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-rw-r--r--drivers/clk/pxa/Makefile5
-rw-r--r--drivers/clk/pxa/clk-pxa.c244
-rw-r--r--drivers/clk/pxa/clk-pxa.h159
-rw-r--r--drivers/clk/pxa/clk-pxa25x.c361
-rw-r--r--drivers/clk/pxa/clk-pxa27x.c505
-rw-r--r--drivers/clk/pxa/clk-pxa3xx.c368
6 files changed, 1642 insertions, 0 deletions
diff --git a/drivers/clk/pxa/Makefile b/drivers/clk/pxa/Makefile
new file mode 100644
index 000000000..da663c215
--- /dev/null
+++ b/drivers/clk/pxa/Makefile
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-y += clk-pxa.o
+obj-$(CONFIG_PXA25x) += clk-pxa25x.o
+obj-$(CONFIG_PXA27x) += clk-pxa27x.o
+obj-$(CONFIG_PXA3xx) += clk-pxa3xx.o
diff --git a/drivers/clk/pxa/clk-pxa.c b/drivers/clk/pxa/clk-pxa.c
new file mode 100644
index 000000000..cfc79f942
--- /dev/null
+++ b/drivers/clk/pxa/clk-pxa.c
@@ -0,0 +1,244 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Marvell PXA family clocks
+ *
+ * Copyright (C) 2014 Robert Jarzmik
+ *
+ * Common clock code for PXA clocks ("CKEN" type clocks + DT)
+ */
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/io.h>
+#include <linux/of.h>
+
+#include <dt-bindings/clock/pxa-clock.h>
+#include "clk-pxa.h"
+
+#define KHz 1000
+#define MHz (1000 * 1000)
+
+#define MDREFR_K0DB4 (1 << 29) /* SDCLK0 Divide by 4 Control/Status */
+#define MDREFR_K2FREE (1 << 25) /* SDRAM Free-Running Control */
+#define MDREFR_K1FREE (1 << 24) /* SDRAM Free-Running Control */
+#define MDREFR_K0FREE (1 << 23) /* SDRAM Free-Running Control */
+#define MDREFR_SLFRSH (1 << 22) /* SDRAM Self-Refresh Control/Status */
+#define MDREFR_APD (1 << 20) /* SDRAM/SSRAM Auto-Power-Down Enable */
+#define MDREFR_K2DB2 (1 << 19) /* SDCLK2 Divide by 2 Control/Status */
+#define MDREFR_K2RUN (1 << 18) /* SDCLK2 Run Control/Status */
+#define MDREFR_K1DB2 (1 << 17) /* SDCLK1 Divide by 2 Control/Status */
+#define MDREFR_K1RUN (1 << 16) /* SDCLK1 Run Control/Status */
+#define MDREFR_E1PIN (1 << 15) /* SDCKE1 Level Control/Status */
+#define MDREFR_K0DB2 (1 << 14) /* SDCLK0 Divide by 2 Control/Status */
+#define MDREFR_K0RUN (1 << 13) /* SDCLK0 Run Control/Status */
+#define MDREFR_E0PIN (1 << 12) /* SDCKE0 Level Control/Status */
+#define MDREFR_DB2_MASK (MDREFR_K2DB2 | MDREFR_K1DB2)
+#define MDREFR_DRI_MASK 0xFFF
+
+static DEFINE_SPINLOCK(pxa_clk_lock);
+
+static struct clk *pxa_clocks[CLK_MAX];
+static struct clk_onecell_data onecell_data = {
+ .clks = pxa_clocks,
+ .clk_num = CLK_MAX,
+};
+
+struct pxa_clk {
+ struct clk_hw hw;
+ struct clk_fixed_factor lp;
+ struct clk_fixed_factor hp;
+ struct clk_gate gate;
+ bool (*is_in_low_power)(void);
+};
+
+#define to_pxa_clk(_hw) container_of(_hw, struct pxa_clk, hw)
+
+static unsigned long cken_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct pxa_clk *pclk = to_pxa_clk(hw);
+ struct clk_fixed_factor *fix;
+
+ if (!pclk->is_in_low_power || pclk->is_in_low_power())
+ fix = &pclk->lp;
+ else
+ fix = &pclk->hp;
+ __clk_hw_set_clk(&fix->hw, hw);
+ return clk_fixed_factor_ops.recalc_rate(&fix->hw, parent_rate);
+}
+
+static const struct clk_ops cken_rate_ops = {
+ .recalc_rate = cken_recalc_rate,
+};
+
+static u8 cken_get_parent(struct clk_hw *hw)
+{
+ struct pxa_clk *pclk = to_pxa_clk(hw);
+
+ if (!pclk->is_in_low_power)
+ return 0;
+ return pclk->is_in_low_power() ? 0 : 1;
+}
+
+static const struct clk_ops cken_mux_ops = {
+ .get_parent = cken_get_parent,
+ .set_parent = dummy_clk_set_parent,
+};
+
+void __init clkdev_pxa_register(int ckid, const char *con_id,
+ const char *dev_id, struct clk *clk)
+{
+ if (!IS_ERR(clk) && (ckid != CLK_NONE))
+ pxa_clocks[ckid] = clk;
+ if (!IS_ERR(clk))
+ clk_register_clkdev(clk, con_id, dev_id);
+}
+
+int __init clk_pxa_cken_init(const struct desc_clk_cken *clks, int nb_clks)
+{
+ int i;
+ struct pxa_clk *pxa_clk;
+ struct clk *clk;
+
+ for (i = 0; i < nb_clks; i++) {
+ pxa_clk = kzalloc(sizeof(*pxa_clk), GFP_KERNEL);
+ pxa_clk->is_in_low_power = clks[i].is_in_low_power;
+ pxa_clk->lp = clks[i].lp;
+ pxa_clk->hp = clks[i].hp;
+ pxa_clk->gate = clks[i].gate;
+ pxa_clk->gate.lock = &pxa_clk_lock;
+ clk = clk_register_composite(NULL, clks[i].name,
+ clks[i].parent_names, 2,
+ &pxa_clk->hw, &cken_mux_ops,
+ &pxa_clk->hw, &cken_rate_ops,
+ &pxa_clk->gate.hw, &clk_gate_ops,
+ clks[i].flags);
+ clkdev_pxa_register(clks[i].ckid, clks[i].con_id,
+ clks[i].dev_id, clk);
+ }
+ return 0;
+}
+
+void __init clk_pxa_dt_common_init(struct device_node *np)
+{
+ of_clk_add_provider(np, of_clk_src_onecell_get, &onecell_data);
+}
+
+void pxa2xx_core_turbo_switch(bool on)
+{
+ unsigned long flags;
+ unsigned int unused, clkcfg;
+
+ local_irq_save(flags);
+
+ asm("mrc p14, 0, %0, c6, c0, 0" : "=r" (clkcfg));
+ clkcfg &= ~CLKCFG_TURBO & ~CLKCFG_HALFTURBO;
+ if (on)
+ clkcfg |= CLKCFG_TURBO;
+ clkcfg |= CLKCFG_FCS;
+
+ asm volatile(
+ " b 2f\n"
+ " .align 5\n"
+ "1: mcr p14, 0, %1, c6, c0, 0\n"
+ " b 3f\n"
+ "2: b 1b\n"
+ "3: nop\n"
+ : "=&r" (unused) : "r" (clkcfg));
+
+ local_irq_restore(flags);
+}
+
+void pxa2xx_cpll_change(struct pxa2xx_freq *freq,
+ u32 (*mdrefr_dri)(unsigned int), void __iomem *mdrefr,
+ void __iomem *cccr)
+{
+ unsigned int clkcfg = freq->clkcfg;
+ unsigned int unused, preset_mdrefr, postset_mdrefr;
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ /* Calculate the next MDREFR. If we're slowing down the SDRAM clock
+ * we need to preset the smaller DRI before the change. If we're
+ * speeding up we need to set the larger DRI value after the change.
+ */
+ preset_mdrefr = postset_mdrefr = readl(mdrefr);
+ if ((preset_mdrefr & MDREFR_DRI_MASK) > mdrefr_dri(freq->membus_khz)) {
+ preset_mdrefr = (preset_mdrefr & ~MDREFR_DRI_MASK);
+ preset_mdrefr |= mdrefr_dri(freq->membus_khz);
+ }
+ postset_mdrefr =
+ (postset_mdrefr & ~MDREFR_DRI_MASK) |
+ mdrefr_dri(freq->membus_khz);
+
+ /* If we're dividing the memory clock by two for the SDRAM clock, this
+ * must be set prior to the change. Clearing the divide must be done
+ * after the change.
