--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/clk-provider.h>
+#include <linux/clk/at91_pmc.h>
+#include <linux/of.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+#include "pmc.h"
+
+#define MASTER_SOURCE_MAX 4
+
+#define PERIPHERAL_AT91RM9200 0
+#define PERIPHERAL_AT91SAM9X5 1
+
+#define PERIPHERAL_MAX 64
+
+#define PERIPHERAL_ID_MIN 2
+
+#define PROG_SOURCE_MAX 5
+#define PROG_ID_MAX 7
+
+#define SYSTEM_MAX_ID 31
+
+#ifdef CONFIG_HAVE_AT91_AUDIO_PLL
+static void __init of_sama5d2_clk_audio_pll_frac_setup(struct device_node *np)
+{
+ struct clk_hw *hw;
+ const char *name = np->name;
+ const char *parent_name;
+ struct regmap *regmap;
+
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+
+ parent_name = of_clk_get_parent_name(np, 0);
+
+ hw = at91_clk_register_audio_pll_frac(regmap, name, parent_name);
+ if (IS_ERR(hw))
+ return;
+
+ of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+}
+CLK_OF_DECLARE(of_sama5d2_clk_audio_pll_frac_setup,
+ "atmel,sama5d2-clk-audio-pll-frac",
+ of_sama5d2_clk_audio_pll_frac_setup);
+
+static void __init of_sama5d2_clk_audio_pll_pad_setup(struct device_node *np)
+{
+ struct clk_hw *hw;
+ const char *name = np->name;
+ const char *parent_name;
+ struct regmap *regmap;
+
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+
+ parent_name = of_clk_get_parent_name(np, 0);
+
+ hw = at91_clk_register_audio_pll_pad(regmap, name, parent_name);
+ if (IS_ERR(hw))
+ return;
+
+ of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+}
+CLK_OF_DECLARE(of_sama5d2_clk_audio_pll_pad_setup,
+ "atmel,sama5d2-clk-audio-pll-pad",
+ of_sama5d2_clk_audio_pll_pad_setup);
+
+static void __init of_sama5d2_clk_audio_pll_pmc_setup(struct device_node *np)
+{
+ struct clk_hw *hw;
+ const char *name = np->name;
+ const char *parent_name;
+ struct regmap *regmap;
+
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+
+ parent_name = of_clk_get_parent_name(np, 0);
+
+ hw = at91_clk_register_audio_pll_pmc(regmap, name, parent_name);
+ if (IS_ERR(hw))
+ return;
+
+ of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+}
+CLK_OF_DECLARE(of_sama5d2_clk_audio_pll_pmc_setup,
+ "atmel,sama5d2-clk-audio-pll-pmc",
+ of_sama5d2_clk_audio_pll_pmc_setup);
+#endif /* CONFIG_HAVE_AT91_AUDIO_PLL */
+
+#ifdef CONFIG_HAVE_AT91_GENERATED_CLK
+#define GENERATED_SOURCE_MAX 6
+
+#define GCK_ID_I2S0 54
+#define GCK_ID_I2S1 55
+#define GCK_ID_CLASSD 59
+
+static void __init of_sama5d2_clk_generated_setup(struct device_node *np)
+{
+ int num;
+ u32 id;
+ const char *name;
+ struct clk_hw *hw;
+ unsigned int num_parents;
+ const char *parent_names[GENERATED_SOURCE_MAX];
+ struct device_node *gcknp;
+ struct clk_range range = CLK_RANGE(0, 0);
+ struct regmap *regmap;
+
+ num_parents = of_clk_get_parent_count(np);
+ if (num_parents == 0 || num_parents > GENERATED_SOURCE_MAX)
+ return;
+
+ of_clk_parent_fill(np, parent_names, num_parents);
+
+ num = of_get_child_count(np);
+ if (!num || num > PERIPHERAL_MAX)
+ return;
+
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+
+ for_each_child_of_node(np, gcknp) {
+ bool pll_audio = false;
