From: Wolfgang Grandegger wg@grandegger.com
This patch adds support for PCI express cards. The board support now uses common FSL PCI init code, for both, PCI and PCIe on all TQM85xx modules.
Signed-off-by: Thomas Waehner thomas.waehner@tqs.de Signed-off-by: Wolfgang Grandegger wg@grandegger.com --- board/tqc/tqm85xx/law.c | 15 +++- board/tqc/tqm85xx/tlb.c | 30 ++++++ board/tqc/tqm85xx/tqm85xx.c | 205 ++++++++++++++++++++++++++++++++++++------- include/configs/TQM85xx.h | 35 +++++++- 4 files changed, 249 insertions(+), 36 deletions(-)
diff --git a/board/tqc/tqm85xx/law.c b/board/tqc/tqm85xx/law.c index ad35464..bec1ed5 100644 --- a/board/tqc/tqm85xx/law.c +++ b/board/tqc/tqm85xx/law.c @@ -32,11 +32,11 @@ * * 0x0000_0000 0x7fff_ffff DDR 2G * 0x8000_0000 0x9fff_ffff PCI1 MEM 512M - * 0xc000_0000 0xdfff_ffff RapidIO 512M + * 0xc000_0000 0xdfff_ffff RapidIO or PCI express 512M * 0xe000_0000 0xe000_ffff CCSR 1M * 0xe200_0000 0xe2ff_ffff PCI1 IO 16M * 0xe300_0000 0xe3ff_ffff CAN 16M - * 0xf800_0000 0xf80f_ffff BCSR 1M + * 0xef00_0000 0xefff_ffff PCI express IO 16M * 0xfe00_0000 0xffff_ffff FLASH (boot bank) 32M * * Notes: @@ -49,10 +49,17 @@ struct law_entry law_table[] = { SET_LAW_ENTRY (2, CFG_PCI1_MEM_PHYS, LAW_SIZE_512M, LAW_TRGT_IF_PCI), SET_LAW_ENTRY (3, CFG_LBC_FLASH_BASE, LAW_SIZE_128M, LAW_TRGT_IF_LBC), SET_LAW_ENTRY (4, CFG_PCI1_IO_PHYS, LAW_SIZE_16M, LAW_TRGT_IF_PCI), - SET_LAW_ENTRY (5, CFG_RIO_MEM_BASE, LAWAR_SIZE_512M, LAW_TRGT_IF_RIO), +#ifdef CONFIG_PCIE1 + SET_LAW_ENTRY (5, CFG_PCIE1_MEM_BASE, LAW_SIZE_512M, LAW_TRGT_IF_PCIE_1), +#else /* !CONFIG_PCIE1 */ + SET_LAW_ENTRY (5, CFG_RIO_MEM_BASE, LAW_SIZE_512M, LAW_TRGT_IF_RIO), +#endif /* CONFIG_PCIE1 */ #ifdef CONFIG_CAN_DRIVER - SET_LAW_ENTRY (6, CFG_CAN_BASE, LAWAR_SIZE_16M, LAW_TRGT_IF_LBC), + SET_LAW_ENTRY (6, CFG_CAN_BASE, LAW_SIZE_16M, LAW_TRGT_IF_LBC), #endif /* CONFIG_CAN_DRIVER */ +#ifdef CONFIG_PCIE1 + SET_LAW_ENTRY (7, CFG_PCIE1_IO_BASE, LAW_SIZE_16M, LAW_TRGT_IF_PCIE_1), +#endif /* CONFIG_PCIE */ };
int num_law_entries = ARRAY_SIZE (law_table); diff --git a/board/tqc/tqm85xx/tlb.c b/board/tqc/tqm85xx/tlb.c index dc36201..7c4b9a1 100644 --- a/board/tqc/tqm85xx/tlb.c +++ b/board/tqc/tqm85xx/tlb.c @@ -74,6 +74,24 @@ struct fsl_e_tlb_entry tlb_table[] = { MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G, 0, 3, BOOKE_PAGESZ_256M, 1),
+#ifdef CONFIG_PCIE1 + /* + * TLB 4: 256M Non-cacheable, guarded + * 0xc0000000 256M PCI express MEM First half + */ + SET_TLB_ENTRY (1, CFG_PCIE1_MEM_BASE, CFG_PCIE1_MEM_BASE, + MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G, + 0, 4, BOOKE_PAGESZ_256M, 1), + + /* + * TLB 5: 256M Non-cacheable, guarded + * 0xd0000000 256M PCI express MEM Second half + */ + SET_TLB_ENTRY (1, CFG_PCIE1_MEM_BASE + 0x10000000, + CFG_PCIE1_MEM_BASE + 0x10000000, + MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G, + 0, 5, BOOKE_PAGESZ_256M, 1), +#else /* !CONFIG_PCIE */ /* * TLB 4: 256M Non-cacheable, guarded * 0xc0000000 256M Rapid IO MEM First half @@ -90,6 +108,7 @@ struct fsl_e_tlb_entry tlb_table[] = { CFG_RIO_MEM_BASE + 0x10000000, MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G, 0, 5, BOOKE_PAGESZ_256M, 1), +#endif /* CONFIG_PCIE */
