diff options
Diffstat (limited to 'board/imgtec')
| -rw-r--r-- | board/imgtec/boston/Kconfig | 16 | ||||
| -rw-r--r-- | board/imgtec/boston/MAINTAINERS | 6 | ||||
| -rw-r--r-- | board/imgtec/boston/Makefile | 9 | ||||
| -rw-r--r-- | board/imgtec/boston/boston-lcd.h | 21 | ||||
| -rw-r--r-- | board/imgtec/boston/boston-regs.h | 26 | ||||
| -rw-r--r-- | board/imgtec/boston/checkboard.c | 30 | ||||
| -rw-r--r-- | board/imgtec/boston/ddr.c | 30 | ||||
| -rw-r--r-- | board/imgtec/boston/lowlevel_init.S | 56 |
8 files changed, 194 insertions, 0 deletions
diff --git a/board/imgtec/boston/Kconfig b/board/imgtec/boston/Kconfig new file mode 100644 index 0000000000..ab76a3c626 --- /dev/null +++ b/board/imgtec/boston/Kconfig @@ -0,0 +1,16 @@ +if TARGET_BOSTON + +config SYS_BOARD + default "boston" + +config SYS_VENDOR + default "imgtec" + +config SYS_CONFIG_NAME + default "boston" + +config SYS_TEXT_BASE + default 0x9fc00000 if 32BIT + default 0xffffffff9fc00000 if 64BIT + +endif diff --git a/board/imgtec/boston/MAINTAINERS b/board/imgtec/boston/MAINTAINERS new file mode 100644 index 0000000000..30dd481a26 --- /dev/null +++ b/board/imgtec/boston/MAINTAINERS @@ -0,0 +1,6 @@ +BOSTON BOARD +M: Paul Burton <paul.burton@imgtec.com> +S: Maintained +F: board/imgtec/boston/ +F: include/configs/boston.h +F: configs/boston_defconfig diff --git a/board/imgtec/boston/Makefile b/board/imgtec/boston/Makefile new file mode 100644 index 0000000000..deda457f3c --- /dev/null +++ b/board/imgtec/boston/Makefile @@ -0,0 +1,9 @@ +# +# Copyright (C) 2016 Imagination Technologies +# +# SPDX-License-Identifier: GPL-2.0 +# + +obj-y += checkboard.o +obj-y += ddr.o +obj-y += lowlevel_init.o diff --git a/board/imgtec/boston/boston-lcd.h b/board/imgtec/boston/boston-lcd.h new file mode 100644 index 0000000000..9f5c1b9005 --- /dev/null +++ b/board/imgtec/boston/boston-lcd.h @@ -0,0 +1,21 @@ +/* + * Copyright (C) 2016 Imagination Technologies + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#ifndef __BOARD_BOSTON_LCD_H__ +#define __BOARD_BOSTON_LCD_H__ + +/** + * lowlevel_display() - Display a message on Boston's LCD + * @msg: The string to display + * + * Display the string @msg on the 7 character LCD display of the Boston board. + * This is typically used for debug or to present some form of status + * indication to the user, allowing faults to be identified when things go + * wrong early enough that the UART isn't up. + */ +void lowlevel_display(const char msg[static 8]); + +#endif /* __BOARD_BOSTON_LCD_H__ */ diff --git a/board/imgtec/boston/boston-regs.h b/board/imgtec/boston/boston-regs.h new file mode 100644 index 0000000000..b9dfbb4763 --- /dev/null +++ b/board/imgtec/boston/boston-regs.h @@ -0,0 +1,26 @@ +/* + * Copyright (C) 2016 Imagination Technologies + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#ifndef __BOARD_BOSTON_REGS_H__ +#define __BOARD_BOSTON_REGS_H__ + +#include <asm/addrspace.h> + +#define BOSTON_PLAT_BASE CKSEG1ADDR(0x17ffd000) +#define