diff options
Diffstat (limited to 'target/linux/lantiq/patches-3.3/0005-pci-support.patch')
| -rw-r--r-- | target/linux/lantiq/patches-3.3/0005-pci-support.patch | 355 |
1 files changed, 355 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-3.3/0005-pci-support.patch b/target/linux/lantiq/patches-3.3/0005-pci-support.patch new file mode 100644 index 0000000000..bdc8901f41 --- /dev/null +++ b/target/linux/lantiq/patches-3.3/0005-pci-support.patch @@ -0,0 +1,355 @@ +From b80a5236053be899421417871d1be8016912e94b Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Fri, 3 Aug 2012 09:52:10 +0200 +Subject: [PATCH 05/25] pci support + +--- + arch/mips/include/asm/mach-lantiq/lantiq.h | 37 ++++----- + .../mips/include/asm/mach-lantiq/lantiq_platform.h | 9 ++ + arch/mips/pci/Makefile | 5 +- + arch/mips/pci/ops-lantiq.c | 6 +- + arch/mips/pci/pci-lantiq.c | 82 ++++++++------------ + arch/mips/pci/pci-lantiq.h | 2 +- + arch/mips/pci/pci.c | 25 ++++++ + 7 files changed, 89 insertions(+), 77 deletions(-) + +diff --git a/arch/mips/include/asm/mach-lantiq/lantiq.h b/arch/mips/include/asm/mach-lantiq/lantiq.h +index ce2f029..622847f 100644 +--- a/arch/mips/include/asm/mach-lantiq/lantiq.h ++++ b/arch/mips/include/asm/mach-lantiq/lantiq.h +@@ -9,6 +9,8 @@ + #define _LANTIQ_H__ + + #include <linux/irq.h> ++#include <linux/clk.h> ++#include <linux/ioport.h> + + /* generic reg access functions */ + #define ltq_r32(reg) __raw_readl(reg) +@@ -18,40 +20,33 @@ + #define ltq_r8(reg) __raw_readb(reg) + #define ltq_w8(val, reg) __raw_writeb(val, reg) + +-/* register access macros for EBU and CGU */ +-#define ltq_ebu_w32(x, y) ltq_w32((x), ltq_ebu_membase + (y)) +-#define ltq_ebu_r32(x) ltq_r32(ltq_ebu_membase + (x)) +-#define ltq_cgu_w32(x, y) ltq_w32((x), ltq_cgu_membase + (y)) +-#define ltq_cgu_r32(x) ltq_r32(ltq_cgu_membase + (x)) +- +-extern __iomem void *ltq_ebu_membase; +-extern __iomem void *ltq_cgu_membase; +- + extern unsigned int ltq_get_cpu_ver(void); + extern unsigned int ltq_get_soc_type(void); + +-/* clock speeds */ +-#define CLOCK_60M 60000000 +-#define CLOCK_83M 83333333 +-#define CLOCK_111M 111111111 +-#define CLOCK_133M 133333333 +-#define CLOCK_167M 166666667 +-#define CLOCK_200M 200000000 +-#define CLOCK_266M 266666666 +-#define CLOCK_333M 333333333 +-#define CLOCK_400M 400000000 +- + /* spinlock all ebu i/o */ + extern spinlock_t ebu_lock; + ++/* request a non-gpio and set the PIO config */ ++extern int ltq_gpio_request(struct device *dev, unsigned int pin, ++ unsigned int mux, unsigned int dir, const char *name); ++ + /* some irq helpers */ + extern void ltq_disable_irq(struct irq_data *data); + extern void ltq_mask_and_ack_irq(struct irq_data *data); + extern void ltq_enable_irq(struct irq_data *data); + ++/* clock handling */ ++extern int clk_activate(struct clk *clk); ++extern void clk_deactivate(struct clk *clk); ++extern struct clk *clk_get_cpu(void); ++extern struct clk *clk_get_fpi(void); ++extern struct clk *clk_get_io(void); ++ + /* find out what caused the last cpu reset */ + extern int ltq_reset_cause(void); +-#define LTQ_RST_CAUSE_WDTRST 0x20 ++ ++/* helper for requesting and remapping resources */ ++extern void __iomem *ltq_remap_resource(struct resource *res); + + #define IOPORT_RESOURCE_START 0x10000000 + #define IOPORT_RESOURCE_END 0xffffffff +diff --git a/arch/mips/include/asm/mach-lantiq/lantiq_platform.h b/arch/mips/include/asm/mach-lantiq/lantiq_platform.h +index a305f1d..38ed938 100644 +--- a/arch/mips/include/asm/mach-lantiq/lantiq_platform.h ++++ b/arch/mips/include/asm/mach-lantiq/lantiq_platform.h +@@ -50,4 +50,13 @@ struct ltq_eth_data { + int mii_mode; + }; + ++ ++struct ltq_spi_platform_data { ++ u16 num_chipselect; ++}; ++ ++struct ltq_spi_controller_data { ++ unsigned gpio; ++}; ++ + #endif +diff --git a/arch/mips/pci/Makefile b/arch/mips/pci/Makefile +index c3ac4b0..31e70c5 100644 +--- a/arch/mips/pci/Makefile ++++ b/arch/mips/pci/Makefile +@@ -41,7 +41,10 @@ obj-$(CONFIG_SIBYTE_SB1250) += fixup-sb1250.o pci-sb1250.o + obj-$(CONFIG_SIBYTE_BCM112X) += fixup-sb1250.o pci-sb1250.o + obj-$(CONFIG_SIBYTE_BCM1x80) += pci-bcm1480.o pci-bcm1480ht.o + obj-$(CONFIG_SNI_RM) += fixup-sni.o ops-sni.o +-obj-$(CONFIG_SOC_XWAY) += pci-lantiq.o ops-lantiq.o ++obj-$(CONFIG_LANTIQ) += fixup-lantiq.o ++obj-$(CONFIG_PCI_LANTIQ) += pci-lantiq.o ops-lantiq.o ++obj-$(CONFIG_PCIE_LANTIQ) += pcie-lantiq-phy.o pcie-lantiq.o fixup-lantiq-pcie.o ++obj-$(CONFIG_PCIE_LANTIQ_MSI) += pcie-lantiq-msi.o + obj-$(CONFIG_TANBAC_TB0219) += fixup-tb0219.o + obj-$(CONFIG_TANBAC_TB0226) += fixup-tb0226.o + obj-$(CONFIG_TANBAC_TB0287) += fixup-tb0287.o +diff --git a/arch/mips/pci/ops-lantiq.c b/arch/mips/pci/ops-lantiq.c +index 1f2afb5..5cbb0cf 100644 +--- a/arch/mips/pci/ops-lantiq.c ++++ b/arch/mips/pci/ops-lantiq.c +@@ -41,7 +41,7 @@ static int ltq_pci_config_access(unsigned char access_type, struct pci_bus *bus, + + spin_lock_irqsave(&ebu_lock, flags); + +- cfg_base = (unsigned long) ltq_pci_mapped_cfg; ++ cfg_base = (unsigned long) ltq_pci_cfgbase; + cfg_base |= (bus->number << LTQ_PCI_CFG_BUSNUM_SHF) | (devfn << + LTQ_PCI_CFG_FUNNUM_SHF) | (where & ~0x3); + +@@ -55,11 +55,11 @@ static int ltq_pci_config_access(unsigned char access_type, struct pci_bus *bus, + wmb(); + + /* clean possible Master abort */ +- cfg_base = (unsigned long) ltq_pci_mapped_cfg; ++ cfg_base = (unsigned long) ltq_pci_cfgbase; + cfg_base |= (0x0 << LTQ_PCI_CFG_FUNNUM_SHF) + 4; + temp = ltq_r32(((u32 *)(cfg_base))); + temp = swab32(temp); +- cfg_base = (unsigned long) ltq_pci_mapped_cfg; ++ cfg_base = (unsigned long) ltq_pci_cfgbase; + cfg_base |= (0x68 << LTQ_PCI_CFG_FUNNUM_SHF) + 4; + ltq_w32(temp, ((u32 *)cfg_base)); + +diff --git a/arch/mips/pci/pci-lantiq.c b/arch/mips/pci/pci-lantiq.c +index be1e1af..7a29738 100644 +--- a/arch/mips/pci/pci-lantiq.c ++++ b/arch/mips/pci/pci-lantiq.c +@@ -65,45 +65,42 @@ + #define ltq_pci_w32(x, y) ltq_w32((x), ltq_pci_membase + (y)) + #define