Merge tag 'samsung-soc-s3c-5.10' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/soc

Samsung S3C24xx and S3C64xx machine code cleanup for v5.10

Big cleanup for the Samsung S3C24xx and S3C64xx platforms, although it
also touches files shared with S5Pv210 and Exynos.  This is mostly Arnd
Bergmann work which Krzysztof Kozlowski took over, rebased and polished.

The goal is to cleanup, merge and finally make the Samsung S3C24xx and
S3C64xx architectures multiplatform.  The multiplatform did not happen
yet here - just cleaning up and merging into one arch/arm/mach-s3c
directory.  However this is step forward for multiplatform or at least
to keep this code still maintainable.

This pulls also branch with changes for Samsung SoC sound drivers from
broonie/sound because the cleanups there were part of this series and
all further patches depend on them.

* tag 'samsung-soc-s3c-5.10' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: (62 commits)
  ARM: s3c: Avoid naming clash of S3C24xx and S3C64xx timer setup
  ARM: s3c: Cleanup from old plat-samsung include
  ARM: s3c: make headers local if possible
  ARM: s3c: move into a common directory
  ARM: s3c24xx: stop including mach/hardware.h from mach/io.h
  cpufreq: s3c24xx: move low-level clk reg access into platform code
  cpufreq: s3c2412: use global s3c2412_cpufreq_setrefresh
  ARM: s3c: remove cpufreq header dependencies
  cpufreq: s3c24xx: split out registers
  fbdev: s3c2410fb: remove mach header dependency
  ARM: s3c24xx: bast: avoid irq_desc array usage
  ARM: s3c24xx: spi: avoid hardcoding fiq number in driver
  ARM: s3c24xx: include mach/irqs.h where needed
  ARM: s3c24xx: move s3cmci pinctrl handling into board files
  ARM: s3c24xx: move iis pinctrl config into boards
  ARM: s3c24xx: move spi fiq handler into platform
  ARM: s3c: adc: move header to linux/soc/samsung
  ARM: s3c24xx: move irqchip driver back into platform
  ARM: s3c24xx: move regs-spi.h into spi driver
  ARM: s3c64xx: remove mach/hardware.h
  ...

Link: https://lore.kernel.org/r/20200831154751.7551-1-krzk@kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>

