[PATCH v2 19/21] i.MX: Default CONFI_USB_IMX_PHY to 'y' on Vybrid

2016-12-12 Thread Andrey Smirnov 
Signed-off-by: Andrey Smirnov 
---
 drivers/usb/imx/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/imx/Kconfig b/drivers/usb/imx/Kconfig
index b0c6a41..8e6f315 100644
--- a/drivers/usb/imx/Kconfig
+++ b/drivers/usb/imx/Kconfig
@@ -16,4 +16,4 @@ config USB_IMX_CHIPIDEA
 
 config USB_IMX_PHY
bool
-   default y if ARCH_IMX6 && GENERIC_PHY
+   default y if (ARCH_IMX6 || ARCH_VF610) && GENERIC_PHY
-- 
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[PATCH v2 21/21] i.MX: vf610-twr: Remove MSCM setup code

2016-12-12 Thread Andrey Smirnov 
Recent kernel versions should have appropriate driver code that sets up
interrupt rounting correctly, so there's no need for that to be done in
the bootloader.

Signed-off-by: Andrey Smirnov 
---
 arch/arm/boards/freescale-vf610-twr/lowlevel.c | 5 -
 1 file changed, 5 deletions(-)

diff --git a/arch/arm/boards/freescale-vf610-twr/lowlevel.c 
b/arch/arm/boards/freescale-vf610-twr/lowlevel.c
index 6504273..109d44e 100644
--- a/arch/arm/boards/freescale-vf610-twr/lowlevel.c
+++ b/arch/arm/boards/freescale-vf610-twr/lowlevel.c
@@ -29,14 +29,9 @@ ENTRY_FUNCTION(start_vf610_twr, r0, r1, r2)
 {
int i;
void *fdt;
-   void __iomem *mscm = IOMEM(VF610_MSCM_BASE_ADDR);
 
vf610_cpu_lowlevel_init();
 
-   for (i = 0; i < VF610_MSCM_IRSPRC_NUM; i++)
-   writew(VF610_MSCM_IRSPRC_CP0_EN,
-  mscm + VF610_MSCM_IRSPRC(i));
-
if (IS_ENABLED(CONFIG_DEBUG_LL))
setup_uart();
 
-- 
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[PATCH v2 16/21] i.MX: vf610: Add low-level pin configuration helper

2016-12-12 Thread Andrey Smirnov 
Add low-level pin configuration helper for early boot code, and convert
pinctrl driver to use that code as well.

Signed-off-by: Andrey Smirnov 
---
 arch/arm/mach-imx/include/mach/iomux-vf610.h | 16 
 drivers/pinctrl/pinctrl-vf610.c  | 11 ++-
 2 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-imx/include/mach/iomux-vf610.h 
b/arch/arm/mach-imx/include/mach/iomux-vf610.h
index 1535628..087d6f2 100644
--- a/arch/arm/mach-imx/include/mach/iomux-vf610.h
+++ b/arch/arm/mach-imx/include/mach/iomux-vf610.h
@@ -223,4 +223,20 @@ enum {
VF610_PAD_DDR_ODT0__DDR_ODT_1   = IOMUX_PAD(0x02d8, 0x02d8, 0, __NA_, 
0, VF610_DDR_PAD_CTRL),
 };
 
+#define PINCTRL_VF610_MUX_SHIFT 20
+
+
+static inline void vf610_setup_pad(void __iomem *iomux, iomux_v3_cfg_t __pad)
+{
+   union iomux_v3_pad pad = { .raw = __pad };
+
+   iomux_v3_setup_pad(iomux, SHARE_MUX_CONF_REG | ZERO_OFFSET_VALID,
+  pad.cfg.mux_ctrl_ofs,
+  pad.cfg.pad_ctrl_ofs,
+  pad.cfg.sel_input_ofs,
+  pad.cfg.mux_mode << PINCTRL_VF610_MUX_SHIFT,
+  pad.cfg.pad_ctrl, pad.cfg.sel_inp);
+}
+
+
 #endif /* __IOMUX_VF610_H__ */
diff --git a/drivers/pinctrl/pinctrl-vf610.c b/drivers/pinctrl/pinctrl-vf610.c
index b479bf2..4234263 100644
--- a/drivers/pinctrl/pinctrl-vf610.c
+++ b/drivers/pinctrl/pinctrl-vf610.c
@@ -24,9 +24,10 @@
 #include 
 #include 
 
+#include 
+
 enum {
PINCTRL_VF610_MUX_LINE_SIZE = 20,
-   PINCTRL_VF610_MUX_SHIFT = 20,
 
PINCTRL_VF610_IBE = 1 << 0,
PINCTRL_VF610_OBE = 1 << 1,
@@ -60,17 +61,17 @@ static int pinctrl_vf610_set_state(struct pinctrl_device 
*pdev,
npins = size / PINCTRL_VF610_MUX_LINE_SIZE;
 
for (i = 0; i < npins; i++) {
+   iomux_v3_cfg_t pad;
u32 mux_reg   = be32_to_cpu(*list++);
u32 input_reg = be32_to_cpu(*list++);
u32 mux_val   = be32_to_cpu(*list++);
u32 input_val = be32_to_cpu(*list++);
u32 conf_val  = be32_to_cpu(*list++);
 
-   writel(mux_val << PINCTRL_VF610_MUX_SHIFT | conf_val,
-  iomux->base + mux_reg);
+   pad = IOMUX_PAD(mux_reg, mux_reg, mux_val,
+   input_reg, input_val, conf_val);
 
-   if (input_reg)
-   writel(input_val, iomux->base + input_reg);
+   vf610_setup_pad(iomux->base, pad);
}
 
return 0;
-- 
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[PATCH v2 18/21] i.MX: imx-usb-phy: Add VF610 OF compatiblity string

2016-12-12 Thread Andrey Smirnov 
>From looking at analogous Linux driver code it seems that all of the
differences between code "imx23-usbphy" and "vf610-usbphy" pertain to
suspend/resume functionality, which shouldn't affetct Barebox. As a
result this commit just adds a compatiblity string and no other code.

Signed-off-by: Andrey Smirnov 
---
 drivers/usb/imx/imx-usb-phy.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/imx/imx-usb-phy.c b/drivers/usb/imx/imx-usb-phy.c
index 9f46f8d..274153b 100644
--- a/drivers/usb/imx/imx-usb-phy.c
+++ b/drivers/usb/imx/imx-usb-phy.c
@@ -168,6 +168,8 @@ static __maybe_unused struct of_device_id 
imx_usbphy_dt_ids[] = {
{
.compatible = "fsl,imx23-usbphy",
}, {
+   .compatible = "fsl,vf610-usbphy",
+   }, {
/* sentinel */
},
 };
-- 
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[PATCH v2 20/21] i.MX: imx-usb-misc: Add Vybrid support

2016-12-12 Thread Andrey Smirnov 
Add code to do usbmisc initialization on VF610 family of SoCs. Based on
analogous code from Linux kernel.

Signed-off-by: Andrey Smirnov 
---
 drivers/usb/imx/imx-usb-misc.c | 28 
 1 file changed, 28 insertions(+)

diff --git a/drivers/usb/imx/imx-usb-misc.c b/drivers/usb/imx/imx-usb-misc.c
index 7c18ca2..9cae440 100644
--- a/drivers/usb/imx/imx-usb-misc.c
+++ b/drivers/usb/imx/imx-usb-misc.c
@@ -422,6 +422,28 @@ static __maybe_unused struct imx_usb_misc_data mx6_data = {
.post_init = mx6_post_init,
 };
 
+#define VF610_OVER_CUR_DIS BIT(7)
+
+static __maybe_unused int vf610_initialize_usb_hw(void __iomem *base, int port,
+   unsigned int flags)
+{
+   u32 reg;
+
+   if (port >= 1)
+   return -EINVAL;
+
+   if (flags & MXC_EHCI_DISABLE_OVERCURRENT) {
+   reg = readl(base);
+   writel(reg | VF610_OVER_CUR_DIS, base);
+   }
+
+   return 0;
+}
+
+static __maybe_unused struct imx_usb_misc_data vf610_data = {
+   .init = vf610_initialize_usb_hw,
+};
+
 static struct platform_device_id imx_usbmisc_ids[] = {
 #ifdef CONFIG_ARCH_IMX25
{
@@ -519,6 +541,12 @@ static __maybe_unused struct of_device_id 
imx_usbmisc_dt_ids[] = {
.data = _data,
},
 #endif
+#ifdef CONFIG_ARCH_VF610
+   {
+   .compatible = "fsl,vf610-usbmisc",
+   .data = _data,
+   },
+#endif
{
/* sentinel */
},
-- 
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[PATCH v2 17/21] i.MX: iomux-vf610: Add missing pad definitions

