From: Sumit Garg Date: Tue, 12 Jul 2022 07:12:11 +0000 (+0530) Subject: clocks: qcom: Add clock driver for QCS404 SoC X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=a4a9d9e874bffa509c31d0752b8155e653f9093f;p=u-boot.git clocks: qcom: Add clock driver for QCS404 SoC Currently this clock driver initializes clocks for UART and eMMC. Along with this import "qcom,gcc-qcs404.h" header from Linux mainline to support DT bindings. Signed-off-by: Sumit Garg --- diff --git a/arch/arm/mach-snapdragon/clock-qcs404.c b/arch/arm/mach-snapdragon/clock-qcs404.c new file mode 100644 index 0000000000..bb8a6fe067 --- /dev/null +++ b/arch/arm/mach-snapdragon/clock-qcs404.c @@ -0,0 +1,79 @@ +// SPDX-License-Identifier: BSD-3-Clause +/* + * Clock drivers for Qualcomm QCS404 + * + * (C) Copyright 2022 Sumit Garg + */ + +#include +#include +#include +#include +#include +#include +#include "clock-snapdragon.h" + +#include + +/* GPLL0 clock control registers */ +#define GPLL0_STATUS_ACTIVE BIT(31) + +static struct vote_clk gcc_blsp1_ahb_clk = { + .cbcr_reg = BLSP1_AHB_CBCR, + .ena_vote = APCS_CLOCK_BRANCH_ENA_VOTE, + .vote_bit = BIT(10) | BIT(5) | BIT(4), +}; + +static const struct bcr_regs uart2_regs = { + .cfg_rcgr = BLSP1_UART2_APPS_CFG_RCGR, + .cmd_rcgr = BLSP1_UART2_APPS_CMD_RCGR, + .M = BLSP1_UART2_APPS_M, + .N = BLSP1_UART2_APPS_N, + .D = BLSP1_UART2_APPS_D, +}; + +static const struct bcr_regs sdc_regs = { + .cfg_rcgr = SDCC_CFG_RCGR(1), + .cmd_rcgr = SDCC_CMD_RCGR(1), + .M = SDCC_M(1), + .N = SDCC_N(1), + .D = SDCC_D(1), +}; + +static struct pll_vote_clk gpll0_vote_clk = { + .status = GPLL0_STATUS, + .status_bit = GPLL0_STATUS_ACTIVE, + .ena_vote = APCS_GPLL_ENA_VOTE, + .vote_bit = BIT(0), +}; + +ulong msm_set_rate(struct clk *clk, ulong rate) +{ + struct msm_clk_priv *priv = dev_get_priv(clk->dev); + + switch (clk->id) { + case GCC_BLSP1_UART2_APPS_CLK: + /* UART: 115200 */ + clk_rcg_set_rate_mnd(priv->base, &uart2_regs, 0, 12, 125, + CFG_CLK_SRC_CXO); + clk_enable_cbc(priv->base + BLSP1_UART2_APPS_CBCR); + break; + case GCC_BLSP1_AHB_CLK: + clk_enable_vote_clk(priv->base, &gcc_blsp1_ahb_clk); + break; + case GCC_SDCC1_APPS_CLK: + /* SDCC1: 200MHz */ + clk_rcg_set_rate_mnd(priv->base, &sdc_regs, 4, 0, 0, + CFG_CLK_SRC_GPLL0); + clk_enable_gpll0(priv->base, &gpll0_vote_clk); + clk_enable_cbc(priv->base + SDCC_APPS_CBCR(1)); + break; + case GCC_SDCC1_AHB_CLK: + clk_enable_cbc(priv->base + SDCC_AHB_CBCR(1)); + break; + default: + return 0; + } + + return 0; +} diff --git a/arch/arm/mach-snapdragon/clock-snapdragon.c b/arch/arm/mach-snapdragon/clock-snapdragon.c index 3deb08ac4a..5652d2fa36 100644 --- a/arch/arm/mach-snapdragon/clock-snapdragon.c +++ b/arch/arm/mach-snapdragon/clock-snapdragon.c @@ -136,6 +136,7 @@ static const struct udevice_id msm_clk_ids[] = { { .compatible = "qcom,gcc-msm8996" }, { .compatible = "qcom,gcc-apq8096" }, { .compatible = "qcom,gcc-sdm845" }, + { .compatible = "qcom,gcc-qcs404" }, { } }; diff --git a/arch/arm/mach-snapdragon/include/mach/sysmap-qcs404.h b/arch/arm/mach-snapdragon/include/mach/sysmap-qcs404.h new file mode 100644 index 0000000000..4dc96b9fbc --- /dev/null +++ b/arch/arm/mach-snapdragon/include/mach/sysmap-qcs404.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Qualcomm QCS404 sysmap + * + * (C) Copyright 2022 Sumit Garg + */ +#ifndef _MACH_SYSMAP_QCS404_H +#define _MACH_SYSMAP_QCS404_H + +#define GICD_BASE (0x0b000000) +#define GICC_BASE (0x0b002000) + +/* Clocks: (from CLK_CTL_BASE) */ +#define GPLL0_STATUS (0x21000) +#define APCS_GPLL_ENA_VOTE (0x45000) +#define APCS_CLOCK_BRANCH_ENA_VOTE (0x45004) + +/* BLSP1 AHB clock (root clock for BLSP) */ +#define BLSP1_AHB_CBCR 0x1008 + +/* Uart clock control registers */ +#define BLSP1_UART2_BCR (0x3028) +#define BLSP1_UART2_APPS_CBCR (0x302C) +#define BLSP1_UART2_APPS_CMD_RCGR (0x3034) +#define BLSP1_UART2_APPS_CFG_RCGR (0x3038) +#define BLSP1_UART2_APPS_M (0x303C) +#define BLSP1_UART2_APPS_N (0x3040) +#define BLSP1_UART2_APPS_D (0x3044) + +/* SD controller clock control registers */ +#define SDCC_BCR(n) (((n) * 0x1000) + 0x41000) +#define SDCC_CMD_RCGR(n) (((n) * 0x1000) + 0x41004) +#define SDCC_CFG_RCGR(n) (((n) * 0x1000) + 0x41008) +#define SDCC_M(n) (((n) * 0x1000) + 0x4100C) +#define SDCC_N(n) (((n) * 0x1000) + 0x41010) +#define SDCC_D(n) (((n) * 0x1000) + 0x41014) +#define SDCC_APPS_CBCR(n) (((n) * 0x1000) + 0x41018) +#define SDCC_AHB_CBCR(n) (((n) * 0x1000) + 0x4101C) + +#endif diff --git a/include/dt-bindings/clock/qcom,gcc-qcs404.h b/include/dt-bindings/clock/qcom,gcc-qcs404.h new file mode 100644 index 0000000000..bc30515433 --- /dev/null +++ b/include/dt-bindings/clock/qcom,gcc-qcs404.h @@ -0,0 +1,180 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2018, The Linux Foundation. All rights reserved. + */ + +#ifndef _DT_BINDINGS_CLK_QCOM_GCC_QCS404_H +#define _DT_BINDINGS_CLK_QCOM_GCC_QCS404_H + +#define GCC_APSS_AHB_CLK_SRC 0 +#define GCC_BLSP1_QUP0_I2C_APPS_CLK_SRC 1 +#define GCC_BLSP1_QUP0_SPI_APPS_CLK_SRC 2 +#define GCC_BLSP1_QUP1_I2C_APPS_CLK_SRC 3 +#define GCC_BLSP1_QUP1_SPI_APPS_CLK_SRC 4 +#define GCC_BLSP1_QUP2_I2C_APPS_CLK_SRC 5 +#define GCC_BLSP1_QUP2_SPI_APPS_CLK_SRC 6 +#define GCC_BLSP1_QUP3_I2C_APPS_CLK_SRC 7 +#define GCC_BLSP1_QUP3_SPI_APPS_CLK_SRC 8 +#define GCC_BLSP1_QUP4_I2C_APPS_CLK_SRC 