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-rw-r--r--drivers/clk/Kconfig1
-rw-r--r--drivers/clk/Makefile1
-rw-r--r--drivers/clk/analogbits/Kconfig4
-rw-r--r--drivers/clk/analogbits/Makefile3
-rw-r--r--drivers/clk/analogbits/wrpll-cln28hpc.c (renamed from drivers/clk/sifive/wrpll-cln28hpc.c)168
-rw-r--r--drivers/clk/clk-uclass.c2
-rw-r--r--drivers/clk/clk_stm32mp1.c9
-rw-r--r--drivers/clk/rockchip/clk_rk3399.c88
-rw-r--r--drivers/clk/sifive/Kconfig10
-rw-r--r--drivers/clk/sifive/Makefile4
-rw-r--r--drivers/clk/sifive/analogbits-wrpll-cln28hpc.h101
-rw-r--r--drivers/clk/sifive/fu540-prci.c123
-rw-r--r--drivers/clk/sifive/gemgxl-mgmt.c60
13 files changed, 215 insertions, 359 deletions
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 9399bb79e9..5e92446c18 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -112,6 +112,7 @@ config CLK_STM32MP1
Enable the STM32 clock (RCC) driver. Enable support for
manipulating STM32MP1's on-SoC clocks.
+source "drivers/clk/analogbits/Kconfig"
source "drivers/clk/at91/Kconfig"
source "drivers/clk/exynos/Kconfig"
source "drivers/clk/imx/Kconfig"
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 37dfd281e9..b7fec605c6 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_$(SPL_TPL_)CLK) += clk_fixed_factor.o
obj-$(CONFIG_$(SPL_TPL_)CLK_CCF) += clk.o clk-divider.o clk-mux.o
obj-$(CONFIG_$(SPL_TPL_)CLK_CCF) += clk-fixed-factor.o
+obj-y += analogbits/
obj-y += imx/
obj-y += tegra/
obj-$(CONFIG_ARCH_ASPEED) += aspeed/
diff --git a/drivers/clk/analogbits/Kconfig b/drivers/clk/analogbits/Kconfig
new file mode 100644
index 0000000000..1d25e6f124
--- /dev/null
+++ b/drivers/clk/analogbits/Kconfig
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
+
+config CLK_ANALOGBITS_WRPLL_CLN28HPC
+ bool
diff --git a/drivers/clk/analogbits/Makefile b/drivers/clk/analogbits/Makefile
new file mode 100644
index 0000000000..ec1bb4092b
--- /dev/null
+++ b/drivers/clk/analogbits/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+obj-$(CONFIG_CLK_ANALOGBITS_WRPLL_CLN28HPC) += wrpll-cln28hpc.o
diff --git a/drivers/clk/sifive/wrpll-cln28hpc.c b/drivers/clk/analogbits/wrpll-cln28hpc.c
index d377849693..776ead319a 100644
--- a/drivers/clk/sifive/wrpll-cln28hpc.c
+++ b/drivers/clk/analogbits/wrpll-cln28hpc.c
@@ -1,20 +1,9 @@
// SPDX-License-Identifier: GPL-2.0
/*
- * Copyright (c) 2019 Western Digital Corporation or its affiliates.
- *
- * Copyright (C) 2018 SiFive, Inc.
+ * Copyright (C) 2018-2019 SiFive, Inc.
* Wesley Terpstra
* Paul Walmsley
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
* This library supports configuration parsing and reprogramming of
* the CLN28HPC variant of the Analog Bits Wide Range PLL. The
* intention is for this library to be reusable for any device that
@@ -29,14 +18,14 @@
* References:
* - Analog Bits "Wide Range PLL Datasheet", version 2015.10.01
* - SiFive FU540-C000 Manual v1p0, Chapter 7 "Clocking and Reset"
+ * https://static.dev.sifive.com/FU540-C000-v1.0.pdf
*/
#include <linux/bug.h>
#include <linux/err.h>
#include <linux/log2.h>
#include <linux/math64.h>
-
-#include "analogbits-wrpll-cln28hpc.h"
+#include <linux/clk/analogbits-wrpll-cln28hpc.h>
/* MIN_INPUT_FREQ: minimum input clock frequency, in Hz (Fref_min) */
#define MIN_INPUT_FREQ 7000000
@@ -85,40 +74,38 @@
* range selection.
*
* Return: The RANGE value to be presented to the PLL configuration inputs,
- * or -1 upon error.
+ * or a negative return code upon error.
*/
static int __wrpll_calc_filter_range(unsigned long post_divr_freq)
{
- u8 range;
-
if (post_divr_freq < MIN_POST_DIVR_FREQ ||
post_divr_freq > MAX_POST_DIVR_FREQ) {
WARN(1, "%s: post-divider reference freq out of range: %lu",
__func__, post_divr_freq);
- return -1;
+ return -ERANGE;
}
- if (post_divr_freq < 11000000)
- range = 1;
- else if (post_divr_freq < 18000000)
- range = 2;
- else if (post_divr_freq < 30000000)
- range = 3;
- else if (post_divr_freq < 50000000)
- range = 4;
- else if (post_divr_freq < 80000000)
- range = 5;
- else if (post_divr_freq < 130000000)
- range = 6;
- else
- range = 7;
-
- return range;
+ switch (post_divr_freq) {
+ case 0 ... 10999999:
+ return 1;
+ case 11000000 ... 17999999:
+ return 2;
+ case 18000000 ... 29999999:
+ return 3;
+ case 30000000 ... 49999999:
+ return 4;
+ case 50000000 ... 79999999:
+ return 5;
+ case 80000000 ... 129999999:
+ return 6;
+ }
+
+ return 7;
}
/**
* __wrpll_calc_fbdiv() - return feedback fixed divide value
- * @c: ptr to a struct analogbits_wrpll_cfg record to read from
+ * @c: ptr to a struct wrpll_cfg record to read from
*
* The internal feedback path includes a fixed by-two divider; the
* external feedback path does not. Return the appropriate divider
@@ -133,7 +120,7 @@ static int __wrpll_calc_filter_range(unsigned long post_divr_freq)
* Return: 2 if internal feedback is enabled or 1 if external feedback
* is enabled.
*/
-static u8 __wrpll_calc_fbdiv(struct analogbits_wrpll_cfg *c)
+static u8 __wrpll_calc_fbdiv(const struct wrpll_cfg *c)
{
return (c->flags & WRPLL_FLAGS_INT_FEEDBACK_MASK) ? 2 : 1;
}
@@ -173,7 +160,7 @@ static u8 __wrpll_calc_divq(u32 target_rate, u64 *vco_rate)
*vco_rate = MIN_VCO_FREQ;
} else {
divq = ilog2(s);
- *vco_rate = target_rate << divq;
+ *vco_rate = (u64)target_rate << divq;
}
wcd_out:
@@ -182,7 +169,7 @@ wcd_out:
/**
* __wrpll_update_parent_rate() - update PLL data when parent rate changes
- * @c: ptr to a struct analogbits_wrpll_cfg record to write PLL data to
+ * @c: ptr to a struct wrpll_cfg record to write PLL data to
* @parent_rate: PLL input refclk rate (pre-R-divider)
*
* Pre-compute some data used by the PLL configuration algorithm when
@@ -190,46 +177,40 @@ wcd_out:
* computation when the parent rate remains constant - expected to be
* the common case.
