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| author | Dinh Nguyen <dinguyen@opensource.altera.com> | 2015-03-30 17:01:07 -0500 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2015-04-21 12:23:16 +0200 |
| commit | 08e463ee8a7a5641e191be2a8e934d8284d1ca55 (patch) | |
| tree | c1f2e0e180d637864b6065bcdc0d1b9698b42c52 /arch/arm/cpu | |
| parent | 9fd565dbe7eadc9736c496bc67f2a0414b50069f (diff) | |
| download | u-boot-imx-08e463ee8a7a5641e191be2a8e934d8284d1ca55.zip u-boot-imx-08e463ee8a7a5641e191be2a8e934d8284d1ca55.tar.gz u-boot-imx-08e463ee8a7a5641e191be2a8e934d8284d1ca55.tar.bz2 | |
arm: socfpga: spl: allow bootrom to enable IOs after warm reset
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Acked-by: Marek Vasut <marex@denx.de>
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/armv7/socfpga/spl.c | 3 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/socfpga/system_manager.c | 9 |
2 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/socfpga/spl.c b/arch/arm/cpu/armv7/socfpga/spl.c index 95992f0..787ad7f 100644 --- a/arch/arm/cpu/armv7/socfpga/spl.c +++ b/arch/arm/cpu/armv7/socfpga/spl.c @@ -154,6 +154,9 @@ void spl_board_init(void) /* reconfigure the PLLs */ cm_basic_init(&cm_default_cfg); + /* Enable bootrom to configure IOs. */ + sysmgr_enable_warmrstcfgio(); + /* configure the IOCSR / IO buffer settings */ if (scan_mgr_configure_iocsr()) hang(); diff --git a/arch/arm/cpu/armv7/socfpga/system_manager.c b/arch/arm/cpu/armv7/socfpga/system_manager.c index 11f7bad..8126e0d 100644 --- a/arch/arm/cpu/armv7/socfpga/system_manager.c +++ b/arch/arm/cpu/armv7/socfpga/system_manager.c @@ -66,3 +66,12 @@ void sysmgr_pinmux_init(void) populate_sysmgr_fpgaintf_module(); } + +/* + * This bit allows the bootrom to configure the IOs after a warm reset. + */ +void sysmgr_enable_warmrstcfgio(void) +{ + setbits_le32(&sysmgr_regs->romcodegrp_ctrl, + SYSMGR_ROMCODEGRP_CTRL_WARMRSTCFGIO); +} |