[U-Boot] [PATCH RESEND 01/14] imx: i.MX7ULP: add get_boot_device

[U-Boot] [PATCH RESEND 01/14] imx: i.MX7ULP: add get_boot_device

[Peng Fan]

Add get_boot_device for i.MX7ULP

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm/include/asm/arch-mx7ulp/imx-regs.h  | 13 +++++++++++++
 arch/arm/include/asm/arch-mx7ulp/sys_proto.h |  1 +
 arch/arm/mach-imx/mx7ulp/soc.c               | 27 +++++++++++++++++++++++++++
 3 files changed, 41 insertions(+)

diff --git a/arch/arm/include/asm/arch-mx7ulp/imx-regs.h b/arch/arm/include/asm/arch-mx7ulp/imx-regs.h
index 63b02de087..d58ed43199 100644
--- a/arch/arm/include/asm/arch-mx7ulp/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx7ulp/imx-regs.h
@@ -10,6 +10,8 @@
 
 #define ARCH_MXC
 
+#define ROM_SW_INFO_ADDR        0x000001E8
+
 #define CAAM_SEC_SRAM_BASE      (0x26000000)
 #define CAAM_SEC_SRAM_SIZE      (SZ_32K)
 #define CAAM_SEC_SRAM_END       (CAAM_SEC_SRAM_BASE + CAAM_SEC_SRAM_SIZE - 1)
@@ -1112,6 +1114,17 @@ struct usbphy_regs {
 	u32	usb1_pfda_ctrl1_tog;		/* 0x14c */
 };
 
+struct bootrom_sw_info {
+	u8 reserved_1;
+	u8 boot_dev_instance;
+	u8 boot_dev_type;
+	u8 reserved_2;
+	u32 core_freq;
+	u32 axi_freq;
+	u32 ddr_freq;
+	u32 rom_tick_freq;
+	u32 reserved_3[3];
+};
 
 #define	is_boot_from_usb(void)		(!(readl(USB_PHY0_BASE_ADDR) & (1<<20)))
 #define	disconnect_from_pc(void)	writel(0x0, USBOTG0_RBASE + 0x140)
diff --git a/arch/arm/include/asm/arch-mx7ulp/sys_proto.h b/arch/arm/include/asm/arch-mx7ulp/sys_proto.h
index 6ecde7db93..0e4c8ad15d 100644
--- a/arch/arm/include/asm/arch-mx7ulp/sys_proto.h
+++ b/arch/arm/include/asm/arch-mx7ulp/sys_proto.h
@@ -17,4 +17,5 @@ enum bt_mode {
 	SINGLE_BOOT		/* LP_BT = 0, DUAL_BT = 0 */
 };
 
+enum boot_device get_boot_device(void);
 #endif
diff --git a/arch/arm/mach-imx/mx7ulp/soc.c b/arch/arm/mach-imx/mx7ulp/soc.c
index c72f0ed3fc..6015c11869 100644
--- a/arch/arm/mach-imx/mx7ulp/soc.c
+++ b/arch/arm/mach-imx/mx7ulp/soc.c
@@ -6,6 +6,7 @@
 #include <asm/arch/clock.h>
 #include <asm/arch/imx-regs.h>
 #include <asm/arch/sys_proto.h>
+#include <asm/mach-imx/boot_mode.h>
 #include <asm/mach-imx/hab.h>
 
 static char *get_reset_cause(char *);
@@ -244,3 +245,29 @@ int mmc_get_env_dev(void)
 	return board_mmc_get_env_dev(devno);
 }
 #endif
+
+enum boot_device get_boot_device(void)
+{
+	struct bootrom_sw_info **p =
+		(struct bootrom_sw_info **)ROM_SW_INFO_ADDR;
+
+	enum boot_device boot_dev = SD1_BOOT;
+	u8 boot_type = (*p)->boot_dev_type;
+	u8 boot_instance = (*p)->boot_dev_instance;
+
+	switch (boot_type) {
+	case BOOT_TYPE_SD:
+		boot_dev = boot_instance + SD1_BOOT;
+		break;
+	case BOOT_TYPE_MMC:
+		boot_dev = boot_instance + MMC1_BOOT;
+		break;
+	case BOOT_TYPE_USB:
+		boot_dev = USB_BOOT;
+		break;
+	default:
+		break;
+	}
+
+	return boot_dev;
+}
-- 
2.16.4

[U-Boot] [PATCH RESEND 02/14] i.MX7ULP: evk: Modify FDT file to disable SD3.0 for usb boot

