> -----Original Message----- > From: Lei Wen [mailto:lei...@marvell.com] > Sent: Thursday, March 31, 2011 2:07 PM > To: Heiko Schocher; Prafulla Wadaskar; Wolfgang Denk; u- > b...@lists.denx.de; Marek Vasut; Ashish Karkare; Prabhanjan Sarnaik; Yu > Tang; adrian.w...@gmail.com > Subject: [PATCH V6 5/5] I2C: add i2c support for Armada100 platform > > Add i2c support to aspenite board with Armada100 soc. > > Signed-off-by: Lei Wen <lei...@marvell.com> > --- > Changelog: > V2: > NO CHANGE > > V3: > clean code style issue > > V4: > V5: > NO CHANGE > > V6: > Move the CONFIG_CMD_I2C define place > > arch/arm/cpu/arm926ejs/armada100/cpu.c | 16 +++++++++++ > arch/arm/include/asm/arch-armada100/mfp.h | 40 ++++++++++++++++------ > ------- > board/Marvell/aspenite/aspenite.c | 5 +++ > include/configs/aspenite.h | 14 ++++++++++ > 4 files changed, 57 insertions(+), 18 deletions(-) > > diff --git a/arch/arm/cpu/arm926ejs/armada100/cpu.c > b/arch/arm/cpu/arm926ejs/armada100/cpu.c > index 62aa175..c21938e 100644 > --- a/arch/arm/cpu/arm926ejs/armada100/cpu.c > +++ b/arch/arm/cpu/arm926ejs/armada100/cpu.c > @@ -62,6 +62,16 @@ int arch_cpu_init(void) > /* Enable GPIO clock */ > writel(APBC_APBCLK, &apb1clkres->gpio); > > +#ifdef CONFIG_I2C_MV > + /* Enable general I2C clock */ > + writel(APBC_RST | APBC_FNCLK | APBC_APBCLK, &apb1clkres->twsi0); > + writel(APBC_FNCLK | APBC_APBCLK, &apb1clkres->twsi0); > + > + /* Enable power I2C clock */ > + writel(APBC_RST | APBC_FNCLK | APBC_APBCLK, &apb1clkres->twsi1); > + writel(APBC_FNCLK | APBC_APBCLK, &apb1clkres->twsi1); > +#endif > + > /* > * Enable Functional and APB clock at 14.7456MHz > * for configured UART console > @@ -90,3 +100,9 @@ int print_cpuinfo(void) > return 0; > } > #endif > + > +#ifdef CONFIG_I2C_MV > +void i2c_clk_enable(void) > +{ > +} > +#endif > diff --git a/arch/arm/include/asm/arch-armada100/mfp.h > b/arch/arm/include/asm/arch-armada100/mfp.h > index d21a79f..73783a7 100644 > --- a/arch/arm/include/asm/arch-armada100/mfp.h > +++ b/arch/arm/include/asm/arch-armada100/mfp.h > @@ -37,28 +37,32 @@ > * offset, pull,pF, drv,dF, edge,eF ,afn,aF > */ > /* UART1 */ > -#define MFP107_UART1_TXD MFP_REG(0x01ac) | MFP_AF1 | MFP_DRIVE_FAST > -#define MFP107_UART1_RXD MFP_REG(0x01ac) | MFP_AF2 | MFP_DRIVE_FAST > -#define MFP108_UART1_RXD MFP_REG(0x01b0) | MFP_AF1 | MFP_DRIVE_FAST > -#define MFP108_UART1_TXD MFP_REG(0x01b0) | MFP_AF2 | MFP_DRIVE_FAST > -#define MFP109_UART1_CTS MFP_REG(0x01b4) | MFP_AF1 | MFP_DRIVE_MEDIUM > -#define MFP109_UART1_RTS MFP_REG(0x01b4) | MFP_AF2 | MFP_DRIVE_MEDIUM > -#define MFP110_UART1_RTS MFP_REG(0x01b8) | MFP_AF1 | MFP_DRIVE_MEDIUM > -#define MFP110_UART1_CTS MFP_REG(0x01b8) | MFP_AF2 | MFP_DRIVE_MEDIUM > -#define MFP111_UART1_RI MFP_REG(0x01bc) | MFP_AF1 | > MFP_DRIVE_MEDIUM > -#define MFP111_UART1_DSR MFP_REG(0x01bc) | MFP_AF2 | MFP_DRIVE_MEDIUM > -#define MFP112_UART1_DTR MFP_REG(0x01c0) | MFP_AF1 | MFP_DRIVE_MEDIUM > -#define MFP112_UART1_DCD MFP_REG(0x01c0) | MFP_AF2 | MFP_DRIVE_MEDIUM > +#define MFP107_UART1_TXD (MFP_REG(0x01ac) | MFP_AF1 | MFP_DRIVE_FAST) > +#define MFP107_UART1_RXD (MFP_REG(0x01ac) | MFP_AF2 | MFP_DRIVE_FAST) > +#define MFP108_UART1_RXD (MFP_REG(0x01b0) | MFP_AF1 | MFP_DRIVE_FAST) > +#define MFP108_UART1_TXD (MFP_REG(0x01b0) | MFP_AF2 | MFP_DRIVE_FAST) > +#define MFP109_UART1_CTS (MFP_REG(0x01b4) | MFP_AF1 | MFP_DRIVE_MEDIUM) > +#define MFP109_UART1_RTS (MFP_REG(0x01b4) | MFP_AF2 | MFP_DRIVE_MEDIUM) > +#define MFP110_UART1_RTS (MFP_REG(0x01b8) | MFP_AF1 | MFP_DRIVE_MEDIUM) > +#define MFP110_UART1_CTS (MFP_REG(0x01b8) | MFP_AF2 | MFP_DRIVE_MEDIUM) > +#define MFP111_UART1_RI (MFP_REG(0x01bc) | MFP_AF1 | > MFP_DRIVE_MEDIUM) > +#define MFP111_UART1_DSR (MFP_REG(0x01bc) | MFP_AF2 | MFP_DRIVE_MEDIUM) > +#define MFP112_UART1_DTR (MFP_REG(0x01c0) | MFP_AF1 | MFP_DRIVE_MEDIUM) > +#define MFP112_UART1_DCD (MFP_REG(0x01c0) | MFP_AF2 | MFP_DRIVE_MEDIUM) > > /* UART2 */ > -#define MFP47_UART2_RXD MFP_REG(0x0028) | MFP_AF6 | > MFP_DRIVE_MEDIUM > -#define MFP48_UART2_TXD MFP_REG(0x002c) | MFP_AF6 | > MFP_DRIVE_MEDIUM > -#define MFP88_UART2_RXD MFP_REG(0x0160) | MFP_AF2 | > MFP_DRIVE_MEDIUM > -#define MFP89_UART2_TXD MFP_REG(0x0164) | MFP_AF2 | > MFP_DRIVE_MEDIUM > +#define MFP47_UART2_RXD (MFP_REG(0x0028) | MFP_AF6 | > MFP_DRIVE_MEDIUM) > +#define MFP48_UART2_TXD (MFP_REG(0x002c) | MFP_AF6 | > MFP_DRIVE_MEDIUM) > +#define MFP88_UART2_RXD (MFP_REG(0x0160) | MFP_AF2 | > MFP_DRIVE_MEDIUM) > +#define MFP89_UART2_TXD (MFP_REG(0x0164) | MFP_AF2 | > MFP_DRIVE_MEDIUM) > > /* UART3 */ > -#define MFPO8_UART3_RXD MFP_REG(0x06c) | MFP_AF2 | > MFP_DRIVE_MEDIUM > -#define MFPO9_UART3_TXD MFP_REG(0x070) | MFP_AF2 | > MFP_DRIVE_MEDIUM > +#define MFPO8_UART3_RXD (MFP_REG(0x06c) | MFP_AF2 | > MFP_DRIVE_MEDIUM) > +#define MFPO9_UART3_TXD (MFP_REG(0x070) | MFP_AF2 | > MFP_DRIVE_MEDIUM) > + > +/* I2c */ > +#define MFP105_CI2C_SDA (MFP_REG(0x1a4) | MFP_AF1 | > MFP_DRIVE_MEDIUM) > +#define MFP106_CI2C_SCL (MFP_REG(0x1a8) | MFP_AF1 | > MFP_DRIVE_MEDIUM) > > /* More macros can be defined here... */ > > diff --git a/board/Marvell/aspenite/aspenite.c > b/board/Marvell/aspenite/aspenite.c > index 046ffd6..34ac7aa 100644 > --- a/board/Marvell/aspenite/aspenite.c > +++ b/board/Marvell/aspenite/aspenite.c > @@ -33,9 +33,14 @@ DECLARE_GLOBAL_DATA_PTR; > int board_early_init_f(void) > { > u32 mfp_cfg[] = { > + /* I2C */ > + MFP105_CI2C_SDA, > + MFP106_CI2C_SCL, > + > /* Enable Console on UART1 */ > MFP107_UART1_RXD, > MFP108_UART1_TXD, > + > MFP_EOC /*End of configureation*/ > }; > /* configure MFP's */ > diff --git a/include/configs/aspenite.h b/include/configs/aspenite.h > index fd35f3e..b25e40b 100644 > --- a/include/configs/aspenite.h > +++ b/include/configs/aspenite.h > @@ -52,6 +52,7 @@ > */ > #define CONFIG_SYS_NO_FLASH /* Declare no flash (NOR/SPI) */ > #include <config_cmd_default.h> > +#define CONFIG_CMD_I2C > #define CONFIG_CMD_AUTOSCRIPT > #undef CONFIG_CMD_NET > #undef CONFIG_CMD_NFS > @@ -63,6 +64,19 @@ > #undef CONFIG_ARCH_MISC_INIT > > /* > + * I2C definition > + */ > +#ifdef CONFIG_CMD_I2C > +#define CONFIG_I2C_MV 1 > +#define CONFIG_PXA_I2C_NUM 2 > +#define CONFIG_I2C_MULTI_BUS 1 > +#define CONFIG_PXA_I2C_REG {0xd4011000, 0xd4025000} > +#define CONFIG_HARD_I2C 1 > +#define CONFIG_SYS_I2C_SPEED 0 > +#define CONFIG_SYS_I2C_SLAVE 0xfe > +#endif
This should go to arch/config.h Regards.. Prafulla . . _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
