| /* |
| * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com> |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| #include <common.h> |
| #include <linux/io.h> |
| #include <mach/sbc-regs.h> |
| #include <mach/sg-regs.h> |
| |
| void sbc_init(void) |
| { |
| /* only address/data multiplex mode is supported */ |
| |
| /* |
| * Only CS1 is connected to support card. |
| * BKSZ[1:0] should be set to "01". |
| */ |
| writel(SBCTRL0_ADMULTIPLX_MEM_VALUE, SBCTRL10); |
| writel(SBCTRL1_ADMULTIPLX_MEM_VALUE, SBCTRL11); |
| writel(SBCTRL2_ADMULTIPLX_MEM_VALUE, SBCTRL12); |
| |
| if (boot_is_swapped()) { |
| /* |
| * Boot Swap On: boot from external NOR/SRAM |
| * 0x02000000-0x03ffffff is a mirror of 0x00000000-0x01ffffff. |
| * |
| * 0x00000000-0x01efffff, 0x02000000-0x03efffff: memory bank |
| * 0x01f00000-0x01ffffff, 0x03f00000-0x03ffffff: peripherals |
| */ |
| writel(0x0000bc01, SBBASE0); |
| } else { |
| /* |
| * Boot Swap Off: boot from mask ROM |
| * 0x00000000-0x01ffffff: mask ROM |
| * 0x02000000-0x03efffff: memory bank (31MB) |
| * 0x03f00000-0x03ffffff: peripherals (1MB) |
| */ |
| writel(0x0000be01, SBBASE0); /* dummy */ |
| writel(0x0200be01, SBBASE1); |
| } |
| |
| sg_set_pinsel(99, 1); /* GPIO26 -> EA24 */ |
| } |