#include <asm/io.h>
#include "ar531x.h"
+#define NO_PHY 0x1f
-
+static int is_5312 = 0;
static struct platform_device *ar5312_devs[5];
static struct resource ar5312_eth0_res[] = {
{
- .name = "eth_membase",
+ .name = "eth0_membase",
.flags = IORESOURCE_MEM,
.start = KSEG1ADDR(AR531X_ENET0),
.end = KSEG1ADDR(AR531X_ENET0 + 0x2000),
},
{
- .name = "eth_irq",
+ .name = "eth0_irq",
.flags = IORESOURCE_IRQ,
.start = AR5312_IRQ_ENET0_INTRS,
.end = AR5312_IRQ_ENET0_INTRS,
},
};
-
+static struct ar531x_eth ar5312_eth0_data = {
+ .phy = NO_PHY,
+ .mac = 0,
+ .reset_base = AR531X_RESET,
+ .reset_mac = AR531X_RESET_ENET0,
+ .reset_phy = AR531X_RESET_EPHY0,
+ .phy_base = KSEG1ADDR(AR531X_ENET0),
+};
static struct resource ar5312_eth1_res[] = {
{
- .name = "eth_membase",
+ .name = "eth1_membase",
.flags = IORESOURCE_MEM,
.start = KSEG1ADDR(AR531X_ENET1),
.end = KSEG1ADDR(AR531X_ENET1 + 0x2000),
},
{
- .name = "eth_irq",
+ .name = "eth1_irq",
.flags = IORESOURCE_IRQ,
.start = AR5312_IRQ_ENET1_INTRS,
.end = AR5312_IRQ_ENET1_INTRS,
},
};
-
-
-static struct ar531x_eth ar5312_eth0_data = {
- .phy = 0x1f,
- .mac = 0,
- .reset_base = AR531X_RESET,
- .reset_mac = AR531X_RESET_ENET0,
- .reset_phy = AR531X_RESET_EPHY0,
-};
-
static struct ar531x_eth ar5312_eth1_data = {
- .phy = 0,
+ .phy = NO_PHY,
.mac = 1,
.reset_base = AR531X_RESET,
.reset_mac = AR531X_RESET_ENET1,
.reset_phy = AR531X_RESET_EPHY1,
+ .phy_base = KSEG1ADDR(AR531X_ENET1),
};
static struct platform_device ar5312_eth[] = {
},
};
+
+/*
+ * AR2312/3 ethernet uses the PHY of ENET0, but the MAC
+ * of ENET1. Atheros calls it 'twisted' for a reason :)
+ */
+static struct resource ar231x_eth0_res[] = {
+ {
+ .name = "eth0_membase",
+ .flags = IORESOURCE_MEM,
+ .start = KSEG1ADDR(AR531X_ENET1),
+ .end = KSEG1ADDR(AR531X_ENET1 + 0x2000),
+ },
+ {
+ .name = "eth0_irq",
+ .flags = IORESOURCE_IRQ,
+ .start = AR5312_IRQ_ENET1_INTRS,
+ .end = AR5312_IRQ_ENET1_INTRS,
+ },
+};
+static struct ar531x_eth ar231x_eth0_data = {
+ .phy = 1,
+ .mac = 1,
+ .reset_base = AR531X_RESET,
+ .reset_mac = AR531X_RESET_ENET1,
+ .reset_phy = AR531X_RESET_EPHY1,
+ .phy_base = KSEG1ADDR(AR531X_ENET0),
+};
+static struct platform_device ar231x_eth0 = {
+ .id = 0,
+ .name = "ar531x-eth",
+ .dev.platform_data = &ar231x_eth0_data,
+ .resource = ar231x_eth0_res,
+ .num_resources = ARRAY_SIZE(ar231x_eth0_res)
+};
+
+
static struct platform_device ar5312_wmac[] = {
{
.id = 0,
},
};
-
static struct physmap_flash_data ar5312_flash_data = {
.width = 2,
};
static char __init *ar5312_flash_limit(void)
{
u32 ctl;
- /* Configure flash bank 0 */
+ /*
+ * Configure flash bank 0.
+ * Assume 8M window size. Flash will be aliased if it's smaller
+ */
ctl = FLASHCTL_E |
FLASHCTL_AC_8M |
FLASHCTL_RBLE |
sysRegWrite(AR531X_FLASHCTL2,
sysRegRead(AR531X_FLASHCTL2) & ~(FLASHCTL_E | FLASHCTL_AC));
- return (char *) KSEG1ADDR(AR531X_FLASH + 0x400000);
+ return (char *) KSEG1ADDR(AR531X_FLASH + 0x800000);
}
static struct ar531x_config __init *init_wmac(int unit)
int __init ar5312_init_devices(void)
{
- char *radio;
+ struct ar531x_boarddata *bcfg;
+ char *radio, *c;
int dev = 0;
- if (mips_machtype != MACH_ATHEROS_AR5312)
+ if (!is_5312)
return 0;
+ /* Locate board/radio config data */
ar531x_find_config(ar5312_flash_limit());
+ bcfg = (struct ar531x_boarddata *) board_config;
+
+
+ /*
+ * Chip IDs and hardware detection for some Atheros
+ * models are really broken!
