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Message-Id: <0a6b12715f8e339eb42f4dc73921a8402af969bf.1329500622.git.nicolas.ferre@atmel.com>
Date: Fri, 17 Feb 2012 18:50:02 +0100
From: Nicolas Ferre <nicolas.ferre@...el.com>
To: plagnioj@...osoft.com, linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH 10/18] ARM: at91/PMC: make register base soc independent
From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
Acked-by: Nicolas Ferre <nicolas.ferre@...el.com>
---
arch/arm/mach-at91/at91rm9200.c | 2 +-
arch/arm/mach-at91/clock.c | 75 +++++++++++++------------
arch/arm/mach-at91/include/mach/at91_pmc.h | 56 +++++++++++-------
arch/arm/mach-at91/include/mach/at91rm9200.h | 4 +-
arch/arm/mach-at91/include/mach/at91sam9260.h | 1 -
arch/arm/mach-at91/include/mach/at91sam9261.h | 1 -
arch/arm/mach-at91/include/mach/at91sam9263.h | 1 -
arch/arm/mach-at91/include/mach/at91sam9g45.h | 1 -
arch/arm/mach-at91/include/mach/at91sam9rl.h | 1 -
arch/arm/mach-at91/include/mach/at91sam9x5.h | 3 +-
arch/arm/mach-at91/include/mach/hardware.h | 3 +-
arch/arm/mach-at91/pm.c | 9 +--
arch/arm/mach-at91/pm_slowclock.S | 38 ++++++------
drivers/usb/gadget/atmel_usba_udc.c | 6 +-
14 files changed, 105 insertions(+), 96 deletions(-)
diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c
index 94141b2..c7efa17 100644
--- a/arch/arm/mach-at91/at91rm9200.c
+++ b/arch/arm/mach-at91/at91rm9200.c
@@ -295,7 +295,7 @@ static void at91rm9200_idle(void)
* Disable the processor clock. The processor will be automatically
* re-enabled by an interrupt or by a reset.
*/
- at91_sys_write(AT91_PMC_SCDR, AT91_PMC_PCK);
+ at91_pmc_write(AT91_PMC_SCDR, AT91_PMC_PCK);
}
static void at91rm9200_restart(char mode, const char *cmd)
diff --git a/arch/arm/mach-at91/clock.c b/arch/arm/mach-at91/clock.c
index d1b4e07..57b15a9 100644
--- a/arch/arm/mach-at91/clock.c
+++ b/arch/arm/mach-at91/clock.c
@@ -33,6 +33,7 @@
#include "clock.h"
#include "generic.h"
+void __iomem *at91_pmc_base;
/*
* There's a lot more which can be done with clocks, including cpufreq
@@ -125,11 +126,11 @@ static void pllb_mode(struct clk *clk, int is_on)
value = 0;
// REVISIT: Add work-around for AT91RM9200 Errata #26 ?
- at91_sys_write(AT91_CKGR_PLLBR, value);
+ at91_pmc_write(AT91_CKGR_PLLBR, value);
do {
cpu_relax();
- } while ((at91_sys_read(AT91_PMC_SR) & AT91_PMC_LOCKB) != is_on);
+ } while ((at91_pmc_read(AT91_PMC_SR) & AT91_PMC_LOCKB) != is_on);
}
static struct clk pllb = {
@@ -144,24 +145,24 @@ static struct clk pllb = {
static void pmc_sys_mode(struct clk *clk, int is_on)
{
if (is_on)
- at91_sys_write(AT91_PMC_SCER, clk->pmc_mask);
+ at91_pmc_write(AT91_PMC_SCER, clk->pmc_mask);
else
- at91_sys_write(AT91_PMC_SCDR, clk->pmc_mask);
+ at91_pmc_write(AT91_PMC_SCDR, clk->pmc_mask);
}
static void pmc_uckr_mode(struct clk *clk, int is_on)
{
- unsigned int uckr = at91_sys_read(AT91_CKGR_UCKR);
+ unsigned int uckr = at91_pmc_read(AT91_CKGR_UCKR);
if (is_on) {
is_on = AT91_PMC_LOCKU;
- at91_sys_write(AT91_CKGR_UCKR, uckr | clk->pmc_mask);
