diff options
| author | Tom Rini <trini@ti.com> | 2013-07-24 09:22:28 -0400 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-07-24 09:50:24 -0400 |
| commit | c2120fbfbc4d1f6953228f86be8bdbf38bacfdab (patch) | |
| tree | 14cd8ec9a0a61f7113149be38d79808cd5e955f8 /include/configs/bf533-stamp.h | |
| parent | e85427fd66a21b39145a47e67871a8863c0e5591 (diff) | |
| parent | ecbd7e1ec7280d90d151a99691f74b892588cadd (diff) | |
Merge branch 'master' of git://git.denx.de/u-boot-i2c
The sandburst-specific i2c drivers have been deleted, conflict was just
over the SPDX conversion.
Conflicts:
board/sandburst/common/ppc440gx_i2c.c
board/sandburst/common/ppc440gx_i2c.h
Signed-off-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'include/configs/bf533-stamp.h')
| -rw-r--r-- | include/configs/bf533-stamp.h | 48 |
1 files changed, 43 insertions, 5 deletions
diff --git a/include/configs/bf533-stamp.h b/include/configs/bf533-stamp.h index e3344e9e85..7144c6319f 100644 --- a/include/configs/bf533-stamp.h +++ b/include/configs/bf533-stamp.h @@ -14,7 +14,6 @@ #define CONFIG_BFIN_CPU bf533-0.3 #define CONFIG_BFIN_BOOT_MODE BFIN_BOOT_BYPASS - /* * Clock Settings * CCLK = (CLKIN * VCO_MULT) / CCLK_DIV @@ -38,7 +37,6 @@ /* Values can range from 1-15 */ #define CONFIG_SCLK_DIV 6 /* note: 1.2 boards can go faster */ - /* * Memory Settings */ @@ -74,6 +72,42 @@ /* #define CONFIG_ETHADDR 02:80:ad:20:31:b8 */ +/* I2C */ +#define CONFIG_SYS_I2C +#define CONFIG_SYS_I2C_SOFT /* I2C bit-banged */ +#define CONFIG_SYS_I2C_SOFT_SPEED 50000 +#define CONFIG_SYS_I2C_SOFT_SLAVE 0 +/* + * Software (bit-bang) I2C driver configuration + */ +#define PF_SCL PF3 +#define PF_SDA PF2 +#define I2C_INIT (*pFIO_DIR |= PF_SCL); asm("ssync;") +#define I2C_ACTIVE (*pFIO_DIR |= PF_SDA); \ + *pFIO_INEN &= ~PF_SDA; asm("ssync;") +#define I2C_TRISTATE (*pFIO_DIR &= ~PF_SDA); \ + *pFIO_INEN |= PF_SDA; asm("ssync;") +#define I2C_READ ((volatile)(*pFIO_FLAG_D & PF_SDA) != 0); \ + asm("ssync;") +#define I2C_SDA(bit) if (bit) { \ + *pFIO_FLAG_S = PF_SDA; \ + asm("ssync;"); \ + } \ + else { \ + *pFIO_FLAG_C = PF_SDA; \ + asm("ssync;"); \ + } +#define I2C_SCL(bit) if (bit) { \ + *pFIO_FLAG_S = PF_SCL; \ + asm("ssync;"); \ + } \ + else { \ + *pFIO_FLAG_C = PF_SCL; \ + asm("ssync;"); \ + } +#define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */ + + /* * Flash Settings */ @@ -84,7 +118,6 @@ #define CONFIG_SYS_MAX_FLASH_BANKS 1 #define CONFIG_SYS_MAX_FLASH_SECT 67 - /* * SPI Settings */ @@ -132,10 +165,15 @@ /* * I2C Settings */ -#define CONFIG_SOFT_I2C +#define CONFIG_SYS_I2C_SOFT +#ifdef CONFIG_SYS_I2C_SOFT +#define CONFIG_SYS_I2C #define CONFIG_SOFT_I2C_GPIO_SCL GPIO_PF3 #define CONFIG_SOFT_I2C_GPIO_SDA GPIO_PF2 - +#define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */ +#define CONFIG_SYS_I2C_SOFT_SPEED 50000 +#define CONFIG_SYS_I2C_SOFT_SLAVE 0 +#endif /* * Compact Flash / IDE / ATA Settings |