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author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-22 00:40:55 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-22 00:40:55 +0200 |
commit | 85b375a613085b78531ec86369a51c2f3b922f95 (patch) | |
tree | 716437d598de92bbd7acaf24622e9a7d74fc209a /include/asm-arm/arch-ns9xxx/uncompress.h | |
parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/min... (diff) | |
parent | Merge branch 'merge-fixes' into devel (diff) | |
download | linux-85b375a613085b78531ec86369a51c2f3b922f95.tar.xz linux-85b375a613085b78531ec86369a51c2f3b922f95.zip |
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (212 commits)
[ARM] pxa: Phycore pcm-990-specific code for the PXA270 Quick Capture driver
[ARM] pxa: V4L2 soc_camera driver for PXA270
[ARM] pxa: restrict availability of pxa2xx PCMCIA drivers
[ARM] 5005/1: BAST: Fix kset_name initialiser
[ARM] 4967/1: Adds functions to set clkout rate for Samsung S3C2410
[ARM] 4988/1: Add GPIO lib support to the EP93xx
[ARM] Add initial sparsemem support
[ARM] pxa: initialise PXA devices before platform init code
[ARM] 5002/1: tosa: add two more leds
[ARM] 5004/1: Tosa: make several unreferenced structures static.
[ARM] 5003/1: Shut up sparse warnings
[ARM] 4977/2: soc - pxa2xx-ac97 - Add missing clk_enable()
[ARM] 4976/1: zylonite: Configure GPIO for WM9713 IRQ line
[ARM] 4974/1: Drop unused leds-tosa.
[ARM] 4973/1: Tosa: use leds-gpio driver.
[ARM] 4972/1: Tosa: convert scoop GPIOs usage to generic gpio code
[ARM] 4971/1: pxaficp_ir: provide startup and shutdown hooks
[ARM] pxa: lubbock: move mis-placed SPI info
[ARM] 4970/1: tosa: correct gpio used for wake up.
[ARM] 4966/1: magician: add MFP pin configuration
...
Diffstat (limited to 'include/asm-arm/arch-ns9xxx/uncompress.h')
-rw-r--r-- | include/asm-arm/arch-ns9xxx/uncompress.h | 143 |
1 files changed, 136 insertions, 7 deletions
diff --git a/include/asm-arm/arch-ns9xxx/uncompress.h b/include/asm-arm/arch-ns9xxx/uncompress.h index 961ca7dc9954..71066baceab7 100644 --- a/include/asm-arm/arch-ns9xxx/uncompress.h +++ b/include/asm-arm/arch-ns9xxx/uncompress.h @@ -11,20 +11,149 @@ #ifndef __ASM_ARCH_UNCOMPRESS_H #define __ASM_ARCH_UNCOMPRESS_H -static void putc(char c) +#include <asm/io.h> + +#define __REG(x) ((void __iomem __force *)(x)) + +static void putc_dummy(char c, void __iomem *base) { - volatile u8 *base = (volatile u8 *)0x40000000; - int t = 0x10000; + /* nothing */ +} +static void putc_ns9360(char c, void __iomem *base) +{ + static int t = 0x10000; + do { + if (t) + --t; + + if (__raw_readl(base + 8) & (1 << 3)) { + __raw_writeb(c, base + 16); + t = 0x10000; + break; + } + } while (t); +} + +static void putc_a9m9750dev(char c, void __iomem *base) +{ + static int t = 0x10000; + do { + if (t) + --t; + + if (__raw_readb(base + 5) & (1 << 5)) { + __raw_writeb(c, base); + t = 0x10000; + break; + } + } while (t); + +} + +static void putc_ns921x(char c, void __iomem *base) +{ + static int t = 0x10000; do { - if (base[5] & 0x20) { - base[0] = c; + if (t) + --t; + + if (!(__raw_readl(base) & (1 << 11))) { + __raw_writeb(c, base + 0x0028); + t = 0x10000; break; } - } while (--t); + } while (t); } -#define arch_decomp_setup() +#define MSCS __REG(0xA0900184) + +#define NS9360_UARTA __REG(0x90200040) +#define NS9360_UARTB __REG(0x90200000) +#define NS9360_UARTC __REG(0x90300000) +#define NS9360_UARTD __REG(0x90300040) + +#define NS9360_UART_ENABLED(base) \ + (__raw_readl(NS9360_UARTA) & (1 << 31)) + +#define A9M9750DEV_UARTA __REG(0x40000000) + +#define NS921XSYS_CLOCK __REG(0xa090017c) +#define NS921X_UARTA __REG(0x90010000) +#define NS921X_UARTB __REG(0x90018000) +#define NS921X_UARTC __REG(0x90020000) +#define NS921X_UARTD __REG(0x90028000) + +#define NS921X_UART_ENABLED(base) \ + (__raw_readl((base) + 0x1000) & (1 << 29)) + +static void autodetect(void (**putc)(char, void __iomem *), void __iomem **base) +{ + if (((__raw_readl(MSCS) >> 16) & 0xfe) == 0x00) { + /* ns9360 or ns9750 */ + if (NS9360_UART_ENABLED(NS9360_UARTA)) { + *putc = putc_ns9360; + *base = NS9360_UARTA; + return; + } else if (NS9360_UART_ENABLED(NS9360_UARTB)) { + *putc = putc_ns9360; + *base = NS9360_UARTB; + return; + } else if (NS9360_UART_ENABLED(NS9360_UARTC)) { + *putc = putc_ns9360; + *base = NS9360_UARTC; + return; + } else if (NS9360_UART_ENABLED(NS9360_UARTD)) { + *putc = putc_ns9360; + *base = NS9360_UARTD; + return; + } else if (__raw_readl(__REG(0xa09001f4)) == 0xfffff001) { + *putc = putc_a9m9750dev; + *base = A9M9750DEV_UARTA; + return; + } + } else if (((__raw_readl(MSCS) >> 16) & 0xfe) == 0x02) { + /* ns921x */ + u32 clock = __raw_readl(NS921XSYS_CLOCK); + + if ((clock & (1 << 1)) && + NS921X_UART_ENABLED(NS921X_UARTA)) { + *putc = putc_ns921x; + *base = NS921X_UARTA; + return; + } else if ((clock & (1 << 2)) && + NS921X_UART_ENABLED(NS921X_UARTB)) { + *putc = putc_ns921x; + *base = NS921X_UARTB; + return; + } else if ((clock & (1 << 3)) && + NS921X_UART_ENABLED(NS921X_UARTC)) { + *putc = putc_ns921x; + *base = NS921X_UARTC; + return; + } else if ((clock & (1 << 4)) && + NS921X_UART_ENABLED(NS921X_UARTD)) { + *putc = putc_ns921x; + *base = NS921X_UARTD; + return; + } + } + + *putc = putc_dummy; +} + +void (*myputc)(char, void __iomem *); +void __iomem *base; + +static void putc(char c) +{ + myputc(c, base); +} + +static void arch_decomp_setup(void) +{ + autodetect(&myputc, &base); +} #define arch_decomp_wdog() static void flush(void) |