2 files changed, 92 insertions, 0 deletions

diff --git a/include/dt-bindings/clock/mpc512x-clock.h b/include/dt-bindings/clock/mpc512x-clock.h
new file mode 100644
index 000000000000..4f94919327ce
--- /dev/null
+++ b/include/dt-bindings/clock/mpc512x-clock.h
@@ -0,0 +1,76 @@
+/*
+ * This header provides constants for MPC512x clock specs in DT bindings.
+ */
+
+#ifndef _DT_BINDINGS_CLOCK_MPC512x_CLOCK_H
+#define _DT_BINDINGS_CLOCK_MPC512x_CLOCK_H
+
+#define MPC512x_CLK_DUMMY               0
+#define MPC512x_CLK_REF                 1
+#define MPC512x_CLK_SYS                 2
+#define MPC512x_CLK_DIU                 3
+#define MPC512x_CLK_VIU                 4
+#define MPC512x_CLK_CSB                 5
+#define MPC512x_CLK_E300                6
+#define MPC512x_CLK_IPS                 7
+#define MPC512x_CLK_FEC                 8
+#define MPC512x_CLK_SATA                9
+#define MPC512x_CLK_PATA                10
+#define MPC512x_CLK_NFC                 11
+#define MPC512x_CLK_LPC                 12
+#define MPC512x_CLK_MBX_BUS             13
+#define MPC512x_CLK_MBX                 14
+#define MPC512x_CLK_MBX_3D              15
+#define MPC512x_CLK_AXE                 16
+#define MPC512x_CLK_USB1                17
+#define MPC512x_CLK_USB2                18
+#define MPC512x_CLK_I2C                 19
+#define MPC512x_CLK_MSCAN0_MCLK         20
+#define MPC512x_CLK_MSCAN1_MCLK         21
+#define MPC512x_CLK_MSCAN2_MCLK         22
+#define MPC512x_CLK_MSCAN3_MCLK         23
+#define MPC512x_CLK_BDLC                24
+#define MPC512x_CLK_SDHC                25
+#define MPC512x_CLK_PCI                 26
+#define MPC512x_CLK_PSC_MCLK_IN         27
+#define MPC512x_CLK_SPDIF_TX            28
+#define MPC512x_CLK_SPDIF_RX            29
+#define MPC512x_CLK_SPDIF_MCLK          30
+#define MPC512x_CLK_SPDIF               31
+#define MPC512x_CLK_AC97                32
+#define MPC512x_CLK_PSC0_MCLK           33
+#define MPC512x_CLK_PSC1_MCLK           34
+#define MPC512x_CLK_PSC2_MCLK           35
+#define MPC512x_CLK_PSC3_MCLK           36
+#define MPC512x_CLK_PSC4_MCLK           37
+#define MPC512x_CLK_PSC5_MCLK           38
+#define MPC512x_CLK_PSC6_MCLK           39
+#define MPC512x_CLK_PSC7_MCLK           40
+#define MPC512x_CLK_PSC8_MCLK           41
+#define MPC512x_CLK_PSC9_MCLK           42
+#define MPC512x_CLK_PSC10_MCLK          43
+#define MPC512x_CLK_PSC11_MCLK          44
+#define MPC512x_CLK_PSC_FIFO            45
+#define MPC512x_CLK_PSC0                46
+#define MPC512x_CLK_PSC1                47
+#define MPC512x_CLK_PSC2                48
+#define MPC512x_CLK_PSC3                49
+#define MPC512x_CLK_PSC4                50
+#define MPC512x_CLK_PSC5                51
+#define MPC512x_CLK_PSC6                52
+#define MPC512x_CLK_PSC7                53
+#define MPC512x_CLK_PSC8                54
+#define MPC512x_CLK_PSC9                55
+#define MPC512x_CLK_PSC10               56
+#define MPC512x_CLK_PSC11               57
+#define MPC512x_CLK_SDHC2               58
+#define MPC512x_CLK_FEC2                59
+#define MPC512x_CLK_OUT0_CLK            60
+#define MPC512x_CLK_OUT1_CLK            61
+#define MPC512x_CLK_OUT2_CLK            62
+#define MPC512x_CLK_OUT3_CLK            63
+#define MPC512x_CLK_CAN_CLK_IN          64
+
+#define MPC512x_CLK_LAST_PUBLIC         64
+
+#endif
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 999b28ba38f7..f1a098a4450c 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -542,6 +542,20 @@ static inline const char *of_clk_get_parent_name(struct device_node *np,
  * for improved portability across platforms
  */
 
+#if IS_ENABLED(CONFIG_PPC)
+
+static inline u32 clk_readl(u32 __iomem *reg)
+{
+        return ioread32be(reg);
+}
+
+static inline void clk_writel(u32 val, u32 __iomem *reg)
+{
+        iowrite32be(val, reg);
+}
+
+#else   /* platform dependent I/O accessors */
+
 static inline u32 clk_readl(u32 __iomem *reg)
 {
         return readl(reg);
@@ -552,5 +566,7 @@ static inline void clk_writel(u32 val, u32 __iomem *reg)
         writel(val, reg);
 }
 
+#endif  /* platform dependent I/O accessors */
+
 #endif /* CONFIG_COMMON_CLK */
 #endif /* CLK_PROVIDER_H */