5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
28 #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
32 #include "../common/common.h"
34 DECLARE_GLOBAL_DATA_PTR;
36 const uint sdram_table[] =
38 0x0f07fc04, 0x0ffffc04, 0x00bdfc04, 0x0ff77c00,
39 0x1ffffc05, 0xfffffc04, 0xfffffc04, 0xfffffc04,
41 0x0f07fc04, 0x0ffffc04, 0x00bdfc04, 0x00fffc00,
42 0x00fffc00, 0x00fffc00, 0x0ff77c00, 0x1ffffc05,
43 /* 0x10 Load mode register */
44 0x0ffffc34, 0x0ff57c04, 0x0ffffc04, 0x1ffffc05,
45 0xfffffc04, 0xfffffc04, 0xfffffc04, 0xfffffc04,
46 /* 0x18 Single Write */
47 0x0f07fc04, 0x0ffffc00, 0x00bd7c04, 0x0ffffc04,
48 0x0ff77c04, 0x1ffffc05, 0xfffffc04, 0xfffffc04,
49 /* 0x20 Burst Write */
50 0x0f07fc04, 0x0ffffc00, 0x00bd7c00, 0x00fffc00,
51 0x00fffc00, 0x00fffc04, 0x0ffffc04, 0x0ff77c04,
52 0x1ffffc05, 0xfffffc04, 0xfffffc04, 0xfffffc04,
53 0xfffffc04, 0xfffffc04, 0xfffffc04, 0xfffffc04,
54 /* 0x30 Precharge all and Refresh */
55 0x0ff77c04, 0x0ffffc04, 0x0ff5fc84, 0x0ffffc04,
56 0x0ffffc04, 0x0ffffc84, 0x1ffffc05, 0xfffffc04,
57 0xfffffc04, 0xfffffc04, 0xfffffc04, 0xfffffc04,
59 0x7ffffc04, 0xfffffc07, 0xfffffc04, 0xfffffc04,
64 puts ("Board: Keymile ");
65 #if defined(CONFIG_KMSUPX4)
70 if (ethernet_present ())
71 puts (" with PIGGY.");
76 phys_size_t initdram (int board_type)
78 volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
79 volatile memctl8xx_t *memctl = &immap->im_memctl;
82 upmconfig (UPMB, (uint *) sdram_table,
83 sizeof (sdram_table) / sizeof (uint));
86 * Preliminary prescaler for refresh (depends on number of
87 * banks): This value is selected for four cycles every 62.4 us
88 * with two SDRAM banks or four cycles every 31.2 us with one
89 * bank. It will be adjusted after memory sizing.
91 memctl->memc_mptpr = CONFIG_SYS_MPTPR;
94 * The following value is used as an address (i.e. opcode) for
95 * the LOAD MODE REGISTER COMMAND during SDRAM initialisation. If
96 * the port size is 32bit the SDRAM does NOT "see" the lower two
97 * address lines, i.e. mar=0x00000088 -> opcode=0x00000022 for
100 * | | | | +- Burst Length = 4
101 * | | | +----- Burst Type = Sequential
102 * | | +------- CAS Latency = 2
103 * | +----------- Operating Mode = Standard
104 * +-------------- Write Burst Mode = Programmed Burst Length
106 memctl->memc_mar = CONFIG_SYS_MAR;
109 * Map controller banks 1 to the SDRAM banks 1 at
110 * preliminary addresses - these have to be modified after the
111 * SDRAM size has been determined.
113 memctl->memc_or1 = CONFIG_SYS_OR1_PRELIM;
114 memctl->memc_br1 = CONFIG_SYS_BR1_PRELIM;
116 memctl->memc_mbmr = CONFIG_SYS_MBMR & (~(MBMR_PTBE)); /* no refresh yet */
120 /* perform SDRAM initializsation sequence */
122 memctl->memc_mcr = 0x80802830; /* SDRAM bank 0 */
124 memctl->memc_mcr = 0x80802110; /* SDRAM bank 0 - execute twice */
127 memctl->memc_mbmr |= MBMR_PTBE; /* enable refresh */
132 * Check Bank 0 Memory Size for re-configuration
135 size = get_ram_size(SDRAM_BASE1_PRELIM, SDRAM_MAX_SIZE);
139 debug ("SDRAM Bank 0: %ld MB\n", size >> 20);
145 * Early board initalization.
147 int board_early_init_r(void)
149 /* setup the UPIOx */
150 out_8((u8 *)(CONFIG_SYS_PIGGY_BASE + 0x02), 0xc0);
151 out_8((u8 *)(CONFIG_SYS_PIGGY_BASE + 0x03), 0x35);
155 int hush_init_var (void)
161 #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
163 * update "memory" property in the blob
165 void ft_blob_update (void *blob, bd_t *bd)
167 ulong brg_data[1] = {0};
168 ulong memory_data[2] = {0};
169 ulong *flash_data = NULL;
170 ulong flash_reg[3] = {0};
175 memory_data[0] = cpu_to_be32 (bd->bi_memstart);
176 memory_data[1] = cpu_to_be32 (bd->bi_memsize);
177 fdt_set_node_and_value (blob, "/memory", "reg", memory_data,
178 sizeof (memory_data));
180 len = fdt_get_node_and_value (blob, "/localbus", "ranges",
181 (void *)&flash_data);
183 if (flash_data == NULL) {
184 printf ("%s: error /localbus/ranges entry\n", __FUNCTION__);
188 /* update Flash addr, size */
189 while ( i < (len / 4)) {
190 switch (flash_data[i]) {
192 info = flash_get_info(CONFIG_SYS_FLASH_BASE);
193 flash_data[i + 1] = 0;
194 flash_data[i + 2] = cpu_to_be32 (CONFIG_SYS_FLASH_BASE);
195 flash_data[i + 3] = cpu_to_be32 (info->size);
202 fdt_set_node_and_value (blob, "/localbus", "ranges", flash_data,
205 flash_reg[2] = cpu_to_be32 (bd->bi_flashsize);
206 fdt_set_node_and_value (blob, "/localbus/flash@0,0", "reg", flash_reg,
209 brg_data[0] = cpu_to_be32 (bd->bi_busfreq);
210 fdt_set_node_and_value (blob, "/soc/cpm", "brg-frequency", brg_data,
214 fdt_set_node_and_value (blob, "/soc/cpm/ethernet", "mac-address",
215 bd->bi_enetaddr, sizeof (u8) * 6);
218 void ft_board_setup(void *blob, bd_t *bd)
220 ft_cpu_setup (blob, bd);
221 ft_blob_update (blob, bd);
223 #endif /* defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) */
225 int i2c_soft_read_pin (void)
229 *(unsigned short *)(I2C_BASE_DIR) &= ~SDA_CONF;
231 val = *(unsigned char *)(I2C_BASE_PORT);
233 return ((val & SDA_BIT) == SDA_BIT);