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upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/drivers/ddr/fsl/arm_ddr_gen3.c

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Driver/DDR: Add Freescale DDR driver for ARM Make PowerPC specific code conditional so ARM SoCs can reuse this driver. Add DDR3 driver for ARM. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
/*
* Copyright 2013 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*
* Derived from mpc85xx_ddr_gen3.c, removed all workarounds
*/
#include <common.h>
#include <asm/io.h>
#include <fsl_ddr_sdram.h>
#include <asm/processor.h>
#include <fsl_immap.h>
driver/ddr: Change Freescale ARM DDR driver to support both big and little endian Initially it was believed the DDR controller on Freescale ARM would have big endian. But some platform will have little endian. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
#include <fsl_ddr.h>
Driver/DDR: Add Freescale DDR driver for ARM Make PowerPC specific code conditional so ARM SoCs can reuse this driver. Add DDR3 driver for ARM. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
#if (CONFIG_CHIP_SELECTS_PER_CTRL > 4)
#error Invalid setting for CONFIG_CHIP_SELECTS_PER_CTRL
#endif
/*
* regs has the to-be-set values for DDR controller registers
* ctrl_num is the DDR controller number
* step: 0 goes through the initialization in one pass
* 1 sets registers and returns before enabling controller
* 2 resumes from step 1 and continues to initialize
* Dividing the initialization to two steps to deassert DDR reset signal
* to comply with JEDEC specs for RDIMMs.
*/
void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
unsigned int ctrl_num, int step)
{
unsigned int i, bus_width;
struct ccsr_ddr __iomem *ddr;
u32 temp_sdram_cfg;
u32 total_gb_size_per_controller;
int timeout;
switch (ctrl_num) {
case 0:
ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR;
break;
#if defined(CONFIG_SYS_FSL_DDR2_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 1)
case 1:
ddr = (void *)CONFIG_SYS_FSL_DDR2_ADDR;
break;
#endif
#if defined(CONFIG_SYS_FSL_DDR3_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 2)
case 2:
ddr = (void *)CONFIG_SYS_FSL_DDR3_ADDR;
break;
#endif
#if defined(CONFIG_SYS_FSL_DDR4_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 3)
case 3:
ddr = (void *)CONFIG_SYS_FSL_DDR4_ADDR;
break;
#endif
default:
printf("%s unexpected ctrl_num = %u\n", __func__, ctrl_num);
return;
}
if (step == 2)
goto step2;
if (regs->ddr_eor)
driver/ddr: Change Freescale ARM DDR driver to support both big and little endian Initially it was believed the DDR controller on Freescale ARM would have big endian. But some platform will have little endian. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
ddr_out32(&ddr->eor, regs->ddr_eor);
Driver/DDR: Add Freescale DDR driver for ARM Make PowerPC specific code conditional so ARM SoCs can reuse this driver. Add DDR3 driver for ARM. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
if (i == 0) {
driver/ddr: Change Freescale ARM DDR driver to support both big and little endian Initially it was believed the DDR controller on Freescale ARM would have big endian. But some platform will have little endian. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
ddr_out32(&ddr->cs0_bnds, regs->cs[i].bnds);
ddr_out32(&ddr->cs0_config, regs->cs[i].config);
ddr_out32(&ddr->cs0_config_2, regs->cs[i].config_2);
Driver/DDR: Add Freescale DDR driver for ARM Make PowerPC specific code conditional so ARM SoCs can reuse this driver. Add DDR3 driver for ARM. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
} else if (i == 1) {
driver/ddr: Change Freescale ARM DDR driver to support both big and little endian Initially it was believed the DDR controller on Freescale ARM would have big endian. But some platform will have little endian. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
ddr_out32(&ddr->cs1_bnds, regs->cs[i].bnds);
ddr_out32(&ddr->cs1_config, regs->cs[i].config);
ddr_out32(&ddr->cs1_config_2, regs->cs[i].config_2);
