From cc61f0391524ec6a71cf740b65c50f3d3ee934dd Mon Sep 17 00:00:00 2001 From: Amaury Pouly Date: Wed, 19 May 2010 08:33:50 +0000 Subject: as3525v2: add partial usb init code git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26157 a1c6a512-1295-4272-9138-f99709370657 --- firmware/target/arm/as3525/usb-drv-as3525v2.c | 185 ++++++++++++++++++++++++-- firmware/target/arm/as3525/usb-drv-as3525v2.h | 109 ++++++++++++++- 2 files changed, 282 insertions(+), 12 deletions(-) diff --git a/firmware/target/arm/as3525/usb-drv-as3525v2.c b/firmware/target/arm/as3525/usb-drv-as3525v2.c index 83a5701a11..369a838c65 100644 --- a/firmware/target/arm/as3525/usb-drv-as3525v2.c +++ b/firmware/target/arm/as3525/usb-drv-as3525v2.c @@ -48,6 +48,9 @@ struct usb_endpoint static struct usb_endpoint endpoints[USB_NUM_ENDPOINTS*2]; #endif +static unsigned int usb_num_in_ep = 0; +static unsigned int usb_num_out_ep = 0; + void usb_attach(void) { usb_enable(true); @@ -102,6 +105,51 @@ static void as3525v2_connect(void) usb_delay(); } +static void usb_enable_common_interrupts(void) +{ + /* Clear any pending otg interrupt */ + USB_GOTGINT = 0xffffffff; + /* Clear any pending interrupt */ + USB_GINTSTS = 0Xffffffff; + /* Enable interrupts */ + USB_GINTMSK |= USB_GINTMSK_modemismatch | + USB_GINTMSK_otgintr | + USB_GINTMSK_rxstsqlvl | /* for dma */ + USB_GINTMSK_conidstschng | + USB_GINTMSK_wkupintr | + USB_GINTMSK_disconnect | + USB_GINTMSK_usbsuspend | + USB_GINTMSK_sessreqintr; +} + +static void usb_flush_tx_fifos(int nums) +{ + unsigned int i = 0; + + USB_GRSTCTL = (USB_GRSTCTL & (~USB_GRSTCTL_txfnum_bits)) + | (nums << USB_GRSTCTL_txfnum_bit_pos) + | USB_GRSTCTL_txfflsh_flush; + while(USB_GRSTCTL & USB_GRSTCTL_txfflsh_flush && i < 0x300) + i++; + if(USB_GRSTCTL & USB_GRSTCTL_txfflsh_flush) + panicf("usb: hang of flush tx fifos (%x)", nums); + /* wait 3 phy clocks */ + sleep(1); +} + +static void usb_flush_rx_fifo(void) +{ + unsigned int i = 0; + + USB_GRSTCTL |= USB_GRSTCTL_rxfflsh_flush; + while(USB_GRSTCTL & USB_GRSTCTL_rxfflsh_flush && i < 0x300) + i++; + if(USB_GRSTCTL & USB_GRSTCTL_rxfflsh_flush) + panicf("usb: hang of flush rx fifo"); + /* wait 3 phy clocks */ + sleep(1); +} + static void core_reset(void) { unsigned int i = 0; @@ -118,26 +166,137 @@ static void core_reset(void) i++; if(USB_GRSTCTL & USB_GRSTCTL_csftrst) - { - logf("oops, usb core soft reset hang :("); - } + panicf("oops, usb core soft reset hang :("); /* Wait for 3 PHY Clocks */ /*mdelay(100);*/ sleep(1); - logf("%ld endpoints", USB_GHWCFG2_NUM_EP); - for(i = 0; i < USB_GHWCFG2_NUM_EP; i++) - logf(" EP%d: IN=%ld OUT=%ld", i, USB_GHWCFG1_IN_EP(i), USB_GHWCFG1_OUT_EP(i)); + /* Check hardware capabilityies */ + if(USB_GHWCFG2_ARCH != USB_INT_DMA_ARCH) + panicf("usb: wrong architecture (%ld)", USB_GHWCFG2_ARCH); + if(USB_GHWCFG2_HS_PHY_TYPE != USB_PHY_TYPE_UTMI) + panicf("usb: