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drivers: flash: NXP k6x/kw2xd: Convert to use device tree

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Convert NXP k6x and kw2xd flash driver to use device tree to get the
flash controller name from device tree.  We introduce yaml bindings for
the "nxp,kinetis-ftfe" and "nxp,kinetis-ftfl" devices.

Fixes: #5788

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This commit is contained in:
Kumar Gala 2018-01-18 13:40:18 -06:00 • committed by Maureen Helm
commit a394693d2f
10 changed files with 65 additions and 16 deletions
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6
arch/arm/soc/nxp_kinetis/k6x/dts.fixup Normal file
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@ -0,0 +1,6 @@
/* SoC level DTS fixup file */
#define FLASH_DEV_BASE_ADDRESS NXP_KINETIS_FTFE_40020000_BASE_ADDRESS_0
#define FLASH_DEV_NAME NXP_KINETIS_FTFE_40020000_LABEL
/* End of SoC Level DTS fixup file */

2
arch/arm/soc/nxp_kinetis/k6x/soc.h
View file

@ -54,7 +54,7 @@ extern "C" {
/* For IMG_MANAGER */
#if defined(CONFIG_SOC_FLASH_MCUX)
#define FLASH_DRIVER_NAME CONFIG_SOC_FLASH_MCUX_DEV_NAME
#define FLASH_DRIVER_NAME FLASH_DEV_NAME
#endif
#endif /* !_ASMLANGUAGE */

8
arch/arm/soc/nxp_kinetis/kwx/dts.fixup Normal file
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@ -0,0 +1,8 @@
/* SoC level DTS fixup file */
#if defined(CONFIG_SOC_MKW22D5) || defined(CONFIG_SOC_MKW24D5)
#define FLASH_DEV_BASE_ADDRESS NXP_KINETIS_FTFL_40020000_BASE_ADDRESS_0
#define FLASH_DEV_NAME NXP_KINETIS_FTFL_40020000_LABEL
#endif /* CONFIG_SOC_MKW22D5 || CONFIG_SOC_MKW24D5 */
/* End of SoC Level DTS fixup file */

7
drivers/flash/Kconfig
View file

@ -149,13 +149,6 @@ config SOC_FLASH_MCUX
have an impact on the overall system performance - whether
this is acceptable or not will depend on the use case.
config SOC_FLASH_MCUX_DEV_NAME
string "MCUX flash device name"
depends on SOC_FLASH_MCUX
default "MCUX_FLASH"
help
Specify the device name for the flash driver.
source "drivers/flash/Kconfig.stm32"
source "drivers/flash/Kconfig.sam0"

2
drivers/flash/soc_flash_mcux.c
View file

@ -110,7 +110,7 @@ static int flash_mcux_init(struct device *dev)
return (rc == kStatus_Success) ? 0 : -EIO;
}
DEVICE_AND_API_INIT(flash_mcux, CONFIG_SOC_FLASH_MCUX_DEV_NAME,
DEVICE_AND_API_INIT(flash_mcux, FLASH_DEV_NAME,
flash_mcux_init, &flash_data, NULL, POST_KERNEL,
CONFIG_KERNEL_INIT_PRIORITY_DEVICE, &flash_mcux_api);

8
dts/arm/nxp/nxp_k6x.dtsi
View file

@ -64,10 +64,12 @@
#clocks-cells = <3>;
};
flash-controller@4001f000 {
compatible = "nxp,k64f-flash-controller";
reg = <0x4001f000 0x27c>;
flash-controller@40020000 {
compatible = "nxp,kinetis-ftfe";
label = "FLASH_CTRL";
reg = <0x40020000 0x18>;
interrupts = <18 0>, <19 0>;
interrupt-names = "command-complete", "read-collision";
#address-cells = <1>;
#size-cells = <1>;

8
dts/arm/nxp/nxp_kw2xd.dtsi
View file

@ -56,10 +56,12 @@
#clocks-cells = <3>;
};
flash-controller@4001f000 {
compatible = "nxp,k64f-flash-controller";
reg = <0x4001f000 0x27c>;
flash-controller@40020000 {
compatible = "nxp,kinetis-ftfl";
label = "FLASH_CTRL";
reg = <0x40020000 0x18>;
interrupts = <18 0>, <19 0>;
interrupt-names = "command-complete", "read-collision";
#address-cells = <1>;
#size-cells = <1>;

19
dts/bindings/flash_controller/nxp,kinetis-ftfe.yaml Normal file
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@ -0,0 +1,19 @@
---
title: NXP Kinetis Flash Memory Module (FTFE)
id: nxp,kinetis-ftfe
version: 0.1
description: >
This binding gives for the NXP Kinetis Flash Memory Module E (FTFE)
inherits:
!include flash-controller.yaml
properties:
compatible:
type: string
category: required
description: compatible strings
constraint: "nxp,kinetis-ftfe"
...

19
dts/bindings/flash_controller/nxp,kinetis-ftfl.yaml Normal file
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@ -0,0 +1,19 @@
---
title: NXP Kinetis Flash Memory Module (FTFL)
id: nxp,kinetis-ftfl
version: 0.1
description: >
This binding gives for the NXP Kinetis Flash Memory Module L (FTFL)
inherits:
!include flash-controller.yaml
properties:
compatible:
type: string
category: required
description: compatible strings
constraint: "nxp,kinetis-ftfl"
...

2
samples/mpu/mpu_test/src/main.c
View file

@ -41,7 +41,7 @@ static int shell_cmd_write_mcux(int argc, char *argv[])
ARG_UNUSED(argv);
struct device *flash_dev;
flash_dev = device_get_binding(CONFIG_SOC_FLASH_MCUX_DEV_NAME);
flash_dev = device_get_binding(FLASH_DEV_NAME);
u32_t value[2];