3 * Heiko Schocher, DENX Software Engineering, hs@denx.de.
6 * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
8 * See file CREDITS for list of people who contributed to this
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
30 #include <asm/processor.h>
35 /* Settings Icecube */
36 #define SDRAM_MODE 0x00CD0000
37 #define SDRAM_CONTROL 0x504F0000
38 #define SDRAM_CONFIG1 0xD2322800
39 #define SDRAM_CONFIG2 0x8AD70000
41 /*Settings Jupiter UB 1.0.0 */
42 #define SDRAM_MODE 0x008D0000
43 #define SDRAM_CONTROL 0xD04F0000
44 #define SDRAM_CONFIG1 0xf7277f00
45 #define SDRAM_CONFIG2 0x88b70004
49 static void sdram_start (int hi_addr)
51 long hi_addr_bit = hi_addr ? 0x01000000 : 0;
53 /* unlock mode register */
54 *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000000 | hi_addr_bit;
55 __asm__ volatile ("sync");
57 /* precharge all banks */
58 *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit;
59 __asm__ volatile ("sync");
62 /* set mode register: extended mode */
63 *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_EMODE;
64 __asm__ volatile ("sync");
66 /* set mode register: reset DLL */
67 *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE | 0x04000000;
68 __asm__ volatile ("sync");
71 /* precharge all banks */
72 *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit;
73 __asm__ volatile ("sync");
76 *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000004 | hi_addr_bit;
77 __asm__ volatile ("sync");
79 /* set mode register */
80 *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE;
81 __asm__ volatile ("sync");
83 /* normal operation */
84 *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | hi_addr_bit;
85 __asm__ volatile ("sync");
90 * ATTENTION: Although partially referenced initdram does NOT make real use
91 * use of CFG_SDRAM_BASE. The code does not work if CFG_SDRAM_BASE
92 * is something else than 0x00000000.
95 long int initdram (int board_type)
104 /* setup SDRAM chip selects */
105 *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001e;/* 2G at 0x0 */
106 *(vu_long *)MPC5XXX_SDRAM_CS1CFG = 0x80000000;/* disabled */
107 __asm__ volatile ("sync");
109 /* setup config registers */
110 *(vu_long *)MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1;
111 *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2;
112 __asm__ volatile ("sync");
116 *(vu_long *)MPC5XXX_CDM_PORCFG = SDRAM_TAPDELAY;
117 __asm__ volatile ("sync");
120 /* find RAM size using SDRAM CS0 only */
122 test1 = get_ram_size((long *)CFG_SDRAM_BASE, 0x80000000);
124 test2 = get_ram_size((long *)CFG_SDRAM_BASE, 0x80000000);
132 /* memory smaller than 1MB is impossible */
133 if (dramsize < (1 << 20)) {
137 /* set SDRAM CS0 size according to the amount of RAM found */
139 *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x13 + __builtin_ffs(dramsize >> 20) - 1;
141 *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0; /* disabled */
144 /* let SDRAM CS1 start right after CS0 */
145 *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize + 0x0000001e;/* 2G */
147 /* find RAM size using SDRAM CS1 only */
150 test2 = test1 = get_ram_size((long *)(CFG_SDRAM_BASE + dramsize), 0x80000000);
153 test2 = get_ram_size((long *)(CFG_SDRAM_BASE + dramsize), 0x80000000);
162 /* memory smaller than 1MB is impossible */
