Hi Angelo,
On 13/10/17 08:42, Angelo Dureghello wrote:
> Add support for Sysam stmark2 board, an open hardware embedded
> Linux board, see http://sysam.it/cff_stmark2.html for any info.
>
> Signed-off-by: Angelo Dureghello <[email protected]>
> ---
> arch/m68k/Kconfig.machine | 6 ++
> arch/m68k/coldfire/Makefile | 3 +-
> arch/m68k/coldfire/stmark2.c | 120
> ++++++++++++++++++++++++++++++++++++
> arch/m68k/configs/stmark2_defconfig | 92 +++++++++++++++++++++++++++
> 4 files changed, 220 insertions(+), 1 deletion(-)
> create mode 100644 arch/m68k/coldfire/stmark2.c
> create mode 100644 arch/m68k/configs/stmark2_defconfig
>
> diff --git a/arch/m68k/Kconfig.machine b/arch/m68k/Kconfig.machine
> index 9225b4ad9aeb..00698404b97f 100644
> --- a/arch/m68k/Kconfig.machine
> +++ b/arch/m68k/Kconfig.machine
> @@ -265,6 +265,12 @@ config AMCORE
> help
> Support for the Sysam AMCORE open-hardware generic board.
>
> +config STMARK2
> + bool "Sysam stmark2 board support"
> + depends on M5441x
> + help
> + Support for the Sysam stmark2 open-hardware generic board.
> +
> config FIREBEE
> bool "FireBee board support"
> depends on M547x
> diff --git a/arch/m68k/coldfire/Makefile b/arch/m68k/coldfire/Makefile
> index 4aa2c57afc35..e45baeaadac8 100644
> --- a/arch/m68k/coldfire/Makefile
> +++ b/arch/m68k/coldfire/Makefile
> @@ -34,7 +34,8 @@ obj-$(CONFIG_NETtel) += nettel.o
> obj-$(CONFIG_CLEOPATRA) += nettel.o
> obj-$(CONFIG_FIREBEE) += firebee.o
> obj-$(CONFIG_MCF8390) += mcf8390.o
> -obj-$(CONFIG_AMCORE) += amcore.o
> +obj-$(CONFIG_AMCORE) += amcore.o
> +obj-$(CONFIG_STMARK2) += stmark2.o
>
> obj-$(CONFIG_PCI) += pci.o
>
> diff --git a/arch/m68k/coldfire/stmark2.c b/arch/m68k/coldfire/stmark2.c
> new file mode 100644
> index 000000000000..8eaf869de8e2
> --- /dev/null
> +++ b/arch/m68k/coldfire/stmark2.c
> @@ -0,0 +1,120 @@
> +/*
> + * stmark2.c -- Support for Sysam AMCORE open board
> + *
> + * (C) Copyright 2017, Angelo Dureghello <[email protected]>
> + *
> + * This file is subject to the terms and conditions of the GNU General Public
> + * License. See the file COPYING in the main directory of this archive
> + * for more details.
> + */
> +
> +#include <linux/platform_device.h>
> +#include <linux/mtd/partitions.h>
> +#include <linux/spi/spi.h>
> +#include <linux/spi/spi-fsl-dspi.h>
> +#include <linux/spi/flash.h>
> +#include <asm/mcfsim.h>
> +
> +/*
> + * Partitioning of parallel NOR flash (39VF3201B)
> + */
> +static struct mtd_partition stmark2_partitions[] = {
> + {
> + .name = "U-Boot (1024K)",
> + .size = 0x100000,
> + .offset = 0x0
> + }, {
> + .name = "Kernel+initramfs (7168K)",
> + .size = 0x700000,
> + .offset = MTDPART_OFS_APPEND
> + }, {
> + .name = "Flash Free Space (8192K)",
> + .size = MTDPART_SIZ_FULL,
> + .offset = MTDPART_OFS_APPEND
> + }
> +};
> +
> +static struct flash_platform_data stmark2_spi_flash_data = {
> + .name = "is25lp128",
> + .parts = stmark2_partitions,
> + .nr_parts = ARRAY_SIZE(stmark2_partitions),
> + .type = "is25lp128",
> +};
> +
> +static struct spi_board_info stmark2_board_info[] __initdata = {
^^^^^^^^^^
Should some of the other structures in this code be __initdata too?
Regards
Greg
> + {
> + .modalias = "m25p80",
> + .max_speed_hz = 5000000,
> + .bus_num = 0,
> + .chip_select = 1,
> + .platform_data = &stmark2_spi_flash_data,
> + .mode = SPI_MODE_3,
> + }
> +};
> +
> +/* SPI controller data, SPI (0) */
> +static struct fsl_dspi_platform_data dspi_spi0_info = {
> + .cs_num = 4,
> + .bus_num = 0,
> + .sck_cs_delay = 100,
> + .cs_sck_delay = 100,
> +};
> +
> +static struct resource dspi_spi0_resource[] = {
> + [0] = {
> + .start = MCFDSPI_BASE0,
> + .end = MCFDSPI_BASE0 + 0xFF,
> + .flags = IORESOURCE_MEM,
> + },
> + [1] = {
> + .start = 12,
> + .end = 13,
> + .flags = IORESOURCE_DMA,
> + },
> + [2] = {
> + .start = MCF_IRQ_DSPI0,
> + .end = MCF_IRQ_DSPI0,
> + .flags = IORESOURCE_IRQ,
> + },
> +};
> +
> +/* SPI controller, id = bus number */
> +static struct platform_device dspi_spi0_device = {
> + .name = "fsl-dspi",
> + .id = 0,
> + .num_resources = ARRAY_SIZE(dspi_spi0_resource),
> + .resource = dspi_spi0_resource,
> + .dev = {
> + .platform_data = &dspi_spi0_info,
> + },
> +};
> +
> +static struct platform_device *stmark2_devices[] __initdata = {
> + &dspi_spi0_device,
> +};
> +
> +/*
> + * Note: proper pin-mux setup is mandatory for proper SPI functionality.
> + */
> +static int __init init_stmark2(void)
> +{
> + /* DSPI0, all pins as DSPI, and using CS1 */
> + __raw_writeb(0x80, MCFGPIO_PAR_DSPIOWL);
> + __raw_writeb(0xfc, MCFGPIO_PAR_DSPIOWH);
> +
> + /* Board gpio setup */
> + __raw_writeb(0x00, MCFGPIO_PAR_BE);
> + __raw_writeb(0x00, MCFGPIO_PAR_FBCTL);
> + __raw_writeb(0x00, MCFGPIO_PAR_CS);
> + __raw_writeb(0x00, MCFGPIO_PAR_CANI2C);
> +
> + platform_add_devices(stmark2_devices, ARRAY_SIZE(stmark2_devices));
> +
> + spi_register_board_info(stmark2_board_info,
> + ARRAY_SIZE(stmark2_board_info));
> +
> + return 0;
> +}
> +
> +late_initcall(init_stmark2);
> +
> diff --git a/arch/m68k/configs/stmark2_defconfig
> b/arch/m68k/configs/stmark2_defconfig
> new file mode 100644
> index 000000000000..55e55dbc2fb6
> --- /dev/null
> +++ b/arch/m68k/configs/stmark2_defconfig
> @@ -0,0 +1,92 @@
> +CONFIG_LOCALVERSION="stmark2-001"
> +CONFIG_DEFAULT_HOSTNAME="stmark2"
> +CONFIG_SYSVIPC=y
> +# CONFIG_FHANDLE is not set
> +CONFIG_LOG_BUF_SHIFT=14
> +CONFIG_NAMESPACES=y
> +CONFIG_BLK_DEV_INITRD=y
> +CONFIG_INITRAMFS_SOURCE="../uClinux-dist/romfs"
> +# CONFIG_RD_BZIP2 is not set
> +# CONFIG_RD_LZMA is not set
> +# CONFIG_RD_XZ is not set
> +# CONFIG_RD_LZO is not set
> +# CONFIG_RD_LZ4 is not set
> +CONFIG_CC_OPTIMIZE_FOR_SIZE=y
> +# CONFIG_AIO is not set
> +# CONFIG_ADVISE_SYSCALLS is not set
> +# CONFIG_MEMBARRIER is not set
> +CONFIG_EMBEDDED=y
> +# CONFIG_VM_EVENT_COUNTERS is not set
> +# CONFIG_COMPAT_BRK is not set
> +# CONFIG_LBDAF is not set
> +# CONFIG_BLK_DEV_BSG is not set
> +CONFIG_BLK_CMDLINE_PARSER=y
> +# CONFIG_MMU is not set
> +CONFIG_M5441x=y
> +CONFIG_CLOCK_FREQ=240000000
> +CONFIG_STMARK2=y
> +CONFIG_RAMBASE=0x40000000
> +CONFIG_RAMSIZE=0x8000000
> +CONFIG_VECTORBASE=0x40000000
> +CONFIG_KERNELBASE=0x40001000
> +CONFIG_BINFMT_FLAT=y
> +CONFIG_BINFMT_MISC=y
> +# CONFIG_UEVENT_HELPER is not set
> +CONFIG_DEVTMPFS=y
> +CONFIG_DEVTMPFS_MOUNT=y
> +CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
> +# CONFIG_ALLOW_DEV_COREDUMP is not set
> +CONFIG_MTD=y
> +CONFIG_MTD_CMDLINE_PARTS=y
> +CONFIG_MTD_BLOCK=y
> +CONFIG_MTD_CFI=y
> +CONFIG_MTD_JEDECPROBE=y
> +CONFIG_MTD_CFI_ADV_OPTIONS=y
> +CONFIG_MTD_CFI_LE_BYTE_SWAP=y
> +CONFIG_MTD_CFI_GEOMETRY=y
> +# CONFIG_MTD_CFI_I2 is not set
> +CONFIG_MTD_CFI_AMDSTD=y
> +CONFIG_MTD_CFI_STAA=y
> +CONFIG_MTD_ROM=y
> +CONFIG_MTD_COMPLEX_MAPPINGS=y
> +CONFIG_MTD_PLATRAM=y
> +CONFIG_MTD_M25P80=y
> +CONFIG_MTD_SPI_NOR=y
> +# CONFIG_INPUT_KEYBOARD is not set
> +# CONFIG_INPUT_MOUSE is not set
> +CONFIG_SERIO_LIBPS2=y
> +# CONFIG_UNIX98_PTYS is not set
> +# CONFIG_DEVMEM is not set
> +CONFIG_SERIAL_MCF=y
> +CONFIG_SERIAL_MCF_BAUDRATE=115200
> +CONFIG_SERIAL_MCF_CONSOLE=y
> +# CONFIG_HW_RANDOM is not set
> +CONFIG_SPI=y
> +CONFIG_SPI_DEBUG=y
> +CONFIG_SPI_FSL_DSPI=y
> +CONFIG_DEBUG_GPIO=y
> +CONFIG_GPIO_SYSFS=y
> +CONFIG_GPIO_GENERIC_PLATFORM=y
> +# CONFIG_HWMON is not set
> +# CONFIG_RC_CORE is not set
> +# CONFIG_HID is not set
> +# CONFIG_USB_SUPPORT is not set
> +# CONFIG_FILE_LOCKING is not set
> +# CONFIG_DNOTIFY is not set
> +# CONFIG_INOTIFY_USER is not set
> +CONFIG_FSCACHE=y
> +# CONFIG_PROC_SYSCTL is not set
> +CONFIG_PRINTK_TIME=y
> +# CONFIG_ENABLE_WARN_DEPRECATED is not set
> +# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
> +CONFIG_SLUB_DEBUG_ON=y
> +CONFIG_PANIC_ON_OOPS=y
> +# CONFIG_SCHED_DEBUG is not set
> +# CONFIG_DEBUG_BUGVERBOSE is not set
> +CONFIG_BOOTPARAM=y
> +CONFIG_BOOTPARAM_STRING="console=ttyS0,115200 root=/dev/ram0 rw
> rootfstype=ramfs rdinit=/bin/init devtmpfs.mount=1"
> +CONFIG_CRYPTO=y
> +# CONFIG_CRYPTO_ECHAINIV is not set
> +CONFIG_CRYPTO_ANSI_CPRNG=y
> +# CONFIG_CRYPTO_HW is not set
> +CONFIG_CRC16=y
>
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