[PATCH RFC 10/14] clk: qcom: Add X1E80100 clock driver

From: Neil Armstrong neil.armstrong@linaro.org

Add Clock driver for the GCC block found in the X1E80100 SoC.

Signed-off-by: Neil Armstrong neil.armstrong@linaro.org --- drivers/clk/qcom/Kconfig | 8 + drivers/clk/qcom/Makefile | 1 + drivers/clk/qcom/clock-x1e80100.c | 348 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 357 insertions(+)

diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig index d76fca5dba41..c69eb7d11679 100644 --- a/drivers/clk/qcom/Kconfig +++ b/drivers/clk/qcom/Kconfig @@ -102,7 +102,15 @@ config CLK_QCOM_SC7280 Say Y here to enable support for the Global Clock Controller on the Snapdragon SC7280 SoC. This driver supports the clocks and resets exposed by the GCC hardware block.

+config CLK_QCOM_X1E80100 + bool "Qualcomm X1E80100 GCC" + select CLK_QCOM + help + Say Y here to enable support for the Global Clock Controller + on the Snapdragon X1E80100 SoC. This driver supports the clocks + and resets exposed by the GCC hardware block. + endmenu

endif diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile index ab33f1c5faf9..0189e053f23c 100644 --- a/drivers/clk/qcom/Makefile +++ b/drivers/clk/qcom/Makefile @@ -14,4 +14,5 @@ obj-$(CONFIG_CLK_QCOM_SM6115) += clock-sm6115.o obj-$(CONFIG_CLK_QCOM_SM8150) += clock-sm8150.o obj-$(CONFIG_CLK_QCOM_SM8250) += clock-sm8250.o obj-$(CONFIG_CLK_QCOM_SM8550) += clock-sm8550.o obj-$(CONFIG_CLK_QCOM_SM8650) += clock-sm8650.o +obj-$(CONFIG_CLK_QCOM_X1E80100) += clock-x1e80100.o diff --git a/drivers/clk/qcom/clock-x1e80100.c b/drivers/clk/qcom/clock-x1e80100.c new file mode 100644 index 000000000000..6bcd705f6c8d --- /dev/null +++ b/drivers/clk/qcom/clock-x1e80100.c @@ -0,0 +1,348 @@ +// SPDX-License-Identifier: BSD-3-Clause +/* + * Clock drivers for Qualcomm x1e80100 + * + * (C) Copyright 2024 Linaro Ltd. + */ + +#include <clk-uclass.h> +#include <dm.h> +#include <linux/delay.h> +#include <errno.h> +#include <asm/io.h> +#include <linux/bug.h> +#include <linux/bitops.h> +#include <dt-bindings/clock/qcom,x1e80100-gcc.h> +#include <dt-bindings/clock/qcom,x1e80100-tcsr.h> + +#include "clock-qcom.h" + +/* On-board TCXO, TOFIX get from DT */ +#define TCXO_RATE 38400000 + +/* bi_tcxo_div2 divided after RPMh output */ +#define TCXO_DIV2_RATE (TCXO_RATE / 2) + +static const struct freq_tbl ftbl_gcc_qupv3_wrap0_s4_clk_src[] = { + F(7372800, CFG_CLK_SRC_GPLL0_EVEN, 1, 384, 15625), + F(14745600, CFG_CLK_SRC_GPLL0_EVEN, 1, 768, 15625), + F(19200000, CFG_CLK_SRC_CXO, 1, 0, 0), + F(29491200, CFG_CLK_SRC_GPLL0_EVEN, 1, 1536, 15625), + F(32000000, CFG_CLK_SRC_GPLL0_EVEN, 1, 8, 75), + F(48000000, CFG_CLK_SRC_GPLL0_EVEN, 1, 4, 25), + F(64000000, CFG_CLK_SRC_GPLL0_EVEN, 1, 16, 75), + F(75000000, CFG_CLK_SRC_GPLL0_EVEN, 4, 0, 0), + F(80000000, CFG_CLK_SRC_GPLL0_EVEN, 1, 4, 15), + F(96000000, CFG_CLK_SRC_GPLL0_EVEN, 1, 8, 25), + F(100000000, CFG_CLK_SRC_GPLL0, 6, 0, 0), + { } +}; + +static const struct freq_tbl ftbl_gcc_sdcc2_apps_clk_src[] = { + F(400000, CFG_CLK_SRC_CXO, 12, 1, 4), + F(25000000, CFG_CLK_SRC_GPLL0_EVEN, 12, 0, 0), + F(100000000, CFG_CLK_SRC_GPLL0_EVEN, 3, 0, 0), + /* TOFIX F(202000000, CFG_CLK_SRC_GPLL9, 4, 0, 0), */ + { } +}; + +static const struct freq_tbl ftbl_gcc_usb30_prim_master_clk_src[] = { + F(66666667, CFG_CLK_SRC_GPLL0_EVEN, 4.5, 0, 0), + F(133333333, CFG_CLK_SRC_GPLL0, 4.5, 0, 0), + F(200000000, CFG_CLK_SRC_GPLL0, 3, 0, 0), + F(240000000, CFG_CLK_SRC_GPLL0, 2.5, 0, 0), + { } +}; + +static ulong x1e80100_set_rate(struct clk *clk, ulong rate) +{ + struct msm_clk_priv *priv = dev_get_priv(clk->dev); + const struct freq_tbl *freq; + + switch (clk->id) { + case GCC_QUPV3_WRAP2_S5_CLK: /* UART21 */ + freq = qcom_find_freq(ftbl_gcc_qupv3_wrap0_s4_clk_src, rate); + clk_rcg_set_rate_mnd(priv->base, 0x1e500, + freq->pre_div, freq->m, freq->n, freq->src, 16); + return freq->freq; + case GCC_SDCC2_APPS_CLK: + freq = qcom_find_freq(ftbl_gcc_sdcc2_apps_clk_src, rate); + clk_rcg_set_rate_mnd(priv->base, 0x14018, + freq->pre_div, freq->m, freq->n, freq->src, 8); + return freq->freq; + case GCC_USB30_PRIM_MASTER_CLK: + freq = qcom_find_freq(ftbl_gcc_usb30_prim_master_clk_src, rate); + clk_rcg_set_rate_mnd(priv->base, 0x3902c, + freq->pre_div, freq->m, freq->n, freq->src, 8); + return freq->freq; + case GCC_USB30_PRIM_MOCK_UTMI_CLK: + clk_rcg_set_rate(priv->base, 0x39044, 0, 0); + return TCXO_DIV2_RATE; + default: + return 0; + } +} + +static const struct gate_clk x1e80100_clks[] = { + GATE_CLK(GCC_AGGRE_UFS_PHY_AXI_CLK, 