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path: root/arch/arm/mach-keystone/ddr3_spd.c
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2016-03-14ARM: keystone2: use detected ddr3a sizeVitaly Andrianov
Because KS2 u-boot works in 32 bit address space the existing ram_size global data field cannot be used. The maximum, which the get_ram_size() can detect is 2GB only. The ft_board_setup() needs the actual ddr3 size to fix up dtb. This commit introduces the ddr3_get_size() which uses SPD data to calculate the ddr3 size. This function replaces the "ddr3_size" environment variable, which was used to get the SODIMM size. For platforms, which don't have SODIMM with SPD and ddr3 is populated to a board a simple ddr3_get_size function that returns ddr3 size has to be implemented. See hardware-k2l.h Signed-off-by: Vitaly Andrianov <vitalya@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-03-14ARM: keystone2: use SPD info to configure K2HK and K2E DDR3Vitaly Andrianov
This commit replaces hard-coded EMIF and PHY DDR3 configurations for predefined SODIMMs to a calculated configuration. The SODIMM parameters are read from SODIMM's SPD and used to calculated the configuration. The current commit supports calculation for DDR3 with 1600MHz and 1333MHz only. Signed-off-by: Vitaly Andrianov <vitalya@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>