Some board designs copy i.MX51 Babbadge board's PMIC design and so
require exactly the same initialization. Move correspoding code into a
separate file, add new compatiblity string and make appropriate
Kconfig change to allow other boards to share that code.
Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
---
arch/arm/boards/Makefile | 2 +-
.../boards/freescale-mx51-babbage/Makefile | 5 +-
.../arm/boards/freescale-mx51-babbage/board.c | 110 ---------------
.../arm/boards/freescale-mx51-babbage/power.c | 127 ++++++++++++++++++
arch/arm/mach-imx/Kconfig | 13 +-
5 files changed, 141 insertions(+), 116 deletions(-)
create mode 100644 arch/arm/boards/freescale-mx51-babbage/power.c
diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile
index b2fea4a40..f1dc4c685 100644
--- a/arch/arm/boards/Makefile
+++ b/arch/arm/boards/Makefile
@@ -43,7 +43,7 @@ obj-$(CONFIG_MACH_EUKREA_CPUIMX51SD) += eukrea_cpuimx51/
obj-$(CONFIG_MACH_ELTEC_HIPERCAM) += eltec-hipercam/
obj-$(CONFIG_MACH_FREESCALE_MX25_3STACK) += freescale-mx25-3ds/
obj-$(CONFIG_MACH_FREESCALE_MX35_3STACK) += freescale-mx35-3ds/
-obj-$(CONFIG_MACH_FREESCALE_MX51_PDK) += freescale-mx51-babbage/
+obj-y += freescale-mx51-babbage/
obj-$(CONFIG_MACH_FREESCALE_MX53_LOCO) += freescale-mx53-qsb/
obj-$(CONFIG_MACH_FREESCALE_MX53_SMD) += freescale-mx53-smd/
obj-$(CONFIG_MACH_FREESCALE_MX53_VMX53) += freescale-mx53-vmx53/
diff --git a/arch/arm/boards/freescale-mx51-babbage/Makefile b/arch/arm/boards/freescale-mx51-babbage/Makefile
index 01c7a259e..b6e085818 100644
--- a/arch/arm/boards/freescale-mx51-babbage/Makefile
+++ b/arch/arm/boards/freescale-mx51-babbage/Makefile
@@ -1,2 +1,3 @@
-obj-y += board.o
-lwl-y += lowlevel.o
+obj-$(CONFIG_MACH_FREESCALE_MX51_PDK_POWER) += power.o
+obj-$(CONFIG_MACH_FREESCALE_MX51_PDK) += board.o
+lwl-$(CONFIG_MACH_FREESCALE_MX51_PDK) += lowlevel.o
diff --git a/arch/arm/boards/freescale-mx51-babbage/board.c b/arch/arm/boards/freescale-mx51-babbage/board.c
index 915748528..fa9b39437 100644
--- a/arch/arm/boards/freescale-mx51-babbage/board.c
+++ b/arch/arm/boards/freescale-mx51-babbage/board.c
@@ -30,8 +30,6 @@
#include <mach/bbu.h>
#include <nand.h>
#include <notifier.h>
-#include <spi/spi.h>
-#include <mfd/mc13xxx.h>
#include <io.h>
#include <asm/mmu.h>
#include <mach/imx5.h>
@@ -44,112 +42,6 @@
#define MX51_CCM_CACRR 0x10
-static void babbage_power_init(struct mc13xxx *mc13xxx)
-{
- u32 val;
-
- /* Write needed to Power Gate 2 register */
- mc13xxx_reg_read(mc13xxx, MC13892_REG_POWER_MISC, &val);
- val &= ~0x10000;
- mc13xxx_reg_write(mc13xxx, MC13892_REG_POWER_MISC, val);
-
- /* Write needed to update Charger 0 */
- mc13xxx_reg_write(mc13xxx, MC13892_REG_CHARGE, 0x0023807F);
-
- /* power up the system first */
- mc13xxx_reg_write(mc13xxx, MC13892_REG_POWER_MISC, 0x00200000);
-
- if (imx_silicon_revision() < IMX_CHIP_REV_3_0) {
- /* Set core voltage to 1.1V */
- mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_0, &val);
- val &= ~0x1f;
- val |= 0x14;
- mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_0, val);
-
- /* Setup VCC (SW2) to 1.25 */
- mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_1, &val);
- val &= ~0x1f;
- val |= 0x1a;
- mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_1, val);
-
- /* Setup 1V2_DIG1 (SW3) to 1.25 */
- mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_2, &val);
- val &= ~0x1f;
- val |= 0x1a;
- mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_2, val);
- } else {
- /* Setup VCC (SW2) to 1.225 */
- mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_1, &val);
- val &= ~0x1f;
- val |= 0x19;
- mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_1, val);
-
- /* Setup 1V2_DIG1 (SW3) to 1.2 */
- mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_2, &val);
- val &= ~0x1f;
- val |= 0x18;
- mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_2, val);
- }
-
- if (mc13xxx_revision(mc13xxx) < MC13892_REVISION_2_0) {
- /* Set switchers in PWM mode for Atlas 2.0 and lower */
- /* Setup the switcher mode for SW1 & SW2*/
- mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_4, &val);
- val &= ~0x3c0f;
- val |= 0x1405;
- mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_4, val);
-
- /* Setup the switcher mode for SW3 & SW4 */
- mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_5, &val);
- val &= ~0xf0f;
- val |= 0x505;
- mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_5, val);
- } else {
- /* Set switchers in Auto in NORMAL mode & STANDBY mode for Atlas 2.0a */
- /* Setup the switcher mode for SW1 & SW2*/
- mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_4, &val);
- val &= ~0x3c0f;
- val |= 0x2008;
- mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_4, val);
-
- /* Setup the switcher mode for SW3 & SW4 */
- mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_5, &val);
- val &= ~0xf0f;
- val |= 0x808;
- mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_5, val);
- }
-
- /* Set VDIG to 1.65V, VGEN3 to 1.8V, VCAM to 2.5V */
- mc13xxx_reg_read(mc13xxx, MC13892_REG_SETTING_0, &val);
- val &= ~0x34030;
- val |= 0x10020;
- mc13xxx_reg_write(mc13xxx, MC13892_REG_SETTING_0, val);
-
- /* Set VVIDEO to 2.775V, VAUDIO to 3V, VSD to 3.15V */
- mc13xxx_reg_read(mc13xxx, MC13892_REG_SETTING_1, &val);
- val &= ~0x1FC;
- val |= 0x1F4;
- mc13xxx_reg_write(mc13xxx, MC13892_REG_SETTING_1, val);
-
- /* Configure VGEN3 and VCAM regulators to use external PNP */
- val = 0x208;
- mc13xxx_reg_write(mc13xxx, MC13892_REG_MODE_1, val);
-
- udelay(200);
-
- /* Enable VGEN3, VCAM, VAUDIO, VVIDEO, VSD regulators */
- val = 0x49249;
- mc13xxx_reg_write(mc13xxx, MC13892_REG_MODE_1, val);
-
- udelay(200);
-
- pr_info("initialized PMIC\n");
-
- console_flush();
- imx51_init_lowlevel(800);
- clock_notifier_call_chain();
-}
-
static int imx51_babbage_init(void)
{
if (!of_machine_is_compatible("fsl,imx51-babbage"))
@@ -157,8 +49,6 @@ static int imx51_babbage_init(void)
barebox_set_hostname("babbage");
- mc13xxx_register_init_callback(babbage_power_init);
-
armlinux_set_architecture(MACH_TYPE_MX51_BABBAGE);
imx51_bbu_internal_mmc_register_handler("mmc", "/dev/mmc0",
diff --git a/arch/arm/boards/freescale-mx51-babbage/power.c b/arch/arm/boards/freescale-mx51-babbage/power.c
new file mode 100644
index 000000000..35c1a0472
--- /dev/null
+++ b/arch/arm/boards/freescale-mx51-babbage/power.c
@@ -0,0 +1,127 @@
+#define pr_fmt(fmt) "babbage-power: " fmt
+
+#include <common.h>
+#include <init.h>
+#include <notifier.h>
+#include <mach/revision.h>
+#include <mach/imx5.h>
+#include <mfd/mc13xxx.h>
+
+static void babbage_power_init(struct mc13xxx *mc13xxx)
+{
+ u32 val;
+
+ /* Write needed to Power Gate 2 register */
+ mc13xxx_reg_read(mc13xxx, MC13892_REG_POWER_MISC, &val);
+ val &= ~0x10000;
+ mc13xxx_reg_write(mc13xxx, MC13892_REG_POWER_MISC, val);
+
+ /* Write needed to update Charger 0 */
+ mc13xxx_reg_write(mc13xxx, MC13892_REG_CHARGE, 0x0023807F);
+
+ /* power up the system first */
+ mc13xxx_reg_write(mc13xxx, MC13892_REG_POWER_MISC, 0x00200000);
+
+ if (imx_silicon_revision() < IMX_CHIP_REV_3_0) {
+ /* Set core voltage to 1.1V */
+ mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_0, &val);
+ val &= ~0x1f;
+ val |= 0x14;
+ mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_0, val);
+
+ /* Setup VCC (SW2) to 1.25 */
+ mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_1, &val);
+ val &= ~0x1f;
