* [PATCH 1/9] ARM i.MX: IIM rework
2011-07-28 7:59 i.MX IIM module rework Sascha Hauer
@ 2011-07-28 7:59 ` Sascha Hauer
2011-07-28 7:59 ` [PATCH 2/9] ARM i.MX IIM: add support for more SoCs Sascha Hauer
` (7 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: Sascha Hauer @ 2011-07-28 7:59 UTC (permalink / raw)
To: barebox
The IIM module uses two drivers, one for the general IIM
module and one for the individual banks.
This patch turns this into a single driver to ease registration
of the resources. This changes the user visible behaviour in
the way that the explicit_sense_enable and permanent_write_enable
device parameters are no longer bank specific but for the
whole device. Also, the IIM module supports a maximum of
8 fuse banks, with these patch all of them are registered, even
if they are not present in a SoC.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/arm/mach-imx/iim.c | 99 +++++++++++++++++++++++------------------------
1 files changed, 49 insertions(+), 50 deletions(-)
diff --git a/arch/arm/mach-imx/iim.c b/arch/arm/mach-imx/iim.c
index 0774ebb..1d23fd3 100644
--- a/arch/arm/mach-imx/iim.c
+++ b/arch/arm/mach-imx/iim.c
@@ -31,7 +31,15 @@
static unsigned long mac_addr_base;
-static int do_fuse_sense(unsigned long reg_base, unsigned int bank,
+struct iim_priv {
+ struct cdev cdev;
+ void __iomem *base;
+ void __iomem *bankbase;
+ int bank;
+ int banksize;
+};
+
+static int do_fuse_sense(void __iomem *reg_base, unsigned int bank,
unsigned int row)
{
u8 err, stat;
@@ -77,37 +85,34 @@ static ssize_t imx_iim_read(struct cdev *cdev, void *buf, size_t count,
ulong offset, ulong flags)
{
ulong size, i;
- struct device_d *dev = cdev->dev;
+ struct iim_priv *priv = cdev->priv;
const char *sense_param;
unsigned long explicit_sense = 0;
- if (dev == NULL)
- return -EINVAL;
-
- if ((sense_param = dev_get_param(dev, "explicit_sense_enable")))
+ if ((sense_param = dev_get_param(cdev->dev, "explicit_sense_enable")))
explicit_sense = simple_strtoul(sense_param, NULL, 0);
- size = min((ulong)count, dev->size - offset);
+ size = min((ulong)count, priv->banksize - offset);
if (explicit_sense) {
for (i = 0; i < size; i++) {
int row_val;
- row_val = do_fuse_sense(dev->parent->map_base,
- dev->id, (offset+i)*4);
+ row_val = do_fuse_sense(priv->base,
+ priv->bank, (offset + i) * 4);
if (row_val < 0)
return row_val;
((u8 *)buf)[i] = (u8)row_val;
}
} else {
for (i = 0; i < size; i++)
- ((u8 *)buf)[i] = ((u8 *)dev->map_base)[(offset+i)*4];
+ ((u8 *)buf)[i] = ((u8 *)priv->bankbase)[(offset+i)*4];
}
return size;
}
#ifdef CONFIG_IMX_IIM_FUSE_BLOW
-static int do_fuse_blow(unsigned long reg_base, unsigned int bank,
+static int do_fuse_blow(void __iomem *reg_base, unsigned int bank,
unsigned int row, u8 value)
{
int bit, ret = 0;
@@ -172,24 +177,21 @@ static ssize_t imx_iim_write(struct cdev *cdev, const void *buf, size_t count,
ulong offset, ulong flags)
{
ulong size, i;
- struct device_d *dev = cdev->dev;
+ struct iim_priv *priv = cdev->priv;
const char *write_param;
unsigned int blow_enable = 0;
- if (dev == NULL)
- return -EINVAL;
-
- if ((write_param = dev_get_param(dev, "permanent_write_enable")))
+ if ((write_param = dev_get_param(cdev->dev, "permanent_write_enable")))
blow_enable = simple_strtoul(write_param, NULL, 0);
- size = min((ulong)count, dev->size - offset);
+ size = min((ulong)count, priv->banksize - offset);
#ifdef CONFIG_IMX_IIM_FUSE_BLOW
if (blow_enable) {
for (i = 0; i < size; i++) {
int ret;
- ret = do_fuse_blow(dev->parent->map_base, dev->id,
- (offset+i)*4, ((u8 *)buf)[i]);
+ ret = do_fuse_blow(priv->base, priv->bank,
+ (offset + i) * 4, ((u8 *)buf)[i]);
if (ret < 0)
return ret;
}
@@ -197,7 +199,7 @@ static ssize_t imx_iim_write(struct cdev *cdev, const void *buf, size_t count,
#endif /* CONFIG_IMX_IIM_FUSE_BLOW */
{
for (i = 0; i < size; i++)
- ((u8 *)dev->map_base)[(offset+i)*4] = ((u8 *)buf)[i];
+ ((u8 *)priv->bankbase)[(offset+i)*4] = ((u8 *)buf)[i];
}
return size;
@@ -224,38 +226,41 @@ static int imx_iim_blow_enable_set(struct device_d *dev, struct param_d *param,
return dev_param_set_generic(dev, param, blow_enable ? "1" : "0");
}
-static int imx_iim_probe(struct device_d *dev)
-{
- struct imx_iim_platform_data *pdata = dev->platform_data;
-
- if (pdata)
- mac_addr_base = pdata->mac_addr_base;
-
- return 0;
-}
-
-static int imx_iim_bank_probe(struct device_d *dev)
+static int imx_iim_add_bank(struct device_d *dev, int num)
{
+ struct iim_priv *priv;
struct cdev *cdev;
- struct device_d *parent;
- int err;
- cdev = xzalloc(sizeof (struct cdev));
- dev->priv = cdev;
+ priv = xzalloc(sizeof (*priv));
+ priv->base = (void __iomem *)dev->map_base;
+ priv->bankbase = priv->base + 0x800 + 0x400 * num;
+ priv->bank = num;
+ priv->banksize = 32;
+ cdev = &priv->cdev;
cdev->dev = dev;
cdev->ops = &imx_iim_ops;
- cdev->size = dev->size;
- cdev->name = asprintf(DRIVERNAME "_bank%d", dev->id);
+ cdev->priv = priv;
+ cdev->size = 32;
+ cdev->name = asprintf(DRIVERNAME "_bank%d", num);
if (cdev->name == NULL)
return -ENOMEM;
- parent = get_device_by_name(DRIVERNAME "0");
- if (parent == NULL)
- return -ENODEV;
- err = dev_add_child(parent, dev);
- if (err < 0)
- return err;
+ return devfs_create(cdev);
+}
+
+static int imx_iim_probe(struct device_d *dev)
+{
+ struct imx_iim_platform_data *pdata = dev->platform_data;
+ int err;
+ int i;
+
+ if (pdata)
+ mac_addr_base = pdata->mac_addr_base;
+
+ for (i = 0; i < 8; i++) {
+ imx_iim_add_bank(dev, i);
+ }
#ifdef CONFIG_IMX_IIM_FUSE_BLOW
err = dev_add_param(dev, "permanent_write_enable",
@@ -275,7 +280,7 @@ static int imx_iim_bank_probe(struct device_d *dev)
if (err < 0)
return err;
- return devfs_create(cdev);
+ return 0;
}
static struct driver_d imx_iim_driver = {
@@ -283,15 +288,9 @@ static struct driver_d imx_iim_driver = {
.probe = imx_iim_probe,
};
-static struct driver_d imx_iim_bank_driver = {
- .name = DRIVERNAME "_bank",
- .probe = imx_iim_bank_probe,
-};
-
static int imx_iim_init(void)
{
register_driver(&imx_iim_driver);
- register_driver(&imx_iim_bank_driver);
return 0;
}
--
1.7.5.4
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^ permalink raw reply [flat|nested] 10+ messages in thread* [PATCH 2/9] ARM i.MX IIM: add support for more SoCs
2011-07-28 7:59 i.MX IIM module rework Sascha Hauer
2011-07-28 7:59 ` [PATCH 1/9] ARM i.MX: IIM rework Sascha Hauer
@ 2011-07-28 7:59 ` Sascha Hauer
2011-07-28 7:59 ` [PATCH 3/9] ARM i.MX IIM: Make explicit sensing the default Sascha Hauer
` (6 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: Sascha Hauer @ 2011-07-28 7:59 UTC (permalink / raw)
To: barebox
Do not depend on the specific SoCs for the IIM module, but
instead exclude the one that don't have this unit.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/arm/mach-imx/Kconfig | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index f497d35..f99fcb3 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -480,7 +480,7 @@ config IMX_CLKO
config IMX_IIM
tristate "IIM fusebox device"
- depends on ARCH_IMX25 || ARCH_IMX35
+ depends on !ARCH_IMX21 && !ARCH_IMX21
help
Device driver for the IC Identification Module (IIM) fusebox. Use the
regular md/mw commands to program and read the fusebox.
--
1.7.5.4
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^ permalink raw reply [flat|nested] 10+ messages in thread* [PATCH 3/9] ARM i.MX IIM: Make explicit sensing the default
2011-07-28 7:59 i.MX IIM module rework Sascha Hauer
2011-07-28 7:59 ` [PATCH 1/9] ARM i.MX: IIM rework Sascha Hauer
2011-07-28 7:59 ` [PATCH 2/9] ARM i.MX IIM: add support for more SoCs Sascha Hauer
@ 2011-07-28 7:59 ` Sascha Hauer
2011-07-28 7:59 ` [PATCH 4/9] ARM i.MX25 IIM: switch IIM support to use resources Sascha Hauer
` (5 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: Sascha Hauer @ 2011-07-28 7:59 UTC (permalink / raw)
To: barebox
The register based fuse readout is not available on i.MX27/31
SoCs, so make explicit sensing the default.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/arm/mach-imx/iim.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-imx/iim.c b/arch/arm/mach-imx/iim.c
index 1d23fd3..69e78ff 100644
--- a/arch/arm/mach-imx/iim.c
+++ b/arch/arm/mach-imx/iim.c
@@ -276,7 +276,7 @@ static int imx_iim_probe(struct device_d *dev)
imx_iim_blow_enable_set, NULL, 0);
if (err < 0)
return err;
- err = dev_set_param(dev, "explicit_sense_enable", "0");
+ err = dev_set_param(dev, "explicit_sense_enable", "1");
if (err < 0)
return err;
--
1.7.5.4
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^ permalink raw reply [flat|nested] 10+ messages in thread* [PATCH 4/9] ARM i.MX25 IIM: switch IIM support to use resources
2011-07-28 7:59 i.MX IIM module rework Sascha Hauer
` (2 preceding siblings ...)
2011-07-28 7:59 ` [PATCH 3/9] ARM i.MX IIM: Make explicit sensing the default Sascha Hauer
@ 2011-07-28 7:59 ` Sascha Hauer
2011-07-28 7:59 ` [PATCH 5/9] ARM i.MX35: Add IIM support Sascha Hauer
` (4 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: Sascha Hauer @ 2011-07-28 7:59 UTC (permalink / raw)
To: barebox
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/arm/mach-imx/imx25.c | 39 +++++----------------------------------
1 files changed, 5 insertions(+), 34 deletions(-)
diff --git a/arch/arm/mach-imx/imx25.c b/arch/arm/mach-imx/imx25.c
index 37eafaf..75ec8c7 100644
--- a/arch/arm/mach-imx/imx25.c
+++ b/arch/arm/mach-imx/imx25.c
@@ -20,6 +20,7 @@
#include <mach/imx-regs.h>
#include <mach/iim.h>
#include <asm/io.h>
+#include <sizes.h>
#include "gpio.h"
@@ -53,41 +54,11 @@ static struct imx_iim_platform_data imx25_iim_pdata = {
.mac_addr_base = IIM_MAC_ADDR,
};
-static struct device_d imx25_iim_dev = {
- .id = -1,
- .name = "imx_iim",
- .map_base = IMX_IIM_BASE,
- .platform_data = &imx25_iim_pdata,
-};
-
-static struct device_d imx25_iim_bank0_dev = {
- .name = "imx_iim_bank",
- .id = 0,
- .map_base = IIM_BANK0_BASE,
- .size = IIM_BANK_SIZE,
-};
-
-static struct device_d imx25_iim_bank1_dev = {
- .name = "imx_iim_bank",
- .id = 1,
- .map_base = IIM_BANK1_BASE,
- .size = IIM_BANK_SIZE,
-};
-
-static struct device_d imx25_iim_bank2_dev = {
- .name = "imx_iim_bank",
- .id = 2,
- .map_base = IIM_BANK2_BASE,
- .size = IIM_BANK_SIZE,
-};
-
-static int imx25_iim_init(void)
+static int imx25_init(void)
{
- register_device(&imx25_iim_dev);
- register_device(&imx25_iim_bank0_dev);
- register_device(&imx25_iim_bank1_dev);
- register_device(&imx25_iim_bank2_dev);
+ add_generic_device("imx_iim", 0, NULL, IMX_IIM_BASE, SZ_4K,
+ IORESOURCE_MEM, &imx25_iim_pdata);
return 0;
}
-coredevice_initcall(imx25_iim_init);
+coredevice_initcall(imx25_init);
--
1.7.5.4
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^ permalink raw reply [flat|nested] 10+ messages in thread* [PATCH 5/9] ARM i.MX35: Add IIM support
2011-07-28 7:59 i.MX IIM module rework Sascha Hauer
` (3 preceding siblings ...)
2011-07-28 7:59 ` [PATCH 4/9] ARM i.MX25 IIM: switch IIM support to use resources Sascha Hauer
@ 2011-07-28 7:59 ` Sascha Hauer
2011-07-28 7:59 ` [PATCH 6/9] ARM i.MX31: " Sascha Hauer
` (3 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: Sascha Hauer @ 2011-07-28 7:59 UTC (permalink / raw)
To: barebox
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/arm/mach-imx/imx35.c | 11 +++++++++++
1 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-imx/imx35.c b/arch/arm/mach-imx/imx35.c
index 74d63eb..40718e5 100644
--- a/arch/arm/mach-imx/imx35.c
+++ b/arch/arm/mach-imx/imx35.c
@@ -16,6 +16,8 @@
*/
#include <common.h>
+#include <sizes.h>
+#include <init.h>
#include <asm/io.h>
#include <mach/imx-regs.h>
#include <mach/iim.h>
@@ -39,3 +41,12 @@ int imx_silicon_revision()
return (reg & 0xFF);
}
+
+static int imx35_init(void)
+{
+ add_generic_device("imx_iim", 0, NULL, IMX_IIM_BASE, SZ_4K,
+ IORESOURCE_MEM, NULL);
+
+ return 0;
+}
+coredevice_initcall(imx35_init);
--
1.7.5.4
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^ permalink raw reply [flat|nested] 10+ messages in thread* [PATCH 6/9] ARM i.MX31: Add IIM support
2011-07-28 7:59 i.MX IIM module rework Sascha Hauer
` (4 preceding siblings ...)
2011-07-28 7:59 ` [PATCH 5/9] ARM i.MX35: Add IIM support Sascha Hauer
@ 2011-07-28 7:59 ` Sascha Hauer
2011-07-28 7:59 ` [PATCH 7/9] ARM i.MX51: " Sascha Hauer
` (2 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: Sascha Hauer @ 2011-07-28 7:59 UTC (permalink / raw)
To: barebox
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/arm/mach-imx/imx31.c | 11 +++++++++++
1 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-imx/imx31.c b/arch/arm/mach-imx/imx31.c
index f2fea4c..bb713ca 100644
--- a/arch/arm/mach-imx/imx31.c
+++ b/arch/arm/mach-imx/imx31.c
@@ -16,6 +16,9 @@
*/
#include <common.h>
+#include <init.h>
+#include <sizes.h>
+#include <mach/imx-regs.h>
#include "gpio.h"
@@ -27,3 +30,11 @@ void *imx_gpio_base[] = {
int imx_gpio_count = ARRAY_SIZE(imx_gpio_base) * 32;
+static int imx31_init(void)
+{
+ add_generic_device("imx_iim", 0, NULL, IMX_IIM_BASE, SZ_4K,
+ IORESOURCE_MEM, NULL);
+
+ return 0;
+}
+coredevice_initcall(imx31_init);
--
1.7.5.4
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^ permalink raw reply [flat|nested] 10+ messages in thread* [PATCH 7/9] ARM i.MX51: Add IIM support
2011-07-28 7:59 i.MX IIM module rework Sascha Hauer
` (5 preceding siblings ...)
2011-07-28 7:59 ` [PATCH 6/9] ARM i.MX31: " Sascha Hauer
@ 2011-07-28 7:59 ` Sascha Hauer
2011-07-28 7:59 ` [PATCH 8/9] ARM i.MX IIM: switch to resources Sascha Hauer
2011-07-28 7:59 ` [PATCH 9/9] ARM i.MX27: Add IIM support Sascha Hauer
8 siblings, 0 replies; 10+ messages in thread
From: Sascha Hauer @ 2011-07-28 7:59 UTC (permalink / raw)
To: barebox
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/arm/mach-imx/imx51.c | 10 ++++++++++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-imx/imx51.c b/arch/arm/mach-imx/imx51.c
index 075ed22..8b7c807 100644
--- a/arch/arm/mach-imx/imx51.c
+++ b/arch/arm/mach-imx/imx51.c
@@ -17,6 +17,7 @@
#include <init.h>
#include <common.h>
+#include <sizes.h>
#include <asm/io.h>
#include <mach/imx51-regs.h>
@@ -79,3 +80,12 @@ static int imx51_print_silicon_rev(void)
return 0;
}
device_initcall(imx51_print_silicon_rev);
+
+static int imx51_init(void)
+{
+ add_generic_device("imx_iim", 0, NULL, MX51_IIM_BASE_ADDR, SZ_4K,
+ IORESOURCE_MEM, NULL);
+
+ return 0;
+}
+coredevice_initcall(imx51_init);
--
1.7.5.4
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^ permalink raw reply [flat|nested] 10+ messages in thread* [PATCH 8/9] ARM i.MX IIM: switch to resources
2011-07-28 7:59 i.MX IIM module rework Sascha Hauer
` (6 preceding siblings ...)
2011-07-28 7:59 ` [PATCH 7/9] ARM i.MX51: " Sascha Hauer
@ 2011-07-28 7:59 ` Sascha Hauer
2011-07-28 7:59 ` [PATCH 9/9] ARM i.MX27: Add IIM support Sascha Hauer
8 siblings, 0 replies; 10+ messages in thread
From: Sascha Hauer @ 2011-07-28 7:59 UTC (permalink / raw)
To: barebox
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/arm/mach-imx/iim.c | 9 ++++++---
1 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mach-imx/iim.c b/arch/arm/mach-imx/iim.c
index 69e78ff..852f75b 100644
--- a/arch/arm/mach-imx/iim.c
+++ b/arch/arm/mach-imx/iim.c
@@ -226,14 +226,14 @@ static int imx_iim_blow_enable_set(struct device_d *dev, struct param_d *param,
return dev_param_set_generic(dev, param, blow_enable ? "1" : "0");
}
-static int imx_iim_add_bank(struct device_d *dev, int num)
+static int imx_iim_add_bank(struct device_d *dev, void __iomem *base, int num)
{
struct iim_priv *priv;
struct cdev *cdev;
priv = xzalloc(sizeof (*priv));
- priv->base = (void __iomem *)dev->map_base;
+ priv->base = base;
priv->bankbase = priv->base + 0x800 + 0x400 * num;
priv->bank = num;
priv->banksize = 32;
@@ -254,12 +254,15 @@ static int imx_iim_probe(struct device_d *dev)
struct imx_iim_platform_data *pdata = dev->platform_data;
int err;
int i;
+ void __iomem *base;
+
+ base = dev_request_mem_region(dev, 0);
if (pdata)
mac_addr_base = pdata->mac_addr_base;
for (i = 0; i < 8; i++) {
- imx_iim_add_bank(dev, i);
+ imx_iim_add_bank(dev, base, i);
}
#ifdef CONFIG_IMX_IIM_FUSE_BLOW
--
1.7.5.4
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^ permalink raw reply [flat|nested] 10+ messages in thread* [PATCH 9/9] ARM i.MX27: Add IIM support
2011-07-28 7:59 i.MX IIM module rework Sascha Hauer
` (7 preceding siblings ...)
2011-07-28 7:59 ` [PATCH 8/9] ARM i.MX IIM: switch to resources Sascha Hauer
@ 2011-07-28 7:59 ` Sascha Hauer
8 siblings, 0 replies; 10+ messages in thread
From: Sascha Hauer @ 2011-07-28 7:59 UTC (permalink / raw)
To: barebox
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/arm/mach-imx/imx27.c | 10 ++++++++++
arch/arm/mach-imx/include/mach/imx27-regs.h | 1 +
2 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-imx/imx27.c b/arch/arm/mach-imx/imx27.c
index 04bdd5f..86039c4 100644
--- a/arch/arm/mach-imx/imx27.c
+++ b/arch/arm/mach-imx/imx27.c
@@ -17,6 +17,8 @@
#include <common.h>
#include <mach/imx-regs.h>
+#include <sizes.h>
+#include <init.h>
#include "gpio.h"
@@ -36,3 +38,11 @@ void *imx_gpio_base[] = {
int imx_gpio_count = ARRAY_SIZE(imx_gpio_base) * 32;
+static int imx27_init(void)
+{
+ add_generic_device("imx_iim", 0, NULL, IMX_IIM_BASE, SZ_4K,
+ IORESOURCE_MEM, NULL);
+
+ return 0;
+}
+coredevice_initcall(imx27_init);
diff --git a/arch/arm/mach-imx/include/mach/imx27-regs.h b/arch/arm/mach-imx/include/mach/imx27-regs.h
index e87d5bf..570b430 100644
--- a/arch/arm/mach-imx/include/mach/imx27-regs.h
+++ b/arch/arm/mach-imx/include/mach/imx27-regs.h
@@ -29,6 +29,7 @@
#define IMX_FB_BASE (0x21000 + IMX_IO_BASE)
#define IMX_PLL_BASE (0x27000 + IMX_IO_BASE)
#define IMX_SYSTEM_CTL_BASE (0x27800 + IMX_IO_BASE)
+#define IMX_IIM_BASE (0x28000 + IMX_IO_BASE)
#define IMX_OTG_BASE (0x24000 + IMX_IO_BASE)
#define IMX_FEC_BASE (0x2b000 + IMX_IO_BASE)
--
1.7.5.4
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