diff options
| -rw-r--r-- | arch/arm/cpu/armv7/zynq/cpu.c | 26 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-zynq/hardware.h | 46 |
2 files changed, 70 insertions, 2 deletions
diff --git a/arch/arm/cpu/armv7/zynq/cpu.c b/arch/arm/cpu/armv7/zynq/cpu.c index 91618d3..e8f4c19 100644 --- a/arch/arm/cpu/armv7/zynq/cpu.c +++ b/arch/arm/cpu/armv7/zynq/cpu.c @@ -21,9 +21,33 @@ * MA 02111-1307 USA */ #include <common.h> +#include <asm/io.h> #include <asm/arch/sys_proto.h> +#include <asm/arch/hardware.h> -inline void lowlevel_init(void) {} +void lowlevel_init(void) +{ + zynq_slcr_unlock(); + /* remap DDR to zero, FILTERSTART */ + writel(0, &scu_base->filter_start); + + /* Device config APB, unlock the PCAP */ + writel(0x757BDF0D, &devcfg_base->unlock); + writel(0xFFFFFFFF, &devcfg_base->rom_shadow); + + /* OCM_CFG, Mask out the ROM, map ram into upper addresses */ + writel(0x1F, &slcr_base->ocm_cfg); + /* FPGA_RST_CTRL, clear resets on AXI fabric ports */ + writel(0x0, &slcr_base->fpga_rst_ctrl); + /* TZ_DDR_RAM, Set DDR trust zone non-secure */ + writel(0xFFFFFFFF, &slcr_base->trust_zone); + /* Set urgent bits with register */ + writel(0x0, &slcr_base->ddr_urgent_sel); + /* Urgent write, ports S2/S3 */ + writel(0xC, &slcr_base->ddr_urgent); + + zynq_slcr_lock(); +} void reset_cpu(ulong addr) { diff --git a/arch/arm/include/asm/arch-zynq/hardware.h b/arch/arm/include/asm/arch-zynq/hardware.h index ad17b27..d0c69da 100644 --- a/arch/arm/include/asm/arch-zynq/hardware.h +++ b/arch/arm/include/asm/arch-zynq/hardware.h @@ -24,6 +24,8 @@ #define _ASM_ARCH_HARDWARE_H #define XPSS_SYS_CTRL_BASEADDR 0xF8000000 +#define XPSS_DEV_CFG_APB_BASEADDR 0xF8007000 +#define XPSS_SCU_BASEADDR 0xF8F00000 /* Reflect slcr offsets */ struct slcr_regs { @@ -32,10 +34,52 @@ struct slcr_regs { u32 slcr_unlock; /* 0x8 */ u32 reserved1[125]; u32 pss_rst_ctrl; /* 0x200 */ - u32 reserved2[21]; + u32 reserved2[15]; + u32 fpga_rst_ctrl; /* 0x240 */ + u32 reserved3[5]; u32 reboot_status; /* 0x258 */ + u32 boot_mode; /* 0x25c */ + u32 reserved4[116]; + u32 trust_zone; /* 0x430 */ /* FIXME */ + u32 reserved5[115]; + u32 ddr_urgent; /* 0x600 */ + u32 reserved6[6]; + u32 ddr_urgent_sel; /* 0x61c */ + u32 reserved7[188]; + u32 ocm_cfg; /* 0x910 */ }; #define slcr_base ((struct slcr_regs *) XPSS_SYS_CTRL_BASEADDR) +struct devcfg_regs { + u32 ctrl; /* 0x0 */ + u32 lock; /* 0x4 */ + u32 cfg; /* 0x8 */ + u32 int_sts; /* 0xc */ + u32 int_mask; /* 0x10 */ + u32 status; /* 0x14 */ + u32 dma_src_addr; /* 0x18 */ + u32 dma_dst_addr; /* 0x1c */ + u32 dma_src_len; /* 0x20 */ + u32 dma_dst_len; /* 0x24 */ + u32 rom_shadow; /* 0x28 */ + u32 reserved1[2]; + u32 unlock; /* 0x34 */ + u32 reserved2[18]; + u32 mctrl; /* 0x80 */ + u32 reserved3; + u32 write_count; /* 0x88 */ + u32 read_count; /* 0x8c */ +}; + +#define devcfg_base ((struct devcfg_regs *) XPSS_DEV_CFG_APB_BASEADDR) + +struct scu_regs { + u32 reserved1[16]; + u32 filter_start; /* 0x40 */ + u32 filter_end; /* 0x44 */ +}; + +#define scu_base ((struct scu_regs *) XPSS_SCU_BASEADDR) + #endif /* _ASM_ARCH_HARDWARE_H */ |