1 files changed, 194 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c/bast.h b/arch/arm/mach-s3c/bast.h
new file mode 100644
index 000000000000..a7726f93f5eb
--- /dev/null
+++ b/arch/arm/mach-s3c/bast.h
@@ -0,0 +1,194 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2003-2004 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * BAST - CPLD control constants
+ * BAST - IRQ Number definitions
+ * BAST - Memory map definitions
+ */
+
+#ifndef __MACH_S3C24XX_BAST_H
+#define __MACH_S3C24XX_BAST_H __FILE__
+
+/* CTRL1 - Audio LR routing */
+
+#define BAST_CPLD_CTRL1_LRCOFF		(0x00)
+#define BAST_CPLD_CTRL1_LRCADC		(0x01)
+#define BAST_CPLD_CTRL1_LRCDAC		(0x02)
+#define BAST_CPLD_CTRL1_LRCARM		(0x03)
+#define BAST_CPLD_CTRL1_LRMASK		(0x03)
+
+/* CTRL2 - NAND WP control, IDE Reset assert/check */
+
+#define BAST_CPLD_CTRL2_WNAND		(0x04)
+#define BAST_CPLD_CTLR2_IDERST		(0x08)
+
+/* CTRL3 - rom write control, CPLD identity */
+
+#define BAST_CPLD_CTRL3_IDMASK		(0x0e)
+#define BAST_CPLD_CTRL3_ROMWEN		(0x01)
+
+/* CTRL4 - 8bit LCD interface control/status */
+
+#define BAST_CPLD_CTRL4_LLAT		(0x01)
+#define BAST_CPLD_CTRL4_LCDRW		(0x02)
+#define BAST_CPLD_CTRL4_LCDCMD		(0x04)
+#define BAST_CPLD_CTRL4_LCDE2		(0x01)
+
+/* CTRL5 - DMA routing */
+
+#define BAST_CPLD_DMA0_PRIIDE		(0)
+#define BAST_CPLD_DMA0_SECIDE		(1)
+#define BAST_CPLD_DMA0_ISA15		(2)
+#define BAST_CPLD_DMA0_ISA36		(3)
+
+#define BAST_CPLD_DMA1_PRIIDE		(0 << 2)
+#define BAST_CPLD_DMA1_SECIDE		(1 << 2)
+#define BAST_CPLD_DMA1_ISA15		(2 << 2)
+#define BAST_CPLD_DMA1_ISA36		(3 << 2)
+
+/* irq numbers to onboard peripherals */
+
+#define BAST_IRQ_USBOC			IRQ_EINT18
+#define BAST_IRQ_IDE0			IRQ_EINT16
+#define BAST_IRQ_IDE1			IRQ_EINT17
+#define BAST_IRQ_PCSERIAL1		IRQ_EINT15
+#define BAST_IRQ_PCSERIAL2		IRQ_EINT14
+#define BAST_IRQ_PCPARALLEL		IRQ_EINT13
+#define BAST_IRQ_ASIX			IRQ_EINT11
+#define BAST_IRQ_DM9000			IRQ_EINT10
+#define BAST_IRQ_ISA			IRQ_EINT9
+#define BAST_IRQ_SMALERT		IRQ_EINT8
+
+/* map */
+
+/*
+ * ok, we've used up to 0x13000000, now we need to find space for the
+ * peripherals that live in the nGCS[x] areas, which are quite numerous
+ * in their space. We also have the board's CPLD to find register space
+ * for.
+ */
+
+#define BAST_IOADDR(x)			(S3C2410_ADDR((x) + 0x01300000))
+
+/* we put the CPLD registers next, to get them out of the way */
+
+#define BAST_VA_CTRL1			BAST_IOADDR(0x00000000)
+#define BAST_PA_CTRL1			(S3C2410_CS5 | 0x7800000)
+
+#define BAST_VA_CTRL2			BAST_IOADDR(0x00100000)
+#define BAST_PA_CTRL2			(S3C2410_CS1 | 0x6000000)
+
+#define BAST_VA_CTRL3			BAST_IOADDR(0x00200000)
+#define BAST_PA_CTRL3			(S3C2410_CS1 | 0x6800000)
+
+#define BAST_VA_CTRL4			BAST_IOADDR(0x00300000)
+#define BAST_PA_CTRL4			(S3C2410_CS1 | 0x7000000)
+
+/* next, we have the PC104 ISA interrupt registers */
+
+#define BAST_PA_PC104_IRQREQ		(S3C2410_CS5 | 0x6000000)
+#define BAST_VA_PC104_IRQREQ		BAST_IOADDR(0x00400000)
+
+#define BAST_PA_PC104_IRQRAW		(S3C2410_CS5 | 0x6800000)
+#define BAST_VA_PC104_IRQRAW		BAST_IOADDR(0x00500000)
+
+#define BAST_PA_PC104_IRQMASK		(S3C2410_CS5 | 0x7000000)
+#define BAST_VA_PC104_IRQMASK		BAST_IOADDR(0x00600000)
+
+#define BAST_PA_LCD_RCMD1		(0x8800000)
