[U-Boot] [PATCH v 3/5] omap: reuse omap3 gpio support in omap4
Aneesh V
aneesh at ti.com
Sat Jul 16 18:25:36 CEST 2011
Signed-off-by: Aneesh V <aneesh at ti.com>
---
arch/arm/cpu/armv7/omap-common/Makefile | 1 +
arch/arm/cpu/armv7/{omap3 => omap-common}/gpio.c | 41 ++++------
arch/arm/cpu/armv7/omap3/Makefile | 1 -
arch/arm/cpu/armv7/omap3/board.c | 12 +++
arch/arm/cpu/armv7/omap4/board.c | 12 +++
arch/arm/cpu/armv7/omap4/clocks.c | 2 +-
arch/arm/include/asm/arch-omap3/cpu.h | 26 +++++++
arch/arm/include/asm/arch-omap3/gpio.h | 86 ----------------------
arch/arm/include/asm/arch-omap4/cpu.h | 26 +++++++
arch/arm/include/asm/arch-omap4/omap4.h | 8 ++
10 files changed, 102 insertions(+), 113 deletions(-)
rename arch/arm/cpu/armv7/{omap3 => omap-common}/gpio.c (76%)
delete mode 100644 arch/arm/include/asm/arch-omap3/gpio.h
diff --git a/arch/arm/cpu/armv7/omap-common/Makefile b/arch/arm/cpu/armv7/omap-common/Makefile
index 0708796..ea9f8ec 100644
--- a/arch/arm/cpu/armv7/omap-common/Makefile
+++ b/arch/arm/cpu/armv7/omap-common/Makefile
@@ -29,6 +29,7 @@ SOBJS := reset.o
COBJS := timer.o
COBJS += utils.o
+COBJS += gpio.o
ifdef CONFIG_SPL_BUILD
COBJS += spl.o
diff --git a/arch/arm/cpu/armv7/omap3/gpio.c b/arch/arm/cpu/armv7/omap-common/gpio.c
similarity index 76%
rename from arch/arm/cpu/armv7/omap3/gpio.c
rename to arch/arm/cpu/armv7/omap-common/gpio.c
index aeb6066..f4c3479 100644
--- a/arch/arm/cpu/armv7/omap3/gpio.c
+++ b/arch/arm/cpu/armv7/omap-common/gpio.c
@@ -36,24 +36,13 @@
* published by the Free Software Foundation.
*/
#include <common.h>
-#include <asm/arch/gpio.h>
+#include <asm/omap_gpio.h>
#include <asm/io.h>
#include <asm/errno.h>
-static struct gpio_bank gpio_bank_34xx[6] = {
- { (void *)OMAP34XX_GPIO1_BASE, METHOD_GPIO_24XX },
- { (void *)OMAP34XX_GPIO2_BASE, METHOD_GPIO_24XX },
- { (void *)OMAP34XX_GPIO3_BASE, METHOD_GPIO_24XX },
- { (void *)OMAP34XX_GPIO4_BASE, METHOD_GPIO_24XX },
- { (void *)OMAP34XX_GPIO5_BASE, METHOD_GPIO_24XX },
- { (void *)OMAP34XX_GPIO6_BASE, METHOD_GPIO_24XX },
-};
-
-static struct gpio_bank *gpio_bank = &gpio_bank_34xx[0];
-
-static inline struct gpio_bank *get_gpio_bank(int gpio)
+static inline const struct gpio_bank *get_gpio_bank(int gpio)
{
- return &gpio_bank[gpio >> 5];
+ return &omap_gpio_bank[gpio >> 5];
}
static inline int get_gpio_index(int gpio)
@@ -79,14 +68,15 @@ static int check_gpio(int gpio)
return 0;
}
-static void _set_gpio_direction(struct gpio_bank *bank, int gpio, int is_input)
+static void _set_gpio_direction(const struct gpio_bank *bank, int gpio,
+ int is_input)
{
void *reg = bank->base;
u32 l;
