diff options
author | Stefan Reinauer <stepan@coresystems.de> | 2010-01-16 17:53:38 +0000 |
---|---|---|
committer | Stefan Reinauer <stepan@openbios.org> | 2010-01-16 17:53:38 +0000 |
commit | 9fe4d797a37671a65053add3f7cca27397db0b9b (patch) | |
tree | 5cabbdc8b6e7eb970891b55d1ea3727a4a71aca2 /src/arch/i386/include | |
parent | 984e0f3a0c3a82339ef8afcf7f315f377e0c81fc (diff) | |
download | coreboot-9fe4d797a37671a65053add3f7cca27397db0b9b.tar.xz |
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 <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5022 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/arch/i386/include')
-rw-r--r-- | src/arch/i386/include/arch/io.h | 40 | ||||
-rw-r--r-- | src/arch/i386/include/arch/romcc_io.h | 3 |
2 files changed, 42 insertions, 1 deletions
diff --git a/src/arch/i386/include/arch/io.h b/src/arch/i386/include/arch/io.h index 59af68c203..e2e15ec762 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 diff --git a/src/arch/i386/include/arch/romcc_io.h b/src/arch/i386/include/arch/romcc_io.h index fca27c4ec6..738af667eb 100644 --- a/src/arch/i386/include/arch/romcc_io.h +++ b/src/arch/i386/include/arch/romcc_io.h @@ -3,7 +3,7 @@ #include <stdint.h> - +#ifdef __PRE_RAM__ static inline __attribute__((always_inline)) uint8_t read8(unsigned long addr) { return *((volatile uint8_t *)(addr)); @@ -33,6 +33,7 @@ static inline __attribute__((always_inline)) void write32(unsigned long addr, ui { *((volatile uint32_t *)(addr)) = value; } +#endif #if CONFIG_MMCONF_SUPPORT |