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USB chip registers seem to be visible now

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This commit is contained in:
Markus Fröschle
2013-11-09 17:35:49 +00:00
parent e82cd3dd69
commit 37dc24315a
3 changed files with 24 additions and 11 deletions
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25
BaS_gcc/sources/pci.c
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@@ -300,6 +300,7 @@ static void pci_device_config(uint16_t bus, uint16_t device, uint16_t function)
int16_t index = - 1;
struct pci_rd *descriptors;
int i;
uint32_t value;
static uint32_t mem_address = PCI_MEMORY_OFFSET;
static uint32_t io_address = PCI_IO_OFFSET;
@@ -319,9 +320,6 @@ static void pci_device_config(uint16_t bus, uint16_t device, uint16_t function)
descriptors = resource_descriptors[index];
for (i = 0; i < 6; i++) /* for all bars */
{
uint32_t value;
/*
* read BAR[i] value
*/
@@ -348,6 +346,7 @@ static void pci_device_config(uint16_t bus, uint16_t device, uint16_t function)
{
/* adjust base address to card's alignment requirements */
int size = ~(address & 0xfffffff0) + 1;
xprintf("device 0x%x: BAR[%d] requests %d kBytes of memory\r\n", handle, i, size / 1024);
/* calculate a valid map adress with alignment requirements */
mem_address = (mem_address + size - 1) & ~(size - 1);
@@ -366,7 +365,7 @@ static void pci_device_config(uint16_t bus, uint16_t device, uint16_t function)
rd->flags = 0 | FLG_8BIT | FLG_16BIT | FLG_32BIT | ORD_MOTOROLA;
rd->start = mem_address;
rd->length = size;
rd->offset = 0;
rd->offset = PCI_MEMORY_OFFSET;
rd->dmaoffset = 0;
/* adjust memory adress for next turn */
@@ -378,6 +377,7 @@ static void pci_device_config(uint16_t bus, uint16_t device, uint16_t function)
else if (IS_PCI_IO_BAR(value)) /* same as above for I/O resources */
{
int size = ~(address & 0xfffffffc) + 1;
xprintf("device 0x%x: BAR[%d] requests %d bytes of memory\r\n", handle, i, size);
io_address = (io_address + size - 1) & ~(size - 1);
pci_write_config_longword(handle, PCIBAR0 + i, swpl(io_address));
@@ -389,7 +389,7 @@ static void pci_device_config(uint16_t bus, uint16_t device, uint16_t function)
rd->next = sizeof(struct pci_rd);
rd->flags = FLG_IO | FLG_8BIT | FLG_16BIT | FLG_32BIT | 1;
rd->start = io_address;
rd->offset = PCI_MEMORY_OFFSET;
rd->offset = PCI_IO_OFFSET;
rd->length = size;
rd->dmaoffset = PCI_MEMORY_OFFSET;
@@ -402,6 +402,16 @@ static void pci_device_config(uint16_t bus, uint16_t device, uint16_t function)
/* mark end of resource chain */
if (barnum > 0)
descriptors[barnum - 1].flags |= FLG_LAST;
/*
* enable device finally
*/
value = swpl(pci_read_config_longword(handle, PCICSR));
value |= 0xffff035f;
pci_write_config_longword(handle, PCICSR, swpl(value));
value = swpl(pci_read_config_longword(handle, PCICSR));
xprintf("device 0x%02x PCICSR = 0x%08x\r\n", handle, value);
}
/*
@@ -441,6 +451,7 @@ void pci_scan(void)
PCI_DEVICE_FROM_HANDLE(handle),
PCI_FUNCTION_FROM_HANDLE(handle));
}
handle = pci_find_device(0x0, 0xFFFF, ++index);
}
xprintf("\r\n...finished\r\n");
@@ -513,8 +524,8 @@ void init_pci(void)
*/
/* initiator window 0 base / translation adress register */
MCF_PCI_PCIIW0BTAR = PCI_MEMORY_OFFSET | (((PCI_MEMORY_SIZE - 1) >> 8) & 0xffff0000) |
PCI_MEMORY_OFFSET >> 16;
MCF_PCI_PCIIW0BTAR = PCI_MEMORY_OFFSET | (((PCI_MEMORY_SIZE - 1) >> 8) & 0xffff0000);
/* | PCI_MEMORY_OFFSET >> 16; */
/* initiator window 1 base / translation adress register */
MCF_PCI_PCIIW1BTAR = (PCI_IO_OFFSET | ((PCI_IO_SIZE - 1) >> 8)) & 0xffff0000;