[src/trunk]: src/sys/arch/arm/fdt Support using EFI runtime services for RTC ...

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/a2ee4ec7368f
branches:  trunk
changeset: 955753:a2ee4ec7368f
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Sat Oct 10 15:34:05 2020 +0000

description:
Support using EFI runtime services for RTC when booting in devicetree mode.

diffstat:

 sys/arch/arm/fdt/acpi_fdt.c |  87 +------------------------------------------
 sys/arch/arm/fdt/arm_fdt.c  |  90 ++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 90 insertions(+), 87 deletions(-)

diffs (260 lines):

diff -r b4dda58d7b5e -r a2ee4ec7368f sys/arch/arm/fdt/acpi_fdt.c
--- a/sys/arch/arm/fdt/acpi_fdt.c       Sat Oct 10 15:25:30 2020 +0000
+++ b/sys/arch/arm/fdt/acpi_fdt.c       Sat Oct 10 15:34:05 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: acpi_fdt.c,v 1.15 2020/09/15 10:33:58 jmcneill Exp $ */
+/* $NetBSD: acpi_fdt.c,v 1.16 2020/10/10 15:34:05 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2015-2017 Jared McNeill <jmcneill%invisible.ca@localhost>
@@ -30,7 +30,7 @@
 #include "opt_efi.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: acpi_fdt.c,v 1.15 2020/09/15 10:33:58 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: acpi_fdt.c,v 1.16 2020/10/10 15:34:05 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -54,7 +54,6 @@
 
 #ifdef EFI_RUNTIME
 #include <arm/arm/efi_runtime.h>
-#include <dev/clock_subr.h>
 #endif
 
 static int     acpi_fdt_match(device_t, cfdata_t, void *);
@@ -62,22 +61,12 @@
 
 static void    acpi_fdt_poweroff(device_t);
 
-#ifdef EFI_RUNTIME
-static void    acpi_fdt_efi_init(device_t);
-static int     acpi_fdt_efi_rtc_gettime(todr_chip_handle_t, struct clock_ymdhms *);
-static int     acpi_fdt_efi_rtc_settime(todr_chip_handle_t, struct clock_ymdhms *);
-#endif
-
 static void    acpi_fdt_sysctl_init(void);
 
 extern struct arm32_bus_dma_tag acpi_coherent_dma_tag;
 
 static uint64_t smbios_table = 0;
 
-#ifdef EFI_RUNTIME
-static struct todr_chip_handle efi_todr;
-#endif
-
 static const char * const compatible[] = {
        "netbsd,acpi",
        NULL
@@ -106,10 +95,6 @@
        aprint_naive("\n");
        aprint_normal("\n");
 
-#ifdef EFI_RUNTIME
-       acpi_fdt_efi_init(self);
-#endif
-
        fdtbus_register_power_controller(self, faa->faa_phandle,
            &acpi_fdt_power_funcs);
 
@@ -171,71 +156,3 @@
                    CTL_CREATE, CTL_EOL);
        }
 }
-
-#ifdef EFI_RUNTIME
-static void
-acpi_fdt_efi_init(device_t dev)
-{
-       uint64_t efi_system_table;
-       struct efi_tm tm;
-       int error;
-
-       const int chosen = OF_finddevice("/chosen");
-       if (chosen < 0)
-               return;
-
-       if (of_getprop_uint64(chosen, "netbsd,uefi-system-table", &efi_system_table) != 0)
-               return;
-
-       error = arm_efirt_init(efi_system_table);
-       if (error)
-               return;
-
-       aprint_debug_dev(dev, "EFI system table at %#" PRIx64 "\n", efi_system_table);
-
-       if (arm_efirt_gettime(&tm) == 0) {
-               aprint_normal_dev(dev, "using EFI runtime services for RTC\n");
-               efi_todr.cookie = NULL;
-               efi_todr.todr_gettime_ymdhms = acpi_fdt_efi_rtc_gettime;
-               efi_todr.todr_settime_ymdhms = acpi_fdt_efi_rtc_settime;
-               todr_attach(&efi_todr);
-       }
-}
-
-static int
-acpi_fdt_efi_rtc_gettime(todr_chip_handle_t tch, struct clock_ymdhms *dt)
-{
-       struct efi_tm tm;
-       int error;
-
-       error = arm_efirt_gettime(&tm);
-       if (error)
-               return error;
-
-       dt->dt_year = tm.tm_year;
-       dt->dt_mon = tm.tm_mon;
-       dt->dt_day = tm.tm_mday;
-       dt->dt_wday = 0;
-       dt->dt_hour = tm.tm_hour;
-       dt->dt_min = tm.tm_min;
-       dt->dt_sec = tm.tm_sec;
-
-       return 0;
-}
-
-static int
-acpi_fdt_efi_rtc_settime(todr_chip_handle_t tch, struct clock_ymdhms *dt)
-{
-       struct efi_tm tm;
-
-       memset(&tm, 0, sizeof(tm));
-       tm.tm_year = dt->dt_year;
-       tm.tm_mon = dt->dt_mon;
-       tm.tm_mday = dt->dt_day;
-       tm.tm_hour = dt->dt_hour;
-       tm.tm_min = dt->dt_min;
-       tm.tm_sec = dt->dt_sec;
-
-       return arm_efirt_settime(&tm);
-}
-#endif
diff -r b4dda58d7b5e -r a2ee4ec7368f sys/arch/arm/fdt/arm_fdt.c
--- a/sys/arch/arm/fdt/arm_fdt.c        Sat Oct 10 15:25:30 2020 +0000
+++ b/sys/arch/arm/fdt/arm_fdt.c        Sat Oct 10 15:34:05 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: arm_fdt.c,v 1.11 2020/06/21 17:25:03 jmcneill Exp $ */
+/* $NetBSD: arm_fdt.c,v 1.12 2020/10/10 15:34:05 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2017 Jared D. McNeill <jmcneill%invisible.ca@localhost>
@@ -27,10 +27,11 @@
  */
 
