5 * SPDX-License-Identifier: GPL-2.0+
13 /* ------------------------------------------------------------------------- */
15 static long int dram_size (long int, long int *, long int);
16 unsigned long flash_init (void);
18 /* ------------------------------------------------------------------------- */
20 #define _NOT_USED_ 0xFFFFCC25
22 const uint sdram_table[] = {
24 * Single Read. (Offset 00h in UPMA RAM)
26 0x0F03CC04, 0x00ACCC24, 0x1FF74C20, _NOT_USED_,
27 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
30 * Burst Read. (Offset 08h in UPMA RAM)
32 0x0F03CC04, 0x00ACCC24, 0x00FFCC20, 0x00FFCC20,
33 0x01FFCC20, 0x1FF74C20, _NOT_USED_, _NOT_USED_,
34 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
35 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
38 * Single Write. (Offset 18h in UPMA RAM)
40 0x0F03CC02, 0x00AC0C24, 0x1FF74C25, _NOT_USED_,
41 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
44 * Burst Write. (Offset 20h in UPMA RAM)
46 0x0F03CC00, 0x00AC0C20, 0x00FFFC20, 0x00FFFC22,
47 0x01FFFC24, 0x1FF74C25, _NOT_USED_, _NOT_USED_,
48 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
49 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
52 * Refresh. (Offset 30h in UPMA RAM)
53 * (Initialization code at 0x36)
55 0x0FF0CC24, 0xFFFFCC24, _NOT_USED_, _NOT_USED_,
56 _NOT_USED_, _NOT_USED_, 0xEFFB8C34, 0x0FF74C34,
57 0x0FFACCB4, 0x0FF5CC34, 0x0FFCC34, 0x0FFFCCB4,
60 * Exception. (Offset 3Ch in UPMA RAM)
62 0x0FEA8C34, 0x1FB54C34, 0xFFFFCC34, _NOT_USED_
65 /* ------------------------------------------------------------------------- */
69 * Check Board Identity:
76 int l = getenv_f("serial#", buf, sizeof(buf));
78 puts ("Board QUANTUM, Serial No: ");
80 for (i = 0; i < l; ++i) {
86 return (0); /* success */
89 /* ------------------------------------------------------------------------- */
91 phys_size_t initdram (int board_type)
93 volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
94 volatile memctl8xx_t *memctl = &immap->im_memctl;
97 upmconfig (UPMA, (uint *) sdram_table,
98 sizeof (sdram_table) / sizeof (uint));
100 /* Refresh clock prescalar */
101 memctl->memc_mptpr = CONFIG_SYS_MPTPR;
103 memctl->memc_mar = 0x00000088;
105 /* Map controller banks 1 to the SDRAM bank */
106 memctl->memc_or1 = CONFIG_SYS_OR1_PRELIM;
107 memctl->memc_br1 = CONFIG_SYS_BR1_PRELIM;
109 memctl->memc_mamr = CONFIG_SYS_MAMR_9COL & (~(MAMR_PTAE)); /* no refresh yet */
113 /* perform SDRAM initializsation sequence */
115 memctl->memc_mcr = 0x80002136; /* SDRAM bank 0 */
118 memctl->memc_mamr |= MAMR_PTAE; /* enable refresh */
122 /* Check Bank 0 Memory Size,
125 size9 = dram_size (CONFIG_SYS_MAMR_9COL, (long *) SDRAM_BASE_PRELIM,
130 memctl->memc_or1 = ((-size9) & 0xFFFF0000) | CONFIG_SYS_OR_TIMING_SDRAM;
136 /* ------------------------------------------------------------------------- */
139 * Check memory range for valid RAM. A simple memory test determines
140 * the actually available RAM size between addresses `base' and
141 * `base + maxsize'. Some (not all) hardware errors are detected:
142 * - short between address lines
143 * - short between data lines
146 static long int dram_size (long int mamr_value, long int *base,
149 volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
150 volatile memctl8xx_t *memctl = &immap->im_memctl;
151 volatile ulong *addr;
152 ulong cnt, val, size;
153 ulong save[32]; /* to make test non-destructive */
156 memctl->memc_mamr = mamr_value;
158 for (cnt = maxsize / sizeof (long); cnt > 0; cnt >>= 1) {
159 addr = (volatile ulong *)(base + cnt); /* pointer arith! */
165 /* write 0 to base address */
166 addr = (volatile ulong *)base;
170 /* check at base address */
171 if ((val = *addr) != 0) {
172 /* Restore the original data before leaving the function.
175 for (cnt = 1; cnt <= maxsize / sizeof (long); cnt <<= 1) {
176 addr = (volatile ulong *) base + cnt;
182 for (cnt = 1; cnt <= maxsize / sizeof (long); cnt <<= 1) {
183 addr = (volatile ulong *)(base + cnt); /* pointer arith! */
189 size = cnt * sizeof (long);
190 /* Restore the original data before returning
192 for (cnt <<= 1; cnt <= maxsize / sizeof (long);
194 addr = (volatile ulong *) base + cnt;
204 * Miscellaneous intialization
206 int misc_init_r (void)
208 char *fpga_data_str = getenv ("fpgadata");
209 char *fpga_size_str = getenv ("fpgasize");
213 volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
214 volatile memctl8xx_t *memctl = &immap->im_memctl;
217 /* Remap FLASH according to real size */
218 flash_size = flash_init ();
219 memctl->memc_or0 = CONFIG_SYS_OR_TIMING_FLASH | (-flash_size & 0xFFFF8000);
220 memctl->memc_br0 = (CONFIG_SYS_FLASH_BASE & BR_BA_MSK) | BR_MS_GPCM | BR_V;
222 if (fpga_data_str && fpga_size_str) {
223 fpga_data = (void *) simple_strtoul (fpga_data_str, NULL, 16);
224 fpga_size = simple_strtoul (fpga_size_str, NULL, 10);
226 status = fpga_boot (fpga_data, fpga_size);
228 printf ("\nFPGA: Booting failed ");
230 case ERROR_FPGA_PRG_INIT_LOW:
231 printf ("(Timeout: INIT not low after asserting PROGRAM*)\n ");
233 case ERROR_FPGA_PRG_INIT_HIGH:
234 printf ("(Timeout: INIT not high after deasserting PROGRAM*)\n ");
236 case ERROR_FPGA_PRG_DONE:
237 printf ("(Timeout: DONE not high after programming FPGA)\n ");