Hello,
On 11/05/2014 09:33 AM, Li Ye-B37916 wrote:
Hi Przemyslaw,
On 11/4/2014 11:56 PM, Przemyslaw Marczak wrote:
Hello Ye Li,
On 09/10/2014 11:08 AM, Ye.Li wrote:
Initialize the Pfuze on I2C1 at board late init. The mx6slevk board
has Pfuze100 or Pfuze200, print the chip type by parsing the ID.
Signed-off-by: Ye.Li <b37...@freescale.com>
---
board/freescale/mx6slevk/mx6slevk.c | 57
+++++++++++++++++++++++++++++++++++
include/configs/mx6slevk.h | 7 ++++
2 files changed, 64 insertions(+), 0 deletions(-)
diff --git a/board/freescale/mx6slevk/mx6slevk.c
b/board/freescale/mx6slevk/mx6slevk.c
index fedd5c3..8b6a79c 100644
--- a/board/freescale/mx6slevk/mx6slevk.c
+++ b/board/freescale/mx6slevk/mx6slevk.c
@@ -21,6 +21,8 @@
#include <mmc.h>
#include <netdev.h>
#include <i2c.h>
+#include <power/pmic.h>
+#include <power/pfuze100_pmic.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -48,6 +50,8 @@ DECLARE_GLOBAL_DATA_PTR;
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
+#define I2C_PMIC 0
+
/* I2C1 for PMIC */
struct i2c_pads_info i2c_pad_info0 = {
.sda = {
@@ -191,6 +195,59 @@ int board_init(void)
return 0;
}
+static int pfuze_init(void)
+{
+ struct pmic *p;
+ int ret;
+ unsigned int reg;
+
+ ret = power_pfuze100_init(I2C_PMIC);
+ if (ret)
+ return ret;
+
+ p = pmic_get("PFUZE100");
+ ret = pmic_probe(p);
+ if (ret)
+ return ret;
+
+ pmic_reg_read(p, PFUZE100_DEVICEID, ®);
+ printf("PMIC: PFUZE%s ID=0x%02x\n",
+ ((reg & 0xf) == 0) ? "100" : "200", reg);
+
+ /* Set SW1AB stanby volage to 0.975V */
+ pmic_reg_read(p, PFUZE100_SW1ABSTBY, ®);
+ reg &= ~0x3f;
+ reg |= 0x1b;
+ pmic_reg_write(p, PFUZE100_SW1ABSTBY, reg);
+
+ /* Set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
+ pmic_reg_read(p, PUZE_100_SW1ABCONF, ®);
+ reg &= ~0xc0;
+ reg |= 0x40;
+ pmic_reg_write(p, PUZE_100_SW1ABCONF, reg);
+
+ /* Set SW1C standby voltage to 0.975V */
+ pmic_reg_read(p, PFUZE100_SW1CSTBY, ®);
+ reg &= ~0x3f;
+ reg |= 0x1b;
+ pmic_reg_write(p, PFUZE100_SW1CSTBY, reg);
+
+ /* Set SW1C/VDDSOC step ramp up time from 16us to 4us/25mV */
+ pmic_reg_read(p, PFUZE100_SW1CCONF, ®);
+ reg &= ~0xc0;
+ reg |= 0x40;
+ pmic_reg_write(p, PFUZE100_SW1CCONF, reg);
+
+ return 0;
+}
+
+int board_late_init(void)
+{
+ pfuze_init();
+
+ return 0;
+}
Why not use power_init_board()?
It's dedicated and called at common/board_r.c.
Good suggestion, will change to use the power_init_board in v2.
The power_init_board is called much more earlier, then please make sure
that everything will work for you.
+
u32 get_board_rev(void)
{
return get_cpu_rev();
diff --git a/include/configs/mx6slevk.h b/include/configs/mx6slevk.h
index bf5066f..09d0896 100644
--- a/include/configs/mx6slevk.h
+++ b/include/configs/mx6slevk.h
@@ -30,6 +30,7 @@
#define CONFIG_SYS_MALLOC_LEN (3 * SZ_1M)
#define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_BOARD_LATE_INIT
#define CONFIG_MXC_GPIO
#define CONFIG_MXC_UART
@@ -66,6 +67,12 @@
#define CONFIG_SYS_I2C_MXC
#define CONFIG_SYS_I2C_SPEED 100000
+/* PMIC */
+#define CONFIG_POWER
+#define CONFIG_POWER_I2C
+#define CONFIG_POWER_PFUZE100
+#define CONFIG_POWER_PFUZE100_I2C_ADDR 0x08
I assume that the I2C addr is const, if yes then it should be moved to the
PFUZE100 header.
It is not const. The default I2C address is 0x08. But it can be programmed
from 0x08 to 0x0F by setting
OTP_I2C_ADDR register.
Yes, so the PMIC header is a good place for the default definitions. But
I see that each board defines the same address for it. So leave it as it
is.
+
/* allow to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE
#define CONFIG_CONS_INDEX 1
Thank you,
Best regards,
Ye Li
Best regards,
--
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marc...@samsung.com
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