BOSTON_LCD_BASE CKSEG1ADDR(0x17fff000) + +/* + * Platform Register Definitions + */ +#define BOSTON_PLAT_CORE_CL (BOSTON_PLAT_BASE + 0x04) + +#define BOSTON_PLAT_DDR3STAT (BOSTON_PLAT_BASE + 0x14) +# define BOSTON_PLAT_DDR3STAT_CALIB (1 << 2) + +#define BOSTON_PLAT_DDRCONF0 (BOSTON_PLAT_BASE + 0x38) +# define BOSTON_PLAT_DDRCONF0_SIZE (0xf << 0) + +#endif /* __BOARD_BOSTON_REGS_H__ */ diff --git a/board/imgtec/boston/checkboard.c b/board/imgtec/boston/checkboard.c new file mode 100644 index 0000000000..93eae7f603 --- /dev/null +++ b/board/imgtec/boston/checkboard.c @@ -0,0 +1,30 @@ +/* + * Copyright (C) 2016 Imagination Technologies + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <common.h> + +#include <asm/io.h> +#include <asm/mipsregs.h> + +#include "boston-lcd.h" +#include "boston-regs.h" + +int checkboard(void) +{ + u32 changelist; + + lowlevel_display("U-boot "); + + printf("Board: MIPS Boston\n"); + + printf("CPU: 0x%08x", read_c0_prid()); + changelist = __raw_readl((uint32_t *)BOSTON_PLAT_CORE_CL); + if (changelist > 1) + printf(" cl%x", changelist); + putc('\n'); + + return 0; +} diff --git a/board/imgtec/boston/ddr.c b/board/imgtec/boston/ddr.c new file mode 100644 index 0000000000..ceffef61ef --- /dev/null +++ b/board/imgtec/boston/ddr.c @@ -0,0 +1,30 @@ +/* + * Copyright (C) 2016 Imagination Technologies + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <common.h> + +#include <asm/io.h> + +#include "boston-regs.h" + +phys_size_t initdram(int board_type) +{ + u32 ddrconf0 = __raw_readl((uint32_t *)BOSTON_PLAT_DDRCONF0); + + return (phys_size_t)(ddrconf0 & BOSTON_PLAT_DDRCONF0_SIZE) << 30; +} + +ulong board_get_usable_ram_top(ulong total_size) +{ + DECLARE_GLOBAL_DATA_PTR; + + if (gd->ram_top < CONFIG_SYS_SDRAM_BASE) { + /* 2GB wrapped around to 0 */ + return CKSEG0ADDR(256 << 20); + } + + return min_t(unsigned long, gd->ram_top, CKSEG0ADDR(256 << 20)); +} diff --git a/board/imgtec/boston/lowlevel_init.S b/board/imgtec/boston/lowlevel_init.S new file mode 100644 index 0000000000..0c01aa981d --- /dev/null +++ b/board/imgtec/boston/lowlevel_init.S @@ -0,0 +1,56 @@ +/* + * Copyright (C) 2016 Imagination Technologies + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <config.h> + +#include <asm/addrspace.h> +#include <asm/asm.h> +#include <asm/mipsregs.h> +#include <asm/regdef.h> + +#include "boston-regs.h" + +.data + +msg_ddr_cal: .ascii "DDR Cal " +msg_ddr_ok: .ascii "DDR OK " + +.text + +LEAF(lowlevel_init) + move s0, ra + + PTR_LA a0, msg_ddr_cal + bal lowlevel_display + + PTR_LI t0, BOSTON_PLAT_DDR3STAT +1: lw t1, 0(t0) + andi t1, t1, BOSTON_PLAT_DDR3STAT_CALIB + beqz t1, 1b + + PTR_LA a0, msg_ddr_ok + bal lowlevel_display + + move v0, zero + jr s0 + END(lowlevel_init) + +LEAF(lowlevel_display) + .set push + .set noat + PTR_LI AT, BOSTON_LCD_BASE +#ifdef CONFIG_64BIT + ld k1, 0(a0) + sd k1, 0(AT) +#else + lw k1, 0(a0) + sw k1, 0(AT) + lw k1, 4(a0) + sw k1, 4(AT) +#endif + .set pop +1: jr ra + END(lowlevel_display) |