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-rw-r--r--src/mainboard/google/nyan_big/mainboard.c62
-rw-r--r--src/mainboard/google/nyan_big/romstage.c88
2 files changed, 89 insertions, 61 deletions
diff --git a/src/mainboard/google/nyan_big/mainboard.c b/src/mainboard/google/nyan_big/mainboard.c
index c77afd2c5a..997ceb0c2e 100644
--- a/src/mainboard/google/nyan_big/mainboard.c
+++ b/src/mainboard/google/nyan_big/mainboard.c
@@ -39,14 +39,6 @@ static void set_clock_sources(void)
* can both run at 400 KHz, but the kernel sets the bus to 100 KHz.
*/
clock_configure_i2c_scl_freq(i2c1, PLLP, 100);
- /*
- * The TPM is on I2C3 and can theoretically run at 400 KHz but doesn't
- * seem to work above around 40 KHz. It's set to run at 100 KHz in the
- * kernel.
- */
- clock_configure_i2c_scl_freq(i2c3, PLLP, 40);
-
- clock_configure_source(sbc1, PLLP, 5000);
/*
* MMC3 and MMC4: Set base clock frequency for SD Clock to Tegra MMC's
@@ -78,47 +70,6 @@ static void set_clock_sources(void)
static void setup_pinmux(void)
{
- // Write protect.
- gpio_input_pullup(GPIO(R1));
- // Recovery mode.
- gpio_input_pullup(GPIO(Q7));
- // Lid switch.
- gpio_input_pullup(GPIO(R4));
- // Power switch.
- gpio_input_pullup(GPIO(Q0));
- // Developer mode.
- gpio_input_pullup(GPIO(Q6));
- // EC in RW.
- gpio_input_pullup(GPIO(U4));
-
- // SOC and TPM reset GPIO, active low.
- gpio_output(GPIO(I5), 1);
-
- // SPI1 MOSI
- pinmux_set_config(PINMUX_ULPI_CLK_INDEX, PINMUX_ULPI_CLK_FUNC_SPI1 |
- PINMUX_PULL_NONE |
- PINMUX_INPUT_ENABLE);
- // SPI1 MISO
- pinmux_set_config(PINMUX_ULPI_DIR_INDEX, PINMUX_ULPI_DIR_FUNC_SPI1 |
- PINMUX_PULL_NONE |
- PINMUX_INPUT_ENABLE);
- // SPI1 SCLK
- pinmux_set_config(PINMUX_ULPI_NXT_INDEX, PINMUX_ULPI_NXT_FUNC_SPI1 |
- PINMUX_PULL_NONE |
- PINMUX_INPUT_ENABLE);
- // SPI1 CS0
- pinmux_set_config(PINMUX_ULPI_STP_INDEX, PINMUX_ULPI_STP_FUNC_SPI1 |
- PINMUX_PULL_NONE |
- PINMUX_INPUT_ENABLE);
-
- // switch unused pin to GPIO
- gpio_set_mode(GPIO(X3), GPIO_MODE_GPIO);
- gpio_set_mode(GPIO(X4), GPIO_MODE_GPIO);
- gpio_set_mode(GPIO(X5), GPIO_MODE_GPIO);
- gpio_set_mode(GPIO(X6), GPIO_MODE_GPIO);
- gpio_set_mode(GPIO(X7), GPIO_MODE_GPIO);
- gpio_set_mode(GPIO(W3), GPIO_MODE_GPIO);
-
// I2C1 clock.
pinmux_set_config(PINMUX_GEN1_I2C_SCL_INDEX,
PINMUX_GEN1_I2C_SCL_FUNC_I2C1 | PINMUX_INPUT_ENABLE);
@@ -131,12 +82,6 @@ static void setup_pinmux(void)
// I2C2 data.
pinmux_set_config(PINMUX_GEN2_I2C_SDA_INDEX,
PINMUX_GEN2_I2C_SDA_FUNC_I2C2 | PINMUX_INPUT_ENABLE);
- // I2C3 (cam) clock.
- pinmux_set_config(PINMUX_CAM_I2C_SCL_INDEX,
- PINMUX_CAM_I2C_SCL_FUNC_I2C3 | PINMUX_INPUT_ENABLE);
- // I2C3 (cam) data.
- pinmux_set_config(PINMUX_CAM_I2C_SDA_INDEX,
- PINMUX_CAM_I2C_SDA_FUNC_I2C3 | PINMUX_INPUT_ENABLE);
// I2C4 (DDC) clock.
