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-rw-r--r--drivers/clk/Makefile1
-rw-r--r--drivers/clk/at91/pmc.c20
-rw-r--r--drivers/clk/at91/pmc.h1
-rw-r--r--drivers/clk/bcm/clk-kona.c28
-rw-r--r--drivers/clk/bcm/clk-kona.h1
-rw-r--r--drivers/clk/clk-si5351.c63
-rw-r--r--drivers/clk/clk.c8
-rw-r--r--drivers/clk/pistachio/Makefile3
-rw-r--r--drivers/clk/pistachio/clk-pistachio.c329
-rw-r--r--drivers/clk/pistachio/clk-pll.c401
-rw-r--r--drivers/clk/pistachio/clk.c140
-rw-r--r--drivers/clk/pistachio/clk.h174
-rw-r--r--drivers/clk/qcom/gcc-msm8916.c4
-rw-r--r--drivers/clk/samsung/Makefile2
-rw-r--r--drivers/clk/samsung/clk-exynos5420.c1
-rw-r--r--drivers/clk/samsung/clk-exynos5433.c12
-rw-r--r--drivers/clk/shmobile/Makefile1
-rw-r--r--drivers/clk/shmobile/clk-r8a7778.c143
18 files changed, 1282 insertions, 50 deletions
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 492bcabe7930..3d00c25382c5 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -56,6 +56,7 @@ obj-$(CONFIG_ARCH_MMP) += mmp/
endif
obj-$(CONFIG_PLAT_ORION) += mvebu/
obj-$(CONFIG_ARCH_MXS) += mxs/
+obj-$(CONFIG_MACH_PISTACHIO) += pistachio/
obj-$(CONFIG_COMMON_CLK_PXA) += pxa/
obj-$(CONFIG_COMMON_CLK_QCOM) += qcom/
obj-$(CONFIG_ARCH_ROCKCHIP) += rockchip/
diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c
index f07c8152e5cc..3f27d21fb729 100644
--- a/drivers/clk/at91/pmc.c
+++ b/drivers/clk/at91/pmc.c
@@ -89,12 +89,29 @@ static int pmc_irq_set_type(struct irq_data *d, unsigned type)
return 0;
}
+static void pmc_irq_suspend(struct irq_data *d)
+{
+ struct at91_pmc *pmc = irq_data_get_irq_chip_data(d);
+
+ pmc->imr = pmc_read(pmc, AT91_PMC_IMR);
+ pmc_write(pmc, AT91_PMC_IDR, pmc->imr);
+}
+
+static void pmc_irq_resume(struct irq_data *d)
+{
+ struct at91_pmc *pmc = irq_data_get_irq_chip_data(d);
+
+ pmc_write(pmc, AT91_PMC_IER, pmc->imr);
+}
+
static struct irq_chip pmc_irq = {
.name = "PMC",
.irq_disable = pmc_irq_mask,
.irq_mask = pmc_irq_mask,
.irq_unmask = pmc_irq_unmask,
.irq_set_type = pmc_irq_set_type,
+ .irq_suspend = pmc_irq_suspend,
+ .irq_resume = pmc_irq_resume,
};
static struct lock_class_key pmc_lock_class;
@@ -224,7 +241,8 @@ static struct at91_pmc *__init at91_pmc_init(struct device_node *np,
goto out_free_pmc;
pmc_write(pmc, AT91_PMC_IDR, 0xffffffff);
- if (request_irq(pmc->virq, pmc_irq_handler, IRQF_SHARED, "pmc", pmc))
+ if (request_irq(pmc->virq, pmc_irq_handler,
+ IRQF_SHARED | IRQF_COND_SUSPEND, "pmc", pmc))
goto out_remove_irqdomain;
return pmc;
diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h
index af2c99195541..eb8e5dc9076d 100644
--- a/drivers/clk/at91/pmc.h
+++ b/drivers/clk/at91/pmc.h
@@ -33,6 +33,7 @@ struct at91_pmc {
spinlock_t lock;
const struct at91_pmc_caps *caps;
struct irq_domain *irqdomain;
+ u32 imr;
};
static inline void pmc_lock(struct at91_pmc *pmc)
diff --git a/drivers/clk/bcm/clk-kona.c b/drivers/clk/bcm/clk-kona.c
index 05abae89262e..a0ef4f75d457 100644
--- a/drivers/clk/bcm/clk-kona.c
+++ b/drivers/clk/bcm/clk-kona.c
@@ -15,6 +15,7 @@
#include "clk-kona.h"
#include <linux/delay.h>
+#include <linux/kernel.h>
/*
* "Policies" affect the frequencies of bus clocks provided by a
@@ -51,21 +52,6 @@ static inline u32 bitfield_replace(u32 reg_val, u32 shift, u32 width, u32 val)
/* Divider and scaling helpers */
-/*
- * Implement DIV_ROUND_CLOSEST() for 64-bit dividend and both values
- * unsigned. Note that unlike do_div(), the remainder is discarded
- * and the return value is the quotient (not the remainder).
- */
-u64 do_div_round_closest(u64 dividend, unsigned long divisor)
-{
- u64 result;
-
- result = dividend + ((u64)divisor >> 1);
- (void)do_div(result, divisor);
-
- return result;
-}
-
/* Convert a divider into the scaled divisor value it represents. */
static inline u64 scaled_div_value(struct bcm_clk_div *div, u32 reg_div)
{
@@ -87,7 +73,7 @@ u64 scaled_div_build(struct bcm_clk_div *div, u32 div_value, u32 billionths)
combined = (u64)div_value * BILLION + billionths;
combined <<= div->u.s.frac_width;
- return do_div_round_closest(combined, BILLION);
+ return DIV_ROUND_CLOSEST_ULL(combined, BILLION);
}
/* The scaled minimum divisor representable by a divider */
@@ -731,7 +717,7 @@ static unsigned long clk_recalc_rate(struct ccu_data *ccu,
scaled_rate = scale_rate(pre_div, parent_rate);
scaled_rate = scale_rate(div, scaled_rate);
scaled_div = divider_read_scaled(ccu, pre_div);
- scaled_parent_rate = do_div_round_closest(scaled_rate,
+ scaled_parent_rate = DIV_ROUND_CLOSEST_ULL(scaled_rate,
scaled_div);
} else {
scaled_parent_rate = scale_rate(div, parent_rate);
@@ -743,7 +729,7 @@ static unsigned long clk_recalc_rate(struct ccu_data *ccu,
* rate.
*/
scaled_div = divider_read_scaled(ccu, div);
- result = do_div_round_closest(scaled_parent_rate, scaled_div);
+ result = DIV_ROUND_CLOSEST_ULL(scaled_parent_rate, scaled_div);
return (unsigned long)result;
}
@@ -790,7 +776,7 @@ static long round_rate(struct ccu_data *ccu, struct bcm_clk_div *div,
scaled_rate = scale_rate(pre_div, parent_rate);
scaled_rate = scale_rate(div, scaled_rate);
scaled_pre_div = divider_read_scaled(ccu, pre_div);
- scaled_parent_rate = do_div_round_closest(scaled_rate,
+ scaled_parent_rate = DIV_ROUND_CLOSEST_ULL(scaled_rate,
scaled_pre_div);
} else {
scaled_parent_rate = scale_rate(div, parent_rate);
@@ -802,7 +788,7 @@ static long round_rate(struct ccu_data *ccu, struct bcm_clk_div *div,
* the best we can do.
*/
if (!divider_is_fixed(div)) {
- best_scaled_div = do_div_round_closest(scaled_parent_rate,
+ best_scaled_div = DIV_ROUND_CLOSEST_ULL(scaled_parent_rate,
rate);
min_scaled_div = scaled_div_min(div);
max_scaled_div = scaled_div_max(div);
@@ -815,7 +801,7 @@ static long round_rate(struct ccu_data *ccu, struct bcm_clk_div *div,
}
/* OK, figure out the resulting rate */
- result = do_div_round_closest(scaled_parent_rate, best_scaled_div);
+ result = DIV_ROUND_CLOSEST_ULL(scaled_parent_rate, best_scaled_div);
if (scaled_div)
*scaled_div = best_scaled_div;
diff --git a/drivers/clk/bcm/clk-kona.h b/drivers/clk/bcm/clk-kona.h
index 2537b3072910..6849a64baf6d 100644
--- a/drivers/clk/bcm/clk-kona.h
+++ b/drivers/clk/bcm/clk-kona.h
@@ -503,7 +503,6 @@ extern struct clk_ops kona_peri_clk_ops;
/* Externally visible functions */
-extern u64 do_div_round_closest(u64 dividend, unsigned long divisor);
extern u64 scaled_div_max(struct bcm_clk_div *div);
extern u64 scaled_div_build(struct bcm_clk_div *div, u32 div_value,
u32 billionths);
diff --git a/drivers/clk/clk-si5351.c b/drivers/clk/clk-si5351.c
index 44ea107cfc67..30335d3b99af 100644
--- a/drivers/clk/clk-si5351.c
+++ b/drivers/clk/clk-si5351.c
@@ -1128,13 +1128,6 @@ static int si5351_dt_parse(struct i2c_client *client,
if (!pdata)
return -ENOMEM;
- pdata->clk_xtal = of_clk_get(np, 0);
- if (!IS_ERR(pdata->clk_xtal))
- clk_put(pdata->clk_xtal);
- pdata->clk_clkin = of_clk_get(np, 1);
- if (!IS_ERR(pdata->clk_clkin))
- clk_put(pdata->clk_clkin);
-
/*
* property silabs,pll-source : <num src>, [<..>]
* allow to selectively set pll source
@@ -1328,8 +1321,22 @@ static int si5351_i2c_probe(struct i2c_client *client,
i2c_set_clientdata(client, drvdata);
drvdata->client = client;
drvdata->variant = variant;
- drvdata->pxtal = pdata->clk_xtal;
- drvdata->pclkin = pdata->clk_clkin;
+ drvdata->pxtal = devm_clk_get(&client->dev, "xtal");
+ drvdata->pclkin = devm_clk_get(&client->dev, "clkin");
+
+ if (PTR_ERR(drvdata->pxtal) == -EPROBE_DEFER ||
+ PTR_ERR(drvdata->pclkin) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+
+ /*
+ * Check for valid parent clock: VARIANT_A and VARIANT_B need XTAL,
+ * VARIANT_C can have CLKIN instead.
