diff options
| 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 /arch | |
| parent | 55d53ab45e3be3442c7b8555ff059df1d28f2838 (diff) | |
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 'arch')
| -rw-r--r-- | arch/arm/cpu/armv7/ls102xa/fdt.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/ls102xa/fdt.c b/arch/arm/cpu/armv7/ls102xa/fdt.c index e0288b8c3f..71a175392f 100644 --- a/arch/arm/cpu/armv7/ls102xa/fdt.c +++ b/arch/arm/cpu/armv7/ls102xa/fdt.c @@ -124,6 +124,25 @@ void ft_cpu_setup(void *blob, bd_t *bd) do_fixup_by_compat_u32(blob, "fsl,qoriq-sysclk-2.0", "clock-frequency", CONFIG_SYS_CLK_FREQ, 1); +#if defined(CONFIG_DEEP_SLEEP) && defined(CONFIG_SD_BOOT) +#define UBOOT_HEAD_LEN 0x1000 + /* + * Reserved memory in SD boot deep sleep case. + * Second stage uboot binary and malloc space should be reserved. + * If the memory they occupied has not been reserved, then this + * space would be used by kernel and overwritten in uboot when + * deep sleep resume, which cause deep sleep failed. + * Since second uboot binary has a head, that space need to be + * reserved either(assuming its size is less than 0x1000). + */ + off = fdt_add_mem_rsv(blob, CONFIG_SYS_TEXT_BASE - UBOOT_HEAD_LEN, + CONFIG_SYS_MONITOR_LEN + CONFIG_SYS_SPL_MALLOC_SIZE + + UBOOT_HEAD_LEN); + if (off < 0) + printf("Failed to reserve memory for SD boot deep sleep: %s\n", + fdt_strerror(off)); +#endif + #if defined(CONFIG_FSL_ESDHC) fdt_fixup_esdhc(blob, bd); #endif |