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authorIngo Molnar <mingo@elte.hu>2008-10-13 04:52:30 -0400
committerIngo Molnar <mingo@elte.hu>2008-10-13 04:52:30 -0400
commitc493756e2a8a78bcaae30668317890dcfe86e7c3 (patch)
tree8fb40782e79472ed882ff2098d4dd295557278ee /arch/arm/mach-kirkwood/common.c
parent0d15504f16f68725e4635aa85411015d1c573b0a (diff)
parent4480f15b3306f43bbb0310d461142b4e897ca45b (diff)
Merge branch 'linus' into oprofile
Conflicts: arch/x86/kernel/apic_32.c include/linux/pci_ids.h
Diffstat (limited to 'arch/arm/mach-kirkwood/common.c')
-rw-r--r--arch/arm/mach-kirkwood/common.c84
1 files changed, 65 insertions, 19 deletions
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
index 189f16f3619d..85cad05d8c5b 100644
--- a/arch/arm/mach-kirkwood/common.c
+++ b/arch/arm/mach-kirkwood/common.c
@@ -98,7 +98,6 @@ void __init kirkwood_ehci_init(void)
98 * GE00 98 * GE00
99 ****************************************************************************/ 99 ****************************************************************************/
100struct mv643xx_eth_shared_platform_data kirkwood_ge00_shared_data = { 100struct mv643xx_eth_shared_platform_data kirkwood_ge00_shared_data = {
101 .t_clk = KIRKWOOD_TCLK,
102 .dram = &kirkwood_mbus_dram_info, 101 .dram = &kirkwood_mbus_dram_info,
103}; 102};
104 103
@@ -108,6 +107,11 @@ static struct resource kirkwood_ge00_shared_resources[] = {
108 .start = GE00_PHYS_BASE + 0x2000, 107 .start = GE00_PHYS_BASE + 0x2000,
109 .end = GE00_PHYS_BASE + 0x3fff, 108 .end = GE00_PHYS_BASE + 0x3fff,
110 .flags = IORESOURCE_MEM, 109 .flags = IORESOURCE_MEM,
110 }, {
111 .name = "ge00 err irq",
112 .start = IRQ_KIRKWOOD_GE00_ERR,
113 .end = IRQ_KIRKWOOD_GE00_ERR,
114 .flags = IORESOURCE_IRQ,
111 }, 115 },
112}; 116};
113 117
@@ -117,7 +121,7 @@ static struct platform_device kirkwood_ge00_shared = {
117 .dev = { 121 .dev = {
118 .platform_data = &kirkwood_ge00_shared_data, 122 .platform_data = &kirkwood_ge00_shared_data,
119 }, 123 },
120 .num_resources = 1, 124 .num_resources = ARRAY_SIZE(kirkwood_ge00_shared_resources),
121 .resource = kirkwood_ge00_shared_resources, 125 .resource = kirkwood_ge00_shared_resources,
122}; 126};
123 127
@@ -201,7 +205,6 @@ void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data)
201 * SPI 205 * SPI
202 ****************************************************************************/ 206 ****************************************************************************/
203static struct orion_spi_info kirkwood_spi_plat_data = { 207static struct orion_spi_info kirkwood_spi_plat_data = {
204 .tclk = KIRKWOOD_TCLK,
205}; 208};
206 209
207static struct resource kirkwood_spi_resources[] = { 210static struct resource kirkwood_spi_resources[] = {
@@ -239,7 +242,7 @@ static struct plat_serial8250_port kirkwood_uart0_data[] = {
239 .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF, 242 .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
240 .iotype = UPIO_MEM, 243 .iotype = UPIO_MEM,
241 .regshift = 2, 244 .regshift = 2,
242 .uartclk = KIRKWOOD_TCLK, 245 .uartclk = 0,
243 }, { 246 }, {
244 }, 247 },
245}; 248};
@@ -283,7 +286,7 @@ static struct plat_serial8250_port kirkwood_uart1_data[] = {
283 .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF, 286 .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
284 .iotype = UPIO_MEM, 287 .iotype = UPIO_MEM,
285 .regshift = 2, 288 .regshift = 2,
286 .uartclk = KIRKWOOD_TCLK, 289 .uartclk = 0,
287 }, { 290 }, {
288 }, 291 },
289}; 292};
@@ -525,9 +528,23 @@ void __init kirkwood_xor1_init(void)
