clk: qcom: Add SM8650 clock driver
Add the GCC and TCSRCC clock driver for the SM8650 SoC.
The GCC driver uses the clk-qcom infrastructure to support GDSCs,
Resets and gates. While the TCSRCC is a simpler clock driver which
only supports gates.
The GCC enable and set_rate callbacks contains some tweaks to
setup clocks for Debug UART, SDCard controller and USB.
The TCSRCC gates returns the XO frequency, which is used by the
Synopsys eUSB2 driver to determine the PHY configuration.
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
index c955f1c..45d63c6 100644
--- a/drivers/clk/qcom/Kconfig
+++ b/drivers/clk/qcom/Kconfig
@@ -78,6 +78,14 @@
on the Snapdragon SM8550 SoC. This driver supports the clocks
and resets exposed by the GCC hardware block.
+config CLK_QCOM_SM8650
+ bool "Qualcomm SM8650 GCC"
+ select CLK_QCOM
+ help
+ Say Y here to enable support for the Global Clock Controller
+ on the Snapdragon SM8650 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 6cd7285..dec20e4 100644
--- a/drivers/clk/qcom/Makefile
+++ b/drivers/clk/qcom/Makefile
@@ -12,3 +12,4 @@
obj-$(CONFIG_CLK_QCOM_SM6115) += clock-sm6115.o
obj-$(CONFIG_CLK_QCOM_SM8250) += clock-sm8250.o
obj-$(CONFIG_CLK_QCOM_SM8550) += clock-sm8550.o
+obj-$(CONFIG_CLK_QCOM_SM8650) += clock-sm8650.o
diff --git a/drivers/clk/qcom/clock-sm8650.c b/drivers/clk/qcom/clock-sm8650.c
new file mode 100644
index 0000000..0ce83e9
--- /dev/null
+++ b/drivers/clk/qcom/clock-sm8650.c
@@ -0,0 +1,332 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Clock drivers for Qualcomm sm8650
+ *
+ * (C) Copyright 2024 Linaro Ltd.
+ */
+
+#include <clk-uclass.h>
+#include <dm.h>
+#include <linux/delay.h>
+#include <errno.h>
+#include <asm/io.h>
+#include <linux/bug.h>
+#include <linux/bitops.h>
+#include <dt-bindings/clock/qcom,sm8650-gcc.h>
+#include <dt-bindings/clock/qcom,sm8650-tcsr.h>
+
+#include "clock-qcom.h"
+
+/* On-board TCXO, TOFIX get from DT */
+#define TCXO_RATE 38400000
+
+/* bi_tcxo_div2 divided after RPMh output */
+#define TCXO_DIV2_RATE (TCXO_RATE / 2)
+
+static const struct freq_tbl ftbl_gcc_qupv3_wrap1_s3_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(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(25000000, CFG_CLK_SRC_GPLL0_EVEN, 12, 0, 0),
+ F(100000000, CFG_CLK_SRC_GPLL0_EVEN, 3, 0, 0),
+ /* TOFIX F(202000000, CFG_CLK_SRC_GPLL9, 4, 0, 0), */
+ { }
+};
+
