From 897cfcd878ccc9c2b0f1b3bb00a2368c43feafc0 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Mon, 10 Sep 2007 12:06:03 +0900 Subject: sh: intc - rework higlander irq code for r7780mp and r7785rp This patch reworks the highlander irq code for r7780mp and r7785rp. The same strategy as for the new R2D code is used here - the board specific interrupts are now starting from HL_FPGA_IRQ_BASE. The code for r7780rp is not touched due to lack of hardware. Tested with CF, AX88796 on r7780mp and r7785rp. The touch switch interrupt has also been tested on r7780mp. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt --- arch/sh/boards/renesas/r7780rp/Makefile | 5 ++- arch/sh/boards/renesas/r7780rp/irq-r7780mp.c | 61 ++++++++++++++++++++++++++++ arch/sh/boards/renesas/r7780rp/irq-r7780rp.c | 5 ++- arch/sh/boards/renesas/r7780rp/irq-r7785rp.c | 46 ++++++++++++++++++--- arch/sh/boards/renesas/r7780rp/setup.c | 54 +++++++++++++++++++----- 5 files changed, 152 insertions(+), 19 deletions(-) create mode 100644 arch/sh/boards/renesas/r7780rp/irq-r7780mp.c (limited to 'arch/sh') diff --git a/arch/sh/boards/renesas/r7780rp/Makefile b/arch/sh/boards/renesas/r7780rp/Makefile index b1d20afb4eb3..dd26182fbf58 100644 --- a/arch/sh/boards/renesas/r7780rp/Makefile +++ b/arch/sh/boards/renesas/r7780rp/Makefile @@ -1,9 +1,10 @@ # # Makefile for the R7780RP-1 specific parts of the kernel # -irqinit-y := irq-r7780rp.o +irqinit-$(CONFIG_SH_R7780MP) := irq-r7780mp.o irqinit-$(CONFIG_SH_R7785RP) := irq-r7785rp.o -obj-y := setup.o irq.o $(irqinit-y) +irqinit-$(CONFIG_SH_R7780RP) := irq-r7780rp.o irq.o +obj-y := setup.o $(irqinit-y) ifneq ($(CONFIG_SH_R7785RP),y) obj-$(CONFIG_PUSH_SWITCH) += psw.o diff --git a/arch/sh/boards/renesas/r7780rp/irq-r7780mp.c b/arch/sh/boards/renesas/r7780rp/irq-r7780mp.c new file mode 100644 index 000000000000..59b47fe061f9 --- /dev/null +++ b/arch/sh/boards/renesas/r7780rp/irq-r7780mp.c @@ -0,0 +1,61 @@ +/* + * Renesas Solutions Highlander R7780MP Support. + * + * Copyright (C) 2002 Atom Create Engineering Co., Ltd. + * Copyright (C) 2006 Paul Mundt + * Copyright (C) 2007 Magnus Damm + * + * 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 +#include +#include +#include + +enum { + UNUSED = 0, + + /* board specific interrupt sources */ + AX88796, /* Ethernet controller */ + CF, /* Compact Flash */ + PSW, /* Push Switch */ + EXT1, /* EXT1n IRQ */ + EXT4, /* EXT4n IRQ */ +}; + +static struct intc_vect vectors[] __initdata = { + INTC_IRQ(CF, IRQ_CF), + INTC_IRQ(PSW, IRQ_PSW), + INTC_IRQ(AX88796, IRQ_AX88796), + INTC_IRQ(EXT1, IRQ_EXT1), + INTC_IRQ(EXT4, IRQ_EXT4), +}; + +static struct intc_mask_reg mask_registers[] __initdata = { + { 0xa4000000, 0, 16, /* IRLMSK */ + { 0, 0, 0, 0, CF, 0, 0, 0, + 0, 0, 0, EXT4, 0, EXT1, PSW, AX88796 } }, +}; + +static unsigned char irl2irq[HL_NR_IRL] __initdata = { + 0, IRQ_CF, 0, 0, + 0, 0, 0, 0, + 0, IRQ_EXT4, 0, IRQ_EXT1, + 0, IRQ_AX88796, IRQ_PSW, +}; + +static DECLARE_INTC_DESC(intc_desc, "r7780mp", vectors, + NULL, NULL, mask_registers, NULL, NULL); + +unsigned char * __init highlander_init_irq_r7780mp(void) +{ + if ((ctrl_inw(0xa4000700) & 0xf000) == 0x2000) { + printk(KERN_INFO "Using r7780mp interrupt controller.\n"); + register_intc_controller(&intc_desc); + return irl2irq; + } + + return NULL; +} diff --git a/arch/sh/boards/renesas/r7780rp/irq-r7780rp.c b/arch/sh/boards/renesas/r7780rp/irq-r7780rp.c index f5f358746c9e..d6b107a2e0b5 100644 --- a/arch/sh/boards/renesas/r7780rp/irq-r7780rp.c +++ b/arch/sh/boards/renesas/r7780rp/irq-r7780rp.c @@ -9,13 +9,14 @@ * for more details. */ #include -#include #include -void __init highlander_init_irq(void) +unsigned char * __init highlander_init_irq_r7780rp(void) { int i; for (i = 0; i < 15; i++) make_r7780rp_irq(i); + + return NULL; } diff --git