+
+ if (of_property_read_u32(gcknp, "reg", &id))
+ continue;
+
+ if (id < PERIPHERAL_ID_MIN || id >= PERIPHERAL_MAX)
+ continue;
+
+ if (of_property_read_string(np, "clock-output-names", &name))
+ name = gcknp->name;
+
+ of_at91_get_clk_range(gcknp, "atmel,clk-output-range",
+ &range);
+
+ if (of_device_is_compatible(np, "atmel,sama5d2-clk-generated") &&
+ (id == GCK_ID_I2S0 || id == GCK_ID_I2S1 ||
+ id == GCK_ID_CLASSD))
+ pll_audio = true;
+
+ hw = at91_clk_register_generated(regmap, &pmc_pcr_lock, name,
+ parent_names, num_parents,
+ id, pll_audio, &range);
+ if (IS_ERR(hw))
+ continue;
+
+ of_clk_add_hw_provider(gcknp, of_clk_hw_simple_get, hw);
+ }
+}
+CLK_OF_DECLARE(of_sama5d2_clk_generated_setup, "atmel,sama5d2-clk-generated",
+ of_sama5d2_clk_generated_setup);
+#endif /* CONFIG_HAVE_AT91_GENERATED_CLK */
+
+#ifdef CONFIG_HAVE_AT91_H32MX
+static void __init of_sama5d4_clk_h32mx_setup(struct device_node *np)
+{
+ struct clk_hw *hw;
+ const char *name = np->name;
+ const char *parent_name;
+ struct regmap *regmap;
+
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+
+ parent_name = of_clk_get_parent_name(np, 0);
+
+ hw = at91_clk_register_h32mx(regmap, name, parent_name);
+ if (IS_ERR(hw))
+ return;
+
+ of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+}
+CLK_OF_DECLARE(of_sama5d4_clk_h32mx_setup, "atmel,sama5d4-clk-h32mx",
+ of_sama5d4_clk_h32mx_setup);
+#endif /* CONFIG_HAVE_AT91_H32MX */
+
+#ifdef CONFIG_HAVE_AT91_I2S_MUX_CLK
+#define I2S_BUS_NR 2
+
+static void __init of_sama5d2_clk_i2s_mux_setup(struct device_node *np)
+{
+ struct regmap *regmap_sfr;
+ u8 bus_id;
+ const char *parent_names[2];
+ struct device_node *i2s_mux_np;
+ struct clk_hw *hw;
+ int ret;
+
+ regmap_sfr = syscon_regmap_lookup_by_compatible("atmel,sama5d2-sfr");
+ if (IS_ERR(regmap_sfr))
+ return;
+
+ for_each_child_of_node(np, i2s_mux_np) {
+ if (of_property_read_u8(i2s_mux_np, "reg", &bus_id))
+ continue;
+
+ if (bus_id > I2S_BUS_NR)
+ continue;
+
+ ret = of_clk_parent_fill(i2s_mux_np, parent_names, 2);
+ if (ret != 2)
+ continue;
+
+ hw = at91_clk_i2s_mux_register(regmap_sfr, i2s_mux_np->name,
+ parent_names, 2, bus_id);
+ if (IS_ERR(hw))
+ continue;
+
+ of_clk_add_hw_provider(i2s_mux_np, of_clk_hw_simple_get, hw);
+ }
+}
+CLK_OF_DECLARE(sama5d2_clk_i2s_mux, "atmel,sama5d2-clk-i2s-mux",
+ of_sama5d2_clk_i2s_mux_setup);
+#endif /* CONFIG_HAVE_AT91_I2S_MUX_CLK */
+
+static void __init of_at91rm9200_clk_main_osc_setup(struct device_node *np)
+{
+ struct clk_hw *hw;
+ const char *name = np->name;
+ const char *parent_name;
+ struct regmap *regmap;
+ bool bypass;
+
+ of_property_read_string(np, "clock-output-names", &name);
+ bypass = of_property_read_bool(np, "atmel,osc-bypass");
+ parent_name = of_clk_get_parent_name(np, 0);
+
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+
+ hw = at91_clk_register_main_osc(regmap, name, parent_name, bypass);
+ if (IS_ERR(hw))
+ return;
+
+ of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+}
+CLK_OF_DECLARE(at91rm9200_clk_main_osc, "atmel,at91rm9200-clk-main-osc",
+ of_at91rm9200_clk_main_osc_setup);