2016-12-12 Thread Andrey Smirnov 
Signed-off-by: Andrey Smirnov 
---
 arch/arm/mach-imx/include/mach/iomux-vf610.h | 4 
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/mach-imx/include/mach/iomux-vf610.h 
b/arch/arm/mach-imx/include/mach/iomux-vf610.h
index 087d6f2..b5c7f7f 100644
--- a/arch/arm/mach-imx/include/mach/iomux-vf610.h
+++ b/arch/arm/mach-imx/include/mach/iomux-vf610.h
@@ -163,9 +163,13 @@ enum {
VF610_PAD_PTD22__NF_IO6 = IOMUX_PAD(0x0120, 0x0120, 2, __NA_, 
0, VF610_NFC_IO_PAD_CTRL),
VF610_PAD_PTD21__NF_IO5 = IOMUX_PAD(0x0124, 0x0124, 2, __NA_, 
0, VF610_NFC_IO_PAD_CTRL),
VF610_PAD_PTD20__NF_IO4 = IOMUX_PAD(0x0128, 0x0128, 2, __NA_, 
0, VF610_NFC_IO_PAD_CTRL),
+   VF610_PAD_PTD19__GPIO_75= IOMUX_PAD(0x012C, 0x012C, 0, __NA_, 
0, VF610_GPIO_PAD_CTRL),
VF610_PAD_PTD19__NF_IO3 = IOMUX_PAD(0x012c, 0x012c, 2, __NA_, 
0, VF610_NFC_IO_PAD_CTRL),
+   VF610_PAD_PTD18__GPIO_76= IOMUX_PAD(0x0120, 0x0130, 0, __NA_, 
0, VF610_GPIO_PAD_CTRL),
VF610_PAD_PTD18__NF_IO2 = IOMUX_PAD(0x0130, 0x0130, 2, __NA_, 
0, VF610_NFC_IO_PAD_CTRL),
+   VF610_PAD_PTD17__GPIO_77= IOMUX_PAD(0x0134, 0x0134, 0, __NA_, 
0, VF610_GPIO_PAD_CTRL),
VF610_PAD_PTD17__NF_IO1 = IOMUX_PAD(0x0134, 0x0134, 2, __NA_, 
0, VF610_NFC_IO_PAD_CTRL),
+   VF610_PAD_PTD16__GPIO_78= IOMUX_PAD(0x0138, 0x0138, 0, __NA_, 
0, VF610_GPIO_PAD_CTRL),
VF610_PAD_PTD16__NF_IO0 = IOMUX_PAD(0x0138, 0x0138, 2, __NA_, 
0, VF610_NFC_IO_PAD_CTRL),
VF610_PAD_PTB24__NF_WE_B= IOMUX_PAD(0x0178, 0x0178, 5, __NA_, 
0, VF610_NFC_CN_PAD_CTRL),
VF610_PAD_PTB25__NF_CE0_B   = IOMUX_PAD(0x017c, 0x017c, 5, __NA_, 
0, VF610_NFC_CN_PAD_CTRL),
-- 
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[PATCH v2 13/21] i.MX: iomuxv3: Add low-level pad configuration routine

2016-12-12 Thread Andrey Smirnov 
Add low-level pad configuration routine that can be used by early boot
code as well as leveraged by pinmux driver.

Signed-off-by: Andrey Smirnov 
---
 arch/arm/mach-imx/include/mach/iomux-v3.h | 17 +
 1 file changed, 17 insertions(+)

diff --git a/arch/arm/mach-imx/include/mach/iomux-v3.h 
b/arch/arm/mach-imx/include/mach/iomux-v3.h
index 470f774..0205ec7 100644
--- a/arch/arm/mach-imx/include/mach/iomux-v3.h
+++ b/arch/arm/mach-imx/include/mach/iomux-v3.h
@@ -147,6 +147,23 @@ static inline void iomux_v3_setup_pad(void __iomem *iomux, 
unsigned int flags,
writel(input_val, iomux + input_reg);
 }
 
+static inline void imx_setup_pad(void __iomem *iomux, iomux_v3_cfg_t __pad)
+{
+   union iomux_v3_pad pad = { .raw = __pad };
+   uint32_t pad_ctrl;
+
+   pad_ctrl = (pad.cfg.pad_ctrl & NO_PAD_CTRL) ? 0 : pad.cfg.pad_ctrl,
+
+   iomux_v3_setup_pad(iomux, 0,
+  pad.cfg.mux_ctrl_ofs,
+  pad.cfg.pad_ctrl_ofs,
+  pad.cfg.sel_input_ofs,
+  pad.cfg.mux_mode,
+  pad_ctrl,
+  pad.cfg.sel_inp);
+}
+
+
 
 /*
  * setups a single pad in the iomuxer
-- 
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[PATCH v2 14/21] i.MX6: sabresd: Remove magic numbers in setup_uart

2016-12-12 Thread Andrey Smirnov 
Remove magic numbers in setup_uart and replace them with calls to
iomuxv3 helper functions.

Signed-off-by: Andrey Smirnov 
---
 arch/arm/boards/freescale-mx6-sabresd/lowlevel.c | 9 +++--
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/arch/arm/boards/freescale-mx6-sabresd/lowlevel.c 
b/arch/arm/boards/freescale-mx6-sabresd/lowlevel.c
index b329f46..5743dbc 100644
--- a/arch/arm/boards/freescale-mx6-sabresd/lowlevel.c
+++ b/arch/arm/boards/freescale-mx6-sabresd/lowlevel.c
@@ -2,6 +2,7 @@
 #include 
 #include 
 #include 
+#include 
 #include 
 #include 
 
@@ -11,12 +12,8 @@ static inline void setup_uart(void)
 
imx6_ungate_all_peripherals();
 
-   writel(0x1b0b1, iomuxbase + 0x0650);
-   writel(3, iomuxbase + 0x0280);
-
-   writel(0x1b0b1, iomuxbase + 0x0654);
-   writel(3, iomuxbase + 0x0284);
-   writel(1, iomuxbase + 0x0920);
+   imx_setup_pad(iomuxbase, MX6Q_PAD_CSI0_DAT10__UART1_TXD);
+   imx_setup_pad(iomuxbase, MX6Q_PAD_CSI0_DAT11__UART1_RXD);
 
imx6_uart_setup_ll();
 
-- 
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[PATCH v2 15/21] i.MX: iomuxv3: Use helper functions in iomux-v3.h

2016-12-12 Thread Andrey Smirnov 
Avoid code duplication by using helper functions from iomux-v3.h

Signed-off-by: Andrey Smirnov 
---
 drivers/pinctrl/imx-iomux-v3.c | 38 --
 1 file changed, 4 insertions(+), 34 deletions(-)

diff --git a/drivers/pinctrl/imx-iomux-v3.c b/drivers/pinctrl/imx-iomux-v3.c
index 4b3f033..bc93140 100644
--- a/drivers/pinctrl/imx-iomux-v3.c
+++ b/drivers/pinctrl/imx-iomux-v3.c
@@ -31,46 +31,17 @@ struct imx_iomux_v3 {
 };
 
 static void __iomem *iomuxv3_base;
-static struct device_d *iomuxv3_dev;
 
-static void imx_iomuxv3_setup_single(void __iomem *base, struct device_d *dev,
-   u32 mux_reg, u32 conf_reg, u32 input_reg,
-   u32 mux_val, u32 conf_val, u32 input_val)
-{
-   dev_dbg(dev,
-   "mux: 0x%08x -> 0x%04x, conf: 0x%08x -> 0x%04x input: 0x%08x -> 
0x%04x\n",
-   mux_val, mux_reg, conf_val, conf_reg, input_val, input_reg);
-
-   if (mux_reg)
-   writel(mux_val, base + mux_reg);
-   if (conf_reg)
-   writel(conf_val, base + conf_reg);
-   if (input_reg)
-   writel(input_val, base + input_reg);
-}
 
