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path: root/drivers/clk/tegra/clk-pll.c
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Diffstat (limited to 'drivers/clk/tegra/clk-pll.c')
-rw-r--r--drivers/clk/tegra/clk-pll.c407
1 files changed, 311 insertions, 96 deletions
diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c
index 197074a57754..2dd432266ef6 100644
--- a/drivers/clk/tegra/clk-pll.c
+++ b/drivers/clk/tegra/clk-pll.c
@@ -77,7 +77,23 @@
#define PLLE_MISC_SETUP_VALUE (7 << PLLE_MISC_SETUP_BASE_SHIFT)
#define PLLE_SS_CTRL 0x68
-#define PLLE_SS_DISABLE (7 << 10)
+#define PLLE_SS_CNTL_BYPASS_SS BIT(10)
+#define PLLE_SS_CNTL_INTERP_RESET BIT(11)
+#define PLLE_SS_CNTL_SSC_BYP BIT(12)
+#define PLLE_SS_CNTL_CENTER BIT(14)
+#define PLLE_SS_CNTL_INVERT BIT(15)
+#define PLLE_SS_DISABLE (PLLE_SS_CNTL_BYPASS_SS | PLLE_SS_CNTL_INTERP_RESET |\
+ PLLE_SS_CNTL_SSC_BYP)
+#define PLLE_SS_MAX_MASK 0x1ff
+#define PLLE_SS_MAX_VAL 0x25
+#define PLLE_SS_INC_MASK (0xff << 16)
+#define PLLE_SS_INC_VAL (0x1 << 16)
+#define PLLE_SS_INCINTRV_MASK (0x3f << 24)
+#define PLLE_SS_INCINTRV_VAL (0x20 << 24)
+#define PLLE_SS_COEFFICIENTS_MASK \
+ (PLLE_SS_MAX_MASK | PLLE_SS_INC_MASK | PLLE_SS_INCINTRV_MASK)
+#define PLLE_SS_COEFFICIENTS_VAL \
+ (PLLE_SS_MAX_VAL | PLLE_SS_INC_VAL | PLLE_SS_INCINTRV_VAL)
#define PLLE_AUX_PLLP_SEL BIT(2)
#define PLLE_AUX_ENABLE_SWCTL BIT(4)
@@ -121,6 +137,36 @@
#define PMC_SATA_PWRGT_PLLE_IDDQ_VALUE BIT(5)
#define PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL BIT(4)
+#define PLLSS_MISC_KCP 0
+#define PLLSS_MISC_KVCO 0
+#define PLLSS_MISC_SETUP 0
+#define PLLSS_EN_SDM 0
+#define PLLSS_EN_SSC 0
+#define PLLSS_EN_DITHER2 0
+#define PLLSS_EN_DITHER 1
+#define PLLSS_SDM_RESET 0
+#define PLLSS_CLAMP 0
+#define PLLSS_SDM_SSC_MAX 0
+#define PLLSS_SDM_SSC_MIN 0
+#define PLLSS_SDM_SSC_STEP 0
+#define PLLSS_SDM_DIN 0
+#define PLLSS_MISC_DEFAULT ((PLLSS_MISC_KCP << 25) | \
+ (PLLSS_MISC_KVCO << 24) | \
+ PLLSS_MISC_SETUP)
+#define PLLSS_CFG_DEFAULT ((PLLSS_EN_SDM << 31) | \
+ (PLLSS_EN_SSC << 30) | \
+ (PLLSS_EN_DITHER2 << 29) | \
+ (PLLSS_EN_DITHER << 28) | \
+ (PLLSS_SDM_RESET) << 27 | \
+ (PLLSS_CLAMP << 22))
+#define PLLSS_CTRL1_DEFAULT \
+ ((PLLSS_SDM_SSC_MAX << 16) | PLLSS_SDM_SSC_MIN)
+#define PLLSS_CTRL2_DEFAULT \
+ ((PLLSS_SDM_SSC_STEP << 16) | PLLSS_SDM_DIN)
+#define PLLSS_LOCK_OVERRIDE BIT(24)
+#define PLLSS_REF_SRC_SEL_SHIFT 25
+#define PLLSS_REF_SRC_SEL_MASK (3 << PLLSS_REF_SRC_SEL_SHIFT)
+
#define pll_readl(offset, p) readl_relaxed(p->clk_base + offset)
#define pll_readl_base(p) pll_readl(p->params->base_reg, p)
#define pll_readl_misc(p) pll_readl(p->params->misc_reg, p)
@@ -134,7 +180,7 @@
#define mask(w) ((1 << (w)) - 1)
#define divm_mask(p) mask(p->params->div_nmp->divm_width)
#define divn_mask(p) mask(p->params->div_nmp->divn_width)
-#define divp_mask(p) (p->flags & TEGRA_PLLU ? PLLU_POST_DIVP_MASK : \
+#define divp_mask(p) (p->params->flags & TEGRA_PLLU ? PLLU_POST_DIVP_MASK :\
