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Based on populated DIMMs, automatically select from cs0_cs1_cs2_cs3 or cs0_cs1 interleaving, or non-interleaving if not available. Fix the message of interleaving disabled if controller interleaving is enabled but DIMMs don't support it. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
412 lines
20 KiB
Plaintext
412 lines
20 KiB
Plaintext
Table of interleaving 2-4 controllers
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=====================================
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+--------------+-----------------------------------------------------------+
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|Configuration | Memory Controller |
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| | 1 2 3 4 |
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|--------------+--------------+--------------+-----------------------------+
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| Two memory | Not Intlv'ed | Not Intlv'ed | |
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| complexes +--------------+--------------+ |
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| | 2-way Intlv'ed | |
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|--------------+--------------+--------------+--------------+ |
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| | Not Intlv'ed | Not Intlv'ed | Not Intlv'ed | |
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| Three memory +--------------+--------------+--------------+ |
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| complexes | 2-way Intlv'ed | Not Intlv'ed | |
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| +-----------------------------+--------------+ |
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| | 3-way Intlv'ed | |
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+--------------+--------------+--------------+--------------+--------------+
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| | Not Intlv'ed | Not Intlv'ed | Not Intlv'ed | Not Intlv'ed |
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| Four memory +--------------+--------------+--------------+--------------+
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| complexes | 2-way Intlv'ed | 2-way Intlv'ed |
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| +-----------------------------+-----------------------------+
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| | 4-way Intlv'ed |
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+--------------+-----------------------------------------------------------+
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Table of 2-way interleaving modes supported in cpu/8xxx/ddr/
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======================================================
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+-------------+---------------------------------------------------------+
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| | Rank Interleaving |
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| +--------+-----------+-----------+------------+-----------+
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|Memory | | | | 2x2 | 4x1 |
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|Controller | None | 2x1 lower | 2x1 upper | {CS0+CS1}, | {CS0+CS1+ |
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|Interleaving | | {CS0+CS1} | {CS2+CS3} | {CS2+CS3} | CS2+CS3} |
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+-------------+--------+-----------+-----------+------------+-----------+
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|None | Yes | Yes | Yes | Yes | Yes |
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+-------------+--------+-----------+-----------+------------+-----------+
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|Cacheline | Yes | Yes | No | No, Only(*)| Yes |
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| |CS0 Only| | | {CS0+CS1} | |
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+-------------+--------+-----------+-----------+------------+-----------+
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|Page | Yes | Yes | No | No, Only(*)| Yes |
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| |CS0 Only| | | {CS0+CS1} | |
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+-------------+--------+-----------+-----------+------------+-----------+
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|Bank | Yes | Yes | No | No, Only(*)| Yes |
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| |CS0 Only| | | {CS0+CS1} | |
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+-------------+--------+-----------+-----------+------------+-----------+
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|Superbank | No | Yes | No | No, Only(*)| Yes |
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| | | | | {CS0+CS1} | |
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+-------------+--------+-----------+-----------+------------+-----------+
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(*) Although the hardware can be configured with memory controller
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interleaving using "2x2" rank interleaving, it only interleaves {CS0+CS1}
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from each controller. {CS2+CS3} on each controller are only rank
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interleaved on that controller.
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For memory controller interleaving, identical DIMMs are suggested. Software
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doesn't check the size or organization of interleaved DIMMs.
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The ways to configure the ddr interleaving mode
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==============================================
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1. In board header file(e.g.MPC8572DS.h), add default interleaving setting
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under "CONFIG_EXTRA_ENV_SETTINGS", like:
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#define CONFIG_EXTRA_ENV_SETTINGS \
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"hwconfig=fsl_ddr:ctlr_intlv=bank" \
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......
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2. Run u-boot "setenv" command to configure the memory interleaving mode.
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Either numerical or string value is accepted.
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# disable memory controller interleaving
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setenv hwconfig "fsl_ddr:ctlr_intlv=null"
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# cacheline interleaving
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setenv hwconfig "fsl_ddr:ctlr_intlv=cacheline"
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# page interleaving
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setenv hwconfig "fsl_ddr:ctlr_intlv=page"
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# bank interleaving
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setenv hwconfig "fsl_ddr:ctlr_intlv=bank"
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# superbank
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setenv hwconfig "fsl_ddr:ctlr_intlv=superbank"
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# 1KB 3-way interleaving
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setenv hwconfig "fsl_ddr:ctlr_intlv=3way_1KB"
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# 4KB 3-way interleaving
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setenv hwconfig "fsl_ddr:ctlr_intlv=3way_4KB"
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# 8KB 3-way interleaving
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setenv hwconfig "fsl_ddr:ctlr_intlv=3way_8KB"
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# disable bank (chip-select) interleaving
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setenv hwconfig "fsl_ddr:bank_intlv=null"
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# bank(chip-select) interleaving cs0+cs1
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setenv hwconfig "fsl_ddr:bank_intlv=cs0_cs1"
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# bank(chip-select) interleaving cs2+cs3
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setenv hwconfig "fsl_ddr:bank_intlv=cs2_cs3"
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# bank(chip-select) interleaving (cs0+cs1) and (cs2+cs3) (2x2)
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setenv hwconfig "fsl_ddr:bank_intlv=cs0_cs1_and_cs2_cs3"
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# bank(chip-select) interleaving (cs0+cs1+cs2+cs3) (4x1)
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setenv hwconfig "fsl_ddr:bank_intlv=cs0_cs1_cs2_cs3"
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# bank(chip-select) interleaving (auto)
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setenv hwconfig "fsl_ddr:bank_intlv=auto"
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This auto mode only select from cs0_cs1_cs2_cs3, cs0_cs1, null dependings
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on DIMMs.
