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authorOlof Johansson <olof@lixom.net>2013-01-24 11:12:24 -0500
committerOlof Johansson <olof@lixom.net>2013-01-24 11:12:24 -0500
commit3836414f45b01486b9b50c627a329010573ad0f4 (patch)
treef41e51a6194491a63dc6f86473f335a07e031488
parent60fd8e35e32087eed200bea99be037b5f75a016e (diff)
parent52666298aebe5e9ab28a773ee61d2ce81fa097bb (diff)
Merge branch 'vexpress/fixes' of git://git.linaro.org/people/pawelmoll/linux into fixes
From Pawel Moll: - makes the V2P-CA15_A7 (a.k.a. TC2) work with 3.8 kernels - improves vexpress-sysreg.c behaviour on arm64 platforms * 'vexpress/fixes' of git://git.linaro.org/people/pawelmoll/linux: mfd: vexpress-sysreg: Don't skip initialization on probe ARM: vexpress: Enable A7 cores in V2P-CA15_A7's Device Tree ARM: vexpress: extend the MPIDR range used for pen release check
-rw-r--r--arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts2
-rw-r--r--arch/arm/plat-versatile/headsmp.S2
-rw-r--r--drivers/mfd/vexpress-sysreg.c32
3 files changed, 21 insertions, 15 deletions
diff --git a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
index 1fc405a9ecfb..cf8071ad22d5 100644
--- a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
+++ b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
@@ -45,7 +45,6 @@
45 reg = <1>; 45 reg = <1>;
46 }; 46 };
47 47
48/* A7s disabled till big.LITTLE patches are available...
49 cpu2: cpu@2 { 48 cpu2: cpu@2 {
50 device_type = "cpu"; 49 device_type = "cpu";
51 compatible = "arm,cortex-a7"; 50 compatible = "arm,cortex-a7";
@@ -63,7 +62,6 @@
63 compatible = "arm,cortex-a7"; 62 compatible = "arm,cortex-a7";
64 reg = <0x102>; 63 reg = <0x102>;
65 }; 64 };
66*/
67 }; 65 };
68 66
69 memory@80000000 { 67 memory@80000000 {
diff --git a/arch/arm/plat-versatile/headsmp.S b/arch/arm/plat-versatile/headsmp.S
index dd703ef09b8d..b178d44e9eaa 100644
--- a/arch/arm/plat-versatile/headsmp.S
+++ b/arch/arm/plat-versatile/headsmp.S
@@ -20,7 +20,7 @@
20 */ 20 */
21ENTRY(versatile_secondary_startup) 21ENTRY(versatile_secondary_startup)
22 mrc p15, 0, r0, c0, c0, 5 22 mrc p15, 0, r0, c0, c0, 5
23 and r0, r0, #15 23 bic r0, #0xff000000
24 adr r4, 1f 24 adr r4, 1f
25 ldmia r4, {r5, r6} 25 ldmia r4, {r5, r6}
26 sub r4, r4, r5 26 sub r4, r4, r5
diff --git a/drivers/mfd/vexpress-sysreg.c b/drivers/mfd/vexpress-sysreg.c
index e5d8f63b252a..77048b18439e 100644
--- a/drivers/mfd/vexpress-sysreg.c
+++ b/drivers/mfd/vexpress-sysreg.c
@@ -313,19 +313,11 @@ static void vexpress_sysreg_config_complete(unsigned long data)
313} 313}
314 314
315 315
316void __init vexpress_sysreg_early_init(void __iomem *base) 316void __init vexpress_sysreg_setup(struct device_node *node)
317{ 317{
318 struct device_node *node = of_find_compatible_node(NULL, NULL, 318 if (WARN_ON(!vexpress_sysreg_base))
319 "arm,vexpress-sysreg");
320
321 if (node)
322 base = of_iomap(node, 0);
323
324 if (WARN_ON(!base))
325 return; 319 return;
326 320
327 vexpress_sysreg_base = base;
328
329 if (readl(vexpress_sysreg_base + SYS_MISC) & SYS_MISC_MASTERSITE) 321 if (readl(vexpress_sysreg_base + SYS_MISC) & SYS_MISC_MASTERSITE)
330 vexpress_master_site = VEXPRESS_SITE_DB2; 322 vexpress_master_site = VEXPRESS_SITE_DB2;
331 else 323 else
@@ -336,9 +328,23 @@ void __init vexpress_sysreg_early_init(void __iomem *base)
336 WARN_ON(!vexpress_sysreg_config_bridge); 328 WARN_ON(!vexpress_sysreg_config_bridge);
337} 329}
338 330
331void __init vexpress_sysreg_early_init(void __iomem *base)
332{
333 vexpress_sysreg_base = base;
334 vexpress_sysreg_setup(NULL);
335}
336
339void __init vexpress_sysreg_of_early_init(void) 337void __init vexpress_sysreg_of_early_init(void)
340{ 338{
341 vexpress_sysreg_early_init(NULL); 339 struct device_node *node = of_find_compatible_node(NULL, NULL,
340 "arm,vexpress-sysreg");
341
342 if (node) {
343 vexpress_sysreg_base = of_iomap(node, 0);
344 vexpress_sysreg_setup(node);
345 } else {
346 pr_info("vexpress-sysreg: No Device Tree node found.");
347 }
342} 348}
343 349
344 350
@@ -426,9 +432,11 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
426 return -EBUSY; 432 return -EBUSY;
427 } 433 }
428 434
429 if (!vexpress_sysreg_base) 435 if (!vexpress_sysreg_base) {
430 vexpress_sysreg_base = devm_ioremap(&pdev->dev, res->start, 436 vexpress_sysreg_base = devm_ioremap(&pdev->dev, res->start,
431 resource_size(res)); 437 resource_size(res));
438 vexpress_sysreg_setup(pdev->dev.of_node);
439 }
432 440
433 if (!vexpress_sysreg_base) { 441 if (!vexpress_sysreg_base) {
434 dev_err(&pdev->dev, "Failed to obtain base address!\n"); 442 dev_err(&pdev->dev, "Failed to obtain base address!\n");