From: Catalin Marinas Date: Fri, 18 Apr 2008 21:43:11 +0000 (+0100) Subject: RealView: Move the UART definitions to EB specific files X-Git-Tag: v2.6.26-rc1~1131^2~15 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9a386f0651d06002a0468ce4d0e15aaf7c316a3c;p=linux-2.6 RealView: Move the UART definitions to EB specific files Since the PB1176 has different UART base addresses, this patch moves the definitions form platorm.h to board-eb.h. It also modifies uncompress.h to detect the platform type at run-time. Signed-off-by: Catalin Marinas --- diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c index c5e5f07b5f..f970c9fb15 100644 --- a/arch/arm/mach-realview/realview_eb.c +++ b/arch/arm/mach-realview/realview_eb.c @@ -78,8 +78,8 @@ static struct map_desc realview_eb_io_desc[] __initdata = { }, #ifdef CONFIG_DEBUG_LL { - .virtual = IO_ADDRESS(REALVIEW_UART0_BASE), - .pfn = __phys_to_pfn(REALVIEW_UART0_BASE), + .virtual = IO_ADDRESS(REALVIEW_EB_UART0_BASE), + .pfn = __phys_to_pfn(REALVIEW_EB_UART0_BASE), .length = SZ_4K, .type = MT_DEVICE, } @@ -164,14 +164,14 @@ static void __init realview_eb_map_io(void) */ #define SCI_IRQ { IRQ_EB_SCI, NO_IRQ } #define SCI_DMA { 7, 6 } -#define UART0_IRQ { IRQ_EB_UART0, NO_IRQ } -#define UART0_DMA { 15, 14 } -#define UART1_IRQ { IRQ_EB_UART1, NO_IRQ } -#define UART1_DMA { 13, 12 } -#define UART2_IRQ { IRQ_EB_UART2, NO_IRQ } -#define UART2_DMA { 11, 10 } -#define UART3_IRQ { IRQ_EB_UART3, NO_IRQ } -#define UART3_DMA { 0x86, 0x87 } +#define EB_UART0_IRQ { IRQ_EB_UART0, NO_IRQ } +#define EB_UART0_DMA { 15, 14 } +#define EB_UART1_IRQ { IRQ_EB_UART1, NO_IRQ } +#define EB_UART1_DMA { 13, 12 } +#define EB_UART2_IRQ { IRQ_EB_UART2, NO_IRQ } +#define EB_UART2_DMA { 11, 10 } +#define EB_UART3_IRQ { IRQ_EB_UART3, NO_IRQ } +#define EB_UART3_DMA { 0x86, 0x87 } #define SSP_IRQ { IRQ_EB_SSP, NO_IRQ } #define SSP_DMA { 9, 8 } @@ -180,7 +180,7 @@ AMBA_DEVICE(aaci, "fpga:04", AACI, NULL); AMBA_DEVICE(mmc0, "fpga:05", MMCI0, &realview_mmc0_plat_data); AMBA_DEVICE(kmi0, "fpga:06", KMI0, NULL); AMBA_DEVICE(kmi1, "fpga:07", KMI1, NULL); -AMBA_DEVICE(uart3, "fpga:09", UART3, NULL); +AMBA_DEVICE(uart3, "fpga:09", EB_UART3, NULL); /* DevChip Primecells */ AMBA_DEVICE(smc, "dev:00", SMC, NULL); @@ -193,9 +193,9 @@ AMBA_DEVICE(gpio1, "dev:e5", GPIO1, NULL); AMBA_DEVICE(gpio2, "dev:e6", GPIO2, NULL); AMBA_DEVICE(rtc, "dev:e8", RTC, NULL); AMBA_DEVICE(sci0, "dev:f0", SCI, NULL); -AMBA_DEVICE(uart0, "dev:f1", UART0, NULL); -AMBA_DEVICE(uart1, "dev:f2", UART1, NULL); -AMBA_DEVICE(uart2, "dev:f3", UART2, NULL); +AMBA_DEVICE(uart0, "dev:f1", EB_UART0, NULL); +AMBA_DEVICE(uart1, "dev:f2", EB_UART1, NULL); +AMBA_DEVICE(uart2, "dev:f3", EB_UART2, NULL); AMBA_DEVICE(ssp0, "dev:f4", SSP, NULL); static struct amba_device *amba_devs[] __initdata = { @@ -388,8 +388,8 @@ static void __init realview_eb_init(void) MACHINE_START(REALVIEW_EB, "ARM-RealView EB") /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ - .phys_io = REALVIEW_UART0_BASE, - .io_pg_offst = (IO_ADDRESS(REALVIEW_UART0_BASE) >> 18) & 0xfffc, + .phys_io = REALVIEW_EB_UART0_BASE, + .io_pg_offst = (IO_ADDRESS(REALVIEW_EB_UART0_BASE) >> 18) & 0xfffc, .boot_params = 0x00000100, .map_io = realview_eb_map_io, .init_irq = gic_init_irq, diff --git a/include/asm-arm/arch-realview/board-eb.h b/include/asm-arm/arch-realview/board-eb.h index 142d77a72f..565bb937ac 100644 --- a/include/asm-arm/arch-realview/board-eb.h +++ b/include/asm-arm/arch-realview/board-eb.h @@ -26,6 +26,10 @@ /* * RealView EB + ARM11MPCore peripheral addresses */ +#define REALVIEW_EB_UART0_BASE 0x10009000 /* UART 0 */ +#define REALVIEW_EB_UART1_BASE 0x1000A000 /* UART 1 */ +#define REALVIEW_EB_UART2_BASE 0x1000B000 /* UART 2 */ +#define REALVIEW_EB_UART3_BASE 0x1000C000 /* UART 3 */ #define REALVIEW_EB_TIMER0_1_BASE 0x10011000 /* Timer 0 and 1 */ #define REALVIEW_EB_TIMER2_3_BASE 0x10012000 /* Timer 2 and 3 */ #define REALVIEW_EB_GIC_CPU_BASE 0x10040000 /* Generic interrupt controller CPU interface */ diff --git a/include/asm-arm/arch-realview/platform.h b/include/asm-arm/arch-realview/platform.h index 7aa78a5ebc..d18fb128ed 100644 --- a/include/asm-arm/arch-realview/platform.h +++ b/include/asm-arm/arch-realview/platform.h @@ -182,10 +182,6 @@ #define REALVIEW_KMI0_BASE 0x10006000 /* KMI interface */ #define REALVIEW_KMI1_BASE 0x10007000 /* KMI 2nd interface */ #define REALVIEW_CHAR_LCD_BASE 0x10008000 /* Character LCD */ -#define REALVIEW_UART0_BASE 0x10009000 /* UART 0 */ -#define REALVIEW_UART1_BASE 0x1000A000 /* UART 1 */ -#define REALVIEW_UART2_BASE 0x1000B000 /* UART 2 */ -#define REALVIEW_UART3_BASE 0x1000C000 /* UART 3 */ #define REALVIEW_SSP_BASE 0x1000D000 /* Synchronous Serial Port */ #define REALVIEW_SCI_BASE 0x1000E000 /* Smart card controller */ /* Reserved 0x1000F000 */ diff --git a/include/asm-arm/arch-realview/uncompress.h b/include/asm-arm/arch-realview/uncompress.h index 3d5c2db07a..9b790a7e78 100644 --- a/include/asm-arm/arch-realview/uncompress.h +++ b/include/asm-arm/arch-realview/uncompress.h @@ -18,28 +18,44 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include +#include -#include +#include -#define AMBA_UART_DR (*(volatile unsigned char *) (REALVIEW_UART0_BASE + 0x00)) -#define AMBA_UART_LCRH (*(volatile unsigned char *) (REALVIEW_UART0_BASE + 0x2c)) -#define AMBA_UART_CR (*(volatile unsigned char *) (REALVIEW_UART0_BASE + 0x30)) -#define AMBA_UART_FR (*(volatile unsigned char *) (REALVIEW_UART0_BASE + 0x18)) +#define AMBA_UART_DR(base) (*(volatile unsigned char *)((base) + 0x00)) +#define AMBA_UART_LCRH(base) (*(volatile unsigned char *)((base) + 0x2c)) +#define AMBA_UART_CR(base) (*(volatile unsigned char *)((base) + 0x30)) +#define AMBA_UART_FR(base) (*(volatile unsigned char *)((base) + 0x18)) + +/* + * Return the UART base address + */ +static inline unsigned long get_uart_base(void) +{ + if (machine_is_realview_eb()) + return REALVIEW_EB_UART0_BASE; + else + return 0; +} /* * This does not append a newline */ static inline void putc(int c) { - while (AMBA_UART_FR & (1 << 5)) + unsigned long base = get_uart_base(); + + while (AMBA_UART_FR(base) & (1 << 5)) barrier(); - AMBA_UART_DR = c; + AMBA_UART_DR(base) = c; } static inline void flush(void) { - while (AMBA_UART_FR & (1 << 3)) + unsigned long base = get_uart_base(); + + while (AMBA_UART_FR(base) & (1 << 3)) barrier(); }