+ */
+ if (IS_ERR(drvdata->pxtal) &&
+ (drvdata->variant != SI5351_VARIANT_C || IS_ERR(drvdata->pclkin))) {
+ dev_err(&client->dev, "missing parent clock\n");
+ return -EINVAL;
+ }
drvdata->regmap = devm_regmap_init_i2c(client, &si5351_regmap_config);
if (IS_ERR(drvdata->regmap)) {
@@ -1393,6 +1400,11 @@ static int si5351_i2c_probe(struct i2c_client *client,
}
}
+ if (!IS_ERR(drvdata->pxtal))
+ clk_prepare_enable(drvdata->pxtal);
+ if (!IS_ERR(drvdata->pclkin))
+ clk_prepare_enable(drvdata->pclkin);
+
/* register xtal input clock gate */
memset(&init, 0, sizeof(init));
init.name = si5351_input_names[0];
@@ -1407,7 +1419,8 @@ static int si5351_i2c_probe(struct i2c_client *client,
clk = devm_clk_register(&client->dev, &drvdata->xtal);
if (IS_ERR(clk)) {
dev_err(&client->dev, "unable to register %s\n", init.name);
- return PTR_ERR(clk);
+ ret = PTR_ERR(clk);
+ goto err_clk;
}
/* register clkin input clock gate */
@@ -1425,7 +1438,8 @@ static int si5351_i2c_probe(struct i2c_client *client,
if (IS_ERR(clk)) {
dev_err(&client->dev, "unable to register %s\n",
init.name);
- return PTR_ERR(clk);
+ ret = PTR_ERR(clk);
+ goto err_clk;
}
}
@@ -1447,7 +1461,8 @@ static int si5351_i2c_probe(struct i2c_client *client,
clk = devm_clk_register(&client->dev, &drvdata->pll[0].hw);
if (IS_ERR(clk)) {
dev_err(&client->dev, "unable to register %s\n", init.name);
- return -EINVAL;
+ ret = PTR_ERR(clk);
+ goto err_clk;
}
/* register PLLB or VXCO (Si5351B) */
@@ -1471,7 +1486,8 @@ static int si5351_i2c_probe(struct i2c_client *client,
clk = devm_clk_register(&client->dev, &drvdata->pll[1].hw);
if (IS_ERR(clk)) {
dev_err(&client->dev, "unable to register %s\n", init.name);
- return -EINVAL;
+ ret = PTR_ERR(clk);
+ goto err_clk;
}
/* register clk multisync and clk out divider */
@@ -1492,8 +1508,10 @@ static int si5351_i2c_probe(struct i2c_client *client,
num_clocks * sizeof(*drvdata->onecell.clks), GFP_KERNEL);
if (WARN_ON(!drvdata->msynth || !drvdata->clkout ||
- !drvdata->onecell.clks))
- return -ENOMEM;
+ !drvdata->onecell.clks)) {
+ ret = -ENOMEM;
+ goto err_clk;
+ }
for (n = 0; n < num_clocks; n++) {
drvdata->msynth[n].num = n;
@@ -1511,7 +1529,8 @@ static int si5351_i2c_probe(struct i2c_client *client,
if (IS_ERR(clk)) {
dev_err(&client->dev, "unable to register %s\n",
init.name);
- return -EINVAL;
+ ret = PTR_ERR(clk);
+ goto err_clk;
}
}
@@ -1538,7 +1557,8 @@ static int si5351_i2c_probe(struct i2c_client *client,
if (IS_ERR(clk)) {
dev_err(&client->dev, "unable to register %s\n",
init.name);
- return -EINVAL;
+ ret = PTR_ERR(clk);
+ goto err_clk;
}
drvdata->onecell.clks[n] = clk;
@@ -1557,10 +1577,17 @@ static int si5351_i2c_probe(struct i2c_client *client,
&drvdata->onecell);
if (ret) {
dev_err(&client->dev, "unable to add clk provider\n");
- return ret;
+ goto err_clk;
}
return 0;
+
+err_clk:
+ if (!IS_ERR(drvdata->pxtal))
+ clk_disable_unprepare(drvdata->pxtal);
+ if (!IS_ERR(drvdata->pclkin))
+ clk_disable_unprepare(drvdata->pclkin);
+ return ret;
}
static const struct i2c_device_id si5351_i2c_ids[] = {
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 459ce9da13e0..5b0f41868b42 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -1475,8 +1475,10 @@ static struct clk_core *__clk_set_parent_before(struct clk_core *clk,
*/
if (clk->prepare_count) {
clk_core_prepare(parent);
+ flags = clk_enable_lock();
clk_core_enable(parent);
clk_core_enable(clk);
+ clk_enable_unlock(flags);
}
/* update the clk tree topology */
@@ -1491,13 +1493,17 @@ static void __clk_set_parent_after(struct clk_core *core,
struct clk_core *parent,
struct clk_core *old_parent)
{
+ unsigned long flags;
+
/*
* Finish the migration of prepare state and undo the changes done
* for preventing a race with clk_enable().
*/
if (core->prepare_count) {
+ flags = clk_enable_lock();
clk_core_disable(core);
clk_core_disable(old_parent);
+ clk_enable_unlock(flags);
clk_core_unprepare(old_parent);
}
}
@@ -1525,8 +1531,10 @@ static int __clk_set_parent(struct clk_core *clk, struct clk_core *parent,
clk_enable_unlock(flags);
if (clk->prepare_count) {
+ flags = clk_enable_lock();
clk_core_disable(clk);
clk_core_disable(parent);
+ clk_enable_unlock(flags);
clk_core_unprepare(parent);
}
return ret;
diff --git a/drivers/clk/pistachio/Makefile b/drivers/clk/pistachio/Makefile
new file mode 100644
index 000000000000..f1e151fbef65
--- /dev/null
+++ b/drivers/clk/pistachio/Makefile
@@ -0,0 +1,3 @@
+obj-y += clk.o
+obj-y += clk-pll.o
+obj-y += clk-pistachio.o
diff --git a/drivers/clk/pistachio/clk-pistachio.c b/drivers/clk/pistachio/clk-pistachio.c
new file mode 100644
index 000000000000..8c0fe8828f99
--- /dev/null
+++ b/drivers/clk/pistachio/clk-pistachio.c
@@ -0,0 +1,329 @@
+/*
+ * Pistachio SoC clock controllers
+ *
+ * Copyright (C) 2014 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/of.h>
+
+#include <dt-bindings/clock/pistachio-clk.h>
+
+#include "clk.h"
+
+static struct pistachio_gate pistachio_gates[] __initdata = {
+ GATE(CLK_MIPS, "mips", "mips_div", 0x104, 0),
+ GATE(CLK_AUDIO_IN, "audio_in", "audio_clk_in_gate", 0x104, 1),
+ GATE(CLK_AUDIO, "audio", "audio_div", 0x104, 2),
+ GATE(CLK_I2S, "i2s", "i2s_div", 0x104, 3),
+ GATE(CLK_SPDIF, "spdif", "spdif_div", 0x104, 4),
+ GATE(CLK_AUDIO_DAC, "audio_dac", "audio_dac_div", 0x104, 5),
+ GATE(CLK_RPU_V, "rpu_v", "rpu_v_div", 0x104, 6),
+ GATE(CLK_RPU_L, "rpu_l", "rpu_l_div", 0x104, 7),
+ GATE(CLK_RPU_SLEEP, "rpu_sleep", "rpu_sleep_div", 0x104, 8),
+ GATE(CLK_WIFI_PLL_GATE, "wifi_pll_gate", "wifi_pll_mux", 0x104, 9),
+ GATE(CLK_RPU_CORE, "rpu_core", "rpu_core_div", 0x104, 10),
+ GATE(CLK_WIFI_ADC, "wifi_adc", "wifi_div8_mux", 0x104, 11),
+ GATE(CLK_WIFI_DAC, "wifi_dac", "wifi_div4_mux", 0x104, 12),
+ GATE(CLK_USB_PHY, "usb_phy", "usb_phy_div", 0x104, 13),
+ GATE(CLK_ENET_IN, "enet_in", "enet_clk_in_gate", 0x104, 14),
+ GATE(CLK_ENET, "enet", "enet_div", 0x104, 15),
+ GATE(CLK_UART0, "uart0", "uart0_div", 0x104, 16),
+ GATE(CLK_UART1, "uart1", "uart1_div", 0x104, 17),
+ GATE(CLK_PERIPH_SYS, "periph_sys", "sys_internal_div", 0x104, 18),
+ GATE(CLK_SPI0, "spi0", "spi0_div", 0x104, 19),
+ GATE(CLK_SPI1, "spi1", "spi1_div", 0x104, 20),
+ GATE(CLK_EVENT_TIMER, "event_timer", "event_timer_div", 0x104, 21),
+ GATE(CLK_AUX_ADC_INTERNAL, "aux_adc_internal", "sys_internal_div",
+ 0x104, 22),
+ GATE(CLK_AUX_ADC, "aux_adc", "aux_adc_div", 0x104, 23),
+ GATE(CLK_SD_HOST, "sd_host", "sd_host_div", 0x104, 24),
+ GATE(CLK_BT, "bt", "bt_div", 0x104, 25),