+static const struct freq_tbl ftbl_gcc_usb30_prim_master_clk_src[] = {
+ F(66666667, CFG_CLK_SRC_GPLL0_EVEN, 4.5, 0, 0),
+ F(133333333, CFG_CLK_SRC_GPLL0, 4.5, 0, 0),
+ F(200000000, CFG_CLK_SRC_GPLL0, 3, 0, 0),
+ F(240000000, CFG_CLK_SRC_GPLL0, 2.5, 0, 0),
+ { }
+};
+
+static ulong sm8650_set_rate(struct clk *clk, ulong rate)
+{
+ struct msm_clk_priv *priv = dev_get_priv(clk->dev);
+ const struct freq_tbl *freq;
+
+ switch (clk->id) {
+ case GCC_QUPV3_WRAP2_S7_CLK: /* UART15 */
+ freq = qcom_find_freq(ftbl_gcc_qupv3_wrap1_s3_clk_src, rate);
+ clk_rcg_set_rate_mnd(priv->base, 0x1e898,
+ freq->pre_div, freq->m, freq->n, freq->src, 16);
+ return freq->freq;
+ case GCC_SDCC2_APPS_CLK:
+ freq = qcom_find_freq(ftbl_gcc_sdcc2_apps_clk_src, rate);
+ clk_rcg_set_rate_mnd(priv->base, 0x14018,
+ freq->pre_div, freq->m, freq->n, freq->src, 8);
+ return freq->freq;
+ case GCC_USB30_PRIM_MASTER_CLK:
+ freq = qcom_find_freq(ftbl_gcc_usb30_prim_master_clk_src, rate);
+ clk_rcg_set_rate_mnd(priv->base, 0x3902c,
+ freq->pre_div, freq->m, freq->n, freq->src, 8);
+ return freq->freq;
+ case GCC_USB30_PRIM_MOCK_UTMI_CLK:
+ clk_rcg_set_rate(priv->base, 0x39044, 0, 0);
+ return TCXO_DIV2_RATE;
+ case GCC_USB3_PRIM_PHY_AUX_CLK_SRC:
+ clk_rcg_set_rate(priv->base, 0x39070, 0, 0);
+ return TCXO_DIV2_RATE;
+ default:
+ return 0;
+ }
+}
+
+static const struct gate_clk sm8650_clks[] = {
+ GATE_CLK(GCC_AGGRE_NOC_PCIE_AXI_CLK, 0x52000, BIT(12)),
+ GATE_CLK(GCC_AGGRE_UFS_PHY_AXI_CLK, 0x770e4, BIT(0)),
+ GATE_CLK(GCC_AGGRE_UFS_PHY_AXI_HW_CTL_CLK, 0x770e4, BIT(1)),
+ GATE_CLK(GCC_AGGRE_USB3_PRIM_AXI_CLK, 0x3908c, BIT(0)),
+ GATE_CLK(GCC_CNOC_PCIE_SF_AXI_CLK, 0x52008, BIT(6)),
+ GATE_CLK(GCC_DDRSS_GPU_AXI_CLK, 0x71154, BIT(0)),
+ GATE_CLK(GCC_DDRSS_PCIE_SF_QTB_CLK, 0x52000, BIT(19)),
+ GATE_CLK(GCC_PCIE_0_AUX_CLK, 0x52008, BIT(3)),
+ GATE_CLK(GCC_PCIE_0_CFG_AHB_CLK, 0x52008, BIT(2)),
+ GATE_CLK(GCC_PCIE_0_MSTR_AXI_CLK, 0x52008, BIT(1)),
+ GATE_CLK(GCC_PCIE_0_PHY_RCHNG_CLK, 0x52000, BIT(22)),
+ GATE_CLK(GCC_PCIE_0_PIPE_CLK, 0x52008, BIT(4)),
+ GATE_CLK(GCC_PCIE_0_SLV_AXI_CLK, 0x52008, BIT(0)),
+ GATE_CLK(GCC_PCIE_0_SLV_Q2A_AXI_CLK, 0x52008, BIT(5)),
+ GATE_CLK(GCC_PCIE_1_AUX_CLK, 0x52000, BIT(29)),
+ GATE_CLK(GCC_PCIE_1_CFG_AHB_CLK, 0x52000, BIT(28)),
+ GATE_CLK(GCC_PCIE_1_MSTR_AXI_CLK, 0x52000, BIT(27)),
+ GATE_CLK(GCC_PCIE_1_PHY_AUX_CLK, 0x52000, BIT(24)),
+ GATE_CLK(GCC_PCIE_1_PHY_RCHNG_CLK, 0x52000, BIT(23)),
