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authorMarek Vasut <marek.vasut@gmail.com>2010-09-09 09:50:39 +0200
committerWolfgang Denk <wd@denx.de>2010-10-19 22:46:22 +0200
commit3ba8bf7c6d6c09b9823b08b03d2d155907313238 (patch)
treedcb9243cd47eb640e306ba6eba658e14b7429809 /arch/arm/cpu/pxa
parent9f80a20e05f20ab6b20be3addee969e1306ee3d5 (diff)
downloadu-boot-linaro-stable-3ba8bf7c6d6c09b9823b08b03d2d155907313238.tar.gz
PXA: pxa-regs.h cleanup
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Diffstat (limited to 'arch/arm/cpu/pxa')
-rw-r--r--arch/arm/cpu/pxa/cpu.c28
-rw-r--r--arch/arm/cpu/pxa/i2c.c69
-rw-r--r--arch/arm/cpu/pxa/pxafb.c64
-rw-r--r--arch/arm/cpu/pxa/timer.c7
-rw-r--r--arch/arm/cpu/pxa/usb.c61
5 files changed, 123 insertions, 106 deletions
diff --git a/arch/arm/cpu/pxa/cpu.c b/arch/arm/cpu/pxa/cpu.c
index 800d120e7..330d013c6 100644
--- a/arch/arm/cpu/pxa/cpu.c
+++ b/arch/arm/cpu/pxa/cpu.c
@@ -30,10 +30,11 @@
* CPU specific code
*/
-#include <common.h>
-#include <command.h>
#include <asm/arch/pxa-regs.h>
+#include <asm/io.h>
#include <asm/system.h>
+#include <command.h>
+#include <common.h>
static void cache_flush(void);
@@ -71,17 +72,22 @@ void set_GPIO_mode(int gpio_mode)
{
int gpio = gpio_mode & GPIO_MD_MASK_NR;
int fn = (gpio_mode & GPIO_MD_MASK_FN) >> 8;
- int gafr;
+ int val;
+
+ /* This below changes direction setting of GPIO "gpio" */
+ val = readl(GPDR(gpio));
if (gpio_mode & GPIO_MD_MASK_DIR)
- {
- GPDR(gpio) |= GPIO_bit(gpio);
- }
+ val |= GPIO_bit(gpio);
else
- {
- GPDR(gpio) &= ~GPIO_bit(gpio);
- }
- gafr = GAFR(gpio) & ~(0x3 << (((gpio) & 0xf)*2));
- GAFR(gpio) = gafr | (fn << (((gpio) & 0xf)*2));
+ val &= ~GPIO_bit(gpio);
+
+ writel(val, GPDR(gpio));
+
+ /* This below updates only AF of GPIO "gpio" */
+ val = readl(GAFR(gpio));
+ val &= ~(0x3 << (((gpio) & 0xf) * 2));
+ val |= fn << (((gpio) & 0xf) * 2);
+ writel(val, GAFR(gpio));
}
#endif /* CONFIG_CPU_MONAHANS */
diff --git a/arch/arm/cpu/pxa/i2c.c b/arch/arm/cpu/pxa/i2c.c
index 6b72ba13a..7aa49ae4a 100644
--- a/arch/arm/cpu/pxa/i2c.c
+++ b/arch/arm/cpu/pxa/i2c.c
@@ -33,6 +33,7 @@
/* FIXME: this file is PXA255 specific! What about other XScales? */
#include <common.h>
+#include <asm/io.h>
#ifdef CONFIG_HARD_I2C
@@ -93,19 +94,21 @@ struct i2c_msg {
static void i2c_reset( void )
{
- ICR &= ~ICR_IUE; /* disable unit */
- ICR |= ICR_UR; /* reset the unit */
+ writel(readl(ICR) & ~ICR_IUE, ICR); /* disable unit */
+ writel(readl(ICR) | ICR_UR, ICR); /* reset the unit */
udelay(100);