switch (bank->method) {
case METHOD_GPIO_24XX:
- reg += OMAP24XX_GPIO_OE;
+ reg += OMAP_GPIO_OE;
break;
default:
return;
@@ -101,7 +91,7 @@ static void _set_gpio_direction(struct gpio_bank *bank, int gpio, int is_input)
void omap_set_gpio_direction(int gpio, int is_input)
{
- struct gpio_bank *bank;
+ const struct gpio_bank *bank;
if (check_gpio(gpio) < 0)
return;
@@ -109,7 +99,8 @@ void omap_set_gpio_direction(int gpio, int is_input)
_set_gpio_direction(bank, get_gpio_index(gpio), is_input);
}
-static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable)
+static void _set_gpio_dataout(const struct gpio_bank *bank, int gpio,
+ int enable)
{
void *reg = bank->base;
u32 l = 0;
@@ -117,9 +108,9 @@ static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable)
switch (bank->method) {
case METHOD_GPIO_24XX:
if (enable)
- reg += OMAP24XX_GPIO_SETDATAOUT;
+ reg += OMAP_GPIO_SETDATAOUT;
else
- reg += OMAP24XX_GPIO_CLEARDATAOUT;
+ reg += OMAP_GPIO_CLEARDATAOUT;
l = 1 << gpio;
break;
default:
@@ -132,7 +123,7 @@ static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable)
void omap_set_gpio_dataout(int gpio, int enable)
{
- struct gpio_bank *bank;
+ const struct gpio_bank *bank;
if (check_gpio(gpio) < 0)
return;
@@ -142,7 +133,7 @@ void omap_set_gpio_dataout(int gpio, int enable)
int omap_get_gpio_datain(int gpio)
{
- struct gpio_bank *bank;
+ const struct gpio_bank *bank;
void *reg;
if (check_gpio(gpio) < 0)
@@ -151,7 +142,7 @@ int omap_get_gpio_datain(int gpio)
reg = bank->base;
switch (bank->method) {
case METHOD_GPIO_24XX:
- reg += OMAP24XX_GPIO_DATAIN;
+ reg += OMAP_GPIO_DATAIN;
break;
default:
return -EINVAL;
@@ -160,7 +151,7 @@ int omap_get_gpio_datain(int gpio)
& (1 << get_gpio_index(gpio))) != 0;
}
-static void _reset_gpio(struct gpio_bank *bank, int gpio)
+static void _reset_gpio(const struct gpio_bank *bank, int gpio)
{
_set_gpio_direction(bank, get_gpio_index(gpio), 1);
}
@@ -175,7 +166,7 @@ int omap_request_gpio(int gpio)
void omap_free_gpio(int gpio)
{
- struct gpio_bank *bank;
+ const struct gpio_bank *bank;
if (check_gpio(gpio) < 0)
return;
diff --git a/arch/arm/cpu/armv7/omap3/Makefile b/arch/arm/cpu/armv7/omap3/Makefile
index 522bcd2..8e85891 100644
--- a/arch/arm/cpu/armv7/omap3/Makefile
+++ b/arch/arm/cpu/armv7/omap3/Makefile
@@ -29,7 +29,6 @@ SOBJS := lowlevel_init.o
COBJS += board.o
COBJS += clock.o
-COBJS += gpio.o
COBJS += mem.o
COBJS += sys_info.o
diff --git a/arch/arm/cpu/armv7/omap3/board.c b/arch/arm/cpu/armv7/omap3/board.c
index 98519a9..4aaf97b 100644
--- a/arch/arm/cpu/armv7/omap3/board.c
+++ b/arch/arm/cpu/armv7/omap3/board.c
@@ -38,12 +38,24 @@
