|
|
@@ -1,6 +1,6 @@
|
|
|
/*
|
|
|
* Copyright (C) 2010, Lars-Peter Clausen <[email protected]>
|
|
|
- * JZ4740 SoC TCU support
|
|
|
+ * JZ4740 SoC clock support
|
|
|
*
|
|
|
* 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
|
|
|
@@ -22,7 +22,11 @@
|
|
|
#include <linux/list.h>
|
|
|
#include <linux/err.h>
|
|
|
|
|
|
+#include <asm/mach-jz4740/clock.h>
|
|
|
+
|
|
|
#define JZ_REG_CLOCK_CTRL 0x00
|
|
|
+#define JZ_REG_CLOCK_LOW_POWER 0x04
|
|
|
+#define JZ_REG_CLOCK_SLEEP_CTRL 0x08
|
|
|
#define JZ_REG_CLOCK_PLL 0x10
|
|
|
#define JZ_REG_CLOCK_GATE 0x20
|
|
|
#define JZ_REG_CLOCK_I2S 0x60
|
|
|
@@ -84,16 +88,17 @@
|
|
|
#define JZ_CLOCK_PLL_N_OFFSET 18
|
|
|
#define JZ_CLOCK_PLL_OD_OFFSET 16
|
|
|
|
|
|
+#define JZ_CLOCK_LOW_POWER_MODE_DOZE BIT(2)
|
|
|
+#define JZ_CLOCK_LOW_POWER_MODE_SLEEP BIT(0)
|
|
|
+
|
|
|
+#define JZ_CLOCK_SLEEP_CTRL_SUSPEND_UHC BIT(7)
|
|
|
+#define JZ_CLOCK_SLEEP_CTRL_ENABLE_UDC BIT(6)
|
|
|
+
|
|
|
static void __iomem *jz_clock_base;
|
|
|
static spinlock_t jz_clock_lock;
|
|
|
static LIST_HEAD(jz_clocks);
|
|
|
|
|
|
-struct clk {
|
|
|
- const char *name;
|
|
|
- struct clk* parent;
|
|
|
-
|
|
|
- uint32_t gate_bit;
|
|
|
-
|
|
|
+struct clk_ops {
|
|
|
unsigned long (*get_rate)(struct clk* clk);
|
|
|
unsigned long (*round_rate)(struct clk *clk, unsigned long rate);
|
|
|
int (*set_rate)(struct clk* clk, unsigned long rate);
|
|
|
@@ -101,6 +106,16 @@ struct clk {
|
|
|
int (*disable)(struct clk* clk);
|
|
|
|
|
|
int (*set_parent)(struct clk* clk, struct clk *parent);
|
|
|
+};
|
|
|
+
|
|
|
+struct clk {
|
|
|
+ const char *name;
|
|
|
+ struct clk* parent;
|
|
|
+
|
|
|
+ uint32_t gate_bit;
|
|
|
+
|
|
|
+ const struct clk_ops *ops;
|
|
|
+
|
|
|
struct list_head list;
|
|
|
};
|
|
|
|
|
|
@@ -220,8 +235,6 @@ static unsigned long jz_clk_pll_half_get_rate(struct clk *clk)
|
|
|
return jz_clk_pll_get_rate(clk->parent) >> 1;
|
|
|
}
|
|
|
|
|
|
-
|
|
|
-
|
|
|
static const int jz_clk_main_divs[] = {1, 2, 3, 4, 6, 8, 12, 16, 24, 32};
|
|
|
|
|
|
static unsigned long jz_clk_main_round_rate(struct clk *clk, unsigned long rate)
|
|
|
@@ -276,33 +289,51 @@ static int jz_clk_main_set_rate(struct clk *clk, unsigned long rate)
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
+static struct clk_ops jz_clk_static_ops = {
|
|
|
+ .get_rate = jz_clk_static_get_rate,