+ at91_pmc_write(AT91_CKGR_UCKR, uckr | clk->pmc_mask);
} else
- at91_sys_write(AT91_CKGR_UCKR, uckr & ~(clk->pmc_mask));
+ at91_pmc_write(AT91_CKGR_UCKR, uckr & ~(clk->pmc_mask));
do {
cpu_relax();
- } while ((at91_sys_read(AT91_PMC_SR) & AT91_PMC_LOCKU) != is_on);
+ } while ((at91_pmc_read(AT91_PMC_SR) & AT91_PMC_LOCKU) != is_on);
}
/* USB function clocks (PLLB must be 48 MHz) */
@@ -197,9 +198,9 @@ struct clk mck = {
static void pmc_periph_mode(struct clk *clk, int is_on)
{
if (is_on)
- at91_sys_write(AT91_PMC_PCER, clk->pmc_mask);
+ at91_pmc_write(AT91_PMC_PCER, clk->pmc_mask);
else
- at91_sys_write(AT91_PMC_PCDR, clk->pmc_mask);
+ at91_pmc_write(AT91_PMC_PCDR, clk->pmc_mask);
}
static struct clk __init *at91_css_to_clk(unsigned long css)
@@ -359,10 +360,10 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
if (actual && actual <= rate) {
u32 pckr;
- pckr = at91_sys_read(AT91_PMC_PCKR(clk->id));
+ pckr = at91_pmc_read(AT91_PMC_PCKR(clk->id));
pckr &= css_mask; /* keep clock selection */
pckr |= prescale << prescale_offset;
- at91_sys_write(AT91_PMC_PCKR(clk->id), pckr);
+ at91_pmc_write(AT91_PMC_PCKR(clk->id), pckr);
clk->rate_hz = actual;
break;
}
@@ -396,7 +397,7 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
clk->rate_hz = parent->rate_hz;
clk->parent = parent;
- at91_sys_write(AT91_PMC_PCKR(clk->id), parent->id);
+ at91_pmc_write(AT91_PMC_PCKR(clk->id), parent->id);
spin_unlock_irqrestore(&clk_lock, flags);
return 0;
@@ -415,7 +416,7 @@ static void __init init_programmable_clock(struct clk *clk)
else
css_mask = AT91_PMC_CSS;
- pckr = at91_sys_read(AT91_PMC_PCKR(clk->id));
+ pckr = at91_pmc_read(AT91_PMC_PCKR(clk->id));
parent = at91_css_to_clk(pckr & css_mask);
clk->parent = parent;
clk->rate_hz = parent->rate_hz / pmc_prescaler_divider(pckr);
@@ -432,19 +433,19 @@ static int at91_clk_show(struct seq_file *s, void *unused)
u32 scsr, pcsr, uckr = 0, sr;
struct clk *clk;
- seq_printf(s, "SCSR = %8x\n", scsr = at91_sys_read(AT91_PMC_SCSR));
- seq_printf(s, "PCSR = %8x\n", pcsr = at91_sys_read(AT91_PMC_PCSR));
- seq_printf(s, "MOR = %8x\n", at91_sys_read(AT91_CKGR_MOR));
- seq_printf(s, "MCFR = %8x\n", at91_sys_read(AT91_CKGR_MCFR));
- seq_printf(s, "PLLA = %8x\n", at91_sys_read(AT91_CKGR_PLLAR));
+ seq_printf(s, "SCSR = %8x\n", scsr = at91_pmc_read(AT91_PMC_SCSR));
+ seq_printf(s, "PCSR = %8x\n", pcsr = at91_pmc_read(AT91_PMC_PCSR));
+ seq_printf(s, "MOR = %8x\n", at91_pmc_read(AT91_CKGR_MOR));
+ seq_printf(s, "MCFR = %8x\n", at91_pmc_read(AT91_CKGR_MCFR));
+ seq_printf(s, "PLLA = %8x\n", at91_pmc_read(AT91_CKGR_PLLAR));
if (cpu_has_pllb())
- seq_printf(s, "PLLB = %8x\n", at91_sys_read(AT91_CKGR_PLLBR));
+ seq_printf(s, "PLLB = %8x\n", at91_pmc_read(AT91_CKGR_PLLBR));
if (cpu_has_utmi())
- seq_printf(s, "UCKR = %8x\n", uckr = at91_sys_read(AT91_CKGR_UCKR));
- seq_printf(s, "MCKR = %8x\n", at91_sys_read(AT91_PMC_MCKR));
+ seq_printf(s, "UCKR = %8x\n", uckr = at91_pmc_read(AT91_CKGR_UCKR));
+ seq_printf(s, "MCKR = %8x\n", at91_pmc_read(AT91_PMC_MCKR));
if (cpu_has_upll())
- seq_printf(s, "USB = %8x\n", at91_sys_read(AT91_PMC_USB));
