u-boot/arch/arm/include/asm/arch-uniphier/sg-regs.h
Masahiro Yamada 2d5d1c9e29 ARM: UniPhier: add set_pinsel macro for use in assembly code
The function sg_set_pinsel is useful for switching I/O pins
but it can be only used in C code.  This commit adds a simple
macro that is available in asm code.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-11-12 00:22:23 +09:00

193 lines
4.7 KiB
C

/*
* UniPhier SG (SoC Glue) block registers
*
* Copyright (C) 2011-2014 Panasonic Corporation
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef ARCH_SG_REGS_H
#define ARCH_SG_REGS_H
/* Base Address */
#define SG_CTRL_BASE 0x5f800000
#define SG_DBG_BASE 0x5f900000
/* Revision */
#define SG_REVISION (SG_CTRL_BASE | 0x0000)
#define SG_REVISION_TYPE_SHIFT 16
#define SG_REVISION_TYPE_MASK (0xff << SG_REVISION_TYPE_SHIFT)
#define SG_REVISION_MODEL_SHIFT 8
#define SG_REVISION_MODEL_MASK (0x3 << SG_REVISION_MODEL_SHIFT)
#define SG_REVISION_REV_SHIFT 0
#define SG_REVISION_REV_MASK (0x1f << SG_REVISION_REV_SHIFT)
/* Memory Configuration */
#define SG_MEMCONF (SG_CTRL_BASE | 0x0400)
#define SG_MEMCONF_CH0_SIZE_64MB ((0x0 << 10) | (0x01 << 0))
#define SG_MEMCONF_CH0_SIZE_128MB ((0x0 << 10) | (0x02 << 0))
#define SG_MEMCONF_CH0_SIZE_256MB ((0x0 << 10) | (0x03 << 0))
#define SG_MEMCONF_CH0_SIZE_512MB ((0x1 << 10) | (0x00 << 0))
#define SG_MEMCONF_CH0_SIZE_1024MB ((0x1 << 10) | (0x01 << 0))
#define SG_MEMCONF_CH0_NUM_1 (0x1 << 8)
#define SG_MEMCONF_CH0_NUM_2 (0x0 << 8)
#define SG_MEMCONF_CH1_SIZE_64MB ((0x0 << 11) | (0x01 << 2))
#define SG_MEMCONF_CH1_SIZE_128MB ((0x0 << 11) | (0x02 << 2))
#define SG_MEMCONF_CH1_SIZE_256MB ((0x0 << 11) | (0x03 << 2))
#define SG_MEMCONF_CH1_SIZE_512MB ((0x1 << 11) | (0x00 << 2))
#define SG_MEMCONF_CH1_SIZE_1024MB ((0x1 << 11) | (0x01 << 2))
#define SG_MEMCONF_CH1_NUM_1 (0x1 << 9)
#define SG_MEMCONF_CH1_NUM_2 (0x0 << 9)
#define SG_MEMCONF_SPARSEMEM (0x1 << 4)
/* Pin Control */
#define SG_PINCTRL_BASE (SG_CTRL_BASE | 0x1000)
#if defined(CONFIG_MACH_PH1_PRO4)
# define SG_PINCTRL(n) (SG_PINCTRL_BASE + (n) * 8)
#elif defined(CONFIG_MACH_PH1_LD4) || defined(CONFIG_MACH_PH1_SLD8)
# define SG_PINCTRL(n) (SG_PINCTRL_BASE + (n) * 4)
#endif
#if defined(CONFIG_MACH_PH1_PRO4)
#define SG_PINSELBITS 4
#elif defined(CONFIG_MACH_PH1_LD4) || defined(CONFIG_MACH_PH1_SLD8)
#define SG_PINSELBITS 8
#endif
#define SG_PINSEL_ADDR(n) (SG_PINCTRL((n) * (SG_PINSELBITS) / 32))
#define SG_PINSEL_MASK(n) (~(((1 << (SG_PINSELBITS)) - 1) << \
((n) * (SG_PINSELBITS) % 32)))
#define SG_PINSEL_MODE(n, mode) ((mode) << ((n) * (SG_PINSELBITS) % 32))
