[RFC PATCH 01/15] clock: exynos: fixup endian in pll clk
Matthew Leach
matthew at mattleach.net
Wed Jun 8 11:30:56 PDT 2016
Fix the clk endian access code to deal with kernels built for big endian
operation.
Signed-off-by: Matthew Leach <matthew at mattleach.net>
---
CC: Sylwester Nawrocki <s.nawrocki at samsung.com>
CC: Tomasz Figa <tomasz.figa at gmail.com>
CC: Michael Turquette <mturquette at baylibre.com>
CC: Stephen Boyd <sboyd at codeaurora.org>
CC: linux-samsung-soc at vger.kernel.org
CC: linux-clk at vger.kernel.org
CC: linux-kernel at vger.kernel.org
---
drivers/clk/samsung/clk-pll.c | 122 +++++++++++++++++++++---------------------
1 file changed, 61 insertions(+), 61 deletions(-)
diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c
index b7dd396..48139bd 100644
--- a/drivers/clk/samsung/clk-pll.c
+++ b/drivers/clk/samsung/clk-pll.c
@@ -79,7 +79,7 @@ static unsigned long samsung_pll2126_recalc_rate(struct clk_hw *hw,
u32 pll_con, mdiv, pdiv, sdiv;
u64 fvco = parent_rate;
- pll_con = __raw_readl(pll->con_reg);
+ pll_con = readl_relaxed(pll->con_reg);
mdiv = (pll_con >> PLL2126_MDIV_SHIFT) & PLL2126_MDIV_MASK;
pdiv = (pll_con >> PLL2126_PDIV_SHIFT) & PLL2126_PDIV_MASK;
sdiv = (pll_con >> PLL2126_SDIV_SHIFT) & PLL2126_SDIV_MASK;
@@ -112,7 +112,7 @@ static unsigned long samsung_pll3000_recalc_rate(struct clk_hw *hw,
u32 pll_con, mdiv, pdiv, sdiv;
u64 fvco = parent_rate;
- pll_con = __raw_readl(pll->con_reg);
+ pll_con = readl_relaxed(pll->con_reg);
mdiv = (pll_con >> PLL3000_MDIV_SHIFT) & PLL3000_MDIV_MASK;
pdiv = (pll_con >> PLL3000_PDIV_SHIFT) & PLL3000_PDIV_MASK;
sdiv = (pll_con >> PLL3000_SDIV_SHIFT) & PLL3000_SDIV_MASK;
@@ -149,7 +149,7 @@ static unsigned long samsung_pll35xx_recalc_rate(struct clk_hw *hw,
u32 mdiv, pdiv, sdiv, pll_con;
u64 fvco = parent_rate;
- pll_con = __raw_readl(pll->con_reg);
+ pll_con = readl_relaxed(pll->con_reg);
mdiv = (pll_con >> PLL35XX_MDIV_SHIFT) & PLL35XX_MDIV_MASK;
pdiv = (pll_con >> PLL35XX_PDIV_SHIFT) & PLL35XX_PDIV_MASK;
sdiv = (pll_con >> PLL35XX_SDIV_SHIFT) & PLL35XX_SDIV_MASK;
@@ -186,19 +186,19 @@ static int samsung_pll35xx_set_rate(struct clk_hw *hw, unsigned long drate,
return -EINVAL;
}
- tmp = __raw_readl(pll->con_reg);
+ tmp = readl_relaxed(pll->con_reg);
if (!(samsung_pll35xx_mp_change(rate, tmp))) {
/* If only s change, change just s value only*/
tmp &= ~(PLL35XX_SDIV_MASK << PLL35XX_SDIV_SHIFT);
tmp |= rate->sdiv << PLL35XX_SDIV_SHIFT;
- __raw_writel(tmp, pll->con_reg);
+ writel_relaxed(tmp, pll->con_reg);
return 0;
}
/* Set PLL lock time. */
