Add AST2700 clock controller driver and also use axiliary
device framework register the reset controller driver.
Due to clock and reset using the same register region.
Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com>
Reviewed-by: Brian Masney <bmasney@redhat.com>
---
drivers/clk/Kconfig | 8 +
drivers/clk/Makefile | 1 +
drivers/clk/clk-ast2700.c | 1055 +++++++++++++++++++++++++++++++++++++
3 files changed, 1064 insertions(+)
create mode 100644 drivers/clk/clk-ast2700.c
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 4d56475f94fc..b3a6eb374a53 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -296,6 +296,14 @@ config COMMON_CLK_ASPEED
The G4 and G5 series, including the ast2400 and ast2500, are supported
by this driver.
+config COMMON_CLK_AST2700
+ bool "Clock driver for AST2700 SoC"
+ depends on ARCH_ASPEED || COMPILE_TEST
+ help
+ This driver provides support for clock on AST2700 SoC.
+ The driver is responsible for managing the various clocks required
+ by the peripherals and cores within the AST2700.
+
config COMMON_CLK_S2MPS11
tristate "Clock driver for S2MPS1X/S5M8767 MFD"
depends on MFD_SEC_CORE || COMPILE_TEST
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 18ed29cfdc11..0c47294715d3 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -64,6 +64,7 @@ obj-$(CONFIG_COMMON_CLK_FSL_SAI) += clk-fsl-sai.o
obj-$(CONFIG_COMMON_CLK_GEMINI) += clk-gemini.o
obj-$(CONFIG_COMMON_CLK_ASPEED) += clk-aspeed.o
obj-$(CONFIG_MACH_ASPEED_G6) += clk-ast2600.o
+obj-$(CONFIG_COMMON_CLK_AST2700) += clk-ast2700.o
obj-$(CONFIG_ARCH_HIGHBANK) += clk-highbank.o
obj-$(CONFIG_CLK_HSDK) += clk-hsdk-pll.o
obj-$(CONFIG_COMMON_CLK_K210) += clk-k210.o
diff --git a/drivers/clk/clk-ast2700.c b/drivers/clk/clk-ast2700.c
new file mode 100644
index 000000000000..bbb2b571eb72
--- /dev/null
+++ b/drivers/clk/clk-ast2700.c
@@ -0,0 +1,1055 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2024 ASPEED Technology Inc.
+ * Author: Ryan Chen <ryan_chen@aspeedtech.com>
+ */
+#include <linux/auxiliary_bus.h>
+#include <linux/bitfield.h>
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/mod_devicetable.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/units.h>
+
+#include <dt-bindings/clock/aspeed,ast2700-scu.h>
+
+/* SOC0 */
+#define SCU0_HWSTRAP1 0x010
+#define SCU0_CLK_STOP 0x240
+#define SCU0_CLK_SEL1 0x280
+#define SCU0_CLK_SEL2 0x284
+#define GET_USB_REFCLK_DIV(x) ((GENMASK(23, 20) & (x)) >> 20)
+#define UART_DIV13_EN BIT(30)
+#define SCU0_HPLL_PARAM 0x300
+#define SCU0_DPLL_PARAM 0x308
+#define SCU0_MPLL_PARAM 0x310
+#define SCU0_D0CLK_PARAM 0x320
+#define SCU0_D1CLK_PARAM 0x330
+#define SCU0_CRT0CLK_PARAM 0x340
+#define SCU0_CRT1CLK_PARAM 0x350
+#define SCU0_MPHYCLK_PARAM 0x360
+
+/* SOC1 */
+#define SCU1_REVISION_ID 0x0
+#define REVISION_ID GENMASK(23, 16)
+#define SCU1_CLK_STOP 0x240
+#define SCU1_CLK_STOP2 0x260
+#define SCU1_CLK_SEL1 0x280
+#define SCU1_CLK_SEL2 0x284
+#define SCU1_CLK_I3C_DIV_MASK GENMASK(25, 23)
+#define SCU1_CLK_I3C_DIV(n) ((n) - 1)
+#define UXCLK_MASK GENMASK(1, 0)
+#define HUXCLK_MASK GENMASK(4, 3)
+#define SCU1_HPLL_PARAM 0x300
+#define SCU1_APLL_PARAM 0x310
+#define SCU1_DPLL_PARAM 0x320
+#define SCU1_UXCLK_CTRL 0x330
+#define SCU1_HUXCLK_CTRL 0x334
+#define SCU1_MAC12_CLK_DLY 0x390
+#define SCU1_MAC12_CLK_DLY_100M 0x394
+#define SCU1_MAC12_CLK_DLY_10M 0x398
+
+enum ast2700_clk_type {
+ CLK_MUX,
+ CLK_PLL,
+ CLK_HPLL,
+ CLK_GATE,
+ CLK_MISC,
+ CLK_FIXED,
+ CLK_DIVIDER,
+ CLK_UART_PLL,
+ CLK_GATE_ASPEED,
+ CLK_FIXED_FACTOR,
+ CLK_FIXED_DISPLAY,
+};
+
+struct ast2700_clk_fixed_factor_data {
+ unsigned int mult;
+ unsigned int div;
+ int parent_id;
+};
+
+struct ast2700_clk_gate_data {
+ int parent_id;
+ u32 flags;
+ u32 reg;
+ u8 bit;
+};
+
+struct ast2700_clk_mux_data {
+ const struct clk_hw **parent_hws;
+ const unsigned int *parent_ids;
+ unsigned int num_parents;
+ u8 bit_shift;
+ u8 bit_width;
+ u32 reg;
+};
+
+struct ast2700_clk_div_data {
+ const struct clk_div_table *div_table;
+ unsigned int parent_id;
+ u8 bit_shift;
+ u8 bit_width;
+ u32 reg;
+};
+
+struct ast2700_clk_pll_data {
+ unsigned int parent_id;
+ u32 reg;
+};
+
+struct ast2700_clk_fixed_rate_data {
+ unsigned long fixed_rate;
+};
+
+struct ast2700_clk_display_fixed_data {
+ u32 reg;
+};
+
+struct ast2700_clk_info {
+ const char *name;
+ u32 id;
+ u32 reg;
+ u32 type;
+ union {
+ struct ast2700_clk_fixed_factor_data factor;
+ struct ast2700_clk_fixed_rate_data rate;
+ struct ast2700_clk_display_fixed_data display_rate;
+ struct ast2700_clk_gate_data gate;
