sh: SH-MobileR SH7722 CPU support.

This adds CPU support for the SH7722.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2006-12-11 20:28:03 +09:00
parent 5432143464
commit 41504c3972
22 changed files with 284 additions and 20 deletions

View File

@ -6,6 +6,7 @@ obj-$(CONFIG_CPU_SH2) = sh2/
obj-$(CONFIG_CPU_SH2A) = sh2a/
obj-$(CONFIG_CPU_SH3) = sh3/
obj-$(CONFIG_CPU_SH4) = sh4/
obj-$(CONFIG_CPU_SH4A) += sh4a/
obj-$(CONFIG_UBC_WAKEUP) += ubc.o
obj-$(CONFIG_SH_ADC) += adc.o

View File

@ -12,17 +12,12 @@ obj-$(CONFIG_SH_STORE_QUEUES) += sq.o
obj-$(CONFIG_CPU_SUBTYPE_SH7750) += setup-sh7750.o
obj-$(CONFIG_CPU_SUBTYPE_SH7751) += setup-sh7750.o
obj-$(CONFIG_CPU_SUBTYPE_SH7760) += setup-sh7760.o
obj-$(CONFIG_CPU_SUBTYPE_SH7770) += setup-sh7770.o
obj-$(CONFIG_CPU_SUBTYPE_SH7780) += setup-sh7780.o
obj-$(CONFIG_CPU_SUBTYPE_SH73180) += setup-sh73180.o
obj-$(CONFIG_CPU_SUBTYPE_SH7343) += setup-sh7343.o
obj-$(CONFIG_CPU_SUBTYPE_SH4_202) += setup-sh4-202.o
# Primary on-chip clocks (common)
ifndef CONFIG_CPU_SH4A
clock-$(CONFIG_CPU_SH4) := clock-sh4.o
clock-$(CONFIG_CPU_SUBTYPE_SH73180) := clock-sh73180.o
clock-$(CONFIG_CPU_SUBTYPE_SH7770) := clock-sh7770.o
clock-$(CONFIG_CPU_SUBTYPE_SH7780) := clock-sh7780.o
endif
# Additional clocks by subtype
clock-$(CONFIG_CPU_SUBTYPE_SH4_202) += clock-sh4-202.o

View File

@ -119,11 +119,20 @@ int __init detect_cpu_and_cache_system(void)
break;
case 0x3000:
case 0x3003:
case 0x3009:
cpu_data->type = CPU_SH7343;
cpu_data->icache.ways = 4;
cpu_data->dcache.ways = 4;
cpu_data->flags |= CPU_HAS_LLSC;
break;
case 0x3008:
if (prr == 0xa0) {
cpu_data->type = CPU_SH7722;
cpu_data->icache.ways = 4;
cpu_data->dcache.ways = 4;
cpu_data->flags |= CPU_HAS_LLSC;
}
break;
case 0x8000:
cpu_data->type = CPU_ST40RA;
cpu_data->flags |= CPU_HAS_FPU;

View File

@ -0,0 +1,19 @@
#
# Makefile for the Linux/SuperH SH-4 backends.
#
# CPU subtype setup
obj-$(CONFIG_CPU_SUBTYPE_SH7770) += setup-sh7770.o
obj-$(CONFIG_CPU_SUBTYPE_SH7780) += setup-sh7780.o
obj-$(CONFIG_CPU_SUBTYPE_SH73180) += setup-sh73180.o
obj-$(CONFIG_CPU_SUBTYPE_SH7343) += setup-sh7343.o
obj-$(CONFIG_CPU_SUBTYPE_SH7722) += setup-sh7722.o
# Primary on-chip clocks (common)
clock-$(CONFIG_CPU_SUBTYPE_SH73180) := clock-sh73180.o
clock-$(CONFIG_CPU_SUBTYPE_SH7770) := clock-sh7770.o
clock-$(CONFIG_CPU_SUBTYPE_SH7780) := clock-sh7780.o
clock-$(CONFIG_CPU_SUBTYPE_SH7343) := clock-sh7343.o
clock-$(CONFIG_CPU_SUBTYPE_SH7722) := clock-sh7343.o
obj-y += $(clock-y)

