21264136ce
While we've been sorting out the toolchain fiasco, some of the code has suffered a bit of bitrot. Building with GCC4 also brings up some more build warnings. Trivial fixes for both issues. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
247 lines
6.8 KiB
C
247 lines
6.8 KiB
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* arch/sh64/mach-cayman/setup.c
|
|
*
|
|
* SH5 Cayman support
|
|
*
|
|
* This file handles the architecture-dependent parts of initialization
|
|
*
|
|
* Copyright David J. Mckay.
|
|
* Needs major work!
|
|
*
|
|
* benedict.gaster@superh.com: 3rd May 2002
|
|
* Added support for ramdisk, removing statically linked romfs at the same time.
|
|
*
|
|
* lethal@linux-sh.org: 15th May 2003
|
|
* Use the generic procfs cpuinfo interface, just return a valid board name.
|
|
*/
|
|
|
|
#include <linux/stddef.h>
|
|
#include <linux/init.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/bootmem.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/seq_file.h>
|
|
#include <asm/processor.h>
|
|
#include <asm/platform.h>
|
|
#include <asm/io.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/page.h>
|
|
|
|
/*
|
|
* Platform Dependent Interrupt Priorities.
|
|
*/
|
|
|
|
/* Using defaults defined in irq.h */
|
|
#define RES NO_PRIORITY /* Disabled */
|
|
#define IR0 IRL0_PRIORITY /* IRLs */
|
|
#define IR1 IRL1_PRIORITY
|
|
#define IR2 IRL2_PRIORITY
|
|
#define IR3 IRL3_PRIORITY
|
|
#define PCA INTA_PRIORITY /* PCI Ints */
|
|
#define PCB INTB_PRIORITY
|
|
#define PCC INTC_PRIORITY
|
|
#define PCD INTD_PRIORITY
|
|
#define SER TOP_PRIORITY
|
|
#define ERR TOP_PRIORITY
|
|
#define PW0 TOP_PRIORITY
|
|
#define PW1 TOP_PRIORITY
|
|
#define PW2 TOP_PRIORITY
|
|
#define PW3 TOP_PRIORITY
|
|
#define DM0 NO_PRIORITY /* DMA Ints */
|
|
#define DM1 NO_PRIORITY
|
|
#define DM2 NO_PRIORITY
|
|
#define DM3 NO_PRIORITY
|
|
#define DAE NO_PRIORITY
|
|
#define TU0 TIMER_PRIORITY /* TMU Ints */
|
|
#define TU1 NO_PRIORITY
|
|
#define TU2 NO_PRIORITY
|
|
#define TI2 NO_PRIORITY
|
|
#define ATI NO_PRIORITY /* RTC Ints */
|
|
#define PRI NO_PRIORITY
|
|
#define CUI RTC_PRIORITY
|
|
#define ERI SCIF_PRIORITY /* SCIF Ints */
|
|
#define RXI SCIF_PRIORITY
|
|
#define BRI SCIF_PRIORITY
|
|
#define TXI SCIF_PRIORITY
|
|
#define ITI TOP_PRIORITY /* WDT Ints */
|
|
|
|
/* Setup for the SMSC FDC37C935 */
|
|
#define SMSC_SUPERIO_BASE 0x04000000
|
|
#define SMSC_CONFIG_PORT_ADDR 0x3f0
|
|
#define SMSC_INDEX_PORT_ADDR SMSC_CONFIG_PORT_ADDR
|
|
#define SMSC_DATA_PORT_ADDR 0x3f1
|
|
|
|
#define SMSC_ENTER_CONFIG_KEY 0x55
|
|
#define SMSC_EXIT_CONFIG_KEY 0xaa
|
|
|
|
#define SMCS_LOGICAL_DEV_INDEX 0x07
|
|
#define SMSC_DEVICE_ID_INDEX 0x20
|
|
