diff options
Diffstat (limited to 'src/soc/amd/picasso/include')
-rw-r--r-- | src/soc/amd/picasso/include/soc/i2c.h | 18 | ||||
-rw-r--r-- | src/soc/amd/picasso/include/soc/iomap.h | 11 | ||||
-rw-r--r-- | src/soc/amd/picasso/include/soc/southbridge.h | 42 |
3 files changed, 49 insertions, 22 deletions
diff --git a/src/soc/amd/picasso/include/soc/i2c.h b/src/soc/amd/picasso/include/soc/i2c.h index fb9b113c8e..d129fc1f1f 100644 --- a/src/soc/amd/picasso/include/soc/i2c.h +++ b/src/soc/amd/picasso/include/soc/i2c.h @@ -23,24 +23,18 @@ struct soc_amd_i2c_save { uint8_t mux_value; }; -#define GPIO_I2C0_SCL BIT(0) -#define GPIO_I2C1_SCL BIT(1) -#define GPIO_I2C2_SCL BIT(2) -#define GPIO_I2C3_SCL BIT(3) -#define GPIO_I2C_MASK (BIT(0) | BIT(1) | BIT(2) | BIT(3)) - -#define I2C0_SCL_PIN GPIO_145 -#define I2C1_SCL_PIN GPIO_147 +#define GPIO_I2C2_SCL BIT(2) +#define GPIO_I2C3_SCL BIT(3) +#define GPIO_I2C_MASK (BIT(2) | BIT(3)) + #define I2C2_SCL_PIN GPIO_113 #define I2C3_SCL_PIN GPIO_19 -#define GPIO_I2C0_ADDRESS GPIO_BANK2_CONTROL(I2C0_SCL_PIN) -#define GPIO_I2C1_ADDRESS GPIO_BANK2_CONTROL(I2C1_SCL_PIN) #define GPIO_I2C2_ADDRESS GPIO_BANK1_CONTROL(I2C2_SCL_PIN) #define GPIO_I2C3_ADDRESS GPIO_BANK0_CONTROL(I2C3_SCL_PIN) +#define GPIO_SCL_HIGH 0 +#define GPIO_SCL_LOW GPIO_OUTPUT_ENABLE -#define I2C0_SCL_PIN_IOMUX_GPIOxx GPIO_145_IOMUX_GPIOxx -#define I2C1_SCL_PIN_IOMUX_GPIOxx GPIO_147_IOMUX_GPIOxx #define I2C2_SCL_PIN_IOMUX_GPIOxx GPIO_113_IOMUX_GPIOxx #define I2C3_SCL_PIN_IOMUX_GPIOxx GPIO_19_IOMUX_GPIOxx diff --git a/src/soc/amd/picasso/include/soc/iomap.h b/src/soc/amd/picasso/include/soc/iomap.h index 4e11cbd4c8..ad0e7c4609 100644 --- a/src/soc/amd/picasso/include/soc/iomap.h +++ b/src/soc/amd/picasso/include/soc/iomap.h @@ -44,9 +44,16 @@ #define ALINK_AHB_ADDRESS 0xfedc0000 /* I2C fixed address */ -#define I2C_BASE_ADDRESS 0xfedc2000 +#define APU_I2C2_BASE 0xfedc4000 +#define APU_I2C3_BASE 0xfedc5000 +#define APU_I2C4_BASE 0xfedc6000 +#define APU_I2C_MIN_BUS 2 +#define APU_I2C_MAX_BUS 4 +#define APU_I2C_BLOCK_SIZE 0x1000 +#define I2C_BASE_ADDRESS APU_I2C2_BASE #define I2C_DEVICE_SIZE 0x00001000 -#define I2C_DEVICE_COUNT 4 +#define I2C_DEVICE_COUNT 3 + #if CONFIG(HPET_ADDRESS_OVERRIDE) #error HPET address override is not allowed and must be fixed at 0xfed00000 diff --git a/src/soc/amd/picasso/include/soc/southbridge.h b/src/soc/amd/picasso/include/soc/southbridge.h index 8c96aa7f99..803c638164 100644 --- a/src/soc/amd/picasso/include/soc/southbridge.h +++ b/src/soc/amd/picasso/include/soc/southbridge.h @@ -178,13 +178,38 @@ #define BP_X48M0_OUTPUT_EN BIT(2) /* 1=En, unlike Hudson, Kern */ #define OSCOUT1_CLK_OUTPUT_ENB BIT(2) /* 0 = Enabled, 1 = Disabled */ #define OSCOUT2_CLK_OUTPUT_ENB BIT(7) /* 