clk/qcom: move from mach-snapdragon
Clock drivers don't belong here, move them to the right place and
declutter mach-snapdragon a bit.
To de-couple these drivers from specific "target" platforms, add
additional config options to enable each clock driver gated behind a
common CLK_QCOM option and enable them by default for the respective
targets. This will make future work easier as we move towards a generic
Qualcomm target.
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
diff --git a/drivers/clk/qcom/clock-qcs404.c b/drivers/clk/qcom/clock-qcs404.c
new file mode 100644
index 0000000..80218af
--- /dev/null
+++ b/drivers/clk/qcom/clock-qcs404.c
@@ -0,0 +1,237 @@
+// 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-qcom.h"
+
+#include <dt-bindings/clock/qcom,gcc-qcs404.h>
+
+/* GPLL0 clock control registers */
+#define GPLL0_STATUS_ACTIVE BIT(31)
+
+#define CFG_CLK_SRC_GPLL1 BIT(8)
+#define GPLL1_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),
+};
+
+static struct pll_vote_clk gpll1_vote_clk = {
+ .status = GPLL1_STATUS,
+ .status_bit = GPLL1_STATUS_ACTIVE,
+ .ena_vote = APCS_GPLL_ENA_VOTE,
+ .vote_bit = BIT(1),
+};
+
+static const struct bcr_regs usb30_master_regs = {
+ .cfg_rcgr = USB30_MASTER_CFG_RCGR,
+ .cmd_rcgr = USB30_MASTER_CMD_RCGR,
+ .M = USB30_MASTER_M,
+ .N = USB30_MASTER_N,
+ .D = USB30_MASTER_D,
+};
+
+static const struct bcr_regs emac_regs = {
+ .cfg_rcgr = EMAC_CFG_RCGR,
+ .cmd_rcgr = EMAC_CMD_RCGR,
+ .M = EMAC_M,
+ .N = EMAC_N,
+ .D = EMAC_D,
+};
+
+static const struct bcr_regs emac_ptp_regs = {
+ .cfg_rcgr = EMAC_PTP_CFG_RCGR,
+ .cmd_rcgr = EMAC_PTP_CMD_RCGR,
+ .M = EMAC_M,
+ .N = EMAC_N,
+ .D = EMAC_D,
+};
+
+static const struct bcr_regs blsp1_qup0_i2c_apps_regs = {
+ .cmd_rcgr = BLSP1_QUP0_I2C_APPS_CMD_RCGR,
+ .cfg_rcgr = BLSP1_QUP0_I2C_APPS_CFG_RCGR,
+ /* mnd_width = 0 */
+};
+
+static const struct bcr_regs blsp1_qup1_i2c_apps_regs = {
+ .cmd_rcgr = BLSP1_QUP1_I2C_APPS_CMD_RCGR,
+ .cfg_rcgr = BLSP1_QUP1_I2C_APPS_CFG_RCGR,
+ /* mnd_width = 0 */
+};
+
+static const struct bcr_regs blsp1_qup2_i2c_apps_regs = {
+ .cmd_rcgr = BLSP1_QUP2_I2C_APPS_CMD_RCGR,
+ .cfg_rcgr = BLSP1_QUP2_I2C_APPS_CFG_RCGR,
+ /* mnd_width = 0 */
+};
+
+static const struct bcr_regs blsp1_qup3_i2c_apps_regs = {
+ .cmd_rcgr = BLSP1_QUP3_I2C_APPS_CMD_RCGR,
+ .cfg_rcgr = BLSP1_QUP3_I2C_APPS_CFG_RCGR,
+ /* mnd_width = 0 */
+};
+
+static const struct bcr_regs blsp1_qup4_i2c_apps_regs = {
+ .cmd_rcgr = BLSP1_QUP4_I2C_APPS_CMD_RCGR,
+ .cfg_rcgr = BLSP1_QUP4_I2C_APPS_CFG_RCGR,
+ /* mnd_width = 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;
+ case GCC_ETH_RGMII_CLK:
+ if (rate == 250000000)
+ clk_rcg_set_rate_mnd(priv->base, &emac_regs, 2, 0, 0,
+ CFG_CLK_SRC_GPLL1);
+ else if (rate == 125000000)