#define SMSC_DEVICE_REV_INDEX 0x21
|
|
#define SMSC_ACTIVATE_INDEX 0x30
|
|
#define SMSC_PRIMARY_BASE_INDEX 0x60
|
|
#define SMSC_SECONDARY_BASE_INDEX 0x62
|
|
#define SMSC_PRIMARY_INT_INDEX 0x70
|
|
#define SMSC_SECONDARY_INT_INDEX 0x72
|
|
|
|
#define SMSC_IDE1_DEVICE 1
|
|
#define SMSC_KEYBOARD_DEVICE 7
|
|
#define SMSC_CONFIG_REGISTERS 8
|
|
|
|
#define SMSC_SUPERIO_READ_INDEXED(index) ({ \
|
|
outb((index), SMSC_INDEX_PORT_ADDR); \
|
|
inb(SMSC_DATA_PORT_ADDR); })
|
|
#define SMSC_SUPERIO_WRITE_INDEXED(val, index) ({ \
|
|
outb((index), SMSC_INDEX_PORT_ADDR); \
|
|
outb((val), SMSC_DATA_PORT_ADDR); })
|
|
|
|
#define IDE1_PRIMARY_BASE 0x01f0
|
|
#define IDE1_SECONDARY_BASE 0x03f6
|
|
|
|
unsigned long smsc_superio_virt;
|
|
|
|
/*
|
|
* Platform dependent structures: maps and parms block.
|
|
*/
|
|
struct resource io_resources[] = {
|
|
/* To be updated with external devices */
|
|
};
|
|
|
|
struct resource kram_resources[] = {
|
|
/* These must be last in the array */
|
|
{ .name = "Kernel code", .start = 0, .end = 0 },
|
|
/* These must be last in the array */
|
|
{ .name = "Kernel data", .start = 0, .end = 0 }
|
|
};
|
|
|
|
struct resource xram_resources[] = {
|
|
/* To be updated with external devices */
|
|
};
|
|
|
|
struct resource rom_resources[] = {
|
|
/* To be updated with external devices */
|
|
};
|
|
|
|
struct sh64_platform platform_parms = {
|
|
.readonly_rootfs = 1,
|
|
.initial_root_dev = 0x0100,
|
|
.loader_type = 1,
|
|
.io_res_p = io_resources,
|
|
.io_res_count = ARRAY_SIZE(io_resources),
|
|
.kram_res_p = kram_resources,
|
|
.kram_res_count = ARRAY_SIZE(kram_resources),
|
|
.xram_res_p = xram_resources,
|
|
.xram_res_count = ARRAY_SIZE(xram_resources),
|
|
.rom_res_p = rom_resources,
|
|
.rom_res_count = ARRAY_SIZE(rom_resources),
|
|
};
|
|
|
|
int platform_int_priority[NR_INTC_IRQS] = {
|
|
IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD, /* IRQ 0- 7 */
|
|
RES, RES, RES, RES, SER, ERR, PW3, PW2, /* IRQ 8-15 */
|
|
PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES, /* IRQ 16-23 */
|
|
RES, RES, RES, RES, RES, RES, RES, RES, /* IRQ 24-31 */
|
|
TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI, /* IRQ 32-39 */
|
|
RXI, BRI, TXI, RES, RES, RES, RES, RES, /* IRQ 40-47 */
|
|
RES, RES, RES, RES, RES, RES, RES, RES, /* IRQ 48-55 */
|
|
RES, RES, RES, RES, RES, RES, RES, ITI, /* IRQ 56-63 */
|
|
};
|
|
|
|
static int __init smsc_superio_setup(void)
|
|
{
|
|
unsigned char devid, devrev;
|
|
|
|
smsc_superio_virt = onchip_remap(SMSC_SUPERIO_BASE, 1024, "SMSC SuperIO");
|
|
if (!smsc_superio_virt) {
|
|
panic("Unable to remap SMSC SuperIO\n");
|
|
}
|
|
|
|
/* Initially the chip is in run state */
|
|
