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60b306e12f
Add a driver for the clock controller in the SM6115 SoC, this is used in the QRB4210 RB2 board. Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
200 lines
6.5 KiB
C
200 lines
6.5 KiB
C
// SPDX-License-Identifier: BSD-3-Clause
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/*
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* Clock drivers for Qualcomm sm6115 (and sm4250/qrb4210)
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*
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* Copyright (c) 2024 Linaro Ltd.
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*
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*/
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#include <clk-uclass.h>
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#include <dm.h>
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#include <linux/delay.h>
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#include <asm/io.h>
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#include <linux/bitops.h>
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#include <linux/bug.h>
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#include <dt-bindings/clock/qcom,gcc-sm6115.h>
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#include "clock-qcom.h"
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#define QUPV3_WRAP0_S4_CMD_RCGR 0x1f608
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#define SDCC1_APPS_CLK_CMD_RCGR 0x38028
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#define SDCC2_APPS_CLK_CMD_RCGR 0x1e00c
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static const struct freq_tbl ftbl_gcc_qupv3_wrap0_s0_clk_src[] = {
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F(7372800, CFG_CLK_SRC_GPLL0_AUX2, 1, 384, 15625),
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F(14745600, CFG_CLK_SRC_GPLL0_AUX2, 1, 768, 15625),
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F(19200000, CFG_CLK_SRC_CXO, 1, 0, 0),
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F(29491200, CFG_CLK_SRC_GPLL0_AUX2, 1, 1536, 15625),
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F(32000000, CFG_CLK_SRC_GPLL0_AUX2, 1, 8, 75),
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F(48000000, CFG_CLK_SRC_GPLL0_AUX2, 1, 4, 25),
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F(64000000, CFG_CLK_SRC_GPLL0_AUX2, 1, 16, 75),
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F(75000000, CFG_CLK_SRC_GPLL0_AUX2, 4, 0, 0),
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F(80000000, CFG_CLK_SRC_GPLL0_AUX2, 1, 4, 15),
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F(96000000, CFG_CLK_SRC_GPLL0_AUX2, 1, 8, 25),
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F(100000000, CFG_CLK_SRC_GPLL0_AUX2, 3, 0, 0),
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F(102400000, CFG_CLK_SRC_GPLL0_AUX2, 1, 128, 375),
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F(112000000, CFG_CLK_SRC_GPLL0_AUX2, 1, 28, 75),
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F(117964800, CFG_CLK_SRC_GPLL0_AUX2, 1, 6144, 15625),
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F(120000000, CFG_CLK_SRC_GPLL0_AUX2, 2.5, 0, 0),
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F(128000000, CFG_CLK_SRC_GPLL6, 3, 0, 0),
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{}
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};
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static const struct freq_tbl ftbl_gcc_sdcc2_apps_clk_src[] = {
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F(400000, CFG_CLK_SRC_CXO, 12, 1, 4),
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F(19200000, CFG_CLK_SRC_CXO, 1, 0, 0),
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F(25000000, CFG_CLK_SRC_GPLL0_AUX2, 12, 0, 0),
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F(50000000, CFG_CLK_SRC_GPLL0_AUX2, 6, 0, 0),
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F(100000000, CFG_CLK_SRC_GPLL0_AUX2, 3, 0, 0),
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F(200000000, CFG_CLK_SRC_GPLL0, 3, 0, 0),
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{}
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};
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static const struct pll_vote_clk gpll0_clk = {
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.status = 0,
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.status_bit = BIT(31),
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.ena_vote = 0x79000,
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.vote_bit = BIT(0),
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};
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static const struct gate_clk sm6115_clks[] = {
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GATE_CLK(GCC_CFG_NOC_USB3_PRIM_AXI_CLK, 0x1a084, 0x00000001),
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GATE_CLK(GCC_QUPV3_WRAP0_CORE_2X_CLK, 0x7900c, 0x00000200),
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GATE_CLK(GCC_QUPV3_WRAP0_CORE_CLK, 0x7900c, 0x00000100),
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GATE_CLK(GCC_QUPV3_WRAP0_S0_CLK, 0x7900c, 0x00000400),
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GATE_CLK(GCC_QUPV3_WRAP0_S1_CLK, 0x7900c, 0x00000800),