mask(p->params->div_nmp->divp_width))
#define divm_max(p) (divm_mask(p))
@@ -154,10 +200,10 @@ static void clk_pll_enable_lock(struct tegra_clk_pll *pll)
{
u32 val;
- if (!(pll->flags & TEGRA_PLL_USE_LOCK))
+ if (!(pll->params->flags & TEGRA_PLL_USE_LOCK))
return;
- if (!(pll->flags & TEGRA_PLL_HAS_LOCK_ENABLE))
+ if (!(pll->params->flags & TEGRA_PLL_HAS_LOCK_ENABLE))
return;
val = pll_readl_misc(pll);
@@ -171,13 +217,13 @@ static int clk_pll_wait_for_lock(struct tegra_clk_pll *pll)
u32 val, lock_mask;
void __iomem *lock_addr;
- if (!(pll->flags & TEGRA_PLL_USE_LOCK)) {
+ if (!(pll->params->flags & TEGRA_PLL_USE_LOCK)) {
udelay(pll->params->lock_delay);
return 0;
}
lock_addr = pll->clk_base;
- if (pll->flags & TEGRA_PLL_LOCK_MISC)
+ if (pll->params->flags & TEGRA_PLL_LOCK_MISC)
lock_addr += pll->params->misc_reg;
else
lock_addr += pll->params->base_reg;
@@ -204,7 +250,7 @@ static int clk_pll_is_enabled(struct clk_hw *hw)
struct tegra_clk_pll *pll = to_clk_pll(hw);
u32 val;
- if (pll->flags & TEGRA_PLLM) {
+ if (pll->params->flags & TEGRA_PLLM) {
val = readl_relaxed(pll->pmc + PMC_PLLP_WB0_OVERRIDE);
if (val & PMC_PLLP_WB0_OVERRIDE_PLLM_OVERRIDE)
return val & PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE ? 1 : 0;
@@ -223,12 +269,12 @@ static void _clk_pll_enable(struct clk_hw *hw)
clk_pll_enable_lock(pll);
val = pll_readl_base(pll);
- if (pll->flags & TEGRA_PLL_BYPASS)
+ if (pll->params->flags & TEGRA_PLL_BYPASS)
val &= ~PLL_BASE_BYPASS;
val |= PLL_BASE_ENABLE;
pll_writel_base(val, pll);
- if (pll->flags & TEGRA_PLLM) {
+ if (pll->params->flags & TEGRA_PLLM) {
val = readl_relaxed(pll->pmc + PMC_PLLP_WB0_OVERRIDE);
val |= PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE;
writel_relaxed(val, pll->pmc + PMC_PLLP_WB0_OVERRIDE);
@@ -241,12 +287,12 @@ static void _clk_pll_disable(struct clk_hw *hw)
u32 val;
val = pll_readl_base(pll);
- if (pll->flags & TEGRA_PLL_BYPASS)
+ if (pll->params->flags & TEGRA_PLL_BYPASS)
val &= ~PLL_BASE_BYPASS;
val &= ~PLL_BASE_ENABLE;
pll_writel_base(val, pll);
- if (pll->flags & TEGRA_PLLM) {
+ if (pll->params->flags & TEGRA_PLLM) {
val = readl_relaxed(pll->pmc + PMC_PLLP_WB0_OVERRIDE);
val &= ~PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE;
writel_relaxed(val, pll->pmc + PMC_PLLP_WB0_OVERRIDE);
@@ -326,7 +372,7 @@ static int _get_table_rate(struct clk_hw *hw,
struct tegra_clk_pll *pll = to_clk_pll(hw);
struct tegra_clk_pll_freq_table *sel;
- for (sel = pll->freq_table; sel->input_rate != 0; sel++)
+ for (sel = pll->params->freq_table; sel->input_rate != 0; sel++)
if (sel->input_rate == parent_rate &&
sel->output_rate == rate)
break;
@@ -389,12 +435,11 @@ static int _calc_rate(struct clk_hw *hw, struct tegra_clk_pll_freq_table *cfg,
if (cfg->m > divm_max(pll) || cfg->n > divn_max(pll) ||
(1 << p_div) > divp_max(pll)
|| cfg->output_rate > pll->params->vco_max) {
- pr_err("%s: Failed to set %s rate %lu\n",