+ struct ast2700_clk_div_data div;
+ struct ast2700_clk_pll_data pll;
+ struct ast2700_clk_mux_data mux;
+ } data;
+};
+
+struct ast2700_clk_data {
+ const struct ast2700_clk_info *clk_info;
+ unsigned int nr_clks;
+ const int scu;
+};
+
+struct ast2700_clk_ctrl {
+ const struct ast2700_clk_data *clk_data;
+ struct device *dev;
+ void __iomem *base;
+ spinlock_t lock; /* clk lock */
+};
+
+static const struct clk_div_table ast2700_rgmii_div_table[] = {
+ { 0x0, 4 },
+ { 0x1, 4 },
+ { 0x2, 6 },
+ { 0x3, 8 },
+ { 0x4, 10 },
+ { 0x5, 12 },
+ { 0x6, 14 },
+ { 0x7, 16 },
+ { 0 }
+};
+
+static const struct clk_div_table ast2700_rmii_div_table[] = {
+ { 0x0, 8 },
+ { 0x1, 8 },
+ { 0x2, 12 },
+ { 0x3, 16 },
+ { 0x4, 20 },
+ { 0x5, 24 },
+ { 0x6, 28 },
+ { 0x7, 32 },
+ { 0 }
+};
+
+static const struct clk_div_table ast2700_clk_div_table[] = {
+ { 0x0, 2 },
+ { 0x1, 2 },
+ { 0x2, 3 },
+ { 0x3, 4 },
+ { 0x4, 5 },
+ { 0x5, 6 },
+ { 0x6, 7 },
+ { 0x7, 8 },
+ { 0 }
+};
+
+static const struct clk_div_table ast2700_clk_div_table2[] = {
+ { 0x0, 2 },
+ { 0x1, 4 },
+ { 0x2, 6 },
+ { 0x3, 8 },
+ { 0x4, 10 },
+ { 0x5, 12 },
+ { 0x6, 14 },
+ { 0x7, 16 },
+ { 0 }
+};
+
+static const struct clk_div_table ast2700_hclk_div_table[] = {
+ { 0x0, 6 },
+ { 0x1, 5 },
+ { 0x2, 4 },
+ { 0x3, 7 },
+ { 0 }
+};
+
+static const struct clk_div_table ast2700_clk_uart_div_table[] = {
+ { 0x0, 1 },
+ { 0x1, 13 },
+ { 0 }
+};
+
+/* soc 0 */
+static const unsigned int psp_parent_ids[] = {
+ SCU0_CLK_MPLL,
+ SCU0_CLK_HPLL,
+ SCU0_CLK_HPLL,
+ SCU0_CLK_HPLL,
+ SCU0_CLK_MPLL_DIV2,
+ SCU0_CLK_HPLL_DIV2,
+ SCU0_CLK_HPLL,
+ SCU0_CLK_HPLL
+};
+
+static const struct clk_hw *psp_parent_hws[ARRAY_SIZE(psp_parent_ids)];
+
+static const unsigned int hclk_parent_ids[] = {
+ SCU0_CLK_HPLL,
+ SCU0_CLK_MPLL
+};
+
+static const struct clk_hw *hclk_parent_hws[ARRAY_SIZE(hclk_parent_ids)];
+
+static const unsigned int emmc_parent_ids[] = {
+ SCU0_CLK_MPLL_DIV4,
+ SCU0_CLK_HPLL_DIV4
+};
+
+static const struct clk_hw *emmc_parent_hws[ARRAY_SIZE(emmc_parent_ids)];
+
+static const unsigned int mphy_parent_ids[] = {
+ SCU0_CLK_MPLL,
+ SCU0_CLK_HPLL,
+ SCU0_CLK_DPLL,
+ SCU0_CLK_192M
+};
+
+static const struct clk_hw *mphy_parent_hws[ARRAY_SIZE(mphy_parent_ids)];
+
+static const unsigned int u2phy_parent_ids[] = {
+ SCU0_CLK_MPLL,
+ SCU0_CLK_HPLL
+};
+
+static const struct clk_hw *u2phy_parent_hws[ARRAY_SIZE(u2phy_parent_ids)];
+
+static const unsigned int uart_parent_ids[] = {
+ SCU0_CLK_24M,
+ SCU0_CLK_192M
+};
+
+static const struct clk_hw *uart_parent_hws[ARRAY_SIZE(uart_parent_ids)];
+
+/* soc 1 */
+static const unsigned int uartx_parent_ids[] = {
+ SCU1_CLK_UARTX,
+ SCU1_CLK_HUARTX
+};
+
+static const struct clk_hw *uartx_parent_hws[ARRAY_SIZE(uartx_parent_ids)];
+
+static const unsigned int uxclk_parent_ids[] = {
+ SCU1_CLK_APLL_DIV4,
+ SCU1_CLK_APLL_DIV2,
+ SCU1_CLK_APLL,
+ SCU1_CLK_HPLL
+};
+
+static const struct clk_hw *uxclk_parent_hws[ARRAY_SIZE(uxclk_parent_ids)];
+
+static const unsigned int sdclk_parent_ids[] = {
+ SCU1_CLK_HPLL,
+ SCU1_CLK_APLL
+};
+
+static const struct clk_hw *sdclk_parent_hws[ARRAY_SIZE(sdclk_parent_ids)];
+
+#define FIXED_CLK(_id, _name, _rate) \
+ { \
+ .id = _id, \
+ .type = CLK_FIXED, \
+ .name = _name, \
+ .data = { .rate = { .fixed_rate = _rate, } }, \
+ }
+
+#define FIXED_DISPLAY_CLK(_id, _name, _reg) \
+ { \
+ .id = _id, \
+ .type = CLK_FIXED_DISPLAY, \
+ .name = _name, \
+ .data = { .display_rate = { .reg = _reg } }, \
+ }
+
+#define PLL_CLK(_id, _type, _name, _parent_id, _reg) \
+ { \
+ .id = _id, \
+ .type = _type, \
+ .name = _name, \
+ .data = { .pll = { \
+ .parent_id = _parent_id, \
+ .reg = _reg, \
+ } }, \
+ }
+
+#define MUX_CLK(_id, _name, _parent_ids, _num_parents, _parent_hws, _reg, _shift, _width) \
+ { \
+ .id = _id, \
+ .type = CLK_MUX, \
+ .name = _name, \
+ .data = { \
+ .mux = { \
+ .parent_ids = _parent_ids, \
+ .parent_hws = _parent_hws, \
+ .num_parents = _num_parents, \
+ .reg = (_reg), \
+ .bit_shift = _shift, \
+ .bit_width = _width, \
+ }, \
+ }, \
+ }
+
+#define DIVIDER_CLK(_id, _name, _parent_id, _reg, _shift, _width, _div_table) \
+ { \
+ .id = _id, \
+ .type = CLK_DIVIDER, \
+ .name = _name, \
+ .data = { \
+ .div = { \
+ .parent_id = _parent_id, \
+ .reg = _reg, \
+ .bit_shift = _shift, \
+ .bit_width = _width, \
+ .div_table = _div_table, \
+ }, \
+ }, \
+ }
+
+#define FIXED_FACTOR_CLK(_id, _name, _parent_id, _mult, _div) \
+ { \
+ .id = _id, \
+ .type = CLK_FIXED_FACTOR, \
+ .name = _name, \
+ .data = { .factor = { .parent_id = _parent_id, .mult = _mult, .div = _div, } }, \
