On Fri, Mar 16, 2012 at 5:21 PM, Fabio Estevam <feste...@gmail.com> wrote:
> I would be glad to receive some suggestion in order to get the 1GHz frequency
> printed during the initial boot log.
If I print the frequency inside board_late_init() then I see the
correct reported CPU frequency:
U-Boot 2011.12-07170-g536d7cc-dirty (Mar 16 2012 - 17:53:26)
Board: MX53 LOCO
I2C: ready
DRAM: 1 GiB
WARNING: Caches not enabled
MMC: FSL_SDHC: 0, FSL_SDHC: 1
In: serial
Out: serial
Err: serial
CPU: Freescale i.MX53 family rev2.1 at 1000 MHz
Reset cause: POR
Net: FEC
Warning: failed to set MAC address
Hit any key to stop autoboot: 0
MX53LOCO U-Boot >
And the patch now looks like:
diff --git a/arch/arm/cpu/armv7/imx-common/cpu.c
b/arch/arm/cpu/armv7/imx-common/cpu.c
index 1e30ae5..1df29aa 100644
--- a/arch/arm/cpu/armv7/imx-common/cpu.c
+++ b/arch/arm/cpu/armv7/imx-common/cpu.c
@@ -34,7 +34,7 @@
#include <fsl_esdhc.h>
#endif
-static char *get_reset_cause(void)
+char *get_reset_cause(void)
{
u32 cause;
struct src *src_regs = (struct src *)SRC_BASE_ADDR;
diff --git a/arch/arm/include/asm/arch-mx5/sys_proto.h
b/arch/arm/include/asm/arch-mx5/sys_proto.h
index 13d12ee..54a8918 100644
--- a/arch/arm/include/asm/arch-mx5/sys_proto.h
+++ b/arch/arm/include/asm/arch-mx5/sys_proto.h
@@ -35,5 +35,6 @@ void set_chipselect_size(int const);
*/
int fecmxc_initialize(bd_t *bis);
+char *get_reset_cause(void);
#endif
diff --git a/board/freescale/mx53loco/mx53loco.c
b/board/freescale/mx53loco/mx53loco.c
index d736141..fbb2d63 100644
--- a/board/freescale/mx53loco/mx53loco.c
+++ b/board/freescale/mx53loco/mx53loco.c
@@ -35,6 +35,8 @@
#include <mmc.h>
#include <fsl_esdhc.h>
#include <asm/gpio.h>
+#include <pmic.h>
+#include <dialog_pmic.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -290,6 +292,70 @@ int board_mmc_init(bd_t *bis)
}
#endif
+static void setup_iomux_i2c(void)
+{
+ /* I2C1 SDA */
+ mxc_request_iomux(MX53_PIN_CSI0_D8,
+ IOMUX_CONFIG_ALT5 | IOMUX_CONFIG_SION);
+ mxc_iomux_set_input(MX53_I2C1_IPP_SDA_IN_SELECT_INPUT,
+ INPUT_CTL_PATH0);
+ mxc_iomux_set_pad(MX53_PIN_CSI0_D8,
+ PAD_CTL_SRE_FAST | PAD_CTL_DRV_HIGH |
+ PAD_CTL_100K_PU | PAD_CTL_PKE_ENABLE |
+ PAD_CTL_PUE_PULL |
+ PAD_CTL_ODE_OPENDRAIN_ENABLE);
+ /* I2C1 SCL */
+ mxc_request_iomux(MX53_PIN_CSI0_D9,
+ IOMUX_CONFIG_ALT5 | IOMUX_CONFIG_SION);
+ mxc_iomux_set_input(MX53_I2C1_IPP_SCL_IN_SELECT_INPUT,
+ INPUT_CTL_PATH0);
+ mxc_iomux_set_pad(MX53_PIN_CSI0_D9,
+ PAD_CTL_SRE_FAST | PAD_CTL_DRV_HIGH |
+ PAD_CTL_100K_PU | PAD_CTL_PKE_ENABLE |
+ PAD_CTL_PUE_PULL |
+ PAD_CTL_ODE_OPENDRAIN_ENABLE);
+}
+
+static void power_init(void)
+{
+ unsigned int val, ret;
+ struct pmic *p;
+
+ pmic_init();
+ p = get_pmic();
+
+ /* Set VDDA to 1.25V */
+ val = DA9052_BUCKCORE_BCOREEN | DA_BUCKCORE_VBCORE_1_250V;
+ ret = pmic_reg_write(p, DA9053_BUCKCORE_REG, val);
+ if (!ret)
+ return;
+
+ pmic_reg_read(p, DA9053_SUPPLY_REG, &val);
