diff options
author | Jacky Bai <ping.bai@nxp.com> | 2020-01-14 14:19:05 +0800 |
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committer | Jacky Bai <ping.bai@nxp.com> | 2020-02-09 20:58:49 +0800 |
commit | 085ba00ae5f1e302fc76a1d146bcbe7d743384bb (patch) | |
tree | 55d87c1d225fde4487acce814aeaf09fec5feca7 /plat/imx/imx8m/ddr/dram.c | |
parent | 1440ea94c250893829b16ccc30a19cdde5dc5636 (diff) |
plat: imx8mq: Enable dram dvfs support on imx8mq
Enable DRAM DVFS support on i.MX8MQ.
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Diffstat (limited to 'plat/imx/imx8m/ddr/dram.c')
-rw-r--r-- | plat/imx/imx8m/ddr/dram.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/plat/imx/imx8m/ddr/dram.c b/plat/imx/imx8m/ddr/dram.c index d3ecf769..7dbaabfe 100644 --- a/plat/imx/imx8m/ddr/dram.c +++ b/plat/imx/imx8m/ddr/dram.c @@ -11,6 +11,7 @@ #include <plat/common/platform.h> #include <dram.h> +#include <gpc.h> #define IMX_SIP_DDR_DVFS_GET_FREQ_COUNT 0x10 #define IMX_SIP_DDR_DVFS_GET_FREQ_INFO 0x11 @@ -251,6 +252,12 @@ int dram_dvfs_handler(uint32_t smc_fid, void *handle, for (int i = 0; i < PLATFORM_CORE_COUNT; i++) if (cpu_id != i && (online_cores & (0x1 << (i * 8)))) plat_ic_raise_el3_sgi(0x8, i); +#if defined(PLAT_imx8mq) + for (int i = 0; i < 4; i++) { + if (i != cpu_id && online_cores & (1 << (i * 8))) + imx_gpc_core_wake(1 << i); + } +#endif /* make sure all the core in WFE */ online_cores &= ~(0x1 << (cpu_id * 8)); |