0x770e4, BIT(0)), + GATE_CLK(GCC_CFG_NOC_USB3_PRIM_AXI_CLK, 0x3908c, BIT(0)), + GATE_CLK(GCC_QUPV3_WRAP2_CORE_2X_CLK, 0x52010, BIT(3)), + GATE_CLK(GCC_QUPV3_WRAP2_CORE_CLK, 0x52010, BIT(0)), + GATE_CLK(GCC_QUPV3_WRAP2_S0_CLK, 0x52010, BIT(4)), + GATE_CLK(GCC_QUPV3_WRAP2_S1_CLK, 0x52010, BIT(5)), + GATE_CLK(GCC_QUPV3_WRAP2_S2_CLK, 0x52010, BIT(6)), + GATE_CLK(GCC_QUPV3_WRAP2_S3_CLK, 0x52010, BIT(7)), + GATE_CLK(GCC_QUPV3_WRAP2_S4_CLK, 0x52010, BIT(8)), + GATE_CLK(GCC_QUPV3_WRAP2_S5_CLK, 0x52010, BIT(9)), + GATE_CLK(GCC_QUPV3_WRAP2_S6_CLK, 0x52010, BIT(10)), + GATE_CLK(GCC_QUPV3_WRAP2_S7_CLK, 0x52010, BIT(17)), + GATE_CLK(GCC_QUPV3_WRAP_2_M_AHB_CLK, 0x52010, BIT(2)), + GATE_CLK(GCC_QUPV3_WRAP_2_S_AHB_CLK, 0x52010, BIT(1)), + GATE_CLK(GCC_USB30_PRIM_MASTER_CLK, 0x39018, BIT(0)), + GATE_CLK(GCC_USB30_PRIM_MOCK_UTMI_CLK, 0x39028, BIT(0)), + GATE_CLK(GCC_USB30_PRIM_SLEEP_CLK, 0x39024, BIT(0)), + GATE_CLK(GCC_USB3_PRIM_PHY_AUX_CLK, 0x39060, BIT(0)), + GATE_CLK(GCC_USB3_PRIM_PHY_COM_AUX_CLK, 0x39064, BIT(0)), + GATE_CLK(GCC_USB3_PRIM_PHY_PIPE_CLK, 0x39068, BIT(0)), +}; + +static int x1e80100_enable(struct clk *clk) +{ + struct msm_clk_priv *priv = dev_get_priv(clk->dev); + + switch (clk->id) { + case GCC_AGGRE_USB3_PRIM_AXI_CLK: + qcom_gate_clk_en(priv, GCC_USB30_PRIM_MASTER_CLK); + fallthrough; + case GCC_USB30_PRIM_MASTER_CLK: + qcom_gate_clk_en(priv, GCC_USB3_PRIM_PHY_AUX_CLK); + qcom_gate_clk_en(priv, GCC_USB3_PRIM_PHY_COM_AUX_CLK); + break; + } + + qcom_gate_clk_en(priv, clk->id); + + return 0; +} + +static const struct qcom_reset_map x1e80100_gcc_resets[] = { + [GCC_AV1E_BCR] = { 0x4a000 }, + [GCC_CAMERA_BCR] = { 0x26000 }, + [GCC_DISPLAY_BCR] = { 0x27000 }, + [GCC_GPU_BCR] = { 0x71000 }, + [GCC_PCIE_0_LINK_DOWN_BCR] = { 0x6c014 }, + [GCC_PCIE_0_NOCSR_COM_PHY_BCR] = { 0x6c020 }, + [GCC_PCIE_0_PHY_BCR] = { 0x6c01c }, + [GCC_PCIE_0_PHY_NOCSR_COM_PHY_BCR] = { 0x6c028 }, + [GCC_PCIE_0_TUNNEL_BCR] = { 0xa0000 }, + [GCC_PCIE_1_LINK_DOWN_BCR] = { 0x8e014 }, + [GCC_PCIE_1_NOCSR_COM_PHY_BCR] = { 0x8e020 }, + [GCC_PCIE_1_PHY_BCR] = { 0x8e01c }, + [GCC_PCIE_1_PHY_NOCSR_COM_PHY_BCR] = { 0x8e024 }, + [GCC_PCIE_1_TUNNEL_BCR] = { 0x2c000 }, + [GCC_PCIE_2_LINK_DOWN_BCR] = { 0xa5014 }, + [GCC_PCIE_2_NOCSR_COM_PHY_BCR] = { 0xa5020 }, + [GCC_PCIE_2_PHY_BCR] = { 