- __func__, __clk_get_name(hw->clk), rate);
- WARN_ON(1);
return -EINVAL;
}
+ cfg->output_rate >>= p_div;
+
if (pll->params->pdiv_tohw) {
ret = _p_div_to_hw(hw, 1 << p_div);
if (ret < 0)
@@ -414,7 +459,7 @@ static void _update_pll_mnp(struct tegra_clk_pll *pll,
struct tegra_clk_pll_params *params = pll->params;
struct div_nmp *div_nmp = params->div_nmp;
- if ((pll->flags & TEGRA_PLLM) &&
+ if ((params->flags & TEGRA_PLLM) &&
(pll_override_readl(PMC_PLLP_WB0_OVERRIDE, pll) &
PMC_PLLP_WB0_OVERRIDE_PLLM_OVERRIDE)) {
val = pll_override_readl(params->pmc_divp_reg, pll);
@@ -450,7 +495,7 @@ static void _get_pll_mnp(struct tegra_clk_pll *pll,
struct tegra_clk_pll_params *params = pll->params;
struct div_nmp *div_nmp = params->div_nmp;
- if ((pll->flags & TEGRA_PLLM) &&
+ if ((params->flags & TEGRA_PLLM) &&
(pll_override_readl(PMC_PLLP_WB0_OVERRIDE, pll) &
PMC_PLLP_WB0_OVERRIDE_PLLM_OVERRIDE)) {
val = pll_override_readl(params->pmc_divp_reg, pll);
@@ -479,11 +524,11 @@ static void _update_pll_cpcon(struct tegra_clk_pll *pll,
val &= ~(PLL_MISC_CPCON_MASK << PLL_MISC_CPCON_SHIFT);
val |= cfg->cpcon << PLL_MISC_CPCON_SHIFT;
- if (pll->flags & TEGRA_PLL_SET_LFCON) {
+ if (pll->params->flags & TEGRA_PLL_SET_LFCON) {
val &= ~(PLL_MISC_LFCON_MASK << PLL_MISC_LFCON_SHIFT);
if (cfg->n >= PLLDU_LFCON_SET_DIVN)
val |= 1 << PLL_MISC_LFCON_SHIFT;
- } else if (pll->flags & TEGRA_PLL_SET_DCCON) {
+ } else if (pll->params->flags & TEGRA_PLL_SET_DCCON) {
val &= ~(1 << PLL_MISC_DCCON_SHIFT);
if (rate >= (pll->params->vco_max >> 1))
val |= 1 << PLL_MISC_DCCON_SHIFT;
@@ -505,7 +550,7 @@ static int _program_pll(struct clk_hw *hw, struct tegra_clk_pll_freq_table *cfg,
_update_pll_mnp(pll, cfg);
- if (pll->flags & TEGRA_PLL_HAS_CPCON)
+ if (pll->params->flags & TEGRA_PLL_HAS_CPCON)
_update_pll_cpcon(pll, cfg, rate);
if (state) {
@@ -524,11 +569,11 @@ static int clk_pll_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long flags = 0;
int ret = 0;
- if (pll->flags & TEGRA_PLL_FIXED) {
- if (rate != pll->fixed_rate) {
+ if (pll->params->flags & TEGRA_PLL_FIXED) {
+ if (rate != pll->params->fixed_rate) {
pr_err("%s: Can not change %s fixed rate %lu to %lu\n",
__func__, __clk_get_name(hw->clk),
- pll->fixed_rate, rate);
+ pll->params->fixed_rate, rate);
return -EINVAL;
}
return 0;
@@ -536,6 +581,8 @@ static int clk_pll_set_rate(struct clk_hw *hw, unsigned long rate,
if (_get_table_rate(hw, &cfg, rate, parent_rate) &&
_calc_rate(hw, &cfg, rate, parent_rate)) {
+ pr_err("%s: Failed to set %s rate %lu\n", __func__,
+ __clk_get_name(hw->clk), rate);
WARN_ON(1);
return -EINVAL;
}
@@ -559,18 +606,16 @@ static long clk_pll_round_rate(struct clk_hw *hw, unsigned long rate,
struct tegra_clk_pll *pll = to_clk_pll(hw);
struct tegra_clk_pll_freq_table cfg;
- if (pll->flags & TEGRA_PLL_FIXED)
- return pll->fixed_rate;
+ if (pll->params->flags & TEGRA_PLL_FIXED)
+ return pll->params->fixed_rate;
/* PLLM is used for memory; we do not change rate */