Driver/DDR: Add Freescale DDR driver for ARM Make PowerPC specific code conditional so ARM SoCs can reuse this driver. Add DDR3 driver for ARM. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
} else if (i == 2) {
driver/ddr: Change Freescale ARM DDR driver to support both big and little endian Initially it was believed the DDR controller on Freescale ARM would have big endian. But some platform will have little endian. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
ddr_out32(&ddr->cs2_bnds, regs->cs[i].bnds);
ddr_out32(&ddr->cs2_config, regs->cs[i].config);
ddr_out32(&ddr->cs2_config_2, regs->cs[i].config_2);
Driver/DDR: Add Freescale DDR driver for ARM Make PowerPC specific code conditional so ARM SoCs can reuse this driver. Add DDR3 driver for ARM. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
} else if (i == 3) {
driver/ddr: Change Freescale ARM DDR driver to support both big and little endian Initially it was believed the DDR controller on Freescale ARM would have big endian. But some platform will have little endian. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
ddr_out32(&ddr->cs3_bnds, regs->cs[i].bnds);
ddr_out32(&ddr->cs3_config, regs->cs[i].config);
ddr_out32(&ddr->cs3_config_2, regs->cs[i].config_2);
Driver/DDR: Add Freescale DDR driver for ARM Make PowerPC specific code conditional so ARM SoCs can reuse this driver. Add DDR3 driver for ARM. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
}
}
driver/ddr: Change Freescale ARM DDR driver to support both big and little endian Initially it was believed the DDR controller on Freescale ARM would have big endian. But some platform will have little endian. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
ddr_out32(&ddr->timing_cfg_3, regs->timing_cfg_3);
ddr_out32(&ddr->timing_cfg_0, regs->timing_cfg_0);
ddr_out32(&ddr->timing_cfg_1, regs->timing_cfg_1);
ddr_out32(&ddr->timing_cfg_2, regs->timing_cfg_2);
ddr_out32(&ddr->sdram_mode, regs->ddr_sdram_mode);
ddr_out32(&ddr->sdram_mode_2, regs->ddr_sdram_mode_2);
ddr_out32(&ddr->sdram_mode_3, regs->ddr_sdram_mode_3);
ddr_out32(&ddr->sdram_mode_4, regs->ddr_sdram_mode_4);
ddr_out32(&ddr->sdram_mode_5, regs->ddr_sdram_mode_5);
ddr_out32(&ddr->sdram_mode_6, regs->ddr_sdram_mode_6);
ddr_out32(&ddr->sdram_mode_7, regs->ddr_sdram_mode_7);
ddr_out32(&ddr->sdram_mode_8, regs->ddr_sdram_mode_8);
ddr_out32(&ddr->sdram_md_cntl, regs->ddr_sdram_md_cntl);
ddr_out32(&ddr->sdram_interval, regs->ddr_sdram_interval);
ddr_out32(&ddr->sdram_data_init, regs->ddr_data_init);
ddr_out32(&ddr->sdram_clk_cntl, regs->ddr_sdram_clk_cntl);
ddr_out32(&ddr->timing_cfg_4, regs->timing_cfg_4);
ddr_out32(&ddr->timing_cfg_5, regs->timing_cfg_5);
ddr_out32(&ddr->ddr_zq_cntl, regs->ddr_zq_cntl);
ddr_out32(&ddr->ddr_wrlvl_cntl, regs->ddr_wrlvl_cntl);
Driver/DDR: Add Freescale DDR driver for ARM Make PowerPC specific code conditional so ARM SoCs can reuse this driver. Add DDR3 driver for ARM. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
#ifndef CONFIG_SYS_FSL_DDR_EMU
/*
* Skip these two registers if running on emulator
* because emulator doesn't have skew between bytes.
*/
if (regs->ddr_wrlvl_cntl_2)
driver/ddr: Change Freescale ARM DDR driver to support both big and little endian Initially it was believed the DDR controller on Freescale ARM would have big endian. But some platform will have little endian. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
ddr_out32(&ddr->ddr_wrlvl_cntl_2, regs->ddr_wrlvl_cntl_2);
Driver/DDR: Add Freescale DDR driver for ARM Make PowerPC specific code conditional so ARM SoCs can reuse this driver. Add DDR3 driver for ARM. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
if (regs->ddr_wrlvl_cntl_3)
driver/ddr: Change Freescale ARM DDR driver to support both big and little endian Initially it was believed the DDR controller on Freescale ARM would have big endian. But some platform will have little endian. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
ddr_out32(&ddr->ddr_wrlvl_cntl_3, regs->ddr_wrlvl_cntl_3);