View File

@ -0,0 +1,99 @@
/*
* arch/sh/kernel/cpu/sh4/clock-sh7343.c
*
* SH7343/SH7722 support for the clock framework
*
* Copyright (C) 2006 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/io.h>
#include <asm/clock.h>
#include <asm/freq.h>
/*
* SH7343/SH7722 uses a common set of multipliers and divisors, so this
* is quite simple..
*/
static int multipliers[] = { 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
static int divisors[] = { 1, 3, 2, 5, 3, 4, 5, 6, 8, 10, 12, 16, 20 };
#define pll_calc() (((ctrl_inl(FRQCR) >> 24) & 0x1f) + 1)
static void master_clk_init(struct clk *clk)
{
clk->parent = clk_get(NULL, "cpu_clk");
}
static void master_clk_recalc(struct clk *clk)
{
int idx = (ctrl_inl(FRQCR) & 0x000f);
clk->rate *= clk->parent->rate * multipliers[idx] / divisors[idx];
}
static struct clk_ops sh7343_master_clk_ops = {
.init = master_clk_init,
.recalc = master_clk_recalc,
};
static void module_clk_init(struct clk *clk)
{
clk->parent = NULL;
clk->rate = CONFIG_SH_PCLK_FREQ;
}
static struct clk_ops sh7343_module_clk_ops = {
.init = module_clk_init,
};
static void bus_clk_init(struct clk *clk)
{
clk->parent = clk_get(NULL, "cpu_clk");
}
static void bus_clk_recalc(struct clk *clk)
{
int idx = (ctrl_inl(FRQCR) >> 8) & 0x000f;
clk->rate = clk->parent->rate * multipliers[idx] / divisors[idx];
}
static struct clk_ops sh7343_bus_clk_ops = {
.init = bus_clk_init,
.recalc = bus_clk_recalc,
};
static void cpu_clk_init(struct clk *clk)
{
clk->parent = clk_get(NULL, "module_clk");
clk->flags |= CLK_RATE_PROPAGATES;
clk_set_rate(clk, clk_get_rate(clk));
}
static void cpu_clk_recalc(struct clk *clk)
{
int idx = (ctrl_inl(FRQCR) >> 20) & 0x000f;
clk->rate = clk->parent->rate * pll_calc() *
multipliers[idx] / divisors[idx];
}
static struct clk_ops sh7343_cpu_clk_ops = {
.init = cpu_clk_init,
.recalc = cpu_clk_recalc,
};
static struct clk_ops *sh7343_clk_ops[] = {
&sh7343_master_clk_ops,
&sh7343_module_clk_ops,
&sh7343_bus_clk_ops,
&sh7343_cpu_clk_ops,
};
void __init arch_init_clk_ops(struct clk_ops **ops, int idx)
{
if (idx < ARRAY_SIZE(sh7343_clk_ops))
*ops = sh7343_clk_ops[idx];
}

View File

@ -0,0 +1,76 @@
/*
* SH7722 Setup
*
* Copyright (C) 2006 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/platform_device.h>
#include <linux/init.h>
#include <linux/serial.h>
#include <asm/sci.h>
static struct plat_sci_port sci_platform_data[] = {
{
.mapbase = 0xffe00000,
.flags = UPF_BOOT_AUTOCONF,
.type = PORT_SCIF,
.irqs = { 80, 81, 83, 82 },
}, {
.flags = 0,
}
};
static struct platform_device sci_device = {
.name = "sh-sci",
.id = -1,
.dev = {
.platform_data = sci_platform_data,
},
};
static struct platform_device *sh7722_devices[] __initdata = {
&sci_device,
};
static int __init sh7722_devices_setup(void)
{
return platform_add_devices(sh7722_devices,
ARRAY_SIZE(sh7722_devices));
}
__initcall(sh7722_devices_setup);
static struct ipr_data sh7722_ipr_map[] = {
/* IRQ, IPR-idx, shift, prio */
{ 16, 0, 12, 2 }, /* TMU0 */
{ 17, 0, 8, 2 }, /* TMU1 */
};
static unsigned long ipr_offsets[] = {
0xa4080000, /* 0: IPRA */
0xa4080004, /* 1: IPRB */
0xa4080008, /* 2: IPRC */
0xa408000c, /* 3: IPRD */
0xa4080010, /* 4: IPRE */
0xa4080014, /* 5: IPRF */
0xa4080018, /* 6: IPRG */
0xa408001c, /* 7: IPRH */
0xa4080020, /* 8: IPRI */
0xa4080024, /* 9: IPRJ */
0xa4080028, /* 10: IPRK */
0xa408002c, /* 11: IPRL */
};
unsigned int map_ipridx_to_addr(int idx)
{
if (unlikely(idx >= ARRAY_SIZE(ipr_offsets)))
return 0;
return ipr_offsets[idx];
}
void __init init_IRQ_ipr(void)
{
make_ipr_irq(sh7722_ipr_map, ARRAY_SIZE(sh7722_ipr_map));
}

