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openwrt/target/linux/atheros-2.6/patches/100-board.patch
Felix Fietkau 216e8fcc55 Add support for Atheros SoC (used in Fonera, Meraki) - Merry Christmas, everybody :) 
SVN-Revision: 5898
2006-12-25 08:05:48 +00:00

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diff -urN linux.old/arch/mips/ar531x/ar531x.h linux.dev/arch/mips/ar531x/ar531x.h
--- linux.old/arch/mips/ar531x/ar531x.h 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/arch/mips/ar531x/ar531x.h 2006-12-16 03:51:47.000000000 +0100
@@ -0,0 +1,734 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
+ * Copyright (C) 2006 FON Technology, SL.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ */
+
+#ifndef AR531X_H
+#define AR531X_H 1
+
+/*
+ * Address map
+ */
+#define AR5315_SDRAM0 0x00000000 /* DRAM */
+#define AR5315_SPI_READ 0x08000000 /* SPI FLASH */
+#define AR5315_WLAN0 0xB0000000 /* Wireless MMR */
+#define AR5315_PCI 0xB0100000 /* PCI MMR */
+#define AR5315_SDRAMCTL 0xB0300000 /* SDRAM MMR */
+#define AR5315_LOCAL 0xB0400000 /* LOCAL BUS MMR */
+#define AR5315_ENET0 0xB0500000 /* ETHERNET MMR */
+#define AR5315_DSLBASE 0xB1000000 /* RESET CONTROL MMR */
+#define AR5315_UART0 0xB1100003 /* UART MMR */
+#define AR5315_SPI 0xB1300000 /* SPI FLASH MMR */
+#define AR5315_FLASHBT 0xBfc00000 /* ro boot alias to FLASH */
+#define AR5315_RAM1 0x40000000 /* ram alias */
+#define AR5315_PCIEXT 0x80000000 /* pci external */
+#define AR5315_RAM2 0xc0000000 /* ram alias */
+#define AR5315_RAM3 0xe0000000 /* ram alias */
+
+/*
+ * Reset Register
+ */
+#define AR5315_COLD_RESET (AR5315_DSLBASE + 0x0000)
+
+/* Cold Reset */
+#define RESET_COLD_AHB 0x00000001
+#define RESET_COLD_APB 0x00000002
+#define RESET_COLD_CPU 0x00000004
+#define RESET_COLD_CPUWARM 0x00000008
+#define RESET_SYSTEM (RESET_COLD_CPU | RESET_COLD_APB | RESET_COLD_AHB) /* full system */
+
+#define AR5317_RESET_SYSTEM 0x00000010
+
+/* Warm Reset */
+
+#define AR5315_RESET (AR5315_DSLBASE + 0x0004)
+
+#define RESET_WARM_WLAN0_MAC 0x00000001 /* warm reset WLAN0 MAC */
+#define RESET_WARM_WLAN0_BB 0x00000002 /* warm reset WLAN0 BaseBand */
+#define RESET_MPEGTS_RSVD 0x00000004 /* warm reset MPEG-TS */
+#define RESET_PCIDMA 0x00000008 /* warm reset PCI ahb/dma */
+#define RESET_MEMCTL 0x00000010 /* warm reset memory controller */
+#define RESET_LOCAL 0x00000020 /* warm reset local bus */
+#define RESET_I2C_RSVD 0x00000040 /* warm reset I2C bus */
+#define RESET_SPI 0x00000080 /* warm reset SPI interface */
+#define RESET_UART0 0x00000100 /* warm reset UART0 */
+#define RESET_IR_RSVD 0x00000200 /* warm reset IR interface */
+#define RESET_EPHY0 0x00000400 /* cold reset ENET0 phy */
+#define RESET_ENET0 0x00000800 /* cold reset ENET0 mac */
+
+/*
+ * AHB master arbitration control
+ */
+#define AR5315_AHB_ARB_CTL (AR5315_DSLBASE + 0x0008)
+
+#define ARB_CPU 0x00000001 /* CPU, default */
+#define ARB_WLAN 0x00000002 /* WLAN */
+#define ARB_MPEGTS_RSVD 0x00000004 /* MPEG-TS */
+#define ARB_LOCAL 0x00000008 /* LOCAL */
+#define ARB_PCI 0x00000010 /* PCI */
+#define ARB_ETHERNET 0x00000020 /* Ethernet */
+#define ARB_RETRY 0x00000100 /* retry policy, debug only */
+
+/*
+ * Config Register
+ */
+#define AR5315_ENDIAN_CTL (AR5315_DSLBASE + 0x000c)
+
+#define CONFIG_AHB 0x00000001 /* EC - AHB bridge endianess */
+#define CONFIG_WLAN 0x00000002 /* WLAN byteswap */
+#define CONFIG_MPEGTS_RSVD 0x00000004 /* MPEG-TS byteswap */
+#define CONFIG_PCI 0x00000008 /* PCI byteswap */
+#define CONFIG_MEMCTL 0x00000010 /* Memory controller endianess */
+#define CONFIG_LOCAL 0x00000020 /* Local bus byteswap */
+#define CONFIG_ETHERNET 0x00000040 /* Ethernet byteswap */
+
+#define CONFIG_MERGE 0x00000200 /* CPU write buffer merge */
+#define CONFIG_CPU 0x00000400 /* CPU big endian */
+#define CONFIG_PCIAHB 0x00000800
+#define CONFIG_PCIAHB_BRIDGE 0x00001000
+#define CONFIG_SPI 0x00008000 /* SPI byteswap */
+#define CONFIG_CPU_DRAM 0x00010000
+#define CONFIG_CPU_PCI 0x00020000
+#define CONFIG_CPU_MMR 0x00040000
+#define CONFIG_BIG 0x00000400
+
+
+/*
+ * NMI control
+ */
+#define AR5315_NMI_CTL (AR5315_DSLBASE + 0x0010)
+
+#define NMI_EN 1
+
+/*
+ * Revision Register - Initial value is 0x3010 (WMAC 3.0, AR531X 1.0).
+ */
+#define AR5315_SREV (AR5315_DSLBASE + 0x0014)
+
+#define REV_MAJ 0x00f0
+#define REV_MAJ_S 4
+#define REV_MIN 0x000f
+#define REV_MIN_S 0
+#define REV_CHIP (REV_MAJ|REV_MIN)
+
+/*
+ * Interface Enable
+ */
+#define AR5315_IF_CTL (AR5315_DSLBASE + 0x0018)
+
+#define IF_MASK 0x00000007
+#define IF_DISABLED 0
+#define IF_PCI 1
+#define IF_TS_LOCAL 2
+#define IF_ALL 3 /* only for emulation with separate pins */
+#define IF_LOCAL_HOST 0x00000008
+#define IF_PCI_HOST 0x00000010
+#define IF_PCI_INTR 0x00000020
+#define IF_PCI_CLK_MASK 0x00030000
+#define IF_PCI_CLK_INPUT 0
+#define IF_PCI_CLK_OUTPUT_LOW 1
+#define IF_PCI_CLK_OUTPUT_CLK 2
+#define IF_PCI_CLK_OUTPUT_HIGH 3
+#define IF_PCI_CLK_SHIFT 16
+
+
+/* Major revision numbers, bits 7..4 of Revision ID register */
+#define REV_MAJ_AR5311 0x01
+#define REV_MAJ_AR5312 0x04
+#define REV_MAJ_AR5315 0x0B
+
+/*
+ * APB Interrupt control
+ */
+
+#define AR5315_ISR (AR5315_DSLBASE + 0x0020)
+#define AR5315_IMR (AR5315_DSLBASE + 0x0024)
+#define AR5315_GISR (AR5315_DSLBASE + 0x0028)
+
+#define ISR_UART0 0x0001 /* high speed UART */
+#define ISR_I2C_RSVD 0x0002 /* I2C bus */
+#define ISR_SPI 0x0004 /* SPI bus */
+#define ISR_AHB 0x0008 /* AHB error */
+#define ISR_APB 0x0010 /* APB error */
+#define ISR_TIMER 0x0020 /* timer */
+#define ISR_GPIO 0x0040 /* GPIO */
+#define ISR_WD 0x0080 /* watchdog */
+#define ISR_IR_RSVD 0x0100 /* IR */
+
+#define IMR_UART0 ISR_UART0
+#define IMR_I2C_RSVD ISR_I2C_RSVD
+#define IMR_SPI ISR_SPI
+#define IMR_AHB ISR_AHB
+#define IMR_APB ISR_APB
+#define IMR_TIMER ISR_TIMER
+#define IMR_GPIO ISR_GPIO
+#define IMR_WD ISR_WD
+#define IMR_IR_RSVD ISR_IR_RSVD
+
+#define GISR_MISC 0x0001
+#define GISR_WLAN0 0x0002
+#define GISR_MPEGTS_RSVD 0x0004
+#define GISR_LOCALPCI 0x0008
+#define GISR_WMACPOLL 0x0010
+#define GISR_TIMER 0x0020
+#define GISR_ETHERNET 0x0040
+
+/*
+ * Interrupt routing from IO to the processor IP bits
+ * Define our inter mask and level
+ */
+#define AR5315_INTR_MISCIO SR_IBIT3
+#define AR5315_INTR_WLAN0 SR_IBIT4
+#define AR5315_INTR_ENET0 SR_IBIT5
+#define AR5315_INTR_LOCALPCI SR_IBIT6
+#define AR5315_INTR_WMACPOLL SR_IBIT7
+#define AR5315_INTR_COMPARE SR_IBIT8
+
+/*
+ * Timers
+ */
+#define AR5315_TIMER (AR5315_DSLBASE + 0x0030)
+#define AR5315_RELOAD (AR5315_DSLBASE + 0x0034)
+#define AR5315_WD (AR5315_DSLBASE + 0x0038)
+#define AR5315_WDC (AR5315_DSLBASE + 0x003c)
+
+#define WDC_RESET 0x00000002 /* reset on watchdog */
+#define WDC_NMI 0x00000001 /* NMI on watchdog */
+#define WDC_IGNORE_EXPIRATION 0x00000000
+
+/*
+ * Interface Debug
+ */
+#define AR531X_FLASHDBG (AR531X_RESETTMR + 0x0040)
+#define AR531X_MIIDBG (AR531X_RESETTMR + 0x0044)
+
+
+/*
+ * CPU Performance Counters
+ */
+#define AR5315_PERFCNT0 (AR5315_DSLBASE + 0x0048)
+#define AR5315_PERFCNT1 (AR5315_DSLBASE + 0x004c)
+
+#define PERF_DATAHIT 0x0001 /* Count Data Cache Hits */
+#define PERF_DATAMISS 0x0002 /* Count Data Cache Misses */
+#define PERF_INSTHIT 0x0004 /* Count Instruction Cache Hits */
+#define PERF_INSTMISS 0x0008 /* Count Instruction Cache Misses */
+#define PERF_ACTIVE 0x0010 /* Count Active Processor Cycles */
+#define PERF_WBHIT 0x0020 /* Count CPU Write Buffer Hits */
+#define PERF_WBMISS 0x0040 /* Count CPU Write Buffer Misses */
+
+#define PERF_EB_ARDY 0x0001 /* Count EB_ARdy signal */
+#define PERF_EB_AVALID 0x0002 /* Count EB_AValid signal */
+#define PERF_EB_WDRDY 0x0004 /* Count EB_WDRdy signal */
+#define PERF_EB_RDVAL 0x0008 /* Count EB_RdVal signal */
+#define PERF_VRADDR 0x0010 /* Count valid read address cycles */
+#define PERF_VWADDR 0x0020 /* Count valid write address cycles */
+#define PERF_VWDATA 0x0040 /* Count valid write data cycles */
+
+/*
+ * AHB Error Reporting.