- ICR &= ~ICR_IUE; /* disable unit */
+ writel(readl(ICR) & ~ICR_IUE, ICR); /* disable unit */
#ifdef CONFIG_CPU_MONAHANS
- CKENB |= (CKENB_4_I2C); /* | CKENB_1_PWM1 | CKENB_0_PWM0); */
+ /* | CKENB_1_PWM1 | CKENB_0_PWM0); */
+ writel(readl(CKENB) | (CKENB_4_I2C), CKENB);
#else /* CONFIG_CPU_MONAHANS */
- CKEN |= CKEN14_I2C; /* set the global I2C clock on */
+ /* set the global I2C clock on */
+ writel(readl(CKEN) | CKEN14_I2C, CKEN);
#endif
- ISAR = I2C_PXA_SLAVE_ADDR; /* set our slave address */
- ICR = I2C_ICR_INIT; /* set control register values */
- ISR = I2C_ISR_INIT; /* set clear interrupt bits */
- ICR |= ICR_IUE; /* enable unit */
+ writel(I2C_PXA_SLAVE_ADDR, ISAR); /* set our slave address */
+ writel(I2C_ICR_INIT, ICR); /* set control reg values */
+ writel(I2C_ISR_INIT, ISR); /* set clear interrupt bits */
+ writel(readl(ICR) | ICR_IUE, ICR); /* enable unit */
udelay(100);
}
@@ -159,22 +162,26 @@ int i2c_transfer(struct i2c_msg *msg)
goto transfer_error_bus_busy;
/* start transmission */
- ICR &= ~ICR_START;
- ICR &= ~ICR_STOP;
- IDBR = msg->data;
- if (msg->condition == I2C_COND_START) ICR |= ICR_START;
- if (msg->condition == I2C_COND_STOP) ICR |= ICR_STOP;
- if (msg->acknack == I2C_ACKNAK_SENDNAK) ICR |= ICR_ACKNAK;
- if (msg->acknack == I2C_ACKNAK_SENDACK) ICR &= ~ICR_ACKNAK;
- ICR &= ~ICR_ALDIE;
- ICR |= ICR_TB;
+ writel(readl(ICR) & ~ICR_START, ICR);
+ writel(readl(ICR) & ~ICR_STOP, ICR);
+ writel(msg->data, IDBR);
+ if (msg->condition == I2C_COND_START)
+ writel(readl(ICR) | ICR_START, ICR);
+ if (msg->condition == I2C_COND_STOP)
+ writel(readl(ICR) | ICR_STOP, ICR);
+ if (msg->acknack == I2C_ACKNAK_SENDNAK)
+ writel(readl(ICR) | ICR_ACKNAK, ICR);
+ if (msg->acknack == I2C_ACKNAK_SENDACK)
+ writel(readl(ICR) & ~ICR_ACKNAK, ICR);
+ writel(readl(ICR) & ~ICR_ALDIE, ICR);
+ writel(readl(ICR) | ICR_TB, ICR);
/* transmit register empty? */
if (!i2c_isr_set_cleared(ISR_ITE,0))
goto transfer_error_transmit_timeout;
/* clear 'transmit empty' state */
- ISR |= ISR_ITE;
+ writel(readl(ISR) | ISR_ITE, ISR);
/* wait for ACK from slave */
if (msg->acknack == I2C_ACKNAK_WAITACK)
@@ -189,23 +196,27 @@ int i2c_transfer(struct i2c_msg *msg)
goto transfer_error_bus_busy;
/* start receive */
- ICR &= ~ICR_START;
- ICR &= ~ICR_STOP;
- if (msg->condition == I2C_COND_START) ICR |= ICR_START;
- if (msg->condition == I2C_COND_STOP) ICR |= ICR_STOP;
- if (msg->acknack == I2C_ACKNAK_SENDNAK) ICR |= ICR_ACKNAK;
- if (msg->acknack == I2C_ACKNAK_SENDACK) ICR &= ~ICR_ACKNAK;