+ clk_rcg_set_rate_mnd(priv->base, &emac_regs, 4, 0, 0,
+ CFG_CLK_SRC_GPLL1);
+ else if (rate == 50000000)
+ clk_rcg_set_rate_mnd(priv->base, &emac_regs, 10, 0, 0,
+ CFG_CLK_SRC_GPLL1);
+ else if (rate == 5000000)
+ clk_rcg_set_rate_mnd(priv->base, &emac_regs, 2, 1, 50,
+ CFG_CLK_SRC_GPLL1);
+ break;
+ default:
+ return 0;
+ }
+
+ return 0;
+}
+
+int msm_enable(struct clk *clk)
+{
+ struct msm_clk_priv *priv = dev_get_priv(clk->dev);
+
+ switch (clk->id) {
+ case GCC_USB30_MASTER_CLK:
+ clk_enable_cbc(priv->base + USB30_MASTER_CBCR);
+ clk_rcg_set_rate_mnd(priv->base, &usb30_master_regs, 4, 0, 0,
+ CFG_CLK_SRC_GPLL0);
+ break;
+ case GCC_SYS_NOC_USB3_CLK:
+ clk_enable_cbc(priv->base + SYS_NOC_USB3_CBCR);
+ break;
+ case GCC_USB30_SLEEP_CLK:
+ clk_enable_cbc(priv->base + USB30_SLEEP_CBCR);
+ break;
+ case GCC_USB30_MOCK_UTMI_CLK:
+ clk_enable_cbc(priv->base + USB30_MOCK_UTMI_CBCR);
+ break;
+ case GCC_USB_HS_PHY_CFG_AHB_CLK:
+ clk_enable_cbc(priv->base + USB_HS_PHY_CFG_AHB_CBCR);
+ break;
+ case GCC_USB2A_PHY_SLEEP_CLK:
+ clk_enable_cbc(priv->base + USB_HS_PHY_CFG_AHB_CBCR);
+ break;
+ case GCC_ETH_PTP_CLK:
+ /* SPEED_1000: freq -> 250MHz */
+ clk_enable_cbc(priv->base + ETH_PTP_CBCR);
+ clk_enable_gpll0(priv->base, &gpll1_vote_clk);
+ clk_rcg_set_rate_mnd(priv->base, &emac_ptp_regs, 2, 0, 0,
+ CFG_CLK_SRC_GPLL1);
+ break;
+ case GCC_ETH_RGMII_CLK:
+ /* SPEED_1000: freq -> 250MHz */
+ clk_enable_cbc(priv->base + ETH_RGMII_CBCR);
+ clk_enable_gpll0(priv->base, &gpll1_vote_clk);
+ clk_rcg_set_rate_mnd(priv->base, &emac_regs, 2, 0, 0,
+ CFG_CLK_SRC_GPLL1);
+ break;
+ case GCC_ETH_SLAVE_AHB_CLK:
+ clk_enable_cbc(priv->base + ETH_SLAVE_AHB_CBCR);
+ break;
+ case GCC_ETH_AXI_CLK:
+ clk_enable_cbc(priv->base + ETH_AXI_CBCR);
+ break;
+ case GCC_BLSP1_AHB_CLK:
+ clk_enable_vote_clk(priv->base, &gcc_blsp1_ahb_clk);
+ break;
+ case GCC_BLSP1_QUP0_I2C_APPS_CLK:
+ clk_enable_cbc(priv->base + BLSP1_QUP0_I2C_APPS_CBCR);
+ clk_rcg_set_rate(priv->base, &blsp1_qup0_i2c_apps_regs, 0,
+ CFG_CLK_SRC_CXO);
+ break;
+ case GCC_BLSP1_QUP1_I2C_APPS_CLK:
+ clk_enable_cbc(priv->base + BLSP1_QUP1_I2C_APPS_CBCR);
+ clk_rcg_set_rate(priv->base, &blsp1_qup1_i2c_apps_regs, 0,
+ CFG_CLK_SRC_CXO);
+ break;
+ case GCC_BLSP1_QUP2_I2C_APPS_CLK:
+ clk_enable_cbc(priv->base + BLSP1_QUP2_I2C_APPS_CBCR);
+ clk_rcg_set_rate(priv->base, &blsp1_qup2_i2c_apps_regs, 0,
+ CFG_CLK_SRC_CXO);
+ break;
+ case GCC_BLSP1_QUP3_I2C_APPS_CLK:
+ clk_enable_cbc(priv->base + BLSP1_QUP3_I2C_APPS_CBCR);
+ clk_rcg_set_rate(priv->base, &blsp1_qup3_i2c_apps_regs, 0,
+ CFG_CLK_SRC_CXO);
+ break;
+ case GCC_BLSP1_QUP4_I2C_APPS_CLK:
+ clk_enable_cbc(priv->base + BLSP1_QUP4_I2C_APPS_CBCR);
+ clk_rcg_set_rate(priv->base, &blsp1_qup4_i2c_apps_regs, 0,
+ CFG_CLK_SRC_CXO);
+ break;
+ default:
+ return 0;
+ }
+
+ return 0;
+}