*
- * Returns: 0 upon success or -1 if the reference clock rate is out of range.
+ * Returns: 0 upon success or -ERANGE if the reference clock rate is
+ * out of range.
*/
-static int __wrpll_update_parent_rate(struct analogbits_wrpll_cfg *c,
+static int __wrpll_update_parent_rate(struct wrpll_cfg *c,
unsigned long parent_rate)
{
u8 max_r_for_parent;
if (parent_rate > MAX_INPUT_FREQ || parent_rate < MIN_POST_DIVR_FREQ)
- return -1;
+ return -ERANGE;
- c->_parent_rate = parent_rate;
+ c->parent_rate = parent_rate;
max_r_for_parent = div_u64(parent_rate, MIN_POST_DIVR_FREQ);
- c->_max_r = min_t(u8, MAX_DIVR_DIVISOR, max_r_for_parent);
+ c->max_r = min_t(u8, MAX_DIVR_DIVISOR, max_r_for_parent);
- /* Round up */
- c->_init_r = div_u64(parent_rate + MAX_POST_DIVR_FREQ - 1,
- MAX_POST_DIVR_FREQ);
+ c->init_r = DIV_ROUND_UP_ULL(parent_rate, MAX_POST_DIVR_FREQ);
return 0;
}
-/*
- * Public functions
- */
-
/**
- * analogbits_wrpll_configure() - compute PLL configuration for a target rate
- * @c: ptr to a struct analogbits_wrpll_cfg record to write into
+ * wrpll_configure() - compute PLL configuration for a target rate
+ * @c: ptr to a struct wrpll_cfg record to write into
* @target_rate: target PLL output clock rate (post-Q-divider)
* @parent_rate: PLL input refclk rate (pre-R-divider)
*
- * Given a pointer to a PLL context @c, a desired PLL target output
- * rate @target_rate, and a reference clock input rate @parent_rate,
- * compute the appropriate PLL signal configuration values. PLL
- * reprogramming is not glitchless, so the caller should switch any
- * downstream logic to a different clock source or clock-gate it
- * before presenting these values to the PLL configuration signals.
+ * Compute the appropriate PLL signal configuration values and store
+ * in PLL context @c. PLL reprogramming is not glitchless, so the
+ * caller should switch any downstream logic to a different clock
+ * source or clock-gate it before presenting these values to the PLL
+ * configuration signals.
*
* The caller must pass this function a pre-initialized struct
- * analogbits_wrpll_cfg record: either initialized to zero (with the
+ * wrpll_cfg record: either initialized to zero (with the
* exception of the .name and .flags fields) or read from the PLL.
*
* Context: Any context. Caller must protect the memory pointed to by @c
@@ -237,41 +218,26 @@ static int __wrpll_update_parent_rate(struct analogbits_wrpll_cfg *c,
*
* Return: 0 upon success; anything else upon failure.
*/
-int analogbits_wrpll_configure_for_rate(struct analogbits_wrpll_cfg *c,
- u32 target_rate,
- unsigned long parent_rate)
+int wrpll_configure_for_rate(struct wrpll_cfg *c, u32 target_rate,
+ unsigned long parent_rate)
{
unsigned long ratio;
u64 target_vco_rate, delta, best_delta, f_pre_div, vco, vco_pre;
- u32 best_f, f, post_divr_freq, fbcfg;
+ u32 best_f, f, post_divr_freq;
u8 fbdiv, divq, best_r, r;
-
- if (!c)
- return -1;
+ int range;
if (c->flags == 0) {
WARN(1, "%s called with uninitialized PLL config", __func__);
- return -1;
- }
-
- fbcfg = WRPLL_FLAGS_INT_FEEDBACK_MASK | WRPLL_FLAGS_EXT_FEEDBACK_MASK;
- if ((c->flags & fbcfg) == fbcfg) {
- WARN(1, "%s called with invalid PLL config", __func__);
- return -1;
- }
-
- if (c->flags == WRPLL_FLAGS_EXT_FEEDBACK_MASK) {
- WARN(1, "%s: external feedback mode not currently supported",
- __func__);
- return -1;
+ return -EINVAL;
}
/* Initialize rounding data if it hasn't been initialized already */
- if (parent_rate != c->_parent_rate) {
+ if (parent_rate != c->parent_rate) {
if (__wrpll_update_parent_rate(c, parent_rate)) {
pr_err("%s: PLL input rate is out of range\n",
__func__);
- return -1;
+ return -ERANGE;
}
}
@@ -282,11 +248,12 @@ int analogbits_wrpll_configure_for_rate(struct analogbits_wrpll_cfg *c,
c->flags |= WRPLL_FLAGS_BYPASS_MASK;
return 0;
}
+
c->flags &= ~WRPLL_FLAGS_BYPASS_MASK;
/* Calculate the Q shift and target VCO rate */
divq = __wrpll_calc_divq(target_rate, &target_vco_rate);
- if (divq == 0)
+ if (!divq)
return -1;
c->divq = divq;
@@ -302,8 +269,7 @@ int analogbits_wrpll_configure_for_rate(struct analogbits_wrpll_cfg *c,
* Consider all values for R which land within
* [MIN_POST_DIVR_FREQ, MAX_POST_DIVR_FREQ]; prefer smaller R
*/
- for (r = c->_init_r; r <= c->_max_r; ++r) {
- /* What is the best F we can pick in this case? */
+ for (r = c->init_r; r <= c->max_r; ++r) {
f_pre_div = ratio * r;
f = (f_pre_div + (1 << ROUND_SHIFT)) >> ROUND_SHIFT;
f >>= (fbdiv - 1);
@@ -335,46 +301,54 @@ int analogbits_wrpll_configure_for_rate(struct analogbits_wrpll_cfg *c,
post_divr_freq = div_u64(parent_rate, best_r);
/* Pick the best PLL jitter filter */
- c->range = __wrpll_calc_filter_range(post_divr_freq);
+ range = __wrpll_calc_filter_range(post_divr_freq);
+ if (range < 0)
+ return range;
+ c->range = range;
return 0;
}
/**
- * analogbits_wrpll_calc_output_rate() - calculate the PLL's target output rate
- * @c: ptr to a struct analogbits_wrpll_cfg record to read from
+ * wrpll_calc_output_rate() - calculate the PLL's target output rate
+ * @c: ptr to a struct wrpll_cfg record to read from
* @parent_rate: PLL refclk rate
*
* Given a pointer to the PLL's current input configuration @c and the
* PLL's input reference clock rate @parent_rate (before the R
* pre-divider), calculate the PLL's output clock rate (after the Q
- * post-divider)
+ * post-divider).
