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clocks: qcom: Add clock driver for QCS404 SoC

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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 <sumit.garg@linaro.org>
This commit is contained in:
Sumit Garg 2022-07-12 12:42:11 +05:30 • committed by Tom Rini
parent a8effc2ee4
commit a4a9d9e874
4 changed files with 300 additions and 0 deletions
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79
arch/arm/mach-snapdragon/clock-qcs404.c Normal file
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@ -0,0 +1,79 @@
// SPDX-License-Identifier: BSD-3-Clause
/*
* Clock drivers for Qualcomm QCS404
*
* (C) Copyright 2022 Sumit Garg <sumit.garg@linaro.org>
*/
#include <common.h>
#include <clk-uclass.h>
#include <dm.h>
#include <errno.h>
#include <asm/io.h>
#include <linux/bitops.h>
#include "clock-snapdragon.h"
#include <dt-bindings/clock/qcom,gcc-qcs404.h>
/* 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;
}

1
arch/arm/mach-snapdragon/clock-snapdragon.c
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@ -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" },
{ }
};

40
arch/arm/mach-snapdragon/include/mach/sysmap-qcs404.h Normal file
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@ -0,0 +1,40 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Qualcomm QCS404 sysmap
*
* (C) Copyright 2022 Sumit Garg <sumit.garg@linaro.org>
*/
#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

180
include/dt-bindings/clock/qcom,gcc-qcs404.h Normal file
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@ -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