On 03/01/2025 06:14, Varadarajan Narayanan wrote:
Add initial set of clocks and resets for enabling U-Boot on QCS9100 based Ride platforms.
Signed-off-by: Varadarajan Narayanan quic_varada@quicinc.com
drivers/clk/qcom/Kconfig | 8 ++ drivers/clk/qcom/Makefile | 1 + drivers/clk/qcom/clock-sa8775p.c | 142 +++++++++++++++++++++++++++++++ 3 files changed, 151 insertions(+) create mode 100644 drivers/clk/qcom/clock-sa8775p.c
diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig index d76fca5dba..ad5797ab85 100644 --- a/drivers/clk/qcom/Kconfig +++ b/drivers/clk/qcom/Kconfig @@ -103,6 +103,14 @@ config CLK_QCOM_SC7280 on the Snapdragon SC7280 SoC. This driver supports the clocks and resets exposed by the GCC hardware block.
+config CLK_QCOM_SA8775P
bool "Qualcomm SA8775 GCC"select CLK_QCOMhelpSay Y here to enable support for the Global Clock Controlleron the Snapdragon SA8775 SoC. This driver supports the clocksand resets exposed by the GCC hardware block.endmenu
endif
diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile index ab33f1c5fa..01b541af32 100644 --- a/drivers/clk/qcom/Makefile +++ b/drivers/clk/qcom/Makefile @@ -15,3 +15,4 @@ obj-$(CONFIG_CLK_QCOM_SM8150) += clock-sm8150.o obj-$(CONFIG_CLK_QCOM_SM8250) += clock-sm8250.o obj-$(CONFIG_CLK_QCOM_SM8550) += clock-sm8550.o obj-$(CONFIG_CLK_QCOM_SM8650) += clock-sm8650.o +obj-$(CONFIG_CLK_QCOM_SA8775P) += clock-sa8775p.o diff --git a/drivers/clk/qcom/clock-sa8775p.c b/drivers/clk/qcom/clock-sa8775p.c new file mode 100644 index 0000000000..e31f24ed4f --- /dev/null +++ b/drivers/clk/qcom/clock-sa8775p.c @@ -0,0 +1,142 @@ +// SPDX-License-Identifier: GPL-2.0 +/*
- Clock drivers for Qualcomm sa8775p
- (C) Copyright 2024 Linaro Ltd.
- */
+#include <linux/types.h> +#include <clk-uclass.h> +#include <dm.h> +#include <linux/delay.h> +#include <asm/io.h> +#include <linux/bug.h> +#include <linux/bitops.h> +#include <dt-bindings/clock/qcom,sa8775p-gcc.h> +#include "clock-qcom.h"
+#define USB30_PRIM_MOCK_UTMI_CLK_CMD_RCGR 0xf038 +#define USB30_PRIM_MASTER_CLK_CMD_RCGR 0xf020
+static ulong sa8775p_set_rate(struct clk *clk, ulong rate) +{
- struct msm_clk_priv *priv = dev_get_priv(clk->dev);
- if (clk->id < priv->data->num_clks)
debug("%s: %s, requested rate=%ld\n", __func__,priv->data->clks[clk->id].name, rate);- switch (clk->id) {
- case GCC_USB30_PRIM_MOCK_UTMI_CLK:
WARN(rate != 19200000, "Unexpected rate for USB30_PRIM_MOCK_UTMI_CLK: %lu\n", rate);clk_rcg_set_rate(priv->base, USB30_PRIM_MOCK_UTMI_CLK_CMD_RCGR, 0, CFG_CLK_SRC_CXO);return rate;- case GCC_USB30_PRIM_MASTER_CLK:
WARN(rate != 200000000, "Unexpected rate for USB30_PRIM_MASTER_CLK: %lu\n", rate);clk_rcg_set_rate_mnd(priv->base, USB30_PRIM_MASTER_CLK_CMD_RCGR,1, 0, 0, CFG_CLK_SRC_GPLL0_ODD, 8);clk_rcg_set_rate(priv->base, 0xf064, 0, 0);return rate;- default:
return 0;- }
+}
+static const struct gate_clk sa8775p_clks[] = {
- GATE_CLK(GCC_CFG_NOC_USB3_PRIM_AXI_CLK, 0x1b088, 1),
- GATE_CLK(GCC_USB30_PRIM_MASTER_CLK, 0x1b018, 1),
- GATE_CLK(GCC_AGGRE_USB3_PRIM_AXI_CLK, 0x1b084, 1),
- GATE_CLK(GCC_USB30_PRIM_SLEEP_CLK, 0x1b020, 1),
- GATE_CLK(GCC_USB30_PRIM_MOCK_UTMI_CLK, 0x1b024, 1),
- GATE_CLK(GCC_USB3_PRIM_PHY_AUX_CLK, 0x1b05c, 1),
- GATE_CLK(GCC_USB3_PRIM_PHY_COM_AUX_CLK, 0x1b060, 1),
+};
+static int sa8775p_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 %ld: %s\n", __func__, clk->id, sa8775p_clks[clk->id].name);
- 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 sa8775p_gcc_resets[] = {
- [GCC_CAMERA_BCR] = { 0x32000 },
- [GCC_DISPLAY1_BCR] = { 0xC7000 },
- [GCC_DISPLAY_BCR] = { 0x33000 },
- [GCC_EMAC0_BCR] = { 0xB6000 },
- [GCC_EMAC1_BCR] = { 0xB4000 },
- [GCC_GPU_BCR] = { 0x7D000 },
- [GCC_MMSS_BCR] = { 0x17000 },
- [GCC_PCIE_0_BCR] = { 0xa9000 },
- [GCC_PCIE_0_LINK_DOWN_BCR] = { 0xBF000 },
- [GCC_PCIE_0_NOCSR_COM_PHY_BCR] = { 0xBF008 },
- [GCC_PCIE_0_PHY_BCR] = { 0xAD144 },
- [GCC_PCIE_0_PHY_NOCSR_COM_PHY_BCR] = { 0xBF00C },
- [GCC_PCIE_1_BCR] = { 0x77000 },
- [GCC_PCIE_1_LINK_DOWN_BCR] = { 0xAE084 },
- [GCC_PCIE_1_NOCSR_COM_PHY_BCR] = { 0xAE090 },
- [GCC_PCIE_1_PHY_BCR] = { 0xAE08C },
- [GCC_PCIE_1_PHY_NOCSR_COM_PHY_BCR] = { 0xAE094 },
- [GCC_PDM_BCR] = { 0x3F000 },
- [GCC_QUPV3_WRAPPER_0_BCR] = { 0x23000 },
- [GCC_QUPV3_WRAPPER_1_BCR] = { 0x24000 },
- [GCC_QUPV3_WRAPPER_2_BCR] = { 0x2A000 },
- [GCC_QUPV3_WRAPPER_3_BCR] = { 0xC4000 },
- [GCC_SDCC1_BCR] = { 0x20000 },
- [GCC_TSCSS_BCR] = { 0x21000 },
- [GCC_UFS_CARD_BCR] = { 0x81000 },
- [GCC_UFS_PHY_BCR] = { 0x83000 },
+};
+static const struct qcom_power_map sa8775p_gdscs[] = {
- [UFS_PHY_GDSC] = { 0x83004 },
- [USB30_PRIM_GDSC] = { 0x1B004 },
+};
+static struct msm_clk_data sa8775_gcc_data = {
- .resets = sa8775p_gcc_resets,
- .num_resets = ARRAY_SIZE(sa8775p_gcc_resets),
- .clks = sa8775p_clks,
- .num_clks = ARRAY_SIZE(sa8775p_clks),
- .power_domains = sa8775p_gdscs,
- .num_power_domains = ARRAY_SIZE(sa8775p_gdscs),
- .enable = sa8775p_enable,
- .set_rate = sa8775p_set_rate,
+};
+static const struct udevice_id gcc_sa8775p_of_match[] = {
- {
.compatible = "qcom,sa8775p-gcc",.data = (ulong)&sa8775_gcc_data,- },
- { }
+};
+U_BOOT_DRIVER(gcc_sa8775p) = {
- .name = "gcc_sa8775p",
- .id = UCLASS_NOP,
- .of_match = gcc_sa8775p_of_match,
- .bind = qcom_cc_bind,
- .flags = DM_FLAG_PRE_RELOC | DM_FLAG_DEFAULT_PD_CTRL_OFF,
+};
Reviewed-by: Neil Armstrong neil.armstrong@linaro.org