diff options
Diffstat (limited to 'drivers/clk/st')
| -rw-r--r-- | drivers/clk/st/Makefile | 2 | ||||
| -rw-r--r-- | drivers/clk/st/clk-flexgen.c | 331 | ||||
| -rw-r--r-- | drivers/clk/st/clkgen-fsyn.c | 223 | ||||
| -rw-r--r-- | drivers/clk/st/clkgen-mux.c | 12 | ||||
| -rw-r--r-- | drivers/clk/st/clkgen-pll.c | 94 |
5 files changed, 610 insertions, 52 deletions
diff --git a/drivers/clk/st/Makefile b/drivers/clk/st/Makefile index c7455ffdbdf..ede7b2f1309 100644 --- a/drivers/clk/st/Makefile +++ b/drivers/clk/st/Makefile @@ -1 +1 @@ -obj-y += clkgen-mux.o clkgen-pll.o clkgen-fsyn.o +obj-y += clkgen-mux.o clkgen-pll.o clkgen-fsyn.o clk-flexgen.o diff --git a/drivers/clk/st/clk-flexgen.c b/drivers/clk/st/clk-flexgen.c new file mode 100644 index 00000000000..2282cef9f2f --- /dev/null +++ b/drivers/clk/st/clk-flexgen.c @@ -0,0 +1,331 @@ +/* + * clk-flexgen.c + * + * Copyright (C) ST-Microelectronics SA 2013 + * Author: Maxime Coquelin <maxime.coquelin@st.com> for ST-Microelectronics. + * License terms: GNU General Public License (GPL), version 2 */ + +#include <linux/clk-provider.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/io.h> +#include <linux/err.h> +#include <linux/string.h> +#include <linux/of.h> +#include <linux/of_address.h> + +struct flexgen { + struct clk_hw hw; + + /* Crossbar */ + struct clk_mux mux; + /* Pre-divisor's gate */ + struct clk_gate pgate; + /* Pre-divisor */ + struct clk_divider pdiv; + /* Final divisor's gate */ + struct clk_gate fgate; + /* Final divisor */ + struct clk_divider fdiv; +}; + +#define to_flexgen(_hw) container_of(_hw, struct flexgen, hw) + +static int flexgen_enable(struct clk_hw *hw) +{ + struct flexgen *flexgen = to_flexgen(hw); + struct clk_hw *pgate_hw = &flexgen->pgate.hw; + struct clk_hw *fgate_hw = &flexgen->fgate.hw; + + pgate_hw->clk = hw->clk; + fgate_hw->clk = hw->clk; + + clk_gate_ops.enable(pgate_hw); + + clk_gate_ops.enable(fgate_hw); + + pr_debug("%s: flexgen output enabled\n", __clk_get_name(hw->clk)); + return 0; +} + +static void flexgen_disable(struct clk_hw *hw) +{ + struct flexgen *flexgen = to_flexgen(hw); + struct clk_hw *fgate_hw = &flexgen->fgate.hw; + + /* disable only the final gate */ + fgate_hw->clk = hw->clk; + + clk_gate_ops.disable(fgate_hw); + + pr_debug("%s: flexgen output disabled\n", __clk_get_name(hw->clk)); +} + +static int flexgen_is_enabled(struct clk_hw *hw) +{ + struct flexgen *flexgen = to_flexgen(hw); + struct clk_hw *fgate_hw = &flexgen->fgate.hw; + + fgate_hw->clk = hw->clk; + + if (!clk_gate_ops.is_enabled(fgate_hw)) + return 0; + + return 1; +} + +static u8 flexgen_get_parent(struct clk_hw *hw) +{ + struct flexgen *flexgen = to_flexgen(hw); + struct clk_hw *mux_hw = &flexgen->mux.hw; + + mux_hw->clk = hw->clk; + + return clk_mux_ops.get_parent(mux_hw); +} + +static int flexgen_set_parent(struct clk_hw *hw, u8 index) +{ + struct flexgen *flexgen = to_flexgen(hw); + struct clk_hw *mux_hw = &flexgen->mux.hw; + + mux_hw->clk = hw->clk; + + return clk_mux_ops.set_parent(mux_hw, index); +} + +static inline unsigned long +clk_best_div(unsigned long parent_rate, unsigned long rate) +{ + return parent_rate / rate + ((rate > (2*(parent_rate % rate))) ? 0 : 1); +} + +static long flexgen_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + unsigned long div; + + /* Round div according to exact prate and wished rate */ + div = clk_best_div(*prate, rate); + + if (__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT) { + *prate = rate * div; + return rate; + } + + return *prate / div; +} + +unsigned long flexgen_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct flexgen *flexgen = to_flexgen(hw); + struct clk_hw *pdiv_hw = &flexgen->pdiv.hw; + struct clk_hw *fdiv_hw = &flexgen->fdiv.hw; + unsigned long mid_rate; + + pdiv_hw->clk = hw->clk; + fdiv_hw->clk = hw->clk; + + mid_rate = clk_divider_ops.recalc_rate(pdiv_hw, parent_rate); + + return clk_divider_ops.recalc_rate(fdiv_hw, mid_rate); +} + +static int flexgen_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct flexgen *flexgen = to_flexgen(hw); + struct clk_hw *pdiv_hw = &flexgen->pdiv.hw; + struct clk_hw *fdiv_hw = &flexgen->fdiv.hw; + unsigned long primary_div = 0; + int ret = 0; + + pdiv_hw->clk = hw->clk; + fdiv_hw->clk = hw->clk; + + primary_div = clk_best_div(parent_rate, rate); + + clk_divider_ops.set_rate(fdiv_hw, parent_rate, parent_rate); + ret = clk_divider_ops.set_rate(pdiv_hw, rate, rate * primary_div); + + return ret; +} + +static const struct clk_ops flexgen_ops = { + .enable = flexgen_enable, + .disable = flexgen_disable, + .is_enabled = flexgen_is_enabled, + .get_parent = flexgen_get_parent, + .set_parent = flexgen_set_parent, + .round_rate = flexgen_round_rate, + .recalc_rate = flexgen_recalc_rate, + .set_rate = flexgen_set_rate, +}; + +struct clk *clk_register_flexgen(const char *name, + const char **parent_names, u8 num_parents, + void __iomem *reg, spinlock_t *lock, u32 idx, + unsigned long flexgen_flags) { + struct flexgen *fgxbar; + struct clk *clk; + struct clk_init_data init; + u32 xbar_shift; + void __iomem *xbar_reg, *fdiv_reg; + + fgxbar = kzalloc(sizeof(struct flexgen), GFP_KERNEL); + if (!fgxbar) + return ERR_PTR(-ENOMEM); + + init.name = name; + init.ops = &flexgen_ops; + init.flags = CLK_IS_BASIC | flexgen_flags; + init.parent_names = parent_names; + init.num_parents = num_parents; + + xbar_reg = reg + 0x18 + (idx & ~0x3); + xbar_shift = (idx % 4) * 0x8; + fdiv_reg = reg + 0x164 + idx * 4; + + /* Crossbar element config */ + fgxbar->mux.lock = lock; + fgxbar->mux.mask = BIT(6) - 1; + fgxbar->mux.reg = xbar_reg; + fgxbar->mux.shift = xbar_shift; + fgxbar->mux.table = NULL; + + + /* Pre-divider's gate config (in xbar register)*/ + fgxbar->pgate.lock = lock; + fgxbar->pgate.reg = xbar_reg; + fgxbar->pgate.bit_idx = xbar_shift + 6; + + /* Pre-divider config */ + fgxbar->pdiv.lock = lock; + fgxbar->pdiv.reg = reg + 0x58 + idx * 4; + fgxbar->pdiv.width = 10; + + /* Final divider's gate config */ + fgxbar->fgate.lock = lock; + fgxbar->fgate.reg = fdiv_reg; + fgxbar->fgate.bit_idx = 6; + + /* Final divider config */ + fgxbar->fdiv.lock = lock; + fgxbar->fdiv.reg = fdiv_reg; + fgxbar->fdiv.width = 6; + + fgxbar->hw.init = &init; + + clk = clk_register(NULL, &fgxbar->hw); + if (IS_ERR(clk)) + kfree(fgxbar); + else + pr_debug("%s: parent %s rate %u\n", + __clk_get_name(clk), + __clk_get_name(clk_get_parent(clk)), + (unsigned int)clk_get_rate(clk)); + return clk; +} + +static const char ** __init flexgen_get_parents(struct device_node *np, + int *num_parents) +{ + const char **parents; + int nparents, i; + + nparents = of_count_phandle_with_args(np, "clocks", "#clock-cells"); + if (WARN_ON(nparents <= 0)) + return NULL; + + parents = kcalloc(nparents, sizeof(const char *), GFP_KERNEL); + if (!parents) + return NULL; + + for (i = 0; i < nparents; i++) + parents[i] = of_clk_get_parent_name(np, i); + + *num_parents = nparents; + return parents; +} + +void __init st_of_flexgen_setup(struct device_node *np) +{ + struct device_node *pnode; + void __iomem *reg; + struct clk_onecell_data *clk_data; + const char **parents; + int num_parents, i; + spinlock_t *rlock = NULL; + unsigned long flex_flags = 0; + + pnode = of_get_parent(np); + if (!pnode) + return; + + reg = of_iomap(pnode, 0); + if (!reg) + return; + + parents = flexgen_get_parents(np, &num_parents); + if (!parents) + return; + + clk_data = kzalloc(sizeof(*clk_data), GFP_KERNEL); + if (!clk_data) + goto err; + + clk_data->clk_num = of_property_count_strings(np , + "clock-output-names"); + if (clk_data->clk_num <= 0) { + pr_err("%s: Failed to get number of output clocks (%d)", + __func__, clk_data->clk_num); + goto err; + } + + clk_data->clks = kcalloc(clk_data->clk_num, sizeof(struct clk *), + GFP_KERNEL); + if (!clk_data->clks) + goto err; + + rlock = kzalloc(sizeof(spinlock_t), GFP_KERNEL); + if (!rlock) + goto err; + + for (i = 0; i < clk_data->clk_num; i++) { + struct clk *clk; + const char *clk_name; + + if (of_property_read_string_index(np, "clock-output-names", + i, &clk_name)) { + break; + } + + /* + * If we read an empty clock name then the output is unused + */ + if (*clk_name == '\0') + continue; + + clk = clk_register_flexgen(clk_name, parents, num_parents, + reg, rlock, i, flex_flags); + + if (IS_ERR(clk)) + goto err; + + clk_data->clks[i] = clk; + } + + kfree(parents); + of_clk_add_provider(np, of_clk_src_onecell_get, clk_data); + + return; + +err: + if (clk_data) + kfree(clk_data->clks); + kfree(clk_data); + kfree(parents); + kfree(rlock); +} +CLK_OF_DECLARE(flexgen, "st,flexgen", st_of_flexgen_setup); diff --git a/drivers/clk/st/clkgen-fsyn.c b/drivers/clk/st/clkgen-fsyn.c index 4f53ee0778d..af94ed82cfc 100644 --- a/drivers/clk/st/clkgen-fsyn.c +++ b/drivers/clk/st/clkgen-fsyn.c @@ -41,7 +41,7 @@ struct stm_fs { unsigned long nsdiv; }; -static struct stm_fs fs216c65_rtbl[] = { +static const struct stm_fs fs216c65_rtbl[] = { { .mdiv = 0x1f, .pe = 0x0, .sdiv = 0x7, .nsdiv = 0 }, /* 312.5 Khz */ { .mdiv = 0x17, .pe = 0x25ed, .sdiv = 0x1, .nsdiv = 0 }, /* 27 MHz */ { .mdiv = 0x1a, .pe = 0x7b36, .sdiv = 0x2, .nsdiv = 1 }, /* 36.87 MHz */ @@ -49,31 +49,86 @@ static struct stm_fs fs216c65_rtbl[] = { { .mdiv = 0x11, .pe = 0x1c72, .sdiv = 0x1, .nsdiv = 1 }, /* 108 MHz */ }; -static struct stm_fs fs432c65_rtbl[] = { - { .mdiv = 0x1f, .pe = 0x0, .sdiv = 0x7, .nsdiv = 0 }, /* 625 Khz */ - { .mdiv = 0x11, .pe = 0x1c72, .sdiv = 0x2, .nsdiv = 1 }, /* 108 MHz */ - { .mdiv = 0x19, .pe = 0x121a, .sdiv = 0x0, .nsdiv = 1 }, /* 297 MHz */ +static const struct stm_fs fs432c65_rtbl[] = { + { .mdiv = 0x1f, .pe = 0x0, .sdiv = 0x7, .nsdiv = 0 }, /* 625 Khz */ + { .mdiv = 0x13, .pe = 0x777c, .sdiv = 0x4, .nsdiv = 1 }, /* 25.175 MHz */ + { .mdiv = 0x19, .pe = 0x4d35, .sdiv = 0x2, .nsdiv = 0 }, /* 25.200 MHz */ + { .mdiv = 0x11, .pe = 0x1c72, .sdiv = 0x4, .nsdiv = 1 }, /* 27.000 MHz */ + { .mdiv = 0x17, .pe = 0x28f5, .sdiv = 0x2, .nsdiv = 0 }, /* 27.027 MHz */ + { .mdiv = 0x16, .pe = 0x3359, .sdiv = 0x2, .nsdiv = 0 }, /* 28.320 MHz */ + { .mdiv = 0x1f, .pe = 0x2083, .sdiv = 0x3, .nsdiv = 1 }, /* 30.240 MHz */ + { .mdiv = 0x1e, .pe = 0x430d, .sdiv = 0x3, .nsdiv = 1 }, /* 31.500 MHz */ + { .mdiv = 0x17, .pe = 0x0, .sdiv = 0x3, .nsdiv = 1 }, /* 40.000 MHz */ + { .mdiv = 0x19, .pe = 0x121a, .sdiv = 0x1, .nsdiv = 0 }, /* 49.500 MHz */ + { .mdiv = 0x13, .pe = 0x6667, .sdiv = 0x3, .nsdiv = 1 }, /* 50.000 MHz */ + { .mdiv = 0x10, .pe = 0x1ee6, .sdiv = 0x3, .nsdiv = 1 }, /* 57.284 MHz */ + { .mdiv = 0x1d, .pe = 0x3b14, .sdiv = 0x2, .nsdiv = 1 }, /* 65.000 MHz */ + { .mdiv = 0x12, .pe = 0x7c65, .sdiv = 0x1, .nsdiv = 0 }, /* 71.000 MHz */ + { .mdiv = 0x19, .pe = 0xecd, .sdiv = 0x2, .nsdiv = 1 }, /* 74.176 MHz */ + { .mdiv = 0x19, .pe = 0x121a, .sdiv = 0x2, .nsdiv = 1 }, /* 74.250 MHz */ + { .mdiv = 0x19, .pe = 0x3334, .sdiv = 0x2, .nsdiv = 1 }, /* 75.000 MHz */ + { .mdiv = 0x18, .pe = 0x5138, .sdiv = 0x2, .nsdiv = 1 }, /* 78.800 MHz */ + { .mdiv = 0x1d, .pe = 0x77d, .sdiv = 0x0, .nsdiv = 0 }, /* 85.500 MHz */ + { .mdiv = 0x1c, .pe = 0x13d5, .sdiv = 0x0, .nsdiv = 0 }, /* 88.750 MHz */ + { .mdiv = 0x11, .pe = 0x1c72, .sdiv = 0x2, .nsdiv = 1 }, /* 108.000 MHz */ + { .mdiv = 0x17, .pe = 0x28f5, .sdiv = 0x0, .nsdiv = 0 }, /* 108.108 MHz */ + { .mdiv = 0x10, .pe = 0x6e26, .sdiv = 0x2, .nsdiv = 1 }, /* 118.963 MHz */ + { .mdiv = 0x15, .pe = 0x3e63, .sdiv = 0x0, .nsdiv = 0 }, /* 119.000 MHz */ + { .mdiv = 0x1c, .pe = 0x471d, .sdiv = 0x1, .nsdiv = 1 }, /* 135.000 MHz */ + { .mdiv = 0x19, .pe = 0xecd, .sdiv = 0x1, .nsdiv = 1 }, /* 148.352 MHz */ + { .mdiv = 0x19, .pe = 0x121a, .sdiv = 0x1, .nsdiv = 1 }, /* 148.500 MHz */ + { .mdiv = 0x19, .pe = 0x121a, .sdiv = 0x0, .nsdiv = 1 }, /* 297 MHz */ }; -static struct stm_fs fs660c32_rtbl[] = { - { .mdiv = 0x01, .pe = 0x2aaa, .sdiv = 0x8, .nsdiv = 0 }, /* 600 KHz */ - { .mdiv = 0x02, .pe = 0x3d33, .sdiv = 0x0, .nsdiv = 0 }, /* 148.5 Mhz */ - { .mdiv = 0x13, .pe = 0x5bcc, .sdiv = 0x0, .nsdiv = 1 }, /* 297 Mhz */ - { .mdiv = 0x0e, .pe = 0x1025, .sdiv = 0x0, .nsdiv = 1 }, /* 333 Mhz */ - { .mdiv = 0x0b, .pe = 0x715f, .sdiv = 0x0, .nsdiv = 1 }, /* 350 Mhz */ +static const struct stm_fs fs660c32_rtbl[] = { + { .mdiv = 0x14, .pe = 0x376b, .sdiv = 0x4, .nsdiv = 1 }, /* 25.175 MHz */ + { .mdiv = 0x14, .pe = 0x30c3, .sdiv = 0x4, .nsdiv = 1 }, /* 25.200 MHz */ + { .mdiv = 0x10, .pe = 0x71c7, .sdiv = 0x4, .nsdiv = 1 }, /* 27.000 MHz */ + { .mdiv = 0x00, .pe = 0x47af, .sdiv = 0x3, .nsdiv = 0 }, /* 27.027 MHz */ + { .mdiv = 0x0e, .pe = 0x4e1a, .sdiv = 0x4, .nsdiv = 1 }, /* 28.320 MHz */ + { .mdiv = 0x0b, .pe = 0x534d, .sdiv = 0x4, .nsdiv = 1 }, /* 30.240 MHz */ + { .mdiv = 0x17, .pe = 0x6fbf, .sdiv = 0x2, .nsdiv = 0 }, /* 31.500 MHz */ + { .mdiv = 0x01, .pe = 0x0, .sdiv = 0x4, .nsdiv = 1 }, /* 40.000 MHz */ + { .mdiv = 0x15, .pe = 0x2aab, .sdiv = 0x3, .nsdiv = 1 }, /* 49.500 MHz */ + { .mdiv = 0x14, .pe = 0x6666, .sdiv = 0x3, .nsdiv = 1 }, /* 50.000 MHz */ + { .mdiv = 0x1d, .pe = 0x395f, .sdiv = 0x1, .nsdiv = 0 }, /* 57.284 MHz */ + { .mdiv = 0x08, .pe = 0x4ec5, .sdiv = 0x3, .nsdiv = 1 }, /* 65.000 MHz */ + { .mdiv = 0x05, .pe = 0x1770, .sdiv = 0x3, .nsdiv = 1 }, /* 71.000 MHz */ + { .mdiv = 0x03, .pe = 0x4ba7, .sdiv = 0x3, .nsdiv = 1 }, /* 74.176 MHz */ + { .mdiv = 0x0f, .pe = 0x3426, .sdiv = 0x1, .nsdiv = 0 }, /* 74.250 MHz */ + { .mdiv = 0x0e, .pe = 0x7777, .sdiv = 0x1, .nsdiv = 0 }, /* 75.000 MHz */ + { .mdiv = 0x01, .pe = 0x4053, .sdiv = 0x3, .nsdiv = 1 }, /* 78.800 MHz */ + { .mdiv = 0x09, .pe = 0x15b5, .sdiv = 0x1, .nsdiv = 0 }, /* 85.500 MHz */ + { .mdiv = 0x1b, .pe = 0x3f19, .sdiv = 0x2, .nsdiv = 1 }, /* 88.750 MHz */ + { .mdiv = 0x10, .pe = 0x71c7, .sdiv = 0x2, .nsdiv = 1 }, /* 108.000 MHz */ + { .mdiv = 0x00, .pe = 0x47af, .sdiv = 0x1, .nsdiv = 0 }, /* 108.108 MHz */ + { .mdiv = 0x0c, .pe = 0x3118, .sdiv = 0x2, .nsdiv = 1 }, /* 118.963 MHz */ + { .mdiv = 0x0c, .pe = 0x2f54, .sdiv = 0x2, .nsdiv = 1 }, /* 119.000 MHz */ + { .mdiv = 0x07, .pe = 0xe39, .sdiv = 0x2, .nsdiv = 1 }, /* 135.000 MHz */ + { .mdiv = 0x03, .pe = 0x4ba7, .sdiv = 0x2, .nsdiv = 1 }, /* 148.352 MHz */ + { .mdiv = 0x0f, .pe = 0x3426, .sdiv = 0x0, .nsdiv = 0 }, /* 148.500 MHz */ + { .mdiv = 0x03, .pe = 0x4ba7, .sdiv = 0x1, .nsdiv = 1 }, /* 296.704 MHz */ + { .mdiv = 0x03, .pe = 0x471c, .sdiv = 0x1, .nsdiv = 1 }, /* 297.000 MHz */ + { .mdiv = 0x00, .pe = 0x295f, .sdiv = 0x1, .nsdiv = 1 }, /* 326.700 MHz */ + { .mdiv = 0x1f, .pe = 0x3633, .sdiv = 0x0, .nsdiv = 1 }, /* 333.000 MHz */ + { .mdiv = 0x1c, .pe = 0x0, .sdiv = 0x0, .nsdiv = 1 }, /* 352.000 Mhz */ }; struct clkgen_quadfs_data { bool reset_present; bool bwfilter_present; bool lockstatus_present; + bool powerup_polarity; + bool standby_polarity; bool nsdiv_present; + bool nrst_present; struct clkgen_field ndiv; struct clkgen_field ref_bw; struct clkgen_field nreset; struct clkgen_field npda; struct clkgen_field lock_status; + struct clkgen_field nrst[QUADFS_MAX_CHAN]; struct clkgen_field nsb[QUADFS_MAX_CHAN]; struct clkgen_field en[QUADFS_MAX_CHAN]; struct clkgen_field mdiv[QUADFS_MAX_CHAN]; @@ -82,9 +137,9 @@ struct clkgen_quadfs_data { struct clkgen_field nsdiv[QUADFS_MAX_CHAN]; const struct clk_ops *pll_ops; - struct stm_fs *rtbl; + const struct stm_fs *rtbl; u8 rtbl_cnt; - int (*get_rate)(unsigned long , struct stm_fs *, + int (*get_rate)(unsigned long , const struct stm_fs *, unsigned long *); }; @@ -94,11 +149,11 @@ static const struct clk_ops st_quadfs_fs216c65_ops; static const struct clk_ops st_quadfs_fs432c65_ops; static const struct clk_ops st_quadfs_fs660c32_ops; -static int clk_fs216c65_get_rate(unsigned long, struct stm_fs *, +static int clk_fs216c65_get_rate(unsigned long, const struct stm_fs *, unsigned long *); -static int clk_fs432c65_get_rate(unsigned long, struct stm_fs *, +static int clk_fs432c65_get_rate(unsigned long, const struct stm_fs *, unsigned long *); -static int clk_fs660c32_dig_get_rate(unsigned long, struct stm_fs *, +static int clk_fs660c32_dig_get_rate(unsigned long, const struct stm_fs *, unsigned long *); /* * Values for all of the standalone instances of this