[linux-yocto] [PATCH 62/94] arm/mach-axxia: add support for SPI flash.
Paul Butler
butler.paul at gmail.com
Thu Nov 7 17:13:16 PST 2013
From: John Jacques <john.jacques at lsi.com>
Signed-off-by: John Jacques <john.jacques at lsi.com>
Signed-off-by: Paul Butler <paul.butler at windriver.com>
---
arch/arm/boot/dts/axm55xx.dts | 157 ++++++++++++++++++++++++-----------------
arch/arm/configs/lsi_defconfig | 3 +-
arch/arm/mach-axxia/axxia.c | 25 ++-----
3 files changed, 99 insertions(+), 86 deletions(-)
diff --git a/arch/arm/boot/dts/axm55xx.dts b/arch/arm/boot/dts/axm55xx.dts
index 9315ef2..b3df3ad 100644
--- a/arch/arm/boot/dts/axm55xx.dts
+++ b/arch/arm/boot/dts/axm55xx.dts
@@ -10,12 +10,12 @@
*
* 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
+ * 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
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/dts-v1/;
@@ -32,8 +32,8 @@
chosen { };
aliases {
- serial0 = &axxia_serial0;
- timer = &axxia_timers;
+ serial0 = &axxia_serial0;
+ timer = &axxia_timers;
ethernet0 = &axxia_femac0;
};
@@ -45,112 +45,112 @@
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <0>;
- cpu-release-addr = <0>; // Fixed by the boot loader
+ cpu-release-addr = <0>; // Fixed by the boot loader
};
cpu at 1 {
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <1>;
- cpu-release-addr = <0>; // Fixed by the boot loader
+ cpu-release-addr = <0>; // Fixed by the boot loader
};
cpu at 2 {
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <2>;
- cpu-release-addr = <0>; // Fixed by the boot loader
+ cpu-release-addr = <0>; // Fixed by the boot loader
};
cpu at 3 {
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <3>;
- cpu-release-addr = <0>; // Fixed by the boot loader
+ cpu-release-addr = <0>; // Fixed by the boot loader
};
cpu at 4 {
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <4>;
- cpu-release-addr = <0>; // Fixed by the boot loader
+ cpu-release-addr = <0>; // Fixed by the boot loader
};
cpu at 5 {
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <5>;
- cpu-release-addr = <0>; // Fixed by the boot loader
+ cpu-release-addr = <0>; // Fixed by the boot loader
};
cpu at 6 {
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <6>;
- cpu-release-addr = <0>; // Fixed by the boot loader
+ cpu-release-addr = <0>; // Fixed by the boot loader
};
cpu at 7 {
device_type = "cpua";
compatible = "arm,cortex-a15";
reg = <7>;
- cpu-release-addr = <0>; // Fixed by the boot loader
+ cpu-release-addr = <0>; // Fixed by the boot loader
};
cpu at 8 {
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <8>;
- cpu-release-addr = <0>; // Fixed by the boot loader
+ cpu-release-addr = <0>; // Fixed by the boot loader
};
cpu at 9 {
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <9>;
- cpu-release-addr = <0>; // Fixed by the boot loader
+ cpu-release-addr = <0>; // Fixed by the boot loader
};
cpu at 10 {
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <10>;
- cpu-release-addr = <0>; // Fixed by the boot loader
+ cpu-release-addr = <0>; // Fixed by the boot loader
};
cpu at 11 {
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <11>;
- cpu-release-addr = <0>; // Fixed by the boot loader
+ cpu-release-addr = <0>; // Fixed by the boot loader
};
cpu at 12 {
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <12>;
- cpu-release-addr = <0>; // Fixed by the boot loader
+ cpu-release-addr = <0>; // Fixed by the boot loader
};
cpu at 13 {
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <13>;
- cpu-release-addr = <0>; // Fixed by the boot loader
+ cpu-release-addr = <0>; // Fixed by the boot loader
};
cpu at 14 {
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <14>;
- cpu-release-addr = <0>; // Fixed by the boot loader
+ cpu-release-addr = <0>; // Fixed by the boot loader
};
cpu at 15 {
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <15>;
- cpu-release-addr = <0>; // Fixed by the boot loader
+ cpu-release-addr = <0>; // Fixed by the boot loader
};
};
@@ -159,7 +159,7 @@
#size-cells = <0>;
cpu {
- frequency = <0>; /* Filled in by the boot loader. */
+ frequency = <0>; /* Filled in by the boot loader. */
};
peripheral {
@@ -167,7 +167,7 @@
};
emmc {
- frequency = <0>; /* Filled in by the boot loader. */
+ frequency = <0>; /* Filled in by the boot loader. */
};
};
@@ -229,15 +229,15 @@
reg = <0x20 0x10094000 0 0x1000>;
};
- axxia_femac0: femac at 0x2010120000 {
- compatible = "acp-femac";
+ axxia_femac0: femac at 0x2010120000 {
+ compatible = "acp-femac";
device_type = "network";
reg = <0x20 0x10120000 0 0x1000>,
- <0x20 0x10121000 0 0x1000>,
+ <0x20 0x10121000 0 0x1000>,
<0x20 0x10122000 0 0x1000>;
interrupts = <0 2 4>,
- <0 3 4>,
- <0 4 4>;
+ <0 3 4>,
+ <0 4 4>;
mdio-reg = <0x20 0x10090000 0 0x1000>;
mdio-clock = <0>;
phy-address = <0x1e>;
@@ -246,16 +246,16 @@
mac-address = [00 00 00 00 00 00];
};
- USB0: usb at 004a4000 {
- device_type = "usb";
- compatible = "acp-usb";
- enabled = <0>;
- reg = <0x20 0x10140000 0x0 0020000>,
- <0x20 0x10094000 0x0 0002000>;
- interrupts = <0 55 4>;
- };
+ USB0: usb at 004a4000 {
+ device_type = "usb";
+ compatible = "acp-usb";
+ enabled = <0>;
+ reg = <0x20 0x10140000 0x0 0020000>,
+ <0x20 0x10094000 0x0 0002000>;
+ interrupts = <0 55 4>;
+ };
- amba {
+ amba {
compatible = "arm,amba-bus";
#address-cells = <2>;
#size-cells = <2>;
@@ -279,54 +279,81 @@
<0 52 4>,
<0 53 4>;
};
+
+ gpio at 2010092000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0x20 0x10092000 0x00 0x1000>;
+ interrupts = <0 10 4>,
+ <0 11 4>,
+ <0 12 4>,
+ <0 13 4>,
+ <0 14 4>,
+ <0 15 4>,
+ <0 16 4>,
+ <0 17 4>;
+ };
+
+ gpio at 2010093000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0x20 0x10093000 0x00 0x1000>;
+ interrupts = <0 18 4>;
+ };
+
+ ssp at 2010088000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "arm,pl022", "arm,primecell";
+ reg = <0x20 0x10088000 0x00 0x1000>;
+ interrupts = <0 42 4>;
+ };
};
- I2C0: i2c at 0x02010084000 {
+ I2C0: i2c at 0x02010084000 {
#address-cells = <1>;
#size-cells = <0>;
- compatible = "lsi,api2c";
- device_type = "i2c";
- port = <0>;
- reg = <0x20 0x10084000 0x00 0x1000>;
+ compatible = "lsi,api2c";
+ device_type = "i2c";
+ port = <0>;
+ reg = <0x20 0x10084000 0x00 0x1000>;
interrupts = <0 19 4>;
- };
+ };
- I2C1: i2c at 0x02010085000 {
+ I2C1: i2c at 0x02010085000 {
#address-cells = <1>;
#size-cells = <0>;
- compatible = "lsi,api2c";
- device_type = "i2c";
- port = <1>;
- reg = <0x20 0x10085000 0x00 0x1000>;
+ compatible = "lsi,api2c";
+ device_type = "i2c";
+ port = <1>;
+ reg = <0x20 0x10085000 0x00 0x1000>;
interrupts = <0 20 4>;
- eeprom at 54 {
- compatible = "24c1024";
- reg = <0x54>;
+ eeprom at 54 {
+ compatible = "24c1024";
+ reg = <0x54>;
pagesize = <128>;
- };
- };
+ };
+ };
- I2C2: i2c at 0x02010086000 {
+ I2C2: i2c at 0x02010086000 {
#address-cells = <1>;
#size-cells = <0>;
- compatible = "lsi,api2c";
- device_type = "i2c";
- port = <2>;
- reg = <0x20 0x10086000 0x00 0x1000>;
+ compatible = "lsi,api2c";
+ device_type = "i2c";
+ port = <2>;
+ reg = <0x20 0x10086000 0x00 0x1000>;
interrupts = <0 21 4>;
- };
+ };
- SMB: i2c at 0x02010087000 {
+ SMB: i2c at 0x02010087000 {
#address-cells = <1>;
#size-cells = <0>;
- compatible = "lsi,api2c";
- device_type = "i2c";
- port = <3>;
- bus_name = "smb";
- reg = <0x20 0x10087000 0x00 0x1000>;
+ compatible = "lsi,api2c";
+ device_type = "i2c";
+ port = <3>;
+ bus_name = "smb";
+ reg = <0x20 0x10087000 0x00 0x1000>;
interrupts = <0 22 4>;
- };
+ };
mtc at 2010098000 {
compatible = "lsi,mtc";
diff --git a/arch/arm/configs/lsi_defconfig b/arch/arm/configs/lsi_defconfig
index 239c95e..13bca38 100644
--- a/arch/arm/configs/lsi_defconfig
+++ b/arch/arm/configs/lsi_defconfig
@@ -668,7 +668,8 @@ CONFIG_MTD_PHYSMAP_OF=y
#
# CONFIG_MTD_PMC551 is not set
# CONFIG_MTD_DATAFLASH is not set
-# CONFIG_MTD_M25P80 is not set
+CONFIG_MTD_M25P80=y
+CONFIG_M25PXX_USE_FAST_READ=y
# CONFIG_MTD_SST25L is not set
# CONFIG_MTD_SLRAM is not set
# CONFIG_MTD_PHRAM is not set
diff --git a/arch/arm/mach-axxia/axxia.c b/arch/arm/mach-axxia/axxia.c
index 28de7b6..b7db501 100644
--- a/arch/arm/mach-axxia/axxia.c
+++ b/arch/arm/mach-axxia/axxia.c
@@ -173,7 +173,6 @@ spidev_chip_select(u32 control, unsigned n)
static void spi_cs_eeprom0(u32 control) { spidev_chip_select(control, 0); }
static void spi_cs_eeprom1(u32 control) { spidev_chip_select(control, 1); }
-static void spi_cs_eeprom2(u32 control) { spidev_chip_select(control, 2); }
struct pl022_config_chip spi_eeprom0 = {
.iface = SSP_INTERFACE_MOTOROLA_SPI,
@@ -187,37 +186,23 @@ struct pl022_config_chip spi_eeprom1 = {
.cs_control = spi_cs_eeprom1
};
-struct pl022_config_chip spi_eeprom2 = {
- .iface = SSP_INTERFACE_MOTOROLA_SPI,
- .com_mode = POLLING_TRANSFER,
- .cs_control = spi_cs_eeprom2
-};
-
static struct spi_board_info spi_devs[] __initdata = {
{
- .modalias = "spidev",
+ .modalias = "s25fl129p1",
.controller_data = &spi_eeprom0,
.bus_num = 0,
.chip_select = 0,
- .max_speed_hz = 12000000,
+ .max_speed_hz = 25000000,
.mode = SPI_MODE_0,
},
{
- .modalias = "spidev",
+ .modalias = "s25fl129p1",
.controller_data = &spi_eeprom1,
.bus_num = 0,
.chip_select = 1,
- .max_speed_hz = 12000000,
- .mode = SPI_MODE_0,
- },
- {
- .modalias = "spidev",
- .controller_data = &spi_eeprom2,
- .bus_num = 0,
- .chip_select = 2,
- .max_speed_hz = 12000000,
+ .max_speed_hz = 25000000,
.mode = SPI_MODE_0,
- },
+ }
};
void __init axxia_dt_init(void)
--
1.8.3.4
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