diff options
Diffstat (limited to 'arch/arm/mach-kirkwood/common.c')
| -rw-r--r-- | arch/arm/mach-kirkwood/common.c | 805 |
1 files changed, 610 insertions, 195 deletions
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c index 5938a3b33cd..255f33a3903 100644 --- a/arch/arm/mach-kirkwood/common.c +++ b/arch/arm/mach-kirkwood/common.c @@ -12,31 +12,44 @@ #include <linux/init.h> #include <linux/platform_device.h> #include <linux/serial_8250.h> -#include <linux/mbus.h> -#include <linux/mv643xx_eth.h> #include <linux/ata_platform.h> +#include <linux/mtd/nand.h> +#include <linux/dma-mapping.h> +#include <linux/clk-provider.h> +#include <linux/spinlock.h> +#include <linux/mv643xx_i2c.h> +#include <linux/timex.h> +#include <linux/kexec.h> +#include <linux/reboot.h> +#include <net/dsa.h> #include <asm/page.h> -#include <asm/timex.h> #include <asm/mach/map.h> #include <asm/mach/time.h> -#include <asm/arch/kirkwood.h> -#include <asm/plat-orion/cache-feroceon-l2.h> -#include <asm/plat-orion/ehci-orion.h> -#include <asm/plat-orion/orion_nand.h> -#include <asm/plat-orion/time.h> +#include <asm/hardware/cache-feroceon-l2.h> +#include <mach/kirkwood.h> +#include <mach/bridge-regs.h> +#include <linux/platform_data/asoc-kirkwood.h> +#include <linux/platform_data/mmc-mvsdio.h> +#include <linux/platform_data/mtd-orion_nand.h> +#include <linux/platform_data/usb-ehci-orion.h> +#include <plat/common.h> +#include <plat/time.h> +#include <linux/platform_data/dma-mv_xor.h> #include "common.h" +#include "pm.h" + +/* These can go away once Kirkwood uses the mvebu-mbus DT binding */ +#define KIRKWOOD_MBUS_NAND_TARGET 0x01 +#define KIRKWOOD_MBUS_NAND_ATTR 0x2f +#define KIRKWOOD_MBUS_SRAM_TARGET 0x03 +#define KIRKWOOD_MBUS_SRAM_ATTR 0x01 /***************************************************************************** * I/O Address Mapping ****************************************************************************/ static struct map_desc kirkwood_io_desc[] __initdata = { { - .virtual = KIRKWOOD_PCIE_IO_VIRT_BASE, - .pfn = __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE), - .length = KIRKWOOD_PCIE_IO_SIZE, - .type = MT_DEVICE, - }, { - .virtual = KIRKWOOD_REGS_VIRT_BASE, + .virtual = (unsigned long) KIRKWOOD_REGS_VIRT_BASE, .pfn = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE), .length = KIRKWOOD_REGS_SIZE, .type = MT_DEVICE, @@ -48,284 +61,686 @@ void __init kirkwood_map_io(void) iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc)); } - /***************************************************************************** - * EHCI + * CLK tree ****************************************************************************/ -static struct orion_ehci_data kirkwood_ehci_data = { - .dram = &kirkwood_mbus_dram_info, + +static void enable_sata0(void) +{ + /* Enable PLL and IVREF */ + writel(readl(SATA0_PHY_MODE_2) | 0xf, SATA0_PHY_MODE_2); + /* Enable PHY */ + writel(readl(SATA0_IF_CTRL) & ~0x200, SATA0_IF_CTRL); +} + +static void disable_sata0(void) +{ + /* Disable PLL and IVREF */ + writel(readl(SATA0_PHY_MODE_2) & ~0xf, SATA0_PHY_MODE_2); + /* Disable PHY */ + writel(readl(SATA0_IF_CTRL) | 0x200, SATA0_IF_CTRL); +} + +static void enable_sata1(void) +{ + /* Enable PLL and IVREF */ + writel(readl(SATA1_PHY_MODE_2) | 0xf, SATA1_PHY_MODE_2); + /* Enable PHY */ + writel(readl(SATA1_IF_CTRL) & ~0x200, SATA1_IF_CTRL); +} + +static