+ val |= DA9052_SUPPLY_VBCOREGO;
+ pmic_reg_write(p, DA9053_SUPPLY_REG, val);
+ /* Set Vcc peripheral to 1.35V */
+ pmic_reg_write(p, 0x2f, 0x62);
+ pmic_reg_write(p, 0x3c, 0x62);
+}
+
+static void clock_init(void)
+{
+ int ret;
+ u32 ref_clk = CONFIG_SYS_MX5_HCLK;
+ /*
+ * After increasing voltage to 1.25V, we can switch
+ * CPU clock to 1GHz and DDR to 400MHz safely
+ */
+ ret = mxc_set_clock(ref_clk, 1000, MXC_ARM_CLK);
+ if (ret)
+ printf("CPU: Switch CPU clock to 1GHZ failed\n");
+
+ ret = mxc_set_clock(ref_clk, 400, MXC_PERIPH_CLK);
+ ret |= mxc_set_clock(ref_clk, 400, MXC_DDR_CLK);
+ if (ret)
+ printf("CPU: Switch DDR clock to 400MHz failed\n");
+}
+
int board_early_init_f(void)
{
setup_iomux_uart();
@@ -305,6 +371,33 @@ int board_init(void)
return 0;
}
+int print_cpuinfo(void)
+{
+ u32 cpurev;
+
+ cpurev = get_cpu_rev();
+ printf("CPU: Freescale i.MX%x family rev%d.%d at %d MHz\n",
+ (cpurev & 0xFF000) >> 12,
+ (cpurev & 0x000F0) >> 4,
+ (cpurev & 0x0000F) >> 0,
+ mxc_get_clock(MXC_ARM_CLK) / 1000000);
+ printf("Reset cause: %s\n", get_reset_cause());
+ return 0;
+}
+
+#ifdef CONFIG_BOARD_LATE_INIT
+int board_late_init(void)
+{
+#ifdef CONFIG_I2C_MXC
+ setup_iomux_i2c();
+ power_init();
+ clock_init();
+#endif
+ print_cpuinfo();
+ return 0;
+}
+#endif
+
int checkboard(void)
{
puts("Board: MX53 LOCO\n");
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index a709707..6511713 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -39,6 +39,7 @@ COBJS-$(CONFIG_PMIC_FSL) += pmic_fsl.o
COBJS-$(CONFIG_PMIC_I2C) += pmic_i2c.o
COBJS-$(CONFIG_PMIC_SPI) += pmic_spi.o
COBJS-$(CONFIG_PMIC_MAX8998) += pmic_max8998.o
+COBJS-$(CONFIG_DIALOG_PMIC) += pmic_dialog.o
COBJS := $(COBJS-y)
SRCS := $(COBJS:.o=.c)
diff --git a/include/configs/mx53loco.h b/include/configs/mx53loco.h
index 34a4edd..143b078 100644
--- a/include/configs/mx53loco.h
+++ b/include/configs/mx53loco.h
@@ -27,7 +27,6 @@
#define CONFIG_SYS_MX5_HCLK 24000000
#define CONFIG_SYS_MX5_CLK32 32768
-#define CONFIG_DISPLAY_CPUINFO
#define CONFIG_DISPLAY_BOARDINFO
#define CONFIG_MACH_TYPE MACH_TYPE_MX53_LOCO
@@ -42,6 +41,7 @@
#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 2 * 1024 * 1024)
#define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_BOARD_LATE_INIT
#define CONFIG_MXC_GPIO
#define CONFIG_MXC_UART
@@ -85,6 +85,19 @@
#define CONFIG_MXC_USB_PORTSC (PORT_PTS_UTMI | PORT_PTS_PTW)
#define CONFIG_MXC_USB_FLAGS 0
+/* I2C Configs */
+#define CONFIG_HARD_I2C
+#define CONFIG_I2C_MXC
+#define CONFIG_SYS_I2C_MX53_PORT1
+#define CONFIG_SYS_I2C_SPEED 100000
+#define CONFIG_SYS_I2C_SLAVE 0xfe
+
+/* PMIC Controller */
+#define CONFIG_PMIC
+#define CONFIG_PMIC_I2C
+#define CONFIG_DIALOG_PMIC
+#define CONFIG_SYS_DIALOG_PMIC_I2C_ADDR 0x48
+
/* allow to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE
#define CONFIG_CONS_INDEX 1
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