diff options
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/ingenic/cgu.c | 16 | ||||
| -rw-r--r-- | drivers/clk/ingenic/cgu.h | 4 | ||||
| -rw-r--r-- | drivers/clk/ingenic/jz4725b-cgu.c | 4 | ||||
| -rw-r--r-- | drivers/clk/ingenic/jz4740-cgu.c | 4 | ||||
| -rw-r--r-- | drivers/clk/ingenic/jz4770-cgu.c | 8 | ||||
| -rw-r--r-- | drivers/clk/ingenic/jz4780-cgu.c | 3 | ||||
| -rw-r--r-- | drivers/clk/ingenic/x1000-cgu.c | 6 |
7 files changed, 41 insertions, 4 deletions
diff --git a/drivers/clk/ingenic/cgu.c b/drivers/clk/ingenic/cgu.c index ab1302ad1450..d7981b670221 100644 --- a/drivers/clk/ingenic/cgu.c +++ b/drivers/clk/ingenic/cgu.c @@ -90,6 +90,9 @@ ingenic_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) n += pll_info->n_offset; od_enc = ctl >> pll_info->od_shift; od_enc &= GENMASK(pll_info->od_bits - 1, 0); + + ctl = readl(cgu->base + pll_info->bypass_reg); + bypass = !pll_info->no_bypass_bit && !!(ctl & BIT(pll_info->bypass_bit)); @@ -103,7 +106,8 @@ ingenic_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) BUG_ON(od == pll_info->od_max); od++; - return div_u64((u64)parent_rate * m, n * od); + return div_u64((u64)parent_rate * m * pll_info->rate_multiplier, + n * od); } static unsigned long @@ -136,7 +140,8 @@ ingenic_pll_calc(const struct ingenic_cgu_clk_info *clk_info, if (pod) *pod = od; - return div_u64((u64)parent_rate * m, n * od); + return div_u64((u64)parent_rate * m * pll_info->rate_multiplier, + n * od); } static inline const struct ingenic_cgu_clk_info *to_clk_info( @@ -209,9 +214,14 @@ static int ingenic_pll_enable(struct clk_hw *hw) u32 ctl; spin_lock_irqsave(&cgu->lock, flags); - ctl = readl(cgu->base + pll_info->reg); + ctl = readl(cgu->base + pll_info->bypass_reg); ctl &= ~BIT(pll_info->bypass_bit); + + writel(ctl, cgu->base + pll_info->bypass_reg); + + ctl = readl(cgu->base + pll_info->reg); + ctl |= BIT(pll_info->enable_bit); writel(ctl, cgu->base + pll_info->reg); diff --git a/drivers/clk/ingenic/cgu.h b/drivers/clk/ingenic/cgu.h index 0dc8004079ee..2c75ef4a36f5 100644 --- a/drivers/clk/ingenic/cgu.h +++ b/drivers/clk/ingenic/cgu.h @@ -17,6 +17,7 @@ /** * struct ingenic_cgu_pll_info - information about a PLL * @reg: the offset of the PLL's control register within the CGU + * @rate_multiplier: the multiplier needed by pll rate calculation * @m_shift: the number of bits to shift the multiplier value by (ie. the * index of the lowest bit of the multiplier value in the PLL's * control register) @@ -37,6 +38,7 @@ * @od_encoding: a pointer to an array mapping post-VCO divider values to * their encoded values in the PLL control register, or -1 for * unsupported values + * @bypass_reg: the offset of the bypass control register within the CGU * @bypass_bit: the index of the bypass bit in the PLL control register * @enable_bit: the index of the enable bit in the PLL control register * @stable_bit: the index of the stable bit in the PLL control register @@ -44,10 +46,12 @@ */ struct ingenic_cgu_pll_info { unsigned reg; + unsigned rate_multiplier; const s8 *od_encoding; u8 m_shift, m_bits, m_offset; u8 n_shift, n_bits, n_offset; u8 od_shift, od_bits, od_max; + unsigned bypass_reg; u8 bypass_bit; u8 enable_bit; u8 stable_bit; diff --git a/drivers/clk/ingenic/jz4725b-cgu.c b/drivers/clk/ingenic/jz4725b-cgu.c index a3b4635f6278..8c38e72d14a7 100644 --- a/drivers/clk/ingenic/jz4725b-cgu.c +++ b/drivers/clk/ingenic/jz4725b-cgu.c @@ -9,7 +9,9 @@ #include <linux/clk-provider.h> #include <linux/delay.h> #include <linux/of.h> + #include <dt-bindings/clock/jz4725b-cgu.h> + #include "cgu.h" #include "pm.h" @@ -54,6 +56,7 @@ static const struct ingenic_cgu_clk_info jz4725b_cgu_clocks[] = { .parents = { JZ4725B_CLK_EXT, -1, -1, -1 }, .pll = { .reg = CGU_REG_CPPCR, + .rate_multiplier = 1, .m_shift = 23, .m_bits = 9, .m_offset = 2, @@ -65,6 +68,7 @@ static const struct ingenic_cgu_clk_info jz4725b_cgu_clocks[] = { .od_max = 4, .od_encoding = pll_od_encoding, .stable_bit = 10, + .bypass_reg = CGU_REG_CPPCR, .bypass_bit = 9, .enable_bit = 8, }, diff --git a/drivers/clk/ingenic/jz4740-cgu.c