|
|
|
+ .enable = jz_clk_enable_gating,
|
|
|
+ .disable = jz_clk_disable_gating,
|
|
|
+};
|
|
|
|
|
|
static struct static_clk jz_clk_ext = {
|
|
|
.clk = {
|
|
|
.name = "ext",
|
|
|
- .get_rate = jz_clk_static_get_rate,
|
|
|
+ .gate_bit = (uint32_t)-1,
|
|
|
+ .ops = &jz_clk_static_ops,
|
|
|
},
|
|
|
};
|
|
|
|
|
|
+static struct clk_ops jz_clk_pll_ops = {
|
|
|
+ .get_rate = jz_clk_static_get_rate,
|
|
|
+};
|
|
|
+
|
|
|
static struct clk jz_clk_pll = {
|
|
|
.name = "pll",
|
|
|
.parent = &jz_clk_ext.clk,
|
|
|
- .get_rate = jz_clk_pll_get_rate,
|
|
|
+ .ops = &jz_clk_pll_ops,
|
|
|
+};
|
|
|
+
|
|
|
+static struct clk_ops jz_clk_pll_half_ops = {
|
|
|
+ .get_rate = jz_clk_pll_half_get_rate,
|
|
|
};
|
|
|
|
|
|
static struct clk jz_clk_pll_half = {
|
|
|
.name = "pll half",
|
|
|
.parent = &jz_clk_pll,
|
|
|
- .get_rate = jz_clk_pll_half_get_rate,
|
|
|
+ .ops = &jz_clk_pll_half_ops,
|
|
|
+};
|
|
|
+
|
|
|
+static const struct clk_ops jz_clk_main_ops = {
|
|
|
+ .get_rate = jz_clk_main_get_rate,
|
|
|
+ .set_rate = jz_clk_main_set_rate,
|
|
|
+ .round_rate = jz_clk_main_round_rate,
|
|
|
};
|
|
|
|
|
|
static struct main_clk jz_clk_cpu = {
|
|
|
.clk = {
|
|
|
.name = "cclk",
|
|
|
.parent = &jz_clk_pll,
|
|
|
- .get_rate = jz_clk_main_get_rate,
|
|
|
- .set_rate = jz_clk_main_set_rate,
|
|
|
- .round_rate = jz_clk_main_round_rate,
|
|
|
+ .ops = &jz_clk_main_ops,
|
|
|
},
|
|
|
.div_offset = JZ_CLOCK_CTRL_CDIV_OFFSET,
|
|
|
};
|
|
|
@@ -311,9 +342,7 @@ static struct main_clk jz_clk_memory = {
|
|
|
.clk = {
|
|
|
.name = "mclk",
|
|
|
.parent = &jz_clk_pll,
|
|
|
- .get_rate = jz_clk_main_get_rate,
|
|
|
- .set_rate = jz_clk_main_set_rate,
|
|
|
- .round_rate = jz_clk_main_round_rate,
|
|
|
+ .ops = &jz_clk_main_ops,
|
|
|
},
|
|
|
.div_offset = JZ_CLOCK_CTRL_MDIV_OFFSET,
|
|
|
};
|
|
|
@@ -322,9 +351,7 @@ static struct main_clk jz_clk_high_speed_peripheral = {
|
|
|
.clk = {
|
|
|
.name = "hclk",
|
|
|
.parent = &jz_clk_pll,
|
|
|
- .get_rate = jz_clk_main_get_rate,
|
|
|
- .set_rate = jz_clk_main_set_rate,
|
|
|
- .round_rate = jz_clk_main_round_rate,
|
|
|
+ .ops = &jz_clk_main_ops,
|
|
|
},
|
|
|
.div_offset = JZ_CLOCK_CTRL_HDIV_OFFSET,
|
|
|
};
|
|
|
@@ -334,17 +361,20 @@ static struct main_clk jz_clk_low_speed_peripheral = {
|
|
|
.clk = {
|
|
|
.name = "pclk",
