The code in swapcase can be used by other sandbox drivers. Move it into a common place to allow this.
Signed-off-by: Simon Glass sjg@chromium.org ---
arch/sandbox/include/asm/test.h | 15 +++++++++++++++ drivers/misc/Makefile | 2 +- drivers/misc/swap_case.c | 18 +++--------------- drivers/pci/pci-emul-uclass.c | 20 ++++++++++++++++++++ drivers/pci/pci_sandbox.c | 1 + 5 files changed, 40 insertions(+), 16 deletions(-)
diff --git a/arch/sandbox/include/asm/test.h b/arch/sandbox/include/asm/test.h index 1b21af6bed7..cd2b9e3155d 100644 --- a/arch/sandbox/include/asm/test.h +++ b/arch/sandbox/include/asm/test.h @@ -198,4 +198,19 @@ int sandbox_get_pch_spi_protect(struct udevice *dev); */ int sandbox_get_pci_ep_irq_count(struct udevice *dev);
+/** + * sandbox_pci_read_bar() - Read the BAR value for a read_config operation + * + * This is used in PCI emulators to read a base address reset. This has special + * rules because when the register is set to 0xffffffff it can be used to + * discover the type and size of the BAR. + * + * @barval: Current value of the BAR + * @type: Type of BAR (PCI_BASE_ADDRESS_SPACE_IO or + * PCI_BASE_ADDRESS_MEM_TYPE_32) + * @size: Size of BAR in bytes + * @return BAR value to return from emulator + */ +uint sandbox_pci_read_bar(u32 barval, int type, uint size); + #endif diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index 509c588582d..0001d105bae 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -12,6 +12,7 @@ obj-$(CONFIG_$(SPL_TPL_)CROS_EC_LPC) += cros_ec_lpc.o ifndef CONFIG_SPL_BUILD obj-$(CONFIG_CROS_EC_I2C) += cros_ec_i2c.o obj-$(CONFIG_CROS_EC_SPI) += cros_ec_spi.o +obj-$(CONFIG_SANDBOX) += swap_case.o endif
ifdef CONFIG_DM_I2C @@ -52,7 +53,6 @@ obj-$(CONFIG_PCA9551_LED) += pca9551_led.o obj-$(CONFIG_$(SPL_)PWRSEQ) += pwrseq-uclass.o obj-$(CONFIG_QFW) += qfw.o obj-$(CONFIG_ROCKCHIP_EFUSE) += rockchip-efuse.o -obj-$(CONFIG_SANDBOX) += swap_case.o obj-$(CONFIG_SANDBOX) += syscon_sandbox.o misc_sandbox.o obj-$(CONFIG_SMSC_LPC47M) += smsc_lpc47m.o obj-$(CONFIG_SMSC_SIO1007) += smsc_sio1007.o diff --git a/drivers/misc/swap_case.c b/drivers/misc/swap_case.c index 75fe6416707..11189d16c83 100644 --- a/drivers/misc/swap_case.c +++ b/drivers/misc/swap_case.c @@ -139,25 +139,13 @@ static int sandbox_swap_case_read_config(struct udevice *emul, uint offset, case PCI_BASE_ADDRESS_4: case PCI_BASE_ADDRESS_5: { int barnum; - u32 *bar, result; + u32 *bar;
barnum = pci_offset_to_barnum(offset); bar = &plat->bar[barnum];
- result = *bar; - if (*bar == 0xffffffff) { - if (barinfo[barnum].type) { - result = (~(barinfo[barnum].size - 1) & - PCI_BASE_ADDRESS_IO_MASK) | - PCI_BASE_ADDRESS_SPACE_IO; - } else { - result = (~(barinfo[barnum].size - 1) & - PCI_BASE_ADDRESS_MEM_MASK) | - PCI_BASE_ADDRESS_MEM_TYPE_32; - } - } - debug("r bar %d=%x\n", barnum, result); - *valuep = result; + *valuep = sandbox_pci_read_bar(*bar, barinfo[barnum].type, + barinfo[barnum].size); break; } case PCI_CAPABILITY_LIST: diff --git a/drivers/pci/pci-emul-uclass.c b/drivers/pci/pci-emul-uclass.c index a70c5e7633d..6e6172836a4 100644 --- a/drivers/pci/pci-emul-uclass.c +++ b/drivers/pci/pci-emul-uclass.c @@ -43,6 +43,26 @@ int sandbox_pci_get_emul(struct udevice *bus, pci_dev_t find_devfn, return *emulp ? 0 : -ENODEV; }
+uint sandbox_pci_read_bar(u32 barval, int type, uint size) +{ + u32 result; + + result = barval; + if (result == 0xffffffff) { + if (type == PCI_BASE_ADDRESS_SPACE_IO) { + result = (~(size - 1) & + PCI_BASE_ADDRESS_IO_MASK) | + PCI_BASE_ADDRESS_SPACE_IO; + } else { + result = (~(size - 1) & + PCI_BASE_ADDRESS_MEM_MASK) | + PCI_BASE_ADDRESS_MEM_TYPE_32; + } + } + + return result; +} + static int sandbox_pci_emul_post_probe(struct udevice *dev) { struct sandbox_pci_emul_priv *priv = dev->uclass->priv; diff --git a/drivers/pci/pci_sandbox.c b/drivers/pci/pci_sandbox.c index 2af2b79c05d..2a38d104a09 100644 --- a/drivers/pci/pci_sandbox.c +++ b/drivers/pci/pci_sandbox.c @@ -8,6 +8,7 @@ #include <dm.h> #include <fdtdec.h> #include <pci.h> +#include <asm/test.h>
#define FDT_DEV_INFO_CELLS 4 #define FDT_DEV_INFO_SIZE (FDT_DEV_INFO_CELLS * sizeof(u32))