+ GATE_CLK(GCC_PCIE_1_PIPE_CLK, 0x52000, BIT(30)),
+ GATE_CLK(GCC_PCIE_1_SLV_AXI_CLK, 0x52000, BIT(26)),
+ GATE_CLK(GCC_PCIE_1_SLV_Q2A_AXI_CLK, 0x52000, BIT(25)),
+ GATE_CLK(GCC_QUPV3_I2C_CORE_CLK, 0x52008, BIT(8)),
+ GATE_CLK(GCC_QUPV3_I2C_S0_CLK, 0x52008, BIT(10)),
+ GATE_CLK(GCC_QUPV3_I2C_S1_CLK, 0x52008, BIT(11)),
+ GATE_CLK(GCC_QUPV3_I2C_S2_CLK, 0x52008, BIT(12)),
+ GATE_CLK(GCC_QUPV3_I2C_S3_CLK, 0x52008, BIT(13)),
+ GATE_CLK(GCC_QUPV3_I2C_S4_CLK, 0x52008, BIT(14)),
+ GATE_CLK(GCC_QUPV3_I2C_S5_CLK, 0x52008, BIT(15)),
+ GATE_CLK(GCC_QUPV3_I2C_S6_CLK, 0x52008, BIT(16)),
+ GATE_CLK(GCC_QUPV3_I2C_S7_CLK, 0x52008, BIT(17)),
+ GATE_CLK(GCC_QUPV3_I2C_S8_CLK, 0x52010, BIT(14)),
+ GATE_CLK(GCC_QUPV3_I2C_S9_CLK, 0x52010, BIT(15)),
+ GATE_CLK(GCC_QUPV3_I2C_S_AHB_CLK, 0x52008, BIT(7)),
+ GATE_CLK(GCC_QUPV3_WRAP1_CORE_2X_CLK, 0x52008, BIT(18)),
+ GATE_CLK(GCC_QUPV3_WRAP1_CORE_CLK, 0x52008, BIT(19)),
+ GATE_CLK(GCC_QUPV3_WRAP1_S0_CLK, 0x52008, BIT(22)),
+ GATE_CLK(GCC_QUPV3_WRAP1_S1_CLK, 0x52008, BIT(23)),
+ GATE_CLK(GCC_QUPV3_WRAP1_S2_CLK, 0x52008, BIT(24)),
+ GATE_CLK(GCC_QUPV3_WRAP1_S3_CLK, 0x52008, BIT(25)),
+ GATE_CLK(GCC_QUPV3_WRAP1_S4_CLK, 0x52008, BIT(26)),
+ GATE_CLK(GCC_QUPV3_WRAP1_S5_CLK, 0x52008, BIT(27)),
+ GATE_CLK(GCC_QUPV3_WRAP1_S6_CLK, 0x52008, BIT(28)),
+ GATE_CLK(GCC_QUPV3_WRAP1_S7_CLK, 0x52010, BIT(16)),
+ GATE_CLK(GCC_QUPV3_WRAP2_CORE_2X_CLK, 0x52010, BIT(3)),
+ GATE_CLK(GCC_QUPV3_WRAP2_CORE_CLK, 0x52010, BIT(0)),
+ GATE_CLK(GCC_QUPV3_WRAP2_S0_CLK, 0x52010, BIT(4)),
+ GATE_CLK(GCC_QUPV3_WRAP2_S1_CLK, 0x52010, BIT(5)),
+ GATE_CLK(GCC_QUPV3_WRAP2_S2_CLK, 0x52010, BIT(6)),
+ GATE_CLK(GCC_QUPV3_WRAP2_S3_CLK, 0x52010, BIT(7)),
+ GATE_CLK(GCC_QUPV3_WRAP2_S4_CLK, 0x52010, BIT(8)),
+ GATE_CLK(GCC_QUPV3_WRAP2_S5_CLK, 0x52010, BIT(9)),
+ GATE_CLK(GCC_QUPV3_WRAP2_S6_CLK, 0x52010, BIT(10)),
+ GATE_CLK(GCC_QUPV3_WRAP2_S7_CLK, 0x52010, BIT(17)),
+ GATE_CLK(GCC_QUPV3_WRAP_1_M_AHB_CLK, 0x52008, BIT(20)),
+ GATE_CLK(GCC_QUPV3_WRAP_1_S_AHB_CLK, 0x52008, BIT(21)),
+ GATE_CLK(GCC_QUPV3_WRAP_2_M_AHB_CLK, 0x52010, BIT(2)),
+ GATE_CLK(GCC_QUPV3_WRAP_2_S_AHB_CLK, 0x52010, BIT(1)),
+ GATE_CLK(GCC_SDCC2_AHB_CLK, 0x14010, BIT(0)),
+ GATE_CLK(GCC_SDCC2_APPS_CLK, 0x14004, BIT(0)),
+ GATE_CLK(GCC_UFS_PHY_AHB_CLK, 0x77024, BIT(0)),
+ GATE_CLK(GCC_UFS_PHY_AXI_CLK, 0x77018, BIT(0)),
+ GATE_CLK(GCC_UFS_PHY_AXI_HW_CTL_CLK, 0x77018, BIT(1)),
+ GATE_CLK(GCC_UFS_PHY_ICE_CORE_CLK, 0x77074, BIT(0)),