+ */
+ if (freq->div2) {
+ preset_mdrefr |= MDREFR_DB2_MASK;
+ postset_mdrefr |= MDREFR_DB2_MASK;
+ } else {
+ postset_mdrefr &= ~MDREFR_DB2_MASK;
+ }
+
+ /* Set new the CCCR and prepare CLKCFG */
+ writel(freq->cccr, cccr);
+
+ asm volatile(
+ " ldr r4, [%1]\n"
+ " b 2f\n"
+ " .align 5\n"
+ "1: str %3, [%1] /* preset the MDREFR */\n"
+ " mcr p14, 0, %2, c6, c0, 0 /* set CLKCFG[FCS] */\n"
+ " str %4, [%1] /* postset the MDREFR */\n"
+ " b 3f\n"
+ "2: b 1b\n"
+ "3: nop\n"
+ : "=&r" (unused)
+ : "r" (mdrefr), "r" (clkcfg), "r" (preset_mdrefr),
+ "r" (postset_mdrefr)
+ : "r4", "r5");
+
+ local_irq_restore(flags);
+}
+
+int pxa2xx_determine_rate(struct clk_rate_request *req,
+ struct pxa2xx_freq *freqs, int nb_freqs)
+{
+ int i, closest_below = -1, closest_above = -1;
+ unsigned long rate;
+
+ for (i = 0; i < nb_freqs; i++) {
+ rate = freqs[i].cpll;
+ if (rate == req->rate)
+ break;
+ if (rate < req->min_rate)
+ continue;
+ if (rate > req->max_rate)
+ continue;
+ if (rate <= req->rate)
+ closest_below = i;
+ if ((rate >= req->rate) && (closest_above == -1))
+ closest_above = i;
+ }
+
+ req->best_parent_hw = NULL;
+
+ if (i < nb_freqs) {
+ rate = req->rate;
+ } else if (closest_below >= 0) {
+ rate = freqs[closest_below].cpll;
+ } else if (closest_above >= 0) {
+ rate = freqs[closest_above].cpll;
+ } else {
+ pr_debug("%s(rate=%lu) no match\n", __func__, req->rate);
+ return -EINVAL;
+ }
+
+ pr_debug("%s(rate=%lu) rate=%lu\n", __func__, req->rate, rate);
+ req->rate = rate;
+
+ return 0;
+}
diff --git a/drivers/clk/pxa/clk-pxa.h b/drivers/clk/pxa/clk-pxa.h
new file mode 100644
index 000000000..5768e0f72
--- /dev/null
+++ b/drivers/clk/pxa/clk-pxa.h
@@ -0,0 +1,159 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Marvell PXA family clocks
+ *
+ * Copyright (C) 2014 Robert Jarzmik
+ *
+ * Common clock code for PXA clocks ("CKEN" type clocks + DT)
+ */
+#ifndef _CLK_PXA_
+#define _CLK_PXA_
+
+#define CLKCFG_TURBO 0x1
+#define CLKCFG_FCS 0x2
+#define CLKCFG_HALFTURBO 0x4
+#define CLKCFG_FASTBUS 0x8
+
+#define PARENTS(name) \
+ static const char *const name ## _parents[] __initconst
+#define MUX_RO_RATE_RO_OPS(name, clk_name) \
+ static struct clk_hw name ## _mux_hw; \
+ static struct clk_hw name ## _rate_hw; \
+ static const struct clk_ops name ## _mux_ops = { \
+ .get_parent = name ## _get_parent, \
+ .set_parent = dummy_clk_set_parent, \
+ }; \
+ static const struct clk_ops name ## _rate_ops = { \
+ .recalc_rate = name ## _get_rate, \
+ }; \
+ static struct clk * __init clk_register_ ## name(void) \
+ { \
+ return clk_register_composite(NULL, clk_name, \
+ name ## _parents, \
+ ARRAY_SIZE(name ## _parents), \
+ &name ## _mux_hw, &name ## _mux_ops, \
+ &name ## _rate_hw, &name ## _rate_ops, \
+ NULL, NULL, CLK_GET_RATE_NOCACHE); \
+ }
+
+#define RATE_RO_OPS(name, clk_name) \
+ static struct clk_hw name ## _rate_hw; \
+ static const struct clk_ops name ## _rate_ops = { \
+ .recalc_rate = name ## _get_rate, \
+ }; \
+ static struct clk * __init clk_register_ ## name(void) \
+ { \
+ return clk_register_composite(NULL, clk_name, \
+ name ## _parents, \
+ ARRAY_SIZE(name ## _parents), \
+ NULL, NULL, \
+ &name ## _rate_hw, &name ## _rate_ops, \
+ NULL, NULL, CLK_GET_RATE_NOCACHE); \
+ }
+
+#define RATE_OPS(name, clk_name) \
+ static struct clk_hw name ## _rate_hw; \
+ static const struct clk_ops name ## _rate_ops = { \
+ .recalc_rate = name ## _get_rate, \
+ .set_rate = name ## _set_rate, \
+ .determine_rate = name ## _determine_rate, \
+ }; \
+ static struct clk * __init clk_register_ ## name(void) \
+ { \
+ return clk_register_composite(NULL, clk_name, \
+ name ## _parents, \
+ ARRAY_SIZE(name ## _parents), \
+ NULL, NULL, \
+ &name ## _rate_hw, &name ## _rate_ops, \
+ NULL, NULL, CLK_GET_RATE_NOCACHE); \
+ }
+
+#define MUX_OPS(name, clk_name, flags) \
+ static struct clk_hw name ## _mux_hw; \
+ static const struct clk_ops name ## _mux_ops = { \
+ .get_parent = name ## _get_parent, \
+ .set_parent = name ## _set_parent, \
+ .determine_rate = name ## _determine_rate, \
+ }; \
+ static struct clk * __init clk_register_ ## name(void) \
+ { \
+ return clk_register_composite(NULL, clk_name, \
+ name ## _parents, \
+ ARRAY_SIZE(name ## _parents), \
+ &name ## _mux_hw, &name ## _mux_ops, \
+ NULL, NULL, \
+ NULL, NULL, \
+ CLK_GET_RATE_NOCACHE | flags); \
+ }
+
+/*
+ * CKEN clock type
+ * This clock takes it source from 2 possible parents :
+ * - a low power parent
+ * - a normal parent
+ *
+ * +------------+ +-----------+
+ * | Low Power | --- | x mult_lp |
+ * | Clock | | / div_lp |\
+ * +------------+ +-----------+ \+-----+ +-----------+
+ * | Mux |---| CKEN gate |
+ * +------------+ +-----------+ /+-----+ +-----------+
+ * | High Power | | x mult_hp |/
+ * | Clock | --- | / div_hp |
+ * +------------+ +-----------+
+ */
+struct desc_clk_cken {
+ struct clk_hw hw;
+ int ckid;
+ const char *name;
+ const char *dev_id;
+ const char *con_id;
+ const char * const *parent_names;
+ struct clk_fixed_factor lp;
+ struct clk_fixed_factor hp;
+ struct clk_gate gate;
+ bool (*is_in_low_power)(void);
+ const unsigned long flags;
+};
+
+#define PXA_CKEN(_dev_id, _con_id, _name, parents, _mult_lp, _div_lp, \
+ _mult_hp, _div_hp, is_lp, _cken_reg, _cken_bit, flag) \
+ { .ckid = CLK_ ## _name, .name = #_name, \
+ .dev_id = _dev_id, .con_id = _con_id, .parent_names = parents,\
+ .lp = { .mult = _mult_lp, .div = _div_lp }, \
+ .hp = { .mult = _mult_hp, .div = _div_hp }, \
+ .is_in_low_power = is_lp, \
+ .gate = { .reg = (void __iomem *)_cken_reg, .bit_idx = _cken_bit }, \
+ .flags = flag, \
+ }
+#define PXA_CKEN_1RATE(dev_id, con_id, name, parents, cken_reg, \
+ cken_bit, flag) \
+ PXA_CKEN(dev_id, con_id, name, parents, 1, 1, 1, 1, \
+ NULL, cken_reg, cken_bit, flag)
+
+struct pxa2xx_freq {
+ unsigned long cpll;
+ unsigned int membus_khz;
+ unsigned int cccr;
+ unsigned int div2;
+ unsigned int clkcfg;
+};
+
+static inline int dummy_clk_set_parent(struct clk_hw *hw, u8 index)
+{
+ return 0;
+}
+
+extern void clkdev_pxa_register(int ckid, const char *con_id,
+ const char *dev_id, struct clk *clk);
+extern int clk_pxa_cken_init(const struct desc_clk_cken *clks, int nb_clks);
+void clk_pxa_dt_common_init(struct device_node *np);
+
+void pxa2xx_core_turbo_switch(bool on);
+void pxa2xx_cpll_change(struct pxa2xx_freq *freq,
+ u32 (*mdrefr_dri)(unsigned int), void __iomem *mdrefr,
+ void __iomem *cccr);
+int pxa2xx_determine_rate(struct clk_rate_request *req,
+ struct pxa2xx_freq *freqs, int nb_freqs);
+
+#endif
diff --git a/drivers/clk/pxa/clk-pxa25x.c b/drivers/clk/pxa/clk-pxa25x.c
new file mode 100644
index 000000000..d0f957996
--- /dev/null
+++ b/drivers/clk/pxa/clk-pxa25x.c
@@ -0,0 +1,361 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Marvell PXA25x family clocks
+ *
+ * Copyright (C) 2014 Robert Jarzmik
+ *
+ * Heavily inspired from former arch/arm/mach-pxa/pxa25x.c.
+ *
+ * For non-devicetree platforms. Once pxa is fully converted to devicetree, this
+ * should go away.
+ */
+#include <linux/clk-provider.h>
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <mach/pxa2xx-regs.h>
+#include <mach/smemc.h>
+
+#include <dt-bindings/clock/pxa-clock.h>
+#include "clk-pxa.h"
+
+#define KHz 1000
+#define MHz (1000 * 1000)
+
+enum {
+ PXA_CORE_RUN = 0,
+ PXA_CORE_TURBO,
+};
+
+#define PXA25x_CLKCFG(T) \
+ (CLKCFG_FCS | \
+ ((T) ? CLKCFG_TURBO : 0))
+#define PXA25x_CCCR(N2, M, L) (N2 << 7 | M << 5 | L)
+
+#define MDCNFG_DRAC2(mdcnfg) (((mdcnfg) >> 21) & 0x3)
+#define MDCNFG_DRAC0(mdcnfg) (((mdcnfg) >> 5) & 0x3)
+
+/* Define the refresh period in mSec for the SDRAM and the number of rows */
+#define SDRAM_TREF 64 /* standard 64ms SDRAM */
+
+/*
+ * Various clock factors driven by the CCCR register.
