summaryrefslogtreecommitdiff
path: root/include/dt-bindings/clock/jz4740-cgu.h
blob: 43153d3e9bd267904a6f93e11a27769338fae1be (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
/*
 * This header provides clock numbers for the ingenic,jz4740-cgu DT binding.
 *
 * They are roughly ordered as:
 *   - external clocks
 *   - PLLs
 *   - muxes/dividers in the order they appear in the jz4740 programmers manual
 *   - gates in order of their bit in the CLKGR* registers
 */

#ifndef __DT_BINDINGS_CLOCK_JZ4740_CGU_H__
#define __DT_BINDINGS_CLOCK_JZ4740_CGU_H__

#define JZ4740_CLK_EXT		0
#define JZ4740_CLK_RTC		1
#define JZ4740_CLK_PLL		2
#define JZ4740_CLK_PLL_HALF	3
#define JZ4740_CLK_CCLK		4
#define JZ4740_CLK_HCLK		5
#define JZ4740_CLK_PCLK		6
#define JZ4740_CLK_MCLK		7
#define JZ4740_CLK_LCD		8
#define JZ4740_CLK_LCD_PCLK	9
#define JZ4740_CLK_I2S		10
#define JZ4740_CLK_SPI		11
#define JZ4740_CLK_MMC		12
#define JZ4740_CLK_UHC		13
#define JZ4740_CLK_UDC		14
#define JZ4740_CLK_UART0	15
#define JZ4740_CLK_UART1	16
#define JZ4740_CLK_DMA		17
#define JZ4740_CLK_IPU		18
#define JZ4740_CLK_ADC		19
#define JZ4740_CLK_I2C		20
#define JZ4740_CLK_AIC		21

#endif /* __DT_BINDINGS_CLOCK_JZ4740_CGU_H__ */
("x86/efi: Only map RAM into EFI page tables if in mixed-mode") stopped creating 1:1 mappings for all RAM, when running in native 64-bit mode. It turns out though that there are 64-bit EFI implementations in the wild (this particular problem has been reported on a Lenovo Yoga 710-11IKB), which still make use of the first physical page for their own private use, even though they explicitly mark it EFI_CONVENTIONAL_MEMORY in the memory map. In case there is no mapping for this particular frame in the EFI pagetables, as soon as firmware tries to make use of it, a triple fault occurs and the system reboots (in case of the Yoga 710-11IKB this is very early during bootup). Fix that by always mapping the first page of physical memory into the EFI pagetables. We're free to hand this page to the BIOS, as trim_bios_range() will reserve the first page and isolate it away from memory allocators anyway. Note that just reverting 129766708 alone is not enough on v4.9-rc1+ to fix the regression on affected hardware, as this commit: ab72a27da ("x86/efi: Consolidate region mapping logic") later made the first physical frame not to be mapped anyway. Reported-by: Hanka Pavlikova <hanka@ucw.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Borislav Petkov <bp@suse.de> Cc: Laura Abbott <labbott@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vojtech Pavlik <vojtech@ucw.cz> Cc: Waiman Long <waiman.long@hpe.com> Cc: linux-efi@vger.kernel.org Cc: stable@kernel.org # v4.8+ Fixes: 129766708 ("x86/efi: Only map RAM into EFI page tables if in mixed-mode") Link: http://lkml.kernel.org/r/20170127222552.22336-1-matt@codeblueprint.co.uk [ Tidied up the changelog and the comment. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/util/cpumap.c')