- __raw_writel(rate->pdiv * PLL35XX_LOCK_FACTOR,
+ writel_relaxed(rate->pdiv * PLL35XX_LOCK_FACTOR,
pll->lock_reg);
/* Change PLL PMS values */
@@ -208,12 +208,12 @@ static int samsung_pll35xx_set_rate(struct clk_hw *hw, unsigned long drate,
tmp |= (rate->mdiv << PLL35XX_MDIV_SHIFT) |
(rate->pdiv << PLL35XX_PDIV_SHIFT) |
(rate->sdiv << PLL35XX_SDIV_SHIFT);
- __raw_writel(tmp, pll->con_reg);
+ writel_relaxed(tmp, pll->con_reg);
/* wait_lock_time */
do {
cpu_relax();
- tmp = __raw_readl(pll->con_reg);
+ tmp = readl_relaxed(pll->con_reg);
} while (!(tmp & (PLL35XX_LOCK_STAT_MASK
<< PLL35XX_LOCK_STAT_SHIFT)));
return 0;
@@ -253,8 +253,8 @@ static unsigned long samsung_pll36xx_recalc_rate(struct clk_hw *hw,
s16 kdiv;
u64 fvco = parent_rate;
- pll_con0 = __raw_readl(pll->con_reg);
- pll_con1 = __raw_readl(pll->con_reg + 4);
+ pll_con0 = readl_relaxed(pll->con_reg);
+ pll_con1 = readl_relaxed(pll->con_reg + 4);
mdiv = (pll_con0 >> PLL36XX_MDIV_SHIFT) & PLL36XX_MDIV_MASK;
pdiv = (pll_con0 >> PLL36XX_PDIV_SHIFT) & PLL36XX_PDIV_MASK;
sdiv = (pll_con0 >> PLL36XX_SDIV_SHIFT) & PLL36XX_SDIV_MASK;
@@ -294,20 +294,20 @@ static int samsung_pll36xx_set_rate(struct clk_hw *hw, unsigned long drate,
return -EINVAL;
}
- pll_con0 = __raw_readl(pll->con_reg);
- pll_con1 = __raw_readl(pll->con_reg + 4);
+ pll_con0 = readl_relaxed(pll->con_reg);
+ pll_con1 = readl_relaxed(pll->con_reg + 4);
if (!(samsung_pll36xx_mpk_change(rate, pll_con0, pll_con1))) {
/* If only s change, change just s value only*/
pll_con0 &= ~(PLL36XX_SDIV_MASK << PLL36XX_SDIV_SHIFT);
pll_con0 |= (rate->sdiv << PLL36XX_SDIV_SHIFT);
- __raw_writel(pll_con0, pll->con_reg);
+ writel_relaxed(pll_con0, pll->con_reg);
return 0;
}
/* Set PLL lock time. */
- __raw_writel(rate->pdiv * PLL36XX_LOCK_FACTOR, pll->lock_reg);
+ writel_relaxed(rate->pdiv * PLL36XX_LOCK_FACTOR, pll->lock_reg);
/* Change PLL PMS values */
pll_con0 &= ~((PLL36XX_MDIV_MASK << PLL36XX_MDIV_SHIFT) |
@@ -316,16 +316,16 @@ static int samsung_pll36xx_set_rate(struct clk_hw *hw, unsigned long drate,
pll_con0 |= (rate->mdiv << PLL36XX_MDIV_SHIFT) |
(rate->pdiv << PLL36XX_PDIV_SHIFT) |
(rate->sdiv << PLL36XX_SDIV_SHIFT);
- __raw_writel(pll_con0, pll->con_reg);
+ writel_relaxed(pll_con0, pll->con_reg);
pll_con1 &= ~(PLL36XX_KDIV_MASK << PLL36XX_KDIV_SHIFT);
pll_con1 |= rate->kdiv << PLL36XX_KDIV_SHIFT;
- __raw_writel(pll_con1, pll->con_reg + 4);
+ writel_relaxed(pll_con1, pll->con_reg + 4);
/* wait_lock_time */
do {
cpu_relax();
- tmp = __raw_readl(pll->con_reg);
+ tmp = readl_relaxed(pll->con_reg);