[Peng Fan]

Since the SD3.0 kernel driver needs M4 image support, this causes
problem for usb boot booting into kernel.  To decouple the relationship,
we modify the FDT file in u-boot to disable SD3.0.
So the kernel won't depend on M4 image.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 board/freescale/mx7ulp_evk/mx7ulp_evk.c | 47 +++++++++++++++++++++++++++++++++
 configs/mx7ulp_evk_defconfig            |  1 +
 2 files changed, 48 insertions(+)

diff --git a/board/freescale/mx7ulp_evk/mx7ulp_evk.c b/board/freescale/mx7ulp_evk/mx7ulp_evk.c
index 3a12fe1551..7527263577 100644
--- a/board/freescale/mx7ulp_evk/mx7ulp_evk.c
+++ b/board/freescale/mx7ulp_evk/mx7ulp_evk.c
@@ -4,10 +4,12 @@
  */
 
 #include <common.h>
+#include <fdt_support.h>
 #include <asm/io.h>
 #include <asm/arch/sys_proto.h>
 #include <asm/arch/mx7ulp-pins.h>
 #include <asm/arch/iomux.h>
+#include <asm/mach-imx/boot_mode.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -45,3 +47,48 @@ int board_init(void)
 
 	return 0;
 }
+
+#if IS_ENABLED(CONFIG_OF_BOARD_SETUP)
+int ft_board_setup(void *blob, bd_t *bd)
+{
+	const char *path;
+	int rc, nodeoff;
+
+	if (get_boot_device() == USB_BOOT) {
+		path = fdt_get_alias(blob, "mmc0");
+		if (!path) {
+			puts("Not found mmc0\n");
+			return 0;
+		}
+
+		nodeoff = fdt_path_offset(blob, path);
+		if (nodeoff < 0)
+			return 0;
+
+		printf("Found usdhc0 node\n");
+		if (fdt_get_property(blob, nodeoff, "vqmmc-supply",
+		    NULL) != NULL) {
+			rc = fdt_delprop(blob, nodeoff, "vqmmc-supply");
+			if (!rc) {
+				puts("Removed vqmmc-supply property\n");
+add:
+				rc = fdt_setprop(blob, nodeoff,
+						 "no-1-8-v", NULL, 0);
+				if (rc == -FDT_ERR_NOSPACE) {
+					rc = fdt_increase_size(blob, 32);
+					if (!rc)
+						goto add;
+				} else if (rc) {
+					printf("Failed to add no-1-8-v property, %d\n", rc);
+				} else {
+					puts("Added no-1-8-v property\n");
+				}
+			} else {
+				printf("Failed to remove vqmmc-supply property, %d\n", rc);
+			}
+		}
+	}
+
+	return 0;
+}
+#endif
diff --git a/configs/mx7ulp_evk_defconfig b/configs/mx7ulp_evk_defconfig
index d4eba65ac0..b5ad025ab4 100644
--- a/configs/mx7ulp_evk_defconfig
+++ b/configs/mx7ulp_evk_defconfig
@@ -3,6 +3,7 @@ CONFIG_ARCH_MX7ULP=y
 CONFIG_SYS_TEXT_BASE=0x67800000
 CONFIG_TARGET_MX7ULP_EVK=y
 CONFIG_NR_DRAM_BANKS=1
+CONFIG_OF_BOARD_SETUP=y
 CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx7ulp_evk/imximage.cfg"
 CONFIG_BOUNCE_BUFFER=y
 CONFIG_HUSH_PARSER=y
-- 
2.16.4

[U-Boot] [PATCH RESEND 03/14] i.MX7ULP: Fix system reset after a7 rtc alarm expired.

[Peng Fan]

From: Bai Ping <ping.bai@nxp.com>

The board will reboot if A7 core enter mem mode by rtc, then M4 core
enter VLLS mode after the RTC alarm expired. Enable the dumb PMIC mode
to fix this issue.
Since i.MX7ULP B0 moves the SNVS LP into M4 domain, A core can't access
it. So check the CPU rev and not apply the settings for B0.

