* RE: [PATCH] ppc32 :Added PCI support for MPC83xx
@ 2005-08-30 3:02 Li Tony-r64360
2005-08-30 4:27 ` Kumar Gala
2005-08-30 14:36 ` Dan Malek
0 siblings, 2 replies; 10+ messages in thread
From: Li Tony-r64360 @ 2005-08-30 3:02 UTC (permalink / raw)
To: Gala Kumar K.-galak; +Cc: Chu hanjin-r52514, linux-kernel, linuxppc-embedded
I think it is OK. The external interrupt can be edged. And it works well in my board.
Tony Li
-----Original Message-----
From: Gala Kumar K.-galak
Sent: Tuesday, August 30, 2005 1:43 AM
To: Li Tony-r64360
Cc: linuxppc-embedded; linux-kernel@vger.kernel.org; Gala Kumar K.-galak; Chu hanjin-r52514
Subject: Re: [PATCH] ppc32 :Added PCI support for MPC83xx
I noticed that you aren't updating the senses array in mpc834x_sys_init_IRQ for the PCI interrupt lines, is this correct?
Should they not be IRQ_SENSE_LEVEL?
Also, I've done a bit of cosmetic cleanup to the patch, take a look and let me know if it works. Once we close on the IRQ sense issue I will send this upstream.
- kumar
---
diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -713,6 +713,12 @@ config MPC834x_SYS
help
This option enables support for the MPC 834x SYS evaluation board.
+ Be aware that PCI buses can only function when SYS board is plugged on
+ PIB (Platform IO Board) board from Freescale which provide 3 PCI slots.
+ Just like PC,the board level initalization is bootloader`s responsiblilty.
+ The PCI deponds on bootloader configurate board corretly. Refer to Freescale
+ to get more information about this.
+
endchoice
config PQ2ADS
@@ -1193,6 +1199,11 @@ config PCI
config PCI_DOMAINS
bool
default PCI
+
+config MPC83xx_PCI2
+ bool " Supprt for 2nd PCI host controller"
+ depends on PCI && MPC834x
+ default y if MPC834x_SYS
config PCI_QSPAN
bool "QSpan PCI"
diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.c b/arch/ppc/platforms/83xx/mpc834x_sys.c
--- a/arch/ppc/platforms/83xx/mpc834x_sys.c
+++ b/arch/ppc/platforms/83xx/mpc834x_sys.c
@@ -62,9 +62,29 @@ extern unsigned long total_memory; /* in
unsigned char __res[sizeof (bd_t)];
#ifdef CONFIG_PCI
-#error "PCI is not supported"
-/* NEED mpc83xx_map_irq & mpc83xx_exclude_device
- see platforms/85xx/mpc85xx_ads_common.c */
+int
+mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char
+pin) {
+ static char pci_irq_table[][4] =
+ /*
+ * PCI IDSEL/INTPIN->INTLINE
+ * A B C D
+ */
+ {
+ {PIRQA, PIRQB, PIRQC, PIRQD}, /* idsel 0x11 */
+ {PIRQC, PIRQD, PIRQA, PIRQB}, /* idsel 0x12 */
+ {PIRQD, PIRQA, PIRQB, PIRQC} /* idsel 0x13 */
+ };
+
+ const long min_idsel = 0x11, max_idsel = 0x13, irqs_per_slot = 4;
+ return PCI_IRQ_TABLE_LOOKUP;
+}
+
+int
+mpc83xx_exclude_device(u_char bus, u_char devfn) {
+ return PCIBIOS_SUCCESSFUL;
+}
#endif /* CONFIG_PCI */
/* ************************************************************************
@@ -88,7 +108,7 @@ mpc834x_sys_setup_arch(void)
#ifdef CONFIG_PCI
/* setup PCI host bridges */
- mpc83xx_sys_setup_hose();
+ mpc83xx_setup_hose();
#endif
mpc83xx_early_serial_map();
diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.h b/arch/ppc/platforms/83xx/mpc834x_sys.h
--- a/arch/ppc/platforms/83xx/mpc834x_sys.h
+++ b/arch/ppc/platforms/83xx/mpc834x_sys.h
@@ -26,7 +26,7 @@
#define VIRT_IMMRBAR ((uint)0xfe000000)
#define BCSR_PHYS_ADDR ((uint)0xf8000000)
-#define BCSR_SIZE ((uint)(32 * 1024))
+#define BCSR_SIZE ((uint)(128 * 1024))
#define BCSR_MISC_REG2_OFF 0x07
#define BCSR_MISC_REG2_PORESET 0x01
@@ -34,23 +34,25 @@
#define BCSR_MISC_REG3_OFF 0x08
#define BCSR_MISC_REG3_CNFLOCK 0x80
-#ifdef CONFIG_PCI
-/* PCI interrupt controller */
-#define PIRQA MPC83xx_IRQ_IRQ4
-#define PIRQB MPC83xx_IRQ_IRQ5
-#define PIRQC MPC83xx_IRQ_IRQ6
-#define PIRQD MPC83xx_IRQ_IRQ7
-
-#define MPC834x_SYS_PCI1_LOWER_IO 0x00000000
-#define MPC834x_SYS_PCI1_UPPER_IO 0x00ffffff
-
-#define MPC834x_SYS_PCI1_LOWER_MEM 0x80000000
-#define MPC834x_SYS_PCI1_UPPER_MEM 0x9fffffff
-
-#define MPC834x_SYS_PCI1_IO_BASE 0xe2000000
-#define MPC834x_SYS_PCI1_MEM_OFFSET 0x00000000
-
-#define MPC834x_SYS_PCI1_IO_SIZE 0x01000000
-#endif /* CONFIG_PCI */
+#define PIRQA MPC83xx_IRQ_EXT4
+#define PIRQB MPC83xx_IRQ_EXT5
+#define PIRQC MPC83xx_IRQ_EXT6
+#define PIRQD MPC83xx_IRQ_EXT7
+
+#define MPC83xx_PCI1_LOWER_IO 0x00000000
+#define MPC83xx_PCI1_UPPER_IO 0x00ffffff
+#define MPC83xx_PCI1_LOWER_MEM 0x80000000
+#define MPC83xx_PCI1_UPPER_MEM 0x9fffffff
+#define MPC83xx_PCI1_IO_BASE 0xe2000000
+#define MPC83xx_PCI1_MEM_OFFSET 0x00000000
+#define MPC83xx_PCI1_IO_SIZE 0x01000000
+
+#define MPC83xx_PCI2_LOWER_IO 0x00000000
+#define MPC83xx_PCI2_UPPER_IO 0x00ffffff
+#define MPC83xx_PCI2_LOWER_MEM 0xa0000000
+#define MPC83xx_PCI2_UPPER_MEM 0xbfffffff
+#define MPC83xx_PCI2_IO_BASE 0xe3000000
+#define MPC83xx_PCI2_MEM_OFFSET 0x00000000
+#define MPC83xx_PCI2_IO_SIZE 0x01000000
#endif /* __MACH_MPC83XX_SYS_H__ */
diff --git a/arch/ppc/syslib/ppc83xx_pci.h b/arch/ppc/syslib/ppc83xx_pci.h new file mode 100644
--- /dev/null
+++ b/arch/ppc/syslib/ppc83xx_pci.h
@@ -0,0 +1,151 @@
+/* Created by Tony Li <tony.li@freescale.com>
+ * Copyright (c) 2005 freescale semiconductor
+ *
+ * This program is free software; you can redistribute it and/or
+modify it
+ * under the terms of the GNU General Public License as published by
+the
+ * Free Software Foundation; either version 2 of the License, or (at
+your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+along
+ * with this program; if not, write to the Free Software Foundation,
+Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __PPC_SYSLIB_PPC83XX_PCI_H
+#define __PPC_SYSLIB_PPC83XX_PCI_H
+
+typedef struct immr_clk {
+ u32 spmr; /* system PLL mode Register */
+ u32 occr; /* output clock control Register */
+ u32 sccr; /* system clock control Register */
+ u8 res0[0xF4];
+} immr_clk_t;
+
+/*
+ * Sequencer
+ */
+typedef struct immr_ios {
+ u32 potar0;
+ u8 res0[4];
+ u32 pobar0;
+ u8 res1[4];
+ u32 pocmr0;
+ u8 res2[4];
+ u32 potar1;
+ u8 res3[4];
+ u32 pobar1;
+ u8 res4[4];
+ u32 pocmr1;
+ u8 res5[4];
+ u32 potar2;
+ u8 res6[4];
+ u32 pobar2;
+ u8 res7[4];
+ u32 pocmr2;
+ u8 res8[4];
+ u32 potar3;
+ u8 res9[4];
+ u32 pobar3;
+ u8 res10[4];
+ u32 pocmr3;
+ u8 res11[4];
+ u32 potar4;
+ u8 res12[4];
+ u32 pobar4;
+ u8 res13[4];
+ u32 pocmr4;
+ u8 res14[4];
+ u32 potar5;
+ u8 res15[4];
+ u32 pobar5;
+ u8 res16[4];
+ u32 pocmr5;
+ u8 res17[4];
+ u8 res18[0x60];
+ u32 pmcr;
+ u8 res19[4];
+ u32 dtcr;
+ u8 res20[4];
+} immr_ios_t;
+#define POTAR_TA_MASK 0x000fffff
+#define POBAR_BA_MASK 0x000fffff
+#define POCMR_EN 0x80000000
+#define POCMR_IO 0x40000000 /* 0--memory space 1--I/O space */
+#define POCMR_SE 0x20000000 /* streaming enable */
+#define POCMR_DST 0x10000000 /* 0--PCI1 1--PCI2 */
+#define POCMR_CM_MASK 0x000fffff
+
+/*
+ * PCI Controller Control and Status Registers */ typedef struct
+immr_pcictrl {
+ u32 esr;
+ u32 ecdr;
+ u32 eer;
+ u32 eatcr;
+ u32 eacr;
+ u32 eeacr;
+ u32 edlcr;
+ u32 edhcr;
+ u32 gcr;
+ u32 ecr;
+ u32 gsr;
+ u8 res0[12];
+ u32 pitar2;
+ u8 res1[4];
+ u32 pibar2;
+ u32 piebar2;
+ u32 piwar2;
+ u8 res2[4];
+ u32 pitar1;
+ u8 res3[4];
+ u32 pibar1;
+ u32 piebar1;
+ u32 piwar1;
+ u8 res4[4];
+ u32 pitar0;
+ u8 res5[4];
+ u32 pibar0;
+ u8 res6[4];
+ u32 piwar0;
+ u8 res7[132];
+} immr_pcictrl_t;
+#define PITAR_TA_MASK 0x000fffff
+#define PIBAR_MASK 0xffffffff
+#define PIEBAR_EBA_MASK 0x000fffff
+#define PIWAR_EN 0x80000000
+#define PIWAR_PF 0x20000000
+#define PIWAR_RTT_MASK 0x000f0000
+#define PIWAR_RTT_NO_SNOOP 0x00040000
+#define PIWAR_RTT_SNOOP 0x00050000
+#define PIWAR_WTT_MASK 0x0000f000
+#define PIWAR_WTT_NO_SNOOP 0x00004000
+#define PIWAR_WTT_SNOOP 0x00005000
+#define PIWAR_IWS_MASK 0x0000003F
+#define PIWAR_IWS_4K 0x0000000B
+#define PIWAR_IWS_8K 0x0000000C
+#define PIWAR_IWS_16K 0x0000000D
+#define PIWAR_IWS_32K 0x0000000E
+#define PIWAR_IWS_64K 0x0000000F
+#define PIWAR_IWS_128K 0x00000010
+#define PIWAR_IWS_256K 0x00000011
+#define PIWAR_IWS_512K 0x00000012
+#define PIWAR_IWS_1M 0x00000013
+#define PIWAR_IWS_2M 0x00000014
+#define PIWAR_IWS_4M 0x00000015
+#define PIWAR_IWS_8M 0x00000016
+#define PIWAR_IWS_16M 0x00000017
+#define PIWAR_IWS_32M 0x00000018
+#define PIWAR_IWS_64M 0x00000019
+#define PIWAR_IWS_128M 0x0000001A
+#define PIWAR_IWS_256M 0x0000001B
+#define PIWAR_IWS_512M 0x0000001C
+#define PIWAR_IWS_1G 0x0000001D
+#define PIWAR_IWS_2G 0x0000001E
+
+#endif /* __PPC_SYSLIB_PPC83XX_PCI_H */
diff --git a/arch/ppc/syslib/ppc83xx_setup.c b/arch/ppc/syslib/ppc83xx_setup.c
--- a/arch/ppc/syslib/ppc83xx_setup.c
+++ b/arch/ppc/syslib/ppc83xx_setup.c
@@ -11,6 +11,17 @@
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ along
+ * with this program; if not, write to the Free Software Foundation,
+ Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Added PCI support -- Tony Li <tony.li@freescale.com>
*/
#include <linux/config.h>
@@ -31,6 +42,10 @@
#include <asm/delay.h>
#include <syslib/ppc83xx_setup.h>
+#if defined(CONFIG_PCI)
+#include <asm/delay.h>
+#include <syslib/ppc83xx_pci.h>
+#endif
phys_addr_t immrbar;
@@ -162,4 +177,237 @@ mpc83xx_halt(void)
for(;;);
}
-/* PCI SUPPORT DOES NOT EXIT, MODEL after ppc85xx_setup.c */
+#if defined(CONFIG_PCI)
+void __init
+mpc83xx_setup_pci1(struct pci_controller *hose) {
+ u16 reg16;
+ volatile immr_pcictrl_t * pci_ctrl;
+ volatile immr_ios_t * ios;
+ bd_t *binfo = (bd_t *) __res;
+
+ pci_ctrl = ioremap(binfo->bi_immr_base + 0x8500, sizeof(immr_pcictrl_t));
+ ios = ioremap(binfo->bi_immr_base + 0x8400, sizeof(immr_ios_t));
+
+ /*
+ * Configure PCI Outbound Translation Windows
+ */
+ ios->potar0 = (MPC83xx_PCI1_LOWER_MEM >> 12) & POTAR_TA_MASK;
+ ios->pobar0 = (MPC83xx_PCI1_LOWER_MEM >> 12) & POBAR_BA_MASK;
+ ios->pocmr0 = POCMR_EN |
+ (((0xffffffff - (MPC83xx_PCI1_UPPER_MEM -
+ MPC83xx_PCI1_LOWER_MEM)) >> 12) & POCMR_CM_MASK);
+
+ /* mapped to PCI1 IO space */
+ ios->potar1 = (MPC83xx_PCI1_LOWER_IO >> 12) & POTAR_TA_MASK;
+ ios->pobar1 = (MPC83xx_PCI1_IO_BASE >> 12) & POBAR_BA_MASK;
+ ios->pocmr1 = POCMR_EN | POCMR_IO |
+ (((0xffffffff - (MPC83xx_PCI1_UPPER_IO -
+ MPC83xx_PCI1_LOWER_IO)) >> 12) & POCMR_CM_MASK);
+
+ /*
+ * Configure PCI Inbound Translation Windows
+ */
+ pci_ctrl->pitar1 = 0x0;
+ pci_ctrl->pibar1 = 0x0;
+ pci_ctrl->piebar1 = 0x0;
+ pci_ctrl->piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP |
+PIWAR_WTT_SNOOP | PIWAR_IWS_2G;
+
+ /*
+ * Release PCI RST signal
+ */
+ pci_ctrl->gcr = 0;
+ udelay(2000);
+ pci_ctrl->gcr = 1;
+ udelay(2000);
+
+ reg16 = 0xff;
+ early_read_config_word(hose, hose->first_busno, 0, PCI_COMMAND, ®16);
+ reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
+ early_write_config_word(hose, hose->first_busno, 0, PCI_COMMAND,
+reg16);
+
+ /*
+ * Clear non-reserved bits in status register.
+ */
+ early_write_config_word(hose, hose->first_busno, 0, PCI_STATUS, 0xffff);
+ early_write_config_byte(hose, hose->first_busno, 0, PCI_LATENCY_TIMER,
+0x80);
+
+ iounmap(pci_ctrl);
+ iounmap(ios);
+}
+
+void __init
+mpc83xx_setup_pci2(struct pci_controller *hose) {
+ u16 reg16;
+ volatile immr_pcictrl_t * pci_ctrl;
+ volatile immr_ios_t * ios;
+ bd_t *binfo = (bd_t *) __res;
+
+ pci_ctrl = ioremap(binfo->bi_immr_base + 0x8600, sizeof(immr_pcictrl_t));
+ ios = ioremap(binfo->bi_immr_base + 0x8400, sizeof(immr_ios_t));
+
+ /*
+ * Configure PCI Outbound Translation Windows
+ */
+ ios->potar3 = (MPC83xx_PCI2_LOWER_MEM >> 12) & POTAR_TA_MASK;
+ ios->pobar3 = (MPC83xx_PCI2_LOWER_MEM >> 12) & POBAR_BA_MASK;
+ ios->pocmr3 = POCMR_EN | POCMR_DST |
+ (((0xffffffff - (MPC83xx_PCI2_UPPER_MEM -
+ MPC83xx_PCI2_LOWER_MEM)) >> 12) & POCMR_CM_MASK);
+
+ /* mapped to PCI2 IO space */
+ ios->potar4 = (MPC83xx_PCI2_LOWER_IO >> 12) & POTAR_TA_MASK;
+ ios->pobar4 = (MPC83xx_PCI2_IO_BASE >> 12) & POBAR_BA_MASK;
+ ios->pocmr4 = POCMR_EN | POCMR_DST | POCMR_IO |
+ (((0xffffffff - (MPC83xx_PCI2_UPPER_IO -
+ MPC83xx_PCI2_LOWER_IO)) >> 12) & POCMR_CM_MASK);
+
+ /*
+ * Configure PCI Inbound Translation Windows
+ */
+ pci_ctrl->pitar1 = 0x0;
+ pci_ctrl->pibar1 = 0x0;
+ pci_ctrl->piebar1 = 0x0;
+ pci_ctrl->piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP |
+PIWAR_WTT_SNOOP | PIWAR_IWS_2G;
+
+ /*
+ * Release PCI RST signal
+ */
+ pci_ctrl->gcr = 0;
+ udelay(2000);
+ pci_ctrl->gcr = 1;
+ udelay(2000);
+
+ reg16 = 0xff;
+ early_read_config_word(hose, hose->first_busno, 0, PCI_COMMAND, ®16);
+ reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
+ early_write_config_word(hose, hose->first_busno, 0, PCI_COMMAND,
+reg16);
+
+ /*
+ * Clear non-reserved bits in status register.
+ */
+ early_write_config_word(hose, hose->first_busno, 0, PCI_STATUS, 0xffff);
+ early_write_config_byte(hose, hose->first_busno, 0, PCI_LATENCY_TIMER,
+0x80);
+
+ iounmap(pci_ctrl);
+ iounmap(ios);
+}
+
+/*
+ * PCI buses can be enabled only if SYS board combinates with PIB
+ * (Platform IO Board) board which provide 3 PCI slots. There is 2 PCI
+buses
+ * and 3 PCI slots, so people must configure the routes between them
+before
+ * enable PCI bus. This routes are under the control of PCA9555PW
+device which
+ * can be accessed via I2C bus 2 and are configured by firmware. Refer
+to
+ * Freescale to get more information about firmware configuration.
+ */
+
+extern int mpc83xx_exclude_device(u_char bus, u_char devfn); extern int
+mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel,
+ unsigned char pin);
+void __init
+mpc83xx_setup_hose(void)
+{
+ u32 val32;
+ volatile immr_clk_t * clk;
+ struct pci_controller * hose1;
+#ifdef CONFIG_MPC83xx_PCI2
+ struct pci_controller * hose2;
+#endif
+ bd_t * binfo = (bd_t *)__res;
+
+ clk = ioremap(binfo->bi_immr_base + 0xA00,
+ sizeof(immr_clk_t));
+
+ /*
+ * Configure PCI controller and PCI_CLK_OUTPUT both in 66M mode
+ */
+ val32 = clk->occr;
+ udelay(2000);
+ clk->occr = 0xff000000;
+ udelay(2000);
+
+ iounmap(clk);
+
+ hose1 = pcibios_alloc_controller();
+ if(!hose1)
+ return;
+
+ ppc_md.pci_swizzle = common_swizzle;
+ ppc_md.pci_map_irq = mpc83xx_map_irq;
+
+ hose1->bus_offset = 0;
+ hose1->first_busno = 0;
+ hose1->last_busno = 0xff;
+
+ setup_indirect_pci(hose1, binfo->bi_immr_base + PCI1_CFG_ADDR_OFFSET,
+ binfo->bi_immr_base + PCI1_CFG_DATA_OFFSET);
+ hose1->set_cfg_type = 1;
+
+ mpc83xx_setup_pci1(hose1);
+
+ hose1->pci_mem_offset = MPC83xx_PCI1_MEM_OFFSET;
+ hose1->mem_space.start = MPC83xx_PCI1_LOWER_MEM;
+ hose1->mem_space.end = MPC83xx_PCI1_UPPER_MEM;
+
+ hose1->io_base_phys = MPC83xx_PCI1_IO_BASE;
+ hose1->io_space.start = MPC83xx_PCI1_LOWER_IO;
+ hose1->io_space.end = MPC83xx_PCI1_UPPER_IO; #ifdef
+CONFIG_MPC83xx_PCI2
+ isa_io_base = (unsigned long)ioremap(MPC83xx_PCI1_IO_BASE,
+ MPC83xx_PCI1_IO_SIZE + MPC83xx_PCI2_IO_SIZE); #else
+ isa_io_base = (unsigned long)ioremap(MPC83xx_PCI1_IO_BASE,
+ MPC83xx_PCI1_IO_SIZE);
+#endif /* CONFIG_MPC83xx_PCI2 */
+ hose1->io_base_virt = (void *)isa_io_base;
+ /* setup resources */
+ pci_init_resource(&hose1->io_resource,
+ MPC83xx_PCI1_LOWER_IO,
+ MPC83xx_PCI1_UPPER_IO,
+ IORESOURCE_IO, "PCI host bridge 1");
+ pci_init_resource(&hose1->mem_resources[0],
+ MPC83xx_PCI1_LOWER_MEM,
+ MPC83xx_PCI1_UPPER_MEM,
+ IORESOURCE_MEM, "PCI host bridge 1");
+
+ ppc_md.pci_exclude_device = mpc83xx_exclude_device;
+ hose1->last_busno = pciauto_bus_scan(hose1, hose1->first_busno);
+
+#ifdef CONFIG_MPC83xx_PCI2
+ hose2 = pcibios_alloc_controller();
+ if(!hose2)
+ return;
+
+ hose2->bus_offset = hose1->last_busno + 1;
+ hose2->first_busno = hose1->last_busno + 1;
+ hose2->last_busno = 0xff;
+ setup_indirect_pci(hose2, binfo->bi_immr_base + PCI2_CFG_ADDR_OFFSET,
+ binfo->bi_immr_base + PCI2_CFG_DATA_OFFSET);
+ hose2->set_cfg_type = 1;
+
+ mpc83xx_setup_pci2(hose2);
+
+ hose2->pci_mem_offset = MPC83xx_PCI2_MEM_OFFSET;
+ hose2->mem_space.start = MPC83xx_PCI2_LOWER_MEM;
+ hose2->mem_space.end = MPC83xx_PCI2_UPPER_MEM;
+
+ hose2->io_base_phys = MPC83xx_PCI2_IO_BASE;
+ hose2->io_space.start = MPC83xx_PCI2_LOWER_IO;
+ hose2->io_space.end = MPC83xx_PCI2_UPPER_IO;
+ hose2->io_base_virt = (void *)(isa_io_base + MPC83xx_PCI1_IO_SIZE);
+ /* setup resources */
+ pci_init_resource(&hose2->io_resource,
+ MPC83xx_PCI2_LOWER_IO,
+ MPC83xx_PCI2_UPPER_IO,
+ IORESOURCE_IO, "PCI host bridge 2");
+ pci_init_resource(&hose2->mem_resources[0],
+ MPC83xx_PCI2_LOWER_MEM,
+ MPC83xx_PCI2_UPPER_MEM,
+ IORESOURCE_MEM, "PCI host bridge 2");
+
+ hose2->last_busno = pciauto_bus_scan(hose2, hose2->first_busno);
+#endif /* CONFIG_MPC83xx_PCI2 */ } #endif /*CONFIG_PCI*/
diff --git a/arch/ppc/syslib/ppc83xx_setup.h b/arch/ppc/syslib/ppc83xx_setup.h
--- a/arch/ppc/syslib/ppc83xx_setup.h
+++ b/arch/ppc/syslib/ppc83xx_setup.h
@@ -12,6 +12,14 @@
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ along
+ * with this program; if not, write to the Free Software Foundation,
+ Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __PPC_SYSLIB_PPC83XX_SETUP_H
@@ -19,7 +27,6 @@
#include <linux/config.h>
#include <linux/init.h>
-#include <asm/ppcboot.h>
extern unsigned long mpc83xx_find_end_of_memory(void) __init; extern long mpc83xx_time_init(void) __init; @@ -31,13 +38,11 @@ extern void mpc83xx_halt(void); extern void mpc83xx_setup_hose(void) __init;
/* PCI config */
-#if 0
-#define PCI1_CFG_ADDR_OFFSET (FIXME)
-#define PCI1_CFG_DATA_OFFSET (FIXME)
+#define PCI1_CFG_ADDR_OFFSET (0x8300)
+#define PCI1_CFG_DATA_OFFSET (0x8304)
-#define PCI2_CFG_ADDR_OFFSET (FIXME)
-#define PCI2_CFG_DATA_OFFSET (FIXME)
-#endif
+#define PCI2_CFG_ADDR_OFFSET (0x8380)
+#define PCI2_CFG_DATA_OFFSET (0x8384)
/* Serial Config */
#ifdef CONFIG_SERIAL_MANY_PORTS
^ permalink raw reply [flat|nested] 10+ messages in thread* Re: [PATCH] ppc32 :Added PCI support for MPC83xx
2005-08-30 3:02 [PATCH] ppc32 :Added PCI support for MPC83xx Li Tony-r64360
@ 2005-08-30 4:27 ` Kumar Gala
2005-08-30 14:36 ` Dan Malek
1 sibling, 0 replies; 10+ messages in thread
From: Kumar Gala @ 2005-08-30 4:27 UTC (permalink / raw)
To: Li Tony-r64360; +Cc: Chu hanjin-r52514, linux-kernel, linuxppc-embedded
Hmm, well the PCI spec seems to be clear on the fact that PCI
interrupts should be level sensitive.
- kumar
On Aug 29, 2005, at 10:02 PM, Li Tony-r64360 wrote:
> I think it is OK. The external interrupt can be edged. And it works
> well
> in my board.
