From: Caleb Connolly Date: Mon, 8 Apr 2024 13:06:51 +0000 (+0200) Subject: clk/qcom: add driver for sm8250 GCC X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=dcd688229cb16eba603f8ed0ef128da83d5ecd9b;p=u-boot.git clk/qcom: add driver for sm8250 GCC Add a clock driver for the SM8250 SoC. This driver can enable necessary clocks for UART, UFS, USB, and MMC. Signed-off-by: Caleb Connolly --- diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig index 6afa62e198..d4bd8c7e6b 100644 --- a/drivers/clk/qcom/Kconfig +++ b/drivers/clk/qcom/Kconfig @@ -63,6 +63,14 @@ config CLK_QCOM_SM6115 on the Snapdragon SM6115 SoC. This driver supports the clocks and resets exposed by the GCC hardware block. +config CLK_QCOM_SM8250 + bool "Qualcomm SM8250 GCC" + select CLK_QCOM + help + Say Y here to enable support for the Global Clock Controller + on the Snapdragon SM8250 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 d38c5a9fb8..f7fc8b9a70 100644 --- a/drivers/clk/qcom/Makefile +++ b/drivers/clk/qcom/Makefile @@ -10,3 +10,4 @@ obj-$(CONFIG_CLK_QCOM_IPQ4019) += clock-ipq4019.o obj-$(CONFIG_CLK_QCOM_QCM2290) += clock-qcm2290.o obj-$(CONFIG_CLK_QCOM_QCS404) += clock-qcs404.o obj-$(CONFIG_CLK_QCOM_SM6115) += clock-sm6115.o +obj-$(CONFIG_CLK_QCOM_SM8250) += clock-sm8250.o diff --git a/drivers/clk/qcom/clock-qcom.h b/drivers/clk/qcom/clock-qcom.h index ec524157df..cc170d8e3f 100644 --- a/drivers/clk/qcom/clock-qcom.h +++ b/drivers/clk/qcom/clock-qcom.h @@ -10,6 +10,7 @@ #define CFG_CLK_SRC_CXO (0 << 8) #define CFG_CLK_SRC_GPLL0 (1 << 8) #define CFG_CLK_SRC_GPLL0_AUX2 (2 << 8) +#define CFG_CLK_SRC_GPLL9 (2 << 8) #define CFG_CLK_SRC_GPLL6 (4 << 8) #define CFG_CLK_SRC_GPLL7 (3 << 8) #define CFG_CLK_SRC_GPLL0_EVEN (6 << 8) diff --git a/drivers/clk/qcom/clock-sm8250.c b/drivers/clk/qcom/clock-sm8250.c new file mode 100644 index 0000000000..af10fc1162 --- /dev/null +++ b/drivers/clk/qcom/clock-sm8250.c @@ -0,0 +1,282 @@ +// SPDX-License-Identifier: BSD-3-Clause +/* + * Clock drivers for Qualcomm sm8250 + * + * (C) Copyright 2024 Linaro Ltd. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "clock-qcom.h" + +#define GCC_SE12_UART_RCG_REG 0x184D0 +#define GCC_SDCC2_APPS_CLK_SRC_REG 0x1400c + +#define APCS_GPLL0_ENA_VOTE 0x79000 +#define APCS_GPLL9_STATUS 0x1c000 +#define APCS_GPLLX_ENA_REG 0x52018 + +#define USB30_PRIM_MASTER_CLK_CMD_RCGR 0xf020 +#define USB30_PRIM_MOCK_UTMI_CLK_CMD_RCGR 0xf038 +#define USB3_PRIM_PHY_AUX_CMD_RCGR 0xf064 + +static const struct freq_tbl ftbl_gcc_qupv3_wrap1_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(50000000, CFG_CLK_SRC_GPLL0_EVEN, 6, 0, 0), + 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(19200000, CFG_CLK_SRC_CXO, 1, 0, 0), + F(25000000, CFG_CLK_SRC_GPLL0_EVEN, 12, 0, 0), + F(50000000, CFG_CLK_SRC_GPLL0_EVEN, 6, 0, 0), + F(100000000, CFG_CLK_SRC_GPLL0, 6, 0, 0), + F(202000000, CFG_CLK_SRC_GPLL9, 4, 0, 0), + {} +}; + +static struct pll_vote_clk gpll9_vote_clk = { + .status = APCS_GPLL9_STATUS, + .status_bit = BIT(31), + .ena_vote = APCS_GPLLX_ENA_REG, + .vote_bit = BIT(9), +}; + +static ulong sm8250_set_rate(struct clk *clk, ulong rate) +{ + struct msm_clk_priv *priv = dev_get_priv(clk->dev); + const struct freq_tbl *freq; + + if (clk->id < priv->data->num_clks) + debug("%s: %s, requested rate=%ld\n", __func__, + priv->data->clks[clk->id].name, rate); + + switch (clk->id) { + case GCC_QUPV3_WRAP1_S4_CLK: /*UART2*/ + freq = qcom_find_freq(ftbl_gcc_qupv3_wrap1_s4_clk_src, rate); + clk_rcg_set_rate_mnd(priv->base, GCC_SE12_UART_RCG_REG, + freq->pre_div, freq->m, freq->n, freq->src, + 16); + + return freq->freq; + case GCC_SDCC2_APPS_CLK: + /* Enable GPLL9 so that we can point SDCC2_APPS_CLK_SRC at it */ + clk_enable_gpll0(priv->base, &gpll9_vote_clk); + freq = qcom_find_freq(ftbl_gcc_sdcc2_apps_clk_src, rate); + printf("%s: got freq %u\n", __func__, freq->freq); + WARN(freq->src != CFG_CLK_SRC_GPLL9, + "SDCC2_APPS_CLK_SRC not set to GPLL9, requested rate %lu\n", + rate); + clk_rcg_set_rate_mnd(priv->base, GCC_SDCC2_APPS_CLK_SRC_REG, + freq->pre_div, freq->m, freq->n, + CFG_CLK_SRC_GPLL9, 8); + + return rate; + default: + return 0; + } +} + +static const struct gate_clk sm8250_clks[] = { + GATE_CLK(GCC_AGGRE_UFS_CARD_AXI_CLK, 0x750cc, 0x00000001), + GATE_CLK(GCC_AGGRE_UFS_PHY_AXI_CLK, 0x770cc, 0x00000001), + GATE_CLK(GCC_AGGRE_USB3_PRIM_AXI_CLK, 0x0f080, 0x00000001), + GATE_CLK(GCC_AGGRE_USB3_SEC_AXI_CLK, 0x10080, 0x00000001), + GATE_CLK(GCC_CFG_NOC_USB3_PRIM_AXI_CLK, 0x0f07c, 0x00000001), + GATE_CLK(GCC_CFG_NOC_USB3_SEC_AXI_CLK, 0x1007c, 0x00000001), + GATE_CLK(GCC_QMIP_CAMERA_NRT_AHB_CLK, 0x0b018, 0x00000001), + GATE_CLK(GCC_QMIP_CAMERA_RT_AHB_CLK, 0x0b01c, 