+
+static void __init of_at91sam9x5_clk_main_rc_osc_setup(struct device_node *np)
+{
+ struct clk_hw *hw;
+ u32 frequency = 0;
+ u32 accuracy = 0;
+ const char *name = np->name;
+ struct regmap *regmap;
+
+ of_property_read_string(np, "clock-output-names", &name);
+ of_property_read_u32(np, "clock-frequency", &frequency);
+ of_property_read_u32(np, "clock-accuracy", &accuracy);
+
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+
+ hw = at91_clk_register_main_rc_osc(regmap, name, frequency, accuracy);
+ if (IS_ERR(hw))
+ return;
+
+ of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+}
+CLK_OF_DECLARE(at91sam9x5_clk_main_rc_osc, "atmel,at91sam9x5-clk-main-rc-osc",
+ of_at91sam9x5_clk_main_rc_osc_setup);
+
+static void __init of_at91rm9200_clk_main_setup(struct device_node *np)
+{
+ struct clk_hw *hw;
+ const char *parent_name;
+ const char *name = np->name;
+ struct regmap *regmap;
+
+ parent_name = of_clk_get_parent_name(np, 0);
+ of_property_read_string(np, "clock-output-names", &name);
+
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+
+ hw = at91_clk_register_rm9200_main(regmap, name, parent_name);
+ if (IS_ERR(hw))
+ return;
+
+ of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+}
+CLK_OF_DECLARE(at91rm9200_clk_main, "atmel,at91rm9200-clk-main",
+ of_at91rm9200_clk_main_setup);
+
+static void __init of_at91sam9x5_clk_main_setup(struct device_node *np)
+{
+ struct clk_hw *hw;
+ const char *parent_names[2];
+ unsigned int num_parents;
+ const char *name = np->name;
+ struct regmap *regmap;
+
+ num_parents = of_clk_get_parent_count(np);
+ if (num_parents == 0 || num_parents > 2)
+ return;
+
+ of_clk_parent_fill(np, parent_names, num_parents);
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+
+ of_property_read_string(np, "clock-output-names", &name);
+
+ hw = at91_clk_register_sam9x5_main(regmap, name, parent_names,
+ num_parents);
+ if (IS_ERR(hw))
+ return;
+
+ of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+}
+CLK_OF_DECLARE(at91sam9x5_clk_main, "atmel,at91sam9x5-clk-main",
+ of_at91sam9x5_clk_main_setup);
+
+static struct clk_master_characteristics * __init
+of_at91_clk_master_get_characteristics(struct device_node *np)
+{
+ struct clk_master_characteristics *characteristics;
+
+ characteristics = kzalloc(sizeof(*characteristics), GFP_KERNEL);
+ if (!characteristics)
+ return NULL;
+
+ if (of_at91_get_clk_range(np, "atmel,clk-output-range", &characteristics->output))
+ goto out_free_characteristics;
+
+ of_property_read_u32_array(np, "atmel,clk-divisors",
+ characteristics->divisors, 4);
+
+ characteristics->have_div3_pres =
+ of_property_read_bool(np, "atmel,master-clk-have-div3-pres");
+
+ return characteristics;
+
+out_free_characteristics:
+ kfree(characteristics);
+ return NULL;
+}
+
+static void __init
+of_at91_clk_master_setup(struct device_node *np,
+ const struct clk_master_layout *layout)
+{
+ struct clk_hw *hw;
+ unsigned int num_parents;
+ const char *parent_names[MASTER_SOURCE_MAX];
+ const char *name = np->name;
+ struct clk_master_characteristics *characteristics;