#include <asm/arch/mem.h>
#include <asm/cache.h>
#include <asm/armv7.h>
+#include <asm/omap_gpio.h>
/* Declarations */
extern omap3_sysinfo sysinfo;
static void omap3_setup_aux_cr(void);
static void omap3_invalidate_l2_cache_secure(void);
+static const struct gpio_bank gpio_bank_34xx[6] = {
+ { (void *)OMAP34XX_GPIO1_BASE, METHOD_GPIO_24XX },
+ { (void *)OMAP34XX_GPIO2_BASE, METHOD_GPIO_24XX },
+ { (void *)OMAP34XX_GPIO3_BASE, METHOD_GPIO_24XX },
+ { (void *)OMAP34XX_GPIO4_BASE, METHOD_GPIO_24XX },
+ { (void *)OMAP34XX_GPIO5_BASE, METHOD_GPIO_24XX },
+ { (void *)OMAP34XX_GPIO6_BASE, METHOD_GPIO_24XX },
+};
+
+const struct gpio_bank *const omap_gpio_bank = gpio_bank_34xx;
+
/******************************************************************************
* Routine: delay
* Description: spinning delay to use before udelay works
diff --git a/arch/arm/cpu/armv7/omap4/board.c b/arch/arm/cpu/armv7/omap4/board.c
index 17e731a..3c61b1c 100644
--- a/arch/arm/cpu/armv7/omap4/board.c
+++ b/arch/arm/cpu/armv7/omap4/board.c
@@ -33,12 +33,24 @@
#include <asm/arch/sys_proto.h>
#include <asm/sizes.h>
#include <asm/arch/emif.h>
+#include <asm/omap_gpio.h>
#include "omap4_mux_data.h"
DECLARE_GLOBAL_DATA_PTR;
u32 *const omap4_revision = (u32 *)OMAP4_SRAM_SCRATCH_OMAP4_REV;
+static const struct gpio_bank gpio_bank_44xx[6] = {
+ { (void *)OMAP44XX_GPIO1_BASE, METHOD_GPIO_24XX },
+ { (void *)OMAP44XX_GPIO2_BASE, METHOD_GPIO_24XX },
+ { (void *)OMAP44XX_GPIO3_BASE, METHOD_GPIO_24XX },
+ { (void *)OMAP44XX_GPIO4_BASE, METHOD_GPIO_24XX },
+ { (void *)OMAP44XX_GPIO5_BASE, METHOD_GPIO_24XX },
+ { (void *)OMAP44XX_GPIO6_BASE, METHOD_GPIO_24XX },
+};
+
+const struct gpio_bank *const omap_gpio_bank = gpio_bank_44xx;
+
#ifdef CONFIG_SPL_BUILD
/*
* We use static variables because global data is not ready yet.
diff --git a/arch/arm/cpu/armv7/omap4/clocks.c b/arch/arm/cpu/armv7/omap4/clocks.c
index f1e233a..660b329 100644
--- a/arch/arm/cpu/armv7/omap4/clocks.c
+++ b/arch/arm/cpu/armv7/omap4/clocks.c
@@ -830,9 +830,9 @@ void prcm_init(void)
case OMAP_INIT_CONTEXT_SPL:
case OMAP_INIT_CONTEXT_UBOOT_FROM_NOR:
case OMAP_INIT_CONTEXT_UBOOT_AFTER_CH:
+ enable_basic_clocks();
scale_vcores();
setup_dplls();
- enable_basic_clocks();
setup_non_essential_dplls();
enable_non_essential_clocks();
break;
diff --git a/arch/arm/include/asm/arch-omap3/cpu.h b/arch/arm/include/asm/arch-omap3/cpu.h
index e944de7..08a725d 100644
--- a/arch/arm/include/asm/arch-omap3/cpu.h
+++ b/arch/arm/include/asm/arch-omap3/cpu.h
@@ -498,4 +498,30 @@ struct pm {
/* MUSB base */
#define MUSB_BASE (OMAP34XX_CORE_L4_IO_BASE + 0xAB000)