+ }
+
+#define GATE_CLK(_id, _type, _name, _parent_id, _reg, _bit, _flags) \
+ { \
+ .id = _id, \
+ .type = _type, \
+ .name = _name, \
+ .data = { \
+ .gate = { \
+ .parent_id = _parent_id, \
+ .reg = _reg, \
+ .bit = _bit, \
+ .flags = _flags, \
+ }, \
+ }, \
+ }
+
+static const struct ast2700_clk_info ast2700_scu0_clk_info[] __initconst = {
+ FIXED_CLK(SCU0_CLKIN, "soc0-clkin", 25 * HZ_PER_MHZ),
+ FIXED_CLK(SCU0_CLK_24M, "soc0-clk24Mhz", 24 * HZ_PER_MHZ),
+ FIXED_CLK(SCU0_CLK_192M, "soc0-clk192Mhz", 192 * HZ_PER_MHZ),
+ FIXED_CLK(SCU0_CLK_U2PHY_CLK12M, "u2phy_clk12m", 12 * HZ_PER_MHZ),
+ FIXED_DISPLAY_CLK(SCU0_CLK_D0, "d0clk", SCU0_D0CLK_PARAM),
+ FIXED_DISPLAY_CLK(SCU0_CLK_D1, "d1clk", SCU0_D1CLK_PARAM),
+ FIXED_DISPLAY_CLK(SCU0_CLK_CRT0, "crt0clk", SCU0_CRT0CLK_PARAM),
+ FIXED_DISPLAY_CLK(SCU0_CLK_CRT1, "crt1clk", SCU0_CRT1CLK_PARAM),
+ PLL_CLK(SCU0_CLK_HPLL, CLK_HPLL, "soc0-hpll", SCU0_CLKIN, SCU0_HPLL_PARAM),
+ PLL_CLK(SCU0_CLK_DPLL, CLK_PLL, "soc0-dpll", SCU0_CLKIN, SCU0_DPLL_PARAM),
+ PLL_CLK(SCU0_CLK_MPLL, CLK_PLL, "soc0-mpll", SCU0_CLKIN, SCU0_MPLL_PARAM),
+ FIXED_FACTOR_CLK(SCU0_CLK_HPLL_DIV2, "soc0-hpll_div2", SCU0_CLK_HPLL, 1, 2),
+ FIXED_FACTOR_CLK(SCU0_CLK_HPLL_DIV4, "soc0-hpll_div4", SCU0_CLK_HPLL, 1, 4),
+ FIXED_FACTOR_CLK(SCU0_CLK_MPLL_DIV2, "soc0-mpll_div2", SCU0_CLK_MPLL, 1, 2),
+ FIXED_FACTOR_CLK(SCU0_CLK_MPLL_DIV4, "soc0-mpll_div4", SCU0_CLK_MPLL, 1, 4),
+ FIXED_FACTOR_CLK(SCU0_CLK_MPLL_DIV8, "soc0-mpll_div8", SCU0_CLK_MPLL, 1, 8),
+ FIXED_FACTOR_CLK(SCU0_CLK_AXI1, "axi1clk", SCU0_CLK_MPLL, 1, 4),
+ MUX_CLK(SCU0_CLK_PSP, "pspclk", psp_parent_ids, ARRAY_SIZE(psp_parent_ids),
+ psp_parent_hws, SCU0_HWSTRAP1, 2, 3),
+ FIXED_FACTOR_CLK(SCU0_CLK_AXI0, "axi0clk", SCU0_CLK_PSP, 1, 2),
+ MUX_CLK(SCU0_CLK_AHBMUX, "soc0-ahbmux", hclk_parent_ids, ARRAY_SIZE(hclk_parent_ids),
+ hclk_parent_hws, SCU0_HWSTRAP1, 7, 1),
+ MUX_CLK(SCU0_CLK_EMMCMUX, "emmcsrc-mux", emmc_parent_ids, ARRAY_SIZE(emmc_parent_ids),
+ emmc_parent_hws, SCU0_CLK_SEL1, 11, 1),
+ MUX_CLK(SCU0_CLK_MPHYSRC, "mphysrc", mphy_parent_ids, ARRAY_SIZE(mphy_parent_ids),
+ mphy_parent_hws, SCU0_CLK_SEL2, 18, 2),
+ MUX_CLK(SCU0_CLK_U2PHY_REFCLKSRC, "u2phy_refclksrc", u2phy_parent_ids,
+ ARRAY_SIZE(u2phy_parent_ids), u2phy_parent_hws, SCU0_CLK_SEL2, 23, 1),
+ MUX_CLK(SCU0_CLK_UART, "soc0-uartclk", uart_parent_ids, ARRAY_SIZE(uart_parent_ids),
+ uart_parent_hws, SCU0_CLK_SEL2, 14, 1),
+ PLL_CLK(SCU0_CLK_MPHY, CLK_MISC, "mphyclk", SCU0_CLK_MPHYSRC, SCU0_MPHYCLK_PARAM),
+ PLL_CLK(SCU0_CLK_U2PHY_REFCLK, CLK_MISC, "u2phy_refclk", SCU0_CLK_U2PHY_REFCLKSRC,
+ SCU0_CLK_SEL2),
+ DIVIDER_CLK(SCU0_CLK_AHB, "soc0-ahb", SCU0_CLK_AHBMUX,
+ SCU0_HWSTRAP1, 5, 2, ast2700_hclk_div_table),
+ DIVIDER_CLK(SCU0_CLK_EMMC, "emmcclk", SCU0_CLK_EMMCMUX,
+ SCU0_CLK_SEL1, 12, 3, ast2700_clk_div_table2),
+ DIVIDER_CLK(SCU0_CLK_APB, "soc0-apb", SCU0_CLK_AXI0,
+ SCU0_CLK_SEL1, 23, 3, ast2700_clk_div_table2),
+ DIVIDER_CLK(SCU0_CLK_HPLL_DIV_AHB, "soc0-hpll-ahb", SCU0_CLK_HPLL,
+ SCU0_HWSTRAP1, 5, 2, ast2700_hclk_div_table),
+ DIVIDER_CLK(SCU0_CLK_MPLL_DIV_AHB, "soc0-mpll-ahb", SCU0_CLK_MPLL,
+ SCU0_HWSTRAP1, 5, 2, ast2700_hclk_div_table),
+ DIVIDER_CLK(SCU0_CLK_UART4, "uart4clk", SCU0_CLK_UART,
+ SCU0_CLK_SEL2, 30, 1, ast2700_clk_uart_div_table),
+ GATE_CLK(SCU0_CLK_GATE_MCLK, CLK_GATE_ASPEED, "mclk-gate", SCU0_CLK_MPLL,
+ SCU0_CLK_STOP, 0, CLK_IS_CRITICAL),
+ GATE_CLK(SCU0_CLK_GATE_ECLK, CLK_GATE_ASPEED, "eclk-gate", -1, SCU0_CLK_STOP, 1, 0),
+ GATE_CLK(SCU0_CLK_GATE_2DCLK, CLK_GATE_ASPEED, "gclk-gate", -1, SCU0_CLK_STOP, 2, 0),
+ GATE_CLK(SCU0_CLK_GATE_VCLK, CLK_GATE_ASPEED, "vclk-gate", -1, SCU0_CLK_STOP, 3, 0),
+ GATE_CLK(SCU0_CLK_GATE_BCLK, CLK_GATE_ASPEED, "bclk-gate", -1,
+ SCU0_CLK_STOP, 4, CLK_IS_CRITICAL),
+ GATE_CLK(SCU0_CLK_GATE_VGA0CLK, CLK_GATE_ASPEED, "vga0clk-gate", -1,
+ SCU0_CLK_STOP, 5, CLK_IS_CRITICAL),
+ GATE_CLK(SCU0_CLK_GATE_REFCLK, CLK_GATE_ASPEED, "soc0-refclk-gate", SCU0_CLKIN,
+ SCU0_CLK_STOP, 6, CLK_IS_CRITICAL),
+ GATE_CLK(SCU0_CLK_GATE_PORTBUSB2CLK, CLK_GATE_ASPEED, "portb-usb2clk-gate", -1,
+ SCU0_CLK_STOP, 7, 0),
+ GATE_CLK(SCU0_CLK_GATE_UHCICLK, CLK_GATE_ASPEED, "uhciclk-gate", -1, SCU0_CLK_STOP, 9, 0),
+ GATE_CLK(SCU0_CLK_GATE_VGA1CLK, CLK_GATE_ASPEED, "vga1clk-gate", -1,
+ SCU0_CLK_STOP, 10, CLK_IS_CRITICAL),
+ GATE_CLK(SCU0_CLK_GATE_DDRPHYCLK, CLK_GATE_ASPEED, "ddrphy-gate", -1,
+ SCU0_CLK_STOP, 11, CLK_IS_CRITICAL),
+ GATE_CLK(SCU0_CLK_GATE_E2M0CLK, CLK_GATE_ASPEED, "e2m0clk-gate", -1,
+ SCU0_CLK_STOP, 12, CLK_IS_CRITICAL),
+ GATE_CLK(SCU0_CLK_GATE_HACCLK, CLK_GATE_ASPEED, "hacclk-gate", -1, SCU0_CLK_STOP, 13, 0),
