diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/include/asm/opal.h | 7 | ||||
| -rw-r--r-- | arch/powerpc/kernel/time.c | 1 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal-async.c | 3 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal-rtc.c | 65 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal-wrappers.S | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal.c | 6 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powernv/setup.c | 2 |
7 files changed, 36 insertions, 50 deletions
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h index 5d073e5..60250e2 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 9f8ea61..fa7c4f1 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 e462ab9..693b6cd 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 499707d..37dbee1 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 59978af..0a299be 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 0297702..a1c37f9 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 941831d..30b1c3e 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; |