+ struct regmap *regmap;
+
+ num_parents = of_clk_get_parent_count(np);
+ if (num_parents == 0 || num_parents > MASTER_SOURCE_MAX)
+ return;
+
+ of_clk_parent_fill(np, parent_names, num_parents);
+
+ of_property_read_string(np, "clock-output-names", &name);
+
+ characteristics = of_at91_clk_master_get_characteristics(np);
+ if (!characteristics)
+ return;
+
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+
+ hw = at91_clk_register_master(regmap, name, num_parents,
+ parent_names, layout,
+ characteristics);
+ if (IS_ERR(hw))
+ goto out_free_characteristics;
+
+ of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+ return;
+
+out_free_characteristics:
+ kfree(characteristics);
+}
+
+static void __init of_at91rm9200_clk_master_setup(struct device_node *np)
+{
+ of_at91_clk_master_setup(np, &at91rm9200_master_layout);
+}
+CLK_OF_DECLARE(at91rm9200_clk_master, "atmel,at91rm9200-clk-master",
+ of_at91rm9200_clk_master_setup);
+
+static void __init of_at91sam9x5_clk_master_setup(struct device_node *np)
+{
+ of_at91_clk_master_setup(np, &at91sam9x5_master_layout);
+}
+CLK_OF_DECLARE(at91sam9x5_clk_master, "atmel,at91sam9x5-clk-master",
+ of_at91sam9x5_clk_master_setup);
+
+static void __init
+of_at91_clk_periph_setup(struct device_node *np, u8 type)
+{
+ int num;
+ u32 id;
+ struct clk_hw *hw;
+ const char *parent_name;
+ const char *name;
+ struct device_node *periphclknp;
+ struct regmap *regmap;
+
+ parent_name = of_clk_get_parent_name(np, 0);
+ if (!parent_name)
+ return;
+
+ num = of_get_child_count(np);
+ if (!num || num > PERIPHERAL_MAX)
+ return;
+
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+
+ for_each_child_of_node(np, periphclknp) {
+ if (of_property_read_u32(periphclknp, "reg", &id))
+ continue;
+
+ if (id >= PERIPHERAL_MAX)
+ continue;
+
+ if (of_property_read_string(np, "clock-output-names", &name))
+ name = periphclknp->name;
+
+ if (type == PERIPHERAL_AT91RM9200) {
+ hw = at91_clk_register_peripheral(regmap, name,
+ parent_name, id);
+ } else {
+ struct clk_range range = CLK_RANGE(0, 0);
+
+ of_at91_get_clk_range(periphclknp,
+ "atmel,clk-output-range",
+ &range);
+
+ hw = at91_clk_register_sam9x5_peripheral(regmap,
+ &pmc_pcr_lock,
+ name,
+ parent_name,
+ id, &range);
+ }
+
+ if (IS_ERR(hw))
+ continue;
+
+ of_clk_add_hw_provider(periphclknp, of_clk_hw_simple_get, hw);
+ }
+}
+
+static void __init of_at91rm9200_clk_periph_setup(struct device_node *np)
+{
+ of_at91_clk_periph_setup(np, PERIPHERAL_AT91RM9200);
+}
+CLK_OF_DECLARE(at91rm9200_clk_periph, "atmel,at91rm9200-clk-peripheral",
+ of_at91rm9200_clk_periph_setup);
+
+static void __init of_at91sam9x5_clk_periph_setup(struct device_node *np)
+{
+ of_at91_clk_periph_setup(np, PERIPHERAL_AT91SAM9X5);
+}
+CLK_OF_DECLARE(at91sam9x5_clk_periph, "atmel,at91sam9x5-clk-peripheral",
+ of_at91sam9x5_clk_periph_setup);
+
+static struct clk_pll_characteristics * __init
+of_at91_clk_pll_get_characteristics(struct device_node *np)
+{
+ int i;
+ int offset;
+ u32 tmp;
+ int num_output;
+ u32 num_cells;
+ struct clk_range input;
+ struct clk_range *output;
+ u8 *out = NULL;