b/drivers/clk/ingenic/jz4740-cgu.c index 4f0e92c877d6..c0ac9196a581 100644 --- a/drivers/clk/ingenic/jz4740-cgu.c +++ b/drivers/clk/ingenic/jz4740-cgu.c @@ -10,7 +10,9 @@ #include <linux/delay.h> #include <linux/io.h> #include <linux/of.h> + #include <dt-bindings/clock/jz4740-cgu.h> + #include "cgu.h" #include "pm.h" @@ -69,6 +71,7 @@ static const struct ingenic_cgu_clk_info jz4740_cgu_clocks[] = { .parents = { JZ4740_CLK_EXT, -1, -1, -1 }, .pll = { .reg = CGU_REG_CPPCR, + .rate_multiplier = 1, .m_shift = 23, .m_bits = 9, .m_offset = 2, @@ -80,6 +83,7 @@ static const struct ingenic_cgu_clk_info jz4740_cgu_clocks[] = { .od_max = 4, .od_encoding = pll_od_encoding, .stable_bit = 10, + .bypass_reg = CGU_REG_CPPCR, .bypass_bit = 9, .enable_bit = 8, }, diff --git a/drivers/clk/ingenic/jz4770-cgu.c b/drivers/clk/ingenic/jz4770-cgu.c index c051ecba5cf8..9ea4490ecb7f 100644 --- a/drivers/clk/ingenic/jz4770-cgu.c +++ b/drivers/clk/ingenic/jz4770-cgu.c @@ -9,7 +9,9 @@ #include <linux/delay.h> #include <linux/io.h> #include <linux/of.h> + #include <dt-bindings/clock/jz4770-cgu.h> + #include "cgu.h" #include "pm.h" @@ -102,6 +104,7 @@ static const struct ingenic_cgu_clk_info jz4770_cgu_clocks[] = { .parents = { JZ4770_CLK_EXT }, .pll = { .reg = CGU_REG_CPPCR0, + .rate_multiplier = 1, .m_shift = 24, .m_bits = 7, .m_offset = 1, @@ -112,6 +115,7 @@ static const struct ingenic_cgu_clk_info jz4770_cgu_clocks[] = { .od_bits = 2, .od_max = 8, .od_encoding = pll_od_encoding, + .bypass_reg = CGU_REG_CPPCR0, .bypass_bit = 9, .enable_bit = 8, .stable_bit = 10, @@ -124,6 +128,7 @@ static const struct ingenic_cgu_clk_info jz4770_cgu_clocks[] = { .parents = { JZ4770_CLK_EXT }, .pll = { .reg = CGU_REG_CPPCR1, + .rate_multiplier = 1, .m_shift = 24, .m_bits = 7, .m_offset = 1, @@ -134,9 +139,10 @@ static const struct ingenic_cgu_clk_info jz4770_cgu_clocks[] = { .od_bits = 2, .od_max = 8, .od_encoding = pll_od_encoding, + .bypass_reg = CGU_REG_CPPCR1, + .no_bypass_bit = true, .enable_bit = 7, .stable_bit = 6, - .no_bypass_bit = true, }, }, diff --git a/drivers/clk/ingenic/jz4780-cgu.c b/drivers/clk/ingenic/jz4780-cgu.c index c758f1643067..6c5b8029cc8a 100644 --- a/drivers/clk/ingenic/jz4780-cgu.c +++ b/drivers/clk/ingenic/jz4780-cgu.c @@ -13,6 +13,7 @@ #include <linux/of.h> #include <dt-bindings/clock/jz4780-cgu.h> + #include "cgu.h" #include "pm.h" @@ -266,6 +267,7 @@ static const struct ingenic_cgu_clk_info jz4780_cgu_clocks[] = { #define DEF_PLL(name) { \ .reg = CGU_REG_ ## name, \ + .rate_multiplier = 1, \ .m_shift = 19, \ .m_bits = 13, \ .m_offset = 1, \ @@ -277,6 +279,7 @@ static const struct ingenic_cgu_clk_info jz4780_cgu_clocks[] = { .od_max = 16, \ .od_encoding = pll_od_encoding, \ .stable_bit = 6, \ + .bypass_reg = CGU_REG_ ## name, \ .bypass_bit = 1, \ .enable_bit = 0, \ } diff --git a/drivers/clk/ingenic/x1000-cgu.c b/drivers/clk/ingenic/x1000-cgu.c index b22d87b3f555..c33934d8ac14 100644 --- a/drivers/clk/ingenic/x1000-cgu.c +++ b/drivers/clk/ingenic/x1000-cgu.c @@ -7,7 +7,9 @@ #include <linux/clk-provider.h> #include <linux/delay.h> #include <linux/of.h> + #include <dt-bindings/clock/x1000-cgu.h> + #include "cgu.h" #include "pm.h" @@ -58,6 +60,7 @@ static const struct ingenic_cgu_clk_info x1000_cgu_clocks[] = { .parents = { X1000_CLK_EXCLK, -1, -1, -1 }, .pll = { .reg = CGU_REG_APLL, + .rate_multiplier = 1, .m_shift = 24, .m_bits = 7, .m_offset = 1, @@ -68,6 +71,7 @@ static const struct ingenic_cgu_clk_info x1000_cgu_clocks[] = { .od_bits = 2, .od_max = 8, .od_encoding = pll_od_encoding, + .bypass_reg = CGU_REG_APLL, .bypass_bit = 9, .enable_bit = 8, .stable_bit = 10, @@ -79,6 +83,7 @@ static const struct ingenic_cgu_clk_info x1000_cgu_clocks[] = { .parents = { X1000_CLK_EXCLK, -1, -1, -1 }, .pll = { .reg = CGU_REG_MPLL, + .rate_multiplier = 1, .m_shift = 24, .m_bits = 7, .m_offset = 1, @@ -89,6 +94,7 @@ static const struct ingenic_cgu_clk_info x1000_cgu_clocks[] = { .od_bits = 2, .od_max = 8, .od_encoding = pll_od_encoding, + .bypass_reg = CGU_REG_MPLL, .bypass_bit = 6, .enable_bit = 7, .stable_bit = 0, |