525/***************************************************************************** 528/*****************************************************************************
526 * Time handling 529 * Time handling
527 ****************************************************************************/ 530 ****************************************************************************/
531int kirkwood_tclk;
532
533int __init kirkwood_find_tclk(void)
534{
535 u32 dev, rev;
536
537 kirkwood_pcie_id(&dev, &rev);
538 if (dev == MV88F6281_DEV_ID && rev == MV88F6281_REV_A0)
539 return 200000000;
540
541 return 166666667;
542}
543
528static void kirkwood_timer_init(void) 544static void kirkwood_timer_init(void)
529{ 545{
530 orion_time_init(IRQ_KIRKWOOD_BRIDGE, KIRKWOOD_TCLK); 546 kirkwood_tclk = kirkwood_find_tclk();
547 orion_time_init(IRQ_KIRKWOOD_BRIDGE, kirkwood_tclk);
531} 548}
532 549
533struct sys_timer kirkwood_timer = { 550struct sys_timer kirkwood_timer = {
@@ -538,33 +555,62 @@ struct sys_timer kirkwood_timer = {
538/***************************************************************************** 555/*****************************************************************************
539 * General 556 * General
540 ****************************************************************************/ 557 ****************************************************************************/
558/*
559 * Identify device ID and revision.
560 */
541static char * __init kirkwood_id(void) 561static char * __init kirkwood_id(void)
542{ 562{
543 switch (readl(DEVICE_ID) & 0x3) { 563 u32 dev, rev;
544 case 0: 564
545 return "88F6180"; 565 kirkwood_pcie_id(&dev, &rev);
546 case 1: 566
547 return "88F6192"; 567 if (dev == MV88F6281_DEV_ID) {
548 case 2: 568 if (rev == MV88F6281_REV_Z0)
549 return "88F6281"; 569 return "MV88F6281-Z0";
570 else if (rev == MV88F6281_REV_A0)
571 return "MV88F6281-A0";
572 else
573 return "MV88F6281-Rev-Unsupported";
574 } else if (dev == MV88F6192_DEV_ID) {
575 if (rev == MV88F6192_REV_Z0)
576 return "MV88F6192-Z0";
577 else if (rev == MV88F6192_REV_A0)
578 return "MV88F6192-A0";
579 else
580 return "MV88F6192-Rev-Unsupported";
581 } else if (dev == MV88F6180_DEV_ID) {
582 if (rev == MV88F6180_REV_A0)
583 return "MV88F6180-Rev-A0";
584 else
585 return "MV88F6180-Rev-Unsupported";
586 } else {
587 return "Device-Unknown";
550 } 588 }
551
552 return "unknown 88F6000 variant";
553} 589}
554 590
555static int __init is_l2_writethrough(void) 591static void __init kirkwood_l2_init(void)
556{ 592{
557 return !!(readl(L2_CONFIG_REG) & L2_WRITETHROUGH); 593#ifdef CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH
594 writel(readl(L2_CONFIG_REG) | L2_WRITETHROUGH, L2_CONFIG_REG);
595 feroceon_l2_init(1);
596#else
597 writel(readl(L2_CONFIG_REG) & ~L2_WRITETHROUGH, L2_CONFIG_REG);
598 feroceon_l2_init(0);
599#endif
558} 600}
559 601
560void __init kirkwood_init(void) 602void __init kirkwood_init(void)
561{ 603{
562 printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n", 604 printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n",
563 kirkwood_id(), KIRKWOOD_TCLK); 605 kirkwood_id(), kirkwood_tclk);
606 kirkwood_ge00_shared_data.t_clk = kirkwood_tclk;
607 kirkwood_spi_plat_data.tclk = kirkwood_tclk;
608 kirkwood_uart0_data[0].uartclk = kirkwood_tclk;
609 kirkwood_uart1_data[0].uartclk = kirkwood_tclk;
564 610
565 kirkwood_setup_cpu_mbus(); 611 kirkwood_setup_cpu_mbus();
566 612
567#ifdef CONFIG_CACHE_FEROCEON_L2 613#ifdef CONFIG_CACHE_FEROCEON_L2
568 feroceon_l2_init(is_l2_writethrough()); 614 kirkwood_l2_init();
569#endif 615#endif
570} 616}