| Masahiro Yamada | fa71441 | 2015-07-21 14:04:22 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com> |
| 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0+ |
| 5 | */ |
| 6 | |
| 7 | #include <common.h> |
| 8 | #include <linux/io.h> |
| 9 | #include <mach/sbc-regs.h> |
| 10 | #include <mach/sg-regs.h> |
| 11 | |
| 12 | void sbc_init(void) |
| 13 | { |
| 14 | /* only address/data multiplex mode is supported */ |
| 15 | |
| 16 | /* |
| 17 | * Only CS1 is connected to support card. |
| 18 | * BKSZ[1:0] should be set to "01". |
| 19 | */ |
| 20 | writel(SBCTRL0_ADMULTIPLX_MEM_VALUE, SBCTRL10); |
| 21 | writel(SBCTRL1_ADMULTIPLX_MEM_VALUE, SBCTRL11); |
| 22 | writel(SBCTRL2_ADMULTIPLX_MEM_VALUE, SBCTRL12); |
| 23 | |
| 24 | if (boot_is_swapped()) { |
| 25 | /* |
| 26 | * Boot Swap On: boot from external NOR/SRAM |
| 27 | * 0x02000000-0x03ffffff is a mirror of 0x00000000-0x01ffffff. |
| 28 | * |
| 29 | * 0x00000000-0x01efffff, 0x02000000-0x03efffff: memory bank |
| 30 | * 0x01f00000-0x01ffffff, 0x03f00000-0x03ffffff: peripherals |
| 31 | */ |
| 32 | writel(0x0000bc01, SBBASE0); |
| 33 | } else { |
| 34 | /* |
| 35 | * Boot Swap Off: boot from mask ROM |
| 36 | * 0x00000000-0x01ffffff: mask ROM |
| 37 | * 0x02000000-0x03efffff: memory bank (31MB) |
| 38 | * 0x03f00000-0x03ffffff: peripherals (1MB) |
| 39 | */ |
| 40 | writel(0x0000be01, SBBASE0); /* dummy */ |
| 41 | writel(0x0200be01, SBBASE1); |
| 42 | } |
| 43 | |
| 44 | sg_set_pinsel(99, 1); /* GPIO26 -> EA24 */ |
| 45 | } |