1*aaf9128aSKuninori Morimoto // SPDX-License-Identifier: GPL-2.0 2da2014a2SPaul Mundt /* 3da2014a2SPaul Mundt * Renesas Solutions Highlander R7785RP Support. 4da2014a2SPaul Mundt * 5da2014a2SPaul Mundt * Copyright (C) 2002 Atom Create Engineering Co., Ltd. 6da2014a2SPaul Mundt * Copyright (C) 2006 - 2008 Paul Mundt 7da2014a2SPaul Mundt * Copyright (C) 2007 Magnus Damm 8da2014a2SPaul Mundt */ 9da2014a2SPaul Mundt #include <linux/init.h> 10da2014a2SPaul Mundt #include <linux/irq.h> 11da2014a2SPaul Mundt #include <linux/io.h> 127639a454SPaul Mundt #include <mach/highlander.h> 13da2014a2SPaul Mundt 14da2014a2SPaul Mundt enum { 15da2014a2SPaul Mundt UNUSED = 0, 16da2014a2SPaul Mundt 17da2014a2SPaul Mundt /* FPGA specific interrupt sources */ 18da2014a2SPaul Mundt CF, /* Compact Flash */ 19da2014a2SPaul Mundt SMBUS, /* SMBUS */ 20da2014a2SPaul Mundt TP, /* Touch panel */ 21da2014a2SPaul Mundt RTC, /* RTC Alarm */ 22da2014a2SPaul Mundt TH_ALERT, /* Temperature sensor */ 23da2014a2SPaul Mundt AX88796, /* Ethernet controller */ 24da2014a2SPaul Mundt 25da2014a2SPaul Mundt /* external bus connector */ 26da2014a2SPaul Mundt EXT0, EXT1, EXT2, EXT3, EXT4, EXT5, EXT6, EXT7, 27da2014a2SPaul Mundt }; 28da2014a2SPaul Mundt 29da2014a2SPaul Mundt static struct intc_vect vectors[] __initdata = { 30da2014a2SPaul Mundt INTC_IRQ(CF, IRQ_CF), 31da2014a2SPaul Mundt INTC_IRQ(SMBUS, IRQ_SMBUS), 32da2014a2SPaul Mundt INTC_IRQ(TP, IRQ_TP), 33da2014a2SPaul Mundt INTC_IRQ(RTC, IRQ_RTC), 34da2014a2SPaul Mundt INTC_IRQ(TH_ALERT, IRQ_TH_ALERT), 35da2014a2SPaul Mundt 36da2014a2SPaul Mundt INTC_IRQ(EXT0, IRQ_EXT0), INTC_IRQ(EXT1, IRQ_EXT1), 37da2014a2SPaul Mundt INTC_IRQ(EXT2, IRQ_EXT2), INTC_IRQ(EXT3, IRQ_EXT3), 38da2014a2SPaul Mundt 39da2014a2SPaul Mundt INTC_IRQ(EXT4, IRQ_EXT4), INTC_IRQ(EXT5, IRQ_EXT5), 40da2014a2SPaul Mundt INTC_IRQ(EXT6, IRQ_EXT6), INTC_IRQ(EXT7, IRQ_EXT7), 41da2014a2SPaul Mundt 42da2014a2SPaul Mundt INTC_IRQ(AX88796, IRQ_AX88796), 43da2014a2SPaul Mundt }; 44da2014a2SPaul Mundt 45da2014a2SPaul Mundt static struct intc_mask_reg mask_registers[] __initdata = { 46da2014a2SPaul Mundt { 0xa4000010, 0, 16, /* IRLMCR1 */ 47da2014a2SPaul Mundt { 0, 0, 0, 0, CF, AX88796, SMBUS, TP, 48da2014a2SPaul Mundt RTC, 0, TH_ALERT, 0, 0, 0, 0, 0 } }, 49da2014a2SPaul Mundt { 0xa4000012, 0, 16, /* IRLMCR2 */ 50da2014a2SPaul Mundt { 0, 0, 0, 0, 0, 0, 0, 0, 51da2014a2SPaul Mundt EXT7, EXT6, EXT5, EXT4, EXT3, EXT2, EXT1, EXT0 } }, 52da2014a2SPaul Mundt }; 53da2014a2SPaul Mundt 54da2014a2SPaul Mundt static unsigned char irl2irq[HL_NR_IRL] __initdata = { 55da2014a2SPaul Mundt 0, IRQ_CF, IRQ_EXT4, IRQ_EXT5, 56da2014a2SPaul Mundt IRQ_EXT6, IRQ_EXT7, IRQ_SMBUS, IRQ_TP, 57da2014a2SPaul Mundt IRQ_RTC, IRQ_TH_ALERT, IRQ_AX88796, IRQ_EXT0, 58da2014a2SPaul Mundt IRQ_EXT1, IRQ_EXT2, IRQ_EXT3, 59da2014a2SPaul Mundt }; 60da2014a2SPaul Mundt 61da2014a2SPaul Mundt static DECLARE_INTC_DESC(intc_desc, "r7785rp", vectors, 62da2014a2SPaul Mundt NULL, mask_registers, NULL, NULL); 63da2014a2SPaul Mundt 64da2014a2SPaul Mundt unsigned char * __init highlander_plat_irq_setup(void) 65da2014a2SPaul Mundt { 669d56dd3bSPaul Mundt if ((__raw_readw(0xa4000158) & 0xf000) != 0x1000) 67da2014a2SPaul Mundt return NULL; 68da2014a2SPaul Mundt 69da2014a2SPaul Mundt printk(KERN_INFO "Using r7785rp interrupt controller.\n"); 70da2014a2SPaul Mundt 719d56dd3bSPaul Mundt __raw_writew(0x0000, PA_IRLSSR1); /* FPGA IRLSSR1(CF_CD clear) */ 72da2014a2SPaul Mundt 73da2014a2SPaul Mundt /* Setup the FPGA IRL */ 749d56dd3bSPaul Mundt __raw_writew(0x0000, PA_IRLPRA); /* FPGA IRLA */ 759d56dd3bSPaul Mundt __raw_writew(0xe598, PA_IRLPRB); /* FPGA IRLB */ 769d56dd3bSPaul Mundt __raw_writew(0x7060, PA_IRLPRC); /* FPGA IRLC */ 779d56dd3bSPaul Mundt __raw_writew(0x0000, PA_IRLPRD); /* FPGA IRLD */ 789d56dd3bSPaul Mundt __raw_writew(0x4321, PA_IRLPRE); /* FPGA IRLE */ 799d56dd3bSPaul Mundt __raw_writew(0xdcba, PA_IRLPRF); /* FPGA IRLF */ 80da2014a2SPaul Mundt 81da2014a2SPaul Mundt register_intc_controller(&intc_desc); 82da2014a2SPaul Mundt return irl2irq; 83da2014a2SPaul Mundt } 84