 3002997310
			
		
	
	
		3002997310
		
	
	
	
	
		
			
			Reviewed-by: Cédric Le Goater <clg@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
		
			
				
	
	
		
			1151 lines
		
	
	
		
			37 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			1151 lines
		
	
	
		
			37 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
 | |
|  * ASPEED System Control Unit
 | |
|  *
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|  * Andrew Jeffery <andrew@aj.id.au>
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|  *
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|  * Copyright 2016 IBM Corp.
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|  *
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|  * This code is licensed under the GPL version 2 or later.  See
 | |
|  * the COPYING file in the top-level directory.
 | |
|  */
 | |
| 
 | |
| #include "qemu/osdep.h"
 | |
| #include "hw/misc/aspeed_scu.h"
 | |
| #include "hw/qdev-properties.h"
 | |
| #include "migration/vmstate.h"
 | |
| #include "qapi/error.h"
 | |
| #include "qapi/visitor.h"
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| #include "qemu/bitops.h"
 | |
| #include "qemu/log.h"
 | |
| #include "qemu/guest-random.h"
 | |
| #include "qemu/module.h"
 | |
| #include "trace.h"
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| 
 | |
| #define TO_REG(offset) ((offset) >> 2)
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| 
 | |
| #define PROT_KEY             TO_REG(0x00)
 | |
| #define SYS_RST_CTRL         TO_REG(0x04)
 | |
| #define CLK_SEL              TO_REG(0x08)
 | |
| #define CLK_STOP_CTRL        TO_REG(0x0C)
 | |
| #define FREQ_CNTR_CTRL       TO_REG(0x10)
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| #define FREQ_CNTR_EVAL       TO_REG(0x14)
 | |
| #define IRQ_CTRL             TO_REG(0x18)
 | |
| #define D2PLL_PARAM          TO_REG(0x1C)
 | |
| #define MPLL_PARAM           TO_REG(0x20)
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| #define HPLL_PARAM           TO_REG(0x24)
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| #define FREQ_CNTR_RANGE      TO_REG(0x28)
 | |
| #define MISC_CTRL1           TO_REG(0x2C)
 | |
| #define PCI_CTRL1            TO_REG(0x30)
 | |
| #define PCI_CTRL2            TO_REG(0x34)
 | |
| #define PCI_CTRL3            TO_REG(0x38)
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| #define SYS_RST_STATUS       TO_REG(0x3C)
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| #define SOC_SCRATCH1         TO_REG(0x40)
 | |
| #define SOC_SCRATCH2         TO_REG(0x44)
 | |
| #define MAC_CLK_DELAY        TO_REG(0x48)
 | |
| #define MISC_CTRL2           TO_REG(0x4C)
 | |
| #define VGA_SCRATCH1         TO_REG(0x50)
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| #define VGA_SCRATCH2         TO_REG(0x54)
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| #define VGA_SCRATCH3         TO_REG(0x58)
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| #define VGA_SCRATCH4         TO_REG(0x5C)
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| #define VGA_SCRATCH5         TO_REG(0x60)
 | |
| #define VGA_SCRATCH6         TO_REG(0x64)
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| #define VGA_SCRATCH7         TO_REG(0x68)
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| #define VGA_SCRATCH8         TO_REG(0x6C)
 | |
| #define HW_STRAP1            TO_REG(0x70)
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| #define RNG_CTRL             TO_REG(0x74)
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| #define RNG_DATA             TO_REG(0x78)
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| #define SILICON_REV          TO_REG(0x7C)
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| #define PINMUX_CTRL1         TO_REG(0x80)
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| #define PINMUX_CTRL2         TO_REG(0x84)
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| #define PINMUX_CTRL3         TO_REG(0x88)
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| #define PINMUX_CTRL4         TO_REG(0x8C)
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| #define PINMUX_CTRL5         TO_REG(0x90)
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| #define PINMUX_CTRL6         TO_REG(0x94)
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| #define WDT_RST_CTRL         TO_REG(0x9C)
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| #define PINMUX_CTRL7         TO_REG(0xA0)
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| #define PINMUX_CTRL8         TO_REG(0xA4)
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| #define PINMUX_CTRL9         TO_REG(0xA8)
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| #define WAKEUP_EN            TO_REG(0xC0)
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| #define WAKEUP_CTRL          TO_REG(0xC4)
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| #define HW_STRAP2            TO_REG(0xD0)
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| #define FREE_CNTR4           TO_REG(0xE0)
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| #define FREE_CNTR4_EXT       TO_REG(0xE4)
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| #define CPU2_CTRL            TO_REG(0x100)
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| #define CPU2_BASE_SEG1       TO_REG(0x104)
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| #define CPU2_BASE_SEG2       TO_REG(0x108)
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| #define CPU2_BASE_SEG3       TO_REG(0x10C)
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| #define CPU2_BASE_SEG4       TO_REG(0x110)
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| #define CPU2_BASE_SEG5       TO_REG(0x114)
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| #define CPU2_CACHE_CTRL      TO_REG(0x118)
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| #define CHIP_ID0             TO_REG(0x150)
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| #define CHIP_ID1             TO_REG(0x154)
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| #define UART_HPLL_CLK        TO_REG(0x160)
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| #define PCIE_CTRL            TO_REG(0x180)
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| #define BMC_MMIO_CTRL        TO_REG(0x184)
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| #define RELOC_DECODE_BASE1   TO_REG(0x188)
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| #define RELOC_DECODE_BASE2   TO_REG(0x18C)
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| #define MAILBOX_DECODE_BASE  TO_REG(0x190)
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| #define SRAM_DECODE_BASE1    TO_REG(0x194)
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| #define SRAM_DECODE_BASE2    TO_REG(0x198)
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| #define BMC_REV              TO_REG(0x19C)