} while (!(tmp & (1 << PLL36XX_LOCK_STAT_SHIFT)));
return 0;
@@ -366,7 +366,7 @@ static unsigned long samsung_pll45xx_recalc_rate(struct clk_hw *hw,
u32 mdiv, pdiv, sdiv, pll_con;
u64 fvco = parent_rate;
- pll_con = __raw_readl(pll->con_reg);
+ pll_con = readl_relaxed(pll->con_reg);
mdiv = (pll_con >> PLL45XX_MDIV_SHIFT) & PLL45XX_MDIV_MASK;
pdiv = (pll_con >> PLL45XX_PDIV_SHIFT) & PLL45XX_PDIV_MASK;
sdiv = (pll_con >> PLL45XX_SDIV_SHIFT) & PLL45XX_SDIV_MASK;
@@ -409,14 +409,14 @@ static int samsung_pll45xx_set_rate(struct clk_hw *hw, unsigned long drate,
return -EINVAL;
}
- con0 = __raw_readl(pll->con_reg);
- con1 = __raw_readl(pll->con_reg + 0x4);
+ con0 = readl_relaxed(pll->con_reg);
+ con1 = readl_relaxed(pll->con_reg + 0x4);
if (!(samsung_pll45xx_mp_change(con0, con1, rate))) {
/* If only s change, change just s value only*/
con0 &= ~(PLL45XX_SDIV_MASK << PLL45XX_SDIV_SHIFT);
con0 |= rate->sdiv << PLL45XX_SDIV_SHIFT;
- __raw_writel(con0, pll->con_reg);
+ writel_relaxed(con0, pll->con_reg);
return 0;
}
@@ -430,29 +430,29 @@ static int samsung_pll45xx_set_rate(struct clk_hw *hw, unsigned long drate,
(rate->sdiv << PLL45XX_SDIV_SHIFT);
/* Set PLL AFC value. */
- con1 = __raw_readl(pll->con_reg + 0x4);
+ con1 = readl_relaxed(pll->con_reg + 0x4);
con1 &= ~(PLL45XX_AFC_MASK << PLL45XX_AFC_SHIFT);
con1 |= (rate->afc << PLL45XX_AFC_SHIFT);
/* Set PLL lock time. */
switch (pll->type) {
case pll_4502:
- __raw_writel(rate->pdiv * PLL4502_LOCK_FACTOR, pll->lock_reg);
+ writel_relaxed(rate->pdiv * PLL4502_LOCK_FACTOR, pll->lock_reg);
break;
case pll_4508:
- __raw_writel(rate->pdiv * PLL4508_LOCK_FACTOR, pll->lock_reg);
+ writel_relaxed(rate->pdiv * PLL4508_LOCK_FACTOR, pll->lock_reg);
break;
default:
break;
}
/* Set new configuration. */
- __raw_writel(con1, pll->con_reg + 0x4);
- __raw_writel(con0, pll->con_reg);
+ writel_relaxed(con1, pll->con_reg + 0x4);
+ writel_relaxed(con0, pll->con_reg);
/* Wait for locking. */
start = ktime_get();
- while (!(__raw_readl(pll->con_reg) & PLL45XX_LOCKED)) {
+ while (!(readl_relaxed(pll->con_reg) & PLL45XX_LOCKED)) {
ktime_t delta = ktime_sub(ktime_get(), start);
if (ktime_to_ms(delta) > PLL_TIMEOUT_MS) {
@@ -513,8 +513,8 @@ static unsigned long samsung_pll46xx_recalc_rate(struct clk_hw *hw,
u32 mdiv, pdiv, sdiv, kdiv, pll_con0, pll_con1, shift;
u64 fvco = parent_rate;
- pll_con0 = __raw_readl(pll->con_reg);
- pll_con1 = __raw_readl(pll->con_reg + 4);
+ pll_con0 = readl_relaxed(pll->con_reg);
+ pll_con1 = readl_relaxed(pll->con_reg + 4);
mdiv = (pll_con0 >> PLL46XX_MDIV_SHIFT) & ((pll->type == pll_1460x) ?