+ */
+
+/* Crystal Frequency to Memory Frequency Multiplier (L) */
+static unsigned char L_clk_mult[32] = { 0, 27, 32, 36, 40, 45, 0, };
+
+/* Memory Frequency to Run Mode Frequency Multiplier (M) */
+static unsigned char M_clk_mult[4] = { 0, 1, 2, 4 };
+
+/* Run Mode Frequency to Turbo Mode Frequency Multiplier (N) */
+/* Note: we store the value N * 2 here. */
+static unsigned char N2_clk_mult[8] = { 0, 0, 2, 3, 4, 0, 6, 0 };
+
+static const char * const get_freq_khz[] = {
+ "core", "run", "cpll", "memory"
+};
+
+static int get_sdram_rows(void)
+{
+ static int sdram_rows;
+ unsigned int drac2 = 0, drac0 = 0;
+ u32 mdcnfg;
+
+ if (sdram_rows)
+ return sdram_rows;
+
+ mdcnfg = readl_relaxed(MDCNFG);
+
+ if (mdcnfg & (MDCNFG_DE2 | MDCNFG_DE3))
+ drac2 = MDCNFG_DRAC2(mdcnfg);
+
+ if (mdcnfg & (MDCNFG_DE0 | MDCNFG_DE1))
+ drac0 = MDCNFG_DRAC0(mdcnfg);
+
+ sdram_rows = 1 << (11 + max(drac0, drac2));
+ return sdram_rows;
+}
+
+static u32 mdrefr_dri(unsigned int freq_khz)
+{
+ u32 interval = freq_khz * SDRAM_TREF / get_sdram_rows();
+
+ return interval / 32;
+}
+
+/*
+ * Get the clock frequency as reflected by CCCR and the turbo flag.
+ * We assume these values have been applied via a fcs.
+ * If info is not 0 we also display the current settings.
+ */
+unsigned int pxa25x_get_clk_frequency_khz(int info)
+{
+ struct clk *clk;
+ unsigned long clks[5];
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(get_freq_khz); i++) {
+ clk = clk_get(NULL, get_freq_khz[i]);
+ if (IS_ERR(clk)) {
+ clks[i] = 0;
+ } else {
+ clks[i] = clk_get_rate(clk);
+ clk_put(clk);
+ }
+ }
+
+ if (info) {
+ pr_info("Run Mode clock: %ld.%02ldMHz\n",
+ clks[1] / 1000000, (clks[1] % 1000000) / 10000);
+ pr_info("Turbo Mode clock: %ld.%02ldMHz\n",
+ clks[2] / 1000000, (clks[2] % 1000000) / 10000);
+ pr_info("Memory clock: %ld.%02ldMHz\n",
+ clks[3] / 1000000, (clks[3] % 1000000) / 10000);
+ }
+
+ return (unsigned int)clks[0] / KHz;
+}
+
+static unsigned long clk_pxa25x_memory_get_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ unsigned long cccr = readl(CCCR);
+ unsigned int m = M_clk_mult[(cccr >> 5) & 0x03];
+
+ return parent_rate / m;
+}
+PARENTS(clk_pxa25x_memory) = { "run" };
+RATE_RO_OPS(clk_pxa25x_memory, "memory");
+
+PARENTS(pxa25x_pbus95) = { "ppll_95_85mhz", "ppll_95_85mhz" };
+PARENTS(pxa25x_pbus147) = { "ppll_147_46mhz", "ppll_147_46mhz" };
+PARENTS(pxa25x_osc3) = { "osc_3_6864mhz", "osc_3_6864mhz" };
+
+#define PXA25X_CKEN(dev_id, con_id, parents, mult, div, \
+ bit, is_lp, flags) \
+ PXA_CKEN(dev_id, con_id, bit, parents, mult, div, mult, div, \
+ is_lp, CKEN, CKEN_ ## bit, flags)
+#define PXA25X_PBUS95_CKEN(dev_id, con_id, bit, mult_hp, div_hp, delay) \
+ PXA25X_CKEN(dev_id, con_id, pxa25x_pbus95_parents, mult_hp, \
+ div_hp, bit, NULL, 0)
+#define PXA25X_PBUS147_CKEN(dev_id, con_id, bit, mult_hp, div_hp, delay)\
+ PXA25X_CKEN(dev_id, con_id, pxa25x_pbus147_parents, mult_hp, \
+ div_hp, bit, NULL, 0)
+#define PXA25X_OSC3_CKEN(dev_id, con_id, bit, mult_hp, div_hp, delay) \
+ PXA25X_CKEN(dev_id, con_id, pxa25x_osc3_parents, mult_hp, \
+ div_hp, bit, NULL, 0)
+
+#define PXA25X_CKEN_1RATE(dev_id, con_id, bit, parents, delay) \
+ PXA_CKEN_1RATE(dev_id, con_id, bit, parents, \
+ CKEN, CKEN_ ## bit, 0)
+#define PXA25X_CKEN_1RATE_AO(dev_id, con_id, bit, parents, delay) \
+ PXA_CKEN_1RATE(dev_id, con_id, bit, parents, \
+ CKEN, CKEN_ ## bit, CLK_IGNORE_UNUSED)
+
+static struct desc_clk_cken pxa25x_clocks[] __initdata = {
+ PXA25X_PBUS95_CKEN("pxa2xx-mci.0", NULL, MMC, 1, 5, 0),
+ PXA25X_PBUS95_CKEN("pxa2xx-i2c.0", NULL, I2C, 1, 3, 0),
+ PXA25X_PBUS95_CKEN("pxa2xx-ir", "FICPCLK", FICP, 1, 2, 0),
+ PXA25X_PBUS95_CKEN("pxa25x-udc", NULL, USB, 1, 2, 5),
+ PXA25X_PBUS147_CKEN("pxa2xx-uart.0", NULL, FFUART, 1, 10, 1),
+ PXA25X_PBUS147_CKEN("pxa2xx-uart.1", NULL, BTUART, 1, 10, 1),
+ PXA25X_PBUS147_CKEN("pxa2xx-uart.2", NULL, STUART, 1, 10, 1),
+ PXA25X_PBUS147_CKEN("pxa2xx-uart.3", NULL, HWUART, 1, 10, 1),
+ PXA25X_PBUS147_CKEN("pxa2xx-i2s", NULL, I2S, 1, 10, 0),
+ PXA25X_PBUS147_CKEN(NULL, "AC97CLK", AC97, 1, 12, 0),
+ PXA25X_OSC3_CKEN("pxa25x-ssp.0", NULL, SSP, 1, 1, 0),
+ PXA25X_OSC3_CKEN("pxa25x-nssp.1", NULL, NSSP, 1, 1, 0),
+ PXA25X_OSC3_CKEN("pxa25x-nssp.2", NULL, ASSP, 1, 1, 0),
+ PXA25X_OSC3_CKEN("pxa25x-pwm.0", NULL, PWM0, 1, 1, 0),
+ PXA25X_OSC3_CKEN("pxa25x-pwm.1", NULL, PWM1, 1, 1, 0),
+
+ PXA25X_CKEN_1RATE("pxa2xx-fb", NULL, LCD, clk_pxa25x_memory_parents, 0),
+ PXA25X_CKEN_1RATE_AO("pxa2xx-pcmcia", NULL, MEMC,
+ clk_pxa25x_memory_parents, 0),
+};
+
+/*
+ * In this table, PXA25x_CCCR(N2, M, L) has the following meaning, where :
+ * - freq_cpll = n * m * L * 3.6864 MHz
+ * - n = N2 / 2
+ * - m = 2^(M - 1), where 1 <= M <= 3
+ * - l = L_clk_mult[L], ie. { 0, 27, 32, 36, 40, 45, 0, }[L]
+ */
+static struct pxa2xx_freq pxa25x_freqs[] = {
+ /* CPU MEMBUS CCCR DIV2 CCLKCFG */
+ { 99532800, 99500, PXA25x_CCCR(2, 1, 1), 1, PXA25x_CLKCFG(1)},
+ {199065600, 99500, PXA25x_CCCR(4, 1, 1), 0, PXA25x_CLKCFG(1)},
+ {298598400, 99500, PXA25x_CCCR(3, 2, 1), 0, PXA25x_CLKCFG(1)},
+ {398131200, 99500, PXA25x_CCCR(4, 2, 1), 0, PXA25x_CLKCFG(1)},
+};
+
+static u8 clk_pxa25x_core_get_parent(struct clk_hw *hw)
+{
+ unsigned long clkcfg;
+ unsigned int t;
+
+ asm("mrc\tp14, 0, %0, c6, c0, 0" : "=r" (clkcfg));
+ t = clkcfg & (1 << 0);
+ if (t)
+ return PXA_CORE_TURBO;
+ return PXA_CORE_RUN;
+}
+
+static int clk_pxa25x_core_set_parent(struct clk_hw *hw, u8 index)
+{
+ if (index > PXA_CORE_TURBO)
+ return -EINVAL;
+
+ pxa2xx_core_turbo_switch(index == PXA_CORE_TURBO);
+
+ return 0;
+}
+
+static int clk_pxa25x_core_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
+{
+ return __clk_mux_determine_rate(hw, req);
+}
+
+PARENTS(clk_pxa25x_core) = { "run", "cpll" };
+MUX_OPS(clk_pxa25x_core, "core", CLK_SET_RATE_PARENT);
+
+static unsigned long clk_pxa25x_run_get_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ unsigned long cccr = readl(CCCR);