Signed-off-by: Bai Ping <ping.bai@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm/include/asm/arch-mx7ulp/imx-regs.h | 7 +++++++
 arch/arm/mach-imx/mx7ulp/soc.c              | 4 ++++
 2 files changed, 11 insertions(+)

diff --git a/arch/arm/include/asm/arch-mx7ulp/imx-regs.h b/arch/arm/include/asm/arch-mx7ulp/imx-regs.h
index d58ed43199..3c82e9921e 100644
--- a/arch/arm/include/asm/arch-mx7ulp/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx7ulp/imx-regs.h
@@ -58,6 +58,7 @@
 #define USDHC1_AIPS2_SLOT		(56)
 #define RGPIO2P0_AIPS0_SLOT		(15)
 #define RGPIO2P1_AIPS2_SLOT		(15)
+#define SNVS_AIPS2_SLOT			(35)
 #define IOMUXC0_AIPS0_SLOT		(61)
 #define OCOTP_CTRL_AIPS1_SLOT		(38)
 #define OCOTP_CTRL_PCC1_SLOT		(38)
@@ -177,6 +178,9 @@
 #define USDHC0_RBASE	((AIPS2_BASE + (AIPS2_SLOT_SIZE * USDHC0_AIPS2_SLOT)))
 #define USDHC1_RBASE	((AIPS2_BASE + (AIPS2_SLOT_SIZE * USDHC1_AIPS2_SLOT)))
 
+#define SNVS_BASE	((AIPS2_BASE + (AIPS2_SLOT_SIZE * SNVS_AIPS2_SLOT)))
+#define SNVS_LP_LPCR	(SNVS_BASE + 0x38)
+
 #define RGPIO2P0_RBASE	((AIPS0_BASE + (AIPS0_SLOT_SIZE * RGPIO2P0_AIPS0_SLOT)))
 #define RGPIO2P1_RBASE	((AIPS2_BASE + (AIPS2_SLOT_SIZE * RGPIO2P1_AIPS2_SLOT)))
 
@@ -939,6 +943,9 @@
 #define MMDC_MPWRDQBY3DL_WR_DQ25_DEL_MASK	((0x3f  << MMDC_MPWRDQBY3DL_WR_DQ25_DEL))
 #define MMDC_MPWRDQBY3DL_WR_DQ24_DEL_MASK	((0x3f  << MMDC_MPWRDQBY3DL_WR_DQ24_DEL))
 
+#define SNVS_LPCR_DPEN				(0x20)
+#define SNVS_LPCR_SRTC_ENV			(0x1)
+
 #if !(defined(__KERNEL_STRICT_NAMES) || defined(__ASSEMBLY__))
 
 #include <asm/types.h>
diff --git a/arch/arm/mach-imx/mx7ulp/soc.c b/arch/arm/mach-imx/mx7ulp/soc.c
index 6015c11869..7119ee4a07 100644
--- a/arch/arm/mach-imx/mx7ulp/soc.c
+++ b/arch/arm/mach-imx/mx7ulp/soc.c
@@ -106,6 +106,10 @@ void s_init(void)
 	/* clock configuration. */
 	clock_init();
 
+	if (soc_rev() < CHIP_REV_2_0) {
+		/* enable dumb pmic */
+		writel((readl(SNVS_LP_LPCR) | SNVS_LPCR_DPEN), SNVS_LP_LPCR);
+	}
 	return;
 }
 
-- 
2.16.4

[U-Boot] [PATCH RESEND 04/14] i.MX7ULP: Correct the clock index

[Peng Fan]

From: Bai Ping <ping.bai@nxp.com>

On i.MX7ULP, value zero is reserved in SCG1 RCCR register,
so the val should be decreased by 1 to get the correct clock
source index.

Signed-off-by: Bai Ping <ping.bai@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm/mach-imx/mx7ulp/scg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-imx/mx7ulp/scg.c b/arch/arm/mach-imx/mx7ulp/scg.c
index b4f2ea875a..85d726fe30 100644
--- a/arch/arm/mach-imx/mx7ulp/scg.c
+++ b/arch/arm/mach-imx/mx7ulp/scg.c
@@ -440,7 +440,7 @@ static u32 scg_sys_get_rate(enum scg_clk clk)
 	case SCG_SCS_SLOW_IRC:
 	case SCG_SCS_FAST_IRC:
 	case SCG_SCS_RTC_OSC:
-		rate = scg_src_get_rate(scg_scs_array[val]);
+		rate = scg_src_get_rate(scg_scs_array[val - 1]);
 		break;
 	case 5:
 		rate = scg_apll_get_rate();
-- 
2.16.4

[U-Boot] [PATCH RESEND 05/14] i.MX7ULP: Fix PCC register bits mask and offset issue

[Peng Fan]