+/* OMAP3 GPIO registers */
+#define OMAP_GPIO_REVISION 0x0000
+#define OMAP_GPIO_SYSCONFIG 0x0010
+#define OMAP_GPIO_SYSSTATUS 0x0014
+#define OMAP_GPIO_IRQSTATUS1 0x0018
+#define OMAP_GPIO_IRQSTATUS2 0x0028
+#define OMAP_GPIO_IRQENABLE2 0x002c
+#define OMAP_GPIO_IRQENABLE1 0x001c
+#define OMAP_GPIO_WAKE_EN 0x0020
+#define OMAP_GPIO_CTRL 0x0030
+#define OMAP_GPIO_OE 0x0034
+#define OMAP_GPIO_DATAIN 0x0038
+#define OMAP_GPIO_DATAOUT 0x003c
+#define OMAP_GPIO_LEVELDETECT0 0x0040
+#define OMAP_GPIO_LEVELDETECT1 0x0044
+#define OMAP_GPIO_RISINGDETECT 0x0048
+#define OMAP_GPIO_FALLINGDETECT 0x004c
+#define OMAP_GPIO_DEBOUNCE_EN 0x0050
+#define OMAP_GPIO_DEBOUNCE_VAL 0x0054
+#define OMAP_GPIO_CLEARIRQENABLE1 0x0060
+#define OMAP_GPIO_SETIRQENABLE1 0x0064
+#define OMAP_GPIO_CLEARWKUENA 0x0080
+#define OMAP_GPIO_SETWKUENA 0x0084
+#define OMAP_GPIO_CLEARDATAOUT 0x0090
+#define OMAP_GPIO_SETDATAOUT 0x0094
+
#endif /* _CPU_H */
diff --git a/arch/arm/include/asm/arch-omap3/gpio.h b/arch/arm/include/asm/arch-omap3/gpio.h
deleted file mode 100644
index 30f633c..0000000
--- a/arch/arm/include/asm/arch-omap3/gpio.h
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * Copyright (c) 2009 Wind River Systems, Inc.
- * Tom Rix <Tom.Rix at windriver.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- *
- * This work is derived from the linux 2.6.27 kernel source
- * To fetch, use the kernel repository
- * git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
- * Use the v2.6.27 tag.
- *
- * Below is the original's header including its copyright
- *
- * linux/arch/arm/plat-omap/gpio.c
- *
- * Support functions for OMAP GPIO
- *
- * Copyright (C) 2003-2005 Nokia Corporation
- * Written by Juha Yrjölä <juha.yrjola at nokia.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#ifndef _GPIO_H
-#define _GPIO_H
-
-#define OMAP24XX_GPIO_REVISION 0x0000
-#define OMAP24XX_GPIO_SYSCONFIG 0x0010
-#define OMAP24XX_GPIO_SYSSTATUS 0x0014
-#define OMAP24XX_GPIO_IRQSTATUS1 0x0018
-#define OMAP24XX_GPIO_IRQSTATUS2 0x0028
-#define OMAP24XX_GPIO_IRQENABLE2 0x002c
-#define OMAP24XX_GPIO_IRQENABLE1 0x001c
-#define OMAP24XX_GPIO_WAKE_EN 0x0020
-#define OMAP24XX_GPIO_CTRL 0x0030
-#define OMAP24XX_GPIO_OE 0x0034
-#define OMAP24XX_GPIO_DATAIN 0x0038
-#define OMAP24XX_GPIO_DATAOUT 0x003c
-#define OMAP24XX_GPIO_LEVELDETECT0 0x0040
-#define OMAP24XX_GPIO_LEVELDETECT1 0x0044
-#define OMAP24XX_GPIO_RISINGDETECT 0x0048
-#define OMAP24XX_GPIO_FALLINGDETECT 0x004c
-#define OMAP24XX_GPIO_DEBOUNCE_EN 0x0050
-#define OMAP24XX_GPIO_DEBOUNCE_VAL 0x0054
-#define OMAP24XX_GPIO_CLEARIRQENABLE1 0x0060
-#define OMAP24XX_GPIO_SETIRQENABLE1 0x0064
