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raspberrypi-kernel
提交 fed415e4 编写于 作者: T Tony Lindgren 提交者： Russell King
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[ARM] omap: Fix omap1 clock issues 

This fixes booting, and is a step toward fixing things properly:

- Make enable_reg u32 instead of u16
  [rmk: virtual addresses are void __iomem *, not u32]
- Get rid of VIRTUAL_IO_ADDRESS for clocks
- Use __raw_read/write instead of omap_read/write for clock registers

This patch adds a bunch of compile warnings until omap1 clock
also uses offsets.

linux-omap source commit is 9d1dff8638c9e96a401e1885f9948662e9ff9636.
Signed-off-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
上级 da0747d4
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Showing with 53 addition and 88 deletion
arch/arm/mach-omap1/clock.c
浏览文件 @ fed415e4
......@@ -163,7 +163,7 @@ static void omap1_watchdog_recalc(struct clk * clk)
static void omap1_uart_recalc(struct clk * clk)
{
unsigned int val = omap_readl(clk->enable_reg);
unsigned int val = __raw_readl(clk->enable_reg);
if (val & clk->enable_bit)
clk->rate = 48000000;
else
......@@ -517,14 +517,14 @@ static int omap1_set_uart_rate(struct clk * clk, unsigned long rate)
{
unsigned int val;
val = omap_readl(clk->enable_reg);
val = __raw_readl(clk->enable_reg);
if (rate == 12000000)
val &= ~(1 << clk->enable_bit);
else if (rate == 48000000)
val |= (1 << clk->enable_bit);
else
return -EINVAL;
omap_writel(val, clk->enable_reg);
__raw_writel(val, clk->enable_reg);
clk->rate = rate;
return 0;
......@@ -543,8 +543,8 @@ static int omap1_set_ext_clk_rate(struct clk * clk, unsigned long rate)
else
ratio_bits = (dsor - 2) << 2;
ratio_bits |= omap_readw(clk->enable_reg) & ~0xfd;
omap_writew(ratio_bits, clk->enable_reg);
ratio_bits |= __raw_readw(clk->enable_reg) & ~0xfd;
__raw_writew(ratio_bits, clk->enable_reg);
return 0;
}
......@@ -583,8 +583,8 @@ static void omap1_init_ext_clk(struct clk * clk)
__u16 ratio_bits;
/* Determine current rate and ensure clock is based on 96MHz APLL */
ratio_bits = omap_readw(clk->enable_reg) & ~1;
omap_writew(ratio_bits, clk->enable_reg);
ratio_bits = __raw_readw(clk->enable_reg) & ~1;
__raw_writew(ratio_bits, clk->enable_reg);
ratio_bits = (ratio_bits & 0xfc) >> 2;
if (ratio_bits > 6)
......@@ -646,25 +646,13 @@ static int omap1_clk_enable_generic(struct clk *clk)
}
if (clk->flags & ENABLE_REG_32BIT) {
if (clk->flags & VIRTUAL_IO_ADDRESS) {
regval32 = __raw_readl(clk->enable_reg);
regval32 |= (1 << clk->enable_bit);
__raw_writel(regval32, clk->enable_reg);
} else {
regval32 = omap_readl(clk->enable_reg);
regval32 |= (1 << clk->enable_bit);
omap_writel(regval32, clk->enable_reg);
}
} else {
if (clk->flags & VIRTUAL_IO_ADDRESS) {
regval16 = __raw_readw(clk->enable_reg);
regval16 |= (1 << clk->enable_bit);
__raw_writew(regval16, clk->enable_reg);
} else {
regval16 = omap_readw(clk->enable_reg);
regval16 |= (1 << clk->enable_bit);
