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-rw-r--r--arch/powerpc/include/asm/opal.h7
-rw-r--r--arch/powerpc/kernel/time.c1
-rw-r--r--arch/powerpc/platforms/powernv/opal-async.c3
-rw-r--r--arch/powerpc/platforms/powernv/opal-rtc.c65
-rw-r--r--arch/powerpc/platforms/powernv/opal-wrappers.S2
-rw-r--r--arch/powerpc/platforms/powernv/opal.c6
-rw-r--r--arch/powerpc/platforms/powernv/setup.c2
7 files changed, 36 insertions, 50 deletions
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 5d073e50cac8..60250e2d1f0d 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -154,6 +154,8 @@ struct opal_sg_list {
#define OPAL_HANDLE_HMI 98
#define OPAL_REGISTER_DUMP_REGION 101
#define OPAL_UNREGISTER_DUMP_REGION 102
+#define OPAL_WRITE_TPO 103
+#define OPAL_READ_TPO 104
#define OPAL_IPMI_SEND 107
#define OPAL_IPMI_RECV 108
@@ -832,6 +834,9 @@ int64_t opal_rtc_read(__be32 *year_month_day,
__be64 *hour_minute_second_millisecond);
int64_t opal_rtc_write(uint32_t year_month_day,
uint64_t hour_minute_second_millisecond);
+int64_t opal_tpo_read(uint64_t token, __be32 *year_mon_day, __be32 *hour_min);
+int64_t opal_tpo_write(uint64_t token, uint32_t year_mon_day,
+ uint32_t hour_min);
int64_t opal_cec_power_down(uint64_t request);
int64_t opal_cec_reboot(void);
int64_t opal_read_nvram(uint64_t buffer, uint64_t size, uint64_t offset);
@@ -1009,8 +1014,6 @@ extern int opal_async_wait_response(uint64_t token, struct opal_msg *msg);
extern int opal_get_sensor_data(u32 sensor_hndl, u32 *sensor_data);
struct rtc_time;
-extern int opal_set_rtc_time(struct rtc_time *tm);
-extern void opal_get_rtc_time(struct rtc_time *tm);
extern unsigned long opal_get_boot_time(void);
extern void opal_nvram_init(void);
extern void opal_flash_init(void);
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 9f8ea617ff2c..fa7c4f12104f 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -989,6 +989,7 @@ void GregorianDay(struct rtc_time * tm)
tm->tm_wday = day % 7;
}
+EXPORT_SYMBOL_GPL(GregorianDay);
void to_tm(int tim, struct rtc_time * tm)
{
diff --git a/arch/powerpc/platforms/powernv/opal-async.c b/arch/powerpc/platforms/powernv/opal-async.c
index e462ab947d16..693b6cdac691 100644
--- a/arch/powerpc/platforms/powernv/opal-async.c
+++ b/arch/powerpc/platforms/powernv/opal-async.c
@@ -71,6 +71,7 @@ int opal_async_get_token_interruptible(void)
return token;
}
+EXPORT_SYMBOL_GPL(opal_async_get_token_interruptible);
int __opal_async_release_token(int token)
{
@@ -102,6 +103,7 @@ int opal_async_release_token(int token)
return 0;
}
+EXPORT_SYMBOL_GPL(opal_async_release_token);
int opal_async_wait_response(uint64_t token, struct opal_msg *msg)
{
@@ -120,6 +122,7 @@ int opal_async_wait_response(uint64_t token, struct opal_msg *msg)
return 0;
}
+EXPORT_SYMBOL_GPL(opal_async_wait_response);
static int opal_async_comp_event(struct notifier_block *nb,
unsigned long msg_type, void *msg)
diff --git a/arch/powerpc/platforms/powernv/opal-rtc.c b/arch/powerpc/platforms/powernv/opal-rtc.c
index 499707ddaa9c..37dbee15769f 100644
--- a/arch/powerpc/platforms/powernv/opal-rtc.c
+++ b/arch/powerpc/platforms/powernv/opal-rtc.c
@@ -15,6 +15,8 @@
#include <linux/bcd.h>
#include <linux/rtc.h>
#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/of_platform.h>
#include <asm/opal.h>
#include <asm/firmware.h>
@@ -43,7 +45,7 @@ unsigned long __init opal_get_boot_time(void)
long rc = OPAL_BUSY;
if (!opal_check_token(OPAL_RTC_READ))
- goto out;
+ return 0;
while (rc == OPAL_BUSY || rc == OPAL_BUSY_EVENT) {
rc = opal_rtc_read(&__y_m_d, &__h_m_s_ms);
