diff options
| author | Jacky Bai <ping.bai@nxp.com> | 2019-11-25 13:19:37 +0800 |
|---|---|---|
| committer | Anson Huang <Anson.Huang@nxp.com> | 2019-12-13 10:45:50 +0800 |
| commit | 80ca14d68b42b4383ccd23364313feffa682d9c7 (patch) | |
| tree | 6134c7072020f0e9f23914ff069bd7fdb990e854 /plat/imx/imx8m/include | |
| parent | 837f1ff8c210d7518d7264177b1675694f57012b (diff) | |
plat: imx8m: Add the ddr frequency change support for imx8m family
Add the DDR frequency change support.
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Change-Id: I84f0ef51b04b84da8ba2cbeca86a07338a4903de
Diffstat (limited to 'plat/imx/imx8m/include')
| -rw-r--r-- | plat/imx/imx8m/include/dram.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/plat/imx/imx8m/include/dram.h b/plat/imx/imx8m/include/dram.h index 16182054..c384cb1d 100644 --- a/plat/imx/imx8m/include/dram.h +++ b/plat/imx/imx8m/include/dram.h @@ -49,9 +49,13 @@ struct dram_timing_info { struct dram_info { int dram_type; unsigned int num_rank; + uint32_t num_fsp; int current_fsp; int boot_fsp; + bool bypass_mode; struct dram_timing_info *timing_info; + /* mr, emr, emr2, emr3, mr11, mr12, mr22, mr14 */ + uint32_t mr_table[3][8]; }; extern struct dram_info dram_info; @@ -64,4 +68,10 @@ void dram_phy_init(struct dram_timing_info *timing); void dram_enter_retention(void); void dram_exit_retention(void); +void dram_clock_switch(unsigned int target_drate, bool bypass_mode); + +/* dram frequency change */ +void lpddr4_swffc(struct dram_info *info, unsigned int init_fsp, unsigned int fsp_index); +void ddr4_swffc(struct dram_info *dram_info, unsigned int pstate); + #endif /* DRAM_H */ |