[PATCH 15/23] ARM: i.MX: Add i.MX7 base architecture support
Sascha Hauer
s.hauer at pengutronix.de
Mon Jan 16 02:51:00 PST 2017
From: Juergen Borleis <jbe at pengutronix.de>
Signed-off-by Juergen Borleis <jbe at pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
Documentation/boards/imx.rst | 1 +
arch/arm/mach-imx/Kconfig | 4 ++
arch/arm/mach-imx/Makefile | 1 +
arch/arm/mach-imx/boot.c | 70 ++++++++++++++++++++++++
arch/arm/mach-imx/cpu_init.c | 5 ++
arch/arm/mach-imx/imx.c | 6 +++
arch/arm/mach-imx/imx7.c | 75 ++++++++++++++++++++++++++
arch/arm/mach-imx/include/mach/debug_ll.h | 3 ++
arch/arm/mach-imx/include/mach/generic.h | 16 ++++++
arch/arm/mach-imx/include/mach/imx7-regs.h | 23 ++++++++
arch/arm/mach-imx/include/mach/imx7.h | 59 ++++++++++++++++++++
arch/arm/mach-imx/include/mach/imx_cpu_types.h | 1 +
common/Kconfig | 8 +++
include/serial/imx-uart.h | 5 ++
scripts/imx/imx.c | 1 +
15 files changed, 278 insertions(+)
create mode 100644 arch/arm/mach-imx/imx7.c
create mode 100644 arch/arm/mach-imx/include/mach/imx7-regs.h
create mode 100644 arch/arm/mach-imx/include/mach/imx7.h
diff --git a/Documentation/boards/imx.rst b/Documentation/boards/imx.rst
index 60cdcf072..b6e65060c 100644
--- a/Documentation/boards/imx.rst
+++ b/Documentation/boards/imx.rst
@@ -20,6 +20,7 @@ The Internal Boot Mode is supported on:
* i.MX51
* i.MX53
* i.MX6
+* i.MX7
With the Internal Boot Mode, the images contain a header which describes
where the binary shall be loaded and started. These headers also contain
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 9dbe31c4b..fd1ecb6bb 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -157,6 +157,10 @@ config ARCH_IMX6UL
bool
select ARCH_IMX6
+config ARCH_IMX7
+ bool
+ select CPU_V7
+
config ARCH_VF610
bool
select ARCH_HAS_L2X0
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index d0fe7abc0..fc5305f05 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_ARCH_IMX53) += imx53.o imx5.o esdctl-v4.o
pbl-$(CONFIG_ARCH_IMX53) += imx53.o imx5.o esdctl-v4.o
obj-$(CONFIG_ARCH_IMX6) += imx6.o usb-imx6.o
lwl-$(CONFIG_ARCH_IMX6) += imx6-mmdc.o
+obj-$(CONFIG_ARCH_IMX7) += imx7.o
obj-$(CONFIG_ARCH_IMX_XLOAD) += xload.o
obj-$(CONFIG_IMX_IIM) += iim.o
obj-$(CONFIG_IMX_OCOTP) += ocotp.o
diff --git a/arch/arm/mach-imx/boot.c b/arch/arm/mach-imx/boot.c
index 489306072..72597f5e2 100644
--- a/arch/arm/mach-imx/boot.c
+++ b/arch/arm/mach-imx/boot.c
@@ -25,6 +25,7 @@
#include <mach/imx51-regs.h>
#include <mach/imx53-regs.h>
#include <mach/imx6-regs.h>
+#include <mach/imx7-regs.h>
/* [CTRL][TYPE] */
static const enum bootsource locations[4][4] = {
@@ -346,3 +347,72 @@ void imx6_boot_save_loc(void)
bootsource_set(src);
bootsource_set_instance(instance);
}
+
+#define IMX7_SRC_SBMR1 0x58
+#define IMX7_SRC_SBMR2 0x70
+
+void imx7_get_boot_source(enum bootsource *src, int *instance)
+{
+ void __iomem *src_base = IOMEM(MX7_SRC_BASE_ADDR);
