diff options
Diffstat (limited to 'board/digsy_mtc/digsy_mtc.c')
| -rw-r--r-- | board/digsy_mtc/digsy_mtc.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/board/digsy_mtc/digsy_mtc.c b/board/digsy_mtc/digsy_mtc.c index 588face..784ba2a 100644 --- a/board/digsy_mtc/digsy_mtc.c +++ b/board/digsy_mtc/digsy_mtc.c @@ -48,6 +48,7 @@ #endif #include <libfdt.h> #include <fdt_support.h> +#include <i2c.h> DECLARE_GLOBAL_DATA_PTR; @@ -207,6 +208,69 @@ int checkboard(void) return 0; } +#if defined(CONFIG_VIDEO) + +#define GPIO_USB1_0 0x00010000 /* Power-On pin */ +#define GPIO_USB1_9 0x08 /* PX_~EN pin */ + +#define GPIO_EE_DO 0x10 /* PSC6_0 (DO) pin */ +#define GPIO_EE_CTS 0x20 /* PSC6_1 (CTS) pin */ +#define GPIO_EE_DI 0x10000000 /* PSC6_2 (DI) pin */ +#define GPIO_EE_CLK 0x20000000 /* PSC6_3 (CLK) pin */ + +#define GPT_GPIO_ON 0x00000034 /* GPT as simple GPIO, high */ + +/* ExBo I2C Addresses */ +#define EXBO_EE_I2C_ADDRESS 0x56 + +static void exbo_hw_init(void) +{ + struct mpc5xxx_gpt *gpt = (struct mpc5xxx_gpt *)MPC5XXX_GPT; + struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO; + struct mpc5xxx_wu_gpio *wu_gpio = + (struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO; + unsigned char val; + + /* 1st, check if extension board is present */ + if (i2c_read(EXBO_EE_I2C_ADDRESS, 0, 1, &val, 1)) + return; + + /* configure IrDA pins (PSC6 port) as gpios */ + gpio->port_config &= 0xFF8FFFFF; + + /* Init for USB1_0, EE_CLK and EE_DI - Low */ + setbits_be32(&gpio->simple_ddr, + GPIO_USB1_0 | GPIO_EE_CLK | GPIO_EE_DI); + clrbits_be32(&gpio->simple_ode, + GPIO_USB1_0 | GPIO_EE_CLK | GPIO_EE_DI); + clrbits_be32(&gpio->simple_dvo, + GPIO_USB1_0 | GPIO_EE_CLK | GPIO_EE_DI); + setbits_be32(&gpio->simple_gpioe, + GPIO_USB1_0 | GPIO_EE_CLK | GPIO_EE_DI); + + /* Init for EE_DO, EE_CTS - Input */ + clrbits_8(&wu_gpio->ddr, GPIO_EE_DO | GPIO_EE_CTS); + setbits_8(&wu_gpio->enable, GPIO_EE_DO | GPIO_EE_CTS); + + /* Init for PX_~EN (USB1_9) - High */ + clrbits_8(&gpio->sint_ode, GPIO_USB1_9); + setbits_8(&gpio->sint_ddr, GPIO_USB1_9); + clrbits_8(&gpio->sint_inten, GPIO_USB1_9); + setbits_8(&gpio->sint_dvo, GPIO_USB1_9); + setbits_8(&gpio->sint_gpioe, GPIO_USB1_9); + + /* Init for ~OE Switch (GPIO3) - Timer_0 GPIO High */ + out_be32(&gpt[0].emsr, GPT_GPIO_ON); + /* Init for S Switch (GPIO4) - Timer_1 GPIO High */ + out_be32(&gpt[1].emsr, GPT_GPIO_ON); + + /* Power-On camera supply */ + setbits_be32(&gpio->simple_dvo, GPIO_USB1_0); +} +#else +static inline void exbo_hw_init(void) {} +#endif /* CONFIG_VIDEO */ + int board_early_init_r(void) { #ifdef CONFIG_MPC52XX_SPI @@ -224,6 +288,8 @@ int board_early_init_r(void) /* enable CS0 */ setbits_be32((void *)MPC5XXX_ADDECR, (1 << 16)); + exbo_hw_init(); + #if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) /* Low level USB init, required for proper kernel operation */ usb_cpu_init(); |