diff options
Diffstat (limited to 'arch/mips/powertv/asic/asic_devices.c')
| -rw-r--r-- | arch/mips/powertv/asic/asic_devices.c | 281 |
1 files changed, 38 insertions, 243 deletions
diff --git a/arch/mips/powertv/asic/asic_devices.c b/arch/mips/powertv/asic/asic_devices.c index 8ee77887306a..e56fa61b3991 100644 --- a/arch/mips/powertv/asic/asic_devices.c +++ b/arch/mips/powertv/asic/asic_devices.c @@ -1,7 +1,6 @@ /* - * ASIC Device List Intialization * - * Description: Defines the platform resources for the SA settop. + * Description: Defines the platform resources for Gaia-based settops. * * Copyright (C) 2005-2009 Scientific-Atlanta, Inc. * @@ -19,11 +18,6 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * - * Author: Ken Eppinett - * David Schleef <ds@schleef.org> - * - * Description: Defines the platform resources for the SA settop. - * * NOTE: The bootloader allocates persistent memory at an address which is * 16 MiB below the end of the highest address in KSEG0. All fixed * address memory reservations must avoid this region. @@ -39,7 +33,6 @@ #include <linux/mm.h> #include <linux/platform_device.h> #include <linux/module.h> -#include <linux/gfp.h> #include <asm/page.h> #include <linux/swap.h> #include <linux/highmem.h> @@ -74,14 +67,13 @@ unsigned long asic_phy_base; unsigned long asic_base; EXPORT_SYMBOL(asic_base); /* Exported for testing */ struct resource *gp_resources; -static bool usb_configured; /* * Don't recommend to use it directly, it is usually used by kernel internally. * Portable code should be using interfaces such as ioremp, dma_map_single, etc. */ -unsigned long phys_to_bus_offset; -EXPORT_SYMBOL(phys_to_bus_offset); +unsigned long phys_to_dma_offset; +EXPORT_SYMBOL(phys_to_dma_offset); /* * @@ -97,101 +89,19 @@ struct resource asic_resource = { }; /* - * - * USB Host Resource Definition - * - */ - -static struct resource ehci_resources[] = { - { - .parent = &asic_resource, - .start = 0, - .end = 0xff, - .flags = IORESOURCE_MEM, - }, - { - .start = irq_usbehci, - .end = irq_usbehci, - .flags = IORESOURCE_IRQ, - }, -}; - -static u64 ehci_dmamask = DMA_BIT_MASK(32); - -static struct platform_device ehci_device = { - .name = "powertv-ehci", - .id = 0, - .num_resources = 2, - .resource = ehci_resources, - .dev = { - .dma_mask = &ehci_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, -}; - -static struct resource ohci_resources[] = { - { - .parent = &asic_resource, - .start = 0, - .end = 0xff, - .flags = IORESOURCE_MEM, - }, - { - .start = irq_usbohci, - .end = irq_usbohci, - .flags = IORESOURCE_IRQ, - }, -}; - -static u64 ohci_dmamask = DMA_BIT_MASK(32); - -static struct platform_device ohci_device = { - .name = "powertv-ohci", - .id = 0, - .num_resources = 2, - .resource = ohci_resources, - .dev = { - .dma_mask = &ohci_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, -}; - -static struct platform_device *platform_devices[] = { - &ehci_device, - &ohci_device, -}; - -/* - * - * Platform Configuration and Device Initialization - * - */ -static void __init fs_update(int pe, int md, int sdiv, int disable_div_by_3) -{ - int en_prg, byp, pwr, nsb, val; - int sout; - - sout = 1; - en_prg = 1; - byp = 0; - nsb = 1; - pwr = 1; - - val = ((sdiv << 29) | (md << 24) | (pe<<8) | (sout<<3) | (byp<<2) | - (nsb<<1) | (disable_div_by_3<<5)); - - asic_write(val, usb_fs); - asic_write(val | (en_prg<<4), usb_fs); - asic_write(val | (en_prg<<4) | pwr, usb_fs); -} - -/* * Allow override of bootloader-specified model + * Returns zero on success, a negative errno value on failure. This parameter + * allows overriding