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2d5d1c9e29
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>
193 lines
4.7 KiB
C
193 lines
4.7 KiB
C
/*
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* UniPhier SG (SoC Glue) block registers
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*
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* Copyright (C) 2011-2014 Panasonic Corporation
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef ARCH_SG_REGS_H
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#define ARCH_SG_REGS_H
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/* Base Address */
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#define SG_CTRL_BASE 0x5f800000
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#define SG_DBG_BASE 0x5f900000
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/* Revision */
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#define SG_REVISION (SG_CTRL_BASE | 0x0000)
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#define SG_REVISION_TYPE_SHIFT 16
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#define SG_REVISION_TYPE_MASK (0xff << SG_REVISION_TYPE_SHIFT)
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#define SG_REVISION_MODEL_SHIFT 8
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#define SG_REVISION_MODEL_MASK (0x3 << SG_REVISION_MODEL_SHIFT)
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#define SG_REVISION_REV_SHIFT 0
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#define SG_REVISION_REV_MASK (0x1f << SG_REVISION_REV_SHIFT)
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/* Memory Configuration */
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#define SG_MEMCONF (SG_CTRL_BASE | 0x0400)
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#define SG_MEMCONF_CH0_SIZE_64MB ((0x0 << 10) | (0x01 << 0))
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#define SG_MEMCONF_CH0_SIZE_128MB ((0x0 << 10) | (0x02 << 0))
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#define SG_MEMCONF_CH0_SIZE_256MB ((0x0 << 10) | (0x03 << 0))
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#define SG_MEMCONF_CH0_SIZE_512MB ((0x1 << 10) | (0x00 << 0))
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#define SG_MEMCONF_CH0_SIZE_1024MB ((0x1 << 10) | (0x01 << 0))
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#define SG_MEMCONF_CH0_NUM_1 (0x1 << 8)
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#define SG_MEMCONF_CH0_NUM_2 (0x0 << 8)
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#define SG_MEMCONF_CH1_SIZE_64MB ((0x0 << 11) | (0x01 << 2))
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#define SG_MEMCONF_CH1_SIZE_128MB ((0x0 << 11) | (0x02 << 2))
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#define SG_MEMCONF_CH1_SIZE_256MB ((0x0 << 11) | (0x03 << 2))
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#define SG_MEMCONF_CH1_SIZE_512MB ((0x1 << 11) | (0x00 << 2))
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#define SG_MEMCONF_CH1_SIZE_1024MB ((0x1 << 11) | (0x01 << 2))
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#define SG_MEMCONF_CH1_NUM_1 (0x1 << 9)
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#define SG_MEMCONF_CH1_NUM_2 (0x0 << 9)
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#define SG_MEMCONF_SPARSEMEM (0x1 << 4)
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/* Pin Control */
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#define SG_PINCTRL_BASE (SG_CTRL_BASE | 0x1000)
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#if defined(CONFIG_MACH_PH1_PRO4)
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# define SG_PINCTRL(n) (SG_PINCTRL_BASE + (n) * 8)
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#elif defined(CONFIG_MACH_PH1_LD4) || defined(CONFIG_MACH_PH1_SLD8)
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# define SG_PINCTRL(n) (SG_PINCTRL_BASE + (n) * 4)
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#endif
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#if defined(CONFIG_MACH_PH1_PRO4)
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#define SG_PINSELBITS 4
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#elif defined(CONFIG_MACH_PH1_LD4) || defined(CONFIG_MACH_PH1_SLD8)
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#define SG_PINSELBITS 8
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#endif
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#define SG_PINSEL_ADDR(n) (SG_PINCTRL((n) * (SG_PINSELBITS) / 32))
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#define SG_PINSEL_MASK(n) (~(((1 << (SG_PINSELBITS)) - 1) << \
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((n) * (SG_PINSELBITS) % 32)))
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#define SG_PINSEL_MODE(n, mode) ((mode) << ((n) * (SG_PINSELBITS) % 32))
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/* Only for PH1-Pro4 */
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#define SG_LOADPINCTRL (SG_CTRL_BASE | 0x1700)
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/* Input Enable */
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#define SG_IECTRL (SG_CTRL_BASE | 0x1d00)
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/* Pin Monitor */
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#define SG_PINMON0 (SG_DBG_BASE | 0x0100)
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#define SG_PINMON0_CLK_MODE_UPLLSRC_MASK (0x3 << 19)
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#define SG_PINMON0_CLK_MODE_UPLLSRC_DEFAULT (0x0 << 19)
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#define SG_PINMON0_CLK_MODE_UPLLSRC_VPLL27A (0x2 << 19)
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#define SG_PINMON0_CLK_MODE_UPLLSRC_VPLL27B (0x3 << 19)
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#define SG_PINMON0_CLK_MODE_AXOSEL_MASK (0x3 << 16)
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#define SG_PINMON0_CLK_MODE_AXOSEL_24576KHZ (0x0 << 16)
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#define SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ (0x1 << 16)
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#define SG_PINMON0_CLK_MODE_AXOSEL_6144KHZ (0x2 << 16)
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#define SG_PINMON0_CLK_MODE_AXOSEL_6250KHZ (0x3 << 16)
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#define SG_PINMON0_CLK_MODE_AXOSEL_DEFAULT (0x0 << 16)
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#define SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ_U (0x1 << 16)