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| #define BMC_DEV_ID           TO_REG(0x1A4)
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| 
 | |
| #define AST2600_PROT_KEY          TO_REG(0x00)
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| #define AST2600_SILICON_REV       TO_REG(0x04)
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| #define AST2600_SILICON_REV2      TO_REG(0x14)
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| #define AST2600_SYS_RST_CTRL      TO_REG(0x40)
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| #define AST2600_SYS_RST_CTRL_CLR  TO_REG(0x44)
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| #define AST2600_SYS_RST_CTRL2     TO_REG(0x50)
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| #define AST2600_SYS_RST_CTRL2_CLR TO_REG(0x54)
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| #define AST2600_CLK_STOP_CTRL     TO_REG(0x80)
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| #define AST2600_CLK_STOP_CTRL_CLR TO_REG(0x84)
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| #define AST2600_CLK_STOP_CTRL2     TO_REG(0x90)
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| #define AST2600_CLK_STOP_CTRL2_CLR TO_REG(0x94)
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| #define AST2600_DEBUG_CTRL        TO_REG(0xC8)
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| #define AST2600_DEBUG_CTRL2       TO_REG(0xD8)
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| #define AST2600_SDRAM_HANDSHAKE   TO_REG(0x100)
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| #define AST2600_HPLL_PARAM        TO_REG(0x200)
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| #define AST2600_HPLL_EXT          TO_REG(0x204)
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| #define AST2600_APLL_PARAM        TO_REG(0x210)
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| #define AST2600_APLL_EXT          TO_REG(0x214)
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| #define AST2600_MPLL_PARAM        TO_REG(0x220)
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| #define AST2600_MPLL_EXT          TO_REG(0x224)
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| #define AST2600_EPLL_PARAM        TO_REG(0x240)
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| #define AST2600_EPLL_EXT          TO_REG(0x244)
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| #define AST2600_DPLL_PARAM        TO_REG(0x260)
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| #define AST2600_DPLL_EXT          TO_REG(0x264)
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| #define AST2600_CLK_SEL           TO_REG(0x300)
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| #define AST2600_CLK_SEL2          TO_REG(0x304)
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| #define AST2600_CLK_SEL3          TO_REG(0x308)
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| #define AST2600_CLK_SEL4          TO_REG(0x310)
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| #define AST2600_CLK_SEL5          TO_REG(0x314)
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| #define AST2600_UARTCLK           TO_REG(0x338)
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| #define AST2600_HUARTCLK          TO_REG(0x33C)
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| #define AST2600_HW_STRAP1         TO_REG(0x500)
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| #define AST2600_HW_STRAP1_CLR     TO_REG(0x504)
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| #define AST2600_HW_STRAP1_PROT    TO_REG(0x508)
 | |
| #define AST2600_HW_STRAP2         TO_REG(0x510)
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| #define AST2600_HW_STRAP2_CLR     TO_REG(0x514)
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| #define AST2600_HW_STRAP2_PROT    TO_REG(0x518)
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| #define AST2600_RNG_CTRL          TO_REG(0x524)
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| #define AST2600_RNG_DATA          TO_REG(0x540)
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| #define AST2600_CHIP_ID0          TO_REG(0x5B0)
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| #define AST2600_CHIP_ID1          TO_REG(0x5B4)
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| 
 | |
| #define AST2600_CLK TO_REG(0x40)
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| 
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| #define AST2700_SILICON_REV       TO_REG(0x00)
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| #define AST2700_HW_STRAP1         TO_REG(0x10)
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| #define AST2700_HW_STRAP1_CLR     TO_REG(0x14)
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| #define AST2700_HW_STRAP1_LOCK    TO_REG(0x20)
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| #define AST2700_HW_STRAP1_SEC1    TO_REG(0x24)
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| #define AST2700_HW_STRAP1_SEC2    TO_REG(0x28)
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| #define AST2700_HW_STRAP1_SEC3    TO_REG(0x2C)
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| 
 | |
| #define AST2700_SCU_CLK_SEL_1       TO_REG(0x280)
 | |
| #define AST2700_SCU_HPLL_PARAM      TO_REG(0x300)
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| #define AST2700_SCU_HPLL_EXT_PARAM  TO_REG(0x304)
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| #define AST2700_SCU_DPLL_PARAM      TO_REG(0x308)
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| #define AST2700_SCU_DPLL_EXT_PARAM  TO_REG(0x30c)
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| #define AST2700_SCU_MPLL_PARAM      TO_REG(0x310)
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| #define AST2700_SCU_MPLL_EXT_PARAM  TO_REG(0x314)
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| #define AST2700_SCU_D1CLK_PARAM     TO_REG(0x320)
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| #define AST2700_SCU_D2CLK_PARAM     TO_REG(0x330)
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| #define AST2700_SCU_CRT1CLK_PARAM   TO_REG(0x340)
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| #define AST2700_SCU_CRT2CLK_PARAM   TO_REG(0x350)
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| #define AST2700_SCU_MPHYCLK_PARAM   TO_REG(0x360)
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| #define AST2700_SCU_FREQ_CNTR       TO_REG(0x3b0)
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| #define AST2700_SCU_CPU_SCRATCH_0   TO_REG(0x780)
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| #define AST2700_SCU_CPU_SCRATCH_1   TO_REG(0x784)
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| 
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| #define AST2700_SCUIO_CLK_STOP_CTL_1    TO_REG(0x240)
