mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
82a248df9a
The drivers are based on Linux driver by Gregory Clement.
The TBG clocks support only the .get_rate method.
- since setting rate is not supported, the driver computes the rates
when probing and so subsequent calls to the .get_rate method do not
read the corresponding registers again
The peripheral clocks support methods .get_rate, .enable and .disable.
- the .set_parent method theoretically could be supported on some clocks
(the parent would have to be one of the TBG clocks)
- the .set_rate method would have to try all the divider values to find
the best approximation of a given rate, and it doesn't seem like
this should be needed in U-Boot, therefore not implemented
Signed-off-by: Marek Behun <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
30 lines
966 B
Makefile
30 lines
966 B
Makefile
#
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# Copyright (c) 2015 Google, Inc
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# SPDX-License-Identifier: GPL-2.0+
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#
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obj-$(CONFIG_$(SPL_TPL_)CLK) += clk-uclass.o clk_fixed_rate.o
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obj-y += tegra/
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obj-$(CONFIG_ARCH_ASPEED) += aspeed/
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obj-$(CONFIG_ARCH_ROCKCHIP) += rockchip/
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obj-$(CONFIG_CLK_AT91) += at91/
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obj-$(CONFIG_CLK_MVEBU) += mvebu/
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obj-$(CONFIG_CLK_BCM6345) += clk_bcm6345.o
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obj-$(CONFIG_CLK_BOSTON) += clk_boston.o
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obj-$(CONFIG_CLK_EXYNOS) += exynos/
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obj-$(CONFIG_CLK_HSDK) += clk-hsdk-cgu.o
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obj-$(CONFIG_CLK_RENESAS) += renesas/
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obj-$(CONFIG_CLK_STM32F) += clk_stm32f.o
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obj-$(CONFIG_CLK_STM32MP1) += clk_stm32mp1.o
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obj-$(CONFIG_CLK_UNIPHIER) += uniphier/
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obj-$(CONFIG_CLK_ZYNQ) += clk_zynq.o
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obj-$(CONFIG_CLK_ZYNQMP) += clk_zynqmp.o
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obj-$(CONFIG_ICS8N3QV01) += ics8n3qv01.o
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obj-$(CONFIG_MACH_PIC32) += clk_pic32.o
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obj-$(CONFIG_SANDBOX) += clk_sandbox.o
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obj-$(CONFIG_SANDBOX) += clk_sandbox_test.o
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obj-$(CONFIG_STM32H7) += clk_stm32h7.o
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