+ val |= 0x1a;
+ mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_1, val);
+
+ /* Setup 1V2_DIG1 (SW3) to 1.25 */
+ mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_2, &val);
+ val &= ~0x1f;
+ val |= 0x1a;
+ mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_2, val);
+ } else {
+ /* Setup VCC (SW2) to 1.225 */
+ mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_1, &val);
+ val &= ~0x1f;
+ val |= 0x19;
+ mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_1, val);
+
+ /* Setup 1V2_DIG1 (SW3) to 1.2 */
+ mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_2, &val);
+ val &= ~0x1f;
+ val |= 0x18;
+ mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_2, val);
+ }
+
+ if (mc13xxx_revision(mc13xxx) < MC13892_REVISION_2_0) {
+ /* Set switchers in PWM mode for Atlas 2.0 and lower */
+ /* Setup the switcher mode for SW1 & SW2*/
+ mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_4, &val);
+ val &= ~0x3c0f;
+ val |= 0x1405;
+ mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_4, val);
+
+ /* Setup the switcher mode for SW3 & SW4 */
+ mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_5, &val);
+ val &= ~0xf0f;
+ val |= 0x505;
+ mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_5, val);
+ } else {
+ /* Set switchers in Auto in NORMAL mode & STANDBY mode
+ * for Atlas 2.0a */
+ /* Setup the switcher mode for SW1 & SW2*/
+ mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_4, &val);
+ val &= ~0x3c0f;
+ val |= 0x2008;
+ mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_4, val);
+
+ /* Setup the switcher mode for SW3 & SW4 */
+ mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_5, &val);
+ val &= ~0xf0f;
+ val |= 0x808;
+ mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_5, val);
+ }
+
+ /* Set VDIG to 1.65V, VGEN3 to 1.8V, VCAM to 2.5V */
+ mc13xxx_reg_read(mc13xxx, MC13892_REG_SETTING_0, &val);
+ val &= ~0x34030;
+ val |= 0x10020;
+ mc13xxx_reg_write(mc13xxx, MC13892_REG_SETTING_0, val);
+
+ /* Set VVIDEO to 2.775V, VAUDIO to 3V, VSD to 3.15V */
+ mc13xxx_reg_read(mc13xxx, MC13892_REG_SETTING_1, &val);
+ val &= ~0x1FC;
+ val |= 0x1F4;
+ mc13xxx_reg_write(mc13xxx, MC13892_REG_SETTING_1, val);
+
+ /* Configure VGEN3 and VCAM regulators to use external PNP */
+ val = 0x208;
+ mc13xxx_reg_write(mc13xxx, MC13892_REG_MODE_1, val);
+
+ udelay(200);
+
+ /* Enable VGEN3, VCAM, VAUDIO, VVIDEO, VSD regulators */
+ val = 0x49249;
+ mc13xxx_reg_write(mc13xxx, MC13892_REG_MODE_1, val);
+
+ udelay(200);
+
+ pr_info("initialized PMIC\n");
+
+ console_flush();
+ imx51_init_lowlevel(800);
+ clock_notifier_call_chain();
+}
+
+static int imx51_babbage_power_init(void)
+{
+ if (!of_machine_is_compatible("fsl,imx51-babbage") &&
+ !of_machine_is_compatible("fsl,imx51-babbage-power"))
+ return 0;
+
+ mc13xxx_register_init_callback(babbage_power_init);
+
+ return 0;
+}
+coredevice_initcall(imx51_babbage_power_init);
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index dec5e387e..6a6710c39 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -85,6 +85,15 @@ config RESET_IMX_SRC
def_bool y
depends on ARCH_IMX6 || ARCH_IMX50 || ARCH_IMX51 || ARCH_IMX53
+#
+# PMIC configuration found on i.MX51 Babbadge board
+#
+config MACH_FREESCALE_MX51_PDK_POWER
+ bool
+ select SPI
+ select DRIVER_SPI_IMX
+ select MFD_MC13XXX
+
comment "Freescale i.MX System-on-Chip"
config ARCH_IMX1
@@ -256,9 +265,7 @@ config MACH_EMBEDSKY_E9
config MACH_FREESCALE_MX51_PDK
bool "Freescale i.MX51 PDK"
select ARCH_IMX51
- select SPI
- select DRIVER_SPI_IMX
- select MFD_MC13XXX
+ select MACH_FREESCALE_MX51_PDK_POWER
config MACH_CCMX53
bool "Digi ConnectCore i.MX53"
--
2.17.1
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