+ GATE(CLK_BT_DIV4, "bt_div4", "bt_div4_div", 0x104, 26),
+ GATE(CLK_BT_DIV8, "bt_div8", "bt_div8_div", 0x104, 27),
+ GATE(CLK_BT_1MHZ, "bt_1mhz", "bt_1mhz_div", 0x104, 28),
+};
+
+static struct pistachio_fixed_factor pistachio_ffs[] __initdata = {
+ FIXED_FACTOR(CLK_WIFI_DIV4, "wifi_div4", "wifi_pll", 4),
+ FIXED_FACTOR(CLK_WIFI_DIV8, "wifi_div8", "wifi_pll", 8),
+};
+
+static struct pistachio_div pistachio_divs[] __initdata = {
+ DIV(CLK_MIPS_INTERNAL_DIV, "mips_internal_div", "mips_pll_mux",
+ 0x204, 2),
+ DIV(CLK_MIPS_DIV, "mips_div", "mips_internal_div", 0x208, 8),
+ DIV_F(CLK_AUDIO_DIV, "audio_div", "audio_mux",
+ 0x20c, 8, CLK_DIVIDER_ROUND_CLOSEST),
+ DIV_F(CLK_I2S_DIV, "i2s_div", "audio_pll_mux",
+ 0x210, 8, CLK_DIVIDER_ROUND_CLOSEST),
+ DIV_F(CLK_SPDIF_DIV, "spdif_div", "audio_pll_mux",
+ 0x214, 8, CLK_DIVIDER_ROUND_CLOSEST),
+ DIV_F(CLK_AUDIO_DAC_DIV, "audio_dac_div", "audio_pll_mux",
+ 0x218, 8, CLK_DIVIDER_ROUND_CLOSEST),
+ DIV(CLK_RPU_V_DIV, "rpu_v_div", "rpu_v_pll_mux", 0x21c, 2),
+ DIV(CLK_RPU_L_DIV, "rpu_l_div", "rpu_l_mux", 0x220, 2),
+ DIV(CLK_RPU_SLEEP_DIV, "rpu_sleep_div", "xtal", 0x224, 10),
+ DIV(CLK_RPU_CORE_DIV, "rpu_core_div", "rpu_core_mux", 0x228, 3),
+ DIV(CLK_USB_PHY_DIV, "usb_phy_div", "sys_internal_div", 0x22c, 6),
+ DIV(CLK_ENET_DIV, "enet_div", "enet_mux", 0x230, 6),
+ DIV_F(CLK_UART0_INTERNAL_DIV, "uart0_internal_div", "sys_pll_mux",
+ 0x234, 3, CLK_DIVIDER_ROUND_CLOSEST),
+ DIV_F(CLK_UART0_DIV, "uart0_div", "uart0_internal_div", 0x238, 10,
+ CLK_DIVIDER_ROUND_CLOSEST),
+ DIV_F(CLK_UART1_INTERNAL_DIV, "uart1_internal_div", "sys_pll_mux",
+ 0x23c, 3, CLK_DIVIDER_ROUND_CLOSEST),
+ DIV_F(CLK_UART1_DIV, "uart1_div", "uart1_internal_div", 0x240, 10,
+ CLK_DIVIDER_ROUND_CLOSEST),
+ DIV(CLK_SYS_INTERNAL_DIV, "sys_internal_div", "sys_pll_mux", 0x244, 3),
+ DIV(CLK_SPI0_INTERNAL_DIV, "spi0_internal_div", "sys_pll_mux",
+ 0x248, 3),
+ DIV(CLK_SPI0_DIV, "spi0_div", "spi0_internal_div", 0x24c, 7),
+ DIV(CLK_SPI1_INTERNAL_DIV, "spi1_internal_div", "sys_pll_mux",
+ 0x250, 3),
+ DIV(CLK_SPI1_DIV, "spi1_div", "spi1_internal_div", 0x254, 7),
+ DIV(CLK_EVENT_TIMER_INTERNAL_DIV, "event_timer_internal_div",
+ "event_timer_mux", 0x258, 3),
+ DIV(CLK_EVENT_TIMER_DIV, "event_timer_div", "event_timer_internal_div",
+ 0x25c, 12),
+ DIV(CLK_AUX_ADC_INTERNAL_DIV, "aux_adc_internal_div",
+ "aux_adc_internal", 0x260, 3),
+ DIV(CLK_AUX_ADC_DIV, "aux_adc_div", "aux_adc_internal_div", 0x264, 10),
+ DIV(CLK_SD_HOST_DIV, "sd_host_div", "sd_host_mux", 0x268, 6),
+ DIV(CLK_BT_DIV, "bt_div", "bt_pll_mux", 0x26c, 6),
+ DIV(CLK_BT_DIV4_DIV, "bt_div4_div", "bt_pll_mux", 0x270, 6),
+ DIV(CLK_BT_DIV8_DIV, "bt_div8_div", "bt_pll_mux", 0x274, 6),
+ DIV(CLK_BT_1MHZ_INTERNAL_DIV, "bt_1mhz_internal_div", "bt_pll_mux",
+ 0x278, 3),
+ DIV(CLK_BT_1MHZ_DIV, "bt_1mhz_div", "bt_1mhz_internal_div", 0x27c, 10),
+};
+
+PNAME(mux_xtal_audio_refclk) = { "xtal", "audio_clk_in_gate" };
+PNAME(mux_xtal_mips) = { "xtal", "mips_pll" };
+PNAME(mux_xtal_audio) = { "xtal", "audio_pll", "audio_in" };
+PNAME(mux_audio_debug) = { "audio_pll_mux", "debug_mux" };
+PNAME(mux_xtal_rpu_v) = { "xtal", "rpu_v_pll" };
+PNAME(mux_xtal_rpu_l) = { "xtal", "rpu_l_pll" };
+PNAME(mux_rpu_l_mips) = { "rpu_l_pll_mux", "mips_pll_mux" };
+PNAME(mux_xtal_wifi) = { "xtal", "wifi_pll" };
+PNAME(mux_xtal_wifi_div4) = { "xtal", "wifi_div4" };
+PNAME(mux_xtal_wifi_div8) = { "xtal", "wifi_div8" };
+PNAME(mux_wifi_div4_rpu_l) = { "wifi_pll_gate", "wifi_div4_mux",
+ "rpu_l_pll_mux" };
+PNAME(mux_xtal_sys) = { "xtal", "sys_pll" };
+PNAME(mux_sys_enet) = { "sys_internal_div", "enet_in" };
+PNAME(mux_audio_sys) = { "audio_pll_mux", "sys_internal_div" };
+PNAME(mux_sys_bt) = { "sys_internal_div", "bt_pll_mux" };
+PNAME(mux_xtal_bt) = { "xtal", "bt_pll" };
+
+static struct pistachio_mux pistachio_muxes[] __initdata = {
+ MUX(CLK_AUDIO_REF_MUX, "audio_refclk_mux", mux_xtal_audio_refclk,
+ 0x200, 0),
+ MUX(CLK_MIPS_PLL_MUX, "mips_pll_mux", mux_xtal_mips, 0x200, 1),
+ MUX(CLK_AUDIO_PLL_MUX, "audio_pll_mux", mux_xtal_audio, 0x200, 2),
+ MUX(CLK_AUDIO_MUX, "audio_mux", mux_audio_debug, 0x200, 4),
+ MUX(CLK_RPU_V_PLL_MUX, "rpu_v_pll_mux", mux_xtal_rpu_v, 0x200, 5),
+ MUX(CLK_RPU_L_PLL_MUX, "rpu_l_pll_mux", mux_xtal_rpu_l, 0x200, 6),
+ MUX(CLK_RPU_L_MUX, "rpu_l_mux", mux_rpu_l_mips, 0x200, 7),
+ MUX(CLK_WIFI_PLL_MUX, "wifi_pll_mux", mux_xtal_wifi, 0x200, 8),
+ MUX(CLK_WIFI_DIV4_MUX, "wifi_div4_mux", mux_xtal_wifi_div4, 0x200, 9),
+ MUX(CLK_WIFI_DIV8_MUX, "wifi_div8_mux", mux_xtal_wifi_div8, 0x200, 10),
+ MUX(CLK_RPU_CORE_MUX, "rpu_core_mux", mux_wifi_div4_rpu_l, 0x200, 11),
+ MUX(CLK_SYS_PLL_MUX, "sys_pll_mux", mux_xtal_sys, 0x200, 13),
+ MUX(CLK_ENET_MUX, "enet_mux", mux_sys_enet, 0x200, 14),
+ MUX(CLK_EVENT_TIMER_MUX, "event_timer_mux", mux_audio_sys, 0x200, 15),
+ MUX(CLK_SD_HOST_MUX, "sd_host_mux", mux_sys_bt, 0x200, 16),
+ MUX(CLK_BT_PLL_MUX, "bt_pll_mux", mux_xtal_bt, 0x200, 17),
+};
+
+static struct pistachio_pll pistachio_plls[] __initdata = {
+ PLL_FIXED(CLK_MIPS_PLL, "mips_pll", "xtal", PLL_GF40LP_LAINT, 0x0),
+ PLL_FIXED(CLK_AUDIO_PLL, "audio_pll", "audio_refclk_mux",
+ PLL_GF40LP_FRAC, 0xc),
+ PLL_FIXED(CLK_RPU_V_PLL, "rpu_v_pll", "xtal", PLL_GF40LP_LAINT, 0x20),
+ PLL_FIXED(CLK_RPU_L_PLL, "rpu_l_pll", "xtal", PLL_GF40LP_LAINT, 0x2c),
+ PLL_FIXED(CLK_SYS_PLL, "sys_pll", "xtal", PLL_GF40LP_FRAC, 0x38),
+ PLL_FIXED(CLK_WIFI_PLL, "wifi_pll", "xtal", PLL_GF40LP_FRAC, 0x4c),
+ PLL_FIXED(CLK_BT_PLL, "bt_pll", "xtal", PLL_GF40LP_LAINT, 0x60),
+};
+
+PNAME(mux_debug) = { "mips_pll_mux", "rpu_v_pll_mux",
+ "rpu_l_pll_mux", "sys_pll_mux",
+ "wifi_pll_mux", "bt_pll_mux" };
+static u32 mux_debug_idx[] = { 0x0, 0x1, 0x2, 0x4, 0x8, 0x10 };
+
+static unsigned int pistachio_critical_clks[] __initdata = {
+ CLK_MIPS,
+ CLK_PERIPH_SYS,
+};
+
+static void __init pistachio_clk_init(struct device_node *np)
+{
+ struct pistachio_clk_provider *p;
+ struct clk *debug_clk;
+
+ p = pistachio_clk_alloc_provider(np, CLK_NR_CLKS);
+ if (!p)
+ return;
+
+ pistachio_clk_register_pll(p, pistachio_plls,
+ ARRAY_SIZE(pistachio_plls));
+ pistachio_clk_register_mux(p, pistachio_muxes,
+ ARRAY_SIZE(pistachio_muxes));
+ pistachio_clk_register_div(p, pistachio_divs,
+ ARRAY_SIZE(pistachio_divs));
+ pistachio_clk_register_fixed_factor(p, pistachio_ffs,
+ ARRAY_SIZE(pistachio_ffs));
+ pistachio_clk_register_gate(p, pistachio_gates,
+ ARRAY_SIZE(pistachio_gates));
+
+ debug_clk = clk_register_mux_table(NULL, "debug_mux", mux_debug,
