#define MESON_PLL_RESET BIT(29)
#define MESON_PLL_LOCK BIT(31)
-struct meson_clk_pll {
- struct clk_hw hw;
- void __iomem *base;
- struct pll_conf *conf;
- unsigned int rate_count;
- spinlock_t *lock;
-};
#define to_meson_clk_pll(_hw) container_of(_hw, struct meson_clk_pll, hw)
static unsigned long meson_clk_pll_recalc_rate(struct clk_hw *hw,
u16 n, m, od;
u32 reg;
- p = &pll->conf->n;
+ p = &pll->n;
reg = readl(pll->base + p->reg_off);
n = PARM_GET(p->width, p->shift, reg);
- p = &pll->conf->m;
+ p = &pll->m;
reg = readl(pll->base + p->reg_off);
m = PARM_GET(p->width, p->shift, reg);
- p = &pll->conf->od;
+ p = &pll->od;
reg = readl(pll->base + p->reg_off);
od = PARM_GET(p->width, p->shift, reg);
unsigned long *parent_rate)
{
struct meson_clk_pll *pll = to_meson_clk_pll(hw);
- const struct pll_rate_table *rate_table = pll->conf->rate_table;
+ const struct pll_rate_table *rate_table = pll->rate_table;
int i;
for (i = 0; i < pll->rate_count; i++) {
static const struct pll_rate_table *meson_clk_get_pll_settings(struct meson_clk_pll *pll,
unsigned long rate)
{
- const struct pll_rate_table *rate_table = pll->conf->rate_table;
+ const struct pll_rate_table *rate_table = pll->rate_table;
int i;
for (i = 0; i < pll->rate_count; i++) {
return -EINVAL;
/* PLL reset */
- p = &pll->conf->n;
+ p = &pll->n;
reg = readl(pll->base + p->reg_off);
writel(reg | MESON_PLL_RESET, pll->base + p->reg_off);
reg = PARM_SET(p->width, p->shift, reg, rate_set->n);
writel(reg, pll->base + p->reg_off);
- p = &pll->conf->m;
+ p = &pll->m;
reg = readl(pll->base + p->reg_off);
reg = PARM_SET(p->width, p->shift, reg, rate_set->m);
writel(reg, pll->base + p->reg_off);
- p = &pll->conf->od;
+ p = &pll->od;
reg = readl(pll->base + p->reg_off);
reg = PARM_SET(p->width, p->shift, reg, rate_set->od);
writel(reg, pll->base + p->reg_off);
- p = &pll->conf->n;
+ p = &pll->n;
ret = meson_clk_pll_wait_lock(pll, p);
if (ret) {
pr_warn("%s: pll did not lock, trying to restore old rate %lu\n",
return ret;
}
-static const struct clk_ops meson_clk_pll_ops = {
+const struct clk_ops meson_clk_pll_ops = {
.recalc_rate = meson_clk_pll_recalc_rate,
.round_rate = meson_clk_pll_round_rate,
.set_rate = meson_clk_pll_set_rate,
};
-static const struct clk_ops meson_clk_pll_ro_ops = {
+const struct clk_ops meson_clk_pll_ro_ops = {
.recalc_rate = meson_clk_pll_recalc_rate,
};
-
-struct clk *meson_clk_register_pll(const struct clk_conf *clk_conf,
- void __iomem *reg_base,
- spinlock_t *lock)
-{
- struct clk *clk;
- struct meson_clk_pll *clk_pll;
- struct clk_init_data init;
-
- clk_pll = kzalloc(sizeof(*clk_pll), GFP_KERNEL);
- if (!clk_pll)
- return ERR_PTR(-ENOMEM);
-
- clk_pll->base = reg_base + clk_conf->reg_off;
- clk_pll->lock = lock;
- clk_pll->conf = clk_conf->conf.pll;
-
- init.name = clk_conf->clk_name;
- init.flags = clk_conf->flags | CLK_GET_RATE_NOCACHE;
-
- init.parent_names = &clk_conf->clks_parent[0];
- init.num_parents = 1;
- init.ops = &meson_clk_pll_ro_ops;
-
- /* If no rate_table is specified we assume the PLL is read-only */
