2 * (C) Copyright 2009 Wolfgang Denk <wd@denx.de>
3 * (C) Copyright 2009 Dave Srl www.dave.eu
4 * (C) Copyright 2009 Stefan Roese <sr@denx.de>
6 * See file CREDITS for list of people who contributed to this
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 #include <asm/bitops.h>
30 #include <asm/processor.h>
31 #include <fdt_support.h>
33 DECLARE_GLOBAL_DATA_PTR;
36 #define SCCR1_CLOCKS_EN (CLOCK_SCCR1_CFG_EN | \
37 CLOCK_SCCR1_LPC_EN | \
38 CLOCK_SCCR1_PSC_EN(CONFIG_PSC_CONSOLE) | \
39 CLOCK_SCCR1_PSCFIFO_EN | \
40 CLOCK_SCCR1_DDR_EN | \
41 CLOCK_SCCR1_FEC_EN | \
42 CLOCK_SCCR1_NFC_EN | \
43 CLOCK_SCCR1_PCI_EN | \
46 #define SCCR2_CLOCKS_EN (CLOCK_SCCR2_MEM_EN | \
49 #define CSAW_START(start) ((start) & 0xFFFF0000)
50 #define CSAW_STOP(start, size) (((start) + (size) - 1) >> 16)
52 int eeprom_write_enable(unsigned dev_addr, int state)
54 volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
56 if (dev_addr != CONFIG_SYS_I2C_EEPROM_ADDR)
60 setbits_be32(&im->gpio.gpdat, 0x00100000);
62 clrbits_be32(&im->gpio.gpdat, 0x00100000);
68 * According to MPC5121e RM, configuring local access windows should
69 * be followed by a dummy read of the config register that was
70 * modified last and an isync.
72 static inline void sync_law(volatile void *addr)
75 __asm__ __volatile__ ("isync");
78 int board_early_init_f(void)
80 volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
85 * Initialize Local Window for NOR FLASH access
87 out_be32(&im->sysconf.lpcs0aw,
88 CSAW_START(CONFIG_SYS_FLASH_BASE) |
89 CSAW_STOP(CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_SIZE));
90 sync_law(&im->sysconf.lpcs0aw);
93 * Initialize Local Window for boot access
95 out_be32(&im->sysconf.lpbaw,
96 CSAW_START(0xffb00000) | CSAW_STOP(0xffb00000, 0x00010000));
97 sync_law(&im->sysconf.lpbaw);
100 * Initialize Local Window for VPC3 access
102 out_be32(&im->sysconf.lpcs1aw,
103 CSAW_START(CONFIG_SYS_VPC3_BASE) |
104 CSAW_STOP(CONFIG_SYS_VPC3_BASE, CONFIG_SYS_VPC3_SIZE));
105 sync_law(&im->sysconf.lpcs1aw);
108 * Configure Flash Speed
110 out_be32(&im->lpc.cs_cfg[0], CONFIG_SYS_CS0_CFG);
113 * Configure VPC3 Speed
115 out_be32(&im->lpc.cs_cfg[1], CONFIG_SYS_CS1_CFG);
117 spridr = in_be32(&im->sysconf.spridr);
118 if (SVR_MJREV(spridr) >= 2)
119 out_be32(&im->lpc.altr, CONFIG_SYS_CS_ALETIMING);
124 out_be32(&im->clk.sccr[0], SCCR1_CLOCKS_EN);
125 out_be32(&im->clk.sccr[1], SCCR2_CLOCKS_EN);
126 #if defined(CONFIG_IIM) || defined(CONFIG_CMD_FUSE)
127 setbits_be32(&im->clk.sccr[1], CLOCK_SCCR2_IIM_EN);
131 * Configure MSCAN clocks
133 for (i=0; i<4; ++i) {
134 out_be32(&im->clk.msccr[i], 0x00300000);
135 out_be32(&im->clk.msccr[i], 0x00310000);
141 clrbits_be32(&im->gpio.gpodr, 0x000000e0);
142 clrbits_be32(&im->gpio.gpdir, 0x00ef0000);
143 setbits_be32(&im->gpio.gpdir, 0x001000e0);
144 setbits_be32(&im->gpio.gpdat, 0x00100000);
151 * The board doesn't use memory modules that have serial presence
152 * detect or similar mechanism for discovery of the DRAM settings
154 long int fixed_sdram(void)
156 volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
157 u32 msize = CONFIG_SYS_DDR_SIZE * 1024 * 1024;
158 u32 msize_log2 = __ilog2(msize);
161 /* Initialize IO Control */
162 out_be32(&im->io_ctrl.io_control_mem, IOCTRL_MUX_DDR);
164 /* Initialize DDR Local Window */
165 out_be32(&im->sysconf.ddrlaw.bar, CONFIG_SYS_DDR_BASE & 0xFFFFF000);
166 out_be32(&im->sysconf.ddrlaw.ar, msize_log2 - 1);
167 sync_law(&im->sysconf.ddrlaw.ar);
170 out_be32(&im->mddrc.ddr_sys_config, CONFIG_SYS_MDDRC_SYS_CFG_EN);
172 /* Initialize DDR Priority Manager */
173 out_be32(&im->mddrc.prioman_config1, CONFIG_SYS_MDDRCGRP_PM_CFG1);
174 out_be32(&im->mddrc.prioman_config2, CONFIG_SYS_MDDRCGRP_PM_CFG2);
175 out_be32(&im->mddrc.hiprio_config, CONFIG_SYS_MDDRCGRP_HIPRIO_CFG);
176 out_be32(&im->mddrc.lut_table0_main_upper, CONFIG_SYS_MDDRCGRP_LUT0_MU);