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GATE_CLK(GCC_QUPV3_WRAP0_S2_CLK, 0x7900c, 0x00001000),
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GATE_CLK(GCC_QUPV3_WRAP0_S3_CLK, 0x7900c, 0x00002000),
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GATE_CLK(GCC_QUPV3_WRAP0_S4_CLK, 0x7900c, 0x00004000),
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GATE_CLK(GCC_QUPV3_WRAP0_S5_CLK, 0x7900c, 0x00008000),
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GATE_CLK(GCC_QUPV3_WRAP_0_M_AHB_CLK, 0x7900c, 0x00000040),
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GATE_CLK(GCC_QUPV3_WRAP_0_S_AHB_CLK, 0x7900c, 0x00000080),
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GATE_CLK(GCC_SDCC1_AHB_CLK, 0x38008, 0x00000001),
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GATE_CLK(GCC_SDCC1_APPS_CLK, 0x38004, 0x00000001),
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GATE_CLK(GCC_SDCC1_ICE_CORE_CLK, 0x3800c, 0x00000001),
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GATE_CLK(GCC_SDCC2_AHB_CLK, 0x1e008, 0x00000001),
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GATE_CLK(GCC_SDCC2_APPS_CLK, 0x1e004, 0x00000001),
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GATE_CLK(GCC_SYS_NOC_CPUSS_AHB_CLK, 0x79004, 0x00000001),
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GATE_CLK(GCC_SYS_NOC_UFS_PHY_AXI_CLK, 0x45098, 0x00000001),
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GATE_CLK(GCC_SYS_NOC_USB3_PRIM_AXI_CLK, 0x1a080, 0x00000001),
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GATE_CLK(GCC_UFS_PHY_AHB_CLK, 0x45014, 0x00000001),
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GATE_CLK(GCC_UFS_PHY_AXI_CLK, 0x45010, 0x00000001),
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GATE_CLK(GCC_UFS_PHY_ICE_CORE_CLK, 0x45044, 0x00000001),
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GATE_CLK(GCC_UFS_PHY_PHY_AUX_CLK, 0x45078, 0x00000001),
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GATE_CLK(GCC_UFS_PHY_RX_SYMBOL_0_CLK, 0x4501c, 0x00000001),
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GATE_CLK(GCC_UFS_PHY_TX_SYMBOL_0_CLK, 0x45018, 0x00000001),
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GATE_CLK(GCC_UFS_PHY_UNIPRO_CORE_CLK, 0x45040, 0x00000001),
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GATE_CLK(GCC_USB30_PRIM_MASTER_CLK, 0x1a010, 0x00000001),
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GATE_CLK(GCC_USB30_PRIM_MOCK_UTMI_CLK, 0x1a018, 0x00000001),
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GATE_CLK(GCC_USB30_PRIM_SLEEP_CLK, 0x1a014, 0x00000001),
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GATE_CLK(GCC_USB3_PRIM_CLKREF_CLK, 0x9f000, 0x00000001),
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GATE_CLK(GCC_USB3_PRIM_PHY_COM_AUX_CLK, 0x1a054, 0x00000001),
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GATE_CLK(GCC_USB3_PRIM_PHY_PIPE_CLK, 0x1a058, 0x00000001),
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GATE_CLK(GCC_AHB2PHY_USB_CLK, 0x1d008, 0x00000001),
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GATE_CLK(GCC_UFS_CLKREF_CLK, 0x8c000, 0x00000001),
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};
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static ulong sm6115_set_rate(struct clk *clk, ulong rate)
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{
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struct msm_clk_priv *priv = dev_get_priv(clk->dev);
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const struct freq_tbl *freq;
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debug("%s: clk %s rate %lu\n", __func__, sm6115_clks[clk->id].name,
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rate);
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switch (clk->id) {
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case GCC_QUPV3_WRAP0_S4_CLK: /*UART2*/
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freq = qcom_find_freq(ftbl_gcc_qupv3_wrap0_s0_clk_src, rate);
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clk_rcg_set_rate_mnd(priv->base, QUPV3_WRAP0_S4_CMD_RCGR,
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freq->pre_div, freq->m, freq->n, freq->src,
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16);
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return 0;
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case GCC_SDCC2_APPS_CLK:
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/* Enable GPLL7 so we can point SDCC2_APPS_CLK_SRC RCG at it */
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clk_enable_gpll0(priv->base, &gpll0_clk);
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freq = qcom_find_freq(ftbl_gcc_sdcc2_apps_clk_src, rate);
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WARN(freq->src != CFG_CLK_SRC_GPLL0,
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"SDCC2_APPS_CLK_SRC not set to GPLL0, requested rate %lu\n",
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rate);
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clk_rcg_set_rate_mnd(priv->base, SDCC2_APPS_CLK_CMD_RCGR,
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freq->pre_div, freq->m, freq->n, freq->src,
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8);
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return freq->freq;
