]>
git.ipfire.org Git - people/ms/u-boot.git/blob - arch/arm/mach-uniphier/bcu/bcu-ph1-ld4.c
2 * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
4 * SPDX-License-Identifier: GPL-2.0+
8 #include <mach/bcu-regs.h>
11 #define ch(x) ((x) >= 32 ? 0 : (x) < 0 ? 0x11111111 : 0x11111111 << (x))
13 int ph1_ld4_bcu_init(const struct uniphier_board_data
*bd
)
17 writel(0x44444444, BCSCR0
); /* 0x20000000-0x3fffffff: ASM bus */
18 writel(0x11111111, BCSCR2
); /* 0x80000000-0x9fffffff: IPPC/IPPD-bus */
19 writel(0x11111111, BCSCR3
); /* 0xa0000000-0xbfffffff: IPPC/IPPD-bus */
20 writel(0x11111111, BCSCR4
); /* 0xc0000000-0xdfffffff: IPPC/IPPD-bus */
21 writel(0x11111111, BCSCR5
); /* 0xe0000000-0Xffffffff: IPPC/IPPD-bus */
23 /* Specify DDR channel */
24 shift
= (bd
->dram_ch1_base
- bd
->dram_ch0_base
) / 0x04000000 * 4;
25 writel(ch(shift
), BCIPPCCHR2
); /* 0x80000000-0x9fffffff */
28 writel(ch(shift
), BCIPPCCHR3
); /* 0xa0000000-0xbfffffff */
31 writel(ch(shift
), BCIPPCCHR4
); /* 0xc0000000-0xdfffffff */