ltq_pci_r32(x) ltq_r32(ltq_pci_membase + (x)) + +-#define ltq_pci_cfg_w32(x, y) ltq_w32((x), ltq_pci_mapped_cfg + (y)) +-#define ltq_pci_cfg_r32(x) ltq_r32(ltq_pci_mapped_cfg + (x)) ++#define ltq_pci_cfg_w32(x, y) ltq_w32((x), ltq_pci_cfgbase + (y)) ++#define ltq_pci_cfg_r32(x) ltq_r32(ltq_pci_cfgbase + (x)) + + struct ltq_pci_gpio_map { + int pin; +- int alt0; +- int alt1; ++ int mux; + int dir; + char *name; + }; + + /* the pci core can make use of the following gpios */ + static struct ltq_pci_gpio_map ltq_pci_gpio_map[] = { +- { 0, 1, 0, 0, "pci-exin0" }, +- { 1, 1, 0, 0, "pci-exin1" }, +- { 2, 1, 0, 0, "pci-exin2" }, +- { 39, 1, 0, 0, "pci-exin3" }, +- { 10, 1, 0, 0, "pci-exin4" }, +- { 9, 1, 0, 0, "pci-exin5" }, +- { 30, 1, 0, 1, "pci-gnt1" }, +- { 23, 1, 0, 1, "pci-gnt2" }, +- { 19, 1, 0, 1, "pci-gnt3" }, +- { 38, 1, 0, 1, "pci-gnt4" }, +- { 29, 1, 0, 0, "pci-req1" }, +- { 31, 1, 0, 0, "pci-req2" }, +- { 3, 1, 0, 0, "pci-req3" }, +- { 37, 1, 0, 0, "pci-req4" }, ++ { 0, 2, 0, "pci-exin0" }, ++ { 1, 2, 0, "pci-exin1" }, ++ { 2, 2, 0, "pci-exin2" }, ++ { 39, 2, 0, "pci-exin3" }, ++ { 10, 2, 0, "pci-exin4" }, ++ { 9, 2, 0, "pci-exin5" }, ++ { 30, 2, 1, "pci-gnt1" }, ++ { 23, 2, 1, "pci-gnt2" }, ++ { 19, 2, 1, "pci-gnt3" }, ++ { 38, 2, 1, "pci-gnt4" }, ++ { 29, 2, 0, "pci-req1" }, ++ { 31, 2, 0, "pci-req2" }, ++ { 3, 2, 0, "pci-req3" }, ++ { 37, 2, 0, "pci-req4" }, + }; + +-__iomem void *ltq_pci_mapped_cfg; ++__iomem void *ltq_pci_cfgbase; + static __iomem void *ltq_pci_membase; + +-int (*ltqpci_plat_dev_init)(struct pci_dev *dev) = NULL; +- + /* Since the PCI REQ pins can be reused for other functionality, make it + possible to exclude those from interpretation by the PCI controller */ + static int ltq_pci_req_mask = 0xf; + +-static int *ltq_pci_irq_map; ++extern int *ltq_pci_irq_map; + + struct pci_ops ltq_pci_ops = { + .read = ltq_pci_read_config_dword, +@@ -132,14 +129,6 @@ static struct pci_controller ltq_pci_controller = { + .io_offset = 0x00000000UL, + }; + +-int pcibios_plat_dev_init(struct pci_dev *dev) +-{ +- if (ltqpci_plat_dev_init) +- return ltqpci_plat_dev_init(dev); +- +- return 0; +-} +- + static u32 ltq_calc_bar11mask(void) + { + u32 mem, bar11mask; +@@ -151,25 +140,26 @@ static u32 ltq_calc_bar11mask(void) + return bar11mask; + } + +-static void ltq_pci_setup_gpio(int gpio) ++static void ltq_pci_setup_gpio(struct device *dev) + { ++ struct ltq_pci_data *conf = (struct ltq_pci_data *) dev->platform_data; + int i; + for (i = 0; i < ARRAY_SIZE(ltq_pci_gpio_map); i++) { +- if (gpio & (1 << i)) { +- ltq_gpio_request(ltq_pci_gpio_map[i].pin, +- ltq_pci_gpio_map[i].alt0, +- ltq_pci_gpio_map[i].alt1, ++ if (conf->gpio & (1 << i)) { ++ ltq_gpio_request(dev, ltq_pci_gpio_map[i].pin, ++ ltq_pci_gpio_map[i].mux, + ltq_pci_gpio_map[i].dir, + ltq_pci_gpio_map[i].name); + } + } +- ltq_gpio_request(21, 0, 0, 1, "pci-reset"); +- ltq_pci_req_mask = (gpio >> PCI_REQ_SHIFT) & PCI_REQ_MASK; ++ ltq_gpio_request(dev, 