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orion5x: fix relocation-incompatible code

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Signed-off-by: Albert Aribaud <albert.aribaud@free.fr>
This commit is contained in:
Albert Aribaud 2010-09-23 21:49:23 +02:00 committed by Wolfgang Denk
parent da90d4ce38
commit d778a2fbb3
3 changed files with 56 additions and 33 deletions
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78
arch/arm/cpu/arm926ejs/orion5x/cpu.c
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@ -77,6 +77,17 @@ unsigned int orion5x_winctrl_calcsize(unsigned int sizeval)
*
* If remap function not used, remap_lo must be set as base
*
* NOTES:
*
* 1) in order to avoid windows with inconsistent control and base values
* (which could prevent access to BOOTCS and hence execution from FLASH)
* always disable window before writing the base value then reenable it
* by writing the control value.
*
* 2) in order to avoid losing access to BOOTCS when disabling window 7,
* first configure window 6 for BOOTCS, then configure window 7 for BOOTCS,
* then configure windows 6 for its own target.
*
* Reference Documentation:
* Mbus-L to Mbus Bridge Registers Configuration.
* (Sec 25.1 and 25.3 of Datasheet)
@ -86,57 +97,64 @@ int orion5x_config_adr_windows(void)
struct orion5x_win_registers *winregs =
(struct orion5x_win_registers *)ORION5X_CPU_WIN_BASE;
/* Window 0: PCIE MEM address space */
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_PCIE_MEM,
ORION5X_TARGET_PCIE, ORION5X_ATTR_PCIE_MEM,
ORION5X_WIN_ENABLE), &winregs[0].ctrl);
/* Disable window 0, configure it for its intended target, enable it. */
writel(0, &winregs[0].ctrl);
writel(ORION5X_ADR_PCIE_MEM, &winregs[0].base);
writel(ORION5X_ADR_PCIE_MEM_REMAP_LO, &winregs[0].remap_lo);
writel(ORION5X_ADR_PCIE_MEM_REMAP_HI, &winregs[0].remap_hi);
/* Window 1: PCIE IO address space */
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_PCIE_IO,
ORION5X_TARGET_PCIE, ORION5X_ATTR_PCIE_IO,
ORION5X_WIN_ENABLE), &winregs[1].ctrl);
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_PCIE_MEM,
ORION5X_TARGET_PCIE, ORION5X_ATTR_PCIE_MEM,
ORION5X_WIN_ENABLE), &winregs[0].ctrl);
/* Disable window 1, configure it for its intended target, enable it. */
writel(0, &winregs[1].ctrl);
writel(ORION5X_ADR_PCIE_IO, &winregs[1].base);
writel(ORION5X_ADR_PCIE_IO_REMAP_LO, &winregs[1].remap_lo);
writel(ORION5X_ADR_PCIE_IO_REMAP_HI, &winregs[1].remap_hi);
/* Window 2: PCI MEM address space */
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_PCIE_IO,
ORION5X_TARGET_PCIE, ORION5X_ATTR_PCIE_IO,
ORION5X_WIN_ENABLE), &winregs[1].ctrl);
/* Disable window 2, configure it for its intended target, enable it. */
writel(0, &winregs[2].ctrl);
writel(ORION5X_ADR_PCI_MEM, &winregs[2].base);
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_PCI_MEM,
ORION5X_TARGET_PCI, ORION5X_ATTR_PCI_MEM,
ORION5X_WIN_ENABLE), &winregs[2].ctrl);
writel(ORION5X_ADR_PCI_MEM, &winregs[2].base);
/* Window 3: PCI IO address space */
/* Disable window 3, configure it for its intended target, enable it. */
writel(0, &winregs[3].ctrl);
writel(ORION5X_ADR_PCI_IO, &winregs[3].base);