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case GCC_SDCC1_APPS_CLK:
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/* The firmware turns this on for us and always sets it to this rate */
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return 384000000;
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default:
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return rate;
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}
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}
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static int sm6115_enable(struct clk *clk)
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{
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struct msm_clk_priv *priv = dev_get_priv(clk->dev);
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if (priv->data->num_clks < clk->id) {
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debug("%s: unknown clk id %lu\n", __func__, clk->id);
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return 0;
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}
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debug("%s: clk %s\n", __func__, sm6115_clks[clk->id].name);
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switch (clk->id) {
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case GCC_USB30_PRIM_MASTER_CLK:
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qcom_gate_clk_en(priv, GCC_USB3_PRIM_PHY_COM_AUX_CLK);
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qcom_gate_clk_en(priv, GCC_USB3_PRIM_CLKREF_CLK);
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break;
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}
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qcom_gate_clk_en(priv, clk->id);
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return 0;
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}
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static const struct qcom_reset_map sm6115_gcc_resets[] = {
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[GCC_QUSB2PHY_PRIM_BCR] = { 0x1c000 },
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[GCC_QUSB2PHY_SEC_BCR] = { 0x1c004 },
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[GCC_SDCC1_BCR] = { 0x38000 },
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[GCC_SDCC2_BCR] = { 0x1e000 },
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[GCC_UFS_PHY_BCR] = { 0x45000 },
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[GCC_USB30_PRIM_BCR] = { 0x1a000 },
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[GCC_USB_PHY_CFG_AHB2PHY_BCR] = { 0x1d000 },
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[GCC_USB3PHY_PHY_PRIM_SP0_BCR] = { 0x1b008 },
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[GCC_USB3_PHY_PRIM_SP0_BCR] = { 0x1b000 },
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[GCC_VCODEC0_BCR] = { 0x58094 },
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[GCC_VENUS_BCR] = { 0x58078 },
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[GCC_VIDEO_INTERFACE_BCR] = { 0x6e000 },
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};
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static const struct qcom_power_map sm6115_gdscs[] = {
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[GCC_USB30_PRIM_GDSC] = { 0x1a004 },
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};
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static struct msm_clk_data sm6115_gcc_data = {
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.resets = sm6115_gcc_resets,
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.num_resets = ARRAY_SIZE(sm6115_gcc_resets),
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.clks = sm6115_clks,
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.num_clks = ARRAY_SIZE(sm6115_clks),
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.power_domains = sm6115_gdscs,
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.num_power_domains = ARRAY_SIZE(sm6115_gdscs),
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.enable = sm6115_enable,
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.set_rate = sm6115_set_rate,
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};
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static const struct udevice_id gcc_sm6115_of_match[] = {
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{
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.compatible = "qcom,gcc-sm6115",
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.data = (ulong)&sm6115_gcc_data,
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},
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{}
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};
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U_BOOT_DRIVER(gcc_sm6115) = {
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.name = "gcc_sm6115",
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.id = UCLASS_NOP,
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.of_match = gcc_sm6115_of_match,
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.bind = qcom_cc_bind,
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.flags = DM_FLAG_PRE_RELOC,
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};
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