diff options
Diffstat (limited to 'arch/arm/cpu/armv7')
| -rw-r--r-- | arch/arm/cpu/armv7/socfpga/misc.c | 6 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/socfpga/reset_manager.c | 9 |
2 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/socfpga/misc.c b/arch/arm/cpu/armv7/socfpga/misc.c index 8c3e5f7..73cffd3 100644 --- a/arch/arm/cpu/armv7/socfpga/misc.c +++ b/arch/arm/cpu/armv7/socfpga/misc.c @@ -202,6 +202,12 @@ int arch_early_init_r(void) /* Add device descriptor to FPGA device table */ socfpga_fpga_add(); + +#ifdef CONFIG_DESIGNWARE_SPI + /* Get Designware SPI controller out of reset */ + socfpga_spim_enable(); +#endif + return 0; } diff --git a/arch/arm/cpu/armv7/socfpga/reset_manager.c b/arch/arm/cpu/armv7/socfpga/reset_manager.c index 1d3a95d..af9db85 100644 --- a/arch/arm/cpu/armv7/socfpga/reset_manager.c +++ b/arch/arm/cpu/armv7/socfpga/reset_manager.c @@ -104,3 +104,12 @@ void socfpga_emac_reset(int enable) #endif } } + +/* SPI Master enable (its held in reset by the preloader) */ +void socfpga_spim_enable(void) +{ + const void *reset = &reset_manager_base->per_mod_reset; + + clrbits_le32(reset, 1 << RSTMGR_PERMODRST_SPIM0_LSB); + clrbits_le32(reset, 1 << RSTMGR_PERMODRST_SPIM1_LSB); +} |