452 lines
14 KiB
C
452 lines
14 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* arch/arm/mach-dove/common.c
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*
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* Core functions for Marvell Dove 88AP510 System On Chip
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*/
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#include <linux/clk-provider.h>
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#include <linux/dma-mapping.h>
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#include <linux/init.h>
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#include <linux/io.h>
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#include <linux/of.h>
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#include <linux/of_platform.h>
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#include <linux/platform_data/dma-mv_xor.h>
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#include <linux/platform_data/usb-ehci-orion.h>
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#include <linux/platform_device.h>
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#include <linux/soc/dove/pmu.h>
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#include <asm/hardware/cache-tauros2.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/time.h>
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#include <plat/common.h>
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#include <plat/irq.h>
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#include <plat/time.h>
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#include "bridge-regs.h"
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#include "pm.h"
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#include "common.h"
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/* These can go away once Dove uses the mvebu-mbus DT binding */
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#define DOVE_MBUS_PCIE0_MEM_TARGET 0x4
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#define DOVE_MBUS_PCIE0_MEM_ATTR 0xe8
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#define DOVE_MBUS_PCIE0_IO_TARGET 0x4
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#define DOVE_MBUS_PCIE0_IO_ATTR 0xe0
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#define DOVE_MBUS_PCIE1_MEM_TARGET 0x8
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#define DOVE_MBUS_PCIE1_MEM_ATTR 0xe8
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#define DOVE_MBUS_PCIE1_IO_TARGET 0x8
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#define DOVE_MBUS_PCIE1_IO_ATTR 0xe0
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#define DOVE_MBUS_CESA_TARGET 0x3
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#define DOVE_MBUS_CESA_ATTR 0x1
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#define DOVE_MBUS_BOOTROM_TARGET 0x1
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#define DOVE_MBUS_BOOTROM_ATTR 0xfd
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#define DOVE_MBUS_SCRATCHPAD_TARGET 0xd
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#define DOVE_MBUS_SCRATCHPAD_ATTR 0x0
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/*****************************************************************************
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* I/O Address Mapping
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****************************************************************************/
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static struct map_desc __maybe_unused dove_io_desc[] __initdata = {
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{
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.virtual = (unsigned long) DOVE_SB_REGS_VIRT_BASE,
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.pfn = __phys_to_pfn(DOVE_SB_REGS_PHYS_BASE),
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.length = DOVE_SB_REGS_SIZE,
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.type = MT_DEVICE,
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}, {
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.virtual = (unsigned long) DOVE_NB_REGS_VIRT_BASE,
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.pfn = __phys_to_pfn(DOVE_NB_REGS_PHYS_BASE),
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.length = DOVE_NB_REGS_SIZE,
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.type = MT_DEVICE,
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},
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};
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void __init dove_map_io(void)
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{
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iotable_init(dove_io_desc, ARRAY_SIZE(dove_io_desc));
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}
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/*****************************************************************************
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* CLK tree
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****************************************************************************/
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static int dove_tclk;
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static DEFINE_SPINLOCK(gating_lock);
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static struct clk *tclk;
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static struct clk __init *dove_register_gate(const char *name,
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const char *parent, u8 bit_idx)
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{
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return clk_register_gate(NULL, name, parent, 0,
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(void __iomem *)CLOCK_GATING_CONTROL,