|
|
|
.parent = &jz_clk_pll,
|
|
|
- .get_rate = jz_clk_main_get_rate,
|
|
|
- .set_rate = jz_clk_main_set_rate,
|
|
|
+ .ops = &jz_clk_main_ops,
|
|
|
},
|
|
|
.div_offset = JZ_CLOCK_CTRL_PDIV_OFFSET,
|
|
|
};
|
|
|
|
|
|
+static const struct clk_ops jz_clk_ko_ops = {
|
|
|
+ .enable = jz_clk_ko_enable,
|
|
|
+ .disable = jz_clk_ko_disable,
|
|
|
+};
|
|
|
+
|
|
|
static struct clk jz_clk_ko = {
|
|
|
.name = "cko",
|
|
|
.parent = &jz_clk_memory.clk,
|
|
|
- .enable = jz_clk_ko_enable,
|
|
|
- .disable = jz_clk_ko_disable,
|
|
|
+ .ops = &jz_clk_ko_ops,
|
|
|
};
|
|
|
|
|
|
static int jz_clk_spi_set_parent(struct clk *clk, struct clk *parent)
|
|
|
@@ -375,6 +405,22 @@ static int jz_clk_i2s_set_parent(struct clk *clk, struct clk *parent)
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
+static int jz_clk_udc_disable(struct clk *clk)
|
|
|
+{
|
|
|
+ jz_clk_reg_clear_bits(JZ_REG_CLOCK_SLEEP_CTRL,
|
|
|
+ JZ_CLOCK_SLEEP_CTRL_ENABLE_UDC);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int jz_clk_udc_enable(struct clk *clk)
|
|
|
+{
|
|
|
+ jz_clk_reg_set_bits(JZ_REG_CLOCK_SLEEP_CTRL,
|
|
|
+ JZ_CLOCK_SLEEP_CTRL_ENABLE_UDC);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
static int jz_clk_udc_set_parent(struct clk *clk, struct clk *parent)
|
|
|
{
|
|
|
if (parent == &jz_clk_pll_half)
|
|
|
@@ -501,14 +547,18 @@ static unsigned long jz_clk_ldclk_get_rate(struct clk *clk)
|
|
|
return jz_clk_pll_half_get_rate(clk->parent) / (div + 1);
|
|
|
}
|
|
|
|
|
|
-static struct clk jz_clk_ld = {
|
|
|
- .name = "lcd",
|
|
|
- .parent = &jz_clk_pll_half,
|
|
|
+static const struct clk_ops jz_clk_ops_ld = {
|
|
|
.set_rate = jz_clk_ldclk_set_rate,
|
|
|
.get_rate = jz_clk_ldclk_get_rate,
|
|
|
.round_rate = jz_clk_ldclk_round_rate,
|
|
|
};
|
|
|
|
|
|
+static struct clk jz_clk_ld = {
|
|
|
+ .name = "lcd",
|
|
|
+ .parent = &jz_clk_pll_half,
|
|
|
+ .ops= &jz_clk_ops_ld,
|
|
|
+};
|
|
|
+
|
|
|
static struct divided_clk jz_clk_lp = {
|
|
|
.clk = {
|
|
|
.name = "lcd_pclk",
|
|
|
@@ -527,156 +577,165 @@ static struct static_clk jz_clk_cim_pclk = {
|
|
|
.clk = {
|
|
|
.name = "cim_pclk",
|
|
|
.gate_bit = JZ_CLOCK_GATE_CIM,
|
|
|
- .get_rate = jz_clk_static_get_rate,
|
|
|
- .enable = jz_clk_enable_gating,
|
|
|
- .disable = jz_clk_disable_gating,
|
|
|
- },
|
|
|
-};
|
|
|
-
|
|
|