*
* Context: Any context. Caller must protect the memory pointed to by @c
* from simultaneous modification.
*
- * Return: the PLL's output clock rate, in Hz.
+ * Return: the PLL's output clock rate, in Hz. The return value from
+ * this function is intended to be convenient to pass directly
+ * to the Linux clock framework; thus there is no explicit
+ * error return value.
*/
-unsigned long analogbits_wrpll_calc_output_rate(struct analogbits_wrpll_cfg *c,
- unsigned long parent_rate)
+unsigned long wrpll_calc_output_rate(const struct wrpll_cfg *c,
+ unsigned long parent_rate)
{
u8 fbdiv;
u64 n;
- WARN(c->flags & WRPLL_FLAGS_EXT_FEEDBACK_MASK,
- "external feedback mode not yet supported");
+ if (c->flags & WRPLL_FLAGS_EXT_FEEDBACK_MASK) {
+ WARN(1, "external feedback mode not yet supported");
+ return ULONG_MAX;
+ }
fbdiv = __wrpll_calc_fbdiv(c);
n = parent_rate * fbdiv * (c->divf + 1);
- n = div_u64(n, (c->divr + 1));
+ n = div_u64(n, c->divr + 1);
n >>= c->divq;
return n;
}
/**
- * analogbits_wrpll_calc_max_lock_us() - return the time for the PLL to lock
- * @c: ptr to a struct analogbits_wrpll_cfg record to read from
+ * wrpll_calc_max_lock_us() - return the time for the PLL to lock
+ * @c: ptr to a struct wrpll_cfg record to read from
*
* Return the minimum amount of time (in microseconds) that the caller
* must wait after reprogramming the PLL to ensure that it is locked
@@ -384,7 +358,7 @@ unsigned long analogbits_wrpll_calc_output_rate(struct analogbits_wrpll_cfg *c,
* Return: the minimum amount of time the caller must wait for the PLL
* to lock (in microseconds)
*/
-unsigned int analogbits_wrpll_calc_max_lock_us(struct analogbits_wrpll_cfg *c)
+unsigned int wrpll_calc_max_lock_us(const struct wrpll_cfg *c)
{
return MAX_LOCK_US;
}
diff --git a/drivers/clk/clk-uclass.c b/drivers/clk/clk-uclass.c
index 5acf186b01..85dfe712f5 100644
--- a/drivers/clk/clk-uclass.c
+++ b/drivers/clk/clk-uclass.c
@@ -52,6 +52,8 @@ static int clk_of_xlate_default(struct clk *clk,
else
clk->id = 0;
+ clk->data = 0;
+
return 0;
}
diff --git a/drivers/clk/clk_stm32mp1.c b/drivers/clk/clk_stm32mp1.c
index 6ffa05b8fd..5806d48696 100644
--- a/drivers/clk/clk_stm32mp1.c
+++ b/drivers/clk/clk_stm32mp1.c
@@ -300,6 +300,7 @@ enum stm32mp1_parent_sel {
_DSI_SEL,
_ADC12_SEL,
_SPI1_SEL,
+ _RTC_SEL,
_PARENT_SEL_NB,
_UNKNOWN_SEL = 0xff,
};
@@ -534,6 +535,7 @@ static const struct stm32mp1_clk_gate stm32mp1_clk_gate[] = {
STM32MP1_CLK_SET_CLR(RCC_MP_APB4ENSETR, 16, USBPHY_K, _USBPHY_SEL),
STM32MP1_CLK_SET_CLR(RCC_MP_APB5ENSETR, 2, I2C4_K, _I2C46_SEL),
+ STM32MP1_CLK_SET_CLR(RCC_MP_APB5ENSETR, 8, RTCAPB, _PCLK5),
STM32MP1_CLK_SET_CLR(RCC_MP_APB5ENSETR, 20, STGEN_K, _STGEN_SEL),
STM32MP1_CLK_SET_CLR_F(RCC_MP_AHB2ENSETR, 5, ADC12, _HCLK2),
@@ -569,6 +571,8 @@ static const struct stm32mp1_clk_gate stm32mp1_clk_gate[] = {
STM32MP1_CLK_SET_CLR(RCC_MP_AHB6ENSETR, 24, USBH, _UNKNOWN_SEL),
STM32MP1_CLK(RCC_DBGCFGR, 8, CK_DBG, _UNKNOWN_SEL),
+
+ STM32MP1_CLK(RCC_BDCR, 20, RTC, _RTC_SEL),
};
static const u8 i2c12_parents[] = {_PCLK1, _PLL4_R, _HSI_KER, _CSI_KER};
@@ -594,6 +598,7 @@ static const u8 dsi_parents[] = {_DSI_PHY, _PLL4_P};
static const u8 adc_parents[] = {_PLL4_R, _CK_PER, _PLL3_Q};
static const u8 spi_parents[] = {_PLL4_P, _PLL3_Q, _I2S_CKIN, _CK_PER,
_PLL3_R};
+static const u8 rtc_parents[] = {_UNKNOWN_ID, _LSE, _LSI, _HSE};
static const struct stm32mp1_clk_sel stm32mp1_clk_sel[_PARENT_SEL_NB] = {
STM32MP1_CLK_PARENT(_I2C12_SEL, RCC_I2C12CKSELR, 0, 0x7, i2c12_parents),
@@ -619,6 +624,9 @@ static const struct stm32mp1_clk_sel stm32mp1_clk_sel[_PARENT_SEL_NB] = {
STM32MP1_CLK_PARENT(_DSI_SEL, RCC_DSICKSELR, 0, 0x1, dsi_parents),
STM32MP1_CLK_PARENT(_ADC12_SEL, RCC_ADCCKSELR, 0, 0x1, adc_parents),
STM32MP1_CLK_PARENT(_SPI1_SEL, RCC_SPI2S1CKSELR, 0, 0x7, spi_parents),
+ STM32MP1_CLK_PARENT(_RTC_SEL, RCC_BDCR, RCC_BDCR_RTCSRC_SHIFT,
+ (RCC_BDCR_RTCSRC_MASK >> RCC_BDCR_RTCSRC_SHIFT),
+ rtc_parents),
};
#ifdef STM32MP1_CLOCK_TREE_INIT
@@ -734,6 +742,7 @@ char * const stm32mp1_clk_parent_sel_name[_PARENT_SEL_NB] = {
[_DSI_SEL] = "DSI",
[_ADC12_SEL] = "ADC12",
[_SPI1_SEL] = "SPI1",
+ [_RTC_SEL] = "RTC",
};