of the bootloader-specified model. */ static char __initdata cmdline[COMMAND_LINE_SIZE]; #define FORCEFAMILY_PARAM "forcefamily" +/* + * check_forcefamily - check for, and parse, forcefamily command line parameter + * @forced_family: Pointer to two-character array in which to store the + * value of the forcedfamily parameter, if any. + */ static __init int check_forcefamily(unsigned char forced_family[2]) { const char *p; @@ -231,14 +141,10 @@ static __init int check_forcefamily(unsigned char forced_family[2]) */ static __init noinline void platform_set_family(void) { -#define BOOTLDRFAMILY(byte1, byte0) (((byte1) << 8) | (byte0)) - unsigned char forced_family[2]; unsigned short bootldr_family; - check_forcefamily(forced_family); - - if (forced_family[0] != '\0' && forced_family[1] != '\0') + if (check_forcefamily(forced_family) == 0) bootldr_family = BOOTLDRFAMILY(forced_family[0], forced_family[1]); else { @@ -289,6 +195,9 @@ static __init noinline void platform_set_family(void) case BOOTLDRFAMILY('F', '1'): platform_family = FAMILY_1500VZF; break; + case BOOTLDRFAMILY('8', '7'): + platform_family = FAMILY_8700; + break; default: platform_family = -1; } @@ -301,24 +210,9 @@ unsigned int platform_get_family(void) EXPORT_SYMBOL(platform_get_family); /* - * \brief usb_eye_configure() for optimizing the USB eye on Calliope. - * - * \param unsigned int value saved to the register. - * - * \return none - * - */ -static void __init usb_eye_configure(unsigned int value) -{ - asic_write(asic_read(crt_spare) | value, crt_spare); -} - -/* * platform_get_asic - determine the ASIC type. * - * \param none - * - * \return ASIC type; ASIC_UNKNOWN if none + * Returns the ASIC type, or ASIC_UNKNOWN if unknown * */ enum asic_type platform_get_asic(void) @@ -328,93 +222,10 @@ enum asic_type platform_get_asic(void) EXPORT_SYMBOL(platform_get_asic); /* - * platform_configure_usb - usb configuration based on platform type. - * @bcm1_usb2_ctl: value for the BCM1_USB2_CTL register, which is - * quirky + * set_register_map - set ASIC register configuration + * @phys_base: Physical address of the base of the ASIC registers + * @map: Description of key ASIC registers */ -static void __init platform_configure_usb(void) -{ - u32 bcm1_usb2_ctl; - - if (usb_configured) - return; - - switch (asic) { - case ASIC_ZEUS: - case ASIC_CRONUS: - case ASIC_CRONUSLITE: - fs_update(0x0000, 0x11, 0x02, 0); - bcm1_usb2_ctl = 0x803; - break; - - case ASIC_CALLIOPE: - fs_update(0x0000, 0x11, 0x02, 1); - - switch (platform_family) { - case FAMILY_1500VZE: - break; - - case FAMILY_1500VZF: - usb_eye_configure(0x003c0000); - break; - - default: - usb_eye_configure(0x00300000); - break; - } - - bcm1_usb2_ctl = 0x803; - break; - - default: - pr_err("Unknown ASIC type: %d\n", asic); - break; - } - - /* turn on USB power */ - asic_write(0, usb2_strap); - /* Enable all OHCI interrupts */ - asic_write(bcm1_usb2_ctl, usb2_control); - /* USB2_STBUS_OBC store32/load32 */ - asic_write(3, usb2_stbus_obc); - /* USB2_STBUS_MESS_SIZE 2 packets */ - asic_write(1, usb2_stbus_mess_size); - /* USB2_STBUS_CHUNK_SIZE 2 packets */ - asic_write(1, usb2_stbus_chunk_size); - - usb_configured = true; -} - -/* - * Set up the USB EHCI interface - */ -void platform_configure_usb_ehci() -{ - platform_configure_usb(); -} - -/* - * Set up the USB OHCI interface - */ -void platform_configure_usb_ohci() -{ - platform_configure_usb(); -} - -/* - * Shut the USB EHCI interface down--currently a NOP - */ -void platform_unconfigure_usb_ehci() -{ -} - -/* - * Shut the USB OHCI interface down--currently a NOP - */ -void platform_unconfigure_usb_ohci() -{ -} - static void __init set_register_map(unsigned long phys_base, const struct register_map *map) { @@ -472,6 +283,9 @@ void __init configure_platform(void) * it*/ platform_features = FFS_CAPABLE | DISPLAY_CAPABLE; + /* Cronus and Cronus Lite have the same register map */ + set_register_map(CRONUS_IO_BASE, &cronus_register_map); + /* ASIC version will determine if this is a real CronusLite or * Castrati(Cronus) */ chipversion = asic_read(chipver3) << 24; @@ -484,8 +298,6 @@ void __init configure_platform(void) else asic = ASIC_CRONUSLITE; - /* Cronus and Cronus Lite have the same register map */ - set_register_map(CRONUS_IO_BASE, &cronus_register_map); gp_resources = non_dvr_cronuslite_resources; pr_info("Platform: 4600 - %s, NON_DVR_CAPABLE, " "chipversion=0x%08X\n", @@ -525,6 +337,15 @@ void __init configure_platform(void) "DVR_CAPABLE\n"); break; + case FAMILY_8700: + platform_features = FFS_CAPABLE | PCIE_CAPABLE; + asic = ASIC_GAIA; + set_register_map(GAIA_IO_BASE, &gaia_register_map); + gp_resources = dvr_gaia_resources; + + pr_info("Platform: 8700 - GAIA, DVR_CAPABLE\n"); + break; + default: pr_crit("Platform: UNKNOWN PLATFORM\n"); break; @@ -532,10 +353,10 @@ void __init configure_platform(void) switch (asic) { case ASIC_ZEUS: - phys_to_bus_offset = 0x30000000; + phys_to_dma_offset = 0x30000000; break; case ASIC_CALLIOPE: - phys_to_bus_offset = 0x10000000; + phys_to_dma_offset = 0x10000000; break; case ASIC_CRONUSLITE: /* Fall through */ @@ -545,42 +366,16 @@ void __init configure_platform(void) * 0x2XXXXXXX. If 0x10000000 aliases into 0x60000000- * 0x6XXXXXXX, the offset should be 0x50000000, not 0x10000000. */ - phys_to_bus_offset = 0x10000000; + phys_to_dma_offset = 0x10000000; break; default: - phys_to_bus_offset = 0x00000000; + phys_to_dma_offset = 0x00000000; break; } } -/** - * platform_devices_init - sets up USB device resourse. - */ -static int __init platform_devices_init(void) -{ - pr_notice("%s: ----- Initializing USB resources -----\n", __func__); - - asic_resource.start = asic_phy_base; - asic_resource.end += asic_resource.start; - - ehci_resources[0].start = asic_reg_phys_addr(ehci_hcapbase); - ehci_resources[0].end += ehci_resources[0].start; - - ohci_resources[0].start = asic_reg_phys_addr(ohci_hc_revision); - ohci_resources[0].end += ohci_resources[0].start; - - set_io_port_base(0); - - platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); - - return 0; -} - -arch_initcall(platform_devices_init); - /* - * - * BOOTMEM ALLOCATION + * RESOURCE ALLOCATION * */ /* @@ -602,7 +397,7 @@ void __init platform_alloc_bootmem(void) int size = gp_resources[i].end - gp_resources[i].start + 1; if ((gp_resources[i].start != 0) && ((gp_resources[i].flags & IORESOURCE_MEM) != 0)) { - reserve_bootmem(bus_to_phys(gp_resources[i].start), + reserve_bootmem(dma_to_phys(gp_resources[i].start), size, 0); total += gp_resources[i].end - gp_resources[i].start + 1; @@ -626,7 +421,7 @@ void __init platform_alloc_bootmem(void) else { gp_resources[i].start = - phys_to_bus(virt_to_phys(mem)); + phys_to_dma(virt_to_phys(mem)); gp_resources[i].end = gp_resources[i].start + size - 1; total += size; @@ -690,7 +485,7 @@ static void __init pmem_setup_resource(void) if (resource && pmemaddr && pmemlen) { /* The address provided by bootloader is in kseg0. Convert to * a bus address. */ - resource->start = phys_to_bus(pmemaddr - 0x80000000); + resource->start = phys_to_dma(pmemaddr - 0x80000000); resource->end = resource->start + pmemlen - 1; pr_info("persistent memory: start=0x%x end=0x%x\n", |