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      1 /* SPDX-License-Identifier: GPL-2.0+ */
      2 /*
      3  * (C) Copyright 2009
      4  * Marvell Semiconductor <www.marvell.com>
      5  * Written-by: Prafulla Wadaskar <prafulla (at) marvell.com>
      6  */
      7 
      8 #ifndef _MVEBU_CPU_H
      9 #define _MVEBU_CPU_H
     10 
     11 #include <asm/system.h>
     12 
     13 #ifndef __ASSEMBLY__
     14 
     15 #define MVEBU_REG_PCIE_DEVID		(MVEBU_REG_PCIE_BASE + 0x00)
     16 #define MVEBU_REG_PCIE_REVID		(MVEBU_REG_PCIE_BASE + 0x08)
     17 
     18 enum memory_bank {
     19 	BANK0,
     20 	BANK1,
     21 	BANK2,
     22 	BANK3
     23 };
     24 
     25 enum cpu_winen {
     26 	CPU_WIN_DISABLE,
     27 	CPU_WIN_ENABLE
     28 };
     29 
     30 enum cpu_target {
     31 	CPU_TARGET_DRAM = 0x0,
     32 	CPU_TARGET_DEVICEBUS_BOOTROM_SPI = 0x1,
     33 	CPU_TARGET_ETH23 = 0x3,
     34 	CPU_TARGET_PCIE02 = 0x4,
     35 	CPU_TARGET_ETH01 = 0x7,
     36 	CPU_TARGET_PCIE13 = 0x8,
     37 	CPU_TARGET_SASRAM = 0x9,
     38 	CPU_TARGET_SATA01 = 0xa, /* A38X */
     39 	CPU_TARGET_NAND = 0xd,
     40 	CPU_TARGET_SATA23_DFX = 0xe, /* A38X */
     41 };
     42 
     43 enum cpu_attrib {
     44 	CPU_ATTR_SASRAM = 0x01,
     45 	CPU_ATTR_DRAM_CS0 = 0x0e,
     46 	CPU_ATTR_DRAM_CS1 = 0x0d,
     47 	CPU_ATTR_DRAM_CS2 = 0x0b,
     48 	CPU_ATTR_DRAM_CS3 = 0x07,
     49 	CPU_ATTR_NANDFLASH = 0x2f,
     50 	CPU_ATTR_SPIFLASH = 0x1e,
     51 	CPU_ATTR_SPI0_CS0 = 0x1e,
     52 	CPU_ATTR_SPI0_CS1 = 0x5e,
     53 	CPU_ATTR_SPI1_CS2 = 0x9a,
     54 	CPU_ATTR_BOOTROM = 0x1d,
     55 	CPU_ATTR_PCIE_IO = 0xe0,
     56 	CPU_ATTR_PCIE_MEM = 0xe8,
     57 	CPU_ATTR_DEV_CS0 = 0x3e,
     58 	CPU_ATTR_DEV_CS1 = 0x3d,
     59 	CPU_ATTR_DEV_CS2 = 0x3b,
     60 	CPU_ATTR_DEV_CS3 = 0x37,
     61 };
     62 
     63 enum {
     64 	MVEBU_SOC_AXP,
     65 	MVEBU_SOC_A375,
     66 	MVEBU_SOC_A38X,
     67 	MVEBU_SOC_MSYS,
     68 	MVEBU_SOC_UNKNOWN,
     69 };
     70 
     71 /*
     72  * Default Device Address MAP BAR values
     73  */
     74 #define MBUS_PCI_MEM_BASE	0xE8000000
     75 #define MBUS_PCI_MEM_SIZE	(128 << 20)
     76 #define MBUS_PCI_IO_BASE	0xF1100000
     77 #define MBUS_PCI_IO_SIZE	(64 << 10)
     78 #define MBUS_SPI_BASE		0xF4000000
     79 #define MBUS_SPI_SIZE		(8 << 20)
     80 #define MBUS_BOOTROM_BASE	0xF8000000
     81 #define MBUS_BOOTROM_SIZE	(8 << 20)
     82 
     83 struct mbus_win {
     84 	u32 base;
     85 	u32 size;
     86 	u8 target;
     87 	u8 attr;
     88 };
     89 
     90 /*
     91  * System registers
     92  * Ref: Datasheet sec:A.28
     93  */
     94 struct mvebu_system_registers {
     95 #if defined(CONFIG_ARMADA_375)
     96 	u8 pad1[0x54];
     97 #else
     98 	u8 pad1[0x60];
     99 #endif
    100 	u32 rstoutn_mask; /* 0x60 */
    101 	u32 sys_soft_rst; /* 0x64 */
    102 };
    103 
    104 /*
    105  * GPIO Registers
    106  * Ref: Datasheet sec:A.19
    107  */
    108 struct kwgpio_registers {
    109 	u32 dout;
    110 	u32 oe;
    111 	u32 blink_en;
    112 	u32 din_pol;
    113 	u32 din;
    114 	u32 irq_cause;
    115 	u32 irq_mask;
    116 	u32 irq_level;
    117 };
    118 
    119 struct sar_freq_modes {
    120 	u8 val;
    121 	u8 ffc;		/* Fabric Frequency Configuration */
    122 	u32 p_clk;
    123 	u32 nb_clk;
    124 	u32 d_clk;
    125 };
    126 
    127 /* Needed for dynamic (board-specific) mbus configuration */
    128 extern struct mvebu_mbus_state mbus_state;
    129 
    130 /*
    131  * functions
    132  */
    133 unsigned int mvebu_sdram_bar(enum memory_bank bank);
    134 unsigned int mvebu_sdram_bs(enum memory_bank bank);
    135 void mvebu_sdram_size_adjust(enum memory_bank bank);
    136 int mvebu_mbus_probe(struct mbus_win windows[], int count);
    137 int mvebu_soc_family(void);
    138 u32 mvebu_get_nand_clock(void);
    139 
    140 void return_to_bootrom(void);
    141 
    142 int mv_sdh_init(unsigned long regbase, u32 max_clk, u32 min_clk, u32 quirks);
    143 
    144 void get_sar_freq(struct sar_freq_modes *sar_freq);
    145 
    146 /*
    147  * Highspeed SERDES PHY config init, ported from bin_hdr
    148  * to mainline U-Boot
    149  */
    150 int serdes_phy_config(void);
    151 
    152 /*
    153  * DDR3 init / training code ported from Marvell bin_hdr. Now
    154  * available in mainline U-Boot in:
    155  * drivers/ddr/marvell
    156  */
    157 int ddr3_init(void);
    158 
    159 struct mvebu_lcd_info {
    160 	u32 fb_base;
    161 	int x_res;
    162 	int y_res;
    163 	int x_fp;		/* frontporch */
    164 	int y_fp;
    165 	int x_bp;		/* backporch */
    166 	int y_bp;
    167 };
    168 
    169 int mvebu_lcd_register_init(struct mvebu_lcd_info *lcd_info);
    170 
    171 /*
    172  * get_ref_clk
    173  *
    174  * return: reference clock in MHz (25 or 40)
    175  */
    176 u32 get_ref_clk(void);
    177 
    178 #endif /* __ASSEMBLY__ */
    179 #endif /* _MVEBU_CPU_H */
    180