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| author | Chun-Jie Chen <chun-jie.chen@mediatek.com> | 2021-09-14 10:16:17 +0800 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2021-09-14 15:05:37 -0700 |
| commit | a2a2c5fc5ce4369f4d9588bf1298e424dff003b4 (patch) | |
| tree | 2c321527d67932474f1e6342ea3c6288c89514e9 /drivers/clk/mediatek/clk-mt8195-peri_ao.c | |
| parent | 0360be014c3bae70543da99eb875fda57427c9fb (diff) | |
| download | lwn-a2a2c5fc5ce4369f4d9588bf1298e424dff003b4.tar.gz lwn-a2a2c5fc5ce4369f4d9588bf1298e424dff003b4.zip | |
clk: mediatek: Add MT8195 peripheral clock support
Add MT8195 peripheral clock controller which provides clock
gate control for ethernet/flashif/pcie/ssusb.
Signed-off-by: Chun-Jie Chen <chun-jie.chen@mediatek.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20210914021633.26377-9-chun-jie.chen@mediatek.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/mediatek/clk-mt8195-peri_ao.c')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt8195-peri_ao.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt8195-peri_ao.c b/drivers/clk/mediatek/clk-mt8195-peri_ao.c new file mode 100644 index 000000000000..907a92b22de8 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt8195-peri_ao.c @@ -0,0 +1,62 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// Copyright (c) 2021 MediaTek Inc. +// Author: Chun-Jie Chen <chun-jie.chen@mediatek.com> + +#include "clk-gate.h" +#include "clk-mtk.h" + +#include <dt-bindings/clock/mt8195-clk.h> +#include <linux/clk-provider.h> +#include <linux/platform_device.h> + +static const struct mtk_gate_regs peri_ao_cg_regs = { + .set_ofs = 0x10, + .clr_ofs = 0x14, + .sta_ofs = 0x18, +}; + +#define GATE_PERI_AO(_id, _name, _parent, _shift) \ + GATE_MTK(_id, _name, _parent, &peri_ao_cg_regs, _shift, &mtk_clk_gate_ops_setclr) + +static const struct mtk_gate peri_ao_clks[] = { + GATE_PERI_AO(CLK_PERI_AO_ETHERNET, "peri_ao_ethernet", "top_axi", 0), + GATE_PERI_AO(CLK_PERI_AO_ETHERNET_BUS, "peri_ao_ethernet_bus", "top_axi", 1), + GATE_PERI_AO(CLK_PERI_AO_FLASHIF_BUS, "peri_ao_flashif_bus", "top_axi", 3), + GATE_PERI_AO(CLK_PERI_AO_FLASHIF_FLASH, "peri_ao_flashif_flash", "top_spinor", 5), + GATE_PERI_AO(CLK_PERI_AO_SSUSB_1P_BUS, "peri_ao_ssusb_1p_bus", "top_usb_top_1p", 7), + GATE_PERI_AO(CLK_PERI_AO_SSUSB_1P_XHCI, "peri_ao_ssusb_1p_xhci", "top_ssusb_xhci_1p", 8), + GATE_PERI_AO(CLK_PERI_AO_SSUSB_2P_BUS, "peri_ao_ssusb_2p_bus", "top_usb_top_2p", 9), + GATE_PERI_AO(CLK_PERI_AO_SSUSB_2P_XHCI, "peri_ao_ssusb_2p_xhci", "top_ssusb_xhci_2p", 10), + GATE_PERI_AO(CLK_PERI_AO_SSUSB_3P_BUS, "peri_ao_ssusb_3p_bus", "top_usb_top_3p", 11), + GATE_PERI_AO(CLK_PERI_AO_SSUSB_3P_XHCI, "peri_ao_ssusb_3p_xhci", "top_ssusb_xhci_3p", 12), + GATE_PERI_AO(CLK_PERI_AO_SPINFI, "peri_ao_spinfi", "top_spinfi_bclk", 15), + GATE_PERI_AO(CLK_PERI_AO_ETHERNET_MAC, "peri_ao_ethernet_mac", "top_snps_eth_250m", 16), + GATE_PERI_AO(CLK_PERI_AO_NFI_H, "peri_ao_nfi_h", "top_axi", 19), + GATE_PERI_AO(CLK_PERI_AO_FNFI1X, "peri_ao_fnfi1x", "top_nfi1x", 20), + GATE_PERI_AO(CLK_PERI_AO_PCIE_P0_MEM, "peri_ao_pcie_p0_mem", "mem_466m", 24), + GATE_PERI_AO(CLK_PERI_AO_PCIE_P1_MEM, "peri_ao_pcie_p1_mem", "mem_466m", 25), +}; + +static const struct mtk_clk_desc peri_ao_desc = { + .clks = peri_ao_clks, + .num_clks = ARRAY_SIZE(peri_ao_clks), +}; + +static const struct of_device_id of_match_clk_mt8195_peri_ao[] = { + { + .compatible = "mediatek,mt8195-pericfg_ao", + .data = &peri_ao_desc, + }, { + /* sentinel */ + } +}; + +static struct platform_driver clk_mt8195_peri_ao_drv = { + .probe = mtk_clk_simple_probe, + .driver = { + .name = "clk-mt8195-peri_ao", + .of_match_table = of_match_clk_mt8195_peri_ao, + }, +}; +builtin_platform_driver(clk_mt8195_peri_ao_drv); |