Driver/DDR: Add Freescale DDR driver for ARM Make PowerPC specific code conditional so ARM SoCs can reuse this driver. Add DDR3 driver for ARM. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
#endif
driver/ddr: Change Freescale ARM DDR driver to support both big and little endian Initially it was believed the DDR controller on Freescale ARM would have big endian. But some platform will have little endian. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
ddr_out32(&ddr->ddr_sr_cntr, regs->ddr_sr_cntr);
ddr_out32(&ddr->ddr_sdram_rcw_1, regs->ddr_sdram_rcw_1);
ddr_out32(&ddr->ddr_sdram_rcw_2, regs->ddr_sdram_rcw_2);
ddr_out32(&ddr->ddr_cdr1, regs->ddr_cdr1);
fsl/sleep: updated the deep sleep framework for QorIQ platforms With the introducing of generic board and ARM-based cores, current deep sleep framework doesn't work anymore. This patch will convert the current framework to adapt this change. Basically it does: 1. Converts all the Freescale's DDR driver to support deep sleep. 2. Added basic framework support for ARM-based and PPC-based cores separately. Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
10 years ago
#ifdef CONFIG_DEEP_SLEEP
if (is_warm_boot()) {
ddr_out32(&ddr->sdram_cfg_2,
regs->ddr_sdram_cfg_2 & ~SDRAM_CFG2_D_INIT);
ddr_out32(&ddr->init_addr, CONFIG_SYS_SDRAM_BASE);
ddr_out32(&ddr->init_ext_addr, DDR_INIT_ADDR_EXT_UIA);
/* DRAM VRef will not be trained */
ddr_out32(&ddr->ddr_cdr2,
regs->ddr_cdr2 & ~DDR_CDR2_VREF_TRAIN_EN);
} else
#endif
{
ddr_out32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2);
ddr_out32(&ddr->init_addr, regs->ddr_init_addr);
ddr_out32(&ddr->init_ext_addr, regs->ddr_init_ext_addr);
ddr_out32(&ddr->ddr_cdr2, regs->ddr_cdr2);
}
driver/ddr: Change Freescale ARM DDR driver to support both big and little endian Initially it was believed the DDR controller on Freescale ARM would have big endian. But some platform will have little endian. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
ddr_out32(&ddr->err_disable, regs->err_disable);
ddr_out32(&ddr->err_int_en, regs->err_int_en);
Driver/DDR: Add Freescale DDR driver for ARM Make PowerPC specific code conditional so ARM SoCs can reuse this driver. Add DDR3 driver for ARM. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
for (i = 0; i < 32; i++) {
if (regs->debug[i]) {
debug("Write to debug_%d as %08x\n", i + 1,
regs->debug[i]);
driver/ddr: Change Freescale ARM DDR driver to support both big and little endian Initially it was believed the DDR controller on Freescale ARM would have big endian. But some platform will have little endian. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
ddr_out32(&ddr->debug[i], regs->debug[i]);
Driver/DDR: Add Freescale DDR driver for ARM Make PowerPC specific code conditional so ARM SoCs can reuse this driver. Add DDR3 driver for ARM. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
}
}
/*
* For RDIMMs, JEDEC spec requires clocks to be stable before reset is
* deasserted. Clocks start when any chip select is enabled and clock
* control register is set. Because all DDR components are connected to
* one reset signal, this needs to be done in two steps. Step 1 is to
* get the clocks started. Step 2 resumes after reset signal is
* deasserted.
*/
if (step == 1) {
udelay(200);
return;
}
step2:
/* Set, but do not enable the memory */
temp_sdram_cfg = regs->ddr_sdram_cfg;
temp_sdram_cfg &= ~(SDRAM_CFG_MEM_EN);
driver/ddr: Change Freescale ARM DDR driver to support both big and little endian Initially it was believed the DDR controller on Freescale ARM would have big endian. But some platform will have little endian. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
ddr_out32(&ddr->sdram_cfg, temp_sdram_cfg);
Driver/DDR: Add Freescale DDR driver for ARM Make PowerPC specific code conditional so ARM SoCs can reuse this driver. Add DDR3 driver for ARM. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
/*
* 500 painful micro-seconds must elapse between
* the DDR clock setup and the DDR config enable.
* DDR2 need 200 us, and DDR3 need 500 us from spec,
* we choose the max, that is 500 us for all of case.