21, 0, 1, "pci-reset"); ++ ltq_pci_req_mask = (conf->gpio >> PCI_REQ_SHIFT) & PCI_REQ_MASK; + } + +-static int __devinit ltq_pci_startup(struct ltq_pci_data *conf) ++static int __devinit ltq_pci_startup(struct device *dev) + { + u32 temp_buffer; ++ struct ltq_pci_data *conf = (struct ltq_pci_data *) dev->platform_data; + + /* set clock to 33Mhz */ + if (ltq_is_ar9()) { +@@ -192,7 +182,7 @@ static int __devinit ltq_pci_startup(struct ltq_pci_data *conf) + } + + /* setup pci clock and gpis used by pci */ +- ltq_pci_setup_gpio(conf->gpio); ++ ltq_pci_setup_gpio(dev); + + /* enable auto-switching between PCI and EBU */ + ltq_pci_w32(0xa, PCI_CR_CLK_CTRL); +@@ -256,16 +246,6 @@ static int __devinit ltq_pci_startup(struct ltq_pci_data *conf) + return 0; + } + +-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) +-{ +- if (ltq_pci_irq_map[slot]) +- return ltq_pci_irq_map[slot]; +- printk(KERN_ERR "lq_pci: trying to map irq for unknown slot %d\n", +- slot); +- +- return 0; +-} +- + static int __devinit ltq_pci_probe(struct platform_device *pdev) + { + struct ltq_pci_data *ltq_pci_data = +@@ -273,11 +253,11 @@ static int __devinit ltq_pci_probe(struct platform_device *pdev) + pci_probe_only = 0; + ltq_pci_irq_map = ltq_pci_data->irq; + ltq_pci_membase = ioremap_nocache(PCI_CR_BASE_ADDR, PCI_CR_SIZE); +- ltq_pci_mapped_cfg = ++ ltq_pci_cfgbase = + ioremap_nocache(LTQ_PCI_CFG_BASE, LTQ_PCI_CFG_BASE); + ltq_pci_controller.io_map_base = + (unsigned long)ioremap(LTQ_PCI_IO_BASE, LTQ_PCI_IO_SIZE - 1); +- ltq_pci_startup(ltq_pci_data); ++ ltq_pci_startup(&pdev->dev); + register_pci_controller(<q_pci_controller); + + return 0; +diff --git a/arch/mips/pci/pci-lantiq.h b/arch/mips/pci/pci-lantiq.h +index 66bf6cd..c4721b4 100644 +--- a/arch/mips/pci/pci-lantiq.h ++++ b/arch/mips/pci/pci-lantiq.h +@@ -9,7 +9,7 @@ + #ifndef _LTQ_PCI_H__ + #define _LTQ_PCI_H__ + +-extern __iomem void *ltq_pci_mapped_cfg; ++extern __iomem void *ltq_pci_cfgbase; + extern int ltq_pci_read_config_dword(struct pci_bus *bus, + unsigned int devfn, int where, int size, u32 *val); + extern int ltq_pci_write_config_dword(struct pci_bus *bus, +diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c +index 1552150..cd034a9 100644 +--- a/arch/mips/pci/pci.c ++++ b/arch/mips/pci/pci.c +@@ -201,6 +201,31 @@ static int __init pcibios_init(void) + + subsys_initcall(pcibios_init); + ++int pcibios_host_nr(void) ++{ ++ int count; ++ struct pci_controller *hose; ++ for (count = 0, hose = hose_head; hose; hose = hose->next, count++) { ++ ; ++ } ++ return count; ++} ++EXPORT_SYMBOL(pcibios_host_nr); ++ ++int pcibios_1st_host_bus_nr(void) ++{ ++ int bus_nr = 0; ++ struct pci_controller *hose = hose_head; ++ ++ if (hose != NULL) { ++ if (hose->bus != NULL) { ++ bus_nr = hose->bus->subordinate + 1; ++ } ++ } ++ return bus_nr; ++} ++EXPORT_SYMBOL(pcibios_1st_host_bus_nr); ++ + static int pcibios_enable_resources(struct pci_dev *dev, int mask) + { + u16 cmd, old_cmd; +-- +1.7.9.1 + |