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authorStefan Roese <sr@denx.de>2012-03-16 14:03:23 +0100
committerArnd Bergmann <arnd@arndb.de>2012-03-16 20:19:41 +0000
commit9652e8bd16e73f7a34cabf1ab114aaa5c97db660 (patch)
tree5dc349178f64ef83fe3f2aed87d475b733e513e6 /arch/arm/mach-spear6xx
parentfde7d9049e55ab85a390be7f415d74c9f62dd0f9 (diff)
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ARM: SPEAr600: Add device-tree support to SPEAr600 boards
This patch adds a generic target for SPEAr600 board that can be configured via the device-tree. Currently the following devices are supported via the devicetree: - VIC interrupts - PL011 UART - PL061 GPIO - Synopsys DW I2C - Synopsys DW ethernet Other peripheral devices (e.g. SMI flash, FSMC NAND flash etc) will follow in later patches. Only the spear600-evb is currently supported. Other SPEAr600 based boards will follow later. Since the current mainline SPEAr600 code only supports the SPEAr600 evaluation board, with nearly zero peripheral devices (only UART and GPIO), it makes sense to switch over to DT based configuration completely now. So this patch also removes all non-DT stuff, mainly platform device data. The files spear600.c and spear600_evb.c are removed completely. Signed-off-by: Stefan Roese <sr@denx.de> Acked-by: Viresh Kumar <viresh.kumar@st.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-spear6xx')
-rw-r--r--arch/arm/mach-spear6xx/Kconfig7
-rw-r--r--arch/arm/mach-spear6xx/Makefile6
-rw-r--r--arch/arm/mach-spear6xx/clock.c14
-rw-r--r--arch/arm/mach-spear6xx/spear600.c25
-rw-r--r--arch/arm/mach-spear6xx/spear600_evb.c54
-rw-r--r--arch/arm/mach-spear6xx/spear6xx.c132
6 files changed, 47 insertions, 191 deletions
diff --git a/arch/arm/mach-spear6xx/Kconfig b/arch/arm/mach-spear6xx/Kconfig
index ff4ae5b..fbe298b 100644
--- a/arch/arm/mach-spear6xx/Kconfig
+++ b/arch/arm/mach-spear6xx/Kconfig
@@ -5,11 +5,12 @@
if ARCH_SPEAR6XX
menu "SPEAr6xx Implementations"
-config BOARD_SPEAR600_EVB
- bool "SPEAr600 Evaluation Board"
+config BOARD_SPEAR600_DT
+ bool "SPEAr600 generic board configured via device-tree"
select MACH_SPEAR600
+ select USE_OF
help
- Supports ST SPEAr600 Evaluation Board
+ Supports ST SPEAr600 boards configured via the device-tree
endmenu
diff --git a/arch/arm/mach-spear6xx/Makefile b/arch/arm/mach-spear6xx/Makefile
index cc1a4d8..76e5750 100644
--- a/arch/arm/mach-spear6xx/Makefile
+++ b/arch/arm/mach-spear6xx/Makefile
@@ -4,9 +4,3 @@
# common files
obj-y += clock.o spear6xx.o
-
-# spear600 specific files
-obj-$(CONFIG_MACH_SPEAR600) += spear600.o
-
-# spear600 boards files
-obj-$(CONFIG_BOARD_SPEAR600_EVB) += spear600_evb.o
diff --git a/arch/arm/mach-spear6xx/clock.c b/arch/arm/mach-spear6xx/clock.c
index ac70e0d..358f280 100644
--- a/arch/arm/mach-spear6xx/clock.c
+++ b/arch/arm/mach-spear6xx/clock.c
@@ -641,8 +641,8 @@ static struct clk_lookup spear_clk_lookups[] = {
{ .con_id = "gpt0_synth_clk", .clk = &gpt0_synth_clk},
{ .con_id = "gpt2_synth_clk", .clk = &gpt2_synth_clk},
{ .con_id = "gpt3_synth_clk", .clk = &gpt3_synth_clk},
- { .dev_id = "uart0", .clk = &uart0_clk},
- { .dev_id = "uart1", .clk = &uart1_clk},
+ { .dev_id = "d0000000.serial", .clk = &uart0_clk},
+ { .dev_id = "d0080000.serial", .clk = &uart1_clk},
{ .dev_id = "firda", .clk = &firda_clk},
{ .dev_id = "clcd", .clk = &clcd_clk},
{ .dev_id = "gpt0", .clk = &gpt0_clk},
