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author | Soren Brinkmann <soren.brinkmann@xilinx.com> | 2013-07-17 10:10:14 -0700 |
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committer | Michal Simek <michal.simek@xilinx.com> | 2013-07-26 14:14:39 +0200 |
commit | b5f177ff305b3db63b5ea273e6471708790133f2 (patch) | |
tree | b8f4b981ee2097a94b6daec6a1b0e2ad0cec6982 /arch/arm/mach-zynq/slcr.c | |
parent | c323f2a188e333a6d8ee5ebb7cd2460020459f74 (diff) | |
download | linux-b5f177ff305b3db63b5ea273e6471708790133f2.tar.bz2 |
arm: zynq: slcr: Clean up #defines
Use a common naming scheme for register offset #defines:
Some of those used a '_OFFSET' suffix to distinguish them from others.
This scheme is used for all register offsets now.
Separate the register offset #defines from others and sort them in
increasing order.
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'arch/arm/mach-zynq/slcr.c')
-rw-r--r-- | arch/arm/mach-zynq/slcr.c | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/arch/arm/mach-zynq/slcr.c b/arch/arm/mach-zynq/slcr.c index 232c27502320..44a4ab62e9a8 100644 --- a/arch/arm/mach-zynq/slcr.c +++ b/arch/arm/mach-zynq/slcr.c @@ -19,17 +19,16 @@ #include <linux/clk/zynq.h> #include "common.h" -#define SLCR_UNLOCK_MAGIC 0xDF0D -#define SLCR_UNLOCK 0x8 /* SCLR unlock register */ - +/* register offsets */ +#define SLCR_UNLOCK_OFFSET 0x8 /* SCLR unlock register */ #define SLCR_PS_RST_CTRL_OFFSET 0x200 /* PS Software Reset Control */ +#define SLCR_A9_CPU_RST_CTRL_OFFSET 0x244 /* CPU Software Reset Control */ +#define SLCR_REBOOT_STATUS_OFFSET 0x258 /* PS Reboot Status */ +#define SLCR_UNLOCK_MAGIC 0xDF0D #define SLCR_A9_CPU_CLKSTOP 0x10 #define SLCR_A9_CPU_RST 0x1 -#define SLCR_A9_CPU_RST_CTRL 0x244 /* CPU Software Reset Control */ -#define SLCR_REBOOT_STATUS 0x258 /* PS Reboot Status */ - void __iomem *zynq_slcr_base; /** @@ -44,15 +43,15 @@ void zynq_slcr_system_reset(void) * Note that this seems to require raw i/o * functions or there's a lockup? */ - writel(SLCR_UNLOCK_MAGIC, zynq_slcr_base + SLCR_UNLOCK); + writel(SLCR_UNLOCK_MAGIC, zynq_slcr_base + SLCR_UNLOCK_OFFSET); /* * Clear 0x0F000000 bits of reboot status register to workaround * the FSBL not loading the bitstream after soft-reboot * This is a temporary solution until we know more. */ - reboot = readl(zynq_slcr_base + SLCR_REBOOT_STATUS); - writel(reboot & 0xF0FFFFFF, zynq_slcr_base + SLCR_REBOOT_STATUS); + reboot = readl(zynq_slcr_base + SLCR_REBOOT_STATUS_OFFSET); + writel(reboot & 0xF0FFFFFF, zynq_slcr_base + SLCR_REBOOT_STATUS_OFFSET); writel(1, zynq_slcr_base + SLCR_PS_RST_CTRL_OFFSET); } @@ -64,9 +63,9 @@ void zynq_slcr_cpu_start(int cpu) { /* enable CPUn */ writel(SLCR_A9_CPU_CLKSTOP << cpu, - zynq_slcr_base + SLCR_A9_CPU_RST_CTRL); + zynq_slcr_base + SLCR_A9_CPU_RST_CTRL_OFFSET); /* enable CLK for CPUn */ - writel(0x0 << cpu, zynq_slcr_base + SLCR_A9_CPU_RST_CTRL); + writel(0x0 << cpu, zynq_slcr_base + SLCR_A9_CPU_RST_CTRL_OFFSET); } /** @@ -77,7 +76,7 @@ void zynq_slcr_cpu_stop(int cpu) { /* stop CLK and reset CPUn */ writel((SLCR_A9_CPU_CLKSTOP | SLCR_A9_CPU_RST) << cpu, - zynq_slcr_base + SLCR_A9_CPU_RST_CTRL); + zynq_slcr_base + SLCR_A9_CPU_RST_CTRL_OFFSET); } /** @@ -103,7 +102,7 @@ int __init zynq_slcr_init(void) } /* unlock the SLCR so that registers can be changed */ - writel(SLCR_UNLOCK_MAGIC, zynq_slcr_base + SLCR_UNLOCK); + writel(SLCR_UNLOCK_MAGIC, zynq_slcr_base + SLCR_UNLOCK_OFFSET); pr_info("%s mapped to %p\n", np->name, zynq_slcr_base); |