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Memory controller address hashing
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==================================
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If the DDR controller supports address hashing, it can be enabled by hwconfig.
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Syntax is:
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hwconfig=fsl_ddr:addr_hash=true
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Memory controller ECC on/off
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============================
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If ECC is enabled in board configuratoin file, i.e. #define CONFIG_DDR_ECC,
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ECC can be turned on/off by hwconfig.
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Syntax is
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hwconfig=fsl_ddr:ecc=off
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Memory testing options for mpc85xx
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==================================
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1. Memory test can be done once U-boot prompt comes up using mtest, or
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2. Memory test can be done with Power-On-Self-Test function, activated at
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compile time.
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In order to enable the POST memory test, CONFIG_POST needs to be
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defined in board configuraiton header file. By default, POST memory test
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performs a fast test. A slow test can be enabled by changing the flag at
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compiling time. To test memory bigger than 2GB, 36BIT support is needed.
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Memory is tested within a 2GB window. TLBs are used to map the virtual 2GB
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window to physical address so that all physical memory can be tested.
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Combination of hwconfig
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=======================
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Hwconfig can be combined with multiple parameters, for example, on a supported
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platform
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hwconfig=fsl_ddr:addr_hash=true,ctlr_intlv=cacheline,bank_intlv=cs0_cs1_cs2_cs3,ecc=on
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Table for dynamic ODT for DDR3
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==============================
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For single-slot system with quad-rank DIMM and dual-slot system, dynamic ODT may
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be needed, depending on the configuration. The numbers in the following tables are
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in Ohms.
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* denotes dynamic ODT
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Two slots system
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+-----------------------+----------+---------------+-----------------------------+-----------------------------+
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| Configuration | |DRAM controller| Slot 1 | Slot 2 |
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+-----------+-----------+----------+-------+-------+--------------+--------------+--------------+--------------+
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| | | | | | Rank 1 | Rank 2 | Rank 1 | Rank 2 |
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+ Slot 1 | Slot 2 |Write/Read| Write | Read |-------+------+-------+------+-------+------+-------+------+
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| | | | | | Write | Read | Write | Read | Write | Read | Write | Read |
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+-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | | Slot 1 | off | 75 | 120 | off | off | off | off | off | 30 | 30 |
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| Dual Rank | Dual Rank |----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | | Slot 2 | off | 75 | off | off | 30 | 30 | 120 | off | off | off |
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+-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | | Slot 1 | off | 75 | 120 | off | off | off | 20 | 20 | | |
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| Dual Rank |Single Rank|----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | | Slot 2 | off | 75 | off | off | 20 | 20 | 120 *| off | | |
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+-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | | Slot 1 | off | 75 | 120 *| off | | | off | off | 20 | 20 |
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|Single Rank| Dual Rank |----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | | Slot 2 | off | 75 | 20 | 20 | | | 120 | off | off | off |
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+-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | | Slot 1 | off | 75 | 120 *| off | | | 30 | 30 | | |
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|Single Rank|Single Rank|----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | | Slot 2 | off | 75 | 30 | 30 | | | 120 *| off | | |
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+-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| Dual Rank | Empty | Slot 1 | off | 75 | 40 | off | off | off | | | | |
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+-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| Empty | Dual Rank | Slot 2 | off | 75 | | | | | 40 | off | off | off |
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+-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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|Single Rank| Empty | Slot 1 | off | 75 | 40 | off | | | | | | |
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+-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| Empty |Single Rank| Slot 2 | off | 75 | | | | | 40 | off | | |
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+-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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Single slot system
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+-------------+------------+---------------+-----------------------------+-----------------------------+
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| | |DRAM controller| Rank 1 | Rank 2 | Rank 3 | Rank 4 |
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|Configuration| Write/Read |-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | | Write | Read | Write | Read | Write | Read | Write | Read | Write | Read |
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+-------------+------------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | R1 | off | 75 | 120 *| off | off | off | 20 | 20 | off | off |
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| |------------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | R2 | off | 75 | off | 20 | 120 | off | 20 | 20 | off | off |
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| Quad Rank |------------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | R3 | off | 75 | 20 | 20 | off | off | 120 *| off | off | off |
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| |------------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | R4 | off | 75 | 20 | 20 | off | off | off | 20 | 120 | off |
