diff options
Diffstat (limited to 'arch/powerpc/platforms/85xx/mpc85xx_ads.c')
| -rw-r--r-- | arch/powerpc/platforms/85xx/mpc85xx_ads.c | 269 |
1 files changed, 82 insertions, 187 deletions
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ads.c b/arch/powerpc/platforms/85xx/mpc85xx_ads.c index c56fce57621..7d12a19aa7e 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_ads.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_ads.c @@ -17,35 +17,28 @@ #include <linux/kdev_t.h> #include <linux/delay.h> #include <linux/seq_file.h> -#include <linux/root_dev.h> +#include <linux/of_platform.h> -#include <asm/system.h> #include <asm/time.h> #include <asm/machdep.h> #include <asm/pci-bridge.h> -#include <asm/mpc85xx.h> -#include <asm/prom.h> #include <asm/mpic.h> #include <mm/mmu_decl.h> #include <asm/udbg.h> #include <sysdev/fsl_soc.h> -#include "mpc85xx.h" +#include <sysdev/fsl_pci.h> #ifdef CONFIG_CPM2 -#include <linux/fs_enet_pd.h> #include <asm/cpm2.h> #include <sysdev/cpm2_pic.h> -#include <asm/fs_pd.h> #endif -#ifndef CONFIG_PCI -unsigned long isa_io_base = 0; -unsigned long isa_mem_base = 0; -#endif +#include "mpc85xx.h" #ifdef CONFIG_PCI -static int mpc85xx_exclude_device(u_char bus, u_char devfn) +static int mpc85xx_exclude_device(struct pci_controller *hose, + u_char bus, u_char devfn) { if (bus == 0 && PCI_SLOT(devfn) == 0) return PCIBIOS_DEVICE_NOT_FOUND; @@ -54,235 +47,137 @@ static int mpc85xx_exclude_device(u_char bus, u_char devfn) } #endif /* CONFIG_PCI */ -#ifdef CONFIG_CPM2 - -static void cpm2_cascade(unsigned int irq, struct irq_desc *desc) -{ - int cascade_irq; - - while ((cascade_irq = cpm2_get_irq()) >= 0) { - generic_handle_irq(cascade_irq); - } - desc->chip->eoi(irq); -} - -#endif /* CONFIG_CPM2 */ - static void __init mpc85xx_ads_pic_init(void) { - struct mpic *mpic; - struct resource r; - struct device_node *np = NULL; -#ifdef CONFIG_CPM2 - int irq; -#endif - - np = of_find_node_by_type(np, "open-pic"); - - if (np == NULL) { - printk(KERN_ERR "Could not find open-pic node\n"); - return; - } - - if(of_address_to_resource(np, 0, &r)) { - printk(KERN_ERR "Could not map mpic register space\n"); - of_node_put(np); - return; - } - - mpic = mpic_alloc(np, r.start, - MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, - 4, 0, " OpenPIC "); + struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN, + 0, 256, " OpenPIC "); BUG_ON(mpic == NULL); - of_node_put(np); - - mpic_assign_isu(mpic, 0, r.start + 0x10200); - mpic_assign_isu(mpic, 1, r.start + 0x10280); - mpic_assign_isu(mpic, 2, r.start + 0x10300); - mpic_assign_isu(mpic, 3, r.start + 0x10380); - mpic_assign_isu(mpic, 4, r.start + 0x10400); - mpic_assign_isu(mpic, 5, r.start + 0x10480); - mpic_assign_isu(mpic, 6, r.start + 0x10500); - mpic_assign_isu(mpic, 7, r.start + 0x10580); - - /* Unused on this platform (leave room for 8548) */ - mpic_assign_isu(mpic, 8, r.start + 0x10600); - mpic_assign_isu(mpic, 9, r.start + 0x10680); - mpic_assign_isu(mpic, 10, r.start + 0x10700); - mpic_assign_isu(mpic, 11, r.start + 0x10780); - - /* External Interrupts */ - mpic_assign_isu(mpic, 12, r.start + 0x10000); - mpic_assign_isu(mpic, 13, r.start + 0x10080); - mpic_assign_isu(mpic, 14, r.start + 0x10100); - mpic_init(mpic); -#ifdef CONFIG_CPM2 - /* Setup CPM2 PIC */ - np = of_find_node_by_type(NULL, "cpm-pic"); - if (np == NULL) { - printk(KERN_ERR "PIC init: can not find cpm-pic node\n"); - return; - } - irq = irq_of_parse_and_map(np, 0); - - cpm2_pic_init(np); - set_irq_chained_handler(irq, cpm2_cascade); -#endif + mpc85xx_cpm2_pic_init(); } /* * Setup the architecture */ #ifdef CONFIG_CPM2 -void init_fcc_ioports(struct fs_platform_info *fpi) -{ - struct io_port *io = cpm2_map(im_ioport); - int fcc_no = fs_get_fcc_index(fpi->fs_no); - int target; - u32 tempval; - - switch(fcc_no) { - case 1: - tempval = in_be32(&io->iop_pdirb); - tempval &= ~PB2_DIRB0; - tempval |= PB2_DIRB1; - out_be32(&io->iop_pdirb, tempval); - - tempval = in_be32(&io->iop_psorb); - tempval &= ~PB2_PSORB0; - tempval |= PB2_PSORB1; - out_be32(&io->iop_psorb, tempval); - - tempval = in_be32(&io->iop_pparb); - tempval |= (PB2_DIRB0 | PB2_DIRB1); - out_be32(&io->iop_pparb, tempval); - - target = CPM_CLK_FCC2; - break; - case 2: - tempval = in_be32(&io->iop_pdirb); - tempval &= ~PB3_DIRB0; - tempval |= PB3_DIRB1; - out_be32(&io->iop_pdirb, tempval); - - tempval = in_be32(&io->iop_psorb); - tempval &= ~PB3_PSORB0; - tempval |= PB3_PSORB1; - out_be32(&io->iop_psorb, tempval); - - tempval = in_be32(&io->iop_pparb); - tempval |= (PB3_DIRB0 | PB3_DIRB1); - out_be32(&io->iop_pparb, tempval); +struct cpm_pin { + int port, pin, flags; +}; - tempval = in_be32(&io->iop_pdirc); - tempval |= PC3_DIRC1; - out_be32(&io->iop_pdirc, tempval); +static const struct cpm_pin mpc8560_ads_pins[] = { + /* SCC1 */ + {3, 29, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, + {3, 30, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, + {3, 31, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + + /* SCC2 */ + {2, 12, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {2, 13, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {3, 26, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, + {3, 27, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, + {3, 28, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + + /* FCC2 */ + {1, 18, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {1, 19, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {1, 20, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {1, 21, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {1, 22, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, + {1, 23, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, + {1, 24, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, + {1, 25, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, + {1, 26, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {1, 27, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {1, 28, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {1, 29, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, + {1, 30, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {1, 31, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, + {2, 18, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* CLK14 */ + {2, 19, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* CLK13 */ + + /* FCC3 */ + {1, 4, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, + {1, 5, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, + {1, 6, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, + {1, 8, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {1, 9, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {1, 10, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {1, 11, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {1, 12, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {1, 13, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {1, 14, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, + {1, 15, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, + {1, 16, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {1, 17, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {2, 16, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* CLK16 */ + {2, 17, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* CLK15 */ + {2, 27, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, +}; - tempval = in_be32(&io->iop_pparc); - tempval |= PC3_DIRC1; - out_be32(&io->iop_pparc, tempval); +static void __init init_ioports(void) +{ + int i; - target = CPM_CLK_FCC3; - break; - default: - printk(KERN_ERR "init_fcc_ioports: invalid FCC number\n"); - return; + for (i = 0; i < ARRAY_SIZE(mpc8560_ads_pins); i++) { + const struct cpm_pin *pin = &mpc8560_ads_pins[i]; + cpm2_set_pin(pin->port, pin->pin, pin->flags); } - /* Port C has clocks...... */ - tempval = in_be32(&io->iop_psorc); - tempval &= ~(PC_CLK(fpi->clk_rx - 8) | PC_CLK(fpi->clk_tx - 8)); - out_be32(&io->iop_psorc, tempval); - - tempval = in_be32(&io->iop_pdirc); - tempval &= ~(PC_CLK(fpi->clk_rx - 8) | PC_CLK(fpi->clk_tx - 8)); - out_be32(&io->iop_pdirc, tempval); - tempval = in_be32(&io->iop_pparc); - tempval |= (PC_CLK(fpi->clk_rx - 8) | PC_CLK(fpi->clk_tx - 8)); - out_be32(&io->iop_pparc, tempval); - - cpm2_unmap(io); - - /* Configure Serial Interface clock routing. - * First, clear FCC bits to zero, - * then set the ones we want. - */ - cpm2_clk_setup(target, fpi->clk_rx, CPM_CLK_RX); - cpm2_clk_setup(target, fpi->clk_tx, CPM_CLK_TX); + cpm2_clk_setup(CPM_CLK_SCC1, CPM_BRG1, CPM_CLK_RX); + cpm2_clk_setup(CPM_CLK_SCC1, CPM_BRG1, CPM_CLK_TX); + cpm2_clk_setup(CPM_CLK_SCC2, CPM_BRG2, CPM_CLK_RX); + cpm2_clk_setup(CPM_CLK_SCC2, CPM_BRG2, CPM_CLK_TX); + cpm2_clk_setup(CPM_CLK_FCC2, CPM_CLK13, CPM_CLK_RX); + cpm2_clk_setup(CPM_CLK_FCC2, CPM_CLK14, CPM_CLK_TX); + cpm2_clk_setup(CPM_CLK_FCC3, CPM_CLK15, CPM_CLK_RX); + cpm2_clk_setup(CPM_CLK_FCC3, CPM_CLK16, CPM_CLK_TX); } #endif static void __init mpc85xx_ads_setup_arch(void) { - struct device_node *cpu; -#ifdef CONFIG_PCI - struct device_node *np; -#endif - if (ppc_md.progress) ppc_md.progress("mpc85xx_ads_setup_arch()", 0); - cpu = of_find_node_by_type(NULL, "cpu"); - if (cpu != 0) { - const unsigned int *fp; - - fp = get_property(cpu, "clock-frequency", NULL); - if (fp != 0) - loops_per_jiffy = *fp / HZ; - else - loops_per_jiffy = 50000000 / HZ; - of_node_put(cpu); - } - #ifdef CONFIG_CPM2 cpm2_reset(); + init_ioports(); #endif #ifdef CONFIG_PCI - for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;) - add_bridge(np); ppc_md.pci_exclude_device = mpc85xx_exclude_device; #endif -#ifdef CONFIG_ROOT_NFS - ROOT_DEV = Root_NFS; -#else - ROOT_DEV = Root_HDA1; -#endif + fsl_pci_assign_primary(); } static void mpc85xx_ads_show_cpuinfo(struct seq_file *m) { uint pvid, svid, phid1; - uint memsize = total_memory; pvid = mfspr(SPRN_PVR); svid = mfspr(SPRN_SVR); seq_printf(m, "Vendor\t\t: Freescale Semiconductor\n"); - seq_printf(m, "Machine\t\t: mpc85xx\n"); seq_printf(m, "PVR\t\t: 0x%x\n", pvid); seq_printf(m, "SVR\t\t: 0x%x\n", svid); /* Display cpu Pll setting */ phid1 = mfspr(SPRN_HID1); seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f)); - - /* Display the amount of memory */ - seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024)); } +machine_arch_initcall(mpc85xx_ads, mpc85xx_common_publish_devices); + /* * Called very early, device-tree isn't unflattened */ static int __init mpc85xx_ads_probe(void) { - /* We always match for now, eventually we should look at the flat - dev tree to ensure this is the board we are suppose to run on - */ - return 1; + unsigned long root = of_get_flat_dt_root(); + + return of_flat_dt_is_compatible(root, "MPC85xxADS"); } define_machine(mpc85xx_ads) { @@ -292,7 +187,7 @@ define_machine(mpc85xx_ads) { .init_IRQ = mpc85xx_ads_pic_init, .show_cpuinfo = mpc85xx_ads_show_cpuinfo, .get_irq = mpic_get_irq, - .restart = mpc85xx_restart, + .restart = fsl_rstcr_restart, .calibrate_decr = generic_calibrate_decr, .progress = udbg_progress, }; |