View File

@ -325,14 +325,18 @@ void __init setup_arch(char **cmdline_p)
ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0);
if (&__rd_start != &__rd_end) {
LOADER_TYPE = 1;
INITRD_START = PHYSADDR((unsigned long)&__rd_start) - __MEMORY_START;
INITRD_SIZE = (unsigned long)&__rd_end - (unsigned long)&__rd_start;
INITRD_START = PHYSADDR((unsigned long)&__rd_start) -
__MEMORY_START;
INITRD_SIZE = (unsigned long)&__rd_end -
(unsigned long)&__rd_start;
}
if (LOADER_TYPE && INITRD_START) {
if (INITRD_START + INITRD_SIZE <= (max_low_pfn << PAGE_SHIFT)) {
reserve_bootmem_node(NODE_DATA(0), INITRD_START+__MEMORY_START, INITRD_SIZE);
initrd_start = INITRD_START + PAGE_OFFSET + __MEMORY_START;
reserve_bootmem_node(NODE_DATA(0), INITRD_START +
__MEMORY_START, INITRD_SIZE);
initrd_start = INITRD_START + PAGE_OFFSET +
__MEMORY_START;
initrd_end = initrd_start + INITRD_SIZE;
} else {
printk("initrd extends beyond end of memory "
@ -404,7 +408,7 @@ static const char *cpu_name[] = {
[CPU_SH4_202] = "SH4-202", [CPU_SH4_501] = "SH4-501",
[CPU_SH7770] = "SH7770", [CPU_SH7780] = "SH7780",
[CPU_SH7781] = "SH7781", [CPU_SH7343] = "SH7343",
[CPU_SH7785] = "SH7785",
[CPU_SH7785] = "SH7785", [CPU_SH7722] = "SH7722",
[CPU_SH_NONE] = "Unknown"
};

View File

@ -35,6 +35,9 @@ config CPU_SUBTYPE_ST40
select CPU_SH4
select CPU_HAS_INTC2_IRQ
config CPU_SHX2
bool
#
# Processor subtypes
#
@ -180,6 +183,7 @@ config CPU_SUBTYPE_SH7780
config CPU_SUBTYPE_SH7785
bool "Support SH7785 processor"
select CPU_SH4A
select CPU_SHX2
select CPU_HAS_INTC2_IRQ
comment "SH4AL-DSP Processor Support"
@ -192,6 +196,12 @@ config CPU_SUBTYPE_SH7343
bool "Support SH7343 processor"
select CPU_SH4AL_DSP
config CPU_SUBTYPE_SH7722
bool "Support SH7722 processor"
select CPU_SH4AL_DSP
select CPU_SHX2
select CPU_HAS_IPR_IRQ
endmenu
menu "Memory management options"
@ -250,7 +260,7 @@ config 32BIT
config X2TLB
bool "Enable extended TLB mode"
depends on CPU_SUBTYPE_SH7785 && MMU && EXPERIMENTAL
depends on CPU_SHX2 && MMU && EXPERIMENTAL
help
Selecting this option will enable the extended mode of the SH-X2
TLB. For legacy SH-X behaviour and interoperability, say N. For

View File

@ -319,6 +319,28 @@ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
sci_out(port, SCFCR, fcr_val);
}
#elif defined(CONFIG_CPU_SUBTYPE_SH7722)
static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
{
unsigned int fcr_val = 0;
if (cflag & CRTSCTS) {
fcr_val |= SCFCR_MCE;
ctrl_outw(0x0000, PORT_PSCR);
} else {
unsigned short data;
data = ctrl_inw(PORT_PSCR);
data &= 0x033f;
data |= 0x0400;
ctrl_outw(data, PORT_PSCR);
ctrl_outw(ctrl_inw(SCSPTR0) & 0x17, SCSPTR0);
}
sci_out(port, SCFCR, fcr_val);
}
#else
/* For SH7750 */
static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)