9 +#define GCC_BLSP1_QUP4_SPI_APPS_CLK_SRC 10 +#define GCC_BLSP1_UART0_APPS_CLK_SRC 11 +#define GCC_BLSP1_UART1_APPS_CLK_SRC 12 +#define GCC_BLSP1_UART2_APPS_CLK_SRC 13 +#define GCC_BLSP1_UART3_APPS_CLK_SRC 14 +#define GCC_BLSP2_QUP0_I2C_APPS_CLK_SRC 15 +#define GCC_BLSP2_QUP0_SPI_APPS_CLK_SRC 16 +#define GCC_BLSP2_UART0_APPS_CLK_SRC 17 +#define GCC_BYTE0_CLK_SRC 18 +#define GCC_EMAC_CLK_SRC 19 +#define GCC_EMAC_PTP_CLK_SRC 20 +#define GCC_ESC0_CLK_SRC 21 +#define GCC_APSS_AHB_CLK 22 +#define GCC_APSS_AXI_CLK 23 +#define GCC_BIMC_APSS_AXI_CLK 24 +#define GCC_BIMC_GFX_CLK 25 +#define GCC_BIMC_MDSS_CLK 26 +#define GCC_BLSP1_AHB_CLK 27 +#define GCC_BLSP1_QUP0_I2C_APPS_CLK 28 +#define GCC_BLSP1_QUP0_SPI_APPS_CLK 29 +#define GCC_BLSP1_QUP1_I2C_APPS_CLK 30 +#define GCC_BLSP1_QUP1_SPI_APPS_CLK 31 +#define GCC_BLSP1_QUP2_I2C_APPS_CLK 32 +#define GCC_BLSP1_QUP2_SPI_APPS_CLK 33 +#define GCC_BLSP1_QUP3_I2C_APPS_CLK 34 +#define GCC_BLSP1_QUP3_SPI_APPS_CLK 35 +#define GCC_BLSP1_QUP4_I2C_APPS_CLK 36 +#define GCC_BLSP1_QUP4_SPI_APPS_CLK 37 +#define GCC_BLSP1_UART0_APPS_CLK 38 +#define GCC_BLSP1_UART1_APPS_CLK 39 +#define GCC_BLSP1_UART2_APPS_CLK 40 +#define GCC_BLSP1_UART3_APPS_CLK 41 +#define GCC_BLSP2_AHB_CLK 42 +#define GCC_BLSP2_QUP0_I2C_APPS_CLK 43 +#define GCC_BLSP2_QUP0_SPI_APPS_CLK 44 +#define GCC_BLSP2_UART0_APPS_CLK 45 +#define GCC_BOOT_ROM_AHB_CLK 46 +#define GCC_DCC_CLK 47 +#define GCC_GENI_IR_H_CLK 48 +#define GCC_ETH_AXI_CLK 49 +#define GCC_ETH_PTP_CLK 50 +#define GCC_ETH_RGMII_CLK 51 +#define GCC_ETH_SLAVE_AHB_CLK 52 +#define GCC_GENI_IR_S_CLK 53 +#define GCC_GP1_CLK 54 +#define GCC_GP2_CLK 55 +#define GCC_GP3_CLK 56 +#define GCC_MDSS_AHB_CLK 57 +#define GCC_MDSS_AXI_CLK 58 +#define GCC_MDSS_BYTE0_CLK 59 +#define GCC_MDSS_ESC0_CLK 60 +#define GCC_MDSS_HDMI_APP_CLK 61 +#define GCC_MDSS_HDMI_PCLK_CLK 62 +#define GCC_MDSS_MDP_CLK 63 +#define GCC_MDSS_PCLK0_CLK 64 +#define GCC_MDSS_VSYNC_CLK 65 +#define GCC_OXILI_AHB_CLK 66 +#define GCC_OXILI_GFX3D_CLK 67 +#define GCC_PCIE_0_AUX_CLK 68 +#define GCC_PCIE_0_CFG_AHB_CLK 69 +#define GCC_PCIE_0_MSTR_AXI_CLK 70 +#define GCC_PCIE_0_PIPE_CLK 71 +#define GCC_PCIE_0_SLV_AXI_CLK 72 +#define GCC_PCNOC_USB2_CLK 73 +#define GCC_PCNOC_USB3_CLK 74 +#define GCC_PDM2_CLK 75 +#define GCC_PDM_AHB_CLK 76 +#define GCC_VSYNC_CLK_SRC 77 +#define GCC_PRNG_AHB_CLK 78 +#define GCC_PWM0_XO512_CLK 79 +#define GCC_PWM1_XO512_CLK 80 +#define GCC_PWM2_XO512_CLK 81 +#define GCC_SDCC1_AHB_CLK 82 +#define GCC_SDCC1_APPS_CLK 83 +#define GCC_SDCC1_ICE_CORE_CLK 84 +#define GCC_SDCC2_AHB_CLK 85 +#define GCC_SDCC2_APPS_CLK 86 +#define GCC_SYS_NOC_USB3_CLK 87 +#define GCC_USB20_MOCK_UTMI_CLK 88 +#define GCC_USB2A_PHY_SLEEP_CLK 89 +#define GCC_USB30_MASTER_CLK 90 +#define GCC_USB30_MOCK_UTMI_CLK 91 +#define GCC_USB30_SLEEP_CLK 92 +#define GCC_USB3_PHY_AUX_CLK 93 +#define GCC_USB3_PHY_PIPE_CLK 94 +#define GCC_USB_HS_PHY_CFG_AHB_CLK 95 +#define GCC_USB_HS_SYSTEM_CLK 96 +#define GCC_GFX3D_CLK_SRC 97 +#define GCC_GP1_CLK_SRC 98 +#define GCC_GP2_CLK_SRC 99 +#define GCC_GP3_CLK_SRC 100 +#define GCC_GPLL0_OUT_MAIN 101 +#define GCC_GPLL1_OUT_MAIN 102 +#define GCC_GPLL3_OUT_MAIN 103 +#define GCC_GPLL4_OUT_MAIN 104 +#define GCC_HDMI_APP_CLK_SRC 105 +#define GCC_HDMI_PCLK_CLK_SRC 106 +#define GCC_MDP_CLK_SRC 107 +#define GCC_PCIE_0_AUX_CLK_SRC 108 +#define GCC_PCIE_0_PIPE_CLK_SRC 109 +#define GCC_PCLK0_CLK_SRC 110 +#define GCC_PDM2_CLK_SRC 111 +#define GCC_SDCC1_APPS_CLK_SRC 112 +#define GCC_SDCC1_ICE_CORE_CLK_SRC 113 +#define GCC_SDCC2_APPS_CLK_SRC 114 +#define GCC_USB20_MOCK_UTMI_CLK_SRC 115 +#define GCC_USB30_MASTER_CLK_SRC 116 +#define GCC_USB30_MOCK_UTMI_CLK_SRC 117 +#define GCC_USB3_PHY_AUX_CLK_SRC 118 +#define GCC_USB_HS_SYSTEM_CLK_SRC 119 +#define GCC_GPLL0_AO_CLK_SRC 120 +#define GCC_USB_HS_INACTIVITY_TIMERS_CLK 122 +#define GCC_GPLL0_AO_OUT_MAIN 123 +#define GCC_GPLL0_SLEEP_CLK_SRC 124 +#define GCC_GPLL6 125 +#define GCC_GPLL6_OUT_AUX 126 +#define GCC_MDSS_MDP_VOTE_CLK 127 +#define GCC_MDSS_ROTATOR_VOTE_CLK 128 +#define GCC_BIMC_GPU_CLK 129 +#define GCC_GTCU_AHB_CLK 130 +#define GCC_GFX_TCU_CLK 131 +#define GCC_GFX_TBU_CLK 132 +#define GCC_SMMU_CFG_CLK 133 +#define GCC_APSS_TCU_CLK 134 +#define GCC_CRYPTO_AHB_CLK 135 +#define GCC_CRYPTO_AXI_CLK 136 +#define GCC_CRYPTO_CLK 137 +#define GCC_MDP_TBU_CLK 138 +#define GCC_QDSS_DAP_CLK 139 +#define GCC_DCC_XO_CLK 140 +#define GCC_WCSS_Q6_AHB_CLK 141 +#define GCC_WCSS_Q6_AXIM_CLK 142 +#define GCC_CDSP_CFG_AHB_CLK 143 +#define GCC_BIMC_CDSP_CLK 144 +#define GCC_CDSP_TBU_CLK 145 +#define GCC_CDSP_BIMC_CLK_SRC 146 + +#define GCC_GENI_IR_BCR 0 +#define GCC_USB_HS_BCR 1 +#define GCC_USB2_HS_PHY_ONLY_BCR 2 +#define GCC_QUSB2_PHY_BCR 3 +#define GCC_USB_HS_PHY_CFG_AHB_BCR 4 +#define GCC_USB2A_PHY_BCR 5 +#define GCC_USB3_PHY_BCR 6 +#define GCC_USB_30_BCR 7 +#define GCC_USB3PHY_PHY_BCR 8 +#define GCC_PCIE_0_BCR 9 +#define GCC_PCIE_0_PHY_BCR 10 +#define GCC_PCIE_0_LINK_DOWN_BCR 11 +#define GCC_PCIEPHY_0_PHY_BCR 12 +#define GCC_EMAC_BCR 13 +#define GCC_CDSP_RESTART 14 +#define GCC_PCIE_0_AXI_MASTER_STICKY_ARES 15 +#define GCC_PCIE_0_AHB_ARES 16 +#define GCC_PCIE_0_AXI_SLAVE_ARES 17 +#define GCC_PCIE_0_AXI_MASTER_ARES 18 +#define GCC_PCIE_0_CORE_STICKY_ARES 19 +#define GCC_PCIE_0_SLEEP_ARES 20 +#define GCC_PCIE_0_PIPE_ARES 21 +#define GCC_WDSP_RESTART 22 + +#endif