0x00000001), + GATE_CLK(GCC_QMIP_DISP_AHB_CLK, 0x0b020, 0x00000001), + GATE_CLK(GCC_QMIP_VIDEO_CVP_AHB_CLK, 0x0b010, 0x00000001), + GATE_CLK(GCC_QMIP_VIDEO_VCODEC_AHB_CLK, 0x0b014, 0x00000001), + GATE_CLK(GCC_QUPV3_WRAP0_CORE_2X_CLK, 0x52008, 0x00000200), + GATE_CLK(GCC_QUPV3_WRAP0_CORE_CLK, 0x52008, 0x00000100), + GATE_CLK(GCC_QUPV3_WRAP0_S0_CLK, 0x52008, 0x00000400), + GATE_CLK(GCC_QUPV3_WRAP0_S1_CLK, 0x52008, 0x00000800), + GATE_CLK(GCC_QUPV3_WRAP0_S2_CLK, 0x52008, 0x00001000), + GATE_CLK(GCC_QUPV3_WRAP0_S3_CLK, 0x52008, 0x00002000), + GATE_CLK(GCC_QUPV3_WRAP0_S4_CLK, 0x52008, 0x00004000), + GATE_CLK(GCC_QUPV3_WRAP0_S5_CLK, 0x52008, 0x00008000), + GATE_CLK(GCC_QUPV3_WRAP0_S6_CLK, 0x52008, 0x00010000), + GATE_CLK(GCC_QUPV3_WRAP0_S7_CLK, 0x52008, 0x00020000), + GATE_CLK(GCC_QUPV3_WRAP1_CORE_2X_CLK, 0x52008, 0x00040000), + GATE_CLK(GCC_QUPV3_WRAP1_CORE_CLK, 0x52008, 0x00080000), + GATE_CLK(GCC_QUPV3_WRAP1_S0_CLK, 0x52008, 0x00400000), + GATE_CLK(GCC_QUPV3_WRAP1_S1_CLK, 0x52008, 0x00800000), + GATE_CLK(GCC_QUPV3_WRAP1_S2_CLK, 0x52008, 0x01000000), + GATE_CLK(GCC_QUPV3_WRAP1_S3_CLK, 0x52008, 0x02000000), + GATE_CLK(GCC_QUPV3_WRAP1_S4_CLK, 0x52008, 0x04000000), + GATE_CLK(GCC_QUPV3_WRAP1_S5_CLK, 0x52008, 0x08000000), + GATE_CLK(GCC_QUPV3_WRAP2_CORE_2X_CLK, 0x52010, 0x00000008), + GATE_CLK(GCC_QUPV3_WRAP2_CORE_CLK, 0x52010, 0x00000001), + GATE_CLK(GCC_QUPV3_WRAP2_S0_CLK, 0x52010, 0x00000010), + GATE_CLK(GCC_QUPV3_WRAP2_S1_CLK, 0x52010, 0x00000020), + GATE_CLK(GCC_QUPV3_WRAP2_S2_CLK, 0x52010, 0x00000040), + GATE_CLK(GCC_QUPV3_WRAP2_S3_CLK, 0x52010, 0x00000080), + GATE_CLK(GCC_QUPV3_WRAP2_S4_CLK, 0x52010, 0x00000100), + GATE_CLK(GCC_QUPV3_WRAP2_S5_CLK, 0x52010, 0x00000200), + GATE_CLK(GCC_QUPV3_WRAP_0_M_AHB_CLK, 0x52008, 0x00000040), + GATE_CLK(GCC_QUPV3_WRAP_0_S_AHB_CLK, 0x52008, 0x00000080), + GATE_CLK(GCC_QUPV3_WRAP_1_M_AHB_CLK, 0x52008, 0x00100000), + GATE_CLK(GCC_QUPV3_WRAP_1_S_AHB_CLK, 0x52008, 0x00200000), + GATE_CLK(GCC_QUPV3_WRAP_2_M_AHB_CLK, 0x52010, 0x00000004), + GATE_CLK(GCC_QUPV3_WRAP_2_S_AHB_CLK, 0x52010, 0x00000002), + GATE_CLK(GCC_SDCC2_AHB_CLK, 0x14008, 0x00000001), + GATE_CLK(GCC_SDCC2_APPS_CLK, 0x14004, 0x00000001), + GATE_CLK(GCC_SDCC4_AHB_CLK, 0x16008, 0x00000001), + GATE_CLK(GCC_SDCC4_APPS_CLK, 0x16004, 0x00000001), + GATE_CLK(GCC_UFS_CARD_AHB_CLK, 0x75018, 0x00000001), + GATE_CLK(GCC_UFS_CARD_AXI_CLK, 