+ */
+#define AR5315_AHB_ERR0 (AR5315_DSLBASE + 0x0050) /* error */
+#define AR5315_AHB_ERR1 (AR5315_DSLBASE + 0x0054) /* haddr */
+#define AR5315_AHB_ERR2 (AR5315_DSLBASE + 0x0058) /* hwdata */
+#define AR5315_AHB_ERR3 (AR5315_DSLBASE + 0x005c) /* hrdata */
+#define AR5315_AHB_ERR4 (AR5315_DSLBASE + 0x0060) /* status */
+
+#define AHB_ERROR_DET 1 /* AHB Error has been detected, */
+ /* write 1 to clear all bits in ERR0 */
+#define AHB_ERROR_OVR 2 /* AHB Error overflow has been detected */
+#define AHB_ERROR_WDT 4 /* AHB Error due to wdt instead of hresp */
+
+#define PROCERR_HMAST 0x0000000f
+#define PROCERR_HMAST_DFLT 0
+#define PROCERR_HMAST_WMAC 1
+#define PROCERR_HMAST_ENET 2
+#define PROCERR_HMAST_PCIENDPT 3
+#define PROCERR_HMAST_LOCAL 4
+#define PROCERR_HMAST_CPU 5
+#define PROCERR_HMAST_PCITGT 6
+
+#define PROCERR_HMAST_S 0
+#define PROCERR_HWRITE 0x00000010
+#define PROCERR_HSIZE 0x00000060
+#define PROCERR_HSIZE_S 5
+#define PROCERR_HTRANS 0x00000180
+#define PROCERR_HTRANS_S 7
+#define PROCERR_HBURST 0x00000e00
+#define PROCERR_HBURST_S 9
+
+
+
+/*
+ * Clock Control
+ */
+#define AR5315_PLLC_CTL (AR5315_DSLBASE + 0x0064)
+#define AR5315_PLLV_CTL (AR5315_DSLBASE + 0x0068)
+#define AR5315_CPUCLK (AR5315_DSLBASE + 0x006c)
+#define AR5315_AMBACLK (AR5315_DSLBASE + 0x0070)
+#define AR5315_SYNCCLK (AR5315_DSLBASE + 0x0074)
+#define AR5315_DSL_SLEEP_CTL (AR5315_DSLBASE + 0x0080)
+#define AR5315_DSL_SLEEP_DUR (AR5315_DSLBASE + 0x0084)
+
+/* PLLc Control fields */
+#define PLLC_REF_DIV_M 0x00000003
+#define PLLC_REF_DIV_S 0
+#define PLLC_FDBACK_DIV_M 0x0000007C
+#define PLLC_FDBACK_DIV_S 2
+#define PLLC_ADD_FDBACK_DIV_M 0x00000080
+#define PLLC_ADD_FDBACK_DIV_S 7
+#define PLLC_CLKC_DIV_M 0x0001c000
+#define PLLC_CLKC_DIV_S 14
+#define PLLC_CLKM_DIV_M 0x00700000
+#define PLLC_CLKM_DIV_S 20
+
+/* CPU CLK Control fields */
+#define CPUCLK_CLK_SEL_M 0x00000003
+#define CPUCLK_CLK_SEL_S 0
+#define CPUCLK_CLK_DIV_M 0x0000000c
+#define CPUCLK_CLK_DIV_S 2
+
+/* AMBA CLK Control fields */
+#define AMBACLK_CLK_SEL_M 0x00000003
+#define AMBACLK_CLK_SEL_S 0
+#define AMBACLK_CLK_DIV_M 0x0000000c
+#define AMBACLK_CLK_DIV_S 2
+
+#if defined(COBRA_EMUL)
+#define AR5315_AMBA_CLOCK_RATE 20000000
+#define AR5315_CPU_CLOCK_RATE 40000000
+#else
+#if defined(DEFAULT_PLL)
+#define AR5315_AMBA_CLOCK_RATE 40000000
+#define AR5315_CPU_CLOCK_RATE 40000000
+#else
+#define AR5315_AMBA_CLOCK_RATE 92000000
+#define AR5315_CPU_CLOCK_RATE 184000000
+#endif /* ! DEFAULT_PLL */
+#endif /* ! COBRA_EMUL */
+
+#define AR5315_UART_CLOCK_RATE AR5315_AMBA_CLOCK_RATE
+#define AR5315_SDRAM_CLOCK_RATE AR5315_AMBA_CLOCK_RATE
+
+/*
+ * The UART computes baud rate as:
+ * baud = clock / (16 * divisor)
+ * where divisor is specified as a High Byte (DLM) and a Low Byte (DLL).
+ */
+#define DESIRED_BAUD_RATE 38400
+
+/*
+ * The WATCHDOG value is computed as
+ * 10 seconds * AR531X_WATCHDOG_CLOCK_RATE
+ */
+#define DESIRED_WATCHDOG_SECONDS 10
+#define AR531X_WATCHDOG_TIME \
+ (DESIRED_WATCHDOG_SECONDS * AR531X_WATCHDOG_CLOCK_RATE)
+
+
+#define CLOCKCTL_UART0 0x0010 /* enable UART0 external clock */
+
+
+ /*
+ * Applicable "PCICFG" bits for WLAN(s). Assoc status and LED mode.
+ */
+#define AR531X_PCICFG (AR531X_RESETTMR + 0x00b0)
+#define ASSOC_STATUS_M 0x00000003
+#define ASSOC_STATUS_NONE 0
+#define ASSOC_STATUS_PENDING 1
+#define ASSOC_STATUS_ASSOCIATED 2
+#define LED_MODE_M 0x0000001c
+#define LED_BLINK_THRESHOLD_M 0x000000e0
+#define LED_SLOW_BLINK_MODE 0x00000100
+
+/*
+ * GPIO
+ */
+
+#define AR5315_GPIO_DI (AR5315_DSLBASE + 0x0088)
+#define AR5315_GPIO_DO (AR5315_DSLBASE + 0x0090)
+#define AR5315_GPIO_CR (AR5315_DSLBASE + 0x0098)
+#define AR5315_GPIO_INT (AR5315_DSLBASE + 0x00a0)
+
+#define GPIO_CR_M(x) (1 << (x)) /* mask for i/o */
+#define GPIO_CR_O(x) (1 << (x)) /* output */
+#define GPIO_CR_I(x) (0 << (x)) /* input */
+
+#define GPIO_INT(x,Y) ((x) << (8 * (Y))) /* interrupt enable */
+#define GPIO_INT_M(Y) ((0x3F) << (8 * (Y))) /* mask for int */
+#define GPIO_INT_LVL(x,Y) ((x) << (8 * (Y) + 6)) /* interrupt level */
+#define GPIO_INT_LVL_M(Y) ((0x3) << (8 * (Y) + 6)) /* mask for int level */
+
+#define AR5315_RESET_GPIO 5
+#define AR5315_NUM_GPIO 22
+
+
+/*
+ * PCI Clock Control
+ */
+
+#define AR5315_PCICLK (AR5315_DSLBASE + 0x00a4)
+
+#define PCICLK_INPUT_M 0x3
+#define PCICLK_INPUT_S 0
+
+#define PCICLK_PLLC_CLKM 0
+#define PCICLK_PLLC_CLKM1 1
+#define PCICLK_PLLC_CLKC 2
+#define PCICLK_REF_CLK 3
+
+#define PCICLK_DIV_M 0xc
+#define PCICLK_DIV_S 2
+
+#define PCICLK_IN_FREQ 0
+#define PCICLK_IN_FREQ_DIV_6 1
+#define PCICLK_IN_FREQ_DIV_8 2
+#define PCICLK_IN_FREQ_DIV_10 3
+
+/*
+ * Observation Control Register
+ */
+#define AR5315_OCR (AR5315_DSLBASE + 0x00b0)
+#define OCR_GPIO0_IRIN 0x0040
+#define OCR_GPIO1_IROUT 0x0080
+#define OCR_GPIO3_RXCLR 0x0200
+
+/*
+ * General Clock Control
+ */
+
+#define AR5315_MISCCLK (AR5315_DSLBASE + 0x00b4)
+#define MISCCLK_PLLBYPASS_EN 0x00000001
+#define MISCCLK_PROCREFCLK 0x00000002
+
+/*
+ * SDRAM Controller
+ * - No read or write buffers are included.
