diff options
| author | Rob Barnes <robbarnes@google.com> | 2021-06-07 08:55:14 -0600 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2021-06-09 15:10:34 +0000 |
| commit | f892b85e18bfead6ed1f135e50ed4e9544553278 (patch) | |
| tree | 4da60b66b8b32b2f226744ba675cedb0e816b742 /src/include/device | |
| parent | eca3e6278abd37da60cd68bb3705ce1cc01d4f47 (diff) | |
device/dram: Add LPDDR4 utilities
Add lpddr4.c utility file with lpddr4_speed_mhz_to_reported_mts.
Fill in lpddr4_speeds using JDEC 209-4C table 210.
LPDDR4 SPD decoding utilities are not included since there isn't
a present need.
BUG=b:184124605
TEST=Build and run on guybrush
Change-Id: Id8ddfc98fff4255670c50e1ddd4d0a1326265772
Signed-off-by: Rob Barnes <robbarnes@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52745
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/include/device')
| -rw-r--r-- | src/include/device/dram/lpddr4.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/include/device/dram/lpddr4.h b/src/include/device/dram/lpddr4.h new file mode 100644 index 0000000000..59ddc337e4 --- /dev/null +++ b/src/include/device/dram/lpddr4.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef DEVICE_DRAM_LPDDR4_H +#define DEVICE_DRAM_LPDDR4_H + +/** + * @file lpddr4.h + * + * \brief Utilities for decoding LPDDR4 info + */ + +#include <device/dram/common.h> +#include <types.h> + +/** + * Converts LPDDR4 clock speed in MHz to the standard reported speed in MT/s + */ +uint16_t lpddr4_speed_mhz_to_reported_mts(uint16_t speed_mhz); + +#endif /* DEVICE_DRAM_LPDDR4_H */ |