u-boot.git/drivers/ddr, branch v2015.10-rc2

arm: mvebu: Add complete SDRAM ECC scrubbing

2015-08-17T16:49:33Z

This patch introduces the SDRAM scrubbing for ECC enabled board to fill/initialize the ECC bytes. This is done via the XOR engine to speed up the process. The scrubbing is a 2-stage process: 1) SPL scrubs the area 0 - 0x100.0000 (16MiB) for the main U-Boot 2) U-Boot scrubs the remaining SDRAM area(s) Signed-off-by: Stefan Roese Cc: Luka Perkov

arm: mvebu: sdram: Enable ECC support on Armada XP

2015-08-17T16:41:33Z

This is tested on the DB-MV784MP-GP eval board. To really enable ECC support on this board the I2C EEPROM needs to get changed. As it saves the enabling of ECC support internally. For this the following commands can be used to enable ECC support on this board: Its recommended for first save (print) the value(s) in this EEPROM address: => i2c md 4e 0.1 2 0000: 05 00 .. To enable ECC support you need to set bit 1 in the 2nd byte: Marvell>> i2c mw 4e 1.1 02 Marvell>> i2c md 4e 0.1 2 0000: 05 02 .. To disable ECC support again, please use this command: Marvell>> i2c mw 4e 1.1 00 Marvell>> i2c md 4e 0.1 2 0000: 05 00 .. On other AXP boards, simply plugging an ECC DIMM should be enough to enable ECC support. Signed-off-by: Stefan Roese Cc: Luka Perkov

ddr: altera: sequencer: Clean checkpatch issues

2015-08-08T12:14:30Z

Fix most of the dangling checkpatch issues, no functional change. There are still 7 warnings, 1 checks , but those are left in place for the sake of readability of the code. Signed-off-by: Marek Vasut Acked-by: Dinh Nguyen

ddr: altera: sequencer: Clean data types

2015-08-08T12:14:29Z

Replace uintNN_t with uNN. No functional change. Signed-off-by: Marek Vasut Acked-by: Dinh Nguyen

ddr: altera: sequencer: Pluck out misc macros from code

2015-08-08T12:14:29Z

Actually convert the sequencer code to use socfpga_sdram_misc_config instead of the various macros. This is just an sed exercise here, no manual coding needed. This patch actually removes the need to include any board-specific files in sequencer.c , so sequencer.c namespace is now no longer poluted by QTS-generated macros. Signed-off-by: Marek Vasut Acked-by: Dinh Nguyen

ddr: altera: sequencer: Zap SEQ_T(INIT|RESET)_CNTR._VAL

2015-08-08T12:14:29Z

This is another macro used to obfuscate the real code. The T(INIT|RESET)_CNTR._VAL is always defined, so this indirection is unnecessary. Get rid of this. Signed-off-by: Marek Vasut Acked-by: Dinh Nguyen

ddr: altera: sequencer: Zap VFIFO_SIZE

2015-08-08T12:14:29Z

Just use READ_VALID_FIFO_SIZE directly, no need for this macro obfuscation. Signed-off-by: Marek Vasut Acked-by: Dinh Nguyen

ddr: altera: sequencer: Wrap misc remaining macros

2015-08-08T12:14:29Z

Introduce structure socfpga_sdram_misc_config to wrap the remaining misc configuration values in board file. Again, introduce a function, socfpga_get_sdram_misc_config(), which returns this the structure. This is almost the final step toward wrapping the nasty QTS generated macros in board files and reducing the pollution of the namespace. Signed-off-by: Marek Vasut Acked-by: Dinh Nguyen

ddr: altera: sequencer: Pluck out IO_* macros from code

2015-08-08T12:14:29Z

Actually convert the sequencer code to use socfpga_sdram_io_config instead of the IO_* macros. This is just an sed excercise here, no manual coding needed. Signed-off-by: Marek Vasut Acked-by: Dinh Nguyen

ddr: altera: sequencer: Wrap IO_* macros

2015-08-08T12:14:29Z

Introduce structure socfpga_sdram_io_config to wrap the IO configuration values in board file. Introduce socfpga_get_sdram_io_config() function, which returns this the structure. This is another step toward wrapping the nasty QTS generated macros in board files and reducing the pollution of the namespace. Signed-off-by: Marek Vasut Acked-by: Dinh Nguyen