 #include "opt_arm_timer.h"
+#include "opt_efi.h"
 #include "opt_modular.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: arm_fdt.c,v 1.11 2020/06/21 17:25:03 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: arm_fdt.c,v 1.12 2020/10/10 15:34:05 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -47,9 +48,22 @@
 
 #include <arm/fdt/arm_fdtvar.h>
 
+#ifdef EFI_RUNTIME
+#include <arm/arm/efi_runtime.h>
+#include <dev/clock_subr.h>
+#endif
+
 static int     arm_fdt_match(device_t, cfdata_t, void *);
 static void    arm_fdt_attach(device_t, device_t, void *);
 
+#ifdef EFI_RUNTIME
+static void    arm_fdt_efi_init(device_t);
+static int     arm_fdt_efi_rtc_gettime(todr_chip_handle_t, struct clock_ymdhms *);
+static int     arm_fdt_efi_rtc_settime(todr_chip_handle_t, struct clock_ymdhms *);
+
+static struct todr_chip_handle efi_todr;
+#endif
+
 CFATTACH_DECL_NEW(arm_fdt, 0,
     arm_fdt_match, arm_fdt_attach, NULL, NULL);
 
@@ -80,6 +94,10 @@
        aprint_naive("\n");
        aprint_normal("\n");
 
+#ifdef EFI_RUNTIME
+       arm_fdt_efi_init(self);
+#endif
+
        plat->ap_init_attach_args(&faa);
        faa.faa_name = "";
        faa.faa_phandle = OF_peer(0);
@@ -253,3 +271,71 @@
        }
 #endif /* !MODULAR */
 }
+
+#ifdef EFI_RUNTIME
+static void
+arm_fdt_efi_init(device_t dev)
+{
+       uint64_t efi_system_table;
+       struct efi_tm tm;
+       int error;
+
+       const int chosen = OF_finddevice("/chosen");
+       if (chosen < 0)
+               return;
+
+       if (of_getprop_uint64(chosen, "netbsd,uefi-system-table", &efi_system_table) != 0)
+               return;
+
+       error = arm_efirt_init(efi_system_table);
+       if (error)
+               return;
+
+       aprint_debug_dev(dev, "EFI system table at %#" PRIx64 "\n", efi_system_table);
+
+       if (arm_efirt_gettime(&tm) == 0) {
+               aprint_normal_dev(dev, "using EFI runtime services for RTC\n");
+               efi_todr.cookie = NULL;
+               efi_todr.todr_gettime_ymdhms = arm_fdt_efi_rtc_gettime;
+               efi_todr.todr_settime_ymdhms = arm_fdt_efi_rtc_settime;
+               todr_attach(&efi_todr);
+       }
+}
+
+static int
+arm_fdt_efi_rtc_gettime(todr_chip_handle_t tch, struct clock_ymdhms *dt)
+{
+       struct efi_tm tm;
+       int error;
+
+       error = arm_efirt_gettime(&tm);
+       if (error)
+               return error;
+
+       dt->dt_year = tm.tm_year;
+       dt->dt_mon = tm.tm_mon;
+       dt->dt_day = tm.tm_mday;
+       dt->dt_wday = 0;
+       dt->dt_hour = tm.tm_hour;
+       dt->dt_min = tm.tm_min;
+       dt->dt_sec = tm.tm_sec;
+
+       return 0;
+}
+
+static int
+arm_fdt_efi_rtc_settime(todr_chip_handle_t tch, struct clock_ymdhms *dt)
+{
+       struct efi_tm tm;
+
+       memset(&tm, 0, sizeof(tm));
+       tm.tm_year = dt->dt_year;
+       tm.tm_mon = dt->dt_mon;
+       tm.tm_mday = dt->dt_day;
+       tm.tm_hour = dt->dt_hour;
+       tm.tm_min = dt->dt_min;
+       tm.tm_sec = dt->dt_sec;
+
+       return arm_efirt_settime(&tm);
+}
+#endif