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Re: [Qemu-devel] [PATCH] SH: r2d pci support.
From: |
andrzej zaborowski |
Subject: |
Re: [Qemu-devel] [PATCH] SH: r2d pci support. |
Date: |
Sun, 7 Dec 2008 20:21:33 +0100 |
Hi,
2008/11/3 <address@hidden>:
> This patch adds pci support to sh/r2d board.
> This is the first user of PCIC support I formerly sent.
>
> PCIC actually is inside of chip with CPU core on SH7751.
> But, this code is written as if SH7750 and PCIC are on board.
> I care little about physical device boundary, but fitting with qemu's design.
>
> This patch also adds some BSC(Bus State Controller) registers,
> because PCI device driver software have to accesses them.
>
> /yoshii
>
> Signed-off-by: Takashi YOSHII <address@hidden>
> ---
> hw/r2d.c | 26 ++++++++++++++++++++++++++
> hw/sh7750.c | 17 +++++++++++++++++
> 2 files changed, 43 insertions(+), 0 deletions(-)
>
> diff --git a/hw/r2d.c b/hw/r2d.c
> index f818711..54529ca 100644
> --- a/hw/r2d.c
> +++ b/hw/r2d.c
> @@ -27,6 +27,9 @@
> #include "sh.h"
> #include "sysemu.h"
> #include "boards.h"
> +#include "pci.h"
> +#include "net.h"
> +#include "sh7750_regs.h"
>
> #define SDRAM_BASE 0x0c000000 /* Physical location of SDRAM: Area 3 */
> #define SDRAM_SIZE 0x04000000
> @@ -183,6 +186,17 @@ static qemu_irq *r2d_fpga_init(target_phys_addr_t base,
> qemu_irq irl)
> return qemu_allocate_irqs(r2d_fpga_irq_set, s, NR_IRQS);
> }
>
> +static void r2d_pci_set_irq(qemu_irq *p, int n, int l)
> +{
> + qemu_set_irq(p[n], l);
> +}
> +
> +static int r2d_pci_map_irq(PCIDevice *d, int irq_num)
> +{
> + const int intx[] = { PCI_INTA, PCI_INTB, PCI_INTC, PCI_INTD };
> + return intx[d->devfn>>3];
> +}
> +
> static void r2d_init(ram_addr_t ram_size, int vga_ram_size,
> const char *boot_device, DisplayState * ds,
> const char *kernel_filename, const char *kernel_cmdline,
> @@ -191,6 +205,8 @@ static void r2d_init(ram_addr_t ram_size, int
> vga_ram_size,
> CPUState *env;
> struct SH7750State *s;
> qemu_irq *irq;
> + PCIBus *pci;
> + int i;
>
> if (!cpu_model)
> cpu_model = "SH7751R";
> @@ -206,14 +222,24 @@ static void r2d_init(ram_addr_t ram_size, int
> vga_ram_size,
> /* Register peripherals */
> s = sh7750_init(env);
> irq = r2d_fpga_init(0x04000000, sh7750_irl(s));
> + pci = sh_pci_register_bus(r2d_pci_set_irq, r2d_pci_map_irq, irq, 0, 4);
>
> /* onboard CF (True IDE mode, Master only). */
> mmio_ide_init(0x14001000, 0x1400080c, irq[CF_IDE], 1,
> drives_table[drive_get_index(IF_IDE, 0, 0)].bdrv, NULL);
> + /* NIC: rtl8139 on-board, and 2 slots. */
> + pci_rtl8139_init(pci, &nd_table[0], 2<<3);
> + for (i = 1; i < nb_nics; i++)
> + pci_nic_init(pci, &nd_table[i], -1);
>
> /* Todo: register on board registers */
> {
> int kernel_size;
> + /* initialization which should be done by firmware */
> + uint32_t bcr1 = 1<<3; // cs3 SDRAM
> + uint16_t bcr2 = 3<<(3*2); // cs3 32bit
> + cpu_physical_memory_write(SH7750_BCR1_A7,&bcr1,4);
> + cpu_physical_memory_write(SH7750_BCR2_A7,&bcr2,2);
I pushed this patch but it looks like there may be an endianness problem here.
Cheers
- Re: [Qemu-devel] [PATCH] SH: r2d pci support.,
andrzej zaborowski <=