+ GATE_CLK(SCU0_CLK_GATE_PORTAUSB2CLK, CLK_GATE_ASPEED, "porta-usb2clk-gate", -1,
+ SCU0_CLK_STOP, 14, 0),
+ GATE_CLK(SCU0_CLK_GATE_UART4CLK, CLK_GATE_ASPEED, "uart4clk-gate", SCU0_CLK_UART4,
+ SCU0_CLK_STOP, 15, CLK_IS_CRITICAL),
+ GATE_CLK(SCU0_CLK_GATE_SLICLK, CLK_GATE_ASPEED, "soc0-sliclk-gate", -1,
+ SCU0_CLK_STOP, 16, CLK_IS_CRITICAL),
+ GATE_CLK(SCU0_CLK_GATE_DACCLK, CLK_GATE_ASPEED, "dacclk-gate", -1,
+ SCU0_CLK_STOP, 17, CLK_IS_CRITICAL),
+ GATE_CLK(SCU0_CLK_GATE_DP, CLK_GATE_ASPEED, "dpclk-gate", -1,
+ SCU0_CLK_STOP, 18, CLK_IS_CRITICAL),
+ GATE_CLK(SCU0_CLK_GATE_E2M1CLK, CLK_GATE_ASPEED, "e2m1clk-gate", -1,
+ SCU0_CLK_STOP, 19, CLK_IS_CRITICAL),
+ GATE_CLK(SCU0_CLK_GATE_CRT0CLK, CLK_GATE_ASPEED, "crt0clk-gate", -1,
+ SCU0_CLK_STOP, 20, 0),
+ GATE_CLK(SCU0_CLK_GATE_CRT1CLK, CLK_GATE_ASPEED, "crt1clk-gate", -1,
+ SCU0_CLK_STOP, 21, 0),
+ GATE_CLK(SCU0_CLK_GATE_ECDSACLK, CLK_GATE_ASPEED, "eccclk-gate", -1,
+ SCU0_CLK_STOP, 23, 0),
+ GATE_CLK(SCU0_CLK_GATE_RSACLK, CLK_GATE_ASPEED, "rsaclk-gate", -1,
+ SCU0_CLK_STOP, 24, 0),
+ GATE_CLK(SCU0_CLK_GATE_RVAS0CLK, CLK_GATE_ASPEED, "rvas0clk-gate", -1,
+ SCU0_CLK_STOP, 25, 0),
+ GATE_CLK(SCU0_CLK_GATE_UFSCLK, CLK_GATE_ASPEED, "ufsclk-gate", -1,
+ SCU0_CLK_STOP, 26, 0),
+ GATE_CLK(SCU0_CLK_GATE_EMMCCLK, CLK_GATE_ASPEED, "emmcclk-gate", SCU0_CLK_EMMC,
+ SCU0_CLK_STOP, 27, 0),
+ GATE_CLK(SCU0_CLK_GATE_RVAS1CLK, CLK_GATE_ASPEED, "rvas1clk-gate", -1,
+ SCU0_CLK_STOP, 28, 0),
+};
+
+static const struct ast2700_clk_info ast2700_scu1_clk_info[] __initconst = {
+ FIXED_CLK(SCU1_CLKIN, "soc1-clkin", 25 * HZ_PER_MHZ),
+ PLL_CLK(SCU1_CLK_HPLL, CLK_PLL, "soc1-hpll", SCU1_CLKIN, SCU1_HPLL_PARAM),
+ PLL_CLK(SCU1_CLK_APLL, CLK_PLL, "soc1-apll", SCU1_CLKIN, SCU1_APLL_PARAM),
+ PLL_CLK(SCU1_CLK_DPLL, CLK_PLL, "soc1-dpll", SCU1_CLKIN, SCU1_DPLL_PARAM),
+ FIXED_FACTOR_CLK(SCU1_CLK_APLL_DIV2, "soc1-apll_div2", SCU1_CLK_APLL, 1, 2),
+ FIXED_FACTOR_CLK(SCU1_CLK_APLL_DIV4, "soc1-apll_div4", SCU1_CLK_APLL, 1, 4),
+ FIXED_FACTOR_CLK(SCU1_CLK_CAN, "canclk", SCU1_CLK_APLL, 1, 10),
+ DIVIDER_CLK(SCU1_CLK_APB, "soc1-apb", SCU1_CLK_HPLL,
+ SCU1_CLK_SEL1, 18, 3, ast2700_clk_div_table2),
+ DIVIDER_CLK(SCU1_CLK_RMII, "rmii", SCU1_CLK_HPLL,
+ SCU1_CLK_SEL1, 21, 3, ast2700_rmii_div_table),
+ DIVIDER_CLK(SCU1_CLK_RGMII, "rgmii", SCU1_CLK_HPLL,
+ SCU1_CLK_SEL1, 25, 3, ast2700_rgmii_div_table),
+ DIVIDER_CLK(SCU1_CLK_MACHCLK, "machclk", SCU1_CLK_HPLL,
+ SCU1_CLK_SEL1, 29, 3, ast2700_clk_div_table),
+ DIVIDER_CLK(SCU1_CLK_APLL_DIVN, "soc1-apll_divn",
+ SCU1_CLK_APLL, SCU1_CLK_SEL2, 8, 3, ast2700_clk_div_table),
+ DIVIDER_CLK(SCU1_CLK_AHB, "soc1-ahb", SCU1_CLK_HPLL,
+ SCU1_CLK_SEL2, 20, 3, ast2700_clk_div_table),
+ DIVIDER_CLK(SCU1_CLK_I3C, "soc1-i3c", SCU1_CLK_HPLL,
+ SCU1_CLK_SEL2, 23, 3, ast2700_clk_div_table),
+ MUX_CLK(SCU1_CLK_SDMUX, "sdclk-mux", sdclk_parent_ids, ARRAY_SIZE(sdclk_parent_ids),
+ sdclk_parent_hws, SCU1_CLK_SEL1, 13, 1),
+ MUX_CLK(SCU1_CLK_UXCLK, "uxclk", uxclk_parent_ids, ARRAY_SIZE(uxclk_parent_ids),
+ uxclk_parent_hws, SCU1_CLK_SEL2, 0, 2),
+ MUX_CLK(SCU1_CLK_HUXCLK, "huxclk", uxclk_parent_ids, ARRAY_SIZE(uxclk_parent_ids),
+ uxclk_parent_hws, SCU1_CLK_SEL2, 3, 2),
+ DIVIDER_CLK(SCU1_CLK_SDCLK, "sdclk", SCU1_CLK_SDMUX,
+ SCU1_CLK_SEL1, 14, 3, ast2700_clk_div_table),
+ PLL_CLK(SCU1_CLK_UARTX, CLK_UART_PLL, "uartxclk", SCU1_CLK_UXCLK, SCU1_UXCLK_CTRL),
+ PLL_CLK(SCU1_CLK_HUARTX, CLK_UART_PLL, "huartxclk", SCU1_CLK_HUXCLK, SCU1_HUXCLK_CTRL),
+ MUX_CLK(SCU1_CLK_UART0, "uart0clk", uartx_parent_ids, ARRAY_SIZE(uartx_parent_ids),
+ uartx_parent_hws, SCU1_CLK_SEL1, 0, 1),
+ MUX_CLK(SCU1_CLK_UART1, "uart1clk", uartx_parent_ids, ARRAY_SIZE(uartx_parent_ids),
+ uartx_parent_hws, SCU1_CLK_SEL1, 1, 1),
+ MUX_CLK(SCU1_CLK_UART2, "uart2clk", uartx_parent_ids, ARRAY_SIZE(uartx_parent_ids),
+ uartx_parent_hws, SCU1_CLK_SEL1, 2, 1),
+ MUX_CLK(SCU1_CLK_UART3, "uart3clk", uartx_parent_ids, ARRAY_SIZE(uartx_parent_ids),
+ uartx_parent_hws, SCU1_CLK_SEL1, 3, 1),
+ MUX_CLK(SCU1_CLK_UART5, "uart5clk", uartx_parent_ids, ARRAY_SIZE(uartx_parent_ids),
+ uartx_parent_hws, SCU1_CLK_SEL1, 5, 1),
+ MUX_CLK(SCU1_CLK_UART6, "uart6clk", uartx_parent_ids, ARRAY_SIZE(uartx_parent_ids),
+ uartx_parent_hws, SCU1_CLK_SEL1, 6, 1),
+ MUX_CLK(SCU1_CLK_UART7, "uart7clk", uartx_parent_ids, ARRAY_SIZE(uartx_parent_ids),
+ uartx_parent_hws, SCU1_CLK_SEL1, 7, 1),
+ MUX_CLK(SCU1_CLK_UART8, "uart8clk", uartx_parent_ids, ARRAY_SIZE(uartx_parent_ids),
+ uartx_parent_hws, SCU1_CLK_SEL1, 8, 1),
+ MUX_CLK(SCU1_CLK_UART9, "uart9clk", uartx_parent_ids, ARRAY_SIZE(uartx_parent_ids),
