3 * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
5 * SPDX-License-Identifier: GPL-2.0+
9 * evb64260.c - main board support/init for the Galileo Eval board.
14 #include <galileo/memory.h>
15 #include <galileo/pci.h>
16 #include <galileo/gt64260R.h>
19 #include <linux/compiler.h>
27 DECLARE_GLOBAL_DATA_PTR;
30 extern void zuma_mbox_init(void);
42 /* ------------------------------------------------------------------------- */
44 /* this is the current GT register space location */
45 /* it starts at CONFIG_SYS_DFL_GT_REGS but moves later to CONFIG_SYS_GT_REGS */
47 /* Unfortunately, we cant change it while we are in flash, so we initialize it
48 * to the "final" value. This means that any debug_led calls before
49 * board_early_init_f wont work right (like in cpu_init_f).
50 * See also my_remap_gt_regs below. (NTL)
53 unsigned int INTERNAL_REG_BASE_ADDR = CONFIG_SYS_GT_REGS;
55 /* ------------------------------------------------------------------------- */
58 * This is a version of the GT register space remapping function that
59 * doesn't touch globals (meaning, it's ok to run from flash.)
61 * Unfortunately, this has the side effect that a writable
62 * INTERNAL_REG_BASE_ADDR is impossible. Oh well.
66 my_remap_gt_regs(u32 cur_loc, u32 new_loc)
70 /* check and see if it's already moved */
71 temp = in_le32((u32 *)(new_loc + INTERNAL_SPACE_DECODE));
72 if ((temp & 0xffff) == new_loc >> 20)
75 temp = (in_le32((u32 *)(cur_loc + INTERNAL_SPACE_DECODE)) &
76 0xffff0000) | (new_loc >> 20);
78 out_le32((u32 *)(cur_loc + INTERNAL_SPACE_DECODE), temp);
80 while (GTREGREAD(INTERNAL_SPACE_DECODE) != temp);
86 /* move PCI stuff out of the way - NTL */
88 pciMapSpace(PCI_HOST0, PCI_REGION0, CONFIG_SYS_PCI0_0_MEM_SPACE,
89 CONFIG_SYS_PCI0_0_MEM_SPACE, CONFIG_SYS_PCI0_MEM_SIZE);
91 pciMapSpace(PCI_HOST0, PCI_REGION1, 0, 0, 0);
92 pciMapSpace(PCI_HOST0, PCI_REGION2, 0, 0, 0);
93 pciMapSpace(PCI_HOST0, PCI_REGION3, 0, 0, 0);
95 pciMapSpace(PCI_HOST0, PCI_IO, CONFIG_SYS_PCI0_IO_SPACE_PCI,
96 CONFIG_SYS_PCI0_IO_SPACE, CONFIG_SYS_PCI0_IO_SIZE);
99 pciMapSpace(PCI_HOST1, PCI_REGION0, CONFIG_SYS_PCI1_0_MEM_SPACE,
100 CONFIG_SYS_PCI1_0_MEM_SPACE, CONFIG_SYS_PCI1_MEM_SIZE);
102 pciMapSpace(PCI_HOST1, PCI_REGION1, 0, 0, 0);
103 pciMapSpace(PCI_HOST1, PCI_REGION2, 0, 0, 0);
104 pciMapSpace(PCI_HOST1, PCI_REGION3, 0, 0, 0);
106 pciMapSpace(PCI_HOST1, PCI_IO, CONFIG_SYS_PCI1_IO_SPACE_PCI,
107 CONFIG_SYS_PCI1_IO_SPACE, CONFIG_SYS_PCI1_IO_SIZE);
109 /* PCI interface settings */
110 GT_REG_WRITE(PCI_0TIMEOUT_RETRY, 0xffff);
111 GT_REG_WRITE(PCI_1TIMEOUT_RETRY, 0xffff);
112 GT_REG_WRITE(PCI_0BASE_ADDRESS_REGISTERS_ENABLE, 0xfffff80e);
113 GT_REG_WRITE(PCI_1BASE_ADDRESS_REGISTERS_ENABLE, 0xfffff80e);
118 /* Setup CPU interface paramaters */
122 cpu_t cpu = get_cpu_type();
125 /* cpu configuration register */
126 tmp = GTREGREAD(CPU_CONFIGURATION);
128 /* set the AACK delay bit
130 tmp |= CPU_CONF_AACK_DELAY;
131 tmp &= ~CPU_CONF_AACK_DELAY_2; /* New RGF */
133 /* Galileo claims this is necessary for all busses >= 100 MHz */
134 tmp |= CPU_CONF_FAST_CLK;
136 if (cpu == CPU_750CX) {
137 tmp &= ~CPU_CONF_DP_VALID; /* Safer, needed for CXe. RGF */
138 tmp &= ~CPU_CONF_AP_VALID;
140 tmp |= CPU_CONF_DP_VALID;
141 tmp |= CPU_CONF_AP_VALID;
144 /* this only works with the MPX bus */
145 tmp &= ~CPU_CONF_RD_OOO; /* Safer RGF */
146 tmp |= CPU_CONF_PIPELINE;
147 tmp |= CPU_CONF_TA_DELAY;
149 GT_REG_WRITE(CPU_CONFIGURATION, tmp);
151 /* CPU master control register */
152 tmp = GTREGREAD(CPU_MASTER_CONTROL);
154 tmp |= CPU_MAST_CTL_ARB_EN;
156 if ((cpu == CPU_7400) ||
160 tmp |= CPU_MAST_CTL_CLEAN_BLK;
161 tmp |= CPU_MAST_CTL_FLUSH_BLK;
164 /* cleanblock must be cleared for CPUs
165 * that do not support this command
167 tmp &= ~CPU_MAST_CTL_CLEAN_BLK;
168 tmp &= ~CPU_MAST_CTL_FLUSH_BLK;
170 GT_REG_WRITE(CPU_MASTER_CONTROL, tmp);
174 * board_early_init_f.
