2 * Copyright 2009-2011 eXMeritus, A Boeing Company
3 * Copyright 2007-2009 Freescale Semiconductor, Inc.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 #include <asm/processor.h>
29 #include <asm/cache.h>
30 #include <asm/immap_85xx.h>
31 #include <asm/fsl_pci.h>
32 #include <asm/fsl_ddr_sdram.h>
36 #include <linux/ctype.h>
37 #include <fdt_support.h>
40 #include <asm/fsl_law.h>
48 DECLARE_GLOBAL_DATA_PTR;
52 unsigned int gpio_high = 0;
53 unsigned int gpio_low = 0;
54 unsigned int gpio_in = 0;
57 puts("Board: HWW-1U-1A ");
60 * First just figure out which CPU we're on, then use that to
61 * configure the lists of other GPIOs to be programmed.
63 mpc85xx_gpio_set_in(GPIO_CPU_ID);
64 if (hww1u1a_is_cpu_a()) {
67 /* We want to turn on some LEDs */
68 gpio_high |= GPIO_CPUA_CPU_READY;
69 gpio_low |= GPIO_CPUA_DEBUG_LED1;
70 gpio_low |= GPIO_CPUA_DEBUG_LED2;
72 /* Disable the unused transmitters */
73 gpio_low |= GPIO_CPUA_TDIS1A;
74 gpio_high |= GPIO_CPUA_TDIS1B;
75 gpio_low |= GPIO_CPUA_TDIS2A;
76 gpio_high |= GPIO_CPUA_TDIS2B;
80 /* We want to turn on some LEDs */
81 gpio_high |= GPIO_CPUB_CPU_READY;
82 gpio_low |= GPIO_CPUB_DEBUG_LED1;
83 gpio_low |= GPIO_CPUB_DEBUG_LED2;
85 /* Enable the appropriate receivers */
86 gpio_high |= GPIO_CPUB_RMUX_SEL0A;
87 gpio_high |= GPIO_CPUB_RMUX_SEL0B;
88 gpio_low |= GPIO_CPUB_RMUX_SEL1A;
89 gpio_low |= GPIO_CPUB_RMUX_SEL1B;
92 /* These GPIOs are common */
93 gpio_in |= IRQ_I2CINT | IRQ_FANINT | IRQ_DIMM_EVENT;
94 gpio_low |= GPIO_RS422_RE;
95 gpio_high |= GPIO_RS422_DE;
97 /* Ok, now go ahead and program all of those in one go */
98 mpc85xx_gpio_set(gpio_high|gpio_low|gpio_in,
103 * If things have been taken out of reset early (for example, by one
104 * of the BDI3000 debuggers), then we need to put them back in reset
105 * and delay a while before we continue.
107 if (mpc85xx_gpio_get(GPIO_RESETS)) {
108 ccsr_ddr_t *ddr = (ccsr_ddr_t *)CONFIG_SYS_MPC8xxx_DDR_ADDR;
110 puts("Debugger detected... extra device reset enabled!\n");
112 /* Put stuff into reset and disable the DDR controller */
113 mpc85xx_gpio_set_low(GPIO_RESETS);
114 out_be32(&ddr->sdram_cfg, 0x00000000);
116 puts(" Waiting 1 sec for reset...");
117 for (i = 0; i < 10; i++) {
124 /* Now bring everything back out of reset again */
125 mpc85xx_gpio_set_high(GPIO_RESETS);
130 * This little shell function just returns whether or not it's CPU A.
131 * It can be used to select the right device-tree when booting, etc.