+ uartx_parent_hws, SCU1_CLK_SEL1, 9, 1),
+ MUX_CLK(SCU1_CLK_UART10, "uart10clk", uartx_parent_ids, ARRAY_SIZE(uartx_parent_ids),
+ uartx_parent_hws, SCU1_CLK_SEL1, 10, 1),
+ MUX_CLK(SCU1_CLK_UART11, "uart11clk", uartx_parent_ids, ARRAY_SIZE(uartx_parent_ids),
+ uartx_parent_hws, SCU1_CLK_SEL1, 11, 1),
+ MUX_CLK(SCU1_CLK_UART12, "uart12clk", uartx_parent_ids, ARRAY_SIZE(uartx_parent_ids),
+ uartx_parent_hws, SCU1_CLK_SEL1, 12, 1),
+ FIXED_FACTOR_CLK(SCU1_CLK_UART13, "uart13clk", SCU1_CLK_HUARTX, 1, 1),
+ FIXED_FACTOR_CLK(SCU1_CLK_UART14, "uart14clk", SCU1_CLK_HUARTX, 1, 1),
+ GATE_CLK(SCU1_CLK_MAC0RCLK, CLK_GATE, "mac0rclk-gate", SCU1_CLK_RMII,
+ SCU1_MAC12_CLK_DLY, 29, 0),
+ GATE_CLK(SCU1_CLK_MAC1RCLK, CLK_GATE, "mac1rclk-gate", SCU1_CLK_RMII,
+ SCU1_MAC12_CLK_DLY, 30, 0),
+ GATE_CLK(SCU1_CLK_GATE_LCLK0, CLK_GATE_ASPEED, "lclk0-gate", -1,
+ SCU1_CLK_STOP, 0, CLK_IS_CRITICAL),
+ GATE_CLK(SCU1_CLK_GATE_LCLK1, CLK_GATE_ASPEED, "lclk1-gate", -1,
+ SCU1_CLK_STOP, 1, CLK_IS_CRITICAL),
+ GATE_CLK(SCU1_CLK_GATE_ESPI0CLK, CLK_GATE_ASPEED, "espi0clk-gate", -1,
+ SCU1_CLK_STOP, 2, CLK_IS_CRITICAL),
+ GATE_CLK(SCU1_CLK_GATE_ESPI1CLK, CLK_GATE_ASPEED, "espi1clk-gate", -1,
+ SCU1_CLK_STOP, 3, CLK_IS_CRITICAL),
+ GATE_CLK(SCU1_CLK_GATE_SDCLK, CLK_GATE_ASPEED, "sdclk-gate", SCU1_CLK_SDCLK,
+ SCU1_CLK_STOP, 4, CLK_IS_CRITICAL),
+ GATE_CLK(SCU1_CLK_GATE_IPEREFCLK, CLK_GATE_ASPEED, "soc1-iperefclk-gate", -1,
+ SCU1_CLK_STOP, 5, CLK_IS_CRITICAL),
+ GATE_CLK(SCU1_CLK_GATE_REFCLK, CLK_GATE_ASPEED, "soc1-refclk-gate", -1,
+ SCU1_CLK_STOP, 6, CLK_IS_CRITICAL),
+ GATE_CLK(SCU1_CLK_GATE_LPCHCLK, CLK_GATE_ASPEED, "lpchclk-gate", -1,
+ SCU1_CLK_STOP, 7, CLK_IS_CRITICAL),
+ GATE_CLK(SCU1_CLK_GATE_MAC0CLK, CLK_GATE_ASPEED, "mac0clk-gate", -1,
+ SCU1_CLK_STOP, 8, 0),
+ GATE_CLK(SCU1_CLK_GATE_MAC1CLK, CLK_GATE_ASPEED, "mac1clk-gate", -1,
+ SCU1_CLK_STOP, 9, 0),
+ GATE_CLK(SCU1_CLK_GATE_MAC2CLK, CLK_GATE_ASPEED, "mac2clk-gate", -1,
+ SCU1_CLK_STOP, 10, 0),
+ GATE_CLK(SCU1_CLK_GATE_UART0CLK, CLK_GATE_ASPEED, "uart0clk-gate", SCU1_CLK_UART0,
+ SCU1_CLK_STOP, 11, CLK_IS_CRITICAL),
+ GATE_CLK(SCU1_CLK_GATE_UART1CLK, CLK_GATE_ASPEED, "uart1clk-gate", SCU1_CLK_UART1,
+ SCU1_CLK_STOP, 12, CLK_IS_CRITICAL),
+ GATE_CLK(SCU1_CLK_GATE_UART2CLK, CLK_GATE_ASPEED, "uart2clk-gate", SCU1_CLK_UART2,
+ SCU1_CLK_STOP, 13, CLK_IS_CRITICAL),
+ GATE_CLK(SCU1_CLK_GATE_UART3CLK, CLK_GATE_ASPEED, "uart3clk-gate", SCU1_CLK_UART3,
+ SCU1_CLK_STOP, 14, CLK_IS_CRITICAL),
+ GATE_CLK(SCU1_CLK_GATE_I2CCLK, CLK_GATE_ASPEED, "i2cclk-gate", -1, SCU1_CLK_STOP, 15, 0),
+ GATE_CLK(SCU1_CLK_GATE_I3C0CLK, CLK_GATE_ASPEED, "i3c0clk-gate", SCU1_CLK_I3C,
+ SCU1_CLK_STOP, 16, 0),
+ GATE_CLK(SCU1_CLK_GATE_I3C1CLK, CLK_GATE_ASPEED, "i3c1clk-gate", SCU1_CLK_I3C,
+ SCU1_CLK_STOP, 17, 0),
+ GATE_CLK(SCU1_CLK_GATE_I3C2CLK, CLK_GATE_ASPEED, "i3c2clk-gate", SCU1_CLK_I3C,
+ SCU1_CLK_STOP, 18, 0),
+ GATE_CLK(SCU1_CLK_GATE_I3C3CLK, CLK_GATE_ASPEED, "i3c3clk-gate", SCU1_CLK_I3C,
+ SCU1_CLK_STOP, 19, 0),
+ GATE_CLK(SCU1_CLK_GATE_I3C4CLK, CLK_GATE_ASPEED, "i3c4clk-gate", SCU1_CLK_I3C,
+ SCU1_CLK_STOP, 20, 0),
+ GATE_CLK(SCU1_CLK_GATE_I3C5CLK, CLK_GATE_ASPEED, "i3c5clk-gate", SCU1_CLK_I3C,
+ SCU1_CLK_STOP, 21, 0),
+ GATE_CLK(SCU1_CLK_GATE_I3C6CLK, CLK_GATE_ASPEED, "i3c6clk-gate", SCU1_CLK_I3C,
+ SCU1_CLK_STOP, 22, 0),
+ GATE_CLK(SCU1_CLK_GATE_I3C7CLK, CLK_GATE_ASPEED, "i3c7clk-gate", SCU1_CLK_I3C,
+ SCU1_CLK_STOP, 23, 0),
+ GATE_CLK(SCU1_CLK_GATE_I3C8CLK, CLK_GATE_ASPEED, "i3c8clk-gate", SCU1_CLK_I3C,
+ SCU1_CLK_STOP, 24, 0),
+ GATE_CLK(SCU1_CLK_GATE_I3C9CLK, CLK_GATE_ASPEED, "i3c9clk-gate", SCU1_CLK_I3C,
+ SCU1_CLK_STOP, 25, 0),
+ GATE_CLK(SCU1_CLK_GATE_I3C10CLK, CLK_GATE_ASPEED, "i3c10clk-gate", SCU1_CLK_I3C,
+ SCU1_CLK_STOP, 26, 0),
+ GATE_CLK(SCU1_CLK_GATE_I3C11CLK, CLK_GATE_ASPEED, "i3c11clk-gate", SCU1_CLK_I3C,
+ SCU1_CLK_STOP, 27, 0),
+ GATE_CLK(SCU1_CLK_GATE_I3C12CLK, CLK_GATE_ASPEED, "i3c12clk-gate", SCU1_CLK_I3C,
+ SCU1_CLK_STOP, 28, 0),
+ GATE_CLK(SCU1_CLK_GATE_I3C13CLK, CLK_GATE_ASPEED, "i3c13clk-gate", SCU1_CLK_I3C,
+ SCU1_CLK_STOP, 29, 0),
+ GATE_CLK(SCU1_CLK_GATE_I3C14CLK, CLK_GATE_ASPEED, "i3c14clk-gate", SCU1_CLK_I3C,
+ SCU1_CLK_STOP, 30, 0),
+ GATE_CLK(SCU1_CLK_GATE_I3C15CLK, CLK_GATE_ASPEED, "i3c15clk-gate", SCU1_CLK_I3C,
+ SCU1_CLK_STOP, 31, 0),
+ GATE_CLK(SCU1_CLK_GATE_UART5CLK, CLK_GATE_ASPEED, "uart5clk-gate", SCU1_CLK_UART5,
+ SCU1_CLK_STOP2, 0, CLK_IS_CRITICAL),
+ GATE_CLK(SCU1_CLK_GATE_UART6CLK, CLK_GATE_ASPEED, "uart6clk-gate", SCU1_CLK_UART6,
+ SCU1_CLK_STOP2, 1, CLK_IS_CRITICAL),