-static struct divided_clk jz_clk_i2s = {
|
|
|
- .clk = {
|
|
|
- .name = "i2s",
|
|
|
- .parent = &jz_clk_ext.clk,
|
|
|
- .gate_bit = JZ_CLOCK_GATE_AIC,
|
|
|
- .set_rate = jz_clk_divided_set_rate,
|
|
|
- .get_rate = jz_clk_divided_get_rate,
|
|
|
- .enable = jz_clk_enable_gating,
|
|
|
- .disable = jz_clk_disable_gating,
|
|
|
- .set_parent = jz_clk_i2s_set_parent,
|
|
|
- },
|
|
|
- .reg = JZ_REG_CLOCK_I2S,
|
|
|
- .mask = JZ_CLOCK_I2S_DIV_MASK,
|
|
|
-};
|
|
|
-
|
|
|
-static struct divided_clk jz_clk_mmc = {
|
|
|
- .clk = {
|
|
|
- .name = "mmc",
|
|
|
- .parent = &jz_clk_pll_half,
|
|
|
- .gate_bit = JZ_CLOCK_GATE_MMC,
|
|
|
- .set_rate = jz_clk_divided_set_rate,
|
|
|
- .get_rate = jz_clk_divided_get_rate,
|
|
|
- .enable = jz_clk_enable_gating,
|
|
|
- .disable = jz_clk_disable_gating,
|
|
|
+ .ops = &jz_clk_static_ops,
|
|
|
},
|
|
|
- .reg = JZ_REG_CLOCK_MMC,
|
|
|
- .mask = JZ_CLOCK_MMC_DIV_MASK,
|
|
|
};
|
|
|
|
|
|
-static struct divided_clk jz_clk_uhc = {
|
|
|
- .clk = {
|
|
|
- .name = "uhc",
|
|
|
- .parent = &jz_clk_pll_half,
|
|
|
- .gate_bit = JZ_CLOCK_GATE_UHC,
|
|
|
- .set_rate = jz_clk_divided_set_rate,
|
|
|
- .get_rate = jz_clk_divided_get_rate,
|
|
|
- .enable = jz_clk_enable_gating,
|
|
|
- .disable = jz_clk_disable_gating,
|
|
|
- },
|
|
|
- .reg = JZ_REG_CLOCK_UHC,
|
|
|
- .mask = JZ_CLOCK_UHC_DIV_MASK,
|
|
|
-};
|
|
|
-
|
|
|
-static struct clk jz_clk_udc = {
|
|
|
- .name = "udc",
|
|
|
- .parent = &jz_clk_ext.clk,
|
|
|
- .set_parent = jz_clk_udc_set_parent,
|
|
|
- .set_rate = jz_clk_udc_set_rate,
|
|
|
- .get_rate = jz_clk_udc_get_rate,
|
|
|
-};
|
|
|
-
|
|
|
-static struct divided_clk jz_clk_spi = {
|
|
|
- .clk = {
|
|
|
- .name = "spi",
|
|
|
- .parent = &jz_clk_ext.clk,
|
|
|
- .gate_bit = JZ_CLOCK_GATE_SPI,
|
|
|
- .set_rate = jz_clk_divided_set_rate,
|
|
|
- .get_rate = jz_clk_divided_get_rate,
|
|
|
- .enable = jz_clk_enable_gating,
|
|
|
- .disable = jz_clk_disable_gating,
|
|
|
- .set_parent = jz_clk_spi_set_parent,
|
|
|
- },
|
|
|
- .reg = JZ_REG_CLOCK_SPI,
|
|
|
- .mask = JZ_CLOCK_SPI_DIV_MASK,
|
|
|
-};
|
|
|
-
|
|
|
-static struct clk jz_clk_uart0 = {
|
|
|
- .name = "uart0",
|
|
|
- .parent = &jz_clk_ext.clk,
|
|
|
- .gate_bit = JZ_CLOCK_GATE_UART0,
|
|
|
+static const struct clk_ops jz_clk_i2s_ops =
|
|
|
+{
|
|
|
+ .set_rate = jz_clk_divided_set_rate,
