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path: root/drivers/clk/mediatek/clk-mt7986-infracfg.c
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Diffstat (limited to 'drivers/clk/mediatek/clk-mt7986-infracfg.c')
-rw-r--r--drivers/clk/mediatek/clk-mt7986-infracfg.c224
1 files changed, 224 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt7986-infracfg.c b/drivers/clk/mediatek/clk-mt7986-infracfg.c
new file mode 100644
index 000000000000..3be168c34fc0
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt7986-infracfg.c
@@ -0,0 +1,224 @@
+// SPDX-License-Identifier: GPL-1.0
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ * Author: Sam Shih <sam.shih@mediatek.com>
+ * Author: Wenzhen Yu <wenzhen.yu@mediatek.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include "clk-mtk.h"
+#include "clk-gate.h"
+#include "clk-mux.h"
+
+#include <dt-bindings/clock/mt7986-clk.h>
+#include <linux/clk.h>
+
+static DEFINE_SPINLOCK(mt7986_clk_lock);
+
+static const struct mtk_fixed_factor infra_divs[] = {
+ FACTOR(CLK_INFRA_SYSAXI_D2, "infra_sysaxi_d2", "sysaxi_sel", 1, 2),
+};
+
+static const char *const infra_uart_parent[] __initconst = { "csw_f26m_sel",
+ "uart_sel" };
+
+static const char *const infra_spi_parents[] __initconst = { "i2c_sel",
+ "spi_sel" };
+
+static const char *const infra_pwm_bsel_parents[] __initconst = {
+ "top_rtc_32p7k", "csw_f26m_sel", "infra_sysaxi_d2", "pwm_sel"
+};
+
+static const char *const infra_pcie_parents[] __initconst = {
+ "top_rtc_32p7k", "csw_f26m_sel", "top_xtal", "pextp_tl_ck_sel"
+};
+
+static const struct mtk_mux infra_muxes[] = {
+ /* MODULE_CLK_SEL_0 */
+ MUX_GATE_CLR_SET_UPD(CLK_INFRA_UART0_SEL, "infra_uart0_sel",
+ infra_uart_parent, 0x0018, 0x0010, 0x0014, 0, 1,
+ -1, -1, -1),
+ MUX_GATE_CLR_SET_UPD(CLK_INFRA_UART1_SEL, "infra_uart1_sel",
+ infra_uart_parent, 0x0018, 0x0010, 0x0014, 1, 1,
+ -1, -1, -1),
+ MUX_GATE_CLR_SET_UPD(CLK_INFRA_UART2_SEL, "infra_uart2_sel",
+ infra_uart_parent, 0x0018, 0x0010, 0x0014, 2, 1,
+ -1, -1, -1),
+ MUX_GATE_CLR_SET_UPD(CLK_INFRA_SPI0_SEL, "infra_spi0_sel",
+ infra_spi_parents, 0x0018, 0x0010, 0x0014, 4, 1,
+ -1, -1, -1),
+ MUX_GATE_CLR_SET_UPD(CLK_INFRA_SPI1_SEL, "infra_spi1_sel",
+ infra_spi_parents, 0x0018, 0x0010, 0x0014, 5, 1,
+ -1, -1, -1),
+ MUX_GATE_CLR_SET_UPD(CLK_INFRA_PWM1_SEL, "infra_pwm1_sel",
+ infra_pwm_bsel_parents, 0x0018, 0x0010, 0x0014, 9,
+ 2, -1, -1, -1),
+ MUX_GATE_CLR_SET_UPD(CLK_INFRA_PWM2_SEL, "infra_pwm2_sel",
+ infra_pwm_bsel_parents, 0x0018, 0x0010, 0x0014, 11,
+ 2, -1, -1, -1),
+ MUX_GATE_CLR_SET_UPD(CLK_INFRA_PWM_BSEL, "infra_pwm_bsel",
+ infra_pwm_bsel_parents, 0x0018, 0x0010, 0x0014, 13,
+ 2, -1, -1, -1),
+ /* MODULE_CLK_SEL_1 */
+ MUX_GATE_CLR_SET_UPD(CLK_INFRA_PCIE_SEL, "infra_pcie_sel",
+ infra_pcie_parents, 0x0028, 0x0020, 0x0024, 0, 2,
+ -1, -1, -1),
+};
+