+ ARRAY_SIZE(mux_debug),
+ CLK_SET_RATE_NO_REPARENT,
+ p->base + 0x200, 18, 0x1f, 0,
+ mux_debug_idx, NULL);
+ p->clk_data.clks[CLK_DEBUG_MUX] = debug_clk;
+
+ pistachio_clk_register_provider(p);
+
+ pistachio_clk_force_enable(p, pistachio_critical_clks,
+ ARRAY_SIZE(pistachio_critical_clks));
+}
+CLK_OF_DECLARE(pistachio_clk, "img,pistachio-clk", pistachio_clk_init);
+
+static struct pistachio_gate pistachio_periph_gates[] __initdata = {
+ GATE(PERIPH_CLK_SYS, "sys", "periph_sys", 0x100, 0),
+ GATE(PERIPH_CLK_SYS_BUS, "bus_sys", "periph_sys", 0x100, 1),
+ GATE(PERIPH_CLK_DDR, "ddr", "periph_sys", 0x100, 2),
+ GATE(PERIPH_CLK_ROM, "rom", "rom_div", 0x100, 3),
+ GATE(PERIPH_CLK_COUNTER_FAST, "counter_fast", "counter_fast_div",
+ 0x100, 4),
+ GATE(PERIPH_CLK_COUNTER_SLOW, "counter_slow", "counter_slow_div",
+ 0x100, 5),
+ GATE(PERIPH_CLK_IR, "ir", "ir_div", 0x100, 6),
+ GATE(PERIPH_CLK_WD, "wd", "wd_div", 0x100, 7),
+ GATE(PERIPH_CLK_PDM, "pdm", "pdm_div", 0x100, 8),
+ GATE(PERIPH_CLK_PWM, "pwm", "pwm_div", 0x100, 9),
+ GATE(PERIPH_CLK_I2C0, "i2c0", "i2c0_div", 0x100, 10),
+ GATE(PERIPH_CLK_I2C1, "i2c1", "i2c1_div", 0x100, 11),
+ GATE(PERIPH_CLK_I2C2, "i2c2", "i2c2_div", 0x100, 12),
+ GATE(PERIPH_CLK_I2C3, "i2c3", "i2c3_div", 0x100, 13),
+};
+
+static struct pistachio_div pistachio_periph_divs[] __initdata = {
+ DIV(PERIPH_CLK_ROM_DIV, "rom_div", "periph_sys", 0x10c, 7),
+ DIV(PERIPH_CLK_COUNTER_FAST_DIV, "counter_fast_div", "periph_sys",
+ 0x110, 7),
+ DIV(PERIPH_CLK_COUNTER_SLOW_PRE_DIV, "counter_slow_pre_div",
+ "periph_sys", 0x114, 7),
+ DIV(PERIPH_CLK_COUNTER_SLOW_DIV, "counter_slow_div",
+ "counter_slow_pre_div", 0x118, 7),
+ DIV_F(PERIPH_CLK_IR_PRE_DIV, "ir_pre_div", "periph_sys", 0x11c, 7,
+ CLK_DIVIDER_ROUND_CLOSEST),
+ DIV_F(PERIPH_CLK_IR_DIV, "ir_div", "ir_pre_div", 0x120, 7,
+ CLK_DIVIDER_ROUND_CLOSEST),
+ DIV_F(PERIPH_CLK_WD_PRE_DIV, "wd_pre_div", "periph_sys", 0x124, 7,
+ CLK_DIVIDER_ROUND_CLOSEST),
+ DIV_F(PERIPH_CLK_WD_DIV, "wd_div", "wd_pre_div", 0x128, 7,
+ CLK_DIVIDER_ROUND_CLOSEST),
+ DIV(PERIPH_CLK_PDM_PRE_DIV, "pdm_pre_div", "periph_sys", 0x12c, 7),
+ DIV(PERIPH_CLK_PDM_DIV, "pdm_div", "pdm_pre_div", 0x130, 7),
+ DIV(PERIPH_CLK_PWM_PRE_DIV, "pwm_pre_div", "periph_sys", 0x134, 7),
+ DIV(PERIPH_CLK_PWM_DIV, "pwm_div", "pwm_pre_div", 0x138, 7),
+ DIV(PERIPH_CLK_I2C0_PRE_DIV, "i2c0_pre_div", "periph_sys", 0x13c, 7),
+ DIV(PERIPH_CLK_I2C0_DIV, "i2c0_div", "i2c0_pre_div", 0x140, 7),
+ DIV(PERIPH_CLK_I2C1_PRE_DIV, "i2c1_pre_div", "periph_sys", 0x144, 7),
+ DIV(PERIPH_CLK_I2C1_DIV, "i2c1_div", "i2c1_pre_div", 0x148, 7),
+ DIV(PERIPH_CLK_I2C2_PRE_DIV, "i2c2_pre_div", "periph_sys", 0x14c, 7),
+ DIV(PERIPH_CLK_I2C2_DIV, "i2c2_div", "i2c2_pre_div", 0x150, 7),
+ DIV(PERIPH_CLK_I2C3_PRE_DIV, "i2c3_pre_div", "periph_sys", 0x154, 7),
+ DIV(PERIPH_CLK_I2C3_DIV, "i2c3_div", "i2c3_pre_div", 0x158, 7),
+};
+
+static void __init pistachio_clk_periph_init(struct device_node *np)
+{
+ struct pistachio_clk_provider *p;
+
+ p = pistachio_clk_alloc_provider(np, PERIPH_CLK_NR_CLKS);
+ if (!p)
+ return;
+
+ pistachio_clk_register_div(p, pistachio_periph_divs,
+ ARRAY_SIZE(pistachio_periph_divs));
+ pistachio_clk_register_gate(p, pistachio_periph_gates,
+ ARRAY_SIZE(pistachio_periph_gates));
+
+ pistachio_clk_register_provider(p);
+}
+CLK_OF_DECLARE(pistachio_clk_periph, "img,pistachio-clk-periph",
+ pistachio_clk_periph_init);
+
+static struct pistachio_gate pistachio_sys_gates[] __initdata = {
+ GATE(SYS_CLK_I2C0, "i2c0_sys", "sys", 0x8, 0),
+ GATE(SYS_CLK_I2C1, "i2c1_sys", "sys", 0x8, 1),
+ GATE(SYS_CLK_I2C2, "i2c2_sys", "sys", 0x8, 2),
+ GATE(SYS_CLK_I2C3, "i2c3_sys", "sys", 0x8, 3),
+ GATE(SYS_CLK_I2S_IN, "i2s_in_sys", "sys", 0x8, 4),
+ GATE(SYS_CLK_PAUD_OUT, "paud_out_sys", "sys", 0x8, 5),
+ GATE(SYS_CLK_SPDIF_OUT, "spdif_out_sys", "sys", 0x8, 6),
+ GATE(SYS_CLK_SPI0_MASTER, "spi0_master_sys", "sys", 0x8, 7),
+ GATE(SYS_CLK_SPI0_SLAVE, "spi0_slave_sys", "sys", 0x8, 8),
+ GATE(SYS_CLK_PWM, "pwm_sys", "sys", 0x8, 9),
+ GATE(SYS_CLK_UART0, "uart0_sys", "sys", 0x8, 10),
+ GATE(SYS_CLK_UART1, "uart1_sys", "sys", 0x8, 11),
+ GATE(SYS_CLK_SPI1, "spi1_sys", "sys", 0x8, 12),
+ GATE(SYS_CLK_MDC, "mdc_sys", "sys", 0x8, 13),
+ GATE(SYS_CLK_SD_HOST, "sd_host_sys", "sys", 0x8, 14),
+ GATE(SYS_CLK_ENET, "enet_sys", "sys", 0x8, 15),
+ GATE(SYS_CLK_IR, "ir_sys", "sys", 0x8, 16),
+ GATE(SYS_CLK_WD, "wd_sys", "sys", 0x8, 17),
+ GATE(SYS_CLK_TIMER, "timer_sys", "sys", 0x8, 18),
+ GATE(SYS_CLK_I2S_OUT, "i2s_out_sys", "sys", 0x8, 24),
+ GATE(SYS_CLK_SPDIF_IN, "spdif_in_sys", "sys", 0x8, 25),
+ GATE(SYS_CLK_EVENT_TIMER, "event_timer_sys", "sys", 0x8, 26),
+ GATE(SYS_CLK_HASH, "hash_sys", "sys", 0x8, 27),
+};
+
+static void __init pistachio_cr_periph_init(struct device_node *np)
+{
+ struct pistachio_clk_provider *p;
+
+ p = pistachio_clk_alloc_provider(np, SYS_CLK_NR_CLKS);
+ if (!p)
+ return;
+
+ pistachio_clk_register_gate(p, pistachio_sys_gates,
+ ARRAY_SIZE(pistachio_sys_gates));
+
+ pistachio_clk_register_provider(p);
+}
+CLK_OF_DECLARE(pistachio_cr_periph, "img,pistachio-cr-periph",
+ pistachio_cr_periph_init);
+
+static struct pistachio_gate pistachio_ext_gates[] __initdata = {
+ GATE(EXT_CLK_ENET_IN, "enet_clk_in_gate", "enet_clk_in", 0x58, 5),
+ GATE(EXT_CLK_AUDIO_IN, "audio_clk_in_gate", "audio_clk_in", 0x58, 8)
+};
+
+static void __init pistachio_cr_top_init(struct device_node *np)
+{
+ struct pistachio_clk_provider *p;
+
+ p = pistachio_clk_alloc_provider(np, EXT_CLK_NR_CLKS);
+ if (!p)
+ return;
+
+ pistachio_clk_register_gate(p, pistachio_ext_gates,
+ ARRAY_SIZE(pistachio_ext_gates));
+
+ pistachio_clk_register_provider(p);
+}
+CLK_OF_DECLARE(pistachio_cr_top, "img,pistachio-cr-top",
+ pistachio_cr_top_init);
diff --git a/drivers/clk/pistachio/clk-pll.c b/drivers/clk/pistachio/clk-pll.c
new file mode 100644
index 000000000000..de537560bf70
--- /dev/null
+++ b/drivers/clk/pistachio/clk-pll.c
@@ -0,0 +1,401 @@
+/*
+ * Copyright (C) 2014 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+
+#include "clk.h"
+
+#define PLL_STATUS 0x0
+#define PLL_STATUS_LOCK BIT(0)
+
+#define PLL_CTRL1 0x4
+#define PLL_CTRL1_REFDIV_SHIFT 0
+#define PLL_CTRL1_REFDIV_MASK 0x3f
+#define PLL_CTRL1_FBDIV_SHIFT 6
+#define PLL_CTRL1_FBDIV_MASK 0xfff
+#define PLL_INT_CTRL1_POSTDIV1_SHIFT 18
+#define PLL_INT_CTRL1_POSTDIV1_MASK 0x7
+#define PLL_INT_CTRL1_POSTDIV2_SHIFT 21
+#define PLL_INT_CTRL1_POSTDIV2_MASK 0x7
+#define PLL_INT_CTRL1_PD BIT(24)