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bit_idx, 0, &gating_lock);
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}
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static void __init dove_clk_init(void)
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{
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struct clk *usb0, *usb1, *sata, *pex0, *pex1, *sdio0, *sdio1;
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struct clk *nand, *camera, *i2s0, *i2s1, *crypto, *ac97, *pdma;
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struct clk *xor0, *xor1, *ge, *gephy;
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tclk = clk_register_fixed_rate(NULL, "tclk", NULL, 0, dove_tclk);
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usb0 = dove_register_gate("usb0", "tclk", CLOCK_GATING_BIT_USB0);
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usb1 = dove_register_gate("usb1", "tclk", CLOCK_GATING_BIT_USB1);
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sata = dove_register_gate("sata", "tclk", CLOCK_GATING_BIT_SATA);
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pex0 = dove_register_gate("pex0", "tclk", CLOCK_GATING_BIT_PCIE0);
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pex1 = dove_register_gate("pex1", "tclk", CLOCK_GATING_BIT_PCIE1);
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sdio0 = dove_register_gate("sdio0", "tclk", CLOCK_GATING_BIT_SDIO0);
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sdio1 = dove_register_gate("sdio1", "tclk", CLOCK_GATING_BIT_SDIO1);
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nand = dove_register_gate("nand", "tclk", CLOCK_GATING_BIT_NAND);
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camera = dove_register_gate("camera", "tclk", CLOCK_GATING_BIT_CAMERA);
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i2s0 = dove_register_gate("i2s0", "tclk", CLOCK_GATING_BIT_I2S0);
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i2s1 = dove_register_gate("i2s1", "tclk", CLOCK_GATING_BIT_I2S1);
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crypto = dove_register_gate("crypto", "tclk", CLOCK_GATING_BIT_CRYPTO);
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ac97 = dove_register_gate("ac97", "tclk", CLOCK_GATING_BIT_AC97);
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pdma = dove_register_gate("pdma", "tclk", CLOCK_GATING_BIT_PDMA);
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xor0 = dove_register_gate("xor0", "tclk", CLOCK_GATING_BIT_XOR0);
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xor1 = dove_register_gate("xor1", "tclk", CLOCK_GATING_BIT_XOR1);
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gephy = dove_register_gate("gephy", "tclk", CLOCK_GATING_BIT_GIGA_PHY);
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ge = dove_register_gate("ge", "gephy", CLOCK_GATING_BIT_GBE);
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orion_clkdev_add(NULL, "orion_spi.0", tclk);
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orion_clkdev_add(NULL, "orion_spi.1", tclk);
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orion_clkdev_add(NULL, "orion_wdt", tclk);
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orion_clkdev_add(NULL, "mv64xxx_i2c.0", tclk);
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orion_clkdev_add(NULL, "orion-ehci.0", usb0);
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orion_clkdev_add(NULL, "orion-ehci.1", usb1);
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orion_clkdev_add(NULL, "mv643xx_eth_port.0", ge);
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orion_clkdev_add(NULL, "sata_mv.0", sata);
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orion_clkdev_add("0", "pcie", pex0);
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orion_clkdev_add("1", "pcie", pex1);
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orion_clkdev_add(NULL, "sdhci-dove.0", sdio0);
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orion_clkdev_add(NULL, "sdhci-dove.1", sdio1);
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orion_clkdev_add(NULL, "orion_nand", nand);
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orion_clkdev_add(NULL, "cafe1000-ccic.0", camera);
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orion_clkdev_add(NULL, "mvebu-audio.0", i2s0);
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orion_clkdev_add(NULL, "mvebu-audio.1", i2s1);
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orion_clkdev_add(NULL, "mv_crypto", crypto);
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orion_clkdev_add(NULL, "dove-ac97", ac97);
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orion_clkdev_add(NULL, "dove-pdma", pdma);
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orion_clkdev_add(NULL, MV_XOR_NAME ".0", xor0);
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orion_clkdev_add(NULL, MV_XOR_NAME ".1", xor1);
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}
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/*****************************************************************************
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* EHCI0
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****************************************************************************/
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void __init dove_ehci0_init(void)
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{
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orion_ehci_init(DOVE_USB0_PHYS_BASE, IRQ_DOVE_USB0, EHCI_PHY_NA);
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}
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/*****************************************************************************