+ u16 *icpll = NULL;
+ struct clk_pll_characteristics *characteristics;
+
+ if (of_at91_get_clk_range(np, "atmel,clk-input-range", &input))
+ return NULL;
+
+ if (of_property_read_u32(np, "#atmel,pll-clk-output-range-cells",
+ &num_cells))
+ return NULL;
+
+ if (num_cells < 2 || num_cells > 4)
+ return NULL;
+
+ if (!of_get_property(np, "atmel,pll-clk-output-ranges", &tmp))
+ return NULL;
+ num_output = tmp / (sizeof(u32) * num_cells);
+
+ characteristics = kzalloc(sizeof(*characteristics), GFP_KERNEL);
+ if (!characteristics)
+ return NULL;
+
+ output = kcalloc(num_output, sizeof(*output), GFP_KERNEL);
+ if (!output)
+ goto out_free_characteristics;
+
+ if (num_cells > 2) {
+ out = kcalloc(num_output, sizeof(*out), GFP_KERNEL);
+ if (!out)
+ goto out_free_output;
+ }
+
+ if (num_cells > 3) {
+ icpll = kcalloc(num_output, sizeof(*icpll), GFP_KERNEL);
+ if (!icpll)
+ goto out_free_output;
+ }
+
+ for (i = 0; i < num_output; i++) {
+ offset = i * num_cells;
+ if (of_property_read_u32_index(np,
+ "atmel,pll-clk-output-ranges",
+ offset, &tmp))
+ goto out_free_output;
+ output[i].min = tmp;
+ if (of_property_read_u32_index(np,
+ "atmel,pll-clk-output-ranges",
+ offset + 1, &tmp))
+ goto out_free_output;
+ output[i].max = tmp;
+
+ if (num_cells == 2)
+ continue;
+
+ if (of_property_read_u32_index(np,
+ "atmel,pll-clk-output-ranges",
+ offset + 2, &tmp))
+ goto out_free_output;
+ out[i] = tmp;
+
+ if (num_cells == 3)
+ continue;
+
+ if (of_property_read_u32_index(np,
+ "atmel,pll-clk-output-ranges",
+ offset + 3, &tmp))
+ goto out_free_output;
+ icpll[i] = tmp;
+ }
+
+ characteristics->input = input;
+ characteristics->num_output = num_output;
+ characteristics->output = output;
+ characteristics->out = out;
+ characteristics->icpll = icpll;
+ return characteristics;
+
+out_free_output:
+ kfree(icpll);
+ kfree(out);
+ kfree(output);
+out_free_characteristics:
+ kfree(characteristics);
+ return NULL;
+}
+
+static void __init
+of_at91_clk_pll_setup(struct device_node *np,
+ const struct clk_pll_layout *layout)
+{
+ u32 id;
+ struct clk_hw *hw;
+ struct regmap *regmap;
+ const char *parent_name;
+ const char *name = np->name;
+ struct clk_pll_characteristics *characteristics;
+
+ if (of_property_read_u32(np, "reg", &id))
+ return;
+
+ parent_name = of_clk_get_parent_name(np, 0);
+
+ of_property_read_string(np, "clock-output-names", &name);
+
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+
+ characteristics = of_at91_clk_pll_get_characteristics(np);
+ if (!characteristics)
+ return;
+
+ hw = at91_clk_register_pll(regmap, name, parent_name, id, layout,
+ characteristics);
+ if (IS_ERR(hw))
+ goto out_free_characteristics;
+
+ of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+ return;
+
+out_free_characteristics:
+ kfree(characteristics);
+}
+
+static void __init of_at91rm9200_clk_pll_setup(struct device_node *np)
+{
+ of_at91_clk_pll_setup(np, &at91rm9200_pll_layout);
+}
+CLK_OF_DECLARE(at91rm9200_clk_pll, "atmel,at91rm9200-clk-pll",
+ of_at91rm9200_clk_pll_setup);
+
+static void __init of_at91sam9g45_clk_pll_setup(struct device_node *np)