+ uint32_t sbmr1 = readl(src_base + IMX7_SRC_SBMR1);
+ uint32_t sbmr2 = readl(src_base + IMX7_SRC_SBMR2);
+ int boot_mode;
+
+ /* BMOD[1:0] */
+ boot_mode = (sbmr2 >> 24) & 0x3;
+
+ switch (boot_mode) {
+ case 0: /* Fuses, fall through */
+ case 2: /* internal boot */
+ goto internal_boot;
+ case 1: /* Serial Downloader */
+ *src = BOOTSOURCE_SERIAL;
+ break;
+ case 3: /* reserved */
+ break;
+ };
+
+ return;
+
+internal_boot:
+
+ switch ((sbmr1 >> 12) & 0xf) {
+ case 1:
+ case 2:
+ *src = BOOTSOURCE_MMC;
+ *instance = (sbmr1 >> 10 & 0x3);
+ break;
+ case 3:
+ *src = BOOTSOURCE_NAND;
+ break;
+ case 4:
+ *src = BOOTSOURCE_SPI_NOR,
+ *instance = (sbmr1 >> 9 & 0x7);
+ break;
+ case 6:
+ *src = BOOTSOURCE_SPI; /* Really: qspi */
+ break;
+ case 5:
+ *src = BOOTSOURCE_NOR;
+ break;
+ default:
+ break;
+ }
+
+ /* BOOT_CFG1[7:0] */
+ if (sbmr1 & (1 << 7))
+ *src = BOOTSOURCE_NAND;
+
+ return;
+}
+
+void imx7_boot_save_loc(void)
+{
+ enum bootsource src = BOOTSOURCE_UNKNOWN;
+ int instance = BOOTSOURCE_INSTANCE_UNKNOWN;
+
+ imx7_get_boot_source(&src, &instance);
+
+ bootsource_set(src);
+ bootsource_set_instance(instance);
+}
diff --git a/arch/arm/mach-imx/cpu_init.c b/arch/arm/mach-imx/cpu_init.c
index 6971d89d9..2b388cad8 100644
--- a/arch/arm/mach-imx/cpu_init.c
+++ b/arch/arm/mach-imx/cpu_init.c
@@ -34,6 +34,11 @@ void imx6_cpu_lowlevel_init(void)
enable_arm_errata_845369_war();
}
+void imx7_cpu_lowlevel_init(void)
+{
+ arm_cpu_lowlevel_init();
+}
+
void vf610_cpu_lowlevel_init(void)
{
arm_cpu_lowlevel_init();
diff --git a/arch/arm/mach-imx/imx.c b/arch/arm/mach-imx/imx.c
index 952db007d..907340fc5 100644
--- a/arch/arm/mach-imx/imx.c
+++ b/arch/arm/mach-imx/imx.c
@@ -65,6 +65,10 @@ static int imx_soc_from_dt(void)
return IMX_CPU_IMX6;
if (of_machine_is_compatible("fsl,imx6ul"))
return IMX_CPU_IMX6;
+ if (of_machine_is_compatible("fsl,imx7s"))
+ return IMX_CPU_IMX7;
+ if (of_machine_is_compatible("fsl,imx7d"))
+ return IMX_CPU_IMX7;
if (of_machine_is_compatible("fsl,vf610"))
return IMX_CPU_VF610;
@@ -103,6 +107,8 @@ static int imx_init(void)
ret = imx53_init();
else if (cpu_is_mx6())
ret = imx6_init();
+ else if (cpu_is_mx7())
+ ret = imx7_init();
else if (cpu_is_vf610())
ret = 0;
else
diff --git a/arch/arm/mach-imx/imx7.c b/arch/arm/mach-imx/imx7.c
new file mode 100644
index 000000000..fde66d838
--- /dev/null
+++ b/arch/arm/mach-imx/imx7.c
@@ -0,0 +1,75 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <init.h>
+#include <common.h>
+#include <io.h>
+#include <linux/sizes.h>
+#include <mach/imx7.h>
+#include <mach/generic.h>
+#include <mach/revision.h>
+#include <mach/imx7-regs.h>
+
+void imx7_init_lowlevel(void)
+{
+ void __iomem *aips1 = IOMEM(MX7_AIPS1_CONFIG_BASE_ADDR);
+ void __iomem *aips2 = IOMEM(MX7_AIPS2_CONFIG_BASE_ADDR);
+
+ /*
+ * Set all MPROTx to be non-bufferable, trusted for R/W,
+ * not forced to user-mode.
