[PATCH 24/39] powerpc/powernv: Fix endian issues in OPAL RTC driver
From: Anton Blanchard <hidden>
Date: 2013-09-23 02:04:58
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
From: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> --- arch/powerpc/platforms/powernv/opal-rtc.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/arch/powerpc/platforms/powernv/opal-rtc.c b/arch/powerpc/platforms/powernv/opal-rtc.c
index 2aa7641..dbfdba3 100644
--- a/arch/powerpc/platforms/powernv/opal-rtc.c
+++ b/arch/powerpc/platforms/powernv/opal-rtc.c@@ -48,6 +48,8 @@ unsigned long __init opal_get_boot_time(void) } if (rc != OPAL_SUCCESS) 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);
@@ -68,6 +70,8 @@ void opal_get_rtc_time(struct rtc_time *tm) } 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); }
@@ -86,6 +90,9 @@ int opal_set_rtc_time(struct rtc_time *tm) h_m_s_ms |= ((u64)bin2bcd(tm->tm_min)) << 48; h_m_s_ms |= ((u64)bin2bcd(tm->tm_sec)) << 40; + y_m_d = cpu_to_be32(y_m_d); + h_m_s_ms = cpu_to_be64(h_m_s_ms); + while (rc == OPAL_BUSY || rc == OPAL_BUSY_EVENT) { rc = opal_rtc_write(y_m_d, h_m_s_ms); if (rc == OPAL_BUSY_EVENT)
--
1.8.1.2