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55 lines
1.5 KiB
55 lines
1.5 KiB
20 years ago
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/*
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* Host bridge init code for the Marvell/Galileo EV-64260-BP evaluation board
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* with a GT64260 onboard.
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*
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* Author: Mark A. Greer <mgreer@mvista.com>
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*
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* 2001 (c) MontaVista Software, Inc. This file is licensed under
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* the terms of the GNU General Public License version 2. This program
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* is licensed "as is" without any warranty of any kind, whether express
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* or implied.
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*/
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#include <linux/types.h>
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#include <asm/reg.h>
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#include <asm/io.h>
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#include <asm/mv64x60_defs.h>
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#include <platforms/ev64260.h>
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#ifdef CONFIG_SERIAL_MPSC_CONSOLE
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extern u32 mv64x60_console_baud;
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extern u32 mv64x60_mpsc_clk_src;
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extern u32 mv64x60_mpsc_clk_freq;
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#endif
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void
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mv64x60_board_init(void __iomem *old_base, void __iomem *new_base)
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{
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u32 p, v;
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/* DINK doesn't enable 745x timebase, so enable here (Adrian Cox) */
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p = mfspr(SPRN_PVR);
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p >>= 16;
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/* Reasonable SWAG at a 745x PVR value */
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if (((p & 0xfff0) == 0x8000) && (p != 0x800c)) {
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v = mfspr(SPRN_HID0);
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v |= HID0_TBEN;
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mtspr(SPRN_HID0, v);
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}
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#ifdef CONFIG_SERIAL_8250_CONSOLE
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/*
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* Change device bus 2 window so that bootoader can do I/O thru
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* 8250/16550 UART that's mapped in that window.
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*/
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out_le32(new_base + MV64x60_CPU2DEV_2_BASE, EV64260_UART_BASE >> 20);
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out_le32(new_base + MV64x60_CPU2DEV_2_SIZE, EV64260_UART_END >> 20);
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__asm__ __volatile__("sync");
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#elif defined(CONFIG_SERIAL_MPSC_CONSOLE)
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mv64x60_console_baud = EV64260_DEFAULT_BAUD;
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mv64x60_mpsc_clk_src = EV64260_MPSC_CLK_SRC;
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mv64x60_mpsc_clk_freq = EV64260_MPSC_CLK_FREQ;
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#endif
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}
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