From: Tien Fong Chee tien.fong.chee@intel.com

Restructure DDR driver so that driver has the ability to recognize the DDR type by populating DDR handoff from bitstream. This is also in preparation to improve driver for supporting additional LPDDR4.

Signed-off-by: Tien Fong Chee tien.fong.chee@intel.com Signed-off-by: Jit Loon Lim jit.loon.lim@intel.com --- drivers/ddr/altera/sdram_n5x.c | 7 +++++++ 1 file changed, 7 insertions(+)

diff --git a/drivers/ddr/altera/sdram_n5x.c b/drivers/ddr/altera/sdram_n5x.c index 737a4e2ff1..8dba6bb035 100644 --- a/drivers/ddr/altera/sdram_n5x.c +++ b/drivers/ddr/altera/sdram_n5x.c @@ -336,6 +336,13 @@ enum reset_type { COLD_RESET };

+enum ddr_type { + DDRTYPE_LPDDR4_0, + DDRTYPE_LPDDR4_1, + DDRTYPE_DDR4, + DDRTYPE_UNKNOWN +}; + /* DDR handoff structure */ struct ddr_handoff { /* Memory reset manager base */