/* * TLB 6: 64M Non-cacheable, guarded @@ -116,6 +135,17 @@ struct fsl_e_tlb_entry tlb_table[] = { CFG_DDR_SDRAM_BASE + 0x10000000, MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G, 0, 8, BOOKE_PAGESZ_256M, 1), + +#ifdef CONFIG_PCIE1 + /* + * TLB 9: 16M Non-cacheable, guarded + * 0xef000000 16M PCI express IO + */ + SET_TLB_ENTRY (1, CFG_PCIE1_IO_BASE, CFG_PCIE1_IO_BASE, + MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G, + 0, 9, BOOKE_PAGESZ_16M, 1), +#endif /* CONFIG_PCIE */ + };
int num_tlb_entries = ARRAY_SIZE (tlb_table); diff --git a/board/tqc/tqm85xx/tqm85xx.c b/board/tqc/tqm85xx/tqm85xx.c index f96cec3..f1c2e58 100644 --- a/board/tqc/tqm85xx/tqm85xx.c +++ b/board/tqc/tqm85xx/tqm85xx.c @@ -36,6 +36,7 @@ #include <pci.h> #include <asm/processor.h> #include <asm/immap_85xx.h> +#include <asm/immap_fsl_pci.h> #include <asm/io.h> #include <ioports.h> #include <flash.h> @@ -257,13 +258,6 @@ int checkboard (void) } putc ('\n');
-#ifdef CONFIG_PCI - printf ("PCI1: 32 bit, %d MHz (compiled)\n", - CONFIG_SYS_CLK_FREQ / 1000000); -#else - printf ("PCI1: disabled\n"); -#endif - /* * Initialize local bus. */ @@ -537,38 +531,180 @@ void local_bus_init (void) #endif /* CONFIG_CAN_DRIVER */ }
-#if defined(CONFIG_PCI) /* * Initialize PCI Devices, report devices found. */ +static int first_free_busno;
-#ifndef CONFIG_PCI_PNP -static struct pci_config_table pci_mpc85xxads_config_table[] = { - {PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, - PCI_IDSEL_NUMBER, PCI_ANY_ID, - pci_cfgfunc_config_device, {PCI_ENET0_IOADDR, - PCI_ENET0_MEMADDR, - PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER}}, - {} -}; -#endif +#if defined(CONFIG_PCI) || defined(CONFIG_PCI1) +static struct pci_controller pci1_hose; +#endif /* CONFIG_PCI || CONFIG_PCI1 */
-static struct pci_controller hose = { -#ifndef CONFIG_PCI_PNP - config_table:pci_mpc85xxads_config_table, +#ifdef CONFIG_PCIE1 +static struct pci_controller pcie1_hose; +#endif /* CONFIG_PCIE1 */ + +static inline void init_pci1(void) +{ + volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR); +#if defined(CONFIG_PCI) || defined(CONFIG_PCI1) + uint host_agent = (gur->porbmsr & MPC85xx_PORBMSR_HA) >> 16; + volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *)CFG_PCI1_ADDR; + extern void fsl_pci_init(struct pci_controller *hose); + struct pci_controller *hose = &pci1_hose; + + /* PORDEVSR[15] */ + uint pci_32 = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32; + /* PORDEVSR[14] */ + uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB; + /* PORPLLSR[16] */ + uint pci_clk_sel = gur->porpllsr & MPC85xx_PORDEVSR_PCI1_SPD; + + uint pci_agent = (host_agent == 3) || (host_agent == 4 ) || + (host_agent == 6); + + uint pci_speed = CONFIG_SYS_CLK_FREQ; /* PCI PSPEED in [4:5] */ + + if (!(gur->devdisr & MPC85xx_DEVDISR_PCI1)) { + printf ("PCI1: %d bit, %s MHz, %s, %s, %s\n", + (pci_32) ? 