1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) Freescale Semiconductor, Inc. 2006.
13 #include <asm/mpc8349_pci.h>
16 #include <spd_sdram.h>
18 #if defined(CONFIG_OF_LIBFDT)
19 #include <linux/libfdt.h>
22 DECLARE_GLOBAL_DATA_PTR;
24 #ifndef CONFIG_SPD_EEPROM
25 /*************************************************************************
26 * fixed sdram init -- doesn't use serial presence detect.
27 ************************************************************************/
30 volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
31 /* The size of RAM, in bytes */
32 u32 ddr_size = CONFIG_SYS_DDR_SIZE << 20;
33 u32 ddr_size_log2 = __ilog2(ddr_size);
35 im->sysconf.ddrlaw[0].ar =
36 LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE);
37 im->sysconf.ddrlaw[0].bar = CONFIG_SYS_DDR_SDRAM_BASE & 0xfffff000;
39 #if ((CONFIG_SYS_DDR_SDRAM_BASE & 0x00FFFFFF) != 0)
40 #warning Chip select bounds is only configurable in 16MB increments
42 im->ddr.csbnds[0].csbnds =
43 ((CONFIG_SYS_DDR_SDRAM_BASE >> CSBNDS_SA_SHIFT) & CSBNDS_SA) |
44 (((CONFIG_SYS_DDR_SDRAM_BASE + ddr_size - 1) >>
45 CSBNDS_EA_SHIFT) & CSBNDS_EA);
46 im->ddr.cs_config[0] = CONFIG_SYS_DDR_CS0_CONFIG;
48 /* Only one CS for DDR */
49 im->ddr.cs_config[1] = 0;
50 im->ddr.cs_config[2] = 0;
51 im->ddr.cs_config[3] = 0;
53 debug("cs0_bnds = 0x%08x\n", im->ddr.csbnds[0].csbnds);
54 debug("cs0_config = 0x%08x\n", im->ddr.cs_config[0]);
56 debug("DDR:bar=0x%08x\n", im->sysconf.ddrlaw[0].bar);
57 debug("DDR:ar=0x%08x\n", im->sysconf.ddrlaw[0].ar);
59 im->ddr.timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
60 im->ddr.timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;/* Was "2 << TIMING_CFG2_WR_DATA_DELAY_SHIFT" */
61 im->ddr.sdram_cfg = SDRAM_CFG_SREN | SDRAM_CFG_SDRAM_TYPE_DDR1;
63 (0x0000 << SDRAM_MODE_ESD_SHIFT) | (0x0032 << SDRAM_MODE_SD_SHIFT);
64 im->ddr.sdram_interval =
65 (0x0410 << SDRAM_INTERVAL_REFINT_SHIFT) | (0x0100 <<
66 SDRAM_INTERVAL_BSTOPRE_SHIFT);
67 im->ddr.sdram_clk_cntl = CONFIG_SYS_DDR_SDRAM_CLK_CNTL;
71 im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
73 debug("DDR:timing_cfg_1=0x%08x\n", im->ddr.timing_cfg_1);
74 debug("DDR:timing_cfg_2=0x%08x\n", im->ddr.timing_cfg_2);
75 debug("DDR:sdram_mode=0x%08x\n", im->ddr.sdram_mode);
76 debug("DDR:sdram_interval=0x%08x\n", im->ddr.sdram_interval);
77 debug("DDR:sdram_cfg=0x%08x\n", im->ddr.sdram_cfg);
79 return CONFIG_SYS_DDR_SIZE;
85 * Initialize PCI Devices, report devices found
87 #ifndef CONFIG_PCI_PNP
88 static struct pci_config_table pci_mpc83xxmitx_config_table[] = {
96 pci_cfgfunc_config_device,
100 PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER}
106 volatile static struct pci_controller hose[] = {
108 #ifndef CONFIG_PCI_PNP
109 config_table:pci_mpc83xxmitx_config_table,
113 #ifndef CONFIG_PCI_PNP
114 config_table:pci_mpc83xxmitx_config_table,
118 #endif /* CONFIG_PCI */
122 volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
124 #ifdef CONFIG_DDR_ECC
125 volatile ddr83xx_t *ddr = &im->ddr;
128 if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im)
131 /* DDR SDRAM - Main SODIMM */
132 im->sysconf.ddrlaw[0].bar = CONFIG_SYS_DDR_BASE & LAWBAR_BAR;
133 #ifdef CONFIG_SPD_EEPROM
136 msize = fixed_sdram();
139 #ifdef CONFIG_DDR_ECC
140 if (ddr->sdram_cfg & SDRAM_CFG_ECC_EN)
141 /* Unlike every other board, on the 83xx spd_sdram() returns
142 megabytes instead of just bytes. That's why we need to
143 multiple by 1MB when calling ddr_enable_ecc(). */
144 ddr_enable_ecc(msize * 1048576);
147 /* return total bus RAM size(bytes) */
148 gd->ram_size = msize * 1024 * 1024;
155 #ifdef CONFIG_MPC8349ITX
156 puts("Board: Freescale MPC8349E-mITX\n");
158 puts("Board: Freescale MPC8349E-mITX-GP\n");
165 * Implement a work-around for a hardware problem with compact
168 * Program the UPM if compact flash is enabled.