- seq_printf(s, "SR = %8x\n", sr = at91_sys_read(AT91_PMC_SR));
+ seq_printf(s, "USB = %8x\n", at91_pmc_read(AT91_PMC_USB));
+ seq_printf(s, "SR = %8x\n", sr = at91_pmc_read(AT91_PMC_SR));
seq_printf(s, "\n");
@@ -632,14 +633,14 @@ static void __init at91_pllb_usbfs_clock_init(unsigned long main_clock)
if (cpu_is_at91rm9200()) {
uhpck.pmc_mask = AT91RM9200_PMC_UHP;
udpck.pmc_mask = AT91RM9200_PMC_UDP;
- at91_sys_write(AT91_PMC_SCER, AT91RM9200_PMC_MCKUDP);
+ at91_pmc_write(AT91_PMC_SCER, AT91RM9200_PMC_MCKUDP);
} else if (cpu_is_at91sam9260() || cpu_is_at91sam9261() ||
cpu_is_at91sam9263() || cpu_is_at91sam9g20() ||
cpu_is_at91sam9g10()) {
uhpck.pmc_mask = AT91SAM926x_PMC_UHP;
udpck.pmc_mask = AT91SAM926x_PMC_UDP;
}
- at91_sys_write(AT91_CKGR_PLLBR, 0);
+ at91_pmc_write(AT91_CKGR_PLLBR, 0);
udpck.rate_hz = at91_usb_rate(&pllb, pllb.rate_hz, at91_pllb_usb_init);
uhpck.rate_hz = at91_usb_rate(&pllb, pllb.rate_hz, at91_pllb_usb_init);
@@ -656,13 +657,13 @@ static void __init at91_upll_usbfs_clock_init(unsigned long main_clock)
/* Setup divider by 10 to reach 48 MHz */
usbr |= ((10 - 1) << 8) & AT91_PMC_OHCIUSBDIV;
- at91_sys_write(AT91_PMC_USB, usbr);
+ at91_pmc_write(AT91_PMC_USB, usbr);
/* Now set uhpck values */
uhpck.parent = &utmi_clk;
uhpck.pmc_mask = AT91SAM926x_PMC_UHP;
uhpck.rate_hz = utmi_clk.rate_hz;
- uhpck.rate_hz /= 1 + ((at91_sys_read(AT91_PMC_USB) & AT91_PMC_OHCIUSBDIV) >> 8);
+ uhpck.rate_hz /= 1 + ((at91_pmc_read(AT91_PMC_USB) & AT91_PMC_OHCIUSBDIV) >> 8);
}
int __init at91_clock_init(unsigned long main_clock)
@@ -671,6 +672,10 @@ int __init at91_clock_init(unsigned long main_clock)
int i;
int pll_overclock = false;
+ at91_pmc_base = ioremap(AT91_PMC, 256);
+ if (!at91_pmc_base)
+ panic("Impossible to ioremap AT91_PMC 0x%x\n", AT91_PMC);
+
/*
* When the bootloader initialized the main oscillator correctly,
* there's no problem using the cycle counter. But if it didn't,
@@ -679,14 +684,14 @@ int __init at91_clock_init(unsigned long main_clock)
*/
if (!main_clock) {
do {
- tmp = at91_sys_read(AT91_CKGR_MCFR);
+ tmp = at91_pmc_read(AT91_CKGR_MCFR);
} while (!(tmp & AT91_PMC_MAINRDY));
main_clock = (tmp & AT91_PMC_MAINF) * (AT91_SLOW_CLOCK / 16);
}
main_clk.rate_hz = main_clock;
/* report if PLLA is more than mildly overclocked */
- plla.rate_hz = at91_pll_rate(&plla, main_clock, at91_sys_read(AT91_CKGR_PLLAR));
+ plla.rate_hz = at91_pll_rate(&plla, main_clock, at91_pmc_read(AT91_CKGR_PLLAR));
if (cpu_has_300M_plla()) {
if (plla.rate_hz > 300000000)
pll_overclock = true;
@@ -701,7 +706,7 @@ int __init at91_clock_init(unsigned long main_clock)
pr_info("Clocks: PLLA overclocked, %ld MHz\n", plla.rate_hz / 1000000);
if (cpu_has_plladiv2()) {
- mckr = at91_sys_read(AT91_PMC_MCKR);
+ mckr = at91_pmc_read(AT91_PMC_MCKR);
plla.rate_hz /= (1 << ((mckr & AT91_PMC_PLLADIV2) >> 12)); /* plla divisor by 2 */
}
@@ -741,7 +746,7 @@ int __init at91_clock_init(unsigned long main_clock)
* MCK and CPU derive from one of those primary clocks.
* For now, assume this parentage won't change.