From: Ye Li <ye.li@nxp.com>

The offset for FRAC and the mask for PCD are not correct.
If we set FRAC, we can't get the right frequency. Fix them
to correct value.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm/include/asm/arch-mx7ulp/pcc.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/include/asm/arch-mx7ulp/pcc.h b/arch/arm/include/asm/arch-mx7ulp/pcc.h
index 67a0936150..dee3cfcdc0 100644
--- a/arch/arm/include/asm/arch-mx7ulp/pcc.h
+++ b/arch/arm/include/asm/arch-mx7ulp/pcc.h
@@ -289,10 +289,10 @@ enum pcc3_entry {
 #define PCC_INUSE_MASK		(0x1 << PCC_INUSE_OFFSET)
 #define PCC_PCS_OFFSET	24
 #define PCC_PCS_MASK	(0x7 << PCC_PCS_OFFSET)
-#define PCC_FRAC_OFFSET	4
+#define PCC_FRAC_OFFSET	3
 #define PCC_FRAC_MASK	(0x1 << PCC_FRAC_OFFSET)
 #define PCC_PCD_OFFSET	0
-#define PCC_PCD_MASK	(0xf << PCC_PCD_OFFSET)
+#define PCC_PCD_MASK	(0x7 << PCC_PCD_OFFSET)
 
 
 enum pcc_clksrc_type {
-- 
2.16.4

[U-Boot] [PATCH RESEND 06/14] i.MX7ULP: Add CONFIG_MX7ULP to kconfig

[Peng Fan]

From: Ye Li <ye.li@nxp.com>

Since many drivers need this CONFIG_MX7ULP to distiguish the settings
for i.MX7ULP only. Add this entry to cpu's kconfig.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm/mach-imx/mx7ulp/Kconfig | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-imx/mx7ulp/Kconfig b/arch/arm/mach-imx/mx7ulp/Kconfig
index d4b0299dbd..ed5f0aeb2d 100644
--- a/arch/arm/mach-imx/mx7ulp/Kconfig
+++ b/arch/arm/mach-imx/mx7ulp/Kconfig
@@ -3,12 +3,16 @@ if ARCH_MX7ULP
 config SYS_SOC
 	default "mx7ulp"
 
+config MX7ULP
+	bool
+
 choice
 	prompt "MX7ULP board select"
 	optional
 
 config TARGET_MX7ULP_EVK
-        bool "Support mx7ulp EVK board"
+	bool "Support mx7ulp EVK board"
+	select MX7ULP
 	select SYS_ARCH_TIMER
 
 endchoice
-- 
2.16.4

[U-Boot] [PATCH RESEND 07/14] i.MX7ULP: Fix wrong i2c configuration name

[Peng Fan]

From: Ye Li <ye.li@nxp.com>

Wrong I2c driver configuration name is used in codes, so I2c driver is
not built. Correct it.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm/include/asm/arch-mx7ulp/clock.h | 2 +-
 arch/arm/mach-imx/mx7ulp/clock.c         | 2 +-
 configs/mx7ulp_evk_defconfig             | 1 +
 configs/mx7ulp_evk_plugin_defconfig      | 1 +
 4 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/include/asm/arch-mx7ulp/clock.h b/arch/arm/include/asm/arch-mx7ulp/clock.h
index bf69785831..eb02a20fdc 100644
--- a/arch/arm/include/asm/arch-mx7ulp/clock.h
+++ b/arch/arm/include/asm/arch-mx7ulp/clock.h
@@ -26,7 +26,7 @@ enum mxc_clock {
 
 u32 mxc_get_clock(enum mxc_clock clk);
 u32 get_lpuart_clk(void);
-#ifdef CONFIG_SYS_LPI2C_IMX
+#ifdef CONFIG_SYS_I2C_IMX_LPI2C
 int enable_i2c_clk(unsigned char enable, unsigned i2c_num);
 u32 imx_get_i2cclk(unsigned i2c_num);
 #endif
diff --git a/arch/arm/mach-imx/mx7ulp/clock.c b/arch/arm/mach-imx/mx7ulp/clock.c
index dc317fe810..e333c7815b 100644
--- a/arch/arm/mach-imx/mx7ulp/clock.c
+++ b/arch/arm/mach-imx/mx7ulp/clock.c
@@ -72,7 +72,7 @@ u32 get_lpuart_clk(void)
 	return pcc_clock_get_rate(lpuart_pcc_clks[index - 4]);
 }
 