+ GATE_CLK(SCU1_CLK_GATE_UART7CLK, CLK_GATE_ASPEED, "uart7clk-gate", SCU1_CLK_UART7,
+ SCU1_CLK_STOP2, 2, CLK_IS_CRITICAL),
+ GATE_CLK(SCU1_CLK_GATE_UART8CLK, CLK_GATE_ASPEED, "uart8clk-gate", SCU1_CLK_UART8,
+ SCU1_CLK_STOP2, 3, CLK_IS_CRITICAL),
+ GATE_CLK(SCU1_CLK_GATE_UART9CLK, CLK_GATE_ASPEED, "uart9clk-gate", SCU1_CLK_UART9,
+ SCU1_CLK_STOP2, 4, 0),
+ GATE_CLK(SCU1_CLK_GATE_UART10CLK, CLK_GATE_ASPEED, "uart10clk-gate", SCU1_CLK_UART10,
+ SCU1_CLK_STOP2, 5, 0),
+ GATE_CLK(SCU1_CLK_GATE_UART11CLK, CLK_GATE_ASPEED, "uart11clk-gate", SCU1_CLK_UART11,
+ SCU1_CLK_STOP2, 6, 0),
+ GATE_CLK(SCU1_CLK_GATE_UART12CLK, CLK_GATE_ASPEED, "uart12clk-gate", SCU1_CLK_UART12,
+ SCU1_CLK_STOP2, 7, 0),
+ GATE_CLK(SCU1_CLK_GATE_FSICLK, CLK_GATE_ASPEED, "fsiclk-gate", -1, SCU1_CLK_STOP2, 8, 0),
+ GATE_CLK(SCU1_CLK_GATE_LTPIPHYCLK, CLK_GATE_ASPEED, "ltpiphyclk-gate", -1,
+ SCU1_CLK_STOP2, 9, 0),
+ GATE_CLK(SCU1_CLK_GATE_LTPICLK, CLK_GATE_ASPEED, "ltpiclk-gate", -1,
+ SCU1_CLK_STOP2, 10, 0),
+ GATE_CLK(SCU1_CLK_GATE_VGALCLK, CLK_GATE_ASPEED, "vgalclk-gate", -1,
+ SCU1_CLK_STOP2, 11, CLK_IS_CRITICAL),
+ GATE_CLK(SCU1_CLK_GATE_UHCICLK, CLK_GATE_ASPEED, "usbuartclk-gate", -1,
+ SCU1_CLK_STOP2, 12, 0),
+ GATE_CLK(SCU1_CLK_GATE_CANCLK, CLK_GATE_ASPEED, "canclk-gate", SCU1_CLK_CAN,
+ SCU1_CLK_STOP2, 13, 0),
+ GATE_CLK(SCU1_CLK_GATE_PCICLK, CLK_GATE_ASPEED, "pciclk-gate", -1,
+ SCU1_CLK_STOP2, 14, 0),
+ GATE_CLK(SCU1_CLK_GATE_SLICLK, CLK_GATE_ASPEED, "soc1-sliclk-gate", -1,
+ SCU1_CLK_STOP2, 15, CLK_IS_CRITICAL),
+ GATE_CLK(SCU1_CLK_GATE_E2MCLK, CLK_GATE_ASPEED, "soc1-e2m-gate", -1,
+ SCU1_CLK_STOP2, 16, CLK_IS_CRITICAL),
+ GATE_CLK(SCU1_CLK_GATE_PORTCUSB2CLK, CLK_GATE_ASPEED, "portcusb2-gate", -1,
+ SCU1_CLK_STOP2, 17, 0),
+ GATE_CLK(SCU1_CLK_GATE_PORTDUSB2CLK, CLK_GATE_ASPEED, "portdusb2-gate", -1,
+ SCU1_CLK_STOP2, 18, 0),
+ GATE_CLK(SCU1_CLK_GATE_LTPI1TXCLK, CLK_GATE_ASPEED, "ltp1tx-gate", -1,
+ SCU1_CLK_STOP2, 19, 0),
+};
+
+static struct clk_hw *ast2700_clk_hw_register_fixed_display(void __iomem *reg, const char *name,
+ struct ast2700_clk_ctrl *clk_ctrl)
+{
+ unsigned int mult, div, r, n;
+ u32 xdclk;
+ u32 val;
+
+ val = readl(clk_ctrl->base + SCU0_CLK_SEL2);
+ if (val & BIT(29))
+ xdclk = 800 * HZ_PER_MHZ;
+ else
+ xdclk = 1000 * HZ_PER_MHZ;
+
+ val = readl(reg);
+ r = val & GENMASK(15, 0);
+ n = (val >> 16) & GENMASK(15, 0);
+ mult = r;
+ div = 2 * n;
+
+ return devm_clk_hw_register_fixed_rate(clk_ctrl->dev, name, NULL, 0, (xdclk * mult) / div);
+}
+
+static struct clk_hw *ast2700_clk_hw_register_hpll(void __iomem *reg,
+ const char *name, const struct clk_hw *parent_hw,
+ struct ast2700_clk_ctrl *clk_ctrl)
+{
+ unsigned int mult, div;
+ u32 val;
+
+ val = readl(clk_ctrl->base + SCU0_HWSTRAP1);
+ if ((readl(clk_ctrl->base) & REVISION_ID) && (val & BIT(3))) {
+ switch ((val & GENMASK(4, 2)) >> 2) {
+ case 2:
+ return devm_clk_hw_register_fixed_rate(clk_ctrl->dev, name, NULL,
+ 0, 1800 * HZ_PER_MHZ);
+ case 3:
+ return devm_clk_hw_register_fixed_rate(clk_ctrl->dev, name, NULL,
+ 0, 1700 * HZ_PER_MHZ);
+ case 6:
+ return devm_clk_hw_register_fixed_rate(clk_ctrl->dev, name, NULL,
+ 0, 1200 * HZ_PER_MHZ);
+ case 7:
+ return devm_clk_hw_register_fixed_rate(clk_ctrl->dev, name, NULL,
+ 0, 800 * HZ_PER_MHZ);
+ default:
+ return ERR_PTR(-EINVAL);
+ }
+ } else if ((val & GENMASK(3, 2)) != 0) {
+ switch ((val & GENMASK(3, 2)) >> 2) {
+ case 1:
+ return devm_clk_hw_register_fixed_rate(clk_ctrl->dev, name, NULL,
+ 0, 1900 * HZ_PER_MHZ);
+ case 2:
+ return devm_clk_hw_register_fixed_rate(clk_ctrl->dev, name, NULL,
+ 0, 1800 * HZ_PER_MHZ);
+ case 3:
+ return devm_clk_hw_register_fixed_rate(clk_ctrl->dev, name, NULL,
+ 0, 1700 * HZ_PER_MHZ);
+ default:
+ return ERR_PTR(-EINVAL);
+ }
+ } else {
+ val = readl(reg);
+
+ if (val & BIT(24)) {
+ /* Pass through mode */
+ mult = 1;
+ div = 1;
+ } else {
+ u32 m = val & 0x1fff;
+ u32 n = (val >> 13) & 0x3f;
+ u32 p = (val >> 19) & 0xf;
+
+ mult = (m + 1) / (2 * (n + 1));
+ div = p + 1;
+ }
+ }
+
+ return devm_clk_hw_register_fixed_factor_parent_hw(clk_ctrl->dev, name,
+ parent_hw, 0, mult, div);
+}
+
+static struct clk_hw *ast2700_clk_hw_register_pll(int clk_idx, void __iomem *reg,
+ const char *name, const struct clk_hw *parent_hw,
+ struct ast2700_clk_ctrl *clk_ctrl)
+{
+ int scu = clk_ctrl->clk_data->scu;
+ unsigned int mult, div;
+ u32 val = readl(reg);
+
+ if (val & BIT(24)) {
+ /* Pass through mode */
+ mult = 1;
+ div = 1;
+ } else {
+ u32 m = val & 0x1fff;
+ u32 n = (val >> 13) & 0x3f;
+ u32 p = (val >> 19) & 0xf;
+
+ if (scu) {