*/
- mckr = at91_sys_read(AT91_PMC_MCKR);
+ mckr = at91_pmc_read(AT91_PMC_MCKR);
mck.parent = at91_css_to_clk(mckr & AT91_PMC_CSS);
freq = mck.parent->rate_hz;
freq /= pmc_prescaler_divider(mckr); /* prescale */
@@ -814,8 +819,8 @@ static int __init at91_clock_reset(void)
pr_debug("Clocks: disable unused %s\n", clk->name);
}
- at91_sys_write(AT91_PMC_PCDR, pcdr);
- at91_sys_write(AT91_PMC_SCDR, scdr);
+ at91_pmc_write(AT91_PMC_PCDR, pcdr);
+ at91_pmc_write(AT91_PMC_SCDR, scdr);
return 0;
}
@@ -823,6 +828,6 @@ late_initcall(at91_clock_reset);
void at91sam9_idle(void)
{
- at91_sys_write(AT91_PMC_SCDR, AT91_PMC_PCK);
+ at91_pmc_write(AT91_PMC_SCDR, AT91_PMC_PCK);
cpu_do_idle();
}
diff --git a/arch/arm/mach-at91/include/mach/at91_pmc.h b/arch/arm/mach-at91/include/mach/at91_pmc.h
index f9fdbbe..3660478 100644
--- a/arch/arm/mach-at91/include/mach/at91_pmc.h
+++ b/arch/arm/mach-at91/include/mach/at91_pmc.h
@@ -16,10 +16,22 @@
#ifndef AT91_PMC_H
#define AT91_PMC_H
-#define AT91_PMC_SCER (AT91_PMC + 0x00) /* System Clock Enable Register */
-#define AT91_PMC_SCDR (AT91_PMC + 0x04) /* System Clock Disable Register */
+#ifndef __ASSEMBLY__
+extern void __iomem *at91_pmc_base;
-#define AT91_PMC_SCSR (AT91_PMC + 0x08) /* System Clock Status Register */
+#define at91_pmc_read(field) \
+ __raw_readl(at91_pmc_base + field)
+
+#define at91_pmc_write(field, value) \
+ __raw_writel(value, at91_pmc_base + field)
+#else
+.extern at91_aic_base
+#endif
+
+#define AT91_PMC_SCER 0x00 /* System Clock Enable Register */
+#define AT91_PMC_SCDR 0x04 /* System Clock Disable Register */
+
+#define AT91_PMC_SCSR 0x08 /* System Clock Status Register */
#define AT91_PMC_PCK (1 << 0) /* Processor Clock */
#define AT91RM9200_PMC_UDP (1 << 1) /* USB Devcice Port Clock [AT91RM9200 only] */
#define AT91RM9200_PMC_MCKUDP (1 << 2) /* USB Device Port Master Clock Automatic Disable on Suspend [AT91RM9200 only] */
@@ -34,17 +46,17 @@
#define AT91_PMC_HCK0 (1 << 16) /* AHB Clock (USB host) [AT91SAM9261 only] */
#define AT91_PMC_HCK1 (1 << 17) /* AHB Clock (LCD) [AT91SAM9261 only] */
-#define AT91_PMC_PCER (AT91_PMC + 0x10) /* Peripheral Clock Enable Register */
-#define AT91_PMC_PCDR (AT91_PMC + 0x14) /* Peripheral Clock Disable Register */
-#define AT91_PMC_PCSR (AT91_PMC + 0x18) /* Peripheral Clock Status Register */
+#define AT91_PMC_PCER 0x10 /* Peripheral Clock Enable Register */
+#define AT91_PMC_PCDR 0x14 /* Peripheral Clock Disable Register */
+#define AT91_PMC_PCSR 0x18 /* Peripheral Clock Status Register */
-#define AT91_CKGR_UCKR (AT91_PMC + 0x1C) /* UTMI Clock Register [some SAM9] */
+#define AT91_CKGR_UCKR 0x1C /* UTMI Clock Register [some SAM9] */
#define AT91_PMC_UPLLEN (1 << 16) /* UTMI PLL Enable */
#define AT91_PMC_UPLLCOUNT (0xf << 20) /* UTMI PLL Start-up Time */
#define AT91_PMC_BIASEN (1 << 24) /* UTMI BIAS Enable */
#define AT91_PMC_BIASCOUNT (0xf << 28) /* UTMI BIAS Start-up Time */
-#define AT91_CKGR_MOR (AT91_PMC + 0x20) /* Main Oscillator Register [not on SAM9RL] */
+#define AT91_CKGR_MOR 0x20 /* Main Oscillator Register [not on SAM9RL] */
#define AT91_PMC_MOSCEN (1 << 0) /* Main Oscillator Enable */
#define AT91_PMC_OSCBYPASS (1 << 1) /* Oscillator Bypass */
#define AT91_PMC_MOSCRCEN (1 << 3) /* Main On-Chip RC Oscillator Enable [some SAM9] */
@@ -53,12 +65,12 @@
#define AT91_PMC_MOSCSEL (1 << 24) /* Main Oscillator Selection [some SAM9] */
#define AT91_PMC_CFDEN (1 << 25) /* Clock Failure Detector Enable [some SAM9] */
-#define AT91_CKGR_MCFR (AT91_PMC + 0x24) /* Main Clock Frequency Register */
+#define AT91_CKGR_MCFR 0x24 /* Main Clock Frequency Register */
#define AT91_PMC_MAINF (0xffff << 0) /* Main Clock Frequency */
#define AT91_PMC_MAINRDY (1 << 16) /* Main Clock Ready */
-#define AT91_CKGR_PLLAR (AT91_PMC + 0x28) /* PLL A Register */
-#define AT91_CKGR_PLLBR (AT91_PMC + 0x2c) /* PLL B Register */
+#define AT91_CKGR_PLLAR 0x28 /* PLL A Register */