+{
+ of_at91_clk_pll_setup(np, &at91sam9g45_pll_layout);
+}
+CLK_OF_DECLARE(at91sam9g45_clk_pll, "atmel,at91sam9g45-clk-pll",
+ of_at91sam9g45_clk_pll_setup);
+
+static void __init of_at91sam9g20_clk_pllb_setup(struct device_node *np)
+{
+ of_at91_clk_pll_setup(np, &at91sam9g20_pllb_layout);
+}
+CLK_OF_DECLARE(at91sam9g20_clk_pllb, "atmel,at91sam9g20-clk-pllb",
+ of_at91sam9g20_clk_pllb_setup);
+
+static void __init of_sama5d3_clk_pll_setup(struct device_node *np)
+{
+ of_at91_clk_pll_setup(np, &sama5d3_pll_layout);
+}
+CLK_OF_DECLARE(sama5d3_clk_pll, "atmel,sama5d3-clk-pll",
+ of_sama5d3_clk_pll_setup);
+
+static void __init
+of_at91sam9x5_clk_plldiv_setup(struct device_node *np)
+{
+ struct clk_hw *hw;
+ const char *parent_name;
+ const char *name = np->name;
+ struct regmap *regmap;
+
+ parent_name = of_clk_get_parent_name(np, 0);
+
+ of_property_read_string(np, "clock-output-names", &name);
+
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+
+ hw = at91_clk_register_plldiv(regmap, name, parent_name);
+ if (IS_ERR(hw))
+ return;
+
+ of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+}
+CLK_OF_DECLARE(at91sam9x5_clk_plldiv, "atmel,at91sam9x5-clk-plldiv",
+ of_at91sam9x5_clk_plldiv_setup);
+
+static void __init
+of_at91_clk_prog_setup(struct device_node *np,
+ const struct clk_programmable_layout *layout)
+{
+ int num;
+ u32 id;
+ struct clk_hw *hw;
+ unsigned int num_parents;
+ const char *parent_names[PROG_SOURCE_MAX];
+ const char *name;
+ struct device_node *progclknp;
+ struct regmap *regmap;
+
+ num_parents = of_clk_get_parent_count(np);
+ if (num_parents == 0 || num_parents > PROG_SOURCE_MAX)
+ return;
+
+ of_clk_parent_fill(np, parent_names, num_parents);
+
+ num = of_get_child_count(np);
+ if (!num || num > (PROG_ID_MAX + 1))
+ return;
+
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+
+ for_each_child_of_node(np, progclknp) {
+ if (of_property_read_u32(progclknp, "reg", &id))
+ continue;
+
+ if (of_property_read_string(np, "clock-output-names", &name))
+ name = progclknp->name;
+
+ hw = at91_clk_register_programmable(regmap, name,
+ parent_names, num_parents,
+ id, layout);
+ if (IS_ERR(hw))
+ continue;
+
+ of_clk_add_hw_provider(progclknp, of_clk_hw_simple_get, hw);
+ }
+}
+
+static void __init of_at91rm9200_clk_prog_setup(struct device_node *np)
+{
+ of_at91_clk_prog_setup(np, &at91rm9200_programmable_layout);
+}
+CLK_OF_DECLARE(at91rm9200_clk_prog, "atmel,at91rm9200-clk-programmable",
+ of_at91rm9200_clk_prog_setup);
+
+static void __init of_at91sam9g45_clk_prog_setup(struct device_node *np)
+{
+ of_at91_clk_prog_setup(np, &at91sam9g45_programmable_layout);
+}
+CLK_OF_DECLARE(at91sam9g45_clk_prog, "atmel,at91sam9g45-clk-programmable",
+ of_at91sam9g45_clk_prog_setup);
+
+static void __init of_at91sam9x5_clk_prog_setup(struct device_node *np)
+{
+ of_at91_clk_prog_setup(np, &at91sam9x5_programmable_layout);
+}
+CLK_OF_DECLARE(at91sam9x5_clk_prog, "atmel,at91sam9x5-clk-programmable",
+ of_at91sam9x5_clk_prog_setup);
+
+static void __init of_at91sam9260_clk_slow_setup(struct device_node *np)
+{
