x86: Switch to use DM sysreset driver

This converts all x86 boards over to DM sysreset.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

arch/Kconfig

@@ -118,6 +118,8 @@ config X86
 	imply DM_SPI_FLASH
 	imply DM_USB
 	imply DM_VIDEO
+	imply SYSRESET
+	imply SYSRESET_X86
 	imply CMD_FPGA_LOADMK
 	imply CMD_GETTIME
 	imply CMD_IO

arch/x86/cpu/baytrail/valleyview.c

@@ -55,9 +55,3 @@ int arch_misc_init(void)
 
 	return 0;
 }
-
-void reset_cpu(ulong addr)
-{
-	/* cold reset */
-	x86_full_reset();
-}

arch/x86/cpu/braswell/braswell.c

@@ -27,9 +27,3 @@ int arch_misc_init(void)
 
 	return 0;
 }
-
-void reset_cpu(ulong addr)
-{
-	/* cold reset */
-	x86_full_reset();
-}

arch/x86/cpu/cpu.c

@@ -75,37 +75,11 @@ int x86_init_cache(void)
 }
 int init_cache(void) __attribute__((weak, alias("x86_init_cache")));
 
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
-{
-	printf("resetting ...\n");
-
-	/* wait 50 ms */
-	udelay(50000);
-	disable_interrupts();
-	reset_cpu(0);
-
-	/*NOTREACHED*/
-	return 0;
-}
-
 void  flush_cache(unsigned long dummy1, unsigned long dummy2)
 {
 	asm("wbinvd\n");
 }
 
-__weak void reset_cpu(ulong addr)
-{
-	/* Do a hard reset through the chipset's reset control register */
-	outb(SYS_RST | RST_CPU, IO_PORT_RESET);
-	for (;;)
-		cpu_hlt();
-}
-
-void x86_full_reset(void)
-{
-	outb(FULL_RST | SYS_RST | RST_CPU, IO_PORT_RESET);
-}
-
 /* Define these functions to allow ehch-hcd to function */
 void flush_dcache_range(unsigned long start, unsigned long stop)
 {

arch/x86/cpu/ivybridge/early_me.c

@@ -8,6 +8,7 @@
 #include <common.h>
 #include <dm.h>
 #include <errno.h>
+#include <sysreset.h>
 #include <asm/pci.h>
 #include <asm/cpu.h>
 #include <asm/processor.h>
@@ -138,17 +139,17 @@ int intel_early_me_init_done(struct udevice *dev, struct udevice *me_dev,
 	case ME_HFS_ACK_RESET:
 		/* Non-power cycle reset */
 		set_global_reset(dev, 0);
-		reset_cpu(0);
+		sysreset_walk_halt(SYSRESET_COLD);
 		break;
 	case ME_HFS_ACK_PWR_CYCLE:
 		/* Power cycle reset */
 		set_global_reset(dev, 0);
-		x86_full_reset();
+		sysreset_walk_halt(SYSRESET_COLD);
 		break;
 	case ME_HFS_ACK_GBL_RESET:
 		/* Global reset */
 		set_global_reset(dev, 1);
-		x86_full_reset();
+		sysreset_walk_halt(SYSRESET_COLD);
 		break;
 	case ME_HFS_ACK_S3:
 	case ME_HFS_ACK_S4:

arch/x86/cpu/ivybridge/sdram.c

@@ -18,6 +18,7 @@
 #include <spi.h>
 #include <spi_flash.h>
 #include <syscon.h>
+#include <sysreset.h>
 #include <asm/cpu.h>
 #include <asm/processor.h>
 #include <asm/gpio.h>
@@ -497,7 +498,7 @@ int dram_init(void)
 	/* If MRC data is not found we cannot continue S3 resume. */
 	if (pei_data->boot_mode == PEI_BOOT_RESUME && !pei_data->mrc_input) {
 		debug("Giving up in sdram_initialize: No MRC data\n");
-		reset_cpu(0);
+		sysreset_walk_halt(SYSRESET_COLD);
 	}
 