+ unsigned int n2 = N2_clk_mult[(cccr >> 7) & 0x07];
+
+ return (parent_rate / n2) * 2;
+}
+PARENTS(clk_pxa25x_run) = { "cpll" };
+RATE_RO_OPS(clk_pxa25x_run, "run");
+
+static unsigned long clk_pxa25x_cpll_get_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ unsigned long clkcfg, cccr = readl(CCCR);
+ unsigned int l, m, n2, t;
+
+ asm("mrc\tp14, 0, %0, c6, c0, 0" : "=r" (clkcfg));
+ t = clkcfg & (1 << 0);
+ l = L_clk_mult[(cccr >> 0) & 0x1f];
+ m = M_clk_mult[(cccr >> 5) & 0x03];
+ n2 = N2_clk_mult[(cccr >> 7) & 0x07];
+
+ return m * l * n2 * parent_rate / 2;
+}
+
+static int clk_pxa25x_cpll_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
+{
+ return pxa2xx_determine_rate(req, pxa25x_freqs,
+ ARRAY_SIZE(pxa25x_freqs));
+}
+
+static int clk_pxa25x_cpll_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ int i;
+
+ pr_debug("%s(rate=%lu parent_rate=%lu)\n", __func__, rate, parent_rate);
+ for (i = 0; i < ARRAY_SIZE(pxa25x_freqs); i++)
+ if (pxa25x_freqs[i].cpll == rate)
+ break;
+
+ if (i >= ARRAY_SIZE(pxa25x_freqs))
+ return -EINVAL;
+
+ pxa2xx_cpll_change(&pxa25x_freqs[i], mdrefr_dri, MDREFR, CCCR);
+
+ return 0;
+}
+PARENTS(clk_pxa25x_cpll) = { "osc_3_6864mhz" };
+RATE_OPS(clk_pxa25x_cpll, "cpll");
+
+static void __init pxa25x_register_core(void)
+{
+ clkdev_pxa_register(CLK_NONE, "cpll", NULL,
+ clk_register_clk_pxa25x_cpll());
+ clkdev_pxa_register(CLK_NONE, "run", NULL,
+ clk_register_clk_pxa25x_run());
+ clkdev_pxa_register(CLK_CORE, "core", NULL,
+ clk_register_clk_pxa25x_core());
+}
+
+static void __init pxa25x_register_plls(void)
+{
+ clk_register_fixed_rate(NULL, "osc_3_6864mhz", NULL,
+ CLK_GET_RATE_NOCACHE, 3686400);
+ clkdev_pxa_register(CLK_OSC32k768, "osc_32_768khz", NULL,
+ clk_register_fixed_rate(NULL, "osc_32_768khz", NULL,
+ CLK_GET_RATE_NOCACHE,
+ 32768));
+ clk_register_fixed_rate(NULL, "clk_dummy", NULL, 0, 0);
+ clk_register_fixed_factor(NULL, "ppll_95_85mhz", "osc_3_6864mhz",
+ 0, 26, 1);
+ clk_register_fixed_factor(NULL, "ppll_147_46mhz", "osc_3_6864mhz",
+ 0, 40, 1);
+}
+
+static void __init pxa25x_base_clocks_init(void)
+{
+ pxa25x_register_plls();
+ pxa25x_register_core();
+ clkdev_pxa_register(CLK_NONE, "system_bus", NULL,
+ clk_register_clk_pxa25x_memory());
+}
+
+#define DUMMY_CLK(_con_id, _dev_id, _parent) \
+ { .con_id = _con_id, .dev_id = _dev_id, .parent = _parent }
+struct dummy_clk {
+ const char *con_id;
+ const char *dev_id;
+ const char *parent;
+};
+static struct dummy_clk dummy_clks[] __initdata = {
+ DUMMY_CLK(NULL, "pxa25x-gpio", "osc_32_768khz"),
+ DUMMY_CLK(NULL, "pxa26x-gpio", "osc_32_768khz"),
+ DUMMY_CLK("GPIO11_CLK", NULL, "osc_3_6864mhz"),
+ DUMMY_CLK("GPIO12_CLK", NULL, "osc_32_768khz"),
+ DUMMY_CLK(NULL, "sa1100-rtc", "osc_32_768khz"),
+ DUMMY_CLK("OSTIMER0", NULL, "osc_3_6864mhz"),
+ DUMMY_CLK("UARTCLK", "pxa2xx-ir", "STUART"),
+};
+
+static void __init pxa25x_dummy_clocks_init(void)
+{
+ struct clk *clk;
+ struct dummy_clk *d;
+ const char *name;
+ int i;
+
+ /*
+ * All pinctrl logic has been wiped out of the clock driver, especially
+ * for gpio11 and gpio12 outputs. Machine code should ensure proper pin
+ * control (ie. pxa2xx_mfp_config() invocation).
+ */
+ for (i = 0; i < ARRAY_SIZE(dummy_clks); i++) {
+ d = &dummy_clks[i];
+ name = d->dev_id ? d->dev_id : d->con_id;
+ clk = clk_register_fixed_factor(NULL, name, d->parent, 0, 1, 1);
+ clk_register_clkdev(clk, d->con_id, d->dev_id);
+ }
+}
+
+int __init pxa25x_clocks_init(void)
+{
+ pxa25x_base_clocks_init();
+ pxa25x_dummy_clocks_init();
+ return clk_pxa_cken_init(pxa25x_clocks, ARRAY_SIZE(pxa25x_clocks));
+}
+
+static void __init pxa25x_dt_clocks_init(struct device_node *np)
+{
+ pxa25x_clocks_init();
+ clk_pxa_dt_common_init(np);
+}
+CLK_OF_DECLARE(pxa25x_clks, "marvell,pxa250-core-clocks",
+ pxa25x_dt_clocks_init);
diff --git a/drivers/clk/pxa/clk-pxa27x.c b/drivers/clk/pxa/clk-pxa27x.c
new file mode 100644
index 000000000..7b123105b
--- /dev/null
+++ b/drivers/clk/pxa/clk-pxa27x.c
@@ -0,0 +1,505 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Marvell PXA27x family clocks
+ *
+ * Copyright (C) 2014 Robert Jarzmik
+ *
+ * Heavily inspired from former arch/arm/mach-pxa/clock.c.
+ */
+#include <linux/clk-provider.h>
+#include <mach/pxa2xx-regs.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/of.h>
+
+#include <mach/smemc.h>
+
+#include <dt-bindings/clock/pxa-clock.h>
+#include "clk-pxa.h"
+
+#define KHz 1000
+#define MHz (1000 * 1000)
+
+enum {
+ PXA_CORE_13Mhz = 0,
+ PXA_CORE_RUN,
+ PXA_CORE_TURBO,
+};
+
+enum {
+ PXA_BUS_13Mhz = 0,
+ PXA_BUS_RUN,
+};
+
+enum {
+ PXA_LCD_13Mhz = 0,
+ PXA_LCD_RUN,
+};
+
+enum {
+ PXA_MEM_13Mhz = 0,
+ PXA_MEM_SYSTEM_BUS,
+ PXA_MEM_RUN,
+};
+
+#define PXA27x_CLKCFG(B, HT, T) \
+ (CLKCFG_FCS | \
+ ((B) ? CLKCFG_FASTBUS : 0) | \
+ ((HT) ? CLKCFG_HALFTURBO : 0) | \
+ ((T) ? CLKCFG_TURBO : 0))
+#define PXA27x_CCCR(A, L, N2) (A << 25 | N2 << 7 | L)
+
+#define MDCNFG_DRAC2(mdcnfg) (((mdcnfg) >> 21) & 0x3)
+#define MDCNFG_DRAC0(mdcnfg) (((mdcnfg) >> 5) & 0x3)
+
+/* Define the refresh period in mSec for the SDRAM and the number of rows */
+#define SDRAM_TREF 64 /* standard 64ms SDRAM */
+
+static const char * const get_freq_khz[] = {
+ "core", "run", "cpll", "memory",
+ "system_bus"
+};
+
+static int get_sdram_rows(void)
+{
+ static int sdram_rows;
+ unsigned int drac2 = 0, drac0 = 0;
+ u32 mdcnfg;
+
+ if (sdram_rows)
+ return sdram_rows;
+
+ mdcnfg = readl_relaxed(MDCNFG);
+
+ if (mdcnfg & (MDCNFG_DE2 | MDCNFG_DE3))
+ drac2 = MDCNFG_DRAC2(mdcnfg);
+
+ if (mdcnfg & (MDCNFG_DE0 | MDCNFG_DE1))
+ drac0 = MDCNFG_DRAC0(mdcnfg);
+
+ sdram_rows = 1 << (11 + max(drac0, drac2));
+ return sdram_rows;
+}
+
+static u32 mdrefr_dri(unsigned int freq_khz)
+{
+ u32 interval = freq_khz * SDRAM_TREF / get_sdram_rows();
+
+ return (interval - 31) / 32;
+}
+
+/*
+ * Get the clock frequency as reflected by CCSR and the turbo flag.