/* Put it into configuration state */
|
|
outb(SMSC_ENTER_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
|
|
outb(SMSC_ENTER_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
|
|
|
|
/* Read device ID info */
|
|
devid = SMSC_SUPERIO_READ_INDEXED(SMSC_DEVICE_ID_INDEX);
|
|
devrev = SMSC_SUPERIO_READ_INDEXED(SMSC_DEVICE_REV_INDEX);
|
|
printk("SMSC SuperIO devid %02x rev %02x\n", devid, devrev);
|
|
|
|
/* Select the keyboard device */
|
|
SMSC_SUPERIO_WRITE_INDEXED(SMSC_KEYBOARD_DEVICE, SMCS_LOGICAL_DEV_INDEX);
|
|
|
|
/* enable it */
|
|
SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_ACTIVATE_INDEX);
|
|
|
|
/* Select the interrupts */
|
|
/* On a PC keyboard is IRQ1, mouse is IRQ12 */
|
|
SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_PRIMARY_INT_INDEX);
|
|
SMSC_SUPERIO_WRITE_INDEXED(12, SMSC_SECONDARY_INT_INDEX);
|
|
|
|
#ifdef CONFIG_IDE
|
|
/*
|
|
* Only IDE1 exists on the Cayman
|
|
*/
|
|
|
|
/* Power it on */
|
|
SMSC_SUPERIO_WRITE_INDEXED(1 << SMSC_IDE1_DEVICE, 0x22);
|
|
|
|
SMSC_SUPERIO_WRITE_INDEXED(SMSC_IDE1_DEVICE, SMCS_LOGICAL_DEV_INDEX);
|
|
SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_ACTIVATE_INDEX);
|
|
|
|
SMSC_SUPERIO_WRITE_INDEXED(IDE1_PRIMARY_BASE >> 8,
|
|
SMSC_PRIMARY_BASE_INDEX + 0);
|
|
SMSC_SUPERIO_WRITE_INDEXED(IDE1_PRIMARY_BASE & 0xff,
|
|
SMSC_PRIMARY_BASE_INDEX + 1);
|
|
|
|
SMSC_SUPERIO_WRITE_INDEXED(IDE1_SECONDARY_BASE >> 8,
|
|
SMSC_SECONDARY_BASE_INDEX + 0);
|
|
SMSC_SUPERIO_WRITE_INDEXED(IDE1_SECONDARY_BASE & 0xff,
|
|
SMSC_SECONDARY_BASE_INDEX + 1);
|
|
|
|
SMSC_SUPERIO_WRITE_INDEXED(14, SMSC_PRIMARY_INT_INDEX);
|
|
|
|
SMSC_SUPERIO_WRITE_INDEXED(SMSC_CONFIG_REGISTERS,
|
|
SMCS_LOGICAL_DEV_INDEX);
|
|
|
|
SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc2); /* GP42 = nIDE1_OE */
|
|
SMSC_SUPERIO_WRITE_INDEXED(0x01, 0xc5); /* GP45 = IDE1_IRQ */
|
|
SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc6); /* GP46 = nIOROP */
|
|
SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc7); /* GP47 = nIOWOP */
|
|
#endif
|
|
|
|
/* Exit the configuraton state */
|
|
outb(SMSC_EXIT_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* This is grotty, but, because kernel is always referenced on the link line
|
|
* before any devices, this is safe.
|
|
*/
|
|
__initcall(smsc_superio_setup);
|
|
|
|
void __init platform_setup(void)
|
|
{
|
|
/* Cayman platform leaves the decision to head.S, for now */
|
|
platform_parms.fpu_flags = fpu_in_use;
|
|
}
|
|
|
|
void __init platform_monitor(void)
|
|
{
|
|
/* Nothing yet .. */
|
|
}
|
|
|
|
void __init platform_reserve(void)
|
|
{
|
|
/* Nothing yet .. */
|
|
}
|
|
|
|
const char *get_system_type(void)
|
|
{
|
|
return "Hitachi Cayman";
|
|
}
|
|
|