ARM: SPEAr3xx: Add device-tree support to SPEAr3xx architecture

This patch adds a generic target for SPEAr3xx machines that can be configured
via the device-tree. Currently the following devices are supported via the
devicetree:

- VIC interrupts
- PL011 UART
- PL061 GPIO
- PL110 CLCD
- SP805 WDT
- Synopsys DW I2C
- Synopsys DW ethernet
- ST FSMC-NAND
- ST SPEAR-SMI
- ST SPEAR-KEYBOARD
- ST SPEAR-RTC
- ARASAN SDHCI-SPEAR
- SPEAR-EHCI
- SPEAR-OHCI

Other peripheral devices will follow in later patches.

This also removes IO_ADDRESS macro and creates 16 MB static mappings instead of
4K for individual peripherals. This is done to have efficient TLB lookup for any
I/O windows that are located closely together. ioremap() on this range will
return this mapping only instead of creating another.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>

1 files changed, 8 insertions, 21 deletions

diff --git a/arch/arm/mach-spear3xx/include/mach/generic.h b/arch/arm/mach-spear3xx/include/mach/generic.h
index 14276e5a98d2..84ee2bbf1338 100644
--- a/arch/arm/mach-spear3xx/include/mach/generic.h
+++ b/arch/arm/mach-spear3xx/include/mach/generic.h
@@ -31,16 +31,13 @@
 #define SPEAR_GPT0_CHAN1_IRQ    SPEAR3XX_IRQ_CPU_GPT1_2
 
 /* Add spear3xx family device structure declarations here */
-extern struct amba_device spear3xx_gpio_device;
-extern struct amba_device spear3xx_uart_device;
 extern struct sys_timer spear3xx_timer;
+extern struct pl022_ssp_controller pl022_plat_data;
 
 /* Add spear3xx family function declarations here */
-void __init spear3xx_clk_init(void);
 void __init spear_setup_timer(void);
 void __init spear3xx_map_io(void);
-void __init spear3xx_init_irq(void);
-void __init spear3xx_init(void);
+void __init spear3xx_dt_init_irq(void);
 
 void spear_restart(char, const char *);
 
@@ -99,9 +96,6 @@ extern struct pmx_dev spear3xx_pmx_plgpio_45_46_49_50;
 
 /* spear300 declarations */
 #ifdef CONFIG_MACH_SPEAR300
-/* Add spear300 machine device structure declarations here */
-extern struct amba_device spear300_gpio1_device;
-
 /* pad mux modes */
 extern struct pmx_mode spear300_nand_mode;
 extern struct pmx_mode spear300_nor_mode;
@@ -133,16 +127,13 @@ extern struct pmx_dev spear300_pmx_telecom_sdhci_4bit;
 extern struct pmx_dev spear300_pmx_telecom_sdhci_8bit;
 extern struct pmx_dev spear300_pmx_gpio1;
 
-/* Add spear300 machine function declarations here */
-void __init spear300_init(struct pmx_mode *pmx_mode, struct pmx_dev **pmx_devs,
-                u8 pmx_dev_count);
+/* Add spear300 machine declarations here */
+void __init spear300_clk_init(void);
 
 #endif /* CONFIG_MACH_SPEAR300 */
 
 /* spear310 declarations */
 #ifdef CONFIG_MACH_SPEAR310
-/* Add spear310 machine device structure declarations here */
-
 /* pad mux devices */
 extern struct pmx_dev spear310_pmx_emi_cs_0_1_4_5;
 extern struct pmx_dev spear310_pmx_emi_cs_2_3;
@@ -153,16 +144,13 @@ extern struct pmx_dev spear310_pmx_fsmc;
 extern struct pmx_dev spear310_pmx_rs485_0_1;
 extern struct pmx_dev spear310_pmx_tdm0;
 
-/* Add spear310 machine function declarations here */
-void __init spear310_init(struct pmx_mode *pmx_mode, struct pmx_dev **pmx_devs,
-                u8 pmx_dev_count);
+/* Add spear310 machine declarations here */
+void __init spear310_clk_init(void);
 
 #endif /* CONFIG_MACH_SPEAR310 */
 
 /* spear320 declarations */
 #ifdef CONFIG_MACH_SPEAR320
-/* Add spear320 machine device structure declarations here */
-
 /* pad mux modes */
 extern struct pmx_mode spear320_auto_net_smii_mode;
 extern struct pmx_mode spear320_auto_net_mii_mode;
@@ -193,9 +181,8 @@ extern struct pmx_dev spear320_pmx_smii0;
 extern struct pmx_dev spear320_pmx_smii1;
 extern struct pmx_dev spear320_pmx_i2c1;
 
-/* Add spear320 machine function declarations here */
-void __init spear320_init(struct pmx_mode *pmx_mode, struct pmx_dev **pmx_devs,
-                u8 pmx_dev_count);
+/* Add spear320 machine declarations here */
+void __init spear320_clk_init(void);
 
 #endif /* CONFIG_MACH_SPEAR320 */