 /*
  * configures a single pad in the iomuxer
  */
 int mxc_iomux_v3_setup_pad(iomux_v3_cfg_t pad)
 {
-   u32 mux_reg = (pad & MUX_CTRL_OFS_MASK) >> MUX_CTRL_OFS_SHIFT;
-   u32 mux_val = (pad & MUX_MODE_MASK) >> MUX_MODE_SHIFT;
-   u32 input_reg = (pad & MUX_SEL_INPUT_OFS_MASK) >> 
MUX_SEL_INPUT_OFS_SHIFT;
-   u32 input_val = (pad & MUX_SEL_INPUT_MASK) >> MUX_SEL_INPUT_SHIFT;
-   u32 conf_reg = (pad & MUX_PAD_CTRL_OFS_MASK) >> MUX_PAD_CTRL_OFS_SHIFT;
-   u32 conf_val = (pad & MUX_PAD_CTRL_MASK) >> MUX_PAD_CTRL_SHIFT;
-
if (!iomuxv3_base)
return -EINVAL;
 
-   if (conf_val & NO_PAD_CTRL)
-   conf_reg = 0;
-
-   imx_iomuxv3_setup_single(iomuxv3_base, iomuxv3_dev,
-   mux_reg, conf_reg, input_reg,
-   mux_val, conf_val, input_val);
-
+   imx_setup_pad(iomuxv3_base, pad);
return 0;
 }
 EXPORT_SYMBOL(mxc_iomux_v3_setup_pad);
@@ -140,9 +111,9 @@ static int imx_iomux_v3_set_state(struct pinctrl_device 
*pdev, struct device_nod
if (conf_val & IMX_DT_NO_PAD_CTL)
conf_reg = 0;
 
-   imx_iomuxv3_setup_single(iomux->base, iomux->pinctrl.dev,
-   mux_reg, conf_reg, input_reg,
-   mux_val, conf_val, input_val);
+   iomux_v3_setup_pad(iomux->base, 0,
+  mux_reg, conf_reg, input_reg,
+  mux_val, conf_val, input_val);
}
 
return 0;
@@ -183,7 +154,6 @@ static int imx_iomux_v3_probe(struct device_d *dev)
if (IS_ERR(iores))
return PTR_ERR(iores);
iomuxv3_base = IOMEM(iores->start);
-   iomuxv3_dev = dev;
 
if (IS_ENABLED(CONFIG_PINCTRL) && dev->device_node)
ret = imx_pinctrl_dt(dev, iomuxv3_base);
-- 
2.5.5


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[PATCH v2 11/21] i.MX: iomuxv3: Add low-level pad code to headers

2016-12-12 Thread Andrey Smirnov 
Add a basic low-level pad configuration function that can be used to
implement early boot pin configuration code as well as shared with
various iomuxv3 and vf610 drivers.

Signed-off-by: Andrey Smirnov 
---
 arch/arm/mach-imx/include/mach/iomux-v3.h | 28 
 1 file changed, 28 insertions(+)

diff --git a/arch/arm/mach-imx/include/mach/iomux-v3.h 
b/arch/arm/mach-imx/include/mach/iomux-v3.h
index b8cc9af..3bf457f 100644
--- a/arch/arm/mach-imx/include/mach/iomux-v3.h
+++ b/arch/arm/mach-imx/include/mach/iomux-v3.h
@@ -16,6 +16,8 @@
 #ifndef __MACH_IOMUX_V3_H__
 #define __MACH_IOMUX_V3_H__
 
+#include 
+
 /*
  * build IOMUX_PAD structure
  *
@@ -104,6 +106,32 @@ typedef u64 iomux_v3_cfg_t;
 
 #define IOMUX_CONFIG_SION  (0x1 << 4)
 
+#define SHARE_MUX_CONF_REG 0x1
+#define ZERO_OFFSET_VALID  0x2
+
+static inline void iomux_v3_setup_pad(void __iomem *iomux, unsigned int flags,
+ u32 mux_reg, u32 conf_reg, u32 input_reg,
+ u32 mux_val, u32 conf_val, u32 input_val)
+{
+   const bool mux_ok   = !!mux_reg || (flags & ZERO_OFFSET_VALID);
+   const bool conf_ok  = !!conf_reg;
+   const bool input_ok = !!input_reg;
+
+   if (flags & SHARE_MUX_CONF_REG) {
+   mux_val |= conf_val;
+   } else {
+   if (conf_ok)
+   writel(conf_val, iomux + conf_reg);
+   }
+
+   if (mux_ok)
+   writel(mux_val, iomux + mux_reg);
+
+   if (input_ok)
+   writel(input_val, iomux + input_reg);
+}
+
+
 /*
  * setups a single pad in the iomuxer
  */
-- 
2.5.5


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[PATCH v2 10/21] i.MX: vf610: Ramp CPU clock to maximum frequency

2016-12-12 Thread Andrey Smirnov 
Mask ROM leaves the CPU running at 264Mhz, so configure the clock tree
such that CPU runs at maximum supported frequency. Maximum supported
frequncy is determined from speed grading burned into OCOTP fusebox by
the vendor.

Signed-off-by: Andrey Smirnov 
---
 arch/arm/mach-imx/Kconfig   |   1 +
 drivers/clk/imx/clk-vf610.c | 163 +++-
 2 files changed, 162 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index af533ea..074f90f 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -162,6 +162,7 @@ config ARCH_VF610
select OFTREE
select COMMON_CLK
select COMMON_CLK_OF_PROVIDER
+   select IMX_OCOTP# Needed for clock adjustement
 
 config IMX_MULTI_BOARDS
bool "Allow multiple boards to be selected"
diff --git a/drivers/clk/imx/clk-vf610.c b/drivers/clk/imx/clk-vf610.c
index 9b9ac6c..41fa3e9 100644
--- a/drivers/clk/imx/clk-vf610.c
+++ b/drivers/clk/imx/clk-vf610.c
@@ -16,7 +16,10 @@
 #include 
 #include 
 #include 
+#include 
 #include 
+#include 
+#include 
 
 #include "clk.h"
 
@@ -76,6 +79,7 @@
 #define PLL6_CTRL  (anatop_base + 0xa0)
 #define PLL7_CTRL  (anatop_base + 0x20)
 #define ANA_MISC1  (anatop_base + 0x160)
+#define PLL_LOCK   (anatop_base + 0x2c0)
 
 static void __iomem *anatop_base;
 static void __iomem *ccm_base;
@@ -188,8 +192,9 @@ static void __init vf610_clocks_init(struct device_node 
*ccm_node)
clk[VF610_CLK_PLL6_BYPASS_SRC] = imx_clk_mux("pll6_bypass_src", 
PLL6_CTRL, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels));
clk[VF610_CLK_PLL7_BYPASS_SRC] = imx_clk_mux("pll7_bypass_src", 
PLL7_CTRL, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels));
 
