This moves disabling all peripherals from ad-hoc code in arch/arm to the socfpga reset driver.
To do this, DM initialization and UCLASS_RESET probing has to be done earlier in the SPL.
Signed-off-by: Simon Goldschmidt simon.k.r.goldschmidt@gmail.com ---
arch/arm/mach-socfpga/reset_manager_gen5.c | 13 ------------- arch/arm/mach-socfpga/spl_gen5.c | 21 +++++++++------------ 2 files changed, 9 insertions(+), 25 deletions(-)
diff --git a/arch/arm/mach-socfpga/reset_manager_gen5.c b/arch/arm/mach-socfpga/reset_manager_gen5.c index 9a32f5abfe..34e59b852b 100644 --- a/arch/arm/mach-socfpga/reset_manager_gen5.c +++ b/arch/arm/mach-socfpga/reset_manager_gen5.c @@ -48,19 +48,6 @@ void socfpga_per_reset(u32 reset, int set) clrbits_le32(reg, 1 << RSTMGR_RESET(reset)); }
-/* - * Assert reset on every peripheral but L4WD0. - * Watchdog must be kept intact to prevent glitches - * and/or hangs. - */ -void socfpga_per_reset_all(void) -{ - const u32 l4wd0 = 1 << RSTMGR_RESET(SOCFPGA_RESET(L4WD0)); - - writel(~l4wd0, &reset_manager_base->per_mod_reset); - writel(0xffffffff, &reset_manager_base->per2_mod_reset); -} - #define L3REGS_REMAP_LWHPS2FPGA_MASK 0x10 #define L3REGS_REMAP_HPS2FPGA_MASK 0x08 #define L3REGS_REMAP_OCRAM_MASK 0x01 diff --git a/arch/arm/mach-socfpga/spl_gen5.c b/arch/arm/mach-socfpga/spl_gen5.c index 87b76b47de..1ae8025746 100644 --- a/arch/arm/mach-socfpga/spl_gen5.c +++ b/arch/arm/mach-socfpga/spl_gen5.c @@ -84,12 +84,19 @@ void board_init_f(ulong dummy) socfpga_sdram_remap_zero(); socfpga_pl310_clear();
+ ret = spl_early_init(); + if (ret) { + debug("spl_early_init() failed: %d\n", ret); + hang(); + } + debug("Freezing all I/O banks\n"); /* freeze all IO banks */ sys_mgr_frzctrl_freeze_req();
- /* Put everything into reset but L4WD0. */ - socfpga_per_reset_all(); + ret = uclass_get_device(UCLASS_RESET, 0, &dev); + if (ret) + debug("Reset init failed: %d\n", ret);
if (!socfpga_is_booting_from_fpga()) { /* Put FPGA bridges into reset too. */ @@ -130,16 +137,6 @@ void board_init_f(ulong dummy) debug_uart_init(); #endif
- ret = spl_early_init(); - if (ret) { - debug("spl_early_init() failed: %d\n", ret); - hang(); - } - - ret = uclass_get_device(UCLASS_RESET, 0, &dev); - if (ret) - debug("Reset init failed: %d\n", ret); - /* enable console uart printing */ preloader_console_init();