diff options
Diffstat (limited to 'target/linux/atheros-2.6/files/arch/mips/atheros/ar5312.c')
| -rw-r--r-- | target/linux/atheros-2.6/files/arch/mips/atheros/ar5312.c | 171 |
1 files changed, 140 insertions, 31 deletions
diff --git a/target/linux/atheros-2.6/files/arch/mips/atheros/ar5312.c b/target/linux/atheros-2.6/files/arch/mips/atheros/ar5312.c index 4e1beaae3..d337098d5 100644 --- a/target/linux/atheros-2.6/files/arch/mips/atheros/ar5312.c +++ b/target/linux/atheros-2.6/files/arch/mips/atheros/ar5312.c @@ -29,56 +29,55 @@ #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[] = { @@ -98,6 +97,42 @@ 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, @@ -109,7 +144,6 @@ static struct platform_device ar5312_wmac[] = { }, }; - static struct physmap_flash_data ar5312_flash_data = { .width = 2, }; @@ -139,7 +173,10 @@ static struct platform_device ar5312_physmap_flash = { 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 | @@ -157,7 +194,7 @@ static char __init *ar5312_flash_limit(void) 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) @@ -175,27 +212,80 @@ 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); @@ -445,6 +535,25 @@ void __init ar5312_misc_intr_init(int irq_base) 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) { |