-   clk[VF610_CLK_PLL1] = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll1", 
"pll1_bypass_src", PLL1_CTRL, 0x1);
-   clk[VF610_CLK_PLL2] = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll2", 
"pll2_bypass_src", PLL2_CTRL, 0x1);
+   clk[VF610_CLK_PLL1] = imx_clk_pllv3_locked(IMX_PLLV3_SYS_VF610, "pll1", 
"pll1_bypass_src", PLL1_CTRL, 0x1, PLL_LOCK, BIT(6));
+   clk[VF610_CLK_PLL2] = imx_clk_pllv3_locked(IMX_PLLV3_SYS_VF610, "pll2", 
"pll2_bypass_src", PLL2_CTRL, 0x1, PLL_LOCK, BIT(5));
+
clk[VF610_CLK_PLL3] = imx_clk_pllv3(IMX_PLLV3_USB_VF610, "pll3", 
"pll3_bypass_src", PLL3_CTRL, 0x2);
clk[VF610_CLK_PLL4] = imx_clk_pllv3(IMX_PLLV3_AV,  "pll4", 
"pll4_bypass_src", PLL4_CTRL, 0x7f);
clk[VF610_CLK_PLL5] = imx_clk_pllv3(IMX_PLLV3_ENET,"pll5", 
"pll5_bypass_src", PLL5_CTRL, 0x3);
@@ -444,3 +449,157 @@ static void __init vf610_clocks_init(struct device_node 
*ccm_node)
of_clk_add_provider(np, of_clk_src_onecell_get, _data);
 }
 CLK_OF_DECLARE(vf610, "fsl,vf610-ccm", vf610_clocks_init);
+
+enum {
+   VF610_SPEED_500 = 0b1110,
+   VF610_SPEED_400 = 0b1001,
+   VF610_SPEED_266 = 0b0001,
+
+   DDRMC_CR117 = 0x01d4,
+   DDRMC_CR117_AXI0_FITYPEREG_SYNC = 0b01 << 16,
+};
+
+static int vf610_switch_cpu_clock_to_500mhz(void)
+{
+   int ret;
+
+   /*
+* When switching A5 CPU to 500Mhz we expect DDRC to be
+* clocked by PLL2_PFD2 and the system to be configured in
+* asynchronous mode.
+*
+* We also can't just use default PFD1 output of PLL1 due to
+* Errata e6235, so we have to re-clock the PLL itself and use
+* its output to clock the CPU directly.
+*/
+
+   if (clk_get_parent(clk[VF610_CLK_DDR_SEL]) != clk[VF610_CLK_PLL2_PFD2]) 
{
+   pr_warn("DDRC is clocked by PLL1, can't switch CPU clock");
+   return -EINVAL;
+   }
+
+   ret = clk_set_parent(clk[VF610_CLK_SYS_SEL], clk[VF610_CLK_PLL2_BUS]);
+   if (ret < 0) {
+   pr_crit("Unable to re-parent '%s'\n",
+   clk[VF610_CLK_SYS_SEL]->name);
+   return ret;
+   }
+
+   ret = clk_set_rate(clk[VF610_CLK_PLL1], 5);
+   if (ret < 0) {
+   pr_crit("Unable to set %s to 500Mhz %d\n",
+   clk[VF610_CLK_PLL1]->name, ret);
+   return ret;
+   }
+
+   ret = clk_set_parent(clk[VF610_CLK_PLL1_PFD_SEL], 
clk[VF610_CLK_PLL1_SYS]);
+   if (ret < 0) {
+   pr_crit("Unable to re-parent '%s'\n",
+   clk[VF610_CLK_PLL1_PFD_SEL]->name);
+   return ret;
+   }
+
+   ret = clk_set_parent(clk[VF610_CLK_SYS_SEL], 
clk[VF610_CLK_PLL1_PFD_SEL]);
+   if (ret < 0) {
+   pr_crit("Unable to re-parent '%s'\n",
+   clk[VF610_CLK_SYS_SEL]->name);
+   return ret;
+   }
+
+   /*
+* imx_clk_divider has no error path in its set_rate hook
+*/
+   clk_set_rate(clk[VF610_CLK_SYS_BUS], 
clk_get_rate(clk[VF610_CLK_SYS_SEL]));
+   clk_set_rate(clk[VF610_CLK_PLATFORM_BUS],

[PATCH v2 09/21] i.MX: Add fusemap for VF610

2016-12-12 Thread Andrey Smirnov 
Add fusemap header for VF610 and move out fuse definitions, that are
shared with i.MX6 familiy into a sperate file (ocotp-fusemap.h).

Signed-off-by: Andrey Smirnov 
---
 arch/arm/mach-imx/include/mach/imx6-fusemap.h  | 42 +-
 arch/arm/mach-imx/include/mach/ocotp-fusemap.h | 49 ++
 arch/arm/mach-imx/include/mach/vf610-fusemap.h | 15 
 3 files changed, 65 insertions(+), 41 deletions(-)
 create mode 100644 arch/arm/mach-imx/include/mach/ocotp-fusemap.h
 create mode 100644 arch/arm/mach-imx/include/mach/vf610-fusemap.h

diff --git a/arch/arm/mach-imx/include/mach/imx6-fusemap.h 
b/arch/arm/mach-imx/include/mach/imx6-fusemap.h
index efa16fd..e14044e 100644
--- a/arch/arm/mach-imx/include/mach/imx6-fusemap.h
+++ b/arch/arm/mach-imx/include/mach/imx6-fusemap.h
@@ -1,62 +1,22 @@
 #ifndef __MACH_IMX_IMX6_OCOTP_H
 #define __MACH_IMX_IMX6_OCOTP_H
 
-#include 
+#include 
 
-#define IMX6_OCOTP_TESTER_LOCK (OCOTP_WORD(0x400) | OCOTP_BIT(0) | 
OCOTP_WIDTH(2))
-#define IMX6_OCOTP_BOOT_CFG_LOCK   (OCOTP_WORD(0x400) | OCOTP_BIT(2) | 
OCOTP_WIDTH(2))
-#define IMX6_OCOTP_MEM_TRIM_LOCK   (OCOTP_WORD(0x400) | OCOTP_BIT(4) | 
OCOTP_WIDTH(2))
-#define IMX6_OCOTP_SJC_RESP_LOCK   (OCOTP_WORD(0x400) | OCOTP_BIT(6) | 
OCOTP_WIDTH(1))
-#define IMX6_OCOTP_MAC_ADDR_LOCK   (OCOTP_WORD(0x400) | OCOTP_BIT(8) | 
OCOTP_WIDTH(2))
-#define IMX6_OCOTP_GP1_LOCK(OCOTP_WORD(0x400) | OCOTP_BIT(10) | 
OCOTP_WIDTH(2))
-#define IMX6_OCOTP_GP2_LOCK(OCOTP_WORD(0x400) | OCOTP_BIT(12) | 
OCOTP_WIDTH(2))
-#define IMX6_OCOTP_SRK_LOCK(OCOTP_WORD(0x400) | OCOTP_BIT(14) | 
OCOTP_WIDTH(1))
-#define IMX6_OCOTP_ANALOG_LOCK (OCOTP_WORD(0x400) | OCOTP_BIT(18) | 
OCOTP_WIDTH(2))
-#define IMX6_OCOTP_MISC_CONF_LOCK  (OCOTP_WORD(0x400) | OCOTP_BIT(22) | 
OCOTP_WIDTH(1))
-
-/* 0 <= n <= 1 */
-#define IMX6_OCOTP_UNIQUE_ID(n)(OCOTP_WORD(0x410 + 0x10 * (n)) 
| OCOTP_BIT(0) | OCOTP_WIDTH(32))
 #define IMX6_OCOTP_SI_REV  (OCOTP_WORD(0x430) | OCOTP_BIT(16) | 
OCOTP_WIDTH(4))
-#define IMX6_OCOTP_NUM_CORES   (OCOTP_WORD(0x430) | OCOTP_BIT(20) | 
OCOTP_WIDTH(2))
 #define IMX6_OCOTP_SATA_RST_SRC(OCOTP_WORD(0x430) | 
OCOTP_BIT(24) | OCOTP_WIDTH(1))
-#define IMX6_OCOTP_MLB_DISABLE (OCOTP_WORD(0x430) | OCOTP_BIT(26) | 
OCOTP_WIDTH(1))
 #define IMX6_OCOTP_VPU_DISABLE (OCOTP_WORD(0x440) | OCOTP_BIT(15) | 
OCOTP_WIDTH(1))
 #define IMX6_OCOTP_SPEED_GRADING   (OCOTP_WORD(0x440) | OCOTP_BIT(16) | 
OCOTP_WIDTH(2))
-#define IMX6_OCOTP_BOOT_CFG1   (OCOTP_WORD(0x450) | OCOTP_BIT(0) | 
OCOTP_WIDTH(8))
-#define IMX6_OCOTP_BOOT_CFG2   (OCOTP_WORD(0x450) | OCOTP_BIT(8) | 
OCOTP_WIDTH(8))
-#define IMX6_OCOTP_BOOT_CFG3   (OCOTP_WORD(0x450) | OCOTP_BIT(16) | 
OCOTP_WIDTH(8))
-#define IMX6_OCOTP_BOOT_CFG4   (OCOTP_WORD(0x450) | OCOTP_BIT(24) | 
OCOTP_WIDTH(8))
-#define IMX6_OCOTP_SEC_CONFIG  (OCOTP_WORD(0x460) | OCOTP_BIT(1) | 
OCOTP_WIDTH(1))
-#define IMX6_OCOTP_DIR_BT_DIS  (OCOTP_WORD(0x460) | OCOTP_BIT(3) | 
OCOTP_WIDTH(1))
-#define IMX6_OCOTP_BT_FUSE_SEL (OCOTP_WORD(0x460) | OCOTP_BIT(4) | 
OCOTP_WIDTH(1))
 #define IMX6_OCOTP_DDR3_CONFIG (OCOTP_WORD(0x460) | OCOTP_BIT(8) | 
OCOTP_WIDTH(8))
 #define IMX6_OCOTP_HDCP(OCOTP_WORD(0x460) | 
OCOTP_BIT(16) | OCOTP_WIDTH(1))
-#define IMX6_OCOTP_SJC_DISABLE (OCOTP_WORD(0x460) | OCOTP_BIT(20) | 
OCOTP_WIDTH(1))
-#define IMX6_OCOTP_WDOG_ENABLE (OCOTP_WORD(0x460) | OCOTP_BIT(21) | 
OCOTP_WIDTH(1))
-#define IMX6_OCOTP_JTAG_SMODE  (OCOTP_WORD(0x460) | OCOTP_BIT(22) | 
OCOTP_WIDTH(2))
-#define IMX6_OCOTP_KTE (OCOTP_WORD(0x460) | OCOTP_BIT(26) | 
OCOTP_WIDTH(1))
-#define IMX6_OCOTP_JTAG_HEO(OCOTP_WORD(0x460) | OCOTP_BIT(27) | 
OCOTP_WIDTH(1))
 #define IMX6_OCOTP_TZASC_ENABLE(OCOTP_WORD(0x460) | 
OCOTP_BIT(28) | OCOTP_WIDTH(1))
 #define IMX6_OCOTP_SDMMC_HYS_EN(OCOTP_WORD(0x460) | 
OCOTP_BIT(29) | OCOTP_WIDTH(1))
 #define IMX6_OCOTP_eMMC_RESET_EN   (OCOTP_WORD(0x460) | OCOTP_BIT(30) | 
OCOTP_WIDTH(1))
-#define IMX6_OCOTP_NAND_READ_CMD_CODE1 (OCOTP_WORD(0x470) | OCOTP_BIT(0) | 
OCOTP_WIDTH(8))
-#define IMX6_OCOTP_NAND_READ_CMD_CODE2 (OCOTP_WORD(0x470) | OCOTP_BIT(8) | 
OCOTP_WIDTH(8))
 #define IMX6_OCOTP_BT_LPB_POLARITY (OCOTP_WORD(0x470) | OCOTP_BIT(20) | 
OCOTP_WIDTH(1))
 #define IMX6_OCOTP_LPB_BOOT(OCOTP_WORD(0x470) | OCOTP_BIT(21) | 
OCOTP_WIDTH(2))
 #define IMX6_OCOTP_MMC_DLL_DLY (OCOTP_WORD(0x470) | OCOTP_BIT(24) | 
OCOTP_WIDTH(7))
 #define IMX6_OCOTP_TEMPERATURE_GRADE   (OCOTP_WORD(0x480) | OCOTP_BIT(6) | 
OCOTP_WIDTH(2))
 #define IMX6_OCOTP_POWER_GATE_CORES(OCOTP_WORD(0x4d0) | OCOTP_BIT(31) | 
OCOTP_WIDTH(1))
-#define IMX6_OCOTP_USB_VID (OCOTP_WORD(0x4f0) | OCOTP_BIT(0) | 
OCOTP_WIDTH(16))
-#define IMX6_OCOTP_USB_PID