-#ifdef CONFIG_SYS_LPI2C_IMX
+#ifdef CONFIG_SYS_I2C_IMX_LPI2C
 int enable_i2c_clk(unsigned char enable, unsigned i2c_num)
 {
 	/* Set parent to FIRC DIV2 clock */
diff --git a/configs/mx7ulp_evk_defconfig b/configs/mx7ulp_evk_defconfig
index b5ad025ab4..3c5d75de0b 100644
--- a/configs/mx7ulp_evk_defconfig
+++ b/configs/mx7ulp_evk_defconfig
@@ -21,6 +21,7 @@ CONFIG_DM_GPIO=y
 CONFIG_IMX_RGPIO2P=y
 # CONFIG_MXC_GPIO is not set
 CONFIG_DM_I2C=y
+CONFIG_SYS_I2C_IMX_LPI2C=y
 CONFIG_DM_MMC=y
 CONFIG_SUPPORT_EMMC_BOOT=y
 CONFIG_FSL_ESDHC_IMX=y
diff --git a/configs/mx7ulp_evk_plugin_defconfig b/configs/mx7ulp_evk_plugin_defconfig
index ae8d4b4d39..28b75cca5f 100644
--- a/configs/mx7ulp_evk_plugin_defconfig
+++ b/configs/mx7ulp_evk_plugin_defconfig
@@ -20,6 +20,7 @@ CONFIG_IMX_RGPIO2P=y
 # CONFIG_MXC_GPIO is not set
 CONFIG_DM_I2C=y
 CONFIG_DM_MMC=y
+CONFIG_SYS_I2C_IMX_LPI2C=y
 CONFIG_SUPPORT_EMMC_BOOT=y
 CONFIG_FSL_ESDHC_IMX=y
 CONFIG_PINCTRL=y
-- 
2.16.4

[U-Boot] [PATCH RESEND 08/14] misc: Kconfig: make i.MX7ULP could use MXC_OCOTP

[Peng Fan]

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 drivers/misc/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index cb8b5c04db..9968cc4f1f 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -200,7 +200,7 @@ config JZ4780_EFUSE
 
 config MXC_OCOTP
 	bool "Enable MXC OCOTP Driver"
-	depends on ARCH_IMX8M || ARCH_MX6 || ARCH_MX7 || ARCH_VF610
+	depends on ARCH_IMX8M || ARCH_MX6 || ARCH_MX7 || ARCH_MX7ULP || ARCH_VF610
 	default y
 	help
 	  If you say Y here, you will get support for the One Time
-- 
2.16.4

[U-Boot] [PATCH RESEND 09/14] i.MX7ULP: evk: Enable fuse comamnd

[Peng Fan]

Enable fuse command

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 configs/mx7ulp_evk_defconfig        | 1 +
 configs/mx7ulp_evk_plugin_defconfig | 1 +
 2 files changed, 2 insertions(+)

diff --git a/configs/mx7ulp_evk_defconfig b/configs/mx7ulp_evk_defconfig
index 3c5d75de0b..0f39d878e7 100644
--- a/configs/mx7ulp_evk_defconfig
+++ b/configs/mx7ulp_evk_defconfig
@@ -9,6 +9,7 @@ CONFIG_BOUNCE_BUFFER=y
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_BOOTZ=y
 CONFIG_CMD_MEMTEST=y
+CONFIG_CMD_FUSE=y
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
diff --git a/configs/mx7ulp_evk_plugin_defconfig b/configs/mx7ulp_evk_plugin_defconfig
index 28b75cca5f..88c75c4763 100644
--- a/configs/mx7ulp_evk_plugin_defconfig
+++ b/configs/mx7ulp_evk_plugin_defconfig
@@ -7,6 +7,7 @@ CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx7ulp_evk/imximage.cfg"
 CONFIG_BOUNCE_BUFFER=y
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_MEMTEST=y
+CONFIG_CMD_FUSE=y
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
-- 
2.16.4

[U-Boot] [PATCH RESEND 10/14] i.MX7ULP: Fix SPLL/APLL clock rate calculation issue

[Peng Fan]

From: Ye Li <ye.li@nxp.com>

The num/denom is a float value, but in the calculation it is convert
to integer 0, and cause the result wrong.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm/mach-imx/mx7ulp/scg.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-imx/mx7ulp/scg.c b/arch/arm/mach-imx/mx7ulp/scg.c
index 85d726fe30..a28a2bc81b 100644
--- a/arch/arm/mach-imx/mx7ulp/scg.c
+++ b/arch/arm/mach-imx/mx7ulp/scg.c
@@ -503,7 +503,10 @@ u32 decode_pll(enum pll_clocks pll)
 
 		infreq = infreq / pre_div;
 