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| #define AST2700_SCUIO_CLK_STOP_CLR_1    TO_REG(0x244)
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| #define AST2700_SCUIO_CLK_STOP_CTL_2    TO_REG(0x260)
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| #define AST2700_SCUIO_CLK_STOP_CLR_2    TO_REG(0x264)
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| #define AST2700_SCUIO_CLK_SEL_1         TO_REG(0x280)
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| #define AST2700_SCUIO_CLK_SEL_2         TO_REG(0x284)
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| #define AST2700_SCUIO_HPLL_PARAM        TO_REG(0x300)
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| #define AST2700_SCUIO_HPLL_EXT_PARAM    TO_REG(0x304)
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| #define AST2700_SCUIO_APLL_PARAM        TO_REG(0x310)
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| #define AST2700_SCUIO_APLL_EXT_PARAM    TO_REG(0x314)
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| #define AST2700_SCUIO_DPLL_PARAM        TO_REG(0x320)
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| #define AST2700_SCUIO_DPLL_EXT_PARAM    TO_REG(0x324)
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| #define AST2700_SCUIO_DPLL_PARAM_READ   TO_REG(0x328)
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| #define AST2700_SCUIO_DPLL_EXT_PARAM_READ TO_REG(0x32c)
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| #define AST2700_SCUIO_UARTCLK_GEN       TO_REG(0x330)
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| #define AST2700_SCUIO_HUARTCLK_GEN      TO_REG(0x334)
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| #define AST2700_SCUIO_CLK_DUTY_MEAS_RST TO_REG(0x388)
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| 
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| #define SCU_IO_REGION_SIZE 0x1000
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| 
 | |
| static const uint32_t ast2400_a0_resets[ASPEED_SCU_NR_REGS] = {
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|      [SYS_RST_CTRL]    = 0xFFCFFEDCU,
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|      [CLK_SEL]         = 0xF3F40000U,
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|      [CLK_STOP_CTRL]   = 0x19FC3E8BU,
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|      [D2PLL_PARAM]     = 0x00026108U,
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|      [MPLL_PARAM]      = 0x00030291U,
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|      [HPLL_PARAM]      = 0x00000291U,
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|      [MISC_CTRL1]      = 0x00000010U,
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|      [PCI_CTRL1]       = 0x20001A03U,
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|      [PCI_CTRL2]       = 0x20001A03U,
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|      [PCI_CTRL3]       = 0x04000030U,
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|      [SYS_RST_STATUS]  = 0x00000001U,
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|      [SOC_SCRATCH1]    = 0x000000C0U, /* SoC completed DRAM init */
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|      [MISC_CTRL2]      = 0x00000023U,
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|      [RNG_CTRL]        = 0x0000000EU,
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|      [PINMUX_CTRL2]    = 0x0000F000U,
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|      [PINMUX_CTRL3]    = 0x01000000U,
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|      [PINMUX_CTRL4]    = 0x000000FFU,
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|      [PINMUX_CTRL5]    = 0x0000A000U,
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|      [WDT_RST_CTRL]    = 0x003FFFF3U,
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|      [PINMUX_CTRL8]    = 0xFFFF0000U,
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|      [PINMUX_CTRL9]    = 0x000FFFFFU,
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|      [FREE_CNTR4]      = 0x000000FFU,
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|      [FREE_CNTR4_EXT]  = 0x000000FFU,
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|      [CPU2_BASE_SEG1]  = 0x80000000U,
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|      [CPU2_BASE_SEG4]  = 0x1E600000U,
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|      [CPU2_BASE_SEG5]  = 0xC0000000U,
 | |
|      [UART_HPLL_CLK]   = 0x00001903U,
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|      [PCIE_CTRL]       = 0x0000007BU,
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|      [BMC_DEV_ID]      = 0x00002402U
 | |
| };
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| 
 | |
| /* SCU70 bit 23: 0 24Mhz. bit 11:9: 0b001 AXI:ABH ratio 2:1 */
 | |
| /* AST2500 revision A1 */
 | |
| 
 | |
| static const uint32_t ast2500_a1_resets[ASPEED_SCU_NR_REGS] = {
 | |
|      [SYS_RST_CTRL]    = 0xFFCFFEDCU,
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|      [CLK_SEL]         = 0xF3F40000U,
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|      [CLK_STOP_CTRL]   = 0x19FC3E8BU,
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|      [D2PLL_PARAM]     = 0x00026108U,
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|      [MPLL_PARAM]      = 0x00030291U,
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|      [HPLL_PARAM]      = 0x93000400U,
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|      [MISC_CTRL1]      = 0x00000010U,
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|      [PCI_CTRL1]       = 0x20001A03U,
 | |
|      [PCI_CTRL2]       = 0x20001A03U,
 | |
|      [PCI_CTRL3]       = 0x04000030U,
 | |
|      [SYS_RST_STATUS]  = 0x00000001U,
 | |
|      [SOC_SCRATCH1]    = 0x000000C0U, /* SoC completed DRAM init */
 | |
|      [MISC_CTRL2]      = 0x00000023U,
 | |
|      [RNG_CTRL]        = 0x0000000EU,
 | |
|      [PINMUX_CTRL2]    = 0x0000F000U,
 | |
|      [PINMUX_CTRL3]    = 0x03000000U,
 | |
|      [PINMUX_CTRL4]    = 0x00000000U,
 | |
|      [PINMUX_CTRL5]    = 0x0000A000U,
 | |
|      [WDT_RST_CTRL]    = 0x023FFFF3U,
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|      [PINMUX_CTRL8]    = 0xFFFF0000U,
 | |
|      [PINMUX_CTRL9]    = 0x000FFFFFU,
 | |
|      [FREE_CNTR4]      = 0x000000FFU,
 | |
|      [FREE_CNTR4_EXT]  = 0x000000FFU,
 | |
|      [CPU2_BASE_SEG1]  = 0x80000000U,
 | |
|      [CPU2_BASE_SEG4]  = 0x1E600000U,
 | |
|      [CPU2_BASE_SEG5]  = 0xC0000000U,
 | |
|      [CHIP_ID0]        = 0x1234ABCDU,
 | |
|      [CHIP_ID1]        = 0x88884444U,
 | |
|      [UART_HPLL_CLK]   = 0x00001903U,
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|      [PCIE_CTRL]       = 0x0000007BU,
 | |
|      [BMC_DEV_ID]      = 0x00002402U
 | |
| };
 | |
| 
 | |
