From c0f037f6a2ae2cb869a350534cef9771358fabcf Mon Sep 17 00:00:00 2001 From: Igor Opaniuk Date: Mon, 30 Dec 2019 13:56:44 +0200 Subject: mach-imx: bootaux: elf firmware support Currently imx-specific bootaux command doesn't support ELF format firmware for Cortex-M4 core. This patches introduces a PoC implementation of handling elf firmware (load_elf_image_phdr() was copy-pasted from elf.c just for PoC). ELF64 binaries isn't supported yet. This has the advantage that the user does not need to know to which address the binary has been linked to. However, in order to handle and load the elf sections to the right address, we need to translate the Cortex-M4 core memory addresses to primary/host CPU memory addresses (Cortex A7/A9 cores). This allows to boot firmwares from any location with just using bootaux, e.g.: > tftp ${loadaddr} hello_world.elf && bootaux ${loadaddr} Similar translation table can be found in the Linux remoteproc driver [1]. [1] https://elixir.bootlin.com/linux/latest/source/drivers/remoteproc/imx_rproc.c Signed-off-by: Igor Opaniuk Signed-off-by: Stefan Agner Reviewed-by: Oleksandr Suvorov --- arch/arm/include/asm/mach-imx/sys_proto.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/mach-imx/sys_proto.h b/arch/arm/include/asm/mach-imx/sys_proto.h index c9b509e6a79..fff48008087 100644 --- a/arch/arm/include/asm/mach-imx/sys_proto.h +++ b/arch/arm/include/asm/mach-imx/sys_proto.h @@ -106,6 +106,13 @@ void gpr_init(void); #endif /* CONFIG_MX6 */ +/* address translation table */ +struct rproc_att { + u32 da; /* device address (From Cortex M4 view) */ + u32 sa; /* system bus address */ + u32 size; /* size of reg range */ +}; + #ifdef CONFIG_IMX8M struct rom_api { u16 ver; -- cgit v1.2.3 From 83083febf55679ee0fc68ba55e9af43add277b58 Mon Sep 17 00:00:00 2001 From: Frieder Schrempf Date: Wed, 11 Dec 2019 10:01:19 +0000 Subject: ddr: imx8m: Return error values from LPDDR4 training In cases when the same SPL should run on boards with i.MX8MM, that differ in DDR configuration, it is necessary to try different parameters and check if the training done by the firmware suceeds or not. Therefore we return the DDR training/initialization success to the upper layer in order to be able to retry with different settings if necessary. Signed-off-by: Frieder Schrempf --- arch/arm/include/asm/arch-imx8m/ddr.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/arch-imx8m/ddr.h b/arch/arm/include/asm/arch-imx8m/ddr.h index 53d46256d8b..7a2a2d8edce 100644 --- a/arch/arm/include/asm/arch-imx8m/ddr.h +++ b/arch/arm/include/asm/arch-imx8m/ddr.h @@ -703,14 +703,14 @@ struct dram_timing_info { extern struct dram_timing_info dram_timing; void ddr_load_train_firmware(enum fw_type type); -void ddr_init(struct dram_timing_info *timing_info); -void ddr_cfg_phy(struct dram_timing_info *timing_info); +int ddr_init(struct dram_timing_info *timing_info); +int ddr_cfg_phy(struct dram_timing_info *timing_info); void load_lpddr4_phy_pie(void); void ddrphy_trained_csr_save(struct dram_cfg_param *param, unsigned int num); void dram_config_save(struct dram_timing_info *info, unsigned long base); /* utils function for ddr phy training */ -void wait_ddrphy_training_complete(void); +int wait_ddrphy_training_complete(void); void ddrphy_init_set_dfi_clk(unsigned int drate); void ddrphy_init_read_msg_block(enum fw_type type); -- cgit v1.2.3 From bb09bd5f6913c69a94a89cbc6e6576b5fb3a4c11 Mon Sep 17 00:00:00 2001 From: Rasmus Villemoes Date: Thu, 12 Sep 2019 09:17:09 +0000 Subject: arm: mxs: fix register definitions for clkctrl_gpmi and clkctrl_sspX I tried clearing a bit by writing to hw_clkctrl_gpmi_clr, then busy-waiting for it to actually clear. My board hung. The data sheet agrees, these registers do not have _set, _clr, _tog, so fix up the definitions. git grep -E 'clkctrl_(gpmi|ssp[0-9])_' says that nobody uses those non-existing ops registers. Signed-off-by: Rasmus Villemoes --- arch/arm/include/asm/arch-mxs/regs-clkctrl-mx23.h | 6 ++++-- arch/arm/include/asm/arch-mxs/regs-clkctrl-mx28.h | 15 ++++++++++----- 2 files changed, 14 insertions(+), 7 deletions(-) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/arch-mxs/regs-clkctrl-mx23.h b/arch/arm/include/asm/arch-mxs/regs-clkctrl-mx23.h index 6e9ffeb6d56..50fdc9cd032 100644 --- a/arch/arm/include/asm/arch-mxs/regs-clkctrl-mx23.h +++ b/arch/arm/include/asm/arch-mxs/regs-clkctrl-mx23.h @@ -24,8 +24,10 @@ struct mxs_clkctrl_regs { mxs_reg_32(hw_clkctrl_xbus) /* 0x40 */ mxs_reg_32(hw_clkctrl_xtal) /* 0x50 */ mxs_reg_32(hw_clkctrl_pix) /* 0x60 */ - mxs_reg_32(hw_clkctrl_ssp0) /* 0x70 */ - mxs_reg_32(hw_clkctrl_gpmi) /* 0x80 */ + uint32_t hw_clkctrl_ssp0; /* 0x70 */ + uint32_t reserved_ssp0[3]; /* 0x74-0x7c */ + uint32_t hw_clkctrl_gpmi; /* 0x80 */ + uint32_t reserved_gpmi[3]; /* 0x84-0x8c */ mxs_reg_32(hw_clkctrl_spdif) /* 0x90 */ mxs_reg_32(hw_clkctrl_emi) /* 0xa0 */ diff --git a/arch/arm/include/asm/arch-mxs/regs-clkctrl-mx28.h b/arch/arm/include/asm/arch-mxs/regs-clkctrl-mx28.h index 01e0a7a0539..caef9e4b1fc 100644 --- a/arch/arm/include/asm/arch-mxs/regs-clkctrl-mx28.h +++ b/arch/arm/include/asm/arch-mxs/regs-clkctrl-mx28.h @@ -27,11 +27,16 @@ struct mxs_clkctrl_regs { mxs_reg_32(hw_clkctrl_hbus) /* 0x60 */ mxs_reg_32(hw_clkctrl_xbus) /* 0x70 */ mxs_reg_32(hw_clkctrl_xtal) /* 0x80 */ - mxs_reg_32(hw_clkctrl_ssp0) /* 0x90 */ - mxs_reg_32(hw_clkctrl_ssp1) /* 0xa0 */ - mxs_reg_32(hw_clkctrl_ssp2) /* 0xb0 */ - mxs_reg_32(hw_clkctrl_ssp3) /* 0xc0 */ - mxs_reg_32(hw_clkctrl_gpmi) /* 0xd0 */ + uint32_t hw_clkctrl_ssp0; /* 0x90 */ + uint32_t reserved_ssp0[3]; /* 0x94-0x9c */ + uint32_t hw_clkctrl_ssp1; /* 0xa0 */ + uint32_t reserved_ssp1[3]; /* 0xa4-0xac */ + uint32_t hw_clkctrl_ssp2; /* 0xb0 */ + uint32_t reserved_ssp2[3]; /* 0xb4-0xbc */ + uint32_t hw_clkctrl_ssp3; /* 0xc0 */ + uint32_t reserved_ssp3[3]; /* 0xc4-0xcc */ + uint32_t hw_clkctrl_gpmi; /* 0xd0 */ + uint32_t reserved_gpmi[3]; /* 0xd4-0xdc */ mxs_reg_32(hw_clkctrl_spdif) /* 0xe0 */ mxs_reg_32(hw_clkctrl_emi) /* 0xf0 */ mxs_reg_32(hw_clkctrl_saif0) /* 0x100 */ -- cgit v1.2.3