clock @@ -106,7 +161,7 @@ static int clk_fs660c32_dig_get_rate(unsigned long, struct stm_fs *, * that the individual channel standby control bits (nsb) are in the * first register along with the PLL control bits. */ -static struct clkgen_quadfs_data st_fs216c65_416 = { +static const struct clkgen_quadfs_data st_fs216c65_416 = { /* 416 specific */ .npda = CLKGEN_FIELD(0x0, 0x1, 14), .nsb = { CLKGEN_FIELD(0x0, 0x1, 10), @@ -143,7 +198,7 @@ static struct clkgen_quadfs_data st_fs216c65_416 = { .get_rate = clk_fs216c65_get_rate, }; -static struct clkgen_quadfs_data st_fs432c65_416 = { +static const struct clkgen_quadfs_data st_fs432c65_416 = { .npda = CLKGEN_FIELD(0x0, 0x1, 14), .nsb = { CLKGEN_FIELD(0x0, 0x1, 10), CLKGEN_FIELD(0x0, 0x1, 11), @@ -179,7 +234,7 @@ static struct clkgen_quadfs_data st_fs432c65_416 = { .get_rate = clk_fs432c65_get_rate, }; -static struct clkgen_quadfs_data st_fs660c32_E_416 = { +static const struct clkgen_quadfs_data st_fs660c32_E_416 = { .npda = CLKGEN_FIELD(0x0, 0x1, 14), .nsb = { CLKGEN_FIELD(0x0, 0x1, 10), CLKGEN_FIELD(0x0, 0x1, 11), @@ -215,7 +270,7 @@ static struct clkgen_quadfs_data st_fs660c32_E_416 = { .get_rate = clk_fs660c32_dig_get_rate, }; -static struct clkgen_quadfs_data st_fs660c32_F_416 = { +static const struct clkgen_quadfs_data st_fs660c32_F_416 = { .npda = CLKGEN_FIELD(0x0, 0x1, 14), .nsb = { CLKGEN_FIELD(0x0, 0x1, 10), CLKGEN_FIELD(0x0, 0x1, 11), @@ -251,6 +306,91 @@ static struct clkgen_quadfs_data st_fs660c32_F_416 = { .get_rate = clk_fs660c32_dig_get_rate, }; +static const struct clkgen_quadfs_data st_fs660c32_C_407 = { + .nrst_present = true, + .nrst = { CLKGEN_FIELD(0x2f0, 0x1, 0), + CLKGEN_FIELD(0x2f0, 0x1, 1), + CLKGEN_FIELD(0x2f0, 0x1, 2), + CLKGEN_FIELD(0x2f0, 0x1, 3) }, + .npda = CLKGEN_FIELD(0x2f0, 0x1, 12), + .nsb = { CLKGEN_FIELD(0x2f0, 0x1, 8), + CLKGEN_FIELD(0x2f0, 0x1, 9), + CLKGEN_FIELD(0x2f0, 0x1, 10), + CLKGEN_FIELD(0x2f0, 0x1, 11) }, + .nsdiv_present = true, + .nsdiv = { CLKGEN_FIELD(0x304, 0x1, 24), + CLKGEN_FIELD(0x308, 0x1, 24), + CLKGEN_FIELD(0x30c, 0x1, 24), + CLKGEN_FIELD(0x310, 0x1, 24) }, + .mdiv = { CLKGEN_FIELD(0x304, 0x1f, 15), + CLKGEN_FIELD(0x308, 0x1f, 15), + CLKGEN_FIELD(0x30c, 0x1f, 15), + CLKGEN_FIELD(0x310, 0x1f, 15) }, + .en = { CLKGEN_FIELD(0x2fc, 0x1, 0), + CLKGEN_FIELD(0x2fc, 0x1, 1), + CLKGEN_FIELD(0x2fc, 0x1, 2), + CLKGEN_FIELD(0x2fc, 0x1, 3) }, + .ndiv = CLKGEN_FIELD(0x2f4, 0x7, 16), + .pe = { CLKGEN_FIELD(0x304, 0x7fff, 0), + CLKGEN_FIELD(0x308, 0x7fff, 0), + CLKGEN_FIELD(0x30c, 0x7fff, 0), + CLKGEN_FIELD(0x310, 0x7fff, 0) }, + .sdiv = { CLKGEN_FIELD(0x304, 0xf, 20), + CLKGEN_FIELD(0x308, 0xf, 20), + CLKGEN_FIELD(0x30c, 0xf, 20), + CLKGEN_FIELD(0x310, 0xf, 20) }, + .lockstatus_present = true, + .lock_status = CLKGEN_FIELD(0x2A0, 0x1, 24), + .powerup_polarity = 1, + .standby_polarity = 1, + .pll_ops = &st_quadfs_pll_c32_ops, + .rtbl = fs660c32_rtbl, + .rtbl_cnt = ARRAY_SIZE(fs660c32_rtbl), + .get_rate = clk_fs660c32_dig_get_rate, +}; + +static const struct clkgen_quadfs_data st_fs660c32_D_407 = { + .nrst_present = true, + .nrst = { CLKGEN_FIELD(0x2a0, 0x1, 0), + CLKGEN_FIELD(0x2a0, 0x1, 1), + CLKGEN_FIELD(0x2a0, 0x1, 2), + CLKGEN_FIELD(0x2a0, 0x1, 3) }, + .ndiv = CLKGEN_FIELD(0x2a4, 0x7, 16), + .pe = { CLKGEN_FIELD(0x2b4, 0x7fff, 0), + CLKGEN_FIELD(0x2b8, 0x7fff, 0), + CLKGEN_FIELD(0x2bc, 0x7fff, 0), + CLKGEN_FIELD(0x2c0, 0x7fff, 0) }, + .sdiv = { CLKGEN_FIELD(0x2b4, 0xf, 20), + CLKGEN_FIELD(0x2b8, 0xf, 20), + CLKGEN_FIELD(0x2bc, 0xf, 20), + CLKGEN_FIELD(0x2c0, 0xf, 20) }, + .npda = CLKGEN_FIELD(0x2a0, 0x1, 12), + .nsb = { CLKGEN_FIELD(0x2a0, 0x1, 8), + CLKGEN_FIELD(0x2a0, 0x1, 9), + CLKGEN_FIELD(0x2a0, 0x1, 10), + CLKGEN_FIELD(0x2a0, 0x1, 11) }, + .nsdiv_present = true, + .nsdiv = { CLKGEN_FIELD(0x2b4, 0x1, 24), + CLKGEN_FIELD(0x2b8, 0x1, 24), + CLKGEN_FIELD(0x2bc, 0x1, 24), + CLKGEN_FIELD(0x2c0, 0x1, 24) }, + .mdiv = { CLKGEN_FIELD(0x2b4, 0x1f, 15), + CLKGEN_FIELD(0x2b8, 0x1f, 15), + CLKGEN_FIELD(0x2bc, 0x1f, 15), + CLKGEN_FIELD(0x2c0, 0x1f, 