+ struct clk_hw *hw;
+ const char *parent_names[2];
+ unsigned int num_parents;
+ const char *name = np->name;
+ struct regmap *regmap;
+
+ num_parents = of_clk_get_parent_count(np);
+ if (num_parents != 2)
+ return;
+
+ of_clk_parent_fill(np, parent_names, num_parents);
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+
+ of_property_read_string(np, "clock-output-names", &name);
+
+ hw = at91_clk_register_sam9260_slow(regmap, name, parent_names,
+ num_parents);
+ if (IS_ERR(hw))
+ return;
+
+ of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+}
+CLK_OF_DECLARE(at91sam9260_clk_slow, "atmel,at91sam9260-clk-slow",
+ of_at91sam9260_clk_slow_setup);
+
+#ifdef CONFIG_HAVE_AT91_SMD
+#define SMD_SOURCE_MAX 2
+
+static void __init of_at91sam9x5_clk_smd_setup(struct device_node *np)
+{
+ struct clk_hw *hw;
+ unsigned int num_parents;
+ const char *parent_names[SMD_SOURCE_MAX];
+ const char *name = np->name;
+ struct regmap *regmap;
+
+ num_parents = of_clk_get_parent_count(np);
+ if (num_parents == 0 || num_parents > SMD_SOURCE_MAX)
+ return;
+
+ of_clk_parent_fill(np, parent_names, num_parents);
+
+ of_property_read_string(np, "clock-output-names", &name);
+
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+
+ hw = at91sam9x5_clk_register_smd(regmap, name, parent_names,
+ num_parents);
+ if (IS_ERR(hw))
+ return;
+
+ of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+}
+CLK_OF_DECLARE(at91sam9x5_clk_smd, "atmel,at91sam9x5-clk-smd",
+ of_at91sam9x5_clk_smd_setup);
+#endif /* CONFIG_HAVE_AT91_SMD */
+
+static void __init of_at91rm9200_clk_sys_setup(struct device_node *np)
+{
+ int num;
+ u32 id;
+ struct clk_hw *hw;
+ const char *name;
+ struct device_node *sysclknp;
+ const char *parent_name;
+ struct regmap *regmap;
+
+ num = of_get_child_count(np);
+ if (num > (SYSTEM_MAX_ID + 1))
+ return;
+
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+
+ for_each_child_of_node(np, sysclknp) {
+ if (of_property_read_u32(sysclknp, "reg", &id))
+ continue;
+
+ if (of_property_read_string(np, "clock-output-names", &name))
+ name = sysclknp->name;
+
+ parent_name = of_clk_get_parent_name(sysclknp, 0);
+
+ hw = at91_clk_register_system(regmap, name, parent_name, id);
+ if (IS_ERR(hw))
+ continue;
+
+ of_clk_add_hw_provider(sysclknp, of_clk_hw_simple_get, hw);
+ }
+}
+CLK_OF_DECLARE(at91rm9200_clk_sys, "atmel,at91rm9200-clk-system",
+ of_at91rm9200_clk_sys_setup);
+
+#ifdef CONFIG_HAVE_AT91_USB_CLK
+#define USB_SOURCE_MAX 2
+
+static void __init of_at91sam9x5_clk_usb_setup(struct device_node *np)
+{
+ struct clk_hw *hw;
+ unsigned int num_parents;
+ const char *parent_names[USB_SOURCE_MAX];
+ const char *name = np->name;
+ struct regmap *regmap;
+
+ num_parents = of_clk_get_parent_count(np);
+ if (num_parents == 0 || num_parents > USB_SOURCE_MAX)
+ return;
+
+ of_clk_parent_fill(np, parent_names, num_parents);
+
+ of_property_read_string(np, "clock-output-names", &name);
+
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+
+ hw = at91sam9x5_clk_register_usb(regmap, name, parent_names,
+ num_parents);
+ if (IS_ERR(hw))
+ return;
+