+ */
+#define AR5315_MEM_CFG (AR5315_SDRAMCTL + 0x00)
+#define AR5315_MEM_CTRL (AR5315_SDRAMCTL + 0x0c)
+#define AR5315_MEM_REF (AR5315_SDRAMCTL + 0x10)
+
+#define SDRAM_DATA_WIDTH_M 0x00006000
+#define SDRAM_DATA_WIDTH_S 13
+
+#define SDRAM_COL_WIDTH_M 0x00001E00
+#define SDRAM_COL_WIDTH_S 9
+
+#define SDRAM_ROW_WIDTH_M 0x000001E0
+#define SDRAM_ROW_WIDTH_S 5
+
+#define SDRAM_BANKADDR_BITS_M 0x00000018
+#define SDRAM_BANKADDR_BITS_S 3
+
+
+/*
+ * SDRAM Memory Refresh (MEM_REF) value is computed as:
+ * MEMCTL_SREFR = (Tr * hclk_freq) / R
+ * where Tr is max. time of refresh of any single row
+ * R is number of rows in the DRAM
+ * For most 133MHz SDRAM parts, Tr=64ms, R=4096 or 8192
+ */
+#if defined(COBRA_EMUL)
+#define AR5315_SDRAM_MEMORY_REFRESH_VALUE 0x96
+#else
+#if defined(DEFAULT_PLL)
+#define AR5315_SDRAM_MEMORY_REFRESH_VALUE 0x200
+#else
+#define AR5315_SDRAM_MEMORY_REFRESH_VALUE 0x61a
+#endif /* ! DEFAULT_PLL */
+#endif
+
+#define AR5315_SDRAM_DDR_SDRAM 0 /* Not DDR SDRAM */
+#define AR5315_SDRAM_DATA_WIDTH 16
+#define AR5315_SDRAM_COL_WIDTH 8
+#define AR5315_SDRAM_ROW_WIDTH 12
+
+/*
+ * SPI Flash Interface Registers
+ */
+
+#define AR5315_SPI_CTL (AR5315_SPI + 0x00)
+#define AR5315_SPI_OPCODE (AR5315_SPI + 0x04)
+#define AR5315_SPI_DATA (AR5315_SPI + 0x08)
+
+#define SPI_CTL_START 0x00000100
+#define SPI_CTL_BUSY 0x00010000
+#define SPI_CTL_TXCNT_MASK 0x0000000f
+#define SPI_CTL_RXCNT_MASK 0x000000f0
+#define SPI_CTL_TX_RX_CNT_MASK 0x000000ff
+#define SPI_CTL_SIZE_MASK 0x00060000
+
+#define SPI_CTL_CLK_SEL_MASK 0x03000000
+#define SPI_OPCODE_MASK 0x000000ff
+
+/*
+ * PCI-MAC Configuration registers
+ */
+#define PCI_MAC_RC (AR5315_PCI + 0x4000)
+#define PCI_MAC_SCR (AR5315_PCI + 0x4004)
+#define PCI_MAC_INTPEND (AR5315_PCI + 0x4008)
+#define PCI_MAC_SFR (AR5315_PCI + 0x400C)
+#define PCI_MAC_PCICFG (AR5315_PCI + 0x4010)
+#define PCI_MAC_SREV (AR5315_PCI + 0x4020)
+
+#define PCI_MAC_RC_MAC 0x00000001
+#define PCI_MAC_RC_BB 0x00000002
+
+#define PCI_MAC_SCR_SLMODE_M 0x00030000
+#define PCI_MAC_SCR_SLMODE_S 16
+#define PCI_MAC_SCR_SLM_FWAKE 0
+#define PCI_MAC_SCR_SLM_FSLEEP 1
+#define PCI_MAC_SCR_SLM_NORMAL 2
+
+#define PCI_MAC_SFR_SLEEP 0x00000001
+
+#define PCI_MAC_PCICFG_SPWR_DN 0x00010000
+
+
+
+
+/*
+ * PCI Bus Interface Registers
+ */
+#define AR5315_PCI_1MS_REG (AR5315_PCI + 0x0008)
+#define AR5315_PCI_1MS_MASK 0x3FFFF /* # of AHB clk cycles in 1ms */
+
+#define AR5315_PCI_MISC_CONFIG (AR5315_PCI + 0x000c)
+#define AR5315_PCIMISC_TXD_EN 0x00000001 /* Enable TXD for fragments */
+#define AR5315_PCIMISC_CFG_SEL 0x00000002 /* mem or config cycles */
+#define AR5315_PCIMISC_GIG_MASK 0x0000000C /* bits 31-30 for pci req */
+#define AR5315_PCIMISC_RST_MODE 0x00000030
+#define AR5315_PCIRST_INPUT 0x00000000 /* 4:5=0 rst is input */
+#define AR5315_PCIRST_LOW 0x00000010 /* 4:5=1 rst to GND */
+#define AR5315_PCIRST_HIGH 0x00000020 /* 4:5=2 rst to VDD */
+#define AR5315_PCIGRANT_EN 0x00000000 /* 6:7=0 early grant en */
+#define AR5315_PCIGRANT_FRAME 0x00000040 /* 6:7=1 grant waits 4 frame */
+#define AR5315_PCIGRANT_IDLE 0x00000080 /* 6:7=2 grant waits 4 idle */
+#define AR5315_PCIGRANT_GAP 0x00000000 /* 6:7=2 grant waits 4 idle */
+#define AR5315_PCICACHE_DIS 0x00001000 /* PCI external access cache disable */
+
+#define AR5315_PCI_OUT_TSTAMP (AR5315_PCI + 0x0010)
+
+#define AR5315_PCI_UNCACHE_CFG (AR5315_PCI + 0x0014)
+
+#define AR5315_PCI_IN_EN (AR5315_PCI + 0x0100)
+#define AR5315_PCI_IN_EN0 0x01 /* Enable chain 0 */
+#define AR5315_PCI_IN_EN1 0x02 /* Enable chain 1 */
+#define AR5315_PCI_IN_EN2 0x04 /* Enable chain 2 */
+#define AR5315_PCI_IN_EN3 0x08 /* Enable chain 3 */
+
+#define AR5315_PCI_IN_DIS (AR5315_PCI + 0x0104)
+#define AR5315_PCI_IN_DIS0 0x01 /* Disable chain 0 */
+#define AR5315_PCI_IN_DIS1 0x02 /* Disable chain 1 */
+#define AR5315_PCI_IN_DIS2 0x04 /* Disable chain 2 */
+#define AR5315_PCI_IN_DIS3 0x08 /* Disable chain 3 */
+
+#define AR5315_PCI_IN_PTR (AR5315_PCI + 0x0200)
+
+#define AR5315_PCI_OUT_EN (AR5315_PCI + 0x0400)
+#define AR5315_PCI_OUT_EN0 0x01 /* Enable chain 0 */
+
+#define AR5315_PCI_OUT_DIS (AR5315_PCI + 0x0404)
+#define AR5315_PCI_OUT_DIS0 0x01 /* Disable chain 0 */
+
+#define AR5315_PCI_OUT_PTR (AR5315_PCI + 0x0408)
+
+#define AR5315_PCI_INT_STATUS (AR5315_PCI + 0x0500) /* write one to clr */
+#define AR5315_PCI_TXINT 0x00000001 /* Desc In Completed */
+#define AR5315_PCI_TXOK 0x00000002 /* Desc In OK */
+#define AR5315_PCI_TXERR 0x00000004 /* Desc In ERR */
+#define AR5315_PCI_TXEOL 0x00000008 /* Desc In End-of-List */
+#define AR5315_PCI_RXINT 0x00000010 /* Desc Out Completed */
+#define AR5315_PCI_RXOK 0x00000020 /* Desc Out OK */
+#define AR5315_PCI_RXERR 0x00000040 /* Desc Out ERR */
+#define AR5315_PCI_RXEOL 0x00000080 /* Desc Out EOL */
+#define AR5315_PCI_TXOOD 0x00000200 /* Desc In Out-of-Desc */
+#define AR5315_PCI_MASK 0x0000FFFF /* Desc Mask */
+#define AR5315_PCI_EXT_INT 0x02000000
+#define AR5315_PCI_ABORT_INT 0x04000000
+
+#define AR5315_PCI_INT_MASK (AR5315_PCI + 0x0504) /* same as INT_STATUS */
+
+#define AR5315_PCI_INTEN_REG (AR5315_PCI + 0x0508)
+#define AR5315_PCI_INT_DISABLE 0x00 /* disable pci interrupts */
+#define AR5315_PCI_INT_ENABLE 0x01 /* enable pci interrupts */
+
+#define AR5315_PCI_HOST_IN_EN (AR5315_PCI + 0x0800)
+#define AR5315_PCI_HOST_IN_DIS (AR5315_PCI + 0x0804)
+#define AR5315_PCI_HOST_IN_PTR (AR5315_PCI + 0x0810)
+#define AR5315_PCI_HOST_OUT_EN (AR5315_PCI + 0x0900)
+#define AR5315_PCI_HOST_OUT_DIS (AR5315_PCI + 0x0904)
+#define AR5315_PCI_HOST_OUT_PTR (AR5315_PCI + 0x0908)
+
+
+/*
+ * Local Bus Interface Registers
+ */
+#define AR5315_LB_CONFIG (AR5315_LOCAL + 0x0000)
+#define AR5315_LBCONF_OE 0x00000001 /* =1 OE is low-true */
+#define AR5315_LBCONF_CS0 0x00000002 /* =1 first CS is low-true */
+#define AR5315_LBCONF_CS1 0x00000004 /* =1 2nd CS is low-true */
+#define AR5315_LBCONF_RDY 0x00000008 /* =1 RDY is low-true */
+#define AR5315_LBCONF_WE 0x00000010 /* =1 Write En is low-true */
+#define AR5315_LBCONF_WAIT 0x00000020 /* =1 WAIT is low-true */
+#define AR5315_LBCONF_ADS 0x00000040 /* =1 Adr Strobe is low-true */
+#define AR5315_LBCONF_MOT 0x00000080 /* =0 Intel, =1 Motorola */
+#define AR5315_LBCONF_8CS 0x00000100 /* =1 8 bits CS, 0= 16bits */
+#define AR5315_LBCONF_8DS 0x00000200 /* =1 8 bits Data S, 0=16bits */
+#define AR5315_LBCONF_ADS_EN 0x00000400 /* =1 Enable ADS */
+#define AR5315_LBCONF_ADR_OE 0x00000800 /* =1 Adr cap on OE, WE or DS */