static const struct stm32mp1_clk_data stm32mp1_data = {
diff --git a/drivers/clk/rockchip/clk_rk3399.c b/drivers/clk/rockchip/clk_rk3399.c
index aa6a8ad1c9..d9950c159b 100644
--- a/drivers/clk/rockchip/clk_rk3399.c
+++ b/drivers/clk/rockchip/clk_rk3399.c
@@ -38,8 +38,8 @@ struct pll_div {
};
#define RATE_TO_DIV(input_rate, output_rate) \
- ((input_rate) / (output_rate) - 1);
-#define DIV_TO_RATE(input_rate, div) ((input_rate) / ((div) + 1))
+ ((input_rate) / (output_rate) - 1)
+#define DIV_TO_RATE(input_rate, div) ((input_rate) / ((div) + 1))
#define PLL_DIVISORS(hz, _refdiv, _postdiv1, _postdiv2) {\
.refdiv = _refdiv,\
@@ -53,15 +53,15 @@ static const struct pll_div cpll_init_cfg = PLL_DIVISORS(CPLL_HZ, 1, 2, 2);
static const struct pll_div ppll_init_cfg = PLL_DIVISORS(PPLL_HZ, 2, 2, 1);
#endif
-static const struct pll_div apll_l_1600_cfg = PLL_DIVISORS(1600*MHz, 3, 1, 1);
-static const struct pll_div apll_l_600_cfg = PLL_DIVISORS(600*MHz, 1, 2, 1);
+static const struct pll_div apll_l_1600_cfg = PLL_DIVISORS(1600 * MHz, 3, 1, 1);
+static const struct pll_div apll_l_600_cfg = PLL_DIVISORS(600 * MHz, 1, 2, 1);
static const struct pll_div *apll_l_cfgs[] = {
[APLL_L_1600_MHZ] = &apll_l_1600_cfg,
[APLL_L_600_MHZ] = &apll_l_600_cfg,
};
-static const struct pll_div apll_b_600_cfg = PLL_DIVISORS(600*MHz, 1, 2, 1);
+static const struct pll_div apll_b_600_cfg = PLL_DIVISORS(600 * MHz, 1, 2, 1);
static const struct pll_div *apll_b_cfgs[] = {
[APLL_B_600_MHZ] = &apll_b_600_cfg,
};
@@ -393,7 +393,7 @@ static int pll_para_config(u32 freq_hz, struct pll_div *div)
fref_khz = ref_khz / refdiv;
fbdiv = vco_khz / fref_khz;
- if ((fbdiv >= max_fbdiv) || (fbdiv <= min_fbdiv))
+ if (fbdiv >= max_fbdiv || fbdiv <= min_fbdiv)
continue;
diff_khz = vco_khz - fbdiv * fref_khz;
if (fbdiv + 1 < max_fbdiv && diff_khz > fref_khz / 2) {
@@ -409,7 +409,7 @@ static int pll_para_config(u32 freq_hz, struct pll_div *div)
div->fbdiv = fbdiv;
}
- if (best_diff_khz > 4 * (MHz/KHz)) {
+ if (best_diff_khz > 4 * (MHz / KHz)) {
printf("%s: Failed to match output frequency %u, "
"difference is %u Hz,exceed 4MHZ\n", __func__, freq_hz,
best_diff_khz * KHz);
@@ -489,28 +489,21 @@ void rk3399_configure_cpu_b(struct rk3399_cru *cru,
}
#define I2C_CLK_REG_MASK(bus) \
- (I2C_DIV_CON_MASK << \
- CLK_I2C ##bus## _DIV_CON_SHIFT | \
- CLK_I2C_PLL_SEL_MASK << \
- CLK_I2C ##bus## _PLL_SEL_SHIFT)
+ (I2C_DIV_CON_MASK << CLK_I2C ##bus## _DIV_CON_SHIFT | \
+ CLK_I2C_PLL_SEL_MASK << CLK_I2C ##bus## _PLL_SEL_SHIFT)
#define I2C_CLK_REG_VALUE(bus, clk_div) \
- ((clk_div - 1) << \
- CLK_I2C ##bus## _DIV_CON_SHIFT | \
- CLK_I2C_PLL_SEL_GPLL << \
- CLK_I2C ##bus## _PLL_SEL_SHIFT)
+ ((clk_div - 1) << CLK_I2C ##bus## _DIV_CON_SHIFT | \
+ CLK_I2C_PLL_SEL_GPLL << CLK_I2C ##bus## _PLL_SEL_SHIFT)
#define I2C_CLK_DIV_VALUE(con, bus) \
- (con >> CLK_I2C ##bus## _DIV_CON_SHIFT) & \
- I2C_DIV_CON_MASK;
+ ((con >> CLK_I2C ##bus## _DIV_CON_SHIFT) & I2C_DIV_CON_MASK)
#define I2C_PMUCLK_REG_MASK(bus) \
- (I2C_DIV_CON_MASK << \
- CLK_I2C ##bus## _DIV_CON_SHIFT)
+ (I2C_DIV_CON_MASK << CLK_I2C ##bus## _DIV_CON_SHIFT)
#define I2C_PMUCLK_REG_VALUE(bus, clk_div) \
- ((clk_div - 1) << \
- CLK_I2C ##bus## _DIV_CON_SHIFT)
+ ((clk_div - 1) << CLK_I2C ##bus## _DIV_CON_SHIFT)
static ulong rk3399_i2c_get_clk(struct rk3399_cru *cru, ulong clk_id)
{
@@ -597,9 +590,9 @@ static ulong rk3399_i2c_set_clk(struct rk3399_cru *cru, ulong clk_id, uint hz)
*/
struct spi_clkreg {
- uint8_t reg; /* CLKSEL_CON[reg] register in CRU */
- uint8_t div_shift;
- uint8_t sel_shift;
+ u8 reg; /* CLKSEL_CON[reg] register in CRU */
+ u8 div_shift;
+ u8 sel_shift;
};
/*
@@ -678,7 +671,7 @@ static ulong rk3399_spi_set_clk(struct rk3399_cru *cru, ulong clk_id, uint hz)
static ulong rk3399_vop_set_clk(struct rk3399_cru *cru, ulong clk_id, u32 hz)
{
struct pll_div vpll_config = {0};
- int aclk_vop = 198*MHz;
+ int aclk_vop = 198 * MHz;
void *aclkreg_addr, *dclkreg_addr;
u32 div;
@@ -710,7 +703,7 @@ static ulong rk3399_vop_set_clk(struct rk3399_cru *cru, ulong clk_id, u32 hz)
rkclk_set_pll(&cru->vpll_con[0], &vpll_config);
rk_clrsetreg(dclkreg_addr,
- DCLK_VOP_DCLK_SEL_MASK | DCLK_VOP_PLL_SEL_MASK|
