From: Caleb Connolly Date: Mon, 8 Apr 2024 13:06:50 +0000 (+0200) Subject: clk/qcom: add driver for sm6115 GCC X-Git-Url: http://git.dujemihanovic.xyz/html/%7B%7B%20.Permalink%20%7D%7D?a=commitdiff_plain;h=60b306e12fb167f322314bedffcd2cfc57dbfbbc;p=u-boot.git clk/qcom: add driver for sm6115 GCC Add a driver for the clock controller in the SM6115 SoC, this is used in the QRB4210 RB2 board. Signed-off-by: Caleb Connolly --- diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig index d7dfe4c0d5..6afa62e198 100644 --- a/drivers/clk/qcom/Kconfig +++ b/drivers/clk/qcom/Kconfig @@ -55,6 +55,14 @@ config CLK_QCOM_SDM845 on the Snapdragon 845 SoC. This driver supports the clocks and resets exposed by the GCC hardware block. +config CLK_QCOM_SM6115 + bool "Qualcomm SM6115 GCC" + select CLK_QCOM + help + Say Y here to enable support for the Global Clock Controller + on the Snapdragon SM6115 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 83aa8a9203..d38c5a9fb8 100644 --- a/drivers/clk/qcom/Makefile +++ b/drivers/clk/qcom/Makefile @@ -9,3 +9,4 @@ obj-$(CONFIG_CLK_QCOM_APQ8096) += clock-apq8096.o obj-$(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 diff --git a/drivers/clk/qcom/clock-sm6115.c b/drivers/clk/qcom/clock-sm6115.c new file mode 100644 index 0000000000..8314a0deb3 --- /dev/null +++ b/drivers/clk/qcom/clock-sm6115.c @@ -0,0 +1,199 @@ +// SPDX-License-Identifier: BSD-3-Clause +/* + * Clock drivers for Qualcomm sm6115 (and sm4250/qrb4210) + * + * Copyright (c) 2024 Linaro Ltd. + * + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "clock-qcom.h" + +#define QUPV3_WRAP0_S4_CMD_RCGR 0x1f608 +#define SDCC1_APPS_CLK_CMD_RCGR 0x38028 +#define SDCC2_APPS_CLK_CMD_RCGR 0x1e00c + +static const struct freq_tbl ftbl_gcc_qupv3_wrap0_s0_clk_src[] = { + F(7372800, CFG_CLK_SRC_GPLL0_AUX2, 1, 384, 15625), + F(14745600, CFG_CLK_SRC_GPLL0_AUX2, 1, 768, 15625), + F(19200000, CFG_CLK_SRC_CXO, 1, 0, 0), + F(29491200, CFG_CLK_SRC_GPLL0_AUX2, 1, 1536, 15625), + F(32000000, CFG_CLK_SRC_GPLL0_AUX2, 1, 8, 75), + F(48000000, CFG_CLK_SRC_GPLL0_AUX2, 1, 4, 25), + F(64000000, CFG_CLK_SRC_GPLL0_AUX2, 1, 16, 75), + F(75000000, CFG_CLK_SRC_GPLL0_AUX2, 4, 0, 0), + F(80000000, CFG_CLK_SRC_GPLL0_AUX2, 1, 4, 15), + F(96000000, CFG_CLK_SRC_GPLL0_AUX2, 1, 8, 25), + F(100000000, CFG_CLK_SRC_GPLL0_AUX2, 3, 0, 0), + F(102400000, CFG_CLK_SRC_GPLL0_AUX2, 1, 128, 375), + F(112000000, CFG_CLK_SRC_GPLL0_AUX2, 1, 28, 75), + F(117964800, CFG_CLK_SRC_GPLL0_AUX2, 1, 6144, 15625), + F(120000000, CFG_CLK_SRC_GPLL0_AUX2, 2.5, 0, 0), + F(128000000, CFG_CLK_SRC_GPLL6, 