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#define SG_PINMON0_CLK_MODE_AXOSEL_20480KHZ (0x2 << 16)
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#define SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ_A (0x3 << 16)
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#ifdef __ASSEMBLY__
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.macro set_pinsel, n, value, ra, rd
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ldr \ra, =SG_PINSEL_ADDR(\n)
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ldr \rd, [\ra]
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and \rd, \rd, #SG_PINSEL_MASK(\n)
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orr \rd, \rd, #SG_PINSEL_MODE(\n, \value)
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str \rd, [\ra]
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.endm
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#else
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#include <linux/types.h>
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#include <asm/io.h>
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static inline void sg_set_pinsel(int n, int value)
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{
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writel((readl(SG_PINSEL_ADDR(n)) & SG_PINSEL_MASK(n))
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| SG_PINSEL_MODE(n, value), SG_PINSEL_ADDR(n));
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}
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static inline u32 sg_memconf_val_ch0(unsigned long size, int num)
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{
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int size_mb = (size >> 20) / num;
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u32 ret;
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switch (size_mb) {
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case 64:
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ret = SG_MEMCONF_CH0_SIZE_64MB;
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break;
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case 128:
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ret = SG_MEMCONF_CH0_SIZE_128MB;
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break;
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case 256:
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ret = SG_MEMCONF_CH0_SIZE_256MB;
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break;
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case 512:
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ret = SG_MEMCONF_CH0_SIZE_512MB;
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break;
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case 1024:
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ret = SG_MEMCONF_CH0_SIZE_1024MB;
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break;
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default:
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BUG();
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break;
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}
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switch (num) {
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case 1:
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ret |= SG_MEMCONF_CH0_NUM_1;
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break;
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case 2:
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ret |= SG_MEMCONF_CH0_NUM_2;
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break;
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default:
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BUG();
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break;
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}
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return ret;
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}
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static inline u32 sg_memconf_val_ch1(unsigned long size, int num)
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{
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int size_mb = (size >> 20) / num;
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u32 ret;
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switch (size_mb) {
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case 64:
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ret = SG_MEMCONF_CH1_SIZE_64MB;
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break;
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case 128:
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ret = SG_MEMCONF_CH1_SIZE_128MB;
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break;
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case 256:
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ret = SG_MEMCONF_CH1_SIZE_256MB;
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break;
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case 512:
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ret = SG_MEMCONF_CH1_SIZE_512MB;
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break;
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case 1024:
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ret = SG_MEMCONF_CH1_SIZE_1024MB;
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break;
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default:
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BUG();
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break;
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}
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switch (num) {
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case 1:
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ret |= SG_MEMCONF_CH1_NUM_1;
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break;
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case 2:
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ret |= SG_MEMCONF_CH1_NUM_2;
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break;
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default:
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BUG();
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break;
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}
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return ret;
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}
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#endif /* __ASSEMBLY__ */
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#endif /* ARCH_SG_REGS_H */
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