From 9fe4d797a37671a65053add3f7cca27397db0b9b Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Sat, 16 Jan 2010 17:53:38 +0000 Subject: coreboot used to have two different "APIs" for memory accesses: read32(unsigned long addr) vs readl(void *addr) and write32(unsigned long addr, uint32_t value) vs writel(uint32_t value, void *addr) read32 was only available in __PRE_RAM__ stage, while readl was used in stage2. Some unclean implementations then made readl available to __PRE_RAM__ too which results in really messy includes and code. This patch fixes all code to use the read32/write32 variant, so that we can remove readl/writel in another patch. Signed-off-by: Stefan Reinauer Acked-by: Ronald G. Minnich git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5022 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/arch/i386/include/arch/io.h | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) (limited to 'src/arch/i386/include/arch/io.h') diff --git a/src/arch/i386/include/arch/io.h b/src/arch/i386/include/arch/io.h index 59af68c..e2e15ec 100644 --- a/src/arch/i386/include/arch/io.h +++ b/src/arch/i386/include/arch/io.h @@ -136,6 +136,14 @@ static inline void insl(uint16_t port, void *addr, unsigned long count) ); } +/* XXX XXX XXX This is a story from the evil API from hell XXX XXX XXX + * We have different functions for memory access in pre-ram stage and ram + * stage. Those in pre-ram stage are called write32 and expect the address + * first and the address as a pointer type. Those in ram stage are called + * writel and expect the datum first and the address as an integer type. + * Until all code is checked and fixed, I'll add both versions here now. + */ + static inline void writeb(uint8_t b, volatile void *addr) { *(volatile uint8_t *) addr = b; @@ -166,5 +174,37 @@ static inline uint32_t readl(const volatile void *addr) return *(volatile uint32_t *) addr; } +#if !defined(__PRE_RAM__) +static inline __attribute__((always_inline)) uint8_t read8(unsigned long addr) +{ + return *((volatile uint8_t *)(addr)); +} + +static inline __attribute__((always_inline)) uint16_t read16(unsigned long addr) +{ + return *((volatile uint16_t *)(addr)); +} + +static inline __attribute__((always_inline)) uint32_t read32(unsigned long addr) +{ + return *((volatile uint32_t *)(addr)); +} + +static inline __attribute__((always_inline)) void write8(unsigned long addr, uint8_t value) +{ + *((volatile uint8_t *)(addr)) = value; +} + +static inline __attribute__((always_inline)) void write16(unsigned long addr, uint16_t value) +{ + *((volatile uint16_t *)(addr)) = value; +} + +static inline __attribute__((always_inline)) void write32(unsigned long addr, uint32_t value) +{ + *((volatile uint32_t *)(addr)) = value; +} +#endif + #endif -- cgit v1.1