>
> Tony Li
>
> -----Original Message-----
> From: Gala Kumar K.-galak
> Sent: Tuesday, August 30, 2005 1:43 AM
> To: Li Tony-r64360
> Cc: linuxppc-embedded; linux-kernel@vger.kernel.org; Gala Kumar
> K.-galak; Chu hanjin-r52514
> Subject: Re: [PATCH] ppc32 :Added PCI support for MPC83xx
>
> I noticed that you aren't updating the senses array in
> mpc834x_sys_init_IRQ for the PCI interrupt lines, is this correct?
> Should they not be IRQ_SENSE_LEVEL?
>
> Also, I've done a bit of cosmetic cleanup to the patch, take a look
> and
> let me know if it works. Once we close on the IRQ sense issue I will
> send this upstream.
>
> - kumar
>
> ---
>
> diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
> --- a/arch/ppc/Kconfig
> +++ b/arch/ppc/Kconfig
> @@ -713,6 +713,12 @@ config MPC834x_SYS
> help
> This option enables support for the MPC 834x SYS evaluation
> board.
>
> + Be aware that PCI buses can only function when SYS board is
> plugged on
> + PIB (Platform IO Board) board from Freescale which provide 3
> PCI slots.
> + Just like PC,the board level initalization is bootloader`s
> responsiblilty.
> + The PCI deponds on bootloader configurate board corretly.
> Refer to Freescale
> + to get more information about this.
> +
> endchoice
>
> config PQ2ADS
> @@ -1193,6 +1199,11 @@ config PCI
> config PCI_DOMAINS
> bool
> default PCI
> +
> +config MPC83xx_PCI2
> + bool " Supprt for 2nd PCI host controller"
> + depends on PCI && MPC834x
> + default y if MPC834x_SYS
>
> config PCI_QSPAN
> bool "QSpan PCI"
> diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.c
> b/arch/ppc/platforms/83xx/mpc834x_sys.c
> --- a/arch/ppc/platforms/83xx/mpc834x_sys.c
> +++ b/arch/ppc/platforms/83xx/mpc834x_sys.c
> @@ -62,9 +62,29 @@ extern unsigned long total_memory; /* in
> unsigned char __res[sizeof (bd_t)];
>
> #ifdef CONFIG_PCI
> -#error "PCI is not supported"
> -/* NEED mpc83xx_map_irq & mpc83xx_exclude_device
> - see platforms/85xx/mpc85xx_ads_common.c */
> +int
> +mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned
> char
>
> +pin) {
> + static char pci_irq_table[][4] =
> + /*
> + * PCI IDSEL/INTPIN->INTLINE
> + * A B C D
> + */
> + {
> + {PIRQA, PIRQB, PIRQC, PIRQD}, /* idsel 0x11 */
> + {PIRQC, PIRQD, PIRQA, PIRQB}, /* idsel 0x12 */
> + {PIRQD, PIRQA, PIRQB, PIRQC} /* idsel 0x13 */
> + };
> +
> + const long min_idsel = 0x11, max_idsel = 0x13, irqs_per_slot =
> 4;
> + return PCI_IRQ_TABLE_LOOKUP;
> +}
> +
> +int
> +mpc83xx_exclude_device(u_char bus, u_char devfn) {
> + return PCIBIOS_SUCCESSFUL;
> +}
> #endif /* CONFIG_PCI */
>
> /*
> **********************************************************************
> **
> @@ -88,7 +108,7 @@ mpc834x_sys_setup_arch(void)
>
> #ifdef CONFIG_PCI
> /* setup PCI host bridges */
> - mpc83xx_sys_setup_hose();
> + mpc83xx_setup_hose();
> #endif
> mpc83xx_early_serial_map();
>
> diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.h
> b/arch/ppc/platforms/83xx/mpc834x_sys.h
> --- a/arch/ppc/platforms/83xx/mpc834x_sys.h
> +++ b/arch/ppc/platforms/83xx/mpc834x_sys.h
> @@ -26,7 +26,7 @@
> #define VIRT_IMMRBAR ((uint)0xfe000000)
>
> #define BCSR_PHYS_ADDR ((uint)0xf8000000)
> -#define BCSR_SIZE ((uint)(32 * 1024))
> +#define BCSR_SIZE ((uint)(128 * 1024))
>
> #define BCSR_MISC_REG2_OFF 0x07
> #define BCSR_MISC_REG2_PORESET 0x01
> @@ -34,23 +34,25 @@
> #define BCSR_MISC_REG3_OFF 0x08
> #define BCSR_MISC_REG3_CNFLOCK 0x80
>
> -#ifdef CONFIG_PCI
> -/* PCI interrupt controller */
> -#define PIRQA MPC83xx_IRQ_IRQ4
> -#define PIRQB MPC83xx_IRQ_IRQ5
> -#define PIRQC MPC83xx_IRQ_IRQ6
> -#define PIRQD MPC83xx_IRQ_IRQ7
> -
> -#define MPC834x_SYS_PCI1_LOWER_IO 0x00000000
> -#define MPC834x_SYS_PCI1_UPPER_IO 0x00ffffff
> -
> -#define MPC834x_SYS_PCI1_LOWER_MEM 0x80000000
> -#define MPC834x_SYS_PCI1_UPPER_MEM 0x9fffffff
> -
> -#define MPC834x_SYS_PCI1_IO_BASE 0xe2000000
> -#define MPC834x_SYS_PCI1_MEM_OFFSET 0x00000000
> -
> -#define MPC834x_SYS_PCI1_IO_SIZE 0x01000000
> -#endif /* CONFIG_PCI */
> +#define PIRQA MPC83xx_IRQ_EXT4
> +#define PIRQB MPC83xx_IRQ_EXT5
> +#define PIRQC MPC83xx_IRQ_EXT6
> +#define PIRQD MPC83xx_IRQ_EXT7
> +
> +#define MPC83xx_PCI1_LOWER_IO 0x00000000
> +#define MPC83xx_PCI1_UPPER_IO 0x00ffffff
> +#define MPC83xx_PCI1_LOWER_MEM 0x80000000
> +#define MPC83xx_PCI1_UPPER_MEM 0x9fffffff
> +#define MPC83xx_PCI1_IO_BASE 0xe2000000
> +#define MPC83xx_PCI1_MEM_OFFSET 0x00000000
> +#define MPC83xx_PCI1_IO_SIZE 0x01000000
> +
> +#define MPC83xx_PCI2_LOWER_IO 0x00000000
> +#define MPC83xx_PCI2_UPPER_IO 0x00ffffff
> +#define MPC83xx_PCI2_LOWER_MEM 0xa0000000
> +#define MPC83xx_PCI2_UPPER_MEM 0xbfffffff
> +#define MPC83xx_PCI2_IO_BASE 0xe3000000
> +#define MPC83xx_PCI2_MEM_OFFSET 0x00000000
> +#define MPC83xx_PCI2_IO_SIZE 0x01000000
>
> #endif /* __MACH_MPC83XX_SYS_H__ */
> diff --git a/arch/ppc/syslib/ppc83xx_pci.h
> b/arch/ppc/syslib/ppc83xx_pci.h new file mode 100644
> --- /dev/null
> +++ b/arch/ppc/syslib/ppc83xx_pci.h
> @@ -0,0 +1,151 @@
> +/* Created by Tony Li <tony.li@freescale.com>
> + * Copyright (c) 2005 freescale semiconductor
> + *
> + * This program is free software; you can redistribute it and/or
> +modify it
> + * under the terms of the GNU General Public License as
> published by
>
> +the
> + * Free Software Foundation; either version 2 of the License, or
> (at
> +your
> + * option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> +along
> + * with this program; if not, write to the Free Software Foundation,
> +Inc.,
> + * 675 Mass Ave, Cambridge, MA 02139, USA.
> + */
> +
> +#ifndef __PPC_SYSLIB_PPC83XX_PCI_H
> +#define __PPC_SYSLIB_PPC83XX_PCI_H
> +
> +typedef struct immr_clk {
> + u32 spmr; /* system PLL mode Register */
> + u32 occr; /* output clock control Register */
> + u32 sccr; /* system clock control Register */
> + u8 res0[0xF4];
> +} immr_clk_t;
> +
> +/*
> + * Sequencer
> + */
> +typedef struct immr_ios {
> + u32 potar0;
> + u8 res0[4];
> + u32 pobar0;
> + u8 res1[4];
> + u32 pocmr0;
> + u8 res2[4];
> + u32 potar1;
> + u8 res3[4];
> + u32 pobar1;
> + u8 res4[4];
> + u32 pocmr1;
> + u8 res5[4];
> + u32 potar2;
> + u8 res6[4];
> + u32 pobar2;
> + u8 res7[4];
> + u32 pocmr2;
> + u8 res8[4];
> + u32 potar3;
> + u8 res9[4];
> + u32 pobar3;
> + u8 res10[4];
> + u32 pocmr3;
> + u8 res11[4];
> + u32 potar4;
> + u8 res12[4];
> + u32 pobar4;
> + u8 res13[4];
> + u32 pocmr4;
> + u8 res14[4];
> + u32 potar5;
> + u8 res15[4];
> + u32 pobar5;
> + u8 res16[4];
> + u32 pocmr5;
> + u8 res17[4];
> + u8 res18[0x60];
> + u32 pmcr;
> + u8 res19[4];
> + u32 dtcr;
> + u8 res20[4];
> +} immr_ios_t;
> +#define POTAR_TA_MASK 0x000fffff
> +#define POBAR_BA_MASK 0x000fffff
> +#define POCMR_EN 0x80000000
> +#define POCMR_IO 0x40000000 /* 0--memory space 1--I/O space */
> +#define POCMR_SE 0x20000000 /* streaming enable */
> +#define POCMR_DST 0x10000000 /* 0--PCI1 1--PCI2 */
> +#define POCMR_CM_MASK 0x000fffff
> +
> +/*
> + * PCI Controller Control and Status Registers */ typedef struct
> +immr_pcictrl {
> + u32 esr;
> + u32 ecdr;
> + u32 eer;
> + u32 eatcr;
> + u32 eacr;
> + u32 eeacr;
> + u32 edlcr;
> + u32 edhcr;
> + u32 gcr;
> + u32 ecr;
> + u32 gsr;
> + u8 res0[12];
> + u32 pitar2;
> + u8 res1[4];
> + u32 pibar2;
> + u32 piebar2;
> + u32 piwar2;
> + u8 res2[4];
> + u32 pitar1;
> + u8 res3[4];
> + u32 pibar1;
> + u32 piebar1;
> + u32 piwar1;
> + u8 res4[4];
> + u32 pitar0;
> + u8 res5[4];
> + u32 pibar0;
> + u8 res6[4];
> + u32 piwar0;
> + u8 res7[132];
> +} immr_pcictrl_t;
> +#define PITAR_TA_MASK 0x000fffff
> +#define PIBAR_MASK 0xffffffff
> +#define PIEBAR_EBA_MASK 0x000fffff
> +#define PIWAR_EN 0x80000000
> +#define PIWAR_PF 0x20000000
> +#define PIWAR_RTT_MASK 0x000f0000
> +#define PIWAR_RTT_NO_SNOOP 0x00040000
> +#define PIWAR_RTT_SNOOP 0x00050000
> +#define PIWAR_WTT_MASK 0x0000f000
> +#define PIWAR_WTT_NO_SNOOP 0x00004000
> +#define PIWAR_WTT_SNOOP 0x00005000
> +#define PIWAR_IWS_MASK 0x0000003F
> +#define PIWAR_IWS_4K 0x0000000B
> +#define PIWAR_IWS_8K 0x0000000C
> +#define PIWAR_IWS_16K 0x0000000D
> +#define PIWAR_IWS_32K 0x0000000E
> +#define PIWAR_IWS_64K 0x0000000F
> +#define PIWAR_IWS_128K 0x00000010
> +#define PIWAR_IWS_256K 0x00000011
> +#define PIWAR_IWS_512K 0x00000012
> +#define PIWAR_IWS_1M 0x00000013
> +#define PIWAR_IWS_2M 0x00000014
> +#define PIWAR_IWS_4M 0x00000015
> +#define PIWAR_IWS_8M 0x00000016
> +#define PIWAR_IWS_16M 0x00000017
> +#define PIWAR_IWS_32M 0x00000018
> +#define PIWAR_IWS_64M 0x00000019
> +#define PIWAR_IWS_128M 0x0000001A
> +#define PIWAR_IWS_256M 0x0000001B
> +#define PIWAR_IWS_512M 0x0000001C
> +#define PIWAR_IWS_1G 0x0000001D
> +#define PIWAR_IWS_2G 0x0000001E
> +
> +#endif /* __PPC_SYSLIB_PPC83XX_PCI_H */
> diff --git a/arch/ppc/syslib/ppc83xx_setup.c
> b/arch/ppc/syslib/ppc83xx_setup.c
> --- a/arch/ppc/syslib/ppc83xx_setup.c
> +++ b/arch/ppc/syslib/ppc83xx_setup.c
> @@ -11,6 +11,17 @@
> * under the terms of the GNU General Public License as
> published by
> the
> * Free Software Foundation; either version 2 of the License, or
> (at
> your
> * option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + along
> + * with this program; if not, write to the Free Software Foundation,
> + Inc.,
> + * 675 Mass Ave, Cambridge, MA 02139, USA.
> + *
> + * Added PCI support -- Tony Li <tony.li@freescale.com>
> */
>
> #include <linux/config.h>
> @@ -31,6 +42,10 @@
> #include <asm/delay.h>
>
> #include <syslib/ppc83xx_setup.h>
> +#if defined(CONFIG_PCI)
> +#include <asm/delay.h>
> +#include <syslib/ppc83xx_pci.h>
> +#endif
>
> phys_addr_t immrbar;
>
> @@ -162,4 +177,237 @@ mpc83xx_halt(void)
> for(;;);
> }
>
> -/* PCI SUPPORT DOES NOT EXIT, MODEL after ppc85xx_setup.c */
> +#if defined(CONFIG_PCI)
> +void __init
> +mpc83xx_setup_pci1(struct pci_controller *hose) {
> + u16 reg16;
> + volatile immr_pcictrl_t * pci_ctrl;
> + volatile immr_ios_t * ios;
> + bd_t *binfo = (bd_t *) __res;
> +
> + pci_ctrl = ioremap(binfo->bi_immr_base + 0x8500,
> sizeof(immr_pcictrl_t));
> + ios = ioremap(binfo->bi_immr_base + 0x8400, sizeof(immr_ios_t));
> +
> + /*
> + * Configure PCI Outbound Translation Windows
> + */
> + ios->potar0 = (MPC83xx_PCI1_LOWER_MEM >> 12) & POTAR_TA_MASK;
> + ios->pobar0 = (MPC83xx_PCI1_LOWER_MEM >> 12) & POBAR_BA_MASK;
> + ios->pocmr0 = POCMR_EN |
> + (((0xffffffff - (MPC83xx_PCI1_UPPER_MEM -
> + MPC83xx_PCI1_LOWER_MEM)) >> 12) &
> POCMR_CM_MASK);
> +
> + /* mapped to PCI1 IO space */
> + ios->potar1 = (MPC83xx_PCI1_LOWER_IO >> 12) & POTAR_TA_MASK;
> + ios->pobar1 = (MPC83xx_PCI1_IO_BASE >> 12) & POBAR_BA_MASK;
> + ios->pocmr1 = POCMR_EN | POCMR_IO |
> + (((0xffffffff - (MPC83xx_PCI1_UPPER_IO -
> + MPC83xx_PCI1_LOWER_IO)) >> 12) &
> POCMR_CM_MASK);
> +
> + /*
> + * Configure PCI Inbound Translation Windows
> + */
> + pci_ctrl->pitar1 = 0x0;
> + pci_ctrl->pibar1 = 0x0;
> + pci_ctrl->piebar1 = 0x0;
> + pci_ctrl->piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP |
> +PIWAR_WTT_SNOOP | PIWAR_IWS_2G;
> +
> + /*
> + * Release PCI RST signal
> + */
> + pci_ctrl->gcr = 0;
> + udelay(2000);
> + pci_ctrl->gcr = 1;
> + udelay(2000);
> +
> + reg16 = 0xff;
> + early_read_config_word(hose, hose->first_busno, 0, PCI_COMMAND,
> ®16);
> + reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER |
> PCI_COMMAND_MEMORY;
> + early_write_config_word(hose, hose->first_busno, 0, PCI_COMMAND,
>
> +reg16);
> +
> + /*
> + * Clear non-reserved bits in status register.
> + */
> + early_write_config_word(hose, hose->first_busno, 0, PCI_STATUS,
> 0xffff);
> + early_write_config_byte(hose, hose->first_busno, 0,
> PCI_LATENCY_TIMER,
> +0x80);
> +
> + iounmap(pci_ctrl);
> + iounmap(ios);
> +}
> +
> +void __init
> +mpc83xx_setup_pci2(struct pci_controller *hose) {
> + u16 reg16;
> + volatile immr_pcictrl_t * pci_ctrl;
> + volatile immr_ios_t * ios;
> + bd_t *binfo = (bd_t *) __res;
> +
> + pci_ctrl = ioremap(binfo->bi_immr_base + 0x8600,
> sizeof(immr_pcictrl_t));
> + ios = ioremap(binfo->bi_immr_base + 0x8400, sizeof(immr_ios_t));
> +
> + /*
> + * Configure PCI Outbound Translation Windows
> + */
> + ios->potar3 = (MPC83xx_PCI2_LOWER_MEM >> 12) & POTAR_TA_MASK;
> + ios->pobar3 = (MPC83xx_PCI2_LOWER_MEM >> 12) & POBAR_BA_MASK;
> + ios->pocmr3 = POCMR_EN | POCMR_DST |
> + (((0xffffffff - (MPC83xx_PCI2_UPPER_MEM -
> + MPC83xx_PCI2_LOWER_MEM)) >> 12) &
> POCMR_CM_MASK);
> +
> + /* mapped to PCI2 IO space */
> + ios->potar4 = (MPC83xx_PCI2_LOWER_IO >> 12) & POTAR_TA_MASK;
> + ios->pobar4 = (MPC83xx_PCI2_IO_BASE >> 12) & POBAR_BA_MASK;
> + ios->pocmr4 = POCMR_EN | POCMR_DST | POCMR_IO |
> + (((0xffffffff - (MPC83xx_PCI2_UPPER_IO -
> + MPC83xx_PCI2_LOWER_IO)) >> 12) &
> POCMR_CM_MASK);
> +
> + /*
> + * Configure PCI Inbound Translation Windows
> + */
> + pci_ctrl->pitar1 = 0x0;
> + pci_ctrl->pibar1 = 0x0;
> + pci_ctrl->piebar1 = 0x0;
> + pci_ctrl->piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP |
> +PIWAR_WTT_SNOOP | PIWAR_IWS_2G;
> +
> + /*
> + * Release PCI RST signal
> + */
> + pci_ctrl->gcr = 0;
> + udelay(2000);
> + pci_ctrl->gcr = 1;
> + udelay(2000);
> +
> + reg16 = 0xff;
> + early_read_config_word(hose, hose->first_busno, 0, PCI_COMMAND,
> ®16);
> + reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER |
> PCI_COMMAND_MEMORY;
> + early_write_config_word(hose, hose->first_busno, 0, PCI_COMMAND,
>
> +reg16);
> +
> + /*
> + * Clear non-reserved bits in status register.
> + */
> + early_write_config_word(hose, hose->first_busno, 0, PCI_STATUS,
> 0xffff);
> + early_write_config_byte(hose, hose->first_busno, 0,
> PCI_LATENCY_TIMER,
> +0x80);
> +
> + iounmap(pci_ctrl);
> + iounmap(ios);
> +}
> +
> +/*
> + * PCI buses can be enabled only if SYS board combinates with PIB
> + * (Platform IO Board) board which provide 3 PCI slots. There is 2
> PCI
> +buses
> + * and 3 PCI slots, so people must configure the routes between them
> +before
> + * enable PCI bus. This routes are under the control of PCA9555PW
> +device which
> + * can be accessed via I2C bus 2 and are configured by firmware.
> Refer
> +to
> + * Freescale to get more information about firmware configuration.
> + */
> +
> +extern int mpc83xx_exclude_device(u_char bus, u_char devfn);
> extern int
>
> +mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel,
> + unsigned char pin);
> +void __init
> +mpc83xx_setup_hose(void)
> +{
> + u32 val32;
> + volatile immr_clk_t * clk;
> + struct pci_controller * hose1;
> +#ifdef CONFIG_MPC83xx_PCI2
> + struct pci_controller * hose2;
> +#endif
> + bd_t * binfo = (bd_t *)__res;
> +
> + clk = ioremap(binfo->bi_immr_base + 0xA00,
> + sizeof(immr_clk_t));
> +
> + /*
> + * Configure PCI controller and PCI_CLK_OUTPUT both in 66M mode
> + */
> + val32 = clk->occr;
> + udelay(2000);
> + clk->occr = 0xff000000;
> + udelay(2000);
> +
> + iounmap(clk);
> +
> + hose1 = pcibios_alloc_controller();
> + if(!hose1)
> + return;
> +
> + ppc_md.pci_swizzle = common_swizzle;
> + ppc_md.pci_map_irq = mpc83xx_map_irq;
> +
> + hose1->bus_offset = 0;
> + hose1->first_busno = 0;
> + hose1->last_busno = 0xff;
> +
> + setup_indirect_pci(hose1, binfo->bi_immr_base +
> PCI1_CFG_ADDR_OFFSET,
> + binfo->bi_immr_base + PCI1_CFG_DATA_OFFSET);
> + hose1->set_cfg_type = 1;
> +
> + mpc83xx_setup_pci1(hose1);
> +
> + hose1->pci_mem_offset = MPC83xx_PCI1_MEM_OFFSET;
> + hose1->mem_space.start = MPC83xx_PCI1_LOWER_MEM;
> + hose1->mem_space.end = MPC83xx_PCI1_UPPER_MEM;
> +
> + hose1->io_base_phys = MPC83xx_PCI1_IO_BASE;
> + hose1->io_space.start = MPC83xx_PCI1_LOWER_IO;
> + hose1->io_space.end = MPC83xx_PCI1_UPPER_IO; #ifdef
> +CONFIG_MPC83xx_PCI2
> + isa_io_base = (unsigned long)ioremap(MPC83xx_PCI1_IO_BASE,
> + MPC83xx_PCI1_IO_SIZE + MPC83xx_PCI2_IO_SIZE);
> #else
> + isa_io_base = (unsigned long)ioremap(MPC83xx_PCI1_IO_BASE,
> + MPC83xx_PCI1_IO_SIZE);
> +#endif /* CONFIG_MPC83xx_PCI2 */
> + hose1->io_base_virt = (void *)isa_io_base;
> + /* setup resources */
> + pci_init_resource(&hose1->io_resource,
> + MPC83xx_PCI1_LOWER_IO,
> + MPC83xx_PCI1_UPPER_IO,
> + IORESOURCE_IO, "PCI host bridge 1");
> + pci_init_resource(&hose1->mem_resources[0],
> + MPC83xx_PCI1_LOWER_MEM,
> + MPC83xx_PCI1_UPPER_MEM,
> + IORESOURCE_MEM, "PCI host bridge 1");
> +
> + ppc_md.pci_exclude_device = mpc83xx_exclude_device;
> + hose1->last_busno = pciauto_bus_scan(hose1, hose1->first_busno);
> +
> +#ifdef CONFIG_MPC83xx_PCI2
> + hose2 = pcibios_alloc_controller();
> + if(!hose2)
> + return;
> +
> + hose2->bus_offset = hose1->last_busno + 1;
> + hose2->first_busno = hose1->last_busno + 1;
> + hose2->last_busno = 0xff;
> + setup_indirect_pci(hose2, binfo->bi_immr_base +
> PCI2_CFG_ADDR_OFFSET,
> + binfo->bi_immr_base + PCI2_CFG_DATA_OFFSET);
> + hose2->set_cfg_type = 1;
> +
> + mpc83xx_setup_pci2(hose2);
> +
> + hose2->pci_mem_offset = MPC83xx_PCI2_MEM_OFFSET;
> + hose2->mem_space.start = MPC83xx_PCI2_LOWER_MEM;
> + hose2->mem_space.end = MPC83xx_PCI2_UPPER_MEM;
> +
> + hose2->io_base_phys = MPC83xx_PCI2_IO_BASE;
> + hose2->io_space.start = MPC83xx_PCI2_LOWER_IO;
> + hose2->io_space.end = MPC83xx_PCI2_UPPER_IO;
> + hose2->io_base_virt = (void *)(isa_io_base +
> MPC83xx_PCI1_IO_SIZE);
> + /* setup resources */
> + pci_init_resource(&hose2->io_resource,
> + MPC83xx_PCI2_LOWER_IO,
> + MPC83xx_PCI2_UPPER_IO,
> + IORESOURCE_IO, "PCI host bridge 2");
> + pci_init_resource(&hose2->mem_resources[0],
> + MPC83xx_PCI2_LOWER_MEM,
> + MPC83xx_PCI2_UPPER_MEM,
> + IORESOURCE_MEM, "PCI host bridge 2");
> +
> + hose2->last_busno = pciauto_bus_scan(hose2, hose2->first_busno);
>
> +#endif /* CONFIG_MPC83xx_PCI2 */ } #endif /*CONFIG_PCI*/
> diff --git a/arch/ppc/syslib/ppc83xx_setup.h
> b/arch/ppc/syslib/ppc83xx_setup.h
> --- a/arch/ppc/syslib/ppc83xx_setup.h
> +++ b/arch/ppc/syslib/ppc83xx_setup.h
> @@ -12,6 +12,14 @@
> * Free Software Foundation; either version 2 of the License, or
> (at
> your
> * option) any later version.
> *
> + * This program is distributed in the hope that it will be useful,
> but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + along
> + * with this program; if not, write to the Free Software Foundation,
> + Inc.,
> + * 675 Mass Ave, Cambridge, MA 02139, USA.
> */
>
> #ifndef __PPC_SYSLIB_PPC83XX_SETUP_H
> @@ -19,7 +27,6 @@
>
> #include <linux/config.h>
> #include <linux/init.h>
> -#include <asm/ppcboot.h>
>
> extern unsigned long mpc83xx_find_end_of_memory(void) __init; extern
> long mpc83xx_time_init(void) __init; @@ -31,13 +38,11 @@ extern void
> mpc83xx_halt(void); extern void mpc83xx_setup_hose(void) __init;
>
> /* PCI config */
> -#if 0
> -#define PCI1_CFG_ADDR_OFFSET (FIXME)
> -#define PCI1_CFG_DATA_OFFSET (FIXME)
> +#define PCI1_CFG_ADDR_OFFSET (0x8300)
> +#define PCI1_CFG_DATA_OFFSET (0x8304)
>
> -#define PCI2_CFG_ADDR_OFFSET (FIXME)
> -#define PCI2_CFG_DATA_OFFSET (FIXME)
> -#endif
> +#define PCI2_CFG_ADDR_OFFSET (0x8380)
> +#define PCI2_CFG_DATA_OFFSET (0x8384)
>
> /* Serial Config */
> #ifdef CONFIG_SERIAL_MANY_PORTS
>
^ permalink raw reply [flat|nested] 10+ messages in thread* Re: [PATCH] ppc32 :Added PCI support for MPC83xx
2005-08-30 3:02 [PATCH] ppc32 :Added PCI support for MPC83xx Li Tony-r64360
2005-08-30 4:27 ` Kumar Gala
@ 2005-08-30 14:36 ` Dan Malek
1 sibling, 0 replies; 10+ messages in thread
From: Dan Malek @ 2005-08-30 14:36 UTC (permalink / raw)
To: Li Tony-r64360; +Cc: linuxppc-embedded, Chu hanjin-r52514, linux-kernel
On Aug 29, 2005, at 11:02 PM, Li Tony-r64360 wrote:
> I think it is OK. The external interrupt can be edged. And it works
> well in my board.