omap_writew(regval16, clk->enable_reg);
}
}
return 0;
......@@ -679,25 +667,13 @@ static void omap1_clk_disable_generic(struct clk *clk)
return;
if (clk->flags & ENABLE_REG_32BIT) {
if (clk->flags & VIRTUAL_IO_ADDRESS) {
regval32 = __raw_readl(clk->enable_reg);
regval32 &= ~(1 << clk->enable_bit);
__raw_writel(regval32, clk->enable_reg);
} else {
regval32 = omap_readl(clk->enable_reg);
regval32 &= ~(1 << clk->enable_bit);
omap_writel(regval32, clk->enable_reg);
}
} else {
if (clk->flags & VIRTUAL_IO_ADDRESS) {
regval16 = __raw_readw(clk->enable_reg);
regval16 &= ~(1 << clk->enable_bit);
__raw_writew(regval16, clk->enable_reg);
} else {
regval16 = omap_readw(clk->enable_reg);
regval16 &= ~(1 << clk->enable_bit);
omap_writew(regval16, clk->enable_reg);
}
}
}
......@@ -745,17 +721,10 @@ static void __init omap1_clk_disable_unused(struct clk *clk)
}
/* Is the clock already disabled? */
if (clk->flags & ENABLE_REG_32BIT) {
if (clk->flags & VIRTUAL_IO_ADDRESS)
if (clk->flags & ENABLE_REG_32BIT)
regval32 = __raw_readl(clk->enable_reg);
else
regval32 = omap_readl(clk->enable_reg);
} else {
if (clk->flags & VIRTUAL_IO_ADDRESS)
regval32 = __raw_readw(clk->enable_reg);
else
regval32 = omap_readw(clk->enable_reg);
}
if ((regval32 & (1 << clk->enable_bit)) == 0)
return;
......
arch/arm/mach-omap1/clock.h
浏览文件 @ fed415e4
......@@ -165,7 +165,7 @@ static struct arm_idlect1_clk ck_dpll1out = {
.parent = &ck_dpll1,
.flags = CLOCK_IDLE_CONTROL |
ENABLE_REG_32BIT | RATE_PROPAGATES,
.enable_reg = (void __iomem *)ARM_IDLECT2,
.enable_reg = OMAP1_IO_ADDRESS(ARM_IDLECT2),
.enable_bit = EN_CKOUT_ARM,
.recalc = &followparent_recalc,
},
......@@ -177,7 +177,7 @@ static struct clk sossi_ck = {
.ops = &clkops_generic,
.parent = &ck_dpll1out.clk,
.flags = CLOCK_NO_IDLE_PARENT | ENABLE_REG_32BIT,
.enable_reg = (void __iomem *)MOD_CONF_CTRL_1,
.enable_reg = OMAP1_IO_ADDRESS(MOD_CONF_CTRL_1),
.enable_bit = 16,
.recalc = &omap1_sossi_recalc,
.set_rate = &omap1_set_sossi_rate,
......@@ -200,7 +200,7 @@ static struct arm_idlect1_clk armper_ck = {
.ops = &clkops_generic,
.parent = &ck_dpll1,
.flags = CLOCK_IDLE_CONTROL,
.enable_reg = (void __iomem *)ARM_IDLECT2,
.enable_reg = OMAP1_IO_ADDRESS(ARM_IDLECT2),
.enable_bit = EN_PERCK,
.rate_offset = CKCTL_PERDIV_OFFSET,
.recalc = &omap1_ckctl_recalc,
......@@ -214,7 +214,7 @@ static struct clk arm_gpio_ck = {
.name = "arm_gpio_ck",
.ops = &clkops_generic,
.parent = &ck_dpll1,
.enable_reg = (void __iomem *)ARM_IDLECT2,
.enable_reg = OMAP1_IO_ADDRESS(ARM_IDLECT2),
.enable_bit = EN_GPIOCK,
.recalc = &followparent_recalc,
};
......@@ -225,7 +225,7 @@ static struct arm_idlect1_clk armxor_ck = {
.ops = &clkops_generic,
.parent = &ck_ref,
.flags = CLOCK_IDLE_CONTROL,
.enable_reg = (void __iomem *)ARM_IDLECT2,
.enable_reg = OMAP1_IO_ADDRESS(ARM_IDLECT2),
.enable_bit = EN_XORPCK,
.recalc = &followparent_recalc,
},
......@@ -238,7 +238,7 @@ static struct arm_idlect1_clk armtim_ck = {