void disable_sata1(void) +{ + /* Disable PLL and IVREF */ + writel(readl(SATA1_PHY_MODE_2) & ~0xf, SATA1_PHY_MODE_2); + /* Disable PHY */ + writel(readl(SATA1_IF_CTRL) | 0x200, SATA1_IF_CTRL); +} + +static void disable_pcie0(void) +{ + writel(readl(PCIE_LINK_CTRL) | 0x10, PCIE_LINK_CTRL); + while (1) + if (readl(PCIE_STATUS) & 0x1) + break; + writel(readl(PCIE_LINK_CTRL) & ~0x10, PCIE_LINK_CTRL); +} + +static void disable_pcie1(void) +{ + u32 dev, rev; + + kirkwood_pcie_id(&dev, &rev); + + if (dev == MV88F6282_DEV_ID) { + writel(readl(PCIE1_LINK_CTRL) | 0x10, PCIE1_LINK_CTRL); + while (1) + if (readl(PCIE1_STATUS) & 0x1) + break; + writel(readl(PCIE1_LINK_CTRL) & ~0x10, PCIE1_LINK_CTRL); + } +} + +/* An extended version of the gated clk. This calls fn_en()/fn_dis + * before enabling/disabling the clock. We use this to turn on/off + * PHYs etc. */ +struct clk_gate_fn { + struct clk_gate gate; + void (*fn_en)(void); + void (*fn_dis)(void); }; -static u64 ehci_dmamask = 0xffffffffUL; +#define to_clk_gate_fn(_gate) container_of(_gate, struct clk_gate_fn, gate) +#define to_clk_gate(_hw) container_of(_hw, struct clk_gate, hw) + +static int clk_gate_fn_enable(struct clk_hw *hw) +{ + struct clk_gate *gate = to_clk_gate(hw); + struct clk_gate_fn *gate_fn = to_clk_gate_fn(gate); + int ret; + + ret = clk_gate_ops.enable(hw); + if (!ret && gate_fn->fn_en) + gate_fn->fn_en(); + + return ret; +} + +static void clk_gate_fn_disable(struct clk_hw *hw) +{ + struct clk_gate *gate = to_clk_gate(hw); + struct clk_gate_fn *gate_fn = to_clk_gate_fn(gate); + + if (gate_fn->fn_dis) + gate_fn->fn_dis(); + + clk_gate_ops.disable(hw); +} + +static struct clk_ops clk_gate_fn_ops; + +static struct clk __init *clk_register_gate_fn(struct device *dev, + const char *name, + const char *parent_name, unsigned long flags, + void __iomem *reg, u8 bit_idx, + u8 clk_gate_flags, spinlock_t *lock, + void (*fn_en)(void), void (*fn_dis)(void)) +{ + struct clk_gate_fn *gate_fn; + struct clk *clk; + struct clk_init_data init; + + gate_fn = kzalloc(sizeof(struct clk_gate_fn), GFP_KERNEL); + if (!gate_fn) { + pr_err("%s: could not allocate gated clk\n", __func__); + return ERR_PTR(-ENOMEM); + } + + init.name = name; + init.ops = &clk_gate_fn_ops; + init.flags = flags; + init.parent_names = (parent_name ? &parent_name : NULL); + init.num_parents = (parent_name ? 1 : 0); + + /* struct clk_gate assignments */ + gate_fn->gate.reg = reg; + gate_fn->gate.bit_idx = bit_idx; + gate_fn->gate.flags = clk_gate_flags; + gate_fn->gate.lock = lock; + gate_fn->gate.hw.init = &init; + gate_fn->fn_en = fn_en; + gate_fn->fn_dis = fn_dis; + + /* ops is the gate ops, but with our enable/disable functions */ + if (clk_gate_fn_ops.enable != clk_gate_fn_enable || + clk_gate_fn_ops.disable != clk_gate_fn_disable) { + clk_gate_fn_ops = clk_gate_ops; + clk_gate_fn_ops.enable = clk_gate_fn_enable; + clk_gate_fn_ops.disable = clk_gate_fn_disable; + } + clk = clk_register(dev, &gate_fn->gate.hw); + + if (IS_ERR(clk)) + kfree(gate_fn); + + return clk; +} + +static DEFINE_SPINLOCK(gating_lock); +static struct clk *tclk; + +static struct clk __init *kirkwood_register_gate(const char *name, u8 bit_idx) +{ + return clk_register_gate(NULL, name, "tclk", 0, CLOCK_GATING_CTRL, + bit_idx, 0, &gating_lock); +} + +static struct clk __init *kirkwood_register_gate_fn(const