-		return infreq * mult + infreq * num / denom;
+		if (denom)
+			return infreq * mult + infreq * num / denom;
+		else
+			return infreq * mult;
 
 	case PLL_A7_APLL:
 		reg = readl(&scg1_regs->apllcsr);
@@ -532,7 +535,10 @@ u32 decode_pll(enum pll_clocks pll)
 
 		infreq = infreq / pre_div;
 
-		return infreq * mult + infreq * num / denom;
+		if (denom)
+			return infreq * mult + infreq * num / denom;
+		else
+			return infreq * mult;
 
 	case PLL_USB:
 		reg = readl(&scg1_regs->upllcsr);
-- 
2.16.4

[U-Boot] [PATCH RESEND 11/14] i.MX7ULP: Workaround APLL PFD2 to 345.6Mhz

[Peng Fan]

From: Ye Li <ye.li@nxp.com>

The GPU uses APLL PFD2 as its clock parent (483.84Mhz) with divider
set to 1. This frequecy is out of ULP A0 spec. The MAX rate for GPU
is 350Mhz. So we simply configure the APLL PFD2 to 345.6Mhz (FRAC=28)
to workaround the problem. The correct fix should let GPU handle the
clock rate in kernel.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm/mach-imx/mx7ulp/clock.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-imx/mx7ulp/clock.c b/arch/arm/mach-imx/mx7ulp/clock.c
index e333c7815b..7012157078 100644
--- a/arch/arm/mach-imx/mx7ulp/clock.c
+++ b/arch/arm/mach-imx/mx7ulp/clock.c
@@ -300,9 +300,9 @@ void clock_init(void)
 
 	scg_a7_soscdiv_init();
 
-	/* APLL PFD1 = 270Mhz, PFD2=480Mhz, PFD3=800Mhz */
+	/* APLL PFD1 = 270Mhz, PFD2=345.6Mhz, PFD3=800Mhz */
 	scg_enable_pll_pfd(SCG_APLL_PFD1_CLK, 35);
-	scg_enable_pll_pfd(SCG_APLL_PFD2_CLK, 20);
+	scg_enable_pll_pfd(SCG_APLL_PFD2_CLK, 28);
 	scg_enable_pll_pfd(SCG_APLL_PFD3_CLK, 12);
 
 	init_clk_lpuart();
-- 
2.16.4

[U-Boot] [PATCH RESEND 12/14] i.MX7ULP: Add CPU revision check for B0

[Peng Fan]

Since there is no register for CPU revision, we use ROM version to
check the A0 or B0 chip.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm/mach-imx/mx7ulp/soc.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-imx/mx7ulp/soc.c b/arch/arm/mach-imx/mx7ulp/soc.c
index 7119ee4a07..6c53aa106e 100644
--- a/arch/arm/mach-imx/mx7ulp/soc.c
+++ b/arch/arm/mach-imx/mx7ulp/soc.c
@@ -18,10 +18,13 @@ struct imx_sec_config_fuse_t const imx_sec_config_fuse = {
 };
 #endif
 
+#define ROM_VERSION_ADDR 0x80
 u32 get_cpu_rev(void)
 {
-	/* Temporally hard code the CPU rev to 0x73, rev 1.0. Fix it later */
-	return (MXC_CPU_MX7ULP << 12) | (1 << 4);
+	/* Check the ROM version for cpu revision */
+	u32 rom_version = readl((void __iomem *)ROM_VERSION_ADDR);
+
+	return (MXC_CPU_MX7ULP << 12) | (rom_version & 0xFF);
 }
 
 #ifdef CONFIG_REVISION_TAG
-- 
2.16.4

[U-Boot] [PATCH RESEND 13/14] i.MX7ULP: Set A7 core frequency to 500Mhz for B0 chip

[Peng Fan]