.ops = &clkops_generic,
.parent = &ck_ref,
.flags = CLOCK_IDLE_CONTROL,
.enable_reg = (void __iomem *)ARM_IDLECT2,
.enable_reg = OMAP1_IO_ADDRESS(ARM_IDLECT2),
.enable_bit = EN_TIMCK,
.recalc = &followparent_recalc,
},
......@@ -251,7 +251,7 @@ static struct arm_idlect1_clk armwdt_ck = {
.ops = &clkops_generic,
.parent = &ck_ref,
.flags = CLOCK_IDLE_CONTROL,
.enable_reg = (void __iomem *)ARM_IDLECT2,
.enable_reg = OMAP1_IO_ADDRESS(ARM_IDLECT2),
.enable_bit = EN_WDTCK,
.recalc = &omap1_watchdog_recalc,
},
......@@ -274,7 +274,7 @@ static struct clk dsp_ck = {
.name = "dsp_ck",
.ops = &clkops_generic,
.parent = &ck_dpll1,
.enable_reg = (void __iomem *)ARM_CKCTL,
.enable_reg = OMAP1_IO_ADDRESS(ARM_CKCTL),
.enable_bit = EN_DSPCK,
.rate_offset = CKCTL_DSPDIV_OFFSET,
.recalc = &omap1_ckctl_recalc,
......@@ -296,7 +296,6 @@ static struct clk dspper_ck = {
.name = "dspper_ck",
.ops = &clkops_dspck,
.parent = &ck_dpll1,
.flags = VIRTUAL_IO_ADDRESS,
.enable_reg = DSP_IDLECT2,
.enable_bit = EN_PERCK,
.rate_offset = CKCTL_PERDIV_OFFSET,
......@@ -309,7 +308,6 @@ static struct clk dspxor_ck = {
.name = "dspxor_ck",
.ops = &clkops_dspck,
.parent = &ck_ref,
.flags = VIRTUAL_IO_ADDRESS,
.enable_reg = DSP_IDLECT2,
.enable_bit = EN_XORPCK,
.recalc = &followparent_recalc,
......@@ -319,7 +317,6 @@ static struct clk dsptim_ck = {
.name = "dsptim_ck",
.ops = &clkops_dspck,
.parent = &ck_ref,
.flags = VIRTUAL_IO_ADDRESS,
.enable_reg = DSP_IDLECT2,
.enable_bit = EN_DSPTIMCK,
.recalc = &followparent_recalc,
......@@ -364,7 +361,7 @@ static struct clk l3_ocpi_ck = {
.name = "l3_ocpi_ck",
.ops = &clkops_generic,
.parent = &tc_ck.clk,
.enable_reg = (void __iomem *)ARM_IDLECT3,
.enable_reg = OMAP1_IO_ADDRESS(ARM_IDLECT3),
.enable_bit = EN_OCPI_CK,
.recalc = &followparent_recalc,
};
......@@ -373,7 +370,7 @@ static struct clk tc1_ck = {
.name = "tc1_ck",
.ops = &clkops_generic,
.parent = &tc_ck.clk,
.enable_reg = (void __iomem *)ARM_IDLECT3,
.enable_reg = OMAP1_IO_ADDRESS(ARM_IDLECT3),
.enable_bit = EN_TC1_CK,
.recalc = &followparent_recalc,
};
......@@ -382,7 +379,7 @@ static struct clk tc2_ck = {
.name = "tc2_ck",
.ops = &clkops_generic,
.parent = &tc_ck.clk,
.enable_reg = (void __iomem *)ARM_IDLECT3,
.enable_reg = OMAP1_IO_ADDRESS(ARM_IDLECT3),
.enable_bit = EN_TC2_CK,
.recalc = &followparent_recalc,
};
......@@ -408,7 +405,7 @@ static struct arm_idlect1_clk api_ck = {
.ops = &clkops_generic,
.parent = &tc_ck.clk,
.flags = CLOCK_IDLE_CONTROL,
.enable_reg = (void __iomem *)ARM_IDLECT2,
.enable_reg = OMAP1_IO_ADDRESS(ARM_IDLECT2),
.enable_bit = EN_APICK,
.recalc = &followparent_recalc,
},
......@@ -421,7 +418,7 @@ static struct arm_idlect1_clk lb_ck = {
.ops = &clkops_generic,
.parent = &tc_ck.clk,
.flags = CLOCK_IDLE_CONTROL,
.enable_reg = (void __iomem *)ARM_IDLECT2,
.enable_reg = OMAP1_IO_ADDRESS(ARM_IDLECT2),
.enable_bit = EN_LBCK,
.recalc = &followparent_recalc,
},
......@@ -446,7 +443,7 @@ static struct clk lcd_ck_16xx = {