 	/* Pass console handler in pei_data */

arch/x86/cpu/qemu/qemu.c

@@ -156,12 +156,6 @@ int print_cpuinfo(void)
 }
 #endif
 
-void reset_cpu(ulong addr)
-{
-	/* cold reset */
-	x86_full_reset();
-}
-
 int arch_early_init_r(void)
 {
 	qemu_chipset_init();

arch/x86/cpu/quark/quark.c

@@ -270,12 +270,6 @@ int print_cpuinfo(void)
 	return default_print_cpuinfo();
 }
 
-void reset_cpu(ulong addr)
-{
-	/* cold reset */
-	x86_full_reset();
-}
-
 static void quark_pcie_init(void)
 {
 	u32 val;

arch/x86/cpu/tangier/tangier.c

@@ -4,7 +4,6 @@
  */
 
 #include <common.h>
-#include <asm/scu.h>
 #include <asm/u-boot-x86.h>
 
 /*
@@ -24,8 +23,3 @@ int print_cpuinfo(void)
 {
 	return default_print_cpuinfo();
 }
-
-void reset_cpu(ulong addr)
-{
-	scu_ipc_simple_command(IPCMSG_COLD_RESET, 0);
-}

arch/x86/dts/bayleybay.dts

@@ -12,6 +12,7 @@
 /include/ "skeleton.dtsi"
 /include/ "keyboard.dtsi"
 /include/ "serial.dtsi"
+/include/ "reset.dtsi"
 /include/ "rtc.dtsi"
 /include/ "tsc_timer.dtsi"
 /include/ "coreboot_fb.dtsi"

arch/x86/dts/baytrail_som-db5800-som-6867.dts

@@ -12,6 +12,7 @@
 
 /include/ "skeleton.dtsi"
 /include/ "serial.dtsi"
+/include/ "reset.dtsi"
 /include/ "rtc.dtsi"
 /include/ "tsc_timer.dtsi"
 

arch/x86/dts/broadwell_som-6896.dts

@@ -2,6 +2,7 @@
 
 /include/ "skeleton.dtsi"
 /include/ "serial.dtsi"
+/include/ "reset.dtsi"
 /include/ "rtc.dtsi"
 /include/ "tsc_timer.dtsi"
 /include/ "coreboot_fb.dtsi"

arch/x86/dts/cherryhill.dts

@@ -10,6 +10,7 @@
 
 /include/ "skeleton.dtsi"
 /include/ "serial.dtsi"
+/include/ "reset.dtsi"
 /include/ "rtc.dtsi"
 /include/ "tsc_timer.dtsi"
 

arch/x86/dts/chromebook_link.dts

@@ -5,6 +5,7 @@
 /include/ "skeleton.dtsi"
 /include/ "keyboard.dtsi"
 /include/ "serial.dtsi"
+/include/ "reset.dtsi"
 /include/ "rtc.dtsi"
 /include/ "tsc_timer.dtsi"
 /include/ "coreboot_fb.dtsi"

arch/x86/dts/chromebook_samus.dts

@@ -5,6 +5,7 @@
 /include/ "skeleton.dtsi"
 /include/ "keyboard.dtsi"
 /include/ "serial.dtsi"
+/include/ "reset.dtsi"
 /include/ "rtc.dtsi"
 /include/ "tsc_timer.dtsi"
 /include/ "coreboot_fb.dtsi"

arch/x86/dts/chromebox_panther.dts

@@ -2,6 +2,7 @@
 
 /include/ "skeleton.dtsi"
 /include/ "serial.dtsi"
+/include/ "reset.dtsi"
 /include/ "rtc.dtsi"
 /include/ "tsc_timer.dtsi"
 /include/ "coreboot_fb.dtsi"

arch/x86/dts/conga-qeval20-qa3-e3845.dts

@@ -12,6 +12,7 @@
 
 /include/ "skeleton.dtsi"
 /include/ "serial.dtsi"
+/include/ "reset.dtsi"
 /include/ "rtc.dtsi"
 /include/ "tsc_timer.dtsi"
 

arch/x86/dts/cougarcanyon2.dts

@@ -10,6 +10,7 @@
 /include/ "skeleton.dtsi"
 /include/ "serial.dtsi"
 /include/ "keyboard.dtsi"
+/include/ "reset.dtsi"
 /include/ "rtc.dtsi"
 /include/ "tsc_timer.dtsi"
 

