u-boot/include/configs/vexpress_common.h

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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2011 ARM Limited
* (C) Copyright 2010 Linaro
* Matt Waddel, <matt.waddel@linaro.org>
*
* Configuration for Versatile Express. Parts were derived from other ARM
* configurations.
*/
#ifndef __VEXPRESS_COMMON_H
#define __VEXPRESS_COMMON_H
/*
* Definitions copied from linux kernel:
* arch/arm/mach-vexpress/include/mach/motherboard.h
*/
#ifdef VEXPRESS_ORIGINAL_MEMORY_MAP
/* CS register bases for the original memory map. */
#define V2M_PA_CS0 0x40000000
#define V2M_PA_CS1 0x44000000
#define V2M_PA_CS2 0x48000000
#define V2M_PA_CS3 0x4c000000
#define V2M_PA_CS7 0x10000000
#define V2M_PERIPH_OFFSET(x) (x << 12)
#define V2M_SYSREGS (V2M_PA_CS7 + V2M_PERIPH_OFFSET(0))
#define V2M_SYSCTL (V2M_PA_CS7 + V2M_PERIPH_OFFSET(1))
#define V2M_SERIAL_BUS_PCI (V2M_PA_CS7 + V2M_PERIPH_OFFSET(2))
#define V2M_BASE 0x60000000
#elif defined(CONFIG_VEXPRESS_EXTENDED_MEMORY_MAP)
/* CS register bases for the extended memory map. */
#define V2M_PA_CS0 0x08000000
#define V2M_PA_CS1 0x0c000000
#define V2M_PA_CS2 0x14000000
#define V2M_PA_CS3 0x18000000
#define V2M_PA_CS7 0x1c000000
#define V2M_PERIPH_OFFSET(x) (x << 16)
#define V2M_SYSREGS (V2M_PA_CS7 + V2M_PERIPH_OFFSET(1))
#define V2M_SYSCTL (V2M_PA_CS7 + V2M_PERIPH_OFFSET(2))
#define V2M_SERIAL_BUS_PCI (V2M_PA_CS7 + V2M_PERIPH_OFFSET(3))
#define V2M_BASE 0x80000000
#endif
/*
* Physical addresses, offset from V2M_PA_CS0-3
*/
#define V2M_NOR0 (V2M_PA_CS0)
#define V2M_NOR1 (V2M_PA_CS1)
#define V2M_SRAM (V2M_PA_CS2)
#define V2M_VIDEO_SRAM (V2M_PA_CS3 + 0x00000000)
#define V2M_ISP1761 (V2M_PA_CS3 + 0x03000000)
/* Common peripherals relative to CS7. */
#define V2M_AACI (V2M_PA_CS7 + V2M_PERIPH_OFFSET(4))
#define V2M_KMI0 (V2M_PA_CS7 + V2M_PERIPH_OFFSET(6))
#define V2M_KMI1 (V2M_PA_CS7 + V2M_PERIPH_OFFSET(7))
#define V2M_UART0 (V2M_PA_CS7 + V2M_PERIPH_OFFSET(9))
#define V2M_UART1 (V2M_PA_CS7 + V2M_PERIPH_OFFSET(10))
#define V2M_UART2 (V2M_PA_CS7 + V2M_PERIPH_OFFSET(11))
#define V2M_UART3 (V2M_PA_CS7 + V2M_PERIPH_OFFSET(12))
#define V2M_WDT (V2M_PA_CS7 + V2M_PERIPH_OFFSET(15))
#define V2M_TIMER01 (V2M_PA_CS7 + V2M_PERIPH_OFFSET(17))
#define V2M_TIMER23 (V2M_PA_CS7 + V2M_PERIPH_OFFSET(18))
#define V2M_SERIAL_BUS_DVI (V2M_PA_CS7 + V2M_PERIPH_OFFSET(22))
#define V2M_RTC (V2M_PA_CS7 + V2M_PERIPH_OFFSET(23))
#define V2M_CF (V2M_PA_CS7 + V2M_PERIPH_OFFSET(26))
#define V2M_CLCD (V2M_PA_CS7 + V2M_PERIPH_OFFSET(31))
#define V2M_SIZE_CS7 V2M_PERIPH_OFFSET(32)
/* System register offsets. */
#define V2M_SYS_CFGDATA (V2M_SYSREGS + 0x0a0)
#define V2M_SYS_CFGCTRL (V2M_SYSREGS + 0x0a4)
#define V2M_SYS_CFGSTAT (V2M_SYSREGS + 0x0a8)
/*
* Configuration
*/
#define SYS_CFG_START (1 << 31)
#define SYS_CFG_WRITE (1 << 30)
#define SYS_CFG_OSC (1 << 20)
#define SYS_CFG_VOLT (2 << 20)
#define SYS_CFG_AMP (3 << 20)
#define SYS_CFG_TEMP (4 << 20)
#define SYS_CFG_RESET (5 << 20)
#define SYS_CFG_SCC (6 << 20)
#define SYS_CFG_MUXFPGA (7 << 20)
#define SYS_CFG_SHUTDOWN (8 << 20)
#define SYS_CFG_REBOOT (9 << 20)
#define SYS_CFG_DVIMODE (11 << 20)
#define SYS_CFG_POWER (12 << 20)
#define SYS_CFG_SITE_MB (0 << 16)
#define SYS_CFG_SITE_DB1 (1 << 16)
#define SYS_CFG_SITE_DB2 (2 << 16)
#define SYS_CFG_STACK(n) ((n) << 12)
#define SYS_CFG_ERR (1 << 1)
#define SYS_CFG_COMPLETE (1 << 0)
/* Board info register */
#define SYS_ID V2M_SYSREGS
#define SCTL_BASE V2M_SYSCTL
#define VEXPRESS_FLASHPROG_FLVPPEN (1 << 0)
#define CFG_SYS_TIMER_RATE 1000000
#define CFG_SYS_TIMER_COUNTER (V2M_TIMER01 + 0x4)
/* PL011 Serial Configuration */
#define CFG_PL011_CLOCK 24000000
#define CFG_PL01x_PORTS {(void *)CFG_SYS_SERIAL0, \
(void *)CFG_SYS_SERIAL1}
#define CFG_SYS_SERIAL0 V2M_UART0
#define CFG_SYS_SERIAL1 V2M_UART1
/* Miscellaneous configurable options */
#define LINUX_BOOT_PARAM_ADDR (V2M_BASE + 0x2000)
/* Physical Memory Map */