- if (pll->flags & TEGRA_PLLM)
+ if (pll->params->flags & TEGRA_PLLM)
return __clk_get_rate(hw->clk);
if (_get_table_rate(hw, &cfg, rate, *prate) &&
- _calc_rate(hw, &cfg, rate, *prate)) {
- WARN_ON(1);
+ _calc_rate(hw, &cfg, rate, *prate))
return -EINVAL;
- }
return cfg.output_rate;
}
@@ -586,17 +631,19 @@ static unsigned long clk_pll_recalc_rate(struct clk_hw *hw,
val = pll_readl_base(pll);
- if ((pll->flags & TEGRA_PLL_BYPASS) && (val & PLL_BASE_BYPASS))
+ if ((pll->params->flags & TEGRA_PLL_BYPASS) && (val & PLL_BASE_BYPASS))
return parent_rate;
- if ((pll->flags & TEGRA_PLL_FIXED) && !(val & PLL_BASE_OVERRIDE)) {
+ if ((pll->params->flags & TEGRA_PLL_FIXED) &&
+ !(val & PLL_BASE_OVERRIDE)) {
struct tegra_clk_pll_freq_table sel;
- if (_get_table_rate(hw, &sel, pll->fixed_rate, parent_rate)) {
+ if (_get_table_rate(hw, &sel, pll->params->fixed_rate,
+ parent_rate)) {
pr_err("Clock %s has unknown fixed frequency\n",
__clk_get_name(hw->clk));
BUG();
}
- return pll->fixed_rate;
+ return pll->params->fixed_rate;
}
_get_pll_mnp(pll, &cfg);
@@ -664,7 +711,7 @@ static int clk_plle_enable(struct clk_hw *hw)
u32 val;
int err;
- if (_get_table_rate(hw, &sel, pll->fixed_rate, input_rate))
+ if (_get_table_rate(hw, &sel, pll->params->fixed_rate, input_rate))
return -EINVAL;
clk_pll_disable(hw);
@@ -680,7 +727,7 @@ static int clk_plle_enable(struct clk_hw *hw)
return err;
}
- if (pll->flags & TEGRA_PLLE_CONFIGURE) {
+ if (pll->params->flags & TEGRA_PLLE_CONFIGURE) {
/* configure dividers */
val = pll_readl_base(pll);
val &= ~(divm_mask(pll) | divn_mask(pll) | divp_mask(pll));
@@ -744,7 +791,7 @@ const struct clk_ops tegra_clk_plle_ops = {
.enable = clk_plle_enable,
};
-#ifdef CONFIG_ARCH_TEGRA_114_SOC
+#if defined(CONFIG_ARCH_TEGRA_114_SOC) || defined(CONFIG_ARCH_TEGRA_124_SOC)
static int _pll_fixed_mdiv(struct tegra_clk_pll_params *pll_params,
unsigned long parent_rate)
@@ -755,6 +802,48 @@ static int _pll_fixed_mdiv(struct tegra_clk_pll_params *pll_params,
return 1;
}
+static unsigned long _clip_vco_min(unsigned long vco_min,
+ unsigned long parent_rate)
+{
+ return DIV_ROUND_UP(vco_min, parent_rate) * parent_rate;
+}
+
+static int _setup_dynamic_ramp(struct tegra_clk_pll_params *pll_params,
+ void __iomem *clk_base,
+ unsigned long parent_rate)
+{
+ u32 val;
+ u32 step_a, step_b;
+
+ switch (parent_rate) {
+ case 12000000:
+ case 13000000:
+ case 26000000:
+ step_a = 0x2B;
+ step_b = 0x0B;
+ break;
+ case 16800000:
+ step_a = 0x1A;
+ step_b = 0x09;
+ break;
+ case 19200000:
+ step_a = 0x12;
+ step_b = 0x08;
+ break;
+ default:
+ pr_err("%s: Unexpected reference rate %lu\n",
+ __func__, parent_rate);
+ WARN_ON(1);
+ return -EINVAL;
+ }
+
+ val = step_a << pll_params->stepa_shift;
+ val |= step_b << pll_params->stepb_shift;
+ writel_relaxed(val, clk_base + pll_params->dyn_ramp_reg);
+
+ return 0;
+}
+
static int clk_pll_iddq_enable(struct clk_hw *hw)
{
