From 53e336e9ffc51035bdc4e5867631b3378761b4df Mon Sep 17 00:00:00 2001 From: Markus Klotzbuecher Date: Mon, 27 Nov 2006 11:43:09 +0100 Subject: [PATCH 1/4] Modified the mpc5xxx and the ppc4xx cpu to use the generic OHCI driver and adapted board configs TQM5200 and yosemite accordingly. This commit also makes the maximum number of root hub ports configurable (CFG_USB_OHCI_MAX_ROOT_PORTS). --- cpu/mpc5xxx/Makefile | 2 +- cpu/ppc4xx/Makefile | 3 ++- drivers/usb_ohci.c | 13 +++++++++++-- drivers/usb_ohci.h | 13 +++++++++++-- include/configs/TQM5200.h | 7 +++++++ include/configs/delta.h | 1 + include/configs/mp2usb.h | 1 + include/configs/trab.h | 1 + include/configs/yosemite.h | 6 ++++++ 9 files changed, 41 insertions(+), 6 deletions(-) diff --git a/cpu/mpc5xxx/Makefile b/cpu/mpc5xxx/Makefile index a97b62517..94f82b225 100644 --- a/cpu/mpc5xxx/Makefile +++ b/cpu/mpc5xxx/Makefile @@ -28,7 +28,7 @@ LIB = lib$(CPU).a START = start.o ASOBJS = io.o firmware_sc_task_bestcomm.impl.o firmware_sc_task.impl.o OBJS = i2c.o traps.o cpu.o cpu_init.o fec.o ide.o interrupts.o \ - loadtask.o pci_mpc5200.o serial.o speed.o usb_ohci.o + loadtask.o pci_mpc5200.o serial.o speed.o usb_ohci.o usb.o all: .depend $(START) $(ASOBJS) $(LIB) diff --git a/cpu/ppc4xx/Makefile b/cpu/ppc4xx/Makefile index c56345700..ca68599f7 100644 --- a/cpu/ppc4xx/Makefile +++ b/cpu/ppc4xx/Makefile @@ -31,7 +31,8 @@ COBJS = 405gp_pci.o 4xx_enet.o \ bedbug_405.o commproc.o \ cpu.o cpu_init.o i2c.o interrupts.o \ miiphy.o sdram.o serial.o \ - spd_sdram.o speed.o traps.o usb_ohci.o usbdev.o + spd_sdram.o speed.o traps.o \ + usb_ohci.o usbdev.o usb.o OBJS = $(AOBJS) $(COBJS) diff --git a/drivers/usb_ohci.c b/drivers/usb_ohci.c index 9b3ca1232..be1a615eb 100644 --- a/drivers/usb_ohci.c +++ b/drivers/usb_ohci.c @@ -45,6 +45,7 @@ #ifdef CONFIG_USB_OHCI +/* mk: are these really required? */ #if defined(CONFIG_S3C2400) # include #elif defined(CONFIG_S3C2410) @@ -53,6 +54,8 @@ # include #elif defined(CONFIG_CPU_MONAHANS) # include +#elif defined(CONFIG_MPC5200) +# include #endif #include @@ -557,8 +560,10 @@ static int ep_link (ohci_t *ohci, ed_t *edi) * the link from the ed still points to another operational ed or 0 * so the HC can eventually finish the processing of the unlinked ed */ -static int ep_unlink (ohci_t *ohci, ed_t *ed) +static int ep_unlink (ohci_t *ohci, ed_t *edi) { + volatile ed_t *ed = edi; + ed->hwINFO |= m32_swap (OHCI_ED_SKIP); switch (ed->type) { @@ -825,6 +830,9 @@ static td_t * dl_reverse_done_list (ohci_t *ohci) } else td_list->ed->hwHeadP &= m32_swap (0xfffffff2); } +#ifdef CONFIG_MPC5200 + td_list->hwNextTD = 0; +#endif } td_list->next_dl_td = td_rev; @@ -1448,7 +1456,8 @@ static int hc_reset (ohci_t *ohci) readl(&ohci->regs->control)); /* Reset USB (needed by some controllers) */ - writel (0, &ohci->regs->control); + ohci->hc_control = 0; + writel (ohci->hc_control, &ohci->regs->control); /* HC Reset