|
|
|
+ .get_rate = jz_clk_divided_get_rate,
|
|
|
.enable = jz_clk_enable_gating,
|
|
|
.disable = jz_clk_disable_gating,
|
|
|
+ .set_parent = jz_clk_i2s_set_parent,
|
|
|
};
|
|
|
|
|
|
-static struct clk jz_clk_uart1 = {
|
|
|
- .name = "uart1",
|
|
|
- .parent = &jz_clk_ext.clk,
|
|
|
- .gate_bit = JZ_CLOCK_GATE_UART1,
|
|
|
+static const struct clk_ops jz_clk_spi_ops =
|
|
|
+{
|
|
|
+ .set_rate = jz_clk_divided_set_rate,
|
|
|
+ .get_rate = jz_clk_divided_get_rate,
|
|
|
.enable = jz_clk_enable_gating,
|
|
|
.disable = jz_clk_disable_gating,
|
|
|
+ .set_parent = jz_clk_spi_set_parent,
|
|
|
};
|
|
|
|
|
|
-static struct clk jz_clk_dma = {
|
|
|
- .name = "dma",
|
|
|
- .parent = &jz_clk_high_speed_peripheral.clk,
|
|
|
- .gate_bit = JZ_CLOCK_GATE_UART0,
|
|
|
+static const struct clk_ops jz_clk_divided_ops =
|
|
|
+{
|
|
|
+ .set_rate = jz_clk_divided_set_rate,
|
|
|
+ .get_rate = jz_clk_divided_get_rate,
|
|
|
.enable = jz_clk_enable_gating,
|
|
|
.disable = jz_clk_disable_gating,
|
|
|
};
|
|
|
|
|
|
-static struct clk jz_clk_ipu = {
|
|
|
- .name = "ipu",
|
|
|
- .parent = &jz_clk_high_speed_peripheral.clk,
|
|
|
- .gate_bit = JZ_CLOCK_GATE_IPU,
|
|
|
- .enable = jz_clk_enable_gating,
|
|
|
- .disable = jz_clk_disable_gating,
|
|
|
+static struct divided_clk jz4740_clock_divided_clks[] = {
|
|
|
+ {
|
|
|
+ .clk = {
|
|
|
+ .name = "i2s",
|
|
|
+ .parent = &jz_clk_ext.clk,
|
|
|
+ .gate_bit = JZ_CLOCK_GATE_AIC,
|
|
|
+ .ops = &jz_clk_i2s_ops,
|
|
|
+ },
|
|
|
+ .reg = JZ_REG_CLOCK_I2S,
|
|
|
+ .mask = JZ_CLOCK_I2S_DIV_MASK,
|
|
|
+ },
|
|
|
+ {
|
|
|
+ .clk = {
|
|
|
+ .name = "spi",
|
|
|
+ .parent = &jz_clk_ext.clk,
|
|
|
+ .gate_bit = JZ_CLOCK_GATE_SPI,
|
|
|
+ .ops = &jz_clk_spi_ops,
|
|
|
+ },
|
|
|
+ .reg = JZ_REG_CLOCK_SPI,
|
|
|
+ .mask = JZ_CLOCK_SPI_DIV_MASK,
|
|
|
+ },
|
|
|
+ {
|
|
|
+ .clk = {
|
|
|
+ .name = "mmc",
|
|
|
+ .parent = &jz_clk_pll_half,
|
|
|
+ .gate_bit = JZ_CLOCK_GATE_MMC,
|
|
|
+ .ops = &jz_clk_divided_ops,
|
|
|
+ },
|
|
|
+ .reg = JZ_REG_CLOCK_MMC,
|
|
|
+ .mask = JZ_CLOCK_MMC_DIV_MASK,
|
|
|
+ },
|
|
|
+ {
|
|
|
+ .clk = {
|
|
|
+ .name = "uhc",
|
|
|
+ .parent = &jz_clk_pll_half,
|
|
|
+ .gate_bit = JZ_CLOCK_GATE_UHC,
|
|
|
+ .ops = &jz_clk_divided_ops,
|
|
|
+ },
|
|
|
+ .reg = JZ_REG_CLOCK_UHC,
|
|
|
+ .mask = JZ_CLOCK_UHC_DIV_MASK,