char *name, + u8 bit_idx, + void (*fn_en)(void), + void (*fn_dis)(void)) +{ + return clk_register_gate_fn(NULL, name, "tclk", 0, CLOCK_GATING_CTRL, + bit_idx, 0, &gating_lock, fn_en, fn_dis); +} + +static struct clk *ge0, *ge1; + +void __init kirkwood_clk_init(void) +{ + struct clk *runit, *sata0, *sata1, *usb0, *sdio; + struct clk *crypto, *xor0, *xor1, *pex0, *pex1, *audio; + + tclk = clk_register_fixed_rate(NULL, "tclk", NULL, + CLK_IS_ROOT, kirkwood_tclk); + + runit = kirkwood_register_gate("runit", CGC_BIT_RUNIT); + ge0 = kirkwood_register_gate("ge0", CGC_BIT_GE0); + ge1 = kirkwood_register_gate("ge1", CGC_BIT_GE1); + sata0 = kirkwood_register_gate_fn("sata0", CGC_BIT_SATA0, + enable_sata0, disable_sata0); + sata1 = kirkwood_register_gate_fn("sata1", CGC_BIT_SATA1, + enable_sata1, disable_sata1); + usb0 = kirkwood_register_gate("usb0", CGC_BIT_USB0); + sdio = kirkwood_register_gate("sdio", CGC_BIT_SDIO); + crypto = kirkwood_register_gate("crypto", CGC_BIT_CRYPTO); + xor0 = kirkwood_register_gate("xor0", CGC_BIT_XOR0); + xor1 = kirkwood_register_gate("xor1", CGC_BIT_XOR1); + pex0 = kirkwood_register_gate_fn("pex0", CGC_BIT_PEX0, + NULL, disable_pcie0); + pex1 = kirkwood_register_gate_fn("pex1", CGC_BIT_PEX1, + NULL, disable_pcie1); + audio = kirkwood_register_gate("audio", CGC_BIT_AUDIO); + kirkwood_register_gate("tdm", CGC_BIT_TDM); + kirkwood_register_gate("tsu", CGC_BIT_TSU); + + /* clkdev entries, mapping clks to devices */ + orion_clkdev_add(NULL, "orion_spi.0", runit); + orion_clkdev_add(NULL, "orion_spi.1", runit); + orion_clkdev_add(NULL, MV643XX_ETH_NAME ".0", ge0); + orion_clkdev_add(NULL, MV643XX_ETH_NAME ".1", ge1); + orion_clkdev_add(NULL, "orion_wdt", tclk); + orion_clkdev_add("0", "sata_mv.0", sata0); + orion_clkdev_add("1", "sata_mv.0", sata1); + orion_clkdev_add(NULL, "orion-ehci.0", usb0); + orion_clkdev_add(NULL, "orion_nand", runit); + orion_clkdev_add(NULL, "mvsdio", sdio); + orion_clkdev_add(NULL, "mv_crypto", crypto); + orion_clkdev_add(NULL, MV_XOR_NAME ".0", xor0); + orion_clkdev_add(NULL, MV_XOR_NAME ".1", xor1); + orion_clkdev_add("0", "pcie", pex0); + orion_clkdev_add("1", "pcie", pex1); + orion_clkdev_add(NULL, "mvebu-audio", audio); + orion_clkdev_add(NULL, MV64XXX_I2C_CTLR_NAME ".0", runit); + orion_clkdev_add(NULL, MV64XXX_I2C_CTLR_NAME ".1", runit); + + /* Marvell says runit is used by SPI, UART, NAND, TWSI, ..., + * so should never be gated. + */ + clk_prepare_enable(runit); +} /***************************************************************************** * EHCI0 ****************************************************************************/ -static struct resource kirkwood_ehci_resources[] = { - { - .start = USB_PHYS_BASE, - .end = USB_PHYS_BASE + 0x0fff, - .flags = IORESOURCE_MEM, - }, { - .start = IRQ_KIRKWOOD_USB, - .end = IRQ_KIRKWOOD_USB, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device kirkwood_ehci = { - .name = "orion-ehci", - .id = 0, - .dev = { - .dma_mask = &ehci_dmamask, - .coherent_dma_mask = 0xffffffff, - .platform_data = &kirkwood_ehci_data, - }, - .resource = kirkwood_ehci_resources, - .num_resources = ARRAY_SIZE(kirkwood_ehci_resources), -}; - void __init kirkwood_ehci_init(void) { - platform_device_register(&kirkwood_ehci); + orion_ehci_init(USB_PHYS_BASE, IRQ_KIRKWOOD_USB, EHCI_PHY_NA); } /***************************************************************************** * GE00 ****************************************************************************/ -struct mv643xx_eth_shared_platform_data kirkwood_ge00_shared_data = { - .t_clk = KIRKWOOD_TCLK, - .dram = &kirkwood_mbus_dram_info, -}; +void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data) +{ + orion_ge00_init(eth_data, + GE00_PHYS_BASE, IRQ_KIRKWOOD_GE00_SUM, + IRQ_KIRKWOOD_GE00_ERR, 1600); + /* The interface forgets the MAC address assigned by u-boot if + the clock is turned off, so claim the clk now. */ + clk_prepare_enable(ge0); +} -static struct resource kirkwood_ge00_shared_resources[] = { - { - .name = "ge00 base", - .start = GE00_PHYS_BASE + 0x2000, - .end = GE00_PHYS_BASE + 0x3fff, - .flags = IORESOURCE_MEM, - }, -}; -static struct platform_device kirkwood_ge00_shared = { - .name = MV643XX_ETH_SHARED_NAME, - .id = 0, - .dev = { - .platform_data = &kirkwood_ge00_shared_data, - }, - .num_resources = 1, - .resource = kirkwood_ge00_shared_resources, +/***************************************************************************** + * GE01 + ****************************************************************************/ +void __init kirkwood_ge01_init(struct mv643xx_eth_platform_data *eth_data) +{ + orion_ge01_init(eth_data, + GE01_PHYS_BASE, IRQ_KIRKWOOD_GE01_SUM, + IRQ_KIRKWOOD_GE01_ERR, 1600); + clk_prepare_enable(ge1); +} + + +/***************************************************************************** + * Ethernet switch + ****************************************************************************/ +void __init kirkwood_ge00_switch_init(struct dsa_platform_data *d, int irq) +{ + orion_ge00_switch_init(d, irq); +} + + +/***************************************************************************** + * NAND flash + ****************************************************************************/ +static struct resource kirkwood_nand_resource = { + .flags = IORESOURCE_MEM, + .start = KIRKWOOD_NAND_MEM_PHYS_BASE, + .end = KIRKWOOD_NAND_MEM_PHYS_BASE + + KIRKWOOD_NAND_MEM_SIZE - 1, }; -static struct resource kirkwood_ge00_resources[] = { - { - .name = "ge00 irq", - .start = IRQ_KIRKWOOD_GE00_SUM, - .end = IRQ_KIRKWOOD_GE00_SUM, - .flags = IORESOURCE_IRQ, - }, +static struct orion_nand_data kirkwood_nand_data = { + .cle = 0, + .ale = 1, + .width = 8, }; -static struct platform_device kirkwood_ge00 = { - .name = MV643XX_ETH_NAME, - .id = 0, +static struct platform_device kirkwood_nand_flash = { + .name = "orion_nand", + .id = -1, + .dev = { + .platform_data = &kirkwood_nand_data, + }, + .resource = &kirkwood_nand_resource, .num_resources = 1, - .resource = kirkwood_ge00_resources, }; -void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data) +void __init kirkwood_nand_init(struct mtd_partition *parts, int nr_parts, + int chip_delay) { - eth_data->shared = &kirkwood_ge00_shared; - kirkwood_ge00.dev.platform_data = eth_data; - - platform_device_register(&kirkwood_ge00_shared); - platform_device_register(&kirkwood_ge00); + kirkwood_nand_data.parts = parts; + kirkwood_nand_data.nr_parts = nr_parts; + kirkwood_nand_data.chip_delay = chip_delay; + platform_device_register(&kirkwood_nand_flash); } +void __init kirkwood_nand_init_rnb(struct mtd_partition *parts, int nr_parts, + int (*dev_ready)(struct mtd_info *)) +{ + kirkwood_nand_data.parts = parts; + kirkwood_nand_data.nr_parts = nr_parts; + kirkwood_nand_data.dev_ready = dev_ready; + platform_device_register(&kirkwood_nand_flash); +} /***************************************************************************** * SoC RTC ****************************************************************************/ -static struct resource kirkwood_rtc_resource = { - .start = RTC_PHYS_BASE, - .end = RTC_PHYS_BASE + SZ_16 - 1, - .flags = IORESOURCE_MEM, -}; - -void __init kirkwood_rtc_init(void) +static void __init kirkwood_rtc_init(void) { - platform_device_register_simple("rtc-mv", -1, &kirkwood_rtc_resource, 1); + orion_rtc_init(RTC_PHYS_BASE, IRQ_KIRKWOOD_RTC); } /***************************************************************************** * SATA ****************************************************************************/ -static struct resource kirkwood_sata_resources[] = { - { - .name = "sata base", - .start = SATA_PHYS_BASE, - .end = SATA_PHYS_BASE + 0x5000 - 1, +void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data) +{ + orion_sata_init(sata_data, SATA_PHYS_BASE, IRQ_KIRKWOOD_SATA); +} + + +/***************************************************************************** + * SD/SDIO/MMC + ****************************************************************************/ +static struct resource mvsdio_resources[] = { + [0] = { + .start = SDIO_PHYS_BASE, + .end = SDIO_PHYS_BASE + SZ_1K - 1, .flags = IORESOURCE_MEM, - }, { - .name = "sata irq", - .start = IRQ_KIRKWOOD_SATA, - .end = IRQ_KIRKWOOD_SATA, + }, + [1] = { + .start = IRQ_KIRKWOOD_SDIO, + .end = IRQ_KIRKWOOD_SDIO, .flags = IORESOURCE_IRQ, }, }; -static struct platform_device kirkwood_sata = { - .name = "sata_mv", - .id = 0, +static u64 mvsdio_dmamask = DMA_BIT_MASK(32); + +static struct platform_device kirkwood_sdio = { + .name = "mvsdio", + .id = -1, .dev = { - .coherent_dma_mask = 0xffffffff, + .dma_mask = &mvsdio_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), }, - .num_resources = ARRAY_SIZE(kirkwood_sata_resources), - .resource = kirkwood_sata_resources, + .num_resources = ARRAY_SIZE(mvsdio_resources), + .resource = mvsdio_resources, }; -void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data) +void __init kirkwood_sdio_init(struct mvsdio_platform_data *mvsdio_data) +{ + u32 dev, rev; + + kirkwood_pcie_id(&dev, &rev); + if (rev == 0 && dev != MV88F6282_DEV_ID) /* catch all Kirkwood Z0's */ + mvsdio_data->clock = 100000000; + else + mvsdio_data->clock = 200000000; + kirkwood_sdio.dev.platform_data = mvsdio_data; + platform_device_register(&kirkwood_sdio); +} + + +/***************************************************************************** + * SPI + ****************************************************************************/ +void __init kirkwood_spi_init(void) { - sata_data->dram = &kirkwood_mbus_dram_info; - kirkwood_sata.dev.platform_data = sata_data; - platform_device_register(&kirkwood_sata); + orion_spi_init(SPI_PHYS_BASE); +} + + +/***************************************************************************** + * I2C + ****************************************************************************/ +void __init kirkwood_i2c_init(void) +{ + orion_i2c_init(I2C_PHYS_BASE, IRQ_KIRKWOOD_TWSI, 8); } /***************************************************************************** * UART0 ****************************************************************************/ -static struct plat_serial8250_port kirkwood_uart0_data[] = { - { - .mapbase = UART0_PHYS_BASE, - .membase = (char *)UART0_VIRT_BASE, - .irq = IRQ_KIRKWOOD_UART_0, - .