15) }, + .en = { CLKGEN_FIELD(0x2ac, 0x1, 0), + CLKGEN_FIELD(0x2ac, 0x1, 1), + CLKGEN_FIELD(0x2ac, 0x1, 2), + CLKGEN_FIELD(0x2ac, 0x1, 3) }, + .lockstatus_present = true, + .lock_status = CLKGEN_FIELD(0x2A0, 0x1, 24), + .powerup_polarity = 1, + .standby_polarity = 1, + .pll_ops = &st_quadfs_pll_c32_ops, + .rtbl = fs660c32_rtbl, + .rtbl_cnt = ARRAY_SIZE(fs660c32_rtbl), + .get_rate = clk_fs660c32_dig_get_rate,}; + /** * DOC: A Frequency Synthesizer that multiples its input clock by a fixed factor * @@ -308,7 +448,7 @@ static int quadfs_pll_enable(struct clk_hw *hw) /* * Power up the PLL */ - CLKGEN_WRITE(pll, npda, 1); + CLKGEN_WRITE(pll, npda, !pll->data->powerup_polarity); if (pll->lock) spin_unlock_irqrestore(pll->lock, flags); @@ -335,7 +475,7 @@ static void quadfs_pll_disable(struct clk_hw *hw) * Powerdown the PLL and then put block into soft reset if we have * reset control. */ - CLKGEN_WRITE(pll, npda, 0); + CLKGEN_WRITE(pll, npda, pll->data->powerup_polarity); if (pll->data->reset_present) CLKGEN_WRITE(pll, nreset, 0); @@ -611,7 +751,10 @@ static int quadfs_fsynth_enable(struct clk_hw *hw) if (fs->lock) spin_lock_irqsave(fs->lock, flags); - CLKGEN_WRITE(fs, nsb[fs->chan], 1); + CLKGEN_WRITE(fs, nsb[fs->chan], !fs->data->standby_polarity); + + if (fs->data->nrst_present) + CLKGEN_WRITE(fs, nrst[fs->chan], 0); if (fs->lock) spin_unlock_irqrestore(fs->lock, flags); @@ -631,7 +774,7 @@ static void quadfs_fsynth_disable(struct clk_hw *hw) if (fs->lock) spin_lock_irqsave(fs->lock, flags); - CLKGEN_WRITE(fs, nsb[fs->chan], 0); + CLKGEN_WRITE(fs, nsb[fs->chan], !fs->data->standby_polarity); if (fs->lock) spin_unlock_irqrestore(fs->lock, flags); @@ -645,12 +788,12 @@ static int quadfs_fsynth_is_enabled(struct clk_hw *hw) pr_debug("%s: %s enable bit = 0x%x\n", __func__, __clk_get_name(hw->clk), nsb); - return !!nsb; + return fs->data->standby_polarity ? !nsb : !!nsb; } #define P15 (uint64_t)(1 << 15) -static int clk_fs216c65_get_rate(unsigned long input, struct stm_fs *fs, +static int clk_fs216c65_get_rate(unsigned long input, const struct stm_fs *fs, unsigned long *rate) { uint64_t res; @@ -670,7 +813,7 @@ static int clk_fs216c65_get_rate(unsigned long input, struct stm_fs *fs, return 0; } -static int clk_fs432c65_get_rate(unsigned long input, struct stm_fs *fs, +static int clk_fs432c65_get_rate(unsigned long input, const struct stm_fs *fs, unsigned long *rate) { uint64_t res; @@ -693,7 +836,7 @@ static int clk_fs432c65_get_rate(unsigned long input, struct stm_fs *fs, #define P20 (uint64_t)(1 << 20) static int clk_fs660c32_dig_get_rate(unsigned long input, - struct stm_fs *fs, unsigned long *rate) + const struct stm_fs *fs, unsigned long *rate) { unsigned long s = (1 << fs->sdiv); unsigned long ns; @@ -749,7 +892,7 @@ static long quadfs_find_best_rate(struct clk_hw *hw, unsigned long drate, { struct st_clk_quadfs_fsynth *fs = to_quadfs_fsynth(hw); int (*clk_fs_get_rate)(unsigned long , - struct stm_fs *, unsigned long *); + const struct stm_fs *, unsigned long *); struct stm_fs prev_params; unsigned long prev_rate, rate = 0; unsigned long diff_rate, prev_diff_rate = ~0; @@ -793,7 +936,7 @@ static unsigned long quadfs_recalc_rate(struct clk_hw *hw, unsigned long rate = 0; struct stm_fs params; int (*clk_fs_get_rate)(unsigned long , - struct stm_fs *, unsigned long *); + const struct stm_fs *, unsigned long *); clk_fs_get_rate = fs->data->get_rate; @@ -917,19 +1060,31 @@ static struct clk * __init st_clk_register_quadfs_fsynth( static struct of_device_id quadfs_of_match[] = { { .compatible = "st,stih416-quadfs216", - .data = (void *)&st_fs216c65_416 + .data = &st_fs216c65_416 }, { .compatible = "st,stih416-quadfs432", - .data = (void *)&st_fs432c65_416 + .data = &st_fs432c65_416 }, { .compatible = "st,stih416-quadfs660-E", - .data = (void *)&st_fs660c32_E_416 + .data = &st_fs660c32_E_416 }, { .compatible = "st,stih416-quadfs660-F", - .data = (void *)&st_fs660c32_F_416 + .data = &st_fs660c32_F_416 + }, + { + .compatible = "st,stih407-quadfs660-C", + .data = &st_fs660c32_C_407 + }, + { + .compatible = "st,stih407-quadfs660-D", + .data = &st_fs660c32_D_407 + }, + { + .compatible = "st,stih407-quadfs660-D", + .data = (void *)&st_fs660c32_D_407 }, {} }; diff --git a/drivers/clk/st/clkgen-mux.c b/drivers/clk/st/clkgen-mux.c index a329906d1e8..79dc40b5cc6 100644 --- a/drivers/clk/st/clkgen-mux.c +++ b/drivers/clk/st/clkgen-mux.c @@ -580,6 +580,11 @@ static struct clkgen_mux_data stih416_a9_mux_data = { .shift = 0, .width = 2, }; +static struct clkgen_mux_data stih407_a9_mux_data = { + .offset = 0x1a4, + .shift = 1, + .width = 2, +}; static struct of_device_id mux_of_match[] = { { @@ -610,6 +615,10 @@ static struct of_device_id mux_of_match[] = { .compatible = "st,stih416-clkgen-a9-mux", .data = &stih416_a9_mux_data, }, + { + .compatible = "st,stih407-clkgen-a9-mux", + .data = &stih407_a9_mux_data, + }, {} }; @@ -765,7 +774,8 @@ void __init st_of_clkgen_vcc_setup(struct device_node *np) div->reg = reg + VCC_DIV_OFFSET; div->shift = 2 * i; div->width = 2; - div->flags = CLK_DIVIDER_POWER_OF_TWO; + div->flags = CLK_DIVIDER_POWER_OF_TWO | + CLK_DIVIDER_ROUND_CLOSEST; mux->reg = reg + VCC_MUX_OFFSET; mux->shift = 2 * i; diff --git a/drivers/clk/st/clkgen-pll.c b/drivers/clk/st/clkgen-pll.c index d8b9b1a2aed..29769d79e30 100644 --- a/drivers/clk/st/clkgen-pll.c +++ b/drivers/clk/st/clkgen-pll.c @@ -59,7 +59,7 @@ static const struct clk_ops st_pll800c65_ops; static const struct clk_ops stm_pll3200c32_ops; static const struct clk_ops st_pll1200c32_ops; -static struct clkgen_pll_data st_pll1600c65_ax = { +static const struct clkgen_pll_data st_pll1600c65_ax = { .pdn_status = CLKGEN_FIELD(0x0, 0x1, 19), .locked_status = CLKGEN_FIELD(0x0, 0x1, 31), .mdiv = CLKGEN_FIELD(0x0, C65_MDIV_PLL1600_MASK, 0), @@ -67,7 +67,7 @@ static struct clkgen_pll_data st_pll1600c65_ax = { .ops = &st_pll1600c65_ops }; -static struct clkgen_pll_data st_pll800c65_ax = { +static const struct clkgen_pll_data st_pll800c65_ax = { .pdn_status = CLKGEN_FIELD(0x0, 0x1, 19), .locked_status = CLKGEN_FIELD(0x0, 0x1, 31), .mdiv = CLKGEN_FIELD(0x0, C65_MDIV_PLL800_MASK, 0), @@ -76,7 +76,7 @@ static struct clkgen_pll_data st_pll800c65_ax = { .ops = &st_pll800c65_ops }; -static struct clkgen_pll_data st_pll3200c32_a1x_0 = { +static const struct clkgen_pll_data st_pll3200c32_a1x_0 = { .pdn_status = CLKGEN_FIELD(0x0, 0x1, 31), .locked_status = CLKGEN_FIELD(0x4, 0x1, 31), .ndiv = CLKGEN_FIELD(0x0, C32_NDIV_MASK, 0x0), @@ -93,7 +93,7 @@ static struct clkgen_pll_data st_pll3200c32_a1x_0 = { .ops = &stm_pll3200c32_ops, }; -static struct clkgen_pll_data st_pll3200c32_a1x_1 = { +static const struct clkgen_pll_data st_pll3200c32_a1x_1 = { .pdn_status = CLKGEN_FIELD(0xC, 0x1, 31), .locked_status = CLKGEN_FIELD(0x10, 0x1, 31), .ndiv = CLKGEN_FIELD(0xC, C32_NDIV_MASK, 0x0), @@ -111,7 +111,7 @@ static struct clkgen_pll_data st_pll3200c32_a1x_1 = { }; /* 415 specific */ -static struct clkgen_pll_data st_pll3200c32_a9_415 = { +static const struct clkgen_pll_data st_pll3200c32_a9_415 = { .pdn_status = CLKGEN_FIELD(0x0, 0x1, 0), .locked_status = CLKGEN_FIELD(0x6C, 0x1, 0), .ndiv = CLKGEN_FIELD(0x0, C32_NDIV_MASK, 9), @@ -122,7 +122,7 @@ static struct clkgen_pll_data st_pll3200c32_a9_415 = { .ops = &stm_pll3200c32_ops, }; -static struct clkgen_pll_data st_pll3200c32_ddr_415 = { +static const struct clkgen_pll_data st_pll3200c32_ddr_415 = { .pdn_status = CLKGEN_FIELD(0x0, 0x1, 0), .locked_status = CLKGEN_FIELD(0x100, 0x1, 0), .ndiv = CLKGEN_FIELD(0x8, C32_NDIV_MASK, 0), @@ -135,7 +135,7 @@ static struct clkgen_pll_data st_pll3200c32_ddr_415 = { .ops = &stm_pll3200c32_ops, }; -static struct clkgen_pll_data st_pll1200c32_gpu_415 = { +static const struct clkgen_pll_data st_pll1200c32_gpu_415 = { .pdn_status = CLKGEN_FIELD(0x144, 0x1, 3), .locked_status = CLKGEN_FIELD(0x168, 0x1, 0), .ldf = CLKGEN_FIELD(0x0, C32_LDF_MASK, 3), @@ -146,7 +146,7 @@ static struct clkgen_pll_data st_pll1200c32_gpu_415 = { }; /* 416 specific */ -static struct clkgen_pll_data