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| author | Serge Semin <Sergey.Semin@baikalelectronics.ru> | 2020-05-27 01:20:54 +0300 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2020-05-30 11:04:35 -0700 |
| commit | 11ea09b9e2ed0d9680a890f8fffa204dcb1a2654 (patch) | |
| tree | 1179b0af782b99a15fad5dd258e5c76f74e06f03 /include/dt-bindings/reset | |
| parent | aec6adc560a0fa090659f23f7501e77d18306b84 (diff) | |
| download | linux-riscv-11ea09b9e2ed0d9680a890f8fffa204dcb1a2654.tar.gz linux-riscv-11ea09b9e2ed0d9680a890f8fffa204dcb1a2654.tar.bz2 linux-riscv-11ea09b9e2ed0d9680a890f8fffa204dcb1a2654.zip | |
dt-bindings: clk: Add Baikal-T1 CCU Dividers binding
After being gained by the CCU PLLs the signals must be transformed to
be suitable for the clock-consumers. This is done by a set of dividers
embedded into the CCU. A first block of dividers is used to create
reference clocks for AXI-bus of high-speed peripheral IP-cores of the
chip. The second block dividers alter the PLLs output signals to be then
consumed by SoC peripheral devices. Both block DT nodes are ordinary
clock-providers with standard set of properties supported. But in addition
to that each clock provider can be used to reset the corresponding clock
domain. This makes the AXI-bus and System Devices CCU DT nodes to be also
reset-providers.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-mips@vger.kernel.org
Link: https://lore.kernel.org/r/20200526222056.18072-3-Sergey.Semin@baikalelectronics.ru
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'include/dt-bindings/reset')
| -rw-r--r-- | include/dt-bindings/reset/bt1-ccu.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/dt-bindings/reset/bt1-ccu.h b/include/dt-bindings/reset/bt1-ccu.h new file mode 100644 index 000000000000..3578e83026bc --- /dev/null +++ b/include/dt-bindings/reset/bt1-ccu.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2020 BAIKAL ELECTRONICS, JSC + * + * Baikal-T1 CCU reset indices + */ +#ifndef __DT_BINDINGS_RESET_BT1_CCU_H +#define __DT_BINDINGS_RESET_BT1_CCU_H + +#define CCU_AXI_MAIN_RST 0 +#define CCU_AXI_DDR_RST 1 +#define CCU_AXI_SATA_RST 2 +#define CCU_AXI_GMAC0_RST 3 +#define CCU_AXI_GMAC1_RST 4 +#define CCU_AXI_XGMAC_RST 5 +#define CCU_AXI_PCIE_M_RST 6 +#define CCU_AXI_PCIE_S_RST 7 +#define CCU_AXI_USB_RST 8 +#define CCU_AXI_HWA_RST 9 +#define CCU_AXI_SRAM_RST 10 + +#define CCU_SYS_SATA_REF_RST 0 +#define CCU_SYS_APB_RST 1 + +#endif /* __DT_BINDINGS_RESET_BT1_CCU_H */ |