+ mult = (m + 1) / (n + 1);
+ div = p + 1;
+ } else {
+ if (clk_idx == SCU0_CLK_MPLL) {
+ mult = m / (n + 1);
+ div = p + 1;
+ } else {
+ mult = (m + 1) / (2 * (n + 1));
+ div = p + 1;
+ }
+ }
+ }
+
+ return devm_clk_hw_register_fixed_factor_parent_hw(clk_ctrl->dev, name,
+ parent_hw, 0, mult, div);
+}
+
+static struct clk_hw *ast2700_clk_hw_register_uartpll(void __iomem *reg, const char *name,
+ const struct clk_hw *parent_hw,
+ struct ast2700_clk_ctrl *clk_ctrl)
+{
+ unsigned int mult, div;
+ u32 val = readl(reg);
+ u32 r = val & 0xff;
+ u32 n = (val >> 8) & 0x3ff;
+
+ mult = r;
+ div = n * 2;
+
+ return devm_clk_hw_register_fixed_factor_parent_hw(clk_ctrl->dev, name,
+ parent_hw, 0, mult, div);
+}
+
+static struct clk_hw *ast2700_clk_hw_register_misc(int clk_idx, void __iomem *reg,
+ const char *name, const struct clk_hw *parent_hw,
+ struct ast2700_clk_ctrl *clk_ctrl)
+{
+ u32 div = 0;
+
+ if (clk_idx == SCU0_CLK_MPHY) {
+ div = readl(reg) + 1;
+ } else if (clk_idx == SCU0_CLK_U2PHY_REFCLK) {
+ if (readl(clk_ctrl->base) & REVISION_ID)
+ div = (GET_USB_REFCLK_DIV(readl(reg)) + 1) << 4;
+ else
+ div = (GET_USB_REFCLK_DIV(readl(reg)) + 1) << 1;
+ } else {
+ return ERR_PTR(-EINVAL);
+ }
+
+ return devm_clk_hw_register_fixed_factor_parent_hw(clk_ctrl->dev, name,
+ parent_hw, 0, 1, div);
+}
+
+static int ast2700_clk_is_enabled(struct clk_hw *hw)
+{
+ struct clk_gate *gate = to_clk_gate(hw);
+ u32 clk = BIT(gate->bit_idx);
+ u32 reg;
+
+ reg = readl(gate->reg);
+
+ return !(reg & clk);
+}
+
+static int ast2700_clk_enable(struct clk_hw *hw)
+{
+ struct clk_gate *gate = to_clk_gate(hw);
+ u32 clk = BIT(gate->bit_idx);
+
+ if (readl(gate->reg) & clk)
+ writel(clk, gate->reg + 0x04);
+
+ return 0;
+}
+
+static void ast2700_clk_disable(struct clk_hw *hw)
+{
+ struct clk_gate *gate = to_clk_gate(hw);
+ u32 clk = BIT(gate->bit_idx);
+
+ /* Clock is set to enable, so use write to set register */
+ writel(clk, gate->reg);
+}
+
+static const struct clk_ops ast2700_clk_gate_ops = {
+ .enable = ast2700_clk_enable,
+ .disable = ast2700_clk_disable,
+ .is_enabled = ast2700_clk_is_enabled,
+};
+
+static struct clk_hw *ast2700_clk_hw_register_gate(struct device *dev, const char *name,
+ const struct clk_hw *parent_hw,
+ void __iomem *reg, u8 clock_idx,
+ unsigned long flags, spinlock_t *lock)
+{
+ struct clk_init_data init;
+ struct clk_gate *gate;
+ struct clk_hw *hw;
+ int ret = -EINVAL;
+
+ gate = kzalloc(sizeof(*gate), GFP_KERNEL);
+ if (!gate)
+ return ERR_PTR(-ENOMEM);
+
+ init.name = name;
+ init.ops = &ast2700_clk_gate_ops;
+ init.flags = flags;
+ init.parent_names = NULL;
+ init.parent_hws = parent_hw ? &parent_hw : NULL;
+ init.parent_data = NULL;
+ init.num_parents = parent_hw ? 1 : 0;
+
+ gate->reg = reg;
+ gate->bit_idx = clock_idx;
+ gate->flags = 0;
+ gate->lock = lock;
+ gate->hw.init = &init;
+
+ hw = &gate->hw;
+ ret = clk_hw_register(dev, hw);
+ if (ret) {
+ kfree(gate);
+ hw = ERR_PTR(ret);
+ }
+
+ return hw;
+}
+
+static void ast2700_soc1_configure_i3c_clk(struct ast2700_clk_ctrl *clk_ctrl)
+{
+ if (readl(clk_ctrl->base) & REVISION_ID) {
+ u32 val;
+
+ /* I3C 250MHz = HPLL/4 */
+ val = readl(clk_ctrl->base + SCU1_CLK_SEL2) & ~SCU1_CLK_I3C_DIV_MASK;
+ val |= FIELD_PREP(SCU1_CLK_I3C_DIV_MASK, SCU1_CLK_I3C_DIV(4));
+ writel(val, clk_ctrl->base + SCU1_CLK_SEL2);
+ }
+}
+
+static inline const struct clk_hw *get_parent_hw_or_null(struct clk_hw **hws, int idx)
+{
+ if (idx < 0)
+ return NULL;
+ else
+ return hws[idx];
+}
+
+static int ast2700_soc_clk_probe(struct platform_device *pdev)
+{
+ const struct ast2700_clk_data *clk_data;
+ struct clk_hw_onecell_data *clk_hw_data;
+ struct ast2700_clk_ctrl *clk_ctrl;
+ struct device *dev = &pdev->dev;
+ struct auxiliary_device *adev;
+ void __iomem *clk_base;
+ struct clk_hw **hws;
+ char *reset_name;
+ int ret;
+ int i;
+
+ clk_ctrl = devm_kzalloc(dev, sizeof(*clk_ctrl), GFP_KERNEL);
+ if (!clk_ctrl)
+ return -ENOMEM;
+ clk_ctrl->dev = dev;
+ dev_set_drvdata(&pdev->dev, clk_ctrl);
+
+ spin_lock_init(&clk_ctrl->lock);
+
+ clk_base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(clk_base))
+ return PTR_ERR(clk_base);
+
+ clk_ctrl->base = clk_base;
+
+ clk_data = device_get_match_data(dev);
+ if (!clk_data)
+ return -ENODEV;
+
+ clk_ctrl->clk_data = clk_data;
+ reset_name = devm_kasprintf(dev, GFP_KERNEL, "reset%d", clk_data->scu);
+
+ clk_hw_data = devm_kzalloc(dev, struct_size(clk_hw_data, hws, clk_data->nr_clks),
+ GFP_KERNEL);
+ if (!clk_hw_data)
+ return -ENOMEM;
+
+ clk_hw_data->num = clk_data->nr_clks;
+ hws = clk_hw_data->hws;
