diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-05-26 10:43:09 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-05-26 10:43:09 -0700 |
commit | ecf0aa5317b0ad6bb015128a5b763c954fd58708 (patch) | |
tree | 2bf6f0eb2ad2922bc644b72be2a75ac0df6e4403 /arch/arm/mach-omap1/board-osk.c | |
parent | a0439cf4eca05fe562f19ece4b6761852d911adb (diff) | |
parent | 1a23accae82d780b5d5de6254d32c270aeb7f664 (diff) |
Merge tag 'arm-multiplatform-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARMv4T/v5 multiplatform support from Arnd Bergmann:
"This series has been 12 years in the making, it mostly finishes the
work that was started with the founding of Linaro to clean up platform
support in the kernel.
The largest change here is a cleanup of the omap1 platform, which is
the final ARM machine type to get converted to the common-clk
subsystem. All the omap1 specific drivers are now made independent of
the mach/*.h headers to allow the platform to be part of a generic
ARMv4/v5 multiplatform kernel.
The last bit that enables this support is still missing here while we
wait for some last dependencies to make it into the mainline kernel
through other subsystems.
The s3c24xx, ixp4xx, iop32x, ep93xx and dove platforms were all almost
at the point of allowing multiplatform kernels, this work gets
completed here along with a few additional cleanup. At the same time,
the s3c24xx and s3c64xx are now deprecated and expected to get removed
in the future.
The PXA and OMAP1 bits are in a separate branch because of
dependencies. Once both branches are merged, only the three Intel
StrongARM platforms (RiscPC, Footbridge/NetWinder and StrongARM1100)
need separate kernels, and there are no plans to include these"
* tag 'arm-multiplatform-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (61 commits)
ARM: ixp4xx: Consolidate Kconfig fixing issue
ARM: versatile: Add missing of_node_put in dcscb_init
ARM: config: Refresh IXP4xx config after multiplatform
ARM: omap1: add back omap_set_dma_priority() stub
ARM: omap: fix missing declaration warnings
ARM: omap: fix address space warnings from sparse
ARM: spear: remove include/mach/ subdirectory
ARM: davinci: remove include/mach/ subdirectory
ARM: omap2: remove include/mach/ subdirectory
integrator: remove empty ap_init_early()
ARM: s3c: fix include path
MAINTAINERS: omap1: Add Janusz as an additional maintainer
ARM: omap1: htc_herald: fix typos in comments
ARM: OMAP1: fix typos in comments
ARM: OMAP1: clock: Remove noop code
ARM: OMAP1: clock: Remove unused code
ARM: OMAP1: clock: Fix UART rate reporting algorithm
ARM: OMAP1: clock: Fix early UART rate issues
ARM: OMAP1: Prepare for conversion of OMAP1 clocks to CCF
ARM: omap1: fix build with no SoC selected
...
Diffstat (limited to 'arch/arm/mach-omap1/board-osk.c')
-rw-r--r-- | arch/arm/mach-omap1/board-osk.c | 49 |
1 files changed, 38 insertions, 11 deletions
diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c index e18b6f13300e..76684b7a4e87 100644 --- a/arch/arm/mach-omap1/board-osk.c +++ b/arch/arm/mach-omap1/board-osk.c @@ -42,18 +42,17 @@ #include <linux/mfd/tps65010.h> #include <linux/platform_data/gpio-omap.h> #include <linux/platform_data/omap1_bl.h> +#include <linux/soc/ti/omap1-io.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> +#include "tc.h" #include "flash.h" -#include <mach/mux.h> -#include <mach/tc.h> - -#include <mach/hardware.h> -#include <mach/usb.h> - +#include "mux.h" +#include "hardware.h" +#include "usb.h" #include "common.h" /* Name of the GPIO chip used by the OMAP for GPIOs 0..15 */ @@ -153,14 +152,14 @@ static struct resource osk5912_cf_resources[] = { [0] = { .flags = IORESOURCE_IRQ, }, + [1] = { + .flags = IORESOURCE_MEM, + }, }; static struct platform_device osk5912_cf_device = { .name = "omap_cf", .id = -1, - .dev = { - .platform_data = (void *) 2 /* CS2 */, - }, .num_resources = ARRAY_SIZE(osk5912_cf_resources), .resource = osk5912_cf_resources, }; @@ -275,13 +274,41 @@ static void __init osk_init_smc91x(void) omap_writel(l, EMIFS_CCS(1)); } -static void __init osk_init_cf(void) +static void __init osk_init_cf(int seg) { + struct resource *res = &osk5912_cf_resources[1]; + omap_cfg_reg(M7_1610_GPIO62); if ((gpio_request(62, "cf_irq")) < 0) { printk("Error requesting gpio 62 for CF irq\n"); return; } + + switch (seg) { + /* NOTE: CS0 could be configured too ... */ + case 1: + res->start = OMAP_CS1_PHYS; + break; + case 2: + res->start = OMAP_CS2_PHYS; + break; + case 3: + res->start = omap_cs3_phys(); + break; + } + + res->end = res->start + SZ_8K - 1; + osk5912_cf_device.dev.platform_data = (void *)(uintptr_t)seg; + + /* NOTE: better EMIFS setup might support more cards; but the + * TRM only shows how to affect regular flash signals, not their + * CF/PCMCIA variants... + */ + pr_debug("%s: cs%d, previous ccs %08x acs %08x\n", __func__, + seg, omap_readl(EMIFS_CCS(seg)), omap_readl(EMIFS_ACS(seg))); + omap_writel(0x0004a1b3, EMIFS_CCS(seg)); /* synch mode 4 etc */ + omap_writel(0x00000000, EMIFS_ACS(seg)); /* OE hold/setup */ + /* the CF I/O IRQ is really active-low */ irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING); } @@ -580,7 +607,7 @@ static void __init osk_init(void) u32 l; osk_init_smc91x(); - osk_init_cf(); + osk_init_cf(2); /* CS2 */ /* Workaround for wrong CS3 (NOR flash) timing * There are some U-Boot versions out there which configure |