+#define AR5315_LBCONF_ADDT_MUX 0x00001000 /* =1 Adr and Data share bus */
+#define AR5315_LBCONF_DATA_OE 0x00002000 /* =1 Data cap on OE, WE, DS */
+#define AR5315_LBCONF_16DATA 0x00004000 /* =1 Data is 16 bits wide */
+#define AR5315_LBCONF_SWAPDT 0x00008000 /* =1 Byte swap data */
+#define AR5315_LBCONF_SYNC 0x00010000 /* =1 Bus synchronous to clk */
+#define AR5315_LBCONF_INT 0x00020000 /* =1 Intr is low true */
+#define AR5315_LBCONF_INT_CTR0 0x00000000 /* GND high-Z, Vdd is high-Z */
+#define AR5315_LBCONF_INT_CTR1 0x00040000 /* GND drive, Vdd is high-Z */
+#define AR5315_LBCONF_INT_CTR2 0x00080000 /* GND high-Z, Vdd drive */
+#define AR5315_LBCONF_INT_CTR3 0x000C0000 /* GND drive, Vdd drive */
+#define AR5315_LBCONF_RDY_WAIT 0x00100000 /* =1 RDY is negative of WAIT */
+#define AR5315_LBCONF_INT_PULSE 0x00200000 /* =1 Interrupt is a pulse */
+#define AR5315_LBCONF_ENABLE 0x00400000 /* =1 Falcon respond to LB */
+
+#define AR5315_LB_CLKSEL (AR5315_LOCAL + 0x0004)
+#define AR5315_LBCLK_EXT 0x0001 /* use external clk for lb */
+
+#define AR5315_LB_1MS (AR5315_LOCAL + 0x0008)
+#define AR5315_LB1MS_MASK 0x3FFFF /* # of AHB clk cycles in 1ms */
+
+#define AR5315_LB_MISCCFG (AR5315_LOCAL + 0x000C)
+#define AR5315_LBM_TXD_EN 0x00000001 /* Enable TXD for fragments */
+#define AR5315_LBM_RX_INTEN 0x00000002 /* Enable LB ints on RX ready */
+#define AR5315_LBM_MBOXWR_INTEN 0x00000004 /* Enable LB ints on mbox wr */
+#define AR5315_LBM_MBOXRD_INTEN 0x00000008 /* Enable LB ints on mbox rd */
+#define AR5315_LMB_DESCSWAP_EN 0x00000010 /* Byte swap desc enable */
+#define AR5315_LBM_TIMEOUT_MASK 0x00FFFF80
+#define AR5315_LBM_TIMEOUT_SHFT 7
+#define AR5315_LBM_PORTMUX 0x07000000
+
+
+#define AR5315_LB_RXTSOFF (AR5315_LOCAL + 0x0010)
+
+#define AR5315_LB_TX_CHAIN_EN (AR5315_LOCAL + 0x0100)
+#define AR5315_LB_TXEN_0 0x01
+#define AR5315_LB_TXEN_1 0x02
+#define AR5315_LB_TXEN_2 0x04
+#define AR5315_LB_TXEN_3 0x08
+
+#define AR5315_LB_TX_CHAIN_DIS (AR5315_LOCAL + 0x0104)
+#define AR5315_LB_TX_DESC_PTR (AR5315_LOCAL + 0x0200)
+
+#define AR5315_LB_RX_CHAIN_EN (AR5315_LOCAL + 0x0400)
+#define AR5315_LB_RXEN 0x01
+
+#define AR5315_LB_RX_CHAIN_DIS (AR5315_LOCAL + 0x0404)
+#define AR5315_LB_RX_DESC_PTR (AR5315_LOCAL + 0x0408)
+
+#define AR5315_LB_INT_STATUS (AR5315_LOCAL + 0x0500)
+#define AR5315_INT_TX_DESC 0x0001
+#define AR5315_INT_TX_OK 0x0002
+#define AR5315_INT_TX_ERR 0x0004
+#define AR5315_INT_TX_EOF 0x0008
+#define AR5315_INT_RX_DESC 0x0010
+#define AR5315_INT_RX_OK 0x0020
+#define AR5315_INT_RX_ERR 0x0040
+#define AR5315_INT_RX_EOF 0x0080
+#define AR5315_INT_TX_TRUNC 0x0100
+#define AR5315_INT_TX_STARVE 0x0200
+#define AR5315_INT_LB_TIMEOUT 0x0400
+#define AR5315_INT_LB_ERR 0x0800
+#define AR5315_INT_MBOX_WR 0x1000
+#define AR5315_INT_MBOX_RD 0x2000
+
+/* Bit definitions for INT MASK are the same as INT_STATUS */
+#define AR5315_LB_INT_MASK (AR5315_LOCAL + 0x0504)
+
+#define AR5315_LB_INT_EN (AR5315_LOCAL + 0x0508)
+#define AR5315_LB_MBOX (AR5315_LOCAL + 0x0600)
+
+
+
+/*
+ * IR Interface Registers
+ */
+#define AR5315_IR_PKTDATA (AR5315_IR + 0x0000)
+
+#define AR5315_IR_PKTLEN (AR5315_IR + 0x07fc) /* 0 - 63 */
+
+#define AR5315_IR_CONTROL (AR5315_IR + 0x0800)
+#define AR5315_IRCTL_TX 0x00000000 /* use as tranmitter */
+#define AR5315_IRCTL_RX 0x00000001 /* use as receiver */
+#define AR5315_IRCTL_SAMPLECLK_MASK 0x00003ffe /* Sample clk divisor mask */
+#define AR5315_IRCTL_SAMPLECLK_SHFT 1
+#define AR5315_IRCTL_OUTPUTCLK_MASK 0x03ffc000 /* Output clk divisor mask */
+#define AR5315_IRCTL_OUTPUTCLK_SHFT 14
+
+#define AR5315_IR_STATUS (AR5315_IR + 0x0804)
+#define AR5315_IRSTS_RX 0x00000001 /* receive in progress */
+#define AR5315_IRSTS_TX 0x00000002 /* transmit in progress */
+
+#define AR5315_IR_CONFIG (AR5315_IR + 0x0808)
+#define AR5315_IRCFG_INVIN 0x00000001 /* invert input polarity */
+#define AR5315_IRCFG_INVOUT 0x00000002 /* invert output polarity */
+#define AR5315_IRCFG_SEQ_START_WIN_SEL 0x00000004 /* 1 => 28, 0 => 7 */
+#define AR5315_IRCFG_SEQ_START_THRESH 0x000000f0 /* */
+#define AR5315_IRCFG_SEQ_END_UNIT_SEL 0x00000100 /* */
+#define AR5315_IRCFG_SEQ_END_UNIT_THRESH 0x00007e00 /* */
+#define AR5315_IRCFG_SEQ_END_WIN_SEL 0x00008000 /* */
+#define AR5315_IRCFG_SEQ_END_WIN_THRESH 0x001f0000 /* */
+#define AR5315_IRCFG_NUM_BACKOFF_WORDS 0x01e00000 /* */
+
+/*
+ * PCI memory constants: Memory area 1 and 2 are the same size -
+ * (twice the PCI_TLB_PAGE_SIZE). The definition of
+ * CPU_TO_PCI_MEM_SIZE is coupled with the TLB setup routine
+ * sysLib.c/sysTlbInit(), in that it assumes that 2 pages of size
+ * PCI_TLB_PAGE_SIZE are set up in the TLB for each PCI memory space.
+ */
+
+#define CPU_TO_PCI_MEM_BASE1 0xE0000000
+#define CPU_TO_PCI_MEM_SIZE1 (2*PCI_TLB_PAGE_SIZE)
+
+
+/* TLB attributes for PCI transactions */
+
+#define PCI_MMU_PAGEMASK 0x00003FFF
+#define MMU_PAGE_UNCACHED 0x00000010
+#define MMU_PAGE_DIRTY 0x00000004
+#define MMU_PAGE_VALID 0x00000002
+#define MMU_PAGE_GLOBAL 0x00000001
+#define PCI_MMU_PAGEATTRIB (MMU_PAGE_UNCACHED|MMU_PAGE_DIRTY|\
+ MMU_PAGE_VALID|MMU_PAGE_GLOBAL)
+#define PCI_MEMORY_SPACE1_VIRT 0xE0000000 /* Used for non-prefet mem */
+#define PCI_MEMORY_SPACE1_PHYS 0x80000000
+#define PCI_TLB_PAGE_SIZE 0x01000000
+#define TLB_HI_MASK 0xFFFFE000
+#define TLB_LO_MASK 0x3FFFFFFF
+#define PAGEMASK_SHIFT 11
+#define TLB_LO_SHIFT 6
+
+#define PCI_MAX_LATENCY 0xFFF /* Max PCI latency */
+
+#define HOST_PCI_DEV_ID 3
+#define HOST_PCI_MBAR0 0x10000000
+#define HOST_PCI_MBAR1 0x20000000
+#define HOST_PCI_MBAR2 0x30000000
+
+#define HOST_PCI_SDRAM_BASEADDR HOST_PCI_MBAR1
+#define PCI_DEVICE_MEM_SPACE 0x800000
+
+#define sysRegRead(phys) \
+ (*(volatile u32 *)KSEG1ADDR(phys))
+
+#define sysRegWrite(phys, val) \
+ ((*(volatile u32 *)KSEG1ADDR(phys)) = (val))
+
+#endif
diff -urN linux.old/arch/mips/ar531x/ar531xlnx.h linux.dev/arch/mips/ar531x/ar531xlnx.h
--- linux.old/arch/mips/ar531x/ar531xlnx.h 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/arch/mips/ar531x/ar531xlnx.h 2006-12-16 04:49:36.000000000 +0100
@@ -0,0 +1,74 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
+ * Copyright (C) 2006 FON Technology, SL.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ */
+
+/*
+ * This file contains definitions needed in order to compile
+ * AR531X products for linux. Definitions that are largely
+ * AR531X-specific and independent of operating system belong
+ * in ar531x.h rather than this file.