requires max 10 us delay */ writel (OHCI_HCR, &ohci->regs->cmdstatus); diff --git a/drivers/usb_ohci.h b/drivers/usb_ohci.h index 68dd4ecaf..95fbc4465 100644 --- a/drivers/usb_ohci.h +++ b/drivers/usb_ohci.h @@ -113,7 +113,9 @@ struct td { __u32 hwNextTD; /* Next TD Pointer */ __u32 hwBE; /* Memory Buffer End Pointer */ +/* #ifndef CONFIG_MPC5200 /\* this seems wrong *\/ */ __u16 hwPSW[MAXPSW]; +/* #endif */ __u8 unused; __u8 index; struct ed *ed; @@ -137,8 +139,13 @@ typedef struct td td_t; #define NUM_INTS 32 /* part of the OHCI standard */ struct ohci_hcca { __u32 int_table[NUM_INTS]; /* Interrupt ED table */ +#if defined(CONFIG_MPC5200) + __u16 pad1; /* set to 0 on each frame_no change */ + __u16 frame_no; /* current frame number */ +#else __u16 frame_no; /* current frame number */ __u16 pad1; /* set to 0 on each frame_no change */ +#endif __u32 done_head; /* info returned for an interrupt */ u8 reserved_for_hc[116]; } __attribute((aligned(256))); @@ -147,7 +154,9 @@ struct ohci_hcca { /* * Maximum number of root hub ports. */ -#define MAX_ROOT_PORTS 3 /* maximum OHCI root hub ports */ +#ifndef CFG_USB_OHCI_MAX_ROOT_PORTS +# error "CFG_USB_OHCI_MAX_ROOT_PORTS undefined!" +#endif /* * This is the structure of the OHCI controller's memory mapped I/O @@ -181,7 +190,7 @@ struct ohci_regs { __u32 a; __u32 b; __u32 status; - __u32 portstatus[MAX_ROOT_PORTS]; + __u32 portstatus[CFG_USB_OHCI_MAX_ROOT_PORTS]; } roothub; } __attribute((aligned(32))); diff --git a/include/configs/TQM5200.h b/include/configs/TQM5200.h index be83b6767..832dcdde5 100644 --- a/include/configs/TQM5200.h +++ b/include/configs/TQM5200.h @@ -128,6 +128,13 @@ #define CONFIG_USB_OHCI #define ADD_USB_CMD CFG_CMD_USB | CFG_CMD_FAT #define CONFIG_USB_STORAGE + +#undef CFG_USB_OHCI_BOARD_INIT +#define CFG_USB_OHCI_CPU_INIT +#define CFG_USB_OHCI_REGS_BASE MPC5XXX_USB +#define CFG_USB_OHCI_SLOT_NAME "mpc5200" +#define CFG_USB_OHCI_MAX_ROOT_PORTS 15 + #else #define ADD_USB_CMD 0 #endif diff --git a/include/configs/delta.h b/include/configs/delta.h index fea821ab9..0617ad864 100644 --- a/include/configs/delta.h +++ b/include/configs/delta.h @@ -111,6 +111,7 @@ #define CFG_USB_OHCI_CPU_INIT 1 #define CFG_USB_OHCI_REGS_BASE OHCI_REGS_BASE #define CFG_USB_OHCI_SLOT_NAME "delta" +#define CFG_USB_OHCI_MAX_ROOT_PORTS 3 #define LITTLEENDIAN 1 /* used by usb_ohci.c */ diff --git a/include/configs/mp2usb.h b/include/configs/mp2usb.h index edb20f8d8..d182d4948 100644 --- a/include/configs/mp2usb.h +++ b/include/configs/mp2usb.h @@ -111,6 +111,7 @@ #define CFG_USB_OHCI_CPU_INIT 1 #define CFG_USB_OHCI_REGS_BASE AT91_USB_HOST_BASE #define CFG_USB_OHCI_SLOT_NAME "at91rm9200" +#define CFG_USB_OHCI_MAX_ROOT_PORTS 15 #undef CONFIG_HARD_I2C diff --git a/include/configs/trab.h b/include/configs/trab.h index ae979475b..33617cdcd 100644 --- a/include/configs/trab.h +++ b/include/configs/trab.h @@ -88,6 +88,7 @@ #define CFG_USB_OHCI_CPU_INIT 