Commit graph

7 commits

Author SHA1 Message Date
Marek Vasut
65d372c44c arm: socfpga: Assure ISWGRP 0 and 1 are inited
This fix makes sure that the ISWGRP0 and ISWGRP1 registers are
correctly inited. In case those registers are not initialized,
it is not possible to access the registers synthesised in the
FPGA through the bridges. Any such access produces data abort.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-09-04 11:54:20 +02:00
Marek Vasut
3191611a05 arm: socfpga: reset: Add function to reset add peripherals
Add socfpga_per_reset_all() function to reset all peripherals
but the L4 watchdog. This is needed in the SPL.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:06 +02:00
Marek Vasut
292260ca21 arm: socfpga: reset: Repair bridge reset handling
The current bridge reset code, which de-asserted the bridge reset,
was activelly polling whether the FPGA is programmed and ready and
in case it was (!), the code called hang(). This makes no sense at
all. Repair it such that the code instead checks whether the FPGA
is programmed, but without any polling involved, and only if it is
programmed, it de-asserts the reset.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:06 +02:00
Marek Vasut
a71df7aa4f arm: socfpga: reset: Replace ad-hoc reset functions
Replace all those ad-hoc reset functions, which were all copies
of the same invocation of clrbits_le32() anyway, with one single
unified function, socfpga_per_reset(), with necessary parameters.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:06 +02:00
Marek Vasut
bdfc2ef64a arm: socfpga: reset: Implement unified function to toggle reset
Implement function socfpga_per_reset(), which allows asserting or
de-asserting reset of each reset manager peripheral in a unified
manner. Use this function throughout reset manager.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:06 +02:00
Marek Vasut
1115cd2de7 arm: socfpga: reset: Start reworking the SoCFPGA reset manager
Implement macro SOCFPGA_RESET(name), which produces an abstract
reset number. Implement macros which allow extracting the reset
offset in permodrstN register and which permodrstN register the
reset is located in from this abstract reset number. Use these
macros throughout the reset manager.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08 14:14:06 +02:00
Masahiro Yamada
05a217212b ARM: socfpga: move SoC sources to mach-socfpga
Our recent trend is to collect SoC files into arch/arm/mach-(SOC).

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-05-07 05:21:12 +02:00
Renamed from arch/arm/cpu/armv7/socfpga/reset_manager.c (Browse further)