| static uint32_t aspeed_scu_get_random(void)
 | |
| {
 | |
|     uint32_t num;
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|     qemu_guest_getrandom_nofail(&num, sizeof(num));
 | |
|     return num;
 | |
| }
 | |
| 
 | |
| uint32_t aspeed_scu_get_apb_freq(AspeedSCUState *s)
 | |
| {
 | |
|     return ASPEED_SCU_GET_CLASS(s)->get_apb(s);
 | |
| }
 | |
| 
 | |
| static uint32_t aspeed_2400_scu_get_apb_freq(AspeedSCUState *s)
 | |
| {
 | |
|     AspeedSCUClass *asc = ASPEED_SCU_GET_CLASS(s);
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|     uint32_t hpll = asc->calc_hpll(s, s->regs[HPLL_PARAM]);
 | |
| 
 | |
|     return hpll / (SCU_CLK_GET_PCLK_DIV(s->regs[CLK_SEL]) + 1)
 | |
|         / asc->apb_divider;
 | |
| }
 | |
| 
 | |
| static uint32_t aspeed_2600_scu_get_apb_freq(AspeedSCUState *s)
 | |
| {
 | |
|     AspeedSCUClass *asc = ASPEED_SCU_GET_CLASS(s);
 | |
|     uint32_t hpll = asc->calc_hpll(s, s->regs[AST2600_HPLL_PARAM]);
 | |
| 
 | |
|     return hpll / (SCU_CLK_GET_PCLK_DIV(s->regs[AST2600_CLK_SEL]) + 1)
 | |
|         / asc->apb_divider;
 | |
| }
 | |
| 
 | |
| static uint32_t aspeed_1030_scu_get_apb_freq(AspeedSCUState *s)
 | |
| {
 | |
|     AspeedSCUClass *asc = ASPEED_SCU_GET_CLASS(s);
 | |
|     uint32_t hpll = asc->calc_hpll(s, s->regs[AST2600_HPLL_PARAM]);
 | |
| 
 | |
|     return hpll / (SCU_AST1030_CLK_GET_PCLK_DIV(s->regs[AST2600_CLK_SEL4]) + 1)
 | |
|         / asc->apb_divider;
 | |
| }
 | |
| 
 | |
| static uint32_t aspeed_2700_scu_get_apb_freq(AspeedSCUState *s)
 | |
| {
 | |
|     AspeedSCUClass *asc = ASPEED_SCU_GET_CLASS(s);
 | |
|     uint32_t hpll = asc->calc_hpll(s, s->regs[AST2700_SCU_HPLL_PARAM]);
 | |
| 
 | |
|     return hpll / (SCU_CLK_GET_PCLK_DIV(s->regs[AST2700_SCU_CLK_SEL_1]) + 1)
 | |
|            / asc->apb_divider;
 | |
| }
 | |
| 
 | |
| static uint32_t aspeed_2700_scuio_get_apb_freq(AspeedSCUState *s)
 | |
| {
 | |
|     AspeedSCUClass *asc = ASPEED_SCU_GET_CLASS(s);
 | |
|     uint32_t hpll = asc->calc_hpll(s, s->regs[AST2700_SCUIO_HPLL_PARAM]);
 | |
| 
 | |
|     return hpll /
 | |
|         (SCUIO_AST2700_CLK_GET_PCLK_DIV(s->regs[AST2700_SCUIO_CLK_SEL_1]) + 1)
 | |
|         / asc->apb_divider;
 | |
| }
 | |
| 
 | |
| static uint64_t aspeed_scu_read(void *opaque, hwaddr offset, unsigned size)
 | |
| {
 | |
|     AspeedSCUState *s = ASPEED_SCU(opaque);
 | |
|     int reg = TO_REG(offset);
 | |
| 
 | |
|     if (reg >= ASPEED_SCU_NR_REGS) {
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "%s: Out-of-bounds read at offset 0x%" HWADDR_PRIx "\n",
 | |
|                       __func__, offset);
 | |
|         return 0;
 | |
|     }
 | |
| 
 | |
|     switch (reg) {
 | |
|     case RNG_DATA:
 | |
|         /*
 | |
|          * On hardware, RNG_DATA works regardless of
 | |
|          * the state of the enable bit in RNG_CTRL
 | |
|          */
 | |
|         s->regs[RNG_DATA] = aspeed_scu_get_random();
 | |
|         break;
 | |
|     case WAKEUP_EN:
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "%s: Read of write-only offset 0x%" HWADDR_PRIx "\n",
 | |
|                       __func__, offset);
 | |
|         break;
 | |
|     }
 | |
| 
 | |
|     trace_aspeed_scu_read(offset, size, s->regs[reg]);
 | |
|     return s->regs[reg];
 | |
| }
 | |
| 
 | |
| static void aspeed_ast2400_scu_write(void *opaque, hwaddr offset,
 | |
|                                      uint64_t data, unsigned size)
 | |
| {
 | |
|     AspeedSCUState *s = ASPEED_SCU(opaque);
 | |
|     int reg = TO_REG(offset);
 | |
| 
 | |
|     if (reg >= ASPEED_SCU_NR_REGS) {
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "%s: Out-of-bounds write at offset 0x%" HWADDR_PRIx "\n",
 | |
|                       __func__, offset);
 | |
|         return;
 | |
|     }
 | |
| 
 | |
|     if (reg > PROT_KEY && reg < CPU2_BASE_SEG1 &&
 | |
|             !s->regs[PROT_KEY]) {
 | |
|         qemu_log_mask(LOG_GUEST_ERROR, "%s: SCU is locked!\n", __func__);
 | |
|     }
 | |
| 
 | |
|     trace_aspeed_scu_write(offset, size, data);
 | |
| 
 | |
|     switch (reg) {
 | |
|     case PROT_KEY:
 | |
|         s->regs[reg] = (data == ASPEED_SCU_PROT_KEY) ? 1 : 0;
 | |
|         return;
 | |
|     case SILICON_REV:
 | |
|     case FREQ_CNTR_EVAL:
 | |
|     case VGA_SCRATCH1 ... VGA_SCRATCH8:
 | |
|     case RNG_DATA:
 | |
|     case FREE_CNTR4:
 | |
|     case FREE_CNTR4_EXT:
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "%s: Write to read-only offset 0x%" HWADDR_PRIx "\n",
 | |
|                       __func__, offset);
 | |
|         return;
 | |
|     }
 | |
| 
 | |
|     s->regs[reg] = data;
 | |
| }
 | |
| 
 | |
| static void aspeed_ast2500_scu_write(void *opaque, hwaddr offset,
 | |
|                                      uint64_t data, unsigned size)
 | |
| {
 | |
|     AspeedSCUState *s = ASPEED_SCU(opaque);
 | |
|     int reg = TO_REG(offset);
 | |
| 
 | |
|     if (reg >= ASPEED_SCU_NR_REGS) {
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "%s: Out-of-bounds write at offset 0x%" HWADDR_PRIx "\n",
 | |
|                       __func__, offset);
 | |
|         return;
 | |
|     }
 | |
| 
 | |
|     if (reg > PROT_KEY && reg < CPU2_BASE_SEG1 &&
 | |
|             !s->regs[PROT_KEY]) {
 | |
|         qemu_log_mask(LOG_GUEST_ERROR, "%s: SCU is locked!\n", __func__);
 | |
|         return;
 | |
|     }
 | |
| 
 | |
|     trace_aspeed_scu_write(offset, size, data);
 | |
| 
 | |
|     switch (reg) {
 | |
|     case PROT_KEY:
 | |
|         s->regs[reg] = (data == ASPEED_SCU_PROT_KEY) ? 1 : 0;
 | |
|         return;
 | |
|     case HW_STRAP1:
 | |
|         s->regs[HW_STRAP1] |= data;
 | |
|         return;
 | |
|     case SILICON_REV:
 | |
|         s->regs[HW_STRAP1] &= ~data;
 | |
|         return;
 | |
|     case FREQ_CNTR_EVAL:
 | |
|     case VGA_SCRATCH1 ... VGA_SCRATCH8:
 | |
|     case RNG_DATA:
 | |
|     case FREE_CNTR4:
 | |
|     case FREE_CNTR4_EXT:
 | |
|     case CHIP_ID0:
 | |
|     case CHIP_ID1:
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "%s: Write to read-only offset 0x%" HWADDR_PRIx "\n",
 | |
|                       __func__, offset);
 | |
|         return;
 | |
|     }
 | |
| 
 | |
|     s->regs[reg] = data;
 | |
| }
 | |
| 
 | |
| static const MemoryRegionOps aspeed_ast2400_scu_ops = {
 | |
|     .read = aspeed_scu_read,
 | |
|     .write = aspeed_ast2400_scu_write,
 | |
|     .endianness = DEVICE_LITTLE_ENDIAN,
 | |
|     .valid = {
 | |
|         .min_access_size = 1,
 | |
|         .max_access_size = 4,
 | |
|     },
 | |
| };
 | |
| 
 | |
| static const MemoryRegionOps aspeed_ast2500_scu_ops = {
 | |
|     .read = aspeed_scu_read,
 | |
|     .write = aspeed_ast2500_scu_write,
 | |
|     .endianness = DEVICE_LITTLE_ENDIAN,
 | |
|     .valid.min_access_size = 4,
 | |
|     .valid.max_access_size = 4,
 | |
|     .valid.unaligned = false,
 | |
| };
 | |
| 
 | |
