u-boot/drivers/clk/sunxi/clk_a10s.c
Jagan Teki 4acc711930 clk: sunxi: Implement UART clocks
Implement UART clocks for all Allwinner SoC
clock drivers via ccu clock gate table.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
2019-01-18 22:19:09 +05:30

61 lines
1.5 KiB
C

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Copyright (C) 2018 Amarula Solutions.
* Author: Jagan Teki <jagan@amarulasolutions.com>
*/
#include <common.h>
#include <clk-uclass.h>
#include <dm.h>
#include <errno.h>
#include <asm/arch/ccu.h>
#include <dt-bindings/clock/sun5i-ccu.h>
#include <dt-bindings/reset/sun5i-ccu.h>
static struct ccu_clk_gate a10s_gates[] = {
[CLK_AHB_OTG] = GATE(0x060, BIT(0)),
[CLK_AHB_EHCI] = GATE(0x060, BIT(1)),
[CLK_AHB_OHCI] = GATE(0x060, BIT(2)),
[CLK_APB1_UART0] = GATE(0x06c, BIT(16)),
[CLK_APB1_UART1] = GATE(0x06c, BIT(17)),
[CLK_APB1_UART2] = GATE(0x06c, BIT(18)),
[CLK_APB1_UART3] = GATE(0x06c, BIT(19)),
[CLK_USB_OHCI] = GATE(0x0cc, BIT(6)),
[CLK_USB_PHY0] = GATE(0x0cc, BIT(8)),
[CLK_USB_PHY1] = GATE(0x0cc, BIT(9)),
};
static struct ccu_reset a10s_resets[] = {
[RST_USB_PHY0] = RESET(0x0cc, BIT(0)),
[RST_USB_PHY1] = RESET(0x0cc, BIT(1)),
};
static const struct ccu_desc a10s_ccu_desc = {
.gates = a10s_gates,
.resets = a10s_resets,
};
static int a10s_clk_bind(struct udevice *dev)
{
return sunxi_reset_bind(dev, ARRAY_SIZE(a10s_resets));
}
static const struct udevice_id a10s_ccu_ids[] = {
{ .compatible = "allwinner,sun5i-a10s-ccu",
.data = (ulong)&a10s_ccu_desc },
{ .compatible = "allwinner,sun5i-a13-ccu",
.data = (ulong)&a10s_ccu_desc },
{ }
};
U_BOOT_DRIVER(clk_sun5i_a10s) = {
.name = "sun5i_a10s_ccu",
.id = UCLASS_CLK,
.of_match = a10s_ccu_ids,
.priv_auto_alloc_size = sizeof(struct ccu_priv),
.ops = &sunxi_clk_ops,
.probe = sunxi_clk_probe,
.bind = a10s_clk_bind,
};