- ICR &= ~ICR_ALDIE;
- ICR |= ICR_TB;
+ writel(readl(ICR) & ~ICR_START, ICR);
+ writel(readl(ICR) & ~ICR_STOP, ICR);
+ if (msg->condition == I2C_COND_START)
+ writel(readl(ICR) | ICR_START, ICR);
+ if (msg->condition == I2C_COND_STOP)
+ writel(readl(ICR) | ICR_STOP, ICR);
+ if (msg->acknack == I2C_ACKNAK_SENDNAK)
+ writel(readl(ICR) | ICR_ACKNAK, ICR);
+ if (msg->acknack == I2C_ACKNAK_SENDACK)
+ writel(readl(ICR) & ~ICR_ACKNAK, ICR);
+ writel(readl(ICR) & ~ICR_ALDIE, ICR);
+ writel(readl(ICR) | ICR_TB, ICR);
/* receive register full? */
if (!i2c_isr_set_cleared(ISR_IRF,0))
goto transfer_error_receive_timeout;
- msg->data = IDBR;
+ msg->data = readl(IDBR);
/* clear 'receive empty' state */
- ISR |= ISR_IRF;
+ writel(readl(ISR) | ISR_IRF, ISR);
break;
diff --git a/arch/arm/cpu/pxa/pxafb.c b/arch/arm/cpu/pxa/pxafb.c
index 50e9cc0b2..cb004b262 100644
--- a/arch/arm/cpu/pxa/pxafb.c
+++ b/arch/arm/cpu/pxa/pxafb.c
@@ -35,6 +35,7 @@
#include <stdio_dev.h>
#include <lcd.h>
#include <asm/arch/pxa-regs.h>
+#include <asm/io.h>
/* #define DEBUG */
@@ -377,12 +378,14 @@ static void pxafb_setup_gpio (vidinfo_t *vid)
{
debug("Setting GPIO for 4 bit data\n");
/* bits 58-61 */
- GPDR1 |= (0xf << 26);
- GAFR1_U = (GAFR1_U & ~(0xff << 20)) | (0xaa << 20);
+ writel(readl(GPDR1) | (0xf << 26), GPDR1);
+ writel((readl(GAFR1_U) & ~(0xff << 20)) | (0xaa << 20),
+ GAFR1_U);
/* bits 74-77 */
- GPDR2 |= (0xf << 10);
- GAFR2_L = (GAFR2_L & ~(0xff << 20)) | (0xaa << 20);
+ writel(readl(GPDR2) | (0xf << 10), GPDR2);
+ writel((readl(GAFR2_L) & ~(0xff << 20)) | (0xaa << 20),
+ GAFR2_L);
}
/* 8 bit interface */
@@ -391,15 +394,17 @@ static void pxafb_setup_gpio (vidinfo_t *vid)
{
debug("Setting GPIO for 8 bit data\n");
/* bits 58-65 */
- GPDR1 |= (0x3f << 26);
- GPDR2 |= (0x3);
+ writel(readl(GPDR1) | (0x3f << 26), GPDR1);
+ writel(readl(GPDR2) | (0x3), GPDR2);
- GAFR1_U = (GAFR1_U & ~(0xfff << 20)) | (0xaaa << 20);
- GAFR2_L = (GAFR2_L & ~0xf) | (0xa);
+ writel((readl(GAFR1_U) & ~(0xfff << 20)) | (0xaaa << 20),
+ GAFR1_U);
+ writel((readl(GAFR2_L) & ~0xf) | (0xa), GAFR2_L);
/* bits 74-77 */
- GPDR2 |= (0xf << 10);
- GAFR2_L = (GAFR2_L & ~(0xff << 20)) | (0xaa << 20);
+ writel(readl(GPDR2) | (0xf << 10), GPDR2);
+ writel((readl(GAFR2_L) & ~(0xff << 20)) | (0xaa << 20),
+ GAFR2_L);
}
/* 16 bit interface */
@@ -407,11 +412,12 @@ static void pxafb_setup_gpio (vidinfo_t *vid)
{
debug("Setting GPIO for 16 bit data\n");
/* bits 58-77 */
- GPDR1 |= (0x3f << 26);
- GPDR2 |= 0x00003fff;
+ writel(readl(GPDR1) | (0x3f << 26), GPDR1);