| static uint32_t aspeed_scu_get_clkin(AspeedSCUState *s)
 | |
| {
 | |
|     if (s->hw_strap1 & SCU_HW_STRAP_CLK_25M_IN ||
 | |
|         ASPEED_SCU_GET_CLASS(s)->clkin_25Mhz) {
 | |
|         return 25000000;
 | |
|     } else if (s->hw_strap1 & SCU_HW_STRAP_CLK_48M_IN) {
 | |
|         return 48000000;
 | |
|     } else {
 | |
|         return 24000000;
 | |
|     }
 | |
| }
 | |
| 
 | |
| /*
 | |
|  * Strapped frequencies for the AST2400 in MHz. They depend on the
 | |
|  * clkin frequency.
 | |
|  */
 | |
| static const uint32_t hpll_ast2400_freqs[][4] = {
 | |
|     { 384, 360, 336, 408 }, /* 24MHz or 48MHz */
 | |
|     { 400, 375, 350, 425 }, /* 25MHz */
 | |
| };
 | |
| 
 | |
| static uint32_t aspeed_2400_scu_calc_hpll(AspeedSCUState *s, uint32_t hpll_reg)
 | |
| {
 | |
|     uint8_t freq_select;
 | |
|     bool clk_25m_in;
 | |
|     uint32_t clkin = aspeed_scu_get_clkin(s);
 | |
| 
 | |
|     if (hpll_reg & SCU_AST2400_H_PLL_OFF) {
 | |
|         return 0;
 | |
|     }
 | |
| 
 | |
|     if (hpll_reg & SCU_AST2400_H_PLL_PROGRAMMED) {
 | |
|         uint32_t multiplier = 1;
 | |
| 
 | |
|         if (!(hpll_reg & SCU_AST2400_H_PLL_BYPASS_EN)) {
 | |
|             uint32_t n  = (hpll_reg >> 5) & 0x3f;
 | |
|             uint32_t od = (hpll_reg >> 4) & 0x1;
 | |
|             uint32_t d  = hpll_reg & 0xf;
 | |
| 
 | |
|             multiplier = (2 - od) * ((n + 2) / (d + 1));
 | |
|         }
 | |
| 
 | |
|         return clkin * multiplier;
 | |
|     }
 | |
| 
 | |
|     /* HW strapping */
 | |
|     clk_25m_in = !!(s->hw_strap1 & SCU_HW_STRAP_CLK_25M_IN);
 | |
|     freq_select = SCU_AST2400_HW_STRAP_GET_H_PLL_CLK(s->hw_strap1);
 | |
| 
 | |
|     return hpll_ast2400_freqs[clk_25m_in][freq_select] * 1000000;
 | |
| }
 | |
| 
 | |
| static uint32_t aspeed_2500_scu_calc_hpll(AspeedSCUState *s, uint32_t hpll_reg)
 | |
| {
 | |
|     uint32_t multiplier = 1;
 | |
|     uint32_t clkin = aspeed_scu_get_clkin(s);
 | |
| 
 | |
|     if (hpll_reg & SCU_H_PLL_OFF) {
 | |
|         return 0;
 | |
|     }
 | |
| 
 | |
|     if (!(hpll_reg & SCU_H_PLL_BYPASS_EN)) {
 | |
|         uint32_t p = (hpll_reg >> 13) & 0x3f;
 | |
|         uint32_t m = (hpll_reg >> 5) & 0xff;
 | |
|         uint32_t n = hpll_reg & 0x1f;
 | |
| 
 | |
|         multiplier = ((m + 1) / (n + 1)) / (p + 1);
 | |
|     }
 | |
| 
 | |
|     return clkin * multiplier;
 | |
| }
 | |
| 
 | |
| static uint32_t aspeed_2600_scu_calc_hpll(AspeedSCUState *s, uint32_t hpll_reg)
 | |
| {
 | |
|     uint32_t multiplier = 1;
 | |
|     uint32_t clkin = aspeed_scu_get_clkin(s);
 | |
| 
 | |
|     if (hpll_reg & SCU_AST2600_H_PLL_OFF) {
 | |
|         return 0;
 | |
|     }
 | |
| 
 | |
|     if (!(hpll_reg & SCU_AST2600_H_PLL_BYPASS_EN)) {
 | |
|         uint32_t p = (hpll_reg >> 19) & 0xf;
 | |
|         uint32_t n = (hpll_reg >> 13) & 0x3f;
 | |
|         uint32_t m = hpll_reg & 0x1fff;
 | |
| 
 | |
|         multiplier = ((m + 1) / (n + 1)) / (p + 1);
 | |
|     }
 | |
| 
 | |
|     return clkin * multiplier;
 | |
| }
 | |
| 
 | |
| static void aspeed_scu_reset(DeviceState *dev)
 | |
| {
 | |
|     AspeedSCUState *s = ASPEED_SCU(dev);
 | |
|     AspeedSCUClass *asc = ASPEED_SCU_GET_CLASS(dev);
 | |
| 
 | |
|     memcpy(s->regs, asc->resets, asc->nr_regs * 4);
 | |
|     s->regs[SILICON_REV] = s->silicon_rev;
 | |
|     s->regs[HW_STRAP1] = s->hw_strap1;
 | |
|     s->regs[HW_STRAP2] = s->hw_strap2;
 | |
|     s->regs[PROT_KEY] = s->hw_prot_key;
 | |
| }
 | |
| 
 | |
| static uint32_t aspeed_silicon_revs[] = {
 | |
|     AST2400_A0_SILICON_REV,
 | |
|     AST2400_A1_SILICON_REV,
 | |
|     AST2500_A0_SILICON_REV,
 | |
|     AST2500_A1_SILICON_REV,
 | |
|     AST2600_A0_SILICON_REV,
 | |
|     AST2600_A1_SILICON_REV,
 | |
|     AST2600_A2_SILICON_REV,
 | |
|     AST2600_A3_SILICON_REV,
 | |
|     AST1030_A0_SILICON_REV,
 | |
|     AST1030_A1_SILICON_REV,
 | |
|     AST2700_A0_SILICON_REV,
 | |
|     AST2720_A0_SILICON_REV,
 | |
|     AST2750_A0_SILICON_REV,
 | |
| };
 | |
| 
 | |
| bool is_supported_silicon_rev(uint32_t silicon_rev)
 | |
| {
 | |
|     int i;
 | |
| 
 | |
|     for (i = 0; i < ARRAY_SIZE(aspeed_silicon_revs); i++) {
 | |
|         if (silicon_rev == aspeed_silicon_revs[i]) {
 | |
|             return true;
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     return false;
 | |
| }
 | |
| 
 | |
| static void aspeed_scu_realize(DeviceState *dev, Error **errp)
 | |
| {
 | |
|     SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
 | |
|     AspeedSCUState *s = ASPEED_SCU(dev);
 | |
|     AspeedSCUClass *asc = ASPEED_SCU_GET_CLASS(dev);
 | |
| 
 | |
|     if (!is_supported_silicon_rev(s->silicon_rev)) {
 | |
|         error_setg(errp, "Unknown silicon revision: 0x%" PRIx32,
 | |
|                 s->silicon_rev);
 | |
|         return;
 | |
|     }
 | |
| 
 | |
|     memory_region_init_io(&s->iomem, OBJECT(s), asc->ops, s,
 | |
|                           TYPE_ASPEED_SCU, SCU_IO_REGION_SIZE);
 | |
| 
 | |
|     sysbus_init_mmio(sbd, &s->iomem);
 | |
| }
 | |
| 
 | |
| static const VMStateDescription vmstate_aspeed_scu = {
 | |
|     .name = "aspeed.scu",
 | |
|     .version_id = 2,
 | |
|     .minimum_version_id = 2,
 | |
|     .fields = (const VMStateField[]) {
 | |
|         VMSTATE_UINT32_ARRAY(regs, AspeedSCUState, ASPEED_AST2600_SCU_NR_REGS),
 | |
|         VMSTATE_END_OF_LIST()
 | |
|     }
 | |
| };
 | |
| 
 | |
| static const Property aspeed_scu_properties[] = {
 | |
|     DEFINE_PROP_UINT32("silicon-rev", AspeedSCUState, silicon_rev, 0),
 | |
|     DEFINE_PROP_UINT32("hw-strap1", AspeedSCUState, hw_strap1, 0),
 | |
|     DEFINE_PROP_UINT32("hw-strap2", AspeedSCUState, hw_strap2, 0),
 | |
|     DEFINE_PROP_UINT32("hw-prot-key", AspeedSCUState, hw_prot_key, 0),
 | |
|     DEFINE_PROP_END_OF_LIST(),
 | |
| };
 | |
| 
 | |
| static void aspeed_scu_class_init(ObjectClass *klass, void *data)
 | |
| {
 | |
|     DeviceClass *dc = DEVICE_CLASS(klass);
 | |
|     dc->realize = aspeed_scu_realize;
 | |
|     device_class_set_legacy_reset(dc, aspeed_scu_reset);
 | |
|     dc->desc = "ASPEED System Control Unit";
 | |
|     dc->vmsd = &vmstate_aspeed_scu;
 | |
|     device_class_set_props(dc, aspeed_scu_properties);
 | |
| }
 | |
| 
 | |
| static const TypeInfo aspeed_scu_info = {
 | |
|     .name = TYPE_ASPEED_SCU,
 | |
|     .parent = TYPE_SYS_BUS_DEVICE,
 | |
|     .instance_size = sizeof(AspeedSCUState),
 | |
|     .class_init = aspeed_scu_class_init,
 | |
|     .class_size    = sizeof(AspeedSCUClass),
 | |
|     .abstract      = true,
 | |
| };
 | |
| 
 | |
| static void aspeed_2400_scu_class_init(ObjectClass *klass, void *data)
 | |
| {
 | |
|     DeviceClass *dc = DEVICE_CLASS(klass);
 | |
|     AspeedSCUClass *asc = ASPEED_SCU_CLASS(klass);
 | |
| 
 | |
|     dc->desc = "ASPEED 2400 System Control Unit";
 | |
|     asc->resets = ast2400_a0_resets;