@@ -53,62 +55,33 @@ unsigned long __init opal_get_boot_time(void)
mdelay(10);
}
if (rc != OPAL_SUCCESS)
- goto out;
+ return 0;
y_m_d = be32_to_cpu(__y_m_d);
h_m_s_ms = be64_to_cpu(__h_m_s_ms);
opal_to_tm(y_m_d, h_m_s_ms, &tm);
return mktime(tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
tm.tm_hour, tm.tm_min, tm.tm_sec);
-out:
- ppc_md.get_rtc_time = NULL;
- ppc_md.set_rtc_time = NULL;
- return 0;
}
-void opal_get_rtc_time(struct rtc_time *tm)
+static __init int opal_time_init(void)
{
- long rc = OPAL_BUSY;
- u32 y_m_d;
- u64 h_m_s_ms;
- __be32 __y_m_d;
- __be64 __h_m_s_ms;
+ struct platform_device *pdev;
+ struct device_node *rtc;
- while (rc == OPAL_BUSY || rc == OPAL_BUSY_EVENT) {
- rc = opal_rtc_read(&__y_m_d, &__h_m_s_ms);
- if (rc == OPAL_BUSY_EVENT)
- opal_poll_events(NULL);
+ rtc = of_find_node_by_path("/ibm,opal/rtc");
+ if (rtc) {
+ pdev = of_platform_device_create(rtc, "opal-rtc", NULL);
+ of_node_put(rtc);
+ } else {
+ if (opal_check_token(OPAL_RTC_READ) ||
+ opal_check_token(OPAL_READ_TPO))
+ pdev = platform_device_register_simple("opal-rtc", -1,
+ NULL, 0);
else
- mdelay(10);
+ return -ENODEV;
}
- if (rc != OPAL_SUCCESS)
- return;
- y_m_d = be32_to_cpu(__y_m_d);
- h_m_s_ms = be64_to_cpu(__h_m_s_ms);
- opal_to_tm(y_m_d, h_m_s_ms, tm);
-}
-
-int opal_set_rtc_time(struct rtc_time *tm)
-{
- long rc = OPAL_BUSY;
- u32 y_m_d = 0;
- u64 h_m_s_ms = 0;
-
- y_m_d |= ((u32)bin2bcd((tm->tm_year + 1900) / 100)) << 24;
- y_m_d |= ((u32)bin2bcd((tm->tm_year + 1900) % 100)) << 16;
- y_m_d |= ((u32)bin2bcd((tm->tm_mon + 1))) << 8;
- y_m_d |= ((u32)bin2bcd(tm->tm_mday));
-
- h_m_s_ms |= ((u64)bin2bcd(tm->tm_hour)) << 56;
- h_m_s_ms |= ((u64)bin2bcd(tm->tm_min)) << 48;
- h_m_s_ms |= ((u64)bin2bcd(tm->tm_sec)) << 40;
- while (rc == OPAL_BUSY || rc == OPAL_BUSY_EVENT) {
- rc = opal_rtc_write(y_m_d, h_m_s_ms);
- if (rc == OPAL_BUSY_EVENT)
- opal_poll_events(NULL);
- else
- mdelay(10);
- }
- return rc == OPAL_SUCCESS ? 0 : -EIO;
+ return PTR_ERR_OR_ZERO(pdev);
}
+machine_subsys_initcall(powernv, opal_time_init);
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S
index 59978af9babe..0a299be588af 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S
@@ -250,5 +250,7 @@ OPAL_CALL(opal_handle_hmi, OPAL_HANDLE_HMI);
OPAL_CALL(opal_register_dump_region, OPAL_REGISTER_DUMP_REGION);
OPAL_CALL(opal_unregister_dump_region, OPAL_UNREGISTER_DUMP_REGION);
OPAL_CALL(opal_pci_set_phb_cxl_mode, OPAL_PCI_SET_PHB_CXL_MODE);
+OPAL_CALL(opal_tpo_write, OPAL_WRITE_TPO);
+OPAL_CALL(opal_tpo_read, OPAL_READ_TPO);
OPAL_CALL(opal_ipmi_send, OPAL_IPMI_SEND);
OPAL_CALL(opal_ipmi_recv, OPAL_IPMI_RECV);
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 0297702e8ae9..a1c37f9d60d2 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -819,3 +819,9 @@ void opal_free_sg_list(struct opal_sg_list *sg)
sg = NULL;
}
}
+
+EXPORT_SYMBOL_GPL(opal_poll_events);
+EXPORT_SYMBOL_GPL(opal_rtc_read);
+EXPORT_SYMBOL_GPL(opal_rtc_write);
+EXPORT_SYMBOL_GPL(opal_tpo_read);
+EXPORT_SYMBOL_GPL(opal_tpo_write);
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c
index 941831d67cb2..30b1c3e298a6 100644
--- a/arch/powerpc/platforms/powernv/setup.c
+++ b/arch/powerpc/platforms/powernv/setup.c
@@ -265,8 +265,6 @@ static unsigned long pnv_memory_block_size(void)
static void __init pnv_setup_machdep_opal(void)
{
ppc_md.get_boot_time = opal_get_boot_time;
- ppc_md.get_rtc_time = opal_get_rtc_time;
- ppc_md.set_rtc_time = opal_set_rtc_time;
ppc_md.restart = pnv_restart;
pm_power_off = pnv_power_off;
ppc_md.halt = pnv_halt;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 11:38:01 +0100