No, it can't. PCI interrupts must be level sensitive because multiple
slots can share an interrupt.
Thanks.
-- Dan
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH] ppc32 :Added PCI support for MPC83xx
@ 2005-08-30 8:55 Li Tony-r64360
2005-08-30 14:47 ` Kumar Gala
0 siblings, 1 reply; 10+ messages in thread
From: Li Tony-r64360 @ 2005-08-30 8:55 UTC (permalink / raw)
To: 'linuxppc-embedded@ozlabs.org'
Cc: Li Tony-r64360, 'linux-kernel@vger.kernel.org',
Chu hanjin-r52514
[-- Attachment #1: Type: text/plain, Size: 23435 bytes --]
MPC83xx cpu has two PCI buses. This patch adds support for them.
After system boot. The code initializes PCI inbound/outbound
windows, allocate and register PCI memory/io space. Be aware
that this patch depand on the firmware.
Signed-off-by: Tony Li <tony.li@freescale.com <mailto:tony.li@freescale.com> >
---
author Tony Li <tony.li@freescale.com <mailto:tony.li@freescale.com> > Tue, 30 Aug 2005
committer Tony Li <tony.li@freescale.com <mailto:tony.li@freescale.com> > Tue, 30 Aug 2005
diff -urN -X dontdiff linux-2.6.13-rc6/arch/ppc/Kconfig linux-2.6.13-rc6-pci/arch/ppc/Kconfig
--- linux-2.6.13-rc6/arch/ppc/Kconfig 2005-08-09 18:00:47.000000000 +0800
+++ linux-2.6.13-rc6-pci/arch/ppc/Kconfig 2005-08-19 18:17:27.000000000 +0800
@@ -712,6 +712,11 @@
bool "Freescale MPC834x SYS"
help
This option enables support for the MPC 834x SYS evaluation board.
+ Be aware that PCI buses can only function when SYS board is plugged on
+ PIB (Platform IO Board) board from Freescale which provide 3 PCI slots.
+ Just like PC,the board level initalization is bootloader`s responsiblilty.
+ The PCI deponds on bootloader configurate board corretly. Refer to Freescale
+ to get more information about this.
endchoice
@@ -1191,6 +1196,10 @@
bool
default PCI
+config MPC834x_PCI2
+ bool
+ default y if PCI && MPC834x_SYS
+
config PCI_QSPAN
bool "QSpan PCI"
depends on !4xx && !CPM2 && 8xx
diff -urN -X dontdiff linux-2.6.13-rc6/arch/ppc/platforms/83xx/mpc834x_sys.c linux-2.6.13-rc6-pci/arch/ppc/platforms/83xx/mpc834x_sys.c
--- linux-2.6.13-rc6/arch/ppc/platforms/83xx/mpc834x_sys.c 2005-08-09 18:00:47.000000000 +0800
+++ linux-2.6.13-rc6-pci/arch/ppc/platforms/83xx/mpc834x_sys.c 2005-08-30 16:38:52.000000000 +0800
@@ -62,9 +62,28 @@
unsigned char __res[sizeof (bd_t)];
#ifdef CONFIG_PCI
-#error "PCI is not supported"
-/* NEED mpc83xx_map_irq & mpc83xx_exclude_device
- see platforms/85xx/mpc85xx_ads_common.c */
+int
+mpc83xx_ads_map_irq(struct pci_dev *dev,unsigned char idsel,unsigned char pin)
+{
+ char pci_irq_table[][4]=
+ /*
+ * PCI IDSEL&INTPIN -> INTLINE
+ * INTA INTB INTC INTD
+ */
+ {
+ {PIRQA, PIRQB, PIRQC, PIRQD}, /* idsel 0x11 */
+ {PIRQC, PIRQD, PIRQA, PIRQB}, /* idsel 0x12 */
+ {PIRQD, PIRQA, PIRQB, PIRQC} /* idsel 0x13 */
+ };
+ /* MPC8349 MDS board specific */
+ const long min_idsel=0x11,max_idsel=0x13,irqs_per_slot=4;
+ return PCI_IRQ_TABLE_LOOKUP;
+}
+int
+mpc83xx_ads_exclude_device(u_char bus, u_char devfn)
+{
+ return PCIBIOS_SUCCESSFUL;
+}
#endif /* CONFIG_PCI */
/* ************************************************************************
@@ -88,7 +107,7 @@
#ifdef CONFIG_PCI
/* setup PCI host bridges */
- mpc83xx_sys_setup_hose();
+ mpc83xx_setup_hose();
#endif
mpc83xx_early_serial_map();
@@ -175,10 +194,10 @@
IRQ_SENSE_LEVEL, /* EXT 1 */
IRQ_SENSE_LEVEL, /* EXT 2 */
0, /* EXT 3 */
- 0, /* EXT 4 */
- 0, /* EXT 5 */
- 0, /* EXT 6 */
- 0, /* EXT 7 */
+ IRQ_SENSE_LEVEL, /* EXT 4 */
+ IRQ_SENSE_LEVEL, /* EXT 5 */
+ IRQ_SENSE_LEVEL, /* EXT 6 */
+ IRQ_SENSE_LEVEL, /* EXT 7 */
};
ipic_init(binfo->bi_immr_base + 0x00700, 0, MPC83xx_IPIC_IRQ_OFFSET, senses, 8);
diff -urN -X dontdiff linux-2.6.13-rc6/arch/ppc/platforms/83xx/mpc834x_sys.h linux-2.6.13-rc6-pci/arch/ppc/platforms/83xx/mpc834x_sys.h
--- linux-2.6.13-rc6/arch/ppc/platforms/83xx/mpc834x_sys.h 2005-06-18 03:48:29.000000000 +0800
+++ linux-2.6.13-rc6-pci/arch/ppc/platforms/83xx/mpc834x_sys.h 2005-08-23 10:00:08.000000000 +0800
@@ -26,7 +26,7 @@
#define VIRT_IMMRBAR ((uint)0xfe000000)
#define BCSR_PHYS_ADDR ((uint)0xf8000000)
-#define BCSR_SIZE ((uint)(32 * 1024))
+#define BCSR_SIZE ((uint)(128 * 1024))
#define BCSR_MISC_REG2_OFF 0x07
#define BCSR_MISC_REG2_PORESET 0x01
@@ -35,22 +35,34 @@
#define BCSR_MISC_REG3_CNFLOCK 0x80
#ifdef CONFIG_PCI
-/* PCI interrupt controller */
-#define PIRQA MPC83xx_IRQ_IRQ4
-#define PIRQB MPC83xx_IRQ_IRQ5
-#define PIRQC MPC83xx_IRQ_IRQ6
-#define PIRQD MPC83xx_IRQ_IRQ7
-
-#define MPC834x_SYS_PCI1_LOWER_IO 0x00000000
-#define MPC834x_SYS_PCI1_UPPER_IO 0x00ffffff
-#define MPC834x_SYS_PCI1_LOWER_MEM 0x80000000
-#define MPC834x_SYS_PCI1_UPPER_MEM 0x9fffffff
+#define PCI1_CFG_ADDR_OFFSET (0x8300)
+#define PCI1_CFG_DATA_OFFSET (0x8304)
-#define MPC834x_SYS_PCI1_IO_BASE 0xe2000000
-#define MPC834x_SYS_PCI1_MEM_OFFSET 0x00000000
+#define PCI2_CFG_ADDR_OFFSET (0x8380)
+#define PCI2_CFG_DATA_OFFSET (0x8384)
+
+#define PIRQA MPC83xx_IRQ_EXT4
+#define PIRQB MPC83xx_IRQ_EXT5
+#define PIRQC MPC83xx_IRQ_EXT6
+#define PIRQD MPC83xx_IRQ_EXT7
+
+#define MPC83xx_PCI1_LOWER_IO 0x00000000
+#define MPC83xx_PCI1_UPPER_IO 0x00ffffff
+#define MPC83xx_PCI1_LOWER_MEM 0x80000000
+#define MPC83xx_PCI1_UPPER_MEM 0x9fffffff
+#define MPC83xx_PCI1_IO_BASE 0xe2000000
+#define MPC83xx_PCI1_MEM_OFFSET 0x00000000
+#define MPC83xx_PCI1_IO_SIZE 0x01000000
+
+#define MPC83xx_PCI2_LOWER_IO 0x00000000
+#define MPC83xx_PCI2_UPPER_IO 0x00ffffff
+#define MPC83xx_PCI2_LOWER_MEM 0xa0000000
+#define MPC83xx_PCI2_UPPER_MEM 0xbfffffff
+#define MPC83xx_PCI2_IO_BASE 0xe3000000
+#define MPC83xx_PCI2_MEM_OFFSET 0x00000000
+#define MPC83xx_PCI2_IO_SIZE 0x01000000
-#define MPC834x_SYS_PCI1_IO_SIZE 0x01000000
#endif /* CONFIG_PCI */
#endif /* __MACH_MPC83XX_SYS_H__ */
diff -urN -X dontdiff linux-2.6.13-rc6/arch/ppc/syslib/ppc834x_pci.h linux-2.6.13-rc6-pci/arch/ppc/syslib/ppc834x_pci.h
--- linux-2.6.13-rc6/arch/ppc/syslib/ppc834x_pci.h 1970-01-01 08:30:00.000000000 +0830
+++ linux-2.6.13-rc6-pci/arch/ppc/syslib/ppc834x_pci.h 2005-08-19 18:30:11.000000000 +0800
@@ -0,0 +1,161 @@
+/* Created by Tony Li <tony.li@freescale.com <mailto:tony.li@freescale.com> > 2005.6
+ * Copyright (c) 2005 freescale semiconductor
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __MPC834X_PCI_H__
+#define __MPC834X_PCI_H__
+
+typedef struct immr_clk {
+ u32 spmr; /* system PLL mode Register */
+ u32 occr; /* output clock control Register */
+ u32 sccr; /* system clock control Register */
+ u8 res0[0xF4];
+} immr_clk_t;
+
+/*
+ * PCI Software Configuration Registers
+ */
+typedef struct immr_pciconf {
+ u32 config_address;
+ u32 config_data;
+ u32 int_ack;
+ u8 res[116];
+} immr_pciconf_t;
+
+/*
+ * Sequencer
+ */
+typedef struct immr_ios {
+ u32 potar0;
+ u8 res0[4];
+ u32 pobar0;
+ u8 res1[4];
+ u32 pocmr0;
+ u8 res2[4];
+ u32 potar1;
+ u8 res3[4];
+ u32 pobar1;
+ u8 res4[4];
+ u32 pocmr1;
+ u8 res5[4];
+ u32 potar2;
+ u8 res6[4];
+ u32 pobar2;
+ u8 res7[4];
+ u32 pocmr2;
+ u8 res8[4];
+ u32 potar3;
+ u8 res9[4];
+ u32 pobar3;
+ u8 res10[4];
+ u32 pocmr3;
+ u8 res11[4];
+ u32 potar4;
+ u8 res12[4];
+ u32 pobar4;
+ u8 res13[4];
+ u32 pocmr4;
+ u8 res14[4];
+ u32 potar5;
+ u8 res15[4];
+ u32 pobar5;
+ u8 res16[4];
+ u32 pocmr5;
+ u8 res17[4];
+ u8 res18[0x60];
+ u32 pmcr;
+ u8 res19[4];
+ u32 dtcr;
+ u8 res20[4];
+} immr_ios_t;
+#define POTAR_TA_MASK 0x000fffff
+#define POBAR_BA_MASK 0x000fffff
+#define POCMR_EN 0x80000000
+#define POCMR_IO 0x40000000 /* 0--memory space 1--I/O space */
+#define POCMR_SE 0x20000000 /* streaming enable */
+#define POCMR_DST 0x10000000 /* 0--PCI1 1--PCI2 */
+#define POCMR_CM_MASK 0x000fffff
+
+/*
+ * PCI Controller Control and Status Registers
+ */
+typedef struct immr_pcictrl {
+ u32 esr;
+ u32 ecdr;
+ u32 eer;
+ u32 eatcr;
+ u32 eacr;
+ u32 eeacr;
+ u32 edlcr;
+ u32 edhcr;
+ u32 gcr;
+ u32 ecr;
+ u32 gsr;
+ u8 res0[12];
+ u32 pitar2;
+ u8 res1[4];
+ u32 pibar2;
+ u32 piebar2;
+ u32 piwar2;
+ u8 res2[4];
+ u32 pitar1;
+ u8 res3[4];
+ u32 pibar1;
+ u32 piebar1;
+ u32 piwar1;
+ u8 res4[4];
+ u32 pitar0;
+ u8 res5[4];
+ u32 pibar0;
+ u8 res6[4];
+ u32 piwar0;
+ u8 res7[132];
+} immr_pcictrl_t;
+#define PITAR_TA_MASK 0x000fffff
+#define PIBAR_MASK 0xffffffff
+#define PIEBAR_EBA_MASK 0x000fffff
+#define PIWAR_EN 0x80000000
+#define PIWAR_PF 0x20000000
+#define PIWAR_RTT_MASK 0x000f0000
+#define PIWAR_RTT_NO_SNOOP 0x00040000
+#define PIWAR_RTT_SNOOP 0x00050000
+#define PIWAR_WTT_MASK 0x0000f000
+#define PIWAR_WTT_NO_SNOOP 0x00004000
+#define PIWAR_WTT_SNOOP 0x00005000
+#define PIWAR_IWS_MASK 0x0000003F
+#define PIWAR_IWS_4K 0x0000000B
+#define PIWAR_IWS_8K 0x0000000C
+#define PIWAR_IWS_16K 0x0000000D
+#define PIWAR_IWS_32K 0x0000000E
+#define PIWAR_IWS_64K 0x0000000F
+#define PIWAR_IWS_128K 0x00000010
+#define PIWAR_IWS_256K 0x00000011
+#define PIWAR_IWS_512K 0x00000012
+#define PIWAR_IWS_1M 0x00000013
+#define PIWAR_IWS_2M 0x00000014
+#define PIWAR_IWS_4M 0x00000015
+#define PIWAR_IWS_8M 0x00000016
+#define PIWAR_IWS_16M 0x00000017
+#define PIWAR_IWS_32M 0x00000018
+#define PIWAR_IWS_64M 0x00000019
+#define PIWAR_IWS_128M 0x0000001A
+#define PIWAR_IWS_256M 0x0000001B
+#define PIWAR_IWS_512M 0x0000001C
+#define PIWAR_IWS_1G 0x0000001D
+#define PIWAR_IWS_2G 0x0000001E
+
+#endif /*__MPC834X_PCI_H__*/
diff -urN -X dontdiff linux-2.6.13-rc6/arch/ppc/syslib/ppc83xx_setup.c linux-2.6.13-rc6-pci/arch/ppc/syslib/ppc83xx_setup.c
--- linux-2.6.13-rc6/arch/ppc/syslib/ppc83xx_setup.c 2005-08-09 18:00:47.000000000 +0800
+++ linux-2.6.13-rc6-pci/arch/ppc/syslib/ppc83xx_setup.c 2005-08-23 10:18:04.000000000 +0800
@@ -11,6 +11,20 @@
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * July 2005, Tony Li<tony.li@freescale.com <mailto:tony.li@freescale.com> >
+ * Added PCI support
+ * PCI can be enabled only if MPC834x SYS board combined with PIB(Platform
+ * IO Board) board in which three physical PCI slots locate.
*/
#include <linux/config.h>
@@ -19,7 +33,7 @@
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/serial.h>
-#include <linux/tty.h> /* for linux/serial_core.h */
+#include <linux/tty.h> /* for linux/serial_core.h */
#include <linux/serial_core.h>
#include <linux/serial_8250.h>
@@ -31,27 +45,29 @@
#include <asm/delay.h>
#include <syslib/ppc83xx_setup.h>
+#if defined(CONFIG_PCI)
+#include <asm/delay.h>
+#include <syslib/ppc834x_pci.h>
+#endif
phys_addr_t immrbar;
/* Return the amount of memory */
-unsigned long __init
-mpc83xx_find_end_of_memory(void)
+unsigned long __init mpc83xx_find_end_of_memory(void)
{
- bd_t *binfo;
+ bd_t *binfo;
- binfo = (bd_t *) __res;
+ binfo = (bd_t *) __res;
- return binfo->bi_memsize;
+ return binfo->bi_memsize;
}
-long __init
-mpc83xx_time_init(void)
+long __init mpc83xx_time_init(void)
{
#define SPCR_OFFS 0x00000110
#define SPCR_TBEN 0x00400000
- bd_t *binfo = (bd_t *)__res;
+ bd_t *binfo = (bd_t *) __res;
u32 *spcr = ioremap(binfo->bi_immr_base + SPCR_OFFS, 4);
*spcr |= SPCR_TBEN;
@@ -62,11 +78,10 @@
}
/* The decrementer counts at the system (internal) clock freq divided by 4 */
-void __init
-mpc83xx_calibrate_decr(void)
+void __init mpc83xx_calibrate_decr(void)
{
- bd_t *binfo = (bd_t *) __res;
- unsigned int freq, divisor;
+ bd_t *binfo = (bd_t *) __res;
+ unsigned int freq, divisor;
freq = binfo->bi_busfreq;
divisor = 4;
@@ -75,15 +90,14 @@
}
#ifdef CONFIG_SERIAL_8250
-void __init
-mpc83xx_early_serial_map(void)
+void __init mpc83xx_early_serial_map(void)
{
#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
struct uart_port serial_req;
#endif
struct plat_serial8250_port *pdata;
bd_t *binfo = (bd_t *) __res;
- pdata = (struct plat_serial8250_port *) ppc_sys_get_pdata(MPC83xx_DUART);
+ pdata = (struct plat_serial8250_port *)ppc_sys_get_pdata(MPC83xx_DUART);
/* Setup serial port access */
pdata[0].uartclk = binfo->bi_busfreq;
@@ -91,7 +105,7 @@
pdata[0].membase = ioremap(pdata[0].mapbase, 0x100);
#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
- memset(&serial_req, 0, sizeof (serial_req));
+ memset(&serial_req, 0, sizeof(serial_req));
serial_req.iotype = SERIAL_IO_MEM;
serial_req.mapbase = pdata[0].mapbase;
serial_req.membase = pdata[0].membase;
@@ -114,8 +128,7 @@
}
#endif
-void
-mpc83xx_restart(char *cmd)
+void mpc83xx_restart(char *cmd)
{
volatile unsigned char __iomem *reg;
unsigned char tmp;
@@ -129,7 +142,7 @@
* Otherwise the reset asserts but doesn't clear.
*/
tmp = in_8(reg + BCSR_MISC_REG3_OFF);
- tmp |= BCSR_MISC_REG3_CNFLOCK; /* low true, high false */
+ tmp |= BCSR_MISC_REG3_CNFLOCK; /* low true, high false */
out_8(reg + BCSR_MISC_REG3_OFF, tmp);
/*
@@ -145,21 +158,252 @@
tmp |= BCSR_MISC_REG2_PORESET;
out_8(reg + BCSR_MISC_REG2_OFF, tmp);
- for(;;);
+ for (;;) ;
}
-void
-mpc83xx_power_off(void)
+void mpc83xx_power_off(void)
{
local_irq_disable();
- for(;;);
+ for (;;) ;
}
-void
-mpc83xx_halt(void)
+void mpc83xx_halt(void)
{
local_irq_disable();
- for(;;);
+ for (;;) ;
+}
+
+#if defined(CONFIG_PCI)
+void __init mpc83xx_setup_pci1(struct pci_controller *hose)
+{
+ unsigned short reg16;
+ volatile immr_pcictrl_t *pci_ctrl;
+ volatile immr_ios_t *ios;
+ bd_t *binfo = (bd_t *) __res;
+
+ pci_ctrl = ioremap(binfo->bi_immr_base + 0x8500,
+ sizeof(immr_pcictrl_t));
+ ios = ioremap(binfo->bi_immr_base + 0x8400, sizeof(immr_ios_t));
+
+ /*
+ * Configure PCI Outbound Translation Windows
+ */
+ ios->potar0 = (MPC83xx_PCI1_LOWER_MEM >> 12) & POTAR_TA_MASK;
+ ios->pobar0 = (MPC83xx_PCI1_LOWER_MEM >> 12) & POBAR_BA_MASK;
+ ios->pocmr0 = POCMR_EN |
+ (((~0UL -
+ (MPC83xx_PCI1_UPPER_MEM -
+ MPC83xx_PCI1_LOWER_MEM)) >> 12) & POCMR_CM_MASK);
+
+ /* mapped to PCI1 IO space 0x0 to local 0xe2000000 */
+ ios->potar1 = (MPC83xx_PCI1_LOWER_IO >> 12) & POTAR_TA_MASK;
+ ios->pobar1 = (MPC83xx_PCI1_IO_BASE >> 12) & POBAR_BA_MASK;
+ ios->pocmr1 = POCMR_EN | POCMR_IO |
+ (((~0UL -
+ (MPC83xx_PCI1_UPPER_IO -
+ MPC83xx_PCI1_LOWER_IO)) >> 12) & POCMR_CM_MASK);
+
+ /*
+ * Configure PCI Inbound Translation Windows
+ */
+ pci_ctrl->pitar1 = 0x0;
+ pci_ctrl->pibar1 = 0x0;
+ pci_ctrl->piebar1 = 0x0;
+ pci_ctrl->piwar1 =
+ PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP |
+ PIWAR_IWS_2G;
+
+ /*
+ * Release PCI RST signal
+ */
+ pci_ctrl->gcr = 0;
+ udelay(2000);
+ pci_ctrl->gcr = 1;
+ udelay(2000);
+
+ reg16 = 0xff;
+ early_read_config_word(hose, hose->first_busno, 0, PCI_COMMAND, ®16);
+ reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
+ early_write_config_word(hose, hose->first_busno, 0, PCI_COMMAND, reg16);
+
+ /*
+ * Clear non-reserved bits in status register.
+ */
+ early_write_config_word(hose, hose->first_busno, 0, PCI_STATUS, 0xffff);
+ early_write_config_byte(hose, hose->first_busno, 0, PCI_LATENCY_TIMER,
+ 0x80);
}
-/* PCI SUPPORT DOES NOT EXIT, MODEL after ppc85xx_setup.c */
+void __init mpc834x_ads_setup_pci2(struct pci_controller *hose)
+{
+ unsigned short reg16;
+ volatile immr_pcictrl_t *pci_ctrl;
+ volatile immr_ios_t *ios;
+ bd_t *binfo = (bd_t *) __res;
+
+ pci_ctrl = ioremap(binfo->bi_immr_base + 0x8600,
+ sizeof(immr_pcictrl_t));
+ ios = ioremap(binfo->bi_immr_base + 0x8400, sizeof(immr_ios_t));
+
+ /*
+ * Configure PCI Outbound Translation Windows
+ */
+ ios->potar3 = (MPC83xx_PCI2_LOWER_MEM >> 12) & POTAR_TA_MASK;
+ ios->pobar3 = (MPC83xx_PCI2_LOWER_MEM >> 12) & POBAR_BA_MASK;
+ ios->pocmr3 = POCMR_EN | POCMR_DST |
+ (((~0UL -
+ (MPC83xx_PCI2_UPPER_MEM -
+ MPC83xx_PCI2_LOWER_MEM)) >> 12) & POCMR_CM_MASK);
+
+ /* mapped to PCI2 IO space 0x0 to local 0xe3000000 */
+ ios->potar4 = (MPC83xx_PCI2_LOWER_IO >> 12) & POTAR_TA_MASK;
+ ios->pobar4 = (MPC83xx_PCI2_IO_BASE >> 12) & POBAR_BA_MASK;
+ ios->pocmr4 = POCMR_EN | POCMR_DST | POCMR_IO |
+ (((~0UL -
+ (MPC83xx_PCI2_UPPER_IO -
+ MPC83xx_PCI2_LOWER_IO)) >> 12) & POCMR_CM_MASK);
+
+ /*
+ * Configure PCI Inbound Translation Windows
+ */
+ pci_ctrl->pitar1 = 0x0;
+ pci_ctrl->pibar1 = 0x0;
+ pci_ctrl->piebar1 = 0x0;
+ pci_ctrl->piwar1 =
+ PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP |
+ PIWAR_IWS_2G;
+
+ /*
+ * Release PCI RST signal
+ */
+ pci_ctrl->gcr = 0;
+ udelay(2000);
+ pci_ctrl->gcr = 1;
+ udelay(2000);
+
+ reg16 = 0xff;
+ early_read_config_word(hose, hose->first_busno, 0, PCI_COMMAND, ®16);
+ reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
+ early_write_config_word(hose, hose->first_busno, 0, PCI_COMMAND, reg16);
+
+ /*
+ * Clear non-reserved bits in status register.
+ */
+ early_write_config_word(hose, hose->first_busno, 0, PCI_STATUS, 0xffff);
+ early_write_config_byte(hose, hose->first_busno, 0, PCI_LATENCY_TIMER,
+ 0x80);
+}
+
+extern int mpc83xx_ads_map_irq(struct pci_dev *dev, unsigned char idsel,
+ unsigned char pin);
+extern int mpc83xx_ads_exclude_device(u_char bus, u_char devfn);
+
+/*
+ * PCI buses can be enabled only if SYS board combinates with PIB(Platform IO Board) board
+ * which provide 3 PCI slots. There is 2 PCI buses and 3 PCI slots,so people must configure
+ * the routes between them before enable PCI bus. This routes are under the control of PCA9555PW
+ * device which can be accessed via I2C bus 2 and are configured by firmware. Refer to Freescale to
+ * get more information about firmware configuration.