+ */
+#ifndef _AR531XLNX_H
+#define _AR531XLNX_H
+
+#include "ar531x.h"
+
+/*
+ * Board support data. The driver is required to locate
+ * and fill-in this information before passing a reference to
+ * this structure as the HAL_BUS_TAG parameter supplied to
+ * ath_hal_attach.
+ */
+struct ar531x_config {
+ const char *board; /* board config data */
+ const char *radio; /* radio config data */
+ int unit; /* unit number [0, 1] */
+ u32 tag; /* used as devid for now */
+};
+
+#define MIPS_CPU_IRQ_BASE 0x00
+#define AR531X_HIGH_PRIO 0x10
+#define AR531X_MISC_IRQ_BASE 0x20
+#define AR531X_GPIO_IRQ_BASE 0x30
+
+/* Software's idea of interrupts handled by "CPU Interrupt Controller" */
+#define AR531X_IRQ_NONE MIPS_CPU_IRQ_BASE+0
+#define AR531X_IRQ_MISC_INTRS MIPS_CPU_IRQ_BASE+2 /* C0_CAUSE: 0x0400 */
+#define AR531X_IRQ_WLAN0_INTRS MIPS_CPU_IRQ_BASE+3 /* C0_CAUSE: 0x0800 */
+#define AR531X_IRQ_ENET0_INTRS MIPS_CPU_IRQ_BASE+4 /* C0_CAUSE: 0x1000 */
+#define AR531X_IRQ_LCBUS_PCI MIPS_CPU_IRQ_BASE+6 /* C0_CAUSE: 0x4000 */
+#define AR531X_IRQ_WLAN0_POLL MIPS_CPU_IRQ_BASE+6 /* C0_CAUSE: 0x4000 */
+#define AR531X_IRQ_CPU_CLOCK MIPS_CPU_IRQ_BASE+7 /* C0_CAUSE: 0x8000 */
+
+/* Miscellaneous interrupts, which share IP6 */
+#define AR531X_MISC_IRQ_NONE AR531X_MISC_IRQ_BASE+0
+#define AR531X_MISC_IRQ_TIMER AR531X_MISC_IRQ_BASE+1
+#define AR531X_MISC_IRQ_AHB_PROC AR531X_MISC_IRQ_BASE+2
+#define AR531X_MISC_IRQ_AHB_DMA AR531X_MISC_IRQ_BASE+3
+#define AR531X_MISC_IRQ_GPIO AR531X_MISC_IRQ_BASE+4
+#define AR531X_MISC_IRQ_UART0 AR531X_MISC_IRQ_BASE+5
+#define AR531X_MISC_IRQ_UART0_DMA AR531X_MISC_IRQ_BASE+6
+#define AR531X_MISC_IRQ_WATCHDOG AR531X_MISC_IRQ_BASE+7
+#define AR531X_MISC_IRQ_LOCAL AR531X_MISC_IRQ_BASE+8
+#define AR531X_MISC_IRQ_COUNT 9
+
+/* GPIO Interrupts [0..7], share AR531X_MISC_IRQ_GPIO */
+#define AR531X_GPIO_IRQ_NONE AR531X_MISC_IRQ_BASE+0
+#define AR531X_GPIO_IRQ(n) AR531X_MISC_IRQ_BASE+(n)+1
+#define AR531X_GPIO_IRQ_COUNT 22
+
+extern struct ar531x_boarddata *ar531x_board_configuration;
+extern char *ar531x_radio_configuration;
+extern char *enet_mac_address_get(int MACUnit);
+
+#define A_DATA_CACHE_INVAL(start, length) \
+ dma_cache_inv((UINT32)(start),(length))
+
+#endif /* _AR531XLNX_H */
diff -urN linux.old/arch/mips/ar531x/devices.c linux.dev/arch/mips/ar531x/devices.c
--- linux.old/arch/mips/ar531x/devices.c 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/arch/mips/ar531x/devices.c 2006-12-16 04:46:43.000000000 +0100
@@ -0,0 +1,281 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
+ * Copyright (C) 2006 FON Technology, SL.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ */
+
+/*
+ * Platform devices for AR531x SoC.
+ */
+
+#include <linux/autoconf.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <asm/io.h>
+#include <ar531x_platform.h>
+
+#include "ar531xlnx.h"
+
+static struct resource ar531x_eth_res[] = {
+ {
+ .name = "eth_membase",
+ .flags = IORESOURCE_MEM,
+ .start = 0xb0500000,
+ .end = 0xb0502000,
+ },
+ {
+ .name = "eth_irq",
+ .flags = IORESOURCE_IRQ,
+ .start = 4,
+ .end = 4,
+ },
+};
+
+static struct ar531x_eth ar531x_eth_data = {
+ .phy = 1,
+ .mac = 0,
+ .reset_base = 0x11000004,
+ .reset_mac = 0x800,
+ .reset_phy = 0x400,
+};
+
+static struct platform_device ar531x_eth = {
+ .id = 0,
+ .name = "ar531x-eth",
+ .dev.platform_data = &ar531x_eth_data,
+ .resource = ar531x_eth_res,
+ .num_resources = ARRAY_SIZE(ar531x_eth_res)
+};
+
+static struct platform_device ar531x_wmac = {
+ .id = 0,
+ .name = "ar531x-wmac",
+ /* FIXME: add resources */
+};
+
+static struct resource ar531x_spiflash_res[] = {
+ {
+ .name = "flash_base",
+ .flags = IORESOURCE_MEM,
+ .start = 0xa8000000,
+ .end = 0xa8400000,
+ },
+ {
+ .name = "flash_regs",
+ .flags = IORESOURCE_MEM,
+ .start = 0x11300000,
+ .end = 0x11300012,
+ },
+};
+
+static struct platform_device ar531x_spiflash = {
+ .id = 0,
+ .name = "spiflash",
+ .resource = ar531x_spiflash_res,
+ .num_resources = ARRAY_SIZE(ar531x_spiflash_res)
+};
+
+static __initdata struct platform_device *ar531x_devs[] = {
+ &ar531x_eth,
+ &ar531x_wmac,
+ &ar531x_spiflash
+};
+
+
+
+static void *flash_regs;
+
+static inline __u32 spiflash_regread32(int reg)
+{
+ volatile __u32 *data = (__u32 *)(flash_regs + reg);
+
+ return (*data);
+}
+
+static inline void spiflash_regwrite32(int reg, __u32 data)
+{
+ volatile __u32 *addr = (__u32 *)(flash_regs + reg);
+
+ *addr = data;
+}
+
+#define SPI_FLASH_CTL 0x00
+#define SPI_FLASH_OPCODE 0x04
+#define SPI_FLASH_DATA 0x08
+
+static __u8 spiflash_probe(void)
+{
+ __u32 reg;
+
+ do {
+ reg = spiflash_regread32(SPI_FLASH_CTL);
+ } while (reg & SPI_CTL_BUSY);
+
+ spiflash_regwrite32(SPI_FLASH_OPCODE, 0xab);
+
+ reg = (reg & ~SPI_CTL_TX_RX_CNT_MASK) | 4 |
+ (1 << 4) | SPI_CTL_START;
+
+ spiflash_regwrite32(SPI_FLASH_CTL, reg);
+
+ do {
+ reg = spiflash_regread32(SPI_FLASH_CTL);
+ } while (reg & SPI_CTL_BUSY);
+
+ reg = (__u32) spiflash_regread32(SPI_FLASH_DATA);
+ reg &= 0xff;
+
+ return (u8) reg;
+}
+
+static u8 *find_board_config(void)
+{
+ char *addr;
+ int found = 0;
+
+ for (addr = (char *) (ar531x_spiflash_res[0].end - 0x1000);
+ addr >= (char *) (ar531x_spiflash_res[0].end - 0x30000);
+ addr -= 0x1000) {
+
+ if ( *(int *)addr == 0x35333131) {
+ /* config magic found */
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found) {
+ printk("WARNING: No board configuration data found!\n");
+ addr = NULL;
+ }
+
+ return addr;
+}
+
+static void *find_radio_config(char *board_config)
+{
+ int dataFound;
+ u32 radio_config;
+
+ /*
+ * Now find the start of Radio Configuration data, using heuristics:
+ * Search forward from Board Configuration data by 0x1000 bytes
+ * at a time until we find non-0xffffffff.
