From 2458716a5b2269cff89f4b41afac16ac84bf6fb2 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 30 Jan 2012 13:49:34 +0000 Subject: integrator: rewrite the AP PCI driver The PCI support for the Integrator AP has apparently never been finished and I strongly suspect that it has never worked, so let's fix it. This is a list of the more or less un-splittable changes done in this driver rewrite: - Replace the register definitions stashed into the config file (!) with a copy if the register file from the Linux kernels arch/arm/include/asm/hardware/pci_v3.h - Delete the unreadable gigantic macros that perform the config accesses and replace them with copyedited code from Linux arch/arm/mach-integrator/pci_v3.c - Rewrite the rest of the setup code to use the v3_[read|write][lwb]() accessors. - Enable PCI by default in the AP board configuration. - Fix checkpatch warnings and make code more conformant. Tested-by: Will Deacon Signed-off-by: Linus Walleij --- include/configs/integratorap.h | 148 ++--------------------------------------- 1 file changed, 6 insertions(+), 142 deletions(-) (limited to 'include/configs/integratorap.h') diff --git a/include/configs/integratorap.h b/include/configs/integratorap.h index a1fdbb8..0a704cb 100644 --- a/include/configs/integratorap.h +++ b/include/configs/integratorap.h @@ -82,17 +82,7 @@ /* * Command line configuration. */ - - -#define CONFIG_CMD_IMI -#define CONFIG_CMD_BDI -#define CONFIG_CMD_BOOTD -#define CONFIG_CMD_MEMORY -#define CONFIG_CMD_FLASH -#define CONFIG_CMD_IMLS -#define CONFIG_CMD_LOADB -#define CONFIG_CMD_LOADS - +#include #define CONFIG_BOOTDELAY 2 #define CONFIG_BOOTARGS "root=/dev/mtdblock0 console=ttyAM0 console=tty" @@ -157,142 +147,16 @@ * PCI definitions */ -#ifdef CONFIG_PCI /* pci support */ -#undef CONFIG_PCI_PNP -#define CONFIG_PCI_SCAN_SHOW 1 /* show pci devices on startup */ -#define DEBUG +#define CONFIG_PCI +#define CONFIG_CMD_PCI +#define CONFIG_PCI_PNP +#define CONFIG_NET_MULTI +#define CONFIG_TULIP #define CONFIG_EEPRO100 #define CONFIG_SYS_RX_ETH_BUFFER 8 /* use 8 rx buffer on eepro100 */ -#define INTEGRATOR_BOOT_ROM_BASE 0x20000000 -#define INTEGRATOR_HDR0_SDRAM_BASE 0x80000000 - -/* PCI Base area */ -#define INTEGRATOR_PCI_BASE 0x40000000 -#define INTEGRATOR_PCI_SIZE 0x3FFFFFFF - -/* memory map as seen by the CPU on the local bus */ -#define CPU_PCI_IO_ADRS 0x60000000 /* PCI I/O space base */ -#define CPU_PCI_IO_SIZE 0x10000 - -#define CPU_PCI_CNFG_ADRS 0x61000000 /* PCI config space */ -#define CPU_PCI_CNFG_SIZE 0x1000000 - -#define PCI_MEM_BASE 0x40000000 /* 512M to xxx */ -/* unused 256M from A0000000-AFFFFFFF might be used for I2O ??? */ -#define INTEGRATOR_PCI_IO_BASE 0x60000000 /* 16M to xxx */ -/* unused (128-16)M from B1000000-B7FFFFFF */ -#define PCI_CONFIG_BASE 0x61000000 /* 16M to xxx */ -/* unused ((128-16)M - 64K) from XXX */ - -#define PCI_V3_BASE 0x62000000 - -/* V3 PCI bridge controller */ -#define V3_BASE 0x62000000 /* V360EPC registers */ - -#define PCI_ENET0_IOADDR (CPU_PCI_IO_ADRS) -#define PCI_ENET0_MEMADDR (PCI_MEM_BASE) - - -#define V3_PCI_VENDOR 0x00000000 -#define V3_PCI_DEVICE 0x00000002 -#define V3_PCI_CMD 0x00000004 -#define V3_PCI_STAT 0x00000006 -#define V3_PCI_CC_REV 0x00000008 -#define