2 * Relocate bridge's register base and call board specific routine.
4 * Author: Mark A. Greer <source@mvista.com>
6 * 2005 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
12 #include <linux/config.h>
13 #include <linux/types.h>
15 #include <asm/mv64x60_defs.h>
17 extern struct bi_record *decompress_kernel(unsigned long load_addr,
18 int num_words, unsigned long cksum);
21 u32 size_reg[MV64x60_CPU2MEM_WINDOWS] = {
22 MV64x60_CPU2MEM_0_SIZE, MV64x60_CPU2MEM_1_SIZE,
23 MV64x60_CPU2MEM_2_SIZE, MV64x60_CPU2MEM_3_SIZE
26 /* Read mem ctlr to get the amount of mem in system */
28 mv64360_get_mem_size(void)
33 enables = in_le32((void __iomem *)CONFIG_MV64X60_NEW_BASE +
34 MV64360_CPU_BAR_ENABLE) & 0xf;
36 for (i=0; i<MV64x60_CPU2MEM_WINDOWS; i++)
37 if (!(enables & (1<<i))) {
38 v = in_le32((void __iomem *)CONFIG_MV64X60_NEW_BASE
39 + size_reg[i]) & 0xffff;
48 mv64x60_move_base(void __iomem *old_base, void __iomem *new_base)
52 if (old_base != new_base) {
56 #else /* Must be mv64[34]60 */
60 b = in_le32(old_base + MV64x60_INTERNAL_SPACE_DECODE);
62 b |= ((u32)new_base >> (32 - bits));
63 out_le32(old_base + MV64x60_INTERNAL_SPACE_DECODE, b);
65 __asm__ __volatile__("sync");
67 /* Wait for change to happen (in accordance with the manual) */
68 while (in_le32(new_base + MV64x60_INTERNAL_SPACE_DECODE) != b);
72 void __attribute__ ((weak))
73 mv64x60_board_init(void __iomem *old_base, void __iomem *new_base)
78 load_kernel(unsigned long load_addr, int num_words, unsigned long cksum,
79 void *ign1, void *ign2)
81 mv64x60_move_base((void __iomem *)CONFIG_MV64X60_BASE,
82 (void __iomem *)CONFIG_MV64X60_NEW_BASE);
83 mv64x60_board_init((void __iomem *)CONFIG_MV64X60_BASE,
84 (void __iomem *)CONFIG_MV64X60_NEW_BASE);
85 return decompress_kernel(load_addr, num_words, cksum);