0 = Enabled, 1 = Disabled */ +#define MISC_I2C0_PAD_CTRL 0xd8 +#define MISC_I2C1_PAD_CTRL 0xdc +#define MISC_I2C2_PAD_CTRL 0xe0 +#define MISC_I2C3_PAD_CTRL 0xe4 +#define I2C_PAD_CTRL_NG_MASK (BIT(0) + BIT(1) + BIT(2) + BIT(3)) +#define I2C_PAD_CTRL_NG_NORMAL 0xc +#define I2C_PAD_CTRL_RX_SEL_MASK (BIT(4) + BIT(5)) +#define I2C_PAD_CTRL_RX_SHIFT 4 +#define I2C_PAD_CTRL_RX_SEL_OFF (0 << I2C_PAD_CTRL_RX_SHIFT) +#define I2C_PAD_CTRL_RX_SEL_3_3V (1 << I2C_PAD_CTRL_RX_SHIFT) +#define I2C_PAD_CTRL_RX_SEL_1_8V (3 << I2C_PAD_CTRL_RX_SHIFT) +#define I2C_PAD_CTRL_PULLDOWN_EN BIT(6) +#define I2C_PAD_CTRL_FALLSLEW_MASK (BIT(7) + BIT(8)) +#define I2C_PAD_CTRL_FALLSLEW_SHIFT 7 +#define I2C_PAD_CTRL_FALLSLEW_STD (0 << I2C_PAD_CTRL_FALLSLEW_SHIFT) +#define I2C_PAD_CTRL_FALLSLEW_LOW (1 << I2C_PAD_CTRL_FALLSLEW_SHIFT) +#define I2C_PAD_CTRL_FALLSLEW_EN BIT(9) +#define I2C_PAD_CTRL_SPIKE_RC_EN BIT(10) +#define I2C_PAD_CTRL_SPIKE_RC_SEL BIT(11) /* 0 = 50ns, 1 = 20ns */ +#define I2C_PAD_CTRL_CAP_DOWN BIT(12) +#define I2C_PAD_CTRL_CAP_UP BIT(13) +#define I2C_PAD_CTRL_RES_DOWN BIT(14) +#define I2C_PAD_CTRL_RES_UP BIT(15) +#define I2C_PAD_CTRL_BIOS_CRT_EN BIT(16) +#define I2C_PAD_CTRL_SPARE0 BIT(17) +#define I2C_PAD_CTRL_SPARE1 BIT(18) /* FCH AOAC Registers 0xfed81e00 */ #define FCH_AOAC_D3_CONTROL_CLK_GEN 0x40 -#define FCH_AOAC_D3_CONTROL_I2C0 0x4a -#define FCH_AOAC_D3_CONTROL_I2C1 0x4c #define FCH_AOAC_D3_CONTROL_I2C2 0x4e #define FCH_AOAC_D3_CONTROL_I2C3 0x50 +#define FCH_AOAC_D3_CONTROL_I2C4 0x52 #define FCH_AOAC_D3_CONTROL_UART0 0x56 #define FCH_AOAC_D3_CONTROL_UART1 0x58 #define FCH_AOAC_D3_CONTROL_AMBA 0x62 @@ -198,10 +223,9 @@ #define FCH_AOAC_IS_SW_CONTROL BIT(7) #define FCH_AOAC_D3_STATE_CLK_GEN 0x41 -#define FCH_AOAC_D3_STATE_I2C0 0x4b -#define FCH_AOAC_D3_STATE_I2C1 0x4d #define FCH_AOAC_D3_STATE_I2C2 0x4f #define FCH_AOAC_D3_STATE_I2C3 0x51 +#define FCH_AOAC_D3_STATE_I2C4 0x53 #define FCH_AOAC_D3_STATE_UART0 0x57 #define FCH_AOAC_D3_STATE_UART1 0x59 #define FCH_AOAC_D3_STATE_AMBA 0x63 @@ -289,12 +313,11 @@ struct picasso_aoac { }; typedef struct aoac_devs { - unsigned int :5; - unsigned int ic0e:1; /* 5: I2C0 */ - unsigned int ic1e:1; /* 6: I2C1 */ + unsigned int :7; unsigned int ic2e:1; /* 7: I2C2 */ unsigned int ic3e:1; /* 8: I2C3 */ - unsigned int :2; + unsigned int ic4e:1; /* 9: I2C4 */ + unsigned int :1; unsigned int ut0e:1; /* 11: UART0 */ unsigned int ut1e:1; /* 12: UART1 */ unsigned int :2; @@ -370,4 +393,7 @@ void i2c_soc_early_init(void); /* Initialize all the i2c buses that are not marked with early init. */ void i2c_soc_init(void); +/* Allow the board to change the default I2C pad configuration */ +void mainboard_i2c_override(int bus, uint32_t *pad_settings); + #endif /* __PICASSO_SB_H__ */ |