 | |
|     asc->calc_hpll = aspeed_2400_scu_calc_hpll;
 | |
|     asc->get_apb = aspeed_2400_scu_get_apb_freq;
 | |
|     asc->apb_divider = 2;
 | |
|     asc->nr_regs = ASPEED_SCU_NR_REGS;
 | |
|     asc->clkin_25Mhz = false;
 | |
|     asc->ops = &aspeed_ast2400_scu_ops;
 | |
| }
 | |
| 
 | |
| static const TypeInfo aspeed_2400_scu_info = {
 | |
|     .name = TYPE_ASPEED_2400_SCU,
 | |
|     .parent = TYPE_ASPEED_SCU,
 | |
|     .instance_size = sizeof(AspeedSCUState),
 | |
|     .class_init = aspeed_2400_scu_class_init,
 | |
| };
 | |
| 
 | |
| static void aspeed_2500_scu_class_init(ObjectClass *klass, void *data)
 | |
| {
 | |
|     DeviceClass *dc = DEVICE_CLASS(klass);
 | |
|     AspeedSCUClass *asc = ASPEED_SCU_CLASS(klass);
 | |
| 
 | |
|     dc->desc = "ASPEED 2500 System Control Unit";
 | |
|     asc->resets = ast2500_a1_resets;
 | |
|     asc->calc_hpll = aspeed_2500_scu_calc_hpll;
 | |
|     asc->get_apb = aspeed_2400_scu_get_apb_freq;
 | |
|     asc->apb_divider = 4;
 | |
|     asc->nr_regs = ASPEED_SCU_NR_REGS;
 | |
|     asc->clkin_25Mhz = false;
 | |
|     asc->ops = &aspeed_ast2500_scu_ops;
 | |
| }
 | |
| 
 | |
| static const TypeInfo aspeed_2500_scu_info = {
 | |
|     .name = TYPE_ASPEED_2500_SCU,
 | |
|     .parent = TYPE_ASPEED_SCU,
 | |
|     .instance_size = sizeof(AspeedSCUState),
 | |
|     .class_init = aspeed_2500_scu_class_init,
 | |
| };
 | |
| 
 | |
| static uint64_t aspeed_ast2600_scu_read(void *opaque, hwaddr offset,
 | |
|                                         unsigned size)
 | |
| {
 | |
|     AspeedSCUState *s = ASPEED_SCU(opaque);
 | |
|     int reg = TO_REG(offset);
 | |
| 
 | |
|     if (reg >= ASPEED_AST2600_SCU_NR_REGS) {
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "%s: Out-of-bounds read at offset 0x%" HWADDR_PRIx "\n",
 | |
|                       __func__, offset);
 | |
|         return 0;
 | |
|     }
 | |
| 
 | |
|     switch (reg) {
 | |
|     case AST2600_HPLL_EXT:
 | |
|     case AST2600_EPLL_EXT:
 | |
|     case AST2600_MPLL_EXT:
 | |
|         /* PLLs are always "locked" */
 | |
|         return s->regs[reg] | BIT(31);
 | |
|     case AST2600_RNG_DATA:
 | |
|         /*
 | |
|          * On hardware, RNG_DATA works regardless of the state of the
 | |
|          * enable bit in RNG_CTRL
 | |
|          *
 | |
|          * TODO: Check this is true for ast2600
 | |
|          */
 | |
|         s->regs[AST2600_RNG_DATA] = aspeed_scu_get_random();
 | |
|         break;
 | |
|     }
 | |
| 
 | |
|     trace_aspeed_scu_read(offset, size, s->regs[reg]);
 | |
|     return s->regs[reg];
 | |
| }
 | |
| 
 | |
| static void aspeed_ast2600_scu_write(void *opaque, hwaddr offset,
 | |
|                                      uint64_t data64, unsigned size)
 | |
| {
 | |
|     AspeedSCUState *s = ASPEED_SCU(opaque);
 | |
|     int reg = TO_REG(offset);
 | |
|     /* Truncate here so bitwise operations below behave as expected */
 | |
|     uint32_t data = data64;
 | |
| 
 | |
|     if (reg >= ASPEED_AST2600_SCU_NR_REGS) {
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "%s: Out-of-bounds write at offset 0x%" HWADDR_PRIx "\n",
 | |
|                       __func__, offset);
 | |
|         return;
 | |
|     }
 | |
| 
 | |
|     if (reg > PROT_KEY && !s->regs[PROT_KEY]) {
 | |
|         qemu_log_mask(LOG_GUEST_ERROR, "%s: SCU is locked!\n", __func__);
 | |
|     }
 | |
| 
 | |
|     trace_aspeed_scu_write(offset, size, data);
 | |
| 
 | |
|     switch (reg) {
 | |
|     case AST2600_PROT_KEY:
 | |
|         s->regs[reg] = (data == ASPEED_SCU_PROT_KEY) ? 1 : 0;
 | |
|         return;
 | |
|     case AST2600_HW_STRAP1:
 | |
|     case AST2600_HW_STRAP2:
 | |
|         if (s->regs[reg + 2]) {
 | |
|             return;
 | |
|         }
 | |
|         /* fall through */
 | |
|     case AST2600_SYS_RST_CTRL:
 | |
|     case AST2600_SYS_RST_CTRL2:
 | |
|     case AST2600_CLK_STOP_CTRL:
 | |
|     case AST2600_CLK_STOP_CTRL2:
 | |
|         /* W1S (Write 1 to set) registers */
 | |
|         s->regs[reg] |= data;
 | |
|         return;
 | |
|     case AST2600_SYS_RST_CTRL_CLR:
 | |
|     case AST2600_SYS_RST_CTRL2_CLR:
 | |
|     case AST2600_CLK_STOP_CTRL_CLR:
 | |
|     case AST2600_CLK_STOP_CTRL2_CLR:
 | |
|     case AST2600_HW_STRAP1_CLR:
 | |
|     case AST2600_HW_STRAP2_CLR:
 | |
|         /*
 | |
|          * W1C (Write 1 to clear) registers are offset by one address from
 | |
|          * the data register
 | |
|          */
 | |
|         s->regs[reg - 1] &= ~data;
 | |
|         return;
 | |
| 
 | |
|     case AST2600_RNG_DATA:
 | |
|     case AST2600_SILICON_REV:
 | |
|     case AST2600_SILICON_REV2:
 | |
|     case AST2600_CHIP_ID0:
 | |
|     case AST2600_CHIP_ID1:
 | |
|         /* Add read only registers here */
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "%s: Write to read-only offset 0x%" HWADDR_PRIx "\n",
 | |
|                       __func__, offset);
 | |
|         return;
 | |
|     }
 | |
| 
 | |
|     s->regs[reg] = data;
 | |
| }
 | |
| 
 | |
| static const MemoryRegionOps aspeed_ast2600_scu_ops = {
 | |
|     .read = aspeed_ast2600_scu_read,
 | |
|     .write = aspeed_ast2600_scu_write,
 | |
|     .endianness = DEVICE_LITTLE_ENDIAN,
 | |
|     .valid.min_access_size = 4,
 | |
|     .valid.max_access_size = 4,
 | |
|     .valid.unaligned = false,
 | |
| };
 | |
| 
 | |
| static const uint32_t ast2600_a3_resets[ASPEED_AST2600_SCU_NR_REGS] = {
 | |
|     [AST2600_SYS_RST_CTRL]      = 0xF7C3FED8,
 | |
|     [AST2600_SYS_RST_CTRL2]     = 0x0DFFFFFC,
 | |
|     [AST2600_CLK_STOP_CTRL]     = 0xFFFF7F8A,
 | |
|     [AST2600_CLK_STOP_CTRL2]    = 0xFFF0FFF0,
 | |
|     [AST2600_DEBUG_CTRL]        = 0x00000FFF,
 | |
|     [AST2600_DEBUG_CTRL2]       = 0x000000FF,
 | |
|     [AST2600_SDRAM_HANDSHAKE]   = 0x00000000,
 | |
|     [AST2600_HPLL_PARAM]        = 0x1000408F,
 | |
|     [AST2600_APLL_PARAM]        = 0x1000405F,
 | |
|     [AST2600_MPLL_PARAM]        = 0x1008405F,
 | |
|     [AST2600_EPLL_PARAM]        = 0x1004077F,
 | |
|     [AST2600_DPLL_PARAM]        = 0x1078405F,
 | |
|     [AST2600_CLK_SEL]           = 0xF3940000,
 | |
|     [AST2600_CLK_SEL2]          = 0x00700000,
 | |
|     [AST2600_CLK_SEL3]          = 0x00000000,
 | |
|     [AST2600_CLK_SEL4]          = 0xF3F40000,
 | |
|     [AST2600_CLK_SEL5]          = 0x30000000,
 | |
|     [AST2600_UARTCLK]           = 0x00014506,
 | |
|     [AST2600_HUARTCLK]          = 0x000145C0,
 | |
|     [AST2600_CHIP_ID0]          = 0x1234ABCD,
 | |
|     [AST2600_CHIP_ID1]          = 0x88884444,
 | |
| };
 | |
| 
 | |
| static void aspeed_ast2600_scu_reset(DeviceState *dev)
 | |
| {
 | |
|     AspeedSCUState *s = ASPEED_SCU(dev);
 | |
|     AspeedSCUClass *asc = ASPEED_SCU_GET_CLASS(dev);
 | |
| 
 | |
|     memcpy(s->regs, asc->resets, asc->nr_regs * 4);
 | |
| 
 | |
|     /*
 | |
|      * A0 reports A0 in _REV, but subsequent revisions report A1 regardless
 | |
|      * of actual revision. QEMU and Linux only support A1 onwards so this is
 | |
|      * sufficient.
 | |
|      */
 | |
|     s->regs[AST2600_SILICON_REV] = AST2600_A3_SILICON_REV;
 | |
|     s->regs[AST2600_SILICON_REV2] = s->silicon_rev;
 | |
|     s->regs[AST2600_HW_STRAP1] = s->hw_strap1;
 | |
|     s->regs[AST2600_HW_STRAP2] = s->hw_strap2;
 | |
|     s->regs[PROT_KEY] = s->hw_prot_key;
 | |
| }
 | |
| 
 | |
| static void aspeed_2600_scu_class_init(ObjectClass *klass, void *data)
 | |
| {
 | |
|     DeviceClass *dc = DEVICE_CLASS(klass);
 | |
|     AspeedSCUClass *asc = ASPEED_SCU_CLASS(klass);
 | |
| 
 | |
|     dc->desc = "ASPEED 2600 System Control Unit";
 | |
|     device_class_set_legacy_reset(dc, aspeed_ast2600_scu_reset);
 | |
|     asc->resets = ast2600_a3_resets;
 | |
|     asc->calc_hpll = aspeed_2600_scu_calc_hpll;
 | |
|     asc->get_apb = aspeed_2600_scu_get_apb_freq;
 | |
|     asc->apb_divider = 4;
 | |
|     asc->nr_regs = ASPEED_AST2600_SCU_NR_REGS;
 | |
|     asc->clkin_25Mhz = true;
 | |
|     asc->ops = &aspeed_ast2600_scu_ops;
 | |
| }
 | |
| 
 | |
| static const TypeInfo aspeed_2600_scu_info = {
 | |
|     .name = TYPE_ASPEED_2600_SCU,
 | |
|     .parent = TYPE_ASPEED_SCU,
 | |
|     .instance_size = sizeof(AspeedSCUState),
 | |
|     .class_init = aspeed_2600_scu_class_init,
 | |
| };
 | |
| 
 | |
| static uint64_t aspeed_ast2700_scu_read(void *opaque, hwaddr offset,
 | |
|                                         unsigned size)
 | |
| {
 | |
|     AspeedSCUState *s = ASPEED_SCU(opaque);
 | |
|     int reg = TO_REG(offset);
 | |
| 
 | |
|     if (reg >= ASPEED_AST2700_SCU_NR_REGS) {
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "%s: Out-of-bounds read at offset 0x%" HWADDR_PRIx "\n",
 | |
|                 __func__, offset);
 | |
|         return 0;
 | |
|     }
 | |
| 
 | |
|     switch (reg) {
 | |
|     default:
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "%s: Unhandled read at offset 0x%" HWADDR_PRIx "\n",
 | |
|                       __func__, offset);
 | |
|     }
 | |
| 
 | |
|     trace_aspeed_ast2700_scu_read(offset, size, s->regs[reg]);
 | |
|     return s->regs[reg];
 | |
| }
 | |
| 
 | |
| static void aspeed_ast2700_scu_write(void *opaque, hwaddr offset,
 | |
|                                      uint64_t data64, unsigned size)
 | |
| {
 | |
|     AspeedSCUState *s = ASPEED_SCU(opaque);
 | |
|     int reg = TO_REG(offset);
 | |
|     /* Truncate here so bitwise operations below behave as expected */
 | |
|     uint32_t data = data64;
 | |
| 
 | |
|     if (reg >= ASPEED_AST2700_SCU_NR_REGS) {
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "%s: Out-of-bounds write at offset 0x%" HWADDR_PRIx "\n",
 | |
|                 __func__, offset);
 | |
|         return;
 | |
|     }
 | |
| 
 | |
|     trace_aspeed_ast2700_scu_write(offset, size, data);
 | |
| 
 | |
|     switch (reg) {
 | |
|     default:
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "%s: Unhandled write at offset 0x%" HWADDR_PRIx "\n",
 | |
|                       __func__, offset);
 | |
|         break;
 | |
|     }
 | |
| 
 | |
|     s->regs[reg] = data;
 | |
| }
 | |
| 
 | |
| static const MemoryRegionOps aspeed_ast2700_scu_ops = {
 | |
|     .read = aspeed_ast2700_scu_read,
 | |
|     .write = aspeed_ast2700_scu_write,
 | |
|     .endianness = DEVICE_LITTLE_ENDIAN,
 | |
|     .valid.min_access_size = 1,
 | |
|     .valid.max_access_size = 8,
 | |
|     .valid.unaligned = false,
 | |
| };
 | |
| 
 | |
| static const uint32_t ast2700_a0_resets[ASPEED_AST2700_SCU_NR_REGS] = {
 | |
|     [AST2700_SILICON_REV]           = AST2700_A0_SILICON_REV,
 | |
|     [AST2700_HW_STRAP1]             = 0x00000800,
 | |
|     [AST2700_HW_STRAP1_CLR]         = 0xFFF0FFF0,
 | |
|     [AST2700_HW_STRAP1_LOCK]        = 0x00000FFF,
 | |
|     [AST2700_HW_STRAP1_SEC1]        = 0x000000FF,
 | |
|     [AST2700_HW_STRAP1_SEC2]        = 0x00000000,
 | |
|     [AST2700_HW_STRAP1_SEC3]        = 0x1000408F,
 | |
|     [AST2700_SCU_HPLL_PARAM]        = 0x0000009f,
 | |
|     [AST2700_SCU_HPLL_EXT_PARAM]    = 0x8000004f,
 | |
|     [AST2700_SCU_DPLL_PARAM]        = 0x0080009f,
 | |
|     [AST2700_SCU_DPLL_EXT_PARAM]    = 0x8000004f,
 | |
|     [AST2700_SCU_MPLL_PARAM]        = 0x00000040,
 | |
|     [AST2700_SCU_MPLL_EXT_PARAM]    = 0x80000000,
 | |
|     [AST2700_SCU_D1CLK_PARAM]       = 0x00050002,
 | |
|     [AST2700_SCU_D2CLK_PARAM]       = 0x00050002,
 | |
|     [AST2700_SCU_CRT1CLK_PARAM]     = 0x00050002,
 | |
|     [AST2700_SCU_CRT2CLK_PARAM]     = 0x00050002,
 | |
|     [AST2700_SCU_MPHYCLK_PARAM]     = 0x0000004c,
 | |
|     [AST2700_SCU_FREQ_CNTR]         = 0x000375eb,
 | |
|     [AST2700_SCU_CPU_SCRATCH_0]     = 0x00000000,
 | |
|     [AST2700_SCU_CPU_SCRATCH_1]     = 0x00000004,
 | |
| };
 | |
| 
 | |
| static void aspeed_ast2700_scu_reset(DeviceState *dev)
 | |
| {
 | |
|     AspeedSCUState *s = ASPEED_SCU(dev);
 | |
|     AspeedSCUClass *asc = ASPEED_SCU_GET_CLASS(dev);
 | |
| 
 | |
|     memcpy(s->regs, asc->resets, asc->nr_regs * 4);
 | |
| }
 | |
| 
 | |
| static void aspeed_2700_scu_class_init(ObjectClass *klass, void *data)
 | |
| {
 | |
|     DeviceClass *dc = DEVICE_CLASS(klass);
 | |
|     AspeedSCUClass *asc = ASPEED_SCU_CLASS(klass);
 | |
| 
 | |
|     dc->desc = "ASPEED 2700 System Control Unit";
 | |
|     device_class_set_legacy_reset(dc, aspeed_ast2700_scu_reset);
 | |
|     asc->resets = ast2700_a0_resets;
 | |
|     asc->calc_hpll = aspeed_2600_scu_calc_hpll;
 | |
|     asc->get_apb = aspeed_2700_scu_get_apb_freq;
 | |
|     asc->apb_divider = 4;
 | |
|     asc->nr_regs = ASPEED_AST2700_SCU_NR_REGS;
 | |
|     asc->clkin_25Mhz = true;
 | |
|     asc->ops = &aspeed_ast2700_scu_ops;
 | |
| }
 | |
| 
 | |
| static uint64_t aspeed_ast2700_scuio_read(void *opaque, hwaddr offset,
 | |
|                                         unsigned size)
 | |
| {
 | |
|     AspeedSCUState *s = ASPEED_SCU(opaque);
 | |
|     int reg = TO_REG(offset);
 | |
|     if (reg >= ASPEED_AST2700_SCU_NR_REGS) {
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "%s: Out-of-bounds read at offset 0x%" HWADDR_PRIx "\n",
 | |
|                 __func__, offset);
 | |
|         return 0;
 | |
|     }
 | |
| 
 | |
|     switch (reg) {
 | |
|     default:
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "%s: Unhandled read at offset 0x%" HWADDR_PRIx "\n",
 | |
|                       __func__, offset);
 | |
|     }
 | |
| 
 | |
|     trace_aspeed_ast2700_scuio_read(offset, size, s->regs[reg]);
 | |
|     return s->regs[reg];
 | |
| }
 | |
| 
 | |
| static void aspeed_ast2700_scuio_write(void *opaque, hwaddr offset,
 | |
|                                      uint64_t data64, unsigned size)
 | |
| {
 | |
|     AspeedSCUState *s = ASPEED_SCU(opaque);
 | |
|     int reg = TO_REG(offset);