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* EHCI1
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****************************************************************************/
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void __init dove_ehci1_init(void)
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{
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orion_ehci_1_init(DOVE_USB1_PHYS_BASE, IRQ_DOVE_USB1);
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}
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/*****************************************************************************
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* GE00
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****************************************************************************/
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void __init dove_ge00_init(struct mv643xx_eth_platform_data *eth_data)
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{
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orion_ge00_init(eth_data, DOVE_GE00_PHYS_BASE,
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IRQ_DOVE_GE00_SUM, IRQ_DOVE_GE00_ERR,
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1600);
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}
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/*****************************************************************************
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* SoC RTC
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****************************************************************************/
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static void __init dove_rtc_init(void)
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{
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orion_rtc_init(DOVE_RTC_PHYS_BASE, IRQ_DOVE_RTC);
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}
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/*****************************************************************************
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* SATA
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****************************************************************************/
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void __init dove_sata_init(struct mv_sata_platform_data *sata_data)
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{
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orion_sata_init(sata_data, DOVE_SATA_PHYS_BASE, IRQ_DOVE_SATA);
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}
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/*****************************************************************************
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* UART0
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****************************************************************************/
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void __init dove_uart0_init(void)
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{
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orion_uart0_init(DOVE_UART0_VIRT_BASE, DOVE_UART0_PHYS_BASE,
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IRQ_DOVE_UART_0, tclk);
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}
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/*****************************************************************************
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* UART1
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****************************************************************************/
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void __init dove_uart1_init(void)
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{
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orion_uart1_init(DOVE_UART1_VIRT_BASE, DOVE_UART1_PHYS_BASE,
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IRQ_DOVE_UART_1, tclk);
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}
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/*****************************************************************************
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* UART2
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****************************************************************************/
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void __init dove_uart2_init(void)
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{
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orion_uart2_init(DOVE_UART2_VIRT_BASE, DOVE_UART2_PHYS_BASE,
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IRQ_DOVE_UART_2, tclk);
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}
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/*****************************************************************************
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* UART3
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****************************************************************************/
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void __init dove_uart3_init(void)
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{
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orion_uart3_init(DOVE_UART3_VIRT_BASE, DOVE_UART3_PHYS_BASE,
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IRQ_DOVE_UART_3, tclk);
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}
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/*****************************************************************************
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* SPI
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****************************************************************************/
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void __init dove_spi0_init(void)
