diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/cpu/armv7/zynq/slcr.c | 35 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-zynq/hardware.h | 10 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-zynq/sys_proto.h | 3 |
3 files changed, 46 insertions, 2 deletions
diff --git a/arch/arm/cpu/armv7/zynq/slcr.c b/arch/arm/cpu/armv7/zynq/slcr.c index 5a8674ab2c..52048c6766 100644 --- a/arch/arm/cpu/armv7/zynq/slcr.c +++ b/arch/arm/cpu/armv7/zynq/slcr.c @@ -28,6 +28,9 @@ #define SLCR_LOCK_MAGIC 0x767B #define SLCR_UNLOCK_MAGIC 0xDF0D +#define SLCR_IDCODE_MASK 0x1F000 +#define SLCR_IDCODE_SHIFT 12 + static int slcr_lock = 1; /* 1 means locked, 0 means unlocked */ void zynq_slcr_lock(void) @@ -87,3 +90,35 @@ void zynq_slcr_gem_clk_setup(u32 gem_id, u32 rclk, u32 clk) out: zynq_slcr_lock(); } + +void zynq_slcr_devcfg_disable(void) +{ + zynq_slcr_unlock(); + + /* Disable AXI interface */ + writel(0xFFFFFFFF, &slcr_base->fpga_rst_ctrl); + + /* Set Level Shifters DT618760 */ + writel(0xA, &slcr_base->lvl_shftr_en); + + zynq_slcr_lock(); +} + +void zynq_slcr_devcfg_enable(void) +{ + zynq_slcr_unlock(); + + /* Set Level Shifters DT618760 */ + writel(0xF, &slcr_base->lvl_shftr_en); + + /* Disable AXI interface */ + writel(0x0, &slcr_base->fpga_rst_ctrl); + + zynq_slcr_lock(); +} + +u32 zynq_slcr_get_idcode(void) +{ + return (readl(&slcr_base->pss_idcode) & SLCR_IDCODE_MASK) >> + SLCR_IDCODE_SHIFT; +} diff --git a/arch/arm/include/asm/arch-zynq/hardware.h b/arch/arm/include/asm/arch-zynq/hardware.h index 6af892a789..8b8a91ae65 100644 --- a/arch/arm/include/asm/arch-zynq/hardware.h +++ b/arch/arm/include/asm/arch-zynq/hardware.h @@ -53,11 +53,17 @@ struct slcr_regs { u32 boot_mode; /* 0x25c */ u32 reserved4[116]; u32 trust_zone; /* 0x430 */ /* FIXME */ - u32 reserved5[115]; + u32 reserved5_1[63]; + u32 pss_idcode; /* 0x530 */ + u32 reserved5_2[51]; u32 ddr_urgent; /* 0x600 */ u32 reserved6[6]; u32 ddr_urgent_sel; /* 0x61c */ - u32 reserved7[188]; + u32 reserved7[56]; + u32 mio_pin[54]; /* 0x700 - 0x7D4 */ + u32 reserved8[74]; + u32 lvl_shftr_en; /* 0x900 */ + u32 reserved9[3]; u32 ocm_cfg; /* 0x910 */ }; diff --git a/arch/arm/include/asm/arch-zynq/sys_proto.h b/arch/arm/include/asm/arch-zynq/sys_proto.h index af9e7f8d4c..2317121ca6 100644 --- a/arch/arm/include/asm/arch-zynq/sys_proto.h +++ b/arch/arm/include/asm/arch-zynq/sys_proto.h @@ -27,6 +27,9 @@ extern void zynq_slcr_lock(void); extern void zynq_slcr_unlock(void); extern void zynq_slcr_cpu_reset(void); extern void zynq_slcr_gem_clk_setup(u32 gem_id, u32 rclk, u32 clk); +extern void zynq_slcr_devcfg_disable(void); +extern void zynq_slcr_devcfg_enable(void); +extern u32 zynq_slcr_get_idcode(void); /* Driver extern functions */ extern int zynq_sdhci_init(u32 regbase); |