[PATCH v2 12/21] i.MX: iomuxv3: Add helper type to deconstruct iomux_v3_cfg_t values

2016-12-12 Thread Andrey Smirnov 
Signed-off-by: Andrey Smirnov 
---
 arch/arm/mach-imx/include/mach/iomux-v3.h | 16 
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/mach-imx/include/mach/iomux-v3.h 
b/arch/arm/mach-imx/include/mach/iomux-v3.h
index 3bf457f..470f774 100644
--- a/arch/arm/mach-imx/include/mach/iomux-v3.h
+++ b/arch/arm/mach-imx/include/mach/iomux-v3.h
@@ -78,6 +78,22 @@ typedef u64 iomux_v3_cfg_t;
((iomux_v3_cfg_t)(_sel_input_ofs) << MUX_SEL_INPUT_OFS_SHIFT) | 
\
((iomux_v3_cfg_t)(_sel_input) << MUX_SEL_INPUT_SHIFT))
 
+
+struct iomux_v3_pad_configuration {
+   u64 mux_ctrl_ofs  : 12;
+   u64 pad_ctrl_ofs  : 12;
+   u64 sel_input_ofs : 12;
+   u64 mux_mode  : 5;
+   u64 pad_ctrl  : 18;
+   u64 sel_inp   : 4;
+   u64 reserved  : 1;
+} __packed;
+
+union iomux_v3_pad {
+   iomux_v3_cfg_t raw;
+   struct iomux_v3_pad_configuration cfg;
+};
+
 #define NEW_PAD_CTRL(cfg, pad) (((cfg) & ~MUX_PAD_CTRL_MASK) | 
MUX_PAD_CTRL(pad))
 /*
  * Use to set PAD control
-- 
2.5.5


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[PATCH v2 06/21] i.MX: clk: Add IMX_PLLV3_SYS_VF610 subtype

2016-12-12 Thread Andrey Smirnov 
Add IMX_PLLV3_SYS_VF610 subtype to pllv3 code to be able to control and
re-clock PLL1 and PLL2 on Vybrid SoC. This commit also introduces
imx_clk_pllv3_locked which allows the user to create PLLv3 and specify
how it should be polled for "locked" status (used in .set_rate callback)

Signed-off-by: Andrey Smirnov 
---
 drivers/clk/imx/clk-pllv3.c | 108 
 drivers/clk/imx/clk.h   |   5 ++
 2 files changed, 113 insertions(+)

diff --git a/drivers/clk/imx/clk-pllv3.c b/drivers/clk/imx/clk-pllv3.c
index 29c0f1c..dd924a4 100644
--- a/drivers/clk/imx/clk-pllv3.c
+++ b/drivers/clk/imx/clk-pllv3.c
@@ -26,6 +26,8 @@
 #define PLL_NUM_OFFSET 0x10
 #define PLL_DENOM_OFFSET   0x20
 
+#define SYS_VF610_PLL_OFFSET   0x10
+
 #define BM_PLL_POWER   (0x1 << 12)
 #define BM_PLL_ENABLE  (0x1 << 13)
 #define BM_PLL_BYPASS  (0x1 << 16)
@@ -38,6 +40,8 @@ struct clk_pllv3 {
u32 div_mask;
u32 div_shift;
const char  *parent;
+   void __iomem*lock_reg;
+   u32 lock_mask;
 };
 
 #define to_clk_pllv3(_clk) container_of(_clk, struct clk_pllv3, clk)
@@ -279,6 +283,88 @@ static const struct clk_ops clk_pllv3_mlb_ops = {
.disable= clk_pllv3_disable,
 };
 