+ DCLK_VOP_DCLK_SEL_MASK | DCLK_VOP_PLL_SEL_MASK |
DCLK_VOP_DIV_CON_MASK,
DCLK_VOP_DCLK_SEL_DIVOUT << DCLK_VOP_DCLK_SEL_SHIFT |
DCLK_VOP_PLL_SEL_VPLL << DCLK_VOP_PLL_SEL_SHIFT |
@@ -750,7 +743,7 @@ static ulong rk3399_mmc_set_clk(struct rk3399_cru *cru,
ulong clk_id, ulong set_rate)
{
int src_clk_div;
- int aclk_emmc = 198*MHz;
+ int aclk_emmc = 198 * MHz;
switch (clk_id) {
case HCLK_SDMMC:
@@ -776,7 +769,7 @@ static ulong rk3399_mmc_set_clk(struct rk3399_cru *cru,
break;
case SCLK_EMMC:
/* Select aclk_emmc source from GPLL */
- src_clk_div = DIV_ROUND_UP(GPLL_HZ , aclk_emmc);
+ src_clk_div = DIV_ROUND_UP(GPLL_HZ, aclk_emmc);
assert(src_clk_div - 1 < 32);
rk_clrsetreg(&cru->clksel_con[21],
@@ -834,23 +827,31 @@ static ulong rk3399_ddr_set_clk(struct rk3399_cru *cru,
/* clk_ddrc == DPLL = 24MHz / refdiv * fbdiv / postdiv1 / postdiv2 */
switch (set_rate) {
- case 200*MHz:
+ case 50 * MHz:
+ dpll_cfg = (struct pll_div)
+ {.refdiv = 1, .fbdiv = 12, .postdiv1 = 3, .postdiv2 = 2};
+ break;
+ case 200 * MHz:
dpll_cfg = (struct pll_div)
{.refdiv = 1, .fbdiv = 50, .postdiv1 = 6, .postdiv2 = 1};
break;
- case 300*MHz:
+ case 300 * MHz:
dpll_cfg = (struct pll_div)
{.refdiv = 2, .fbdiv = 100, .postdiv1 = 4, .postdiv2 = 1};
break;
- case 666*MHz:
+ case 400 * MHz:
+ dpll_cfg = (struct pll_div)
+ {.refdiv = 1, .fbdiv = 50, .postdiv1 = 3, .postdiv2 = 1};
+ break;
+ case 666 * MHz:
dpll_cfg = (struct pll_div)
{.refdiv = 2, .fbdiv = 111, .postdiv1 = 2, .postdiv2 = 1};
break;
- case 800*MHz:
+ case 800 * MHz:
dpll_cfg = (struct pll_div)
{.refdiv = 1, .fbdiv = 100, .postdiv1 = 3, .postdiv2 = 1};
break;
- case 933*MHz:
+ case 933 * MHz:
dpll_cfg = (struct pll_div)
{.refdiv = 1, .fbdiv = 116, .postdiv1 = 3, .postdiv2 = 1};
break;
@@ -916,7 +917,6 @@ static ulong rk3399_clk_get_rate(struct clk *clk)
case SCLK_UART2:
case SCLK_UART3:
return 24000000;
- break;
case PCLK_HDMI_CTRL:
break;
case DCLK_VOP0:
@@ -1014,7 +1014,8 @@ static ulong rk3399_clk_set_rate(struct clk *clk, ulong rate)
return ret;
}
-static int __maybe_unused rk3399_gmac_set_parent(struct clk *clk, struct clk *parent)
+static int __maybe_unused rk3399_gmac_set_parent(struct clk *clk,
+ struct clk *parent)
{
struct rk3399_clk_priv *priv = dev_get_priv(clk->dev);
const char *clock_output_name;
@@ -1024,7 +1025,7 @@ static int __maybe_unused rk3399_gmac_set_parent(struct clk *clk, struct clk *pa
* If the requested parent is in the same clock-controller and
* the id is SCLK_MAC ("clk_gmac"), switch to the internal clock.
*/
- if ((parent->dev == clk->dev) && (parent->id == SCLK_MAC)) {
+ if (parent->dev == clk->dev && parent->id == SCLK_MAC) {
debug("%s: switching RGMII to SCLK_MAC\n", __func__);
rk_clrreg(&priv->cru->clksel_con[19], BIT(4));
return 0;
@@ -1049,7 +1050,8 @@ static int __maybe_unused rk3399_gmac_set_parent(struct clk *clk, struct clk *pa
return -EINVAL;
}
-static int __maybe_unused rk3399_clk_set_parent(struct clk *clk, struct clk *parent)
+static int __maybe_unused rk3399_clk_set_parent(struct clk *clk,
+ struct clk *parent)
{
switch (clk->id) {
case SCLK_RMII_SRC:
@@ -1078,6 +1080,18 @@ static int rk3399_clk_enable(struct clk *clk)
case PCLK_GMAC:
/* Required to successfully probe the Designware GMAC driver */
return 0;
+
+ case SCLK_USB3OTG0_REF:
+ case SCLK_USB3OTG1_REF:
+ case SCLK_USB3OTG0_SUSPEND:
+ case SCLK_USB3OTG1_SUSPEND:
+ case ACLK_USB3OTG0:
+ case ACLK_USB3OTG1:
+ case ACLK_USB3_RKSOC_AXI_PERF:
+ case ACLK_USB3:
+ case ACLK_USB3_GRF:
+ /* Required to successfully probe the Designware USB3 driver */
+ return 0;
}
debug("%s: unsupported clk %ld\n", __func__, clk->id);
diff --git a/drivers/clk/sifive/Kconfig b/drivers/clk/sifive/Kconfig
index 644881b948..c4d0a1f9b1 100644
--- a/drivers/clk/sifive/Kconfig
+++ b/drivers/clk/sifive/Kconfig
@@ -1,8 +1,5 @@
# SPDX-License-Identifier: GPL-2.0
-config CLK_ANALOGBITS_WRPLL_CLN28HPC
- bool
-
config CLK_SIFIVE
bool "SiFive SoC driver support"
depends on CLK
@@ -17,10 +14,3 @@ config CLK_SIFIVE_FU540_PRCI
Supports the Power Reset Clock interface (PRCI) IP block found in
FU540 SoCs. If this kernel is meant to run on a SiFive FU540 SoC,
enable this driver.
