@@ -59,6 +59,12 @@ int arch_cpu_init(void)
/* Enable GPIO clock */
writel(APBC_APBCLK, &apbclkres->gpio);
+#ifdef CONFIG_I2C_MV
+ /* Enable I2C clock */
+ writel(APBC_RST | APBC_FNCLK | APBC_APBCLK, &apbclkres->twsi);
+ writel(APBC_FNCLK | APBC_APBCLK, &apbclkres->twsi);
+#endif
+
icache_enable();
return 0;
@@ -76,3 +82,9 @@ int print_cpuinfo(void)
return 0;
}
#endif
+
+#ifdef CONFIG_I2C_MV
+void i2c_clk_enable(void)
+{
+}
+#endif
@@ -50,7 +50,9 @@ struct panthapb_registers {
u32 uart0; /*0x000*/
u32 uart1; /*0x004*/
u32 gpio; /*0x008*/
- u8 pad0[0x034 - 0x08 - 4];
+ u8 pad0[0x02c - 0x08 - 4];
+ u32 twsi; /*0x02c*/
+ u8 pad1[0x034 - 0x2c - 4];
u32 timers; /*0x034*/
};
@@ -32,8 +32,10 @@
* offset, pull,pF, drv,dF, edge,eF ,afn,aF
*/
/* UART2 */
-#define MFP47_UART2_RXD MFP_REG(0x198) | MFP_AF6 | MFP_DRIVE_MEDIUM
-#define MFP48_UART2_TXD MFP_REG(0x19c) | MFP_AF6 | MFP_DRIVE_MEDIUM
+#define MFP47_UART2_RXD (MFP_REG(0x198) | MFP_AF6 | MFP_DRIVE_MEDIUM)
+#define MFP48_UART2_TXD (MFP_REG(0x19c) | MFP_AF6 | MFP_DRIVE_MEDIUM)
+#define MFP53_CI2C_SCL (MFP_REG(0x1b0) | MFP_AF2 | MFP_DRIVE_MEDIUM)
+#define MFP54_CI2C_SDA (MFP_REG(0x1b4) | MFP_AF2 | MFP_DRIVE_MEDIUM)
/* More macros can be defined here... */
@@ -36,6 +36,10 @@ int board_early_init_f(void)
MFP47_UART2_RXD,
MFP48_UART2_TXD,
+ /* I2C */
+ MFP53_CI2C_SCL,
+ MFP54_CI2C_SDA,
+
MFP_EOC /*End of configureation*/
};
/* configure MFP's */
@@ -56,6 +56,19 @@
#include "mv-common.h"
#undef CONFIG_ARCH_MISC_INIT
+
+/*
+ * I2C definition
+ */
+#define CONFIG_CMD_I2C
+#ifdef CONFIG_CMD_I2C
+#define CONFIG_I2C_MV 1
+#define CONFIG_PXA_I2C_REG 0xd4011000
+#define CONFIG_HARD_I2C 1
+#define CONFIG_SYS_I2C_SPEED 0
+#define CONFIG_SYS_I2C_SLAVE 0xfe
+#endif
+
/*
* Environment variables configurations
*/
Add i2c support to dkb board with pantheon soc. Signed-off-by: Lei Wen <leiwen@marvell.com> --- Changelog: V3: clean code sytle issue Add i2c clock enable code include in I2C configure define block V4: make i2c definition included in the ifdef arch/arm/cpu/arm926ejs/pantheon/cpu.c | 12 ++++++++++++ arch/arm/include/asm/arch-pantheon/cpu.h | 4 +++- arch/arm/include/asm/arch-pantheon/mfp.h | 6 ++++-- board/Marvell/dkb/dkb.c | 4 ++++ include/configs/dkb.h | 13 +++++++++++++ 5 files changed, 36 insertions(+), 3 deletions(-)