diff options
author | Syed Mohammed Khasim <x0khasim@ti.com> | 2006-12-06 17:14:05 -0800 |
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committer | Tony Lindgren <tony@atomide.com> | 2007-09-20 09:59:20 -0700 |
commit | 72d0f1c3cdc7c456e1e357359ec6f566d0a5f264 (patch) | |
tree | 1cebb2edf9fa1be79d991e7a61fa196d284d9a17 /arch/arm | |
parent | f604931238dff7b44ef52ac2ad1f557e45b25b38 (diff) | |
download | linux-stable-72d0f1c3cdc7c456e1e357359ec6f566d0a5f264.tar.gz linux-stable-72d0f1c3cdc7c456e1e357359ec6f566d0a5f264.tar.bz2 linux-stable-72d0f1c3cdc7c456e1e357359ec6f566d0a5f264.zip |
ARM: OMAP: Add minimal OMAP2430 support
This patch adds minimal OMAP2430 support to get the kernel booting on 2430SDP.
Signed-off-by: Syed Mohammed Khasim <x0khasim@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm')
-rw-r--r-- | arch/arm/mach-omap2/Kconfig | 9 | ||||
-rw-r--r-- | arch/arm/mach-omap2/Makefile | 1 | ||||
-rw-r--r-- | arch/arm/mach-omap2/board-2430sdp.c | 218 | ||||
-rw-r--r-- | arch/arm/mach-omap2/devices.c | 6 | ||||
-rw-r--r-- | arch/arm/mach-omap2/gpmc.c | 7 | ||||
-rw-r--r-- | arch/arm/mach-omap2/id.c | 6 | ||||
-rw-r--r-- | arch/arm/mach-omap2/io.c | 20 |
7 files changed, 265 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig index cf4268e46b03..7069c9d536f1 100644 --- a/arch/arm/mach-omap2/Kconfig +++ b/arch/arm/mach-omap2/Kconfig @@ -11,6 +11,10 @@ config ARCH_OMAP2420 select OMAP_DM_TIMER select ARCH_OMAP_OTG +config ARCH_OMAP2430 + bool "OMAP2430 support" + depends on ARCH_OMAP24XX + comment "OMAP Board Type" depends on ARCH_OMAP2 @@ -26,3 +30,8 @@ config MACH_OMAP_H4 config MACH_OMAP_APOLLON bool "OMAP 2420 Apollon board" depends on ARCH_OMAP2 && ARCH_OMAP24XX + +config MACH_OMAP_2430SDP + bool "OMAP 2430 SDP board" + depends on ARCH_OMAP2 && ARCH_OMAP24XX + diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 266d88e77bdc..b05b738d31e6 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -14,5 +14,6 @@ obj-$(CONFIG_PM) += pm.o pm-domain.o sleep.o # Specific board support obj-$(CONFIG_MACH_OMAP_GENERIC) += board-generic.o obj-$(CONFIG_MACH_OMAP_H4) += board-h4.o +obj-$(CONFIG_MACH_OMAP_2430SDP) += board-2430sdp.o obj-$(CONFIG_MACH_OMAP_APOLLON) += board-apollon.o diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c new file mode 100644 index 000000000000..7e76fbf19b5d --- /dev/null +++ b/arch/arm/mach-omap2/board-2430sdp.c @@ -0,0 +1,218 @@ +/* + * linux/arch/arm/mach-omap2/board-2430sdp.c + * + * Copyright (C) 2006 Texas Instruments + * + * Modified from mach-omap2/board-generic.c + * + * Initial Code : Based on a patch from Komal Shah and Richard Woodruff + * Updated the Code for 2430 SDP : Syed Mohammed Khasim + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/clk.h> + +#include <asm/hardware.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/flash.h> + +#include <asm/arch/gpio.h> +#include <asm/arch/mux.h> +#include <asm/arch/board.h> +#include <asm/arch/common.h> +#include <asm/arch/gpmc.h> +#include "prcm-regs.h" + +#include <asm/io.h> + + +#define SDP2430_FLASH_CS 0 +#define SDP2430_SMC91X_CS 5 + +static struct mtd_partition sdp2430_partitions[] = { + /* bootloader (U-Boot, etc) in first sector */ + { + .name = "bootloader", + .offset = 0, + .size = SZ_256K, + .mask_flags = MTD_WRITEABLE, /* force read-only */ + }, + /* bootloader params in the next sector */ + { + .name = "params", + .offset = MTDPART_OFS_APPEND, + .size = SZ_128K, + .mask_flags = 0, + }, + /* kernel */ + { + .name = "kernel", + .offset = MTDPART_OFS_APPEND, + .size = SZ_2M, + .mask_flags = 0 + }, + /* file system */ + { + .name = "filesystem", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + .mask_flags = 0 + } +}; + +static struct flash_platform_data sdp2430_flash_data = { + .map_name = "cfi_probe", + .width = 2, + .parts = sdp2430_partitions, + .nr_parts = ARRAY_SIZE(sdp2430_partitions), +}; + +static struct resource sdp2430_flash_resource = { + .start = SDP2430_CS0_BASE, + .end = SDP2430_CS0_BASE + SZ_64M - 1, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device sdp2430_flash_device = { + .name = "omapflash", + .id = 0, + .dev = { + .platform_data = &sdp2430_flash_data, + }, + .num_resources = 1, + .resource = &sdp2430_flash_resource, +}; + +static struct resource sdp2430_smc91x_resources[] = { + [0] = { + .start = SDP2430_CS0_BASE, + .end = SDP2430_CS0_BASE + SZ_64M - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ), + .end = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ), + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device sdp2430_smc91x_device = { + .name = "smc91x", + .id = -1, + .num_resources = ARRAY_SIZE(sdp2430_smc91x_resources), + .resource = sdp2430_smc91x_resources, +}; + +static struct