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{
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orion_spi_init(DOVE_SPI0_PHYS_BASE);
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}
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void __init dove_spi1_init(void)
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{
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orion_spi_1_init(DOVE_SPI1_PHYS_BASE);
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}
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/*****************************************************************************
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* I2C
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****************************************************************************/
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void __init dove_i2c_init(void)
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{
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orion_i2c_init(DOVE_I2C_PHYS_BASE, IRQ_DOVE_I2C, 10);
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}
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/*****************************************************************************
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* Time handling
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****************************************************************************/
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void __init dove_init_early(void)
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{
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orion_time_set_base(TIMER_VIRT_BASE);
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mvebu_mbus_init("marvell,dove-mbus",
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BRIDGE_WINS_BASE, BRIDGE_WINS_SZ,
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DOVE_MC_WINS_BASE, DOVE_MC_WINS_SZ);
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}
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static int __init dove_find_tclk(void)
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{
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return 166666667;
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}
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void __init dove_timer_init(void)
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{
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dove_tclk = dove_find_tclk();
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orion_time_init(BRIDGE_VIRT_BASE, BRIDGE_INT_TIMER1_CLR,
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IRQ_DOVE_BRIDGE, dove_tclk);
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}
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/*****************************************************************************
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* XOR 0
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****************************************************************************/
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static void __init dove_xor0_init(void)
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{
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orion_xor0_init(DOVE_XOR0_PHYS_BASE, DOVE_XOR0_HIGH_PHYS_BASE,
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IRQ_DOVE_XOR_00, IRQ_DOVE_XOR_01);
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}
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/*****************************************************************************
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* XOR 1
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****************************************************************************/
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static void __init dove_xor1_init(void)
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{
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orion_xor1_init(DOVE_XOR1_PHYS_BASE, DOVE_XOR1_HIGH_PHYS_BASE,
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IRQ_DOVE_XOR_10, IRQ_DOVE_XOR_11);
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}
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/*****************************************************************************
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* SDIO
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****************************************************************************/
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static u64 sdio_dmamask = DMA_BIT_MASK(32);
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static struct resource dove_sdio0_resources[] = {
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{
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.start = DOVE_SDIO0_PHYS_BASE,
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.end = DOVE_SDIO0_PHYS_BASE + 0xff,
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.flags = IORESOURCE_MEM,
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}, {
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.start = IRQ_DOVE_SDIO0,
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.end = IRQ_DOVE_SDIO0,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device dove_sdio0 = {
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.name = "sdhci-dove",
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.id = 0,
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.dev = {
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.dma_mask = &sdio_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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},
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.resource = dove_sdio0_resources,
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.num_resources = ARRAY_SIZE(dove_sdio0_resources),
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};
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void __init dove_sdio0_init(void)
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{
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platform_device_register(&dove_sdio0);
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}
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static struct resource dove_sdio1_resources[] = {
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{
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.start = DOVE_SDIO1_PHYS_BASE,
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.end = DOVE_SDIO1_PHYS_BASE + 0xff,
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.flags = IORESOURCE_MEM,
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}, {
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.start = IRQ_DOVE_SDIO1,
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.end = IRQ_DOVE_SDIO1,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device dove_sdio1 = {
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.name = "sdhci-dove",
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.id = 1,
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.dev = {
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.dma_mask = &sdio_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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},
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.resource = dove_sdio1_resources,
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.num_resources = ARRAY_SIZE(dove_sdio1_resources),
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};
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void __init dove_sdio1_init(void)
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{
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platform_device_register(&dove_sdio1);
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}
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void __init dove_setup_cpu_wins(void)
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{
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/*
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* The PCIe windows will no longer be statically allocated
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* here once Dove is migrated to the pci-mvebu driver. The
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* non-PCIe windows will no longer be created here once Dove
|
||
|
|
* fully moves to DT.
|
||
|
|
*/
|
||
|
|
mvebu_mbus_add_window_remap_by_id(DOVE_MBUS_PCIE0_IO_TARGET,
|
||
|
|
DOVE_MBUS_PCIE0_IO_ATTR,
|
||
|
|
DOVE_PCIE0_IO_PHYS_BASE,
|
||
|
|
DOVE_PCIE0_IO_SIZE,
|
||
|
|
DOVE_PCIE0_IO_BUS_BASE);
|
||
|
|
mvebu_mbus_add_window_remap_by_id(DOVE_MBUS_PCIE1_IO_TARGET,
|
||
|
|
DOVE_MBUS_PCIE1_IO_ATTR,
|
||
|
|
DOVE_PCIE1_IO_PHYS_BASE,
|
||
|
|
DOVE_PCIE1_IO_SIZE,
|
||
|
|
DOVE_PCIE1_IO_BUS_BASE);
|
||
|
|
mvebu_mbus_add_window_by_id(DOVE_MBUS_PCIE0_MEM_TARGET,
|
||
|
|
DOVE_MBUS_PCIE0_MEM_ATTR,
|
||
|
|
DOVE_PCIE0_MEM_PHYS_BASE,
|
||
|
|
DOVE_PCIE0_MEM_SIZE);
|
||
|
|
mvebu_mbus_add_window_by_id(DOVE_MBUS_PCIE1_MEM_TARGET,
|
||
|
|
DOVE_MBUS_PCIE1_MEM_ATTR,
|
||
|
|
DOVE_PCIE1_MEM_PHYS_BASE,
|
||
|
|
DOVE_PCIE1_MEM_SIZE);
|
||
|
|
mvebu_mbus_add_window_by_id(DOVE_MBUS_CESA_TARGET,
|
||
|
|
DOVE_MBUS_CESA_ATTR,
|
||
|
|
DOVE_CESA_PHYS_BASE,
|
||
|
|
DOVE_CESA_SIZE);
|
||
|
|
mvebu_mbus_add_window_by_id(DOVE_MBUS_BOOTROM_TARGET,
|
||
|
|
DOVE_MBUS_BOOTROM_ATTR,
|
||
|
|
DOVE_BOOTROM_PHYS_BASE,
|
||
|
|
DOVE_BOOTROM_SIZE);
|
||
|
|
mvebu_mbus_add_window_by_id(DOVE_MBUS_SCRATCHPAD_TARGET,
|
||
|
|
DOVE_MBUS_SCRATCHPAD_ATTR,
|
||
|
|
DOVE_SCRATCHPAD_PHYS_BASE,
|
||
|
|
DOVE_SCRATCHPAD_SIZE);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct resource orion_wdt_resource[] = {
|
||
|
|
DEFINE_RES_MEM(TIMER_PHYS_BASE, 0x04),
|
||
|
|
DEFINE_RES_MEM(RSTOUTn_MASK_PHYS, 0x04),
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct platform_device orion_wdt_device = {
|
||
|
|
.name = "orion_wdt",
|
||
|
|
.id = -1,
|
||
|
|
.num_resources = ARRAY_SIZE(orion_wdt_resource),
|
||
|
|
.resource = orion_wdt_resource,
|
||
|
|
};
|
||
|
|
|
||
|
|
static void __init __maybe_unused orion_wdt_init(void)
|
||
|
|
{
|
||
|
|
platform_device_register(&orion_wdt_device);
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct dove_pmu_domain_initdata pmu_domains[] __initconst = {
|
||
|
|
{
|
||
|
|
.pwr_mask = PMU_PWR_VPU_PWR_DWN_MASK,
|
||
|
|
.rst_mask = PMU_SW_RST_VIDEO_MASK,
|
||
|
|
.iso_mask = PMU_ISO_VIDEO_MASK,
|
||
|
|
.name = "vpu-domain",
|
||
|
|
}, {
|
||
|
|
.pwr_mask = PMU_PWR_GPU_PWR_DWN_MASK,
|
||
|
|
.rst_mask = PMU_SW_RST_GPU_MASK,
|
||
|
|
.iso_mask = PMU_ISO_GPU_MASK,
|
||
|
|
.name = "gpu-domain",
|
||
|
|
}, {
|
||
|
|
/* sentinel */
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static const struct dove_pmu_initdata pmu_data __initconst = {
|
||
|
|
.pmc_base = DOVE_PMU_VIRT_BASE,
|
||
|
|
.pmu_base = DOVE_PMU_VIRT_BASE + 0x8000,
|
||
|
|
.irq = IRQ_DOVE_PMU,
|
||
|
|
.irq_domain_start = IRQ_DOVE_PMU_START,
|
||
|
|
.domains = pmu_domains,
|
||
|
|
};
|
||
|
|
|
||
|
|
void __init dove_init(void)
|
||
|
|
{
|
||
|
|
pr_info("Dove 88AP510 SoC, TCLK = %d MHz.\n",
|
||
|
|
(dove_tclk + 499999) / 1000000);
|
||
|
|
|
||
|
|
#ifdef CONFIG_CACHE_TAUROS2
|
||
|
|
tauros2_init(0);
|
||
|
|
#endif
|
||
|
|
dove_setup_cpu_wins();
|
||
|
|
|
||
|
|
/* Setup root of clk tree */
|
||
|
|
dove_clk_init();
|
||
|
|
|
||
|
|
/* internal devices that every board has */
|
||
|
|
dove_init_pmu_legacy(&pmu_data);
|
||
|
|
dove_rtc_init();
|
||
|
|
dove_xor0_init();
|
||
|
|
dove_xor1_init();
|
||
|
|
}
|
||
|
|
|
||
|
|
void dove_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)
|
||
|
|
;
|
||
|
|
}
|