176 * set up gal. device mappings, etc.
178 int board_early_init_f (void)
183 * set up the GT the way the kernel wants it
184 * the call to move the GT register space will obviously
185 * fail if it has already been done, but we're going to assume
186 * that if it's not at the power-on location, it's where we put
187 * it last time. (huber)
189 my_remap_gt_regs(CONFIG_SYS_DFL_GT_REGS, CONFIG_SYS_GT_REGS);
193 /* mask all external interrupt sources */
194 GT_REG_WRITE(CPU_INTERRUPT_MASK_REGISTER_LOW, 0);
195 GT_REG_WRITE(CPU_INTERRUPT_MASK_REGISTER_HIGH, 0);
196 GT_REG_WRITE(PCI_0INTERRUPT_CAUSE_MASK_REGISTER_LOW, 0);
197 GT_REG_WRITE(PCI_0INTERRUPT_CAUSE_MASK_REGISTER_HIGH, 0);
198 GT_REG_WRITE(PCI_1INTERRUPT_CAUSE_MASK_REGISTER_LOW, 0);
199 GT_REG_WRITE(PCI_1INTERRUPT_CAUSE_MASK_REGISTER_HIGH, 0);
200 GT_REG_WRITE(CPU_INT_0_MASK, 0);
201 GT_REG_WRITE(CPU_INT_1_MASK, 0);
202 GT_REG_WRITE(CPU_INT_2_MASK, 0);
203 GT_REG_WRITE(CPU_INT_3_MASK, 0);
205 /* now, onto the configuration */
206 GT_REG_WRITE(SDRAM_CONFIGURATION, CONFIG_SYS_SDRAM_CONFIG);
208 /* ----- DEVICE BUS SETTINGS ------ */
224 * the dual 7450 module requires burst access to the boot
225 * device, so the serial rom copies the boot device to the
226 * on-board sram on the eval board, and updates the correct
227 * registers to boot from the sram. (device0)
229 #if defined(CONFIG_ZUMA_V2) || defined(CONFIG_P3G4)
230 /* Zuma has no SRAM */
233 if (memoryGetDeviceBaseAddress(DEVICE0) && 0xfff00000 == CONFIG_SYS_MONITOR_BASE)
237 memoryMapDeviceSpace(DEVICE0, CONFIG_SYS_DEV0_SPACE, CONFIG_SYS_DEV0_SIZE);
239 memoryMapDeviceSpace(DEVICE1, CONFIG_SYS_DEV1_SPACE, CONFIG_SYS_DEV1_SIZE);
240 memoryMapDeviceSpace(DEVICE2, CONFIG_SYS_DEV2_SPACE, CONFIG_SYS_DEV2_SIZE);
241 memoryMapDeviceSpace(DEVICE3, CONFIG_SYS_DEV3_SPACE, CONFIG_SYS_DEV3_SIZE);
243 /* configure device timing */
244 #ifdef CONFIG_SYS_DEV0_PAR
246 GT_REG_WRITE(DEVICE_BANK0PARAMETERS, CONFIG_SYS_DEV0_PAR);
249 #ifdef CONFIG_SYS_DEV1_PAR
250 GT_REG_WRITE(DEVICE_BANK1PARAMETERS, CONFIG_SYS_DEV1_PAR);
252 #ifdef CONFIG_SYS_DEV2_PAR
253 GT_REG_WRITE(DEVICE_BANK2PARAMETERS, CONFIG_SYS_DEV2_PAR);
256 #ifdef CONFIG_EVB64260
257 #ifdef CONFIG_SYS_32BIT_BOOT_PAR
258 /* detect if we are booting from the 32 bit flash */
259 if (GTREGREAD(DEVICE_BOOT_BANK_PARAMETERS) & (0x3 << 20)) {
260 /* 32 bit boot flash */
261 GT_REG_WRITE(DEVICE_BANK3PARAMETERS, CONFIG_SYS_8BIT_BOOT_PAR);
262 GT_REG_WRITE(DEVICE_BOOT_BANK_PARAMETERS, CONFIG_SYS_32BIT_BOOT_PAR);
264 /* 8 bit boot flash */
265 GT_REG_WRITE(DEVICE_BANK3PARAMETERS, CONFIG_SYS_32BIT_BOOT_PAR);
266 GT_REG_WRITE(DEVICE_BOOT_BANK_PARAMETERS, CONFIG_SYS_8BIT_BOOT_PAR);
269 /* 8 bit boot flash only */
270 GT_REG_WRITE(DEVICE_BOOT_BANK_PARAMETERS, CONFIG_SYS_8BIT_BOOT_PAR);
272 #else /* CONFIG_EVB64260 not defined */
273 /* We are booting from 16-bit flash.
275 GT_REG_WRITE(DEVICE_BOOT_BANK_PARAMETERS, CONFIG_SYS_16BIT_BOOT_PAR);
281 GT_REG_WRITE(MPP_CONTROL0, CONFIG_SYS_MPP_CONTROL_0);
282 GT_REG_WRITE(MPP_CONTROL1, CONFIG_SYS_MPP_CONTROL_1);
283 GT_REG_WRITE(MPP_CONTROL2, CONFIG_SYS_MPP_CONTROL_2);
284 GT_REG_WRITE(MPP_CONTROL3, CONFIG_SYS_MPP_CONTROL_3);
286 GT_REG_WRITE(GPP_LEVEL_CONTROL, CONFIG_SYS_GPP_LEVEL_CONTROL);
287 GT_REG_WRITE(SERIAL_PORT_MULTIPLEX, CONFIG_SYS_SERIAL_PORT_MUX);
292 /* various things to do after relocation */
294 int misc_init_r (void)
305 #ifdef CONFIG_ZUMA_V2
312 after_reloc(ulong dest_addr)
314 /* check to see if we booted from the sram. If so, move things
315 * back to the way they should be. (we're running from main
316 * memory at this point now */
318 if (memoryGetDeviceBaseAddress(DEVICE0) == CONFIG_SYS_MONITOR_BASE) {
319 memoryMapDeviceSpace(DEVICE0, CONFIG_SYS_DEV0_SPACE, CONFIG_SYS_DEV0_SIZE);
320 memoryMapDeviceSpace(BOOT_DEVICE, CONFIG_SYS_FLASH_BASE, _1M);
323 /* now, jump to the main U-Boot board init code */
324 board_init_r ((gd_t *)gd, dest_addr);
329 /* ------------------------------------------------------------------------- */
332 * Check Board Identity:
338 puts ("Board: " CONFIG_SYS_BOARD_NAME "\n");
342 /* utility functions */
344 debug_led(int led, int mode)
346 #if !defined(CONFIG_ZUMA_V2) && !defined(CONFIG_P3G4)
347 volatile int *addr = NULL;
348 __maybe_unused int dummy;
353 addr = (int *)((unsigned int)CONFIG_SYS_DEV1_SPACE | 0x08000);
357 addr = (int *)((unsigned int)CONFIG_SYS_DEV1_SPACE | 0x0c000);
361 addr = (int *)((unsigned int)CONFIG_SYS_DEV1_SPACE | 0x10000);
364 } else if (mode == 0) {
367 addr = (int *)((unsigned int)CONFIG_SYS_DEV1_SPACE | 0x14000);
371 addr = (int *)((unsigned int)CONFIG_SYS_DEV1_SPACE | 0x18000);
375 addr = (int *)((unsigned int)CONFIG_SYS_DEV1_SPACE | 0x1c000);
381 #endif /* CONFIG_ZUMA_V2 */
385 display_mem_map(void)
388 unsigned int base,size,width;
391 for(i=0;i<=BANK3;i++) {
392 base = memoryGetBankBaseAddress(i);
393 size = memoryGetBankSize(i);
396 printf("BANK%d: base - 0x%08x\tsize - %dM bytes\n",i,base,size>>20);
400 /* CPU's PCI windows */
401 for(i=0;i<=PCI_HOST1;i++) {
402 printf("\nCPU's PCI %d windows\n", i);
403 base=pciGetSpaceBase(i,PCI_IO);
404 size=pciGetSpaceSize(i,PCI_IO);
405 printf(" IO: base - 0x%08x\tsize - %dM bytes\n",base,size>>20);
406 for(j=0;j<=PCI_REGION3;j++) {
407 base = pciGetSpaceBase(i,j);
408 size = pciGetSpaceSize(i,j);
409 printf("MEMORY %d: base - 0x%08x\tsize - %dM bytes\n",j,base,
415 printf("\nDEVICES\n");
416 for(i=0;i<=DEVICE3;i++) {
417 base = memoryGetDeviceBaseAddress(i);
418 size = memoryGetDeviceSize(i);
419 width= memoryGetDeviceWidth(i) * 8;
420 printf("DEV %d: base - 0x%08x\tsize - %dM bytes\twidth - %d bits\n",
421 i, base, size>>20, width);
425 base = memoryGetDeviceBaseAddress(BOOT_DEVICE); /* Boot */
426 size = memoryGetDeviceSize(BOOT_DEVICE);
427 width= memoryGetDeviceWidth(BOOT_DEVICE) * 8;
428 printf(" BOOT: base - 0x%08x\tsize - %dM bytes\twidth - %d bits\n",
429 base, size>>20, width);
432 int board_eth_init(bd_t *bis)
434 gt6426x_eth_initialize(bis);