static void sdram_get_rule(struct sdram_prot_rule *prule)
{
uint32_t addr;
uint32_t id;
uint32_t data;
int ruleno = prule->rule;
/* Read the rule */
writel(ruleno, &sdr_ctrl->prot_rule_rdwr);
writel(ruleno | (1L << 6), &sdr_ctrl->prot_rule_rdwr);
/* Get the addresses */
addr = readl(&sdr_ctrl->prot_rule_addr);
prule->sdram_start = (addr & 0xFFF) << 20;
prule->sdram_end = ((addr >> 12) & 0xFFF) << 20;
/* Get the configured protection IDs */
id = readl(&sdr_ctrl->prot_rule_id);
prule->lo_prot_id = id & 0xFFF;
prule->hi_prot_id = (id >> 12) & 0xFFF;
/* Get protection data */
data = readl(&sdr_ctrl->prot_rule_data);
prule->security = data & 0x3;
prule->valid = (data >> 2) & 0x1;
prule->portmask = (data >> 3) & 0x3FF;
prule->result = (data >> 13) & 0x1;
}
static void sdram_set_protection_config(uint64_t sdram_start, uint64_t sdram_end)
{
struct sdram_prot_rule rule;
int rules;
/* Start with accepting all SDRAM transaction */
writel(0x0, &sdr_ctrl->protport_default);
/* Clear all protection rules for warm boot case */
memset(&rule, 0, sizeof(struct sdram_prot_rule));
for (rules = 0; rules < 20; rules++) {
rule.rule = rules;
sdram_set_rule(&rule);
}
/* new rule: accept SDRAM */
rule.sdram_start = sdram_start;
rule.sdram_end = sdram_end;
rule.lo_prot_id = 0x0;
rule.hi_prot_id = 0xFFF;
rule.portmask = 0x3FF;
rule.security = 0x3;
rule.result = 0;
rule.valid = 1;
rule.rule = 0;
/* set new rule */
sdram_set_rule(&rule);
/* default rule: reject everything */
writel(0x3ff, &sdr_ctrl->protport_default);
}
static void sdram_dump_protection_config(void)
{
struct sdram_prot_rule rule;
int rules;
debug("SDRAM Prot rule, default %x\n",
readl(&sdr_ctrl->protport_default));
for (rules = 0; rules < 20; rules++) {
sdram_get_rule(&rule);
debug("Rule %d, rules ...\n", rules);
debug(" sdram start %llx\n", rule.sdram_start);
debug(" sdram end %llx\n", rule.sdram_end);
debug(" low prot id %d, hi prot id %d\n",
rule.lo_prot_id,
rule.hi_prot_id);
debug(" portmask %x\n", rule.portmask);
debug(" security %d\n", rule.security);
debug(" result %d\n", rule.result);
debug(" valid %d\n", rule.valid);
}
}
/* Function to write to register and verify the write */
static unsigned sdram_write_verify(unsigned int *addr, unsigned reg_value)
{
#ifndef SDRAM_MMR_SKIP_VERIFY
unsigned reg_value1;
#endif
debug(" Write - Address ");
debug("0x%08x Data 0x%08x\n", (u32)addr, reg_value);
/* Write to register */
writel(reg_value, addr);
#ifndef SDRAM_MMR_SKIP_VERIFY
debug(" Read and verify...");
/* Read back the wrote value */
reg_value1 = readl(addr);
/* Indicate failure if value not matched */
if (reg_value1 != reg_value) {
debug("FAIL - Address 0x%08x Expected 0x%08x Data 0x%08x\n",
(u32)addr, reg_value, reg_value1);
return 1;
}
debug("correct!\n");
#endif /* SDRAM_MMR_SKIP_VERIFY */
return 0;
}
static void set_sdr_ctrlcfg(struct socfpga_sdram_config *cfg)
{
u32 addrorder;
u32 ctrl_cfg = cfg->ctrl_cfg;
debug("\nConfiguring CTRLCFG\n");
/*
* SDRAM Failure When Accessing Non-Existent Memory
* Set the addrorder field of the SDRAM control register
* based on the CSBITs setting.
*/
switch (CONFIG_HPS_SDR_CTRLCFG_DRAMADDRW_CSBITS) {
case 1:
addrorder = 0; /* chip, row, bank, column */
if (CONFIG_HPS_SDR_CTRLCFG_CTRLCFG_ADDRORDER != 0)
debug("INFO: Changing address order to 0 (chip, row, bank, column)\n");
break;
case 2:
addrorder = 2; /* row, chip, bank, column */
if (CONFIG_HPS_SDR_CTRLCFG_CTRLCFG_ADDRORDER != 2)
debug("INFO: Changing address order to 2 (row, chip, bank, column)\n");
break;
default:
addrorder = CONFIG_HPS_SDR_CTRLCFG_CTRLCFG_ADDRORDER;
break;
}
ctrl_cfg |= addrorder << SDR_CTRLGRP_CTRLCFG_ADDRORDER_LSB;
writel(ctrl_cfg, &sdr_ctrl->ctrl_cfg);
}
static void set_sdr_dram_timing(struct socfpga_sdram_config *cfg)
{
debug("Configuring DRAMTIMING1\n");
writel(cfg->dram_timing1, &sdr_ctrl->dram_timing1);
debug("Configuring DRAMTIMING2\n");
writel(cfg->dram_timing2, &sdr_ctrl->dram_timing2);
debug("Configuring DRAMTIMING3\n");
writel(cfg->dram_timing3, &sdr_ctrl->dram_timing3);
debug("Configuring DRAMTIMING4\n");
writel(cfg->dram_timing4, &sdr_ctrl->dram_timing4);
debug("Configuring LOWPWRTIMING\n");
writel(cfg->lowpwr_timing, &sdr_ctrl->lowpwr_timing);
}
static void set_sdr_addr_rw(struct socfpga_sdram_config *cfg)
{
/*
* SDRAM Failure When Accessing Non-Existent Memory
* Set SDR_CTRLGRP_DRAMADDRW_CSBITS_LSB to
* log2(number of chip select bits). Since there's only
* 1 or 2 chip selects, log2(1) => 0, and log2(2) => 1,
* which is the same as "chip selects" - 1.
*/
const int rows = get_errata_rows();
debug("Configuring DRAMADDRW\n");
writel(cfg->dram_addrw | (rows << SDR_CTRLGRP_DRAMADDRW_ROWBITS_LSB),
&sdr_ctrl->dram_addrw);
}
static void set_sdr_static_cfg(struct socfpga_sdram_config *cfg)
{
debug("Configuring STATICCFG\n");
writel(cfg->static_cfg, &sdr_ctrl->static_cfg);
}
static void set_sdr_fifo_cfg(struct socfpga_sdram_config *cfg)
{
debug("Configuring FIFOCFG\n");
writel(cfg->fifo_cfg, &sdr_ctrl->fifo_cfg);
}
static void set_sdr_mp_weight(struct socfpga_sdram_config *cfg)
{
debug("Configuring MPWEIGHT_MPWEIGHT_0\n");
writel(cfg->mp_weight0, &sdr_ctrl->mp_weight0);
writel(cfg->mp_weight1, &sdr_ctrl->mp_weight1);
writel(cfg->mp_weight2, &sdr_ctrl->mp_weight2);
writel(cfg->mp_weight3, &sdr_ctrl->mp_weight3);
}
static void set_sdr_mp_pacing(struct socfpga_sdram_config *cfg)
{
debug("Configuring MPPACING_MPPACING_0\n");
writel(cfg->mp_pacing0, &sdr_ctrl->mp_pacing0);
writel(cfg->mp_pacing1, &sdr_ctrl->mp_pacing1);
writel(cfg->mp_pacing2, &sdr_ctrl->mp_pacing2);
writel(cfg->mp_pacing3, &sdr_ctrl->mp_pacing3);
}
static void set_sdr_mp_threshold(struct socfpga_sdram_config *cfg)
{
debug("Configuring MPTHRESHOLDRST_MPTHRESHOLDRST_0\n");
writel(cfg->mp_threshold0, &sdr_ctrl->mp_threshold0);
writel(cfg->mp_threshold1, &sdr_ctrl->mp_threshold1);
writel(cfg->mp_threshold2, &sdr_ctrl->mp_threshold2);
}
/* Function to initialize SDRAM MMR */
unsigned sdram_mmr_init_full(unsigned int sdr_phy_reg)
{
unsigned long reg_value;
unsigned long status = 0;
struct socfpga_sdram_config *cfg = &sdram_config;
#if defined(CONFIG_HPS_SDR_CTRLCFG_DRAMADDRW_CSBITS) && \
defined(CONFIG_HPS_SDR_CTRLCFG_DRAMADDRW_ROWBITS) && \
defined(CONFIG_HPS_SDR_CTRLCFG_DRAMADDRW_BANKBITS) && \
defined(CONFIG_HPS_SDR_CTRLCFG_DRAMADDRW_COLBITS) && \
defined(CONFIG_HPS_SDR_CTRLCFG_DRAMADDRW_ROWBITS)
writel(CONFIG_HPS_SDR_CTRLCFG_DRAMADDRW_ROWBITS,
&sysmgr_regs->iswgrp_handoff[4]);
#endif
set_sdr_ctrlcfg(cfg);
set_sdr_dram_timing(cfg);
set_sdr_addr_rw(cfg);
debug("Configuring DRAMIFWIDTH\n");
clrsetbits_le32(&sdr_ctrl->dram_if_width,
SDR_CTRLGRP_DRAMIFWIDTH_IFWIDTH_MASK,
CONFIG_HPS_SDR_CTRLCFG_DRAMIFWIDTH_IFWIDTH <<
SDR_CTRLGRP_DRAMIFWIDTH_IFWIDTH_LSB);
debug("Configuring DRAMDEVWIDTH\n");
clrsetbits_le32(&sdr_ctrl->dram_dev_width,
SDR_CTRLGRP_DRAMDEVWIDTH_DEVWIDTH_MASK,
CONFIG_HPS_SDR_CTRLCFG_DRAMDEVWIDTH_DEVWIDTH <<
SDR_CTRLGRP_DRAMDEVWIDTH_DEVWIDTH_LSB);
debug("Configuring LOWPWREQ\n");
clrsetbits_le32(&sdr_ctrl->lowpwr_eq,
SDR_CTRLGRP_LOWPWREQ_SELFRFSHMASK_MASK,
CONFIG_HPS_SDR_CTRLCFG_LOWPWREQ_SELFRFSHMASK <<
SDR_CTRLGRP_LOWPWREQ_SELFRFSHMASK_LSB);
debug("Configuring DRAMINTR\n");
clrsetbits_le32(&sdr_ctrl->dram_intr, SDR_CTRLGRP_DRAMINTR_INTREN_MASK,
CONFIG_HPS_SDR_CTRLCFG_DRAMINTR_INTREN <<
SDR_CTRLGRP_DRAMINTR_INTREN_LSB);
set_sdr_static_cfg(cfg);
debug("Configuring CTRLWIDTH\n");
clrsetbits_le32(&sdr_ctrl->ctrl_width,
SDR_CTRLGRP_CTRLWIDTH_CTRLWIDTH_MASK,
CONFIG_HPS_SDR_CTRLCFG_CTRLWIDTH_CTRLWIDTH <<
SDR_CTRLGRP_CTRLWIDTH_CTRLWIDTH_LSB);
debug("Configuring PORTCFG\n");
clrsetbits_le32(&sdr_ctrl->port_cfg, SDR_CTRLGRP_PORTCFG_AUTOPCHEN_MASK,
CONFIG_HPS_SDR_CTRLCFG_PORTCFG_AUTOPCHEN <<
SDR_CTRLGRP_PORTCFG_AUTOPCHEN_LSB);
set_sdr_fifo_cfg(cfg);
debug("Configuring MPPRIORITY\n");
clrsetbits_le32(&sdr_ctrl->mp_priority,
SDR_CTRLGRP_MPPRIORITY_USERPRIORITY_MASK,
CONFIG_HPS_SDR_CTRLCFG_MPPRIORITY_USERPRIORITY <<
SDR_CTRLGRP_MPPRIORITY_USERPRIORITY_LSB);
set_sdr_mp_weight(cfg);
set_sdr_mp_pacing(cfg);
set_sdr_mp_threshold(cfg);
debug("Configuring PHYCTRL_PHYCTRL_0\n");
setbits_le32(&sdr_ctrl->phy_ctrl0,
CONFIG_HPS_SDR_CTRLCFG_PHYCTRL_PHYCTRL_0);
debug("Configuring CPORTWIDTH\n");
clrsetbits_le32(&sdr_ctrl->cport_width,
SDR_CTRLGRP_CPORTWIDTH_CMDPORTWIDTH_MASK,
CONFIG_HPS_SDR_CTRLCFG_CPORTWIDTH_CPORTWIDTH <<
SDR_CTRLGRP_CPORTWIDTH_CMDPORTWIDTH_LSB);
debug(" Write - Address ");
debug("0x%08x Data 0x%08x\n",
(unsigned)(&sdr_ctrl->cport_width),
(unsigned)reg_value);
reg_value = readl(&sdr_ctrl->cport_width);
debug(" Read value without verify 0x%08x\n", (unsigned)reg_value);
debug("Configuring CPORTWMAP\n");
clrsetbits_le32(&sdr_ctrl->cport_wmap,
SDR_CTRLGRP_CPORTWMAP_CPORTWFIFOMAP_MASK,
CONFIG_HPS_SDR_CTRLCFG_CPORTWMAP_CPORTWMAP <<
