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-rw-r--r--include/asm-ppc/gpio.h8
-rw-r--r--include/asm-ppc/io.h89
-rw-r--r--include/asm-ppc/processor.h15
3 files changed, 74 insertions, 38 deletions
diff --git a/include/asm-ppc/gpio.h b/include/asm-ppc/gpio.h
index 114dc92..c9b6a36 100644
--- a/include/asm-ppc/gpio.h
+++ b/include/asm-ppc/gpio.h
@@ -45,12 +45,14 @@ typedef enum gpio_driver { GPIO_DIS, GPIO_IN, GPIO_OUT, GPIO_BI } gpio_driver_t;
typedef enum gpio_out { GPIO_OUT_0, GPIO_OUT_1, GPIO_OUT_NO_CHG } gpio_out_t;
typedef struct {
- unsigned long add; /* gpio core base address */
- gpio_driver_t in_out; /* Driver Setting */
- gpio_select_t alt_nb; /* Selected Alternate */
+ unsigned long add; /* gpio core base address */
+ gpio_driver_t in_out; /* Driver Setting */
+ gpio_select_t alt_nb; /* Selected Alternate */
+ gpio_out_t out_val;/* Default Output Value */
} gpio_param_s;
#endif
void gpio_config(int pin, int in_out, int gpio_alt, int out_val);
void gpio_write_bit(int pin, int val);
+int gpio_read_out_bit(int pin);
void gpio_set_chip_configuration(void);
diff --git a/include/asm-ppc/io.h b/include/asm-ppc/io.h
index bbc9ba0..03289bc 100644
--- a/include/asm-ppc/io.h
+++ b/include/asm-ppc/io.h
@@ -105,6 +105,11 @@ static inline void sync(void)
__asm__ __volatile__ ("sync" : : : "memory");
}
+static inline void isync(void)
+{
+ __asm__ __volatile__ ("isync" : : : "memory");
+}
+
/* Enforce in-order execution of data I/O.
* No distinction between read/write on PPC; use eieio for all three.
*/
@@ -114,74 +119,90 @@ static inline void sync(void)
/*
* 8, 16 and 32 bit, big and little endian I/O operations, with barrier.
+ *
+ * Read operations have additional twi & isync to make sure the read
+ * is actually performed (i.e. the data has come back) before we start
+ * executing any following instructions.
*/
-extern inline int in_8(volatile u8 *addr)
+#define __iomem
+extern inline int in_8(const volatile unsigned char __iomem *addr)
{
- int ret;
+ int ret;
- __asm__ __volatile__("lbz%U1%X1 %0,%1; eieio" : "=r" (ret) : "m" (*addr));
- return ret;
+ __asm__ __volatile__(
+ "sync; lbz%U1%X1 %0,%1;\n"
+ "twi 0,%0,0;\n"
+ "isync" : "=r" (ret) : "m" (*addr));
+ return ret;
}
-extern inline void out_8(volatile u8 *addr, int val)
+extern inline void out_8(volatile unsigned char __iomem *addr, int val)
{
- __asm__ __volatile__("stb%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
+ __asm__ __volatile__("stb%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
}
-extern inline int in_le16(volatile u16 *addr)
+extern inline int in_le16(const volatile unsigned short __iomem *addr)
{
- int ret;
+ int ret;
- __asm__ __volatile__("lhbrx %0,0,%1; eieio" : "=r" (ret) :
- "r" (addr), "m" (*addr));
- return ret;
+ __asm__ __volatile__("sync; lhbrx %0,0,%1;\n"
+ "twi 0,%0,0;\n"
+ "isync" : "=r" (ret) :
+ "r" (addr), "m" (*addr));
+ return ret;
}
-extern inline int in_be16(volatile u16 *addr)
+extern inline int in_be16(const volatile unsigned short __iomem *addr)
{
- int ret;
+ int ret;
- __asm__ __volatile__("lhz%U1%X1 %0,%1; eieio" : "=r" (ret) : "m" (*addr));
- return ret;
+ __asm__ __volatile__("sync; lhz%U1%X1 %0,%1;\n"
+ "twi 0,%0,0;\n"
+ "isync" : "=r" (ret) : "m" (*addr));
+ return ret;
}
-extern inline void out_le16(volatile u16 *addr, int val)
+extern inline void out_le16(volatile unsigned short __iomem *addr, int val)
{
- __asm__ __volatile__("sthbrx %1,0,%2; eieio" : "=m" (*addr) :
- "r" (val), "r" (addr));
+ __asm__ __volatile__("sync; sthbrx %1,0,%2" : "=m" (*addr) :