0x75010, 0x00000001), + GATE_CLK(GCC_UFS_CARD_ICE_CORE_CLK, 0x75064, 0x00000001), + GATE_CLK(GCC_UFS_CARD_PHY_AUX_CLK, 0x7509c, 0x00000001), + GATE_CLK(GCC_UFS_CARD_RX_SYMBOL_0_CLK, 0x75020, 0x00000001), + GATE_CLK(GCC_UFS_CARD_RX_SYMBOL_1_CLK, 0x750b8, 0x00000001), + GATE_CLK(GCC_UFS_CARD_TX_SYMBOL_0_CLK, 0x7501c, 0x00000001), + GATE_CLK(GCC_UFS_CARD_UNIPRO_CORE_CLK, 0x7505c, 0x00000001), + GATE_CLK(GCC_UFS_PHY_AHB_CLK, 0x77018, 0x00000001), + GATE_CLK(GCC_UFS_PHY_AXI_CLK, 0x77010, 0x00000001), + GATE_CLK(GCC_UFS_PHY_ICE_CORE_CLK, 0x77064, 0x00000001), + GATE_CLK(GCC_UFS_PHY_PHY_AUX_CLK, 0x7709c, 0x00000001), + GATE_CLK(GCC_UFS_PHY_RX_SYMBOL_0_CLK, 0x77020, 0x00000001), + GATE_CLK(GCC_UFS_PHY_RX_SYMBOL_1_CLK, 0x770b8, 0x00000001), + GATE_CLK(GCC_UFS_PHY_TX_SYMBOL_0_CLK, 0x7701c, 0x00000001), + GATE_CLK(GCC_UFS_PHY_UNIPRO_CORE_CLK, 0x7705c, 0x00000001), + GATE_CLK(GCC_USB30_PRIM_MASTER_CLK, 0x0f010, 0x00000001), + GATE_CLK(GCC_USB30_PRIM_MOCK_UTMI_CLK, 0x0f01c, 0x00000001), + GATE_CLK(GCC_USB30_PRIM_SLEEP_CLK, 0x0f018, 0x00000001), + GATE_CLK(GCC_USB30_SEC_MASTER_CLK, 0x10010, 0x00000001), + GATE_CLK(GCC_USB30_SEC_MOCK_UTMI_CLK, 0x1001c, 0x00000001), + GATE_CLK(GCC_USB30_SEC_SLEEP_CLK, 0x10018, 0x00000001), + GATE_CLK(GCC_USB3_PRIM_PHY_AUX_CLK, 0x0f054, 0x00000001), + GATE_CLK(GCC_USB3_PRIM_PHY_COM_AUX_CLK, 0x0f058, 0x00000001), + GATE_CLK(GCC_USB3_PRIM_PHY_PIPE_CLK, 0x0f05c, 0x00000001), + GATE_CLK(GCC_USB3_SEC_CLKREF_EN, 0x8c010, 0x00000001), + GATE_CLK(GCC_USB3_SEC_PHY_AUX_CLK, 0x10054, 0x00000001), + GATE_CLK(GCC_USB3_SEC_PHY_COM_AUX_CLK, 0x10058, 0x00000001), + GATE_CLK(GCC_USB3_SEC_PHY_PIPE_CLK, 0x1005c, 0x00000001), +}; + +static int sm8250_enable(struct clk *clk) +{ + struct msm_clk_priv *priv = dev_get_priv(clk->dev); + + if (priv->data->num_clks < clk->id) { + debug("%s: unknown clk id %lu\n", __func__, clk->id); + return 0; + } + + debug("%s: clk %s\n", __func__, sm8250_clks[clk->id].name); + + switch (clk->id) { + 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; + case GCC_USB30_SEC_MASTER_CLK: + qcom_gate_clk_en(priv, GCC_USB3_SEC_PHY_AUX_CLK); + qcom_gate_clk_en(priv, GCC_USB3_SEC_PHY_COM_AUX_CLK); + break; + } + + qcom_gate_clk_en(priv, clk->id); + + return 0; +} + +static const struct qcom_reset_map sm8250_gcc_resets[] = { + [GCC_GPU_BCR] = { 0x71000 }, + [GCC_MMSS_BCR] = { 0xb000 }, + [GCC_NPU_BWMON_BCR] = { 0x73000 }, + [GCC_NPU_BCR] = { 0x4d000 }, + [GCC_PCIE_0_BCR] = { 0x6b000 }, + [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_1_BCR] = { 0x8d000 }, + [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] = { 0x8e000 }, + [GCC_PCIE_2_BCR] = { 0x6000 }, + [GCC_PCIE_2_LINK_DOWN_BCR] = { 0x1f014 }, + [GCC_PCIE_2_NOCSR_COM_PHY_BCR] = { 0x1f020 }, + [GCC_PCIE_2_PHY_BCR] = { 0x1f01c }, + [GCC_PCIE_2_PHY_NOCSR_COM_PHY_BCR] = { 0x1f028 }, + [GCC_PCIE_PHY_BCR] = { 0x6f000 }, + [GCC_PCIE_PHY_CFG_AHB_BCR] = { 0x6f00c }, + [GCC_PCIE_PHY_COM_BCR] = { 0x6f010 }, + [GCC_PDM_BCR] = { 0x33000 }, + [GCC_PRNG_BCR] = { 0x34000 }, + [GCC_QUPV3_WRAPPER_0_BCR] = { 0x17000 }, + [GCC_QUPV3_WRAPPER_1_BCR] = { 0x18000 }, + [GCC_QUPV3_WRAPPER_2_BCR] = { 0x1e000 }, + [GCC_QUSB2PHY_PRIM_BCR] = { 0x12000 }, + [GCC_QUSB2PHY_SEC_BCR] = { 0x12004 }, + [GCC_SDCC2_BCR] = { 0x14000 }, + [GCC_SDCC4_BCR] = { 0x16000 }, + [GCC_TSIF_BCR] = { 0x36000 }, + [GCC_UFS_CARD_BCR] = { 0x75000 }, + [GCC_UFS_PHY_BCR] = { 0x77000 }, + [GCC_USB30_PRIM_BCR] = { 0xf000 }, + [GCC_USB30_SEC_BCR] = { 0x10000 }, + [GCC_USB3_DP_PHY_PRIM_BCR] = { 0x50008 }, + [GCC_USB3_DP_PHY_SEC_BCR] = { 0x50014 }, + [GCC_USB3_PHY_PRIM_BCR] = { 0x50000 }, + [GCC_USB3_PHY_SEC_BCR] = { 0x5000c }, + [GCC_USB3PHY_PHY_PRIM_BCR] = { 0x50004 }, + [GCC_USB3PHY_PHY_SEC_BCR] = { 0x50010 }, + [GCC_USB_PHY_CFG_AHB2PHY_BCR] = { 0x6a000 }, +}; + +static const struct qcom_power_map sm8250_gdscs[] = { + [PCIE_0_GDSC] = { 0x6b004 }, [PCIE_1_GDSC] = { 0x8d004 }, + [PCIE_2_GDSC] = { 0x6004 }, [UFS_CARD_GDSC] = { 0x75004 }, + [UFS_PHY_GDSC] = { 0x77004 }, [USB30_PRIM_GDSC] = { 0xf004 }, + [USB30_SEC_GDSC] = { 0x10004 }, +}; + +static struct msm_clk_data qcs404_gcc_data = { + .resets = sm8250_gcc_resets, + .num_resets = ARRAY_SIZE(sm8250_gcc_resets), + .clks = sm8250_clks, + .num_clks = ARRAY_SIZE(sm8250_clks), + .power_domains = sm8250_gdscs, + .num_power_domains = ARRAY_SIZE(sm8250_gdscs), + + .enable = sm8250_enable, + .set_rate = sm8250_set_rate, +}; + +static const struct udevice_id gcc_sm8250_of_match[] = { + { + .compatible = "qcom,gcc-sm8250", + .data = (ulong)&qcs404_gcc_data, + }, + {} +}; + +U_BOOT_DRIVER(gcc_sm8250) = { + .name = "gcc_sm8250", + .id = UCLASS_NOP, + .of_match = gcc_sm8250_of_match, + .bind = qcom_cc_bind, + .flags = DM_FLAG_PRE_RELOC, +};