+ * We assume these values have been applied via a fcs.
+ * If info is not 0 we also display the current settings.
+ */
+unsigned int pxa27x_get_clk_frequency_khz(int info)
+{
+ struct clk *clk;
+ unsigned long clks[5];
+ int i;
+
+ for (i = 0; i < 5; i++) {
+ clk = clk_get(NULL, get_freq_khz[i]);
+ if (IS_ERR(clk)) {
+ clks[i] = 0;
+ } else {
+ clks[i] = clk_get_rate(clk);
+ clk_put(clk);
+ }
+ }
+ if (info) {
+ pr_info("Run Mode clock: %ld.%02ldMHz\n",
+ clks[1] / 1000000, (clks[1] % 1000000) / 10000);
+ pr_info("Turbo Mode clock: %ld.%02ldMHz\n",
+ clks[2] / 1000000, (clks[2] % 1000000) / 10000);
+ pr_info("Memory clock: %ld.%02ldMHz\n",
+ clks[3] / 1000000, (clks[3] % 1000000) / 10000);
+ pr_info("System bus clock: %ld.%02ldMHz\n",
+ clks[4] / 1000000, (clks[4] % 1000000) / 10000);
+ }
+ return (unsigned int)clks[0] / KHz;
+}
+
+bool pxa27x_is_ppll_disabled(void)
+{
+ unsigned long ccsr = readl(CCSR);
+
+ return ccsr & (1 << CCCR_PPDIS_BIT);
+}
+
+#define PXA27X_CKEN(dev_id, con_id, parents, mult_hp, div_hp, \
+ bit, is_lp, flags) \
+ PXA_CKEN(dev_id, con_id, bit, parents, 1, 1, mult_hp, div_hp, \
+ is_lp, CKEN, CKEN_ ## bit, flags)
+#define PXA27X_PBUS_CKEN(dev_id, con_id, bit, mult_hp, div_hp, delay) \
+ PXA27X_CKEN(dev_id, con_id, pxa27x_pbus_parents, mult_hp, \
+ div_hp, bit, pxa27x_is_ppll_disabled, 0)
+
+PARENTS(pxa27x_pbus) = { "osc_13mhz", "ppll_312mhz" };
+PARENTS(pxa27x_sbus) = { "system_bus", "system_bus" };
+PARENTS(pxa27x_32Mhz_bus) = { "osc_32_768khz", "osc_32_768khz" };
+PARENTS(pxa27x_lcd_bus) = { "lcd_base", "lcd_base" };
+PARENTS(pxa27x_membus) = { "lcd_base", "lcd_base" };
+
+#define PXA27X_CKEN_1RATE(dev_id, con_id, bit, parents, delay) \
+ PXA_CKEN_1RATE(dev_id, con_id, bit, parents, \
+ CKEN, CKEN_ ## bit, 0)
+#define PXA27X_CKEN_1RATE_AO(dev_id, con_id, bit, parents, delay) \
+ PXA_CKEN_1RATE(dev_id, con_id, bit, parents, \
+ CKEN, CKEN_ ## bit, CLK_IGNORE_UNUSED)
+
+static struct desc_clk_cken pxa27x_clocks[] __initdata = {
+ PXA27X_PBUS_CKEN("pxa2xx-uart.0", NULL, FFUART, 2, 42, 1),
+ PXA27X_PBUS_CKEN("pxa2xx-uart.1", NULL, BTUART, 2, 42, 1),
+ PXA27X_PBUS_CKEN("pxa2xx-uart.2", NULL, STUART, 2, 42, 1),
+ PXA27X_PBUS_CKEN("pxa2xx-i2s", NULL, I2S, 2, 51, 0),
+ PXA27X_PBUS_CKEN("pxa2xx-i2c.0", NULL, I2C, 2, 19, 0),
+ PXA27X_PBUS_CKEN("pxa27x-udc", NULL, USB, 2, 13, 5),
+ PXA27X_PBUS_CKEN("pxa2xx-mci.0", NULL, MMC, 2, 32, 0),
+ PXA27X_PBUS_CKEN("pxa2xx-ir", "FICPCLK", FICP, 2, 13, 0),
+ PXA27X_PBUS_CKEN("pxa27x-ohci", NULL, USBHOST, 2, 13, 0),
+ PXA27X_PBUS_CKEN("pxa2xx-i2c.1", NULL, PWRI2C, 1, 24, 0),
+ PXA27X_PBUS_CKEN("pxa27x-ssp.0", NULL, SSP1, 1, 24, 0),
+ PXA27X_PBUS_CKEN("pxa27x-ssp.1", NULL, SSP2, 1, 24, 0),
+ PXA27X_PBUS_CKEN("pxa27x-ssp.2", NULL, SSP3, 1, 24, 0),
+ PXA27X_PBUS_CKEN("pxa27x-pwm.0", NULL, PWM0, 1, 24, 0),
+ PXA27X_PBUS_CKEN("pxa27x-pwm.1", NULL, PWM1, 1, 24, 0),
+ PXA27X_PBUS_CKEN(NULL, "MSLCLK", MSL, 2, 13, 0),
+ PXA27X_PBUS_CKEN(NULL, "USIMCLK", USIM, 2, 13, 0),
+ PXA27X_PBUS_CKEN(NULL, "MSTKCLK", MEMSTK, 2, 32, 0),
+ PXA27X_PBUS_CKEN(NULL, "AC97CLK", AC97, 1, 1, 0),
+ PXA27X_PBUS_CKEN(NULL, "AC97CONFCLK", AC97CONF, 1, 1, 0),
+ PXA27X_PBUS_CKEN(NULL, "OSTIMER0", OSTIMER, 1, 96, 0),
+
+ PXA27X_CKEN_1RATE("pxa27x-keypad", NULL, KEYPAD,
+ pxa27x_32Mhz_bus_parents, 0),
+ PXA27X_CKEN_1RATE(NULL, "IMCLK", IM, pxa27x_sbus_parents, 0),
+ PXA27X_CKEN_1RATE("pxa2xx-fb", NULL, LCD, pxa27x_lcd_bus_parents, 0),
+ PXA27X_CKEN_1RATE("pxa27x-camera.0", NULL, CAMERA,
+ pxa27x_lcd_bus_parents, 0),
+ PXA27X_CKEN_1RATE_AO("pxa2xx-pcmcia", NULL, MEMC,
+ pxa27x_membus_parents, 0),
+
+};
+
+/*
+ * PXA270 definitions
+ *
+ * For the PXA27x:
+ * Control variables are A, L, 2N for CCCR; B, HT, T for CLKCFG.
+ *
+ * A = 0 => memory controller clock from table 3-7,
+ * A = 1 => memory controller clock = system bus clock
+ * Run mode frequency = 13 MHz * L
+ * Turbo mode frequency = 13 MHz * L * N
+ * System bus frequency = 13 MHz * L / (B + 1)
+ *
+ * In CCCR:
+ * A = 1
+ * L = 16 oscillator to run mode ratio
+ * 2N = 6 2 * (turbo mode to run mode ratio)
+ *
+ * In CCLKCFG:
+ * B = 1 Fast bus mode
+ * HT = 0 Half-Turbo mode
+ * T = 1 Turbo mode
+ *
+ * For now, just support some of the combinations in table 3-7 of
+ * PXA27x Processor Family Developer's Manual to simplify frequency
+ * change sequences.