3, 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_AUX2, 12, 0, 0), + F(50000000, CFG_CLK_SRC_GPLL0_AUX2, 6, 0, 0), + F(100000000, CFG_CLK_SRC_GPLL0_AUX2, 3, 0, 0), + F(200000000, CFG_CLK_SRC_GPLL0, 3, 0, 0), + {} +}; + +static const struct pll_vote_clk gpll0_clk = { + .status = 0, + .status_bit = BIT(31), + .ena_vote = 0x79000, + .vote_bit = BIT(0), +}; + +static const struct gate_clk sm6115_clks[] = { + GATE_CLK(GCC_CFG_NOC_USB3_PRIM_AXI_CLK, 0x1a084, 0x00000001), + GATE_CLK(GCC_QUPV3_WRAP0_CORE_2X_CLK, 0x7900c, 0x00000200), + GATE_CLK(GCC_QUPV3_WRAP0_CORE_CLK, 0x7900c, 0x00000100), + GATE_CLK(GCC_QUPV3_WRAP0_S0_CLK, 0x7900c, 0x00000400), + GATE_CLK(GCC_QUPV3_WRAP0_S1_CLK, 0x7900c, 0x00000800), + GATE_CLK(GCC_QUPV3_WRAP0_S2_CLK, 0x7900c, 0x00001000), + GATE_CLK(GCC_QUPV3_WRAP0_S3_CLK, 0x7900c, 0x00002000), + GATE_CLK(GCC_QUPV3_WRAP0_S4_CLK, 0x7900c, 0x00004000), + GATE_CLK(GCC_QUPV3_WRAP0_S5_CLK, 0x7900c, 0x00008000), + GATE_CLK(GCC_QUPV3_WRAP_0_M_AHB_CLK, 0x7900c, 0x00000040), + GATE_CLK(GCC_QUPV3_WRAP_0_S_AHB_CLK, 0x7900c, 0x00000080), + GATE_CLK(GCC_SDCC1_AHB_CLK, 0x38008, 0x00000001), + GATE_CLK(GCC_SDCC1_APPS_CLK, 0x38004, 0x00000001), + GATE_CLK(GCC_SDCC1_ICE_CORE_CLK, 0x3800c, 0x00000001), + GATE_CLK(GCC_SDCC2_AHB_CLK, 0x1e008, 0x00000001), + GATE_CLK(GCC_SDCC2_APPS_CLK, 0x1e004, 0x00000001), + GATE_CLK(GCC_SYS_NOC_CPUSS_AHB_CLK, 0x79004, 0x00000001), + GATE_CLK(GCC_SYS_NOC_UFS_PHY_AXI_CLK, 0x45098, 0x00000001), + GATE_CLK(GCC_SYS_NOC_USB3_PRIM_AXI_CLK, 0x1a080, 0x00000001), + GATE_CLK(GCC_UFS_PHY_AHB_CLK, 0x45014, 0x00000001), + GATE_CLK(GCC_UFS_PHY_AXI_CLK, 0x45010, 0x00000001), + GATE_CLK(GCC_UFS_PHY_ICE_CORE_CLK, 0x45044, 0x00000001), + GATE_CLK(GCC_UFS_PHY_PHY_AUX_CLK, 0x45078, 0x00000001), + GATE_CLK(GCC_UFS_PHY_RX_SYMBOL_0_CLK, 0x4501c, 0x00000001), + GATE_CLK(GCC_UFS_PHY_TX_SYMBOL_0_CLK, 0x45018, 0x00000001), + GATE_CLK(GCC_UFS_PHY_UNIPRO_CORE_CLK, 0x45040, 0x00000001), + GATE_CLK(GCC_USB30_PRIM_MASTER_CLK, 0x1a010, 0x00000001), + GATE_CLK(GCC_USB30_PRIM_MOCK_UTMI_CLK, 0x1a018, 0x00000001), + GATE_CLK(GCC_USB30_PRIM_SLEEP_CLK, 0x1a014, 0x00000001), + GATE_CLK(GCC_USB3_PRIM_CLKREF_CLK, 0x9f000, 0x00000001), + GATE_CLK(GCC_USB3_PRIM_PHY_COM_AUX_CLK, 0x1a054, 0x00000001), + GATE_CLK(GCC_USB3_PRIM_PHY_PIPE_CLK, 0x1a058, 0x00000001), + GATE_CLK(GCC_AHB2PHY_USB_CLK, 0x1d008, 0x00000001), + GATE_CLK(GCC_UFS_CLKREF_CLK, 0x8c000, 0x00000001), +}; + +static ulong sm6115_set_rate(struct clk *clk, ulong rate) +{ + struct msm_clk_priv *priv = dev_get_priv(clk->dev); + const struct freq_tbl *freq; + + debug("%s: clk %s rate %lu\n", __func__, sm6115_clks[clk->id].name, + rate); + + switch (clk->id) { + case GCC_QUPV3_WRAP0_S4_CLK: /*UART2*/ + freq = qcom_find_freq(ftbl_gcc_qupv3_wrap0_s0_clk_src, rate); + clk_rcg_set_rate_mnd(priv->base, QUPV3_WRAP0_S4_CMD_RCGR, + freq->pre_div, freq->m, freq->n, freq->src, + 16); + return 0; + case GCC_SDCC2_APPS_CLK: + /* Enable GPLL7 so we can point SDCC2_APPS_CLK_SRC RCG at it */ + clk_enable_gpll0(priv->base, &gpll0_clk); + freq = qcom_find_freq(ftbl_gcc_sdcc2_apps_clk_src, rate); + WARN(freq->src != CFG_CLK_SRC_GPLL0, + "SDCC2_APPS_CLK_SRC not set to GPLL0, requested rate %lu\n", + rate); + clk_rcg_set_rate_mnd(priv->base, SDCC2_APPS_CLK_CMD_RCGR, + freq->pre_div, freq->m, freq->n, freq->src, + 8); + return freq->freq; + case GCC_SDCC1_APPS_CLK: + /* The firmware turns this on for us and always sets it to this rate */ + return 384000000; + default: + return rate; + } +} + +static int sm6115_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__, sm6115_clks[clk->id].name); + + switch (clk->id) { + case GCC_USB30_PRIM_MASTER_CLK: + qcom_gate_clk_en(priv, GCC_USB3_PRIM_PHY_COM_AUX_CLK); + qcom_gate_clk_en(priv, GCC_USB3_PRIM_CLKREF_CLK); + break; + } + + qcom_gate_clk_en(priv, clk->id); + + return 0; +} + +static const struct qcom_reset_map sm6115_gcc_resets[] = { + [GCC_QUSB2PHY_PRIM_BCR] = { 0x1c000 }, + [GCC_QUSB2PHY_SEC_BCR] = { 0x1c004 }, + [GCC_SDCC1_BCR] = { 0x38000 }, + [GCC_SDCC2_BCR] = { 0x1e000 }, + [GCC_UFS_PHY_BCR] = { 0x45000 }, + [GCC_USB30_PRIM_BCR] = { 0x1a000 }, + [GCC_USB_PHY_CFG_AHB2PHY_BCR] = { 0x1d000 }, + [GCC_USB3PHY_PHY_PRIM_SP0_BCR] = { 0x1b008 }, + [GCC_USB3_PHY_PRIM_SP0_BCR] = { 0x1b000 }, + [GCC_VCODEC0_BCR] = { 0x58094 }, + [GCC_VENUS_BCR] = { 0x58078 }, + [GCC_VIDEO_INTERFACE_BCR] = { 0x6e000 }, +}; + +static const struct qcom_power_map sm6115_gdscs[] = { + [GCC_USB30_PRIM_GDSC] = { 0x1a004 }, +}; + +static struct msm_clk_data sm6115_gcc_data = { + .resets = sm6115_gcc_resets, + .num_resets = ARRAY_SIZE(sm6115_gcc_resets), + .clks = sm6115_clks, + .num_clks = ARRAY_SIZE(sm6115_clks), + .power_domains = sm6115_gdscs, + .num_power_domains = ARRAY_SIZE(sm6115_gdscs), + + .enable = sm6115_enable, + .set_rate = sm6115_set_rate, +}; + +static const struct udevice_id gcc_sm6115_of_match[] = { + { + .compatible = "qcom,gcc-sm6115", + .data = (ulong)&sm6115_gcc_data, + }, + {} +}; + +U_BOOT_DRIVER(gcc_sm6115) = { + .name = "gcc_sm6115", + .id = UCLASS_NOP, + .of_match = gcc_sm6115_of_match, + .bind = qcom_cc_bind, + .flags = DM_FLAG_PRE_RELOC, +};