PLL1460X_MDIV_MASK : PLL46XX_MDIV_MASK);
pdiv = (pll_con0 >> PLL46XX_PDIV_SHIFT) & PLL46XX_PDIV_MASK;
@@ -560,14 +560,14 @@ static int samsung_pll46xx_set_rate(struct clk_hw *hw, unsigned long drate,
return -EINVAL;
}
- con0 = __raw_readl(pll->con_reg);
- con1 = __raw_readl(pll->con_reg + 0x4);
+ con0 = readl_relaxed(pll->con_reg);
+ con1 = readl_relaxed(pll->con_reg + 0x4);
if (!(samsung_pll46xx_mpk_change(con0, con1, rate))) {
/* If only s change, change just s value only*/
con0 &= ~(PLL46XX_SDIV_MASK << PLL46XX_SDIV_SHIFT);
con0 |= rate->sdiv << PLL46XX_SDIV_SHIFT;
- __raw_writel(con0, pll->con_reg);
+ writel_relaxed(con0, pll->con_reg);
return 0;
}
@@ -596,7 +596,7 @@ static int samsung_pll46xx_set_rate(struct clk_hw *hw, unsigned long drate,
(rate->sdiv << PLL46XX_SDIV_SHIFT);
/* Set PLL K, MFR and MRR values. */
- con1 = __raw_readl(pll->con_reg + 0x4);
+ con1 = readl_relaxed(pll->con_reg + 0x4);
con1 &= ~((PLL46XX_KDIV_MASK << PLL46XX_KDIV_SHIFT) |
(PLL46XX_MFR_MASK << PLL46XX_MFR_SHIFT) |
(PLL46XX_MRR_MASK << PLL46XX_MRR_SHIFT));
@@ -605,13 +605,13 @@ static int samsung_pll46xx_set_rate(struct clk_hw *hw, unsigned long drate,
(rate->mrr << PLL46XX_MRR_SHIFT);
/* Write configuration to PLL */
- __raw_writel(lock, pll->lock_reg);
- __raw_writel(con0, pll->con_reg);
- __raw_writel(con1, pll->con_reg + 0x4);
+ writel_relaxed(lock, pll->lock_reg);
+ writel_relaxed(con0, pll->con_reg);
+ writel_relaxed(con1, pll->con_reg + 0x4);
/* Wait for locking. */
start = ktime_get();
- while (!(__raw_readl(pll->con_reg) & PLL46XX_LOCKED)) {
+ while (!(readl_relaxed(pll->con_reg) & PLL46XX_LOCKED)) {
ktime_t delta = ktime_sub(ktime_get(), start);
if (ktime_to_ms(delta) > PLL_TIMEOUT_MS) {
@@ -656,7 +656,7 @@ static unsigned long samsung_pll6552_recalc_rate(struct clk_hw *hw,
u32 mdiv, pdiv, sdiv, pll_con;
u64 fvco = parent_rate;
- pll_con = __raw_readl(pll->con_reg);
+ pll_con = readl_relaxed(pll->con_reg);
if (pll->type == pll_6552_s3c2416) {
mdiv = (pll_con >> PLL6552_MDIV_SHIFT_2416) & PLL6552_MDIV_MASK;
pdiv = (pll_con >> PLL6552_PDIV_SHIFT_2416) & PLL6552_PDIV_MASK;
@@ -696,8 +696,8 @@ static unsigned long samsung_pll6553_recalc_rate(struct clk_hw *hw,
u32 mdiv, pdiv, sdiv, kdiv, pll_con0, pll_con1;
u64 fvco = parent_rate;
- pll_con0 = __raw_readl(pll->con_reg);
- pll_con1 = __raw_readl(pll->con_reg + 0x4);
+ pll_con0 = readl_relaxed(pll->con_reg);
+ pll_con1 = readl_relaxed(pll->con_reg + 0x4);
mdiv = (pll_con0 >> PLL6553_MDIV_SHIFT) & PLL6553_MDIV_MASK;
pdiv = (pll_con0 >> PLL6553_PDIV_SHIFT) & PLL6553_PDIV_MASK;
sdiv = (pll_con0 >> PLL6553_SDIV_SHIFT) & PLL6553_SDIV_MASK;
@@ -734,7 +734,7 @@ static unsigned long samsung_s3c2410_pll_recalc_rate(struct clk_hw *hw,
u32 pll_con, mdiv, pdiv, sdiv;
u64 fvco = parent_rate;