+ */
+static struct pxa2xx_freq pxa27x_freqs[] = {
+ {104000000, 104000, PXA27x_CCCR(1, 8, 2), 0, PXA27x_CLKCFG(1, 0, 1) },
+ {156000000, 104000, PXA27x_CCCR(1, 8, 3), 0, PXA27x_CLKCFG(1, 0, 1) },
+ {208000000, 208000, PXA27x_CCCR(0, 16, 2), 1, PXA27x_CLKCFG(0, 0, 1) },
+ {312000000, 208000, PXA27x_CCCR(1, 16, 3), 1, PXA27x_CLKCFG(1, 0, 1) },
+ {416000000, 208000, PXA27x_CCCR(1, 16, 4), 1, PXA27x_CLKCFG(1, 0, 1) },
+ {520000000, 208000, PXA27x_CCCR(1, 16, 5), 1, PXA27x_CLKCFG(1, 0, 1) },
+ {624000000, 208000, PXA27x_CCCR(1, 16, 6), 1, PXA27x_CLKCFG(1, 0, 1) },
+};
+
+static unsigned long clk_pxa27x_cpll_get_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ unsigned long clkcfg;
+ unsigned int t, ht;
+ unsigned int l, L, n2, N;
+ unsigned long ccsr = readl(CCSR);
+
+ asm("mrc\tp14, 0, %0, c6, c0, 0" : "=r" (clkcfg));
+ t = clkcfg & (1 << 0);
+ ht = clkcfg & (1 << 2);
+
+ l = ccsr & CCSR_L_MASK;
+ n2 = (ccsr & CCSR_N2_MASK) >> CCSR_N2_SHIFT;
+ L = l * parent_rate;
+ N = (L * n2) / 2;
+
+ return N;
+}
+
+static int clk_pxa27x_cpll_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
+{
+ return pxa2xx_determine_rate(req, pxa27x_freqs,
+ ARRAY_SIZE(pxa27x_freqs));
+}
+
+static int clk_pxa27x_cpll_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ int i;
+
+ pr_debug("%s(rate=%lu parent_rate=%lu)\n", __func__, rate, parent_rate);
+ for (i = 0; i < ARRAY_SIZE(pxa27x_freqs); i++)
+ if (pxa27x_freqs[i].cpll == rate)
+ break;
+
+ if (i >= ARRAY_SIZE(pxa27x_freqs))
+ return -EINVAL;
+
+ pxa2xx_cpll_change(&pxa27x_freqs[i], mdrefr_dri, MDREFR, CCCR);
+ return 0;
+}
+
+PARENTS(clk_pxa27x_cpll) = { "osc_13mhz" };
+RATE_OPS(clk_pxa27x_cpll, "cpll");
+
+static unsigned long clk_pxa27x_lcd_base_get_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ unsigned int l, osc_forced;
+ unsigned long ccsr = readl(CCSR);
+ unsigned long cccr = readl(CCCR);
+
+ l = ccsr & CCSR_L_MASK;
+ osc_forced = ccsr & (1 << CCCR_CPDIS_BIT);
+ if (osc_forced) {
+ if (cccr & (1 << CCCR_LCD_26_BIT))
+ return parent_rate * 2;
+ else
+ return parent_rate;
+ }
+
+ if (l <= 7)
+ return parent_rate;
+ if (l <= 16)
+ return parent_rate / 2;
+ return parent_rate / 4;
+}
+
+static u8 clk_pxa27x_lcd_base_get_parent(struct clk_hw *hw)
+{
+ unsigned int osc_forced;
+ unsigned long ccsr = readl(CCSR);
+
+ osc_forced = ccsr & (1 << CCCR_CPDIS_BIT);
+ if (osc_forced)
+ return PXA_LCD_13Mhz;
+ else
+ return PXA_LCD_RUN;
+}
+
+PARENTS(clk_pxa27x_lcd_base) = { "osc_13mhz", "run" };
+MUX_RO_RATE_RO_OPS(clk_pxa27x_lcd_base, "lcd_base");
+
+static void __init pxa27x_register_plls(void)
+{
+ clk_register_fixed_rate(NULL, "osc_13mhz", NULL,
+ CLK_GET_RATE_NOCACHE,
+ 13 * MHz);
+ clkdev_pxa_register(CLK_OSC32k768, "osc_32_768khz", NULL,
+ clk_register_fixed_rate(NULL, "osc_32_768khz", NULL,
+ CLK_GET_RATE_NOCACHE,
+ 32768 * KHz));
+ clk_register_fixed_rate(NULL, "clk_dummy", NULL, 0, 0);
+ clk_register_fixed_factor(NULL, "ppll_312mhz", "osc_13mhz", 0, 24, 1);
+}
+
+static u8 clk_pxa27x_core_get_parent(struct clk_hw *hw)
+{
+ unsigned long clkcfg;
+ unsigned int t, ht, osc_forced;
+ unsigned long ccsr = readl(CCSR);
+
+ osc_forced = ccsr & (1 << CCCR_CPDIS_BIT);
+ if (osc_forced)
+ return PXA_CORE_13Mhz;
+
+ asm("mrc\tp14, 0, %0, c6, c0, 0" : "=r" (clkcfg));
+ t = clkcfg & (1 << 0);
+ ht = clkcfg & (1 << 2);
+
+ if (ht || t)
+ return PXA_CORE_TURBO;
+ return PXA_CORE_RUN;
+}
+
+static int clk_pxa27x_core_set_parent(struct clk_hw *hw, u8 index)
+{
+ if (index > PXA_CORE_TURBO)
+ return -EINVAL;
+
+ pxa2xx_core_turbo_switch(index == PXA_CORE_TURBO);
+
+ return 0;
+}
+
+static int clk_pxa27x_core_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
+{
+ return __clk_mux_determine_rate(hw, req);
+}
+
+PARENTS(clk_pxa27x_core) = { "osc_13mhz", "run", "cpll" };
+MUX_OPS(clk_pxa27x_core, "core", CLK_SET_RATE_PARENT);
+
+static unsigned long clk_pxa27x_run_get_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ unsigned long ccsr = readl(CCSR);
+ unsigned int n2 = (ccsr & CCSR_N2_MASK) >> CCSR_N2_SHIFT;
+
+ return (parent_rate / n2) * 2;
+}
+PARENTS(clk_pxa27x_run) = { "cpll" };
+RATE_RO_OPS(clk_pxa27x_run, "run");
+
+static void __init pxa27x_register_core(void)
+{
+ clkdev_pxa_register(CLK_NONE, "cpll", NULL,
+ clk_register_clk_pxa27x_cpll());
+ clkdev_pxa_register(CLK_NONE, "run", NULL,
+ clk_register_clk_pxa27x_run());
+ clkdev_pxa_register(CLK_CORE, "core", NULL,
+ clk_register_clk_pxa27x_core());
+}
+
+static unsigned long clk_pxa27x_system_bus_get_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ unsigned long clkcfg;
+ unsigned int b, osc_forced;
+ unsigned long ccsr = readl(CCSR);
+
+ osc_forced = ccsr & (1 << CCCR_CPDIS_BIT);
+ asm("mrc\tp14, 0, %0, c6, c0, 0" : "=r" (clkcfg));
+ b = clkcfg & (1 << 3);
+
+ if (osc_forced)
+ return parent_rate;
+ if (b)
+ return parent_rate;
+ else
+ return parent_rate / 2;
+}
+
+static u8 clk_pxa27x_system_bus_get_parent(struct clk_hw *hw)
+{
+ unsigned int osc_forced;
+ unsigned long ccsr = readl(CCSR);
+
+ osc_forced = ccsr & (1 << CCCR_CPDIS_BIT);
+ if (osc_forced)
+ return PXA_BUS_13Mhz;
+ else
+ return PXA_BUS_RUN;
+}
+
+PARENTS(clk_pxa27x_system_bus) = { "osc_13mhz", "run" };
+MUX_RO_RATE_RO_OPS(clk_pxa27x_system_bus, "system_bus");
+
+static unsigned long clk_pxa27x_memory_get_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ unsigned int a, l, osc_forced;
+ unsigned long cccr = readl(CCCR);
+ unsigned long ccsr = readl(CCSR);
+
+ osc_forced = ccsr & (1 << CCCR_CPDIS_BIT);
+ a = cccr & (1 << CCCR_A_BIT);
+ l = ccsr & CCSR_L_MASK;
+
+ if (osc_forced || a)
+ return parent_rate;
+ if (l <= 10)
+ return parent_rate;
+ if (l <= 20)
+ return parent_rate / 2;
+ return parent_rate / 4;
+}
+
+static u8 clk_pxa27x_memory_get_parent(struct clk_hw *hw)
+{
+ unsigned int osc_forced, a;
+ unsigned long cccr = readl(CCCR);
+ unsigned long ccsr = readl(CCSR);
+
+ osc_forced = ccsr & (1 << CCCR_CPDIS_BIT);
+ a = cccr & (1 << CCCR_A_BIT);
+ if (osc_forced)
+ return PXA_MEM_13Mhz;
+ if (a)
+ return PXA_MEM_SYSTEM_BUS;
+ else
+ return PXA_MEM_RUN;
+}
+
+PARENTS(clk_pxa27x_memory) = { "osc_13mhz", "system_bus", "run" };
+MUX_RO_RATE_RO_OPS(clk_pxa27x_memory, "memory");
+
+#define DUMMY_CLK(_con_id, _dev_id, _parent) \
+ { .con_id = _con_id, .dev_id = _dev_id, .parent = _parent }
+struct dummy_clk {
+ const char *con_id;
+ const char *dev_id;
+ const char *parent;
+};
+static struct dummy_clk dummy_clks[] __initdata = {
+ DUMMY_CLK(NULL, "pxa27x-gpio", "osc_32_768khz"),
+ DUMMY_CLK(NULL, "pxa-rtc", "osc_32_768khz"),
+ DUMMY_CLK(NULL, "sa1100-rtc", "osc_32_768khz"),
+ DUMMY_CLK("UARTCLK", "pxa2xx-ir", "STUART"),
+};
+
+static void __init pxa27x_dummy_clocks_init(void)
+{
+ struct clk *clk;
+ struct dummy_clk *d;
+ const char *name;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(dummy_clks); i++) {
+ d = &dummy_clks[i];
+ name = d->dev_id ? d->dev_id : d->con_id;
+ clk = clk_register_fixed_factor(NULL, name, d->parent, 0, 1, 1);
+ clk_register_clkdev(clk, d->con_id, d->dev_id);
+ }
+}
+
+static void __init pxa27x_base_clocks_init(void)
+{
+ pxa27x_register_plls();
+ pxa27x_register_core();
+ clkdev_pxa_register(CLK_NONE, "system_bus", NULL,
+ clk_register_clk_pxa27x_system_bus());
+ clkdev_pxa_register(CLK_NONE, "memory", NULL,
+ clk_register_clk_pxa27x_memory());
+ clk_register_clk_pxa27x_lcd_base();
+}
+
+int __init pxa27x_clocks_init(void)
+{
+ pxa27x_base_clocks_init();
+ pxa27x_dummy_clocks_init();
+ return clk_pxa_cken_init(pxa27x_clocks, ARRAY_SIZE(pxa27x_clocks));
+}
+
+static void __init pxa27x_dt_clocks_init(struct device_node *np)
+{
+ pxa27x_clocks_init();
+ clk_pxa_dt_common_init(np);
+}
+CLK_OF_DECLARE(pxa_clks, "marvell,pxa270-clocks", pxa27x_dt_clocks_init);
diff --git a/drivers/clk/pxa/clk-pxa3xx.c b/drivers/clk/pxa/clk-pxa3xx.c
new file mode 100644
index 000000000..60db92772
--- /dev/null
+++ b/drivers/clk/pxa/clk-pxa3xx.c
@@ -0,0 +1,368 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Marvell PXA3xxx family clocks
+ *
+ * Copyright (C) 2014 Robert Jarzmik
+ *
+ * Heavily inspired from former arch/arm/mach-pxa/pxa3xx.c
+ *
+ * For non-devicetree platforms. Once pxa is fully converted to devicetree, this
+ * should go away.