+#define AT91_CKGR_PLLBR 0x2c /* PLL B Register */
#define AT91_PMC_DIV (0xff << 0) /* Divider */
#define AT91_PMC_PLLCOUNT (0x3f << 8) /* PLL Counter */
#define AT91_PMC_OUT (3 << 14) /* PLL Clock Frequency Range */
@@ -69,7 +81,7 @@
#define AT91_PMC_USBDIV_4 (2 << 28)
#define AT91_PMC_USB96M (1 << 28) /* Divider by 2 Enable (PLLB only) */
-#define AT91_PMC_MCKR (AT91_PMC + 0x30) /* Master Clock Register */
+#define AT91_PMC_MCKR 0x30 /* Master Clock Register */
#define AT91_PMC_CSS (3 << 0) /* Master Clock Selection */
#define AT91_PMC_CSS_SLOW (0 << 0)
#define AT91_PMC_CSS_MAIN (1 << 0)
@@ -111,27 +123,27 @@
#define AT91_PMC_PLLADIV2_OFF (0 << 12)
#define AT91_PMC_PLLADIV2_ON (1 << 12)
-#define AT91_PMC_USB (AT91_PMC + 0x38) /* USB Clock Register [some SAM9 only] */
+#define AT91_PMC_USB 0x38 /* USB Clock Register [some SAM9 only] */
#define AT91_PMC_USBS (0x1 << 0) /* USB OHCI Input clock selection */
#define AT91_PMC_USBS_PLLA (0 << 0)
#define AT91_PMC_USBS_UPLL (1 << 0)
#define AT91_PMC_OHCIUSBDIV (0xF << 8) /* Divider for USB OHCI Clock */
-#define AT91_PMC_SMD (AT91_PMC + 0x3c) /* Soft Modem Clock Register [some SAM9 only] */
+#define AT91_PMC_SMD 0x3c /* Soft Modem Clock Register [some SAM9 only] */
#define AT91_PMC_SMDS (0x1 << 0) /* SMD input clock selection */
#define AT91_PMC_SMD_DIV (0x1f << 8) /* SMD input clock divider */
#define AT91_PMC_SMDDIV(n) (((n) << 8) & AT91_PMC_SMD_DIV)
-#define AT91_PMC_PCKR(n) (AT91_PMC + 0x40 + ((n) * 4)) /* Programmable Clock 0-N Registers */
+#define AT91_PMC_PCKR(n) (0x40 + ((n) * 4)) /* Programmable Clock 0-N Registers */
#define AT91_PMC_ALT_PCKR_CSS (0x7 << 0) /* Programmable Clock Source Selection [alternate length] */
#define AT91_PMC_CSS_MASTER (4 << 0) /* [some SAM9 only] */
#define AT91_PMC_CSSMCK (0x1 << 8) /* CSS or Master Clock Selection */
#define AT91_PMC_CSSMCK_CSS (0 << 8)
#define AT91_PMC_CSSMCK_MCK (1 << 8)
-#define AT91_PMC_IER (AT91_PMC + 0x60) /* Interrupt Enable Register */
-#define AT91_PMC_IDR (AT91_PMC + 0x64) /* Interrupt Disable Register */
-#define AT91_PMC_SR (AT91_PMC + 0x68) /* Status Register */
+#define AT91_PMC_IER 0x60 /* Interrupt Enable Register */
+#define AT91_PMC_IDR 0x64 /* Interrupt Disable Register */
+#define AT91_PMC_SR 0x68 /* Status Register */
#define AT91_PMC_MOSCS (1 << 0) /* MOSCS Flag */
#define AT91_PMC_LOCKA (1 << 1) /* PLLA Lock */
#define AT91_PMC_LOCKB (1 << 2) /* PLLB Lock */
@@ -144,18 +156,18 @@
#define AT91_PMC_MOSCSELS (1 << 16) /* Main Oscillator Selection [some SAM9] */
#define AT91_PMC_MOSCRCS (1 << 17) /* Main On-Chip RC [some SAM9] */
#define AT91_PMC_CFDEV (1 << 18) /* Clock Failure Detector Event [some SAM9] */
-#define AT91_PMC_IMR (AT91_PMC + 0x6c) /* Interrupt Mask Register */
+#define AT91_PMC_IMR 0x6c /* Interrupt Mask Register */
-#define AT91_PMC_PROT (AT91_PMC + 0xe4) /* Write Protect Mode Register [some SAM9] */
+#define AT91_PMC_PROT 0xe4 /* Write Protect Mode Register [some SAM9] */
#define AT91_PMC_WPEN (0x1 << 0) /* Write Protect Enable */
#define AT91_PMC_WPKEY (0xffffff << 8) /* Write Protect Key */
#define AT91_PMC_PROTKEY (0x504d43 << 8) /* Activation Code */
-#define AT91_PMC_WPSR (AT91_PMC + 0xe8) /* Write Protect Status Register [some SAM9] */
+#define AT91_PMC_WPSR 0xe8 /* Write Protect Status Register [some SAM9] */
#define AT91_PMC_WPVS (0x1 << 0) /* Write Protect Violation Status */
#define AT91_PMC_WPVSRC (0xffff << 8) /* Write Protect Violation Source */
-#define AT91_PMC_PCR (AT91_PMC + 0x10c) /* Peripheral Control Register [some SAM9] */
+#define AT91_PMC_PCR 0x10c /* Peripheral Control Register [some SAM9] */
#define AT91_PMC_PCR_PID (0x3f << 0) /* Peripheral ID */
#define AT91_PMC_PCR_CMD (0x1 << 12) /* Command */
#define AT91_PMC_PCR_DIV (0x3 << 16) /* Divisor Value */
diff --git a/arch/arm/mach-at91/include/mach/at91rm9200.h b/arch/arm/mach-at91/include/mach/at91rm9200.h
index 32d57be..603e6aa 100644
--- a/arch/arm/mach-at91/include/mach/at91rm9200.h
+++ b/arch/arm/mach-at91/include/mach/at91rm9200.h
@@ -77,10 +77,8 @@
/*
- * System Peripherals (offset from AT91_BASE_SYS)
+ * System Peripherals
*/
-#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS) /* Power Management Controller */
-
#define AT91RM9200_BASE_DBGU AT91_BASE_DBGU0 /* Debug Unit */
#define AT91RM9200_BASE_PIOA 0xfffff400 /* PIO Controller A */
#define AT91RM9200_BASE_PIOB 0xfffff600 /* PIO Controller B */
diff --git a/arch/arm/mach-at91/include/mach/at91sam9260.h b/arch/arm/mach-at91/include/mach/at91sam9260.h
index c5b6b3b..1524e87 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9260.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9260.h
@@ -80,7 +80,6 @@
/*
* System Peripherals (offset from AT91_BASE_SYS)
*/
-#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS)
#define AT91_GPBR (0xfffffd50 - AT91_BASE_SYS)
#define AT91SAM9260_BASE_ECC 0xffffe800
diff --git a/arch/arm/mach-at91/include/mach/at91sam9261.h b/arch/arm/mach-at91/include/mach/at91sam9261.h
index a269cef..a6a3c1d 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9261.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9261.h
@@ -65,7 +65,6 @@
/*
* System Peripherals (offset from AT91_BASE_SYS)
*/
-#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS)
#define AT91_GPBR (0xfffffd50 - AT91_BASE_SYS)
#define AT91SAM9261_BASE_SMC 0xffffec00
diff --git a/arch/arm/mach-at91/include/mach/at91sam9263.h b/arch/arm/mach-at91/include/mach/at91sam9263.h
index bccba0b..dda083d 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9263.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9263.h
@@ -74,7 +74,6 @@
/*
* System Peripherals (offset from AT91_BASE_SYS)
*/
-#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS)
#define AT91_GPBR (0xfffffd60 - AT91_BASE_SYS)
#define AT91SAM9263_BASE_ECC0 0xffffe000
diff --git a/arch/arm/mach-at91/include/mach/at91sam9g45.h b/arch/arm/mach-at91/include/mach/at91sam9g45.h
index dfc4570..a824e15 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9g45.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9g45.h
@@ -86,7 +86,6 @@
/*
* System Peripherals (offset from AT91_BASE_SYS)
*/
-#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS)
#define AT91_GPBR (0xfffffd60 - AT91_BASE_SYS)
#define AT91SAM9G45_BASE_ECC 0xffffe200
diff --git a/arch/arm/mach-at91/include/mach/at91sam9rl.h b/arch/arm/mach-at91/include/mach/at91sam9rl.h
index de960dc..2d7176a 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9rl.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9rl.h
@@ -69,7 +69,6 @@
/*
* System Peripherals (offset from AT91_BASE_SYS)
*/
-#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS)
#define AT91_SCKCR (0xfffffd50 - AT91_BASE_SYS)
#define AT91_GPBR (0xfffffd60 - AT91_BASE_SYS)
diff --git a/arch/arm/mach-at91/include/mach/at91sam9x5.h b/arch/arm/mach-at91/include/mach/at91sam9x5.h
index 96f25f5..a297a77 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9x5.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9x5.h
@@ -55,10 +55,9 @@
#define AT91SAM9X5_BASE_USART2 0xf8024000
/*
- * System Peripherals (offset from AT91_BASE_SYS)
+ * System Peripherals
*/
#define AT91SAM9X5_BASE_DDRSDRC0 0xffffe800
-#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS)
/*
* Base addresses for early serial code (uncompress.h)
diff --git a/arch/arm/mach-at91/include/mach/hardware.h b/arch/arm/mach-at91/include/mach/hardware.h
index fd7dce4..e9e29a6 100644
--- a/arch/arm/mach-at91/include/mach/hardware.h
+++ b/arch/arm/mach-at91/include/mach/hardware.h
@@ -59,9 +59,10 @@
/*
* On all at91 have the Advanced Interrupt Controller starts at address
- * 0xfffff000
+ * 0xfffff000 and the Power Management Controller starts at 0xfffffc00
*/
#define AT91_AIC 0xfffff000
+#define AT91_PMC 0xfffffc00
/*
* Peripheral identifiers/interrupts.
