diff options
author | Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2008-07-11 23:27:54 +0900 |
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committer | Ralf Baechle <ralf@linux-mips.org> | 2008-07-15 18:44:35 +0100 |
commit | edcaf1a6a77315562e9781245cc8e028c9a921dc (patch) | |
tree | a20a0a85071fa283c36db87a41d1a7e091a35781 /arch/mips/txx9/rbtx4927 | |
parent | 766891565bdaf605ea4aebe3e75de77e848254d0 (diff) | |
download | blackbird-op-linux-edcaf1a6a77315562e9781245cc8e028c9a921dc.tar.gz blackbird-op-linux-edcaf1a6a77315562e9781245cc8e028c9a921dc.zip |
[MIPS] TXx9: Make single kernel can support multiple boards
Make single kernel can be used on RBTX4927/37/38. Also make
some SoC-specific code independent from board-specific code.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/txx9/rbtx4927')
-rw-r--r-- | arch/mips/txx9/rbtx4927/irq.c | 57 | ||||
-rw-r--r-- | arch/mips/txx9/rbtx4927/prom.c | 52 | ||||
-rw-r--r-- | arch/mips/txx9/rbtx4927/setup.c | 78 |
3 files changed, 69 insertions, 118 deletions
diff --git a/arch/mips/txx9/rbtx4927/irq.c b/arch/mips/txx9/rbtx4927/irq.c index bef1447aeed2..70f13211bc2a 100644 --- a/arch/mips/txx9/rbtx4927/irq.c +++ b/arch/mips/txx9/rbtx4927/irq.c @@ -111,17 +111,10 @@ JP7 is not bus master -- do NOT use -- only 4 pci bus master's allowed -- SouthB #include <linux/types.h> #include <linux/interrupt.h> #include <asm/io.h> +#include <asm/mipsregs.h> +#include <asm/txx9/generic.h> #include <asm/txx9/rbtx4927.h> -#define TOSHIBA_RBTX4927_IRQ_IOC_RAW_BEG 0 -#define TOSHIBA_RBTX4927_IRQ_IOC_RAW_END 7 - -#define TOSHIBA_RBTX4927_IRQ_IOC_BEG ((TX4927_IRQ_PIC_END+1)+TOSHIBA_RBTX4927_IRQ_IOC_RAW_BEG) /* 56 */ -#define TOSHIBA_RBTX4927_IRQ_IOC_END ((TX4927_IRQ_PIC_END+1)+TOSHIBA_RBTX4927_IRQ_IOC_RAW_END) /* 63 */ - -#define TOSHIBA_RBTX4927_IRQ_NEST_IOC_ON_PIC TX4927_IRQ_NEST_EXT_ON_PIC -#define TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_IOC (TOSHIBA_RBTX4927_IRQ_IOC_BEG+2) - static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq); static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq); @@ -136,34 +129,25 @@ static struct irq_chip toshiba_rbtx4927_irq_ioc_type = { #define TOSHIBA_RBTX4927_IOC_INTR_ENAB (void __iomem *)0xbc002000UL #define TOSHIBA_RBTX4927_IOC_INTR_STAT (void __iomem *)0xbc002006UL -int toshiba_rbtx4927_irq_nested(int sw_irq) +static int toshiba_rbtx4927_irq_nested(int sw_irq) { u8 level3; level3 = readb(TOSHIBA_RBTX4927_IOC_INTR_STAT) & 0x1f; if (level3) - sw_irq = TOSHIBA_RBTX4927_IRQ_IOC_BEG + fls(level3) - 1; + sw_irq = RBTX4927_IRQ_IOC + fls(level3) - 1; return (sw_irq); } -static struct irqaction toshiba_rbtx4927_irq_ioc_action = { - .handler = no_action, - .flags = IRQF_SHARED, - .mask = CPU_MASK_NONE, - .name = TOSHIBA_RBTX4927_IOC_NAME -}; - static void __init toshiba_rbtx4927_irq_ioc_init(void) { int i; - for (i = TOSHIBA_RBTX4927_IRQ_IOC_BEG; - i <= TOSHIBA_RBTX4927_IRQ_IOC_END; i++) + for (i = RBTX4927_IRQ_IOC; + i < RBTX4927_IRQ_IOC + RBTX4927_NR_IRQ_IOC; i++) set_irq_chip_and_handler(i, &toshiba_rbtx4927_irq_ioc_type, handle_level_irq); - - setup_irq(TOSHIBA_RBTX4927_IRQ_NEST_IOC_ON_PIC, - &toshiba_rbtx4927_irq_ioc_action); + set_irq_chained_handler(RBTX4927_IRQ_IOCINT, handle_simple_irq); } static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq) @@ -171,7 +155,7 @@ static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq) unsigned char v; v = readb(TOSHIBA_RBTX4927_IOC_INTR_ENAB); - v |= (1 << (irq - TOSHIBA_RBTX4927_IRQ_IOC_BEG)); + v |= (1 << (irq - RBTX4927_IRQ_IOC)); writeb(v, TOSHIBA_RBTX4927_IOC_INTR_ENAB); } @@ -180,15 +164,34 @@ static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq) unsigned char v; v = readb(TOSHIBA_RBTX4927_IOC_INTR_ENAB); - v &= ~(1 << (irq - TOSHIBA_RBTX4927_IRQ_IOC_BEG)); + v &= ~(1 << (irq - RBTX4927_IRQ_IOC)); writeb(v, TOSHIBA_RBTX4927_IOC_INTR_ENAB); mmiowb(); } -void __init arch_init_irq(void) + +static int rbtx4927_irq_dispatch(int pending) { - extern void tx4927_irq_init(void); + int irq; + + if (pending & STATUSF_IP7) /* cpu timer */ + irq = MIPS_CPU_IRQ_BASE + 7; + else if (pending & STATUSF_IP2) { /* tx4927 pic */ + irq = txx9_irq(); + if (irq == RBTX4927_IRQ_IOCINT) + irq = toshiba_rbtx4927_irq_nested(irq); + } else if (pending & STATUSF_IP0) /* user line 0 */ + irq = MIPS_CPU_IRQ_BASE + 0; + else if (pending & STATUSF_IP1) /* user line 1 */ + irq = MIPS_CPU_IRQ_BASE + 1; + else + irq = -1; + return irq; +} +void __init rbtx4927_irq_setup(void) +{ + txx9_irq_dispatch = rbtx4927_irq_dispatch; tx4927_irq_init(); toshiba_rbtx4927_irq_ioc_init(); /* Onboard 10M Ether: High Active */ diff --git a/arch/mips/txx9/rbtx4927/prom.c b/arch/mips/txx9/rbtx4927/prom.c index 0020bbee838b..942e627d2dc1 100644 --- a/arch/mips/txx9/rbtx4927/prom.c +++ b/arch/mips/txx9/rbtx4927/prom.c @@ -30,62 +30,16 @@ * 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/init.h> -#include <linux/string.h> #include <asm/bootinfo.h> -#include <asm/cpu.h> -#include <asm/mipsregs.h> -#include <asm/txx9/tx4927.h> +#include <asm/txx9/generic.h> +#include <asm/txx9/rbtx4927.h> -void __init prom_init_cmdline(void) -{ - int argc = (int) fw_arg0; - char **argv = (char **) fw_arg1; - int i; /* Always ignore the "-c" at argv[0] */ - - /* ignore all built-in args if any f/w args given */ - if (argc > 1) { - *arcs_cmdline = '\0'; - } - - for (i = 1; i < argc; i++) { - if (i != 1) { - strcat(arcs_cmdline, " "); - } - strcat(arcs_cmdline, argv[i]); - } -} - -void __init prom_init(void) +void __init rbtx4927_prom_init(void) { extern int tx4927_get_mem_size(void); - extern char* toshiba_name; int msize; prom_init_cmdline(); - - if ((read_c0_prid() & 0xff) == PRID_REV_TX4927) { - mips_machtype = MACH_TOSHIBA_RBTX4927; - toshiba_name = "TX4927"; - } else { - mips_machtype = MACH_TOSHIBA_RBTX4937; - toshiba_name = "TX4937"; - } - msize = tx4927_get_mem_size(); add_memory_region(0, msize << 20, BOOT_MEM_RAM); } - -void __init prom_free_prom_memory(void) -{ -} - -const char *get_system_type(void) -{ - return "Toshiba RBTX4927/RBTX4937"; -} - -char * __init prom_getcmdline(void) -{ - return &(arcs_cmdline[0]); -} - diff --git a/arch/mips/txx9/rbtx4927/setup.c b/arch/mips/txx9/rbtx4927/setup.c index 86b870abc319..c3566c39c26c 100644 --- a/arch/mips/txx9/rbtx4927/setup.c +++ b/arch/mips/txx9/rbtx4927/setup.c @@ -49,7 +49,6 @@ #include <linux/interrupt.h> #include <linux/pm.h> #include <linux/platform_device.h> -#include <linux/clk.h> #include <linux/delay.h> #include <asm/bootinfo.h> @@ -76,8 +75,6 @@ char *prom_getcmdline(void); static int tx4927_ccfg_toeon = 1; -char *toshiba_name = ""; - #ifdef CONFIG_PCI static void __init tx4927_pci_setup(void) { @@ -171,15 +168,15 @@ static