|
|
|
+ },
|
|
|
};
|
|
|
|
|
|
-static struct clk jz_clk_adc = {
|
|
|
- .name = "adc",
|
|
|
- .parent = &jz_clk_ext.clk,
|
|
|
- .gate_bit = JZ_CLOCK_GATE_ADC,
|
|
|
- .enable = jz_clk_enable_gating,
|
|
|
- .disable = jz_clk_disable_gating,
|
|
|
+static const struct clk_ops jz_clk_udc_ops = {
|
|
|
+ .set_parent = jz_clk_udc_set_parent,
|
|
|
+ .set_rate = jz_clk_udc_set_rate,
|
|
|
+ .get_rate = jz_clk_udc_get_rate,
|
|
|
+ .enable = jz_clk_udc_enable,
|
|
|
+ .disable = jz_clk_udc_disable,
|
|
|
};
|
|
|
|
|
|
-static struct clk jz_clk_i2c = {
|
|
|
- .name = "i2c",
|
|
|
- .parent = &jz_clk_ext.clk,
|
|
|
- .gate_bit = JZ_CLOCK_GATE_I2C,
|
|
|
+static const struct clk_ops jz_clk_simple_ops = {
|
|
|
.enable = jz_clk_enable_gating,
|
|
|
.disable = jz_clk_disable_gating,
|
|
|
};
|
|
|
|
|
|
+static struct clk jz4740_clock_simple_clks[] = {
|
|
|
+ {
|
|
|
+ .name = "udc",
|
|
|
+ .parent = &jz_clk_ext.clk,
|
|
|
+ .ops = &jz_clk_udc_ops,
|
|
|
+ },
|
|
|
+ {
|
|
|
+ .name = "uart0",
|
|
|
+ .parent = &jz_clk_ext.clk,
|
|
|
+ .gate_bit = JZ_CLOCK_GATE_UART0,
|
|
|
+ .ops = &jz_clk_simple_ops,
|
|
|
+ },
|
|
|
+ {
|
|
|
+ .name = "uart1",
|
|
|
+ .parent = &jz_clk_ext.clk,
|
|
|
+ .gate_bit = JZ_CLOCK_GATE_UART1,
|
|
|
+ .ops = &jz_clk_simple_ops,
|
|
|
+ },
|
|
|
+ {
|
|
|
+ .name = "dma",
|
|
|
+ .parent = &jz_clk_high_speed_peripheral.clk,
|
|
|
+ .gate_bit = JZ_CLOCK_GATE_UART0,
|
|
|
+ .ops = &jz_clk_simple_ops,
|
|
|
+ },
|
|
|
+ {
|
|
|
+ .name = "ipu",
|
|
|
+ .parent = &jz_clk_high_speed_peripheral.clk,
|
|
|
+ .gate_bit = JZ_CLOCK_GATE_IPU,
|
|
|
+ .ops = &jz_clk_simple_ops,
|
|
|
+ },
|
|
|
+ {
|
|
|
+ .name = "adc",
|
|
|
+ .parent = &jz_clk_ext.clk,
|
|
|
+ .gate_bit = JZ_CLOCK_GATE_ADC,
|
|
|
+ .ops = &jz_clk_simple_ops,
|
|
|
+ },
|
|
|
+ {
|
|
|
+ .name = "i2c",
|
|
|
+ .parent = &jz_clk_ext.clk,
|
|
|
+ .gate_bit = JZ_CLOCK_GATE_I2C,
|
|
|
+ .ops = &jz_clk_simple_ops,
|
|
|
+ },
|
|
|
+};
|
|
|
+
|
|
|
static struct static_clk jz_clk_rtc = {
|
|
|
.clk = {
|
|
|
.name = "rtc",
|
|
|
.gate_bit = JZ_CLOCK_GATE_RTC,
|
|
|
- .enable = jz_clk_enable_gating,
|
|
|
- .disable = jz_clk_disable_gating,
|
|
|
+ .ops = &jz_clk_static_ops,
|
|
|
},
|
|
|
.rate = 32768,
|
|
|
};
|
|
|
|
|
|
int clk_enable(struct clk *clk)
|
|
|
{
|
|
|
- if (!clk->enable)
|
|
|