- if (clk_pll->conf->rate_table) {
- int len;
-
- for (len = 0; clk_pll->conf->rate_table[len].rate != 0; )
- len++;
-
- clk_pll->rate_count = len;
- init.ops = &meson_clk_pll_ops;
- }
-
- clk_pll->hw.init = &init;
-
- clk = clk_register(NULL, &clk_pll->hw);
- if (IS_ERR(clk))
- kfree(clk_pll);
-
- return clk;
-}
#include "clkc.h"
-static DEFINE_SPINLOCK(clk_lock);
+DEFINE_SPINLOCK(clk_lock);
static struct clk **clks;
static struct clk_onecell_data clk_data;
clk = meson_clk_register_cpu(clk_conf, clk_base,
&clk_lock);
break;
- case CLK_PLL:
- clk = meson_clk_register_pll(clk_conf, clk_base,
- &clk_lock);
- break;
default:
clk = NULL;
}
u8 shift;
u8 width;
};
-#define PARM(_r, _s, _w) \
- { \
- .reg_off = (_r), \
- .shift = (_s), \
- .width = (_w), \
- } \
+
+#define PARM(_r, _s, _w) \
+{ \
+ .reg_off = (_r), \
+ .shift = (_s), \
+ .width = (_w), \
+} \
struct pll_rate_table {
unsigned long rate;
.od = (_od), \
} \
-struct pll_conf {
- const struct pll_rate_table *rate_table;
- struct parm m;
- struct parm n;
- struct parm od;
+struct meson_clk_pll {
+ struct clk_hw hw;
+ void __iomem *base;
+ struct parm m;
+ struct parm n;
+ struct parm od;
+ const struct pll_rate_table *rate_table;
+ unsigned int rate_count;
+ spinlock_t *lock;
};
+#define to_meson_clk_pll(_hw) container_of(_hw, struct meson_clk_pll, hw)
+
struct fixed_fact_conf {
unsigned int div;
unsigned int mult;
CLK_FIXED_FACTOR,
CLK_COMPOSITE,
CLK_CPU,
- CLK_PLL,
};
struct clk_conf {
union {
struct fixed_fact_conf fixed_fact;
const struct composite_conf *composite;
- struct pll_conf *pll;
const struct clk_div_table *div_table;
} conf;
};
-#define PLL(_ro, _ci, _cn, _cp, _f, _c) \
- { \
- .reg_off = (_ro), \
- .clk_type = CLK_PLL, \
- .clk_id = (_ci), \
- .clk_name = (_cn), \
- .clks_parent = (_cp), \
- .num_parents = ARRAY_SIZE(_cp), \
- .flags = (_f), \
- .conf.pll = (_c), \
- } \
-
#define FIXED_FACTOR_DIV(_ci, _cn, _cp, _f, _d) \
{ \
.clk_type = CLK_FIXED_FACTOR, \
unsigned int nr_confs, void __iomem *clk_base);
struct clk *meson_clk_register_cpu(const struct clk_conf *clk_conf,
void __iomem *reg_base, spinlock_t *lock);
-struct clk *meson_clk_register_pll(const struct clk_conf *clk_conf,
- void __iomem *reg_base, spinlock_t *lock);
+
+/* shared data */
+extern spinlock_t clk_lock;
+
+/* clk_ops */
+extern const struct clk_ops meson_clk_pll_ro_ops;
+extern const struct clk_ops meson_clk_pll_ops;
#endif /* __CLKC_H */
{ /* sentinel */ },
};
-PNAME(p_xtal) = { "xtal" };
PNAME(p_fclk_div) = { "fixed_pll" };
PNAME(p_cpu_clk) = { "sys_pll" };
PNAME(p_clk81) = { "fclk_div3", "fclk_div4", "fclk_div5" };
static u32 mux_table_clk81[] = { 6, 5, 7 };
static u32 mux_table_mali[] = { 6, 5, 7, 4, 0 };
-static struct pll_conf pll_confs = {
- .m = PARM(0x00, 0, 9),
- .n = PARM(0x00, 9, 5),
- .od = PARM(0x00, 16, 2),
-};
-
-static struct pll_conf sys_pll_conf = {
- .m = PARM(0x00, 0, 9),
- .n = PARM(0x00, 9, 5),
- .od = PARM(0x00, 16, 2),
- .rate_table = sys_pll_rate_table,
-};
-
