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-rw-r--r--drivers/clk/Makefile1
-rw-r--r--drivers/clk/clk-mb86s7x.c390
2 files changed, 0 insertions, 391 deletions
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index f87d085805a9..c99f363826f0 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -29,7 +29,6 @@ obj-$(CONFIG_COMMON_CLK_GEMINI) += clk-gemini.o
obj-$(CONFIG_ARCH_HIGHBANK) += clk-highbank.o
obj-$(CONFIG_CLK_HSDK) += clk-hsdk-pll.o
obj-$(CONFIG_COMMON_CLK_MAX77686) += clk-max77686.o
-obj-$(CONFIG_ARCH_MB86S7X) += clk-mb86s7x.o
obj-$(CONFIG_ARCH_MOXART) += clk-moxart.o
obj-$(CONFIG_ARCH_NOMADIK) += clk-nomadik.o
obj-$(CONFIG_ARCH_NSPIRE) += clk-nspire.o
diff --git a/drivers/clk/clk-mb86s7x.c b/drivers/clk/clk-mb86s7x.c
deleted file mode 100644
index 2a83a3ff1d09..000000000000
--- a/drivers/clk/clk-mb86s7x.c
+++ /dev/null
@@ -1,390 +0,0 @@
-/*
- * Copyright (C) 2013-2015 FUJITSU SEMICONDUCTOR LIMITED
- * Copyright (C) 2015 Linaro Ltd.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, version 2 of the License.
- *
- * 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.
- */
-
-#include <linux/clkdev.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/of.h>
-#include <linux/cpu.h>
-#include <linux/clk-provider.h>
-#include <linux/spinlock.h>
-#include <linux/module.h>
-#include <linux/topology.h>
-#include <linux/mailbox_client.h>
-#include <linux/platform_device.h>
-
-#include <soc/mb86s7x/scb_mhu.h>
-
-#define to_crg_clk(p) container_of(p, struct crg_clk, hw)
-#define to_clc_clk(p) container_of(p, struct cl_clk, hw)
-
-struct mb86s7x_peri_clk {
- u32 payload_size;
- u32 cntrlr;
- u32 domain;
- u32 port;
- u32 en;
- u64 frequency;
-} __packed __aligned(4);
-
-struct hack_rate {
- unsigned clk_id;
- unsigned long rate;
- int gated;
-};
-
-struct crg_clk {
- struct clk_hw hw;
- u8 cntrlr, domain, port;
-};
-
-static int crg_gate_control(struct clk_hw *hw, int en)
-{
- struct crg_clk *crgclk = to_crg_clk(hw);
- struct mb86s7x_peri_clk cmd;
- int ret;
-
- cmd.payload_size = sizeof(cmd);
- cmd.cntrlr = crgclk->cntrlr;
- cmd.domain = crgclk->domain;
- cmd.port = crgclk->port;
- cmd.en = en;
-
- /* Port is UngatedCLK */
- if (cmd.port == 8)
- return en ? 0 : -EINVAL;
-
- pr_debug("%s:%d CMD Cntrlr-%u Dom-%u Port-%u En-%u}\n",
- __func__, __LINE__, cmd.cntrlr,
- cmd.domain, cmd.port, cmd.en);
-
- ret = mb86s7x_send_packet(CMD_PERI_CLOCK_GATE_SET_REQ,
- &cmd, sizeof(cmd));
- if (ret < 0) {
- pr_err("%s:%d failed!\n", __func__, __LINE__);
- return ret;
- }
-
- pr_debug("%s:%d REP Cntrlr-%u Dom-%u Port-%u En-%u}\n",
- __func__, __LINE__, cmd.cntrlr,
- cmd.domain, cmd.port, cmd.en);
-
- /* If the request was rejected */
- if (cmd.en != en)
- ret = -EINVAL;
- else
- ret = 0;
-
- return ret;
-}
-
-static int crg_port_prepare(struct clk_hw *hw)
-{
- return crg_gate_control(hw, 1);
-}
-
-static void crg_port_unprepare(struct clk_hw *hw)
-{
- crg_gate_control(hw, 0);
-}
-
-static int
-crg_rate_control(struct clk_hw *hw, int set, unsigned long *rate)
-{
- struct crg_clk *crgclk = to_crg_clk(hw);
- struct mb86s7x_peri_clk cmd;
- int code, ret;
-
- cmd.payload_size = sizeof(cmd);
- cmd.cntrlr = crgclk->cntrlr;