st_pll3200c32_a9_416 = { +static const struct clkgen_pll_data st_pll3200c32_a9_416 = { .pdn_status = CLKGEN_FIELD(0x0, 0x1, 0), .locked_status = CLKGEN_FIELD(0x6C, 0x1, 0), .ndiv = CLKGEN_FIELD(0x8, C32_NDIV_MASK, 0), @@ -157,7 +157,7 @@ static struct clkgen_pll_data st_pll3200c32_a9_416 = { .ops = &stm_pll3200c32_ops, }; -static struct clkgen_pll_data st_pll3200c32_ddr_416 = { +static const struct clkgen_pll_data st_pll3200c32_ddr_416 = { .pdn_status = CLKGEN_FIELD(0x0, 0x1, 0), .locked_status = CLKGEN_FIELD(0x10C, 0x1, 0), .ndiv = CLKGEN_FIELD(0x8, C32_NDIV_MASK, 0), @@ -170,7 +170,7 @@ static struct clkgen_pll_data st_pll3200c32_ddr_416 = { .ops = &stm_pll3200c32_ops, }; -static struct clkgen_pll_data st_pll1200c32_gpu_416 = { +static const struct clkgen_pll_data st_pll1200c32_gpu_416 = { .pdn_status = CLKGEN_FIELD(0x8E4, 0x1, 3), .locked_status = CLKGEN_FIELD(0x90C, 0x1, 0), .ldf = CLKGEN_FIELD(0x0, C32_LDF_MASK, 3), @@ -180,6 +180,54 @@ static struct clkgen_pll_data st_pll1200c32_gpu_416 = { .ops = &st_pll1200c32_ops, }; +static const struct clkgen_pll_data st_pll3200c32_407_a0 = { + /* 407 A0 */ + .pdn_status = CLKGEN_FIELD(0x2a0, 0x1, 8), + .locked_status = CLKGEN_FIELD(0x2a0, 0x1, 24), + .ndiv = CLKGEN_FIELD(0x2a4, C32_NDIV_MASK, 16), + .idf = CLKGEN_FIELD(0x2a4, C32_IDF_MASK, 0x0), + .num_odfs = 1, + .odf = { CLKGEN_FIELD(0x2b4, C32_ODF_MASK, 0) }, + .odf_gate = { CLKGEN_FIELD(0x2b4, 0x1, 6) }, + .ops = &stm_pll3200c32_ops, +}; + +static const struct clkgen_pll_data st_pll3200c32_407_c0_0 = { + /* 407 C0 PLL0 */ + .pdn_status = CLKGEN_FIELD(0x2a0, 0x1, 8), + .locked_status = CLKGEN_FIELD(0x2a0, 0x1, 24), + .ndiv = CLKGEN_FIELD(0x2a4, C32_NDIV_MASK, 16), + .idf = CLKGEN_FIELD(0x2a4, C32_IDF_MASK, 0x0), + .num_odfs = 1, + .odf = { CLKGEN_FIELD(0x2b4, C32_ODF_MASK, 0) }, + .odf_gate = { CLKGEN_FIELD(0x2b4, 0x1, 6) }, + .ops = &stm_pll3200c32_ops, +}; + +static const struct clkgen_pll_data st_pll3200c32_407_c0_1 = { + /* 407 C0 PLL1 */ + .pdn_status = CLKGEN_FIELD(0x2c8, 0x1, 8), + .locked_status = CLKGEN_FIELD(0x2c8, 0x1, 24), + .ndiv = CLKGEN_FIELD(0x2cc, C32_NDIV_MASK, 16), + .idf = CLKGEN_FIELD(0x2cc, C32_IDF_MASK, 0x0), + .num_odfs = 1, + .odf = { CLKGEN_FIELD(0x2dc, C32_ODF_MASK, 0) }, + .odf_gate = { CLKGEN_FIELD(0x2dc, 0x1, 6) }, + .ops = &stm_pll3200c32_ops, +}; + +static const struct clkgen_pll_data st_pll3200c32_407_a9 = { + /* 407 A9 */ + .pdn_status = CLKGEN_FIELD(0x1a8, 0x1, 0), + .locked_status = CLKGEN_FIELD(0x87c, 0x1, 0), + .ndiv = CLKGEN_FIELD(0x1b0, C32_NDIV_MASK, 0), + .idf = CLKGEN_FIELD(0x1a8, C32_IDF_MASK, 25), + .num_odfs = 1, + .odf = { CLKGEN_FIELD(0x1b0, C32_ODF_MASK, 8) }, + .odf_gate = { CLKGEN_FIELD(0x1ac, 0x1, 28) }, + .ops = &stm_pll3200c32_ops, +}; + /** * DOC: Clock Generated by PLL, rate set and enabled by bootloader * @@ -450,9 +498,8 @@ static void __init clkgena_c65_pll_setup(struct device_node *np) * PLL0 HS (high speed) output */ clk_data->clks[0] = clkgen_pll_register(parent_name, - &st_pll1600c65_ax, - reg + CLKGENAx_PLL0_OFFSET, - clk_name); + (struct clkgen_pll_data *) &st_pll1600c65_ax, + reg + CLKGENAx_PLL0_OFFSET, clk_name); if (IS_ERR(clk_data->clks[0])) goto err; @@ -480,9 +527,8 @@ static void __init clkgena_c65_pll_setup(struct device_node *np) * PLL1 output */ clk_data->clks[2] = clkgen_pll_register(parent_name, - &st_pll800c65_ax, - reg + CLKGENAx_PLL1_OFFSET, - clk_name); + (struct clkgen_pll_data *) &st_pll800c65_ax, + reg + CLKGENAx_PLL1_OFFSET, clk_name); if (IS_ERR(clk_data->clks[2])) goto err; @@ -572,6 +618,22 @@ static struct of_device_id c32_pll_of_match[] = { .compatible = "st,stih416-plls-c32-ddr", .data = &st_pll3200c32_ddr_416, }, + { + .compatible = "st,stih407-plls-c32-a0", + .data = &st_pll3200c32_407_a0, + }, + { + .compatible = "st,stih407-plls-c32-c0_0", + .data = &st_pll3200c32_407_c0_0, + }, + { + .compatible = "st,stih407-plls-c32-c0_1", + .data = &st_pll3200c32_407_c0_1, + }, + { + .compatible = "st,stih407-plls-c32-a9", + .data = &st_pll3200c32_407_a9, + }, {} }; |