struct tegra_clk_pll *pll = to_clk_pll(hw);
@@ -1173,7 +1262,7 @@ static int clk_plle_tegra114_enable(struct clk_hw *hw)
unsigned long flags = 0;
unsigned long input_rate = clk_get_rate(clk_get_parent(hw->clk));
- if (_get_table_rate(hw, &sel, pll->fixed_rate, input_rate))
+ if (_get_table_rate(hw, &sel, pll->params->fixed_rate, input_rate))
return -EINVAL;
if (pll->lock)
@@ -1217,6 +1306,18 @@ static int clk_plle_tegra114_enable(struct clk_hw *hw)
if (ret < 0)
goto out;
+ val = pll_readl(PLLE_SS_CTRL, pll);
+ val &= ~(PLLE_SS_CNTL_CENTER | PLLE_SS_CNTL_INVERT);
+ val &= ~PLLE_SS_COEFFICIENTS_MASK;
+ val |= PLLE_SS_COEFFICIENTS_VAL;
+ pll_writel(val, PLLE_SS_CTRL, pll);
+ val &= ~(PLLE_SS_CNTL_SSC_BYP | PLLE_SS_CNTL_BYPASS_SS);
+ pll_writel(val, PLLE_SS_CTRL, pll);
+ udelay(1);
+ val &= ~PLLE_SS_CNTL_INTERP_RESET;
+ pll_writel(val, PLLE_SS_CTRL, pll);
+ udelay(1);
+
/* TODO: enable hw control of xusb brick pll */
out:
@@ -1248,9 +1349,8 @@ static void clk_plle_tegra114_disable(struct clk_hw *hw)
#endif
static struct tegra_clk_pll *_tegra_init_pll(void __iomem *clk_base,
- void __iomem *pmc, unsigned long fixed_rate,
- struct tegra_clk_pll_params *pll_params, u32 pll_flags,
- struct tegra_clk_pll_freq_table *freq_table, spinlock_t *lock)
+ void __iomem *pmc, struct tegra_clk_pll_params *pll_params,
+ spinlock_t *lock)
{
struct tegra_clk_pll *pll;
@@ -1261,10 +1361,7 @@ static struct tegra_clk_pll *_tegra_init_pll(void __iomem *clk_base,
pll->clk_base = clk_base;
pll->pmc = pmc;
- pll->freq_table = freq_table;
pll->params = pll_params;
- pll->fixed_rate = fixed_rate;
- pll->flags = pll_flags;
pll->lock = lock;
if (!pll_params->div_nmp)
@@ -1293,17 +1390,15 @@ static struct clk *_tegra_clk_register_pll(struct tegra_clk_pll *pll,
struct clk *tegra_clk_register_pll(const char *name, const char *parent_name,
void __iomem *clk_base, void __iomem *pmc,
- unsigned long flags, unsigned long fixed_rate,
- struct tegra_clk_pll_params *pll_params, u32 pll_flags,
- struct tegra_clk_pll_freq_table *freq_table, spinlock_t *lock)
+ unsigned long flags, struct tegra_clk_pll_params *pll_params,
+ spinlock_t *lock)
{
struct tegra_clk_pll *pll;
struct clk *clk;
- pll_flags |= TEGRA_PLL_BYPASS;
- pll_flags |= TEGRA_PLL_HAS_LOCK_ENABLE;
- pll = _tegra_init_pll(clk_base, pmc, fixed_rate, pll_params, pll_flags,
- freq_table, lock);
+ pll_params->flags |= TEGRA_PLL_BYPASS;
+ pll_params->flags |= TEGRA_PLL_HAS_LOCK_ENABLE;
+ pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
if (IS_ERR(pll))
return ERR_CAST(pll);
@@ -1317,17 +1412,15 @@ struct clk *tegra_clk_register_pll(const char *name, const char *parent_name,
struct clk *tegra_clk_register_plle(const char *name, const char *parent_name,
void __iomem *clk_base, void __iomem *pmc,
- unsigned long flags, unsigned long fixed_rate,
- struct tegra_clk_pll_params *pll_params, u32 pll_flags,
- struct tegra_clk_pll_freq_table *freq_table, spinlock_t *lock)
