The fuse status register provides the values from on-chip
voltage ID efuses programmed at the factory. These values
define the voltage requirements for the chip. u-boot reads
FUSESR and translates the values into the appropriate
commands to set the voltage output value of an external
voltage regulator.
Signed-off-by: Rai Harninder <harninder....@nxp.com>
---
.../include/asm/arch-fsl-layerscape/immap_lsch3.h | 4 ++++
board/freescale/common/vid.c | 15 ++++++++++++++-
board/freescale/ls2080ardb/ls2080ardb.c | 5 +++++
include/configs/ls2080ardb.h | 16 ++++++++++++++++
4 files changed, 39 insertions(+), 1 deletions(-)
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
index 91f3ce8..4fd58ee 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
@@ -146,6 +146,10 @@ struct ccsr_gur {
u8 res_008[0x20-0x8];
u32 gpporcr1; /* General-purpose POR configuration */
u32 gpporcr2; /* General-purpose POR configuration 2 */
+#define FSL_CHASSIS3_DCFG_FUSESR_VID_SHIFT 25
+#define FSL_CHASSIS3_DCFG_FUSESR_VID_MASK 0x1F
+#define FSL_CHASSIS3_DCFG_FUSESR_ALTVID_SHIFT 20
+#define FSL_CHASSIS3_DCFG_FUSESR_ALTVID_MASK 0x1F
u32 dcfg_fusesr; /* Fuse status register */
u32 gpporcr3;
u32 gpporcr4;
diff --git a/board/freescale/common/vid.c b/board/freescale/common/vid.c
index 1bd65a8..16ae177 100644
--- a/board/freescale/common/vid.c
+++ b/board/freescale/common/vid.c
@@ -10,6 +10,8 @@
#include <asm/io.h>
#ifdef CONFIG_LS1043A
#include <asm/arch/immap_lsch2.h>
+#elif defined(CONFIG_FSL_LAYERSCAPE)
+#include <asm/arch/immap_lsch3.h>
#else
#include <asm/immap_85xx.h>
#endif
@@ -285,7 +287,7 @@ static int set_voltage(int i2caddress, int vdd)
int adjust_vdd(ulong vdd_override)
{
int re_enable = disable_interrupts();
-#ifdef CONFIG_LS1043A
+#if defined(CONFIG_LS1043A) || defined(CONFIG_FSL_LAYERSCAPE)
struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
#else
ccsr_gur_t __iomem *gur =
@@ -362,7 +364,11 @@ int adjust_vdd(ulong vdd_override)
}
/* get the voltage ID from fuse status register */
+#ifdef CONFIG_FSL_LAYERSCAPE
+ fusesr = in_le32(&gur->dcfg_fusesr);
+#else
fusesr = in_be32(&gur->dcfg_fusesr);
+#endif
/*
* VID is used according to the table below
* ---------------------------------------
@@ -387,6 +393,13 @@ int adjust_vdd(ulong vdd_override)
vid = (fusesr >> FSL_CHASSIS2_DCFG_FUSESR_VID_SHIFT) &
FSL_CHASSIS2_DCFG_FUSESR_VID_MASK;
}
+#elif defined(CONFIG_FSL_LAYERSCAPE)
+ vid = (fusesr >> FSL_CHASSIS3_DCFG_FUSESR_ALTVID_SHIFT) &
+ FSL_CHASSIS3_DCFG_FUSESR_ALTVID_MASK;
+ if ((vid == 0) || (vid == FSL_CHASSIS3_DCFG_FUSESR_ALTVID_MASK)) {
+ vid = (fusesr >> FSL_CHASSIS3_DCFG_FUSESR_VID_SHIFT) &
+ FSL_CHASSIS3_DCFG_FUSESR_VID_MASK;
+ }
#else
vid = (fusesr >> FSL_CORENET_DCFG_FUSESR_ALTVID_SHIFT) &
FSL_CORENET_DCFG_FUSESR_ALTVID_MASK;
diff --git a/board/freescale/ls2080ardb/ls2080ardb.c
b/board/freescale/ls2080ardb/ls2080ardb.c
index c63b639..9515b25 100644
--- a/board/freescale/ls2080ardb/ls2080ardb.c
+++ b/board/freescale/ls2080ardb/ls2080ardb.c
@@ -122,6 +122,11 @@ int select_i2c_ch_pca9547(u8 ch)
return 0;
}
+int i2c_multiplexer_select_vid_channel(u8 channel)
+{
+ return select_i2c_ch_pca9547(channel);
+}
+
int config_board_mux(int ctrl_type)
{
u8 reg5;
diff --git a/include/configs/ls2080ardb.h b/include/configs/ls2080ardb.h
index 116dbcd..9a95f31 100644
--- a/include/configs/ls2080ardb.h
+++ b/include/configs/ls2080ardb.h
@@ -14,6 +14,22 @@
#define CONFIG_DISPLAY_BOARDINFO
+#define I2C_MUX_CH_VOL_MONITOR 0xa
+#define I2C_VOL_MONITOR_ADDR 0x38
+#define CONFIG_VOL_MONITOR_IR36021_READ
+#define CONFIG_VOL_MONITOR_IR36021_SET
+
+#define CONFIG_VID_FLS_ENV "ls2080ardb_vdd_mv"
+#ifndef CONFIG_SPL_BUILD
+#define CONFIG_VID
+#endif
+/* step the IR regulator in 5mV increments */
+#define IR_VDD_STEP_DOWN 5
+#define IR_VDD_STEP_UP 5
+/* The lowest and highest voltage allowed for LS2080ARDB */
+#define VDD_MV_MIN 819
+#define VDD_MV_MAX 1212
+
#ifndef __ASSEMBLY__
unsigned long get_board_sys_clk(void);
#endif
--
1.7.6.GIT
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