#define PHYS_SDRAM_1 (V2M_BASE) /* SDRAM Bank #1 */
#define PHYS_SDRAM_2 (((unsigned int)V2M_BASE) + \
((unsigned int)0x20000000))
#define PHYS_SDRAM_1_SIZE 0x20000000 /* 512 MB */
#define PHYS_SDRAM_2_SIZE 0x20000000 /* 512 MB */
/* additions for new relocation code */
#define CFG_SYS_SDRAM_BASE PHYS_SDRAM_1
#define CFG_SYS_INIT_RAM_SIZE 0x1000
/* Basic environment settings */
#define BOOT_TARGET_DEVICES(func) \
func(MMC, mmc, 1) \
func(MMC, mmc, 0) \
func(PXE, pxe, na) \
func(DHCP, dhcp, na)
#include <config_distro_bootcmd.h>
#define CFG_EXTRA_ENV_SETTINGS \
ARM: vexpress_ca9x4: Reintroduce board in order to use with QEMU. vexpress_ca9x4 is seemingly the only board except for qemu_arm which is able to run U-Boot correctly, using the `-M vexpress-a9` option to QEMU. Building for qemu_arm and running qemu-system-arm with the `-M virt` argument has a number of downsides, most importantly that it only supports virtio storage drivers. This significantly reduces its usefulness in testing memory card and Flash solutions, especially when the tested images are from a third party source. So therefore we reintroduce the vexpress_ca9x4 board in this commit, with the explicit goal of using it with QEMU. A number of differences to note from the original: * Since the board was apparently unmaintained, I have now set myself as the maintainer. * The board has been converted to use the driver model, which was the reason it was removed in the first place. * The vexpress_ca15_tc2 and vexpress_ca5x2 boards, which were removed in the same commit, are not necessary for the QEMU use case, and have been omitted. * An `mmc0` alias was introduced in the dts file. The mmc is not detected correctly without this, now that it's based on the device tree instead of the board's init function. * A couple of other nodes were removed because they were problematic when trying to run the UEFI bootmgr. Once again, the primary use case here is QEMU, and these nodes are not needed for that to work. * Unnecessary board init code has been removed, thanks to driver model and device tree. * `CONFIG_OF_EMBED` has been enabled. I know this goes against recommended practice, but there doesn't seem to be any other way to pass the dtb to U-Boot in the QEMU scenario. Using the -dtb argument does not work, I suppose because U-Boot doesn't use the same mechanics as the kernel when it's booting. * Load addresses have been changed to fit QEMU use case. People wanting to get a more detailed, yet somewhat isolated, diff between this and the original, can run this command: git diff c6c26a05b89f25a06e7562f8c2071b60fd0c9eac~1 -- \ $( git diff-tree --diff-filter=A -r --name-only HEAD~1 HEAD) (Make sure to either check out this commit first, or replace HEAD with the commit ID of this commit) Signed-off-by: Kristian Amlie <kristian.amlie@northern.tech>
2021-09-07 06:37:51 +00:00
"kernel_addr_r=0x60100000\0" \
"fdt_addr_r=0x60000000\0" \
"bootargs=console=tty0 console=ttyAMA0,38400n8\0" \
BOOTENV \
"console=ttyAMA0,38400n8\0" \
"dram=1024M\0" \
"root=/dev/sda1 rw\0" \
"mtd=armflash:1M@0x800000(uboot),7M@0x1000000(kernel)," \
"24M@0x2000000(initrd)\0" \
"flashargs=setenv bootargs root=${root} console=${console} " \
"mem=${dram} mtdparts=${mtd} mmci.fmax=190000 " \
"devtmpfs.mount=0 vmalloc=256M\0" \
"bootflash=run flashargs; " \
"cp ${ramdisk_addr} ${ramdisk_addr_r} ${maxramdisk}; " \
"bootm ${kernel_addr} ${ramdisk_addr_r}\0" \
"fdtfile=" CONFIG_DEFAULT_FDT_FILE "\0"
/* FLASH and environment organization */
#define CFG_SYS_FLASH_SIZE 0x04000000
/* Timeout values in ticks */
/* Room required on the stack for the environment data */
/*
* Amount of flash used for environment:
* We don't know which end has the small erase blocks so we use the penultimate
* sector location for the environment
*/
/* Store environment at top of flash */
#define CFG_SYS_FLASH_BANKS_LIST { V2M_NOR0, V2M_NOR1 }
#endif /* VEXPRESS_COMMON_H */