-
-config CLK_SIFIVE_GEMGXL_MGMT
- bool "GEMGXL management for SiFive FU540 SoCs"
- depends on CLK_SIFIVE
- help
- Supports the GEMGXL management IP block found in FU540 SoCs to
- control GEM TX clock operation mode for 10/100/1000 Mbps.
diff --git a/drivers/clk/sifive/Makefile b/drivers/clk/sifive/Makefile
index f8263e79b7..b224279afb 100644
--- a/drivers/clk/sifive/Makefile
+++ b/drivers/clk/sifive/Makefile
@@ -1,7 +1,3 @@
# SPDX-License-Identifier: GPL-2.0+
-obj-$(CONFIG_CLK_ANALOGBITS_WRPLL_CLN28HPC) += wrpll-cln28hpc.o
-
obj-$(CONFIG_CLK_SIFIVE_FU540_PRCI) += fu540-prci.o
-
-obj-$(CONFIG_CLK_SIFIVE_GEMGXL_MGMT) += gemgxl-mgmt.o
diff --git a/drivers/clk/sifive/analogbits-wrpll-cln28hpc.h b/drivers/clk/sifive/analogbits-wrpll-cln28hpc.h
deleted file mode 100644
index 4432e24749..0000000000
--- a/drivers/clk/sifive/analogbits-wrpll-cln28hpc.h
+++ /dev/null
@@ -1,101 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Copyright (c) 2019 Western Digital Corporation or its affiliates.
- *
- * Copyright (C) 2018 SiFive, Inc.
- * Wesley Terpstra
- * Paul Walmsley
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __LINUX_CLK_ANALOGBITS_WRPLL_CLN28HPC_H
-#define __LINUX_CLK_ANALOGBITS_WRPLL_CLN28HPC_H
-
-#include <linux/types.h>
-
-/* DIVQ_VALUES: number of valid DIVQ values */
-#define DIVQ_VALUES 6
-
-/*
- * Bit definitions for struct analogbits_wrpll_cfg.flags
- *
- * WRPLL_FLAGS_BYPASS_FLAG: if set, the PLL is either in bypass, or should be
- * programmed to enter bypass
- * WRPLL_FLAGS_RESET_FLAG: if set, the PLL is in reset
- * WRPLL_FLAGS_INT_FEEDBACK_FLAG: if set, the PLL is configured for internal
- * feedback mode
- * WRPLL_FLAGS_EXT_FEEDBACK_FLAG: if set, the PLL is configured for external
- * feedback mode (not yet supported by this driver)
- *
- * The flags WRPLL_FLAGS_INT_FEEDBACK_FLAG and WRPLL_FLAGS_EXT_FEEDBACK_FLAG are
- * mutually exclusive. If both bits are set, or both are zero, the struct
- * analogbits_wrpll_cfg record is uninitialized or corrupt.
- */
-#define WRPLL_FLAGS_BYPASS_SHIFT 0
-#define WRPLL_FLAGS_BYPASS_MASK BIT(WRPLL_FLAGS_BYPASS_SHIFT)
-#define WRPLL_FLAGS_RESET_SHIFT 1
-#define WRPLL_FLAGS_RESET_MASK BIT(WRPLL_FLAGS_RESET_SHIFT)
-#define WRPLL_FLAGS_INT_FEEDBACK_SHIFT 2
-#define WRPLL_FLAGS_INT_FEEDBACK_MASK BIT(WRPLL_FLAGS_INT_FEEDBACK_SHIFT)
-#define WRPLL_FLAGS_EXT_FEEDBACK_SHIFT 3
-#define WRPLL_FLAGS_EXT_FEEDBACK_MASK BIT(WRPLL_FLAGS_EXT_FEEDBACK_SHIFT)
-
-/**
- * struct analogbits_wrpll_cfg - WRPLL configuration values
- * @divr: reference divider value (6 bits), as presented to the PLL signals.
- * @divf: feedback divider value (9 bits), as presented to the PLL signals.
- * @divq: output divider value (3 bits), as presented to the PLL signals.
- * @flags: PLL configuration flags. See above for more information.
- * @range: PLL loop filter range. See below for more information.
- * @_output_rate_cache: cached output rates, swept across DIVQ.
- * @_parent_rate: PLL refclk rate for which values are valid
- * @_max_r: maximum possible R divider value, given @parent_rate
- * @_init_r: initial R divider value to start the search from
- *
- * @divr, @divq, @divq, @range represent what the PLL expects to see
- * on its input signals. Thus @divr and @divf are the actual divisors
- * minus one. @divq is a power-of-two divider; for example, 1 =
- * divide-by-2 and 6 = divide-by-64. 0 is an invalid @divq value.
- *
- * When initially passing a struct analogbits_wrpll_cfg record, the
- * record should be zero-initialized with the exception of the @flags
- * field. The only flag bits that need to be set are either
- * WRPLL_FLAGS_INT_FEEDBACK or WRPLL_FLAGS_EXT_FEEDBACK.
- *
- * Field names beginning with an underscore should be considered
- * private to the wrpll-cln28hpc.c code.
- */
-struct analogbits_wrpll_cfg {
- u8 divr;
- u8 divq;
- u8 range;
- u8 flags;
- u16 divf;
- u32 _output_rate_cache[DIVQ_VALUES];
- unsigned long _parent_rate;
- u8 _max_r;
- u8 _init_r;
-};
-
-/*
- * Function prototypes
- */
-
-int analogbits_wrpll_configure_for_rate(struct analogbits_wrpll_cfg *c,
- u32 target_rate,
- unsigned long parent_rate);
-
-unsigned int analogbits_wrpll_calc_max_lock_us(struct analogbits_wrpll_cfg *c);
-
-unsigned long analogbits_wrpll_calc_output_rate(struct analogbits_wrpll_cfg *c,
- unsigned long parent_rate);
-
-#endif /* __LINUX_CLK_ANALOGBITS_WRPLL_CLN28HPC_H */
diff --git a/drivers/clk/sifive/fu540-prci.c b/drivers/clk/sifive/fu540-prci.c
index 2d47ebc6b1..ce0769f2d1 100644
--- a/drivers/clk/sifive/fu540-prci.c
+++ b/drivers/clk/sifive/fu540-prci.c
@@ -37,9 +37,8 @@
#include <errno.h>
#include <linux/math64.h>
-#include <dt-bindings/clk/sifive-fu540-prci.h>
-
-#include "analogbits-wrpll-cln28hpc.h"
+#include <linux/clk/analogbits-wrpll-cln28hpc.h>
+#include <dt-bindings/clock/sifive-fu540-prci.h>
/*
* EXPECTED_CLK_PARENT_COUNT: how many parent clocks this driver expects:
@@ -159,30 +158,32 @@
* PRCI per-device instance data
*/
struct __prci_data {
- void *base;
- struct clk parent;
+ void *va;
+ struct clk parent_hfclk;
+ struct clk parent_rtcclk;
};
/**
* struct __prci_wrpll_data - WRPLL configuration and integration data
* @c: WRPLL current configuration record
- * @bypass: fn ptr to code to bypass the WRPLL (if applicable; else NULL)
- * @no_bypass: fn ptr to code to not bypass the WRPLL (if applicable; else NULL)
+ * @enable_bypass: fn ptr to code to bypass the WRPLL (if applicable; else NULL)
+ * @disable_bypass: fn ptr to code to not bypass the WRPLL (or NULL)
* @cfg0_offs: WRPLL CFG0 register offset (in bytes) from the PRCI base address
*
- * @bypass and @no_bypass are used for WRPLL instances that contain a separate
- * external glitchless clock mux downstream from the PLL. The WRPLL internal
- * bypass mux is not glitchless.