+ unsigned long flags, struct tegra_clk_pll_params *pll_params,
+ spinlock_t *lock)
{
struct tegra_clk_pll *pll;
struct clk *clk;
- pll_flags |= TEGRA_PLL_LOCK_MISC | TEGRA_PLL_BYPASS;
- pll_flags |= TEGRA_PLL_HAS_LOCK_ENABLE;
- pll = _tegra_init_pll(clk_base, pmc, fixed_rate, pll_params, pll_flags,
- freq_table, lock);
+ pll_params->flags |= TEGRA_PLL_LOCK_MISC | TEGRA_PLL_BYPASS;
+ pll_params->flags |= TEGRA_PLL_HAS_LOCK_ENABLE;
+ pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
if (IS_ERR(pll))
return ERR_CAST(pll);
@@ -1339,7 +1432,7 @@ struct clk *tegra_clk_register_plle(const char *name, const char *parent_name,
return clk;
}
-#ifdef CONFIG_ARCH_TEGRA_114_SOC
+#if defined(CONFIG_ARCH_TEGRA_114_SOC) || defined(CONFIG_ARCH_TEGRA_124_SOC)
const struct clk_ops tegra_clk_pllxc_ops = {
.is_enabled = clk_pll_is_enabled,
.enable = clk_pll_iddq_enable,
@@ -1386,21 +1479,46 @@ const struct clk_ops tegra_clk_plle_tegra114_ops = {
struct clk *tegra_clk_register_pllxc(const char *name, const char *parent_name,
void __iomem *clk_base, void __iomem *pmc,
- unsigned long flags, unsigned long fixed_rate,
+ unsigned long flags,
struct tegra_clk_pll_params *pll_params,
- u32 pll_flags,
- struct tegra_clk_pll_freq_table *freq_table,
spinlock_t *lock)
{
struct tegra_clk_pll *pll;
- struct clk *clk;
+ struct clk *clk, *parent;
+ unsigned long parent_rate;
+ int err;
+ u32 val, val_iddq;
+
+ parent = __clk_lookup(parent_name);
+ if (!parent) {
+ WARN(1, "parent clk %s of %s must be registered first\n",
+ name, parent_name);
+ return ERR_PTR(-EINVAL);
+ }
if (!pll_params->pdiv_tohw)
return ERR_PTR(-EINVAL);
- pll_flags |= TEGRA_PLL_HAS_LOCK_ENABLE;
- pll = _tegra_init_pll(clk_base, pmc, fixed_rate, pll_params, pll_flags,
- freq_table, lock);
+ parent_rate = __clk_get_rate(parent);
+
+ pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
+
+ err = _setup_dynamic_ramp(pll_params, clk_base, parent_rate);
+ if (err)
+ return ERR_PTR(err);
+
+ val = readl_relaxed(clk_base + pll_params->base_reg);
+ val_iddq = readl_relaxed(clk_base + pll_params->iddq_reg);
+
+ if (val & PLL_BASE_ENABLE)
+ WARN_ON(val_iddq & BIT(pll_params->iddq_bit_idx));
+ else {
+ val_iddq |= BIT(pll_params->iddq_bit_idx);
+ writel_relaxed(val_iddq, clk_base + pll_params->iddq_reg);
+ }
+
+ pll_params->flags |= TEGRA_PLL_HAS_LOCK_ENABLE;
+ pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
if (IS_ERR(pll))
return ERR_CAST(pll);
@@ -1414,19 +1532,19 @@ struct clk *tegra_clk_register_pllxc(const char *name, const char *parent_name,
struct clk *tegra_clk_register_pllre(const char *name, const char *parent_name,
void __iomem *clk_base, void __iomem *pmc,
- unsigned long flags, unsigned long fixed_rate,
+ unsigned long flags,
struct tegra_clk_pll_params *pll_params,
- u32 pll_flags,
- struct tegra_clk_pll_freq_table *freq_table,
spinlock_t *lock, unsigned long parent_rate)
{
u32 val;
struct tegra_clk_pll *pll;
struct clk *clk;