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF, - .iotype = UPIO_MEM, - .regshift = 2, - .uartclk = KIRKWOOD_TCLK, - }, { - }, -}; -static struct resource kirkwood_uart0_resources[] = { +void __init kirkwood_uart0_init(void) +{ + orion_uart0_init(UART0_VIRT_BASE, UART0_PHYS_BASE, + IRQ_KIRKWOOD_UART_0, tclk); +} + + +/***************************************************************************** + * UART1 + ****************************************************************************/ +void __init kirkwood_uart1_init(void) +{ + orion_uart1_init(UART1_VIRT_BASE, UART1_PHYS_BASE, + IRQ_KIRKWOOD_UART_1, tclk); +} + +/***************************************************************************** + * Cryptographic Engines and Security Accelerator (CESA) + ****************************************************************************/ +void __init kirkwood_crypto_init(void) +{ + orion_crypto_init(CRYPTO_PHYS_BASE, KIRKWOOD_SRAM_PHYS_BASE, + KIRKWOOD_SRAM_SIZE, IRQ_KIRKWOOD_CRYPTO); +} + + +/***************************************************************************** + * XOR0 + ****************************************************************************/ +void __init kirkwood_xor0_init(void) +{ + orion_xor0_init(XOR0_PHYS_BASE, XOR0_HIGH_PHYS_BASE, + IRQ_KIRKWOOD_XOR_00, IRQ_KIRKWOOD_XOR_01); +} + + +/***************************************************************************** + * XOR1 + ****************************************************************************/ +void __init kirkwood_xor1_init(void) +{ + orion_xor1_init(XOR1_PHYS_BASE, XOR1_HIGH_PHYS_BASE, + IRQ_KIRKWOOD_XOR_10, IRQ_KIRKWOOD_XOR_11); +} + + +/***************************************************************************** + * Watchdog + ****************************************************************************/ +void __init kirkwood_wdt_init(void) +{ + orion_wdt_init(); +} + +/***************************************************************************** + * CPU idle + ****************************************************************************/ +static struct resource kirkwood_cpuidle_resource[] = { { - .start = UART0_PHYS_BASE, - .end = UART0_PHYS_BASE + 0xff, - .flags = IORESOURCE_MEM, - }, { - .start = IRQ_KIRKWOOD_UART_0, - .end = IRQ_KIRKWOOD_UART_0, - .flags = IORESOURCE_IRQ, + .flags = IORESOURCE_MEM, + .start = DDR_OPERATION_BASE, + .end = DDR_OPERATION_BASE + 3, }, }; -static struct platform_device kirkwood_uart0 = { - .name = "serial8250", - .id = 0, - .dev = { - .platform_data = kirkwood_uart0_data, - }, - .resource = kirkwood_uart0_resources, - .num_resources = ARRAY_SIZE(kirkwood_uart0_resources), +static struct platform_device kirkwood_cpuidle = { + .name = "kirkwood_cpuidle", + .id = -1, + .resource = kirkwood_cpuidle_resource, + .num_resources = 1, }; -void __init kirkwood_uart0_init(void) +void __init kirkwood_cpuidle_init(void) +{ + platform_device_register(&kirkwood_cpuidle); +} + +/***************************************************************************** + * Time handling + ****************************************************************************/ +void __init