+ */
+ dataFound = 0;
+ for (radio_config = (u32) board_config + 0x1000;
+ (radio_config < (u32) ar531x_spiflash_res[0].end);
+ radio_config += 0x1000) {
+ if (*(int *)radio_config != 0xffffffff) {
+ dataFound = 1;
+ break;
+ }
+ }
+
+ if (!dataFound) { /* AR2316 relocates radio config to new location */
+ for (radio_config = (u32) board_config + 0xf8;
+ (radio_config < (u32) ar531x_spiflash_res[0].end - 0x1000 + 0xf8);
+ radio_config += 0x1000) {
+ if (*(int *)radio_config != 0xffffffff) {
+ dataFound = 1;
+ break;
+ }
+ }
+ }
+
+ if (!dataFound) {
+ printk("Could not find Radio Configuration data\n");
+ radio_config = 0;
+ }
+
+ return (u8 *) radio_config;
+}
+
+
+#define STM_8MBIT_SIGNATURE 0x13
+#define STM_16MBIT_SIGNATURE 0x14
+#define STM_32MBIT_SIGNATURE 0x15
+#define STM_64MBIT_SIGNATURE 0x16
+
+
+static void __init ar531x_init_flash(void)
+{
+ u8 sig;
+ u32 flash_size = 0;
+ unsigned int rcfg_size;
+ char *bcfg, *rcfg, *board_config, *radio_config;
+ struct ar531x_config *config;
+
+ /* probe the flash chip size */
+ flash_regs = ioremap_nocache(ar531x_spiflash_res[1].start, ar531x_spiflash_res[1].end - ar531x_spiflash_res[1].start);
+ sig = spiflash_probe();
+ iounmap(flash_regs);
+
+ switch(sig) {
+ case STM_8MBIT_SIGNATURE:
+ flash_size = 0x00100000;
+ break;
+ case STM_16MBIT_SIGNATURE:
+ flash_size = 0x00200000;
+ break;
+ case STM_32MBIT_SIGNATURE:
+ flash_size = 0x00400000;
+ break;
+ case STM_64MBIT_SIGNATURE:
+ flash_size = 0x00800000;
+ break;
+ }
+
+ if (!flash_size)
+ return;
+
+ ar531x_spiflash_res[0].end = ar531x_spiflash_res[0].start + flash_size;
+
+ /* Copy the board and radio data to RAM, because with the new
+ * spiflash driver, accessing the mapped memory directly is no
+ * longer safe */
+
+ bcfg = find_board_config();
+ if (!bcfg)
+ return;
+
+ board_config = kmalloc(0x1000, GFP_KERNEL);
+ memcpy(board_config, bcfg, 0x100);
+ ar531x_eth_data.board_config = board_config;
+
+ /* Radio config starts 0x100 bytes after board config, regardless
+ * of what the physical layout on the flash chip looks like */
+
+ rcfg = find_radio_config(bcfg);
+ if (!rcfg)
+ return;
+ printk("Radio config found at offset 0x%x\n", rcfg - bcfg);
+ radio_config = board_config + 0x100 + ((rcfg - bcfg) & 0xfff);
+ rcfg_size = 0x1000 - ((rcfg - bcfg) & 0xfff);
+ memcpy(radio_config, rcfg, rcfg_size);
+
+ config = (struct ar531x_config *) kzalloc(sizeof(struct ar531x_config), GFP_KERNEL);
+ config->board = board_config;
+ config->radio = radio_config;
+ config->unit = 0;
+ config->tag = (u_int16_t) (sysRegRead(AR5315_SREV) & REV_CHIP);
+ ar531x_wmac.dev.platform_data = config;
+}
+
+static int __init ar531x_register_devices(void)
+{
+ ar531x_init_flash();
+ return platform_add_devices(ar531x_devs, ARRAY_SIZE(ar531x_devs));
+}
+
+
+arch_initcall(ar531x_register_devices);
diff -urN linux.old/arch/mips/ar531x/gpio.c linux.dev/arch/mips/ar531x/gpio.c
--- linux.old/arch/mips/ar531x/gpio.c 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/arch/mips/ar531x/gpio.c 2006-12-16 04:49:20.000000000 +0100
@@ -0,0 +1,127 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
+ * Copyright (C) 2006 FON Technology, SL.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ */
+
+/*
+ * Support for GPIO -- General Purpose Input/Output Pins
+ * XXX: should be rewritten
+ */
+
+#include <linux/autoconf.h>
+#include <linux/kernel.h>
+#include <linux/signal.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+
+#include "ar531xlnx.h"
+
+/* GPIO Interrupt Support */
+
+/* Turn on the specified AR531X_GPIO_IRQ interrupt */
+static unsigned int
+ar531x_gpio_intr_startup(unsigned int irq)
+{
+ ar531x_gpio_intr_enable(irq);
+
+ return 0;
+}
+
+/* Turn off the specified AR531X_GPIO_IRQ interrupt */
+static void
+ar531x_gpio_intr_shutdown(unsigned int irq)
+{
+ ar531x_gpio_intr_disable(irq);
+}
+
+u32 gpioIntMask = 0;
+
+static void ar531x_gpio_intr_set_enabled(unsigned int gpio, int enabled)
+{
+ u32 reg;
+ int intnum = 0;
+ int intlevel = 2;
+
+ reg = sysRegRead(AR5315_GPIO_CR);
+ reg &= ~(GPIO_CR_M(gpio));
+ reg |= GPIO_CR_I(gpio);
+ sysRegWrite(AR5315_GPIO_CR, reg);
+ (void)sysRegRead(AR5315_GPIO_CR); /* flush write to hardware */
+
+ reg = sysRegRead(AR5315_GPIO_INT);
+
+ reg &= ~(GPIO_INT_M(intnum));
+ reg &= ~(GPIO_INT_LVL_M(intnum));
+
+ if (enabled) {
+ reg |= GPIO_INT_LVL(intlevel, intnum);
+ reg |= GPIO_INT(gpio, intnum);
+ }
+
+ sysRegWrite(AR5315_GPIO_INT, reg);
+ (void)sysRegRead(AR5315_GPIO_INT); /* flush write to hardware */
+}
+
+
+/* Enable the specified AR531X_GPIO_IRQ interrupt */
+static void
+ar531x_gpio_intr_enable(unsigned int irq)
+{
+ int gpio = irq - AR531X_GPIO_IRQ_BASE;
+
+ gpioIntMask |= (1<<gpio);
+ ar531x_gpio_intr_set_enabled(irq, 1);
+}
+
+/* Disable the specified AR531X_GPIO_IRQ interrupt */
+static void
+ar531x_gpio_intr_disable(unsigned int irq)
+{
+ int gpio = irq - AR531X_GPIO_IRQ_BASE;
+
+ gpioIntMask &= (1<<gpio);
+ ar531x_gpio_intr_set_enabled(irq, 0);
+}
+
+
+static void
+ar531x_gpio_intr_end(unsigned int irq)
+{
+ if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
+ ar531x_gpio_intr_enable(irq);
+}
+
+int ar531x_gpio_irq_base;
+
+struct hw_interrupt_type ar531x_gpio_intr_controller = {
+ .typename = "AR531X GPIO",
+ .startup = ar531x_gpio_intr_startup,
+ .shutdown = ar531x_gpio_intr_shutdown,
+ .enable = ar531x_gpio_intr_enable,
+ .disable = ar531x_gpio_intr_disable,
+ .ack = ar531x_gpio_intr_disable,
+ .end = ar531x_gpio_intr_end,
+};
+
+void
+ar531x_gpio_intr_init(int irq_base)
+{
+ int i;
+
+ for (i = irq_base; i < irq_base + AR531X_GPIO_IRQ_COUNT; i++) {
+ irq_desc[i].status = IRQ_DISABLED;
+ irq_desc[i].action = NULL;
+ irq_desc[i].depth = 1;
+ irq_desc[i].chip = &ar531x_gpio_intr_controller;
+ }
+
+ ar531x_gpio_irq_base = irq_base;
+}
+
+
diff -urN linux.old/arch/mips/ar531x/irq.c linux.dev/arch/mips/ar531x/irq.c
--- linux.old/arch/mips/ar531x/irq.c 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/arch/mips/ar531x/irq.c 2006-12-17 15:09:04.000000000 +0100
@@ -0,0 +1,312 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
+ * Copyright (C) 2006 FON Technology, SL.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ */
+
+/*
+ * Interrupt support for AR531X WiSOC.
