diff options
Diffstat (limited to 'roms/u-boot/board/freescale/ls2080ardb/ddr.h')
-rw-r--r-- | roms/u-boot/board/freescale/ls2080ardb/ddr.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/roms/u-boot/board/freescale/ls2080ardb/ddr.h b/roms/u-boot/board/freescale/ls2080ardb/ddr.h new file mode 100644 index 000000000..c5f2a9521 --- /dev/null +++ b/roms/u-boot/board/freescale/ls2080ardb/ddr.h @@ -0,0 +1,76 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright 2015 Freescale Semiconductor, Inc. + */ + +#ifndef __DDR_H__ +#define __DDR_H__ +struct board_specific_parameters { + u32 n_ranks; + u32 datarate_mhz_high; + u32 rank_gb; + u32 clk_adjust; + u32 wrlvl_start; + u32 wrlvl_ctl_2; + u32 wrlvl_ctl_3; +}; + +/* + * These tables contain all valid speeds we want to override with board + * specific parameters. datarate_mhz_high values need to be in ascending order + * for each n_ranks group. + */ + +static const struct board_specific_parameters udimm0[] = { + /* + * memory controller 0 + * num| hi| rank| clk| wrlvl | wrlvl | wrlvl + * ranks| mhz| GB |adjst| start | ctl2 | ctl3 + */ + {2, 1350, 0, 8, 6, 0x0708090B, 0x0C0D0E09,}, + {2, 1666, 0, 10, 9, 0x090A0B0E, 0x0F11110C,}, + {2, 1900, 0, 12, 0xA, 0x0B0C0E11, 0x1214140F,}, + {2, 2300, 0, 12, 0xB, 0x0C0D0F12, 0x14161610,}, + {} +}; + +/* DP-DDR DIMM */ +static const struct board_specific_parameters udimm2[] = { + /* + * memory controller 2 + * num| hi| rank| clk| wrlvl | wrlvl | wrlvl + * ranks| mhz| GB |adjst| start | ctl2 | ctl3 + */ + {2, 1350, 0, 8, 0xd, 0x0C0A0A00, 0x00000009,}, + {2, 1666, 0, 8, 0xd, 0x0C0A0A00, 0x00000009,}, + {2, 1900, 0, 8, 0xe, 0x0D0C0B00, 0x0000000A,}, + {2, 2200, 0, 8, 0xe, 0x0D0C0B00, 0x0000000A,}, + {} +}; + +static const struct board_specific_parameters rdimm0[] = { + /* + * memory controller 0 + * num| hi| rank| clk| wrlvl | wrlvl | wrlvl + * ranks| mhz| GB |adjst| start | ctl2 | ctl3 + */ + {2, 1666, 0, 8, 0x0F, 0x0D0C0A09, 0x0B0C0E08,}, + {2, 1900, 0, 8, 0x10, 0x0F0D0B0A, 0x0B0E0F09,}, + {2, 2200, 0, 8, 0x13, 0x120F0E0B, 0x0D10110B,}, + {} +}; + +static const struct board_specific_parameters *udimms[] = { + udimm0, + udimm0, + udimm2, +}; + +static const struct board_specific_parameters *rdimms[] = { + rdimm0, + rdimm0, + udimm2, /* DP-DDR doesn't support RDIMM */ +}; + + +#endif |