+static const struct mtk_gate_regs infra0_cg_regs = {
+ .set_ofs = 0x40,
+ .clr_ofs = 0x44,
+ .sta_ofs = 0x48,
+};
+
+static const struct mtk_gate_regs infra1_cg_regs = {
+ .set_ofs = 0x50,
+ .clr_ofs = 0x54,
+ .sta_ofs = 0x58,
+};
+
+static const struct mtk_gate_regs infra2_cg_regs = {
+ .set_ofs = 0x60,
+ .clr_ofs = 0x64,
+ .sta_ofs = 0x68,
+};
+
+#define GATE_INFRA0(_id, _name, _parent, _shift) \
+ { \
+ .id = _id, .name = _name, .parent_name = _parent, \
+ .regs = &infra0_cg_regs, .shift = _shift, \
+ .ops = &mtk_clk_gate_ops_setclr, \
+ }
+
+#define GATE_INFRA1(_id, _name, _parent, _shift) \
+ { \
+ .id = _id, .name = _name, .parent_name = _parent, \
+ .regs = &infra1_cg_regs, .shift = _shift, \
+ .ops = &mtk_clk_gate_ops_setclr, \
+ }
+
+#define GATE_INFRA2(_id, _name, _parent, _shift) \
+ { \
+ .id = _id, .name = _name, .parent_name = _parent, \
+ .regs = &infra2_cg_regs, .shift = _shift, \
+ .ops = &mtk_clk_gate_ops_setclr, \
+ }
+
+static const struct mtk_gate infra_clks[] = {
+ /* INFRA0 */
+ GATE_INFRA0(CLK_INFRA_GPT_STA, "infra_gpt_sta", "infra_sysaxi_d2", 0),
+ GATE_INFRA0(CLK_INFRA_PWM_HCK, "infra_pwm_hck", "infra_sysaxi_d2", 1),
+ GATE_INFRA0(CLK_INFRA_PWM_STA, "infra_pwm_sta", "infra_pwm_bsel", 2),
+ GATE_INFRA0(CLK_INFRA_PWM1_CK, "infra_pwm1", "infra_pwm1_sel", 3),
+ GATE_INFRA0(CLK_INFRA_PWM2_CK, "infra_pwm2", "infra_pwm2_sel", 4),
+ GATE_INFRA0(CLK_INFRA_CQ_DMA_CK, "infra_cq_dma", "sysaxi_sel", 6),
+ GATE_INFRA0(CLK_INFRA_EIP97_CK, "infra_eip97", "eip_b_sel", 7),
+ GATE_INFRA0(CLK_INFRA_AUD_BUS_CK, "infra_aud_bus", "sysaxi_sel", 8),
+ GATE_INFRA0(CLK_INFRA_AUD_26M_CK, "infra_aud_26m", "csw_f26m_sel", 9),
+ GATE_INFRA0(CLK_INFRA_AUD_L_CK, "infra_aud_l", "aud_l_sel", 10),
+ GATE_INFRA0(CLK_INFRA_AUD_AUD_CK, "infra_aud_aud", "a1sys_sel", 11),
+ GATE_INFRA0(CLK_INFRA_AUD_EG2_CK, "infra_aud_eg2", "a_tuner_sel", 13),
+ GATE_INFRA0(CLK_INFRA_DRAMC_26M_CK, "infra_dramc_26m", "csw_f26m_sel",
+ 14),
+ GATE_INFRA0(CLK_INFRA_DBG_CK, "infra_dbg", "infra_sysaxi_d2", 15),
+ GATE_INFRA0(CLK_INFRA_AP_DMA_CK, "infra_ap_dma", "infra_sysaxi_d2", 16),
+ GATE_INFRA0(CLK_INFRA_SEJ_CK, "infra_sej", "infra_sysaxi_d2", 24),
+ GATE_INFRA0(CLK_INFRA_SEJ_13M_CK, "infra_sej_13m", "csw_f26m_sel", 25),
+ GATE_INFRA0(CLK_INFRA_TRNG_CK, "infra_trng", "sysaxi_sel", 26),
+ /* INFRA1 */
+ GATE_INFRA1(CLK_INFRA_THERM_CK, "infra_therm", "csw_f26m_sel", 0),
+ GATE_INFRA1(CLK_INFRA_I2C0_CK, "infra_i2c0", "i2c_sel", 1),
+ GATE_INFRA1(CLK_INFRA_UART0_CK, "infra_uart0", "infra_uart0_sel", 2),
+ GATE_INFRA1(CLK_INFRA_UART1_CK, "infra_uart1", "infra_uart1_sel", 3),
+ GATE_INFRA1(CLK_INFRA_UART2_CK, "infra_uart2", "infra_uart2_sel", 4),
+ GATE_INFRA1(CLK_INFRA_NFI1_CK, "infra_nfi1", "nfi1x_sel", 8),
+ GATE_INFRA1(CLK_INFRA_SPINFI1_CK, "infra_spinfi1", "spinfi_sel", 9),
+ GATE_INFRA1(CLK_INFRA_NFI_HCK_CK, "infra_nfi_hck", "infra_sysaxi_d2",
+ 10),