+ */
+ writel(0x77777777, aips1);
+ writel(0x77777777, aips1 + 0x4);
+ writel(0, aips1 + 0x40);
+ writel(0, aips1 + 0x44);
+ writel(0, aips1 + 0x48);
+ writel(0, aips1 + 0x4c);
+ writel(0, aips1 + 0x50);
+
+ writel(0x77777777, aips2);
+ writel(0x77777777, aips2 + 0x4);
+ writel(0, aips2 + 0x40);
+ writel(0, aips2 + 0x44);
+ writel(0, aips2 + 0x48);
+ writel(0, aips2 + 0x4c);
+ writel(0, aips2 + 0x50);
+}
+
+int imx7_init(void)
+{
+ const char *cputypestr;
+ u32 imx7_silicon_revision;
+
+ imx7_init_lowlevel();
+
+ imx7_boot_save_loc();
+
+ imx7_silicon_revision = imx7_cpu_revision();
+
+ switch (imx7_cpu_type()) {
+ case IMX7_CPUTYPE_IMX7D:
+ cputypestr = "i.MX7d";
+ break;
+ case IMX7_CPUTYPE_IMX7S:
+ cputypestr = "i.MX7s";
+ break;
+ default:
+ cputypestr = "unknown i.MX7";
+ break;
+ }
+
+ imx_set_silicon_revision(cputypestr, imx7_silicon_revision);
+
+ return 0;
+}
diff --git a/arch/arm/mach-imx/include/mach/debug_ll.h b/arch/arm/mach-imx/include/mach/debug_ll.h
index a132f3c16..39d710f7d 100644
--- a/arch/arm/mach-imx/include/mach/debug_ll.h
+++ b/arch/arm/mach-imx/include/mach/debug_ll.h
@@ -14,6 +14,7 @@
#include <mach/imx51-regs.h>
#include <mach/imx53-regs.h>
#include <mach/imx6-regs.h>
+#include <mach/imx7-regs.h>
#include <mach/vf610-regs.h>
#include <serial/imx-uart.h>
@@ -44,6 +45,8 @@
#define IMX_DEBUG_SOC MX53
#elif defined CONFIG_DEBUG_IMX6Q_UART
#define IMX_DEBUG_SOC MX6
+#elif defined CONFIG_DEBUG_IMX7D_UART
+#define IMX_DEBUG_SOC MX7
#elif defined CONFIG_DEBUG_VF610_UART
#define IMX_DEBUG_SOC VF610
#else
diff --git a/arch/arm/mach-imx/include/mach/generic.h b/arch/arm/mach-imx/include/mach/generic.h
index 34194509e..73be9ceb5 100644
--- a/arch/arm/mach-imx/include/mach/generic.h
+++ b/arch/arm/mach-imx/include/mach/generic.h
@@ -14,12 +14,14 @@ void imx27_boot_save_loc(void);
void imx51_boot_save_loc(void);
void imx53_boot_save_loc(void);
void imx6_boot_save_loc(void);
+void imx7_boot_save_loc(void);
void imx25_get_boot_source(enum bootsource *src, int *instance);
void imx35_get_boot_source(enum bootsource *src, int *instance);
void imx51_get_boot_source(enum bootsource *src, int *instance);
void imx53_get_boot_source(enum bootsource *src, int *instance);
void imx6_get_boot_source(enum bootsource *src, int *instance);
+void imx7_get_boot_source(enum bootsource *src, int *instance);
int imx1_init(void);
int imx21_init(void);
@@ -31,6 +33,7 @@ int imx50_init(void);
int imx51_init(void);
int imx53_init(void);
int imx6_init(void);
+int imx7_init(void);
int imx1_devices_init(void);
int imx21_devices_init(void);
@@ -45,6 +48,7 @@ int imx6_devices_init(void);