@@ -655,20 +655,20 @@ static struct clk_lookup spear_clk_lookups[] = {
{ .con_id = "usbh.1_clk", .clk = &usbh1_clk},
/* clock derived from ahb clk */
{ .con_id = "apb_clk", .clk = &apb_clk},
- { .dev_id = "i2c_designware.0", .clk = &i2c_clk},
+ { .dev_id = "d0200000.i2c", .clk = &i2c_clk},
{ .dev_id = "dma", .clk = &dma_clk},
{ .dev_id = "jpeg", .clk = &jpeg_clk},
{ .dev_id = "gmac", .clk = &gmac_clk},
{ .dev_id = "smi", .clk = &smi_clk},
- { .con_id = "fsmc", .clk = &fsmc_clk},
+ { .dev_id = "fsmc-nand", .clk = &fsmc_clk},
/* clock derived from apb clk */
{ .dev_id = "adc", .clk = &adc_clk},
{ .dev_id = "ssp-pl022.0", .clk = &ssp0_clk},
{ .dev_id = "ssp-pl022.1", .clk = &ssp1_clk},
{ .dev_id = "ssp-pl022.2", .clk = &ssp2_clk},
- { .dev_id = "gpio0", .clk = &gpio0_clk},
- { .dev_id = "gpio1", .clk = &gpio1_clk},
- { .dev_id = "gpio2", .clk = &gpio2_clk},
+ { .dev_id = "f0100000.gpio", .clk = &gpio0_clk},
+ { .dev_id = "fc980000.gpio", .clk = &gpio1_clk},
+ { .dev_id = "d8100000.gpio", .clk = &gpio2_clk},
};
void __init spear6xx_clk_init(void)
diff --git a/arch/arm/mach-spear6xx/spear600.c b/arch/arm/mach-spear6xx/spear600.c
deleted file mode 100644
index d0e6eea..0000000
--- a/arch/arm/mach-spear6xx/spear600.c
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * arch/arm/mach-spear6xx/spear600.c
- *
- * SPEAr600 machine source file
- *
- * Copyright (C) 2009 ST Microelectronics
- * Rajeev Kumar<rajeev-dlh.kumar@st.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#include <linux/ptrace.h>
-#include <asm/irq.h>
-#include <mach/generic.h>
-#include <mach/hardware.h>
-
-/* Add spear600 specific devices here */
-
-void __init spear600_init(void)
-{
- /* call spear6xx family common init function */
- spear6xx_init();
-}
diff --git a/arch/arm/mach-spear6xx/spear600_evb.c b/arch/arm/mach-spear6xx/spear600_evb.c
deleted file mode 100644
index c6e4254..0000000
--- a/arch/arm/mach-spear6xx/spear600_evb.c
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * arch/arm/mach-spear6xx/spear600_evb.c
- *
- * SPEAr600 evaluation board source file
- *
- * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#include <asm/hardware/vic.h>
-#include <asm/mach/arch.h>
-#include <asm/mach-types.h>
-#include <mach/generic.h>
-#include <mach/hardware.h>
-
-static struct amba_device *amba_devs[] __initdata = {
- &gpio_device[0],
- &gpio_device[1],
- &gpio_device[2],
- &uart_device[0],
- &uart_device[1],
-};
-
-static struct platform_device *plat_devs[] __initdata = {
-};
-
-static void __init spear600_evb_init(void)
-{
- unsigned int i;
-
- /* call spear600 machine init function */
- spear600_init();
-
- /* Add Platform Devices */
- platform_add_devices(plat_devs, ARRAY_SIZE(plat_devs));
-
- /* Add Amba Devices */
- for (i = 0; i < ARRAY_SIZE(amba_devs); i++)
- amba_device_register(amba_devs[i], &iomem_resource);
-}
-
-MACHINE_START(SPEAR600, "ST-SPEAR600-EVB")
- .atag_offset = 0x100,
- .map_io = spear6xx_map_io,
- .init_irq = spear6xx_init_irq,
- .handle_irq = vic_handle_irq,
- .timer = &spear6xx_timer,
- .init_machine = spear600_evb_init,
- .restart = spear_restart,
-MACHINE_END
diff --git a/arch/arm/mach-spear6xx/spear6xx.c b/arch/arm/mach-spear6xx/spear6xx.c
index e0f6628..2ed8b14 100644
--- a/arch/arm/mach-spear6xx/spear6xx.c
+++ b/arch/arm/mach-spear6xx/spear6xx.c
@@ -6,111 +6,21 @@
* Copyright (C) 2009 ST Microelectronics