170 int misc_init_f(void)
172 #ifdef CONFIG_VSC7385_ENET
173 volatile u32 *vsc7385_cpuctrl;
175 /* 0x1c0c0 is the VSC7385 CPU Control (CPUCTRL) Register. The power up
176 default of VSC7385 L1_IRQ and L2_IRQ requests are active high. That
177 means it is 0 when the IRQ is not active. This makes the wire-AND
178 logic always assert IRQ7 to CPU even if there is no request from the
179 switch. Since the compact flash and the switch share the same IRQ,
180 the Linux kernel will think that the compact flash is requesting irq
181 and get stuck when it tries to clear the IRQ. Thus we need to set
182 the L2_IRQ0 and L2_IRQ1 to active low.
184 The following code sets the L1_IRQ and L2_IRQ polarity to active low.
185 Without this code, compact flash will not work in Linux because
186 unlike U-Boot, Linux uses the IRQ, so this code is necessary if we
187 don't enable compact flash for U-Boot.
190 vsc7385_cpuctrl = (volatile u32 *)(CONFIG_SYS_VSC7385_BASE + 0x1c0c0);
191 *vsc7385_cpuctrl |= 0x0c;
194 #ifdef CONFIG_COMPACT_FLASH
195 /* UPM Table Configuration Code */
196 static uint UPMATable[] = {
197 0xcffffc00, 0x0fffff00, 0x0fafff00, 0x0fafff00,
198 0x0faffd00, 0x0faffc04, 0x0ffffc00, 0x3ffffc01,
199 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
200 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
201 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfff7fc00,
202 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
203 0xcffffc00, 0x0fffff00, 0x0ff3ff00, 0x0ff3ff00,
204 0x0ff3fe00, 0x0ffffc00, 0x3ffffc05, 0xfffffc00,
205 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
206 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
207 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
208 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
209 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
210 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
211 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
212 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01
214 volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
216 set_lbc_br(3, CONFIG_SYS_BR3_PRELIM);
217 set_lbc_or(3, CONFIG_SYS_OR3_PRELIM);
219 /* Program the MAMR. RFEN=0, OP=00, UWPL=1, AM=000, DS=01, G0CL=000,
220 GPL4=0, RLF=0001, WLF=0001, TLF=0001, MAD=000000
222 immap->im_lbc.mamr = 0x08404440;
224 upmconfig(0, UPMATable, sizeof(UPMATable) / sizeof(UPMATable[0]));
226 puts("UPMA: Configured for compact flash\n");
233 * Miscellaneous late-boot configurations
235 * Make sure the EEPROM has the HRCW correctly programmed.
236 * Make sure the RTC is correctly programmed.
238 * The MPC8349E-mITX can be configured to load the HRCW from
239 * EEPROM instead of flash. This is controlled via jumpers
240 * LGPL0, 1, and 3. Normally, these jumpers are set to 000 (all
241 * jumpered), but if they're set to 001 or 010, then the HRCW is
242 * read from the "I2C EEPROM".
244 * This function makes sure that the I2C EEPROM is programmed
247 * If a VSC7385 microcode image is present, then upload it.