void __init tx4937_pci_setup(void) } } -static int __init rbtx4927_arch_init(void) +static void __init rbtx4927_arch_init(void) { if (mips_machtype == MACH_TOSHIBA_RBTX4937) tx4937_pci_setup(); else tx4927_pci_setup(); - return 0; } -arch_initcall(rbtx4927_arch_init); +#else +#define rbtx4927_arch_init NULL #endif /* CONFIG_PCI */ static void __noreturn wait_forever(void) @@ -223,14 +220,12 @@ void toshiba_rbtx4927_power_off(void) /* no return */ } -void __init plat_mem_setup(void) +static void __init rbtx4927_mem_setup(void) { int i; u32 cp0_config; char *argptr; - printk("CPU is %s\n", toshiba_name); - /* f/w leaves this on at startup */ clear_c0_status(ST0_ERL); @@ -323,7 +318,7 @@ void __init plat_mem_setup(void) req.iotype = UPIO_MEM; req.membase = (char *)(0xff1ff300 + i * 0x100); req.mapbase = 0xff1ff300 + i * 0x100; - req.irq = TX4927_IRQ_PIC_BEG + 8 + i; + req.irq = TXX9_IRQ_BASE + TX4927_IR_SIO(i); req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/; req.uartclk = 50000000; early_serial_txx9_setup(&req); @@ -352,7 +347,7 @@ void __init plat_mem_setup(void) #endif } -void __init plat_time_init(void) +static void __init rbtx4927_time_init(void) { mips_hpt_frequency = txx9_cpu_clock / 2; if (____raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_TINTDIS) @@ -372,7 +367,6 @@ static int __init toshiba_rbtx4927_rtc_init(void) platform_device_register_simple("rtc-ds1742", -1, &res, 1); return IS_ERR(dev) ? PTR_ERR(dev) : 0; } -device_initcall(toshiba_rbtx4927_rtc_init); static int __init rbtx4927_ne_init(void) { @@ -391,7 +385,6 @@ static int __init rbtx4927_ne_init(void) res, ARRAY_SIZE(res)); return IS_ERR(dev) ? PTR_ERR(dev) : 0; } -device_initcall(rbtx4927_ne_init); /* Watchdog support */ @@ -411,36 +404,37 @@ static int __init rbtx4927_wdt_init(void) { return txx9_wdt_init(TX4927_TMR_REG(2) & 0xfffffffffULL); } -device_initcall(rbtx4927_wdt_init); - -/* Minimum CLK support */ - -struct clk *clk_get(struct device *dev, const char *id) -{ - if (!strcmp(id, "imbus_clk")) - return (struct clk *)50000000; - return ERR_PTR(-ENOENT); -} -EXPORT_SYMBOL(clk_get); - -int clk_enable(struct clk *clk) -{ - return 0; -} -EXPORT_SYMBOL(clk_enable); -void clk_disable(struct clk *clk) +static void __init rbtx4927_device_init(void) { + toshiba_rbtx4927_rtc_init(); + rbtx4927_ne_init(); + rbtx4927_wdt_init(); } -EXPORT_SYMBOL(clk_disable); -unsigned long clk_get_rate(struct clk *clk) -{ - return (unsigned long)clk; -} -EXPORT_SYMBOL(clk_get_rate); - -void clk_put(struct clk *clk) -{ -} -EXPORT_SYMBOL(clk_put); +struct txx9_board_vec rbtx4927_vec __initdata = { + .type = MACH_TOSHIBA_RBTX4927, + .system = "Toshiba RBTX4927", + .prom_init = rbtx4927_prom_init, + .mem_setup = rbtx4927_mem_setup, + .irq_setup = rbtx4927_irq_setup, + .time_init = rbtx4927_time_init, + .device_init = rbtx4927_device_init, + .arch_init = rbtx4927_arch_init, +#ifdef CONFIG_PCI + .pci_map_irq = rbtx4927_pci_map_irq, +#endif +}; +struct txx9_board_vec rbtx4937_vec __initdata = { + .type = MACH_TOSHIBA_RBTX4937, + .system = "Toshiba RBTX4937", + .prom_init = rbtx4927_prom_init, + .mem_setup = rbtx4927_mem_setup, + .irq_setup = rbtx4927_irq_setup, + .time_init = rbtx4927_time_init, + .device_init = rbtx4927_device_init, + .arch_init = rbtx4927_arch_init, +#ifdef CONFIG_PCI + .pci_map_irq = rbtx4927_pci_map_irq, +#endif +}; |