+ */
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/of.h>
+#include <mach/smemc.h>
+#include <mach/pxa3xx-regs.h>
+
+#include <dt-bindings/clock/pxa-clock.h>
+#include "clk-pxa.h"
+
+#define KHz 1000
+#define MHz (1000 * 1000)
+
+enum {
+ PXA_CORE_60Mhz = 0,
+ PXA_CORE_RUN,
+ PXA_CORE_TURBO,
+};
+
+enum {
+ PXA_BUS_60Mhz = 0,
+ PXA_BUS_HSS,
+};
+
+/* crystal frequency to HSIO bus frequency multiplier (HSS) */
+static unsigned char hss_mult[4] = { 8, 12, 16, 24 };
+
+/* crystal frequency to static memory controller multiplier (SMCFS) */
+static unsigned int smcfs_mult[8] = { 6, 0, 8, 0, 0, 16, };
+static unsigned int df_clkdiv[4] = { 1, 2, 4, 1 };
+
+static const char * const get_freq_khz[] = {
+ "core", "ring_osc_60mhz", "run", "cpll", "system_bus"
+};
+
+/*
+ * Get the clock frequency as reflected by ACSR and the turbo flag.
+ * We assume these values have been applied via a fcs.
+ * If info is not 0 we also display the current settings.
+ */
+unsigned int pxa3xx_get_clk_frequency_khz(int info)
+{
+ struct clk *clk;
+ unsigned long clks[5];
+ int i;
+
+ for (i = 0; i < 5; i++) {
+ clk = clk_get(NULL, get_freq_khz[i]);
+ if (IS_ERR(clk)) {
+ clks[i] = 0;
+ } else {
+ clks[i] = clk_get_rate(clk);
+ clk_put(clk);
+ }
+ }
+ if (info) {
+ pr_info("RO Mode clock: %ld.%02ldMHz\n",
+ clks[1] / 1000000, (clks[0] % 1000000) / 10000);
+ pr_info("Run Mode clock: %ld.%02ldMHz\n",
+ clks[2] / 1000000, (clks[1] % 1000000) / 10000);
+ pr_info("Turbo Mode clock: %ld.%02ldMHz\n",
+ clks[3] / 1000000, (clks[2] % 1000000) / 10000);
+ pr_info("System bus clock: %ld.%02ldMHz\n",
+ clks[4] / 1000000, (clks[4] % 1000000) / 10000);
+ }
+ return (unsigned int)clks[0] / KHz;
+}
+
+static unsigned long clk_pxa3xx_ac97_get_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ unsigned long ac97_div, rate;
+
+ ac97_div = AC97_DIV;
+
+ /* This may loose precision for some rates but won't for the
+ * standard 24.576MHz.
+ */
+ rate = parent_rate / 2;
+ rate /= ((ac97_div >> 12) & 0x7fff);
+ rate *= (ac97_div & 0xfff);
+
+ return rate;
+}
+PARENTS(clk_pxa3xx_ac97) = { "spll_624mhz" };
+RATE_RO_OPS(clk_pxa3xx_ac97, "ac97");
+
+static unsigned long clk_pxa3xx_smemc_get_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ unsigned long acsr = ACSR;
+ unsigned long memclkcfg = __raw_readl(MEMCLKCFG);
+
+ return (parent_rate / 48) * smcfs_mult[(acsr >> 23) & 0x7] /
+ df_clkdiv[(memclkcfg >> 16) & 0x3];
+}
+PARENTS(clk_pxa3xx_smemc) = { "spll_624mhz" };
+RATE_RO_OPS(clk_pxa3xx_smemc, "smemc");
+
+static bool pxa3xx_is_ring_osc_forced(void)
+{
+ unsigned long acsr = ACSR;
+
+ return acsr & ACCR_D0CS;
+}
+
+PARENTS(pxa3xx_pbus) = { "ring_osc_60mhz", "spll_624mhz" };
+PARENTS(pxa3xx_32Khz_bus) = { "osc_32_768khz", "osc_32_768khz" };
+PARENTS(pxa3xx_13MHz_bus) = { "osc_13mhz", "osc_13mhz" };
+PARENTS(pxa3xx_ac97_bus) = { "ring_osc_60mhz", "ac97" };
+PARENTS(pxa3xx_sbus) = { "ring_osc_60mhz", "system_bus" };
+PARENTS(pxa3xx_smemcbus) = { "ring_osc_60mhz", "smemc" };
+
+#define CKEN_AB(bit) ((CKEN_ ## bit > 31) ? &CKENB : &CKENA)
+#define PXA3XX_CKEN(dev_id, con_id, parents, mult_lp, div_lp, mult_hp, \
+ div_hp, bit, is_lp, flags) \
+ PXA_CKEN(dev_id, con_id, bit, parents, mult_lp, div_lp, \
+ mult_hp, div_hp, is_lp, CKEN_AB(bit), \
+ (CKEN_ ## bit % 32), flags)
+#define PXA3XX_PBUS_CKEN(dev_id, con_id, bit, mult_lp, div_lp, \
+ mult_hp, div_hp, delay) \
+ PXA3XX_CKEN(dev_id, con_id, pxa3xx_pbus_parents, mult_lp, \
+ div_lp, mult_hp, div_hp, bit, pxa3xx_is_ring_osc_forced, 0)
+#define PXA3XX_CKEN_1RATE(dev_id, con_id, bit, parents) \
+ PXA_CKEN_1RATE(dev_id, con_id, bit, parents, \
+ CKEN_AB(bit), (CKEN_ ## bit % 32), 0)
+
+static struct desc_clk_cken pxa3xx_clocks[] __initdata = {
+ PXA3XX_PBUS_CKEN("pxa2xx-uart.0", NULL, FFUART, 1, 4, 1, 42, 1),
+ PXA3XX_PBUS_CKEN("pxa2xx-uart.1", NULL, BTUART, 1, 4, 1, 42, 1),
+ PXA3XX_PBUS_CKEN("pxa2xx-uart.2", NULL, STUART, 1, 4, 1, 42, 1),
+ PXA3XX_PBUS_CKEN("pxa2xx-i2c.0", NULL, I2C, 2, 5, 1, 19, 0),
+ PXA3XX_PBUS_CKEN("pxa27x-udc", NULL, UDC, 1, 4, 1, 13, 5),
+ PXA3XX_PBUS_CKEN("pxa27x-ohci", NULL, USBH, 1, 4, 1, 13, 0),
+ PXA3XX_PBUS_CKEN("pxa3xx-u2d", NULL, USB2, 1, 4, 1, 13, 0),
+ PXA3XX_PBUS_CKEN("pxa27x-pwm.0", NULL, PWM0, 1, 6, 1, 48, 0),
+ PXA3XX_PBUS_CKEN("pxa27x-pwm.1", NULL, PWM1, 1, 6, 1, 48, 0),
+ PXA3XX_PBUS_CKEN("pxa2xx-mci.0", NULL, MMC1, 1, 4, 1, 24, 0),
+ PXA3XX_PBUS_CKEN("pxa2xx-mci.1", NULL, MMC2, 1, 4, 1, 24, 0),
+ PXA3XX_PBUS_CKEN("pxa2xx-mci.2", NULL, MMC3, 1, 4, 1, 24, 0),
+
+ PXA3XX_CKEN_1RATE("pxa27x-keypad", NULL, KEYPAD,
+ pxa3xx_32Khz_bus_parents),
+ PXA3XX_CKEN_1RATE("pxa3xx-ssp.0", NULL, SSP1, pxa3xx_13MHz_bus_parents),
+ PXA3XX_CKEN_1RATE("pxa3xx-ssp.1", NULL, SSP2, pxa3xx_13MHz_bus_parents),
+ PXA3XX_CKEN_1RATE("pxa3xx-ssp.2", NULL, SSP3, pxa3xx_13MHz_bus_parents),
+ PXA3XX_CKEN_1RATE("pxa3xx-ssp.3", NULL, SSP4, pxa3xx_13MHz_bus_parents),
+
+ PXA3XX_CKEN(NULL, "AC97CLK", pxa3xx_ac97_bus_parents, 1, 4, 1, 1, AC97,
+ pxa3xx_is_ring_osc_forced, 0),
+ PXA3XX_CKEN(NULL, "CAMCLK", pxa3xx_sbus_parents, 1, 2, 1, 1, CAMERA,
+ pxa3xx_is_ring_osc_forced, 0),
+ PXA3XX_CKEN("pxa2xx-fb", NULL, pxa3xx_sbus_parents, 1, 1, 1, 1, LCD,
+ pxa3xx_is_ring_osc_forced, 0),
+ PXA3XX_CKEN("pxa2xx-pcmcia", NULL, pxa3xx_smemcbus_parents, 1, 4,
+ 1, 1, SMC, pxa3xx_is_ring_osc_forced, CLK_IGNORE_UNUSED),
+};
+
+static struct desc_clk_cken pxa300_310_clocks[] __initdata = {
+
+ PXA3XX_PBUS_CKEN("pxa3xx-gcu", NULL, PXA300_GCU, 1, 1, 1, 1, 0),
+ PXA3XX_PBUS_CKEN("pxa3xx-nand", NULL, NAND, 1, 2, 1, 4, 0),
+ PXA3XX_CKEN_1RATE("pxa3xx-gpio", NULL, GPIO, pxa3xx_13MHz_bus_parents),
+};
+
+static struct desc_clk_cken pxa320_clocks[] __initdata = {