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_PCI_IO,
ORION5X_TARGET_PCI, ORION5X_ATTR_PCI_IO,
ORION5X_WIN_ENABLE), &winregs[3].ctrl);
writel(ORION5X_ADR_PCI_IO, &winregs[3].base);
/* Window 4: DEV_CS0 address space */
/* Disable window 4, configure it for its intended target, enable it. */
writel(0, &winregs[4].ctrl);
writel(ORION5X_ADR_DEV_CS0, &winregs[4].base);
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_DEV_CS0,
ORION5X_TARGET_DEVICE, ORION5X_ATTR_DEV_CS0,
ORION5X_WIN_ENABLE), &winregs[4].ctrl);
writel(ORION5X_ADR_DEV_CS0, &winregs[4].base);
/* Window 5: DEV_CS1 address space */
/* Disable window 5, configure it for its intended target, enable it. */
writel(0, &winregs[5].ctrl);
writel(ORION5X_ADR_DEV_CS1, &winregs[5].base);
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_DEV_CS1,
ORION5X_TARGET_DEVICE, ORION5X_ATTR_DEV_CS1,
ORION5X_WIN_ENABLE), &winregs[5].ctrl);
writel(ORION5X_ADR_DEV_CS1, &winregs[5].base);
/* Window 6: DEV_CS2 address space */
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_DEV_CS2,
ORION5X_TARGET_DEVICE, ORION5X_ATTR_DEV_CS2,
/* Disable window 6, configure it for FLASH, enable it. */
writel(0, &winregs[6].ctrl);
writel(ORION5X_ADR_BOOTROM, &winregs[6].base);
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_BOOTROM,
ORION5X_TARGET_DEVICE, ORION5X_ATTR_BOOTROM,
ORION5X_WIN_ENABLE), &winregs[6].ctrl);
writel(ORION5X_ADR_DEV_CS2, &winregs[6].base);
/* Window 7: BOOT Memory address space */
/* Disable window 7, configure it for FLASH, enable it. */
writel(0, &winregs[7].ctrl);
writel(ORION5X_ADR_BOOTROM, &winregs[7].base);
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_BOOTROM,
ORION5X_TARGET_DEVICE, ORION5X_ATTR_BOOTROM,
ORION5X_WIN_ENABLE), &winregs[7].ctrl);
writel(ORION5X_ADR_BOOTROM, &winregs[7].base);
/* Disable window 6, configure it for its intended target, enable it. */
writel(0, &winregs[6].ctrl);
writel(ORION5X_ADR_DEV_CS2, &winregs[6].base);
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_DEV_CS2,
ORION5X_TARGET_DEVICE, ORION5X_ATTR_DEV_CS2,
ORION5X_WIN_ENABLE), &winregs[6].ctrl);
return 0;
}
@ -265,6 +283,8 @@ int arch_misc_init(void)
writel(ORION5X_MPP16_23, ORION5X_MPP_BASE+0x50);
writel(ORION5X_GPIO_OUT_ENABLE, ORION5X_GPIO_BASE+0x04);
/* initialize timer */
timer_init_r();
return 0;
}
#endif /* CONFIG_ARCH_MISC_INIT */

10
arch/arm/cpu/arm926ejs/orion5x/timer.c
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@ -173,9 +173,11 @@ int timer_init(void)
cntmrctrl |= CTCR_ARM_TIMER_EN(UBOOT_CNTR);
cntmrctrl |= CTCR_ARM_TIMER_AUTO_EN(UBOOT_CNTR);
writel(cntmrctrl, CNTMR_CTRL_REG);
/* init the timestamp and lastdec value */
reset_timer_masked();
return 0;
}
void timer_init_r(void)
{
/* init the timestamp and lastdec value */
reset_timer_masked();
}

1
arch/arm/include/asm/arch-orion5x/cpu.h
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@ -255,5 +255,6 @@ void reset_cpu(unsigned long ignored);
u32 orion5x_device_id(void);
u32 orion5x_device_rev(void);
unsigned int orion5x_winctrl_calcsize(unsigned int sizeval);
void timer_init_r(void);
#endif /* __ASSEMBLY__ */
#endif /* _ORION5X_CPU_H */