SDR_CTRLGRP_CPORTWMAP_CPORTWFIFOMAP_LSB);
debug(" Write - Address ");
debug("0x%08x Data 0x%08x\n",
(unsigned)(&sdr_ctrl->cport_wmap),
(unsigned)reg_value);
reg_value = readl(&sdr_ctrl->cport_wmap);
debug(" Read value without verify 0x%08x\n", (unsigned)reg_value);
debug("Configuring CPORTRMAP\n");
clrsetbits_le32(&sdr_ctrl->cport_rmap,
SDR_CTRLGRP_CPORTRMAP_CPORTRFIFOMAP_MASK,
CONFIG_HPS_SDR_CTRLCFG_CPORTRMAP_CPORTRMAP <<
SDR_CTRLGRP_CPORTRMAP_CPORTRFIFOMAP_LSB);
debug(" Write - Address ");
debug("0x%08x Data 0x%08x\n",
(unsigned)(&sdr_ctrl->cport_rmap),
(unsigned)reg_value);
reg_value = readl(&sdr_ctrl->cport_rmap);
debug(" Read value without verify 0x%08x\n", (unsigned)reg_value);
debug("Configuring RFIFOCMAP\n");
clrsetbits_le32(&sdr_ctrl->rfifo_cmap,
SDR_CTRLGRP_RFIFOCMAP_RFIFOCPORTMAP_MASK,
CONFIG_HPS_SDR_CTRLCFG_RFIFOCMAP_RFIFOCMAP <<
SDR_CTRLGRP_RFIFOCMAP_RFIFOCPORTMAP_LSB);
debug(" Write - Address ");
debug("0x%08x Data 0x%08x\n",
(unsigned)(&sdr_ctrl->rfifo_cmap),
(unsigned)reg_value);
reg_value = readl(&sdr_ctrl->rfifo_cmap);
debug(" Read value without verify 0x%08x\n", (unsigned)reg_value);
debug("Configuring WFIFOCMAP\n");
reg_value = readl(&sdr_ctrl->wfifo_cmap);
clrsetbits_le32(&sdr_ctrl->wfifo_cmap,
SDR_CTRLGRP_WFIFOCMAP_WFIFOCPORTMAP_MASK,
CONFIG_HPS_SDR_CTRLCFG_WFIFOCMAP_WFIFOCMAP <<
SDR_CTRLGRP_WFIFOCMAP_WFIFOCPORTMAP_LSB);
debug(" Write - Address ");
debug("0x%08x Data 0x%08x\n",
(unsigned)(&sdr_ctrl->wfifo_cmap),
(unsigned)reg_value);
reg_value = readl(&sdr_ctrl->wfifo_cmap);
debug(" Read value without verify 0x%08x\n", (unsigned)reg_value);
debug("Configuring CPORTRDWR\n");
clrsetbits_le32(&sdr_ctrl->cport_rdwr,
SDR_CTRLGRP_CPORTRDWR_CPORTRDWR_MASK,
CONFIG_HPS_SDR_CTRLCFG_CPORTRDWR_CPORTRDWR <<
SDR_CTRLGRP_CPORTRDWR_CPORTRDWR_LSB);
debug(" Write - Address ");
debug("0x%08x Data 0x%08x\n",
(unsigned)(&sdr_ctrl->cport_rdwr),
(unsigned)reg_value);
reg_value = readl(&sdr_ctrl->cport_rdwr);
debug(" Read value without verify 0x%08x\n", (unsigned)reg_value);
debug("Configuring DRAMODT\n");
clrsetbits_le32(&sdr_ctrl->dram_odt,
SDR_CTRLGRP_DRAMODT_READ_MASK,
CONFIG_HPS_SDR_CTRLCFG_DRAMODT_READ <<
SDR_CTRLGRP_DRAMODT_READ_LSB);
clrsetbits_le32(&sdr_ctrl->dram_odt,
SDR_CTRLGRP_DRAMODT_WRITE_MASK,
CONFIG_HPS_SDR_CTRLCFG_DRAMODT_WRITE <<
SDR_CTRLGRP_DRAMODT_WRITE_LSB);
/* saving this value to SYSMGR.ISWGRP.HANDOFF.FPGA2SDR */
writel(CONFIG_HPS_SDR_CTRLCFG_FPGAPORTRST,
&sysmgr_regs->iswgrp_handoff[3]);
/* only enable if the FPGA is programmed */
if (fpgamgr_test_fpga_ready()) {
if (sdram_write_verify(&sdr_ctrl->fpgaport_rst,
CONFIG_HPS_SDR_CTRLCFG_FPGAPORTRST) == 1) {
status = 1;
return 1;
}
}
/* Restore the SDR PHY Register if valid */
if (sdr_phy_reg != 0xffffffff)
writel(sdr_phy_reg, &sdr_ctrl->phy_ctrl0);
/***** Final step - apply configuration changes *****/