void imx5_cpu_lowlevel_init(void);
void imx6_cpu_lowlevel_init(void);
+void imx7_cpu_lowlevel_init(void);
void vf610_cpu_lowlevel_init(void);
/* There's a off-by-one betweem the gpio bank number and the gpiochip */
@@ -174,6 +178,18 @@ extern unsigned int __imx_cpu_type;
# define cpu_is_mx6() (0)
#endif
+#ifdef CONFIG_ARCH_IMX7
+# ifdef imx_cpu_type
+# undef imx_cpu_type
+# define imx_cpu_type __imx_cpu_type
+# else
+# define imx_cpu_type IMX_CPU_IMX7
+# endif
+# define cpu_is_mx7() (imx_cpu_type == IMX_CPU_IMX7)
+#else
+# define cpu_is_mx7() (0)
+#endif
+
#ifdef CONFIG_ARCH_VF610
# ifdef imx_cpu_type
# undef imx_cpu_type
diff --git a/arch/arm/mach-imx/include/mach/imx7-regs.h b/arch/arm/mach-imx/include/mach/imx7-regs.h
new file mode 100644
index 000000000..7808a2a0a
--- /dev/null
+++ b/arch/arm/mach-imx/include/mach/imx7-regs.h
@@ -0,0 +1,23 @@
+#ifndef __MACH_IMX7_REGS_H
+#define __MACH_IMX7_REGS_H
+
+#define MX7_AIPS1_BASE_ADDR 0x30000000
+#define MX7_AIPS2_BASE_ADDR 0x30400000
+#define MX7_AIPS3_BASE_ADDR 0x30800000
+
+#define MX7_AIPS1_CONFIG_BASE_ADDR 0x301f0000
+#define MX7_IOMUX_BASE_ADDR 0x30330000
+#define MX7_OCOTP_BASE_ADDR 0x30350000
+#define MX7_ANATOP_BASE_ADDR 0x30360000
+#define MX7_CCM_BASE_ADDR 0x30380000
+#define MX7_SRC_BASE_ADDR 0x30390000
+#define MX7_UART1_BASE_ADDR 0x30860000
+#define MX7_UART2_BASE_ADDR 0x30870000
+#define MX7_UART3_BASE_ADDR 0x30880000
+#define MX7_UART4_BASE_ADDR 0x30a60000
+#define MX7_UART5_BASE_ADDR 0x30a70000
+#define MX7_UART6_BASE_ADDR 0x30a80000
+#define MX7_UART7_BASE_ADDR 0x30a90000
+#define MX7_AIPS2_CONFIG_BASE_ADDR 0x305f0000
+
+#endif /* __MACH_IMX7_REGS_H */
diff --git a/arch/arm/mach-imx/include/mach/imx7.h b/arch/arm/mach-imx/include/mach/imx7.h
new file mode 100644
index 000000000..851893546
--- /dev/null
+++ b/arch/arm/mach-imx/include/mach/imx7.h
@@ -0,0 +1,59 @@
+#ifndef __MACH_IMX7_H
+#define __MACH_IMX7_H
+
+#include <io.h>
+#include <mach/generic.h>
+#include <mach/imx7-regs.h>
+#include <mach/revision.h>
+
+void imx7_init_lowlevel(void);
+
+#define ANADIG_DIGPROG_IMX7 0x800
+
+#define IMX7_CPUTYPE_IMX7S 0x71
+#define IMX7_CPUTYPE_IMX7D 0x72
+
+static inline int __imx7_cpu_type(void)
+{
+ void __iomem *ocotp = IOMEM(MX7_OCOTP_BASE_ADDR);
+
+ if (readl(ocotp + 0x450) & 1)
+ return IMX7_CPUTYPE_IMX7S;
+ else
+ return IMX7_CPUTYPE_IMX7D;
+}
+
+static inline int imx7_cpu_type(void)
+{
+ if (!cpu_is_mx7())
+ return 0;
+
+ return __imx7_cpu_type();
+}
+
+static inline int imx7_cpu_revision(void)
+{
+ if (!cpu_is_mx7())
+ return IMX_CHIP_REV_UNKNOWN;
+
+ /* register value has the format of the IMX_CHIP_REV_* macros */
