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Commit | Line | Data |
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5894ca00 | 1 | /* |
f6e7f07c | 2 | * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com> |
5894ca00 MY |
3 | * |
4 | * SPDX-License-Identifier: GPL-2.0+ | |
5 | */ | |
6 | ||
f6e7f07c | 7 | #include <linux/io.h> |
107b3fb4 MY |
8 | |
9 | #include "../init.h" | |
10 | #include "bcu-regs.h" | |
5894ca00 MY |
11 | |
12 | #define ch(x) ((x) >= 32 ? 0 : (x) < 0 ? 0x11111111 : 0x11111111 << (x)) | |
13 | ||
323d1f9d | 14 | int ph1_ld4_bcu_init(const struct uniphier_board_data *bd) |
5894ca00 MY |
15 | { |
16 | int shift; | |
17 | ||
18 | writel(0x44444444, BCSCR0); /* 0x20000000-0x3fffffff: ASM bus */ | |
19 | writel(0x11111111, BCSCR2); /* 0x80000000-0x9fffffff: IPPC/IPPD-bus */ | |
20 | writel(0x11111111, BCSCR3); /* 0xa0000000-0xbfffffff: IPPC/IPPD-bus */ | |
21 | writel(0x11111111, BCSCR4); /* 0xc0000000-0xdfffffff: IPPC/IPPD-bus */ | |
22 | writel(0x11111111, BCSCR5); /* 0xe0000000-0Xffffffff: IPPC/IPPD-bus */ | |
23 | ||
24 | /* Specify DDR channel */ | |
323d1f9d | 25 | shift = (bd->dram_ch1_base - bd->dram_ch0_base) / 0x04000000 * 4; |
5894ca00 MY |
26 | writel(ch(shift), BCIPPCCHR2); /* 0x80000000-0x9fffffff */ |
27 | ||
28 | shift -= 32; | |
29 | writel(ch(shift), BCIPPCCHR3); /* 0xa0000000-0xbfffffff */ | |
30 | ||
31 | shift -= 32; | |
32 | writel(ch(shift), BCIPPCCHR4); /* 0xc0000000-0xdfffffff */ | |
323d1f9d MY |
33 | |
34 | return 0; | |
5894ca00 | 35 | } |