- pll_con = __raw_readl(pll->con_reg);
+ pll_con = readl_relaxed(pll->con_reg);
mdiv = (pll_con >> PLLS3C2410_MDIV_SHIFT) & PLLS3C2410_MDIV_MASK;
pdiv = (pll_con >> PLLS3C2410_PDIV_SHIFT) & PLLS3C2410_PDIV_MASK;
sdiv = (pll_con >> PLLS3C2410_SDIV_SHIFT) & PLLS3C2410_SDIV_MASK;
@@ -752,7 +752,7 @@ static unsigned long samsung_s3c2440_mpll_recalc_rate(struct clk_hw *hw,
u32 pll_con, mdiv, pdiv, sdiv;
u64 fvco = parent_rate;
- pll_con = __raw_readl(pll->con_reg);
+ pll_con = readl_relaxed(pll->con_reg);
mdiv = (pll_con >> PLLS3C2410_MDIV_SHIFT) & PLLS3C2410_MDIV_MASK;
pdiv = (pll_con >> PLLS3C2410_PDIV_SHIFT) & PLLS3C2410_PDIV_MASK;
sdiv = (pll_con >> PLLS3C2410_SDIV_SHIFT) & PLLS3C2410_SDIV_MASK;
@@ -778,7 +778,7 @@ static int samsung_s3c2410_pll_set_rate(struct clk_hw *hw, unsigned long drate,
return -EINVAL;
}
- tmp = __raw_readl(pll->con_reg);
+ tmp = readl_relaxed(pll->con_reg);
/* Change PLL PMS values */
tmp &= ~((PLLS3C2410_MDIV_MASK << PLLS3C2410_MDIV_SHIFT) |
@@ -787,7 +787,7 @@ static int samsung_s3c2410_pll_set_rate(struct clk_hw *hw, unsigned long drate,
tmp |= (rate->mdiv << PLLS3C2410_MDIV_SHIFT) |
(rate->pdiv << PLLS3C2410_PDIV_SHIFT) |
(rate->sdiv << PLLS3C2410_SDIV_SHIFT);
- __raw_writel(tmp, pll->con_reg);
+ writel_relaxed(tmp, pll->con_reg);
/* Time to settle according to the manual */
udelay(300);
@@ -798,7 +798,7 @@ static int samsung_s3c2410_pll_set_rate(struct clk_hw *hw, unsigned long drate,
static int samsung_s3c2410_pll_enable(struct clk_hw *hw, int bit, bool enable)
{
struct samsung_clk_pll *pll = to_clk_pll(hw);
- u32 pll_en = __raw_readl(pll->lock_reg + PLLS3C2410_ENABLE_REG_OFFSET);
+ u32 pll_en = readl_relaxed(pll->lock_reg + PLLS3C2410_ENABLE_REG_OFFSET);
u32 pll_en_orig = pll_en;
if (enable)
@@ -806,7 +806,7 @@ static int samsung_s3c2410_pll_enable(struct clk_hw *hw, int bit, bool enable)
else
pll_en |= BIT(bit);
- __raw_writel(pll_en, pll->lock_reg + PLLS3C2410_ENABLE_REG_OFFSET);
+ writel_relaxed(pll_en, pll->lock_reg + PLLS3C2410_ENABLE_REG_OFFSET);
/* if we started the UPLL, then allow to settle */
if (enable && (pll_en_orig & BIT(bit)))
@@ -905,7 +905,7 @@ static unsigned long samsung_pll2550x_recalc_rate(struct clk_hw *hw,
u32 r, p, m, s, pll_stat;
u64 fvco = parent_rate;
- pll_stat = __raw_readl(pll->reg_base + pll->offset * 3);
+ pll_stat = readl_relaxed(pll->reg_base + pll->offset * 3);
r = (pll_stat >> PLL2550X_R_SHIFT) & PLL2550X_R_MASK;
if (!r)
return 0;
@@ -983,7 +983,7 @@ static unsigned long samsung_pll2550xx_recalc_rate(struct clk_hw *hw,
u32 mdiv, pdiv, sdiv, pll_con;
u64 fvco = parent_rate;
- pll_con = __raw_readl(pll->con_reg);
+ pll_con = readl_relaxed(pll->con_reg);
mdiv = (pll_con >> PLL2550XX_M_SHIFT) & PLL2550XX_M_MASK;
pdiv = (pll_con >> PLL2550XX_P_SHIFT) & PLL2550XX_P_MASK;