+ if (!clk->ops->enable)
|
|
|
return -EINVAL;
|
|
|
|
|
|
- return clk->enable(clk);
|
|
|
+ return clk->ops->enable(clk);
|
|
|
}
|
|
|
EXPORT_SYMBOL_GPL(clk_enable);
|
|
|
|
|
|
void clk_disable(struct clk *clk)
|
|
|
{
|
|
|
- if (clk->disable)
|
|
|
- clk->disable(clk);
|
|
|
+ if (clk->ops->disable)
|
|
|
+ clk->ops->disable(clk);
|
|
|
}
|
|
|
EXPORT_SYMBOL_GPL(clk_disable);
|
|
|
|
|
|
unsigned long clk_get_rate(struct clk *clk)
|
|
|
{
|
|
|
- if (clk->get_rate)
|
|
|
- return clk->get_rate(clk);
|
|
|
+ if (clk->ops->get_rate)
|
|
|
+ return clk->ops->get_rate(clk);
|
|
|
if (clk->parent)
|
|
|
return clk_get_rate(clk->parent);
|
|
|
|
|
|
@@ -686,16 +745,16 @@ EXPORT_SYMBOL_GPL(clk_get_rate);
|
|
|
|
|
|
int clk_set_rate(struct clk *clk, unsigned long rate)
|
|
|
{
|
|
|
- if (!clk->set_rate)
|
|
|
+ if (!clk->ops->set_rate)
|
|
|
return -EINVAL;
|
|
|
- return clk->set_rate(clk, rate);
|
|
|
+ return clk->ops->set_rate(clk, rate);
|
|
|
}
|
|
|
EXPORT_SYMBOL_GPL(clk_set_rate);
|
|
|
|
|
|
long clk_round_rate(struct clk *clk, unsigned long rate)
|
|
|
{
|
|
|
- if (clk->round_rate)
|
|
|
- return clk->round_rate(clk, rate);
|
|
|
+ if (clk->ops->round_rate)
|
|
|
+ return clk->ops->round_rate(clk, rate);
|
|
|
|
|
|
return -EINVAL;
|
|
|
}
|
|
|
@@ -705,18 +764,17 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
|
|
|
{
|
|
|
int ret;
|
|
|
|
|
|
- if (!clk->set_parent)
|
|
|
+ if (!clk->ops->set_parent)
|
|
|
return -EINVAL;
|
|
|
|
|
|
- clk->disable(clk);
|
|
|
- ret = clk->set_parent(clk, parent);
|
|
|
- clk->enable(clk);
|
|
|
+ clk_disable(clk);
|
|
|
+ ret = clk->ops->set_parent(clk, parent);
|
|
|
+ clk_enable(clk);
|
|
|
|
|
|
return ret;
|
|
|
}
|
|
|
EXPORT_SYMBOL_GPL(clk_set_parent);
|
|
|
|
|
|
-
|
|
|
struct clk *clk_get(struct device *dev, const char *name)
|
|
|
{
|
|
|
struct clk *clk;
|
|
|
@@ -741,6 +799,8 @@ inline static void clk_add(struct clk *clk)
|
|
|
|
|
|
static void clk_register_clks(void)
|
|
|
{
|
|
|
+ size_t i;
|
|
|
+
|
|
|
clk_add(&jz_clk_ext.clk);
|
|
|
clk_add(&jz_clk_pll);
|
|
|
clk_add(&jz_clk_pll_half);
|
|
|
@@ -752,41 +812,63 @@ static void clk_register_clks(void)
|
|
|
clk_add(&jz_clk_lp.clk);
|
|
|
clk_add(&jz_clk_cim_mclk);
|
|
|
clk_add(&jz_clk_cim_pclk.clk);
|
|
|
- clk_add(&jz_clk_i2s.clk);
|
|
|
- clk_add(&jz_clk_mmc.clk);
|
|
|