+ GATE_INFRA1(CLK_INFRA_SPI0_CK, "infra_spi0", "infra_spi0_sel", 11),
+ GATE_INFRA1(CLK_INFRA_SPI1_CK, "infra_spi1", "infra_spi1_sel", 12),
+ GATE_INFRA1(CLK_INFRA_SPI0_HCK_CK, "infra_spi0_hck", "infra_sysaxi_d2",
+ 13),
+ GATE_INFRA1(CLK_INFRA_SPI1_HCK_CK, "infra_spi1_hck", "infra_sysaxi_d2",
+ 14),
+ GATE_INFRA1(CLK_INFRA_FRTC_CK, "infra_frtc", "top_rtc_32k", 15),
+ GATE_INFRA1(CLK_INFRA_MSDC_CK, "infra_msdc", "emmc_416m_sel", 16),
+ GATE_INFRA1(CLK_INFRA_MSDC_HCK_CK, "infra_msdc_hck", "emmc_250m_sel",
+ 17),
+ GATE_INFRA1(CLK_INFRA_MSDC_133M_CK, "infra_msdc_133m", "sysaxi_sel",
+ 18),
+ GATE_INFRA1(CLK_INFRA_MSDC_66M_CK, "infra_msdc_66m", "infra_sysaxi_d2",
+ 19),
+ GATE_INFRA1(CLK_INFRA_ADC_26M_CK, "infra_adc_26m", "csw_f26m_sel", 20),
+ GATE_INFRA1(CLK_INFRA_ADC_FRC_CK, "infra_adc_frc", "csw_f26m_sel", 21),
+ GATE_INFRA1(CLK_INFRA_FBIST2FPC_CK, "infra_fbist2fpc", "nfi1x_sel", 23),
+ /* INFRA2 */
+ GATE_INFRA2(CLK_INFRA_IUSB_133_CK, "infra_iusb_133", "sysaxi_sel", 0),
+ GATE_INFRA2(CLK_INFRA_IUSB_66M_CK, "infra_iusb_66m", "infra_sysaxi_d2",
+ 1),
+ GATE_INFRA2(CLK_INFRA_IUSB_SYS_CK, "infra_iusb_sys", "u2u3_sys_sel", 2),
+ GATE_INFRA2(CLK_INFRA_IUSB_CK, "infra_iusb", "u2u3_sel", 3),
+ GATE_INFRA2(CLK_INFRA_IPCIE_CK, "infra_ipcie", "pextp_tl_ck_sel", 12),
+ GATE_INFRA2(CLK_INFRA_IPCIE_PIPE_CK, "infra_ipcie_pipe", "top_xtal",
+ 13),
+ GATE_INFRA2(CLK_INFRA_IPCIER_CK, "infra_ipcier", "csw_f26m_sel", 14),
+ GATE_INFRA2(CLK_INFRA_IPCIEB_CK, "infra_ipcieb", "sysaxi_sel", 15),
+};
+
+static int clk_mt7986_infracfg_probe(struct platform_device *pdev)
+{
+ struct clk_onecell_data *clk_data;
+ struct device_node *node = pdev->dev.of_node;
+ int r;
+ void __iomem *base;
+ int nr = ARRAY_SIZE(infra_divs) + ARRAY_SIZE(infra_muxes) +
+ ARRAY_SIZE(infra_clks);
+
+ base = of_iomap(node, 0);
+ if (!base) {
+ pr_err("%s(): ioremap failed\n", __func__);
+ return -ENOMEM;
+ }
+
+ clk_data = mtk_alloc_clk_data(nr);
+
+ if (!clk_data)
+ return -ENOMEM;
+
+ mtk_clk_register_factors(infra_divs, ARRAY_SIZE(infra_divs), clk_data);
+ mtk_clk_register_muxes(infra_muxes, ARRAY_SIZE(infra_muxes), node,
+ &mt7986_clk_lock, clk_data);
+ mtk_clk_register_gates(node, infra_clks, ARRAY_SIZE(infra_clks),
+ clk_data);
+
+ r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+ if (r) {
+ pr_err("%s(): could not register clock provider: %d\n",
+ __func__, r);
+ goto free_infracfg_data;
+ }
+ return r;
+
+free_infracfg_data:
+ mtk_free_clk_data(clk_data);
+ return r;
+
+}
+
+static const struct of_device_id of_match_clk_mt7986_infracfg[] = {
+ { .compatible = "mediatek,mt7986-infracfg", },
+ {}
+};
+
+static struct platform_driver clk_mt7986_infracfg_drv = {
+ .probe = clk_mt7986_infracfg_probe,
+ .driver = {
+ .name = "clk-mt7986-infracfg",
+ .of_match_table = of_match_clk_mt7986_infracfg,
+ },
+};
+builtin_platform_driver(clk_mt7986_infracfg_drv);