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rpi cpu: Add documentation on PDF locations of registers

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* Assist future developers with the location of this data
* No functional change
This commit is contained in:
Alexander von Gluck IV
2012-05-15 08:34:27 -05:00
parent ec3c24ab07
commit 85c4ab42a1
1 changed files with 17 additions and 9 deletions
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headers/private/kernel/arch/arm/bcm2708.h
+17 -9
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@@ -29,38 +29,46 @@
#define SIZE_4K 0x00001000 #define SIZE_4K 0x00001000
/*
* Found in:
* Broadcom BCM2835 ARM Peripherals
* - BCM2835-ARM-Peripherals.pdf
*/
// 1.2.2 notes that peripherals are remapped from 0x7e to 0x20
#define BCM2708_SDRAM_BASE 0x00000000 #define BCM2708_SDRAM_BASE 0x00000000
#define BCM2708_PERI_BASE 0x20000000 #define BCM2708_PERI_BASE 0x20000000
#define SDRAM_BASE BCM2708_SDRAM_BASE #define SDRAM_BASE BCM2708_SDRAM_BASE
#define ST_BASE (BCM2708_PERI_BASE + 0x3000) #define ST_BASE (BCM2708_PERI_BASE + 0x3000)
// System Timer // System Timer, sec 12.0, page 172
#define DMA_BASE (BCM2708_PERI_BASE + 0x7000) #define DMA_BASE (BCM2708_PERI_BASE + 0x7000)
// DMA Controller // DMA Controller, sec 4.2, page 39
#define ARM_BASE (BCM2708_PERI_BASE + 0xB000) #define ARM_BASE (BCM2708_PERI_BASE + 0xB000)
// BCM2708 ARM Control Block // BCM2708 ARM Control Block, sec 7.5, page 112
#define PM_BASE (BCM2708_PERI_BASE + 0x100000) #define PM_BASE (BCM2708_PERI_BASE + 0x100000)
// Power Management, Reset controller and Watchdog registers // Power Management, Reset controller and Watchdog registers
#define GPIO_BASE (BCM2708_PERI_BASE + 0x200000) #define GPIO_BASE (BCM2708_PERI_BASE + 0x200000)
// GPIO // GPIO, sec 6.1, page 90
#define UART0_BASE (BCM2708_PERI_BASE + 0x201000) #define UART0_BASE (BCM2708_PERI_BASE + 0x201000)
// UART 0 // UART 0, sec 13.4, page 177
#define MMCI0_BASE (BCM2708_PERI_BASE + 0x202000) #define MMCI0_BASE (BCM2708_PERI_BASE + 0x202000)
// MMC // MMC
#define UART1_BASE (BCM2708_PERI_BASE + 0x215000) #define UART1_BASE (BCM2708_PERI_BASE + 0x215000)
// UART 1 // UART 1, sec 2.1, page 65
#define EMMC_BASE (BCM2708_PERI_BASE + 0x300000) #define EMMC_BASE (BCM2708_PERI_BASE + 0x300000)
// eMMC interface // eMMC interface, sec 5, page 66
#define SMI_BASE (BCM2708_PERI_BASE + 0x600000) #define SMI_BASE (BCM2708_PERI_BASE + 0x600000)
// SMI Base // SMI Base
#define USB_BASE (BCM2708_PERI_BASE + 0x980000) #define USB_BASE (BCM2708_PERI_BASE + 0x980000)
// USB Controller // USB Controller, 15.2, page 202
#define FB_BASE (BCM2708_PERI_BASE + 0x0000) #define FB_BASE (BCM2708_PERI_BASE + 0x0000)
// Fake frame buffer // Fake frame buffer
#define FB_SIZE SIZE_4K #define FB_SIZE SIZE_4K
// 7.5, page 112
#define ARM_CTRL_BASE (ARM_BASE + 0x000) #define ARM_CTRL_BASE (ARM_BASE + 0x000)
#define ARM_CTRL_IC_BASa (ARM_BASE + 0x200) #define ARM_CTRL_IC_BASa (ARM_BASE + 0x200)
// Interrupt controller // Interrupt controller