+ * @enable_bypass and @disable_bypass are used for WRPLL instances
+ * that contain a separate external glitchless clock mux downstream
+ * from the PLL. The WRPLL internal bypass mux is not glitchless.
*/
struct __prci_wrpll_data {
- struct analogbits_wrpll_cfg c;
- void (*bypass)(struct __prci_data *pd);
- void (*no_bypass)(struct __prci_data *pd);
+ struct wrpll_cfg c;
+ void (*enable_bypass)(struct __prci_data *pd);
+ void (*disable_bypass)(struct __prci_data *pd);
u8 cfg0_offs;
};
struct __prci_clock;
+/* struct __prci_clock_ops - clock operations */
struct __prci_clock_ops {
int (*set_rate)(struct __prci_clock *pc,
unsigned long rate,
@@ -198,8 +199,7 @@ struct __prci_clock_ops {
* struct __prci_clock - describes a clock device managed by PRCI
* @name: user-readable clock name string - should match the manual
* @parent_name: parent name for this clock
- * @ops: struct clk_ops for the Linux clock framework to use for control
- * @hw: Linux-private clock data
+ * @ops: struct __prci_clock_ops for control
* @pwd: WRPLL-specific data, associated with this clock (if not NULL)
* @pd: PRCI-specific data associated with this clock (if not NULL)
*
@@ -233,19 +233,19 @@ struct __prci_clock {
*/
static u32 __prci_readl(struct __prci_data *pd, u32 offs)
{
- return readl(pd->base + offs);
+ return readl(pd->va + offs);
}
static void __prci_writel(u32 v, u32 offs, struct __prci_data *pd)
{
- return writel(v, pd->base + offs);
+ writel(v, pd->va + offs);
}
/* WRPLL-related private functions */
/**
* __prci_wrpll_unpack() - unpack WRPLL configuration registers into parameters
- * @c: ptr to a struct analogbits_wrpll_cfg record to write config into
+ * @c: ptr to a struct wrpll_cfg record to write config into
* @r: value read from the PRCI PLL configuration register
*
* Given a value @r read from an FU540 PRCI PLL configuration register,
@@ -257,7 +257,7 @@ static void __prci_writel(u32 v, u32 offs, struct __prci_data *pd)
*
* Context: Any context.
*/
-static void __prci_wrpll_unpack(struct analogbits_wrpll_cfg *c, u32 r)
+static void __prci_wrpll_unpack(struct wrpll_cfg *c, u32 r)
{
u32 v;
@@ -280,15 +280,13 @@ static void __prci_wrpll_unpack(struct analogbits_wrpll_cfg *c, u32 r)
c->flags &= (WRPLL_FLAGS_INT_FEEDBACK_MASK |
WRPLL_FLAGS_EXT_FEEDBACK_MASK);
- if (r & PRCI_COREPLLCFG0_FSE_MASK)
- c->flags |= WRPLL_FLAGS_INT_FEEDBACK_MASK;
- else
- c->flags |= WRPLL_FLAGS_EXT_FEEDBACK_MASK;
+ /* external feedback mode not supported */
+ c->flags |= WRPLL_FLAGS_INT_FEEDBACK_MASK;
}
/**
* __prci_wrpll_pack() - pack PLL configuration parameters into a register value
- * @c: pointer to a struct analogbits_wrpll_cfg record containing the PLL's cfg
+ * @c: pointer to a struct wrpll_cfg record containing the PLL's cfg
*
* Using a set of WRPLL configuration values pointed to by @c,
* assemble a PRCI PLL configuration register value, and return it to
@@ -301,7 +299,7 @@ static void __prci_wrpll_unpack(struct analogbits_wrpll_cfg *c, u32 r)
* Returns: a value suitable for writing into a PRCI PLL configuration
* register
*/
-static u32 __prci_wrpll_pack(struct analogbits_wrpll_cfg *c)
+static u32 __prci_wrpll_pack(const struct wrpll_cfg *c)
{
u32 r = 0;
@@ -309,8 +307,9 @@ static u32 __prci_wrpll_pack(struct analogbits_wrpll_cfg *c)
r |= c->divf << PRCI_COREPLLCFG0_DIVF_SHIFT;
r |= c->divq << PRCI_COREPLLCFG0_DIVQ_SHIFT;
r |= c->range << PRCI_COREPLLCFG0_RANGE_SHIFT;
- if (c->flags & WRPLL_FLAGS_INT_FEEDBACK_MASK)
- r |= PRCI_COREPLLCFG0_FSE_MASK;
+
+ /* external feedback mode not supported */
+ r |= PRCI_COREPLLCFG0_FSE_MASK;
return r;
}
@@ -349,11 +348,11 @@ static void __prci_wrpll_read_cfg(struct __prci_data *pd,
*/
static void __prci_wrpll_write_cfg(struct __prci_data *pd,
struct __prci_wrpll_data *pwd,
- struct analogbits_wrpll_cfg *c)
+ struct wrpll_cfg *c)
{
__prci_writel(__prci_wrpll_pack(c), pwd->cfg0_offs, pd);
- memcpy(&pwd->c, c, sizeof(struct analogbits_wrpll_cfg));
+ memcpy(&pwd->c, c, sizeof(*c));
}
/* Core clock mux control */
@@ -404,7 +403,7 @@ static unsigned long sifive_fu540_prci_wrpll_recalc_rate(
{
struct __prci_wrpll_data *pwd = pc->pwd;
- return analogbits_wrpll_calc_output_rate(&pwd->c, parent_rate);
+ return wrpll_calc_output_rate(&pwd->c, parent_rate);
}
static unsigned long sifive_fu540_prci_wrpll_round_rate(
@@ -413,13 +412,13 @@ static unsigned long sifive_fu540_prci_wrpll_round_rate(
unsigned long *parent_rate)
{
struct __prci_wrpll_data *pwd = pc->pwd;
- struct analogbits_wrpll_cfg c;
+ struct wrpll_cfg c;
memcpy(&c, &pwd->c, sizeof(c));
- analogbits_wrpll_configure_for_rate(&c, rate, *parent_rate);
+ wrpll_configure_for_rate(&c, rate, *parent_rate);
- return analogbits_wrpll_calc_output_rate(&c, *parent_rate);
+ return wrpll_calc_output_rate(&c, *parent_rate);
}
static int sifive_fu540_prci_wrpll_set_rate(struct __prci_clock *pc,