+#define PLL_INT_CTRL1_DSMPD BIT(25)
+#define PLL_INT_CTRL1_FOUTPOSTDIVPD BIT(26)
+#define PLL_INT_CTRL1_FOUTVCOPD BIT(27)
+
+#define PLL_CTRL2 0x8
+#define PLL_FRAC_CTRL2_FRAC_SHIFT 0
+#define PLL_FRAC_CTRL2_FRAC_MASK 0xffffff
+#define PLL_FRAC_CTRL2_POSTDIV1_SHIFT 24
+#define PLL_FRAC_CTRL2_POSTDIV1_MASK 0x7
+#define PLL_FRAC_CTRL2_POSTDIV2_SHIFT 27
+#define PLL_FRAC_CTRL2_POSTDIV2_MASK 0x7
+#define PLL_INT_CTRL2_BYPASS BIT(28)
+
+#define PLL_CTRL3 0xc
+#define PLL_FRAC_CTRL3_PD BIT(0)
+#define PLL_FRAC_CTRL3_DACPD BIT(1)
+#define PLL_FRAC_CTRL3_DSMPD BIT(2)
+#define PLL_FRAC_CTRL3_FOUTPOSTDIVPD BIT(3)
+#define PLL_FRAC_CTRL3_FOUT4PHASEPD BIT(4)
+#define PLL_FRAC_CTRL3_FOUTVCOPD BIT(5)
+
+#define PLL_CTRL4 0x10
+#define PLL_FRAC_CTRL4_BYPASS BIT(28)
+
+struct pistachio_clk_pll {
+ struct clk_hw hw;
+ void __iomem *base;
+ struct pistachio_pll_rate_table *rates;
+ unsigned int nr_rates;
+};
+
+static inline u32 pll_readl(struct pistachio_clk_pll *pll, u32 reg)
+{
+ return readl(pll->base + reg);
+}
+
+static inline void pll_writel(struct pistachio_clk_pll *pll, u32 val, u32 reg)
+{
+ writel(val, pll->base + reg);
+}
+
+static inline u32 do_div_round_closest(u64 dividend, u32 divisor)
+{
+ dividend += divisor / 2;
+ do_div(dividend, divisor);
+
+ return dividend;
+}
+
+static inline struct pistachio_clk_pll *to_pistachio_pll(struct clk_hw *hw)
+{
+ return container_of(hw, struct pistachio_clk_pll, hw);
+}
+
+static struct pistachio_pll_rate_table *
+pll_get_params(struct pistachio_clk_pll *pll, unsigned long fref,
+ unsigned long fout)
+{
+ unsigned int i;
+
+ for (i = 0; i < pll->nr_rates; i++) {
+ if (pll->rates[i].fref == fref && pll->rates[i].fout == fout)
+ return &pll->rates[i];
+ }
+
+ return NULL;
+}
+
+static long pll_round_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long *parent_rate)
+{
+ struct pistachio_clk_pll *pll = to_pistachio_pll(hw);
+ unsigned int i;
+
+ for (i = 0; i < pll->nr_rates; i++) {
+ if (i > 0 && pll->rates[i].fref == *parent_rate &&
+ pll->rates[i].fout <= rate)
+ return pll->rates[i - 1].fout;
+ }
+
+ return pll->rates[0].fout;
+}
+
+static int pll_gf40lp_frac_enable(struct clk_hw *hw)
+{
+ struct pistachio_clk_pll *pll = to_pistachio_pll(hw);
+ u32 val;
+
+ val = pll_readl(pll, PLL_CTRL3);
+ val &= ~(PLL_FRAC_CTRL3_PD | PLL_FRAC_CTRL3_DACPD |
+ PLL_FRAC_CTRL3_DSMPD | PLL_FRAC_CTRL3_FOUTPOSTDIVPD |
+ PLL_FRAC_CTRL3_FOUT4PHASEPD | PLL_FRAC_CTRL3_FOUTVCOPD);
+ pll_writel(pll, val, PLL_CTRL3);
+
+ val = pll_readl(pll, PLL_CTRL4);
+ val &= ~PLL_FRAC_CTRL4_BYPASS;
+ pll_writel(pll, val, PLL_CTRL4);
+
+ return 0;
+}
+
+static void pll_gf40lp_frac_disable(struct clk_hw *hw)
+{
+ struct pistachio_clk_pll *pll = to_pistachio_pll(hw);
+ u32 val;
+
+ val = pll_readl(pll, PLL_CTRL3);
+ val |= PLL_FRAC_CTRL3_PD;
+ pll_writel(pll, val, PLL_CTRL3);
+}
+
+static int pll_gf40lp_frac_is_enabled(struct clk_hw *hw)
+{
+ struct pistachio_clk_pll *pll = to_pistachio_pll(hw);
+
+ return !(pll_readl(pll, PLL_CTRL3) & PLL_FRAC_CTRL3_PD);
+}
+
+static int pll_gf40lp_frac_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ struct pistachio_clk_pll *pll = to_pistachio_pll(hw);
+ struct pistachio_pll_rate_table *params;
+ bool was_enabled;
+ u32 val;
+
+ params = pll_get_params(pll, parent_rate, rate);
+ if (!params)
+ return -EINVAL;
+
+ was_enabled = pll_gf40lp_frac_is_enabled(hw);
+ if (!was_enabled)
+ pll_gf40lp_frac_enable(hw);
+
+ val = pll_readl(pll, PLL_CTRL1);
+ val &= ~((PLL_CTRL1_REFDIV_MASK << PLL_CTRL1_REFDIV_SHIFT) |
+ (PLL_CTRL1_FBDIV_MASK << PLL_CTRL1_FBDIV_SHIFT));
+ val |= (params->refdiv << PLL_CTRL1_REFDIV_SHIFT) |
+ (params->fbdiv << PLL_CTRL1_FBDIV_SHIFT);
+ pll_writel(pll, val, PLL_CTRL1);
+
+ val = pll_readl(pll, PLL_CTRL2);
+ val &= ~((PLL_FRAC_CTRL2_FRAC_MASK << PLL_FRAC_CTRL2_FRAC_SHIFT) |
+ (PLL_FRAC_CTRL2_POSTDIV1_MASK <<
+ PLL_FRAC_CTRL2_POSTDIV1_SHIFT) |
+ (PLL_FRAC_CTRL2_POSTDIV2_MASK <<
+ PLL_FRAC_CTRL2_POSTDIV2_SHIFT));
+ val |= (params->frac << PLL_FRAC_CTRL2_FRAC_SHIFT) |
+ (params->postdiv1 << PLL_FRAC_CTRL2_POSTDIV1_SHIFT) |
+ (params->postdiv2 << PLL_FRAC_CTRL2_POSTDIV2_SHIFT);
+ pll_writel(pll, val, PLL_CTRL2);
+
+ while (!(pll_readl(pll, PLL_STATUS) & PLL_STATUS_LOCK))
+ cpu_relax();
+
+ if (!was_enabled)
+ pll_gf40lp_frac_disable(hw);
+
+ return 0;
+}
+
+static unsigned long pll_gf40lp_frac_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct pistachio_clk_pll *pll = to_pistachio_pll(hw);
+ u32 val, prediv, fbdiv, frac, postdiv1, postdiv2;
+ u64 rate = parent_rate;
+
+ val = pll_readl(pll, PLL_CTRL1);
+ prediv = (val >> PLL_CTRL1_REFDIV_SHIFT) & PLL_CTRL1_REFDIV_MASK;
+ fbdiv = (val >> PLL_CTRL1_FBDIV_SHIFT) & PLL_CTRL1_FBDIV_MASK;
+
+ val = pll_readl(pll, PLL_CTRL2);
+ postdiv1 = (val >> PLL_FRAC_CTRL2_POSTDIV1_SHIFT) &
+ PLL_FRAC_CTRL2_POSTDIV1_MASK;
+ postdiv2 = (val >> PLL_FRAC_CTRL2_POSTDIV2_SHIFT) &
+ PLL_FRAC_CTRL2_POSTDIV2_MASK;
+ frac = (val >> PLL_FRAC_CTRL2_FRAC_SHIFT) & PLL_FRAC_CTRL2_FRAC_MASK;
+
+ rate *= (fbdiv << 24) + frac;
+ rate = do_div_round_closest(rate, (prediv * postdiv1 * postdiv2) << 24);
+
+ return rate;
+}
+
+static struct clk_ops pll_gf40lp_frac_ops = {
+ .enable = pll_gf40lp_frac_enable,
+ .disable = pll_gf40lp_frac_disable,
+ .is_enabled = pll_gf40lp_frac_is_enabled,
+ .recalc_rate = pll_gf40lp_frac_recalc_rate,
+ .round_rate = pll_round_rate,
+ .set_rate = pll_gf40lp_frac_set_rate,
+};
+
+static struct clk_ops pll_gf40lp_frac_fixed_ops = {
+ .enable = pll_gf40lp_frac_enable,
+ .disable = pll_gf40lp_frac_disable,
+ .is_enabled = pll_gf40lp_frac_is_enabled,
+ .recalc_rate = pll_gf40lp_frac_recalc_rate,
+};
+
+static int pll_gf40lp_laint_enable(struct clk_hw *hw)
+{
+ struct pistachio_clk_pll *pll = to_pistachio_pll(hw);
+ u32 val;
+
+ val = pll_readl(pll, PLL_CTRL1);
+ val &= ~(PLL_INT_CTRL1_PD | PLL_INT_CTRL1_DSMPD |
+ PLL_INT_CTRL1_FOUTPOSTDIVPD | PLL_INT_CTRL1_FOUTVCOPD);
+ pll_writel(pll, val, PLL_CTRL1);
+
+ val = pll_readl(pll, PLL_CTRL2);
+ val &= ~PLL_INT_CTRL2_BYPASS;
+ pll_writel(pll, val, PLL_CTRL2);
+
+ return 0;
+}
+
+static void pll_gf40lp_laint_disable(struct clk_hw *hw)
+{
+ struct pistachio_clk_pll *pll = to_pistachio_pll(hw);
+ u32 val;
+
+ val = pll_readl(pll, PLL_CTRL1);
+ val |= PLL_INT_CTRL1_PD;
+ pll_writel(pll, val, PLL_CTRL1);
+}
+
+static int pll_gf40lp_laint_is_enabled(struct clk_hw *hw)
+{
+ struct pistachio_clk_pll *pll = to_pistachio_pll(hw);
+
+ return !(pll_readl(pll, PLL_CTRL1) & PLL_INT_CTRL1_PD);