* Rajeev Kumar<rajeev-dlh.kumar@st.com>
*
+ * Copyright 2012 Stefan Roese <sr@denx.de>
+ *
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
-#include <linux/types.h>
-#include <linux/amba/pl061.h>
-#include <linux/ptrace.h>
-#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
#include <asm/hardware/vic.h>
-#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <mach/generic.h>
#include <mach/hardware.h>
-#include <mach/irqs.h>
-
-/* Add spear6xx machines common devices here */
-/* uart device registration */
-struct amba_device uart_device[] = {
- {
- .dev = {
- .init_name = "uart0",
- },
- .res = {
- .start = SPEAR6XX_ICM1_UART0_BASE,
- .end = SPEAR6XX_ICM1_UART0_BASE + SZ_4K - 1,
- .flags = IORESOURCE_MEM,
- },
- .irq = {IRQ_UART_0, NO_IRQ},
- }, {
- .dev = {
- .init_name = "uart1",
- },
- .res = {
- .start = SPEAR6XX_ICM1_UART1_BASE,
- .end = SPEAR6XX_ICM1_UART1_BASE + SZ_4K - 1,
- .flags = IORESOURCE_MEM,
- },
- .irq = {IRQ_UART_1, NO_IRQ},
- }
-};
-
-/* gpio device registration */
-static struct pl061_platform_data gpio_plat_data[] = {
- {
- .gpio_base = 0,
- .irq_base = SPEAR_GPIO0_INT_BASE,
- }, {
- .gpio_base = 8,
- .irq_base = SPEAR_GPIO1_INT_BASE,
- }, {
- .gpio_base = 16,
- .irq_base = SPEAR_GPIO2_INT_BASE,
- },
-};
-
-struct amba_device gpio_device[] = {
- {
- .dev = {
- .init_name = "gpio0",
- .platform_data = &gpio_plat_data[0],
- },
- .res = {
- .start = SPEAR6XX_CPU_GPIO_BASE,
- .end = SPEAR6XX_CPU_GPIO_BASE + SZ_4K - 1,
- .flags = IORESOURCE_MEM,
- },
- .irq = {IRQ_LOCAL_GPIO, NO_IRQ},
- }, {
- .dev = {
- .init_name = "gpio1",
- .platform_data = &gpio_plat_data[1],
- },
- .res = {
- .start = SPEAR6XX_ICM3_GPIO_BASE,
- .end = SPEAR6XX_ICM3_GPIO_BASE + SZ_4K - 1,
- .flags = IORESOURCE_MEM,
- },
- .irq = {IRQ_BASIC_GPIO, NO_IRQ},
- }, {
- .dev = {
- .init_name = "gpio2",
- .platform_data = &gpio_plat_data[2],
- },
- .res = {
- .start = SPEAR6XX_ICM2_GPIO_BASE,
- .end = SPEAR6XX_ICM2_GPIO_BASE + SZ_4K - 1,
- .flags = IORESOURCE_MEM,
- },
- .irq = {IRQ_APPL_GPIO, NO_IRQ},
- }
-};
-
-/* This will add devices, and do machine specific tasks */
-void __init spear6xx_init(void)
-{
- /* nothing to do for now */
-}
-
-/* This will initialize vic */
-void __init spear6xx_init_irq(void)
-{
- vic_init((void __iomem *)VA_SPEAR6XX_CPU_VIC_PRI_BASE, 0, ~0, 0);
- vic_init((void __iomem *)VA_SPEAR6XX_CPU_VIC_SEC_BASE, 32, ~0, 0);
-}
/* Following will create static virtual/physical mappings */
static struct map_desc spear6xx_io_desc[] __initdata = {
@@ -181,3 +91,33 @@ static void __init spear6xx_timer_init(void)
struct sys_timer spear6xx_timer = {
.init = spear6xx_timer_init,
};
+
+static void __init spear600_dt_init(void)
+{
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+}
+
+static const char *spear600_dt_board_compat[] = {
+ "st,spear600",
+ NULL
+};
+
+static const struct of_device_id vic_of_match[] __initconst = {
+ { .compatible = "arm,pl190-vic", .data = vic_of_init, },
+ { /* Sentinel */ }
+};
+
+static void __init spear6xx_dt_init_irq(void)
+{
+ of_irq_init(vic_of_match);
+}
+
+DT_MACHINE_START(SPEAR600_DT, "ST SPEAr600 (Flattened Device Tree)")
+ .map_io = spear6xx_map_io,
+ .init_irq = spear6xx_dt_init_irq,
+ .handle_irq = vic_handle_irq,
+ .timer = &spear6xx_timer,
+ .init_machine = spear600_dt_init,
+ .restart = spear_restart,
+ .dt_compat = spear600_dt_board_compat,
+MACHINE_END