+ */
+
+#include <linux/autoconf.h>
+#include <linux/init.h>
+#include <linux/kernel_stat.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/random.h>
+#include <linux/pm.h>
+#include <linux/delay.h>
+#include <linux/reboot.h>
+
+#include <asm/irq.h>
+#include <asm/mipsregs.h>
+#include <asm/gdb-stub.h>
+
+#include "ar531xlnx.h"
+#include <asm/irq_cpu.h>
+
+extern int setup_irq(unsigned int irq, struct irqaction *irqaction);
+
+static void ar531x_misc_intr_enable(unsigned int irq);
+static void ar531x_misc_intr_disable(unsigned int irq);
+
+
+/* Turn on the specified AR531X_MISC_IRQ interrupt */
+static unsigned int
+ar531x_misc_intr_startup(unsigned int irq)
+{
+ ar531x_misc_intr_enable(irq);
+ return 0;
+}
+
+/* Turn off the specified AR531X_MISC_IRQ interrupt */
+static void
+ar531x_misc_intr_shutdown(unsigned int irq)
+{
+ ar531x_misc_intr_disable(irq);
+}
+
+/* Enable the specified AR531X_MISC_IRQ interrupt */
+static void
+ar531x_misc_intr_enable(unsigned int irq)
+{
+ unsigned int imr;
+
+ imr = sysRegRead(AR5315_IMR);
+ switch(irq)
+ {
+ case AR531X_MISC_IRQ_TIMER:
+ imr |= IMR_TIMER;
+ break;
+
+ case AR531X_MISC_IRQ_AHB_PROC:
+ imr |= IMR_AHB;
+ break;
+
+ case AR531X_MISC_IRQ_AHB_DMA:
+ imr |= 0/* ?? */;
+ break;
+
+ case AR531X_MISC_IRQ_GPIO:
+ imr |= IMR_GPIO;
+ break;
+
+ case AR531X_MISC_IRQ_UART0:
+ imr |= IMR_UART0;
+ break;
+
+
+ case AR531X_MISC_IRQ_WATCHDOG:
+ imr |= IMR_WD;
+ break;
+
+ case AR531X_MISC_IRQ_LOCAL:
+ imr |= 0/* ?? */;
+ break;
+
+ }
+ sysRegWrite(AR5315_IMR, imr);
+ imr=sysRegRead(AR5315_IMR); /* flush write buffer */
+ //printk("enable Interrupt irq 0x%x imr 0x%x \n",irq,imr);
+
+}
+
+/* Disable the specified AR531X_MISC_IRQ interrupt */
+static void
+ar531x_misc_intr_disable(unsigned int irq)
+{
+ unsigned int imr;
+
+ imr = sysRegRead(AR5315_IMR);
+ switch(irq)
+ {
+ case AR531X_MISC_IRQ_TIMER:
+ imr &= (~IMR_TIMER);
+ break;
+
+ case AR531X_MISC_IRQ_AHB_PROC:
+ imr &= (~IMR_AHB);
+ break;
+
+ case AR531X_MISC_IRQ_AHB_DMA:
+ imr &= 0/* ?? */;
+ break;
+
+ case AR531X_MISC_IRQ_GPIO:
+ imr &= ~IMR_GPIO;
+ break;
+
+ case AR531X_MISC_IRQ_UART0:
+ imr &= (~IMR_UART0);
+ break;
+
+ case AR531X_MISC_IRQ_WATCHDOG:
+ imr &= (~IMR_WD);
+ break;
+
+ case AR531X_MISC_IRQ_LOCAL:
+ imr &= ~0/* ?? */;
+ break;
+
+ }
+ sysRegWrite(AR5315_IMR, imr);
+ sysRegRead(AR5315_IMR); /* flush write buffer */
+}
+
+static void
+ar531x_misc_intr_ack(unsigned int irq)
+{
+ ar531x_misc_intr_disable(irq);
+}
+
+static void
+ar531x_misc_intr_end(unsigned int irq)
+{
+ if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
+ ar531x_misc_intr_enable(irq);
+}
+
+struct irq_chip ar531x_misc_intr_controller = {
+ .typename = "AR531X MISC",
+ .startup = ar531x_misc_intr_startup,
+ .shutdown = ar531x_misc_intr_shutdown,
+ .enable = ar531x_misc_intr_enable,
+ .disable = ar531x_misc_intr_disable,
+ .ack = ar531x_misc_intr_ack,
+ .end = ar531x_misc_intr_end,
+};
+
+/*
+ * Determine interrupt source among interrupts that use IP6
+ */
+void
+ar531x_misc_intr_init(int irq_base)
+{
+ int i;
+
+ for (i = irq_base; i < irq_base + AR531X_MISC_IRQ_COUNT; i++) {
+ irq_desc[i].status = IRQ_DISABLED;
+ irq_desc[i].action = NULL;
+ irq_desc[i].depth = 1;
+ irq_desc[i].chip = &ar531x_misc_intr_controller;
+ }
+}
+
+/* ARGSUSED */
+irqreturn_t
+spurious_irq_handler(int cpl, void *dev_id)
+{
+ /*
+ printk("spurious_irq_handler: %d cause=0x%8.8x status=0x%8.8x\n",
+ cpl, cause_intrs, status_intrs);
+ */
+ return IRQ_NONE;
+}
+
+/* ARGSUSED */
+irqreturn_t
+spurious_misc_handler(int cpl, void *dev_id)
+{
+ /*
+ printk("spurious_misc_handler: 0x%x isr=0x%8.8x imr=0x%8.8x\n",
+ cpl, ar531x_isr, ar531x_imr);
+ */
+ return IRQ_NONE;
+}
+
+irqreturn_t
+ar531x_ahb_proc_handler(int cpl, void *dev_id)
+{
+ u32 procAddr = -1;
+ u32 proc1 = -1;
+ u32 dmaAddr = -1;
+ u32 dma1 = -1;
+ sysRegWrite(AR5315_AHB_ERR0,AHB_ERROR_DET);
+ sysRegRead(AR5315_AHB_ERR1);
+
+ printk("AHB interrupt: PROCADDR=0x%8.8x PROC1=0x%8.8x DMAADDR=0x%8.8x DMA1=0x%8.8x\n",
+ procAddr, proc1, dmaAddr, dma1);
+
+ machine_restart("AHB error"); /* Catastrophic failure */
+ return IRQ_HANDLED;
+}
+
+static struct irqaction cascade = {
+ .handler = no_action,
+ .flags = SA_INTERRUPT,
+ .name = "cascade",
+};
+
+static struct irqaction spurious_irq = {
+ .handler = spurious_irq_handler,
+ .flags = SA_INTERRUPT,
+ .name = "spurious_irq",
+};
+
+static struct irqaction spurious_misc = {
+ .handler = spurious_misc_handler,
+ .flags = SA_INTERRUPT,
+ .name = "spurious_misc",
+};
+
+static struct irqaction ar531x_ahb_proc_interrupt = {
+ .handler = ar531x_ahb_proc_handler,
+ .flags = SA_INTERRUPT,
+ .name = "ar531x_ahb_proc_interrupt",
+};
+
+/*
+ * Called when an interrupt is received, this function
+ * determines exactly which interrupt it was, and it
+ * invokes the appropriate handler.
+ *
+ * Implicitly, we also define interrupt priority by
+ * choosing which to dispatch first.
+ */
+asmlinkage void plat_irq_dispatch(void)
+{
+ int pending = read_c0_status() & read_c0_cause();
+
+ if (pending & CAUSEF_IP3)
+ do_IRQ(AR531X_IRQ_WLAN0_INTRS);
+ else if (pending & CAUSEF_IP4)
+ do_IRQ(AR531X_IRQ_ENET0_INTRS);
+ else if (pending & CAUSEF_IP2) {
+ unsigned int ar531x_misc_intrs = sysRegRead(AR5315_ISR) & sysRegRead(AR5315_IMR);
+
+ if (ar531x_misc_intrs & ISR_TIMER)
+ do_IRQ(AR531X_MISC_IRQ_TIMER);
+ else if (ar531x_misc_intrs & ISR_AHB)
+ do_IRQ(AR531X_MISC_IRQ_AHB_PROC);
+ else if (ar531x_misc_intrs & ISR_GPIO) {
+#if 0
+ int i;
+ u32 gpioIntPending;
+
+ gpioIntPending = sysRegRead(AR5315_GPIO_DI) & gpioIntMask;
+ for (i=0; i<AR531X_GPIO_IRQ_COUNT; i++) {
+ if (gpioIntPending & (1 << i))
+ do_IRQ(AR531X_GPIO_IRQ_BASE+i);
+ }
+#endif
+ sysRegWrite(AR5315_ISR, sysRegRead(AR5315_IMR) | ~ISR_GPIO);
+ } else if (ar531x_misc_intrs & ISR_UART0)
+ do_IRQ(AR531X_MISC_IRQ_UART0);
+ else if (ar531x_misc_intrs & ISR_WD)
+ do_IRQ(AR531X_MISC_IRQ_WATCHDOG);
+ else
+ do_IRQ(AR531X_MISC_IRQ_NONE);
+ } else if (pending & CAUSEF_IP7)
+ do_IRQ(AR531X_IRQ_CPU_CLOCK);
+ else
+ do_IRQ(AR531X_IRQ_NONE);
+}
+
+void __init arch_init_irq(void)
+{
+ clear_c0_status(ST0_IM);
+ mips_cpu_irq_init(0);
+
+ /* Initialize interrupt controllers */
+ ar531x_misc_intr_init(AR531X_MISC_IRQ_BASE);
+#if 0
+ ar531x_gpio_intr_init(AR531X_GPIO_IRQ_BASE);
+#endif
+ setup_irq(AR531X_IRQ_MISC_INTRS, &cascade);
+ /*
+ * AR531X_IRQ_CPU_CLOCK is setup by ar531x_timer_setup.
+ */
+
+ /* Default "spurious interrupt" handlers */
+ setup_irq(AR531X_IRQ_NONE, &spurious_irq);
+ setup_irq(AR531X_MISC_IRQ_NONE, &spurious_misc);
+ setup_irq(AR531X_MISC_IRQ_AHB_PROC, &ar531x_ahb_proc_interrupt);
+ setup_irq(AR531X_MISC_IRQ_GPIO, &cascade);
+}
diff -urN linux.old/arch/mips/ar531x/Makefile linux.dev/arch/mips/ar531x/Makefile
--- linux.old/arch/mips/ar531x/Makefile 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/arch/mips/ar531x/Makefile 2006-12-16 03:51:47.000000000 +0100
@@ -0,0 +1,18 @@
+#
+# 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.
+#
+# Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
+# Copyright (C) 2006 FON Technology, SL.
+# Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+# Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+#
+
+# Makefile for Atheros ar531x boards
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+obj-y := setup.o prom.o irq.o devices.o
diff -urN linux.old/arch/mips/ar531x/prom.c linux.dev/arch/mips/ar531x/prom.c
--- linux.old/arch/mips/ar531x/prom.c 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/arch/mips/ar531x/prom.c 2006-12-16 04:50:30.000000000 +0100
@@ -0,0 +1,50 @@
+/*
+ * 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.
+ *
+ * Copyright MontaVista Software Inc
+ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
+ * Copyright (C) 2006 FON Technology, SL.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ */
+
+/*
+ * Prom setup file for ar531x
+ */
+
+#include <linux/init.h>
+#include <linux/autoconf.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/bootmem.h>
+
+#include <asm/bootinfo.h>
+#include <asm/addrspace.h>
+
+#include "ar531xlnx.h"
+
+void __init prom_init(void)
+{
+ u32 memsize, memcfg;
+
+ mips_machgroup = MACH_GROUP_AR531X;
+ mips_machtype = MACH_ATHEROS_AP51;
+
+ memcfg = sysRegRead(AR5315_MEM_CFG);
+ memsize = 1 + ((memcfg & SDRAM_DATA_WIDTH_M) >> SDRAM_DATA_WIDTH_S);
+ memsize <<= 1 + ((memcfg & SDRAM_COL_WIDTH_M) >> SDRAM_COL_WIDTH_S);
+ memsize <<= 1 + ((memcfg & SDRAM_ROW_WIDTH_M) >> SDRAM_ROW_WIDTH_S);
+ memsize <<= 3;
+ add_memory_region(0, memsize, BOOT_MEM_RAM);
+
+ strcpy(arcs_cmdline, "console=ttyS0,9600 rootfstype=squashfs,jffs2");
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
+
diff -urN linux.old/arch/mips/ar531x/setup.c linux.dev/arch/mips/ar531x/setup.c
--- linux.old/arch/mips/ar531x/setup.c 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/arch/mips/ar531x/setup.c 2006-12-16 03:51:47.000000000 +0100
@@ -0,0 +1,198 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
+ * Copyright (C) 2006 FON Technology, SL.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ */
+
+/*
+ * Initialization for ar531x SOC.
