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| author |   Dinh Nguyen <dinguyen@kernel.org> | 2018-11-13 12:50:48 -0600 |
|---|---|---|
| committer |   Philipp Zabel <p.zabel@pengutronix.de> | 2019-01-07 16:38:50 +0100 |
| commit | b3ca9888f35fa6919569cf27c929dc0ac49e9716 (patch) | |
| tree | 0372e63304427cde5620f8bfc726096a1cae4b89 /arch/arm/mach-socfpga | |
| parent | reset: fix null pointer dereference on dev by dev_name (diff) | |
| download | linux-dev-b3ca9888f35fa6919569cf27c929dc0ac49e9716.tar.xz linux-dev-b3ca9888f35fa6919569cf27c929dc0ac49e9716.zip | |
reset: socfpga: add an early reset driver for SoCFPGA
Create a separate reset driver that uses the reset operations in
reset-simple. The reset driver for the SoCFPGA platform needs to
register early in order to be able bring online timers that needed
early in the kernel bootup.
We do not need this early reset driver for Stratix10, because on
arm64, Linux does not need the timers are that in reset. Linux is
able to run just fine with the internal armv8 timer. Thus, we use
a new binding "altr,stratix10-rst-mgr" for the Stratix10 platform.
The Stratix10 platform will continue to use the reset-simple platform
driver, while the 32-bit platforms(Cyclone5/Arria5/Arria10) will use
the early reset driver.
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
[p.zabel@pengutronix.de: fixed socfpga of_device_id in reset-simple]
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-socfpga')
| -rw-r--r-- | arch/arm/mach-socfpga/socfpga.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-socfpga/socfpga.c b/arch/arm/mach-socfpga/socfpga.c index 5fb6f79059a8..afd98971d903 100644 --- a/arch/arm/mach-socfpga/socfpga.c +++ b/arch/arm/mach-socfpga/socfpga.c @@ -32,6 +32,8 @@ void __iomem *rst_manager_base_addr; void __iomem *sdr_ctl_base_addr; unsigned long socfpga_cpu1start_addr; +extern void __init socfpga_reset_init(void); + static void __init socfpga_sysmgr_init(void) { struct device_node *np; @@ -64,6 +66,7 @@ static void __init socfpga_init_irq(void) if (IS_ENABLED(CONFIG_EDAC_ALTERA_OCRAM)) socfpga_init_ocram_ecc(); + socfpga_reset_init(); } static void __init socfpga_arria10_init_irq(void) @@ -74,6 +77,7 @@ static void __init socfpga_arria10_init_irq(void) socfpga_init_arria10_l2_ecc(); if (IS_ENABLED(CONFIG_EDAC_ALTERA_OCRAM)) socfpga_init_arria10_ocram_ecc(); + socfpga_reset_init(); } static void socfpga_cyclone5_restart(enum reboot_mode mode, const char *cmd) |