+}
+
+static int pll_gf40lp_laint_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ struct pistachio_clk_pll *pll = to_pistachio_pll(hw);
+ struct pistachio_pll_rate_table *params;
+ bool was_enabled;
+ u32 val;
+
+ params = pll_get_params(pll, parent_rate, rate);
+ if (!params)
+ return -EINVAL;
+
+ was_enabled = pll_gf40lp_laint_is_enabled(hw);
+ if (!was_enabled)
+ pll_gf40lp_laint_enable(hw);
+
+ val = pll_readl(pll, PLL_CTRL1);
+ val &= ~((PLL_CTRL1_REFDIV_MASK << PLL_CTRL1_REFDIV_SHIFT) |
+ (PLL_CTRL1_FBDIV_MASK << PLL_CTRL1_FBDIV_SHIFT) |
+ (PLL_INT_CTRL1_POSTDIV1_MASK << PLL_INT_CTRL1_POSTDIV1_SHIFT) |
+ (PLL_INT_CTRL1_POSTDIV2_MASK << PLL_INT_CTRL1_POSTDIV2_SHIFT));
+ val |= (params->refdiv << PLL_CTRL1_REFDIV_SHIFT) |
+ (params->fbdiv << PLL_CTRL1_FBDIV_SHIFT) |
+ (params->postdiv1 << PLL_INT_CTRL1_POSTDIV1_SHIFT) |
+ (params->postdiv2 << PLL_INT_CTRL1_POSTDIV2_SHIFT);
+ pll_writel(pll, val, PLL_CTRL1);
+
+ while (!(pll_readl(pll, PLL_STATUS) & PLL_STATUS_LOCK))
+ cpu_relax();
+
+ if (!was_enabled)
+ pll_gf40lp_laint_disable(hw);
+
+ return 0;
+}
+
+static unsigned long pll_gf40lp_laint_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct pistachio_clk_pll *pll = to_pistachio_pll(hw);
+ u32 val, prediv, fbdiv, postdiv1, postdiv2;
+ u64 rate = parent_rate;
+
+ val = pll_readl(pll, PLL_CTRL1);
+ prediv = (val >> PLL_CTRL1_REFDIV_SHIFT) & PLL_CTRL1_REFDIV_MASK;
+ fbdiv = (val >> PLL_CTRL1_FBDIV_SHIFT) & PLL_CTRL1_FBDIV_MASK;
+ postdiv1 = (val >> PLL_INT_CTRL1_POSTDIV1_SHIFT) &
+ PLL_INT_CTRL1_POSTDIV1_MASK;
+ postdiv2 = (val >> PLL_INT_CTRL1_POSTDIV2_SHIFT) &
+ PLL_INT_CTRL1_POSTDIV2_MASK;
+
+ rate *= fbdiv;
+ rate = do_div_round_closest(rate, prediv * postdiv1 * postdiv2);
+
+ return rate;
+}
+
+static struct clk_ops pll_gf40lp_laint_ops = {
+ .enable = pll_gf40lp_laint_enable,
+ .disable = pll_gf40lp_laint_disable,
+ .is_enabled = pll_gf40lp_laint_is_enabled,
+ .recalc_rate = pll_gf40lp_laint_recalc_rate,
+ .round_rate = pll_round_rate,
+ .set_rate = pll_gf40lp_laint_set_rate,
+};
+
+static struct clk_ops pll_gf40lp_laint_fixed_ops = {
+ .enable = pll_gf40lp_laint_enable,
+ .disable = pll_gf40lp_laint_disable,
+ .is_enabled = pll_gf40lp_laint_is_enabled,
+ .recalc_rate = pll_gf40lp_laint_recalc_rate,
+};
+
+static struct clk *pll_register(const char *name, const char *parent_name,
+ unsigned long flags, void __iomem *base,
+ enum pistachio_pll_type type,
+ struct pistachio_pll_rate_table *rates,
+ unsigned int nr_rates)
+{
+ struct pistachio_clk_pll *pll;
+ struct clk_init_data init;
+ struct clk *clk;
+
+ pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+ if (!pll)
+ return ERR_PTR(-ENOMEM);
+
+ init.name = name;
+ init.flags = flags | CLK_GET_RATE_NOCACHE;
+ init.parent_names = &parent_name;
+ init.num_parents = 1;
+
+ switch (type) {
+ case PLL_GF40LP_FRAC:
+ if (rates)
+ init.ops = &pll_gf40lp_frac_ops;
+ else
+ init.ops = &pll_gf40lp_frac_fixed_ops;
+ break;
+ case PLL_GF40LP_LAINT:
+ if (rates)
+ init.ops = &pll_gf40lp_laint_ops;
+ else
+ init.ops = &pll_gf40lp_laint_fixed_ops;
+ break;
+ default:
+ pr_err("Unrecognized PLL type %u\n", type);
+ kfree(pll);
+ return ERR_PTR(-EINVAL);
+ }
+
+ pll->hw.init = &init;
+ pll->base = base;
+ pll->rates = rates;
+ pll->nr_rates = nr_rates;
+
+ clk = clk_register(NULL, &pll->hw);
+ if (IS_ERR(clk))
+ kfree(pll);
+
+ return clk;
+}
+
+void pistachio_clk_register_pll(struct pistachio_clk_provider *p,
+ struct pistachio_pll *pll,
+ unsigned int num)
+{
+ struct clk *clk;
+ unsigned int i;
+
+ for (i = 0; i < num; i++) {
+ clk = pll_register(pll[i].name, pll[i].parent,
+ 0, p->base + pll[i].reg_base,
+ pll[i].type, pll[i].rates,
+ pll[i].nr_rates);
+ p->clk_data.clks[pll[i].id] = clk;
+ }
+}
diff --git a/drivers/clk/pistachio/clk.c b/drivers/clk/pistachio/clk.c
new file mode 100644
index 000000000000..85faa83e1bd7
--- /dev/null
+++ b/drivers/clk/pistachio/clk.c
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2014 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/slab.h>
+
+#include "clk.h"
+
+struct pistachio_clk_provider *
+pistachio_clk_alloc_provider(struct device_node *node, unsigned int num_clks)
+{
+ struct pistachio_clk_provider *p;
+
+ p = kzalloc(sizeof(*p), GFP_KERNEL);
+ if (!p)
+ return p;
+
+ p->clk_data.clks = kcalloc(num_clks, sizeof(struct clk *), GFP_KERNEL);
+ if (!p->clk_data.clks)
+ goto free_provider;
+ p->clk_data.clk_num = num_clks;
+ p->node = node;
+ p->base = of_iomap(node, 0);
+ if (!p->base) {
+ pr_err("Failed to map clock provider registers\n");
+ goto free_clks;
+ }
+
+ return p;
+
+free_clks:
+ kfree(p->clk_data.clks);
+free_provider:
+ kfree(p);
+ return NULL;
+}
+
+void pistachio_clk_register_provider(struct pistachio_clk_provider *p)
+{
+ unsigned int i;
+
+ for (i = 0; i < p->clk_data.clk_num; i++) {
+ if (IS_ERR(p->clk_data.clks[i]))
+ pr_warn("Failed to register clock %d: %ld\n", i,
+ PTR_ERR(p->clk_data.clks[i]));
+ }
+
+ of_clk_add_provider(p->node, of_clk_src_onecell_get, &p->clk_data);
+}
+
+void pistachio_clk_register_gate(struct pistachio_clk_provider *p,
+ struct pistachio_gate *gate,
+ unsigned int num)
+{
+ struct clk *clk;
+ unsigned int i;
+
+ for (i = 0; i < num; i++) {
+ clk = clk_register_gate(NULL, gate[i].name, gate[i].parent,
+ CLK_SET_RATE_PARENT,
+ p->base + gate[i].reg, gate[i].shift,
+ 0, NULL);
+ p->clk_data.clks[gate[i].id] = clk;
+ }
+}
+
+void pistachio_clk_register_mux(struct pistachio_clk_provider *p,
+ struct pistachio_mux *mux,
+ unsigned int num)
+{
+ struct clk *clk;
+ unsigned int i;
+
+ for (i = 0; i < num; i++) {
+ clk = clk_register_mux(NULL, mux[i].name, mux[i].parents,
+ mux[i].num_parents,
+ CLK_SET_RATE_NO_REPARENT,
+ p->base + mux[i].reg, mux[i].shift,
+ get_count_order(mux[i].num_parents),
+ 0, NULL);
+ p->clk_data.clks[mux[i].id] = clk;
+ }
+}
+
+void pistachio_clk_register_div(struct pistachio_clk_provider *p,
+ struct pistachio_div *div,
+ unsigned int num)
+{
+ struct clk *clk;
+ unsigned int i;
+
+ for (i = 0; i < num; i++) {
+ clk = clk_register_divider(NULL, div[i].name, div[i].parent,
+ 0, p->base + div[i].reg, 0,
+ div[i].width, div[i].div_flags,
+ NULL);
+ p->clk_data.clks[div[i].id] = clk;
+ }
+}
+
+void pistachio_clk_register_fixed_factor(struct pistachio_clk_provider *p,
+ struct pistachio_fixed_factor *ff,
+ unsigned int num)
+{
+ struct clk *clk;
+ unsigned int i;
+
+ for (i = 0; i < num; i++) {
+ clk = clk_register_fixed_factor(NULL, ff[i].name, ff[i].parent,