32 : 64, + (pci_speed == 33333333) ? "33" : + (pci_speed == 66666666) ? "66" : "unknown", + pci_clk_sel ? "sync" : "async", + pci_agent ? "agent" : "host", + pci_arb ? "arbiter" : "external-arbiter"); + + + /* inbound */ + pci_set_region (hose->regions + 0, + CFG_PCI_MEMORY_BUS, + CFG_PCI_MEMORY_PHYS, + CFG_PCI_MEMORY_SIZE, + PCI_REGION_MEM | PCI_REGION_MEMORY); + + + /* outbound memory */ + pci_set_region (hose->regions + 1, + CFG_PCI1_MEM_BASE, + CFG_PCI1_MEM_PHYS, + CFG_PCI1_MEM_SIZE, + PCI_REGION_MEM); + + /* outbound io */ + pci_set_region (hose->regions + 2, + CFG_PCI1_IO_BASE, + CFG_PCI1_IO_PHYS, + CFG_PCI1_IO_SIZE, + PCI_REGION_IO); + + hose->region_count = 3; + + hose->first_busno = first_free_busno; + pci_setup_indirect (hose, (int)&pci->cfg_addr, + (int)&pci->cfg_data); + + fsl_pci_init (hose); + + printf (" PCI on bus %02x..%02x\n", + hose->first_busno, hose->last_busno); + + first_free_busno = hose->last_busno + 1; +#ifdef CONFIG_PCIX_CHECK + if (!(gur->pordevsr & PORDEVSR_PCI)) { + ushort reg16 = + PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ | + PCI_X_CMD_ERO | PCI_X_CMD_DPERR_E; + uint dev = PCI_BDF(hose->first_busno, 0, 0); + + /* PCI-X init */ + if (CONFIG_SYS_CLK_FREQ < 66000000) + puts ("PCI-X will only work at 66 MHz\n"); + + pci_hose_write_config_word (hose, dev, PCIX_COMMAND, + reg16); + } #endif -}; + } else { + puts ("PCI1: disabled\n"); + } +#else /* !(CONFIG_PCI || CONFIG_PCI1) */ + gur->devdisr |= MPC85xx_DEVDISR_PCI1; /* disable */ +#endif /* CONFIG_PCI || CONFIG_PCI1) */ +} + +static inline void init_pcie1(void) +{ + volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR); +#ifdef CONFIG_PCIE1 + uint io_sel = (gur->pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19; + uint host_agent = (gur->porbmsr & MPC85xx_PORBMSR_HA) >> 16; + volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *)CFG_PCIE1_ADDR; + extern void fsl_pci_init(struct pci_controller *hose); + struct pci_controller *hose = &pcie1_hose; + int pcie_ep = (host_agent == 0) || (host_agent == 2 ) || + (host_agent == 3); + + int pcie_configured = io_sel >= 1; + + if (pcie_configured && !(gur->devdisr & MPC85xx_DEVDISR_PCIE)){ + printf ("PCIe: %s, base address %x", + pcie_ep ? "End point" : "Root complex", (uint)pci); + + if (pci->pme_msg_det) { + pci->pme_msg_det = 0xffffffff; + debug (", with errors. Clearing. Now 0x%08x", + pci->pme_msg_det); + } + puts ("\n");
-#endif /* CONFIG_PCI */ + /* inbound */ + pci_set_region (hose->regions + 0, + CFG_PCI_MEMORY_BUS, + CFG_PCI_MEMORY_PHYS, + CFG_PCI_MEMORY_SIZE, + PCI_REGION_MEM | PCI_REGION_MEMORY); + + /* outbound memory */ + pci_set_region (hose->regions + 1, + CFG_PCIE1_MEM_BASE, + CFG_PCIE1_MEM_PHYS, + CFG_PCIE1_MEM_SIZE, + PCI_REGION_MEM); + + /* outbound io */ + pci_set_region (hose->regions + 2, + CFG_PCIE1_IO_BASE, + CFG_PCIE1_IO_PHYS, + CFG_PCIE1_IO_SIZE, + PCI_REGION_IO); + + hose->region_count = 3; + + hose->first_busno = first_free_busno; + pci_setup_indirect(hose, (int)&pci->cfg_addr, + (int)&pci->cfg_data); + + fsl_pci_init (hose); + printf (" PCIe on bus %02x..%02x\n", + hose->first_busno, hose->last_busno); + + first_free_busno = hose->last_busno + 1; + + } else { + printf ("PCIe: disabled\n"); + } +#else /* !CONFIG_PCIE1 */ + gur->devdisr |= MPC85xx_DEVDISR_PCIE; /* disable */ +#endif /* CONFIG_PCIE1 */ +}