wrong HS phy type (%ld)", USB_GHWCFG2_HS_PHY_TYPE); + if(USB_GHWCFG2_FS_PHY_TYPE != USB_PHY_TYPE_UNSUPPORTED) + panicf("usb: wrong FS phy type (%ld)", USB_GHWCFG2_FS_PHY_TYPE); + if(USB_GHWCFG2_DYN_FIFO != 1) + panicf("usb: no dynamic fifo"); + if(USB_GHWCFG4_UTMI_PHY_DATA_WIDTH != 0x2) + panicf("usb: wrong utmi data width (%ld)", USB_GHWCFG4_UTMI_PHY_DATA_WIDTH); + if(USB_GHWCFG4_DED_FIFO_EN != 1) /* it seems to be multiple tx fifo support */ + panicf("usb: no multiple tx fifo"); + logf("hwcfg1: %08lx", USB_GHWCFG1); logf("hwcfg2: %08lx", USB_GHWCFG2); logf("hwcfg3: %08lx", USB_GHWCFG3); logf("hwcfg4: %08lx", USB_GHWCFG4); - logf("%ld in ep", USB_GHWCFG4_NUM_IN_EP); - logf("tot fifo sz: %ld", USB_GHWCFG3_DFIFO_LEN); - logf("rx fifo sz: %ld", USB_GRXFSIZ); - logf("tx fifo sz: %ld", USB_GNPTXFSIZ >> 16); /* there is no perio ep so print only non-perio */ + logf("%ld endpoints", USB_GHWCFG2_NUM_EP); + usb_num_in_ep = 0; + usb_num_out_ep = 0; + for(i = 0; i < USB_GHWCFG2_NUM_EP; i++) + { + if(USB_GHWCFG1_IN_EP(i)) + usb_num_in_ep++; + if(USB_GHWCFG1_OUT_EP(i)) + usb_num_out_ep++; + logf(" EP%d: IN=%ld OUT=%ld", i, USB_GHWCFG1_IN_EP(i), USB_GHWCFG1_OUT_EP(i)); + } + + if(usb_num_in_ep != USB_GHWCFG4_NUM_IN_EP) + panicf("usb: num in ep mismatch(%d,%lu)", usb_num_in_ep, USB_GHWCFG4_NUM_IN_EP); + + logf("%d in ep, %d out ep", usb_num_in_ep, usb_num_out_ep); + logf("initial:"); + logf(" tot fifo sz: %ld", USB_GHWCFG3_DFIFO_LEN); + logf(" rx fifo sz: %ld", USB_GRXFSIZ); + logf(" tx fifo sz: %ld", USB_GET_FIFOSIZE_DEPTH(USB_GNPTXFSIZ)); /* there is no perio ep so print only non-perio */ + for(i = 1; i <= USB_GHWCFG4_NUM_IN_EP; i++) + { + logf(" dieptx fifo sd (%2u): %ld", i, USB_GET_FIFOSIZE_DEPTH(USB_DIEPTXFSIZ(i))); + } + + /* Setup FIFOs */ + /* Organize FIFO as follow (unsure): + * 0 -> rxfsize : RX fifo + * rxfsize -> rxfsize + nptxfsize : TX fifo for first IN ep + * rxfsize + nptxfsize -> rxfsize + 2 * nptxfsize : TX fifo for second IN ep + * rxfsize + 2 * nptxfsize -> rxfsize + 3 * nptxfsize : TX fifo for third IN ep + * ... + */ + + unsigned short adr = USB_GRXFSIZ; + unsigned short depth = USB_GET_FIFOSIZE_DEPTH(USB_GNPTXFSIZ); + USB_GNPTXFSIZ = USB_MAKE_FIFOSIZE_DATA(adr, depth); + adr += depth; + + for(i = 1; i <= USB_GHWCFG4_NUM_IN_EP; i++) + { + depth = USB_GET_FIFOSIZE_DEPTH(USB_DIEPTXFSIZ(i)); + USB_DIEPTXFSIZ(i) = USB_MAKE_FIFOSIZE_DATA(adr, depth); + adr += depth; + } + + logf("used:"); + logf(" rx fifo: [%04x,+%4lx]", 0, USB_GRXFSIZ); + logf(" nptx fifo: [%04lx,+%4lx]", USB_GET_FIFOSIZE_START_ADR(USB_GNPTXFSIZ), + USB_GET_FIFOSIZE_DEPTH(USB_GNPTXFSIZ)); + for(i = 1; i <= USB_GHWCFG4_NUM_IN_EP; i++) + { + logf(" dieptx fifo(%2u): [%04lx,+%4lx]", i, + USB_GET_FIFOSIZE_START_ADR(USB_DIEPTXFSIZ(i)), + USB_GET_FIFOSIZE_DEPTH(USB_DIEPTXFSIZ(i))); + } + + /* flush the fifos */ + usb_flush_tx_fifos(0x10); /* flush all */ + usb_flush_rx_fifo(); + + /* flush learning queue */ + USB_GRSTCTL |= USB_GRSTCTL_intknqflsh; + + /* Clear all pending device interrupts */ + USB_DIEPMSK = 0; + USB_DOEPMSK = 0; + USB_DAINT = 0xffffffff; + USB_DAINTMSK = 0; + + for(i = 0; i <= usb_num_in_ep; i++) + { + /* disable endpoint if enabled */ + if(USB_DIEPCTL(i) & USB_DEPCTL_epena) + USB_DIEPCTL(i) = USB_DEPCTL_epdis | USB_DEPCTL_snak; + else + USB_DIEPCTL(i) = 0; + + USB_DIEPTSIZ(i) = 0; + USB_DIEPDMA(i) = 0; + USB_DIEPINT(i) = 0xff; + } + + for(i = 0; i <= usb_num_out_ep; i++) + { + /* disable endpoint if enabled */ + if(USB_DOEPCTL(i) & USB_DEPCTL_epena) + USB_DOEPCTL(i) = USB_DEPCTL_epdis | USB_DEPCTL_snak; + else + USB_DOEPCTL(i) = 0; + + USB_DOEPTSIZ(i) = 0; + USB_DOEPDMA(i) = 0; + USB_DOEPINT(i) = 0xff; + } +} + +static void core_dev_init(void) +{ + /* Restart the phy clock */ + USB_PCGCCTL = 0; + /* Set phy speed : high speed */ + USB_DCFG = (USB_DCFG & (~USB_DCFG_devspd_bits)) | USB_DCFG_devspd_hs_phy_hs; + /* Set periodic frame interval */ + USB_DCFG = (USB_DCFG & (~USB_DCFG_perfrint_bits)) | (USB_DCFG_FRAME_INTERVAL_80 << USB_DCFG_perfrint_bit_pos); + /* Configure data fifo size */ } static void core_init(void) @@ -169,6 +328,12 @@ static void core_init(void) USB_GAHBCFG |= USB_GAHBCFG_dma_enable; /* Disable HNP and SRP, not sure it's useful because we already forced dev mode */ USB_GUSBCFG &= ~(USB_GUSBCFG_SRP_cap | USB_GUSBCFG_HNP_cap); + + /* enable basic interrupts */ + usb_enable_common_interrupts(); + + /* perform device model specific init */ + core_dev_init(); } void usb_drv_init(void) diff --git a/firmware/target/arm/as3525/usb-drv-as3525v2.h b/firmware/target/arm/as3525/usb-drv-as3525v2.h index 4abbdb7dc2..ce132ad7b5 100644 --- a/firmware/target/arm/as3525/usb-drv-as3525v2.h +++ b/firmware/target/arm/as3525/usb-drv-as3525v2.h @@ -50,19 +50,47 @@ #define USB_GHWCFG3 (*(volatile unsigned long *)(USB_BASE + 0x04C)) /** User HW Config3 Register */ #define USB_GHWCFG4 (*(volatile unsigned long *)(USB_BASE + 0x050)) /** User HW Config4 Register */ +/* 1<=ep<=15, don't use ep=0 !!! */ +/** Device IN Endpoint Transmit FIFO (ep) Size Register */ +#define USB_DIEPTXFSIZ(ep) (*(volatile unsigned long *)(USB_BASE + 0x100 + 4 * (ep))) + +#define USB_MAKE_FIFOSIZE_DATA(startadr, depth) \ + (((startadr) & 0xffff) | ((depth) << 16)) + +#define USB_GET_FIFOSIZE_DEPTH(data) \ + ((data) >> 16) + +#define USB_GET_FIFOSIZE_START_ADR(data) \ + ((data) & 0xffff) + #define USB_GRSTCTL_csftrst (1 << 0) /** Core soft reset */ #define USB_GRSTCTL_hsftrst (1 << 1) /** Hclk soft reset */ +#define USB_GRSTCTL_intknqflsh (1 << 3) /** In Token Sequence Learning Queue Flush */ +#define USB_GRSTCTL_txfnum_bit_pos 6 /** TxFIFO Number */ +#define USB_GRSTCTL_txfnum_bits (0x1f << 6) +#define USB_GRSTCTL_txfflsh_flush (1 << 5) /** TxFIFO Flush */ +#define USB_GRSTCTL_rxfflsh_flush (1 << 4) /** RxFIFO Flush */ #define USB_GRSTCTL_ahbidle (1 << 31) /** AHB idle state*/ #define USB_GHWCFG1_IN_EP(ep) ((USB_GHWCFG1 >> ((ep) *2)) & 0x1) /** 1 if EP(ep) has in cap */ #define USB_GHWCFG1_OUT_EP(ep) ((USB_GHWCFG1 >> ((ep) *2 + 1)) & 0x1)/** 1 if EP(ep) has out cap */ +#define USB_GHWCFG2_ARCH ((USB_GHWCFG2 >> 3) & 0x3) /** Architecture */ +#define USB_GHWCFG2_HS_PHY_TYPE ((USB_GHWCFG2 >> 6) & 0x3) /** High speed PHY type */ +#define USB_GHWCFG2_FS_PHY_TYPE ((USB_GHWCFG2 >> 8) & 0x3) /** Full speed PHY type */ +#define USB_GHWCFG2_NUM_EP ((USB_GHWCFG2 >> 10) & 0xf) /** Number of endpoints */ +#define USB_GHWCFG2_DYN_FIFO ((USB_GHWCFG2 >> 19) & 0x1) /** Dynamic FIFO */ + +#define USB_PHY_TYPE_UNSUPPORTED 0 +#define USB_PHY_TYPE_UTMI 1 +#define USB_INT_DMA_ARCH 2 + #define USB_GHWCFG3_DFIFO_LEN (USB_GHWCFG3 >> 16) /** Total fifo size */ +#define USB_GHWCFG4_UTMI_PHY_DATA_WIDTH ((USB_GHWCFG4 >> 14) & 0x3) +#define USB_GHWCFG4_DED_FIFO_EN ((USB_GHWCFG4 >> 25) & 0x1) #define USB_GHWCFG4_NUM_IN_EP ((USB_GHWCFG4 >> 26) & 0xf) /** Number of IN endpoints */ -#define USB_GHWCFG2_NUM_EP ((USB_GHWCFG2 >> 10) & 0xf) /** Number of endpoints */ - #define USB_GUSBCFG_ulpi_utmi_sel (1 << 4) /** select ulpi:1 or utmi:0 */ #define USB_GUSBCFG_phy_if (1 << 3) /** select utmi bus width ? */ #define USB_GUSBCFG_SRP_cap 0x100 @@ -72,6 +100,40 @@ #define USB_GAHBCFG_INT_DMA_BURST_INCR 1 /** note: the linux patch has several other value, this is one picked for internal dma */ #define USB_GAHBCFG_dma_enable (1 << 5) +#define USB_GINTMSK_usb_rst 0x00001000 /*!< USB Reset Mask */ +#define USB_GINTMSK_EnumDone 0x00000200 /*!< Enumeration Done Mask */ +#define USB_GINTMSK_ErlySusp 0x00000400 /*!< Early Suspend Mask */ +#define USB_GINTMSK_USBSusp 0x00000800 /*!< USB Suspend Mask */ +#define USB_GINTMSK_SOF 0x00000008 /*!< Start of (micro)Frame Mask */ +#define USB_GINTMSK_NPTxFEmp 0x00000020 /*!< Non-periodic TxFIFO Empty Mask */ + +#define USB_GINTMSK_wkupintr (1 << 31) +#define USB_GINTMSK_sessreqintr (1 << 30) +#define USB_GINTMSK_disconnect (1 << 29) +#define USB_GINTMSK_conidstschng (1 << 28) +#define USB_GINTMSK_ptxfempty (1 << 26) +#define USB_GINTMSK_hcintr (1 << 25) +#define USB_GINTMSK_portintr (1 << 24) +#define USB_GINTMSK_incomplisoout (1 << 21) +#define USB_GINTMSK_incomplisoin (1 << 20) +#define USB_GINTMSK_outepintr (1 << 19) +#define USB_GINTMSK_inepintr (1 << 18) +#define USB_GINTMSK_epmismatch (1 << 17) +#define USB_GINTMSK_eopframe (1 << 15) +#define USB_GINTMSK_isooutdrop (1 << 14) +#define USB_GINTMSK_enumdone (1 << 13) +#define USB_GINTMSK_usbreset (1 << 12) +#define USB_GINTMSK_usbsuspend (1 << 11) +#define USB_GINTMSK_erlysuspend (1 << 10) +#define USB_GINTMSK_i2cintr (1 << 9) +#define USB_GINTMSK_goutnakeff (1 << 7) +#define USB_GINTMSK_ginnakeff (1 << 6) +#define USB_GINTMSK_nptxfempty (1 << 5) +#define