From: Ye Li <ye.li@nxp.com>

The normal target frequency for ULP A7 core is 500Mhz, but now ROM
set the core frequency to 413Mhz. So change it to 500Mhz in u-boot.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm/include/asm/arch-mx7ulp/scg.h |  1 +
 arch/arm/mach-imx/mx7ulp/clock.c       |  2 ++
 arch/arm/mach-imx/mx7ulp/scg.c         | 41 ++++++++++++++++++++++++++++++++++
 3 files changed, 44 insertions(+)

diff --git a/arch/arm/include/asm/arch-mx7ulp/scg.h b/arch/arm/include/asm/arch-mx7ulp/scg.h
index f1fae010da..531d8f3a95 100644
--- a/arch/arm/include/asm/arch-mx7ulp/scg.h
+++ b/arch/arm/include/asm/arch-mx7ulp/scg.h
@@ -337,5 +337,6 @@ void scg_a7_nicclk_init(void);
 void scg_a7_sys_clk_sel(enum scg_sys_src clk);
 void scg_a7_info(void);
 void scg_a7_soscdiv_init(void);
+void scg_a7_init_core_clk(void);
 
 #endif
diff --git a/arch/arm/mach-imx/mx7ulp/clock.c b/arch/arm/mach-imx/mx7ulp/clock.c
index 7012157078..7bf83170eb 100644
--- a/arch/arm/mach-imx/mx7ulp/clock.c
+++ b/arch/arm/mach-imx/mx7ulp/clock.c
@@ -300,6 +300,8 @@ void clock_init(void)
 
 	scg_a7_soscdiv_init();
 
+	scg_a7_init_core_clk();
+
 	/* APLL PFD1 = 270Mhz, PFD2=345.6Mhz, PFD3=800Mhz */
 	scg_enable_pll_pfd(SCG_APLL_PFD1_CLK, 35);
 	scg_enable_pll_pfd(SCG_APLL_PFD2_CLK, 28);
diff --git a/arch/arm/mach-imx/mx7ulp/scg.c b/arch/arm/mach-imx/mx7ulp/scg.c
index a28a2bc81b..0d31352c77 100644
--- a/arch/arm/mach-imx/mx7ulp/scg.c
+++ b/arch/arm/mach-imx/mx7ulp/scg.c
@@ -1091,3 +1091,44 @@ void scg_a7_info(void)
 	debug("SCG RCCR Value: 0x%x\n", readl(&scg1_regs->rccr));
 	debug("SCG Clock Status: 0x%x\n", readl(&scg1_regs->csr));
 }
+
+void scg_a7_init_core_clk(void)
+{
+	u32 val = 0;
+
+	/*
+	 * The normal target frequency for ULP B0 is 500Mhz,
+	 * but ROM set it to 413Mhz, need to change SPLL PFD0 FRAC
+	 */
+	if (soc_rev() >= CHIP_REV_2_0) {
+		/* Switch RCCR SCG to SOSC, firstly check the SOSC is valid */
+		if ((readl(&scg1_regs->sosccsr) & SCG_SOSC_CSR_SOSCVLD_MASK)) {
+			val = readl(&scg1_regs->rccr);
+			val &= (~SCG_CCR_SCS_MASK);
+			val |= ((SCG_SCS_SYS_OSC) << SCG_CCR_SCS_SHIFT);
+			writel(val, &scg1_regs->rccr);
+
+			/* Switch the PLLS to SPLL clk */
+			val = readl(&scg1_regs->spllcfg);
+			val &= ~SCG_PLL_CFG_PLLSEL_MASK;
+			writel(val, &scg1_regs->spllcfg);
+
+			/*
+			 * Re-configure PFD0 to 19,
+			 * A7 SPLL(528MHz) * 18 / 19 = 500MHz
+			 */
+			scg_enable_pll_pfd(SCG_SPLL_PFD0_CLK, 19);
+
+			/* Switch the PLLS to SPLL PFD0 */
+			val = readl(&scg1_regs->spllcfg);
+			val |= SCG_PLL_CFG_PLLSEL_MASK;
+			writel(val, &scg1_regs->spllcfg);
+
+			/* Set RCCR SCG to SPLL clk out */
+			val = readl(&scg1_regs->rccr);
+			val &= (~SCG_CCR_SCS_MASK);
+			val |= ((SCG_SCS_SYS_PLL) << SCG_CCR_SCS_SHIFT);
+			writel(val, &scg1_regs->rccr);
+		}
+	}
+}
-- 
2.16.4

[U-Boot] [PATCH RESEND 14/14] i.MX7ULP: Change clock rate calculation for NIC1 BUS and EXT

[Peng Fan]

From: Ye Li <ye.li@nxp.com>

On i.MX7ULP B0, there is change in NIC clock dividers architecture.
On A0, the NIC1 BUS and EXT dividers were in a chain with NIC1 DIV, but
on B0 they are parallel with NIC1 DIV. So now the dividers are independent.
This patch modifies the scg_nic_get_rate function according to this change.