void pci_init_board (void) { -#ifdef CONFIG_PCI - pci_mpc85xx_init (&hose); -#endif /* CONFIG_PCI */ + init_pci1(); + init_pcie1(); }
-#if defined(CONFIG_OF_BOARD_SETUP) +#ifdef CONFIG_OF_BOARD_SETUP void ft_board_setup (void *blob, bd_t *bd) { int node, tmp[2]; @@ -579,16 +715,23 @@ void ft_board_setup (void *blob, bd_t *bd) node = fdt_path_offset (blob, "/aliases"); tmp[0] = 0; if (node >= 0) { -#ifdef CONFIG_PCI +#if defined(CONFIG_PCI) || defined(CONFIG_PCI1) path = fdt_getprop (blob, node, "pci0", NULL); if (path) { - tmp[1] = hose.last_busno - hose.first_busno; + tmp[1] = pci1_hose.last_busno - pci1_hose.first_busno; do_fixup_by_path (blob, path, "bus-range", &tmp, 8, 1); } -#endif +#endif /* CONFIG_PCI || CONFIG_PCI1 */ +#ifdef CONFIG_PCIE1 + path = fdt_getprop (blob, node, "pci1", NULL); + if (path) { + tmp[1] = pcie1_hose.last_busno - pcie1_hose.first_busno; + do_fixup_by_path (blob, path, "bus-range", &tmp, 8, 1); + } +#endif /* CONFIG_PCIE1 */ } } -#endif +#endif /* CONFIG_OF_BOARD_SETUP */
#ifdef CONFIG_BOARD_EARLY_INIT_R int board_early_init_r (void) diff --git a/include/configs/TQM85xx.h b/include/configs/TQM85xx.h index a02d001..2155130 100644 --- a/include/configs/TQM85xx.h +++ b/include/configs/TQM85xx.h @@ -42,6 +42,14 @@ #define CONFIG_MPC85xx 1 /* MPC8540/60/55/41 */
#define CONFIG_PCI +#define CONFIG_FSL_PCI_INIT 1 /* Use common FSL init code */ +#define CONFIG_PCIX_CHECK /* PCIX olny works at 66 MHz */ +#ifdef CONFIG_TQM8548 +#define CONFIG_PCI1 +#define CONFIG_PCIE1 +#define CONFIG_FSL_PCIE_RESET 1 /* need PCIe reset errata */ +#endif + #define CONFIG_TSEC_ENET /* tsec ethernet support */
#define CONFIG_MISC_INIT_R 1 /* Call misc_init_r */ @@ -97,6 +105,10 @@ #define CFG_CCSRBAR_PHYS CFG_CCSRBAR /* physical addr of CCSRBAR */ #define CFG_IMMR CFG_CCSRBAR /* PQII uses CFG_IMMR */
+#define CFG_PCI1_ADDR (CFG_CCSRBAR + 0x8000) +#define CFG_PCI2_ADDR (CFG_CCSRBAR + 0x9000) +#define CFG_PCIE1_ADDR (CFG_CCSRBAR + 0xa000) + /* * DDR Setup */ @@ -282,10 +294,12 @@ #define CFG_DTT_LOW_TEMP -30 #define CFG_DTT_HYSTERESIS 3
+#ifndef CONFIG_PCIE1 /* RapidIO MMU */ #define CFG_RIO_MEM_BASE 0xc0000000 /* base address */ #define CFG_RIO_MEM_PHYS CFG_RIO_MEM_BASE -#define CFG_RIO_MEM_SIZE 0x20000000 /* 128M */ +#define CFG_RIO_MEM_SIZE 0x20000000 /* 512M */ +#endif /* CONFIG_PCIE1 */
/* * General PCI @@ -298,6 +312,25 @@ #define CFG_PCI1_IO_PHYS CFG_PCI1_IO_BASE #define CFG_PCI1_IO_SIZE 0x1000000 /* 16M */
+/* PCI view of System Memory */ +#define CFG_PCI_MEMORY_BUS 0x00000000 +#define CFG_PCI_MEMORY_PHYS 0x00000000 +#define CFG_PCI_MEMORY_SIZE 0x80000000 + +#ifdef CONFIG_PCIE1 +/* + * General PCI express + * Addresses are mapped 1-1. + */ +#define CFG_PCIE1_MEM_BASE 0xc0000000 +#define CFG_PCIE1_MEM_PHYS CFG_PCIE1_MEM_BASE +#define CFG_PCIE1_MEM_SIZE 0x20000000 /* 512M */ +#define CFG_PCIE1_IO_BASE 0xef000000 +#define CFG_PCIE1_IO_PHYS CFG_PCIE1_IO_BASE +#define CFG_PCIE1_IO_SIZE 0x1000000 /* 16M */ + +#endif /* CONFIG_PCIE1 */ + #if defined(CONFIG_PCI)
#define CONFIG_PCI_PNP /* do pci plug-and-play */