0xa501c }, + [GCC_PCIE_2_PHY_NOCSR_COM_PHY_BCR] = { 0xa5028 }, + [GCC_PCIE_2_TUNNEL_BCR] = { 0x13000 }, + [GCC_PCIE_3_BCR] = { 0x58000 }, + [GCC_PCIE_3_LINK_DOWN_BCR] = { 0xab014 }, + [GCC_PCIE_3_NOCSR_COM_PHY_BCR] = { 0xab020 }, + [GCC_PCIE_3_PHY_BCR] = { 0xab01c }, + [GCC_PCIE_3_PHY_NOCSR_COM_PHY_BCR] = { 0xab024 }, + [GCC_PCIE_4_BCR] = { 0x6b000 }, + [GCC_PCIE_4_LINK_DOWN_BCR] = { 0xb3014 }, + [GCC_PCIE_4_NOCSR_COM_PHY_BCR] = { 0xb3020 }, + [GCC_PCIE_4_PHY_BCR] = { 0xb301c }, + [GCC_PCIE_4_PHY_NOCSR_COM_PHY_BCR] = { 0xb3028 }, + [GCC_PCIE_5_BCR] = { 0x2f000 }, + [GCC_PCIE_5_LINK_DOWN_BCR] = { 0xaa014 }, + [GCC_PCIE_5_NOCSR_COM_PHY_BCR] = { 0xaa020 }, + [GCC_PCIE_5_PHY_BCR] = { 0xaa01c }, + [GCC_PCIE_5_PHY_NOCSR_COM_PHY_BCR] = { 0xaa028 }, + [GCC_PCIE_6A_BCR] = { 0x31000 }, + [GCC_PCIE_6A_LINK_DOWN_BCR] = { 0xac014 }, + [GCC_PCIE_6A_NOCSR_COM_PHY_BCR] = { 0xac020 }, + [GCC_PCIE_6A_PHY_BCR] = { 0xac01c }, + [GCC_PCIE_6A_PHY_NOCSR_COM_PHY_BCR] = { 0xac024 }, + [GCC_PCIE_6B_BCR] = { 0x8d000 }, + [GCC_PCIE_6B_LINK_DOWN_BCR] = { 0xb5014 }, + [GCC_PCIE_6B_NOCSR_COM_PHY_BCR] = { 0xb5020 }, + [GCC_PCIE_6B_PHY_BCR] = { 0xb501c }, + [GCC_PCIE_6B_PHY_NOCSR_COM_PHY_BCR] = { 0xb5024 }, + [GCC_PCIE_PHY_BCR] = { 0x6f000 }, + [GCC_PCIE_PHY_CFG_AHB_BCR] = { 0x6f00c }, + [GCC_PCIE_PHY_COM_BCR] = { 0x6f010 }, + [GCC_PCIE_RSCC_BCR] = { 0xa4000 }, + [GCC_PDM_BCR] = { 0x33000 }, + [GCC_QUPV3_WRAPPER_0_BCR] = { 0x42000 }, + [GCC_QUPV3_WRAPPER_1_BCR] = { 0x18000 }, + [GCC_QUPV3_WRAPPER_2_BCR] = { 0x1e000 }, + [GCC_QUSB2PHY_HS0_MP_BCR] = { 0x1200c }, + [GCC_QUSB2PHY_HS1_MP_BCR] = { 0x12010 }, + [GCC_QUSB2PHY_PRIM_BCR] = { 0x12000 }, + [GCC_QUSB2PHY_SEC_BCR] = { 0x12004 }, + [GCC_QUSB2PHY_TERT_BCR] = { 0x12008 }, + [GCC_QUSB2PHY_USB20_HS_BCR] = { 0x12014 }, + [GCC_SDCC2_BCR] = { 0x14000 }, + [GCC_SDCC4_BCR] = { 0x16000 }, + [GCC_UFS_PHY_BCR] = { 0x77000 }, + [GCC_USB20_PRIM_BCR] = { 0x29000 }, + [GCC_USB30_MP_BCR] = { 0x17000 }, + [GCC_USB30_PRIM_BCR] = { 0x39000 }, + [GCC_USB30_SEC_BCR] = { 0xa1000 }, + [GCC_USB30_TERT_BCR] = { 0xa2000 }, + [GCC_USB3_MP_SS0_PHY_BCR] = { 0x19008 }, + [GCC_USB3_MP_SS1_PHY_BCR] = { 0x54008 }, + [GCC_USB3_PHY_PRIM_BCR] = { 0x50000 }, + [GCC_USB3_PHY_SEC_BCR] = { 0x2a000 }, + [GCC_USB3_PHY_TERT_BCR] = { 0xa3000 }, + [GCC_USB3_UNIPHY_MP0_BCR] = { 0x19000 }, + [GCC_USB3_UNIPHY_MP1_BCR] = { 0x54000 }, + [GCC_USB3PHY_PHY_PRIM_BCR] = { 0x50004 }, + [GCC_USB3PHY_PHY_SEC_BCR] = { 0x2a004 }, + [GCC_USB3PHY_PHY_TERT_BCR] = { 0xa3004 }, + [GCC_USB3UNIPHY_PHY_MP0_BCR] = { 0x19004 }, + [GCC_USB3UNIPHY_PHY_MP1_BCR] = { 0x54004 }, + [GCC_USB4_0_BCR] = { 0x9f000 }, + [GCC_USB4_0_DP0_PHY_PRIM_BCR] = { 0x50010 }, + [GCC_USB4_1_DP0_PHY_SEC_BCR] = { 0x2a010 }, + [GCC_USB4_2_DP0_PHY_TERT_BCR] = { 0xa3010 }, + [GCC_USB4_1_BCR] = { 0x2b000 }, + [GCC_USB4_2_BCR] = { 0x11000 }, + [GCC_USB_0_PHY_BCR] = { 0x50020 }, + [GCC_USB_1_PHY_BCR] = { 0x2a020 }, + [GCC_USB_2_PHY_BCR] = { 0xa3020 }, + [GCC_VIDEO_BCR] = { 0x32000 }, +}; + +static const struct qcom_power_map x1e80100_gdscs[] = { + [GCC_PCIE_0_TUNNEL_GDSC] = { 0xa0004 }, + [GCC_PCIE_1_TUNNEL_GDSC] = { 0x2c004 }, + [GCC_PCIE_2_TUNNEL_GDSC] = { 0x13004 }, + [GCC_PCIE_3_GDSC] = { 0x58004 }, + [GCC_PCIE_3_PHY_GDSC] = { 0x3e000 }, + [GCC_PCIE_4_GDSC] = { 0x6b004 }, + [GCC_PCIE_4_PHY_GDSC] = { 0x6c000 }, + [GCC_PCIE_5_GDSC] = { 0x2f004 }, + [GCC_PCIE_5_PHY_GDSC] = { 0x30000 }, + [GCC_PCIE_6_PHY_GDSC] = { 0x8e000 }, + [GCC_PCIE_6A_GDSC] = { 0x31004 }, + [GCC_PCIE_6B_GDSC] = { 0x8d004 }, + [GCC_UFS_MEM_PHY_GDSC] = { 0x9e000 }, + [GCC_UFS_PHY_GDSC] = { 0x77004 }, + [GCC_USB20_PRIM_GDSC] = { 0x29004 }, + [GCC_USB30_MP_GDSC] = { 0x17004 }, + [GCC_USB30_PRIM_GDSC] = { 0x39004 }, + [GCC_USB30_SEC_GDSC] = { 0xa1004 }, + [GCC_USB30_TERT_GDSC] = { 0xa2004 }, + [GCC_USB3_MP_SS0_PHY_GDSC] = { 0x1900c }, + [GCC_USB3_MP_SS1_PHY_GDSC] = { 0x5400c }, + [GCC_USB4_0_GDSC] = { 0x9f004 }, + [GCC_USB4_1_GDSC] = { 0x2b004 }, + [GCC_USB4_2_GDSC] = { 0x11004 }, + [GCC_USB_0_PHY_GDSC] = { 0x50024 }, + [GCC_USB_1_PHY_GDSC] = { 0x2a024 }, + [GCC_USB_2_PHY_GDSC] = { 0xa3024 }, +}; + +static struct msm_clk_data x1e80100_gcc_data = { + .resets = x1e80100_gcc_resets, + .num_resets = ARRAY_SIZE(x1e80100_gcc_resets), + .clks = x1e80100_clks, + .num_clks = ARRAY_SIZE(x1e80100_clks), + .power_domains = x1e80100_gdscs, + .num_power_domains = ARRAY_SIZE(x1e80100_gdscs), + + .enable = x1e80100_enable, + .set_rate = x1e80100_set_rate, +}; + +static const struct udevice_id gcc_x1e80100_of_match[] = { + { + .compatible = "qcom,x1e80100-gcc", + .data = (ulong)&x1e80100_gcc_data, + }, + { } +}; + +U_BOOT_DRIVER(gcc_x1e80100) = { + .name = "gcc_x1e80100", + .id = UCLASS_NOP, + .of_match = gcc_x1e80100_of_match, + .bind = qcom_cc_bind, + .flags = DM_FLAG_PRE_RELOC | DM_FLAG_DEFAULT_PD_CTRL_OFF, +}; + +/* TCSRCC */ + +static const struct gate_clk x1e80100_tcsr_clks[] = { + GATE_CLK(TCSR_PCIE_2L_4_CLKREF_EN, 0x15100, BIT(0)), + GATE_CLK(TCSR_PCIE_2L_5_CLKREF_EN, 0x15104, BIT(0)), + GATE_CLK(TCSR_PCIE_8L_CLKREF_EN, 0x15108, BIT(0)), + GATE_CLK(TCSR_USB3_MP0_CLKREF_EN, 0x1510c, BIT(0)), + GATE_CLK(TCSR_USB3_MP1_CLKREF_EN, 0x15110, BIT(0)), + GATE_CLK(TCSR_USB2_1_CLKREF_EN, 0x15114, BIT(0)), + GATE_CLK(TCSR_UFS_PHY_CLKREF_EN, 0x15118, BIT(0)), + GATE_CLK(TCSR_USB4_1_CLKREF_EN, 0x15120, BIT(0)), + GATE_CLK(TCSR_USB4_2_CLKREF_EN, 0x15124, BIT(0)), + GATE_CLK(TCSR_USB2_2_CLKREF_EN, 0x15128, BIT(0)), + GATE_CLK(TCSR_PCIE_4L_CLKREF_EN, 0x1512c, BIT(0)), + GATE_CLK(TCSR_EDP_CLKREF_EN, 0x15130, BIT(0)), +}; + +static struct msm_clk_data x1e80100_tcsrcc_data = { + .clks = x1e80100_tcsr_clks, + .num_clks = ARRAY_SIZE(x1e80100_tcsr_clks), +}; + +static int tcsrcc_x1e80100_clk_enable(struct clk *clk) +{ + struct msm_clk_priv *priv = dev_get_priv(clk->dev); + + qcom_gate_clk_en(priv, clk->id); + + return 0; +} + +static ulong tcsrcc_x1e80100_clk_get_rate(struct clk *clk) +{ + return TCXO_RATE; +} + +static int tcsrcc_x1e80100_clk_probe(struct udevice *dev) +{ + struct msm_clk_data *data = (struct msm_clk_data *)dev_get_driver_data(dev); + struct msm_clk_priv *priv = dev_get_priv(dev); + + priv->base = dev_read_addr(dev); + if (priv->base == FDT_ADDR_T_NONE) + return -EINVAL; + + priv->data = data; + + return 0; +} + +static struct clk_ops tcsrcc_x1e80100_clk_ops = { + .enable = tcsrcc_x1e80100_clk_enable, + .get_rate = tcsrcc_x1e80100_clk_get_rate, +}; + +static const struct udevice_id tcsrcc_x1e80100_of_match[] = { + { + .compatible = "qcom,x1e80100-tcsr", + .data = (ulong)&x1e80100_tcsrcc_data, + }, + { } +}; + +U_BOOT_DRIVER(tcsrcc_x1e80100) = { + .name = "tcsrcc_x1e80100", + .id = UCLASS_CLK, + .of_match = tcsrcc_x1e80100_of_match, + .ops = &tcsrcc_x1e80100_clk_ops, + .priv_auto = sizeof(struct msm_clk_priv), + .probe = tcsrcc_x1e80100_clk_probe, + .flags = DM_FLAG_PRE_RELOC | DM_FLAG_DEFAULT_PD_CTRL_OFF, +};