diff options
Diffstat (limited to 'arch/mips/alchemy/devboards/db1550.c')
| -rw-r--r-- | arch/mips/alchemy/devboards/db1550.c | 192 |
1 files changed, 149 insertions, 43 deletions
diff --git a/arch/mips/alchemy/devboards/db1550.c b/arch/mips/alchemy/devboards/db1550.c index 9eb7906..5a9ae60 100644 --- a/arch/mips/alchemy/devboards/db1550.c +++ b/arch/mips/alchemy/devboards/db1550.c @@ -1,5 +1,5 @@ /* - * Alchemy Db1550 board support + * Alchemy Db1550/Pb1550 board support * * (c) 2011 Manuel Lauss <manuel.lauss@googlemail.com> */ @@ -17,34 +17,29 @@ #include <linux/pm.h> #include <linux/spi/spi.h> #include <linux/spi/flash.h> +#include <asm/bootinfo.h> #include <asm/mach-au1x00/au1000.h> #include <asm/mach-au1x00/au1xxx_eth.h> #include <asm/mach-au1x00/au1xxx_dbdma.h> #include <asm/mach-au1x00/au1xxx_psc.h> #include <asm/mach-au1x00/au1550_spi.h> +#include <asm/mach-au1x00/au1550nd.h> #include <asm/mach-db1x00/bcsr.h> #include <prom.h> #include "platform.h" - -const char *get_system_type(void) -{ - return "DB1550"; -} - static void __init db1550_hw_setup(void) { void __iomem *base; - alchemy_gpio_direction_output(203, 0); /* red led on */ - /* complete SPI setup: link psc0_intclk to a 48MHz source, - * and assign GPIO16 to PSC0_SYNC1 (SPI cs# line) + * and assign GPIO16 to PSC0_SYNC1 (SPI cs# line) as well as PSC1_SYNC + * for AC97 on PB1550. */ base = (void __iomem *)SYS_CLKSRC; __raw_writel(__raw_readl(base) | 0x000001e0, base); base = (void __iomem *)SYS_PINFUNC; - __raw_writel(__raw_readl(base) | 1, base); + __raw_writel(__raw_readl(base) | 1 | SYS_PF_PSC1_S1, base); wmb(); /* reset the AC97 codec now, the reset time in the psc-ac97 driver @@ -57,23 +52,27 @@ static void __init db1550_hw_setup(void) wmb(); __raw_writel(PSC_AC97RST_RST, base + PSC_AC97RST_OFFSET); wmb(); - - alchemy_gpio_direction_output(202, 0); /* green led on */ } -void __init board_setup(void) +int __init db1550_board_setup(void) { unsigned short whoami; bcsr_init(DB1550_BCSR_PHYS_ADDR, DB1550_BCSR_PHYS_ADDR + DB1550_BCSR_HEXLED_OFS); - whoami = bcsr_read(BCSR_WHOAMI); - printk(KERN_INFO "Alchemy/AMD DB1550 Board, CPLD Rev %d" - " Board-ID %d Daughtercard ID %d\n", + whoami = bcsr_read(BCSR_WHOAMI); /* PB1550 hexled offset differs */ + if ((BCSR_WHOAMI_BOARD(whoami) == BCSR_WHOAMI_PB1550_SDR) || + (BCSR_WHOAMI_BOARD(whoami) == BCSR_WHOAMI_PB1550_DDR)) + bcsr_init(PB1550_BCSR_PHYS_ADDR, + PB1550_BCSR_PHYS_ADDR + PB1550_BCSR_HEXLED_OFS); + + pr_info("Alchemy/AMD %s Board, CPLD Rev %d Board-ID %d " \ + "Daughtercard ID %d\n", get_system_type(), (whoami >> 4) & 0xf, (whoami >> 8) & 0xf, whoami & 0xf); db1550_hw_setup(); + return 0; } /*****************************************************************************/ @@ -194,6 +193,39 @@ static struct platform_device db1550_nand_dev = { } }; +static struct au1550nd_platdata pb1550_nand_pd = { + .parts = db1550_nand_parts, + .num_parts = ARRAY_SIZE(db1550_nand_parts), + .devwidth = 0, /* x8 NAND default, needs fixing up */ +}; + +static struct platform_device pb1550_nand_dev = { + .name = "au1550-nand", + .id = -1, + .resource = db1550_nand_res, + .num_resources = ARRAY_SIZE(db1550_nand_res), + .dev = { + .platform_data = &pb1550_nand_pd, + }, +}; + +static void __init pb1550_nand_setup(void) +{ + int boot_swapboot = (au_readl(MEM_STSTAT) & (0x7 << 1)) | + ((bcsr_read(BCSR_STATUS) >> 6) & 0x1); + + gpio_direction_input(206); /* de-assert NAND CS# */ + switch (boot_swapboot) { + case 0: case 2: case 8: case 0xC: case 0xD: + /* x16 NAND Flash */ + pb1550_nand_pd.devwidth = 1; + /* fallthrough */ + case 1: case 3: case 9: case 0xE: case 0xF: + /* x8 NAND, already set up */ + platform_device_register(&pb1550_nand_dev); + } +} + /**********************************************************************/ static struct resource au1550_psc0_res[] = { @@ -394,6 +426,29 @@ static int db1550_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin) return -1; } +static int pb1550_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin) +{ + if ((slot < 12) || (slot > 13) || pin == 0) + return -1; + if (slot == 12) { + switch (pin) { + case 1: return AU1500_PCI_INTB; + case 2: return AU1500_PCI_INTC; + case 3: return AU1500_PCI_INTD; + case 4: return AU1500_PCI_INTA; + } + } + if (slot == 13) { + switch (pin) { + case 1: return AU1500_PCI_INTA; + case 2: return AU1500_PCI_INTB; + case 3: return AU1500_PCI_INTC; + case 4: return AU1500_PCI_INTD; + } + } + return -1; +} + static struct resource alchemy_pci_host_res[] = { [0] = { .start = AU1500_PCI_PHYS_ADDR, @@ -417,7 +472,6 @@ static struct platform_device db1550_pci_host_dev = { /**********************************************************************/ static struct platform_device *db1550_devs[] __initdata = { - &db1550_nand_dev, &db1550_i2c_dev, &db1550_ac97_dev, &db1550_spi_dev, @@ -430,15 +484,16 @@ static struct platform_device *db1550_devs[] __initdata = { }; /* must be arch_initcall; MIPS PCI scans busses in a subsys_initcall */ -static int __init db1550_pci_init(void) +int __init db1550_pci_setup(int id) { + if (id) + db1550_pci_pd.board_map_irq = pb1550_map_pci_irq; return platform_device_register(&db1550_pci_host_dev); } -arch_initcall(db1550_pci_init); -static int __init db1550_dev_init(void) +static void __init db1550_devices(void) { - int swapped; + alchemy_gpio_direction_output(203, 0); /* red led on */ irq_set_irq_type(AU1550_GPIO0_INT, IRQ_TYPE_EDGE_BOTH); /* CD0# */ irq_set_irq_type(AU1550_GPIO1_INT, IRQ_TYPE_EDGE_BOTH); /* CD1# */ @@ -447,6 +502,75 @@ static int __init db1550_dev_init(void) irq_set_irq_type(AU1550_GPIO21_INT, IRQ_TYPE_LEVEL_LOW); /* STSCHG0# */ irq_set_irq_type(AU1550_GPIO22_INT, IRQ_TYPE_LEVEL_LOW); /* STSCHG1# */ + db1x_register_pcmcia_socket( + AU1000_PCMCIA_ATTR_PHYS_ADDR, + AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1, + AU1000_PCMCIA_MEM_PHYS_ADDR, + AU1000_PCMCIA_MEM_PHYS_ADDR + 0x000400000 - 1, + AU1000_PCMCIA_IO_PHYS_ADDR, + AU1000_PCMCIA_IO_PHYS_ADDR + 0x000010000 - 1, + AU1550_GPIO3_INT, AU1550_GPIO0_INT, + /*AU1550_GPIO21_INT*/0, 0, 0); + + db1x_register_pcmcia_socket( + AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004000000, + AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004400000 - 1, + AU1000_PCMCIA_MEM_PHYS_ADDR + 0x004000000, + AU1000_PCMCIA_MEM_PHYS_ADDR + 0x004400000 - 1, + AU1000_PCMCIA_IO_PHYS_ADDR + 0x004000000, + AU1000_PCMCIA_IO_PHYS_ADDR + 0x004010000 - 1, + AU1550_GPIO5_INT, AU1550_GPIO1_INT, + /*AU1550_GPIO22_INT*/0, 