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| author | tang yuantian <Yuantian.Tang@freescale.com> | 2014-12-17 12:58:05 +0800 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2015-01-24 09:12:32 -0600 |
| commit | 41ba57d0c7968506ddcc71604bd39131acf6ee23 (patch) | |
| tree | bf26f87db9187364bb16418ce264c5d13fb03f84 /board/freescale/ls1021aqds/ddr.c | |
| parent | 55d53ab45e3be3442c7b8555ff059df1d28f2838 (diff) | |
| download | u-boot-imx-41ba57d0c7968506ddcc71604bd39131acf6ee23.zip u-boot-imx-41ba57d0c7968506ddcc71604bd39131acf6ee23.tar.gz u-boot-imx-41ba57d0c7968506ddcc71604bd39131acf6ee23.tar.bz2 | |
fsl/ls1021qds: Add deep sleep support
Add deep sleep support on Freescale LS1021QDS platform.
Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
[York Sun: Fix conflict in fdt.c]
Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'board/freescale/ls1021aqds/ddr.c')
| -rw-r--r-- | board/freescale/ls1021aqds/ddr.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/board/freescale/ls1021aqds/ddr.c b/board/freescale/ls1021aqds/ddr.c index a539ff9..6435bf9 100644 --- a/board/freescale/ls1021aqds/ddr.c +++ b/board/freescale/ls1021aqds/ddr.c @@ -7,6 +7,7 @@ #include <common.h> #include <fsl_ddr_sdram.h> #include <fsl_ddr_dimm_params.h> +#include <asm/io.h> #include "ddr.h" DECLARE_GLOBAL_DATA_PTR; @@ -149,6 +150,17 @@ int fsl_ddr_get_dimm_params(dimm_params_t *pdimm, } #endif +#if defined(CONFIG_DEEP_SLEEP) +void board_mem_sleep_setup(void) +{ + void __iomem *qixis_base = (void *)QIXIS_BASE; + + /* does not provide HW signals for power management */ + clrbits_8(qixis_base + 0x21, 0x2); + udelay(1); +} +#endif + phys_size_t initdram(int board_type) { phys_size_t dram_size; @@ -159,6 +171,11 @@ phys_size_t initdram(int board_type) #else dram_size = fsl_ddr_sdram_size(); #endif + +#if defined(CONFIG_DEEP_SLEEP) && !defined(CONFIG_SPL_BUILD) + fsl_dp_resume(); +#endif + return dram_size; } |