diff options
| -rw-r--r-- | arch/mips/sgi-ip22/ip22-nvram.c | 24 | ||||
| -rw-r--r-- | arch/mips/sgi-ip22/ip22-time.c | 14 | ||||
| -rw-r--r-- | include/asm-mips/sgi/hpc3.h | 2 | ||||
| -rw-r--r-- | include/asm-mips/sgi/ip22.h | 2 | ||||
| -rw-r--r-- | include/asm-mips/sgi/mc.h | 2 |
5 files changed, 22 insertions, 22 deletions
diff --git a/arch/mips/sgi-ip22/ip22-nvram.c b/arch/mips/sgi-ip22/ip22-nvram.c index fd29fd407ae8..e19d60d5fcc1 100644 --- a/arch/mips/sgi-ip22/ip22-nvram.c +++ b/arch/mips/sgi-ip22/ip22-nvram.c @@ -52,8 +52,7 @@ * national semiconductor nv ram chip the op code is 3 bits and * the address is 6/8 bits. */ -static inline void eeprom_cmd(volatile unsigned int *ctrl, unsigned cmd, - unsigned reg) +static inline void eeprom_cmd(unsigned int *ctrl, unsigned cmd, unsigned reg) { unsigned short ser_cmd; int i; @@ -61,33 +60,34 @@ static inline void eeprom_cmd(volatile unsigned int *ctrl, unsigned cmd, ser_cmd = cmd | (reg << (16 - BITS_IN_COMMAND)); for (i = 0; i < BITS_IN_COMMAND; i++) { if (ser_cmd & (1<<15)) /* if high order bit set */ - *ctrl |= EEPROM_DATO; + writel(readl(ctrl) | EEPROM_DATO, ctrl); else - *ctrl &= ~EEPROM_DATO; - *ctrl &= ~EEPROM_ECLK; - *ctrl |= EEPROM_ECLK; + writel(readl(ctrl) & ~EEPROM_DATO, ctrl); + writel(readl(ctrl) & ~EEPROM_ECLK, ctrl); + writel(readl(ctrl) | EEPROM_ECLK, ctrl); ser_cmd <<= 1; } - *ctrl &= ~EEPROM_DATO; /* see data sheet timing diagram */ + /* see data sheet timing diagram */ + writel(readl(ctrl) & ~EEPROM_DATO, ctrl); } -unsigned short ip22_eeprom_read(volatile unsigned int *ctrl, int reg) +unsigned short ip22_eeprom_read(unsigned int *ctrl, int reg) { unsigned short res = 0; int i; - *ctrl &= ~EEPROM_EPROT; + writel(readl(ctrl) & ~EEPROM_EPROT, ctrl); eeprom_cs_on(ctrl); eeprom_cmd(ctrl, EEPROM_READ, reg); /* clock the data ouf of serial mem */ for (i = 0; i < 16; i++) { - *ctrl &= ~EEPROM_ECLK; + writel(readl(ctrl) & ~EEPROM_ECLK, ctrl); delay(); - *ctrl |= EEPROM_ECLK; + writel(readl(ctrl) | EEPROM_ECLK, ctrl); delay(); res <<= 1; - if (*ctrl & EEPROM_DATI) + if (readl(ctrl) & EEPROM_DATI) res |= 1; } diff --git a/arch/mips/sgi-ip22/ip22-time.c b/arch/mips/sgi-ip22/ip22-time.c index 205554734099..8e88a442b22a 100644 --- a/arch/mips/sgi-ip22/ip22-time.c +++ b/arch/mips/sgi-ip22/ip22-time.c @@ -94,7 +94,7 @@ static int indy_rtc_set_time(unsigned long tim) static unsigned long dosample(void) { u32 ct0, ct1; - volatile u8 msb, lsb; + u8 msb, lsb; /* Start the counter. */ sgint->tcword = (SGINT_TCWORD_CNT2 | SGINT_TCWORD_CALL | @@ -107,21 +107,21 @@ static unsigned long dosample(void) /* Latch and spin until top byte of counter2 is zero */ do { - sgint->tcword = SGINT_TCWORD_CNT2 | SGINT_TCWORD_CLAT; - lsb = sgint->tcnt2; - msb = sgint->tcnt2; + writeb(SGINT_TCWORD_CNT2 | SGINT_TCWORD_CLAT, &sgint->tcword); + lsb = readb(&sgint->tcnt2); + msb = readb(&sgint->tcnt2); ct1 = read_c0_count(); } while (msb); /* Stop the counter. */ - sgint->tcword = (SGINT_TCWORD_CNT2 | SGINT_TCWORD_CALL | - SGINT_TCWORD_MSWST); + writeb(sgint->tcword, (SGINT_TCWORD_CNT2 | SGINT_TCWORD_CALL | + SGINT_TCWORD_MSWST)); /* * Return the difference, this is how far the r4k counter increments * for every 1/HZ seconds. We round off the nearest 1 MHz of master * clock (= 1000000 / HZ / 2). */ - /*return (ct1 - ct0 + (500000/HZ/2)) / (500000/HZ) * (500000/HZ);*/ + return (ct1 - ct0) / (500000/HZ) * (500000/HZ); } diff --git a/include/asm-mips/sgi/hpc3.h b/include/asm-mips/sgi/hpc3.h index fcec52bafb25..c4729f531919 100644 --- a/include/asm-mips/sgi/hpc3.h +++ b/include/asm-mips/sgi/hpc3.h @@ -206,7 +206,7 @@ struct hpc3_regs { #define HPC3_GIOMISC_ERTIME 0x1 /* Enable external timer real time. */ #define HPC3_GIOMISC_DENDIAN 0x2 /* dma descriptor endian, 1=lit 0=big */ - volatile u32 eeprom; /* EEPROM data reg. */ + u32 eeprom; /* EEPROM data reg. */ #define HPC3_EEPROM_EPROT 0x01 /* Protect register enable */ #define HPC3_EEPROM_CSEL 0x02 /* Chip select */ #define HPC3_EEPROM_ECLK 0x04 /* EEPROM clock */ diff --git a/include/asm-mips/sgi/ip22.h b/include/asm-mips/sgi/ip22.h index 6592f3bd1999..f4981c4f16bb 100644 --- a/include/asm-mips/sgi/ip22.h +++ b/include/asm-mips/sgi/ip22.h @@ -72,7 +72,7 @@ #define ip22_is_fullhouse() (sgioc->sysid & SGIOC_SYSID_FULLHOUSE) -extern unsigned short ip22_eeprom_read(volatile unsigned int *ctrl, int reg); +extern unsigned short ip22_eeprom_read(unsigned int *ctrl, int reg); extern unsigned short ip22_nvram_read(int reg); #endif diff --git a/include/asm-mips/sgi/mc.h b/include/asm-mips/sgi/mc.h index c52f7834c7c8..1576c2394de8 100644 --- a/include/asm-mips/sgi/mc.h +++ b/include/asm-mips/sgi/mc.h @@ -57,7 +57,7 @@ struct sgimc_regs { volatile u32 divider; /* Divider reg for RPSS */ u32 _unused5; - volatile u32 eeprom; /* EEPROM byte reg for r4k */ + u32 eeprom; /* EEPROM byte reg for r4k */ #define SGIMC_EEPROM_PRE 0x00000001 /* eeprom chip PRE pin assertion */ #define SGIMC_EEPROM_CSEL 0x00000002 /* Active high, eeprom chip select */ #define SGIMC_EEPROM_SECLOCK 0x00000004 /* EEPROM serial clock */ |