+ PXA3XX_PBUS_CKEN("pxa3xx-nand", NULL, NAND, 1, 2, 1, 6, 0),
+ PXA3XX_PBUS_CKEN("pxa3xx-gcu", NULL, PXA320_GCU, 1, 1, 1, 1, 0),
+ PXA3XX_CKEN_1RATE("pxa3xx-gpio", NULL, GPIO, pxa3xx_13MHz_bus_parents),
+};
+
+static struct desc_clk_cken pxa93x_clocks[] __initdata = {
+
+ PXA3XX_PBUS_CKEN("pxa3xx-gcu", NULL, PXA300_GCU, 1, 1, 1, 1, 0),
+ PXA3XX_PBUS_CKEN("pxa3xx-nand", NULL, NAND, 1, 2, 1, 4, 0),
+ PXA3XX_CKEN_1RATE("pxa93x-gpio", NULL, GPIO, pxa3xx_13MHz_bus_parents),
+};
+
+static unsigned long clk_pxa3xx_system_bus_get_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ unsigned long acsr = ACSR;
+ unsigned int hss = (acsr >> 14) & 0x3;
+
+ if (pxa3xx_is_ring_osc_forced())
+ return parent_rate;
+ return parent_rate / 48 * hss_mult[hss];
+}
+
+static u8 clk_pxa3xx_system_bus_get_parent(struct clk_hw *hw)
+{
+ if (pxa3xx_is_ring_osc_forced())
+ return PXA_BUS_60Mhz;
+ else
+ return PXA_BUS_HSS;
+}
+
+PARENTS(clk_pxa3xx_system_bus) = { "ring_osc_60mhz", "spll_624mhz" };
+MUX_RO_RATE_RO_OPS(clk_pxa3xx_system_bus, "system_bus");
+
+static unsigned long clk_pxa3xx_core_get_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ return parent_rate;
+}
+
+static u8 clk_pxa3xx_core_get_parent(struct clk_hw *hw)
+{
+ unsigned long xclkcfg;
+ unsigned int t;
+
+ if (pxa3xx_is_ring_osc_forced())
+ return PXA_CORE_60Mhz;
+
+ /* Read XCLKCFG register turbo bit */
+ __asm__ __volatile__("mrc\tp14, 0, %0, c6, c0, 0" : "=r"(xclkcfg));
+ t = xclkcfg & 0x1;
+
+ if (t)
+ return PXA_CORE_TURBO;
+ return PXA_CORE_RUN;
+}
+PARENTS(clk_pxa3xx_core) = { "ring_osc_60mhz", "run", "cpll" };
+MUX_RO_RATE_RO_OPS(clk_pxa3xx_core, "core");
+
+static unsigned long clk_pxa3xx_run_get_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ unsigned long acsr = ACSR;
+ unsigned int xn = (acsr & ACCR_XN_MASK) >> 8;
+ unsigned int t, xclkcfg;
+
+ /* Read XCLKCFG register turbo bit */
+ __asm__ __volatile__("mrc\tp14, 0, %0, c6, c0, 0" : "=r"(xclkcfg));
+ t = xclkcfg & 0x1;
+
+ return t ? (parent_rate / xn) * 2 : parent_rate;
+}
+PARENTS(clk_pxa3xx_run) = { "cpll" };
+RATE_RO_OPS(clk_pxa3xx_run, "run");
+
+static unsigned long clk_pxa3xx_cpll_get_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ unsigned long acsr = ACSR;
+ unsigned int xn = (acsr & ACCR_XN_MASK) >> 8;
+ unsigned int xl = acsr & ACCR_XL_MASK;
+ unsigned int t, xclkcfg;
+
+ /* Read XCLKCFG register turbo bit */
+ __asm__ __volatile__("mrc\tp14, 0, %0, c6, c0, 0" : "=r"(xclkcfg));
+ t = xclkcfg & 0x1;
+
+ pr_info("RJK: parent_rate=%lu, xl=%u, xn=%u\n", parent_rate, xl, xn);
+ return t ? parent_rate * xl * xn : parent_rate * xl;
+}
+PARENTS(clk_pxa3xx_cpll) = { "osc_13mhz" };
+RATE_RO_OPS(clk_pxa3xx_cpll, "cpll");
+
+static void __init pxa3xx_register_core(void)
+{
+ clk_register_clk_pxa3xx_cpll();
+ clk_register_clk_pxa3xx_run();
+
+ clkdev_pxa_register(CLK_CORE, "core", NULL,
+ clk_register_clk_pxa3xx_core());
+}
+
+static void __init pxa3xx_register_plls(void)
+{
+ clk_register_fixed_rate(NULL, "osc_13mhz", NULL,
+ CLK_GET_RATE_NOCACHE,
+ 13 * MHz);
+ clkdev_pxa_register(CLK_OSC32k768, "osc_32_768khz", NULL,
+ clk_register_fixed_rate(NULL, "osc_32_768khz", NULL,
+ CLK_GET_RATE_NOCACHE,
+ 32768));
+ clk_register_fixed_rate(NULL, "ring_osc_120mhz", NULL,
+ CLK_GET_RATE_NOCACHE,
+ 120 * MHz);
+ clk_register_fixed_rate(NULL, "clk_dummy", NULL, 0, 0);
+ clk_register_fixed_factor(NULL, "spll_624mhz", "osc_13mhz", 0, 48, 1);
+ clk_register_fixed_factor(NULL, "ring_osc_60mhz", "ring_osc_120mhz",
+ 0, 1, 2);
+}
+
+#define DUMMY_CLK(_con_id, _dev_id, _parent) \
+ { .con_id = _con_id, .dev_id = _dev_id, .parent = _parent }
+struct dummy_clk {
+ const char *con_id;
+ const char *dev_id;
+ const char *parent;
+};
+static struct dummy_clk dummy_clks[] __initdata = {
+ DUMMY_CLK(NULL, "pxa93x-gpio", "osc_13mhz"),
+ DUMMY_CLK(NULL, "sa1100-rtc", "osc_32_768khz"),
+ DUMMY_CLK("UARTCLK", "pxa2xx-ir", "STUART"),
+ DUMMY_CLK(NULL, "pxa3xx-pwri2c.1", "osc_13mhz"),
+};
+
+static void __init pxa3xx_dummy_clocks_init(void)
+{
+ struct clk *clk;
+ struct dummy_clk *d;
+ const char *name;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(dummy_clks); i++) {
+ d = &dummy_clks[i];
+ name = d->dev_id ? d->dev_id : d->con_id;
+ clk = clk_register_fixed_factor(NULL, name, d->parent, 0, 1, 1);
+ clk_register_clkdev(clk, d->con_id, d->dev_id);
+ }
+}
+
+static void __init pxa3xx_base_clocks_init(void)
+{
+ struct clk *clk;
+
+ pxa3xx_register_plls();
+ pxa3xx_register_core();
+ clk_register_clk_pxa3xx_system_bus();
+ clk_register_clk_pxa3xx_ac97();
+ clk_register_clk_pxa3xx_smemc();
+ clk = clk_register_gate(NULL, "CLK_POUT",
+ "osc_13mhz", 0, OSCC, 11, 0, NULL);
+ clk_register_clkdev(clk, "CLK_POUT", NULL);
+ clkdev_pxa_register(CLK_OSTIMER, "OSTIMER0", NULL,
+ clk_register_fixed_factor(NULL, "os-timer0",
+ "osc_13mhz", 0, 1, 4));
+}
+
+int __init pxa3xx_clocks_init(void)
+{
+ int ret;
+
+ pxa3xx_base_clocks_init();
+ pxa3xx_dummy_clocks_init();
+ ret = clk_pxa_cken_init(pxa3xx_clocks, ARRAY_SIZE(pxa3xx_clocks));
+ if (ret)
+ return ret;
+ if (cpu_is_pxa320())
+ return clk_pxa_cken_init(pxa320_clocks,
+ ARRAY_SIZE(pxa320_clocks));
+ if (cpu_is_pxa300() || cpu_is_pxa310())
+ return clk_pxa_cken_init(pxa300_310_clocks,
+ ARRAY_SIZE(pxa300_310_clocks));
+ return clk_pxa_cken_init(pxa93x_clocks, ARRAY_SIZE(pxa93x_clocks));
+}
+
+static void __init pxa3xx_dt_clocks_init(struct device_node *np)
+{
+ pxa3xx_clocks_init();
+ clk_pxa_dt_common_init(np);
+}
+CLK_OF_DECLARE(pxa_clks, "marvell,pxa300-clocks", pxa3xx_dt_clocks_init);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 03:36:35 +0000