View File

@ -90,6 +90,13 @@
# define SCSPTR3 0xffe30010 /* 16 bit SCIF */
# define SCSCR_INIT(port) 0x32 /* TIE=0,RIE=0,TE=1,RE=1,REIE=0,CKE=1 */
# define SCIF_ONLY
#elif defined(CONFIG_CPU_SUBTYPE_SH7722)
# define SCPDR0 0xA405013E /* 16 bit SCIF0 PSDR */
# define SCSPTR0 SCPDR0
# define SCIF_ORER 0x0001 /* overrun error bit */
# define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
# define SCIF_ONLY
# define PORT_PSCR 0xA405011E
#elif defined(CONFIG_CPU_SUBTYPE_SH4_202)
# define SCSPTR2 0xffe80020 /* 16 bit SCIF */
# define SCIF_ORER 0x0001 /* overrun error bit */
@ -522,6 +529,13 @@ static inline int sci_rxd_in(struct uart_port *port)
return ctrl_inw(SCSPTR3) & 0x0001 ? 1 : 0; /* SCIF */
return 1;
}
#elif defined(CONFIG_CPU_SUBTYPE_SH7722)
static inline int sci_rxd_in(struct uart_port *port)
{
if (port->mapbase == 0xffe00000)
return ctrl_inb(SCPDR0) & 0x0001 ? 1 : 0; /* SCIF0 */
return 1;
}
#elif defined(CONFIG_CPU_SUBTYPE_ST40STB1)
static inline int sci_rxd_in(struct uart_port *port)
{

View File

@ -16,9 +16,8 @@
static void __init check_bugs(void)
{
extern char *get_cpu_subtype(void);
extern unsigned long loops_per_jiffy;
char *p= &init_utsname()->machine[2]; /* "sh" */
char *p = &init_utsname()->machine[2]; /* "sh" */
cpu_data->loops_per_jiffy = loops_per_jiffy;
@ -40,6 +39,15 @@ static void __init check_bugs(void)
*p++ = '4';
*p++ = 'a';
break;
case CPU_SH73180 ... CPU_SH7722:
*p++ = '4';
*p++ = 'a';
*p++ = 'l';
*p++ = '-';
*p++ = 'd';
*p++ = 's';
*p++ = 'p';
break;
default:
*p++ = '?';
*p++ = '!';

View File

@ -22,7 +22,7 @@
#define CCR_CACHE_ICE 0x0100 /* Instruction Cache Enable */
#define CCR_CACHE_ICI 0x0800 /* IC Invalidate */
#define CCR_CACHE_IIX 0x8000 /* IC Index Enable */
#ifndef CONFIG_CPU_SUBTYPE_SH7780
#ifndef CONFIG_CPU_SH4A
#define CCR_CACHE_EMODE 0x80000000 /* EMODE Enable */
#endif

View File

@ -10,7 +10,7 @@
#ifndef __ASM_CPU_SH4_FREQ_H
#define __ASM_CPU_SH4_FREQ_H
#if defined(CONFIG_CPU_SUBTYPE_SH73180)
#if defined(CONFIG_CPU_SUBTYPE_SH73180) || defined(CONFIG_CPU_SUBTYPE_SH7722)
#define FRQCR 0xa4150000
#elif defined(CONFIG_CPU_SUBTYPE_SH7780)
#define FRQCR 0xffc80000

View File

@ -37,7 +37,8 @@
# define ONCHIP_NR_IRQS 144
#elif defined(CONFIG_CPU_SUBTYPE_SH7300) || \
defined(CONFIG_CPU_SUBTYPE_SH73180) || \
defined(CONFIG_CPU_SUBTYPE_SH7343)
defined(CONFIG_CPU_SUBTYPE_SH7343) || \
defined(CONFIG_CPU_SUBTYPE_SH7722)
# define ONCHIP_NR_IRQS 109
#elif defined(CONFIG_CPU_SUBTYPE_SH7780)
# define ONCHIP_NR_IRQS 111
@ -79,6 +80,8 @@
# define OFFCHIP_NR_IRQS 16
#elif defined(CONFIG_SH_7343_SOLUTION_ENGINE)
# define OFFCHIP_NR_IRQS 12
#elif defined(CONFIG_SH_7722_SOLUTION_ENGINE)
# define OFFCHIP_NR_IRQS 14
#elif defined(CONFIG_SH_UNKNOWN)
# define OFFCHIP_NR_IRQS 16 /* Must also be last */
#else

View File

@ -27,6 +27,8 @@
#define CCN_CVR 0xff000040
#define CCN_PRR 0xff000044
const char *get_cpu_subtype(void);
/*
* CPU type and hardware bug flags. Kept separately for each CPU.
*
@ -52,8 +54,10 @@ enum cpu_type {
CPU_SH7760, CPU_ST40RA, CPU_ST40GX1, CPU_SH4_202, CPU_SH4_501,
/* SH-4A types */
CPU_SH73180, CPU_SH7343, CPU_SH7770, CPU_SH7780, CPU_SH7781,
CPU_SH7785,
CPU_SH7770, CPU_SH7780, CPU_SH7781, CPU_SH7785,
/* SH4AL-DSP types */
CPU_SH73180, CPU_SH7343, CPU_SH7722,
/* Unknown subtype */
CPU_SH_NONE