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| author | Lei Wen <[leiwen@marvell.com]> | 2011-04-13 23:48:44 +0530 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2011-04-27 19:38:08 +0200 |
| commit | 81a9ab21ca4f1af85efd37de7baaad131f0e7edc (patch) | |
| tree | 5f38c429f730b8986e90621e45f97ffd46fe47e7 /arch | |
| parent | adb00bb6a05be8b1a64820becdc052513888b280 (diff) | |
| download | u-boot-imx-81a9ab21ca4f1af85efd37de7baaad131f0e7edc.zip u-boot-imx-81a9ab21ca4f1af85efd37de7baaad131f0e7edc.tar.gz u-boot-imx-81a9ab21ca4f1af85efd37de7baaad131f0e7edc.tar.bz2 | |
I2C: add i2c support for Armada100 platform
Add i2c support to aspenite board with Armada100 soc.
Acked-by: Heiko Schocher <hs@denx.de>
Acked-by: Prafulla Wadaskar <prafulla@marvell.com>
Signed-off-by: Lei Wen <leiwen@marvell.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/cpu/arm926ejs/armada100/cpu.c | 16 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-armada100/config.h | 12 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-armada100/mfp.h | 40 |
3 files changed, 50 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/config.h b/arch/arm/include/asm/arch-armada100/config.h index d804002..1126b38 100644 --- a/arch/arm/include/asm/arch-armada100/config.h +++ b/arch/arm/include/asm/arch-armada100/config.h @@ -40,5 +40,17 @@ #define MV_UART_CONSOLE_BASE ARMD1_UART1_BASE #define CONFIG_SYS_NS16550_IER (1 << 6) /* Bit 6 in UART_IER register represents UART Unit Enable */ +/* + * I2C definition + */ +#ifdef CONFIG_CMD_I2C +#define CONFIG_I2C_MV 1 +#define CONFIG_MV_I2C_NUM 2 +#define CONFIG_I2C_MULTI_BUS 1 +#define CONFIG_MV_I2C_REG {0xd4011000, 0xd4025000} +#define CONFIG_HARD_I2C 1 +#define CONFIG_SYS_I2C_SPEED 0 +#define CONFIG_SYS_I2C_SLAVE 0xfe +#endif #endif /* _ARMD1_CONFIG_H */ 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... */ |