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author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-19 17:05:08 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-19 17:05:08 -0700 |
commit | 24e44913aa746098349370a0f279733c0cadcba7 (patch) | |
tree | 51edd7b13d889653b0400d67dd3e7e91a11db75b /arch/arm/mach-rpc/ecard-loader.S | |
parent | 31cc088a4f5d83481c6f5041bd6eb06115b974af (diff) | |
parent | 7e8a0f10899075ac2665c78c4e49dbaf32bf3346 (diff) |
Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC platform updates from Olof Johansson:
"SoC platform changes. Main theme this merge window:
- The Netx platform (Netx 100/500) platform is removed by Linus
Walleij-- the SoC doesn't have active maintainers with hardware,
and in discussions with the vendor the agreement was that it's OK
to remove.
- Russell King has a series of patches that cleans up and refactors
SA1101 and RiscPC support"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (47 commits)
ARM: stm32: use "depends on" instead of "if" after prompt
ARM: sa1100: convert to common clock framework
ARM: exynos: Cleanup cppcheck shifting warning
ARM: pxa/lubbock: remove lubbock_set_misc_wr() from global view
ARM: exynos: Only build MCPM support if used
arm: add missing include platform-data/atmel.h
ARM: davinci: Use GPIO lookup table for DA850 LEDs
ARM: OMAP2: drop explicit assembler architecture
ARM: use arch_extension directive instead of arch argument
ARM: imx: Switch imx7d to imx-cpufreq-dt for speed-grading
ARM: bcm: Enable PINCTRL for ARCH_BRCMSTB
ARM: bcm: Enable ARCH_HAS_RESET_CONTROLLER for ARCH_BRCMSTB
ARM: riscpc: enable chained scatterlist support
ARM: riscpc: reduce IRQ handling code
ARM: riscpc: move RiscPC assembly files from arch/arm/lib to mach-rpc
ARM: riscpc: parse video information from tagged list
ARM: riscpc: add ecard quirk for Atomwide 3port serial card
MAINTAINERS: mvebu: Add git entry
soc: ti: pm33xx: Add a print while entering RTC only mode with DDR in self-refresh
ARM: OMAP2+: Make some variables static
...
Diffstat (limited to 'arch/arm/mach-rpc/ecard-loader.S')
-rw-r--r-- | arch/arm/mach-rpc/ecard-loader.S | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm/mach-rpc/ecard-loader.S b/arch/arm/mach-rpc/ecard-loader.S new file mode 100644 index 000000000000..eb8ac0412da6 --- /dev/null +++ b/arch/arm/mach-rpc/ecard-loader.S @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * linux/arch/arm/lib/ecard.S + * + * Copyright (C) 1995, 1996 Russell King + * + * 27/03/03 Ian Molton Clean up CONFIG_CPU + */ +#include <linux/linkage.h> +#include <asm/assembler.h> + +#define CPSR2SPSR(rt) \ + mrs rt, cpsr; \ + msr spsr_cxsf, rt + +@ Purpose: call an expansion card loader to read bytes. +@ Proto : char read_loader(int offset, char *card_base, char *loader); +@ Returns: byte read + +ENTRY(ecard_loader_read) + stmfd sp!, {r4 - r12, lr} + mov r11, r1 + mov r1, r0 + CPSR2SPSR(r0) + mov lr, pc + mov pc, r2 + ldmfd sp!, {r4 - r12, pc} + +@ Purpose: call an expansion card loader to reset the card +@ Proto : void read_loader(int card_base, char *loader); +@ Returns: byte read + +ENTRY(ecard_loader_reset) + stmfd sp!, {r4 - r12, lr} + mov r11, r0 + CPSR2SPSR(r0) + mov lr, pc + add pc, r1, #8 + ldmfd sp!, {r4 - r12, pc} + |