/* Only for PH1-Pro4 */
#define SG_LOADPINCTRL (SG_CTRL_BASE | 0x1700)
/* Input Enable */
#define SG_IECTRL (SG_CTRL_BASE | 0x1d00)
/* Pin Monitor */
#define SG_PINMON0 (SG_DBG_BASE | 0x0100)
#define SG_PINMON0_CLK_MODE_UPLLSRC_MASK (0x3 << 19)
#define SG_PINMON0_CLK_MODE_UPLLSRC_DEFAULT (0x0 << 19)
#define SG_PINMON0_CLK_MODE_UPLLSRC_VPLL27A (0x2 << 19)
#define SG_PINMON0_CLK_MODE_UPLLSRC_VPLL27B (0x3 << 19)
#define SG_PINMON0_CLK_MODE_AXOSEL_MASK (0x3 << 16)
#define SG_PINMON0_CLK_MODE_AXOSEL_24576KHZ (0x0 << 16)
#define SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ (0x1 << 16)
#define SG_PINMON0_CLK_MODE_AXOSEL_6144KHZ (0x2 << 16)
#define SG_PINMON0_CLK_MODE_AXOSEL_6250KHZ (0x3 << 16)
#define SG_PINMON0_CLK_MODE_AXOSEL_DEFAULT (0x0 << 16)
#define SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ_U (0x1 << 16)
#define SG_PINMON0_CLK_MODE_AXOSEL_20480KHZ (0x2 << 16)
#define SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ_A (0x3 << 16)
#ifdef __ASSEMBLY__
.macro set_pinsel, n, value, ra, rd
ldr \ra, =SG_PINSEL_ADDR(\n)
ldr \rd, [\ra]
and \rd, \rd, #SG_PINSEL_MASK(\n)
orr \rd, \rd, #SG_PINSEL_MODE(\n, \value)
str \rd, [\ra]
.endm
#else
#include <linux/types.h>
#include <asm/io.h>
static inline void sg_set_pinsel(int n, int value)
{
writel((readl(SG_PINSEL_ADDR(n)) & SG_PINSEL_MASK(n))
| SG_PINSEL_MODE(n, value), SG_PINSEL_ADDR(n));
}
static inline u32 sg_memconf_val_ch0(unsigned long size, int num)
{
int size_mb = (size >> 20) / num;
u32 ret;
switch (size_mb) {
case 64:
ret = SG_MEMCONF_CH0_SIZE_64MB;
break;
case 128:
ret = SG_MEMCONF_CH0_SIZE_128MB;
break;
case 256:
ret = SG_MEMCONF_CH0_SIZE_256MB;
break;
case 512:
ret = SG_MEMCONF_CH0_SIZE_512MB;
break;
case 1024:
ret = SG_MEMCONF_CH0_SIZE_1024MB;
break;
default:
BUG();
break;
}
switch (num) {
case 1:
ret |= SG_MEMCONF_CH0_NUM_1;
break;
case 2:
ret |= SG_MEMCONF_CH0_NUM_2;
break;
default:
BUG();
break;
}
return ret;
}
static inline u32 sg_memconf_val_ch1(unsigned long size, int num)
{
int size_mb = (size >> 20) / num;
u32 ret;
switch (size_mb) {
case 64:
ret = SG_MEMCONF_CH1_SIZE_64MB;
break;
case 128:
ret = SG_MEMCONF_CH1_SIZE_128MB;
break;
case 256:
ret = SG_MEMCONF_CH1_SIZE_256MB;
break;
case 512:
ret = SG_MEMCONF_CH1_SIZE_512MB;
break;
case 1024:
ret = SG_MEMCONF_CH1_SIZE_1024MB;
break;
default:
BUG();
break;
}
switch (num) {
case 1:
ret |= SG_MEMCONF_CH1_NUM_1;
break;
case 2:
ret |= SG_MEMCONF_CH1_NUM_2;
break;
default:
BUG();
break;
}
return ret;
}
#endif /* __ASSEMBLY__ */
#endif /* ARCH_SG_REGS_H */