.name = "lcd_ck",
.ops = &clkops_generic,
.parent = &ck_dpll1,
.enable_reg = (void __iomem *)ARM_IDLECT2,
.enable_reg = OMAP1_IO_ADDRESS(ARM_IDLECT2),
.enable_bit = EN_LCDCK,
.rate_offset = CKCTL_LCDDIV_OFFSET,
.recalc = &omap1_ckctl_recalc,
......@@ -460,7 +457,7 @@ static struct arm_idlect1_clk lcd_ck_1510 = {
.ops = &clkops_generic,
.parent = &ck_dpll1,
.flags = CLOCK_IDLE_CONTROL,
.enable_reg = (void __iomem *)ARM_IDLECT2,
.enable_reg = OMAP1_IO_ADDRESS(ARM_IDLECT2),
.enable_bit = EN_LCDCK,
.rate_offset = CKCTL_LCDDIV_OFFSET,
.recalc = &omap1_ckctl_recalc,
......@@ -477,7 +474,7 @@ static struct clk uart1_1510 = {
.parent = &armper_ck.clk,
.rate = 12000000,
.flags = ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT,
.enable_reg = (void __iomem *)MOD_CONF_CTRL_0,
.enable_reg = OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0),
.enable_bit = 29, /* Chooses between 12MHz and 48MHz */
.set_rate = &omap1_set_uart_rate,
.recalc = &omap1_uart_recalc,
......@@ -492,7 +489,7 @@ static struct uart_clk uart1_16xx = {
.rate = 48000000,
.flags = RATE_FIXED | ENABLE_REG_32BIT |
CLOCK_NO_IDLE_PARENT,
.enable_reg = (void __iomem *)MOD_CONF_CTRL_0,
.enable_reg = OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0),
.enable_bit = 29,
},
.sysc_addr = 0xfffb0054,
......@@ -505,7 +502,7 @@ static struct clk uart2_ck = {
.parent = &armper_ck.clk,
.rate = 12000000,
.flags = ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT,
.enable_reg = (void __iomem *)MOD_CONF_CTRL_0,
.enable_reg = OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0),
.enable_bit = 30, /* Chooses between 12MHz and 48MHz */
.set_rate = &omap1_set_uart_rate,
.recalc = &omap1_uart_recalc,
......@@ -518,7 +515,7 @@ static struct clk uart3_1510 = {
.parent = &armper_ck.clk,
.rate = 12000000,
.flags = ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT,
.enable_reg = (void __iomem *)MOD_CONF_CTRL_0,
.enable_reg = OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0),
.enable_bit = 31, /* Chooses between 12MHz and 48MHz */
.set_rate = &omap1_set_uart_rate,
.recalc = &omap1_uart_recalc,
......@@ -533,7 +530,7 @@ static struct uart_clk uart3_16xx = {
.rate = 48000000,
.flags = RATE_FIXED | ENABLE_REG_32BIT |
CLOCK_NO_IDLE_PARENT,
.enable_reg = (void __iomem *)MOD_CONF_CTRL_0,
.enable_reg = OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0),
.enable_bit = 31,
},
.sysc_addr = 0xfffb9854,
......@@ -545,7 +542,7 @@ static struct clk usb_clko = { /* 6 MHz output on W4_USB_CLKO */
/* Direct from ULPD, no parent */
.rate = 6000000,
.flags = RATE_FIXED | ENABLE_REG_32BIT,
.enable_reg = (void __iomem *)ULPD_CLOCK_CTRL,
.enable_reg = OMAP1_IO_ADDRESS(ULPD_CLOCK_CTRL),
.enable_bit = USB_MCLK_EN_BIT,
};
......@@ -555,7 +552,7 @@ static struct clk usb_hhc_ck1510 = {
/* Direct from ULPD, no parent */
.rate = 48000000, /* Actually 2 clocks, 12MHz and 48MHz */
.flags = RATE_FIXED | ENABLE_REG_32BIT,
