+++ /dev/null
-From 93824983ceb36d4ce1f4a644031ec6fb5f332f1d Mon Sep 17 00:00:00 2001
-From: Gabor Juhos <juhosg@openwrt.org>
-Date: Tue, 26 Jun 2012 15:14:47 +0200
-Subject: [PATCH 13/34] MIPS: pci-ar724x: setup command register of the PCI controller
-
-Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
----
- arch/mips/ath79/pci.c | 10 +++-
- arch/mips/include/asm/mach-ath79/ar71xx_regs.h | 2 +
- arch/mips/pci/pci-ar724x.c | 63 ++++++++++++++++++++++++
- 3 files changed, 74 insertions(+), 1 deletions(-)
-
---- a/arch/mips/ath79/pci.c
-+++ b/arch/mips/ath79/pci.c
-@@ -137,13 +137,14 @@ static struct platform_device *
- ath79_register_pci_ar724x(int id,
- unsigned long cfg_base,
- unsigned long ctrl_base,
-+ unsigned long crp_base,
- unsigned long mem_base,
- unsigned long mem_size,
- unsigned long io_base,
- int irq)
- {
- struct platform_device *pdev;
-- struct resource res[5];
-+ struct resource res[6];
-
- memset(res, 0, sizeof(res));
-
-@@ -171,6 +172,11 @@ ath79_register_pci_ar724x(int id,
- res[4].start = io_base;
- res[4].end = io_base;
-
-+ res[5].name = "crp_base";
-+ res[5].flags = IORESOURCE_MEM;
-+ res[5].start = crp_base;
-+ res[5].end = crp_base + AR724X_PCI_CRP_SIZE - 1;
-+
- pdev = platform_device_register_simple("ar724x-pci", id,
- res, ARRAY_SIZE(res));
- return pdev;
-@@ -186,6 +192,7 @@ int __init ath79_register_pci(void)
- pdev = ath79_register_pci_ar724x(-1,
- AR724X_PCI_CFG_BASE,
- AR724X_PCI_CTRL_BASE,
-+ AR724X_PCI_CRP_BASE,
- AR724X_PCI_MEM_BASE,
- AR724X_PCI_MEM_SIZE,
- 0,
-@@ -201,6 +208,7 @@ int __init ath79_register_pci(void)
- pdev = ath79_register_pci_ar724x(-1,
- AR724X_PCI_CFG_BASE,
- AR724X_PCI_CTRL_BASE,
-+ AR724X_PCI_CRP_BASE,
- AR724X_PCI_MEM_BASE,
- AR724X_PCI_MEM_SIZE,
- 0,
---- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
-+++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
-@@ -67,6 +67,8 @@
-
- #define AR724X_PCI_CFG_BASE 0x14000000
- #define AR724X_PCI_CFG_SIZE 0x1000
-+#define AR724X_PCI_CRP_BASE (AR71XX_APB_BASE + 0x000c0000)
-+#define AR724X_PCI_CRP_SIZE 0x1000
- #define AR724X_PCI_CTRL_BASE (AR71XX_APB_BASE + 0x000f0000)
- #define AR724X_PCI_CTRL_SIZE 0x100
-
---- a/arch/mips/pci/pci-ar724x.c
-+++ b/arch/mips/pci/pci-ar724x.c
-@@ -29,9 +29,17 @@
-
- #define AR7240_BAR0_WAR_VALUE 0xffff
-
-+#define AR724X_PCI_CMD_INIT (PCI_COMMAND_MEMORY | \
-+ PCI_COMMAND_MASTER | \
-+ PCI_COMMAND_INVALIDATE | \
-+ PCI_COMMAND_PARITY | \
-+ PCI_COMMAND_SERR | \
-+ PCI_COMMAND_FAST_BACK)
-+
- struct ar724x_pci_controller {
- void __iomem *devcfg_base;
- void __iomem *ctrl_base;
-+ void __iomem *crp_base;
-
- int irq;
- int irq_base;
-@@ -64,6 +72,51 @@ pci_bus_to_ar724x_controller(struct pci_
- return container_of(hose, struct ar724x_pci_controller, pci_controller);
- }
-
-+static int ar724x_pci_local_write(struct ar724x_pci_controller *apc,
-+ int where, int size, u32 value)
-+{
-+ unsigned long flags;
-+ void __iomem *base;
-+ u32 data;
-+ int s;
-+
-+ WARN_ON(where & (size - 1));
-+
-+ if (!apc->link_up)
-+ return PCIBIOS_DEVICE_NOT_FOUND;
-+
-+ base = apc->crp_base;
-+
-+ spin_lock_irqsave(&apc->lock, flags);
-+ data = __raw_readl(base + (where & ~3));
-+
-+ switch (size) {
-+ case 1:
-+ s = ((where & 3) * 8);
-+ data &= ~(0xff << s);
-+ data |= ((value & 0xff) << s);
-+ break;
-+ case 2:
-+ s = ((where & 2) * 8);
-+ data &= ~(0xffff << s);
-+ data |= ((value & 0xffff) << s);
-+ break;
-+ case 4:
-+ data = value;
-+ break;
-+ default:
-+ spin_unlock_irqrestore(&apc->lock, flags);
-+ return PCIBIOS_BAD_REGISTER_NUMBER;
-+ }
-+
-+ __raw_writel(data, base + (where & ~3));
-+ /* flush write */
-+ __raw_readl(base + (where & ~3));
-+ spin_unlock_irqrestore(&apc->lock, flags);
-+
-+ return PCIBIOS_SUCCESSFUL;
-+}
-+
- static int ar724x_pci_read(struct pci_bus *bus, unsigned int devfn, int where,
- int size, uint32_t *value)
- {
-@@ -324,6 +377,14 @@ static int __devinit ar724x_pci_probe(st
- if (!apc->devcfg_base)
- return -EBUSY;
-
-+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "crp_base");
-+ if (!res)
-+ return -EINVAL;
-+
-+ apc->crp_base = devm_request_and_ioremap(&pdev->dev, res);
-+ if (apc->crp_base == NULL)
-+ return -EBUSY;
-+
- apc->irq = platform_get_irq(pdev, 0);
- if (apc->irq < 0)
- return -EINVAL;
-@@ -360,6 +421,8 @@ static int __devinit ar724x_pci_probe(st
-
- ar724x_pci_irq_init(apc, id);
-
-+ ar724x_pci_local_write(apc, PCI_COMMAND, 4, AR724X_PCI_CMD_INIT);
-+
- register_pci_controller(&apc->pci_controller);
-
- return 0;
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