+static unsigned long clk_pllv3_sys_vf610_recalc_rate(struct clk *clk,
+unsigned long parent_rate)
+{
+   struct clk_pllv3 *pll = to_clk_pllv3(clk);
+
+   u32 mfn = readl(pll->base + SYS_VF610_PLL_OFFSET + PLL_NUM_OFFSET);
+   u32 mfd = readl(pll->base + SYS_VF610_PLL_OFFSET + PLL_DENOM_OFFSET);
+   u32 div = (readl(pll->base) & pll->div_mask) ? 22 : 20;
+
+   return (parent_rate * div) + ((parent_rate / mfd) * mfn);
+}
+
+static long clk_pllv3_sys_vf610_round_rate(struct clk *clk, unsigned long rate,
+  unsigned long *prate)
+{
+   unsigned long parent_rate = *prate;
+   unsigned long min_rate = parent_rate * 20;
+   unsigned long max_rate = 52800;
+   u32 mfn, mfd = 100;
+   u64 temp64;
+
+   if (rate >= max_rate)
+   return max_rate;
+   else if (rate < min_rate)
+   rate = min_rate;
+
+   temp64 = (u64) (rate - 20 * parent_rate);
+   temp64 *= mfd;
+   do_div(temp64, parent_rate);
+   mfn = temp64;
+
+   return parent_rate * 20 + parent_rate / mfd * mfn;
+}
+
+static int clk_pllv3_sys_vf610_set_rate(struct clk *clk, unsigned long rate,
+   unsigned long parent_rate)
+{
+   struct clk_pllv3 *pll = to_clk_pllv3(clk);
+   unsigned long min_rate = parent_rate * 20;
+   unsigned long max_rate = 52800;
+   u32 val;
+   u32 mfn, mfd = 100;
+   u64 temp64;
+
+   if (rate < min_rate || rate > max_rate)
+   return -EINVAL;
+
+   val = readl(pll->base);
+
+   if (rate == max_rate) {
+   writel(0, pll->base + SYS_VF610_PLL_OFFSET + PLL_NUM_OFFSET);
+   val |= pll->div_mask;
+   writel(val, pll->base);
+
+   return 0;
+   } else {
+   val &= ~pll->div_mask;
+   }
+
+   temp64 = (u64) (rate - 20 * parent_rate);
+   temp64 *= mfd;
+   do_div(temp64, parent_rate);
+   mfn = temp64;
+
+   writel(val, pll->base);
+   writel(mfn, pll->base + SYS_VF610_PLL_OFFSET + PLL_NUM_OFFSET);
+   writel(mfd, pll->base + SYS_VF610_PLL_OFFSET + PLL_DENOM_OFFSET);
+
+   while (!(readl(pll->lock_reg) & pll->lock_mask))
+   ;
+
+   return 0;
+}
+
+static const struct clk_ops clk_pllv3_sys_vf610_ops = {
+   .enable = clk_pllv3_enable,
+   .disable= clk_pllv3_disable,
+   .recalc_rate= clk_pllv3_sys_vf610_recalc_rate,
+   .round_rate = clk_pllv3_sys_vf610_round_rate,
+   .set_rate   = clk_pllv3_sys_vf610_set_rate,
+};
+
 struct clk *imx_clk_pllv3(enum imx_pllv3_type type, const char *name,
  const char *parent, void __iomem *base,
  u32 div_mask)
@@ -290,6 +376,9 @@ struct clk *imx_clk_pllv3(enum imx_pllv3_type type, const 
char *name,
pll = xzalloc(sizeof(*pll));
 
switch (type) {
+   case IMX_PLLV3_SYS_VF610:
+   ops = _pllv3_sys_vf610_ops;
+   break;
case IMX_PLLV3_SYS:
ops = _pllv3_sys_ops;
break;
@@ -327,3 +416,22 @@ struct clk *imx_clk_pllv3(enum imx_pllv3_type type, const 
char *name,
 
return >clk;
 }
+
+struct clk *imx_clk_pllv3_locked(enum imx_pllv3_type type, const char *name,
+const char *parent, void __iomem *base,
+u32 div_mask, void __iomem *lock_reg, u32 
lock_mask)
+{
+   struct clk *clk;
+   struct clk_pllv3 *pll;
+
+   clk = imx_clk_pllv3(type, name,

[PATCH v2 08/21] i.MX: imx6-fusemap: Fix SJC_RESP_LOCK width

2016-12-12 Thread Andrey Smirnov 
According to the datasheet SJC_RESP_LOCK is on bit wide, adjust the
definition correspondingly.

Signed-off-by: Andrey Smirnov 
---
 arch/arm/mach-imx/include/mach/imx6-fusemap.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-imx/include/mach/imx6-fusemap.h 
b/arch/arm/mach-imx/include/mach/imx6-fusemap.h
index 5fdd904..efa16fd 100644
--- a/arch/arm/mach-imx/include/mach/imx6-fusemap.h
+++ b/arch/arm/mach-imx/include/mach/imx6-fusemap.h
@@ -6,7 +6,7 @@
 #define IMX6_OCOTP_TESTER_LOCK (OCOTP_WORD(0x400) | OCOTP_BIT(0) | 
OCOTP_WIDTH(2))
 #define IMX6_OCOTP_BOOT_CFG_LOCK   (OCOTP_WORD(0x400) | OCOTP_BIT(2) | 
OCOTP_WIDTH(2))
 #define IMX6_OCOTP_MEM_TRIM_LOCK   (OCOTP_WORD(0x400) | OCOTP_BIT(4) | 
OCOTP_WIDTH(2))
-#define IMX6_OCOTP_SJC_RESP_LOCK   (OCOTP_WORD(0x400) | OCOTP_BIT(6) | 
OCOTP_WIDTH(2))
+#define IMX6_OCOTP_SJC_RESP_LOCK   (OCOTP_WORD(0x400) | OCOTP_BIT(6) | 
OCOTP_WIDTH(1))
 #define IMX6_OCOTP_MAC_ADDR_LOCK   (OCOTP_WORD(0x400) | OCOTP_BIT(8) | 
OCOTP_WIDTH(2))
 #define IMX6_OCOTP_GP1_LOCK(OCOTP_WORD(0x400) | OCOTP_BIT(10) | 
OCOTP_WIDTH(2))
 #define IMX6_OCOTP_GP2_LOCK(OCOTP_WORD(0x400) | OCOTP_BIT(12) | 
OCOTP_WIDTH(2))
-- 
2.5.5


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[PATCH v2 02/21] i.MX: ocotp: Move memory reversing into a subroutine

2016-12-12 Thread Andrey Smirnov 
Move memory reversing, found in imx_ocotp_get_mac and
imx_ocotp_set_mac, into a subroutine to avoid code duplication.

Signed-off-by: Andrey Smirnov 
---
 arch/arm/mach-imx/ocotp.c | 20 +---
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/arch/arm/mach-imx/ocotp.c b/arch/arm/mach-imx/ocotp.c
index 68ff0ce..7f625d8 100644
--- a/arch/arm/mach-imx/ocotp.c
+++ b/arch/arm/mach-imx/ocotp.c
@@ -397,19 +397,26 @@ static void imx_ocotp_init_dt(struct device_d *dev, void 
__iomem *base)
}
 }
 
+static void memreverse(void *dest, const void *src, size_t n)
+{
+   char *destp = dest;
+   const char *srcp = src + n - 1;
+
+   while(n--)
+   *destp++ = *srcp--;
+}
+
 static int imx_ocotp_get_mac(struct param_d *param, void *priv)
 {
struct ocotp_priv *ocotp_priv = priv;
char buf[8];
-   int i, ret;
+   int ret;
 
ret = regmap_bulk_read(ocotp_priv->map, MAC_OFFSET, buf, MAC_BYTES);
if (ret < 0)
return ret;
 
-   for (i = 0; i < 6; i++)
-   ocotp_priv->ethaddr[i] = buf[5 - i];
-
+   memreverse(ocotp_priv->ethaddr, buf, 6);
return 0;
 }
 
@@ -417,10 +424,9 @@ static int imx_ocotp_set_mac(struct param_d *param, void 
*priv)
 {
struct ocotp_priv *ocotp_priv = priv;
char buf[8];
-   int i, ret;
+   int ret;
 
-   for (i = 0; i < 6; i++)
-   buf[5 - i] = ocotp_priv->ethaddr[i];
+   memreverse(buf, ocotp_priv->ethaddr, 6);
buf[6] = 0; buf[7] = 0;
 
ret = regmap_bulk_write(ocotp_priv->map, MAC_OFFSET, buf, MAC_BYTES);
-- 
2.5.5


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[PATCH 05/21] i.MX: ocotp: Initialize OCOTP as early as possible

2016-12-12 Thread Andrey Smirnov 
On Vybrid SoC OCOTP module contains speed grading information that is
needed to correctly adjust CPU clock to its maxumum rate, so we need to
have this information handy as early as possible.