- pll_flags |= TEGRA_PLL_HAS_LOCK_ENABLE | TEGRA_PLL_LOCK_MISC;
- pll = _tegra_init_pll(clk_base, pmc, fixed_rate, pll_params, pll_flags,
- freq_table, lock);
+ pll_params->flags |= TEGRA_PLL_HAS_LOCK_ENABLE | TEGRA_PLL_LOCK_MISC;
+
+ pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
+
+ pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
if (IS_ERR(pll))
return ERR_CAST(pll);
@@ -1461,23 +1579,32 @@ struct clk *tegra_clk_register_pllre(const char *name, const char *parent_name,
struct clk *tegra_clk_register_pllm(const char *name, const char *parent_name,
void __iomem *clk_base, void __iomem *pmc,
- unsigned long flags, unsigned long fixed_rate,
+ unsigned long flags,
struct tegra_clk_pll_params *pll_params,
- u32 pll_flags,
- struct tegra_clk_pll_freq_table *freq_table,
spinlock_t *lock)
{
struct tegra_clk_pll *pll;
- struct clk *clk;
+ struct clk *clk, *parent;
+ unsigned long parent_rate;
if (!pll_params->pdiv_tohw)
return ERR_PTR(-EINVAL);
- pll_flags |= TEGRA_PLL_BYPASS;
- pll_flags |= TEGRA_PLL_HAS_LOCK_ENABLE;
- pll_flags |= TEGRA_PLLM;
- pll = _tegra_init_pll(clk_base, pmc, fixed_rate, pll_params, pll_flags,
- freq_table, lock);
+ parent = __clk_lookup(parent_name);
+ if (!parent) {
+ WARN(1, "parent clk %s of %s must be registered first\n",
+ name, parent_name);
+ return ERR_PTR(-EINVAL);
+ }
+
+ parent_rate = __clk_get_rate(parent);
+
+ pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
+
+ pll_params->flags |= TEGRA_PLL_BYPASS;
+ pll_params->flags |= TEGRA_PLL_HAS_LOCK_ENABLE;
+ pll_params->flags |= TEGRA_PLLM;
+ pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
if (IS_ERR(pll))
return ERR_CAST(pll);
@@ -1491,10 +1618,8 @@ struct clk *tegra_clk_register_pllm(const char *name, const char *parent_name,
struct clk *tegra_clk_register_pllc(const char *name, const char *parent_name,
void __iomem *clk_base, void __iomem *pmc,
- unsigned long flags, unsigned long fixed_rate,
+ unsigned long flags,
struct tegra_clk_pll_params *pll_params,
- u32 pll_flags,
- struct tegra_clk_pll_freq_table *freq_table,
spinlock_t *lock)
{
struct clk *parent, *clk;
@@ -1507,20 +1632,21 @@ struct clk *tegra_clk_register_pllc(const char *name, const char *parent_name,
return ERR_PTR(-EINVAL);
parent = __clk_lookup(parent_name);
- if (IS_ERR(parent)) {
+ if (!parent) {
WARN(1, "parent clk %s of %s must be registered first\n",
name, parent_name);
return ERR_PTR(-EINVAL);
}
- pll_flags |= TEGRA_PLL_BYPASS;
- pll = _tegra_init_pll(clk_base, pmc, fixed_rate, pll_params, pll_flags,
- freq_table, lock);
+ parent_rate = __clk_get_rate(parent);
+
+ pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
+
+ pll_params->flags |= TEGRA_PLL_BYPASS;
+ pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
if (IS_ERR(pll))
return ERR_CAST(pll);
- parent_rate = __clk_get_rate(parent);
-
/*
* Most of PLLC register fields are shadowed, and can not be read
* directly from PLL h/w. Hence, actual PLLC boot state is unknown.