USB_GINTMSK_rxstsqlvl (1 << 4) +#define USB_GINTMSK_sofintr (1 << 3) +#define USB_GINTMSK_otgintr (1 << 2) +#define USB_GINTMSK_modemismatch (1 << 1) + /** * Device Registers Base Addresses */ @@ -86,6 +148,49 @@ #define USB_DTKNQR2 (*(volatile unsigned long *)(USB_DEVICE + 0x24)) /** Device IN Token Sequence Learning Queue Register 2 */ #define USB_DTKNQP (*(volatile unsigned long *)(USB_DEVICE + 0x28)) /** Device IN Token Queue Pop register */ +#define USB_DCFG_devspd_bits 0x3 +#define USB_DCFG_devspd_hs_phy_hs 0 /** High speed PHY running at high speed */ +#define USB_DCFG_devspd_hs_phy_fs 1 /** High speed PHY running at full speed */ +#define USB_DCFG_perfrint_bit_pos 11 /** Periodic Frame Interval */ +#define USB_DCFG_perfrint_bits (0x3 << USB_DCFG_perfrint_bit_pos) +#define USB_DCFG_FRAME_INTERVAL_80 0 +#define USB_DCFG_FRAME_INTERVAL_85 1 +#define USB_DCFG_FRAME_INTERVAL_90 2 +#define USB_DCFG_FRAME_INTERVAL_95 3 + +/* 0<=ep<=15, you can use ep=0 */ +/** Device IN Endpoint (ep) Control Register */ +#define USB_DIEPCTL(ep) (*(volatile unsigned long *)(USB_DEVICE + 0x100 + (ep) * 0x20)) +/** Device IN Endpoint (ep) Interrupt Register */ +#define USB_DIEPINT(ep) (*(volatile unsigned long *)(USB_DEVICE + 0x100 + (ep) * 0x20 + 0x8)) +/** Device IN Endpoint (ep) Transfer Size Register */ +#define USB_DIEPTSIZ(ep) (*(volatile unsigned long *)(USB_DEVICE + 0x100 + (ep) * 0x20 + 0x10)) +/** Device IN Endpoint (ep) DMA Address Register */ +#define USB_DIEPDMA(ep) (*(volatile unsigned long *)(USB_DEVICE + 0x100 + (ep) * 0x20 + 0x14)) +/** Device IN Endpoint (ep) Transmit FIFO Status Register */ +#define USB_DTXFSTS(ep) (*(volatile unsigned long *)(USB_DEVICE + 0x100 + (ep) * 0x20 + 0x18)) + +/** Device OUT Endpoint (ep) Control Register */ +#define USB_DOEPCTL(ep) (*(volatile unsigned long *)(USB_DEVICE + 0x300 + (ep) * 0x20)) +/** Device OUT Endpoint (ep) Frame number Register */ +#define USB_DOEPFN(ep) (*(volatile unsigned long *)(USB_DEVICE + 0x300 + (ep) * 0x20 + 0x4)) +/** Device Endpoint (ep) Interrupt Register */ +#define USB_DOEPINT(ep) (*(volatile unsigned long *)(USB_DEVICE + 0x300 + (ep) * 0x20 + 0x8)) +/** Device OUT Endpoint (ep) Transfer Size Register */ +#define USB_DOEPTSIZ(ep) (*(volatile unsigned long *)(USB_DEVICE + 0x300 + (ep) * 0x20 + 0x10)) +/** Device Endpoint (ep) DMA Address Register */ +#define USB_DOEPDMA(ep) (*(volatile unsigned long *)(USB_DEVICE + 0x300 + (ep) * 0x20 + 0x14)) + #define USB_PCGCCTL (*(volatile unsigned long *)(USB_BASE + 0xE00)) /** Power and Clock Gating Control Register */ +#define USB_DEPCTL_epena (1 << 31) /** Endpoint enable */ +#define USB_DEPCTL_epdis (1 << 30) /** Endpoint disable */ +#define USB_DEPCTL_snak (1 << 27) /** Set NAK */ +#define USB_DEPCTL_cnak (1 << 28) /** Clear NAK */ + +/** + * Parameters + */ + + #endif /* __USB_DRV_AS3525v2_H__ */ -- cgit v1.2.3