Signed-off-by: Andrey Smirnov 
---
 arch/arm/mach-imx/ocotp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-imx/ocotp.c b/arch/arm/mach-imx/ocotp.c
index 557..2c89f5e 100644
--- a/arch/arm/mach-imx/ocotp.c
+++ b/arch/arm/mach-imx/ocotp.c
@@ -610,4 +610,4 @@ static int imx_ocotp_init(void)
 
return 0;
 }
-coredevice_initcall(imx_ocotp_init);
+postcore_initcall(imx_ocotp_init);
-- 
2.5.5


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[PATCH v2 03/21] i.MX: ocotp: Simplify MAC address storing logic

2016-12-12 Thread Andrey Smirnov 
Store MAC addresses as 8 byte buffer to avoid the need to have extra
code to deal with "6 into 8" conversions and the need to have various
magic numbers.

Signed-off-by: Andrey Smirnov 
---
 arch/arm/mach-imx/ocotp.c | 11 +--
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mach-imx/ocotp.c b/arch/arm/mach-imx/ocotp.c
index 7f625d8..f549c94 100644
--- a/arch/arm/mach-imx/ocotp.c
+++ b/arch/arm/mach-imx/ocotp.c
@@ -84,7 +84,7 @@ struct ocotp_priv {
struct device_d dev;
int permanent_write_enable;
int sense_enable;
-   char ethaddr[6];
+   char ethaddr[MAC_BYTES];
struct regmap_config map_config;
const struct imx_ocotp_data *data;
 };
@@ -409,25 +409,24 @@ static void memreverse(void *dest, const void *src, 
size_t n)
 static int imx_ocotp_get_mac(struct param_d *param, void *priv)
 {
struct ocotp_priv *ocotp_priv = priv;
-   char buf[8];
+   char buf[MAC_BYTES];
int ret;
 
ret = regmap_bulk_read(ocotp_priv->map, MAC_OFFSET, buf, MAC_BYTES);
if (ret < 0)
return ret;
 
-   memreverse(ocotp_priv->ethaddr, buf, 6);
+   memreverse(ocotp_priv->ethaddr, buf, MAC_BYTES);
return 0;
 }
 
 static int imx_ocotp_set_mac(struct param_d *param, void *priv)
 {
struct ocotp_priv *ocotp_priv = priv;
-   char buf[8];
+   char buf[MAC_BYTES];
int ret;
 
-   memreverse(buf, ocotp_priv->ethaddr, 6);
-   buf[6] = 0; buf[7] = 0;
+   memreverse(buf, ocotp_priv->ethaddr, MAC_BYTES);
 
ret = regmap_bulk_write(ocotp_priv->map, MAC_OFFSET, buf, MAC_BYTES);
if (ret < 0)
-- 
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[PATCH v2 07/21] i.MX: ocotp: Add imx_ocotp_sense_enable()

2016-12-12 Thread Andrey Smirnov 
Add imx_ocotp_sense_enable() function to allow changing that aspect of
OCOTP driver behaviour before calling imx_ocotp_read_field()

Signed-off-by: Andrey Smirnov 
---
 arch/arm/mach-imx/include/mach/ocotp.h | 1 +
 arch/arm/mach-imx/ocotp.c  | 7 +++
 2 files changed, 8 insertions(+)

diff --git a/arch/arm/mach-imx/include/mach/ocotp.h 
b/arch/arm/mach-imx/include/mach/ocotp.h
index 430bc75..5474c27 100644
--- a/arch/arm/mach-imx/include/mach/ocotp.h
+++ b/arch/arm/mach-imx/include/mach/ocotp.h
@@ -16,5 +16,6 @@
 int imx_ocotp_read_field(uint32_t field, unsigned *value);
 int imx_ocotp_write_field(uint32_t field, unsigned value);
 int imx_ocotp_permanent_write(int enable);
+bool imx_ocotp_sense_enable(bool enable);
 
 #endif /* __MACH_IMX_OCOTP_H */
diff --git a/arch/arm/mach-imx/ocotp.c b/arch/arm/mach-imx/ocotp.c
index 2c89f5e..fe12363 100644
--- a/arch/arm/mach-imx/ocotp.c
+++ b/arch/arm/mach-imx/ocotp.c
@@ -359,6 +359,13 @@ int imx_ocotp_permanent_write(int enable)
return 0;
 }
 
+bool imx_ocotp_sense_enable(bool enable)
+{
+   const bool old_value = imx_ocotp->sense_enable;
+   imx_ocotp->sense_enable = enable;
+   return old_value;
+}
+
 static uint32_t inc_offset(uint32_t offset)
 {
if ((offset & 0x3) == 0x3)
-- 
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[PATCH v2 04/21] i.MX: ocotp: Add provisions for storing multiple MAC addresses

2016-12-12 Thread Andrey Smirnov 
i.MX SoC variants like Vybrid have more than one built-in Ethernet
interface and as a consequence support storing more than one MAC address
in OCOTP module. Add code to create multiple 'mac_addr' parameters as
well as 'mac_addr' as an "alias" to 'mac_addr0' for backwards
compatibility.

Signed-off-by: Andrey Smirnov 
---
 arch/arm/mach-imx/ocotp.c | 65 +++
 1 file changed, 49 insertions(+), 16 deletions(-)

diff --git a/arch/arm/mach-imx/ocotp.c b/arch/arm/mach-imx/ocotp.c
index f549c94..557 100644
--- a/arch/arm/mach-imx/ocotp.c
+++ b/arch/arm/mach-imx/ocotp.c
@@ -69,12 +69,22 @@
 /* Other definitions */
 #define IMX6_OTP_DATA_ERROR_VAL0xBADABADA
 #define DEF_RELAX  20
-#define MAC_OFFSET (0x22 * 4)
+#define MAC_OFFSET_0   (0x22 * 4)
+#define MAC_OFFSET_1   (0x24 * 4)
+#define MAX_MAC_OFFSETS2
 #define MAC_BYTES  8
 
 struct imx_ocotp_data {
int num_regs;
u32 (*addr_to_offset)(u32 addr);
+   u8  mac_offsets[MAX_MAC_OFFSETS];
+   u8  mac_offsets_num;
+};
+
+struct ocotp_priv_ethaddr {
+   char value[MAC_BYTES];
+   struct regmap *map;
+   u8 offset;
 };
 
 struct ocotp_priv {
@@ -84,9 +94,10 @@ struct ocotp_priv {
struct device_d dev;
int permanent_write_enable;
int sense_enable;
-   char ethaddr[MAC_BYTES];
+   struct ocotp_priv_ethaddr ethaddr[MAX_MAC_OFFSETS];
struct regmap_config map_config;
const struct imx_ocotp_data *data;
+   int  mac_offset_idx;
 };
 
 static struct ocotp_priv *imx_ocotp;
@@ -408,31 +419,28 @@ static void memreverse(void *dest, const void *src, 
size_t n)
 
 static int imx_ocotp_get_mac(struct param_d *param, void *priv)
 {
-   struct ocotp_priv *ocotp_priv = priv;
char buf[MAC_BYTES];
int ret;
+   struct ocotp_priv_ethaddr *ethaddr = priv;
 
-   ret = regmap_bulk_read(ocotp_priv->map, MAC_OFFSET, buf, MAC_BYTES);
+   ret = regmap_bulk_read(ethaddr->map, ethaddr->offset,
+  buf, MAC_BYTES);
if (ret < 0)
return ret;
 
-   memreverse(ocotp_priv->ethaddr, buf, MAC_BYTES);
+   memreverse(ethaddr->value, buf, MAC_BYTES);
return 0;
 }
 
 static int imx_ocotp_set_mac(struct param_d *param, void *priv)
 {
-   struct ocotp_priv *ocotp_priv = priv;
char buf[MAC_BYTES];
-   int ret;
+   struct ocotp_priv_ethaddr *ethaddr = priv;
 
-   memreverse(buf, ocotp_priv->ethaddr, MAC_BYTES);
-
-   ret = regmap_bulk_write(ocotp_priv->map, MAC_OFFSET, buf, MAC_BYTES);
-   if (ret < 0)
-   return ret;
+   memreverse(buf, ethaddr->value, MAC_BYTES);
 
-   return 0;
+   return regmap_bulk_write(ethaddr->map, ethaddr->offset,
+buf, MAC_BYTES);
 }
 
 static struct regmap_bus imx_ocotp_regmap_bus = {
@@ -491,9 +499,28 @@ static int imx_ocotp_probe(struct device_d *dev)
NULL, NULL, >permanent_write_enable, 
NULL);
}
 
-   if (IS_ENABLED(CONFIG_NET))
-   dev_add_param_mac(&(priv->dev), "mac_addr", imx_ocotp_set_mac,
-   imx_ocotp_get_mac, priv->ethaddr, priv);
+   if (IS_ENABLED(CONFIG_NET)) {
+   int i;
+   struct ocotp_priv_ethaddr *ethaddr;
+
+   for (i = 0; i < priv->data->mac_offsets_num; i++) {
+   ethaddr = >ethaddr[i];
+   ethaddr->map = priv->map;
+   ethaddr->offset = priv->data->mac_offsets[i];
+
+   dev_add_param_mac(>dev, xasprintf("mac_addr%d", 
i),
+ imx_ocotp_set_mac, imx_ocotp_get_mac,
+ ethaddr->value, ethaddr);
+   }
+
+   /*
+* Alias to mac_addr0 for backwards compatibility
+*/
+   ethaddr = >ethaddr[0];
+   dev_add_param_mac(>dev, "mac_addr",
+ imx_ocotp_set_mac, imx_ocotp_get_mac,
+ ethaddr->value, ethaddr);
+   }
 
dev_add_param_bool(&(priv->dev), "sense_enable", NULL, NULL, 
>sense_enable, priv);
 
@@ -532,16 +559,22 @@ static u32 vf610_addr_to_offset(u32 addr)
 static struct imx_ocotp_data imx6q_ocotp_data = {
.num_regs = 512,
.addr_to_offset = imx6q_addr_to_offset,
+   .mac_offsets_num = 1,
+   .mac_offsets = { MAC_OFFSET_0 },
 };
 
 static struct imx_ocotp_data imx6sl_ocotp_data = {
.num_regs = 256,
.addr_to_offset = imx6sl_addr_to_offset,
+   .mac_offsets_num = 1,
+   .mac_offsets = { MAC_OFFSET_0 },
 };
 
 static struct imx_ocotp_data vf610_ocotp_data = {
.num_regs = 512,
.addr_to_offset = vf610_addr_to_offset,
+

[PATCH v2 01/21] i.MX: esdhc: Enable host->clk during initialization

2016-12-12 Thread Andrey Smirnov 
Signed-off-by: Andrey Smirnov 
---
 drivers/mci/imx-esdhc.c | 7 +++
 1 file changed, 7 insertions(+)

diff --git a/drivers/mci/imx-esdhc.c b/drivers/mci/imx-esdhc.c
index d72e3f8..40a086b 100644
--- a/drivers/mci/imx-esdhc.c
+++ b/drivers/mci/imx-esdhc.c
@@ -631,6 +631,13 @@ static int fsl_esdhc_probe(struct device_d *dev)
if (IS_ERR(host->clk))
return PTR_ERR(host->clk);
 
+   ret = clk_enable(host->clk);
+   if (ret) {
+   dev_err(dev, "Failed to enable clock: %s\n",
+   strerror(ret));
+   return ret;
+   }
+
host->dev = dev;
iores = dev_request_mem_resource(dev, 0);
if (IS_ERR(iores))
-- 
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[PATCH v2 00/21] Vybrid related patches

2016-12-12 Thread Andrey Smirnov 
Hi everyone,

This is second version of my "Vybrid related patches" patchset (for v1
see [1]), and the changes are as follows:

- Converted multi-MAC patch to name the device variables as per
  discussion with Sascha and Stefan [2]. (Stefan, I hope you don't
  mind my taking the liberty to implement this and it is not too
  much inconvenice to rebase your patch on top of this change. Let
  me know if there's a better way for us to sync up on this)

- Dropped configurability from VF610 clock ramping code

- Converted said code to use imx_ocotp_read_field

- Added fusemap for VF610 to accomodate previous change

- Added imx_ocotp_sense_enable() API to accomodate reading speed
  grading information on VF610 (it doesn't seem to be read into
  shadow memory on chip's bootup)

- Add a number of small code cleanups for OCOTP driver


[1] http://lists.infradead.org/pipermail/barebox/2016-December/028652.html
[2] http://lists.infradead.org/pipermail/barebox/2016-December/028669.html

Andrey Smirnov (21):
  i.MX: esdhc: Enable host->clk during initialization
  i.MX: ocotp: Move memory reversing into a subroutine
  i.MX: ocotp: Simplify MAC address storing logic
  i.MX: ocotp: Add provisions for storing multiple MAC addresses
  i.MX: ocotp: Initialize OCOTP as early as possible
  i.MX: clk: Add IMX_PLLV3_SYS_VF610 subtype
  i.MX: ocotp: Add imx_ocotp_sense_enable()
  i.MX: imx6-fusemap: Fix SJC_RESP_LOCK width
  i.MX: Add fusemap for VF610
  i.MX: vf610: Ramp CPU clock to maximum frequency
  i.MX: iomuxv3: Add low-level pad code to headers
  i.MX: iomuxv3: Add helper type to deconstruct iomux_v3_cfg_t values
  i.MX: iomuxv3: Add low-level pad configuration routine
  i.MX6: sabresd: Remove magic numbers in setup_uart
  i.MX: iomuxv3: Use helper functions in iomux-v3.h
  i.MX: vf610: Add low-level pin configuration helper
  i.MX: iomux-vf610: Add missing pad definitions
  i.MX: imx-usb-phy: Add VF610 OF compatiblity string
  i.MX: Default CONFI_USB_IMX_PHY to 'y' on Vybrid
  i.MX: imx-usb-misc: Add Vybrid support
  i.MX: vf610-twr: Remove MSCM setup code

 arch/arm/boards/freescale-mx6-sabresd/lowlevel.c |   9 +-
 arch/arm/boards/freescale-vf610-twr/lowlevel.c   |   5 -
 arch/arm/mach-imx/Kconfig|   1 +
 arch/arm/mach-imx/include/mach/imx6-fusemap.h|  42 +-
 arch/arm/mach-imx/include/mach/iomux-v3.h|  61 +
 arch/arm/mach-imx/include/mach/iomux-vf610.h |  20 +++
 arch/arm/mach-imx/include/mach/ocotp-fusemap.h   |  49 +++
 arch/arm/mach-imx/include/mach/ocotp.h   |   1 +
 arch/arm/mach-imx/include/mach/vf610-fusemap.h   |  15 +++
 arch/arm/mach-imx/ocotp.c|  93 +
 drivers/clk/imx/clk-pllv3.c  | 108 +++
 drivers/clk/imx/clk-vf610.c  | 163 ++-
 drivers/clk/imx/clk.h|   5 +
 drivers/mci/imx-esdhc.c  |   7 +
 drivers/pinctrl/imx-iomux-v3.c   |  38 +-
 drivers/pinctrl/pinctrl-vf610.c  |  11 +-
 drivers/usb/imx/Kconfig  |   2 +-
 drivers/usb/imx/imx-usb-misc.c   |  28 
 drivers/usb/imx/imx-usb-phy.c|   2 +
 19 files changed, 542 insertions(+), 118 deletions(-)
 create mode 100644 arch/arm/mach-imx/include/mach/ocotp-fusemap.h
 create mode 100644 arch/arm/mach-imx/include/mach/vf610-fusemap.h

-- 
2.5.5


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Re: [PATCH] of: base: add chosen node if it does not exist when adding initrd

2016-12-12 Thread Jan Lübbe 
On Mo, 2016-12-12 at 06:47 +0100, Sascha Hauer wrote:
> On Thu, Dec 08, 2016 at 11:15:51AM +0100, Philipp Zabel wrote:
> > If the chosen node does not exist, of_add_initrd fails to pass the
> > initrd to the kernel. Instead it should create the chosen node, just
> > like of_fixup_bootargs does.
> > 
> > Signed-off-by: Philipp Zabel 
> > ---
> >  drivers/of/base.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> Applied, thanks

This is actually a fix for booting linux-next with initramfs on barebox
and is the cause of some boot failures in our kernel-ci lab:
https://storage.kernelci.org/next/next-20161206/arm-imx_v6_v7_defconfig/lab-pengutronix/boot-imx6dl-riotboard.html

Maybe this should be merged to master instead of next?

Regards,
Jan
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