+ 0, 1, ff[i].div);
+ p->clk_data.clks[ff[i].id] = clk;
+ }
+}
+
+void pistachio_clk_force_enable(struct pistachio_clk_provider *p,
+ unsigned int *clk_ids, unsigned int num)
+{
+ unsigned int i;
+ int err;
+
+ for (i = 0; i < num; i++) {
+ struct clk *clk = p->clk_data.clks[clk_ids[i]];
+
+ if (IS_ERR(clk))
+ continue;
+
+ err = clk_prepare_enable(clk);
+ if (err)
+ pr_err("Failed to enable clock %s: %d\n",
+ __clk_get_name(clk), err);
+ }
+}
diff --git a/drivers/clk/pistachio/clk.h b/drivers/clk/pistachio/clk.h
new file mode 100644
index 000000000000..52fabbc24624
--- /dev/null
+++ b/drivers/clk/pistachio/clk.h
@@ -0,0 +1,174 @@
+/*
+ * Copyright (C) 2014 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#ifndef __PISTACHIO_CLK_H
+#define __PISTACHIO_CLK_H
+
+#include <linux/clk-provider.h>
+
+struct pistachio_gate {
+ unsigned int id;
+ unsigned long reg;
+ unsigned int shift;
+ const char *name;
+ const char *parent;
+};
+
+#define GATE(_id, _name, _pname, _reg, _shift) \
+ { \
+ .id = _id, \
+ .reg = _reg, \
+ .shift = _shift, \
+ .name = _name, \
+ .parent = _pname, \
+ }
+
+struct pistachio_mux {
+ unsigned int id;
+ unsigned long reg;
+ unsigned int shift;
+ unsigned int num_parents;
+ const char *name;
+ const char **parents;
+};
+
+#define PNAME(x) static const char *x[] __initconst
+
+#define MUX(_id, _name, _pnames, _reg, _shift) \
+ { \
+ .id = _id, \
+ .reg = _reg, \
+ .shift = _shift, \
+ .name = _name, \
+ .parents = _pnames, \
+ .num_parents = ARRAY_SIZE(_pnames) \
+ }
+
+
+struct pistachio_div {
+ unsigned int id;
+ unsigned long reg;
+ unsigned int width;
+ unsigned int div_flags;
+ const char *name;
+ const char *parent;
+};
+
+#define DIV(_id, _name, _pname, _reg, _width) \
+ { \
+ .id = _id, \
+ .reg = _reg, \
+ .width = _width, \
+ .div_flags = 0, \
+ .name = _name, \
+ .parent = _pname, \
+ }
+
+#define DIV_F(_id, _name, _pname, _reg, _width, _div_flags) \
+ { \
+ .id = _id, \
+ .reg = _reg, \
+ .width = _width, \
+ .div_flags = _div_flags, \
+ .name = _name, \
+ .parent = _pname, \
+ }
+
+struct pistachio_fixed_factor {
+ unsigned int id;
+ unsigned int div;
+ const char *name;
+ const char *parent;
+};
+
+#define FIXED_FACTOR(_id, _name, _pname, _div) \
+ { \
+ .id = _id, \
+ .div = _div, \
+ .name = _name, \
+ .parent = _pname, \
+ }
+
+struct pistachio_pll_rate_table {
+ unsigned long fref;
+ unsigned long fout;
+ unsigned int refdiv;
+ unsigned int fbdiv;
+ unsigned int postdiv1;
+ unsigned int postdiv2;
+ unsigned int frac;
+};
+
+enum pistachio_pll_type {
+ PLL_GF40LP_LAINT,
+ PLL_GF40LP_FRAC,
+};
+
+struct pistachio_pll {
+ unsigned int id;
+ unsigned long reg_base;
+ enum pistachio_pll_type type;
+ struct pistachio_pll_rate_table *rates;
+ unsigned int nr_rates;
+ const char *name;
+ const char *parent;
+};
+
+#define PLL(_id, _name, _pname, _type, _reg, _rates) \
+ { \
+ .id = _id, \
+ .reg_base = _reg, \
+ .type = _type, \
+ .rates = _rates, \
+ .nr_rates = ARRAY_SIZE(_rates), \
+ .name = _name, \
+ .parent = _pname, \
+ }
+
+#define PLL_FIXED(_id, _name, _pname, _type, _reg) \
+ { \
+ .id = _id, \
+ .reg_base = _reg, \
+ .type = _type, \
+ .rates = NULL, \
+ .nr_rates = 0, \
+ .name = _name, \
+ .parent = _pname, \
+ }
+
+struct pistachio_clk_provider {
+ struct device_node *node;
+ void __iomem *base;
+ struct clk_onecell_data clk_data;
+};
+
+extern struct pistachio_clk_provider *
+pistachio_clk_alloc_provider(struct device_node *node, unsigned int num_clks);
+extern void pistachio_clk_register_provider(struct pistachio_clk_provider *p);
+
+extern void pistachio_clk_register_gate(struct pistachio_clk_provider *p,
+ struct pistachio_gate *gate,
+ unsigned int num);
+extern void pistachio_clk_register_mux(struct pistachio_clk_provider *p,
+ struct pistachio_mux *mux,
+ unsigned int num);
+extern void pistachio_clk_register_div(struct pistachio_clk_provider *p,
+ struct pistachio_div *div,
+ unsigned int num);
+extern void
+pistachio_clk_register_fixed_factor(struct pistachio_clk_provider *p,
+ struct pistachio_fixed_factor *ff,
+ unsigned int num);
+extern void pistachio_clk_register_pll(struct pistachio_clk_provider *p,
+ struct pistachio_pll *pll,
+ unsigned int num);
+
+extern void pistachio_clk_force_enable(struct pistachio_clk_provider *p,
+ unsigned int *clk_ids, unsigned int num);
+
+#endif
diff --git a/drivers/clk/qcom/gcc-msm8916.c b/drivers/clk/qcom/gcc-msm8916.c
index d3458474eb3a..c66f7bc2ae87 100644
--- a/drivers/clk/qcom/gcc-msm8916.c
+++ b/drivers/clk/qcom/gcc-msm8916.c
@@ -71,8 +71,8 @@ static const char *gcc_xo_gpll0_bimc[] = {
static const struct parent_map gcc_xo_gpll0a_gpll1_gpll2a_map[] = {
{ P_XO, 0 },
{ P_GPLL0_AUX, 3 },
- { P_GPLL2_AUX, 2 },
{ P_GPLL1, 1 },
+ { P_GPLL2_AUX, 2 },
};
static const char *gcc_xo_gpll0a_gpll1_gpll2a[] = {
@@ -1115,7 +1115,7 @@ static struct clk_rcg2 usb_hs_system_clk_src = {
static const struct freq_tbl ftbl_gcc_venus0_vcodec0_clk[] = {
F(100000000, P_GPLL0, 8, 0, 0),
F(160000000, P_GPLL0, 5, 0, 0),
- F(228570000, P_GPLL0, 5, 0, 0),
+ F(228570000, P_GPLL0, 3.5, 0, 0),
{ }
};
diff --git a/drivers/clk/samsung/Makefile b/drivers/clk/samsung/Makefile
index 17e9af7fe81f..a17683b2cf27 100644
--- a/drivers/clk/samsung/Makefile
+++ b/drivers/clk/samsung/Makefile
@@ -10,7 +10,7 @@ obj-$(CONFIG_SOC_EXYNOS5250) += clk-exynos5250.o
obj-$(CONFIG_SOC_EXYNOS5260) += clk-exynos5260.o
obj-$(CONFIG_SOC_EXYNOS5410) += clk-exynos5410.o
obj-$(CONFIG_SOC_EXYNOS5420) += clk-exynos5420.o
-obj-$(CONFIG_ARCH_EXYNOS5433) += clk-exynos5433.o
+obj-$(CONFIG_ARCH_EXYNOS) += clk-exynos5433.o
obj-$(CONFIG_SOC_EXYNOS5440) += clk-exynos5440.o
obj-$(CONFIG_ARCH_EXYNOS) += clk-exynos-audss.o
obj-$(CONFIG_ARCH_EXYNOS) += clk-exynos-clkout.o
diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c
index 07d666cc6a29..bea4a173eef5 100644
--- a/drivers/clk/samsung/clk-exynos5420.c
+++ b/drivers/clk/samsung/clk-exynos5420.c
@@ -271,6 +271,7 @@ static const struct samsung_clk_reg_dump exynos5420_set_clksrc[] = {
{ .offset = SRC_MASK_PERIC0, .value = 0x11111110, },
{ .offset = SRC_MASK_PERIC1, .value = 0x11111100, },
{ .offset = SRC_MASK_ISP, .value = 0x11111000, },
+ { .offset = GATE_BUS_TOP, .value = 0xffffffff, },
{ .offset = GATE_BUS_DISP1, .value = 0xffffffff, },
{ .offset = GATE_IP_PERIC, .value = 0xffffffff, },
};
diff --git a/drivers/clk/samsung/clk-exynos5433.c b/drivers/clk/samsung/clk-exynos5433.c
index 387e3e39e635..9e04ae2bb4d7 100644
--- a/drivers/clk/samsung/clk-exynos5433.c