+
+ if (clk_data->scu)
+ ast2700_soc1_configure_i3c_clk(clk_ctrl);
+
+ for (i = 0; i < clk_data->nr_clks; i++) {
+ const struct ast2700_clk_info *clk = &clk_data->clk_info[i];
+ const struct clk_hw *phw = NULL;
+ unsigned int id = clk->id;
+ void __iomem *reg = NULL;
+
+ if (id >= clk_hw_data->num || hws[id]) {
+ dev_err(dev, "clk id %u invalid for %s\n", id, clk->name);
+ return -EINVAL;
+ }
+
+ if (clk->type == CLK_FIXED) {
+ const struct ast2700_clk_fixed_rate_data *fixed_rate = &clk->data.rate;
+
+ hws[id] = devm_clk_hw_register_fixed_rate(dev, clk->name, NULL, 0,
+ fixed_rate->fixed_rate);
+ } else if (clk->type == CLK_FIXED_FACTOR) {
+ const struct ast2700_clk_fixed_factor_data *factor = &clk->data.factor;
+
+ phw = hws[factor->parent_id];
+ hws[id] = devm_clk_hw_register_fixed_factor_parent_hw(dev, clk->name,
+ phw, 0, factor->mult,
+ factor->div);
+ } else if (clk->type == CLK_FIXED_DISPLAY) {
+ reg = clk_ctrl->base + clk->data.display_rate.reg;
+
+ hws[id] = ast2700_clk_hw_register_fixed_display(reg, clk->name, clk_ctrl);
+ } else if (clk->type == CLK_HPLL) {
+ const struct ast2700_clk_pll_data *pll = &clk->data.pll;
+
+ reg = clk_ctrl->base + pll->reg;
+ phw = hws[pll->parent_id];
+ hws[id] = ast2700_clk_hw_register_hpll(reg, clk->name, phw, clk_ctrl);
+ } else if (clk->type == CLK_PLL) {
+ const struct ast2700_clk_pll_data *pll = &clk->data.pll;
+
+ reg = clk_ctrl->base + pll->reg;
+ phw = hws[pll->parent_id];
+ hws[id] = ast2700_clk_hw_register_pll(id, reg, clk->name, phw, clk_ctrl);
+ } else if (clk->type == CLK_UART_PLL) {
+ const struct ast2700_clk_pll_data *pll = &clk->data.pll;
+
+ reg = clk_ctrl->base + pll->reg;
+ phw = hws[pll->parent_id];
+ hws[id] = ast2700_clk_hw_register_uartpll(reg, clk->name, phw, clk_ctrl);
+ } else if (clk->type == CLK_MUX) {
+ const struct ast2700_clk_mux_data *mux = &clk->data.mux;
+
+ reg = clk_ctrl->base + mux->reg;
+ for (int j = 0; j < mux->num_parents; j++) {
+ unsigned int pid = mux->parent_ids[j];
+
+ mux->parent_hws[j] = hws[pid];
+ }
+
+ hws[id] = devm_clk_hw_register_mux_parent_hws(dev, clk->name,
+ mux->parent_hws,
+ mux->num_parents, 0,
+ reg, mux->bit_shift,
+ mux->bit_width, 0,
+ &clk_ctrl->lock);
+ } else if (clk->type == CLK_MISC) {
+ const struct ast2700_clk_pll_data *pll = &clk->data.pll;
+
+ reg = clk_ctrl->base + pll->reg;
+ phw = hws[pll->parent_id];
+ hws[id] = ast2700_clk_hw_register_misc(id, reg, clk->name, phw, clk_ctrl);
+ } else if (clk->type == CLK_DIVIDER) {
+ const struct ast2700_clk_div_data *divider = &clk->data.div;
+
+ reg = clk_ctrl->base + divider->reg;
+ phw = hws[divider->parent_id];
+ hws[id] = clk_hw_register_divider_table_parent_hw(dev, clk->name,
+ phw,
+ 0, reg,
+ divider->bit_shift,
+ divider->bit_width, 0,
+ divider->div_table,
+ &clk_ctrl->lock);
+ } else if (clk->type == CLK_GATE_ASPEED) {
+ const struct ast2700_clk_gate_data *gate = &clk->data.gate;
+
+ phw = get_parent_hw_or_null(hws, gate->parent_id);
+ reg = clk_ctrl->base + gate->reg;
+ hws[id] = ast2700_clk_hw_register_gate(dev, clk->name, phw, reg, gate->bit,
+ gate->flags, &clk_ctrl->lock);
+ } else {
+ const struct ast2700_clk_gate_data *gate = &clk->data.gate;
+
+ phw = get_parent_hw_or_null(hws, gate->parent_id);
+ reg = clk_ctrl->base + gate->reg;
+ hws[id] = devm_clk_hw_register_gate_parent_hw(dev, clk->name, phw,
+ gate->flags, reg, gate->bit,
+ 0, &clk_ctrl->lock);
+ }
+
+ if (IS_ERR(hws[id]))
+ return PTR_ERR(hws[id]);
+ }
+
+ ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, clk_hw_data);
+ if (ret)
+ return ret;
+
+ adev = devm_auxiliary_device_create(dev, reset_name, (__force void *)clk_base);
+ if (!adev)
+ return -ENODEV;
+
+ return 0;
+}
+
+static const struct ast2700_clk_data ast2700_clk0_data = {
+ .scu = 0,
+ .nr_clks = ARRAY_SIZE(ast2700_scu0_clk_info),
+ .clk_info = ast2700_scu0_clk_info,
+};
+
+static const struct ast2700_clk_data ast2700_clk1_data = {
+ .scu = 1,
+ .nr_clks = ARRAY_SIZE(ast2700_scu1_clk_info),
+ .clk_info = ast2700_scu1_clk_info,
+};
+
+static const struct of_device_id ast2700_scu_match[] = {
+ { .compatible = "aspeed,ast2700-scu0", .data = &ast2700_clk0_data },
+ { .compatible = "aspeed,ast2700-scu1", .data = &ast2700_clk1_data },
+ { /* sentinel */ }
+};
+
+MODULE_DEVICE_TABLE(of, ast2700_scu_match);
+
+static struct platform_driver ast2700_scu_driver = {
+ .probe = ast2700_soc_clk_probe,
+ .driver = {
+ .name = "clk-ast2700",
+ .of_match_table = ast2700_scu_match,
+ },
+};
+
+module_platform_driver(ast2700_scu_driver);
--
2.34.1© 2016 - 2025 Red Hat, Inc.