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+-------------+------------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | R1 | off | 75 | 40 | off | off | off |
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| Dual Rank |------------+-------+-------+-------+------+-------+------+
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| | R2 | off | 75 | 40 | off | off | off |
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+-------------+------------+-------+-------+-------+------+-------+------+
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| Single Rank | R1 | off | 75 | 40 | off |
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+-------------+------------+-------+-------+-------+------+
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Reference http://www.xrosstalkmag.com/mag_issues/xrosstalk_oct08_final.pdf
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http://download.micron.com/pdf/technotes/ddr3/tn4108_ddr3_design_guide.pdf
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Table for ODT for DDR2
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======================
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Two slots system
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+-----------------------+----------+---------------+-----------------------------+-----------------------------+
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| Configuration | |DRAM controller| Slot 1 | Slot 2 |
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+-----------+-----------+----------+-------+-------+--------------+--------------+--------------+--------------+
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| | | | | | Rank 1 | Rank 2 | Rank 1 | Rank 2 |
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+ Slot 1 | Slot 2 |Write/Read| Write | Read |-------+------+-------+------+-------+------+-------+------+
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| | | | | | Write | Read | Write | Read | Write | Read | Write | Read |
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+-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | | Slot 1 | off | 150 | off | off | off | off | 75 | 75 | off | off |
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| Dual Rank | Dual Rank |----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | | Slot 2 | off | 150 | 75 | 75 | off | off | off | off | off | off |
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+-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | | Slot 1 | off | 150 | off | off | off | off | 75 | 75 | | |
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| Dual Rank |Single Rank|----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | | Slot 2 | off | 150 | 75 | 75 | off | off | off | off | | |
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+-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | | Slot 1 | off | 150 | off | off | | | 75 | 75 | off | off |
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|Single Rank| Dual Rank |----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | | Slot 2 | off | 150 | 75 | 75 | | | off | off | off | off |
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+-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | | Slot 1 | off | 150 | off | off | | | 75 | 75 | | |
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|Single Rank|Single Rank|----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| | | Slot 2 | off | 150 | 75 | 75 | | | off | off | | |
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+-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| Dual Rank | Empty | Slot 1 | off | 75 | 150 | off | off | off | | | | |
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+-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| Empty | Dual Rank | Slot 2 | off | 75 | | | | | 150 | off | off | off |
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+-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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|Single Rank| Empty | Slot 1 | off | 75 | 150 | off | | | | | | |
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+-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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| Empty |Single Rank| Slot 2 | off | 75 | | | | | 150 | off | | |
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+-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
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Single slot system
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+-------------+------------+---------------+-----------------------------+
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| | |DRAM controller| Rank 1 | Rank 2 |
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|Configuration| Write/Read |-------+-------+-------+------+-------+------+
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| | | Write | Read | Write | Read | Write | Read |
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+-------------+------------+-------+-------+-------+------+-------+------+
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| | R1 | off | 75 | 150 | off | off | off |
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| Dual Rank |------------+-------+-------+-------+------+-------+------+
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| | R2 | off | 75 | 150 | off | off | off |
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+-------------+------------+-------+-------+-------+------+-------+------+
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| Single Rank | R1 | off | 75 | 150 | off |
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+-------------+------------+-------+-------+-------+------+
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Reference http://www.samsung.com/global/business/semiconductor/products/dram/downloads/applicationnote/ddr2_odt_control_200603.pdf
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Interactive DDR debugging
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===========================
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For DDR parameter tuning up and debugging, the interactive DDR debugging can
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be activated by saving an environment variable "ddr_interactive". The value
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doesn't matter. Once activated, U-boot prompts "FSL DDR>" before enabling DDR
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controller. The available commands can be seen by typing "help".
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The example flow of using interactive debugging is
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type command "compute" to calculate the parameters from the default
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type command "print" with arguments to show SPD, options, registers
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type command "edit" with arguments to change any if desired
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type command "go" to continue calculation and enable DDR controller
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type command "reset" to reset the board
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type command "recompute" to reload SPD and start over
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Note, check "next_step" to show the flow. For example, after edit opts, the
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next_step is STEP_ASSIGN_ADDRESSES. After editing registers, the next_step is
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STEP_PROGRAM_REGS. Upon issuing command "go", DDR controller will be enabled
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with current setting without further calculation.