*/
udelay(500);
asm volatile("dsb sy;isb");
fsl/sleep: updated the deep sleep framework for QorIQ platforms With the introducing of generic board and ARM-based cores, current deep sleep framework doesn't work anymore. This patch will convert the current framework to adapt this change. Basically it does: 1. Converts all the Freescale's DDR driver to support deep sleep. 2. Added basic framework support for ARM-based and PPC-based cores separately. Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
10 years ago
#ifdef CONFIG_DEEP_SLEEP
if (is_warm_boot()) {
/* enter self-refresh */
temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg_2);
temp_sdram_cfg |= SDRAM_CFG2_FRC_SR;
ddr_out32(&ddr->sdram_cfg_2, temp_sdram_cfg);
/* do board specific memory setup */
board_mem_sleep_setup();
temp_sdram_cfg = (ddr_in32(&ddr->sdram_cfg) | SDRAM_CFG_BI);
} else
#endif
temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg) & ~SDRAM_CFG_BI;
Driver/DDR: Add Freescale DDR driver for ARM Make PowerPC specific code conditional so ARM SoCs can reuse this driver. Add DDR3 driver for ARM. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
/* Let the controller go */
driver/ddr: Change Freescale ARM DDR driver to support both big and little endian Initially it was believed the DDR controller on Freescale ARM would have big endian. But some platform will have little endian. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
ddr_out32(&ddr->sdram_cfg, temp_sdram_cfg | SDRAM_CFG_MEM_EN);
Driver/DDR: Add Freescale DDR driver for ARM Make PowerPC specific code conditional so ARM SoCs can reuse this driver. Add DDR3 driver for ARM. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
asm volatile("dsb sy;isb");
total_gb_size_per_controller = 0;
for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
if (!(regs->cs[i].config & 0x80000000))
continue;
total_gb_size_per_controller += 1 << (
((regs->cs[i].config >> 14) & 0x3) + 2 +
((regs->cs[i].config >> 8) & 0x7) + 12 +
((regs->cs[i].config >> 0) & 0x7) + 8 +
3 - ((regs->ddr_sdram_cfg >> 19) & 0x3) -
26); /* minus 26 (count of 64M) */
}
if (regs->cs[0].config & 0x20000000) {
/* 2-way interleaving */
total_gb_size_per_controller <<= 1;
}
/*
* total memory / bus width = transactions needed
* transactions needed / data rate = seconds
* to add plenty of buffer, double the time
* For example, 2GB on 666MT/s 64-bit bus takes about 402ms
* Let's wait for 800ms
*/
driver/ddr/freescale: Fix DDR3 driver for ARM Reading DDR register should use ddr_in32() for proper endianess. This patch fixes incorrect waiting time for ARM platforms. Signed-off-by: York Sun <yorksun@freescale.com>
10 years ago
bus_width = 3 - ((ddr_in32(&ddr->sdram_cfg) & SDRAM_CFG_DBW_MASK)
Driver/DDR: Add Freescale DDR driver for ARM Make PowerPC specific code conditional so ARM SoCs can reuse this driver. Add DDR3 driver for ARM. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
>> SDRAM_CFG_DBW_SHIFT);
timeout = ((total_gb_size_per_controller << (6 - bus_width)) * 100 /
driver/ddr/fsl: Add support for multiple DDR clocks Controller number is passed for function calls to support individual DDR clock, depending on SoC implementation. It is backward compatible with exising platforms. Multiple clocks have been verifyed on LS2085A emulator. Signed-off-by: York Sun <yorksun@freescale.com>
10 years ago
(get_ddr_freq(ctrl_num) >> 20)) << 1;
Driver/DDR: Add Freescale DDR driver for ARM Make PowerPC specific code conditional so ARM SoCs can reuse this driver. Add DDR3 driver for ARM. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
total_gb_size_per_controller >>= 4; /* shift down to gb size */
debug("total %d GB\n", total_gb_size_per_controller);
debug("Need to wait up to %d * 10ms\n", timeout);
/* Poll DDR_SDRAM_CFG_2[D_INIT] bit until auto-data init is done. */
driver/ddr: Change Freescale ARM DDR driver to support both big and little endian Initially it was believed the DDR controller on Freescale ARM would have big endian. But some platform will have little endian. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
while ((ddr_in32(&ddr->sdram_cfg_2) & SDRAM_CFG2_D_INIT) &&
Driver/DDR: Add Freescale DDR driver for ARM Make PowerPC specific code conditional so ARM SoCs can reuse this driver. Add DDR3 driver for ARM. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
(timeout >= 0)) {
udelay(10000); /* throttle polling rate */
timeout--;
}
if (timeout <= 0)
printf("Waiting for D_INIT timeout. Memory may not work.\n");
fsl/sleep: updated the deep sleep framework for QorIQ platforms With the introducing of generic board and ARM-based cores, current deep sleep framework doesn't work anymore. This patch will convert the current framework to adapt this change. Basically it does: 1. Converts all the Freescale's DDR driver to support deep sleep. 2. Added basic framework support for ARM-based and PPC-based cores separately. Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
10 years ago
#ifdef CONFIG_DEEP_SLEEP
if (is_warm_boot()) {
/* exit self-refresh */
temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg_2);
temp_sdram_cfg &= ~SDRAM_CFG2_FRC_SR;
ddr_out32(&ddr->sdram_cfg_2, temp_sdram_cfg);
}
#endif
Driver/DDR: Add Freescale DDR driver for ARM Make PowerPC specific code conditional so ARM SoCs can reuse this driver. Add DDR3 driver for ARM. Signed-off-by: York Sun <yorksun@freescale.com>
11 years ago
}