177 out_be32(&im->mddrc.lut_table0_main_lower, CONFIG_SYS_MDDRCGRP_LUT0_ML);
178 out_be32(&im->mddrc.lut_table1_main_upper, CONFIG_SYS_MDDRCGRP_LUT1_MU);
179 out_be32(&im->mddrc.lut_table1_main_lower, CONFIG_SYS_MDDRCGRP_LUT1_ML);
180 out_be32(&im->mddrc.lut_table2_main_upper, CONFIG_SYS_MDDRCGRP_LUT2_MU);
181 out_be32(&im->mddrc.lut_table2_main_lower, CONFIG_SYS_MDDRCGRP_LUT2_ML);
182 out_be32(&im->mddrc.lut_table3_main_upper, CONFIG_SYS_MDDRCGRP_LUT3_MU);
183 out_be32(&im->mddrc.lut_table3_main_lower, CONFIG_SYS_MDDRCGRP_LUT3_ML);
184 out_be32(&im->mddrc.lut_table4_main_upper, CONFIG_SYS_MDDRCGRP_LUT4_MU);
185 out_be32(&im->mddrc.lut_table4_main_lower, CONFIG_SYS_MDDRCGRP_LUT4_ML);
186 out_be32(&im->mddrc.lut_table0_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT0_AU);
187 out_be32(&im->mddrc.lut_table0_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT0_AL);
188 out_be32(&im->mddrc.lut_table1_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT1_AU);
189 out_be32(&im->mddrc.lut_table1_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT1_AL);
190 out_be32(&im->mddrc.lut_table2_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT2_AU);
191 out_be32(&im->mddrc.lut_table2_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT2_AL);
192 out_be32(&im->mddrc.lut_table3_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT3_AU);
193 out_be32(&im->mddrc.lut_table3_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT3_AL);
194 out_be32(&im->mddrc.lut_table4_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT4_AU);
195 out_be32(&im->mddrc.lut_table4_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT4_AL);
197 /* Initialize MDDRC */
198 out_be32(&im->mddrc.ddr_sys_config, CONFIG_SYS_MDDRC_SYS_CFG);
199 out_be32(&im->mddrc.ddr_time_config0, CONFIG_SYS_MDDRC_TIME_CFG0);
200 out_be32(&im->mddrc.ddr_time_config1, CONFIG_SYS_MDDRC_TIME_CFG1);
201 out_be32(&im->mddrc.ddr_time_config2, CONFIG_SYS_MDDRC_TIME_CFG2);
204 for (i = 0; i < 10; i++)
205 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
207 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_PCHG_ALL);
208 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
209 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_RFSH);
210 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
211 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_RFSH);
212 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
213 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_INIT_DEV_OP);
214 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
215 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_EM2);
216 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
217 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_PCHG_ALL);
218 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_EM2);
219 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_EM3);
220 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_EN_DLL);
221 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_INIT_DEV_OP);
222 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_PCHG_ALL);
223 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_RFSH);
224 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_INIT_DEV_OP);
225 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_OCD_DEFAULT);
226 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_PCHG_ALL);
227 out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
230 out_be32(&im->mddrc.ddr_time_config0, CONFIG_SYS_MDDRC_TIME_CFG0_RUN);
231 out_be32(&im->mddrc.ddr_sys_config, CONFIG_SYS_MDDRC_SYS_CFG_RUN);
236 phys_size_t initdram(int board_type)
238 return get_ram_size(0, fixed_sdram());
241 int misc_init_r(void)
243 volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
247 * Optimize access to profibus chip (VPC3) on the local bus
251 * Select 1:1 for LPC_DIV
253 val = in_be32(&im->clk.scfr[0]) & ~SCFR1_LPC_DIV_MASK;
