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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-19 10:09:22 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-19 10:09:22 -0700 |
| commit | f4cdf7ca9a1fdcca413157df19753f388a5a224e (patch) | |
| tree | 60a31895b2446cd7fa27514e8c2843534a0de0da /arch/powerpc/boot/ebony.c | |
| download | linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.zip | |
Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
Pull media updates from Mauro Carvalho Chehab:
- v4l2-core: added ISP statistics support and per-block validation
- v4l2-core: Allow unknown HDR10 white point and luminance
- New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor
- New codec: Milos: VPU v2.0 codec support
- isp driver: gained support for Dreamchip RPPX1 ISP framework
- vsp1 driver: gained support for RZ/T2H and RZ/N2H
- Novalake driver: gained CVS support for new NVL hardware
- dvb-core: fix feed leak on failed DMX_ADD_PID
- several driver fixes, cleanups and minor improvements
* tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits)
media: ipu-bridge: check all DMI entries when overriding sensor rotation
media: v4l2-async: avoid deleting unlinked ASC entry on link error
media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement
media: intel/ipu6: fix async notifier cleanup leak on parse error
media: staging/ipu7: fix async notifier UAF on probe error path
media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path
media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem()
media: rcar-isp: Fix VSPX reference leaks
media: rcar-isp: Release ISPCORE resources
media: i2c: imx415: Release runtime PM reference on VBLANK error
media: i2c: imx415: Return test pattern write errors
media: renesas: vsp1: Declare index variables in for loop statement
media: renesas: vsp1: Make reset control optional to support platforms without a reset line
media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs
media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs
media: nxp: imx8-isi: Add additional 32-bit RGB format support
media: nxp: imx8-isi: Add 16-bit raw Bayer format support
media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams
media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks
media: nxp: imx8-isi: Correct color map between V4L2 and ISI
...
Diffstat (limited to 'arch/powerpc/boot/ebony.c')
| -rw-r--r-- | arch/powerpc/boot/ebony.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/arch/powerpc/boot/ebony.c b/arch/powerpc/boot/ebony.c new file mode 100644 index 000000000..add2316d3 --- /dev/null +++ b/arch/powerpc/boot/ebony.c @@ -0,0 +1,88 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright 2007 David Gibson, IBM Corporation. + * + * Based on earlier code: + * Copyright (C) Paul Mackerras 1997. + * + * Matt Porter <mporter@kernel.crashing.org> + * Copyright 2002-2005 MontaVista Software Inc. + * + * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net> + * Copyright (c) 2003, 2004 Zultys Technologies + */ +#include <stdarg.h> +#include <stddef.h> +#include "types.h" +#include "elf.h" +#include "string.h" +#include "stdio.h" +#include "page.h" +#include "ops.h" +#include "reg.h" +#include "io.h" +#include "dcr.h" +#include "4xx.h" +#include "44x.h" + +static u8 *ebony_mac0, *ebony_mac1; + +#define EBONY_FPGA_PATH "/plb/opb/ebc/fpga" +#define EBONY_FPGA_FLASH_SEL 0x01 +#define EBONY_SMALL_FLASH_PATH "/plb/opb/ebc/small-flash" + +static void ebony_flashsel_fixup(void) +{ + void *devp; + u32 reg[3] = {0x0, 0x0, 0x80000}; + u8 *fpga; + u8 fpga_reg0 = 0x0; + + devp = finddevice(EBONY_FPGA_PATH); + if (!devp) + fatal("Couldn't locate FPGA node %s\n\r", EBONY_FPGA_PATH); + + if (getprop(devp, "virtual-reg", &fpga, sizeof(fpga)) != sizeof(fpga)) + fatal("%s has missing or invalid virtual-reg property\n\r", + EBONY_FPGA_PATH); + + fpga_reg0 = in_8(fpga); + + devp = finddevice(EBONY_SMALL_FLASH_PATH); + if (!devp) + fatal("Couldn't locate small flash node %s\n\r", + EBONY_SMALL_FLASH_PATH); + + if (getprop(devp, "reg", reg, sizeof(reg)) != sizeof(reg)) + fatal("%s has reg property of unexpected size\n\r", + EBONY_SMALL_FLASH_PATH); + + /* Invert address bit 14 (IBM-endian) if FLASH_SEL fpga bit is set */ + if (fpga_reg0 & EBONY_FPGA_FLASH_SEL) + reg[1] ^= 0x80000; + + setprop(devp, "reg", reg, sizeof(reg)); +} + +static void ebony_fixups(void) +{ + // FIXME: sysclk should be derived by reading the FPGA registers + unsigned long sysclk = 33000000; + + ibm440gp_fixup_clocks(sysclk, 6 * 1843200); + ibm4xx_sdram_fixup_memsize(); + dt_fixup_mac_address_by_alias("ethernet0", ebony_mac0); + dt_fixup_mac_address_by_alias("ethernet1", ebony_mac1); + ibm4xx_fixup_ebc_ranges("/plb/opb/ebc"); + ebony_flashsel_fixup(); +} + +void ebony_init(void *mac0, void *mac1) +{ + platform_ops.fixups = ebony_fixups; + platform_ops.exit = ibm44x_dbcr_reset; + ebony_mac0 = mac0; + ebony_mac1 = mac1; + fdt_init(_dtb_start); + serial_console_init(); +} |