V3_PCI_HDR_CF 0x0000000C -#define V3_PCI_IO_BASE 0x00000010 -#define V3_PCI_BASE0 0x00000014 -#define V3_PCI_BASE1 0x00000018 -#define V3_PCI_SUB_VENDOR 0x0000002C -#define V3_PCI_SUB_ID 0x0000002E -#define V3_PCI_ROM 0x00000030 -#define V3_PCI_BPARAM 0x0000003C -#define V3_PCI_MAP0 0x00000040 -#define V3_PCI_MAP1 0x00000044 -#define V3_PCI_INT_STAT 0x00000048 -#define V3_PCI_INT_CFG 0x0000004C -#define V3_LB_BASE0 0x00000054 -#define V3_LB_BASE1 0x00000058 -#define V3_LB_MAP0 0x0000005E -#define V3_LB_MAP1 0x00000062 -#define V3_LB_BASE2 0x00000064 -#define V3_LB_MAP2 0x00000066 -#define V3_LB_SIZE 0x00000068 -#define V3_LB_IO_BASE 0x0000006E -#define V3_FIFO_CFG 0x00000070 -#define V3_FIFO_PRIORITY 0x00000072 -#define V3_FIFO_STAT 0x00000074 -#define V3_LB_ISTAT 0x00000076 -#define V3_LB_IMASK 0x00000077 -#define V3_SYSTEM 0x00000078 -#define V3_LB_CFG 0x0000007A -#define V3_PCI_CFG 0x0000007C -#define V3_DMA_PCI_ADR0 0x00000080 -#define V3_DMA_PCI_ADR1 0x00000090 -#define V3_DMA_LOCAL_ADR0 0x00000084 -#define V3_DMA_LOCAL_ADR1 0x00000094 -#define V3_DMA_LENGTH0 0x00000088 -#define V3_DMA_LENGTH1 0x00000098 -#define V3_DMA_CSR0 0x0000008B -#define V3_DMA_CSR1 0x0000009B -#define V3_DMA_CTLB_ADR0 0x0000008C -#define V3_DMA_CTLB_ADR1 0x0000009C -#define V3_DMA_DELAY 0x000000E0 -#define V3_MAIL_DATA 0x000000C0 -#define V3_PCI_MAIL_IEWR 0x000000D0 -#define V3_PCI_MAIL_IERD 0x000000D2 -#define V3_LB_MAIL_IEWR 0x000000D4 -#define V3_LB_MAIL_IERD 0x000000D6 -#define V3_MAIL_WR_STAT 0x000000D8 -#define V3_MAIL_RD_STAT 0x000000DA -#define V3_QBA_MAP 0x000000DC - -/* SYSTEM register bits */ -#define V3_SYSTEM_M_RST_OUT (1 << 15) -#define V3_SYSTEM_M_LOCK (1 << 14) - -/* PCI_CFG bits */ -#define V3_PCI_CFG_M_RETRY_EN (1 << 10) -#define V3_PCI_CFG_M_AD_LOW1 (1 << 9) -#define V3_PCI_CFG_M_AD_LOW0 (1 << 8) - -/* PCI MAP register bits (PCI -> Local bus) */ -#define V3_PCI_MAP_M_MAP_ADR 0xFFF00000 -#define V3_PCI_MAP_M_RD_POST_INH (1 << 15) -#define V3_PCI_MAP_M_ROM_SIZE (1 << 11 | 1 << 10) -#define V3_PCI_MAP_M_SWAP (1 << 9 | 1 << 8) -#define V3_PCI_MAP_M_ADR_SIZE 0x000000F0 -#define V3_PCI_MAP_M_REG_EN (1 << 1) -#define V3_PCI_MAP_M_ENABLE (1 << 0) - -/* 9 => 512M window size */ -#define V3_PCI_MAP_M_ADR_SIZE_512M 0x00000090 - -/* A => 1024M window size */ -#define V3_PCI_MAP_M_ADR_SIZE_1024M 0x000000A0 - -/* LB_BASE register bits (Local bus -> PCI) */ -#define V3_LB_BASE_M_MAP_ADR 0xFFF00000 -#define V3_LB_BASE_M_SWAP (1 << 8 | 1 << 9) -#define V3_LB_BASE_M_ADR_SIZE 0x000000F0 -#define V3_LB_BASE_M_PREFETCH (1 << 3) -#define V3_LB_BASE_M_ENABLE (1 << 0) - -/* PCI COMMAND REGISTER bits */ -#define V3_COMMAND_M_FBB_EN (1 << 9) -#define V3_COMMAND_M_SERR_EN (1 << 8) -#define V3_COMMAND_M_PAR_EN (1 << 6) -#define V3_COMMAND_M_MASTER_EN (1 << 2) -#define V3_COMMAND_M_MEM_EN (1 << 1) -#define V3_COMMAND_M_IO_EN (1 << 0) - -#define INTEGRATOR_SC_BASE 0x11000000 -#define INTEGRATOR_SC_PCIENABLE_OFFSET 0x18 -#define INTEGRATOR_SC_PCIENABLE \ - (INTEGRATOR_SC_BASE + INTEGRATOR_SC_PCIENABLE_OFFSET) -#endif /* CONFIG_PCI */ /*----------------------------------------------------------------------- * There are various dependencies on the core module (CM) fitted * Users should refer to their CM user guide -- cgit v1.1