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soc/amd/*/i2c: introduce and use MISC_I2C_PAD_CTRL(bus) macro 

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I9d098a55a5c6f6e022c3896750c752e2759e101b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61567
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
This commit is contained in:
Felix Held 2022-02-02 20:52:54 +01:00
parent 42d8cbf4d2
commit bb42f67240
6 changed files with 9 additions and 12 deletions
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6
src/soc/amd/cezanne/i2c.c
View File

@ -37,13 +37,11 @@ void soc_i2c_misc_init(unsigned int bus, const struct dw_i2c_bus_config *cfg)
{
const struct soc_amd_cezanne_config *config = config_of_soc();
uint32_t pad_ctrl;
int misc_reg;
if (bus >= ARRAY_SIZE(config->i2c_pad_ctrl_rx_sel))
return;
misc_reg = MISC_I2C0_PAD_CTRL + sizeof(uint32_t) * bus;
pad_ctrl = misc_read32(misc_reg);
pad_ctrl = misc_read32(MISC_I2C_PAD_CTRL(bus));
pad_ctrl &= ~I2C_PAD_CTRL_NG_MASK;
pad_ctrl |= I2C_PAD_CTRL_NG_NORMAL;
@ -55,7 +53,7 @@ void soc_i2c_misc_init(unsigned int bus, const struct dw_i2c_bus_config *cfg)
pad_ctrl |= cfg->speed == I2C_SPEED_STANDARD ?
I2C_PAD_CTRL_FALLSLEW_STD : I2C_PAD_CTRL_FALLSLEW_LOW;
pad_ctrl |= I2C_PAD_CTRL_FALLSLEW_EN;
misc_write32(misc_reg, pad_ctrl);
misc_write32(MISC_I2C_PAD_CTRL(bus), pad_ctrl);
}
const struct soc_i2c_ctrlr_info *soc_get_i2c_ctrlr_info(size_t *num_ctrlrs)

1
src/soc/amd/cezanne/include/soc/southbridge.h
View File

@ -116,6 +116,7 @@
#define MISC_I2C1_PAD_CTRL 0xdc
#define MISC_I2C2_PAD_CTRL 0xe0
#define MISC_I2C3_PAD_CTRL 0xe4
#define MISC_I2C_PAD_CTRL(bus) (MISC_I2C0_PAD_CTRL + 4 * (bus))
#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))

6
src/soc/amd/picasso/i2c.c
View File

@ -41,10 +41,8 @@ void i2c_set_bar(unsigned int bus, uintptr_t bar)
void soc_i2c_misc_init(unsigned int bus, const struct dw_i2c_bus_config *cfg)
{
uint32_t pad_ctrl;
int misc_reg;
misc_reg = MISC_I2C0_PAD_CTRL + sizeof(uint32_t) * bus;
pad_ctrl = misc_read32(misc_reg);
pad_ctrl = misc_read32(MISC_I2C_PAD_CTRL(bus));
pad_ctrl &= ~I2C_PAD_CTRL_NG_MASK;
pad_ctrl |= I2C_PAD_CTRL_NG_NORMAL;
@ -57,7 +55,7 @@ void soc_i2c_misc_init(unsigned int bus, const struct dw_i2c_bus_config *cfg)
I2C_PAD_CTRL_FALLSLEW_STD : I2C_PAD_CTRL_FALLSLEW_LOW;
pad_ctrl |= I2C_PAD_CTRL_FALLSLEW_EN;
misc_write32(misc_reg, pad_ctrl);
misc_write32(MISC_I2C_PAD_CTRL(bus), pad_ctrl);
}
const struct soc_i2c_ctrlr_info *soc_get_i2c_ctrlr_info(size_t *num_ctrlrs)

1
src/soc/amd/picasso/include/soc/southbridge.h
View File

@ -96,6 +96,7 @@
#define MISC_I2C1_PAD_CTRL 0xdc
#define MISC_I2C2_PAD_CTRL 0xe0
#define MISC_I2C3_PAD_CTRL 0xe4
#define MISC_I2C_PAD_CTRL(bus) (MISC_I2C0_PAD_CTRL + 4 * (bus))
#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))

6
src/soc/amd/sabrina/i2c.c
View File

@ -39,13 +39,11 @@ void soc_i2c_misc_init(unsigned int bus, const struct dw_i2c_bus_config *cfg)
{
const struct soc_amd_sabrina_config *config = config_of_soc();
uint32_t pad_ctrl;
int misc_reg;
if (bus >= ARRAY_SIZE(config->i2c_pad_ctrl_rx_sel))
return;
misc_reg = MISC_I2C0_PAD_CTRL + sizeof(uint32_t) * bus;
pad_ctrl = misc_read32(misc_reg);
pad_ctrl = misc_read32(MISC_I2C_PAD_CTRL(bus));
pad_ctrl &= ~I2C_PAD_CTRL_NG_MASK;
pad_ctrl |= I2C_PAD_CTRL_NG_NORMAL;
@ -57,7 +55,7 @@ void soc_i2c_misc_init(unsigned int bus, const struct dw_i2c_bus_config *cfg)
pad_ctrl |= cfg->speed == I2C_SPEED_STANDARD ?
I2C_PAD_CTRL_FALLSLEW_STD : I2C_PAD_CTRL_FALLSLEW_LOW;
pad_ctrl |= I2C_PAD_CTRL_FALLSLEW_EN;
misc_write32(misc_reg, pad_ctrl);
misc_write32(MISC_I2C_PAD_CTRL(bus), pad_ctrl);
}
const struct soc_i2c_ctrlr_info *soc_get_i2c_ctrlr_info(size_t *num_ctrlrs)

1
src/soc/amd/sabrina/include/soc/southbridge.h
View File

@ -117,6 +117,7 @@
#define MISC_I2C1_PAD_CTRL 0xdc
#define MISC_I2C2_PAD_CTRL 0xe0
#define MISC_I2C3_PAD_CTRL 0xe4
#define MISC_I2C_PAD_CTRL(bus) (MISC_I2C0_PAD_CTRL + 4 * (bus))
#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))