- clk_add(&jz_clk_uhc.clk);
|
|
|
- clk_add(&jz_clk_udc);
|
|
|
- clk_add(&jz_clk_uart0);
|
|
|
- clk_add(&jz_clk_uart1);
|
|
|
- clk_add(&jz_clk_dma);
|
|
|
- clk_add(&jz_clk_ipu);
|
|
|
- clk_add(&jz_clk_adc);
|
|
|
- clk_add(&jz_clk_i2c);
|
|
|
clk_add(&jz_clk_rtc.clk);
|
|
|
+
|
|
|
+ for (i = 0; i < ARRAY_SIZE(jz4740_clock_divided_clks); ++i)
|
|
|
+ clk_add(&jz4740_clock_divided_clks[i].clk);
|
|
|
+
|
|
|
+ for (i = 0; i < ARRAY_SIZE(jz4740_clock_simple_clks); ++i)
|
|
|
+ clk_add(&jz4740_clock_simple_clks[i]);
|
|
|
+}
|
|
|
+
|
|
|
+void jz4740_clock_set_wait_mode(enum jz4740_wait_mode mode)
|
|
|
+{
|
|
|
+ switch (mode) {
|
|
|
+ case JZ4740_WAIT_MODE_IDLE:
|
|
|
+ jz_clk_reg_clear_bits(JZ_REG_CLOCK_LOW_POWER, JZ_CLOCK_LOW_POWER_MODE_SLEEP);
|
|
|
+ break;
|
|
|
+ case JZ4740_WAIT_MODE_SLEEP:
|
|
|
+ jz_clk_reg_set_bits(JZ_REG_CLOCK_LOW_POWER, JZ_CLOCK_LOW_POWER_MODE_SLEEP);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+void jz4740_clock_udc_disable_auto_suspend(void)
|
|
|
+{
|
|
|
+ jz_clk_reg_clear_bits(JZ_REG_CLOCK_GATE, JZ_CLOCK_GATE_UDC);
|
|
|
}
|
|
|
+EXPORT_SYMBOL_GPL(jz4740_clock_udc_disable_auto_suspend);
|
|
|
+
|
|
|
+void jz4740_clock_udc_enable_auto_suspend(void)
|
|
|
+{
|
|
|
+ jz_clk_reg_set_bits(JZ_REG_CLOCK_GATE, JZ_CLOCK_GATE_UDC);
|
|
|
+}
|
|
|
+EXPORT_SYMBOL_GPL(jz4740_clock_udc_enable_auto_suspend);
|
|
|
|
|
|
int jz_init_clocks(unsigned long ext_rate)
|
|
|
{
|
|
|
uint32_t val;
|
|
|
|
|
|
- jz_clock_base = ioremap(0x10000000, 0x100);
|
|
|
+ jz_clock_base = ioremap(CPHYSADDR(CPM_BASE), 0x100);
|
|
|
if (!jz_clock_base)
|
|
|
return -EBUSY;
|
|
|
|
|
|
+ spin_lock_init(&jz_clock_lock);
|
|
|
+
|
|
|
jz_clk_ext.rate = ext_rate;
|
|
|
|
|
|
val = jz_clk_reg_read(JZ_REG_CLOCK_SPI);
|
|
|
|
|
|
if (val & JZ_CLOCK_SPI_SRC_PLL)
|
|
|
- jz_clk_spi.clk.parent = &jz_clk_pll_half;
|
|
|
+ jz4740_clock_divided_clks[1].clk.parent = &jz_clk_pll_half;
|
|
|
|
|
|
val = jz_clk_reg_read(JZ_REG_CLOCK_CTRL);
|
|
|
|
|
|
if (val & JZ_CLOCK_CTRL_I2S_SRC_PLL)
|
|
|
- jz_clk_i2s.clk.parent = &jz_clk_pll_half;
|
|
|
+ jz4740_clock_divided_clks[0].clk.parent = &jz_clk_pll_half;
|
|
|
|
|
|
if (val & JZ_CLOCK_CTRL_UDC_SRC_PLL)
|
|
|
- jz_clk_udc.parent = &jz_clk_pll_half;
|
|
|
+ jz4740_clock_simple_clks[0].parent = &jz_clk_pll_half;
|
|
|
|
|
|
clk_register_clks();
|
|
|
|