mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-11 13:46:17 +09:00
bb3e5aa289
Add the MMC clock gates and reset bits for all the Allwinner SoCs. This allows them to be used by the MMC driver. We don't advertise the mod clock yet, as this is still handled by the MMC driver. Signed-off-by: Andre Przywara <andre.przywara@arm.com> [jagan: add V3S, A80 gates/resets] Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Jagan Teki <jagan@openedev.com>
62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2018 Amarula Solutions.
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* Author: Jagan Teki <jagan@amarulasolutions.com>
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*/
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#include <common.h>
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#include <clk-uclass.h>
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#include <dm.h>
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#include <errno.h>
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#include <asm/arch/ccu.h>
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#include <dt-bindings/clock/sun9i-a80-ccu.h>
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#include <dt-bindings/reset/sun9i-a80-ccu.h>
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static const struct ccu_clk_gate a80_gates[] = {
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[CLK_BUS_MMC] = GATE(0x580, BIT(8)),
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[CLK_BUS_UART0] = GATE(0x594, BIT(16)),
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[CLK_BUS_UART1] = GATE(0x594, BIT(17)),
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[CLK_BUS_UART2] = GATE(0x594, BIT(18)),
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[CLK_BUS_UART3] = GATE(0x594, BIT(19)),
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[CLK_BUS_UART4] = GATE(0x594, BIT(20)),
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[CLK_BUS_UART5] = GATE(0x594, BIT(21)),
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};
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static const struct ccu_reset a80_resets[] = {
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[RST_BUS_MMC] = RESET(0x5a0, BIT(8)),
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[RST_BUS_UART0] = RESET(0x5b4, BIT(16)),
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[RST_BUS_UART1] = RESET(0x5b4, BIT(17)),
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[RST_BUS_UART2] = RESET(0x5b4, BIT(18)),
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[RST_BUS_UART3] = RESET(0x5b4, BIT(19)),
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[RST_BUS_UART4] = RESET(0x5b4, BIT(20)),
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[RST_BUS_UART5] = RESET(0x5b4, BIT(21)),
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};
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static const struct ccu_desc a80_ccu_desc = {
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.gates = a80_gates,
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.resets = a80_resets,
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};
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static int a80_clk_bind(struct udevice *dev)
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{
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return sunxi_reset_bind(dev, ARRAY_SIZE(a80_resets));
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}
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static const struct udevice_id a80_ccu_ids[] = {
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{ .compatible = "allwinner,sun9i-a80-ccu",
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.data = (ulong)&a80_ccu_desc },
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{ }
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};
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U_BOOT_DRIVER(clk_sun9i_a80) = {
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.name = "sun9i_a80_ccu",
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.id = UCLASS_CLK,
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.of_match = a80_ccu_ids,
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.priv_auto_alloc_size = sizeof(struct ccu_priv),
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.ops = &sunxi_clk_ops,
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.probe = sunxi_clk_probe,
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.bind = a80_clk_bind,
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};
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