platform_device *sdp2430_devices[] __initdata = { + &sdp2430_smc91x_device, + &sdp2430_flash_device, +}; + +static inline void __init sdp2430_init_smc91x(void) +{ + int eth_cs; + unsigned long cs_mem_base; + unsigned int rate; + struct clk *l3ck; + + eth_cs = SDP2430_SMC91X_CS; + + l3ck = clk_get(NULL, "core_l3_ck"); + if (IS_ERR(l3ck)) + rate = 100000000; + else + rate = clk_get_rate(l3ck); + + /* Make sure CS1 timings are correct, for 2430 always muxed */ + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200); + + if (rate >= 160000000) { + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4); + } else if (rate >= 130000000) { + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4); + } else { /* rate = 100000000 */ + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2); + } + + if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) { + printk(KERN_ERR "Failed to request GPMC mem for smc91x\n"); + return; + } + + sdp2430_smc91x_resources[0].start = cs_mem_base + 0x300; + sdp2430_smc91x_resources[0].end = cs_mem_base + 0x30f; + udelay(100); + + if (omap_request_gpio(OMAP24XX_ETHR_GPIO_IRQ) < 0) { + printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n", + OMAP24XX_ETHR_GPIO_IRQ); + gpmc_cs_free(eth_cs); + return; + } + omap_set_gpio_direction(OMAP24XX_ETHR_GPIO_IRQ, 1); + +} + +static void __init omap_2430sdp_init_irq(void) +{ + omap2_init_common_hw(); + omap_init_irq(); + omap_gpio_init(); + sdp2430_init_smc91x(); +} + +static struct omap_uart_config sdp2430_uart_config __initdata = { + .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)), +}; + +static struct omap_board_config_kernel sdp2430_config[] = { + {OMAP_TAG_UART, &sdp2430_uart_config}, +}; + +static void __init omap_2430sdp_init(void) +{ + platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices)); + omap_board_config = sdp2430_config; + omap_board_config_size = ARRAY_SIZE(sdp2430_config); + omap_serial_init(); +} + +static void __init omap_2430sdp_map_io(void) +{ + omap2_map_common_io(); +} + +MACHINE_START(OMAP_2430SDP, "OMAP2430 sdp2430 board") + /* Maintainer: Syed Khasim - Texas Instruments Inc */ + .phys_io = 0x48000000, + .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, + .boot_params = 0x80000100, + .map_io = omap_2430sdp_map_io, + .init_irq = omap_2430sdp_init_irq, + .init_machine = omap_2430sdp_init, + .timer = &omap_timer, +MACHINE_END diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c index 52ec2f2d6360..b603bc5f8e5b 100644 --- a/arch/arm/mach-omap2/devices.c +++ b/arch/arm/mach-omap2/devices.c @@ -55,8 +55,10 @@ static void omap_init_i2c(void) if (machine_is_omap_h4()) return; - omap_cfg_reg(J15_24XX_I2C2_SCL); - omap_cfg_reg(H19_24XX_I2C2_SDA); + if (!cpu_is_omap2430()) { + omap_cfg_reg(J15_24XX_I2C2_SCL); + omap_cfg_reg(H19_24XX_I2C2_SDA); + } (void) platform_device_register(&omap_i2c_device2); } diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c index 6d6b25c46b1f..03595ee72ed3 100644 --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -22,7 +22,14 @@ #undef DEBUG +#ifdef CONFIG_ARCH_OMAP2420 #define GPMC_BASE 0x6800a000 +#endif + +#ifdef CONFIG_ARCH_OMAP2430 +#define GPMC_BASE 0x6E000000 +#endif + #define GPMC_REVISION 0x00 #define GPMC_SYSCONFIG 0x10 #define GPMC_SYSSTATUS 0x14 diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index 871ace4fccb8..4dfd878d7968 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -17,7 +17,13 @@ #include <asm/io.h> +#if defined(CONFIG_ARCH_OMAP2420) #define OMAP24XX_TAP_BASE io_p2v(0x48014000) +#endif + +#if defined(CONFIG_ARCH_OMAP2430) +#define OMAP24XX_TAP_BASE io_p2v(0x4900A000) +#endif #define OMAP_TAP_IDCODE 0x0204 #define OMAP_TAP_PROD_ID 0x0208 diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index a57a4295ce23..5a4091f582ed 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -5,6 +5,7 @@ * * Copyright (C) 2005 Nokia Corporation * Author: Juha Yrjölä <juha.yrjola@nokia.com> + * Updated map desc to add 2430 support : <x0khasim@ti.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -41,6 +42,20 @@ static struct map_desc omap2_io_desc[] __initdata = { .length = L3_24XX_SIZE, .type = MT_DEVICE }, +#ifdef CONFIG_ARCH_OMAP2430 + { + .virtual = L4_WK_243X_VIRT, + .pfn = __phys_to_pfn(L4_WK_243X_PHYS), + .length = L4_WK_243X_SIZE, + .type = MT_DEVICE + }, + { + .virtual = OMAP243X_GPMC_VIRT, + .pfn = __phys_to_pfn(OMAP243X_GPMC_PHYS), + .length = OMAP243X_GPMC_SIZE, + .type = MT_DEVICE + }, +#endif { .virtual = DSP_MEM_24XX_VIRT, .pfn = __phys_to_pfn(DSP_MEM_24XX_PHYS), @@ -81,6 +96,11 @@ void __init omap2_init_common_hw(void) { omap2_mux_init(); omap2_clk_init(); +/* + * Need to Fix this for 2430 + */ +#ifndef CONFIG_ARCH_OMAP2430 omap2_init_memory(); +#endif gpmc_init(); } |