clk: starfive: jh7110: Separate the PLL driver
Drop the PLL part in SYSCRG driver and separate to be a single
PLL driver of which the compatible is "starfive,jh7110-pll".
Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
Reviewed-by: Torsten Duwe <duwe@suse.de>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
diff --git a/drivers/clk/starfive/clk-jh7110-pll.c b/drivers/clk/starfive/clk-jh7110-pll.c
index 7492b1f..bb75a6d 100644
--- a/drivers/clk/starfive/clk-jh7110-pll.c
+++ b/drivers/clk/starfive/clk-jh7110-pll.c
@@ -3,6 +3,7 @@
* Copyright (C) 2022-23 StarFive Technology Co., Ltd.
*
* Author: Yanhong Wang <yanhong.wang@starfivetech.com>
+ * Xingyu Wu <xingyu.wu@starfivetech.com>
*/
#include <common.h>
@@ -11,13 +12,13 @@
#include <clk-uclass.h>
#include <div64.h>
#include <dm/device.h>
+#include <dm/read.h>
+#include <dt-bindings/clock/starfive,jh7110-crg.h>
#include <linux/bitops.h>
#include <linux/clk-provider.h>
#include <linux/delay.h>
#include <linux/err.h>
-#include "clk.h"
-
#define UBOOT_DM_CLK_JH7110_PLLX "jh7110_clk_pllx"
#define PLL_PD_OFF 1
@@ -30,6 +31,45 @@
#define CLK_DDR_BUS_PLL1_DIV4 2
#define CLK_DDR_BUS_PLL1_DIV8 3
+enum starfive_pll_type {
+ PLL0 = 0,
+ PLL1,
+ PLL2,
+ PLL_MAX = PLL2
+};
+
+struct starfive_pllx_rate {
+ u64 rate;
+ u32 prediv;
+ u32 fbdiv;
+ u32 frac;
+};
+
+struct starfive_pllx_offset {
+ u32 pd;
+ u32 prediv;
+ u32 fbdiv;
+ u32 frac;
+ u32 postdiv1;
+ u32 dacpd;
+ u32 dsmpd;
+ u32 pd_mask;
+ u32 prediv_mask;
+ u32 fbdiv_mask;
+ u32 frac_mask;
+ u32 postdiv1_mask;
+ u32 dacpd_mask;
+ u32 dsmpd_mask;
+};
+
+struct starfive_pllx_clk {
+ enum starfive_pll_type type;
+ const struct starfive_pllx_offset *offset;
+ const struct starfive_pllx_rate *rate_table;
+ int rate_count;
+ int flags;
+};
+
struct clk_jh7110_pllx {
struct clk clk;
void __iomem *base;
@@ -271,7 +311,7 @@
return jh7110_pllx_recalc_rate(clk);
}
-static const struct clk_ops clk_jh7110_ops = {
+static const struct clk_ops jh7110_clk_pllx_ops = {
.set_rate = jh7110_pllx_set_rate,
.get_rate = jh7110_pllx_recalc_rate,
};
@@ -314,8 +354,46 @@
return clk;
}
+/* PLLx clock implementation */
U_BOOT_DRIVER(jh7110_clk_pllx) = {
.name = UBOOT_DM_CLK_JH7110_PLLX,
.id = UCLASS_CLK,
- .ops = &clk_jh7110_ops,
+ .ops = &jh7110_clk_pllx_ops,
+ .flags = DM_FLAG_PRE_RELOC,
+};
+
+static int jh7110_pll_clk_probe(struct udevice *dev)
+{
+ void __iomem *reg = (void __iomem *)dev_read_addr_ptr(dev->parent);
+ fdt_addr_t sysreg = ofnode_get_addr(ofnode_by_compatible(ofnode_null(),
+ "starfive,jh7110-syscrg"));
+
+ if (sysreg == FDT_ADDR_T_NONE)
+ return -EINVAL;
+
+ clk_dm(JH7110_SYSCLK_PLL0_OUT,
+ starfive_jh7110_pll("pll0_out", "oscillator", reg,
+ (void __iomem *)sysreg, &starfive_jh7110_pll0));
+ clk_dm(JH7110_SYSCLK_PLL1_OUT,
+ starfive_jh7110_pll("pll1_out", "oscillator", reg,
+ (void __iomem *)sysreg, &starfive_jh7110_pll1));
+ clk_dm(JH7110_SYSCLK_PLL2_OUT,
+ starfive_jh7110_pll("pll2_out", "oscillator", reg,
+ (void __iomem *)sysreg, &starfive_jh7110_pll2));
+
+ return 0;
+}
+
+static const struct udevice_id jh7110_pll_clk_of_match[] = {
+ { .compatible = "starfive,jh7110-pll", },
+ { }
+};
+
+/* PLL clk device */
+U_BOOT_DRIVER(jh7110_pll_clk) = {
+ .name = "jh7110_pll_clk",
+ .id = UCLASS_CLK,
+ .of_match = jh7110_pll_clk_of_match,
+ .probe = jh7110_pll_clk_probe,
+ .ops = &ccf_clk_ops,
};