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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-13 10:57:16 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-13 10:57:16 -0800 |
commit | b8edf848e9119bab9d999b9ca80d8520641810f2 (patch) | |
tree | 76517286b247626ed37dda41a4f946f6c34b8bff /arch/arm/mach-tegra/include/mach/uncompress.h | |
parent | db5b0ae00712b5176d7405e7a1dd2bfd6e8f5070 (diff) | |
parent | 3f54db784a6af9a6d53396949cbecf62edbad247 (diff) | |
download | linux-b8edf848e9119bab9d999b9ca80d8520641810f2.tar.bz2 |
Merge tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC multiplatform conversion patches from Olof Johansson:
"Here are more patches in the progression towards multiplatform, sparse
irq conversions in particular.
Tegra has a handful of cleanups and general groundwork, but is not
quite there yet on full enablement.
Platforms that are enabled through this branch are VT8500 and Zynq.
Note that i.MX was converted in one of the earlier cleanup branches as
well (before we started a separate topic for multiplatform). And both
new platforms for this merge window, sunxi and bcm, were merged with
multiplatform support enabled."
Fix up conflicts mostly as per Olof.
* tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits)
ARM: zynq: Remove all unused mach headers
ARM: zynq: add support for ARCH_MULTIPLATFORM
ARM: zynq: make use of debug_ll_io_init()
ARM: zynq: remove TTC early mapping
ARM: tegra: move debug-macro.S to include/debug
ARM: tegra: don't include iomap.h from debug-macro.S
ARM: tegra: decouple uncompress.h and debug-macro.S
ARM: tegra: simplify DEBUG_LL UART selection options
ARM: tegra: select SPARSE_IRQ
ARM: tegra: enhance timer.c to get IO address from device tree
ARM: tegra: enhance timer.c to get IRQ info from device tree
ARM: timer: fix checkpatch warnings
ARM: tegra: add TWD to device tree
ARM: tegra: define DT bindings for and instantiate RTC
ARM: tegra: define DT bindings for and instantiate timer
clocksource/mtu-nomadik: use apb_pclk
clk: ux500: Register mtu apb_pclocks
ARM: plat-nomadik: convert platforms to SPARSE_IRQ
mfd/db8500-prcmu: use the irq_domain_add_simple()
mfd/ab8500-core: use irq_domain_add_simple()
...
Diffstat (limited to 'arch/arm/mach-tegra/include/mach/uncompress.h')
-rw-r--r-- | arch/arm/mach-tegra/include/mach/uncompress.h | 65 |
1 files changed, 4 insertions, 61 deletions
diff --git a/arch/arm/mach-tegra/include/mach/uncompress.h b/arch/arm/mach-tegra/include/mach/uncompress.h index 27725750ca3e..485003f9b636 100644 --- a/arch/arm/mach-tegra/include/mach/uncompress.h +++ b/arch/arm/mach-tegra/include/mach/uncompress.h @@ -29,7 +29,6 @@ #include <linux/serial_reg.h> #include "../../iomap.h" -#include "../../irammap.h" #define BIT(x) (1 << (x)) #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0])) @@ -52,17 +51,6 @@ static inline void flush(void) { } -static inline void save_uart_address(void) -{ - u32 *buf = (u32 *)(TEGRA_IRAM_BASE + TEGRA_IRAM_DEBUG_UART_OFFSET); - - if (uart) { - buf[0] = TEGRA_IRAM_DEBUG_UART_COOKIE; - buf[1] = (u32)uart; - } else - buf[0] = 0; -} - static const struct { u32 base; u32 reset_reg; @@ -139,51 +127,19 @@ int auto_odmdata(void) } #endif -#ifdef CONFIG_TEGRA_DEBUG_UART_AUTO_SCRATCH -int auto_scratch(void) -{ - int i; - - /* - * Look for the first UART that: - * a) Is not in reset. - * b) Is clocked. - * c) Has a 'D' in the scratchpad register. - * - * Note that on Tegra30, the first two conditions are required, since - * if not true, accesses to the UART scratch register will hang. - * Tegra20 doesn't have this issue. - * - * The intent is that the bootloader will tell the kernel which UART - * to use by setting up those conditions. If nothing found, we'll fall - * back to what's specified in TEGRA_DEBUG_UART_BASE. - */ - for (i = 0; i < ARRAY_SIZE(uarts); i++) { - if (!uart_clocked(i)) - continue; - - uart = (volatile u8 *)uarts[i].base; - if (uart[UART_SCR << DEBUG_UART_SHIFT] != 'D') - continue; - - return i; - } - - return -1; -} -#endif - /* * Setup before decompression. This is where we do UART selection for * earlyprintk and init the uart_base register. */ static inline void arch_decomp_setup(void) { - int uart_id, auto_uart_id; + int uart_id; volatile u32 *apb_misc = (volatile u32 *)TEGRA_APB_MISC_BASE; u32 chip, div; -#if defined(CONFIG_TEGRA_DEBUG_UARTA) +#if defined(CONFIG_TEGRA_DEBUG_UART_AUTO_ODMDATA) + uart_id = auto_odmdata(); +#elif defined(CONFIG_TEGRA_DEBUG_UARTA) uart_id = 0; #elif defined(CONFIG_TEGRA_DEBUG_UARTB) uart_id = 1; @@ -193,19 +149,7 @@ static inline void arch_decomp_setup(void) uart_id = 3; #elif defined(CONFIG_TEGRA_DEBUG_UARTE) uart_id = 4; -#else - uart_id = -1; -#endif - -#if defined(CONFIG_TEGRA_DEBUG_UART_AUTO_ODMDATA) - auto_uart_id = auto_odmdata(); -#elif defined(CONFIG_TEGRA_DEBUG_UART_AUTO_SCRATCH) - auto_uart_id = auto_scratch(); -#else - auto_uart_id = -1; #endif - if (auto_uart_id != -1) - uart_id = auto_uart_id; if (uart_id < 0 || uart_id >= ARRAY_SIZE(uarts) || !uart_clocked(uart_id)) @@ -213,7 +157,6 @@ static inline void arch_decomp_setup(void) else uart = (volatile u8 *)uarts[uart_id].base; - save_uart_address(); if (uart == NULL) return; |