From eec567a67e00d1ed8d941e9098b7d421f4091abf Mon Sep 17 00:00:00 2001 From: TsiChung Liew Date: Tue, 19 Aug 2008 03:01:19 +0600 Subject: [PATCH] ColdFire: I2C fix for multiple platforms Signed-off-by: TsiChung Liew --- cpu/mcf5227x/speed.c | 4 ++++ cpu/mcf523x/cpu_init.c | 4 ++-- cpu/mcf523x/speed.c | 4 ++++ cpu/mcf52x2/cpu_init.c | 12 +++++++++++- cpu/mcf52x2/speed.c | 8 ++++++++ cpu/mcf532x/speed.c | 5 +++++ cpu/mcf5445x/speed.c | 4 ++++ cpu/mcf547x_8x/speed.c | 5 +++++ include/asm-m68k/fsl_i2c.h | 9 --------- include/configs/M5235EVB.h | 7 +++++-- include/configs/M5253DEMO.h | 11 +++++++++++ include/configs/M5275EVB.h | 3 +++ 12 files changed, 62 insertions(+), 14 deletions(-) diff --git a/cpu/mcf5227x/speed.c b/cpu/mcf5227x/speed.c index 78c946f258..0baf9bcd99 100644 --- a/cpu/mcf5227x/speed.c +++ b/cpu/mcf5227x/speed.c @@ -116,5 +116,9 @@ int get_clocks(void) gd->bus_clk = gd->flb_clk; } +#ifdef CONFIG_FSL_I2C + gd->i2c1_clk = gd->bus_clk; +#endif + return (0); } diff --git a/cpu/mcf523x/cpu_init.c b/cpu/mcf523x/cpu_init.c index 55c9cd356d..8ab5b8ed8b 100644 --- a/cpu/mcf523x/cpu_init.c +++ b/cpu/mcf523x/cpu_init.c @@ -110,8 +110,8 @@ void cpu_init_f(void) #endif #ifdef CONFIG_FSL_I2C - gpio->par_feci2c &= ~(GPIO_PAR_FECI2C_SCL_MASK | GPIO_PAR_FECI2C_SDA_MASK); - gpio->par_feci2c |= (GPIO_PAR_FECI2C_SCL_I2CSCL | GPIO_PAR_FECI2C_SDA_I2CSDA); + CFG_I2C_PINMUX_REG &= CFG_I2C_PINMUX_CLR; + CFG_I2C_PINMUX_REG |= CFG_I2C_PINMUX_SET; #endif icache_enable(); diff --git a/cpu/mcf523x/speed.c b/cpu/mcf523x/speed.c index 247d3188bb..1bda2d482e 100644 --- a/cpu/mcf523x/speed.c +++ b/cpu/mcf523x/speed.c @@ -45,5 +45,9 @@ int get_clocks(void) gd->bus_clk = CFG_CLK; gd->cpu_clk = (gd->bus_clk * 2); +#ifdef CONFIG_FSL_I2C + gd->i2c1_clk = gd->bus_clk; +#endif + return (0); } diff --git a/cpu/mcf52x2/cpu_init.c b/cpu/mcf52x2/cpu_init.c index 3cacb55f77..68aefe9151 100644 --- a/cpu/mcf52x2/cpu_init.c +++ b/cpu/mcf52x2/cpu_init.c @@ -80,6 +80,15 @@ void cpu_init_f(void) mbar_writeShort(MCFSIM_CSCR0, CFG_CSCR0); mbar_writeLong(MCFSIM_CSMR0, CFG_CSMR0); +#ifdef CONFIG_FSL_I2C + CFG_I2C_PINMUX_REG = CFG_I2C_PINMUX_REG & CFG_I2C_PINMUX_CLR; + CFG_I2C_PINMUX_REG |= CFG_I2C_PINMUX_SET; +#ifdef CFG_I2C2_OFFSET + CFG_I2C2_PINMUX_REG &= CFG_I2C2_PINMUX_CLR; + CFG_I2C2_PINMUX_REG |= CFG_I2C2_PINMUX_SET; +#endif +#endif + /* enable instruction cache now */ icache_enable(); } @@ -322,7 +331,8 @@ void cpu_init_f(void) #endif /* #ifndef CONFIG_MONITOR_IS_IN_RAM */ #ifdef CONFIG_FSL_I2C - gpio_reg->par_feci2c = 0x000F; + CFG_I2C_PINMUX_REG &= CFG_I2C_PINMUX_CLR; + CFG_I2C_PINMUX_REG |= CFG_I2C_PINMUX_SET; #endif /* enable instruction cache now */ diff --git a/cpu/mcf52x2/speed.c b/cpu/mcf52x2/speed.c index f6edd5b6fa..4cb8f9300d 100644 --- a/cpu/mcf52x2/speed.c +++ b/cpu/mcf52x2/speed.c @@ -82,5 +82,13 @@ int get_clocks (void) #else gd->bus_clk = gd->cpu_clk; #endif + +#ifdef CONFIG_FSL_I2C + gd->i2c1_clk = gd->bus_clk; +#ifdef CFG_I2C2_OFFSET + gd->i2c2_clk = gd->bus_clk; +#endif +#endif + return (0); } diff --git a/cpu/mcf532x/speed.c b/cpu/mcf532x/speed.c index 001b9f42d6..a11e425cab 100644 --- a/cpu/mcf532x/speed.c +++ b/cpu/mcf532x/speed.c @@ -212,5 +212,10 @@ int get_clocks(void) { gd->bus_clk = clock_pll(CFG_CLK / 1000, 0) * 1000; gd->cpu_clk = (gd->bus_clk * 3); + +#ifdef CONFIG_FSL_I2C + gd->i2c1_clk = gd->bus_clk; +#endif + return (0); } diff --git a/cpu/mcf5445x/speed.c b/cpu/mcf5445x/speed.c index f677f3ced0..6711a1d7c8 100644 --- a/cpu/mcf5445x/speed.c +++ b/cpu/mcf5445x/speed.c @@ -209,5 +209,9 @@ int get_clocks(void) #endif } +#ifdef CONFIG_FSL_I2C + gd->i2c1_clk = gd->bus_clk; +#endif + return (0); } diff --git a/cpu/mcf547x_8x/speed.c b/cpu/mcf547x_8x/speed.c index 389e7c99f5..28fe657298 100644 --- a/cpu/mcf547x_8x/speed.c +++ b/cpu/mcf547x_8x/speed.c @@ -39,5 +39,10 @@ int get_clocks(void) gd->bus_clk = CFG_CLK; gd->cpu_clk = (gd->bus_clk * 2); + +#ifdef CONFIG_FSL_I2C + gd->i2c1_clk = gd->bus_clk; +#endif + return (0); } diff --git a/include/asm-m68k/fsl_i2c.h b/include/asm-m68k/fsl_i2c.h index 4f71341327..2bc9bf434e 100644 --- a/include/asm-m68k/fsl_i2c.h +++ b/include/asm-m68k/fsl_i2c.h @@ -72,15 +72,6 @@ typedef struct fsl_i2c { #define I2C_DR 0xFF #define I2C_DR_SHIFT 0 #define I2C_DR_RES ~(I2C_DR) - - u8 dfsrr; /* I2C digital filter sampling rate register */ - u8 res5[3]; -#define I2C_DFSRR 0x3F -#define I2C_DFSRR_SHIFT 0 -#define I2C_DFSRR_RES ~(I2C_DR) - - /* Fill out the reserved block */ - u8 res6[0xE8]; } fsl_i2c_t; #endif /* _ASM_I2C_H_ */ diff --git a/include/configs/M5235EVB.h b/include/configs/M5235EVB.h index e8361321f1..b32eabe9a3 100644 --- a/include/configs/M5235EVB.h +++ b/include/configs/M5235EVB.h @@ -102,12 +102,15 @@ /* I2C */ #define CONFIG_FSL_I2C -#define CONFIG_HARD_I2C /* I2C with hw support */ -#undef CONFIG_SOFT_I2C /* I2C bit-banged */ +#define CONFIG_HARD_I2C /* I2C with hw support */ +#undef CONFIG_SOFT_I2C /* I2C bit-banged */ #define CFG_I2C_SPEED 80000 #define CFG_I2C_SLAVE 0x7F #define CFG_I2C_OFFSET 0x00000300 #define CFG_IMMR CFG_MBAR +#define CFG_I2C_PINMUX_REG (gpio->par_qspi) +#define CFG_I2C_PINMUX_CLR ~(GPIO_PAR_FECI2C_SCL_MASK | GPIO_PAR_FECI2C_SDA_MASK) +#define CFG_I2C_PINMUX_SET (GPIO_PAR_FECI2C_SCL_I2CSCL | GPIO_PAR_FECI2C_SDA_I2CSDA) /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */ #define CONFIG_BOOTDELAY 1 /* autoboot after 5 seconds */ diff --git a/include/configs/M5253DEMO.h b/include/configs/M5253DEMO.h index f2c2317f50..9f78f6ebc8 100644 --- a/include/configs/M5253DEMO.h +++ b/include/configs/M5253DEMO.h @@ -118,6 +118,17 @@ #define CONFIG_HOSTNAME M5253DEMO +/* I2C */ +#define CONFIG_FSL_I2C +#define CONFIG_HARD_I2C /* I2C with hw support */ +#define CFG_I2C_SPEED 80000 +#define CFG_I2C_SLAVE 0x7F +#define CFG_I2C_OFFSET 0x00000280 +#define CFG_IMMR CFG_MBAR +#define CFG_I2C_PINMUX_REG (*(u32 *) (CFG_MBAR+0x19C)) +#define CFG_I2C_PINMUX_CLR (0xFFFFE7FF) +#define CFG_I2C_PINMUX_SET (0) + #define CFG_PROMPT "=> " #define CFG_LONGHELP /* undef to save memory */ diff --git a/include/configs/M5275EVB.h b/include/configs/M5275EVB.h index c1750b532a..430af6bfa2 100644 --- a/include/configs/M5275EVB.h +++ b/include/configs/M5275EVB.h @@ -118,6 +118,9 @@ #define CFG_I2C_SLAVE 0x7F #define CFG_I2C_OFFSET 0x00000300 #define CFG_IMMR CFG_MBAR +#define CFG_I2C_PINMUX_REG (gpio_reg->par_feci2c) +#define CFG_I2C_PINMUX_CLR (0xFFF0) +#define CFG_I2C_PINMUX_SET (0x000F) #ifdef CONFIG_MCFFEC #define CONFIG_ETHADDR 00:06:3b:01:41:55