static const struct composite_conf clk81_conf __initconst = {
.mux_table = mux_table_clk81,
.mux_flags = CLK_MUX_READ_ONLY,
},
};
+static struct meson_clk_pll meson8b_fixed_pll = {
+ .m = {
+ .reg_off = MESON8B_REG_PLL_FIXED,
+ .shift = 0,
+ .width = 9,
+ },
+ .n = {
+ .reg_off = MESON8B_REG_PLL_FIXED,
+ .shift = 9,
+ .width = 5,
+ },
+ .od = {
+ .reg_off = MESON8B_REG_PLL_FIXED,
+ .shift = 16,
+ .width = 2,
+ },
+ .lock = &clk_lock,
+ .hw.init = &(struct clk_init_data){
+ .name = "fixed_pll",
+ .ops = &meson_clk_pll_ro_ops,
+ .parent_names = (const char *[]){ "xtal" },
+ .num_parents = 1,
+ .flags = CLK_GET_RATE_NOCACHE,
+ },
+};
+
+static struct meson_clk_pll meson8b_vid_pll = {
+ .m = {
+ .reg_off = MESON8B_REG_PLL_VID,
+ .shift = 0,
+ .width = 9,
+ },
+ .n = {
+ .reg_off = MESON8B_REG_PLL_VID,
+ .shift = 9,
+ .width = 5,
+ },
+ .od = {
+ .reg_off = MESON8B_REG_PLL_VID,
+ .shift = 16,
+ .width = 2,
+ },
+ .lock = &clk_lock,
+ .hw.init = &(struct clk_init_data){
+ .name = "vid_pll",
+ .ops = &meson_clk_pll_ro_ops,
+ .parent_names = (const char *[]){ "xtal" },
+ .num_parents = 1,
+ .flags = CLK_GET_RATE_NOCACHE,
+ },
+};
+
+static struct meson_clk_pll meson8b_sys_pll = {
+ .m = {
+ .reg_off = MESON8B_REG_PLL_SYS,
+ .shift = 0,
+ .width = 9,
+ },
+ .n = {
+ .reg_off = MESON8B_REG_PLL_SYS,
+ .shift = 9,
+ .width = 5,
+ },
+ .od = {
+ .reg_off = MESON8B_REG_PLL_SYS,
+ .shift = 16,
+ .width = 2,
+ },
+ .rate_table = sys_pll_rate_table,
+ .rate_count = ARRAY_SIZE(sys_pll_rate_table),
+ .lock = &clk_lock,
+ .hw.init = &(struct clk_init_data){
+ .name = "sys_pll",
+ .ops = &meson_clk_pll_ops,
+ .parent_names = (const char *[]){ "xtal" },
+ .num_parents = 1,
+ .flags = CLK_GET_RATE_NOCACHE,
+ },
+};
+
static const struct clk_conf meson8b_clk_confs[] __initconst = {
- PLL(MESON8B_REG_PLL_FIXED, CLKID_PLL_FIXED, "fixed_pll",
- p_xtal, 0, &pll_confs),
- PLL(MESON8B_REG_PLL_VID, CLKID_PLL_VID, "vid_pll",
- p_xtal, 0, &pll_confs),
- PLL(MESON8B_REG_PLL_SYS, CLKID_PLL_SYS, "sys_pll",
- p_xtal, 0, &sys_pll_conf),
FIXED_FACTOR_DIV(CLKID_FCLK_DIV2, "fclk_div2", p_fclk_div, 0, 2),
FIXED_FACTOR_DIV(CLKID_FCLK_DIV3, "fclk_div3", p_fclk_div, 0, 3),
FIXED_FACTOR_DIV(CLKID_FCLK_DIV4, "fclk_div4", p_fclk_div, 0, 4),
.hws = {
[CLKID_XTAL] = &meson8b_xtal.hw,
[CLKID_ZERO] = &meson8b_zero.hw,
+ [CLKID_PLL_FIXED] = &meson8b_fixed_pll.hw,
+ [CLKID_PLL_VID] = &meson8b_vid_pll.hw,
+ [CLKID_PLL_SYS] = &meson8b_sys_pll.hw,
},
.num = CLK_NR_CLKS,
};
+static struct meson_clk_pll *const meson8b_clk_plls[] = {
+ &meson8b_fixed_pll,
+ &meson8b_vid_pll,
+ &meson8b_sys_pll,
+};
+
static void __init meson8b_clkc_init(struct device_node *np)
{
void __iomem *clk_base;
- int ret, clkid;
+ int ret, clkid, i;
if (!meson_clk_init(np, CLK_NR_CLKS))
return;
return;
}
+ /* Populate base address for PLLs */
+ for (i = 0; i < ARRAY_SIZE(meson8b_clk_plls); i++)
+ meson8b_clk_plls[i]->base = clk_base;
+
/*
* register all clks
* CLKID_UNUSED = 0, so skip it and start with CLKID_XTAL = 1
projects / karo-tx-linux.git / commitdiff