+ GATE_CLK(GCC_UFS_PHY_ICE_CORE_HW_CTL_CLK, 0x77074, BIT(1)),
+ GATE_CLK(GCC_UFS_PHY_PHY_AUX_CLK, 0x770b0, BIT(0)),
+ GATE_CLK(GCC_UFS_PHY_PHY_AUX_HW_CTL_CLK, 0x770b0, BIT(1)),
+ GATE_CLK(GCC_UFS_PHY_RX_SYMBOL_0_CLK, 0x7702c, BIT(0)),
+ GATE_CLK(GCC_UFS_PHY_RX_SYMBOL_1_CLK, 0x770cc, BIT(0)),
+ GATE_CLK(GCC_UFS_PHY_TX_SYMBOL_0_CLK, 0x77028, BIT(0)),
+ GATE_CLK(GCC_UFS_PHY_UNIPRO_CORE_CLK, 0x77068, BIT(0)),
+ GATE_CLK(GCC_UFS_PHY_UNIPRO_CORE_HW_CTL_CLK, 0x77068, BIT(1)),
+ GATE_CLK(GCC_USB30_PRIM_MASTER_CLK, 0x39018, BIT(0)),
+ GATE_CLK(GCC_USB30_PRIM_MOCK_UTMI_CLK, 0x39028, BIT(0)),
+ GATE_CLK(GCC_USB30_PRIM_SLEEP_CLK, 0x39024, BIT(0)),
+ GATE_CLK(GCC_USB3_PRIM_PHY_AUX_CLK, 0x39060, BIT(0)),
+ GATE_CLK(GCC_USB3_PRIM_PHY_COM_AUX_CLK, 0x39064, BIT(0)),
+ GATE_CLK(GCC_USB3_PRIM_PHY_PIPE_CLK, 0x39068, BIT(0)),
+};
+
+static int sm8650_enable(struct clk *clk)
+{
+ struct msm_clk_priv *priv = dev_get_priv(clk->dev);
+
+ switch (clk->id) {
+ case GCC_AGGRE_USB3_PRIM_AXI_CLK:
+ qcom_gate_clk_en(priv, GCC_USB30_PRIM_MASTER_CLK);
+ fallthrough;
+ 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;
+ }
+
+ qcom_gate_clk_en(priv, clk->id);
+
+ return 0;
+}
+
+static const struct qcom_reset_map sm8650_gcc_resets[] = {
+ [GCC_CAMERA_BCR] = { 0x26000 },
+ [GCC_DISPLAY_BCR] = { 0x27000 },
+ [GCC_GPU_BCR] = { 0x71000 },
+ [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] = { 0x8e024 },
+ [GCC_PCIE_PHY_BCR] = { 0x6f000 },
+ [GCC_PCIE_PHY_CFG_AHB_BCR] = { 0x6f00c },
+ [GCC_PCIE_PHY_COM_BCR] = { 0x6f010 },
+ [GCC_PDM_BCR] = { 0x33000 },
+ [GCC_QUPV3_WRAPPER_1_BCR] = { 0x18000 },
+ [GCC_QUPV3_WRAPPER_2_BCR] = { 0x1e000 },
+ [GCC_QUPV3_WRAPPER_3_BCR] = { 0x19000 },
+ [GCC_QUPV3_WRAPPER_I2C_BCR] = { 0x17000 },
+ [GCC_QUSB2PHY_PRIM_BCR] = { 0x12000 },
+ [GCC_QUSB2PHY_SEC_BCR] = { 0x12004 },
+ [GCC_SDCC2_BCR] = { 0x14000 },
+ [GCC_SDCC4_BCR] = { 0x16000 },
+ [GCC_UFS_PHY_BCR] = { 0x77000 },
+ [GCC_USB30_PRIM_BCR] = { 0x39000 },
+ [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_VIDEO_AXI0_CLK_ARES] = { 0x32018, 2 },
+ [GCC_VIDEO_AXI1_CLK_ARES] = { 0x32024, 2 },
+ [GCC_VIDEO_BCR] = { 0x32000 },
+};
+
+static const struct qcom_power_map sm8650_gdscs[] = {
+ [PCIE_0_GDSC] = { 0x6b004 },
+ [PCIE_0_PHY_GDSC] = { 0x6c000 },
+ [PCIE_1_GDSC] = { 0x8d004 },
+ [PCIE_1_PHY_GDSC] = { 0x8e000 },
+ [UFS_PHY_GDSC] = { 0x77004 },
+ [UFS_MEM_PHY_GDSC] = { 0x9e000 },
+ [USB30_PRIM_GDSC] = { 0x39004 },