+ return readl(MX7_ANATOP_BASE_ADDR + ANADIG_DIGPROG_IMX7) & 0xff;
+}
+
+#define DEFINE_MX7_CPU_TYPE(str, type) \
+ static inline int cpu_mx7_is_##str(void) \
+ { \
+ return __imx7_cpu_type() == type; \
+ } \
+ \
+ static inline int cpu_is_##str(void) \
+ { \
+ if (!cpu_is_mx7()) \
+ return 0; \
+ return cpu_mx7_is_##str(); \
+ }
+
+DEFINE_MX7_CPU_TYPE(mx7s, IMX7_CPUTYPE_IMX7S);
+DEFINE_MX7_CPU_TYPE(mx7d, IMX7_CPUTYPE_IMX7D);
+
+#endif /* __MACH_IMX7_H */
\ No newline at end of file
diff --git a/arch/arm/mach-imx/include/mach/imx_cpu_types.h b/arch/arm/mach-imx/include/mach/imx_cpu_types.h
index 50be0b6b5..f95ef6f13 100644
--- a/arch/arm/mach-imx/include/mach/imx_cpu_types.h
+++ b/arch/arm/mach-imx/include/mach/imx_cpu_types.h
@@ -11,6 +11,7 @@
#define IMX_CPU_IMX51 51
#define IMX_CPU_IMX53 53
#define IMX_CPU_IMX6 6
+#define IMX_CPU_IMX7 7
#define IMX_CPU_VF610 610
#endif /* __MACH_IMX_CPU_TYPES_H */
diff --git a/common/Kconfig b/common/Kconfig
index 462c104fd..350e3d49d 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -1072,6 +1072,13 @@ config DEBUG_IMX6Q_UART
Say Y here if you want kernel low-level debugging support
on i.MX6Q.
+config DEBUG_IMX7D_UART
+ bool "i.MX7D Debug UART"
+ depends on ARCH_IMX7
+ help
+ Say Y here if you want barebox low-level debugging support
+ on i.MX7D.
+
config DEBUG_VF610_UART
bool "VF610 Debug UART"
depends on ARCH_VF610
@@ -1120,6 +1127,7 @@ config DEBUG_IMX_UART_PORT
DEBUG_IMX53_UART || \
DEBUG_IMX6Q_UART || \
DEBUG_IMX6SL_UART || \
+ DEBUG_IMX7D_UART || \
DEBUG_VF610_UART
default 1
depends on ARCH_IMX
diff --git a/include/serial/imx-uart.h b/include/serial/imx-uart.h
index b40044ea4..9cab32f35 100644
--- a/include/serial/imx-uart.h
+++ b/include/serial/imx-uart.h
@@ -175,6 +175,11 @@ static inline void imx6_uart_setup(void __iomem *uartbase)
imx_uart_setup(uartbase, 80000000);
}
+static inline void imx7_uart_setup(void __iomem *uartbase)
+{
+ imx_uart_setup(uartbase, 24000000);
+}
+
static inline void imx_uart_putc(void *base, int c)
{
if (!(readl(base + UCR1) & UCR1_UARTEN))
diff --git a/scripts/imx/imx.c b/scripts/imx/imx.c
index bf3a42fb2..809d8a7f7 100644
--- a/scripts/imx/imx.c
+++ b/scripts/imx/imx.c
@@ -231,6 +231,7 @@ static struct soc_type socs[] = {
{ .name = "imx51", .header_version = 1, .cpu_type = IMX_CPU_IMX51 },
{ .name = "imx53", .header_version = 2, .cpu_type = IMX_CPU_IMX53 },
{ .name = "imx6", .header_version = 2, .cpu_type = IMX_CPU_IMX6 },
+ { .name = "imx7", .header_version = 2, .cpu_type = IMX_CPU_IMX7 },
{ .name = "vf610", .header_version = 2, .cpu_type = IMX_CPU_VF610 },
};
--
2.11.0
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