.enable_reg = (void __iomem *)MOD_CONF_CTRL_0,
.enable_reg = OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0),
.enable_bit = USB_HOST_HHC_UHOST_EN,
};
......@@ -566,7 +563,7 @@ static struct clk usb_hhc_ck16xx = {
.rate = 48000000,
/* OTG_SYSCON_2.OTG_PADEN == 0 (not 1510-compatible) */
.flags = RATE_FIXED | ENABLE_REG_32BIT,
.enable_reg = (void __iomem *)OTG_BASE + 0x08 /* OTG_SYSCON_2 */,
.enable_reg = OMAP1_IO_ADDRESS(OTG_BASE + 0x08), /* OTG_SYSCON_2 */
.enable_bit = 8 /* UHOST_EN */,
};
......@@ -576,7 +573,7 @@ static struct clk usb_dc_ck = {
/* Direct from ULPD, no parent */
.rate = 48000000,
.flags = RATE_FIXED,
.enable_reg = (void __iomem *)SOFT_REQ_REG,
.enable_reg = OMAP1_IO_ADDRESS(SOFT_REQ_REG),
.enable_bit = 4,
};
......@@ -586,7 +583,7 @@ static struct clk mclk_1510 = {
/* Direct from ULPD, no parent. May be enabled by ext hardware. */
.rate = 12000000,
.flags = RATE_FIXED,
.enable_reg = (void __iomem *)SOFT_REQ_REG,
.enable_reg = OMAP1_IO_ADDRESS(SOFT_REQ_REG),
.enable_bit = 6,
};
......@@ -594,7 +591,7 @@ static struct clk mclk_16xx = {
.name = "mclk",
.ops = &clkops_generic,
/* Direct from ULPD, no parent. May be enabled by ext hardware. */
.enable_reg = (void __iomem *)COM_CLK_DIV_CTRL_SEL,
.enable_reg = OMAP1_IO_ADDRESS(COM_CLK_DIV_CTRL_SEL),
.enable_bit = COM_ULPD_PLL_CLK_REQ,
.set_rate = &omap1_set_ext_clk_rate,
.round_rate = &omap1_round_ext_clk_rate,
......@@ -613,7 +610,7 @@ static struct clk bclk_16xx = {
.name = "bclk",
.ops = &clkops_generic,
/* Direct from ULPD, no parent. May be enabled by ext hardware. */
.enable_reg = (void __iomem *)SWD_CLK_DIV_CTRL_SEL,
.enable_reg = OMAP1_IO_ADDRESS(SWD_CLK_DIV_CTRL_SEL),
.enable_bit = SWD_ULPD_PLL_CLK_REQ,
.set_rate = &omap1_set_ext_clk_rate,
.round_rate = &omap1_round_ext_clk_rate,
......@@ -627,7 +624,7 @@ static struct clk mmc1_ck = {
.parent = &armper_ck.clk,
.rate = 48000000,
.flags = RATE_FIXED | ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT,
.enable_reg = (void __iomem *)MOD_CONF_CTRL_0,
.enable_reg = OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0),
.enable_bit = 23,
};
......@@ -639,7 +636,7 @@ static struct clk mmc2_ck = {
.parent = &armper_ck.clk,
.rate = 48000000,
.flags = RATE_FIXED | ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT,
.enable_reg = (void __iomem *)MOD_CONF_CTRL_0,
.enable_reg = OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0),
.enable_bit = 20,
};
......
arch/arm/plat-omap/include/mach/clock.h
浏览文件 @ fed415e4
......@@ -134,7 +134,6 @@ extern const struct clkops clkops_null;
#define RATE_PROPAGATES (1 << 2) /* Program children too */
/* bits 3-4 are free */
#define ENABLE_REG_32BIT (1 << 5) /* Use 32-bit access */
#define VIRTUAL_IO_ADDRESS (1 << 6) /* Clock in virtual address */
#define CLOCK_IDLE_CONTROL (1 << 7)
#define CLOCK_NO_IDLE_PARENT (1 << 8)
#define DELAYED_APP (1 << 9) /* Delay application of clock */
......
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