@@ -1567,17 +1693,15 @@ struct clk *tegra_clk_register_pllc(const char *name, const char *parent_name,
struct clk *tegra_clk_register_plle_tegra114(const char *name,
const char *parent_name,
void __iomem *clk_base, unsigned long flags,
- unsigned long fixed_rate,
struct tegra_clk_pll_params *pll_params,
- struct tegra_clk_pll_freq_table *freq_table,
spinlock_t *lock)
{
struct tegra_clk_pll *pll;
struct clk *clk;
u32 val, val_aux;
- pll = _tegra_init_pll(clk_base, NULL, fixed_rate, pll_params,
- TEGRA_PLL_HAS_LOCK_ENABLE, freq_table, lock);
+ pll_params->flags |= TEGRA_PLL_HAS_LOCK_ENABLE;
+ pll = _tegra_init_pll(clk_base, NULL, pll_params, lock);
if (IS_ERR(pll))
return ERR_CAST(pll);
@@ -1587,11 +1711,13 @@ struct clk *tegra_clk_register_plle_tegra114(const char *name,
val_aux = pll_readl(pll_params->aux_reg, pll);
if (val & PLL_BASE_ENABLE) {
- if (!(val_aux & PLLE_AUX_PLLRE_SEL))
+ if ((val_aux & PLLE_AUX_PLLRE_SEL) ||
+ (val_aux & PLLE_AUX_PLLP_SEL))
WARN(1, "pll_e enabled with unsupported parent %s\n",
- (val & PLLE_AUX_PLLP_SEL) ? "pllp_out0" : "pll_ref");
+ (val_aux & PLLE_AUX_PLLP_SEL) ? "pllp_out0" :
+ "pll_re_vco");
} else {
- val_aux |= PLLE_AUX_PLLRE_SEL;
+ val_aux &= ~(PLLE_AUX_PLLRE_SEL | PLLE_AUX_PLLP_SEL);
pll_writel(val, pll_params->aux_reg, pll);
}
@@ -1603,3 +1729,92 @@ struct clk *tegra_clk_register_plle_tegra114(const char *name,
return clk;
}
#endif
+
+#ifdef CONFIG_ARCH_TEGRA_124_SOC
+const struct clk_ops tegra_clk_pllss_ops = {
+ .is_enabled = clk_pll_is_enabled,
+ .enable = clk_pll_iddq_enable,
+ .disable = clk_pll_iddq_disable,
+ .recalc_rate = clk_pll_recalc_rate,
+ .round_rate = clk_pll_ramp_round_rate,
+ .set_rate = clk_pllxc_set_rate,
+};
+
+struct clk *tegra_clk_register_pllss(const char *name, const char *parent_name,
+ void __iomem *clk_base, unsigned long flags,
+ struct tegra_clk_pll_params *pll_params,
+ spinlock_t *lock)
+{
+ struct tegra_clk_pll *pll;
+ struct clk *clk, *parent;
+ struct tegra_clk_pll_freq_table cfg;
+ unsigned long parent_rate;
+ u32 val;
+ int i;
+
+ if (!pll_params->div_nmp)
+ return ERR_PTR(-EINVAL);
+
+ parent = __clk_lookup(parent_name);
+ if (!parent) {
+ WARN(1, "parent clk %s of %s must be registered first\n",
+ name, parent_name);
+ return ERR_PTR(-EINVAL);
+ }
+
+ pll_params->flags = TEGRA_PLL_HAS_LOCK_ENABLE | TEGRA_PLL_USE_LOCK;
+ pll = _tegra_init_pll(clk_base, NULL, pll_params, lock);
+ if (IS_ERR(pll))
+ return ERR_CAST(pll);
+
+ val = pll_readl_base(pll);
+ val &= ~PLLSS_REF_SRC_SEL_MASK;
+ pll_writel_base(val, pll);
+
+ parent_rate = __clk_get_rate(parent);
+
+ pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
+
+ /* initialize PLL to minimum rate */
+
+ cfg.m = _pll_fixed_mdiv(pll_params, parent_rate);
+ cfg.n = cfg.m * pll_params->vco_min / parent_rate;
+
+ for (i = 0; pll_params->pdiv_tohw[i].pdiv; i++)
+ ;
+ if (!i) {
+ kfree(pll);
+ return ERR_PTR(-EINVAL);
+ }
+
+ cfg.p = pll_params->pdiv_tohw[i-1].hw_val;
+
+ _update_pll_mnp(pll, &cfg);
+
+ pll_writel_misc(PLLSS_MISC_DEFAULT, pll);
+ pll_writel(PLLSS_CFG_DEFAULT, pll_params->ext_misc_reg[0], pll);
+ pll_writel(PLLSS_CTRL1_DEFAULT, pll_params->ext_misc_reg[1], pll);
+ pll_writel(PLLSS_CTRL1_DEFAULT, pll_params->ext_misc_reg[2], pll);
+
+ val = pll_readl_base(pll);
+ if (val & PLL_BASE_ENABLE) {
+ if (val & BIT(pll_params->iddq_bit_idx)) {
+ WARN(1, "%s is on but IDDQ set\n", name);
+ kfree(pll);
+ return ERR_PTR(-EINVAL);
+ }
+ } else
+ val |= BIT(pll_params->iddq_bit_idx);
+
+ val &= ~PLLSS_LOCK_OVERRIDE;
+ pll_writel_base(val, pll);
+
+ clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
+ &tegra_clk_pllss_ops);
+
+ if (IS_ERR(clk))
+ kfree(pll);
+
+ return clk;
+}
+#endif