2 * arch/ppc/platforms/85xx/sbc8560.c
4 * Wind River SBC8560 board specific routines
6 * Maintainer: Kumar Gala <kumar.gala@freescale.com>
8 * Copyright 2004 Freescale Semiconductor Inc.
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
16 #include <linux/config.h>
17 #include <linux/stddef.h>
18 #include <linux/kernel.h>
19 #include <linux/init.h>
20 #include <linux/errno.h>
21 #include <linux/reboot.h>
22 #include <linux/pci.h>
23 #include <linux/kdev_t.h>
24 #include <linux/major.h>
25 #include <linux/console.h>
26 #include <linux/delay.h>
27 #include <linux/irq.h>
28 #include <linux/seq_file.h>
29 #include <linux/root_dev.h>
30 #include <linux/serial.h>
31 #include <linux/tty.h> /* for linux/serial_core.h */
32 #include <linux/serial_core.h>
33 #include <linux/initrd.h>
34 #include <linux/module.h>
35 #include <linux/initrd.h>
37 #include <asm/system.h>
38 #include <asm/pgtable.h>
40 #include <asm/atomic.h>
43 #include <asm/machdep.h>
45 #include <asm/open_pic.h>
46 #include <asm/bootinfo.h>
47 #include <asm/pci-bridge.h>
48 #include <asm/mpc85xx.h>
50 #include <asm/immap_85xx.h>
53 #include <mm/mmu_decl.h>
55 #include <syslib/ppc85xx_common.h>
56 #include <syslib/ppc85xx_setup.h>
58 struct ocp_gfar_data mpc85xx_tsec1_def = {
59 .interruptTransmit = MPC85xx_IRQ_TSEC1_TX,
60 .interruptError = MPC85xx_IRQ_TSEC1_ERROR,
61 .interruptReceive = MPC85xx_IRQ_TSEC1_RX,
62 .interruptPHY = MPC85xx_IRQ_EXT6,
63 .flags = (GFAR_HAS_GIGABIT | GFAR_HAS_MULTI_INTR | GFAR_HAS_PHY_INTR),
68 struct ocp_gfar_data mpc85xx_tsec2_def = {
69 .interruptTransmit = MPC85xx_IRQ_TSEC2_TX,
70 .interruptError = MPC85xx_IRQ_TSEC2_ERROR,
71 .interruptReceive = MPC85xx_IRQ_TSEC2_RX,
72 .interruptPHY = MPC85xx_IRQ_EXT7,
73 .flags = (GFAR_HAS_GIGABIT | GFAR_HAS_MULTI_INTR | GFAR_HAS_PHY_INTR),
78 struct ocp_fs_i2c_data mpc85xx_i2c1_def = {
79 .flags = FS_I2C_SEPARATE_DFSRR,
83 #ifdef CONFIG_SERIAL_8250
85 sbc8560_early_serial_map(void)
87 struct uart_port uart_req;
89 /* Setup serial port access */
90 memset(&uart_req, 0, sizeof (uart_req));
91 uart_req.irq = MPC85xx_IRQ_EXT9;
92 uart_req.flags = STD_COM_FLAGS;
93 uart_req.uartclk = BASE_BAUD * 16;
94 uart_req.iotype = SERIAL_IO_MEM;
95 uart_req.mapbase = UARTA_ADDR;
96 uart_req.membase = ioremap(uart_req.mapbase, MPC85xx_UART0_SIZE);
97 uart_req.type = PORT_16650;
99 #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
100 gen550_init(0, &uart_req);
103 if (early_serial_setup(&uart_req) != 0)
104 printk("Early serial init of port 0 failed\n");
106 /* Assume early_serial_setup() doesn't modify uart_req */
108 uart_req.mapbase = UARTB_ADDR;
109 uart_req.membase = ioremap(uart_req.mapbase, MPC85xx_UART1_SIZE);
110 uart_req.irq = MPC85xx_IRQ_EXT10;
112 #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
113 gen550_init(1, &uart_req);
116 if (early_serial_setup(&uart_req) != 0)
117 printk("Early serial init of port 1 failed\n");
121 /* ************************************************************************
123 * Setup the architecture
127 sbc8560_setup_arch(void)
130 struct ocp_gfar_data *einfo;
131 bd_t *binfo = (bd_t *) __res;
134 /* get the core frequency */
135 freq = binfo->bi_intfreq;
138 ppc_md.progress("sbc8560_setup_arch()", 0);
140 /* Set loops_per_jiffy to a half-way reasonable value,
141 for use until calibrate_delay gets called. */
142 loops_per_jiffy = freq / HZ;
145 /* setup PCI host bridges */
146 mpc85xx_setup_hose();
148 #ifdef CONFIG_DUMMY_CONSOLE
149 conswitchp = &dummy_con;
151 #ifdef CONFIG_SERIAL_8250
152 sbc8560_early_serial_map();
154 #ifdef CONFIG_SERIAL_TEXT_DEBUG
155 /* Invalidate the entry we stole earlier the serial ports
156 * should be properly mapped */
157 invalidate_tlbcam_entry(NUM_TLBCAMS - 1);
160 /* Set up MAC addresses for the Ethernet devices */
161 def = ocp_get_one_device(OCP_VENDOR_FREESCALE, OCP_FUNC_GFAR, 0);
163 einfo = (struct ocp_gfar_data *) def->additions;
164 memcpy(einfo->mac_addr, binfo->bi_enetaddr, 6);
167 def = ocp_get_one_device(OCP_VENDOR_FREESCALE, OCP_FUNC_GFAR, 1);
169 einfo = (struct ocp_gfar_data *) def->additions;
170 memcpy(einfo->mac_addr, binfo->bi_enet1addr, 6);
173 #ifdef CONFIG_BLK_DEV_INITRD
175 ROOT_DEV = Root_RAM0;
178 #ifdef CONFIG_ROOT_NFS
181 ROOT_DEV = Root_HDA1;
184 ocp_for_each_device(mpc85xx_update_paddr_ocp, &(binfo->bi_immr_base));
187 /* ************************************************************************ */
189 platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
190 unsigned long r6, unsigned long r7)
192 /* parse_bootinfo must always be called first */
193 parse_bootinfo(find_bootinfo());
196 * If we were passed in a board information, copy it into the
197 * residual data area.
200 memcpy((void *) __res, (void *) (r3 + KERNELBASE),
204 #ifdef CONFIG_SERIAL_TEXT_DEBUG
205 /* Use the last TLB entry to map CCSRBAR to allow access to DUART regs */
206 settlbcam(NUM_TLBCAMS - 1, UARTA_ADDR,
207 UARTA_ADDR, 0x1000, _PAGE_IO, 0);
210 #if defined(CONFIG_BLK_DEV_INITRD)
212 * If the init RAM disk has been configured in, and there's a valid
213 * starting address for it, set it up.
216 initrd_start = r4 + KERNELBASE;
217 initrd_end = r5 + KERNELBASE;
219 #endif /* CONFIG_BLK_DEV_INITRD */
221 /* Copy the kernel command line arguments to a safe place. */
224 *(char *) (r7 + KERNELBASE) = 0;
225 strcpy(cmd_line, (char *) (r6 + KERNELBASE));
228 /* setup the PowerPC module struct */
229 ppc_md.setup_arch = sbc8560_setup_arch;
230 ppc_md.show_cpuinfo = sbc8560_show_cpuinfo;
232 ppc_md.init_IRQ = sbc8560_init_IRQ;
233 ppc_md.get_irq = openpic_get_irq;
235 ppc_md.restart = mpc85xx_restart;
236 ppc_md.power_off = mpc85xx_power_off;
237 ppc_md.halt = mpc85xx_halt;
239 ppc_md.find_end_of_memory = mpc85xx_find_end_of_memory;
241 ppc_md.time_init = NULL;
242 ppc_md.set_rtc_time = NULL;
243 ppc_md.get_rtc_time = NULL;
244 ppc_md.calibrate_decr = mpc85xx_calibrate_decr;
246 #if defined(CONFIG_SERIAL_8250) && defined(CONFIG_SERIAL_TEXT_DEBUG)
247 ppc_md.progress = gen550_progress;
248 #endif /* CONFIG_SERIAL_8250 && CONFIG_SERIAL_TEXT_DEBUG */
251 ppc_md.progress("sbc8560_init(): exit", 0);