From b437c52c296715eaad77c949fcfc074911a72427 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Fri, 17 Oct 2014 16:18:59 +0200 Subject: ARM: integrator: move restart to the device tree Using the augmented reset driver for the Versatile family, we can move the reset handling for the Integrator out of the machine. We add a "syscon" attribute to the core module, and access the syscon registers using this handle. We need to select SYSCON, POWER, POWER_RESET and POWER_RESET_VERSATILE in order for the restart functionality to always be available on all systems (it should not be optional). Signed-off-by: Linus Walleij --- arch/arm/boot/dts/integrator.dtsi | 2 +- arch/arm/mach-integrator/Kconfig | 4 ++++ arch/arm/mach-integrator/cm.h | 1 - arch/arm/mach-integrator/common.h | 1 - arch/arm/mach-integrator/core.c | 8 -------- arch/arm/mach-integrator/integrator_ap.c | 1 - arch/arm/mach-integrator/integrator_cp.c | 1 - 7 files changed, 5 insertions(+), 13 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/boot/dts/integrator.dtsi b/arch/arm/boot/dts/integrator.dtsi index 88e3d477bf16..5546630c4fd2 100644 --- a/arch/arm/boot/dts/integrator.dtsi +++ b/arch/arm/boot/dts/integrator.dtsi @@ -6,7 +6,7 @@ / { core-module@10000000 { - compatible = "arm,core-module-integrator"; + compatible = "arm,core-module-integrator", "syscon"; reg = <0x10000000 0x200>; }; diff --git a/arch/arm/mach-integrator/Kconfig b/arch/arm/mach-integrator/Kconfig index aa7eb272e602..62e6db4bd533 100644 --- a/arch/arm/mach-integrator/Kconfig +++ b/arch/arm/mach-integrator/Kconfig @@ -8,8 +8,12 @@ config ARCH_INTEGRATOR select GENERIC_CLOCKEVENTS select HAVE_TCM select ICST + select MFD_SYSCON select MULTI_IRQ_HANDLER select PLAT_VERSATILE + select POWER_RESET + select POWER_RESET_VERSATILE + select POWER_SUPPLY select SPARSE_IRQ select USE_OF select VERSATILE_FPGA_IRQ diff --git a/arch/arm/mach-integrator/cm.h b/arch/arm/mach-integrator/cm.h index 4ecff7bff482..5b8ba8247f45 100644 --- a/arch/arm/mach-integrator/cm.h +++ b/arch/arm/mach-integrator/cm.h @@ -11,7 +11,6 @@ void cm_clear_irqs(void); #define CM_CTRL_LED (1 << 0) #define CM_CTRL_nMBDET (1 << 1) #define CM_CTRL_REMAP (1 << 2) -#define CM_CTRL_RESET (1 << 3) /* * Integrator/AP,PP2 specific diff --git a/arch/arm/mach-integrator/common.h b/arch/arm/mach-integrator/common.h index ad0ac5547b2c..27a627aa1e8f 100644 --- a/arch/arm/mach-integrator/common.h +++ b/arch/arm/mach-integrator/common.h @@ -4,5 +4,4 @@ extern struct amba_pl010_data ap_uart_data; void integrator_init_early(void); int integrator_init(bool is_cp); void integrator_reserve(void); -void integrator_restart(enum reboot_mode, const char *); void integrator_init_sysfs(struct device *parent, u32 id); diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c index e3f3aca43efb..b06fd9f99a46 100644 --- a/arch/arm/mach-integrator/core.c +++ b/arch/arm/mach-integrator/core.c @@ -140,14 +140,6 @@ void __init integrator_reserve(void) memblock_reserve(PHYS_OFFSET, __pa(swapper_pg_dir) - PHYS_OFFSET); } -/* - * To reset, we hit the on-board reset register in the system FPGA - */ -void integrator_restart(enum reboot_mode mode, const char *cmd) -{ - cm_control(CM_CTRL_RESET, CM_CTRL_RESET); -} - static u32 integrator_id; static ssize_t intcp_get_manf(struct device *dev, diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c index 8a879b654fde..e6854c3f854e 100644 --- a/arch/arm/mach-integrator/integrator_ap.c +++ b/arch/arm/mach-integrator/integrator_ap.c @@ -365,6 +365,5 @@ DT_MACHINE_START(INTEGRATOR_AP_DT, "ARM Integrator/AP (Device Tree)") .init_early = ap_init_early, .init_irq = ap_init_irq_of, .init_machine = ap_init_of, - .restart = integrator_restart, .dt_compat = ap_dt_board_compat, MACHINE_END diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c index cca02eb75eb5..fa8475b4872d 100644 --- a/arch/arm/mach-integrator/integrator_cp.c +++ b/arch/arm/mach-integrator/integrator_cp.c @@ -324,6 +324,5 @@ DT_MACHINE_START(INTEGRATOR_CP_DT, "ARM Integrator/CP (Device Tree)") .init_early = intcp_init_early, .init_irq = intcp_init_irq_of, .init_machine = intcp_init_of, - .restart = integrator_restart, .dt_compat = intcp_dt_board_compat, MACHINE_END -- cgit v1.2.3