-#define OMAP24XX_GPIO_CLEARWKUENA 0x0080
-#define OMAP24XX_GPIO_SETWKUENA 0x0084
-#define OMAP24XX_GPIO_CLEARDATAOUT 0x0090
-#define OMAP24XX_GPIO_SETDATAOUT 0x0094
-
-struct gpio_bank {
- void *base;
- int method;
-};
-
-#define METHOD_GPIO_24XX 4
-
-/* This is the interface */
-
-/* Request a gpio before using it */
-int omap_request_gpio(int gpio);
-/* Reset and free a gpio after using it */
-void omap_free_gpio(int gpio);
-/* Sets the gpio as input or output */
-void omap_set_gpio_direction(int gpio, int is_input);
-/* Set or clear a gpio output */
-void omap_set_gpio_dataout(int gpio, int enable);
-/* Get the value of a gpio input */
-int omap_get_gpio_datain(int gpio);
-
-#endif /* _GPIO_H_ */
diff --git a/arch/arm/include/asm/arch-omap4/cpu.h b/arch/arm/include/asm/arch-omap4/cpu.h
index 7d5748a..08b9c99 100644
--- a/arch/arm/include/asm/arch-omap4/cpu.h
+++ b/arch/arm/include/asm/arch-omap4/cpu.h
@@ -142,4 +142,30 @@ struct watchdog {
/* MUSB base */
#define MUSB_BASE (OMAP44XX_L4_CORE_BASE + 0xAB000)
+/* OMAP4 GPIO registers */
+#define OMAP_GPIO_REVISION 0x0000
+#define OMAP_GPIO_SYSCONFIG 0x0010
+#define OMAP_GPIO_SYSSTATUS 0x0114
+#define OMAP_GPIO_IRQSTATUS1 0x0118
+#define OMAP_GPIO_IRQSTATUS2 0x0128
+#define OMAP_GPIO_IRQENABLE2 0x012c
+#define OMAP_GPIO_IRQENABLE1 0x011c
+#define OMAP_GPIO_WAKE_EN 0x0120
+#define OMAP_GPIO_CTRL 0x0130
+#define OMAP_GPIO_OE 0x0134
+#define OMAP_GPIO_DATAIN 0x0138
+#define OMAP_GPIO_DATAOUT 0x013c
+#define OMAP_GPIO_LEVELDETECT0 0x0140
+#define OMAP_GPIO_LEVELDETECT1 0x0144
+#define OMAP_GPIO_RISINGDETECT 0x0148
+#define OMAP_GPIO_FALLINGDETECT 0x014c
+#define OMAP_GPIO_DEBOUNCE_EN 0x0150
+#define OMAP_GPIO_DEBOUNCE_VAL 0x0154
+#define OMAP_GPIO_CLEARIRQENABLE1 0x0160
+#define OMAP_GPIO_SETIRQENABLE1 0x0164
+#define OMAP_GPIO_CLEARWKUENA 0x0180
+#define OMAP_GPIO_SETWKUENA 0x0184
+#define OMAP_GPIO_CLEARDATAOUT 0x0190
+#define OMAP_GPIO_SETDATAOUT 0x0194
+
#endif /* _CPU_H */
diff --git a/arch/arm/include/asm/arch-omap4/omap4.h b/arch/arm/include/asm/arch-omap4/omap4.h
index 7ff46d7..9aad0e6 100644
--- a/arch/arm/include/asm/arch-omap4/omap4.h
+++ b/arch/arm/include/asm/arch-omap4/omap4.h
@@ -153,4 +153,12 @@ struct s32ktimer {
#define DEV_DATA_PTR_OFFSET 0x18
#define BOOT_MODE_OFFSET 0x8
+/* GPIO */
+#define OMAP44XX_GPIO1_BASE 0x4A310000
+#define OMAP44XX_GPIO2_BASE 0x48055000
+#define OMAP44XX_GPIO3_BASE 0x48057000
+#define OMAP44XX_GPIO4_BASE 0x48059000
+#define OMAP44XX_GPIO5_BASE 0x4805B000
+#define OMAP44XX_GPIO6_BASE 0x4805D000
+
#endif
--
1.7.0.4
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