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 83a0051..44f4b08 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -136,7 +136,7 @@ static int at91_pm_verify_clocks(void)
unsigned long scsr;
int i;
- scsr = at91_sys_read(AT91_PMC_SCSR);
+ scsr = at91_pmc_read(AT91_PMC_SCSR);
/* USB must not be using PLLB */
if (cpu_is_at91rm9200()) {
@@ -160,7 +160,7 @@ static int at91_pm_verify_clocks(void)
if ((scsr & (AT91_PMC_PCK0 << i)) == 0)
continue;
- css = at91_sys_read(AT91_PMC_PCKR(i)) & AT91_PMC_CSS;
+ css = at91_pmc_read(AT91_PMC_PCKR(i)) & AT91_PMC_CSS;
if (css != AT91_PMC_CSS_SLOW) {
pr_err("AT91: PM - Suspend-to-RAM with PCK%d src %d\n", i, css);
return 0;
@@ -197,7 +197,6 @@ extern void at91_slow_clock(void __iomem *pmc, void __iomem *ramc0,
extern u32 at91_slow_clock_sz;
#endif
-static void __iomem *at91_pmc_base = (void __iomem*)(AT91_VA_BASE_SYS + AT91_PMC);
void __iomem *at91_ramc_base[2];
void __init at91_ioremap_ramc(int id, u32 addr, u32 size)
@@ -208,7 +207,7 @@ void __init at91_ioremap_ramc(int id, u32 addr, u32 size)
}
at91_ramc_base[id] = ioremap(addr, size);
if (!at91_ramc_base[id])
- pr_warn("Impossible to ioremap ramc.%d 0x%x\n", id, addr);
+ panic("Impossible to ioremap ramc.%d 0x%x\n", id, addr);
}
static int at91_pm_enter(suspend_state_t state)
@@ -218,7 +217,7 @@ static int at91_pm_enter(suspend_state_t state)
pr_debug("AT91: PM - wake mask %08x, pm state %d\n",
/* remember all the always-wake irqs */
- (at91_sys_read(AT91_PMC_PCSR)
+ (at91_pmc_read(AT91_PMC_PCSR)
| (1 << AT91_ID_FIQ)
| (1 << AT91_ID_SYS)
| (at91_extern_irq))
diff --git a/arch/arm/mach-at91/pm_slowclock.S b/arch/arm/mach-at91/pm_slowclock.S
index 17f4d72..abb9214 100644
--- a/arch/arm/mach-at91/pm_slowclock.S
+++ b/arch/arm/mach-at91/pm_slowclock.S
@@ -54,7 +54,7 @@
1: sub tmp2, tmp2, #1
cmp tmp2, #0
beq 2f
- ldr tmp1, [pmc, #(AT91_PMC_SR - AT91_PMC)]
+ ldr tmp1, [pmc, #AT91_PMC_SR]
tst tmp1, #AT91_PMC_MCKRDY
beq 1b
2:
@@ -68,7 +68,7 @@
1: sub tmp2, tmp2, #1
cmp tmp2, #0
beq 2f
- ldr tmp1, [pmc, #(AT91_PMC_SR - AT91_PMC)]
+ ldr tmp1, [pmc, #AT91_PMC_SR]
tst tmp1, #AT91_PMC_MOSCS
beq 1b
2:
@@ -82,7 +82,7 @@
1: sub tmp2, tmp2, #1
cmp tmp2, #0
beq 2f
- ldr tmp1, [pmc, #(AT91_PMC_SR - AT91_PMC)]
+ ldr tmp1, [pmc, #AT91_PMC_SR]
tst tmp1, #AT91_PMC_LOCKA
beq 1b
2:
@@ -96,7 +96,7 @@
1: sub tmp2, tmp2, #1
cmp tmp2, #0
beq 2f
- ldr tmp1, [pmc, #(AT91_PMC_SR - AT91_PMC)]
+ ldr tmp1, [pmc, #AT91_PMC_SR]
tst tmp1, #AT91_PMC_LOCKB
beq 1b
2:
@@ -176,14 +176,14 @@ sdr_sr_enable:
sdr_sr_done:
/* Save Master clock setting */
- ldr tmp1, [pmc, #(AT91_PMC_MCKR - AT91_PMC)]
+ ldr tmp1, [pmc, #AT91_PMC_MCKR]
str tmp1, .saved_mckr
/*
* Set the Master clock source to slow clock
*/
bic tmp1, tmp1, #AT91_PMC_CSS
- str tmp1, [pmc, #(AT91_PMC_MCKR - AT91_PMC)]
+ str tmp1, [pmc, #AT91_PMC_MCKR]
wait_mckrdy
@@ -194,44 +194,44 @@ sdr_sr_done:
* See AT91RM9200 errata #27 and #28 for details.