249 int misc_init_r(void)
253 #if defined(CONFIG_SYS_I2C)
254 unsigned int orig_bus = i2c_get_bus_num();
257 #ifdef CONFIG_SYS_I2C_RTC_ADDR
261 #ifdef CONFIG_SYS_I2C_EEPROM_ADDR
262 static u8 eeprom_data[] = /* HRCW data */
264 0xAA, 0x55, 0xAA, /* Preamble */
265 0x7C, /* ACS=0, BYTE_EN=1111, CONT=1 */
266 0x02, 0x40, /* RCWL ADDR=0x0_0900 */
267 (CONFIG_SYS_HRCW_LOW >> 24) & 0xFF,
268 (CONFIG_SYS_HRCW_LOW >> 16) & 0xFF,
269 (CONFIG_SYS_HRCW_LOW >> 8) & 0xFF,
270 CONFIG_SYS_HRCW_LOW & 0xFF,
271 0x7C, /* ACS=0, BYTE_EN=1111, CONT=1 */
272 0x02, 0x41, /* RCWH ADDR=0x0_0904 */
273 (CONFIG_SYS_HRCW_HIGH >> 24) & 0xFF,
274 (CONFIG_SYS_HRCW_HIGH >> 16) & 0xFF,
275 (CONFIG_SYS_HRCW_HIGH >> 8) & 0xFF,
276 CONFIG_SYS_HRCW_HIGH & 0xFF
279 u8 data[sizeof(eeprom_data)];
282 printf("Board revision: ");
284 if (i2c_read(CONFIG_SYS_I2C_8574A_ADDR2, 0, 0, &i2c_data, sizeof(i2c_data)) == 0)
285 printf("%u.%u (PCF8475A)\n", (i2c_data & 0x02) >> 1, i2c_data & 0x01);
286 else if (i2c_read(CONFIG_SYS_I2C_8574_ADDR2, 0, 0, &i2c_data, sizeof(i2c_data)) == 0)
287 printf("%u.%u (PCF8475)\n", (i2c_data & 0x02) >> 1, i2c_data & 0x01);
293 #ifdef CONFIG_SYS_I2C_EEPROM_ADDR
296 if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 2, data, sizeof(data)) == 0) {
297 if (memcmp(data, eeprom_data, sizeof(data)) != 0) {
299 (CONFIG_SYS_I2C_EEPROM_ADDR, 0, 2, eeprom_data,
300 sizeof(eeprom_data)) != 0) {
301 puts("Failure writing the HRCW to EEPROM via I2C.\n");
306 puts("Failure reading the HRCW from EEPROM via I2C.\n");
311 #ifdef CONFIG_SYS_I2C_RTC_ADDR
314 if (i2c_read(CONFIG_SYS_I2C_RTC_ADDR, 0, 1, ds1339_data, sizeof(ds1339_data))
317 /* Work-around for MPC8349E-mITX bug #13601.
318 If the RTC does not contain valid register values, the DS1339
319 Linux driver will not work.
322 /* Make sure status register bits 6-2 are zero */
323 ds1339_data[0x0f] &= ~0x7c;
325 /* Check for a valid day register value */
326 ds1339_data[0x03] &= ~0xf8;
327 if (ds1339_data[0x03] == 0) {
328 ds1339_data[0x03] = 1;
331 /* Check for a valid date register value */
332 ds1339_data[0x04] &= ~0xc0;
333 if ((ds1339_data[0x04] == 0) ||
334 ((ds1339_data[0x04] & 0x0f) > 9) ||
335 (ds1339_data[0x04] >= 0x32)) {
336 ds1339_data[0x04] = 1;
339 /* Check for a valid month register value */
340 ds1339_data[0x05] &= ~0x60;
342 if ((ds1339_data[0x05] == 0) ||
343 ((ds1339_data[0x05] & 0x0f) > 9) ||
344 ((ds1339_data[0x05] >= 0x13)
345 && (ds1339_data[0x05] <= 0x19))) {
346 ds1339_data[0x05] = 1;
349 /* Enable Oscillator and rate select */
350 ds1339_data[0x0e] = 0x1c;
352 /* Work-around for MPC8349E-mITX bug #13330.
353 Ensure that the RTC control register contains the value 0x1c.
354 This affects SATA performance.
358 (CONFIG_SYS_I2C_RTC_ADDR, 0, 1, ds1339_data,
359 sizeof(ds1339_data))) {
360 puts("Failure writing to the RTC via I2C.\n");
364 puts("Failure reading from the RTC via I2C.\n");
369 i2c_set_bus_num(orig_bus);
372 #ifdef CONFIG_VSC7385_IMAGE
373 if (vsc7385_upload_firmware((void *) CONFIG_VSC7385_IMAGE,
374 CONFIG_VSC7385_IMAGE_SIZE)) {
375 puts("Failure uploading VSC7385 microcode.\n");
383 #if defined(CONFIG_OF_BOARD_SETUP)
384 int ft_board_setup(void *blob, bd_t *bd)
386 ft_cpu_setup(blob, bd);
388 ft_pci_setup(blob, bd);