debug("Configuring STATICCFG_\n");
clrsetbits_le32(&sdr_ctrl->static_cfg, SDR_CTRLGRP_STATICCFG_APPLYCFG_MASK,
1 << SDR_CTRLGRP_STATICCFG_APPLYCFG_LSB);
debug(" Write - Address ");
debug("0x%08x Data 0x%08x\n",
(unsigned)(&sdr_ctrl->static_cfg),
(unsigned)reg_value);
reg_value = readl(&sdr_ctrl->static_cfg);
debug(" Read value without verify 0x%08x\n", (unsigned)reg_value);
sdram_set_protection_config(0, sdram_calculate_size());
sdram_dump_protection_config();
return status;
}
/*
* To calculate SDRAM device size based on SDRAM controller parameters.
* Size is specified in bytes.
*
* NOTE:
* This function is compiled and linked into the preloader and
* Uboot (there may be others). So if this function changes, the Preloader
* and UBoot must be updated simultaneously.
*/
unsigned long sdram_calculate_size(void)
{
unsigned long temp;
unsigned long row, bank, col, cs, width;
temp = readl(&sdr_ctrl->dram_addrw);
col = (temp & SDR_CTRLGRP_DRAMADDRW_COLBITS_MASK) >>
SDR_CTRLGRP_DRAMADDRW_COLBITS_LSB;
/* SDRAM Failure When Accessing Non-Existent Memory
* Use ROWBITS from Quartus/QSys to calculate SDRAM size
* since the FB specifies we modify ROWBITs to work around SDRAM
* controller issue.
*
* If the stored handoff value for rows is 0, it probably means
* the preloader is older than UBoot. Use the
* #define from the SOCEDS Tools per Crucible review
* uboot-socfpga-204. Note that this is not a supported
* configuration and is not tested. The customer
* should be using preloader and uboot built from the
* same tag.
*/
row = readl(&sysmgr_regs->iswgrp_handoff[4]);
if (row == 0)
row = CONFIG_HPS_SDR_CTRLCFG_DRAMADDRW_ROWBITS;
/* If the stored handoff value for rows is greater than
* the field width in the sdr.dramaddrw register then
* something is very wrong. Revert to using the the #define
* value handed off by the SOCEDS tool chain instead of
* using a broken value.
*/
if (row > 31)
row = CONFIG_HPS_SDR_CTRLCFG_DRAMADDRW_ROWBITS;
bank = (temp & SDR_CTRLGRP_DRAMADDRW_BANKBITS_MASK) >>
SDR_CTRLGRP_DRAMADDRW_BANKBITS_LSB;
/* SDRAM Failure When Accessing Non-Existent Memory
* Use CSBITs from Quartus/QSys to calculate SDRAM size
* since the FB specifies we modify CSBITs to work around SDRAM
* controller issue.
*/
cs = (temp & SDR_CTRLGRP_DRAMADDRW_CSBITS_MASK) >>
SDR_CTRLGRP_DRAMADDRW_CSBITS_LSB;
cs += 1;
cs = CONFIG_HPS_SDR_CTRLCFG_DRAMADDRW_CSBITS;
width = readl(&sdr_ctrl->dram_if_width);
/* ECC would not be calculated as its not addressible */
if (width == SDRAM_WIDTH_32BIT_WITH_ECC)
width = 32;
if (width == SDRAM_WIDTH_16BIT_WITH_ECC)
width = 16;
/* calculate the SDRAM size base on this info */
temp = 1 << (row + bank + col);
temp = temp * cs * (width / 8);
debug("sdram_calculate_memory returns %ld\n", temp);
return temp;
}
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