+ of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+}
+CLK_OF_DECLARE(at91sam9x5_clk_usb, "atmel,at91sam9x5-clk-usb",
+ of_at91sam9x5_clk_usb_setup);
+
+static void __init of_at91sam9n12_clk_usb_setup(struct device_node *np)
+{
+ struct clk_hw *hw;
+ const char *parent_name;
+ const char *name = np->name;
+ struct regmap *regmap;
+
+ parent_name = of_clk_get_parent_name(np, 0);
+ if (!parent_name)
+ return;
+
+ of_property_read_string(np, "clock-output-names", &name);
+
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+
+ hw = at91sam9n12_clk_register_usb(regmap, name, parent_name);
+ if (IS_ERR(hw))
+ return;
+
+ of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+}
+CLK_OF_DECLARE(at91sam9n12_clk_usb, "atmel,at91sam9n12-clk-usb",
+ of_at91sam9n12_clk_usb_setup);
+
+static void __init of_at91rm9200_clk_usb_setup(struct device_node *np)
+{
+ struct clk_hw *hw;
+ const char *parent_name;
+ const char *name = np->name;
+ u32 divisors[4] = {0, 0, 0, 0};
+ struct regmap *regmap;
+
+ parent_name = of_clk_get_parent_name(np, 0);
+ if (!parent_name)
+ return;
+
+ of_property_read_u32_array(np, "atmel,clk-divisors", divisors, 4);
+ if (!divisors[0])
+ return;
+
+ of_property_read_string(np, "clock-output-names", &name);
+
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap))
+ return;
+ hw = at91rm9200_clk_register_usb(regmap, name, parent_name, divisors);
+ if (IS_ERR(hw))
+ return;
+
+ of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+}
+CLK_OF_DECLARE(at91rm9200_clk_usb, "atmel,at91rm9200-clk-usb",
+ of_at91rm9200_clk_usb_setup);
+#endif /* CONFIG_HAVE_AT91_USB_CLK */
+
+#ifdef CONFIG_HAVE_AT91_UTMI
+static void __init of_at91sam9x5_clk_utmi_setup(struct device_node *np)
+{
+ struct clk_hw *hw;
+ const char *parent_name;
+ const char *name = np->name;
+ struct regmap *regmap_pmc, *regmap_sfr;
+
+ parent_name = of_clk_get_parent_name(np, 0);
+
+ of_property_read_string(np, "clock-output-names", &name);
+
+ regmap_pmc = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap_pmc))
+ return;
+
+ /*
+ * If the device supports different mainck rates, this value has to be
+ * set in the UTMI Clock Trimming register.
+ * - 9x5: mainck supports several rates but it is indicated that a
+ * 12 MHz is needed in case of USB.
+ * - sama5d3 and sama5d2: mainck supports several rates. Configuring
+ * the FREQ field of the UTMI Clock Trimming register is mandatory.
+ * - sama5d4: mainck is at 12 MHz.
+ *
+ * We only need to retrieve sama5d3 or sama5d2 sfr regmap.
+ */
+ regmap_sfr = syscon_regmap_lookup_by_compatible("atmel,sama5d3-sfr");
+ if (IS_ERR(regmap_sfr)) {
+ regmap_sfr = syscon_regmap_lookup_by_compatible("atmel,sama5d2-sfr");
+ if (IS_ERR(regmap_sfr))
+ regmap_sfr = NULL;
+ }
+
+ hw = at91_clk_register_utmi(regmap_pmc, regmap_sfr, name, parent_name);
+ if (IS_ERR(hw))
+ return;
+
+ of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+}
+CLK_OF_DECLARE(at91sam9x5_clk_utmi, "atmel,at91sam9x5-clk-utmi",
+ of_at91sam9x5_clk_utmi_setup);
+#endif /* CONFIG_HAVE_AT91_UTMI */
projects / platform / kernel / linux-rpi.git / commitdiff