diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mach-kirkwood/common.c')
| -rw-r--r-- | ANDROID_3.4.5/arch/arm/mach-kirkwood/common.c | 549 |
1 files changed, 0 insertions, 549 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mach-kirkwood/common.c b/ANDROID_3.4.5/arch/arm/mach-kirkwood/common.c deleted file mode 100644 index a02cae88..00000000 --- a/ANDROID_3.4.5/arch/arm/mach-kirkwood/common.c +++ /dev/null @@ -1,549 +0,0 @@ -/* - * arch/arm/mach-kirkwood/common.c - * - * Core functions for Marvell Kirkwood SoCs - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/serial_8250.h> -#include <linux/ata_platform.h> -#include <linux/mtd/nand.h> -#include <linux/dma-mapping.h> -#include <net/dsa.h> -#include <asm/page.h> -#include <asm/timex.h> -#include <asm/kexec.h> -#include <asm/mach/map.h> -#include <asm/mach/time.h> -#include <mach/kirkwood.h> -#include <mach/bridge-regs.h> -#include <plat/audio.h> -#include <plat/cache-feroceon-l2.h> -#include <plat/mvsdio.h> -#include <plat/orion_nand.h> -#include <plat/ehci-orion.h> -#include <plat/common.h> -#include <plat/time.h> -#include <plat/addr-map.h> -#include "common.h" - -/***************************************************************************** - * 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_PCIE1_IO_VIRT_BASE, - .pfn = __phys_to_pfn(KIRKWOOD_PCIE1_IO_PHYS_BASE), - .length = KIRKWOOD_PCIE1_IO_SIZE, - .type = MT_DEVICE, - }, { - .virtual = KIRKWOOD_REGS_VIRT_BASE, - .pfn = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE), - .length = KIRKWOOD_REGS_SIZE, - .type = MT_DEVICE, - }, -}; - -void __init kirkwood_map_io(void) -{ - iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc)); -} - -/* - * Default clock control bits. Any bit _not_ set in this variable - * will be cleared from the hardware after platform devices have been - * registered. Some reserved bits must be set to 1. - */ -unsigned int kirkwood_clk_ctrl = CGC_DUNIT | CGC_RESERVED; - - -/***************************************************************************** - * EHCI0 - ****************************************************************************/ -void __init kirkwood_ehci_init(void) -{ - kirkwood_clk_ctrl |= CGC_USB0; - orion_ehci_init(USB_PHYS_BASE, IRQ_KIRKWOOD_USB, EHCI_PHY_NA); -} - - -/***************************************************************************** - * GE00 - ****************************************************************************/ -void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data) -{ - kirkwood_clk_ctrl |= CGC_GE0; - - orion_ge00_init(eth_data, - GE00_PHYS_BASE, IRQ_KIRKWOOD_GE00_SUM, - IRQ_KIRKWOOD_GE00_ERR, kirkwood_tclk); -} - - -/***************************************************************************** - * GE01 - ****************************************************************************/ -void __init kirkwood_ge01_init(struct mv643xx_eth_platform_data *eth_data) -{ - - kirkwood_clk_ctrl |= CGC_GE1; - - orion_ge01_init(eth_data, - GE01_PHYS_BASE, IRQ_KIRKWOOD_GE01_SUM, - IRQ_KIRKWOOD_GE01_ERR, kirkwood_tclk); -} - - -/***************************************************************************** - * 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 orion_nand_data kirkwood_nand_data = { - .cle = 0, - .ale = 1, - .width = 8, -}; - -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, -}; - -void __init kirkwood_nand_init(struct mtd_partition *parts, int nr_parts, - int chip_delay) -{ - kirkwood_clk_ctrl |= CGC_RUNIT; - 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_clk_ctrl |= CGC_RUNIT; - 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 void __init kirkwood_rtc_init(void) -{ - orion_rtc_init(RTC_PHYS_BASE, IRQ_KIRKWOOD_RTC); -} - - -/***************************************************************************** - * SATA - ****************************************************************************/ -void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data) -{ - kirkwood_clk_ctrl |= CGC_SATA0; - if (sata_data->n_ports > 1) - kirkwood_clk_ctrl |= CGC_SATA1; - - 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, - }, - [1] = { - .start = IRQ_KIRKWOOD_SDIO, - .end = IRQ_KIRKWOOD_SDIO, - .flags = IORESOURCE_IRQ, - }, -}; - -static u64 mvsdio_dmamask = DMA_BIT_MASK(32); - -static struct platform_device kirkwood_sdio = { - .name = "mvsdio", - .id = -1, - .dev = { - .dma_mask = &mvsdio_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, - .num_resources = ARRAY_SIZE(mvsdio_resources), - .resource = mvsdio_resources, -}; - -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_clk_ctrl |= CGC_SDIO; - kirkwood_sdio.dev.platform_data = mvsdio_data; - platform_device_register(&kirkwood_sdio); -} - - -/***************************************************************************** - * SPI - ****************************************************************************/ -void __init kirkwood_spi_init() -{ - kirkwood_clk_ctrl |= CGC_RUNIT; - orion_spi_init(SPI_PHYS_BASE, kirkwood_tclk); -} - - -/***************************************************************************** - * I2C - ****************************************************************************/ -void __init kirkwood_i2c_init(void) -{ - orion_i2c_init(I2C_PHYS_BASE, IRQ_KIRKWOOD_TWSI, 8); -} - - -/***************************************************************************** - * UART0 - ****************************************************************************/ - -void __init kirkwood_uart0_init(void) -{ - orion_uart0_init(UART0_VIRT_BASE, UART0_PHYS_BASE, - IRQ_KIRKWOOD_UART_0, kirkwood_tclk); -} - - -/***************************************************************************** - * UART1 - ****************************************************************************/ -void __init kirkwood_uart1_init(void) -{ - orion_uart1_init(UART1_VIRT_BASE, UART1_PHYS_BASE, - IRQ_KIRKWOOD_UART_1, kirkwood_tclk); -} - -/***************************************************************************** - * Cryptographic Engines and Security Accelerator (CESA) - ****************************************************************************/ -void __init kirkwood_crypto_init(void) -{ - kirkwood_clk_ctrl |= CGC_CRYPTO; - orion_crypto_init(CRYPTO_PHYS_BASE, KIRKWOOD_SRAM_PHYS_BASE, - KIRKWOOD_SRAM_SIZE, IRQ_KIRKWOOD_CRYPTO); -} - - -/***************************************************************************** - * XOR0 - ****************************************************************************/ -void __init kirkwood_xor0_init(void) -{ - kirkwood_clk_ctrl |= CGC_XOR0; - - 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) -{ - kirkwood_clk_ctrl |= CGC_XOR1; - - 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(kirkwood_tclk); -} - - -/***************************************************************************** - * Time handling - ****************************************************************************/ -void __init kirkwood_init_early(void) -{ - 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; -} - -static 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); -} - -struct sys_timer kirkwood_timer = { - .init = kirkwood_timer_init, -}; - -/***************************************************************************** - * Audio - ****************************************************************************/ -static struct resource kirkwood_i2s_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 kirkwood_asoc_platform_data kirkwood_i2s_data = { - .burst = 128, -}; - -static struct platform_device kirkwood_i2s_device = { - .name = "kirkwood-i2s", - .id = -1, - .num_resources = ARRAY_SIZE(kirkwood_i2s_resources), - .resource = kirkwood_i2s_resources, - .dev = { - .platform_data = &kirkwood_i2s_data, - }, -}; - -static struct platform_device kirkwood_pcm_device = { - .name = "kirkwood-pcm-audio", - .id = -1, -}; - -void __init kirkwood_audio_init(void) -{ - kirkwood_clk_ctrl |= CGC_AUDIO; - platform_device_register(&kirkwood_i2s_device); - platform_device_register(&kirkwood_pcm_device); -} - -/***************************************************************************** - * General - ****************************************************************************/ -/* - * 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"; - } -} - -void __init kirkwood_l2_init(void) -{ -#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 -} - -void __init kirkwood_init(void) -{ - printk(KERN_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); - - kirkwood_setup_cpu_mbus(); - -#ifdef CONFIG_CACHE_FEROCEON_L2 - kirkwood_l2_init(); -#endif - - /* internal devices that every board has */ - kirkwood_rtc_init(); - kirkwood_wdt_init(); - kirkwood_xor0_init(); - kirkwood_xor1_init(); - kirkwood_crypto_init(); - -#ifdef CONFIG_KEXEC - kexec_reinit = kirkwood_enable_pcie; -#endif -} - -static int __init kirkwood_clock_gate(void) -{ - unsigned int curr = readl(CLOCK_GATING_CTRL); - u32 dev, rev; - - kirkwood_pcie_id(&dev, &rev); - printk(KERN_DEBUG "Gating clock of unused units\n"); - printk(KERN_DEBUG "before: 0x%08x\n", curr); - - /* Make sure those units are accessible */ - writel(curr | CGC_SATA0 | CGC_SATA1 | CGC_PEX0 | CGC_PEX1, CLOCK_GATING_CTRL); - - /* For SATA: first shutdown the phy */ - if (!(kirkwood_clk_ctrl & CGC_SATA0)) { - /* 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); - } - if (!(kirkwood_clk_ctrl & CGC_SATA1)) { - /* 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); - } - - /* For PCIe: first shutdown the phy */ - if (!(kirkwood_clk_ctrl & CGC_PEX0)) { - 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); - } - - /* For PCIe 1: first shutdown the phy */ - if (dev == MV88F6282_DEV_ID) { - if (!(kirkwood_clk_ctrl & CGC_PEX1)) { - 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); - } - } else /* keep this bit set for devices that don't have PCIe1 */ - kirkwood_clk_ctrl |= CGC_PEX1; - - /* Now gate clock the required units */ - writel(kirkwood_clk_ctrl, CLOCK_GATING_CTRL); - printk(KERN_DEBUG " after: 0x%08x\n", readl(CLOCK_GATING_CTRL)); - - return 0; -} -late_initcall(kirkwood_clock_gate); - -void kirkwood_restart(char 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) - ; -} |