@@ -430,19 +429,19 @@ static int sifive_fu540_prci_wrpll_set_rate(struct __prci_clock *pc,
struct __prci_data *pd = pc->pd;
int r;
- r = analogbits_wrpll_configure_for_rate(&pwd->c, rate, parent_rate);
+ r = wrpll_configure_for_rate(&pwd->c, rate, parent_rate);
if (r)
- return -ERANGE;
+ return r;
- if (pwd->bypass)
- pwd->bypass(pd);
+ if (pwd->enable_bypass)
+ pwd->enable_bypass(pd);
__prci_wrpll_write_cfg(pd, pwd, &pwd->c);
- udelay(analogbits_wrpll_calc_max_lock_us(&pwd->c));
+ udelay(wrpll_calc_max_lock_us(&pwd->c));
- if (pwd->no_bypass)
- pwd->no_bypass(pd);
+ if (pwd->disable_bypass)
+ pwd->disable_bypass(pd);
return 0;
}
@@ -484,8 +483,8 @@ static const struct __prci_clock_ops sifive_fu540_prci_tlclksel_clk_ops = {
static struct __prci_wrpll_data __prci_corepll_data = {
.cfg0_offs = PRCI_COREPLLCFG0_OFFSET,
- .bypass = __prci_coreclksel_use_hfclk,
- .no_bypass = __prci_coreclksel_use_corepll,
+ .enable_bypass = __prci_coreclksel_use_hfclk,
+ .disable_bypass = __prci_coreclksel_use_corepll,
};
static struct __prci_wrpll_data __prci_ddrpll_data = {
@@ -526,6 +525,27 @@ static struct __prci_clock __prci_init_clocks[] = {
},
};
+static ulong sifive_fu540_prci_parent_rate(struct __prci_clock *pc)
+{
+ ulong parent_rate;
+ struct __prci_clock *p;
+
+ if (strcmp(pc->parent_name, "corepll") == 0) {
+ p = &__prci_init_clocks[PRCI_CLK_COREPLL];
+ if (!p->pd || !p->ops->recalc_rate)
+ return -ENXIO;
+
+ return p->ops->recalc_rate(p, sifive_fu540_prci_parent_rate(p));
+ }
+
+ if (strcmp(pc->parent_name, "rtcclk") == 0)
+ parent_rate = clk_get_rate(&pc->pd->parent_rtcclk);
+ else
+ parent_rate = clk_get_rate(&pc->pd->parent_hfclk);
+
+ return parent_rate;
+}
+
static ulong sifive_fu540_prci_get_rate(struct clk *clk)
{
struct __prci_clock *pc;
@@ -537,7 +557,7 @@ static ulong sifive_fu540_prci_get_rate(struct clk *clk)
if (!pc->pd || !pc->ops->recalc_rate)
return -ENXIO;
- return pc->ops->recalc_rate(pc, clk_get_rate(&pc->pd->parent));
+ return pc->ops->recalc_rate(pc, sifive_fu540_prci_parent_rate(pc));
}
static ulong sifive_fu540_prci_set_rate(struct clk *clk, ulong rate)
@@ -552,7 +572,7 @@ static ulong sifive_fu540_prci_set_rate(struct clk *clk, ulong rate)
if (!pc->pd || !pc->ops->set_rate)
return -ENXIO;
- err = pc->ops->set_rate(pc, rate, clk_get_rate(&pc->pd->parent));
+ err = pc->ops->set_rate(pc, rate, sifive_fu540_prci_parent_rate(pc));
if (err)
return err;
@@ -565,11 +585,15 @@ static int sifive_fu540_prci_probe(struct udevice *dev)
struct __prci_clock *pc;
struct __prci_data *pd = dev_get_priv(dev);
- pd->base = (void *)dev_read_addr(dev);
- if (IS_ERR(pd->base))
- return PTR_ERR(pd->base);
+ pd->va = (void *)dev_read_addr(dev);
+ if (IS_ERR(pd->va))
+ return PTR_ERR(pd->va);
+
+ err = clk_get_by_index(dev, 0, &pd->parent_hfclk);
+ if (err)
+ return err;
- err = clk_get_by_index(dev, 0, &pd->parent);
+ err = clk_get_by_index(dev, 1, &pd->parent_rtcclk);
if (err)
return err;
@@ -589,8 +613,7 @@ static struct clk_ops sifive_fu540_prci_ops = {
};
static const struct udevice_id sifive_fu540_prci_ids[] = {
- { .compatible = "sifive,fu540-c000-prci0" },
- { .compatible = "sifive,aloeprci0" },
+ { .compatible = "sifive,fu540-c000-prci" },
{ }
};
diff --git a/drivers/clk/sifive/gemgxl-mgmt.c b/drivers/clk/sifive/gemgxl-mgmt.c
deleted file mode 100644
index eb37416b5e..0000000000
--- a/drivers/clk/sifive/gemgxl-mgmt.c
+++ /dev/null
@@ -1,60 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (C) 2019, Bin Meng <bmeng.cn@gmail.com>
- */
-
-#include <common.h>
-#include <clk-uclass.h>
-#include <dm.h>
-#include <asm/io.h>
-
-struct gemgxl_mgmt_regs {
- __u32 tx_clk_sel;
-};
-
-struct gemgxl_mgmt_platdata {
- struct gemgxl_mgmt_regs *regs;
-};
-
-static int gemgxl_mgmt_ofdata_to_platdata(struct udevice *dev)
-{
- struct gemgxl_mgmt_platdata *plat = dev_get_platdata(dev);
-
- plat->regs = (struct gemgxl_mgmt_regs *)dev_read_addr(dev);
-
- return 0;
-}
-
-static ulong gemgxl_mgmt_set_rate(struct clk *clk, ulong rate)
-{
- struct gemgxl_mgmt_platdata *plat = dev_get_platdata(clk->dev);
-
- /*
- * GEMGXL TX clock operation mode:
- *
- * 0 = GMII mode. Use 125 MHz gemgxlclk from PRCI in TX logic
- * and output clock on GMII output signal GTX_CLK
- * 1 = MII mode. Use MII input signal TX_CLK in TX logic
- */
- writel(rate != 125000000, &plat->regs->tx_clk_sel);
-
- return 0;
-}
-
-const struct clk_ops gemgxl_mgmt_ops = {
- .set_rate = gemgxl_mgmt_set_rate,
-};
-
-static const struct udevice_id gemgxl_mgmt_match[] = {
- { .compatible = "sifive,cadencegemgxlmgmt0", },
- { /* sentinel */ }
-};
-
-U_BOOT_DRIVER(sifive_gemgxl_mgmt) = {
- .name = "sifive-gemgxl-mgmt",
- .id = UCLASS_CLK,
- .of_match = gemgxl_mgmt_match,
- .ofdata_to_platdata = gemgxl_mgmt_ofdata_to_platdata,
- .platdata_auto_alloc_size = sizeof(struct gemgxl_mgmt_platdata),
- .ops = &gemgxl_mgmt_ops,
-};
generated by cgit (git 2.34.1) at 2024-12-25 02:56:56 +0000