0, 1); + + platform_device_register(&db1550_nand_dev); + + alchemy_gpio_direction_output(202, 0); /* green led on */ +} + +static void __init pb1550_devices(void) +{ + irq_set_irq_type(AU1550_GPIO0_INT, IRQ_TYPE_LEVEL_LOW); + irq_set_irq_type(AU1550_GPIO1_INT, IRQ_TYPE_LEVEL_LOW); + irq_set_irq_type(AU1550_GPIO201_205_INT, IRQ_TYPE_LEVEL_HIGH); + + /* enable both PCMCIA card irqs in the shared line */ + alchemy_gpio2_enable_int(201); /* socket 0 card irq */ + alchemy_gpio2_enable_int(202); /* socket 1 card irq */ + + /* Pb1550, like all others, also has statuschange irqs; however they're + * wired up on one of the Au1550's shared GPIO201_205 line, which also + * services the PCMCIA card interrupts. So we ignore statuschange and + * use the GPIO201_205 exclusively for card interrupts, since a) pcmcia + * drivers are used to shared irqs and b) statuschange isn't really use- + * ful anyway. + */ + db1x_register_pcmcia_socket( + AU1000_PCMCIA_ATTR_PHYS_ADDR, + AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1, + AU1000_PCMCIA_MEM_PHYS_ADDR, + AU1000_PCMCIA_MEM_PHYS_ADDR + 0x000400000 - 1, + AU1000_PCMCIA_IO_PHYS_ADDR, + AU1000_PCMCIA_IO_PHYS_ADDR + 0x000010000 - 1, + AU1550_GPIO201_205_INT, AU1550_GPIO0_INT, 0, 0, 0); + + db1x_register_pcmcia_socket( + AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x008000000, + AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x008400000 - 1, + AU1000_PCMCIA_MEM_PHYS_ADDR + 0x008000000, + AU1000_PCMCIA_MEM_PHYS_ADDR + 0x008400000 - 1, + AU1000_PCMCIA_IO_PHYS_ADDR + 0x008000000, + AU1000_PCMCIA_IO_PHYS_ADDR + 0x008010000 - 1, + AU1550_GPIO201_205_INT, AU1550_GPIO1_INT, 0, 0, 1); + + pb1550_nand_setup(); +} + +int __init db1550_dev_setup(void) +{ + int swapped, id; + + id = (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) != BCSR_WHOAMI_DB1550); + i2c_register_board_info(0, db1550_i2c_devs, ARRAY_SIZE(db1550_i2c_devs)); spi_register_board_info(db1550_spi_devs, @@ -467,29 +591,11 @@ static int __init db1550_dev_init(void) (void __iomem *)KSEG1ADDR(AU1550_PSC2_PHYS_ADDR) + PSC_SEL_OFFSET); wmb(); - db1x_register_pcmcia_socket( - AU1000_PCMCIA_ATTR_PHYS_ADDR, - AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1, - AU1000_PCMCIA_MEM_PHYS_ADDR, - AU1000_PCMCIA_MEM_PHYS_ADDR + 0x000400000 - 1, - AU1000_PCMCIA_IO_PHYS_ADDR, - AU1000_PCMCIA_IO_PHYS_ADDR + 0x000010000 - 1, - AU1550_GPIO3_INT, AU1550_GPIO0_INT, - /*AU1550_GPIO21_INT*/0, 0, 0); - - db1x_register_pcmcia_socket( - AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004000000, - AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004400000 - 1, - AU1000_PCMCIA_MEM_PHYS_ADDR + 0x004000000, - AU1000_PCMCIA_MEM_PHYS_ADDR + 0x004400000 - 1, - AU1000_PCMCIA_IO_PHYS_ADDR + 0x004000000, - AU1000_PCMCIA_IO_PHYS_ADDR + 0x004010000 - 1, - AU1550_GPIO5_INT, AU1550_GPIO1_INT, - /*AU1550_GPIO22_INT*/0, 0, 1); + id ? pb1550_devices() : db1550_devices(); - swapped = bcsr_read(BCSR_STATUS) & BCSR_STATUS_DB1000_SWAPBOOT; + swapped = bcsr_read(BCSR_STATUS) & + (id ? BCSR_STATUS_PB1550_SWAPBOOT : BCSR_STATUS_DB1000_SWAPBOOT); db1x_register_norflash(128 << 20, 4, swapped); return platform_add_devices(db1550_devs, ARRAY_SIZE(db1550_devs)); } -device_initcall(db1550_dev_init); |