pinmux_set_config(PINMUX_DDC_SCL_INDEX,
PINMUX_DDC_SCL_FUNC_I2C4 | PINMUX_INPUT_ENABLE);
@@ -268,10 +213,10 @@ static void mainboard_init(device_t dev)
CLK_L_SPDIF | CLK_L_USBD | CLK_L_DISP1 |
CLK_L_HOST1X | CLK_L_PWM,
- CLK_H_EMC | CLK_H_I2C2 | CLK_H_SBC1 |
- CLK_H_PMC | CLK_H_MEM | CLK_H_USB3,
+ CLK_H_EMC | CLK_H_I2C2 | CLK_H_PMC |
+ CLK_H_MEM | CLK_H_USB3,
- CLK_U_I2C3 | CLK_U_CSITE | CLK_U_SDMMC3,
+ CLK_U_CSITE | CLK_U_SDMMC3,
CLK_V_I2C4 | CLK_V_EXTPERIPH1 | CLK_V_APBIF |
CLK_V_AUDIO | CLK_V_I2S3 | CLK_V_I2S4 |
@@ -292,7 +237,6 @@ static void mainboard_init(device_t dev)
i2c_init(0);
i2c_init(1);
- i2c_init(2);
i2c_init(3);
setup_kernel_info();
diff --git a/src/mainboard/google/nyan_big/romstage.c b/src/mainboard/google/nyan_big/romstage.c
index 51f5a49264..e1597c8ba9 100644
--- a/src/mainboard/google/nyan_big/romstage.c
+++ b/src/mainboard/google/nyan_big/romstage.c
@@ -20,17 +20,24 @@
#include <arch/cache.h>
#include <arch/cpu.h>
#include <arch/exception.h>
+#include <arch/io.h>
#include <arch/stages.h>
#include <device/device.h>
#include <cbfs.h>
#include <cbmem.h>
#include <console/console.h>
#include "sdram_configs.h"
-#include "soc/nvidia/tegra124/chip.h"
-#include "soc/nvidia/tegra124/sdram.h"
+#include <soc/nvidia/tegra/i2c.h>
+#include <soc/nvidia/tegra124/chip.h>
+#include <soc/nvidia/tegra124/clk_rst.h>
+#include <soc/nvidia/tegra124/sdram.h>
+#include <soc/addressmap.h>
+#include <soc/clock.h>
#include <soc/display.h>
#include <timestamp.h>
+static struct clk_rst_ctlr *clk_rst = (void *)TEGRA_CLK_RST_BASE;
+
enum {
L2CTLR_ECC_PARITY = 0x1 << 21,
L2CTLR_TAG_RAM_LATENCY_MASK = 0x7 << 6,
@@ -69,6 +76,74 @@ static void configure_l2actlr(void)
write_l2actlr(val);
}
+static void setup_pinmux(void)
+{
+ // Write protect.
+ gpio_input_pullup(GPIO(R1));
+ // Recovery mode.
+ gpio_input_pullup(GPIO(Q7));
+ // Lid switch.
+ gpio_input_pullup(GPIO(R4));
+ // Power switch.
+ gpio_input_pullup(GPIO(Q0));
+ // Developer mode.
+ gpio_input_pullup(GPIO(Q6));
+ // EC in RW.
+ gpio_input_pullup(GPIO(U4));
+
+ // SOC and TPM reset GPIO, active low.
+ gpio_output(GPIO(I5), 1);
+
+ // SPI1 MOSI
+ pinmux_set_config(PINMUX_ULPI_CLK_INDEX, PINMUX_ULPI_CLK_FUNC_SPI1 |
+ PINMUX_PULL_NONE |
+ PINMUX_INPUT_ENABLE);
+ // SPI1 MISO
+ pinmux_set_config(PINMUX_ULPI_DIR_INDEX, PINMUX_ULPI_DIR_FUNC_SPI1 |
+ PINMUX_PULL_NONE |
+ PINMUX_INPUT_ENABLE);
+ // SPI1 SCLK
+ pinmux_set_config(PINMUX_ULPI_NXT_INDEX, PINMUX_ULPI_NXT_FUNC_SPI1 |
+ PINMUX_PULL_NONE |
+ PINMUX_INPUT_ENABLE);
+ // SPI1 CS0
+ pinmux_set_config(PINMUX_ULPI_STP_INDEX, PINMUX_ULPI_STP_FUNC_SPI1 |
+ PINMUX_PULL_NONE |
+ PINMUX_INPUT_ENABLE);
+
+ // I2C3 (cam) clock.
+ pinmux_set_config(PINMUX_CAM_I2C_SCL_INDEX,
+ PINMUX_CAM_I2C_SCL_FUNC_I2C3 | PINMUX_INPUT_ENABLE);
+ // I2C3 (cam) data.
+ pinmux_set_config(PINMUX_CAM_I2C_SDA_INDEX,
+ PINMUX_CAM_I2C_SDA_FUNC_I2C3 | PINMUX_INPUT_ENABLE);
+
+ // switch unused pin to GPIO
+ gpio_set_mode(GPIO(X3), GPIO_MODE_GPIO);
+ gpio_set_mode(GPIO(X4), GPIO_MODE_GPIO);
+ gpio_set_mode(GPIO(X5), GPIO_MODE_GPIO);
+ gpio_set_mode(GPIO(X6), GPIO_MODE_GPIO);
+ gpio_set_mode(GPIO(X7), GPIO_MODE_GPIO);
+ gpio_set_mode(GPIO(W3), GPIO_MODE_GPIO);
+}
+
+static void configure_ec_spi_bus(void)
+{
+ clock_configure_source(sbc1, PLLP, 5000);
+}
+
+static void configure_tpm_i2c_bus(void)
+{
+ /*
+ * The TPM is on I2C3 and can theoretically run at 400 KHz but doesn't
+ * seem to work above around 40 KHz. It's set to run at 100 KHz in the
+ * kernel.
+ */
+ clock_configure_i2c_scl_freq(i2c3, PLLP, 40);
+
+ i2c_init(2);
+}
+
static void __attribute__((noinline)) romstage(void)
{
#if CONFIG_COLLECT_TIMESTAMPS
@@ -130,6 +205,15 @@ static void __attribute__((noinline)) romstage(void)
timestamp_add(TS_START_ROMSTAGE, romstage_start_time);
timestamp_add(TS_START_COPYRAM, timestamp_get());
#endif
+
+ // Enable additional peripherals we need for ROM stage.
+ clock_enable_clear_reset(0, CLK_H_SBC1, CLK_U_I2C3, 0, 0, 0);
+
+ setup_pinmux();
+
+ configure_ec_spi_bus();
+ configure_tpm_i2c_bus();
+
void *entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA,
"fallback/coreboot_ram");
#if CONFIG_COLLECT_TIMESTAMPS
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 05:45:07 +0000