+ *
+ * Atheros uses a disabled WMAC0 and Silicon ID of AR5312
+ * as indication for AR2312, which is otherwise
+ * indistinguishable from the real AR5312.
+ */
+ if (radio_config) {
+ radio = radio_config + AR531X_RADIO_MASK_OFF;
+ if ((*((u32 *) radio) & AR531X_RADIO0_MASK) == 0)
+ bcfg->config |= BD_ISCASPER;
+ } else
+ radio = NULL;
+
+ /* AR2313 has CPU minor rev. 10 */
+ if ((current_cpu_data.processor_id & 0xff) == 0x0a)
+ mips_machtype = MACH_ATHEROS_AR2313;
+
+ /* AR2312 shares the same Silicon ID as AR5312 */
+ else if (bcfg->config & BD_ISCASPER)
+ mips_machtype = MACH_ATHEROS_AR2312;
+
+ /* Everything else is probably AR5312 or compatible */
+ else
+ mips_machtype = MACH_ATHEROS_AR5312;
+
ar5312_eth0_data.board_config = board_config;
ar5312_eth1_data.board_config = board_config;
ar5312_devs[dev++] = &ar5312_physmap_flash;
- ar5312_devs[dev++] = &ar5312_eth[0];
- ar5312_devs[dev++] = &ar5312_eth[1];
- radio = radio_config + AR531X_RADIO_MASK_OFF;
- if (*((u32 *) radio) & AR531X_RADIO0_MASK) {
- ar5312_wmac[0].dev.platform_data = init_wmac(0);
- ar5312_devs[dev++] = &ar5312_wmac[0];
+ ar5312_eth0_data.macaddr = bcfg->enet0Mac;
+ ar5312_eth1_data.macaddr = bcfg->enet1Mac;
+ if (memcmp(bcfg->enet0Mac, bcfg->enet1Mac, 6) == 0) {
+ /* ENET0 and ENET1 have the same mac.
+ * Increment the one from ENET1 */
+ c = bcfg->enet1Mac + 5;
+ while ((c >= (char *) bcfg->enet1Mac) && !(++(*c)))
+ c--;
+ }
+
+ switch(mips_machtype) {
+ case MACH_ATHEROS_AR5312:
+ ar5312_devs[dev++] = &ar5312_eth[0];
+ ar5312_devs[dev++] = &ar5312_eth[1];
+ break;
+ case MACH_ATHEROS_AR2312:
+ case MACH_ATHEROS_AR2313:
+ ar5312_devs[dev++] = &ar231x_eth0;
+ ar5312_flash_data.width = 1;
+ break;
}
- if (*((u32 *) radio) & AR531X_RADIO1_MASK) {
- ar5312_wmac[1].dev.platform_data = init_wmac(1);
- ar5312_devs[dev++] = &ar5312_wmac[1];
+
+ if (radio) {
+ if (*((u32 *) radio) & AR531X_RADIO0_MASK) {
+ ar5312_wmac[0].dev.platform_data = init_wmac(0);
+ ar5312_devs[dev++] = &ar5312_wmac[0];
+ }
+ if (*((u32 *) radio) & AR531X_RADIO1_MASK) {
+ ar5312_wmac[1].dev.platform_data = init_wmac(1);
+ ar5312_devs[dev++] = &ar5312_wmac[1];
+ }
}
return platform_add_devices(ar5312_devs, dev);
setup_irq(AR5312_IRQ_MISC_INTRS, &cascade);
}
+void __init ar5312_prom_init(void)
+{
+ u32 memsize, memcfg, bank0AC, bank1AC;
+
+ is_5312 = 1;
+
+ /* Detect memory size */
+ memcfg = sysRegRead(AR531X_MEM_CFG1);
+ bank0AC = (memcfg & MEM_CFG1_AC0) >> MEM_CFG1_AC0_S;
+ bank1AC = (memcfg & MEM_CFG1_AC1) >> MEM_CFG1_AC1_S;
+ memsize = (bank0AC ? (1 << (bank0AC+1)) : 0)
+ + (bank1AC ? (1 << (bank1AC+1)) : 0);
+ memsize <<= 20;
+ add_memory_region(0, memsize, BOOT_MEM_RAM);
+
+ /* Initialize it to AR5312 for now. Real detection will be done
+ * in ar5312_init_devices() */
+ mips_machtype = MACH_ATHEROS_AR5312;
+}
void __init ar5312_plat_setup(void)
{
projects / openwrt.git / blobdiff