133 int do_hww1u1a_test_cpu_a(cmd_tbl_t *cmdtp, int flag,
134 int argc, char * const argv[])
139 if (hww1u1a_is_cpu_a())
145 test_cpu_a, 1, 0, do_hww1u1a_test_cpu_a,
146 "Test if this is CPU A (versus B) on the eXMeritus HWW-1U-1A board",
150 /* Create a prompt-like string: "uboot@HOSTNAME% " */
151 #define PROMPT_PREFIX "uboot@exm"
152 #define PROMPT_SUFFIX "% "
154 /* This function returns a PS1 prompt based on the serial number */
155 static char *hww1u1a_prompt;
156 const char *hww1u1a_get_ps1(void)
158 unsigned long len, i, j;
159 const char *serialnr;
161 /* If our prompt was already set, just use that */
163 return hww1u1a_prompt;
165 /* Use our serial number if present, otherwise a default */
166 serialnr = getenv("serial#");
167 if (!serialnr || !serialnr[0])
168 serialnr = "999999-X";
171 * We will turn the serial number into a hostname by:
172 * (A) Delete all non-alphanumerics.
173 * (B) Lowercase all letters.
175 * (D) Suffix "a" for CPU A and "b" for CPU B.
177 for (i = 0, len = 0; serialnr[i]; i++) {
178 if (isalnum(serialnr[i]))
182 len += sizeof(PROMPT_PREFIX PROMPT_SUFFIX) + 1; /* Includes NUL */
183 hww1u1a_prompt = malloc(len);
185 return PROMPT_PREFIX "UNKNOWN(ENOMEM)" PROMPT_SUFFIX;
187 /* Now actually fill it in */
190 /* Handle the prefix */
191 for (j = 0; j < sizeof(PROMPT_PREFIX) - 1; j++)
192 hww1u1a_prompt[i++] = PROMPT_PREFIX[j];
194 /* Now the serial# part of the hostname */
195 for (j = 0; serialnr[j]; j++)
196 if (isalnum(serialnr[j]))
197 hww1u1a_prompt[i++] = tolower(serialnr[j]);
199 /* Now the CPU id ("a" or "b") */
200 hww1u1a_prompt[i++] = hww1u1a_is_cpu_a() ? 'a' : 'b';
202 /* Finally the suffix */
203 for (j = 0; j < sizeof(PROMPT_SUFFIX); j++)
204 hww1u1a_prompt[i++] = PROMPT_SUFFIX[j];
206 /* This should all have added up, but just in case */
207 hww1u1a_prompt[len - 1] = '\0';
210 return hww1u1a_prompt;
213 void pci_init_board(void)
215 fsl_pcie_init_board(0);
218 int board_early_init_r(void)
220 const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
221 const u8 flash_esel = find_tlb_idx((void *)flashbase, 1);
224 * Remap bootflash region to caching-inhibited
225 * so that flash can be erased properly.
228 /* Flush d-cache and invalidate i-cache of any FLASH data */
232 /* invalidate existing TLB entry for FLASH */
233 disable_tlb(flash_esel);
235 set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS,
236 MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
237 0, flash_esel, BOOKE_PAGESZ_256M, 1);
242 int board_eth_init(bd_t *bis)
244 struct tsec_info_struct tsec_info[4];
245 struct fsl_pq_mdio_info mdio_info;
247 SET_STD_TSEC_INFO(tsec_info[0], 1);
248 SET_STD_TSEC_INFO(tsec_info[1], 2);
249 SET_STD_TSEC_INFO(tsec_info[2], 3);
251 if (hww1u1a_is_cpu_a())
252 tsec_info[2].phyaddr = TSEC3_PHY_ADDR_CPUA;
254 tsec_info[2].phyaddr = TSEC3_PHY_ADDR_CPUB;
256 mdio_info.regs = (struct tsec_mii_mng *)CONFIG_SYS_MDIO_BASE_ADDR;
257 mdio_info.name = DEFAULT_MII_NAME;
258 fsl_pq_mdio_init(bis, &mdio_info);
260 tsec_eth_init(bis, tsec_info, 3);
261 return pci_eth_init(bis);
264 void ft_board_setup(void *blob, bd_t *bd)
269 ft_cpu_setup(blob, bd);
271 base = getenv_bootm_low();
272 size = getenv_bootm_size();
274 fdt_fixup_memory(blob, (u64)base, (u64)size);