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major cleanup of the ar531x code, improved hardware detection and support for multiple ethernet interfaces

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6307 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
2007-02-16 09:23:15 +00:00
parent ee43602dd3
commit 6869d66ad6
14 changed files with 360 additions and 429 deletions
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49
target/linux/atheros-2.6/files/arch/mips/atheros/ar5315.c
View File

@@ -28,15 +28,16 @@
#include <asm/io.h>
#include "ar531x.h"
static int is_5315 = 0;
static struct resource ar5315_eth_res[] = {
{
.name = "eth_membase",
.name = "eth0_membase",
.flags = IORESOURCE_MEM,
.start = AR5315_ENET0,
.end = AR5315_ENET0 + 0x2000,
},
{
.name = "eth_irq",
.name = "eth0_irq",
.flags = IORESOURCE_IRQ,
.start = AR5315_IRQ_ENET0_INTRS,
.end = AR5315_IRQ_ENET0_INTRS,
@@ -49,6 +50,7 @@ static struct ar531x_eth ar5315_eth_data = {
.reset_base = AR5315_RESET,
.reset_mac = AR5315_RESET_ENET0,
.reset_phy = AR5315_RESET_EPHY0,
.phy_base = AR5315_ENET0
};
static struct platform_device ar5315_eth = {
@@ -175,20 +177,40 @@ static char __init *ar5315_flash_limit(void)
int __init ar5315_init_devices(void)
{
struct ar531x_config *config;
struct ar531x_boarddata *bcfg;
u32 devid;
int dev = 0;
if (mips_machtype != MACH_ATHEROS_AR5315)
if (!is_5315)
return 0;
/* Find board configuration */
ar531x_find_config(ar5315_flash_limit());
bcfg = (struct ar531x_boarddata *) board_config;
#if 0
/* Detect the hardware based on the device ID */
devid = sysRegRead(AR5315_SREV) & AR5315_REV_MAJ >> AR5315_REV_MAJ_S;
switch(devid) {
case 0x9:
mips_machtype = MACH_ATHEROS_AR2317;
break;
/* FIXME: how can we detect AR2316? */
case 0x8:
default:
mips_machtype = MACH_ATHEROS_AR2315;
break;
}
#endif
config = (struct ar531x_config *) kzalloc(sizeof(struct ar531x_config), GFP_KERNEL);
config->board = board_config;
config->radio = radio_config;
config->unit = 0;
config->tag = (u_int16_t) (sysRegRead(AR5315_SREV) & REV_CHIP);
config->tag = (u_int16_t) (sysRegRead(AR5315_SREV) & AR5315_REV_CHIP);
ar5315_eth_data.board_config = board_config;
ar5315_eth_data.macaddr = bcfg->enet0Mac;
ar5315_wmac.dev.platform_data = config;
ar5315_devs[dev++] = &ar5315_eth;
@@ -379,8 +401,6 @@ ar5315_misc_intr_enable(unsigned int irq)
}
sysRegWrite(AR5315_IMR, imr);
imr=sysRegRead(AR5315_IMR); /* flush write buffer */
//printk("enable Interrupt irq 0x%x imr 0x%x \n",irq,imr);
}
/* Disable the specified AR531X_MISC_IRQ interrupt */
@@ -501,6 +521,23 @@ void ar5315_misc_intr_init(int irq_base)
setup_irq(AR5315_IRQ_MISC_INTRS, &cascade);
}
void __init ar5315_prom_init(void)
{
u32 memsize, memcfg;
is_5315 = 1;
memcfg = sysRegRead(AR5315_MEM_CFG);
memsize = 1 + ((memcfg & SDRAM_DATA_WIDTH_M) >> SDRAM_DATA_WIDTH_S);
memsize <<= 1 + ((memcfg & SDRAM_COL_WIDTH_M) >> SDRAM_COL_WIDTH_S);
memsize <<= 1 + ((memcfg & SDRAM_ROW_WIDTH_M) >> SDRAM_ROW_WIDTH_S);
memsize <<= 3;
add_memory_region(0, memsize, BOOT_MEM_RAM);
/* Initialize it to AR2315 for now. Real detection will be done
* in ar5315_init_devices() */
mips_machtype = MACH_ATHEROS_AR2315;
}
void __init ar5315_plat_setup(void)
{
unsigned int config = read_c0_config();