+ */
+void __init mpc83xx_setup_hose(void)
+{
+ unsigned long val32;
+ volatile immr_clk_t *clk;
+ volatile struct pci_controller *hose1;
+#ifdef CONFIG_MPC834x_PCI2
+ volatile struct pci_controller *hose2;
+#endif
+ volatile bd_t *binfo = (bd_t *) __res;
+
+ clk = ioremap(binfo->bi_immr_base + 0xA00, sizeof(immr_clk_t));
+
+ /*
+ * Configure PCI controller and PCI_CLK_OUTPUT both in 66M mode
+ */
+ val32 = clk->occr;
+ udelay(2000);
+ clk->occr = 0xff000000;
+ udelay(2000);
+
+ hose1 = pcibios_alloc_controller();
+ if (!hose1)
+ return;
+
+ ppc_md.pci_swizzle = common_swizzle;
+ ppc_md.pci_map_irq = mpc83xx_ads_map_irq;
+
+ hose1->bus_offset = 0;
+ hose1->first_busno = 0;
+ hose1->last_busno = 0xff;
+
+ setup_indirect_pci(hose1, binfo->bi_immr_base + PCI1_CFG_ADDR_OFFSET,
+ binfo->bi_immr_base + PCI1_CFG_DATA_OFFSET);
+ hose1->set_cfg_type = 1;
+
+ mpc83xx_setup_pci1(hose1);
+
+ hose1->pci_mem_offset = MPC83xx_PCI1_MEM_OFFSET;
+ hose1->mem_space.start = MPC83xx_PCI1_LOWER_MEM;
+ hose1->mem_space.end = MPC83xx_PCI1_UPPER_MEM;
+
+ hose1->io_base_phys = MPC83xx_PCI1_IO_BASE;
+ hose1->io_space.start = MPC83xx_PCI1_LOWER_IO;
+ hose1->io_space.end = MPC83xx_PCI1_UPPER_IO;
+#ifdef CONFIG_MPC834x_PCI2
+ isa_io_base = (unsigned long)ioremap(MPC83xx_PCI1_IO_BASE,
+ MPC83xx_PCI1_IO_SIZE +
+ MPC83xx_PCI2_IO_SIZE);
+#else
+ isa_io_base = (unsigned long)ioremap(MPC83xx_PCI1_IO_BASE,
+ MPC83xx_PCI1_IO_SIZE);
+#endif /* CONFIG_MPC834x_PCI2 */
+ hose1->io_base_virt = (void *)isa_io_base;
+ /* setup resources */
+ pci_init_resource(&hose1->io_resource,
+ MPC83xx_PCI1_LOWER_IO,
+ MPC83xx_PCI1_UPPER_IO,
+ IORESOURCE_IO, "PCI host bridge 1");
+ pci_init_resource(&hose1->mem_resources[0],
+ MPC83xx_PCI1_LOWER_MEM,
+ MPC83xx_PCI1_UPPER_MEM,
+ IORESOURCE_MEM, "PCI host bridge 1");
+
+ ppc_md.pci_exclude_device = mpc83xx_ads_exclude_device;
+ hose1->last_busno = pciauto_bus_scan(hose1, hose1->first_busno);
+
+#ifdef CONFIG_MPC834x_PCI2
+ hose2 = pcibios_alloc_controller();
+ if (!hose2)
+ return;
+
+ hose2->bus_offset = hose1->last_busno + 1;
+ hose2->first_busno = hose1->last_busno + 1;
+ hose2->last_busno = 0xff;
+ setup_indirect_pci(hose2, binfo->bi_immr_base + PCI2_CFG_ADDR_OFFSET,
+ binfo->bi_immr_base + PCI2_CFG_DATA_OFFSET);
+ hose2->set_cfg_type = 1;
+
+ mpc834x_ads_setup_pci2(hose2);
+
+ hose2->pci_mem_offset = MPC83xx_PCI2_MEM_OFFSET;
+ hose2->mem_space.start = MPC83xx_PCI2_LOWER_MEM;
+ hose2->mem_space.end = MPC83xx_PCI2_UPPER_MEM;
+
+ hose2->io_base_phys = MPC83xx_PCI2_IO_BASE;
+ hose2->io_space.start = MPC83xx_PCI2_LOWER_IO;
+ hose2->io_space.end = MPC83xx_PCI2_UPPER_IO;
+ hose2->io_base_virt = (void *)(isa_io_base + MPC83xx_PCI1_IO_SIZE);
+ /* setup resources */
+ pci_init_resource(&hose2->io_resource,
+ MPC83xx_PCI2_LOWER_IO,
+ MPC83xx_PCI2_UPPER_IO,
+ IORESOURCE_IO, "PCI host bridge 2");
+ pci_init_resource(&hose2->mem_resources[0],
+ MPC83xx_PCI2_LOWER_MEM,
+ MPC83xx_PCI2_UPPER_MEM,
+ IORESOURCE_MEM, "PCI host bridge 2");
+
+ hose2->last_busno = pciauto_bus_scan(hose2, hose2->first_busno);
+#endif /* CONFIG_MPC834x_PCI2 */
+}
+#endif /*CONFIG_PCI */
diff -urN -X dontdiff linux-2.6.13-rc6/arch/ppc/syslib/ppc83xx_setup.h linux-2.6.13-rc6-pci/arch/ppc/syslib/ppc83xx_setup.h
--- linux-2.6.13-rc6/arch/ppc/syslib/ppc83xx_setup.h 2005-06-18 03:48:29.000000000 +0800
+++ linux-2.6.13-rc6-pci/arch/ppc/syslib/ppc83xx_setup.h 2005-08-23 10:25:43.000000000 +0800
@@ -12,6 +12,14 @@
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __PPC_SYSLIB_PPC83XX_SETUP_H
@@ -20,6 +28,7 @@
#include <linux/config.h>
#include <linux/init.h>
#include <asm/ppcboot.h>
+#include <asm/mpc83xx.h>
extern unsigned long mpc83xx_find_end_of_memory(void) __init;
extern long mpc83xx_time_init(void) __init;
@@ -30,15 +39,6 @@
extern void mpc83xx_halt(void);
extern void mpc83xx_setup_hose(void) __init;
-/* PCI config */
-#if 0
-#define PCI1_CFG_ADDR_OFFSET (FIXME)
-#define PCI1_CFG_DATA_OFFSET (FIXME)
-
-#define PCI2_CFG_ADDR_OFFSET (FIXME)
-#define PCI2_CFG_DATA_OFFSET (FIXME)
-#endif
-
/* Serial Config */
#ifdef CONFIG_SERIAL_MANY_PORTS
#define RS_TABLE_SIZE 64
@@ -50,4 +50,4 @@
#define BASE_BAUD 115200
#endif
-#endif /* __PPC_SYSLIB_PPC83XX_SETUP_H */
+#endif /* __PPC_SYSLIB_PPC83XX_SETUP_H */
[-- Attachment #2: Type: text/html, Size: 33857 bytes --]
^ permalink raw reply [flat|nested] 10+ messages in thread* Re: [PATCH] ppc32 :Added PCI support for MPC83xx
2005-08-30 8:55 Li Tony-r64360
@ 2005-08-30 14:47 ` Kumar Gala
0 siblings, 0 replies; 10+ messages in thread
From: Kumar Gala @ 2005-08-30 14:47 UTC (permalink / raw)
To: Li Tony-r64360; +Cc: Chu hanjin-r52514, linux-kernel, linuxppc-embedded
Tony,
I'm going to assume that I only need the following lines:
> 0, /* EXT 3 */
> - 0, /* EXT 4 */
> - 0, /* EXT 5 */
> - 0, /* EXT 6 */
> - 0, /* EXT 7 */
> + IRQ_SENSE_LEVEL, /* EXT 4 */
> + IRQ_SENSE_LEVEL, /* EXT 5 */
> + IRQ_SENSE_LEVEL, /* EXT 6 */
> + IRQ_SENSE_LEVEL, /* EXT 7 */
Please, in the future either just create a patch an top of original
patch which shows just the new delta or start from the patch that I
sent since that is going to be my starting point. Your patch has a
lot of reformatting changes which make it extremely difficult to
review (hard to tell if the change is because of some fix or just
whitespace).
- kumar
On Aug 30, 2005, at 3:55 AM, Li Tony-r64360 wrote:
> MPC83xx cpu has two PCI buses. This patch adds support for them.
>
> After system boot. The code initializes PCI inbound/outbound
> windows, allocate and register PCI memory/io space. Be aware
> that this patch depand on the firmware.
>
> Signed-off-by: Tony Li <tony.li@freescale.com>
>
> ---
> author Tony Li <tony.li@freescale.com> Tue, 30 Aug 2005
> committer Tony Li <tony.li@freescale.com> Tue, 30 Aug 2005
>
> diff -urN -X dontdiff linux-2.6.13-rc6/arch/ppc/Kconfig
> linux-2.6.13-rc6-pci/arch/ppc/Kconfig
> --- linux-2.6.13-rc6/arch/ppc/Kconfig 2005-08-09 18:00:47.000000000
> +0800
> +++ linux-2.6.13-rc6-pci/arch/ppc/Kconfig 2005-08-19
> 18:17:27.000000000
> +0800
> @@ -712,6 +712,11 @@
> bool "Freescale MPC834x SYS"
> help
> This option enables support for the MPC 834x SYS evaluation board.
> + Be aware that PCI buses can only function when SYS board is
> plugged
> on
> + PIB (Platform IO Board) board from Freescale which provide 3 PCI
> slots.
> + Just like PC,the board level initalization is bootloader`s
> responsiblilty.
> + The PCI deponds on bootloader configurate board corretly. Refer to
> Freescale
> + to get more information about this.
>
> endchoice
>
> @@ -1191,6 +1196,10 @@
> bool
> default PCI
>
> +config MPC834x_PCI2
> + bool
> + default y if PCI && MPC834x_SYS
> +
> config PCI_QSPAN
> bool "QSpan PCI"
> depends on !4xx && !CPM2 && 8xx
> diff -urN -X dontdiff
> linux-2.6.13-rc6/arch/ppc/platforms/83xx/mpc834x_sys.c
> linux-2.6.13-rc6-pci/arch/ppc/platforms/83xx/mpc834x_sys.c
> --- linux-2.6.13-rc6/arch/ppc/platforms/83xx/mpc834x_sys.c 2005-08-09
> 18:00:47.000000000 +0800
> +++ linux-2.6.13-rc6-pci/arch/ppc/platforms/83xx/mpc834x_sys.c
> 2005-08-30 16:38:52.000000000 +0800
> @@ -62,9 +62,28 @@
> unsigned char __res[sizeof (bd_t)];
>
> #ifdef CONFIG_PCI
> -#error "PCI is not supported"
> -/* NEED mpc83xx_map_irq & mpc83xx_exclude_device
> - see platforms/85xx/mpc85xx_ads_common.c */
> +int
> +mpc83xx_ads_map_irq(struct pci_dev *dev,unsigned char idsel,unsigned
> char pin)
> +{
> + char pci_irq_table[][4]=
> + /*
> + * PCI IDSEL&INTPIN -> INTLINE
> + * INTA INTB INTC INTD
> + */
> + {
> + {PIRQA, PIRQB, PIRQC, PIRQD}, /* idsel 0x11 */
> + {PIRQC, PIRQD, PIRQA, PIRQB}, /* idsel 0x12 */
> + {PIRQD, PIRQA, PIRQB, PIRQC} /* idsel 0x13 */
> + };
> + /* MPC8349 MDS board specific */
> + const long min_idsel=0x11,max_idsel=0x13,irqs_per_slot=4;
> + return PCI_IRQ_TABLE_LOOKUP;
> +}
> +int
> +mpc83xx_ads_exclude_device(u_char bus, u_char devfn)
> +{
> + return PCIBIOS_SUCCESSFUL;
> +}
> #endif /* CONFIG_PCI */
>
> /*
> **********************************************************************
> **
> @@ -88,7 +107,7 @@
>
> #ifdef CONFIG_PCI
> /* setup PCI host bridges */
> - mpc83xx_sys_setup_hose();
> + mpc83xx_setup_hose();
> #endif
> mpc83xx_early_serial_map();
>
> @@ -175,10 +194,10 @@
> IRQ_SENSE_LEVEL, /* EXT 1 */
> IRQ_SENSE_LEVEL, /* EXT 2 */
> 0, /* EXT 3 */
> - 0, /* EXT 4 */
> - 0, /* EXT 5 */
> - 0, /* EXT 6 */
> - 0, /* EXT 7 */
> + IRQ_SENSE_LEVEL, /* EXT 4 */
> + IRQ_SENSE_LEVEL, /* EXT 5 */
> + IRQ_SENSE_LEVEL, /* EXT 6 */
> + IRQ_SENSE_LEVEL, /* EXT 7 */
> };
>
> ipic_init(binfo->bi_immr_base + 0x00700, 0, MPC83xx_IPIC_IRQ_OFFSET,
> senses, 8);
> diff -urN -X dontdiff
> linux-2.6.13-rc6/arch/ppc/platforms/83xx/mpc834x_sys.h
> linux-2.6.13-rc6-pci/arch/ppc/platforms/83xx/mpc834x_sys.h
> --- linux-2.6.13-rc6/arch/ppc/platforms/83xx/mpc834x_sys.h 2005-06-18
> 03:48:29.000000000 +0800
> +++ linux-2.6.13-rc6-pci/arch/ppc/platforms/83xx/mpc834x_sys.h
> 2005-08-23 10:00:08.000000000 +0800
> @@ -26,7 +26,7 @@
> #define VIRT_IMMRBAR ((uint)0xfe000000)
>
> #define BCSR_PHYS_ADDR ((uint)0xf8000000)
> -#define BCSR_SIZE ((uint)(32 * 1024))
> +#define BCSR_SIZE ((uint)(128 * 1024))
>
> #define BCSR_MISC_REG2_OFF 0x07
> #define BCSR_MISC_REG2_PORESET 0x01
> @@ -35,22 +35,34 @@
> #define BCSR_MISC_REG3_CNFLOCK 0x80
>
> #ifdef CONFIG_PCI
> -/* PCI interrupt controller */
> -#define PIRQA MPC83xx_IRQ_IRQ4
> -#define PIRQB MPC83xx_IRQ_IRQ5
> -#define PIRQC MPC83xx_IRQ_IRQ6
> -#define PIRQD MPC83xx_IRQ_IRQ7
> -
> -#define MPC834x_SYS_PCI1_LOWER_IO 0x00000000
> -#define MPC834x_SYS_PCI1_UPPER_IO 0x00ffffff
>
> -#define MPC834x_SYS_PCI1_LOWER_MEM 0x80000000
> -#define MPC834x_SYS_PCI1_UPPER_MEM 0x9fffffff
> +#define PCI1_CFG_ADDR_OFFSET (0x8300)
> +#define PCI1_CFG_DATA_OFFSET (0x8304)
>
> -#define MPC834x_SYS_PCI1_IO_BASE 0xe2000000
> -#define MPC834x_SYS_PCI1_MEM_OFFSET 0x00000000
> +#define PCI2_CFG_ADDR_OFFSET (0x8380)
> +#define PCI2_CFG_DATA_OFFSET (0x8384)
> +
> +#define PIRQA MPC83xx_IRQ_EXT4
> +#define PIRQB MPC83xx_IRQ_EXT5
> +#define PIRQC MPC83xx_IRQ_EXT6
> +#define PIRQD MPC83xx_IRQ_EXT7
> +
> +#define MPC83xx_PCI1_LOWER_IO 0x00000000
> +#define MPC83xx_PCI1_UPPER_IO 0x00ffffff
> +#define MPC83xx_PCI1_LOWER_MEM 0x80000000
> +#define MPC83xx_PCI1_UPPER_MEM 0x9fffffff
> +#define MPC83xx_PCI1_IO_BASE 0xe2000000
> +#define MPC83xx_PCI1_MEM_OFFSET 0x00000000
> +#define MPC83xx_PCI1_IO_SIZE 0x01000000
> +
> +#define MPC83xx_PCI2_LOWER_IO 0x00000000
> +#define MPC83xx_PCI2_UPPER_IO 0x00ffffff
> +#define MPC83xx_PCI2_LOWER_MEM 0xa0000000
> +#define MPC83xx_PCI2_UPPER_MEM 0xbfffffff
> +#define MPC83xx_PCI2_IO_BASE 0xe3000000
> +#define MPC83xx_PCI2_MEM_OFFSET 0x00000000
> +#define MPC83xx_PCI2_IO_SIZE 0x01000000
>
> -#define MPC834x_SYS_PCI1_IO_SIZE 0x01000000
> #endif /* CONFIG_PCI */
>
> #endif /* __MACH_MPC83XX_SYS_H__ */
> diff -urN -X dontdiff linux-2.6.13-rc6/arch/ppc/syslib/ppc834x_pci.h
> linux-2.6.13-rc6-pci/arch/ppc/syslib/ppc834x_pci.h
> --- linux-2.6.13-rc6/arch/ppc/syslib/ppc834x_pci.h 1970-01-01
> 08:30:00.000000000 +0830
> +++ linux-2.6.13-rc6-pci/arch/ppc/syslib/ppc834x_pci.h 2005-08-19
> 18:30:11.000000000 +0800
> @@ -0,0 +1,161 @@
> +/* Created by Tony Li <tony.li@freescale.com> 2005.6
> + * Copyright (c) 2005 freescale semiconductor
> + *
> + * This program is free software; you can redistribute it and/or
> modify it
> + * under the terms of the GNU General Public License as
> published by
> the
> + * Free Software Foundation; either version 2 of the License, or
> (at
> your
> + * option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> along
> + * with this program; if not, write to the Free Software Foundation,
> Inc.,
> + * 675 Mass Ave, Cambridge, MA 02139, USA.
> + */
> +
> +#ifndef __MPC834X_PCI_H__
> +#define __MPC834X_PCI_H__
> +
> +typedef struct immr_clk {
> + u32 spmr; /* system PLL mode Register */
> + u32 occr; /* output clock control Register */
> + u32 sccr; /* system clock control Register */
> + u8 res0[0xF4];
> +} immr_clk_t;
> +
> +/*
> + * PCI Software Configuration Registers
> + */
> +typedef struct immr_pciconf {
> + u32 config_address;
> + u32 config_data;
> + u32 int_ack;
> + u8 res[116];
> +} immr_pciconf_t;
> +
> +/*
> + * Sequencer
> + */
> +typedef struct immr_ios {
> + u32 potar0;
> + u8 res0[4];
> + u32 pobar0;
> + u8 res1[4];
> + u32 pocmr0;
> + u8 res2[4];
> + u32 potar1;
> + u8 res3[4];
> + u32 pobar1;
> + u8 res4[4];
> + u32 pocmr1;
> + u8 res5[4];
> + u32 potar2;
> + u8 res6[4];
> + u32 pobar2;
> + u8 res7[4];
> + u32 pocmr2;
> + u8 res8[4];
> + u32 potar3;
> + u8 res9[4];
> + u32 pobar3;
> + u8 res10[4];
> + u32 pocmr3;
> + u8 res11[4];
> + u32 potar4;
> + u8 res12[4];
> + u32 pobar4;
> + u8 res13[4];
> + u32 pocmr4;
> + u8 res14[4];
> + u32 potar5;
> + u8 res15[4];
> + u32 pobar5;
> + u8 res16[4];
> + u32 pocmr5;
> + u8 res17[4];
> + u8 res18[0x60];
> + u32 pmcr;
> + u8 res19[4];
> + u32 dtcr;
> + u8 res20[4];
> +} immr_ios_t;
> +#define POTAR_TA_MASK 0x000fffff
> +#define POBAR_BA_MASK 0x000fffff
> +#define POCMR_EN 0x80000000
> +#define POCMR_IO 0x40000000 /* 0--memory space 1--I/O space */
> +#define POCMR_SE 0x20000000 /* streaming enable */
> +#define POCMR_DST 0x10000000 /* 0--PCI1 1--PCI2 */
> +#define POCMR_CM_MASK 0x000fffff
> +
> +/*
> + * PCI Controller Control and Status Registers
> + */
> +typedef struct immr_pcictrl {
> + u32 esr;
> + u32 ecdr;
> + u32 eer;
> + u32 eatcr;
> + u32 eacr;
> + u32 eeacr;
> + u32 edlcr;
> + u32 edhcr;
> + u32 gcr;
> + u32 ecr;
> + u32 gsr;
> + u8 res0[12];
> + u32 pitar2;
> + u8 res1[4];
> + u32 pibar2;
> + u32 piebar2;
> + u32 piwar2;
> + u8 res2[4];
> + u32 pitar1;
> + u8 res3[4];
> + u32 pibar1;
> + u32 piebar1;
> + u32 piwar1;
> + u8 res4[4];
> + u32 pitar0;
> + u8 res5[4];
> + u32 pibar0;
> + u8 res6[4];
> + u32 piwar0;
> + u8 res7[132];
> +} immr_pcictrl_t;
> +#define PITAR_TA_MASK 0x000fffff
> +#define PIBAR_MASK 0xffffffff
> +#define PIEBAR_EBA_MASK 0x000fffff
> +#define PIWAR_EN 0x80000000
> +#define PIWAR_PF 0x20000000
> +#define PIWAR_RTT_MASK 0x000f0000
> +#define PIWAR_RTT_NO_SNOOP 0x00040000
> +#define PIWAR_RTT_SNOOP 0x00050000
> +#define PIWAR_WTT_MASK 0x0000f000
> +#define PIWAR_WTT_NO_SNOOP 0x00004000
> +#define PIWAR_WTT_SNOOP 0x00005000
> +#define PIWAR_IWS_MASK 0x0000003F
> +#define PIWAR_IWS_4K 0x0000000B
> +#define PIWAR_IWS_8K 0x0000000C
> +#define PIWAR_IWS_16K 0x0000000D
> +#define PIWAR_IWS_32K 0x0000000E
> +#define PIWAR_IWS_64K 0x0000000F
> +#define PIWAR_IWS_128K 0x00000010
> +#define PIWAR_IWS_256K 0x00000011
> +#define PIWAR_IWS_512K 0x00000012
> +#define PIWAR_IWS_1M 0x00000013
> +#define PIWAR_IWS_2M 0x00000014
> +#define PIWAR_IWS_4M 0x00000015
> +#define PIWAR_IWS_8M 0x00000016
> +#define PIWAR_IWS_16M 0x00000017
> +#define PIWAR_IWS_32M 0x00000018
> +#define PIWAR_IWS_64M 0x00000019
> +#define PIWAR_IWS_128M 0x0000001A
> +#define PIWAR_IWS_256M 0x0000001B
> +#define PIWAR_IWS_512M 0x0000001C
> +#define PIWAR_IWS_1G 0x0000001D
> +#define PIWAR_IWS_2G 0x0000001E
> +
> +#endif /*__MPC834X_PCI_H__*/
> diff -urN -X dontdiff linux-2.6.13-rc6/arch/ppc/syslib/ppc83xx_setup.c
> linux-2.6.13-rc6-pci/arch/ppc/syslib/ppc83xx_setup.c
> --- linux-2.6.13-rc6/arch/ppc/syslib/ppc83xx_setup.c 2005-08-09
> 18:00:47.000000000 +0800
> +++ linux-2.6.13-rc6-pci/arch/ppc/syslib/ppc83xx_setup.c 2005-08-23
> 10:18:04.000000000 +0800
> @@ -11,6 +11,20 @@
> * under the terms of the GNU General Public License as
> published by
> the
> * Free Software Foundation; either version 2 of the License, or
> (at
> your
> * option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> along
> + * with this program; if not, write to the Free Software Foundation,
> Inc.,
> + * 675 Mass Ave, Cambridge, MA 02139, USA.
> + *
> + * July 2005, Tony Li<tony.li@freescale.com>
> + * Added PCI support
> + * PCI can be enabled only if MPC834x SYS board combined with
> PIB(Platform
> + * IO Board) board in which three physical PCI slots locate.
> */
>
> #include <linux/config.h>
> @@ -19,7 +33,7 @@
> #include <linux/init.h>
> #include <linux/pci.h>
> #include <linux/serial.h>
> -#include <linux/tty.h> /* for linux/serial_core.h */
> +#include <linux/tty.h> /* for linux/serial_core.h */
> #include <linux/serial_core.h>
> #include <linux/serial_8250.h>
>
> @@ -31,27 +45,29 @@
> #include <asm/delay.h>
>
> #include <syslib/ppc83xx_setup.h>
> +#if defined(CONFIG_PCI)
> +#include <asm/delay.h>
> +#include <syslib/ppc834x_pci.h>
> +#endif
>
> phys_addr_t immrbar;
>
> /* Return the amount of memory */
> -unsigned long __init
> -mpc83xx_find_end_of_memory(void)
> +unsigned long __init mpc83xx_find_end_of_memory(void)
> {
> - bd_t *binfo;
> + bd_t *binfo;
>
> - binfo = (bd_t *) __res;
> + binfo = (bd_t *) __res;
>
> - return binfo->bi_memsize;
> + return binfo->bi_memsize;
> }
>
> -long __init
> -mpc83xx_time_init(void)
> +long __init mpc83xx_time_init(void)
> {
> #define SPCR_OFFS 0x00000110
> #define SPCR_TBEN 0x00400000
>
> - bd_t *binfo = (bd_t *)__res;
> + bd_t *binfo = (bd_t *) __res;
> u32 *spcr = ioremap(binfo->bi_immr_base + SPCR_OFFS, 4);
>
> *spcr |= SPCR_TBEN;
> @@ -62,11 +78,10 @@
> }
>
> /* The decrementer counts at the system (internal) clock freq divided
> by 4 */
> -void __init
> -mpc83xx_calibrate_decr(void)
> +void __init mpc83xx_calibrate_decr(void)
> {
> - bd_t *binfo = (bd_t *) __res;
> - unsigned int freq, divisor;
> + bd_t *binfo = (bd_t *) __res;
> + unsigned int freq, divisor;
>
> freq = binfo->bi_busfreq;
> divisor = 4;
> @@ -75,15 +90,14 @@
> }
>
> #ifdef CONFIG_SERIAL_8250
> -void __init
> -mpc83xx_early_serial_map(void)
> +void __init mpc83xx_early_serial_map(void)
> {
> #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
> struct uart_port serial_req;
> #endif
> struct plat_serial8250_port *pdata;
> bd_t *binfo = (bd_t *) __res;
> - pdata = (struct plat_serial8250_port *)
> ppc_sys_get_pdata(MPC83xx_DUART);
> + pdata = (struct plat_serial8250_port
> *)ppc_sys_get_pdata(MPC83xx_DUART);
>
> /* Setup serial port access */
> pdata[0].uartclk = binfo->bi_busfreq;
> @@ -91,7 +105,7 @@
> pdata[0].membase = ioremap(pdata[0].mapbase, 0x100);
>
> #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
> - memset(&serial_req, 0, sizeof (serial_req));
> + memset(&serial_req, 0, sizeof(serial_req));
> serial_req.iotype = SERIAL_IO_MEM;
> serial_req.mapbase = pdata[0].mapbase;
> serial_req.membase = pdata[0].membase;
> @@ -114,8 +128,7 @@
> }
> #endif
>
> -void
> -mpc83xx_restart(char *cmd)
> +void mpc83xx_restart(char *cmd)
> {
> volatile unsigned char __iomem *reg;
> unsigned char tmp;
> @@ -129,7 +142,7 @@
> * Otherwise the reset asserts but doesn't clear.