+ writel(readl(GPDR2) | 0x00003fff, GPDR2);
- GAFR1_U = (GAFR1_U & ~(0xfff << 20)) | (0xaaa << 20);
- GAFR2_L = (GAFR2_L & 0xf0000000) | 0x0aaaaaaa;
+ writel((readl(GAFR1_U) & ~(0xfff << 20)) | (0xaaa << 20),
+ GAFR1_U);
+ writel((readl(GAFR2_L) & 0xf0000000) | 0x0aaaaaaa, GAFR2_L);
}
else
{
@@ -425,26 +431,26 @@ static void pxafb_enable_controller (vidinfo_t *vid)
debug("Enabling LCD controller\n");
/* Sequence from 11.7.10 */
- LCCR3 = vid->pxa.reg_lccr3;
- LCCR2 = vid->pxa.reg_lccr2;
- LCCR1 = vid->pxa.reg_lccr1;
- LCCR0 = vid->pxa.reg_lccr0 & ~LCCR0_ENB;
- FDADR0 = vid->pxa.fdadr0;
- FDADR1 = vid->pxa.fdadr1;
- LCCR0 |= LCCR0_ENB;
+ writel(vid->pxa.reg_lccr3, LCCR3);
+ writel(vid->pxa.reg_lccr2, LCCR2);
+ writel(vid->pxa.reg_lccr1, LCCR1);
+ writel(vid->pxa.reg_lccr0 & ~LCCR0_ENB, LCCR0);
+ writel(vid->pxa.fdadr0, FDADR0);
+ writel(vid->pxa.fdadr1, FDADR1);
+ writel(readl(LCCR0) | LCCR0_ENB, LCCR0);
#ifdef CONFIG_CPU_MONAHANS
- CKENA |= CKENA_1_LCD;
+ writel(readl(CKENA) | CKENA_1_LCD, CKENA);
#else
- CKEN |= CKEN16_LCD;
+ writel(readl(CKEN) | CKEN16_LCD, CKEN);
#endif
- debug("FDADR0 = 0x%08x\n", (unsigned int)FDADR0);
- debug("FDADR1 = 0x%08x\n", (unsigned int)FDADR1);
- debug("LCCR0 = 0x%08x\n", (unsigned int)LCCR0);
- debug("LCCR1 = 0x%08x\n", (unsigned int)LCCR1);
- debug("LCCR2 = 0x%08x\n", (unsigned int)LCCR2);
- debug("LCCR3 = 0x%08x\n", (unsigned int)LCCR3);
+ debug("FDADR0 = 0x%08x\n", readl(FDADR0));
+ debug("FDADR1 = 0x%08x\n", readl(FDADR1));
+ debug("LCCR0 = 0x%08x\n", readl(LCCR0));
+ debug("LCCR1 = 0x%08x\n", readl(LCCR1));
+ debug("LCCR2 = 0x%08x\n", readl(LCCR2));
+ debug("LCCR3 = 0x%08x\n", readl(LCCR3));
}
static int pxafb_init (vidinfo_t *vid)
diff --git a/arch/arm/cpu/pxa/timer.c b/arch/arm/cpu/pxa/timer.c
index 8d0f82679..ec950c796 100644
--- a/arch/arm/cpu/pxa/timer.c
+++ b/arch/arm/cpu/pxa/timer.c
@@ -26,8 +26,9 @@
* MA 02111-1307 USA
*/
-#include <common.h>
#include <asm/arch/pxa-regs.h>
+#include <asm/io.h>
+#include <common.h>
#include <div64.h>
#ifdef CONFIG_USE_IRQ
@@ -86,7 +87,7 @@ void __udelay (unsigned long usec)
void reset_timer_masked (void)
{
- OSCR = 0;
+ writel(0, OSCR);
}
ulong get_timer_masked (void)
@@ -113,7 +114,7 @@ void udelay_masked (unsigned long usec)
*/
unsigned long long get_ticks(void)
{
- return OSCR;
+ return readl(OSCR);
}
/*
diff --git a/arch/arm/cpu/pxa/usb.c b/arch/arm/cpu/pxa/usb.c
index bd718a6ff..0311d5e99 100644
--- a/arch/arm/cpu/pxa/usb.c
+++ b/arch/arm/cpu/pxa/usb.c
@@ -27,86 +27,79 @@
