| Message ID | 1521542716-5425-2-git-send-email-patrick.delaunay@st.com |
|---|---|
| State | Accepted |
| Commit | e16750ff0e435bc7a41954f27607c663f27857bc |
| Delegated to: | Tom Rini |
| Headers | show |
| Series | [U-Boot,1/4] arm: timer: get frequency for arch timer armv7 in cp15 cntfrq | expand |
On Tue, Mar 20, 2018 at 11:45:14AM +0100, Patrick Delaunay wrote: > Add STGEN as SYSCON device: allow access to device address > defined in device tree > > Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Applied to u-boot/master, thanks!
diff --git a/arch/arm/dts/stm32mp157-u-boot.dtsi b/arch/arm/dts/stm32mp157-u-boot.dtsi index d374b2b..7a9a4ce 100644 --- a/arch/arm/dts/stm32mp157-u-boot.dtsi +++ b/arch/arm/dts/stm32mp157-u-boot.dtsi @@ -31,6 +31,13 @@ soc { u-boot,dm-pre-reloc; }; + + stgen: stgen@5C008000 { + compatible = "st,stm32-stgen"; + reg = <0x5C008000 0x1000>; + status = "okay"; + u-boot,dm-pre-reloc; + }; }; &clk_hsi { diff --git a/arch/arm/mach-stm32mp/Makefile b/arch/arm/mach-stm32mp/Makefile index 4620869..a495c53 100644 --- a/arch/arm/mach-stm32mp/Makefile +++ b/arch/arm/mach-stm32mp/Makefile @@ -6,5 +6,6 @@ obj-y += cpu.o obj-y += dram_init.o +obj-y += syscon.o obj-$(CONFIG_SPL_BUILD) += spl.o diff --git a/arch/arm/mach-stm32mp/include/mach/stm32.h b/arch/arm/mach-stm32mp/include/mach/stm32.h index 40faeb0..c7a2789 100644 --- a/arch/arm/mach-stm32mp/include/mach/stm32.h +++ b/arch/arm/mach-stm32mp/include/mach/stm32.h @@ -25,6 +25,11 @@ #define STM32_DDR_SIZE SZ_1G #ifndef __ASSEMBLY__ +/* enumerated used to identify the SYSCON driver instance */ +enum { + STM32MP_SYSCON_UNKNOWN, + STM32MP_SYSCON_STGEN, +}; /* * enumerated for boot interface from Bootrom, used in TAMP_BOOT_CONTEXT diff --git a/arch/arm/mach-stm32mp/syscon.c b/arch/arm/mach-stm32mp/syscon.c new file mode 100644 index 0000000..5641745 --- /dev/null +++ b/arch/arm/mach-stm32mp/syscon.c @@ -0,0 +1,23 @@ +/* + * Copyright (C) 2018, STMicroelectronics - All Rights Reserved + * + * SPDX-License-Identifier: GPL-2.0+ BSD-3-Clause + */ + +#include <common.h> +#include <dm.h> +#include <syscon.h> +#include <asm/arch/stm32.h> + +static const struct udevice_id stm32mp_syscon_ids[] = { + { .compatible = "st,stm32-stgen", + .data = STM32MP_SYSCON_STGEN }, + { } +}; + +U_BOOT_DRIVER(syscon_stm32mp) = { + .name = "stmp32mp_syscon", + .id = UCLASS_SYSCON, + .of_match = stm32mp_syscon_ids, + .bind = dm_scan_fdt_dev, +};
Add STGEN as SYSCON device: allow access to device address defined in device tree Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> --- arch/arm/dts/stm32mp157-u-boot.dtsi | 7 +++++++ arch/arm/mach-stm32mp/Makefile | 1 + arch/arm/mach-stm32mp/include/mach/stm32.h | 5 +++++ arch/arm/mach-stm32mp/syscon.c | 23 +++++++++++++++++++++++ 4 files changed, 36 insertions(+) create mode 100644 arch/arm/mach-stm32mp/syscon.c