Signed-off-by: Ye Li <ye.li@nxp.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm/mach-imx/mx7ulp/scg.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-imx/mx7ulp/scg.c b/arch/arm/mach-imx/mx7ulp/scg.c
index 0d31352c77..819c90af6c 100644
--- a/arch/arm/mach-imx/mx7ulp/scg.c
+++ b/arch/arm/mach-imx/mx7ulp/scg.c
@@ -352,7 +352,7 @@ static u32 scg_ddr_get_rate(void)
 
 static u32 scg_nic_get_rate(enum scg_clk clk)
 {
-	u32 reg, val, rate;
+	u32 reg, val, rate, nic0_rate;
 	u32 shift, mask;
 
 	reg = readl(&scg1_regs->niccsr);
@@ -370,6 +370,7 @@ static u32 scg_nic_get_rate(enum scg_clk clk)
 	val = (reg & SCG_NICCSR_NIC0DIV_MASK) >> SCG_NICCSR_NIC0DIV_SHIFT;
 
 	rate = rate / (val + 1);
+	nic0_rate = rate;
 
 	clk_debug("scg_nic_get_rate NIC0 rate %u\n", rate);
 
@@ -411,6 +412,13 @@ static u32 scg_nic_get_rate(enum scg_clk clk)
 		return 0;
 	}
 
+	/*
+	 * On RevB, the nic_bus and nic_ext dividers are parallel
+	 * not chained with nic div
+	 */
+	if (soc_rev() >= CHIP_REV_2_0)
+		rate = nic0_rate;
+
 	val = (reg & mask) >> shift;
 	rate = rate / (val + 1);
 
-- 
2.16.4

[U-Boot] [PATCH RESEND 01/14] imx: i.MX7ULP: add get_boot_device

[Fabio Estevam]

On Sun, Jul 21, 2019 at 10:24 PM Peng Fan <peng.fan@nxp.com> wrote:
>
> Add get_boot_device for i.MX7ULP
>
> Signed-off-by: Peng Fan <peng.fan@nxp.com>

For the entire series:

Tested-by: Fabio Estevam <festevam@gmail.com>

Without this series I cannot boot Linux on imx7ulp-evk. With this
series applied I can.

Thanks

[U-Boot] [PATCH RESEND 01/14] imx: i.MX7ULP: add get_boot_device

[Fabio Estevam]

Hi Stefano,

On Sun, Jul 21, 2019 at 10:43 PM Fabio Estevam <festevam@gmail.com> wrote:
>
> On Sun, Jul 21, 2019 at 10:24 PM Peng Fan <peng.fan@nxp.com> wrote:
> >
> > Add get_boot_device for i.MX7ULP
> >
> > Signed-off-by: Peng Fan <peng.fan@nxp.com>
>
> For the entire series:
>
> Tested-by: Fabio Estevam <festevam@gmail.com>
>
> Without this series I cannot boot Linux on imx7ulp-evk. With this
> series applied I can.

Any comments about this series, please?

I need to upstream one i.MX7ULP based board, which depends on this series.

Thanks

[U-Boot] [PATCH RESEND 01/14] imx: i.MX7ULP: add get_boot_device

[Stefano Babic]

On 02/08/19 19:46, Fabio Estevam wrote:
> Hi Stefano,
> 
> On Sun, Jul 21, 2019 at 10:43 PM Fabio Estevam <festevam@gmail.com> wrote:
>>
>> On Sun, Jul 21, 2019 at 10:24 PM Peng Fan <peng.fan@nxp.com> wrote:
>>>
>>> Add get_boot_device for i.MX7ULP
>>>
>>> Signed-off-by: Peng Fan <peng.fan@nxp.com>
>>
>> For the entire series:
>>
>> Tested-by: Fabio Estevam <festevam@gmail.com>
>>
>> Without this series I cannot boot Linux on imx7ulp-evk. With this
>> series applied I can.
> 
> Any comments about this series, please?
> 
> I need to upstream one i.MX7ULP based board, which depends on this series.

I merge it into -master today.

Thanks,
Stefano


-- 
=====================================================================
DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de
=====================================================================

[U-Boot] [PATCH RESEND 01/14] imx: i.MX7ULP: add get_boot_device

[sbabic at denx.de]

> Add get_boot_device for i.MX7ULP
> Signed-off-by: Peng Fan <peng.fan@nxp.com>
> Tested-by: Fabio Estevam <festevam@gmail.com>

Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

-- 
=====================================================================
DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de
=====================================================================