*/
mov tmp1, #0
- str tmp1, [pmc, #(AT91_PMC_MCKR - AT91_PMC)]
+ str tmp1, [pmc, #AT91_PMC_MCKR]
wait_mckrdy
#endif
/* Save PLLA setting and disable it */
- ldr tmp1, [pmc, #(AT91_CKGR_PLLAR - AT91_PMC)]
+ ldr tmp1, [pmc, #AT91_CKGR_PLLAR]
str tmp1, .saved_pllar
mov tmp1, #AT91_PMC_PLLCOUNT
orr tmp1, tmp1, #(1 << 29) /* bit 29 always set */
- str tmp1, [pmc, #(AT91_CKGR_PLLAR - AT91_PMC)]
+ str tmp1, [pmc, #AT91_CKGR_PLLAR]
/* Save PLLB setting and disable it */
- ldr tmp1, [pmc, #(AT91_CKGR_PLLBR - AT91_PMC)]
+ ldr tmp1, [pmc, #AT91_CKGR_PLLBR]
str tmp1, .saved_pllbr
mov tmp1, #AT91_PMC_PLLCOUNT
- str tmp1, [pmc, #(AT91_CKGR_PLLBR - AT91_PMC)]
+ str tmp1, [pmc, #AT91_CKGR_PLLBR]
/* Turn off the main oscillator */
- ldr tmp1, [pmc, #(AT91_CKGR_MOR - AT91_PMC)]
+ ldr tmp1, [pmc, #AT91_CKGR_MOR]
bic tmp1, tmp1, #AT91_PMC_MOSCEN
- str tmp1, [pmc, #(AT91_CKGR_MOR - AT91_PMC)]
+ str tmp1, [pmc, #AT91_CKGR_MOR]
/* Wait for interrupt */
mcr p15, 0, tmp1, c7, c0, 4
/* Turn on the main oscillator */
- ldr tmp1, [pmc, #(AT91_CKGR_MOR - AT91_PMC)]
+ ldr tmp1, [pmc, #AT91_CKGR_MOR]
orr tmp1, tmp1, #AT91_PMC_MOSCEN
- str tmp1, [pmc, #(AT91_CKGR_MOR - AT91_PMC)]
+ str tmp1, [pmc, #AT91_CKGR_MOR]
wait_moscrdy
/* Restore PLLB setting */
ldr tmp1, .saved_pllbr
- str tmp1, [pmc, #(AT91_CKGR_PLLBR - AT91_PMC)]
+ str tmp1, [pmc, #AT91_CKGR_PLLBR]
tst tmp1, #(AT91_PMC_MUL & 0xff0000)
bne 1f
@@ -243,7 +243,7 @@ sdr_sr_done:
/* Restore PLLA setting */
ldr tmp1, .saved_pllar
- str tmp1, [pmc, #(AT91_CKGR_PLLAR - AT91_PMC)]
+ str tmp1, [pmc, #AT91_CKGR_PLLAR]
tst tmp1, #(AT91_PMC_MUL & 0xff0000)
bne 3f
@@ -264,7 +264,7 @@ sdr_sr_done:
tst tmp1, #AT91_PMC_PRES
beq 2f
and tmp1, tmp1, #AT91_PMC_PRES
- str tmp1, [pmc, #(AT91_PMC_MCKR - AT91_PMC)]
+ str tmp1, [pmc, #AT91_PMC_MCKR]
wait_mckrdy
#endif
@@ -273,7 +273,7 @@ sdr_sr_done:
* Restore master clock setting
*/
2: ldr tmp1, .saved_mckr
- str tmp1, [pmc, #(AT91_PMC_MCKR - AT91_PMC)]
+ str tmp1, [pmc, #AT91_PMC_MCKR]
wait_mckrdy
diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c
index e2fb6d5..ce9dffb 100644
--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -332,12 +332,12 @@ static int vbus_is_present(struct usba_udc *udc)
static void toggle_bias(int is_on)
{
- unsigned int uckr = at91_sys_read(AT91_CKGR_UCKR);
+ unsigned int uckr = at91_pmc_read(AT91_CKGR_UCKR);
if (is_on)
- at91_sys_write(AT91_CKGR_UCKR, uckr | AT91_PMC_BIASEN);
+ at91_pmc_write(AT91_CKGR_UCKR, uckr | AT91_PMC_BIASEN);
else
- at91_sys_write(AT91_CKGR_UCKR, uckr & ~(AT91_PMC_BIASEN));
+ at91_pmc_write(AT91_CKGR_UCKR, uckr & ~(AT91_PMC_BIASEN));
}
#else
--
1.7.9
--
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