# if defined(CONFIG_CPU_MONAHANS) || defined(CONFIG_PXA27X)
#include <asm/arch/pxa-regs.h>
+#include <asm/io.h>
#include <usb.h>
int usb_cpu_init(void)
{
#if defined(CONFIG_CPU_MONAHANS)
/* Enable USB host clock. */
- CKENA |= (CKENA_2_USBHOST | CKENA_20_UDC);
+ writel(readl(CKENA) | CKENA_2_USBHOST | CKENA_20_UDC, CKENA);
udelay(100);
#endif
#if defined(CONFIG_PXA27X)
/* Enable USB host clock. */
- CKEN |= CKEN10_USBHOST;
+ writel(readl(CKEN) | CKEN10_USBHOST, CKEN);
#endif
#if defined(CONFIG_CPU_MONAHANS)
/* Configure Port 2 for Host (USB Client Registers) */
- UP2OCR = 0x3000c;
+ writel(0x3000c, UP2OCR);
#endif
- UHCHR |= UHCHR_FHR;
+ writel(readl(UHCHR) | UHCHR_FHR, UHCHR);
wait_ms(11);
- UHCHR &= ~UHCHR_FHR;
+ writel(readl(UHCHR) & ~UHCHR_FHR, UHCHR);
- UHCHR |= UHCHR_FSBIR;
- while (UHCHR & UHCHR_FSBIR)
+ writel(readl(UHCHR) | UHCHR_FSBIR, UHCHR);
+ while (readl(UHCHR) & UHCHR_FSBIR)
udelay(1);
#if defined(CONFIG_CPU_MONAHANS)
- UHCHR &= ~UHCHR_SSEP0;
+ writel(readl(UHCHR) & ~UHCHR_SSEP0, UHCHR);
#endif
#if defined(CONFIG_PXA27X)
- UHCHR &= ~UHCHR_SSEP2;
+ writel(readl(UHCHR) & ~UHCHR_SSEP2, UHCHR);
#endif
- UHCHR &= ~UHCHR_SSEP1;
- UHCHR &= ~UHCHR_SSE;
+ writel(readl(UHCHR) & ~(UHCHR_SSEP1 | UHCHR_SSE), UHCHR);
return 0;
}
int usb_cpu_stop(void)
{
- UHCHR |= UHCHR_FHR;
+ writel(readl(UHCHR) | UHCHR_FHR, UHCHR);
udelay(11);
- UHCHR &= ~UHCHR_FHR;
+ writel(readl(UHCHR) & ~UHCHR_FHR, UHCHR);
- UHCCOMS |= 1;
+ writel(readl(UHCCOMS) | UHCHR_FHR, UHCCOMS);
udelay(10);
#if defined(CONFIG_CPU_MONAHANS)
- UHCHR |= UHCHR_SSEP0;
+ writel(readl(UHCHR) | UHCHR_SSEP0, UHCHR);
#endif
#if defined(CONFIG_PXA27X)
- UHCHR |= UHCHR_SSEP2;
+ writel(readl(UHCHR) | UHCHR_SSEP2, UHCHR);
#endif
- UHCHR |= UHCHR_SSEP1;
- UHCHR |= UHCHR_SSE;
-
- return 0;
-}
-
-int usb_cpu_init_fail(void)
-{
- UHCHR |= UHCHR_FHR;
- udelay(11);
- UHCHR &= ~UHCHR_FHR;
-
- UHCCOMS |= 1;
- udelay(10);
+ writel(readl(UHCHR) | UHCHR_SSEP1 | UHCHR_SSE, UHCHR);
#if defined(CONFIG_CPU_MONAHANS)
- UHCHR |= UHCHR_SSEP0;
+ /* Disable USB host clock. */
+ writel(readl(CKENA) & ~(CKENA_2_USBHOST | CKENA_20_UDC), CKENA);
+ udelay(100);
#endif
#if defined(CONFIG_PXA27X)
- UHCHR |= UHCHR_SSEP2;
+ /* Disable USB host clock. */
+ writel(readl(CKEN) & ~CKEN10_USBHOST, CKEN);
#endif
- UHCHR |= UHCHR_SSEP1;
- UHCHR |= UHCHR_SSE;
return 0;
}
+int usb_cpu_init_fail(void)
+{
+ return usb_cpu_stop();
+}
+
# endif /* defined(CONFIG_CPU_MONAHANS) || defined(CONFIG_PXA27X) */
#endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */