On Fri, Apr 22, 2022 at 11:09:10AM +0300, Alexander Shiyan wrote:
> The MYD-AM335X Development Board designed by MYIR is a high-performance
> ARM Evaluation Module (EVM) using the MYC-AM335X CPU module as the core
> controller board. It is based on up to 1GHz Texas Instruments (TI)
> Sitara AM335x family of ARM Cortex-A8 Microprocessors (MPUs) that deliver
> high DMIPs at a low cost while also delivering optional 3D graphics
> acceleration and key peripherals.
>
> Signed-off-by: Alexander Shiyan <eagle.alexander923@xxxxxxxxx>
> ---
> arch/arm/boards/Makefile | 1 +
> arch/arm/boards/myirtech-x335x/Makefile | 3 +
> arch/arm/boards/myirtech-x335x/board.c | 44 +++++++
> .../defaultenv-myirtech-x335x/boot/nand | 4 +
> .../defaultenv-myirtech-x335x/nv/boot.default | 1 +
> arch/arm/boards/myirtech-x335x/lowlevel.c | 115 ++++++++++++++++++
> arch/arm/configs/am335x_mlo_defconfig | 1 +
> arch/arm/configs/omap_defconfig | 3 +-
> arch/arm/dts/Makefile | 1 +
> arch/arm/dts/am335x-myirtech-myd.dts | 41 +++++++
> arch/arm/mach-omap/Kconfig | 6 +
> .../arm/mach-omap/include/mach/am33xx-clock.h | 1 +
> .../mach-omap/include/mach/am33xx-silicon.h | 2 +
> images/Makefile.am33xx | 8 ++
> 14 files changed, 230 insertions(+), 1 deletion(-)
> create mode 100644 arch/arm/boards/myirtech-x335x/Makefile
> create mode 100644 arch/arm/boards/myirtech-x335x/board.c
> create mode 100644 arch/arm/boards/myirtech-x335x/defaultenv-myirtech-x335x/boot/nand
> create mode 100644 arch/arm/boards/myirtech-x335x/defaultenv-myirtech-x335x/nv/boot.default
> create mode 100644 arch/arm/boards/myirtech-x335x/lowlevel.c
> create mode 100644 arch/arm/dts/am335x-myirtech-myd.dts
>
> diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile
> index 75e15cbda4..d303999614 100644
> --- a/arch/arm/boards/Makefile
> +++ b/arch/arm/boards/Makefile
> @@ -77,6 +77,7 @@ obj-$(CONFIG_MACH_MB7707) += module-mb7707/
> obj-$(CONFIG_MACH_MIOA701) += mioa701/
> obj-$(CONFIG_MACH_MX23EVK) += freescale-mx23-evk/
> obj-$(CONFIG_MACH_MX28EVK) += freescale-mx28-evk/
> +obj-$(CONFIG_MACH_MYIRTECH_X335X) += myirtech-x335x/
> obj-$(CONFIG_MACH_NESO) += guf-neso/
> obj-$(CONFIG_MACH_NETGEAR_RN104) += netgear-rn104/
> obj-$(CONFIG_MACH_NETGEAR_RN2120) += netgear-rn2120/
> diff --git a/arch/arm/boards/myirtech-x335x/Makefile b/arch/arm/boards/myirtech-x335x/Makefile
> new file mode 100644
> index 0000000000..05d9fc7bc3
> --- /dev/null
> +++ b/arch/arm/boards/myirtech-x335x/Makefile
> @@ -0,0 +1,3 @@
> +lwl-y += lowlevel.o
> +obj-y += board.o
> +bbenv-$(CONFIG_DEFAULT_ENVIRONMENT) += defaultenv-myirtech-x335x
> diff --git a/arch/arm/boards/myirtech-x335x/board.c b/arch/arm/boards/myirtech-x335x/board.c
> new file mode 100644
> index 0000000000..7fb2af1cec
> --- /dev/null
> +++ b/arch/arm/boards/myirtech-x335x/board.c
> @@ -0,0 +1,44 @@
> +/* SPDX-License-Identifier: GPL-2.0+ */
> +/* SPDX-FileCopyrightText: Alexander Shiyan <shc_work@xxxxxxx> */
> +
> +#include <bootsource.h>
> +#include <common.h>
> +#include <driver.h>
> +#include <envfs.h>
> +#include <init.h>
> +#include <linux/sizes.h>
> +#include <mach/am33xx-generic.h>
> +
> +static struct omap_barebox_part myir_barebox_part = {
> + .nand_offset = SZ_512K,
> + .nand_size = SZ_512K,
> +};
> +
> +static __init int myir_devices_init(void)
> +{
> + if (!of_machine_is_compatible("myir,myc-am335x"))
> + return 0;
> +
> + am33xx_register_ethaddr(0, 0);
> + am33xx_register_ethaddr(1, 1);
> +
> + switch (bootsource_get()) {
> + case BOOTSOURCE_MMC:
> + omap_set_bootmmc_devname("mmc0");
> + break;
> + case BOOTSOURCE_NAND:
> + omap_set_barebox_part(&myir_barebox_part);
> + break;
> + default:
> + break;
> + }
> +
> + if (IS_ENABLED(CONFIG_DEFAULT_ENVIRONMENT))
> + defaultenv_append_directory(defaultenv_myirtech_x335x);
> +
> + if (IS_ENABLED(CONFIG_SHELL_NONE))
> + return am33xx_of_register_bootdevice();
> +
> + return 0;
> +}
> +coredevice_initcall(myir_devices_init);
> diff --git a/arch/arm/boards/myirtech-x335x/defaultenv-myirtech-x335x/boot/nand b/arch/arm/boards/myirtech-x335x/defaultenv-myirtech-x335x/boot/nand
> new file mode 100644
> index 0000000000..c000041095
> --- /dev/null
> +++ b/arch/arm/boards/myirtech-x335x/defaultenv-myirtech-x335x/boot/nand
> @@ -0,0 +1,4 @@
> +#!/bin/sh
> +
> +global.bootm.image="/dev/nand0.system.ubi.kernel"
> +global.linux.bootargs.dyn.root="ubi.mtd=system ubi.block=0,root root=fe00 ro"
> diff --git a/arch/arm/boards/myirtech-x335x/defaultenv-myirtech-x335x/nv/boot.default b/arch/arm/boards/myirtech-x335x/defaultenv-myirtech-x335x/nv/boot.default
> new file mode 100644
> index 0000000000..026a25cc7e
> --- /dev/null
> +++ b/arch/arm/boards/myirtech-x335x/defaultenv-myirtech-x335x/nv/boot.default
> @@ -0,0 +1 @@
> +nand
> diff --git a/arch/arm/boards/myirtech-x335x/lowlevel.c b/arch/arm/boards/myirtech-x335x/lowlevel.c
> new file mode 100644
> index 0000000000..9afae90b33
> --- /dev/null
> +++ b/arch/arm/boards/myirtech-x335x/lowlevel.c
> @@ -0,0 +1,115 @@
> +/* SPDX-License-Identifier: GPL-2.0+ */
> +/* SPDX-FileCopyrightText: Alexander Shiyan <shc_work@xxxxxxx> */
> +
> +#include <io.h>
> +#include <asm/barebox-arm-head.h>
> +#include <asm/barebox-arm.h>
> +#include <debug_ll.h>
> +#include <init.h>
> +#include <linux/sizes.h>
> +#include <mach/am33xx-clock.h>
> +#include <mach/am33xx-generic.h>
> +#include <mach/am33xx-mux.h>
> +#include <mach/generic.h>
> +#include <mach/sdrc.h>
> +#include <mach/sys_info.h>
> +#include <mach/wdt.h>
> +
> +#define AM335X_ZCZ_1000 0x1c2f
> +
> +static const struct am33xx_ddr_data ddr3_data = {
> + .rd_slave_ratio0 = 0x38,
> + .wr_dqs_slave_ratio0 = 0x44,
> + .fifo_we_slave_ratio0 = 0x94,
> + .wr_slave_ratio0 = 0x7d,
> + .use_rank0_delay = 0x01,
> + .dll_lock_diff0 = 0x00,
> +};
> +
> +static const struct am33xx_cmd_control ddr3_cmd_ctrl = {
> + .slave_ratio0 = 0x80,
> + .dll_lock_diff0 = 0x01,
> + .invert_clkout0 = 0x00,
> + .slave_ratio1 = 0x80,
> + .dll_lock_diff1 = 0x01,
> + .invert_clkout1 = 0x00,
> + .slave_ratio2 = 0x80,
> + .dll_lock_diff2 = 0x01,
> + .invert_clkout2 = 0x00,
> +};
> +
> +/* CPU module contains 512MB (2*256MB) DDR3 SDRAM (2*128MB compatible),
> + * so we configure EMIF for 512MB then detect real size of memory.
> + */
> +static const struct am33xx_emif_regs ddr3_regs = {
> + .emif_read_latency = 0x00100007,
> + .emif_tim1 = 0x0aaad4db,
> + .emif_tim2 = 0x266b7fda,
> + .emif_tim3 = 0x501f867f,
> + .zq_config = 0x50074be4,
> + .sdram_config = 0x61c05332,
> + .sdram_config2 = 0x00,
> + .sdram_ref_ctrl = 0xc30,
> +};
> +
> +extern char __dtb_z_am335x_myirtech_myd_start[];
> +
> +ENTRY_FUNCTION(start_am33xx_myirtech_sram, bootinfo, r1, r2)
> +{
> + int mpupll;
> + void *fdt;
> +
> + am33xx_save_bootinfo((void *)bootinfo);
> +
> + arm_cpu_lowlevel_init();
> +
> + relocate_to_current_adr();
> + setup_c();
> +
> + fdt = __dtb_z_am335x_myirtech_myd_start;
> +
> + /* WDT1 is already running when the bootloader gets control
> + * Disable it to avoid "random" resets
> + */
> + __raw_writel(WDT_DISABLE_CODE1, AM33XX_WDT_REG(WSPR));
> + while (__raw_readl(AM33XX_WDT_REG(WWPS)) != 0x0);
> + __raw_writel(WDT_DISABLE_CODE2, AM33XX_WDT_REG(WSPR));
> + while (__raw_readl(AM33XX_WDT_REG(WWPS)) != 0x0);
> +
> + mpupll = MPUPLL_M_800;
> + if (am33xx_get_cpu_rev() == AM335X_ES2_1) {
> + u32 deviceid = readl(AM33XX_EFUSE_SMA) & 0x1fff;
> + if (deviceid == AM335X_ZCZ_1000)
> + mpupll = MPUPLL_M_1000;
> + }
> +
> + am33xx_pll_init(mpupll, DDRPLL_M_400);
> +
> + am335x_sdram_init(0x18b, &ddr3_cmd_ctrl, &ddr3_regs, &ddr3_data);
> +
> + if (IS_ENABLED(CONFIG_DEBUG_LL)) {
> + am33xx_uart_soft_reset((void *)AM33XX_UART0_BASE);
> + am33xx_enable_uart0_pin_mux();
> + omap_uart_lowlevel_init((void *)AM33XX_UART0_BASE);
> + putc_ll('>');
> + }
> +
> + barebox_arm_entry(AM33XX_DRAM_ADDR_SPACE_START, SZ_256M, fdt);
> +}
> +
> +ENTRY_FUNCTION(start_am33xx_myirtech_sdram, r0, r1, r2)
> +{
> + void *fdt;
> + u32 sdram_size;
> +
> + fdt = __dtb_z_am335x_myirtech_myd_start;
> +
> + fdt += get_runtime_offset();
> +
> + /* Detect 256M/512M module variant */
> + __raw_writel(SZ_512M, AM33XX_DRAM_ADDR_SPACE_START + SZ_256M);
> + __raw_writel(SZ_256M, AM33XX_DRAM_ADDR_SPACE_START + 0);
> + sdram_size = __raw_readl(AM33XX_DRAM_ADDR_SPACE_START + SZ_256M);
> +
> + barebox_arm_entry(AM33XX_DRAM_ADDR_SPACE_START, sdram_size, fdt);
> +}
> diff --git a/arch/arm/configs/am335x_mlo_defconfig b/arch/arm/configs/am335x_mlo_defconfig
> index 51d238db3e..83bb20e4b5 100644
> --- a/arch/arm/configs/am335x_mlo_defconfig
> +++ b/arch/arm/configs/am335x_mlo_defconfig
> @@ -5,6 +5,7 @@ CONFIG_OMAP_SERIALBOOT=y
> CONFIG_OMAP_MULTI_BOARDS=y
> CONFIG_MACH_AFI_GF=y
> CONFIG_MACH_BEAGLEBONE=y
> +CONFIG_MACH_MYIRTECH_X335X=y
> CONFIG_MACH_PHYTEC_SOM_AM335X=y
> CONFIG_THUMB2_BAREBOX=y
> # CONFIG_MEMINFO is not set
> diff --git a/arch/arm/configs/omap_defconfig b/arch/arm/configs/omap_defconfig
> index 59892cb231..ae4d1a67da 100644
> --- a/arch/arm/configs/omap_defconfig
> +++ b/arch/arm/configs/omap_defconfig
> @@ -6,6 +6,7 @@ CONFIG_OMAP_MULTI_BOARDS=y
> CONFIG_MACH_AFI_GF=y
> CONFIG_MACH_BEAGLE=y
> CONFIG_MACH_BEAGLEBONE=y
> +CONFIG_MACH_MYIRTECH_X335X=y
> CONFIG_MACH_PHYTEC_SOM_AM335X=y
> CONFIG_MACH_VSCOM_BALTOS=y
> CONFIG_MACH_WAGO_PFC_AM35XX=y
> @@ -46,6 +47,7 @@ CONFIG_CMD_GO=y
> CONFIG_CMD_LOADB=y
> CONFIG_CMD_RESET=y
> CONFIG_CMD_UIMAGE=y
> +CONFIG_CMD_BOOTCHOOSER=y
> CONFIG_CMD_PARTITION=y
> CONFIG_CMD_UBIFORMAT=y
> CONFIG_CMD_EXPORT=y
> @@ -93,7 +95,6 @@ CONFIG_CMD_OF_FIXUP_STATUS=y
> CONFIG_CMD_OFTREE=y
> CONFIG_CMD_TIME=y
> CONFIG_CMD_STATE=y
> -CONFIG_CMD_BOOTCHOOSER=y
> CONFIG_NET=y
> CONFIG_NET_NFS=y
> CONFIG_NET_NETCONSOLE=y
> diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
> index 925ac12aa5..619354fcb6 100644
> --- a/arch/arm/dts/Makefile
> +++ b/arch/arm/dts/Makefile
> @@ -40,6 +40,7 @@ lwl-$(CONFIG_MACH_MARVELL_ARMADA_XP_GP) += armada-xp-gp-bb.dtb.o
> lwl-$(CONFIG_MACH_MARVELL_ARMADA_XP_DB) += armada-xp-db-bb.dtb.o
> lwl-$(CONFIG_MACH_MB7707) += module-mb7707.dtb.o
> lwl-$(CONFIG_MACH_MX28EVK) += imx28-evk.dtb.o
> +lwl-$(CONFIG_MACH_MYIRTECH_X335X) += am335x-myirtech-myd.dtb.o
> lwl-$(CONFIG_MACH_NETGEAR_RN104) += armada-370-rn104-bb.dtb.o
> lwl-$(CONFIG_MACH_NETGEAR_RN2120) += armada-xp-rn2120-bb.dtb.o
> lwl-$(CONFIG_MACH_NITROGEN6) += imx6q-nitrogen6x.dtb.o imx6dl-nitrogen6x.dtb.o imx6qp-nitrogen6_max.dtb.o
> diff --git a/arch/arm/dts/am335x-myirtech-myd.dts b/arch/arm/dts/am335x-myirtech-myd.dts
> new file mode 100644
> index 0000000000..9baf3d516d
> --- /dev/null
> +++ b/arch/arm/dts/am335x-myirtech-myd.dts
> @@ -0,0 +1,41 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/* SPDX-FileCopyrightText: Alexander Shiyan, <shc_work@xxxxxxx> */
> +
> +/dts-v1/;
> +
> +#include <arm/am335x-myirtech-myd.dts>
> +
> +/ {
> + chosen {
> + environment {
> + compatible = "barebox,environment";
> + device-path = &env_nand;
> + };
> + };
> +
> +};
> +
> +&nand0 {
> + /delete-node/ partition@0;
> + /delete-node/ partition@20000;
> +
> + partition@0 {
> + label = "MLO";
> + reg = <0x00000 0x80000>;
> + };
> +
> + partition@80000 {
> + label = "boot";
> + reg = <0x80000 0x80000>;
> + };
> +
> + env_nand: partition@100000 {
> + label = "env";
> + reg = <0x100000 0x40000>;
> + };
> +
> + partition@140000 {
> + label = "system";
> + reg = <0x140000 0>;
> + };
I assumed that you would use the new partition binding now.
Can you make the barebox partition bigger? That makes sure that future
barebox images will fit into it.
Sascha
--
Pengutronix e.K. | |
Steuerwalder Str. 21 | http://www.pengutronix.de/ |
31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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