sdiv = (pll_con >> PLL2550XX_S_SHIFT) & PLL2550XX_S_MASK;
@@ -1019,19 +1019,19 @@ static int samsung_pll2550xx_set_rate(struct clk_hw *hw, unsigned long drate,
return -EINVAL;
}
- tmp = __raw_readl(pll->con_reg);
+ tmp = readl_relaxed(pll->con_reg);
if (!(samsung_pll2550xx_mp_change(rate->mdiv, rate->pdiv, tmp))) {
/* If only s change, change just s value only*/
tmp &= ~(PLL2550XX_S_MASK << PLL2550XX_S_SHIFT);
tmp |= rate->sdiv << PLL2550XX_S_SHIFT;
- __raw_writel(tmp, pll->con_reg);
+ writel_relaxed(tmp, pll->con_reg);
return 0;
}
/* Set PLL lock time. */
- __raw_writel(rate->pdiv * PLL2550XX_LOCK_FACTOR, pll->lock_reg);
+ writel_relaxed(rate->pdiv * PLL2550XX_LOCK_FACTOR, pll->lock_reg);
/* Change PLL PMS values */
tmp &= ~((PLL2550XX_M_MASK << PLL2550XX_M_SHIFT) |
@@ -1040,12 +1040,12 @@ static int samsung_pll2550xx_set_rate(struct clk_hw *hw, unsigned long drate,
tmp |= (rate->mdiv << PLL2550XX_M_SHIFT) |
(rate->pdiv << PLL2550XX_P_SHIFT) |
(rate->sdiv << PLL2550XX_S_SHIFT);
- __raw_writel(tmp, pll->con_reg);
+ writel_relaxed(tmp, pll->con_reg);
/* wait_lock_time */
do {
cpu_relax();
- tmp = __raw_readl(pll->con_reg);
+ tmp = readl_relaxed(pll->con_reg);
} while (!(tmp & (PLL2550XX_LOCK_STAT_MASK
<< PLL2550XX_LOCK_STAT_SHIFT)));
@@ -1089,8 +1089,8 @@ static unsigned long samsung_pll2650xx_recalc_rate(struct clk_hw *hw,
s16 kdiv;
u64 fvco = parent_rate;
- pll_con0 = __raw_readl(pll->con_reg);
- pll_con2 = __raw_readl(pll->con_reg + 8);
+ pll_con0 = readl_relaxed(pll->con_reg);
+ pll_con2 = readl_relaxed(pll->con_reg + 8);
mdiv = (pll_con0 >> PLL2650XX_MDIV_SHIFT) & PLL2650XX_MDIV_MASK;
pdiv = (pll_con0 >> PLL2650XX_PDIV_SHIFT) & PLL2650XX_PDIV_MASK;
sdiv = (pll_con0 >> PLL2650XX_SDIV_SHIFT) & PLL2650XX_SDIV_MASK;
@@ -1117,8 +1117,8 @@ static int samsung_pll2650xx_set_rate(struct clk_hw *hw, unsigned long drate,
return -EINVAL;
}
- pll_con0 = __raw_readl(pll->con_reg);
- pll_con2 = __raw_readl(pll->con_reg + 8);
+ pll_con0 = readl_relaxed(pll->con_reg);
+ pll_con2 = readl_relaxed(pll->con_reg + 8);
/* Change PLL PMS values */
pll_con0 &= ~(PLL2650XX_MDIV_MASK << PLL2650XX_MDIV_SHIFT |
@@ -1135,13 +1135,13 @@ static int samsung_pll2650xx_set_rate(struct clk_hw *hw, unsigned long drate,
<< PLL2650XX_KDIV_SHIFT;
/* Set PLL lock time. */
- __raw_writel(PLL2650XX_LOCK_FACTOR * rate->pdiv, pll->lock_reg);
+ writel_relaxed(PLL2650XX_LOCK_FACTOR * rate->pdiv, pll->lock_reg);
- __raw_writel(pll_con0, pll->con_reg);
- __raw_writel(pll_con2, pll->con_reg + 8);
+ writel_relaxed(pll_con0, pll->con_reg);
+ writel_relaxed(pll_con2, pll->con_reg + 8);
do {
- tmp = __raw_readl(pll->con_reg);
+ tmp = readl_relaxed(pll->con_reg);
} while (!(tmp & (0x1 << PLL2650XX_PLL_LOCKTIME_SHIFT)));
return 0;
--
2.8.3
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