+ [USB3_PHY_GDSC] = { 0x50018 },
+};
+
+static struct msm_clk_data sm8650_gcc_data = {
+ .resets = sm8650_gcc_resets,
+ .num_resets = ARRAY_SIZE(sm8650_gcc_resets),
+ .clks = sm8650_clks,
+ .num_clks = ARRAY_SIZE(sm8650_clks),
+ .power_domains = sm8650_gdscs,
+ .num_power_domains = ARRAY_SIZE(sm8650_gdscs),
+
+ .enable = sm8650_enable,
+ .set_rate = sm8650_set_rate,
+};
+
+static const struct udevice_id gcc_sm8650_of_match[] = {
+ {
+ .compatible = "qcom,sm8650-gcc",
+ .data = (ulong)&sm8650_gcc_data,
+ },
+ { }
+};
+
+U_BOOT_DRIVER(gcc_sm8650) = {
+ .name = "gcc_sm8650",
+ .id = UCLASS_NOP,
+ .of_match = gcc_sm8650_of_match,
+ .bind = qcom_cc_bind,
+ .flags = DM_FLAG_PRE_RELOC | DM_FLAG_DEFAULT_PD_CTRL_OFF,
+};
+
+/* TCSRCC */
+
+static const struct gate_clk sm8650_tcsr_clks[] = {
+ GATE_CLK(TCSR_PCIE_0_CLKREF_EN, 0x31100, BIT(0)),
+ GATE_CLK(TCSR_PCIE_1_CLKREF_EN, 0x31114, BIT(0)),
+ GATE_CLK(TCSR_UFS_CLKREF_EN, 0x31110, BIT(0)),
+ GATE_CLK(TCSR_UFS_PAD_CLKREF_EN, 0x31104, BIT(0)),
+ GATE_CLK(TCSR_USB2_CLKREF_EN, 0x31118, BIT(0)),
+ GATE_CLK(TCSR_USB3_CLKREF_EN, 0x31108, BIT(0)),
+};
+
+static struct msm_clk_data sm8650_tcsrcc_data = {
+ .clks = sm8650_tcsr_clks,
+ .num_clks = ARRAY_SIZE(sm8650_tcsr_clks),
+};
+
+static int tcsrcc_sm8650_clk_enable(struct clk *clk)
+{
+ struct msm_clk_priv *priv = dev_get_priv(clk->dev);
+
+ qcom_gate_clk_en(priv, clk->id);
+
+ return 0;
+}
+
+static ulong tcsrcc_sm8650_clk_get_rate(struct clk *clk)
+{
+ return TCXO_RATE;
+}
+
+static int tcsrcc_sm8650_clk_probe(struct udevice *dev)
+{
+ struct msm_clk_data *data = (struct msm_clk_data *)dev_get_driver_data(dev);
+ struct msm_clk_priv *priv = dev_get_priv(dev);
+
+ priv->base = dev_read_addr(dev);
+ if (priv->base == FDT_ADDR_T_NONE)
+ return -EINVAL;
+
+ priv->data = data;
+
+ return 0;
+}
+
+static struct clk_ops tcsrcc_sm8650_clk_ops = {
+ .enable = tcsrcc_sm8650_clk_enable,
+ .get_rate = tcsrcc_sm8650_clk_get_rate,
+};
+
+static const struct udevice_id tcsrcc_sm8650_of_match[] = {
+ {
+ .compatible = "qcom,sm8650-tcsr",
+ .data = (ulong)&sm8650_tcsrcc_data,
+ },
+ { }
+};
+
+U_BOOT_DRIVER(tcsrcc_sm8650) = {
+ .name = "tcsrcc_sm8650",
+ .id = UCLASS_CLK,
+ .of_match = tcsrcc_sm8650_of_match,
+ .ops = &tcsrcc_sm8650_clk_ops,
+ .priv_auto = sizeof(struct msm_clk_priv),
+ .probe = tcsrcc_sm8650_clk_probe,
+ .flags = DM_FLAG_PRE_RELOC | DM_FLAG_DEFAULT_PD_CTRL_OFF,
+};