arch/x86/dts/crownbay.dts

@@ -10,6 +10,7 @@
 /include/ "skeleton.dtsi"
 /include/ "serial.dtsi"
 /include/ "keyboard.dtsi"
+/include/ "reset.dtsi"
 /include/ "rtc.dtsi"
 /include/ "tsc_timer.dtsi"
 

arch/x86/dts/dfi-bt700.dtsi

@@ -9,6 +9,7 @@
 #include <dt-bindings/interrupt-router/intel-irq.h>
 
 #include "skeleton.dtsi"
+#include "reset.dtsi"
 #include "rtc.dtsi"
 #include "tsc_timer.dtsi"
 

arch/x86/dts/edison.dts

@@ -85,4 +85,9 @@
 		compatible = "intel,scu-ipc";
 		reg = <0xff009000 0x1000>;
 	};
+
+	reset {
+		compatible = "intel,reset-tangier";
+		u-boot,dm-pre-reloc;
+	};
 };

arch/x86/dts/efi-x86_app.dts

@@ -23,4 +23,9 @@
 	serial: serial {
 		compatible = "efi,uart";
 	};
+
+	reset {
+		compatible = "efi,reset";
+		u-boot,dm-pre-reloc;
+	};
 };

arch/x86/dts/efi-x86_payload.dts

@@ -10,6 +10,7 @@
 /include/ "skeleton.dtsi"
 /include/ "serial.dtsi"
 /include/ "keyboard.dtsi"
+/include/ "reset.dtsi"
 /include/ "rtc.dtsi"
 /include/ "tsc_timer.dtsi"
 

arch/x86/dts/galileo.dts

@@ -9,6 +9,7 @@
 #include <dt-bindings/interrupt-router/intel-irq.h>
 
 /include/ "skeleton.dtsi"
+/include/ "reset.dtsi"
 /include/ "rtc.dtsi"
 /include/ "tsc_timer.dtsi"
 

arch/x86/dts/minnowmax.dts

@@ -11,6 +11,7 @@
 
 /include/ "skeleton.dtsi"
 /include/ "serial.dtsi"
+/include/ "reset.dtsi"
 /include/ "rtc.dtsi"
 /include/ "tsc_timer.dtsi"
 /include/ "coreboot_fb.dtsi"

arch/x86/dts/qemu-x86_i440fx.dts

@@ -10,6 +10,7 @@
 /include/ "skeleton.dtsi"
 /include/ "serial.dtsi"
 /include/ "keyboard.dtsi"
+/include/ "reset.dtsi"
 /include/ "rtc.dtsi"
 /include/ "tsc_timer.dtsi"
 

arch/x86/dts/qemu-x86_q35.dts

@@ -20,6 +20,7 @@
 /include/ "skeleton.dtsi"
 /include/ "serial.dtsi"
 /include/ "keyboard.dtsi"
+/include/ "reset.dtsi"
 /include/ "rtc.dtsi"
 /include/ "tsc_timer.dtsi"
 

arch/x86/dts/reset.dtsi

@@ -0,0 +1,6 @@
+/ {
+	reset {
+		compatible = "x86,reset";
+		u-boot,dm-pre-reloc;
+	};
+};

arch/x86/include/asm/processor.h

@@ -43,11 +43,6 @@ enum {
 	FULL_RST	= 1 << 3,	/* full power cycle */
 };
 
-/**
- * x86_full_reset() - reset everything: perform a full power cycle
- */
-void x86_full_reset(void);
-
 static inline __attribute__((always_inline)) void cpu_hlt(void)
 {
 	asm("hlt");

arch/x86/include/asm/u-boot-x86.h

@@ -40,7 +40,6 @@ int x86_cleanup_before_linux(void);
 void x86_enable_caches(void);
 void x86_disable_caches(void);
 int x86_init_cache(void);
-void reset_cpu(ulong addr);
 ulong board_get_usable_ram_top(ulong total_size);
 int default_print_cpuinfo(void);
 

configs/chromebook_link64_defconfig

@@ -4,6 +4,7 @@ CONFIG_SPL_LIBCOMMON_SUPPORT=y
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
 CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_SPL_SERIAL_SUPPORT=y
+CONFIG_SPL_DRIVERS_MISC_SUPPORT=y
 CONFIG_DEBUG_UART_BOARD_INIT=y
 CONFIG_DEBUG_UART_BASE=0x3f8
 CONFIG_DEBUG_UART_CLOCK=1843200