163 if (dramsize2 < (1 << 20)) {
167 /* set SDRAM CS1 size according to the amount of RAM found */
169 *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize
170 | (0x13 + __builtin_ffs(dramsize2 >> 20) - 1);
172 *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize; /* disabled */
175 #else /* CFG_RAMBOOT */
177 /* retrieve size of memory connected to SDRAM CS0 */
178 dramsize = *(vu_long *)MPC5XXX_SDRAM_CS0CFG & 0xFF;
179 if (dramsize >= 0x13) {
180 dramsize = (1 << (dramsize - 0x13)) << 20;
185 /* retrieve size of memory connected to SDRAM CS1 */
186 dramsize2 = *(vu_long *)MPC5XXX_SDRAM_CS1CFG & 0xFF;
187 if (dramsize2 >= 0x13) {
188 dramsize2 = (1 << (dramsize2 - 0x13)) << 20;
193 #endif /* CFG_RAMBOOT */
196 * On MPC5200B we need to set the special configuration delay in the
197 * DDR controller. Please refer to Freescale's AN3221 "MPC5200B SDRAM
198 * Initialization and Configuration", 3.3.1 SDelay--MBAR + 0x0190:
200 * "The SDelay should be written to a value of 0x00000004. It is
201 * required to account for changes caused by normal wafer processing
206 if ((SVR_MJREV(svr) >= 2) &&
207 (PVR_MAJ(pvr) == 1) && (PVR_MIN(pvr) == 4)) {
209 *(vu_long *)MPC5XXX_SDRAM_SDELAY = 0x04;
210 __asm__ volatile ("sync");
213 return dramsize + dramsize2;
216 int checkboard (void)
218 puts ("Board: Sauter (Jupiter)\n");
222 void flash_preinit(void)
225 * Now, when we are in RAM, enable flash write
226 * access for detection process.
227 * Note that CS_BOOT cannot be cleared when
228 * executing in flash.
230 #if defined(CONFIG_MGT5100)
231 *(vu_long *)MPC5XXX_ADDECR &= ~(1 << 25); /* disable CS_BOOT */
232 *(vu_long *)MPC5XXX_ADDECR |= (1 << 16); /* enable CS0 */
234 *(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */
237 int board_early_init_r (void)
243 void flash_afterinit(ulong size)
245 if (size == 0x1000000) { /* adjust mapping */
246 *(vu_long *)MPC5XXX_BOOTCS_START = *(vu_long *)MPC5XXX_CS0_START =
247 START_REG(CFG_BOOTCS_START | size);
248 *(vu_long *)MPC5XXX_BOOTCS_STOP = *(vu_long *)MPC5XXX_CS0_STOP =
249 STOP_REG(CFG_BOOTCS_START | size, size);
251 #if defined(CONFIG_MPC5200)
252 *(vu_long *)MPC5XXX_ADDECR &= ~(1 << 25); /* disable CS_BOOT */
253 *(vu_long *)MPC5XXX_ADDECR |= (1 << 16); /* enable CS0 */
257 int update_flash_size (int flash_size)
259 flash_afterinit (flash_size);
263 int board_early_init_f (void)
265 *(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */
270 static struct pci_controller hose;
272 extern void pci_mpc5xxx_init(struct pci_controller *);
274 void pci_init_board(void)
276 pci_mpc5xxx_init(&hose);
280 #if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_RESET)
282 void init_ide_reset (void)
284 debug ("init_ide_reset\n");
286 /* Configure PSC1_4 as GPIO output for ATA reset */
287 *(vu_long *) MPC5XXX_WU_GPIO_ENABLE |= GPIO_PSC1_4;
288 *(vu_long *) MPC5XXX_WU_GPIO_DIR |= GPIO_PSC1_4;
290 *(vu_long *) MPC5XXX_WU_GPIO_DATA_O |= GPIO_PSC1_4;
293 void ide_set_reset (int idereset)
295 debug ("ide_reset(%d)\n", idereset);
298 *(vu_long *) MPC5XXX_WU_GPIO_DATA_O &= ~GPIO_PSC1_4;
299 /* Make a delay. MPC5200 spec says 25 usec min */
302 *(vu_long *) MPC5XXX_WU_GPIO_DATA_O |= GPIO_PSC1_4;
307 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
309 ft_board_setup(void *blob, bd_t *bd)
311 ft_cpu_setup(blob, bd);