254 out_be32(&im->clk.scfr[0], val | (0x1 << SCFR1_LPC_DIV_SHIFT));
257 * Configure LPC Chips Select Deadcycle Control Register
258 * CS0 - device can drive data 2 clock cycle(s) after CS deassertion
259 * CS1 - device can drive data 1 clock cycle(s) after CS deassertion
261 clrbits_be32(&im->lpc.cs_dccr, 0x000000ff);
262 setbits_be32(&im->lpc.cs_dccr, (0x00 << 4) | (0x01 << 0));
265 * Configure LPC Chips Select Holdcycle Control Register
266 * CS0 - data is valid 2 clock cycle(s) after CS deassertion
267 * CS1 - data is valid 1 clock cycle(s) after CS deassertion
269 clrbits_be32(&im->lpc.cs_hccr, 0x000000ff);
270 setbits_be32(&im->lpc.cs_hccr, (0x00 << 4) | (0x01 << 0));
275 static iopin_t ioregs_init[] = {
276 /* FUNC1=FEC_RX_DV Sets Next 3 to FEC pads */
278 offsetof(struct ioctrl512x, io_control_spdif_txclk), 3, 0,
279 IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
280 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
282 /* FUNC1=FEC_COL Sets Next 15 to FEC pads */
284 offsetof(struct ioctrl512x, io_control_psc0_0), 15, 0,
285 IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
286 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
288 /* FUNC1=SELECT LPC_CS1 */
290 offsetof(struct ioctrl512x, io_control_lpc_cs1), 1, 0,
291 IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
292 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
294 /* FUNC3=SELECT PSC5_2 */
296 offsetof(struct ioctrl512x, io_control_psc5_2), 1, 0,
297 IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
298 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
300 /* FUNC3=SELECT PSC5_3 */
302 offsetof(struct ioctrl512x, io_control_psc5_3), 1, 0,
303 IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
304 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
306 /* FUNC3=SELECT PSC7_3 */
308 offsetof(struct ioctrl512x, io_control_psc7_3), 1, 0,
309 IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
310 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
312 /* FUNC3=SELECT PSC9_0 */
314 offsetof(struct ioctrl512x, io_control_psc9_0), 3, 0,
315 IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
316 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
318 /* FUNC3=SELECT PSC10_0 */
320 offsetof(struct ioctrl512x, io_control_psc10_0), 3, 0,
321 IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
322 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
324 /* FUNC3=SELECT PSC10_3 */
326 offsetof(struct ioctrl512x, io_control_psc10_3), 1, 0,
327 IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
328 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
330 /* FUNC3=SELECT PSC11_0 */
332 offsetof(struct ioctrl512x, io_control_psc11_0), 4, 0,
333 IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
334 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
336 /* FUNC0=SELECT IRQ0 */
338 offsetof(struct ioctrl512x, io_control_irq0), 4, 0,
339 IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
340 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
344 static iopin_t rev2_silicon_pci_ioregs_init[] = {
345 /* FUNC0=PCI Sets next 54 to PCI pads */
347 offsetof(struct ioctrl512x, io_control_pci_ad31), 54, 0,
348 IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_DS(0)
354 volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
357 puts("Board: MECP_5123\n");
360 * Initialize function mux & slew rate IO inter alia on IO
363 iopin_initialize(ioregs_init, ARRAY_SIZE(ioregs_init));
365 spridr = in_be32(&im->sysconf.spridr);
366 if (SVR_MJREV(spridr) >= 2)
367 iopin_initialize(rev2_silicon_pci_ioregs_init, 1);
372 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
373 void ft_board_setup(void *blob, bd_t *bd)
375 ft_cpu_setup(blob, bd);
376 fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
378 #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */