mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-29 22:43:10 +00:00
efe19295a5
This patch provides possibility for field fail-safe u-boot updates. The implementation can be used on all pg-wcom boards that are booting from parallel NOR flash. When used in a board design, provided check_for_uboot_update function will start new u-boot at defined location if updateduboot envvar is set to yes. With this implementation it is expected that factory programmed u-boot will always stay as it is, and optionally new u-boot can be safely programmed by embedded software when the unit is rolled out on the field. It is expected check_for_uboot_update to be called early in execution before relocation (*_f) once SoC is basically initialized and environment can be read, with this possibilities to not be able to fix a u-boot bug by a u-boot update are reduced to minimum. Signed-off-by: Aleksandar Gerasimovski <aleksandar.gerasimovski@hitachienergy.com> Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
150 lines
2.8 KiB
C
150 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2008
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* Heiko Schocher, DENX Software Engineering, hs@denx.de.
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*/
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#ifndef __KEYMILE_COMMON_H
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#define __KEYMILE_COMMON_H
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#define WRG_RESET 0x80
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#define H_OPORTS_14 0x40
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#define WRG_LED 0x02
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#define WRL_BOOT 0x01
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#define OPRTL_XBUFENA 0x20
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#define H_OPORTS_SCC4_ENA 0x10
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#define H_OPORTS_SCC4_FD_ENA 0x04
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#define H_OPORTS_FCC1_PW_DWN 0x01
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#define PIGGY_PRESENT 0x80
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struct km_bec_fpga {
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unsigned char id;
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unsigned char rev;
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unsigned char oprth;
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unsigned char oprtl;
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unsigned char res1[3];
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unsigned char bprth;
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unsigned char bprtl;
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unsigned char gprt3;
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unsigned char gprt2;
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unsigned char gprt1;
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unsigned char gprt0;
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unsigned char res2[2];
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unsigned char prst;
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unsigned char res3[0xfff0];
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unsigned char pgy_id;
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unsigned char pgy_rev;
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unsigned char pgy_outputs;
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unsigned char pgy_eth;
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};
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#define BFTICU_DIPSWITCH_MASK 0x0f
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/*
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* BFTICU FPGA iomap
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* BFTICU is used on mgcoge and mgocge3ne
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*/
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struct bfticu_iomap {
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u8 xi_ena; /* General defect enable */
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u8 pack1[3];
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u8 en_csn;
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u8 pack2;
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u8 safe_mem;
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u8 pack3;
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u8 id;
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u8 pack4;
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u8 rev;
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u8 build;
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u8 p_frc;
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u8 p_msk;
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u8 pack5[2];
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u8 xg_int;
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u8 pack6[15];
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u8 s_conf;
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u8 pack7;
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u8 dmx_conf12;
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u8 pack8;
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u8 s_clkslv;
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u8 pack9[11];
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u8 d_conf;
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u8 d_mask_ca;
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u8 d_pll_del;
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u8 pack10[16];
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u8 t_conf_ca;
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u8 t_mask_ca;
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u8 pack11[13];
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u8 m_def0;
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u8 m_def1;
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u8 m_def2;
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u8 m_def3;
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u8 m_def4;
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u8 m_def5;
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u8 m_def_trap0;
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u8 m_def_trap1;
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u8 m_def_trap2;
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u8 m_def_trap3;
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u8 m_def_trap4;
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u8 m_def_trap5;
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u8 m_mask_def0;
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u8 m_mask_def1;
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u8 m_mask_def2;
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u8 m_mask_def3;
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u8 m_mask_def4;
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u8 m_mask_def5;
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u8 m_def_mask0;
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u8 m_def_mask1;
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u8 m_def_mask2;
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u8 m_def_mask3;
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u8 m_def_mask4;
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u8 m_def_mask5;
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u8 m_def_pri;
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u8 pack12[11];
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u8 hw_status;
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u8 pack13;
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u8 hw_control1;
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u8 hw_control2;
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u8 hw_control3;
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u8 pack14[7];
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u8 led_on; /* Leds */
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u8 pack15;
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u8 sfp_control; /* SFP modules */
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u8 pack16;
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u8 alarm_control; /* Alarm output */
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u8 pack17;
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u8 icps; /* ICN clock pulse shaping */
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u8 mswitch; /* Read mode switch */
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u8 pack18[6];
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u8 pb_dbug;
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};
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int ethernet_present(void);
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int ivm_read_eeprom(unsigned char *buf, int len, int mac_address_offset);
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int ivm_analyze_eeprom(unsigned char *buf, int len);
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int trigger_fpga_config(void);
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int wait_for_fpga_config(void);
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int fpga_reset(void);
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int toggle_eeprom_spi_bus(void);
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int get_testpin(void);
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int set_km_env(void);
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ulong early_bootcount_load(void);
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void early_bootcount_store(ulong ebootcount);
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void check_for_uboot_update(void);
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#define DELAY_ABORT_SEQ 62 /* @200kHz 9 clocks = 44us, 62us is ok */
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#define DELAY_HALF_PERIOD (500 / (CONFIG_SYS_I2C_SPEED / 1000))
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void set_sda(int state);
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void set_scl(int state);
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int get_sda(void);
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int get_scl(void);
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int i2c_soft_read_pin(void);
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int i2c_make_abort(void);
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#endif /* __KEYMILE_COMMON_H */
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