1 #define CFG_USB_OHCI_REGS_BASE S3C24X0_USB_HOST_BASE #define CFG_USB_OHCI_SLOT_NAME "s3c2400" +#define CFG_USB_OHCI_MAX_ROOT_PORTS 15 /* * Size of malloc() pool diff --git a/include/configs/yosemite.h b/include/configs/yosemite.h index a81cf34f1..e6a02c631 100644 --- a/include/configs/yosemite.h +++ b/include/configs/yosemite.h @@ -216,6 +216,12 @@ #define CONFIG_USB_OHCI #define CONFIG_USB_STORAGE +#undef CFG_USB_OHCI_BOARD_INIT +#define CFG_USB_OHCI_CPU_INIT 1 +#define CFG_USB_OHCI_REGS_BASE (CFG_PERIPHERAL_BASE | 0x1000) +#define CFG_USB_OHCI_SLOT_NAME "ppc440" +#define CFG_USB_OHCI_MAX_ROOT_PORTS 15 + /*Comment this out to enable USB 1.1 device*/ #define USB_2_0_DEVICE #endif /*CONFIG_440EP*/ From 7b59b3c7a8ce2e4b567abf99c1cd667bf35b9418 Mon Sep 17 00:00:00 2001 From: Markus Klotzbuecher Date: Mon, 27 Nov 2006 11:44:58 +0100 Subject: [PATCH 2/4] Introduced the configuration option CONFIG_USB_OHCI_NEW in order to be able to choose between the old and the generic OHCI drivers. --- board/trab/auto_update.c | 2 +- cpu/arm920t/at91rm9200/usb.c | 2 +- cpu/arm920t/s3c24x0/usb.c | 2 +- cpu/pxa/usb.c | 2 +- drivers/usb_ohci.c | 4 ++-- include/configs/TQM5200.h | 2 +- include/configs/delta.h | 2 +- include/configs/mp2usb.h | 2 +- include/configs/trab.h | 2 +- include/configs/yosemite.h | 2 +- include/usb.h | 2 +- 11 files changed, 12 insertions(+), 12 deletions(-) diff --git a/board/trab/auto_update.c b/board/trab/auto_update.c index d2c8d44a7..7684499c2 100644 --- a/board/trab/auto_update.c +++ b/board/trab/auto_update.c @@ -34,7 +34,7 @@ #ifdef CONFIG_AUTO_UPDATE -#ifndef CONFIG_USB_OHCI +#ifndef CONFIG_USB_OHCI_NEW #error "must define CONFIG_USB_OHCI" #endif diff --git a/cpu/arm920t/at91rm9200/usb.c b/cpu/arm920t/at91rm9200/usb.c index 98e3cdd58..366262e4c 100644 --- a/cpu/arm920t/at91rm9200/usb.c +++ b/cpu/arm920t/at91rm9200/usb.c @@ -23,7 +23,7 @@ #include -#if defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) +#if defined(CONFIG_USB_OHCI_NEW) && defined(CFG_USB_OHCI_CPU_INIT) # ifdef CONFIG_AT91RM9200 #include diff --git a/cpu/arm920t/s3c24x0/usb.c b/cpu/arm920t/s3c24x0/usb.c index 4bc7961a0..ef5d5bf71 100644 --- a/cpu/arm920t/s3c24x0/usb.c +++ b/cpu/arm920t/s3c24x0/usb.c @@ -23,7 +23,7 @@ #include -#if defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) +#if defined(CONFIG_USB_OHCI_NEW) && defined(CFG_USB_OHCI_CPU_INIT) # if defined(CONFIG_S3C2400) || defined(CONFIG_S3C2410) #if defined(CONFIG_S3C2400) diff --git a/cpu/pxa/usb.c b/cpu/pxa/usb.c index bff5bfb6a..5d273cb35 100644 --- a/cpu/pxa/usb.c +++ b/cpu/pxa/usb.c @@ -23,7 +23,7 @@ #include -#if defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) +#if defined(CONFIG_USB_OHCI_NEW) && defined(CFG_USB_OHCI_CPU_INIT) # ifdef CONFIG_CPU_MONAHANS #include diff --git a/drivers/usb_ohci.c b/drivers/usb_ohci.c index be1a615eb..482633fc6 100644 --- a/drivers/usb_ohci.c +++ b/drivers/usb_ohci.c @@ -43,7 +43,7 @@ #include /* #include no PCI on the S3C24X0 */ -#ifdef CONFIG_USB_OHCI +#ifdef CONFIG_USB_OHCI_NEW /* mk: are these really required? */ #if defined(CONFIG_S3C2400) @@ -1756,4 +1756,4 @@ int usb_lowlevel_stop(void) return 0; } -#endif /* CONFIG_USB_OHCI */ +#endif /* CONFIG_USB_OHCI_NEW */ diff --git a/include/configs/TQM5200.h b/include/configs/TQM5200.h index 832dcdde5..6c8712b68 100644 --- a/include/configs/TQM5200.h +++ b/include/configs/TQM5200.h @@ -125,7 +125,7 @@ /* USB */ #ifdef CONFIG_STK52XX -#define CONFIG_USB_OHCI +#define CONFIG_USB_OHCI_NEW #define ADD_USB_CMD CFG_CMD_USB | CFG_CMD_FAT #define CONFIG_USB_STORAGE diff --git a/include/configs/delta.h b/include/configs/delta.h index 0617ad864..4038f2196 100644 --- a/include/configs/delta.h +++ b/include/configs/delta.h @@ -103,7 +103,7 @@ #endif /* USB */ -#define CONFIG_USB_OHCI 1 +#define CONFIG_USB_OHCI_NEW 1 #define CONFIG_USB_STORAGE 1 #define CONFIG_DOS_PARTITION 1 diff --git a/include/configs/mp2usb.h b/include/configs/mp2usb.h index d182d4948..2cf78a3b1 100644 --- a/include/configs/mp2usb.h +++ b/include/configs/mp2usb.h @@ -101,7 +101,7 @@ #undef CONFIG_MODEM_SUPPORT /* disable modem initialization stuff */ -#define CONFIG_USB_OHCI 1 +#define CONFIG_USB_OHCI_NEW 1 #define CONFIG_USB_KEYBOARD 1 #define CONFIG_USB_STORAGE 1 #define CONFIG_DOS_PARTITION 1 diff --git a/include/configs/trab.h b/include/configs/trab.h index 33617cdcd..acf86d08a 100644 --- a/include/configs/trab.h +++ b/include/configs/trab.h @@ -80,7 +80,7 @@ #define CFG_EEPROM_PAGE_WRITE_DELAY_MS 10 /* USB stuff */ -#define CONFIG_USB_OHCI 1 +#define CONFIG_USB_OHCI_NEW 1 #define CONFIG_USB_STORAGE 1 #define CONFIG_DOS_PARTITION 1 diff --git a/include/configs/yosemite.h b/include/configs/yosemite.h index e6a02c631..7f434e93f 100644 --- a/include/configs/yosemite.h +++ b/include/configs/yosemite.h @@ -213,7 +213,7 @@ #ifdef CONFIG_440EP /* USB */ -#define CONFIG_USB_OHCI +#define CONFIG_USB_OHCI_NEW #define CONFIG_USB_STORAGE #undef CFG_USB_OHCI_BOARD_INIT diff --git a/include/usb.h b/include/usb.h index bf7155404..fafac8934 100644 --- a/include/usb.h +++ b/include/usb.h @@ -169,7 +169,7 @@ struct usb_device { * this is how the lowlevel part communicate with the outer world */ -#if defined(CONFIG_USB_UHCI) || defined(CONFIG_USB_OHCI) || defined (CONFIG_USB_SL811HS) +#if defined(CONFIG_USB_UHCI) || defined(CONFIG_USB_OHCI) || defined (CONFIG_USB_SL811HS) || defined(CONFIG_USB_OHCI_NEW) int usb_lowlevel_init(void); int usb_lowlevel_stop(void); int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer,int transfer_len); From ae3b770e4eae8e98b6e9e29662e18c47fdf0171f Mon Sep 17 00:00:00 2001 From: Markus Klotzbuecher Date: Mon, 27 Nov 2006 11:46:46 +0100 Subject: [PATCH 3/4] Fix some endianness issues related to the generic ohci driver --- drivers/usb_ohci.c | 60 ++++++++++++++++++++++++++++++++------- include/configs/IceCube.h | 9 +++++- include/usb.h | 15 ++++++---- 3 files changed, 66 insertions(+), 18 deletions(-) diff --git a/drivers/usb_ohci.c b/drivers/usb_ohci.c index 482633fc6..c5e4c38ef 100644 --- a/drivers/usb_ohci.c +++ b/drivers/usb_ohci.c @@ -62,15 +62,20 @@ #include #include "usb_ohci.h" -#undef S3C24X0_merge +#define S3C24X0_merge #if defined(CONFIG_ARM920T) || \ defined(CONFIG_S3C2400) || \ - defined(CONFIG_S3C2410) + defined(CONFIG_S3C2410) || \ + defined(CONFIG_440EP) || \ + defined(CONFIG_MPC5200) # define OHCI_USE_NPS /* force NoPowerSwitching mode */ #endif #undef OHCI_VERBOSE_DEBUG /* not always helpful */ +#undef DEBUG +#undef SHOW_INFO +#undef OHCI_FILL_TRACE /* For initializing controller (mask in an HCFS mode too) */ #define OHCI_CONTROL_INIT \ @@ -95,8 +100,13 @@ #define info(format, arg...) do {} while(0) #endif -#define m16_swap(x) swap_16(x) -#define m32_swap(x) swap_32(x) +#if defined(CONFIG_440EP) || defined(CONFIG_MPC5200) +# define m16_swap(x) (x) +# define m32_swap(x) (x) +#else +# define m16_swap(x) swap_16(x) +# define m32_swap(x) swap_32(x) +#endif /* global ohci_t */ static ohci_t gohci; @@ -523,7 +533,7 @@ static int ep_link (ohci_t *ohci, ed_t *edi) if (ohci->ed_controltail == NULL) { writel (ed, &ohci->regs->ed_controlhead); } else { - ohci->ed_controltail->hwNextED = m32_swap (ed); + ohci->ed_controltail->hwNextED = m32_swap ((unsigned long)ed); } ed->ed_prev = ohci->ed_controltail; if (!ohci->ed_controltail && !ohci->ed_rm_list[0] && @@ -539,7 +549,7 @@ static int ep_link (ohci_t *ohci, ed_t *edi) if (ohci->ed_bulktail == NULL) { writel (ed, &ohci->regs->ed_bulkhead); } else { - ohci->ed_bulktail->hwNextED = m32_swap (ed); + ohci->ed_bulktail->hwNextED = m32_swap ((unsigned long)ed); } ed->ed_prev = ohci->ed_bulktail; if (!ohci->ed_bulktail && !ohci->ed_rm_list[0] && @@ -635,7 +645,7 @@ static ed_t * ep_add_ed (struct usb_device *usb_dev, unsigned long pipe) ed->hwINFO = m32_swap (OHCI_ED_SKIP); /* skip ed */ /* dummy td; end of td list for ed */ td = td_alloc (usb_dev); - ed->hwTailP = m32_swap (td); + ed->hwTailP = m32_swap ((unsigned long)td); ed->hwHeadP = ed->hwTailP; ed->state = ED_UNLINK; ed->type = usb_pipetype (pipe); @@ -693,12 +703,12 @@ static void td_fill (ohci_t *ohci, unsigned int info, data = 0; td->hwINFO = m32_swap (info); - td->hwCBP = m32_swap (data); + td->hwCBP = m32_swap ((unsigned long)data); if (data) - td->hwBE = m32_swap (data + len - 1); + td->hwBE = m32_swap ((unsigned long)(data + len - 1)); else td->hwBE = 0; - td->hwNextTD = m32_swap (td_pt); + td->hwNextTD = m32_swap ((unsigned long)td_pt); #ifndef S3C24X0_merge td->hwPSW [0] = m16_swap (((__u32)data & 0x0FFF) | 0xE000); #endif @@ -875,7 +885,12 @@ static int dl_done_list (ohci_t *ohci, td_t *td_list) /* see if this done list makes for all TD's of current URB, * and mark the URB finished if so */ if (++(lurb_priv->td_cnt) == lurb_priv->length) { +#if 1 + if ((ed->state & (ED_OPER | ED_UNLINK)) && + (lurb_priv->state != URB_DEL)) +#else if ((ed->state & (ED_OPER | ED_UNLINK))) +#endif urb_finished = 1; else dbg("dl_done_list: strange.., ED state %x, ed->state\n"); @@ -1068,9 +1083,15 @@ pkt_print(dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe)); } bmRType_bReq = cmd->requesttype | (cmd->request << 8); +#if defined(CONFIG_440EP) || defined(CONFIG_MPC5200) + wValue = __swap_16(cmd->value); + wIndex = __swap_16(cmd->index); + wLength = __swap_16(cmd->length); +#else wValue = m16_swap (cmd->value); wIndex = m16_swap (cmd->index); wLength = m16_swap (cmd->length); +#endif /* CONFIG_440EP || CONFIG_MPC5200 */ info("Root-Hub: adr: %2x cmd(%1x): %08x %04x %04x %04x", dev->devnum, 8, bmRType_bReq, wValue, wIndex, wLength); @@ -1084,6 +1105,20 @@ pkt_print(dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe)); RH_OTHER | RH_CLASS almost ever means HUB_PORT here */ +#if defined(CONFIG_440EP) || defined(CONFIG_MPC5200) + case RH_GET_STATUS: + *(__u16 *) data_buf = __swap_16(1); OK (2); + case RH_GET_STATUS | RH_INTERFACE: + *(__u16 *) data_buf = __swap_16(0); OK (2); + case RH_GET_STATUS | RH_ENDPOINT: + *(__u16 *) data_buf = __swap_16(0); OK (2); + case RH_GET_STATUS | RH_CLASS: + *(__u32 *) data_buf = __swap_32( + RD_RH_STAT & ~(RH_HS_CRWE | RH_HS_DRWE)); + OK (4); + case RH_GET_STATUS | RH_OTHER | RH_CLASS: + *(__u32 *) data_buf = __swap_32(RD_RH_PORTSTAT); OK (4); +#else case RH_GET_STATUS: *(__u16 *) data_buf = m16_swap (1); OK (2); case RH_GET_STATUS | RH_INTERFACE: @@ -1096,6 +1131,7 @@ pkt_print(dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe)); OK (4); case RH_GET_STATUS | RH_OTHER | RH_CLASS: *(__u32 *) data_buf = m32_swap (RD_RH_PORTSTAT); OK (4); +#endif /* CONFIG_440EP || CONFIG_MPC5200 */ case RH_CLEAR_FEATURE | RH_ENDPOINT: switch (wValue) { @@ -1294,8 +1330,10 @@ int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer, return -1; } +#if 0 wait_ms(10); /* ohci_dump_status(&gohci); */ +#endif /* allow more time for a BULK device to react - some are slow */ #define BULK_TO 5000 /* timeout in milliseconds */ @@ -1337,6 +1375,7 @@ int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer, err("CTL:TIMEOUT "); #ifdef S3C24X0_merge dbg("submit_common_msg: TO status %x\n", stat); + stat = USB_ST_CRC_ERR; urb_finished = 1; #endif stat = USB_ST_CRC_ERR; @@ -1755,5 +1794,4 @@ int usb_lowlevel_stop(void) return 0; } - #endif /* CONFIG_USB_OHCI_NEW */ diff --git a/include/configs/IceCube.h b/include/configs/IceCube.h index 1152f838d..8753b9ff6 100644 --- a/include/configs/IceCube.h +++ b/include/configs/IceCube.h @@ -94,9 +94,16 @@ /* USB */ #if 1 -#define CONFIG_USB_OHCI +#define CONFIG_USB_OHCI_NEW #define ADD_USB_CMD CFG_CMD_USB | CFG_CMD_FAT #define CONFIG_USB_STORAGE + +#undef CFG_USB_OHCI_BOARD_INIT +#define CFG_USB_OHCI_CPU_INIT +#define CFG_USB_OHCI_REGS_BASE MPC5XXX_USB +#define CFG_USB_OHCI_SLOT_NAME "mpc5200" +#define CFG_USB_OHCI_MAX_ROOT_PORTS 15 + #else #define ADD_USB_CMD 0 #endif diff --git a/include/usb.h b/include/usb.h index fafac8934..419a7e364 100644 --- a/include/usb.h +++ b/include/usb.h @@ -230,16 +230,12 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate); /* big endian -> little endian conversion */ /* some CPUs are already little endian e.g. the ARM920T */ -#ifdef LITTLEENDIAN -#define swap_16(x) ((unsigned short)(x)) -#define swap_32(x) ((unsigned long)(x)) -#else -#define swap_16(x) \ +#define __swap_16(x) \ ({ unsigned short x_ = (unsigned short)x; \ (unsigned short)( \ ((x_ & 0x00FFU) << 8) | ((x_ & 0xFF00U) >> 8) ); \ }) -#define swap_32(x) \ +#define __swap_32(x) \ ({ unsigned long x_ = (unsigned long)x; \ (unsigned long)( \ ((x_ & 0x000000FFUL) << 24) | \ @@ -247,6 +243,13 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate); ((x_ & 0x00FF0000UL) >> 8) | \ ((x_ & 0xFF000000UL) >> 24) ); \ }) + +#ifdef LITTLEENDIAN +# define swap_16(x) (x) +# define swap_32(x) (x) +#else +# define swap_16(x) __swap_16(x) +# define swap_32(x) __swap_32(x) #endif /* LITTLEENDIAN */ /* From 58b485776698c3d71ec5a215e392123b4c15afa3 Mon Sep 17 00:00:00 2001 From: Markus Klotzbuecher Date: Mon, 27 Nov 2006 11:51:21 +0100 Subject: [PATCH 4/4] Add a small README with information on the generic ohci driver. --- doc/README.generic_usb_ohci | 43 +++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 doc/README.generic_usb_ohci diff --git a/doc/README.generic_usb_ohci b/doc/README.generic_usb_ohci new file mode 100644 index 000000000..017c69ab0 --- /dev/null +++ b/doc/README.generic_usb_ohci @@ -0,0 +1,43 @@ +Notes on the the generic USB-OHCI driver +======================================== + +This driver (drivers/usb_ohci.[ch]) is the result of the merge of +various existing OHCI drivers that were basically identical beside +cpu/board dependant initalization. This initalization has been moved +into cpu/board directories and are called via the hooks below. + +Configuration options +---------------------- + +CONFIG_USB_OHCI_NEW: enable the new OHCI driver + +CFG_USB_OHCI_BOARD_INIT: call the board dependant hooks: + + - extern int usb_board_init(void); + - extern int usb_board_stop(void); + - extern int usb_cpu_init_fail(void); + +CFG_USB_OHCI_CPU_INIT: call the cpu dependant hooks: + + - extern int usb_cpu_init(void); + - extern int usb_cpu_stop(void); + - extern int usb_cpu_init_fail(void); + +CFG_USB_OHCI_REGS_BASE: defines the base address of the OHCI registers + +CFG_USB_OHCI_SLOT_NAME: slot name + +CFG_USB_OHCI_MAX_ROOT_PORTS: maximal number of ports of the root hub. + + +Endianness issues +------------------ + +The LITTLEENDIAN #define determines if the 'swap_16' and 'swap_32' +macros do byte swapping or not. But some cpus OHCI-controllers such as +ppc4xx and mpc5xxx operate in little endian mode, so some extra ifdefs +were necessary to make this work. + + + +