- cmd.domain = crgclk->domain;
- cmd.port = crgclk->port;
- cmd.frequency = *rate;
-
- if (set) {
- code = CMD_PERI_CLOCK_RATE_SET_REQ;
- pr_debug("%s:%d CMD Cntrlr-%u Dom-%u Port-%u Rate-SET %lluHz}\n",
- __func__, __LINE__, cmd.cntrlr,
- cmd.domain, cmd.port, cmd.frequency);
- } else {
- code = CMD_PERI_CLOCK_RATE_GET_REQ;
- pr_debug("%s:%d CMD Cntrlr-%u Dom-%u Port-%u Rate-GET}\n",
- __func__, __LINE__, cmd.cntrlr,
- cmd.domain, cmd.port);
- }
-
- ret = mb86s7x_send_packet(code, &cmd, sizeof(cmd));
- if (ret < 0) {
- pr_err("%s:%d failed!\n", __func__, __LINE__);
- return ret;
- }
-
- if (set)
- pr_debug("%s:%d REP Cntrlr-%u Dom-%u Port-%u Rate-SET %lluHz}\n",
- __func__, __LINE__, cmd.cntrlr,
- cmd.domain, cmd.port, cmd.frequency);
- else
- pr_debug("%s:%d REP Cntrlr-%u Dom-%u Port-%u Rate-GOT %lluHz}\n",
- __func__, __LINE__, cmd.cntrlr,
- cmd.domain, cmd.port, cmd.frequency);
-
- *rate = cmd.frequency;
- return 0;
-}
-
-static unsigned long
-crg_port_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
-{
- unsigned long rate;
-
- crg_rate_control(hw, 0, &rate);
-
- return rate;
-}
-
-static long
-crg_port_round_rate(struct clk_hw *hw,
- unsigned long rate, unsigned long *pr)
-{
- return rate;
-}
-
-static int
-crg_port_set_rate(struct clk_hw *hw,
- unsigned long rate, unsigned long parent_rate)
-{
- return crg_rate_control(hw, 1, &rate);
-}
-
-const struct clk_ops crg_port_ops = {
- .prepare = crg_port_prepare,
- .unprepare = crg_port_unprepare,
- .recalc_rate = crg_port_recalc_rate,
- .round_rate = crg_port_round_rate,
- .set_rate = crg_port_set_rate,
-};
-
-struct mb86s70_crg11 {
- struct mutex lock; /* protects CLK populating and searching */
-};
-
-static struct clk *crg11_get(struct of_phandle_args *clkspec, void *data)
-{
- struct mb86s70_crg11 *crg11 = data;
- struct clk_init_data init;
- u32 cntrlr, domain, port;
- struct crg_clk *crgclk;
- struct clk *clk;
- char clkp[20];
-
- if (clkspec->args_count != 3)
- return ERR_PTR(-EINVAL);
-
- cntrlr = clkspec->args[0];
- domain = clkspec->args[1];
- port = clkspec->args[2];
-
- if (port > 7)
- snprintf(clkp, 20, "UngatedCLK%d_%X", cntrlr, domain);
- else
- snprintf(clkp, 20, "CLK%d_%X_%d", cntrlr, domain, port);
-
- mutex_lock(&crg11->lock);
-
- clk = __clk_lookup(clkp);
- if (clk) {
- mutex_unlock(&crg11->lock);
- return clk;
- }
-
- crgclk = kzalloc(sizeof(*crgclk), GFP_KERNEL);
- if (!crgclk) {
- mutex_unlock(&crg11->lock);
- return ERR_PTR(-ENOMEM);
- }
-
- init.name = clkp;
- init.num_parents = 0;
- init.ops = &crg_port_ops;
- init.flags = 0;
- crgclk->hw.init = &init;
- crgclk->cntrlr = cntrlr;
- crgclk->domain = domain;
- crgclk->port = port;
- clk = clk_register(NULL, &crgclk->hw);
- if (IS_ERR(clk))
- pr_err("%s:%d Error!\n", __func__, __LINE__);
- else
- pr_debug("Registered %s\n", clkp);
-
- clk_register_clkdev(clk, clkp, NULL);
- mutex_unlock(&crg11->lock);
- return clk;
-}
-
-static void __init crg_port_init(struct device_node *node)
-{
- struct mb86s70_crg11 *crg11;
-
- crg11 = kzalloc(sizeof(*crg11), GFP_KERNEL);
- if (!crg11)
- return;
-
- mutex_init(&crg11->lock);
-
- of_clk_add_provider(node, crg11_get, crg11);
-}
-CLK_OF_DECLARE(crg11_gate, "fujitsu,mb86s70-crg11", crg_port_init);