+ */
+
+#include <linux/autoconf.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/pm.h>
+#include <linux/serial.h>
+#include <linux/serial_core.h>
+#include <linux/types.h>
+#include <linux/string.h>
+
+#include <asm/reboot.h>
+#include <asm/io.h>
+#include <asm/time.h>
+#include <asm/pgtable.h>
+#include <asm/processor.h>
+#include <asm/reboot.h>
+#include <asm/system.h>
+#include <asm/serial.h>
+
+#include "ar531xlnx.h"
+
+void
+ar531x_restart(char *command)
+{
+ for(;;) {
+ /*
+ ** Cold reset does not work,work around is to use the GPIO reset bit.
+ */
+ unsigned int reg;
+
+ /* AR2317 reset */
+ sysRegWrite(AR5315_COLD_RESET,AR5317_RESET_SYSTEM);
+
+ reg = sysRegRead(AR5315_GPIO_DO);
+ reg &= ~(1 << AR5315_RESET_GPIO);
+ sysRegWrite(AR5315_GPIO_DO, reg);
+ (void)sysRegRead(AR5315_GPIO_DO); /* flush write to hardware */
+ }
+}
+
+void
+ar531x_halt(void)
+{
+ printk(KERN_NOTICE "\n** You can safely turn off the power\n");
+ while (1);
+}
+
+void
+ar531x_power_off(void)
+{
+ ar531x_halt();
+}
+
+char *get_system_type(void)
+{
+ return "Atheros AR5315";
+}
+
+/*
+ * This table is indexed by bits 5..4 of the CLOCKCTL1 register
+ * to determine the predevisor value.
+ */
+static int __initdata CLOCKCTL1_PREDIVIDE_TABLE[4] = {
+ 1,
+ 2,
+ 4,
+ 5
+};
+
+static int __initdata PLLC_DIVIDE_TABLE[5] = {
+ 2,
+ 3,
+ 4,
+ 6,
+ 3
+};
+
+static unsigned int __init
+ar531x_sys_clk(unsigned int clockCtl)
+{
+ unsigned int pllcCtrl,cpuDiv;
+ unsigned int pllcOut,refdiv,fdiv,divby2;
+ unsigned int clkDiv;
+
+ pllcCtrl = sysRegRead(AR5315_PLLC_CTL);
+ refdiv = (pllcCtrl & PLLC_REF_DIV_M) >> PLLC_REF_DIV_S;
+ refdiv = CLOCKCTL1_PREDIVIDE_TABLE[refdiv];
+ fdiv = (pllcCtrl & PLLC_FDBACK_DIV_M) >> PLLC_FDBACK_DIV_S;
+ divby2 = (pllcCtrl & PLLC_ADD_FDBACK_DIV_M) >> PLLC_ADD_FDBACK_DIV_S;
+ divby2 += 1;
+ pllcOut = (40000000/refdiv)*(2*divby2)*fdiv;
+
+
+ /* clkm input selected */
+ switch(clockCtl & CPUCLK_CLK_SEL_M) {
+ case 0:
+ case 1:
+ clkDiv = PLLC_DIVIDE_TABLE[(pllcCtrl & PLLC_CLKM_DIV_M) >> PLLC_CLKM_DIV_S];
+ break;
+ case 2:
+ clkDiv = PLLC_DIVIDE_TABLE[(pllcCtrl & PLLC_CLKC_DIV_M) >> PLLC_CLKC_DIV_S];
+ break;
+ default:
+ pllcOut = 40000000;
+ clkDiv = 1;
+ break;
+ }
+ cpuDiv = (clockCtl & CPUCLK_CLK_DIV_M) >> CPUCLK_CLK_DIV_S;
+ cpuDiv = cpuDiv * 2 ?: 1;
+ return (pllcOut/(clkDiv * cpuDiv));
+}
+
+static inline unsigned int ar531x_cpu_frequency(void)
+{
+ return ar531x_sys_clk(sysRegRead(AR5315_CPUCLK));
+}
+
+static inline unsigned int ar531x_apb_frequency(void)
+{
+ return ar531x_sys_clk(sysRegRead(AR5315_AMBACLK));
+}
+
+
+void __init serial_setup(void)
+{
+ struct uart_port s;
+
+ memset(&s, 0, sizeof(s));
+
+ s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
+ s.iotype = UPIO_MEM;
+ s.uartclk = AR5315_UART_CLOCK_RATE;
+ s.irq = AR531X_MISC_IRQ_UART0;
+ s.regshift = 2;
+ s.mapbase = KSEG1ADDR(AR5315_UART0);
+ s.membase = (void __iomem *)s.mapbase;
+
+ early_serial_setup(&s);
+}
+
+void __init plat_timer_setup(struct irqaction *irq)
+{
+ unsigned int count;
+
+ /* Usually irq is timer_irqaction (timer_interrupt) */
+ setup_irq(AR531X_IRQ_CPU_CLOCK, irq);
+
+ /* to generate the first CPU timer interrupt */
+ count = read_c0_count();
+ write_c0_compare(count + 1000);
+}
+
+static void __init
+ar531x_time_init(void)
+{
+ mips_hpt_frequency = ar531x_cpu_frequency() / 2;
+}
+
+void __init plat_mem_setup(void)
+{
+ unsigned int config = read_c0_config();
+
+ /* Clear any lingering AHB errors */
+ write_c0_config(config & ~0x3);
+ sysRegWrite(AR5315_AHB_ERR0,AHB_ERROR_DET);
+ sysRegRead(AR5315_AHB_ERR1);
+ sysRegWrite(AR5315_WDC, WDC_IGNORE_EXPIRATION);
+
+ /* Disable data watchpoints */
+ write_c0_watchlo0(0);
+
+ board_time_init = ar531x_time_init;
+
+ _machine_restart = ar531x_restart;
+ _machine_halt = ar531x_halt;
+ pm_power_off = ar531x_power_off;
+
+ serial_setup();
+}
+
+EXPORT_SYMBOL(get_system_type);
diff -urN linux.old/arch/mips/Kconfig linux.dev/arch/mips/Kconfig
--- linux.old/arch/mips/Kconfig 2006-11-29 22:57:37.000000000 +0100
+++ linux.dev/arch/mips/Kconfig 2006-12-16 03:51:47.000000000 +0100
@@ -145,6 +145,19 @@
note that a kernel built with this option selected will not be
able to run on normal units.
+config AR531X
+ bool 'Atheros AR531x/AR231x WiSoC (EXPERIMENTAL)'
+ depends on EXPERIMENTAL
+ select DMA_NONCOHERENT
+ select IRQ_CPU
+ select SYS_HAS_CPU_MIPS32_R1
+ select HAVE_STD_PC_SERIAL_PORT
+ select AR531X_COBRA
+ select AR5315
+ select AP51
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_32BIT_KERNEL
+
config MIPS_COBALT
bool "Cobalt Server"
select DMA_NONCOHERENT
@@ -864,6 +877,18 @@
config MIPS_DISABLE_OBSOLETE_IDE
bool
+config AR531X_COBRA
+ bool
+
+config AR5315
+ bool
+
+config AR5317
+ bool
+
+config AP51
+ bool
+
#
# Endianess selection. Suffiently obscure so many users don't know what to
# answer,so we try hard to limit the available choices. Also the use of a
diff -urN linux.old/arch/mips/Makefile linux.dev/arch/mips/Makefile
--- linux.old/arch/mips/Makefile 2006-12-14 23:53:29.000000000 +0100
+++ linux.dev/arch/mips/Makefile 2006-12-16 04:45:48.000000000 +0100
@@ -267,6 +267,13 @@
load-$(CONFIG_MIPS_XXS1500) += 0xffffffff80100000
#
+# Atheros AR5312/AR2312 WiSoC
+#
+core-$(CONFIG_AR531X) += arch/mips/ar531x/
+cflags-$(CONFIG_AR531X) += -Iinclude/asm-mips/mach-atheros
+load-$(CONFIG_AR531X) += 0xffffffff80041000
+
+#
# Cobalt Server
#
core-$(CONFIG_MIPS_COBALT) += arch/mips/cobalt/
diff -urN linux.old/include/asm-mips/bootinfo.h linux.dev/include/asm-mips/bootinfo.h
--- linux.old/include/asm-mips/bootinfo.h 2006-11-29 22:57:37.000000000 +0100
+++ linux.dev/include/asm-mips/bootinfo.h 2006-12-16 03:51:47.000000000 +0100
@@ -212,6 +212,19 @@
#define MACH_GROUP_NEC_EMMA2RH 25 /* NEC EMMA2RH (was 23) */
#define MACH_NEC_MARKEINS 0 /* NEC EMMA2RH Mark-eins */
+/*
+ * Valid machtype for group AR531X
+ */
+#define MACH_GROUP_AR531X 23
+#define MACH_ATHEROS_UNUSED 0
+#define MACH_ATHEROS_AP30 1 /* AP30 */
+#define MACH_ATHEROS_AP33 2 /* AP33 */
+#define MACH_ATHEROS_AP38 3 /* AP38 */
+#define MACH_ATHEROS_AP43 4 /* AP43 */
+#define MACH_ATHEROS_AP48 5 /* AP48 */
+#define MACH_ATHEROS_PB32 6 /* PB32 */
+#define MACH_ATHEROS_AP51 7 /* AP51 */
+
#define CL_SIZE COMMAND_LINE_SIZE
const char *get_system_type(void);
diff -urN linux.old/include/asm-mips/mach-atheros/ar531x_platform.h linux.dev/include/asm-mips/mach-atheros/ar531x_platform.h
--- linux.old/include/asm-mips/mach-atheros/ar531x_platform.h 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/include/asm-mips/mach-atheros/ar531x_platform.h 2006-12-16 04:27:21.000000000 +0100
@@ -0,0 +1,14 @@
+#ifndef __AR531X_PLATFORM_H
+#define __AR531X_PLATFORM_H
+
+struct ar531x_eth {
+ int phy;
+ int mac;
+ u32 reset_base;
+ u32 reset_mac;
+ u32 reset_phy;
+ char *board_config;
+};
+
+#endif /* __AR531X_PLATFORM_H */
+
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