+ "r" (val), "r" (addr));
}
-extern inline void out_be16(volatile u16 *addr, int val)
+extern inline void out_be16(volatile unsigned short __iomem *addr, int val)
{
- __asm__ __volatile__("sth%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
+ __asm__ __volatile__("sync; sth%U0%X0 %1,%0" : "=m" (*addr) : "r" (val));
}
-extern inline unsigned in_le32(volatile u32 *addr)
+extern inline unsigned in_le32(const volatile unsigned __iomem *addr)
{
- unsigned ret;
+ unsigned ret;
- __asm__ __volatile__("lwbrx %0,0,%1; eieio" : "=r" (ret) :
- "r" (addr), "m" (*addr));
- return ret;
+ __asm__ __volatile__("sync; lwbrx %0,0,%1;\n"
+ "twi 0,%0,0;\n"
+ "isync" : "=r" (ret) :
+ "r" (addr), "m" (*addr));
+ return ret;
}
-extern inline unsigned in_be32(volatile u32 *addr)
+extern inline unsigned in_be32(const volatile unsigned __iomem *addr)
{
- unsigned ret;
+ unsigned ret;
- __asm__ __volatile__("lwz%U1%X1 %0,%1; eieio" : "=r" (ret) : "m" (*addr));
- return ret;
+ __asm__ __volatile__("sync; lwz%U1%X1 %0,%1;\n"
+ "twi 0,%0,0;\n"
+ "isync" : "=r" (ret) : "m" (*addr));
+ return ret;
}
-extern inline void out_le32(volatile unsigned *addr, int val)
+extern inline void out_le32(volatile unsigned __iomem *addr, int val)
{
- __asm__ __volatile__("stwbrx %1,0,%2; eieio" : "=m" (*addr) :
- "r" (val), "r" (addr));
+ __asm__ __volatile__("sync; stwbrx %1,0,%2" : "=m" (*addr) :
+ "r" (val), "r" (addr));
}
-extern inline void out_be32(volatile unsigned *addr, int val)
+extern inline void out_be32(volatile unsigned __iomem *addr, int val)
{
- __asm__ __volatile__("stw%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
+ __asm__ __volatile__("sync; stw%U0%X0 %1,%0" : "=m" (*addr) : "r" (val));
}
#endif
diff --git a/include/asm-ppc/processor.h b/include/asm-ppc/processor.h
index 5efc3ee..29e6101 100644
--- a/include/asm-ppc/processor.h
+++ b/include/asm-ppc/processor.h
@@ -308,7 +308,7 @@
#define SPRN_SRR0 0x01A /* Save/Restore Register 0 */
#define SPRN_SRR1 0x01B /* Save/Restore Register 1 */
#define SPRN_SRR2 0x3DE /* Save/Restore Register 2 */
-#define SPRN_SRR3 0x3DF /* Save/Restore Register 3 */
+#define SPRN_SRR3 0x3DF /* Save/Restore Register 3 */
#ifdef CONFIG_BOOKE
#define SPRN_SVR 0x3FF /* System Version Register */
#else
@@ -451,6 +451,17 @@
#define SPRN_PID1 0x279 /* Process ID Register 1 */
#define SPRN_PID2 0x27a /* Process ID Register 2 */
#define SPRN_MCSR 0x23c /* Machine Check Syndrome register */
+#ifdef CONFIG_440
+#define MCSR_MCS 0x80000000 /* Machine Check Summary */
+#define MCSR_IB 0x40000000 /* Instruction PLB Error */
+#define MCSR_DRB 0x20000000 /* Data Read PLB Error */
+#define MCSR_DWB 0x10000000 /* Data Write PLB Error */
+#define MCSR_TLBP 0x08000000 /* TLB Parity Error */
+#define MCSR_ICP 0x04000000 /* I-Cache Parity Error */
+#define MCSR_DCSP 0x02000000 /* D-Cache Search Parity Error */
+#define MCSR_DCFP 0x01000000 /* D-Cache Flush Parity Error */
+#define MCSR_IMPE 0x00800000 /* Imprecise Machine Check Exception */
+#endif
#define ESR_ST 0x00800000 /* Store Operation */
#if defined(CONFIG_MPC86xx)
@@ -544,6 +555,8 @@
#define SPRG7 SPRN_SPRG7
#define SRR0 SPRN_SRR0 /* Save and Restore Register 0 */
#define SRR1 SPRN_SRR1 /* Save and Restore Register 1 */
+#define SRR2 SPRN_SRR2 /* Save and Restore Register 2 */
+#define SRR3 SPRN_SRR3 /* Save and Restore Register 3 */
#define SVR SPRN_SVR /* System Version Register */
#define TBRL SPRN_TBRL /* Time Base Read Lower Register */
#define TBRU SPRN_TBRU /* Time Base Read Upper Register */
generated by cgit v1.1 at 2024-11-17 06:46:33 +0000