-
-struct cl_clk {
- struct clk_hw hw;
- int cluster;
-};
-
-struct mb86s7x_cpu_freq {
- u32 payload_size;
- u32 cluster_class;
- u32 cluster_id;
- u32 cpu_id;
- u64 frequency;
-};
-
-static void mhu_cluster_rate(struct clk_hw *hw, unsigned long *rate, int get)
-{
- struct cl_clk *clc = to_clc_clk(hw);
- struct mb86s7x_cpu_freq cmd;
- int code, ret;
-
- cmd.payload_size = sizeof(cmd);
- cmd.cluster_class = 0;
- cmd.cluster_id = clc->cluster;
- cmd.cpu_id = 0;
- cmd.frequency = *rate;
-
- if (get)
- code = CMD_CPU_CLOCK_RATE_GET_REQ;
- else
- code = CMD_CPU_CLOCK_RATE_SET_REQ;
-
- pr_debug("%s:%d CMD Cl_Class-%u CL_ID-%u CPU_ID-%u Freq-%llu}\n",
- __func__, __LINE__, cmd.cluster_class,
- cmd.cluster_id, cmd.cpu_id, cmd.frequency);
-
- ret = mb86s7x_send_packet(code, &cmd, sizeof(cmd));
- if (ret < 0) {
- pr_err("%s:%d failed!\n", __func__, __LINE__);
- return;
- }
-
- pr_debug("%s:%d REP Cl_Class-%u CL_ID-%u CPU_ID-%u Freq-%llu}\n",
- __func__, __LINE__, cmd.cluster_class,
- cmd.cluster_id, cmd.cpu_id, cmd.frequency);
-
- *rate = cmd.frequency;
-}
-
-static unsigned long
-clc_recalc_rate(struct clk_hw *hw, unsigned long unused)
-{
- unsigned long rate;
-
- mhu_cluster_rate(hw, &rate, 1);
- return rate;
-}
-
-static long
-clc_round_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long *unused)
-{
- return rate;
-}
-
-static int
-clc_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long unused)
-{
- unsigned long res = rate;
-
- mhu_cluster_rate(hw, &res, 0);
-
- return (res == rate) ? 0 : -EINVAL;
-}
-
-static struct clk_ops clk_clc_ops = {
- .recalc_rate = clc_recalc_rate,
- .round_rate = clc_round_rate,
- .set_rate = clc_set_rate,
-};
-
-static struct clk_hw *mb86s7x_clclk_register(struct device *cpu_dev)
-{
- struct clk_init_data init;
- struct cl_clk *clc;
- int ret;
-
- clc = kzalloc(sizeof(*clc), GFP_KERNEL);
- if (!clc)
- return ERR_PTR(-ENOMEM);
-
- clc->hw.init = &init;
- clc->cluster = topology_physical_package_id(cpu_dev->id);
-
- init.name = dev_name(cpu_dev);
- init.ops = &clk_clc_ops;
- init.flags = CLK_GET_RATE_NOCACHE;
- init.num_parents = 0;
-
- ret = devm_clk_hw_register(cpu_dev, &clc->hw);
- if (ret)
- return ERR_PTR(ret);
- return &clc->hw;
-}
-
-static int mb86s7x_clclk_of_init(void)
-{
- int cpu, ret = -ENODEV;
- struct device_node *np;
- struct clk_hw *hw;
-
- np = of_find_compatible_node(NULL, NULL, "fujitsu,mb86s70-scb-1.0");
- if (!np || !of_device_is_available(np))
- goto exit;
-
- for_each_possible_cpu(cpu) {
- struct device *cpu_dev = get_cpu_device(cpu);
-
- if (!cpu_dev) {
- pr_err("failed to get cpu%d device\n", cpu);
- continue;
- }
-
- hw = mb86s7x_clclk_register(cpu_dev);
- if (IS_ERR(hw)) {
- pr_err("failed to register cpu%d clock\n", cpu);
- continue;
- }
- if (clk_hw_register_clkdev(hw, NULL, dev_name(cpu_dev))) {
- pr_err("failed to register cpu%d clock lookup\n", cpu);
- continue;
- }
- pr_debug("registered clk for %s\n", dev_name(cpu_dev));
- }
- ret = 0;
-
- platform_device_register_simple("arm-bL-cpufreq-dt", -1, NULL, 0);
-exit:
- of_node_put(np);
- return ret;
-}
-module_init(mb86s7x_clclk_of_init);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-17 20:37:49 +0100