 | |
|     /* Truncate here so bitwise operations below behave as expected */
 | |
|     uint32_t data = data64;
 | |
|     bool updated = false;
 | |
| 
 | |
|     if (reg >= ASPEED_AST2700_SCU_NR_REGS) {
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "%s: Out-of-bounds write at offset 0x%" HWADDR_PRIx "\n",
 | |
|                 __func__, offset);
 | |
|         return;
 | |
|     }
 | |
| 
 | |
|     trace_aspeed_ast2700_scuio_write(offset, size, data);
 | |
| 
 | |
|     switch (reg) {
 | |
|     case AST2700_SCUIO_CLK_STOP_CTL_1:
 | |
|     case AST2700_SCUIO_CLK_STOP_CTL_2:
 | |
|         s->regs[reg] |= data;
 | |
|         updated = true;
 | |
|         break;
 | |
|     case AST2700_SCUIO_CLK_STOP_CLR_1:
 | |
|     case AST2700_SCUIO_CLK_STOP_CLR_2:
 | |
|         s->regs[reg - 1] ^= data;
 | |
|         updated = true;
 | |
|         break;
 | |
|     default:
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "%s: Unhandled write at offset 0x%" HWADDR_PRIx "\n",
 | |
|                       __func__, offset);
 | |
|         break;
 | |
|     }
 | |
| 
 | |
|     if (!updated) {
 | |
|         s->regs[reg] = data;
 | |
|     }
 | |
| }
 | |
| 
 | |
| static const MemoryRegionOps aspeed_ast2700_scuio_ops = {
 | |
|     .read = aspeed_ast2700_scuio_read,
 | |
|     .write = aspeed_ast2700_scuio_write,
 | |
|     .endianness = DEVICE_LITTLE_ENDIAN,
 | |
|     .valid.min_access_size = 1,
 | |
|     .valid.max_access_size = 8,
 | |
|     .valid.unaligned = false,
 | |
| };
 | |
| 
 | |
| static const uint32_t ast2700_a0_resets_io[ASPEED_AST2700_SCU_NR_REGS] = {
 | |
|     [AST2700_SILICON_REV]               = 0x06000003,
 | |
|     [AST2700_HW_STRAP1]                 = 0x00000504,
 | |
|     [AST2700_HW_STRAP1_CLR]             = 0xFFF0FFF0,
 | |
|     [AST2700_HW_STRAP1_LOCK]            = 0x00000FFF,
 | |
|     [AST2700_HW_STRAP1_SEC1]            = 0x000000FF,
 | |
|     [AST2700_HW_STRAP1_SEC2]            = 0x00000000,
 | |
|     [AST2700_HW_STRAP1_SEC3]            = 0x1000408F,
 | |
|     [AST2700_SCUIO_CLK_STOP_CTL_1]      = 0xffff8400,
 | |
|     [AST2700_SCUIO_CLK_STOP_CTL_2]      = 0x00005f30,
 | |
|     [AST2700_SCUIO_CLK_SEL_1]           = 0x86900000,
 | |
|     [AST2700_SCUIO_CLK_SEL_2]           = 0x00400000,
 | |
|     [AST2700_SCUIO_HPLL_PARAM]          = 0x10000027,
 | |
|     [AST2700_SCUIO_HPLL_EXT_PARAM]      = 0x80000014,
 | |
|     [AST2700_SCUIO_APLL_PARAM]          = 0x1000001f,
 | |
|     [AST2700_SCUIO_APLL_EXT_PARAM]      = 0x8000000f,
 | |
|     [AST2700_SCUIO_DPLL_PARAM]          = 0x106e42ce,
 | |
|     [AST2700_SCUIO_DPLL_EXT_PARAM]      = 0x80000167,
 | |
|     [AST2700_SCUIO_DPLL_PARAM_READ]     = 0x106e42ce,
 | |
|     [AST2700_SCUIO_DPLL_EXT_PARAM_READ] = 0x80000167,
 | |
|     [AST2700_SCUIO_UARTCLK_GEN]         = 0x00014506,
 | |
|     [AST2700_SCUIO_HUARTCLK_GEN]        = 0x000145c0,
 | |
|     [AST2700_SCUIO_CLK_DUTY_MEAS_RST]   = 0x0c9100d2,
 | |
| };
 | |
| 
 | |
| static void aspeed_2700_scuio_class_init(ObjectClass *klass, void *data)
 | |
| {
 | |
|     DeviceClass *dc = DEVICE_CLASS(klass);
 | |
|     AspeedSCUClass *asc = ASPEED_SCU_CLASS(klass);
 | |
| 
 | |
|     dc->desc = "ASPEED 2700 System Control Unit I/O";
 | |
|     device_class_set_legacy_reset(dc, aspeed_ast2700_scu_reset);
 | |
|     asc->resets = ast2700_a0_resets_io;
 | |
|     asc->calc_hpll = aspeed_2600_scu_calc_hpll;
 | |
|     asc->get_apb = aspeed_2700_scuio_get_apb_freq;
 | |
|     asc->apb_divider = 2;
 | |
|     asc->nr_regs = ASPEED_AST2700_SCU_NR_REGS;
 | |
|     asc->clkin_25Mhz = true;
 | |
|     asc->ops = &aspeed_ast2700_scuio_ops;
 | |
| }
 | |
| 
 | |
| static const TypeInfo aspeed_2700_scu_info = {
 | |
|     .name = TYPE_ASPEED_2700_SCU,
 | |
|     .parent = TYPE_ASPEED_SCU,
 | |
|     .instance_size = sizeof(AspeedSCUState),
 | |
|     .class_init = aspeed_2700_scu_class_init,
 | |
| };
 | |
| 
 | |
| static const TypeInfo aspeed_2700_scuio_info = {
 | |
|     .name = TYPE_ASPEED_2700_SCUIO,
 | |
|     .parent = TYPE_ASPEED_SCU,
 | |
|     .instance_size = sizeof(AspeedSCUState),
 | |
|     .class_init = aspeed_2700_scuio_class_init,
 | |
| };
 | |
| 
 | |
| static const uint32_t ast1030_a1_resets[ASPEED_AST2600_SCU_NR_REGS] = {
 | |
|     [AST2600_SYS_RST_CTRL]      = 0xFFC3FED8,
 | |
|     [AST2600_SYS_RST_CTRL2]     = 0x09FFFFFC,
 | |
|     [AST2600_CLK_STOP_CTRL]     = 0xFFFF7F8A,
 | |
|     [AST2600_CLK_STOP_CTRL2]    = 0xFFF0FFF0,
 | |
|     [AST2600_DEBUG_CTRL2]       = 0x00000000,
 | |
|     [AST2600_HPLL_PARAM]        = 0x10004077,
 | |
|     [AST2600_HPLL_EXT]          = 0x00000031,
 | |
|     [AST2600_CLK_SEL4]          = 0x43F90900,
 | |
|     [AST2600_CLK_SEL5]          = 0x40000000,
 | |
|     [AST2600_CHIP_ID0]          = 0xDEADBEEF,
 | |
|     [AST2600_CHIP_ID1]          = 0x0BADCAFE,
 | |
| };
 | |
| 
 | |
| static void aspeed_ast1030_scu_reset(DeviceState *dev)
 | |
| {
 | |
|     AspeedSCUState *s = ASPEED_SCU(dev);
 | |
|     AspeedSCUClass *asc = ASPEED_SCU_GET_CLASS(dev);
 | |
| 
 | |
|     memcpy(s->regs, asc->resets, asc->nr_regs * 4);
 | |
| 
 | |
|     s->regs[AST2600_SILICON_REV] = AST1030_A1_SILICON_REV;
 | |
|     s->regs[AST2600_SILICON_REV2] = s->silicon_rev;
 | |
|     s->regs[AST2600_HW_STRAP1] = s->hw_strap1;
 | |
|     s->regs[AST2600_HW_STRAP2] = s->hw_strap2;
 | |
|     s->regs[PROT_KEY] = s->hw_prot_key;
 | |
| }
 | |
| 
 | |
| static void aspeed_1030_scu_class_init(ObjectClass *klass, void *data)
 | |
| {
 | |
|     DeviceClass *dc = DEVICE_CLASS(klass);
 | |
|     AspeedSCUClass *asc = ASPEED_SCU_CLASS(klass);
 | |
| 
 | |
|     dc->desc = "ASPEED 1030 System Control Unit";
 | |
|     device_class_set_legacy_reset(dc, aspeed_ast1030_scu_reset);
 | |
|     asc->resets = ast1030_a1_resets;
 | |
|     asc->calc_hpll = aspeed_2600_scu_calc_hpll;
 | |
|     asc->get_apb = aspeed_1030_scu_get_apb_freq;
 | |
|     asc->apb_divider = 2;
 | |
|     asc->nr_regs = ASPEED_AST2600_SCU_NR_REGS;
 | |
|     asc->clkin_25Mhz = true;
 | |
|     asc->ops = &aspeed_ast2600_scu_ops;
 | |
| }
 | |
| 
 | |
| static const TypeInfo aspeed_1030_scu_info = {
 | |
|     .name = TYPE_ASPEED_1030_SCU,
 | |
|     .parent = TYPE_ASPEED_SCU,
 | |
|     .instance_size = sizeof(AspeedSCUState),
 | |
|     .class_init = aspeed_1030_scu_class_init,
 | |
| };
 | |
| 
 | |
| static void aspeed_scu_register_types(void)
 | |
| {
 | |
|     type_register_static(&aspeed_scu_info);
 | |
|     type_register_static(&aspeed_2400_scu_info);
 | |
|     type_register_static(&aspeed_2500_scu_info);
 | |
|     type_register_static(&aspeed_2600_scu_info);
 | |
|     type_register_static(&aspeed_1030_scu_info);
 | |
|     type_register_static(&aspeed_2700_scu_info);
 | |
|     type_register_static(&aspeed_2700_scuio_info);
 | |
| }
 | |
| 
 | |
| type_init(aspeed_scu_register_types);
 |