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The detail syntax for each commands are
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print [c<n>] [d<n>] [spd] [dimmparms] [commonparms] [opts] [addresses] [regs]
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c<n> - the controller number, eg. c0, c1
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d<n> - the DIMM number, eg. d0, d1
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spd - print SPD data
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dimmparms - DIMM parameters, calculated from SPD
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commonparms - lowest common parameters for all DIMMs
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opts - options
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addresses - address assignment (not implemented yet)
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regs - controller registers
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edit <c#> <d#> <spd|dimmparms|commonparms|opts|addresses|regs> <element> <value>
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c<n> - the controller number, eg. c0, c1
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d<n> - the DIMM number, eg. d0, d1
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spd - print SPD data
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dimmparms - DIMM parameters, calculated from SPD
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commonparms - lowest common parameters for all DIMMs
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opts - options
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addresses - address assignment (not implemented yet)
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regs - controller registers
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<element> - name of the modified element
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byte number if the object is SPD
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<value> - decimal or heximal (prefixed with 0x) numbers
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reset
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no arguement - reset the board
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recompute
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no argument - reload SPD and start over
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compute
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no argument - recompute from current next_step
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next_step
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no argument - show current next_step
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help
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no argument - print a list of all commands
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go
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no argument - program memory controller(s) and continue with U-boot
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Examples of debugging flow
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FSL DDR>compute
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Detected UDIMM UG51U6400N8SU-ACF
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SL DDR>print
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print [c<n>] [d<n>] [spd] [dimmparms] [commonparms] [opts] [addresses] [regs]
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FSL DDR>print dimmparms
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DIMM parameters: Controller=0 DIMM=0
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DIMM organization parameters:
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module part name = UG51U6400N8SU-ACF
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rank_density = 2147483648 bytes (2048 megabytes)
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capacity = 4294967296 bytes (4096 megabytes)
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burst_lengths_bitmask = 0C
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base_addresss = 0 (00000000 00000000)
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n_ranks = 2
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data_width = 64
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primary_sdram_width = 64
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ec_sdram_width = 0
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registered_dimm = 0
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n_row_addr = 15
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n_col_addr = 10
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edc_config = 0
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n_banks_per_sdram_device = 8
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tCKmin_X_ps = 1500
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tCKmin_X_minus_1_ps = 0
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tCKmin_X_minus_2_ps = 0
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tCKmax_ps = 0
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caslat_X = 960
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tAA_ps = 13125
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caslat_X_minus_1 = 0
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caslat_X_minus_2 = 0
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caslat_lowest_derated = 0
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tRCD_ps = 13125
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tRP_ps = 13125
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tRAS_ps = 36000
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tWR_ps = 15000
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tWTR_ps = 7500
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tRFC_ps = 160000
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tRRD_ps = 6000
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tRC_ps = 49125
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refresh_rate_ps = 7800000
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tIS_ps = 0
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tIH_ps = 0
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tDS_ps = 0
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tDH_ps = 0
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tRTP_ps = 7500
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tDQSQ_max_ps = 0
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tQHS_ps = 0
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FSL DDR>edit c0 opts ECC_mode 0
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FSL DDR>edit c0 regs cs0_bnds 0x000000FF
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FSL DDR>go
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2 GiB left unmapped
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4 GiB (DDR3, 64-bit, CL=9, ECC off)
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DDR Chip-Select Interleaving Mode: CS0+CS1
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Testing 0x00000000 - 0x7fffffff
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Testing 0x80000000 - 0xffffffff
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Remap DDR 2 GiB left unmapped
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POST memory PASSED
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Flash: 128 MiB
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L2: 128 KB enabled
|
|
Corenet Platform Cache: 1024 KB enabled
|
|
SERDES: timeout resetting bank 3
|
|
SRIO1: disabled
|
|
SRIO2: disabled
|
|
MMC: FSL_ESDHC: 0
|
|
EEPROM: Invalid ID (ff ff ff ff)
|
|
PCIe1: disabled
|
|
PCIe2: Root Complex, x1, regs @ 0xfe201000
|
|
01:00.0 - 8086:10d3 - Network controller
|
|
PCIe2: Bus 00 - 01
|
|
PCIe3: disabled
|
|
In: serial
|
|
Out: serial
|
|
Err: serial
|
|
Net: Initializing Fman
|
|
Fman1: Uploading microcode version 101.8.0
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|
e1000: 00:1b:21:81:d2:e0
|
|
FM1@DTSEC1, FM1@DTSEC2, FM1@DTSEC3, FM1@DTSEC4, FM1@DTSEC5, e1000#0 [PRIME]
|
|
Warning: e1000#0 MAC addresses don't match:
|
|
Address in SROM is 00:1b:21:81:d2:e0
|
|
Address in environment is 00:e0:0c:00:ea:05
|
|
|
|
Hit any key to stop autoboot: 0
|
|
=>
|