kirkwood_init_early(void) { - platform_device_register(&kirkwood_uart0); + orion_time_set_base(TIMER_VIRT_BASE); } +int kirkwood_tclk; + +static int __init kirkwood_find_tclk(void) +{ + u32 dev, rev; + + kirkwood_pcie_id(&dev, &rev); + + if (dev == MV88F6281_DEV_ID || dev == MV88F6282_DEV_ID) + if (((readl(SAMPLE_AT_RESET) >> 21) & 1) == 0) + return 200000000; + + return 166666667; +} + +void __init kirkwood_timer_init(void) +{ + kirkwood_tclk = kirkwood_find_tclk(); + + orion_time_init(BRIDGE_VIRT_BASE, BRIDGE_INT_TIMER1_CLR, + IRQ_KIRKWOOD_BRIDGE, kirkwood_tclk); +} /***************************************************************************** - * UART1 + * Audio ****************************************************************************/ -static struct plat_serial8250_port kirkwood_uart1_data[] = { - { - .mapbase = UART1_PHYS_BASE, - .membase = (char *)UART1_VIRT_BASE, - .irq = IRQ_KIRKWOOD_UART_1, - .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF, - .iotype = UPIO_MEM, - .regshift = 2, - .uartclk = KIRKWOOD_TCLK, - }, { +static struct resource kirkwood_audio_resources[] = { + [0] = { + .start = AUDIO_PHYS_BASE, + .end = AUDIO_PHYS_BASE + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_KIRKWOOD_I2S, + .end = IRQ_KIRKWOOD_I2S, + .flags = IORESOURCE_IRQ, }, }; -static struct resource kirkwood_uart1_resources[] = { - { - .start = UART1_PHYS_BASE, - .end = UART1_PHYS_BASE + 0xff, - .flags = IORESOURCE_MEM, - }, { - .start = IRQ_KIRKWOOD_UART_1, - .end = IRQ_KIRKWOOD_UART_1, - .flags = IORESOURCE_IRQ, - }, +static struct kirkwood_asoc_platform_data kirkwood_audio_data = { + .burst = 128, }; -static struct platform_device kirkwood_uart1 = { - .name = "serial8250", - .id = 1, - .dev = { - .platform_data = kirkwood_uart1_data, +static struct platform_device kirkwood_audio_device = { + .name = "mvebu-audio", + .id = -1, + .num_resources = ARRAY_SIZE(kirkwood_audio_resources), + .resource = kirkwood_audio_resources, + .dev = { + .platform_data = &kirkwood_audio_data, }, - .resource = kirkwood_uart1_resources, - .num_resources = ARRAY_SIZE(kirkwood_uart1_resources), }; -void __init kirkwood_uart1_init(void) +void __init kirkwood_audio_init(void) { - platform_device_register(&kirkwood_uart1); + platform_device_register(&kirkwood_audio_device); } - /***************************************************************************** - * Time handling + * CPU Frequency ****************************************************************************/ -static void kirkwood_timer_init(void) -{ - orion_time_init(IRQ_KIRKWOOD_BRIDGE, KIRKWOOD_TCLK); -} +static struct resource kirkwood_cpufreq_resources[] = { + [0] = { + .start = CPU_CONTROL_PHYS, + .end = CPU_CONTROL_PHYS + 3, + .flags = IORESOURCE_MEM, + }, +}; -struct sys_timer kirkwood_timer = { - .init = kirkwood_timer_init, +static struct platform_device kirkwood_cpufreq_device = { + .name = "kirkwood-cpufreq", + .id = -1, + .num_resources = ARRAY_SIZE(kirkwood_cpufreq_resources), + .resource = kirkwood_cpufreq_resources, }; +void __init kirkwood_cpufreq_init(void) +{ + platform_device_register(&kirkwood_cpufreq_device); +} /***************************************************************************** * General ****************************************************************************/ -static char * __init kirkwood_id(void) -{ - switch (readl(DEVICE_ID) & 0x3) { - case 0: - return "88F6180"; - case 1: - return "88F6192"; - case 2: - return "88F6281"; +/* + * Identify device ID and revision. + */ +char * __init kirkwood_id(void) +{ + u32 dev, rev; + + kirkwood_pcie_id(&dev, &rev); + + if (dev == MV88F6281_DEV_ID) { + if (rev == MV88F6281_REV_Z0) + return "MV88F6281-Z0"; + else if (rev == MV88F6281_REV_A0) + return "MV88F6281-A0"; + else if (rev == MV88F6281_REV_A1) + return "MV88F6281-A1"; + else + return "MV88F6281-Rev-Unsupported"; + } else if (dev == MV88F6192_DEV_ID) { + if (rev == MV88F6192_REV_Z0) + return "MV88F6192-Z0"; + else if (rev == MV88F6192_REV_A0) + return "MV88F6192-A0"; + else if (rev == MV88F6192_REV_A1) + return "MV88F6192-A1"; + else + return "MV88F6192-Rev-Unsupported"; + } else if (dev == MV88F6180_DEV_ID) { + if (rev == MV88F6180_REV_A0) + return "MV88F6180-Rev-A0"; + else if (rev == MV88F6180_REV_A1) + return "MV88F6180-Rev-A1"; + else + return "MV88F6180-Rev-Unsupported"; + } else if (dev == MV88F6282_DEV_ID) { + if (rev == MV88F6282_REV_A0) + return "MV88F6282-Rev-A0"; + else if (rev == MV88F6282_REV_A1) + return "MV88F6282-Rev-A1"; + else + return "MV88F6282-Rev-Unsupported"; + } else { + return "Device-Unknown"; } +} - return "unknown 88F6000 variant"; +void __init kirkwood_setup_wins(void) +{ + mvebu_mbus_add_window_by_id(KIRKWOOD_MBUS_NAND_TARGET, + KIRKWOOD_MBUS_NAND_ATTR, + KIRKWOOD_NAND_MEM_PHYS_BASE, + KIRKWOOD_NAND_MEM_SIZE); + mvebu_mbus_add_window_by_id(KIRKWOOD_MBUS_SRAM_TARGET, + KIRKWOOD_MBUS_SRAM_ATTR, + KIRKWOOD_SRAM_PHYS_BASE, + KIRKWOOD_SRAM_SIZE); } -static int __init is_l2_writethrough(void) +void __init kirkwood_l2_init(void) { - return !!(readl(L2_CONFIG_REG) & L2_WRITETHROUGH); +#ifdef CONFIG_CACHE_FEROCEON_L2 +#ifdef CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH + writel(readl(L2_CONFIG_REG) | L2_WRITETHROUGH, L2_CONFIG_REG); + feroceon_l2_init(1); +#else + writel(readl(L2_CONFIG_REG) & ~L2_WRITETHROUGH, L2_CONFIG_REG); + feroceon_l2_init(0); +#endif +#endif } void __init kirkwood_init(void) { - printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n", - kirkwood_id(), KIRKWOOD_TCLK); - - kirkwood_setup_cpu_mbus(); - -#ifdef CONFIG_CACHE_FEROCEON_L2 - feroceon_l2_init(is_l2_writethrough()); + pr_info("Kirkwood: %s, TCLK=%d.\n", kirkwood_id(), kirkwood_tclk); + + /* + * Disable propagation of mbus errors to the CPU local bus, + * as this causes mbus errors (which can occur for example + * for PCI aborts) to throw CPU aborts, which we're not set + * up to deal with. + */ + writel(readl(CPU_CONFIG) & ~CPU_CONFIG_ERROR_PROP, CPU_CONFIG); + + BUG_ON(mvebu_mbus_init("marvell,kirkwood-mbus", + BRIDGE_WINS_BASE, BRIDGE_WINS_SZ, + DDR_WINDOW_CPU_BASE, DDR_WINDOW_CPU_SZ)); + + kirkwood_setup_wins(); + + kirkwood_l2_init(); + + /* Setup root of clk tree */ + kirkwood_clk_init(); + + /* internal devices that every board has */ + kirkwood_rtc_init(); + kirkwood_wdt_init(); + kirkwood_xor0_init(); + kirkwood_xor1_init(); + kirkwood_crypto_init(); + + kirkwood_pm_init(); + kirkwood_cpuidle_init(); +#ifdef CONFIG_KEXEC + kexec_reinit = kirkwood_enable_pcie; #endif } + +void kirkwood_restart(enum reboot_mode mode, const char *cmd) +{ + /* + * Enable soft reset to assert RSTOUTn. + */ + writel(SOFT_RESET_OUT_EN, RSTOUTn_MASK); + + /* + * Assert soft reset. + */ + writel(SOFT_RESET, SYSTEM_SOFT_RESET); + + while (1) + ; +} |