> */
> tmp = in_8(reg + BCSR_MISC_REG3_OFF);
> - tmp |= BCSR_MISC_REG3_CNFLOCK; /* low true, high false */
> + tmp |= BCSR_MISC_REG3_CNFLOCK; /* low true, high false */
> out_8(reg + BCSR_MISC_REG3_OFF, tmp);
>
> /*
> @@ -145,21 +158,252 @@
> tmp |= BCSR_MISC_REG2_PORESET;
> out_8(reg + BCSR_MISC_REG2_OFF, tmp);
>
> - for(;;);
> + for (;;) ;
> }
>
> -void
> -mpc83xx_power_off(void)
> +void mpc83xx_power_off(void)
> {
> local_irq_disable();
> - for(;;);
> + for (;;) ;
> }
>
> -void
> -mpc83xx_halt(void)
> +void mpc83xx_halt(void)
> {
> local_irq_disable();
> - for(;;);
> + for (;;) ;
> +}
> +
> +#if defined(CONFIG_PCI)
> +void __init mpc83xx_setup_pci1(struct pci_controller *hose)
> +{
> + unsigned short reg16;
> + volatile immr_pcictrl_t *pci_ctrl;
> + volatile immr_ios_t *ios;
> + bd_t *binfo = (bd_t *) __res;
> +
> + pci_ctrl = ioremap(binfo->bi_immr_base + 0x8500,
> + sizeof(immr_pcictrl_t));
> + ios = ioremap(binfo->bi_immr_base + 0x8400, sizeof(immr_ios_t));
> +
> + /*
> + * Configure PCI Outbound Translation Windows
> + */
> + ios->potar0 = (MPC83xx_PCI1_LOWER_MEM >> 12) & POTAR_TA_MASK;
> + ios->pobar0 = (MPC83xx_PCI1_LOWER_MEM >> 12) & POBAR_BA_MASK;
> + ios->pocmr0 = POCMR_EN |
> + (((~0UL -
> + (MPC83xx_PCI1_UPPER_MEM -
> + MPC83xx_PCI1_LOWER_MEM)) >> 12) & POCMR_CM_MASK);
> +
> + /* mapped to PCI1 IO space 0x0 to local 0xe2000000 */
> + ios->potar1 = (MPC83xx_PCI1_LOWER_IO >> 12) & POTAR_TA_MASK;
> + ios->pobar1 = (MPC83xx_PCI1_IO_BASE >> 12) & POBAR_BA_MASK;
> + ios->pocmr1 = POCMR_EN | POCMR_IO |
> + (((~0UL -
> + (MPC83xx_PCI1_UPPER_IO -
> + MPC83xx_PCI1_LOWER_IO)) >> 12) & POCMR_CM_MASK);
> +
> + /*
> + * Configure PCI Inbound Translation Windows
> + */
> + pci_ctrl->pitar1 = 0x0;
> + pci_ctrl->pibar1 = 0x0;
> + pci_ctrl->piebar1 = 0x0;
> + pci_ctrl->piwar1 =
> + PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP |
> + PIWAR_IWS_2G;
> +
> + /*
> + * Release PCI RST signal
> + */
> + pci_ctrl->gcr = 0;
> + udelay(2000);
> + pci_ctrl->gcr = 1;
> + udelay(2000);
> +
> + reg16 = 0xff;
> + early_read_config_word(hose, hose->first_busno, 0, PCI_COMMAND,
> ®16);
> + reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
> + early_write_config_word(hose, hose->first_busno, 0, PCI_COMMAND,
> reg16);
> +
> + /*
> + * Clear non-reserved bits in status register.
> + */
> + early_write_config_word(hose, hose->first_busno, 0, PCI_STATUS,
> 0xffff);
> + early_write_config_byte(hose, hose->first_busno, 0,
> PCI_LATENCY_TIMER,
> + 0x80);
> }
>
> -/* PCI SUPPORT DOES NOT EXIT, MODEL after ppc85xx_setup.c */
> +void __init mpc834x_ads_setup_pci2(struct pci_controller *hose)
> +{
> + unsigned short reg16;
> + volatile immr_pcictrl_t *pci_ctrl;
> + volatile immr_ios_t *ios;
> + bd_t *binfo = (bd_t *) __res;
> +
> + pci_ctrl = ioremap(binfo->bi_immr_base + 0x8600,
> + sizeof(immr_pcictrl_t));
> + ios = ioremap(binfo->bi_immr_base + 0x8400, sizeof(immr_ios_t));
> +
> + /*
> + * Configure PCI Outbound Translation Windows
> + */
> + ios->potar3 = (MPC83xx_PCI2_LOWER_MEM >> 12) & POTAR_TA_MASK;
> + ios->pobar3 = (MPC83xx_PCI2_LOWER_MEM >> 12) & POBAR_BA_MASK;
> + ios->pocmr3 = POCMR_EN | POCMR_DST |
> + (((~0UL -
> + (MPC83xx_PCI2_UPPER_MEM -
> + MPC83xx_PCI2_LOWER_MEM)) >> 12) & POCMR_CM_MASK);
> +
> + /* mapped to PCI2 IO space 0x0 to local 0xe3000000 */
> + ios->potar4 = (MPC83xx_PCI2_LOWER_IO >> 12) & POTAR_TA_MASK;
> + ios->pobar4 = (MPC83xx_PCI2_IO_BASE >> 12) & POBAR_BA_MASK;
> + ios->pocmr4 = POCMR_EN | POCMR_DST | POCMR_IO |
> + (((~0UL -
> + (MPC83xx_PCI2_UPPER_IO -
> + MPC83xx_PCI2_LOWER_IO)) >> 12) & POCMR_CM_MASK);
> +
> + /*
> + * Configure PCI Inbound Translation Windows
> + */
> + pci_ctrl->pitar1 = 0x0;
> + pci_ctrl->pibar1 = 0x0;
> + pci_ctrl->piebar1 = 0x0;
> + pci_ctrl->piwar1 =
> + PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP |
> + PIWAR_IWS_2G;
> +
> + /*
> + * Release PCI RST signal
> + */
> + pci_ctrl->gcr = 0;
> + udelay(2000);
> + pci_ctrl->gcr = 1;
> + udelay(2000);
> +
> + reg16 = 0xff;
> + early_read_config_word(hose, hose->first_busno, 0, PCI_COMMAND,
> ®16);
> + reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
> + early_write_config_word(hose, hose->first_busno, 0, PCI_COMMAND,
> reg16);
> +
> + /*
> + * Clear non-reserved bits in status register.
> + */
> + early_write_config_word(hose, hose->first_busno, 0, PCI_STATUS,
> 0xffff);
> + early_write_config_byte(hose, hose->first_busno, 0,
> PCI_LATENCY_TIMER,
> + 0x80);
> +}
> +
> +extern int mpc83xx_ads_map_irq(struct pci_dev *dev, unsigned char
> idsel,
> + unsigned char pin);
> +extern int mpc83xx_ads_exclude_device(u_char bus, u_char devfn);
> +
> +/*
> + * PCI buses can be enabled only if SYS board combinates with
> PIB(Platform IO Board) board
> + * which provide 3 PCI slots. There is 2 PCI buses and 3 PCI slots,so
> people must configure
> + * the routes between them before enable PCI bus. This routes are
> under
> the control of PCA9555PW
> + * device which can be accessed via I2C bus 2 and are configured by
> firmware. Refer to Freescale to
> + * get more information about firmware configuration.
> + */
> +void __init mpc83xx_setup_hose(void)
> +{
> + unsigned long val32;
> + volatile immr_clk_t *clk;
> + volatile struct pci_controller *hose1;
> +#ifdef CONFIG_MPC834x_PCI2
> + volatile struct pci_controller *hose2;
> +#endif
> + volatile bd_t *binfo = (bd_t *) __res;
> +
> + clk = ioremap(binfo->bi_immr_base + 0xA00, sizeof(immr_clk_t));
> +
> + /*
> + * Configure PCI controller and PCI_CLK_OUTPUT both in 66M mode
> + */
> + val32 = clk->occr;
> + udelay(2000);
> + clk->occr = 0xff000000;
> + udelay(2000);
> +
> + hose1 = pcibios_alloc_controller();
> + if (!hose1)
> + return;
> +
> + ppc_md.pci_swizzle = common_swizzle;
> + ppc_md.pci_map_irq = mpc83xx_ads_map_irq;
> +
> + hose1->bus_offset = 0;
> + hose1->first_busno = 0;
> + hose1->last_busno = 0xff;
> +
> + setup_indirect_pci(hose1, binfo->bi_immr_base +
> PCI1_CFG_ADDR_OFFSET,
> + binfo->bi_immr_base + PCI1_CFG_DATA_OFFSET);
> + hose1->set_cfg_type = 1;
> +
> + mpc83xx_setup_pci1(hose1);
> +
> + hose1->pci_mem_offset = MPC83xx_PCI1_MEM_OFFSET;
> + hose1->mem_space.start = MPC83xx_PCI1_LOWER_MEM;
> + hose1->mem_space.end = MPC83xx_PCI1_UPPER_MEM;
> +
> + hose1->io_base_phys = MPC83xx_PCI1_IO_BASE;
> + hose1->io_space.start = MPC83xx_PCI1_LOWER_IO;
> + hose1->io_space.end = MPC83xx_PCI1_UPPER_IO;
> +#ifdef CONFIG_MPC834x_PCI2
> + isa_io_base = (unsigned long)ioremap(MPC83xx_PCI1_IO_BASE,
> + MPC83xx_PCI1_IO_SIZE +
> + MPC83xx_PCI2_IO_SIZE);
> +#else
> + isa_io_base = (unsigned long)ioremap(MPC83xx_PCI1_IO_BASE,
> + MPC83xx_PCI1_IO_SIZE);
> +#endif /* CONFIG_MPC834x_PCI2 */
> + hose1->io_base_virt = (void *)isa_io_base;
> + /* setup resources */
> + pci_init_resource(&hose1->io_resource,
> + MPC83xx_PCI1_LOWER_IO,
> + MPC83xx_PCI1_UPPER_IO,
> + IORESOURCE_IO, "PCI host bridge 1");
> + pci_init_resource(&hose1->mem_resources[0],
> + MPC83xx_PCI1_LOWER_MEM,
> + MPC83xx_PCI1_UPPER_MEM,
> + IORESOURCE_MEM, "PCI host bridge 1");
> +
> + ppc_md.pci_exclude_device = mpc83xx_ads_exclude_device;
> + hose1->last_busno = pciauto_bus_scan(hose1, hose1->first_busno);
> +
> +#ifdef CONFIG_MPC834x_PCI2
> + hose2 = pcibios_alloc_controller();
> + if (!hose2)
> + return;
> +
> + hose2->bus_offset = hose1->last_busno + 1;
> + hose2->first_busno = hose1->last_busno + 1;
> + hose2->last_busno = 0xff;
> + setup_indirect_pci(hose2, binfo->bi_immr_base +
> PCI2_CFG_ADDR_OFFSET,
> + binfo->bi_immr_base + PCI2_CFG_DATA_OFFSET);
> + hose2->set_cfg_type = 1;
> +
> + mpc834x_ads_setup_pci2(hose2);
> +
> + hose2->pci_mem_offset = MPC83xx_PCI2_MEM_OFFSET;
> + hose2->mem_space.start = MPC83xx_PCI2_LOWER_MEM;
> + hose2->mem_space.end = MPC83xx_PCI2_UPPER_MEM;
> +
> + hose2->io_base_phys = MPC83xx_PCI2_IO_BASE;
> + hose2->io_space.start = MPC83xx_PCI2_LOWER_IO;
> + hose2->io_space.end = MPC83xx_PCI2_UPPER_IO;
> + hose2->io_base_virt = (void *)(isa_io_base + MPC83xx_PCI1_IO_SIZE);
> + /* setup resources */
> + pci_init_resource(&hose2->io_resource,
> + MPC83xx_PCI2_LOWER_IO,
> + MPC83xx_PCI2_UPPER_IO,
> + IORESOURCE_IO, "PCI host bridge 2");
> + pci_init_resource(&hose2->mem_resources[0],
> + MPC83xx_PCI2_LOWER_MEM,
> + MPC83xx_PCI2_UPPER_MEM,
> + IORESOURCE_MEM, "PCI host bridge 2");
> +
> + hose2->last_busno = pciauto_bus_scan(hose2, hose2->first_busno);
> +#endif /* CONFIG_MPC834x_PCI2 */
> +}
> +#endif /*CONFIG_PCI */
> diff -urN -X dontdiff linux-2.6.13-rc6/arch/ppc/syslib/ppc83xx_setup.h
> linux-2.6.13-rc6-pci/arch/ppc/syslib/ppc83xx_setup.h
> --- linux-2.6.13-rc6/arch/ppc/syslib/ppc83xx_setup.h 2005-06-18
> 03:48:29.000000000 +0800
> +++ linux-2.6.13-rc6-pci/arch/ppc/syslib/ppc83xx_setup.h 2005-08-23
> 10:25:43.000000000 +0800
> @@ -12,6 +12,14 @@
> * Free Software Foundation; either version 2 of the License, or
> (at
> your
> * option) any later version.
> *
> + * This program is distributed in the hope that it will be useful,
> but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> along
> + * with this program; if not, write to the Free Software Foundation,
> Inc.,
> + * 675 Mass Ave, Cambridge, MA 02139, USA.
> */
>
> #ifndef __PPC_SYSLIB_PPC83XX_SETUP_H
> @@ -20,6 +28,7 @@
> #include <linux/config.h>
> #include <linux/init.h>
> #include <asm/ppcboot.h>
> +#include <asm/mpc83xx.h>
>
> extern unsigned long mpc83xx_find_end_of_memory(void) __init;
> extern long mpc83xx_time_init(void) __init;
> @@ -30,15 +39,6 @@
> extern void mpc83xx_halt(void);
> extern void mpc83xx_setup_hose(void) __init;
>
> -/* PCI config */
> -#if 0
> -#define PCI1_CFG_ADDR_OFFSET (FIXME)
> -#define PCI1_CFG_DATA_OFFSET (FIXME)
> -
> -#define PCI2_CFG_ADDR_OFFSET (FIXME)
> -#define PCI2_CFG_DATA_OFFSET (FIXME)
> -#endif
> -
> /* Serial Config */
> #ifdef CONFIG_SERIAL_MANY_PORTS
> #define RS_TABLE_SIZE 64
> @@ -50,4 +50,4 @@
> #define BASE_BAUD 115200
> #endif
>
> -#endif /* __PPC_SYSLIB_PPC83XX_SETUP_H */
> +#endif /* __PPC_SYSLIB_PPC83XX_SETUP_H */
>
^ permalink raw reply [flat|nested] 10+ messages in thread
* RE: [PATCH] ppc32 :Added PCI support for MPC83xx
@ 2005-08-30 8:42 Li Tony-r64360
0 siblings, 0 replies; 10+ messages in thread
From: Li Tony-r64360 @ 2005-08-30 8:42 UTC (permalink / raw)
To: Gala Kumar K.-galak; +Cc: Chu hanjin-r52514, linux-kernel, linuxppc-embedded
Yes, you are right. I missed this. I will send a new patch with this corrected.
Tony Li
-----Original Message-----
From: Gala Kumar K.-galak
Sent: Tuesday, August 30, 2005 12:28 PM
To: Li Tony-r64360
Cc: linuxppc-embedded; linux-kernel@vger.kernel.org; Chu hanjin-r52514
Subject: Re: [PATCH] ppc32 :Added PCI support for MPC83xx
Hmm, well the PCI spec seems to be clear on the fact that PCI interrupts should be level sensitive.
- kumar
On Aug 29, 2005, at 10:02 PM, Li Tony-r64360 wrote:
> I think it is OK. The external interrupt can be edged. And it works
> well in my board.
>
> Tony Li
>
> -----Original Message-----
> From: Gala Kumar K.-galak
> Sent: Tuesday, August 30, 2005 1:43 AM
> To: Li Tony-r64360
> Cc: linuxppc-embedded; linux-kernel@vger.kernel.org; Gala Kumar
> K.-galak; Chu hanjin-r52514
> Subject: Re: [PATCH] ppc32 :Added PCI support for MPC83xx
>
> I noticed that you aren't updating the senses array in
> mpc834x_sys_init_IRQ for the PCI interrupt lines, is this correct?
> Should they not be IRQ_SENSE_LEVEL?
>
> Also, I've done a bit of cosmetic cleanup to the patch, take a look
> and let me know if it works. Once we close on the IRQ sense issue I
> will send this upstream.
>
> - kumar
>
> ---
>
> diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
> --- a/arch/ppc/Kconfig
> +++ b/arch/ppc/Kconfig
> @@ -713,6 +713,12 @@ config MPC834x_SYS
> help
> This option enables support for the MPC 834x SYS evaluation
> board.
>
> + Be aware that PCI buses can only function when SYS board is
> plugged on
> + PIB (Platform IO Board) board from Freescale which provide 3
> PCI slots.
> + Just like PC,the board level initalization is bootloader`s
> responsiblilty.
> + The PCI deponds on bootloader configurate board corretly.
> Refer to Freescale
> + to get more information about this.
> +
> endchoice
>
> config PQ2ADS
> @@ -1193,6 +1199,11 @@ config PCI
> config PCI_DOMAINS
> bool
> default PCI
> +
> +config MPC83xx_PCI2
> + bool " Supprt for 2nd PCI host controller"
> + depends on PCI && MPC834x
> + default y if MPC834x_SYS
>
> config PCI_QSPAN
> bool "QSpan PCI"
> diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.c
> b/arch/ppc/platforms/83xx/mpc834x_sys.c
> --- a/arch/ppc/platforms/83xx/mpc834x_sys.c
> +++ b/arch/ppc/platforms/83xx/mpc834x_sys.c
> @@ -62,9 +62,29 @@ extern unsigned long total_memory; /* in
> unsigned char __res[sizeof (bd_t)];
>
> #ifdef CONFIG_PCI
> -#error "PCI is not supported"
> -/* NEED mpc83xx_map_irq & mpc83xx_exclude_device
> - see platforms/85xx/mpc85xx_ads_common.c */
> +int
> +mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned
> char
>
> +pin) {
> + static char pci_irq_table[][4] =
> + /*
> + * PCI IDSEL/INTPIN->INTLINE
> + * A B C D
> + */
> + {
> + {PIRQA, PIRQB, PIRQC, PIRQD}, /* idsel 0x11 */
> + {PIRQC, PIRQD, PIRQA, PIRQB}, /* idsel 0x12 */
> + {PIRQD, PIRQA, PIRQB, PIRQC} /* idsel 0x13 */
> + };
> +
> + const long min_idsel = 0x11, max_idsel = 0x13, irqs_per_slot =
> 4;
> + return PCI_IRQ_TABLE_LOOKUP;
> +}
> +
> +int
> +mpc83xx_exclude_device(u_char bus, u_char devfn) {
> + return PCIBIOS_SUCCESSFUL;
> +}
> #endif /* CONFIG_PCI */
>
> /*
> **********************************************************************
> **
> @@ -88,7 +108,7 @@ mpc834x_sys_setup_arch(void)
>
> #ifdef CONFIG_PCI
> /* setup PCI host bridges */
> - mpc83xx_sys_setup_hose();
> + mpc83xx_setup_hose();
> #endif
> mpc83xx_early_serial_map();
>
> diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.h
> b/arch/ppc/platforms/83xx/mpc834x_sys.h
> --- a/arch/ppc/platforms/83xx/mpc834x_sys.h
> +++ b/arch/ppc/platforms/83xx/mpc834x_sys.h
> @@ -26,7 +26,7 @@
> #define VIRT_IMMRBAR ((uint)0xfe000000)
>
> #define BCSR_PHYS_ADDR ((uint)0xf8000000)
> -#define BCSR_SIZE ((uint)(32 * 1024))
> +#define BCSR_SIZE ((uint)(128 * 1024))
>
> #define BCSR_MISC_REG2_OFF 0x07
> #define BCSR_MISC_REG2_PORESET 0x01
> @@ -34,23 +34,25 @@
> #define BCSR_MISC_REG3_OFF 0x08
> #define BCSR_MISC_REG3_CNFLOCK 0x80
>
> -#ifdef CONFIG_PCI
> -/* PCI interrupt controller */
> -#define PIRQA MPC83xx_IRQ_IRQ4
> -#define PIRQB MPC83xx_IRQ_IRQ5
> -#define PIRQC MPC83xx_IRQ_IRQ6
> -#define PIRQD MPC83xx_IRQ_IRQ7
> -
> -#define MPC834x_SYS_PCI1_LOWER_IO 0x00000000
> -#define MPC834x_SYS_PCI1_UPPER_IO 0x00ffffff
> -
> -#define MPC834x_SYS_PCI1_LOWER_MEM 0x80000000
> -#define MPC834x_SYS_PCI1_UPPER_MEM 0x9fffffff
> -
> -#define MPC834x_SYS_PCI1_IO_BASE 0xe2000000
> -#define MPC834x_SYS_PCI1_MEM_OFFSET 0x00000000
> -
> -#define MPC834x_SYS_PCI1_IO_SIZE 0x01000000
> -#endif /* CONFIG_PCI */
> +#define PIRQA MPC83xx_IRQ_EXT4
> +#define PIRQB MPC83xx_IRQ_EXT5
> +#define PIRQC MPC83xx_IRQ_EXT6
> +#define PIRQD MPC83xx_IRQ_EXT7
> +
> +#define MPC83xx_PCI1_LOWER_IO 0x00000000
> +#define MPC83xx_PCI1_UPPER_IO 0x00ffffff
> +#define MPC83xx_PCI1_LOWER_MEM 0x80000000
> +#define MPC83xx_PCI1_UPPER_MEM 0x9fffffff
> +#define MPC83xx_PCI1_IO_BASE 0xe2000000
> +#define MPC83xx_PCI1_MEM_OFFSET 0x00000000
> +#define MPC83xx_PCI1_IO_SIZE 0x01000000
> +
> +#define MPC83xx_PCI2_LOWER_IO 0x00000000
> +#define MPC83xx_PCI2_UPPER_IO 0x00ffffff
> +#define MPC83xx_PCI2_LOWER_MEM 0xa0000000
> +#define MPC83xx_PCI2_UPPER_MEM 0xbfffffff
> +#define MPC83xx_PCI2_IO_BASE 0xe3000000
> +#define MPC83xx_PCI2_MEM_OFFSET 0x00000000
> +#define MPC83xx_PCI2_IO_SIZE 0x01000000
>
> #endif /* __MACH_MPC83XX_SYS_H__ */
> diff --git a/arch/ppc/syslib/ppc83xx_pci.h
> b/arch/ppc/syslib/ppc83xx_pci.h new file mode 100644
> --- /dev/null
> +++ b/arch/ppc/syslib/ppc83xx_pci.h
> @@ -0,0 +1,151 @@
> +/* Created by Tony Li <tony.li@freescale.com>
> + * Copyright (c) 2005 freescale semiconductor
> + *
> + * This program is free software; you can redistribute it and/or
> +modify it
> + * under the terms of the GNU General Public License as
> published by
>
> +the
> + * Free Software Foundation; either version 2 of the License, or
> (at
> +your
> + * option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> +along
> + * with this program; if not, write to the Free Software Foundation,
> +Inc.,
> + * 675 Mass Ave, Cambridge, MA 02139, USA.
> + */
> +
> +#ifndef __PPC_SYSLIB_PPC83XX_PCI_H
> +#define __PPC_SYSLIB_PPC83XX_PCI_H
> +
> +typedef struct immr_clk {
> + u32 spmr; /* system PLL mode Register */
> + u32 occr; /* output clock control Register */
> + u32 sccr; /* system clock control Register */
> + u8 res0[0xF4];
> +} immr_clk_t;
> +
> +/*
> + * Sequencer
> + */
> +typedef struct immr_ios {
> + u32 potar0;
> + u8 res0[4];
> + u32 pobar0;
> + u8 res1[4];
> + u32 pocmr0;
> + u8 res2[4];
> + u32 potar1;
> + u8 res3[4];
> + u32 pobar1;
> + u8 res4[4];
> + u32 pocmr1;
> + u8 res5[4];
> + u32 potar2;
> + u8 res6[4];
> + u32 pobar2;
> + u8 res7[4];
> + u32 pocmr2;
> + u8 res8[4];
> + u32 potar3;
> + u8 res9[4];
> + u32 pobar3;
> + u8 res10[4];
> + u32 pocmr3;
> + u8 res11[4];
> + u32 potar4;
> + u8 res12[4];
> + u32 pobar4;
> + u8 res13[4];
> + u32 pocmr4;
> + u8 res14[4];
> + u32 potar5;
> + u8 res15[4];
> + u32 pobar5;
> + u8 res16[4];
> + u32 pocmr5;
> + u8 res17[4];
> + u8 res18[0x60];
> + u32 pmcr;
> + u8 res19[4];
> + u32 dtcr;
> + u8 res20[4];
> +} immr_ios_t;
> +#define POTAR_TA_MASK 0x000fffff
> +#define POBAR_BA_MASK 0x000fffff
> +#define POCMR_EN 0x80000000
> +#define POCMR_IO 0x40000000 /* 0--memory space 1--I/O space */
> +#define POCMR_SE 0x20000000 /* streaming enable */
> +#define POCMR_DST 0x10000000 /* 0--PCI1 1--PCI2 */
> +#define POCMR_CM_MASK 0x000fffff
> +
> +/*
> + * PCI Controller Control and Status Registers */ typedef struct
> +immr_pcictrl {
> + u32 esr;
> + u32 ecdr;
> + u32 eer;
> + u32 eatcr;
> + u32 eacr;
> + u32 eeacr;
> + u32 edlcr;
> + u32 edhcr;
> + u32 gcr;
> + u32 ecr;
> + u32 gsr;
> + u8 res0[12];
> + u32 pitar2;
> + u8 res1[4];
> + u32 pibar2;
> + u32 piebar2;
> + u32 piwar2;
> + u8 res2[4];
> + u32 pitar1;
> + u8 res3[4];
> + u32 pibar1;
> + u32 piebar1;
> + u32 piwar1;
> + u8 res4[4];
> + u32 pitar0;
> + u8 res5[4];
> + u32 pibar0;
> + u8 res6[4];
> + u32 piwar0;
> + u8 res7[132];
> +} immr_pcictrl_t;
> +#define PITAR_TA_MASK 0x000fffff
> +#define PIBAR_MASK 0xffffffff
> +#define PIEBAR_EBA_MASK 0x000fffff
> +#define PIWAR_EN 0x80000000
> +#define PIWAR_PF 0x20000000
> +#define PIWAR_RTT_MASK 0x000f0000
> +#define PIWAR_RTT_NO_SNOOP 0x00040000
> +#define PIWAR_RTT_SNOOP 0x00050000
> +#define PIWAR_WTT_MASK 0x0000f000
> +#define PIWAR_WTT_NO_SNOOP 0x00004000
> +#define PIWAR_WTT_SNOOP 0x00005000
> +#define PIWAR_IWS_MASK 0x0000003F
> +#define PIWAR_IWS_4K 0x0000000B
> +#define PIWAR_IWS_8K 0x0000000C
> +#define PIWAR_IWS_16K 0x0000000D
> +#define PIWAR_IWS_32K 0x0000000E
> +#define PIWAR_IWS_64K 0x0000000F
> +#define PIWAR_IWS_128K 0x00000010
> +#define PIWAR_IWS_256K 0x00000011
> +#define PIWAR_IWS_512K 0x00000012
> +#define PIWAR_IWS_1M 0x00000013
> +#define PIWAR_IWS_2M 0x00000014
> +#define PIWAR_IWS_4M 0x00000015
> +#define PIWAR_IWS_8M 0x00000016
> +#define PIWAR_IWS_16M 0x00000017
> +#define PIWAR_IWS_32M 0x00000018
> +#define PIWAR_IWS_64M 0x00000019
> +#define PIWAR_IWS_128M 0x0000001A
> +#define PIWAR_IWS_256M 0x0000001B
> +#define PIWAR_IWS_512M 0x0000001C
> +#define PIWAR_IWS_1G 0x0000001D
> +#define PIWAR_IWS_2G 0x0000001E
> +
> +#endif /* __PPC_SYSLIB_PPC83XX_PCI_H */
> diff --git a/arch/ppc/syslib/ppc83xx_setup.c
> b/arch/ppc/syslib/ppc83xx_setup.c
> --- a/arch/ppc/syslib/ppc83xx_setup.c
> +++ b/arch/ppc/syslib/ppc83xx_setup.c
> @@ -11,6 +11,17 @@
> * under the terms of the GNU General Public License as
> published by
> the
> * Free Software Foundation; either version 2 of the License, or
> (at
> your
> * option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + along
> + * with this program; if not, write to the Free Software Foundation,
> + Inc.,
> + * 675 Mass Ave, Cambridge, MA 02139, USA.
> + *
> + * Added PCI support -- Tony Li <tony.li@freescale.com>
> */
>
> #include <linux/config.h>
> @@ -31,6 +42,10 @@
> #include <asm/delay.h>
>
> #include <syslib/ppc83xx_setup.h>
> +#if defined(CONFIG_PCI)
> +#include <asm/delay.h>
> +#include <syslib/ppc83xx_pci.h>
> +#endif
>
> phys_addr_t immrbar;
>
> @@ -162,4 +177,237 @@ mpc83xx_halt(void)
> for(;;);
> }
>
> -/* PCI SUPPORT DOES NOT EXIT, MODEL after ppc85xx_setup.c */
> +#if defined(CONFIG_PCI)
> +void __init
> +mpc83xx_setup_pci1(struct pci_controller *hose) {
> + u16 reg16;
> + volatile immr_pcictrl_t * pci_ctrl;
> + volatile immr_ios_t * ios;
> + bd_t *binfo = (bd_t *) __res;
> +
> + pci_ctrl = ioremap(binfo->bi_immr_base + 0x8500,
> sizeof(immr_pcictrl_t));
> + ios = ioremap(binfo->bi_immr_base + 0x8400, sizeof(immr_ios_t));
> +
> + /*
> + * Configure PCI Outbound Translation Windows
> + */
> + ios->potar0 = (MPC83xx_PCI1_LOWER_MEM >> 12) & POTAR_TA_MASK;
> + ios->pobar0 = (MPC83xx_PCI1_LOWER_MEM >> 12) & POBAR_BA_MASK;
> + ios->pocmr0 = POCMR_EN |
> + (((0xffffffff - (MPC83xx_PCI1_UPPER_MEM -
> + MPC83xx_PCI1_LOWER_MEM)) >> 12) &
> POCMR_CM_MASK);
> +
> + /* mapped to PCI1 IO space */
> + ios->potar1 = (MPC83xx_PCI1_LOWER_IO >> 12) & POTAR_TA_MASK;
> + ios->pobar1 = (MPC83xx_PCI1_IO_BASE >> 12) & POBAR_BA_MASK;
> + ios->pocmr1 = POCMR_EN | POCMR_IO |
> + (((0xffffffff - (MPC83xx_PCI1_UPPER_IO -
> + MPC83xx_PCI1_LOWER_IO)) >> 12) &
> POCMR_CM_MASK);
> +
> + /*
> + * Configure PCI Inbound Translation Windows
> + */
> + pci_ctrl->pitar1 = 0x0;
> + pci_ctrl->pibar1 = 0x0;
> + pci_ctrl->piebar1 = 0x0;
> + pci_ctrl->piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP |
> +PIWAR_WTT_SNOOP | PIWAR_IWS_2G;
> +
> + /*
> + * Release PCI RST signal
> + */
> + pci_ctrl->gcr = 0;
> + udelay(2000);
> + pci_ctrl->gcr = 1;
> + udelay(2000);
> +
> + reg16 = 0xff;
> + early_read_config_word(hose, hose->first_busno, 0, PCI_COMMAND,
> ®16);
> + reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER |
> PCI_COMMAND_MEMORY;
> + early_write_config_word(hose, hose->first_busno, 0, PCI_COMMAND,
>
> +reg16);
> +
> + /*
> + * Clear non-reserved bits in status register.
> + */
> + early_write_config_word(hose, hose->first_busno, 0, PCI_STATUS,
> 0xffff);
> + early_write_config_byte(hose, hose->first_busno, 0,
> PCI_LATENCY_TIMER,
> +0x80);
> +
> + iounmap(pci_ctrl);
> + iounmap(ios);
> +}
> +
> +void __init
> +mpc83xx_setup_pci2(struct pci_controller *hose) {
> + u16 reg16;
> + volatile immr_pcictrl_t * pci_ctrl;
> + volatile immr_ios_t * ios;
> + bd_t *binfo = (bd_t *) __res;
> +
> + pci_ctrl = ioremap(binfo->bi_immr_base + 0x8600,
> sizeof(immr_pcictrl_t));
> + ios = ioremap(binfo->bi_immr_base + 0x8400, sizeof(immr_ios_t));
> +
> + /*
> + * Configure PCI Outbound Translation Windows
> + */
> + ios->potar3 = (MPC83xx_PCI2_LOWER_MEM >> 12) & POTAR_TA_MASK;
> + ios->pobar3 = (MPC83xx_PCI2_LOWER_MEM >> 12) & POBAR_BA_MASK;
> + ios->pocmr3 = POCMR_EN | POCMR_DST |
> + (((0xffffffff - (MPC83xx_PCI2_UPPER_MEM -
> + MPC83xx_PCI2_LOWER_MEM)) >> 12) &
> POCMR_CM_MASK);
> +
> + /* mapped to PCI2 IO space */
> + ios->potar4 = (MPC83xx_PCI2_LOWER_IO >> 12) & POTAR_TA_MASK;
> + ios->pobar4 = (MPC83xx_PCI2_IO_BASE >> 12) & POBAR_BA_MASK;
> + ios->pocmr4 = POCMR_EN | POCMR_DST | POCMR_IO |
> + (((0xffffffff - (MPC83xx_PCI2_UPPER_IO -
> + MPC83xx_PCI2_LOWER_IO)) >> 12) &
> POCMR_CM_MASK);
> +
> + /*
> + * Configure PCI Inbound Translation Windows
> + */
> + pci_ctrl->pitar1 = 0x0;
> + pci_ctrl->pibar1 = 0x0;
> + pci_ctrl->piebar1 = 0x0;
> + pci_ctrl->piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP |
> +PIWAR_WTT_SNOOP | PIWAR_IWS_2G;
> +
> + /*
> + * Release PCI RST signal
> + */
> + pci_ctrl->gcr = 0;
> + udelay(2000);
> + pci_ctrl->gcr = 1;
> + udelay(2000);
> +
> + reg16 = 0xff;
> + early_read_config_word(hose, hose->first_busno, 0, PCI_COMMAND,
> ®16);
> + reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER |
> PCI_COMMAND_MEMORY;
> + early_write_config_word(hose, hose->first_busno, 0, PCI_COMMAND,
>
> +reg16);
> +
> + /*
> + * Clear non-reserved bits in status register.
> + */
> + early_write_config_word(hose, hose->first_busno, 0, PCI_STATUS,
> 0xffff);
> + early_write_config_byte(hose, hose->first_busno, 0,
> PCI_LATENCY_TIMER,
> +0x80);
> +
> + iounmap(pci_ctrl);
> + iounmap(ios);
> +}
> +
> +/*
> + * PCI buses can be enabled only if SYS board combinates with PIB
> + * (Platform IO Board) board which provide 3 PCI slots. There is 2
> PCI
> +buses
> + * and 3 PCI slots, so people must configure the routes between them
> +before
> + * enable PCI bus. This routes are under the control of PCA9555PW
> +device which
> + * can be accessed via I2C bus 2 and are configured by firmware.
> Refer
> +to
> + * Freescale to get more information about firmware configuration.
> + */
> +
> +extern int mpc83xx_exclude_device(u_char bus, u_char devfn);
> extern int
>
> +mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel,
> + unsigned char pin);
> +void __init
> +mpc83xx_setup_hose(void)
> +{
> + u32 val32;
> + volatile immr_clk_t * clk;
> + struct pci_controller * hose1;
> +#ifdef CONFIG_MPC83xx_PCI2
> + struct pci_controller * hose2;
> +#endif
> + bd_t * binfo = (bd_t *)__res;
> +
> + clk = ioremap(binfo->bi_immr_base + 0xA00,
> + sizeof(immr_clk_t));
> +
> + /*
> + * Configure PCI controller and PCI_CLK_OUTPUT both in 66M mode
> + */
> + val32 = clk->occr;
> + udelay(2000);
> + clk->occr = 0xff000000;
> + udelay(2000);
> +
> + iounmap(clk);
> +
> + hose1 = pcibios_alloc_controller();
> + if(!hose1)
> + return;
> +
> + ppc_md.pci_swizzle = common_swizzle;
> + ppc_md.pci_map_irq = mpc83xx_map_irq;
> +
> + hose1->bus_offset = 0;
> + hose1->first_busno = 0;
> + hose1->last_busno = 0xff;
> +
> + setup_indirect_pci(hose1, binfo->bi_immr_base +
> PCI1_CFG_ADDR_OFFSET,
> + binfo->bi_immr_base + PCI1_CFG_DATA_OFFSET);
> + hose1->set_cfg_type = 1;
> +
> + mpc83xx_setup_pci1(hose1);
> +
> + hose1->pci_mem_offset = MPC83xx_PCI1_MEM_OFFSET;
> + hose1->mem_space.start = MPC83xx_PCI1_LOWER_MEM;
> + hose1->mem_space.end = MPC83xx_PCI1_UPPER_MEM;
> +
> + hose1->io_base_phys = MPC83xx_PCI1_IO_BASE;
> + hose1->io_space.start = MPC83xx_PCI1_LOWER_IO;
> + hose1->io_space.end = MPC83xx_PCI1_UPPER_IO; #ifdef
> +CONFIG_MPC83xx_PCI2
> + isa_io_base = (unsigned long)ioremap(MPC83xx_PCI1_IO_BASE,
> + MPC83xx_PCI1_IO_SIZE + MPC83xx_PCI2_IO_SIZE);
> #else
> + isa_io_base = (unsigned long)ioremap(MPC83xx_PCI1_IO_BASE,
> + MPC83xx_PCI1_IO_SIZE);
> +#endif /* CONFIG_MPC83xx_PCI2 */
> + hose1->io_base_virt = (void *)isa_io_base;
> + /* setup resources */
> + pci_init_resource(&hose1->io_resource,
> + MPC83xx_PCI1_LOWER_IO,
> + MPC83xx_PCI1_UPPER_IO,
> + IORESOURCE_IO, "PCI host bridge 1");
> + pci_init_resource(&hose1->mem_resources[0],
> + MPC83xx_PCI1_LOWER_MEM,
> + MPC83xx_PCI1_UPPER_MEM,
> + IORESOURCE_MEM, "PCI host bridge 1");
> +
> + ppc_md.pci_exclude_device = mpc83xx_exclude_device;
> + hose1->last_busno = pciauto_bus_scan(hose1, hose1->first_busno);
> +
> +#ifdef CONFIG_MPC83xx_PCI2
> + hose2 = pcibios_alloc_controller();
> + if(!hose2)
> + return;
> +
> + hose2->bus_offset = hose1->last_busno + 1;
> + hose2->first_busno = hose1->last_busno + 1;
> + hose2->last_busno = 0xff;
> + setup_indirect_pci(hose2, binfo->bi_immr_base +
> PCI2_CFG_ADDR_OFFSET,
> + binfo->bi_immr_base + PCI2_CFG_DATA_OFFSET);
> + hose2->set_cfg_type = 1;
> +
> + mpc83xx_setup_pci2(hose2);
> +
> + hose2->pci_mem_offset = MPC83xx_PCI2_MEM_OFFSET;
> + hose2->mem_space.start = MPC83xx_PCI2_LOWER_MEM;
> + hose2->mem_space.end = MPC83xx_PCI2_UPPER_MEM;
> +
> + hose2->io_base_phys = MPC83xx_PCI2_IO_BASE;
> + hose2->io_space.start = MPC83xx_PCI2_LOWER_IO;
> + hose2->io_space.end = MPC83xx_PCI2_UPPER_IO;
> + hose2->io_base_virt = (void *)(isa_io_base +
> MPC83xx_PCI1_IO_SIZE);
> + /* setup resources */
> + pci_init_resource(&hose2->io_resource,
> + MPC83xx_PCI2_LOWER_IO,
> + MPC83xx_PCI2_UPPER_IO,
> + IORESOURCE_IO, "PCI host bridge 2");
> + pci_init_resource(&hose2->mem_resources[0],
> + MPC83xx_PCI2_LOWER_MEM,
> + MPC83xx_PCI2_UPPER_MEM,
> + IORESOURCE_MEM, "PCI host bridge 2");
> +
> + hose2->last_busno = pciauto_bus_scan(hose2, hose2->first_busno);
>
> +#endif /* CONFIG_MPC83xx_PCI2 */ } #endif /*CONFIG_PCI*/
> diff --git a/arch/ppc/syslib/ppc83xx_setup.h
> b/arch/ppc/syslib/ppc83xx_setup.h
> --- a/arch/ppc/syslib/ppc83xx_setup.h
> +++ b/arch/ppc/syslib/ppc83xx_setup.h
> @@ -12,6 +12,14 @@
> * Free Software Foundation; either version 2 of the License, or
> (at
> your
> * option) any later version.
> *
> + * This program is distributed in the hope that it will be useful,
> but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + along
> + * with this program; if not, write to the Free Software Foundation,
> + Inc.,
> + * 675 Mass Ave, Cambridge, MA 02139, USA.
> */
>
> #ifndef __PPC_SYSLIB_PPC83XX_SETUP_H
> @@ -19,7 +27,6 @@
>
> #include <linux/config.h>
> #include <linux/init.h>
> -#include <asm/ppcboot.h>
>
> extern unsigned long mpc83xx_find_end_of_memory(void) __init; extern
> long mpc83xx_time_init(void) __init; @@ -31,13 +38,11 @@ extern void
> mpc83xx_halt(void); extern void mpc83xx_setup_hose(void) __init;
>
> /* PCI config */
> -#if 0
> -#define PCI1_CFG_ADDR_OFFSET (FIXME)
> -#define PCI1_CFG_DATA_OFFSET (FIXME)
> +#define PCI1_CFG_ADDR_OFFSET (0x8300)
> +#define PCI1_CFG_DATA_OFFSET (0x8304)
>
> -#define PCI2_CFG_ADDR_OFFSET (FIXME)
> -#define PCI2_CFG_DATA_OFFSET (FIXME)
> -#endif
> +#define PCI2_CFG_ADDR_OFFSET (0x8380)
> +#define PCI2_CFG_DATA_OFFSET (0x8384)
>
> /* Serial Config */
> #ifdef CONFIG_SERIAL_MANY_PORTS
>
^ permalink raw reply [flat|nested] 10+ messages in thread* [PATCH] ppc32 :Added PCI support for MPC83xx
@ 2005-08-29 9:03 Li Tony-r64360
2005-08-29 17:42 ` Kumar Gala
0 siblings, 1 reply; 10+ messages in thread
From: Li Tony-r64360 @ 2005-08-29 9:03 UTC (permalink / raw)
To: linuxppc-embedded; +Cc: Li Tony-r64360, linux-kernel, Chu hanjin-r52514
[-- Attachment #1: Type: text/plain, Size: 19793 bytes --]
MPC83xx cpu has two PCI buses. This patch adds support for them.
After system boot. The code initializes PCI inbound/outbound
windows, allocate and register PCI memory/io space. Be aware
that this patch depand on the firmware.
Signed-off-by: Tony Li <tony.li@freescale.com <mailto:tony.li@freescale.com> >
---
author Tony Li <tony.li@freescale.com <mailto:tony.li@freescale.com> > Mon, 29 Aug 2005
committer Tony Li <tony.li@freescale.com <mailto:tony.li@freescale.com> > Mon, 29 Aug 2005
diff -urN -X dontdiff linux-2.6.13-rc6/arch/ppc/Kconfig linux-2.6.13-rc6-pci/arch/ppc/Kconfig
--- linux-2.6.13-rc6/arch/ppc/Kconfig 2005-08-09 18:00:47.000000000 +0800
+++ linux-2.6.13-rc6-pci/arch/ppc/Kconfig 2005-08-19 18:17:27.000000000 +0800
@@ -712,6 +712,11 @@
bool "Freescale MPC834x SYS"
help
This option enables support for the MPC 834x SYS evaluation board.
+ Be aware that PCI buses can only function when SYS board is plugged on
+ PIB (Platform IO Board) board from Freescale which provide 3 PCI slots.
+ Just like PC,the board level initalization is bootloader`s responsiblilty.
+ The PCI deponds on bootloader configurate board corretly. Refer to Freescale
+ to get more information about this.
endchoice
@@ -1191,6 +1196,10 @@
bool
default PCI
+config MPC834x_PCI2
+ bool
+ default y if PCI && MPC834x_SYS
+
config PCI_QSPAN
bool "QSpan PCI"
depends on !4xx && !CPM2 && 8xx
diff -urN -X dontdiff linux-2.6.13-rc6/arch/ppc/platforms/83xx/mpc834x_sys.c linux-2.6.13-rc6-pci/arch/ppc/platforms/83xx/mpc834x_sys.c
--- linux-2.6.13-rc6/arch/ppc/platforms/83xx/mpc834x_sys.c 2005-08-09 18:00:47.000000000 +0800
+++ linux-2.6.13-rc6-pci/arch/ppc/platforms/83xx/mpc834x_sys.c 2005-08-18 13:22:59.000000000 +0800
@@ -62,9 +62,28 @@
unsigned char __res[sizeof (bd_t)];
#ifdef CONFIG_PCI
-#error "PCI is not supported"
-/* NEED mpc83xx_map_irq & mpc83xx_exclude_device
- see platforms/85xx/mpc85xx_ads_common.c */
+int
+mpc83xx_ads_map_irq(struct pci_dev *dev,unsigned char idsel,unsigned char pin)
+{
+ char pci_irq_table[][4]=
+ /*
+ * PCI IDSEL&INTPIN -> INTLINE
+ * INTA INTB INTC INTD
+ */
+ {
+ {PIRQA, PIRQB, PIRQC, PIRQD}, /* idsel 0x11 */
+ {PIRQC, PIRQD, PIRQA, PIRQB}, /* idsel 0x12 */
+ {PIRQD, PIRQA, PIRQB, PIRQC} /* idsel 0x13 */
+ };
+ /* MPC8349 MDS board specific */
+ const long min_idsel=0x11,max_idsel=0x13,irqs_per_slot=4;
+ return PCI_IRQ_TABLE_LOOKUP;
+}
+int
+mpc83xx_ads_exclude_device(u_char bus, u_char devfn)
+{
+ return PCIBIOS_SUCCESSFUL;
+}
#endif /* CONFIG_PCI */
/* ************************************************************************
@@ -88,7 +107,7 @@
#ifdef CONFIG_PCI
/* setup PCI host bridges */
- mpc83xx_sys_setup_hose();
+ mpc83xx_setup_hose();
#endif
mpc83xx_early_serial_map();
diff -urN -X dontdiff linux-2.6.13-rc6/arch/ppc/platforms/83xx/mpc834x_sys.h linux-2.6.13-rc6-pci/arch/ppc/platforms/83xx/mpc834x_sys.h
--- linux-2.6.13-rc6/arch/ppc/platforms/83xx/mpc834x_sys.h 2005-06-18 03:48:29.000000000 +0800
+++ linux-2.6.13-rc6-pci/arch/ppc/platforms/83xx/mpc834x_sys.h 2005-08-23 10:00:08.000000000 +0800
@@ -26,7 +26,7 @@
#define VIRT_IMMRBAR ((uint)0xfe000000)
#define BCSR_PHYS_ADDR ((uint)0xf8000000)
-#define BCSR_SIZE ((uint)(32 * 1024))
+#define BCSR_SIZE ((uint)(128 * 1024))
#define BCSR_MISC_REG2_OFF 0x07
#define BCSR_MISC_REG2_PORESET 0x01
@@ -35,22 +35,34 @@
#define BCSR_MISC_REG3_CNFLOCK 0x80
#ifdef CONFIG_PCI
-/* PCI interrupt controller */
-#define PIRQA MPC83xx_IRQ_IRQ4
-#define PIRQB MPC83xx_IRQ_IRQ5
-#define PIRQC MPC83xx_IRQ_IRQ6
-#define PIRQD MPC83xx_IRQ_IRQ7
-
-#define MPC834x_SYS_PCI1_LOWER_IO 0x00000000
-#define MPC834x_SYS_PCI1_UPPER_IO 0x00ffffff
-#define MPC834x_SYS_PCI1_LOWER_MEM 0x80000000
-#define MPC834x_SYS_PCI1_UPPER_MEM 0x9fffffff
+#define PCI1_CFG_ADDR_OFFSET (0x8300)
+#define PCI1_CFG_DATA_OFFSET (0x8304)
-#define MPC834x_SYS_PCI1_IO_BASE 0xe2000000
-#define MPC834x_SYS_PCI1_MEM_OFFSET 0x00000000
+#define PCI2_CFG_ADDR_OFFSET (0x8380)
+#define PCI2_CFG_DATA_OFFSET (0x8384)
+
+#define PIRQA MPC83xx_IRQ_EXT4
+#define PIRQB MPC83xx_IRQ_EXT5
+#define PIRQC MPC83xx_IRQ_EXT6
+#define PIRQD MPC83xx_IRQ_EXT7
+
+#define MPC83xx_PCI1_LOWER_IO 0x00000000
+#define MPC83xx_PCI1_UPPER_IO 0x00ffffff
+#define MPC83xx_PCI1_LOWER_MEM 0x80000000
+#define MPC83xx_PCI1_UPPER_MEM 0x9fffffff
+#define MPC83xx_PCI1_IO_BASE 0xe2000000
+#define MPC83xx_PCI1_MEM_OFFSET 0x00000000
+#define MPC83xx_PCI1_IO_SIZE 0x01000000
+
+#define MPC83xx_PCI2_LOWER_IO 0x00000000
+#define MPC83xx_PCI2_UPPER_IO 0x00ffffff
+#define MPC83xx_PCI2_LOWER_MEM 0xa0000000
+#define MPC83xx_PCI2_UPPER_MEM 0xbfffffff
+#define MPC83xx_PCI2_IO_BASE 0xe3000000
+#define MPC83xx_PCI2_MEM_OFFSET 0x00000000
+#define MPC83xx_PCI2_IO_SIZE 0x01000000
-#define MPC834x_SYS_PCI1_IO_SIZE 0x01000000
#endif /* CONFIG_PCI */
#endif /* __MACH_MPC83XX_SYS_H__ */
diff -urN -X dontdiff linux-2.6.13-rc6/arch/ppc/syslib/ppc834x_pci.h linux-2.6.13-rc6-pci/arch/ppc/syslib/ppc834x_pci.h
--- linux-2.6.13-rc6/arch/ppc/syslib/ppc834x_pci.h 1970-01-01 08:30:00.000000000 +0830
+++ linux-2.6.13-rc6-pci/arch/ppc/syslib/ppc834x_pci.h 2005-08-19 18:30:11.000000000 +0800
@@ -0,0 +1,161 @@
+/* Created by Tony Li <tony.li@freescale.com <mailto:tony.li@freescale.com> > 2005.6
+ * Copyright (c) 2005 freescale semiconductor
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __MPC834X_PCI_H__
+#define __MPC834X_PCI_H__
+
+typedef struct immr_clk {
+ u32 spmr; /* system PLL mode Register */
+ u32 occr; /* output clock control Register */
+ u32 sccr; /* system clock control Register */
+ u8 res0[0xF4];
+} immr_clk_t;
+
+/*
+ * PCI Software Configuration Registers
+ */
+typedef struct immr_pciconf {
+ u32 config_address;
+ u32 config_data;
+ u32 int_ack;
+ u8 res[116];
+} immr_pciconf_t;
+
+/*
+ * Sequencer
+ */
+typedef struct immr_ios {
+ u32 potar0;
+ u8 res0[4];
+ u32 pobar0;
+ u8 res1[4];
+ u32 pocmr0;
+ u8 res2[4];
+ u32 potar1;
+ u8 res3[4];
+ u32 pobar1;
+ u8 res4[4];
+ u32 pocmr1;
+ u8 res5[4];
+ u32 potar2;
+ u8 res6[4];
+ u32 pobar2;
+ u8 res7[4];
+ u32 pocmr2;
+ u8 res8[4];
+ u32 potar3;
+ u8 res9[4];
+ u32 pobar3;
+ u8 res10[4];
+ u32 pocmr3;
+ u8 res11[4];
+ u32 potar4;
+ u8 res12[4];
+ u32 pobar4;
+ u8 res13[4];
+ u32 pocmr4;
+ u8 res14[4];
+ u32 potar5;
+ u8 res15[4];
+ u32 pobar5;
+ u8 res16[4];
+ u32 pocmr5;
+ u8 res17[4];
+ u8 res18[0x60];
+ u32 pmcr;
+ u8 res19[4];
+ u32 dtcr;
+ u8 res20[4];
+} immr_ios_t;
+#define POTAR_TA_MASK 0x000fffff
+#define POBAR_BA_MASK 0x000fffff
+#define POCMR_EN 0x80000000
+#define POCMR_IO 0x40000000 /* 0--memory space 1--I/O space */
+#define POCMR_SE 0x20000000 /* streaming enable */
+#define POCMR_DST 0x10000000 /* 0--PCI1 1--PCI2 */
+#define POCMR_CM_MASK 0x000fffff
+
+/*
+ * PCI Controller Control and Status Registers
+ */
+typedef struct immr_pcictrl {
+ u32 esr;
+ u32 ecdr;
+ u32 eer;
+ u32 eatcr;
+ u32 eacr;
+ u32 eeacr;
+ u32 edlcr;
+ u32 edhcr;
+ u32 gcr;
+ u32 ecr;
+ u32 gsr;
+ u8 res0[12];
+ u32 pitar2;
+ u8 res1[4];
+ u32 pibar2;
+ u32 piebar2;
+ u32 piwar2;
+ u8 res2[4];
+ u32 pitar1;
+ u8 res3[4];
+ u32 pibar1;
+ u32 piebar1;
+ u32 piwar1;
+ u8 res4[4];
+ u32 pitar0;
+ u8 res5[4];
+ u32 pibar0;
+ u8 res6[4];
+ u32 piwar0;
+ u8 res7[132];
+} immr_pcictrl_t;
+#define PITAR_TA_MASK 0x000fffff
+#define PIBAR_MASK 0xffffffff
+#define PIEBAR_EBA_MASK 0x000fffff
+#define PIWAR_EN 0x80000000
+#define PIWAR_PF 0x20000000
+#define PIWAR_RTT_MASK 0x000f0000
+#define PIWAR_RTT_NO_SNOOP 0x00040000
+#define PIWAR_RTT_SNOOP 0x00050000
+#define PIWAR_WTT_MASK 0x0000f000
+#define PIWAR_WTT_NO_SNOOP 0x00004000
+#define PIWAR_WTT_SNOOP 0x00005000
+#define PIWAR_IWS_MASK 0x0000003F
+#define PIWAR_IWS_4K 0x0000000B
+#define PIWAR_IWS_8K 0x0000000C
+#define PIWAR_IWS_16K 0x0000000D
+#define PIWAR_IWS_32K 0x0000000E
+#define PIWAR_IWS_64K 0x0000000F
+#define PIWAR_IWS_128K 0x00000010
+#define PIWAR_IWS_256K 0x00000011
+#define PIWAR_IWS_512K 0x00000012
+#define PIWAR_IWS_1M 0x00000013
+#define PIWAR_IWS_2M 0x00000014
+#define PIWAR_IWS_4M 0x00000015
+#define PIWAR_IWS_8M 0x00000016
+#define PIWAR_IWS_16M 0x00000017
+#define PIWAR_IWS_32M 0x00000018
+#define PIWAR_IWS_64M 0x00000019
+#define PIWAR_IWS_128M 0x0000001A
+#define PIWAR_IWS_256M 0x0000001B
+#define PIWAR_IWS_512M 0x0000001C
+#define PIWAR_IWS_1G 0x0000001D
+#define PIWAR_IWS_2G 0x0000001E
+
+#endif /*__MPC834X_PCI_H__*/
diff -urN -X dontdiff linux-2.6.13-rc6/arch/ppc/syslib/ppc83xx_setup.c linux-2.6.13-rc6-pci/arch/ppc/syslib/ppc83xx_setup.c
--- linux-2.6.13-rc6/arch/ppc/syslib/ppc83xx_setup.c 2005-08-09 18:00:47.000000000 +0800
+++ linux-2.6.13-rc6-pci/arch/ppc/syslib/ppc83xx_setup.c 2005-08-23 10:05:03.000000000 +0800
@@ -11,6 +11,20 @@
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * July 2005, Tony Li<tony.li@freescale.com <mailto:tony.li@freescale.com> >
+ * Added PCI support
+ * PCI can be enabled only if MPC834x SYS board combined with PIB(Platform
+ * IO Board) board in which three physical PCI slots locate.
*/
#include <linux/config.h>
@@ -31,6 +45,10 @@
#include <asm/delay.h>
#include <syslib/ppc83xx_setup.h>
+#if defined(CONFIG_PCI)
+#include <asm/delay.h>
+#include <syslib/ppc834x_pci.h>
+#endif
phys_addr_t immrbar;
@@ -162,4 +180,227 @@
for(;;);
}
-/* PCI SUPPORT DOES NOT EXIT, MODEL after ppc85xx_setup.c */
+#if defined(CONFIG_PCI)
+void __init
+mpc83xx_setup_pci1(struct pci_controller *hose)
+{
+ unsigned short reg16;
+ volatile immr_pcictrl_t * pci_ctrl;
+ volatile immr_ios_t * ios;
+ bd_t *binfo = (bd_t *) __res;
+
+ pci_ctrl = ioremap(binfo->bi_immr_base + 0x8500,
+ sizeof(immr_pcictrl_t));
+ ios = ioremap(binfo->bi_immr_base + 0x8400,
+ sizeof(immr_ios_t));
+
+ /*
+ * Configure PCI Outbound Translation Windows
+ */
+ ios->potar0 = (MPC83xx_PCI1_LOWER_MEM >> 12) & POTAR_TA_MASK;
+ ios->pobar0 = (MPC83xx_PCI1_LOWER_MEM >> 12) & POBAR_BA_MASK;
+ ios->pocmr0 = POCMR_EN |
+ (((~0UL - (MPC83xx_PCI1_UPPER_MEM - MPC83xx_PCI1_LOWER_MEM)) >> 12) & POCMR_CM_MASK);
+
+ /* mapped to PCI1 IO space 0x0 to local 0xe2000000 */
+ ios->potar1 = (MPC83xx_PCI1_LOWER_IO >> 12) & POTAR_TA_MASK;
+ ios->pobar1 = (MPC83xx_PCI1_IO_BASE >> 12) & POBAR_BA_MASK;
+ ios->pocmr1 = POCMR_EN | POCMR_IO |
+ (((~0UL - (MPC83xx_PCI1_UPPER_IO - MPC83xx_PCI1_LOWER_IO)) >> 12) & POCMR_CM_MASK);
+
+ /*
+ * Configure PCI Inbound Translation Windows
+ */
+ pci_ctrl->pitar1 = 0x0;
+ pci_ctrl->pibar1 = 0x0;
+ pci_ctrl->piebar1 = 0x0;
+ pci_ctrl->piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP | PIWAR_IWS_2G;
+
+ /*
+ * Release PCI RST signal
+ */
+ pci_ctrl->gcr = 0;
+ udelay(2000);
+ pci_ctrl->gcr = 1;
+ udelay(2000);
+
+ reg16 = 0xff;
+ early_read_config_word (hose,hose->first_busno,0,PCI_COMMAND, ®16);
+ reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
+ early_write_config_word(hose,hose->first_busno,0,PCI_COMMAND, reg16);
+
+ /*
+ * Clear non-reserved bits in status register.
+ */
+ early_write_config_word(hose,hose->first_busno,0,PCI_STATUS, 0xffff);
+ early_write_config_byte(hose,hose->first_busno,0,PCI_LATENCY_TIMER,0x80);
+}
+
+void __init
+mpc834x_ads_setup_pci2(struct pci_controller *hose)
+{
+ unsigned short reg16;
+ volatile immr_pcictrl_t * pci_ctrl;
+ volatile immr_ios_t * ios;
+ bd_t *binfo = (bd_t *) __res;
+
+ pci_ctrl = ioremap(binfo->bi_immr_base + 0x8600,
+ sizeof(immr_pcictrl_t));
+ ios = ioremap(binfo->bi_immr_base + 0x8400,
+ sizeof(immr_ios_t));
+
+ /*
+ * Configure PCI Outbound Translation Windows
+ */
+ ios->potar3 = (MPC83xx_PCI2_LOWER_MEM >> 12) & POTAR_TA_MASK;
+ ios->pobar3 = (MPC83xx_PCI2_LOWER_MEM >> 12) & POBAR_BA_MASK;
+ ios->pocmr3 = POCMR_EN | POCMR_DST |
+ (((~0UL - (MPC83xx_PCI2_UPPER_MEM - MPC83xx_PCI2_LOWER_MEM)) >> 12) & POCMR_CM_MASK);
+
+ /* mapped to PCI2 IO space 0x0 to local 0xe3000000 */
+ ios->potar4 = (MPC83xx_PCI2_LOWER_IO >> 12) & POTAR_TA_MASK;
+ ios->pobar4 = (MPC83xx_PCI2_IO_BASE >> 12) & POBAR_BA_MASK;
+ ios->pocmr4 = POCMR_EN | POCMR_DST | POCMR_IO |
+ (((~0UL - (MPC83xx_PCI2_UPPER_IO - MPC83xx_PCI2_LOWER_IO)) >> 12) & POCMR_CM_MASK);
+
+ /*
+ * Configure PCI Inbound Translation Windows
+ */
+ pci_ctrl->pitar1 = 0x0;
+ pci_ctrl->pibar1 = 0x0;
+ pci_ctrl->piebar1 = 0x0;
+ pci_ctrl->piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP | PIWAR_IWS_2G;
+
+ /*
+ * Release PCI RST signal
+ */
+ pci_ctrl->gcr = 0;
+ udelay(2000);
+ pci_ctrl->gcr = 1;
+ udelay(2000);
+
+ reg16 = 0xff;
+ early_read_config_word (hose,hose->first_busno,0,PCI_COMMAND, ®16);
+ reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
+ early_write_config_word(hose,hose->first_busno,0,PCI_COMMAND, reg16);
+
+ /*
+ * Clear non-reserved bits in status register.
+ */
+ early_write_config_word(hose,hose->first_busno,0,PCI_STATUS, 0xffff);
+ early_write_config_byte(hose,hose->first_busno,0,PCI_LATENCY_TIMER,0x80);
+}
+
+extern int mpc83xx_ads_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin);
+extern int mpc83xx_ads_exclude_device(u_char bus,u_char devfn);
+
+/*
+ * PCI buses can be enabled only if SYS board combinates with PIB(Platform IO Board) board
+ * which provide 3 PCI slots. There is 2 PCI buses and 3 PCI slots,so people must configure
+ * the routes between them before enable PCI bus. This routes are under the control of PCA9555PW
+ * device which can be accessed via I2C bus 2 and are configured by firmware. Refer to Freescale to
+ * get more information about firmware configuration.
+ */
+void __init
+mpc83xx_setup_hose(void)
+{
+ unsigned long val32;
+ volatile immr_clk_t * clk;
+ volatile struct pci_controller * hose1;
+#ifdef CONFIG_MPC834x_PCI2
+ volatile struct pci_controller * hose2;
+#endif
+ volatile bd_t * binfo = (bd_t *)__res;
+
+ clk = ioremap(binfo->bi_immr_base + 0xA00,
+ sizeof(immr_clk_t));
+
+ /*
+ * Configure PCI controller and PCI_CLK_OUTPUT both in 66M mode
+ */
+ val32 = clk->occr;
+ udelay(2000);
+ clk->occr = 0xff000000;
+ udelay(2000);
+
+ hose1 = pcibios_alloc_controller();
+ if(!hose1)
+ return;
+
+ ppc_md.pci_swizzle = common_swizzle;
+ ppc_md.pci_map_irq = mpc83xx_ads_map_irq;
+
+ hose1->bus_offset = 0;
+ hose1->first_busno = 0;
+ hose1->last_busno = 0xff;
+
+ setup_indirect_pci(hose1, binfo->bi_immr_base + PCI1_CFG_ADDR_OFFSET,
+ binfo->bi_immr_base + PCI1_CFG_DATA_OFFSET);
+ hose1->set_cfg_type = 1;
+
+ mpc83xx_setup_pci1(hose1);
+
+ hose1->pci_mem_offset = MPC83xx_PCI1_MEM_OFFSET;
+ hose1->mem_space.start = MPC83xx_PCI1_LOWER_MEM;
+ hose1->mem_space.end = MPC83xx_PCI1_UPPER_MEM;
+
+ hose1->io_base_phys = MPC83xx_PCI1_IO_BASE;
+ hose1->io_space.start = MPC83xx_PCI1_LOWER_IO;
+ hose1->io_space.end = MPC83xx_PCI1_UPPER_IO;
+#ifdef CONFIG_MPC834x_PCI2
+ isa_io_base = (unsigned long)ioremap(MPC83xx_PCI1_IO_BASE,
+ MPC83xx_PCI1_IO_SIZE+MPC83xx_PCI2_IO_SIZE);
+#else
+ isa_io_base = (unsigned long)ioremap(MPC83xx_PCI1_IO_BASE,
+ MPC83xx_PCI1_IO_SIZE);
+#endif /* CONFIG_MPC834x_PCI2 */
+ hose1->io_base_virt = (void *)isa_io_base;
+ /* setup resources */
+ pci_init_resource(&hose1->io_resource,
+ MPC83xx_PCI1_LOWER_IO,
+ MPC83xx_PCI1_UPPER_IO,
+ IORESOURCE_IO,"PCI host bridge 1");
+ pci_init_resource(&hose1->mem_resources[0],
+ MPC83xx_PCI1_LOWER_MEM,
+ MPC83xx_PCI1_UPPER_MEM,
+ IORESOURCE_MEM,"PCI host bridge 1");
+
+ ppc_md.pci_exclude_device = mpc83xx_ads_exclude_device;
+ hose1->last_busno = pciauto_bus_scan(hose1, hose1->first_busno);
+
+#ifdef CONFIG_MPC834x_PCI2
+ hose2 = pcibios_alloc_controller();
+ if(!hose2)
+ return;
+
+ hose2->bus_offset = hose1->last_busno + 1;
+ hose2->first_busno = hose1->last_busno + 1;
+ hose2->last_busno = 0xff;
+ setup_indirect_pci(hose2, binfo->bi_immr_base + PCI2_CFG_ADDR_OFFSET,
+ binfo->bi_immr_base + PCI2_CFG_DATA_OFFSET);
+ hose2->set_cfg_type = 1;
+
+ mpc834x_ads_setup_pci2(hose2);
+
+ hose2->pci_mem_offset = MPC83xx_PCI2_MEM_OFFSET;
+ hose2->mem_space.start = MPC83xx_PCI2_LOWER_MEM;
+ hose2->mem_space.end = MPC83xx_PCI2_UPPER_MEM;
+
+ hose2->io_base_phys = MPC83xx_PCI2_IO_BASE;
+ hose2->io_space.start = MPC83xx_PCI2_LOWER_IO;
+ hose2->io_space.end = MPC83xx_PCI2_UPPER_IO;
+ hose2->io_base_virt = (void *)(isa_io_base + MPC83xx_PCI1_IO_SIZE);
+ /* setup resources */
+ pci_init_resource(&hose2->io_resource,
+ MPC83xx_PCI2_LOWER_IO,
+ MPC83xx_PCI2_UPPER_IO,
+ IORESOURCE_IO,"PCI host bridge 2");
+ pci_init_resource(&hose2->mem_resources[0],
+ MPC83xx_PCI2_LOWER_MEM,
+ MPC83xx_PCI2_UPPER_MEM,
+ IORESOURCE_MEM,"PCI host bridge 2");
+
+ hose2->last_busno = pciauto_bus_scan(hose2, hose2->first_busno);
+#endif /* CONFIG_MPC834x_PCI2 */
+}
+#endif /*CONFIG_PCI*/
diff -urN -X dontdiff linux-2.6.13-rc6/arch/ppc/syslib/ppc83xx_setup.h linux-2.6.13-rc6-pci/arch/ppc/syslib/ppc83xx_setup.h
--- linux-2.6.13-rc6/arch/ppc/syslib/ppc83xx_setup.h 2005-06-18 03:48:29.000000000 +0800
+++ linux-2.6.13-rc6-pci/arch/ppc/syslib/ppc83xx_setup.h 2005-08-23 10:00:54.000000000 +0800
@@ -12,6 +12,14 @@
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __PPC_SYSLIB_PPC83XX_SETUP_H
@@ -20,6 +28,7 @@
#include <linux/config.h>
#include <linux/init.h>
#include <asm/ppcboot.h>
+#include <asm/mpc83xx.h>
extern unsigned long mpc83xx_find_end_of_memory(void) __init;
extern long mpc83xx_time_init(void) __init;
@@ -30,15 +39,6 @@
extern void mpc83xx_halt(void);
extern void mpc83xx_setup_hose(void) __init;
-/* PCI config */
-#if 0
-#define PCI1_CFG_ADDR_OFFSET (FIXME)
-#define PCI1_CFG_DATA_OFFSET (FIXME)
-
-#define PCI2_CFG_ADDR_OFFSET (FIXME)
-#define PCI2_CFG_DATA_OFFSET (FIXME)
-#endif
-
/* Serial Config */
#ifdef CONFIG_SERIAL_MANY_PORTS
#define RS_TABLE_SIZE 64
[-- Attachment #2: Type: text/html, Size: 27818 bytes --]
^ permalink raw reply [flat|nested] 10+ messages in thread* Re: [PATCH] ppc32 :Added PCI support for MPC83xx
2005-08-29 9:03 Li Tony-r64360
@ 2005-08-29 17:42 ` Kumar Gala
2005-08-29 18:07 ` Dan Malek
0 siblings, 1 reply; 10+ messages in thread
From: Kumar Gala @ 2005-08-29 17:42 UTC (permalink / raw)
To: Li Tony-r64360; +Cc: Chu hanjin-r52514, linux-kernel, linuxppc-embedded
I noticed that you aren't updating the senses array in
mpc834x_sys_init_IRQ for the PCI interrupt lines, is this correct?
Should they not be IRQ_SENSE_LEVEL?
Also, I've done a bit of cosmetic cleanup to the patch, take a look and
let me know if it works. Once we close on the IRQ sense issue I will
send this upstream.
- kumar
---
diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -713,6 +713,12 @@ config MPC834x_SYS
help
This option enables support for the MPC 834x SYS evaluation board.
+ Be aware that PCI buses can only function when SYS board is plugged on
+ PIB (Platform IO Board) board from Freescale which provide 3 PCI slots.
+ Just like PC,the board level initalization is bootloader`s responsiblilty.
+ The PCI deponds on bootloader configurate board corretly. Refer to Freescale
+ to get more information about this.
+
endchoice
config PQ2ADS
@@ -1193,6 +1199,11 @@ config PCI
config PCI_DOMAINS
bool
default PCI
+
+config MPC83xx_PCI2
+ bool " Supprt for 2nd PCI host controller"
+ depends on PCI && MPC834x
+ default y if MPC834x_SYS
config PCI_QSPAN
bool "QSpan PCI"
diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.c b/arch/ppc/platforms/83xx/mpc834x_sys.c
--- a/arch/ppc/platforms/83xx/mpc834x_sys.c
+++ b/arch/ppc/platforms/83xx/mpc834x_sys.c
@@ -62,9 +62,29 @@ extern unsigned long total_memory; /* in
unsigned char __res[sizeof (bd_t)];
#ifdef CONFIG_PCI
-#error "PCI is not supported"
-/* NEED mpc83xx_map_irq & mpc83xx_exclude_device
- see platforms/85xx/mpc85xx_ads_common.c */
+int
+mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
+{
+ static char pci_irq_table[][4] =
+ /*
+ * PCI IDSEL/INTPIN->INTLINE
+ * A B C D
+ */
+ {
+ {PIRQA, PIRQB, PIRQC, PIRQD}, /* idsel 0x11 */
+ {PIRQC, PIRQD, PIRQA, PIRQB}, /* idsel 0x12 */
+ {PIRQD, PIRQA, PIRQB, PIRQC} /* idsel 0x13 */
+ };
+
+ const long min_idsel = 0x11, max_idsel = 0x13, irqs_per_slot = 4;
+ return PCI_IRQ_TABLE_LOOKUP;
+}
+
+int
+mpc83xx_exclude_device(u_char bus, u_char devfn)
+{
+ return PCIBIOS_SUCCESSFUL;
+}
#endif /* CONFIG_PCI */
/* ************************************************************************
@@ -88,7 +108,7 @@ mpc834x_sys_setup_arch(void)
#ifdef CONFIG_PCI
/* setup PCI host bridges */
- mpc83xx_sys_setup_hose();
+ mpc83xx_setup_hose();
#endif
mpc83xx_early_serial_map();
diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.h b/arch/ppc/platforms/83xx/mpc834x_sys.h
--- a/arch/ppc/platforms/83xx/mpc834x_sys.h
+++ b/arch/ppc/platforms/83xx/mpc834x_sys.h
@@ -26,7 +26,7 @@
#define VIRT_IMMRBAR ((uint)0xfe000000)
#define BCSR_PHYS_ADDR ((uint)0xf8000000)
-#define BCSR_SIZE ((uint)(32 * 1024))
+#define BCSR_SIZE ((uint)(128 * 1024))
#define BCSR_MISC_REG2_OFF 0x07
#define BCSR_MISC_REG2_PORESET 0x01
@@ -34,23 +34,25 @@
#define BCSR_MISC_REG3_OFF 0x08
#define BCSR_MISC_REG3_CNFLOCK 0x80
-#ifdef CONFIG_PCI
-/* PCI interrupt controller */
-#define PIRQA MPC83xx_IRQ_IRQ4
-#define PIRQB MPC83xx_IRQ_IRQ5
-#define PIRQC MPC83xx_IRQ_IRQ6
-#define PIRQD MPC83xx_IRQ_IRQ7
-
-#define MPC834x_SYS_PCI1_LOWER_IO 0x00000000
-#define MPC834x_SYS_PCI1_UPPER_IO 0x00ffffff
-
-#define MPC834x_SYS_PCI1_LOWER_MEM 0x80000000
-#define MPC834x_SYS_PCI1_UPPER_MEM 0x9fffffff
-
-#define MPC834x_SYS_PCI1_IO_BASE 0xe2000000
-#define MPC834x_SYS_PCI1_MEM_OFFSET 0x00000000
-
-#define MPC834x_SYS_PCI1_IO_SIZE 0x01000000
-#endif /* CONFIG_PCI */
+#define PIRQA MPC83xx_IRQ_EXT4
+#define PIRQB MPC83xx_IRQ_EXT5
+#define PIRQC MPC83xx_IRQ_EXT6
+#define PIRQD MPC83xx_IRQ_EXT7
+
+#define MPC83xx_PCI1_LOWER_IO 0x00000000
+#define MPC83xx_PCI1_UPPER_IO 0x00ffffff
+#define MPC83xx_PCI1_LOWER_MEM 0x80000000
+#define MPC83xx_PCI1_UPPER_MEM 0x9fffffff
+#define MPC83xx_PCI1_IO_BASE 0xe2000000
+#define MPC83xx_PCI1_MEM_OFFSET 0x00000000
+#define MPC83xx_PCI1_IO_SIZE 0x01000000
+
+#define MPC83xx_PCI2_LOWER_IO 0x00000000
+#define MPC83xx_PCI2_UPPER_IO 0x00ffffff
+#define MPC83xx_PCI2_LOWER_MEM 0xa0000000
+#define MPC83xx_PCI2_UPPER_MEM 0xbfffffff
+#define MPC83xx_PCI2_IO_BASE 0xe3000000
+#define MPC83xx_PCI2_MEM_OFFSET 0x00000000
+#define MPC83xx_PCI2_IO_SIZE 0x01000000
#endif /* __MACH_MPC83XX_SYS_H__ */
diff --git a/arch/ppc/syslib/ppc83xx_pci.h b/arch/ppc/syslib/ppc83xx_pci.h
new file mode 100644
--- /dev/null
+++ b/arch/ppc/syslib/ppc83xx_pci.h
@@ -0,0 +1,151 @@
+/* Created by Tony Li <tony.li@freescale.com>
+ * Copyright (c) 2005 freescale semiconductor
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __PPC_SYSLIB_PPC83XX_PCI_H
+#define __PPC_SYSLIB_PPC83XX_PCI_H
+
+typedef struct immr_clk {
+ u32 spmr; /* system PLL mode Register */
+ u32 occr; /* output clock control Register */
+ u32 sccr; /* system clock control Register */
+ u8 res0[0xF4];
+} immr_clk_t;
+
+/*
+ * Sequencer
+ */
+typedef struct immr_ios {
+ u32 potar0;
+ u8 res0[4];
+ u32 pobar0;
+ u8 res1[4];
+ u32 pocmr0;
+ u8 res2[4];
+ u32 potar1;
+ u8 res3[4];
+ u32 pobar1;
+ u8 res4[4];
+ u32 pocmr1;
+ u8 res5[4];
+ u32 potar2;
+ u8 res6[4];
+ u32 pobar2;
+ u8 res7[4];
+ u32 pocmr2;
+ u8 res8[4];
+ u32 potar3;
+ u8 res9[4];
+ u32 pobar3;
+ u8 res10[4];
+ u32 pocmr3;
+ u8 res11[4];
+ u32 potar4;
+ u8 res12[4];
+ u32 pobar4;
+ u8 res13[4];
+ u32 pocmr4;
+ u8 res14[4];
+ u32 potar5;
+ u8 res15[4];
+ u32 pobar5;
+ u8 res16[4];
+ u32 pocmr5;
+ u8 res17[4];
+ u8 res18[0x60];
+ u32 pmcr;
+ u8 res19[4];
+ u32 dtcr;
+ u8 res20[4];
+} immr_ios_t;
+#define POTAR_TA_MASK 0x000fffff
+#define POBAR_BA_MASK 0x000fffff
+#define POCMR_EN 0x80000000
+#define POCMR_IO 0x40000000 /* 0--memory space 1--I/O space */
+#define POCMR_SE 0x20000000 /* streaming enable */
+#define POCMR_DST 0x10000000 /* 0--PCI1 1--PCI2 */
+#define POCMR_CM_MASK 0x000fffff
+
+/*
+ * PCI Controller Control and Status Registers
+ */
+typedef struct immr_pcictrl {
+ u32 esr;
+ u32 ecdr;
+ u32 eer;
+ u32 eatcr;
+ u32 eacr;
+ u32 eeacr;
+ u32 edlcr;
+ u32 edhcr;
+ u32 gcr;
+ u32 ecr;
+ u32 gsr;
+ u8 res0[12];
+ u32 pitar2;
+ u8 res1[4];
+ u32 pibar2;
+ u32 piebar2;
+ u32 piwar2;
+ u8 res2[4];
+ u32 pitar1;
+ u8 res3[4];
+ u32 pibar1;
+ u32 piebar1;
+ u32 piwar1;
+ u8 res4[4];
+ u32 pitar0;
+ u8 res5[4];
+ u32 pibar0;
+ u8 res6[4];
+ u32 piwar0;
+ u8 res7[132];
+} immr_pcictrl_t;
+#define PITAR_TA_MASK 0x000fffff
+#define PIBAR_MASK 0xffffffff
+#define PIEBAR_EBA_MASK 0x000fffff
+#define PIWAR_EN 0x80000000
+#define PIWAR_PF 0x20000000
+#define PIWAR_RTT_MASK 0x000f0000
+#define PIWAR_RTT_NO_SNOOP 0x00040000
+#define PIWAR_RTT_SNOOP 0x00050000
+#define PIWAR_WTT_MASK 0x0000f000
+#define PIWAR_WTT_NO_SNOOP 0x00004000
+#define PIWAR_WTT_SNOOP 0x00005000
+#define PIWAR_IWS_MASK 0x0000003F
+#define PIWAR_IWS_4K 0x0000000B
+#define PIWAR_IWS_8K 0x0000000C
+#define PIWAR_IWS_16K 0x0000000D
+#define PIWAR_IWS_32K 0x0000000E
+#define PIWAR_IWS_64K 0x0000000F
+#define PIWAR_IWS_128K 0x00000010
+#define PIWAR_IWS_256K 0x00000011
+#define PIWAR_IWS_512K 0x00000012
+#define PIWAR_IWS_1M 0x00000013
+#define PIWAR_IWS_2M 0x00000014
+#define PIWAR_IWS_4M 0x00000015
+#define PIWAR_IWS_8M 0x00000016
+#define PIWAR_IWS_16M 0x00000017
+#define PIWAR_IWS_32M 0x00000018
+#define PIWAR_IWS_64M 0x00000019
+#define PIWAR_IWS_128M 0x0000001A
+#define PIWAR_IWS_256M 0x0000001B
+#define PIWAR_IWS_512M 0x0000001C
+#define PIWAR_IWS_1G 0x0000001D
+#define PIWAR_IWS_2G 0x0000001E
+
+#endif /* __PPC_SYSLIB_PPC83XX_PCI_H */
diff --git a/arch/ppc/syslib/ppc83xx_setup.c b/arch/ppc/syslib/ppc83xx_setup.c
--- a/arch/ppc/syslib/ppc83xx_setup.c
+++ b/arch/ppc/syslib/ppc83xx_setup.c
@@ -11,6 +11,17 @@
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Added PCI support -- Tony Li <tony.li@freescale.com>
*/
#include <linux/config.h>
@@ -31,6 +42,10 @@
#include <asm/delay.h>
#include <syslib/ppc83xx_setup.h>
+#if defined(CONFIG_PCI)
+#include <asm/delay.h>
+#include <syslib/ppc83xx_pci.h>
+#endif
phys_addr_t immrbar;
@@ -162,4 +177,237 @@ mpc83xx_halt(void)
for(;;);
}
-/* PCI SUPPORT DOES NOT EXIT, MODEL after ppc85xx_setup.c */
+#if defined(CONFIG_PCI)
+void __init
+mpc83xx_setup_pci1(struct pci_controller *hose)
+{
+ u16 reg16;
+ volatile immr_pcictrl_t * pci_ctrl;
+ volatile immr_ios_t * ios;
+ bd_t *binfo = (bd_t *) __res;
+
+ pci_ctrl = ioremap(binfo->bi_immr_base + 0x8500, sizeof(immr_pcictrl_t));
+ ios = ioremap(binfo->bi_immr_base + 0x8400, sizeof(immr_ios_t));
+
+ /*
+ * Configure PCI Outbound Translation Windows
+ */
+ ios->potar0 = (MPC83xx_PCI1_LOWER_MEM >> 12) & POTAR_TA_MASK;
+ ios->pobar0 = (MPC83xx_PCI1_LOWER_MEM >> 12) & POBAR_BA_MASK;
+ ios->pocmr0 = POCMR_EN |
+ (((0xffffffff - (MPC83xx_PCI1_UPPER_MEM -
+ MPC83xx_PCI1_LOWER_MEM)) >> 12) & POCMR_CM_MASK);
+
+ /* mapped to PCI1 IO space */
+ ios->potar1 = (MPC83xx_PCI1_LOWER_IO >> 12) & POTAR_TA_MASK;
+ ios->pobar1 = (MPC83xx_PCI1_IO_BASE >> 12) & POBAR_BA_MASK;
+ ios->pocmr1 = POCMR_EN | POCMR_IO |
+ (((0xffffffff - (MPC83xx_PCI1_UPPER_IO -
+ MPC83xx_PCI1_LOWER_IO)) >> 12) & POCMR_CM_MASK);
+
+ /*
+ * Configure PCI Inbound Translation Windows
+ */
+ pci_ctrl->pitar1 = 0x0;
+ pci_ctrl->pibar1 = 0x0;
+ pci_ctrl->piebar1 = 0x0;
+ pci_ctrl->piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP | PIWAR_IWS_2G;
+
+ /*
+ * Release PCI RST signal
+ */
+ pci_ctrl->gcr = 0;
+ udelay(2000);
+ pci_ctrl->gcr = 1;
+ udelay(2000);
+
+ reg16 = 0xff;
+ early_read_config_word(hose, hose->first_busno, 0, PCI_COMMAND, ®16);
+ reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
+ early_write_config_word(hose, hose->first_busno, 0, PCI_COMMAND, reg16);
+
+ /*
+ * Clear non-reserved bits in status register.
+ */
+ early_write_config_word(hose, hose->first_busno, 0, PCI_STATUS, 0xffff);
+ early_write_config_byte(hose, hose->first_busno, 0, PCI_LATENCY_TIMER, 0x80);
+
+ iounmap(pci_ctrl);
+ iounmap(ios);
+}
+
+void __init
+mpc83xx_setup_pci2(struct pci_controller *hose)
+{
+ u16 reg16;
+ volatile immr_pcictrl_t * pci_ctrl;
+ volatile immr_ios_t * ios;
+ bd_t *binfo = (bd_t *) __res;
+
+ pci_ctrl = ioremap(binfo->bi_immr_base + 0x8600, sizeof(immr_pcictrl_t));
+ ios = ioremap(binfo->bi_immr_base + 0x8400, sizeof(immr_ios_t));
+
+ /*
+ * Configure PCI Outbound Translation Windows
+ */
+ ios->potar3 = (MPC83xx_PCI2_LOWER_MEM >> 12) & POTAR_TA_MASK;
+ ios->pobar3 = (MPC83xx_PCI2_LOWER_MEM >> 12) & POBAR_BA_MASK;
+ ios->pocmr3 = POCMR_EN | POCMR_DST |
+ (((0xffffffff - (MPC83xx_PCI2_UPPER_MEM -
+ MPC83xx_PCI2_LOWER_MEM)) >> 12) & POCMR_CM_MASK);
+
+ /* mapped to PCI2 IO space */
+ ios->potar4 = (MPC83xx_PCI2_LOWER_IO >> 12) & POTAR_TA_MASK;
+ ios->pobar4 = (MPC83xx_PCI2_IO_BASE >> 12) & POBAR_BA_MASK;
+ ios->pocmr4 = POCMR_EN | POCMR_DST | POCMR_IO |
+ (((0xffffffff - (MPC83xx_PCI2_UPPER_IO -
+ MPC83xx_PCI2_LOWER_IO)) >> 12) & POCMR_CM_MASK);
+
+ /*
+ * Configure PCI Inbound Translation Windows
+ */
+ pci_ctrl->pitar1 = 0x0;
+ pci_ctrl->pibar1 = 0x0;
+ pci_ctrl->piebar1 = 0x0;
+ pci_ctrl->piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP | PIWAR_IWS_2G;
+
+ /*
+ * Release PCI RST signal
+ */
+ pci_ctrl->gcr = 0;
+ udelay(2000);
+ pci_ctrl->gcr = 1;
+ udelay(2000);
+
+ reg16 = 0xff;
+ early_read_config_word(hose, hose->first_busno, 0, PCI_COMMAND, ®16);
+ reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
+ early_write_config_word(hose, hose->first_busno, 0, PCI_COMMAND, reg16);
+
+ /*
+ * Clear non-reserved bits in status register.
+ */
+ early_write_config_word(hose, hose->first_busno, 0, PCI_STATUS, 0xffff);
+ early_write_config_byte(hose, hose->first_busno, 0, PCI_LATENCY_TIMER, 0x80);
+
+ iounmap(pci_ctrl);
+ iounmap(ios);
+}
+
+/*
+ * PCI buses can be enabled only if SYS board combinates with PIB
+ * (Platform IO Board) board which provide 3 PCI slots. There is 2 PCI buses
+ * and 3 PCI slots, so people must configure the routes between them before
+ * enable PCI bus. This routes are under the control of PCA9555PW device which
+ * can be accessed via I2C bus 2 and are configured by firmware. Refer to
+ * Freescale to get more information about firmware configuration.
+ */
+
+extern int mpc83xx_exclude_device(u_char bus, u_char devfn);
+extern int mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel,
+ unsigned char pin);
+void __init
+mpc83xx_setup_hose(void)
+{
+ u32 val32;
+ volatile immr_clk_t * clk;
+ struct pci_controller * hose1;
+#ifdef CONFIG_MPC83xx_PCI2
+ struct pci_controller * hose2;
+#endif
+ bd_t * binfo = (bd_t *)__res;
+
+ clk = ioremap(binfo->bi_immr_base + 0xA00,
+ sizeof(immr_clk_t));
+
+ /*
+ * Configure PCI controller and PCI_CLK_OUTPUT both in 66M mode
+ */
+ val32 = clk->occr;
+ udelay(2000);
+ clk->occr = 0xff000000;
+ udelay(2000);
+
+ iounmap(clk);
+
+ hose1 = pcibios_alloc_controller();
+ if(!hose1)
+ return;
+
+ ppc_md.pci_swizzle = common_swizzle;
+ ppc_md.pci_map_irq = mpc83xx_map_irq;
+
+ hose1->bus_offset = 0;
+ hose1->first_busno = 0;
+ hose1->last_busno = 0xff;
+
+ setup_indirect_pci(hose1, binfo->bi_immr_base + PCI1_CFG_ADDR_OFFSET,
+ binfo->bi_immr_base + PCI1_CFG_DATA_OFFSET);
+ hose1->set_cfg_type = 1;
+
+ mpc83xx_setup_pci1(hose1);
+
+ hose1->pci_mem_offset = MPC83xx_PCI1_MEM_OFFSET;
+ hose1->mem_space.start = MPC83xx_PCI1_LOWER_MEM;
+ hose1->mem_space.end = MPC83xx_PCI1_UPPER_MEM;
+
+ hose1->io_base_phys = MPC83xx_PCI1_IO_BASE;
+ hose1->io_space.start = MPC83xx_PCI1_LOWER_IO;
+ hose1->io_space.end = MPC83xx_PCI1_UPPER_IO;
+#ifdef CONFIG_MPC83xx_PCI2
+ isa_io_base = (unsigned long)ioremap(MPC83xx_PCI1_IO_BASE,
+ MPC83xx_PCI1_IO_SIZE + MPC83xx_PCI2_IO_SIZE);
+#else
+ isa_io_base = (unsigned long)ioremap(MPC83xx_PCI1_IO_BASE,
+ MPC83xx_PCI1_IO_SIZE);
+#endif /* CONFIG_MPC83xx_PCI2 */
+ hose1->io_base_virt = (void *)isa_io_base;
+ /* setup resources */
+ pci_init_resource(&hose1->io_resource,
+ MPC83xx_PCI1_LOWER_IO,
+ MPC83xx_PCI1_UPPER_IO,
+ IORESOURCE_IO, "PCI host bridge 1");
+ pci_init_resource(&hose1->mem_resources[0],
+ MPC83xx_PCI1_LOWER_MEM,
+ MPC83xx_PCI1_UPPER_MEM,
+ IORESOURCE_MEM, "PCI host bridge 1");
+
+ ppc_md.pci_exclude_device = mpc83xx_exclude_device;
+ hose1->last_busno = pciauto_bus_scan(hose1, hose1->first_busno);
+
+#ifdef CONFIG_MPC83xx_PCI2
+ hose2 = pcibios_alloc_controller();
+ if(!hose2)
+ return;
+
+ hose2->bus_offset = hose1->last_busno + 1;
+ hose2->first_busno = hose1->last_busno + 1;
+ hose2->last_busno = 0xff;
+ setup_indirect_pci(hose2, binfo->bi_immr_base + PCI2_CFG_ADDR_OFFSET,
+ binfo->bi_immr_base + PCI2_CFG_DATA_OFFSET);
+ hose2->set_cfg_type = 1;
+
+ mpc83xx_setup_pci2(hose2);
+
+ hose2->pci_mem_offset = MPC83xx_PCI2_MEM_OFFSET;
+ hose2->mem_space.start = MPC83xx_PCI2_LOWER_MEM;
+ hose2->mem_space.end = MPC83xx_PCI2_UPPER_MEM;
+
+ hose2->io_base_phys = MPC83xx_PCI2_IO_BASE;
+ hose2->io_space.start = MPC83xx_PCI2_LOWER_IO;
+ hose2->io_space.end = MPC83xx_PCI2_UPPER_IO;
+ hose2->io_base_virt = (void *)(isa_io_base + MPC83xx_PCI1_IO_SIZE);
+ /* setup resources */
+ pci_init_resource(&hose2->io_resource,
+ MPC83xx_PCI2_LOWER_IO,
+ MPC83xx_PCI2_UPPER_IO,
+ IORESOURCE_IO, "PCI host bridge 2");
+ pci_init_resource(&hose2->mem_resources[0],
+ MPC83xx_PCI2_LOWER_MEM,
+ MPC83xx_PCI2_UPPER_MEM,
+ IORESOURCE_MEM, "PCI host bridge 2");
+
+ hose2->last_busno = pciauto_bus_scan(hose2, hose2->first_busno);
+#endif /* CONFIG_MPC83xx_PCI2 */
+}
+#endif /*CONFIG_PCI*/
diff --git a/arch/ppc/syslib/ppc83xx_setup.h b/arch/ppc/syslib/ppc83xx_setup.h
--- a/arch/ppc/syslib/ppc83xx_setup.h
+++ b/arch/ppc/syslib/ppc83xx_setup.h
@@ -12,6 +12,14 @@
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __PPC_SYSLIB_PPC83XX_SETUP_H
@@ -19,7 +27,6 @@
#include <linux/config.h>
#include <linux/init.h>
-#include <asm/ppcboot.h>
extern unsigned long mpc83xx_find_end_of_memory(void) __init;
extern long mpc83xx_time_init(void) __init;
@@ -31,13 +38,11 @@ extern void mpc83xx_halt(void);
extern void mpc83xx_setup_hose(void) __init;
/* PCI config */
-#if 0
-#define PCI1_CFG_ADDR_OFFSET (FIXME)
-#define PCI1_CFG_DATA_OFFSET (FIXME)
+#define PCI1_CFG_ADDR_OFFSET (0x8300)
+#define PCI1_CFG_DATA_OFFSET (0x8304)
-#define PCI2_CFG_ADDR_OFFSET (FIXME)
-#define PCI2_CFG_DATA_OFFSET (FIXME)
-#endif
+#define PCI2_CFG_ADDR_OFFSET (0x8380)
+#define PCI2_CFG_DATA_OFFSET (0x8384)
/* Serial Config */
#ifdef CONFIG_SERIAL_MANY_PORTS
^ permalink raw reply [flat|nested] 10+ messages in thread* Re: [PATCH] ppc32 :Added PCI support for MPC83xx
2005-08-29 17:42 ` Kumar Gala
@ 2005-08-29 18:07 ` Dan Malek
2005-08-29 22:00 ` Kumar Gala
0 siblings, 1 reply; 10+ messages in thread
From: Dan Malek @ 2005-08-29 18:07 UTC (permalink / raw)
To: Kumar Gala
Cc: linux-kernel, linuxppc-embedded, Chu hanjin-r52514,
Li Tony-r64360
On Aug 29, 2005, at 1:42 PM, Kumar Gala wrote:
> diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.c
> b/arch/ppc/platforms/83xx/mpc834x_sys.c
> --- a/arch/ppc/platforms/83xx/mpc834x_sys.c
> +++ b/arch/ppc/platforms/83xx/mpc834x_sys.c
> @@ -62,9 +62,29 @@ extern unsigned long total_memory; /* in
> unsigned char __res[sizeof (bd_t)];
>
> #ifdef CONFIG_PCI
> -#error "PCI is not supported"
> -/* NEED mpc83xx_map_irq & mpc83xx_exclude_device
> - see platforms/85xx/mpc85xx_ads_common.c */
> +int
> +mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned
> char pin)
> +{
> + static char pci_irq_table[][4] =
> + /*
> + * PCI IDSEL/INTPIN->INTLINE
> + * A B C D
> + */
> + {
> + {PIRQA, PIRQB, PIRQC, PIRQD}, /* idsel 0x11 */
> + {PIRQC, PIRQD, PIRQA, PIRQB}, /* idsel 0x12 */
> + {PIRQD, PIRQA, PIRQB, PIRQC} /* idsel 0x13 */
> + };
> +
> + const long min_idsel = 0x11, max_idsel = 0x13, irqs_per_slot = 4;
> + return PCI_IRQ_TABLE_LOOKUP;
> +}
> +
> +int
> +mpc83xx_exclude_device(u_char bus, u_char devfn)
> +{
> + return PCIBIOS_SUCCESSFUL;
> +}
> #endif /* CONFIG_PCI */
Shouldn't this be in the PQ2FADS board specific file? Not everyone
is going to map IDSELs and IRQs this way.
> diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.h
> b/arch/ppc/platforms/83xx/mpc834x_sys.h
> --- a/arch/ppc/platforms/83xx/mpc834x_sys.h
> +++ b/arch/ppc/platforms/83xx/mpc834x_sys.h
> @@ -26,7 +26,7 @@
> #define VIRT_IMMRBAR ((uint)0xfe000000)
>
> #define BCSR_PHYS_ADDR ((uint)0xf8000000)
> -#define BCSR_SIZE ((uint)(32 * 1024))
> +#define BCSR_SIZE ((uint)(128 * 1024))
>
> #define BCSR_MISC_REG2_OFF 0x07
> #define BCSR_MISC_REG2_PORESET 0x01
> @@ -34,23 +34,25 @@
> #define BCSR_MISC_REG3_OFF 0x08
> #define BCSR_MISC_REG3_CNFLOCK 0x80
>
> -#ifdef CONFIG_PCI
> -/* PCI interrupt controller */
> -#define PIRQA MPC83xx_IRQ_IRQ4
> -#define PIRQB MPC83xx_IRQ_IRQ5
> -#define PIRQC MPC83xx_IRQ_IRQ6
> -#define PIRQD MPC83xx_IRQ_IRQ7
> -
> -#define MPC834x_SYS_PCI1_LOWER_IO 0x00000000
> -#define MPC834x_SYS_PCI1_UPPER_IO 0x00ffffff
> -
> -#define MPC834x_SYS_PCI1_LOWER_MEM 0x80000000
> -#define MPC834x_SYS_PCI1_UPPER_MEM 0x9fffffff
> -
> -#define MPC834x_SYS_PCI1_IO_BASE 0xe2000000
> -#define MPC834x_SYS_PCI1_MEM_OFFSET 0x00000000
> -
> -#define MPC834x_SYS_PCI1_IO_SIZE 0x01000000
> -#endif /* CONFIG_PCI */
> +#define PIRQA MPC83xx_IRQ_EXT4
> +#define PIRQB MPC83xx_IRQ_EXT5
> +#define PIRQC MPC83xx_IRQ_EXT6
> +#define PIRQD MPC83xx_IRQ_EXT7
The same thing with these BCSRs and IRQ mappings .... FADS specific.
> +
> +#define MPC83xx_PCI1_LOWER_IO 0x00000000
> +#define MPC83xx_PCI1_UPPER_IO 0x00ffffff
> +#define MPC83xx_PCI1_LOWER_MEM 0x80000000
> +#define MPC83xx_PCI1_UPPER_MEM 0x9fffffff
> +#define MPC83xx_PCI1_IO_BASE 0xe2000000
> +#define MPC83xx_PCI1_MEM_OFFSET 0x00000000
> +#define MPC83xx_PCI1_IO_SIZE 0x01000000
> +
> +#define MPC83xx_PCI2_LOWER_IO 0x00000000
> +#define MPC83xx_PCI2_UPPER_IO 0x00ffffff
> +#define MPC83xx_PCI2_LOWER_MEM 0xa0000000
> +#define MPC83xx_PCI2_UPPER_MEM 0xbfffffff
> +#define MPC83xx_PCI2_IO_BASE 0xe3000000
> +#define MPC83xx_PCI2_MEM_OFFSET 0x00000000
> +#define MPC83xx_PCI2_IO_SIZE 0x01000000
These should be generic to everyone, and could be
in the ppc83xx_pci.h file. Maybe surround them with
#ifndef so a board specific file could move the addresses
if they wanted? I don't think an #ifndef is needed for each
define, maybe just #fndef MPC83xx_PCI1_LOWER_MEM
and let the board define everything if they want anything different.
Thanks.
-- Dan
^ permalink raw reply [flat|nested] 10+ messages in thread* Re: [PATCH] ppc32 :Added PCI support for MPC83xx
2005-08-29 18:07 ` Dan Malek
@ 2005-08-29 22:00 ` Kumar Gala
0 siblings, 0 replies; 10+ messages in thread
From: Kumar Gala @ 2005-08-29 22:00 UTC (permalink / raw)
To: Dan Malek
Cc: linux-kernel, linuxppc-embedded, Chu hanjin-r52514,
Gala Kumar K.-galak, Li Tony-r64360
On Aug 29, 2005, at 1:07 PM, Dan Malek wrote:
>
> On Aug 29, 2005, at 1:42 PM, Kumar Gala wrote:
>
>
>> diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.c
>> b/arch/ppc/platforms/83xx/mpc834x_sys.c
>> --- a/arch/ppc/platforms/83xx/mpc834x_sys.c
>> +++ b/arch/ppc/platforms/83xx/mpc834x_sys.c
>> @@ -62,9 +62,29 @@ extern unsigned long total_memory; /* in
>> unsigned char __res[sizeof (bd_t)];
>>
>> #ifdef CONFIG_PCI
>> -#error "PCI is not supported"
>> -/* NEED mpc83xx_map_irq & mpc83xx_exclude_device
>> - see platforms/85xx/mpc85xx_ads_common.c */
>> +int
>> +mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned
>> char pin)
>> +{
>> + static char pci_irq_table[][4] =
>> + /*
>> + * PCI IDSEL/INTPIN->INTLINE
>> + * A B C D
>> + */
>> + {
>> + {PIRQA, PIRQB, PIRQC, PIRQD}, /* idsel 0x11 */
>> + {PIRQC, PIRQD, PIRQA, PIRQB}, /* idsel 0x12 */
>> + {PIRQD, PIRQA, PIRQB, PIRQC} /* idsel 0x13 */
>> + };
>> +
>> + const long min_idsel = 0x11, max_idsel = 0x13, irqs_per_slot =
>>
> 4;
>
>> + return PCI_IRQ_TABLE_LOOKUP;
>> +}
>> +
>> +int
>> +mpc83xx_exclude_device(u_char bus, u_char devfn)
>> +{
>> + return PCIBIOS_SUCCESSFUL;
>> +}
>> #endif /* CONFIG_PCI */
>>
>
> Shouldn't this be in the PQ2FADS board specific file? Not everyone
> is going to map IDSELs and IRQs this way.
mpc834x_sys is a board specific file.. This is stupid freescale
naming. The board was called MPC8349 SYS... Not sure what its called
now.
>> diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.h
>> b/arch/ppc/platforms/83xx/mpc834x_sys.h
>> --- a/arch/ppc/platforms/83xx/mpc834x_sys.h
>> +++ b/arch/ppc/platforms/83xx/mpc834x_sys.h
>> @@ -26,7 +26,7 @@
>> #define VIRT_IMMRBAR ((uint)0xfe000000)
>>
>> #define BCSR_PHYS_ADDR ((uint)0xf8000000)
>> -#define BCSR_SIZE ((uint)(32 * 1024))
>> +#define BCSR_SIZE ((uint)(128 * 1024))
>>
>> #define BCSR_MISC_REG2_OFF 0x07
>> #define BCSR_MISC_REG2_PORESET 0x01
>> @@ -34,23 +34,25 @@
>> #define BCSR_MISC_REG3_OFF 0x08
>> #define BCSR_MISC_REG3_CNFLOCK 0x80
>>
>> -#ifdef CONFIG_PCI
>> -/* PCI interrupt controller */
>> -#define PIRQA MPC83xx_IRQ_IRQ4
>> -#define PIRQB MPC83xx_IRQ_IRQ5
>> -#define PIRQC MPC83xx_IRQ_IRQ6
>> -#define PIRQD MPC83xx_IRQ_IRQ7
>> -
>> -#define MPC834x_SYS_PCI1_LOWER_IO 0x00000000
>> -#define MPC834x_SYS_PCI1_UPPER_IO 0x00ffffff
>> -
>> -#define MPC834x_SYS_PCI1_LOWER_MEM 0x80000000
>> -#define MPC834x_SYS_PCI1_UPPER_MEM 0x9fffffff
>> -
>> -#define MPC834x_SYS_PCI1_IO_BASE 0xe2000000
>> -#define MPC834x_SYS_PCI1_MEM_OFFSET 0x00000000
>> -
>> -#define MPC834x_SYS_PCI1_IO_SIZE 0x01000000
>> -#endif /* CONFIG_PCI */
>> +#define PIRQA MPC83xx_IRQ_EXT4
>> +#define PIRQB MPC83xx_IRQ_EXT5
>> +#define PIRQC MPC83xx_IRQ_EXT6
>> +#define PIRQD MPC83xx_IRQ_EXT7
>>
>
> The same thing with these BCSRs and IRQ mappings .... FADS specific.
Same comment as above.
>
>
>> +
>> +#define MPC83xx_PCI1_LOWER_IO 0x00000000
>> +#define MPC83xx_PCI1_UPPER_IO 0x00ffffff
>> +#define MPC83xx_PCI1_LOWER_MEM 0x80000000
>> +#define MPC83xx_PCI1_UPPER_MEM 0x9fffffff
>> +#define MPC83xx_PCI1_IO_BASE 0xe2000000
>> +#define MPC83xx_PCI1_MEM_OFFSET 0x00000000
>> +#define MPC83xx_PCI1_IO_SIZE 0x01000000
>> +
>> +#define MPC83xx_PCI2_LOWER_IO 0x00000000
>> +#define MPC83xx_PCI2_UPPER_IO 0x00ffffff
>> +#define MPC83xx_PCI2_LOWER_MEM 0xa0000000
>> +#define MPC83xx_PCI2_UPPER_MEM 0xbfffffff
>> +#define MPC83xx_PCI2_IO_BASE 0xe3000000
>> +#define MPC83xx_PCI2_MEM_OFFSET 0x00000000
>> +#define MPC83xx_PCI2_IO_SIZE 0x01000000
>>
>
> These should be generic to everyone, and could be
> in the ppc83xx_pci.h file. Maybe surround them with
> #ifndef so a board specific file could move the addresses
> if they wanted? I don't think an #ifndef is needed for each
> define, maybe just #fndef MPC83xx_PCI1_LOWER_MEM
> and let the board define everything if they want anything different.
This is just like how we did 85xx. The board specific file has to
fill out these defines for its memory map. I'm guess this is all
confusion based on the name, if its not just that let me know.
- kumar
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2005-08-30 14:47 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2005-08-30 3:02 [PATCH] ppc32 :Added PCI support for MPC83xx Li Tony-r64360
2005-08-30 4:27 ` Kumar Gala
2005-08-30 14:36 ` Dan Malek
-- strict thread matches above, loose matches on Subject: below --
2005-08-30 8:55 Li Tony-r64360
2005-08-30 14:47 ` Kumar Gala
2005-08-30 8:42 Li Tony-r64360
2005-08-29 9:03 Li Tony-r64360
2005-08-29 17:42 ` Kumar Gala
2005-08-29 18:07 ` Dan Malek
2005-08-29 22:00 ` Kumar Gala
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