+#define BAST_VA_LCD_RCMD1		BAST_IOADDR(0x00700000)
+
+#define BAST_PA_LCD_WCMD1		(0x8000000)
+#define BAST_VA_LCD_WCMD1		BAST_IOADDR(0x00800000)
+
+#define BAST_PA_LCD_RDATA1		(0x9800000)
+#define BAST_VA_LCD_RDATA1		BAST_IOADDR(0x00900000)
+
+#define BAST_PA_LCD_WDATA1		(0x9000000)
+#define BAST_VA_LCD_WDATA1		BAST_IOADDR(0x00A00000)
+
+#define BAST_PA_LCD_RCMD2		(0xA800000)
+#define BAST_VA_LCD_RCMD2		BAST_IOADDR(0x00B00000)
+
+#define BAST_PA_LCD_WCMD2		(0xA000000)
+#define BAST_VA_LCD_WCMD2		BAST_IOADDR(0x00C00000)
+
+#define BAST_PA_LCD_RDATA2		(0xB800000)
+#define BAST_VA_LCD_RDATA2		BAST_IOADDR(0x00D00000)
+
+#define BAST_PA_LCD_WDATA2		(0xB000000)
+#define BAST_VA_LCD_WDATA2		BAST_IOADDR(0x00E00000)
+
+
+/*
+ * 0xE0000000 contains the IO space that is split by speed and
+ * whether the access is for 8 or 16bit IO... this ensures that
+ * the correct access is made
+ *
+ * 0x10000000 of space, partitioned as so:
+ *
+ * 0x00000000 to 0x04000000  8bit,  slow
+ * 0x04000000 to 0x08000000  16bit, slow
+ * 0x08000000 to 0x0C000000  16bit, net
+ * 0x0C000000 to 0x10000000  16bit, fast
+ *
+ * each of these spaces has the following in:
+ *
+ * 0x00000000 to 0x01000000 16MB ISA IO space
+ * 0x01000000 to 0x02000000 16MB ISA memory space
+ * 0x02000000 to 0x02100000 1MB  IDE primary channel
+ * 0x02100000 to 0x02200000 1MB  IDE primary channel aux
+ * 0x02200000 to 0x02400000 1MB  IDE secondary channel
+ * 0x02300000 to 0x02400000 1MB  IDE secondary channel aux
+ * 0x02400000 to 0x02500000 1MB  ASIX ethernet controller
+ * 0x02500000 to 0x02600000 1MB  Davicom DM9000 ethernet controller
+ * 0x02600000 to 0x02700000 1MB  PC SuperIO controller
+ *
+ * the phyiscal layout of the zones are:
+ *  nGCS2 - 8bit, slow
+ *  nGCS3 - 16bit, slow
+ *  nGCS4 - 16bit, net
+ *  nGCS5 - 16bit, fast
+ */
+
+#define BAST_VA_MULTISPACE		(0xE0000000)
+
+#define BAST_VA_ISAIO			(BAST_VA_MULTISPACE + 0x00000000)
+#define BAST_VA_ISAMEM			(BAST_VA_MULTISPACE + 0x01000000)
+#define BAST_VA_IDEPRI			(BAST_VA_MULTISPACE + 0x02000000)
+#define BAST_VA_IDEPRIAUX		(BAST_VA_MULTISPACE + 0x02100000)
+#define BAST_VA_IDESEC			(BAST_VA_MULTISPACE + 0x02200000)
+#define BAST_VA_IDESECAUX		(BAST_VA_MULTISPACE + 0x02300000)
+#define BAST_VA_ASIXNET			(BAST_VA_MULTISPACE + 0x02400000)
+#define BAST_VA_DM9000			(BAST_VA_MULTISPACE + 0x02500000)
+#define BAST_VA_SUPERIO			(BAST_VA_MULTISPACE + 0x02600000)
+
+#define BAST_VAM_CS2			(0x00000000)
+#define BAST_VAM_CS3			(0x04000000)
+#define BAST_VAM_CS4			(0x08000000)
+#define BAST_VAM_CS5			(0x0C000000)
+
+/* physical offset addresses for the peripherals */
+
+#define BAST_PA_ISAIO			(0x00000000)
+#define BAST_PA_ASIXNET			(0x01000000)
+#define BAST_PA_SUPERIO			(0x01800000)
+#define BAST_PA_IDEPRI			(0x02000000)
+#define BAST_PA_IDEPRIAUX		(0x02800000)
+#define BAST_PA_IDESEC			(0x03000000)
+#define BAST_PA_IDESECAUX		(0x03800000)
+#define BAST_PA_ISAMEM			(0x04000000)
+#define BAST_PA_DM9000			(0x05000000)
+
+/* some configurations for the peripherals */
+
+#define BAST_PCSIO			(BAST_VA_SUPERIO + BAST_VAM_CS2)
+
+#define BAST_ASIXNET_CS			BAST_VAM_CS5
+#define BAST_DM9000_CS			BAST_VAM_CS4
+
+#define BAST_IDE_CS	S3C2410_CS5
+
+#endif /* __MACH_S3C24XX_BAST_H */