a/arch/sh/boards/renesas/r7780rp/irq-r7785rp.c b/arch/sh/boards/renesas/r7780rp/irq-r7785rp.c index dd6ec4ce44dc..b2c6a84673bd 100644 --- a/arch/sh/boards/renesas/r7780rp/irq-r7785rp.c +++ b/arch/sh/boards/renesas/r7780rp/irq-r7785rp.c @@ -1,19 +1,55 @@ /* - * Renesas Solutions Highlander R7780RP-1 Support. + * Renesas Solutions Highlander R7785RP Support. * * Copyright (C) 2002 Atom Create Engineering Co., Ltd. * Copyright (C) 2006 Paul Mundt + * Copyright (C) 2007 Magnus Damm * * 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 -#include +#include +#include #include -void __init highlander_init_irq(void) +enum { + UNUSED = 0, + + /* board specific interrupt sources */ + AX88796, /* Ethernet controller */ + CF, /* Compact Flash */ +}; + +static struct intc_vect vectors[] __initdata = { + INTC_IRQ(CF, IRQ_CF), + INTC_IRQ(AX88796, IRQ_AX88796), +}; + +static struct intc_mask_reg mask_registers[] __initdata = { + { 0xa4000010, 0, 16, /* IRLMCR1 */ + { 0, 0, 0, 0, CF, AX88796, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0 } }, +}; + +static unsigned char irl2irq[HL_NR_IRL] __initdata = { + 0, IRQ_CF, 0, 0, + 0, 0, 0, 0, + 0, 0, IRQ_AX88796, 0, + 0, 0, 0, +}; + +static DECLARE_INTC_DESC(intc_desc, "r7785rp", vectors, + NULL, NULL, mask_registers, NULL, NULL); + +unsigned char * __init highlander_init_irq_r7785rp(void) { + if ((ctrl_inw(0xa4000158) & 0xf000) != 0x1000) + return NULL; + + printk(KERN_INFO "Using r7785rp interrupt controller.\n"); + ctrl_outw(0x0000, PA_IRLSSR1); /* FPGA IRLSSR1(CF_CD clear) */ /* Setup the FPGA IRL */ @@ -24,6 +60,6 @@ void __init highlander_init_irq(void) ctrl_outw(0x4321, PA_IRLPRE); /* FPGA IRLE */ ctrl_outw(0x0000, PA_IRLPRF); /* FPGA IRLF */ - make_r7780rp_irq(1); /* CF card */ - make_r7780rp_irq(10); /* On-board ethernet */ + register_intc_controller(&intc_desc); + return irl2irq; } diff --git a/arch/sh/boards/renesas/r7780rp/setup.c b/arch/sh/boards/renesas/r7780rp/setup.c index 3ab5fc4b55b7..afe9de73666a 100644 --- a/arch/sh/boards/renesas/r7780rp/setup.c +++ b/arch/sh/boards/renesas/r7780rp/setup.c @@ -31,8 +31,8 @@ static struct resource r8a66597_usb_host_resources[] = { }, [1] = { .name = "r8a66597_hcd", - .start = 11, /* irq number */ - .end = 11, + .start = IRQ_EXT1, /* irq number */ + .end = IRQ_EXT1, .flags = IORESOURCE_IRQ, }, }; @@ -57,8 +57,8 @@ static struct resource m66592_usb_peripheral_resources[] = { }, [1] = { .name = "m66592_udc", - .start = 9, /* irq number */ - .end = 9, + .start = IRQ_EXT4, /* irq number */ + .end = IRQ_EXT4, .flags = IORESOURCE_IRQ, }, }; @@ -86,11 +86,7 @@ static struct resource cf_ide_resources[] = { .flags = IORESOURCE_MEM, }, [2] = { -#ifdef CONFIG_SH_R7780RP - .start = 4, -#else - .start = 1, -#endif + .start = IRQ_CF, .flags = IORESOURCE_IRQ, }, }; @@ -225,12 +221,50 @@ static void __init highlander_setup(char **cmdline_p) pm_power_off = r7780rp_power_off; } +static unsigned char irl2irq[HL_NR_IRL]; + +int highlander_irq_demux(int irq) +{ + if (irq >= HL_NR_IRL || !irl2irq[irq]) + return irq; + + return irl2irq[irq]; +} + +void __init highlander_init_irq(void) +{ + unsigned char *ucp = NULL; + + do { +#ifdef CONFIG_SH_R7780MP + ucp = highlander_init_irq_r7780mp(); + if (ucp) + break; +#endif +#ifdef CONFIG_SH_R7785RP + ucp = highlander_init_irq_r7785rp(); + if (ucp) + break; +#endif +#ifdef CONFIG_SH_R7780RP + highlander_init_irq_r7780rp(); + ucp = irl2irq; + break; +#endif + } while (0); + + if (ucp) { + plat_irq_setup_pins(IRQ_MODE_IRL3210); + memcpy(irl2irq, ucp, HL_NR_IRL); + } +} + /* * The Machine Vector */ static struct sh_machine_vector mv_highlander __initmv = { .mv_name = "Highlander", - .mv_nr_irqs = 109, .mv_setup = highlander_setup, .mv_init_irq = highlander_init_irq, + .mv_irq_demux = highlander_irq_demux, }; -- cgit v1.2.1