+++ b/drivers/clk/samsung/clk-exynos5433.c
@@ -748,7 +748,7 @@ static struct samsung_pll_rate_table exynos5443_pll_rates[] = {
PLL_35XX_RATE(825000000U, 275, 4, 1),
PLL_35XX_RATE(800000000U, 400, 6, 1),
PLL_35XX_RATE(733000000U, 733, 12, 1),
- PLL_35XX_RATE(700000000U, 360, 6, 1),
+ PLL_35XX_RATE(700000000U, 175, 3, 1),
PLL_35XX_RATE(667000000U, 222, 4, 1),
PLL_35XX_RATE(633000000U, 211, 4, 1),
PLL_35XX_RATE(600000000U, 500, 5, 2),
@@ -760,14 +760,14 @@ static struct samsung_pll_rate_table exynos5443_pll_rates[] = {
PLL_35XX_RATE(444000000U, 370, 5, 2),
PLL_35XX_RATE(420000000U, 350, 5, 2),
PLL_35XX_RATE(400000000U, 400, 6, 2),
- PLL_35XX_RATE(350000000U, 360, 6, 2),
+ PLL_35XX_RATE(350000000U, 350, 6, 2),
PLL_35XX_RATE(333000000U, 222, 4, 2),
PLL_35XX_RATE(300000000U, 500, 5, 3),
PLL_35XX_RATE(266000000U, 532, 6, 3),
PLL_35XX_RATE(200000000U, 400, 6, 3),
PLL_35XX_RATE(166000000U, 332, 6, 3),
PLL_35XX_RATE(160000000U, 320, 6, 3),
- PLL_35XX_RATE(133000000U, 552, 6, 4),
+ PLL_35XX_RATE(133000000U, 532, 6, 4),
PLL_35XX_RATE(100000000U, 400, 6, 4),
{ /* sentinel */ }
};
@@ -1490,7 +1490,7 @@ static struct samsung_gate_clock mif_gate_clks[] __initdata = {
/* ENABLE_PCLK_MIF_SECURE_MONOTONIC_CNT */
GATE(CLK_PCLK_MONOTONIC_CNT, "pclk_monotonic_cnt", "div_aclk_mif_133",
- ENABLE_PCLK_MIF_SECURE_RTC, 0, 0, 0),
+ ENABLE_PCLK_MIF_SECURE_MONOTONIC_CNT, 0, 0, 0),
/* ENABLE_PCLK_MIF_SECURE_RTC */
GATE(CLK_PCLK_RTC, "pclk_rtc", "div_aclk_mif_133",
@@ -3665,7 +3665,7 @@ static struct samsung_gate_clock apollo_gate_clks[] __initdata = {
ENABLE_SCLK_APOLLO, 3, CLK_IGNORE_UNUSED, 0),
GATE(CLK_SCLK_HPM_APOLLO, "sclk_hpm_apollo", "div_sclk_hpm_apollo",
ENABLE_SCLK_APOLLO, 1, CLK_IGNORE_UNUSED, 0),
- GATE(CLK_SCLK_APOLLO, "sclk_apollo", "div_apollo_pll",
+ GATE(CLK_SCLK_APOLLO, "sclk_apollo", "div_apollo2",
ENABLE_SCLK_APOLLO, 0, CLK_IGNORE_UNUSED, 0),
};
@@ -3927,7 +3927,7 @@ CLK_OF_DECLARE(exynos5433_cmu_atlas, "samsung,exynos5433-cmu-atlas",
#define ENABLE_PCLK_MSCL 0x0900
#define ENABLE_PCLK_MSCL_SECURE_SMMU_M2MSCALER0 0x0904
#define ENABLE_PCLK_MSCL_SECURE_SMMU_M2MSCALER1 0x0908
-#define ENABLE_PCLK_MSCL_SECURE_SMMU_JPEG 0x000c
+#define ENABLE_PCLK_MSCL_SECURE_SMMU_JPEG 0x090c
#define ENABLE_SCLK_MSCL 0x0a00
#define ENABLE_IP_MSCL0 0x0b00
#define ENABLE_IP_MSCL1 0x0b04
diff --git a/drivers/clk/shmobile/Makefile b/drivers/clk/shmobile/Makefile
index 0689d7fb2666..97c71c885e4f 100644
--- a/drivers/clk/shmobile/Makefile
+++ b/drivers/clk/shmobile/Makefile
@@ -2,6 +2,7 @@ obj-$(CONFIG_ARCH_EMEV2) += clk-emev2.o
obj-$(CONFIG_ARCH_R7S72100) += clk-rz.o
obj-$(CONFIG_ARCH_R8A73A4) += clk-r8a73a4.o
obj-$(CONFIG_ARCH_R8A7740) += clk-r8a7740.o
+obj-$(CONFIG_ARCH_R8A7778) += clk-r8a7778.o
obj-$(CONFIG_ARCH_R8A7779) += clk-r8a7779.o
obj-$(CONFIG_ARCH_R8A7790) += clk-rcar-gen2.o
obj-$(CONFIG_ARCH_R8A7791) += clk-rcar-gen2.o
diff --git a/drivers/clk/shmobile/clk-r8a7778.c b/drivers/clk/shmobile/clk-r8a7778.c
new file mode 100644
index 000000000000..cb33b57274bf
--- /dev/null
+++ b/drivers/clk/shmobile/clk-r8a7778.c
@@ -0,0 +1,143 @@
+/*
+ * r8a7778 Core CPG Clocks
+ *
+ * Copyright (C) 2014 Ulrich Hecht
+ *
+ * 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.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/clk/shmobile.h>
+#include <linux/of_address.h>
+
+struct r8a7778_cpg {
+ struct clk_onecell_data data;
+ spinlock_t lock;
+ void __iomem *reg;
+};
+
+/* PLL multipliers per bits 11, 12, and 18 of MODEMR */
+struct {
+ unsigned long plla_mult;
+ unsigned long pllb_mult;
+} r8a7778_rates[] __initdata = {
+ [0] = { 21, 21 },
+ [1] = { 24, 24 },
+ [2] = { 28, 28 },
+ [3] = { 32, 32 },
+ [5] = { 24, 21 },
+ [6] = { 28, 21 },
+ [7] = { 32, 24 },
+};
+
+/* Clock dividers per bits 1 and 2 of MODEMR */
+struct {
+ const char *name;
+ unsigned int div[4];
+} r8a7778_divs[6] __initdata = {
+ { "b", { 12, 12, 16, 18 } },
+ { "out", { 12, 12, 16, 18 } },
+ { "p", { 16, 12, 16, 12 } },
+ { "s", { 4, 3, 4, 3 } },
+ { "s1", { 8, 6, 8, 6 } },
+};
+
+static u32 cpg_mode_rates __initdata;
+static u32 cpg_mode_divs __initdata;
+
+static struct clk * __init
+r8a7778_cpg_register_clock(struct device_node *np, struct r8a7778_cpg *cpg,
+ const char *name)
+{
+ if (!strcmp(name, "plla")) {
+ return clk_register_fixed_factor(NULL, "plla",
+ of_clk_get_parent_name(np, 0), 0,
+ r8a7778_rates[cpg_mode_rates].plla_mult, 1);
+ } else if (!strcmp(name, "pllb")) {
+ return clk_register_fixed_factor(NULL, "pllb",
+ of_clk_get_parent_name(np, 0), 0,
+ r8a7778_rates[cpg_mode_rates].pllb_mult, 1);
+ } else {
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(r8a7778_divs); i++) {
+ if (!strcmp(name, r8a7778_divs[i].name)) {
+ return clk_register_fixed_factor(NULL,
+ r8a7778_divs[i].name,
+ "plla", 0, 1,
+ r8a7778_divs[i].div[cpg_mode_divs]);
+ }
+ }
+ }
+
+ return ERR_PTR(-EINVAL);
+}
+
+
+static void __init r8a7778_cpg_clocks_init(struct device_node *np)
+{
+ struct r8a7778_cpg *cpg;
+ struct clk **clks;
+ unsigned int i;
+ int num_clks;
+
+ num_clks = of_property_count_strings(np, "clock-output-names");
+ if (num_clks < 0) {
+ pr_err("%s: failed to count clocks\n", __func__);
+ return;
+ }
+
+ cpg = kzalloc(sizeof(*cpg), GFP_KERNEL);
+ clks = kcalloc(num_clks, sizeof(*clks), GFP_KERNEL);
+ if (cpg == NULL || clks == NULL) {
+ /* We're leaking memory on purpose, there's no point in cleaning
+ * up as the system won't boot anyway.
+ */
+ return;
+ }
+
+ spin_lock_init(&cpg->lock);
+
+ cpg->data.clks = clks;
+ cpg->data.clk_num = num_clks;
+
+ cpg->reg = of_iomap(np, 0);
+ if (WARN_ON(cpg->reg == NULL))
+ return;
+
+ for (i = 0; i < num_clks; ++i) {
+ const char *name;
+ struct clk *clk;
+
+ of_property_read_string_index(np, "clock-output-names", i,
+ &name);
+
+ clk = r8a7778_cpg_register_clock(np, cpg, name);
+ if (IS_ERR(clk))
+ pr_err("%s: failed to register %s %s clock (%ld)\n",
+ __func__, np->name, name, PTR_ERR(clk));
+ else
+ cpg->data.clks[i] = clk;
+ }
+
+ of_clk_add_provider(np, of_clk_src_onecell_get, &cpg->data);
+}
+
+CLK_OF_DECLARE(r8a7778_cpg_clks, "renesas,r8a7778-cpg-clocks",
+ r8a7778_cpg_clocks_init);
+
+void __init r8a7778_clocks_init(u32 mode)
+{
+ BUG_ON(!(mode & BIT(19)));
+
+ cpg_mode_rates = (!!(mode & BIT(18)) << 2) |
+ (!!(mode & BIT(12)) << 1) |
+ (!!(mode & BIT(11)));
+ cpg_mode_divs = (!!(mode & BIT(2)) << 1) |
+ (!!(mode & BIT(1)));
+
+ of_clk_init(NULL);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-06 15:01:19 +0000