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Diffstat (limited to 'arch/arm/mach-omap/common.c')
-rw-r--r--arch/arm/mach-omap/common.c549
1 files changed, 0 insertions, 549 deletions
diff --git a/arch/arm/mach-omap/common.c b/arch/arm/mach-omap/common.c
deleted file mode 100644
index 265cde48586f..000000000000
--- a/arch/arm/mach-omap/common.c
+++ /dev/null
@@ -1,549 +0,0 @@
-/*
- * linux/arch/arm/mach-omap/common.c
- *
- * Code common to all OMAP machines.
- *
- * 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/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/pm.h>
-#include <linux/console.h>
-#include <linux/serial.h>
-#include <linux/tty.h>
-#include <linux/serial_8250.h>
-#include <linux/serial_reg.h>
-
-#include <asm/hardware.h>
-#include <asm/system.h>
-#include <asm/pgtable.h>
-#include <asm/mach/map.h>
-#include <asm/hardware/clock.h>
-#include <asm/io.h>
-#include <asm/mach-types.h>
-
-#include <asm/arch/board.h>
-#include <asm/arch/mux.h>
-#include <asm/arch/fpga.h>
-
-#include "clock.h"
-
-#define DEBUG 1
-
-struct omap_id {
- u16 jtag_id; /* Used to determine OMAP type */
- u8 die_rev; /* Processor revision */
- u32 omap_id; /* OMAP revision */
- u32 type; /* Cpu id bits [31:08], cpu class bits [07:00] */
-};
-
-/* Register values to detect the OMAP version */
-static struct omap_id omap_ids[] __initdata = {
- { .jtag_id = 0x355f, .die_rev = 0x0, .omap_id = 0x03320000, .type = 0x07300100},
- { .jtag_id = 0xb55f, .die_rev = 0x0, .omap_id = 0x03320000, .type = 0x07300300},
- { .jtag_id = 0xb470, .die_rev = 0x0, .omap_id = 0x03310100, .type = 0x15100000},
- { .jtag_id = 0xb576, .die_rev = 0x0, .omap_id = 0x03320000, .type = 0x16100000},
- { .jtag_id = 0xb576, .die_rev = 0x2, .omap_id = 0x03320100, .type = 0x16110000},
- { .jtag_id = 0xb576, .die_rev = 0x3, .omap_id = 0x03320100, .type = 0x16100c00},
- { .jtag_id = 0xb576, .die_rev = 0x0, .omap_id = 0x03320200, .type = 0x16100d00},
- { .jtag_id = 0xb613, .die_rev = 0x0, .omap_id = 0x03320300, .type = 0x1610ef00},
- { .jtag_id = 0xb613, .die_rev = 0x0, .omap_id = 0x03320300, .type = 0x1610ef00},
- { .jtag_id = 0xb576, .die_rev = 0x1, .omap_id = 0x03320100, .type = 0x16110000},
- { .jtag_id = 0xb58c, .die_rev = 0x2, .omap_id = 0x03320200, .type = 0x16110b00},
- { .jtag_id = 0xb58c, .die_rev = 0x3, .omap_id = 0x03320200, .type = 0x16110c00},
- { .jtag_id = 0xb65f, .die_rev = 0x0, .omap_id = 0x03320400, .type = 0x16212300},
- { .jtag_id = 0xb65f, .die_rev = 0x1, .omap_id = 0x03320400, .type = 0x16212300},
- { .jtag_id = 0xb65f, .die_rev = 0x1, .omap_id = 0x03320500, .type = 0x16212300},
- { .jtag_id = 0xb5f7, .die_rev = 0x0, .omap_id = 0x03330000, .type = 0x17100000},
- { .jtag_id = 0xb5f7, .die_rev = 0x1, .omap_id = 0x03330100, .type = 0x17100000},
- { .jtag_id = 0xb5f7, .die_rev = 0x2, .omap_id = 0x03330100, .type = 0x17100000},
-};
-
-/*
- * Get OMAP type from PROD_ID.
- * 1710 has the PROD_ID in bits 15:00, not in 16:01 as documented in TRM.
- * 1510 PROD_ID is empty, and 1610 PROD_ID does not make sense.
- * Undocumented register in TEST BLOCK is used as fallback; This seems to
- * work on 1510, 1610 & 1710. The official way hopefully will work in future
- * processors.
- */
-static u16 __init omap_get_jtag_id(void)
-{
- u32 prod_id, omap_id;
-
- prod_id = omap_readl(OMAP_PRODUCTION_ID_1);
- omap_id = omap_readl(OMAP32_ID_1);
-
- /* Check for unusable OMAP_PRODUCTION_ID_1 on 1611B/5912 and 730 */
- if (((prod_id >> 20) == 0) || (prod_id == omap_id))
- prod_id = 0;
- else
- prod_id &= 0xffff;
-
- if (prod_id)
- return prod_id;
-
- /* Use OMAP32_ID_1 as fallback */
- prod_id = ((omap_id >> 12) & 0xffff);
-
- return prod_id;
-}
-
-/*
- * Get OMAP revision from DIE_REV.
- * Early 1710 processors may have broken OMAP_DIE_ID, it contains PROD_ID.
- * Undocumented register in the TEST BLOCK is used as fallback.
- * REVISIT: This does not seem to work on 1510
- */
-static u8 __init omap_get_die_rev(void)
-{
- u32 die_rev;
-
- die_rev = omap_readl(OMAP_DIE_ID_1);
-
- /* Check for broken OMAP_DIE_ID on early 1710 */
- if (((die_rev >> 12) & 0xffff) == omap_get_jtag_id())
- die_rev = 0;
-
- die_rev = (die_rev >> 17) & 0xf;
- if (die_rev)
- return die_rev;
-
- die_rev = (omap_readl(OMAP32_ID_1) >> 28) & 0xf;
-
- return die_rev;
-}
-
-static void __init omap_check_revision(void)
-{
- int i;
- u16 jtag_id;
- u8 die_rev;
- u32 omap_id;
- u8 cpu_type;
-
- jtag_id = omap_get_jtag_id();
- die_rev = omap_get_die_rev();
- omap_id = omap_readl(OMAP32_ID_0);
-
-#ifdef DEBUG
- printk("OMAP_DIE_ID_0: 0x%08x\n", omap_readl(OMAP_DIE_ID_0));
- printk("OMAP_DIE_ID_1: 0x%08x DIE_REV: %i\n",
- omap_readl(OMAP_DIE_ID_1),
- (omap_readl(OMAP_DIE_ID_1) >> 17) & 0xf);
- printk("OMAP_PRODUCTION_ID_0: 0x%08x\n", omap_readl(OMAP_PRODUCTION_ID_0));
- printk("OMAP_PRODUCTION_ID_1: 0x%08x JTAG_ID: 0x%04x\n",
- omap_readl(OMAP_PRODUCTION_ID_1),
- omap_readl(OMAP_PRODUCTION_ID_1) & 0xffff);
- printk("OMAP32_ID_0: 0x%08x\n", omap_readl(OMAP32_ID_0));
- printk("OMAP32_ID_1: 0x%08x\n", omap_readl(OMAP32_ID_1));
- printk("JTAG_ID: 0x%04x DIE_REV: %i\n", jtag_id, die_rev);
-#endif
-
- system_serial_high = omap_readl(OMAP_DIE_ID_0);
- system_serial_low = omap_readl(OMAP_DIE_ID_1);
-
- /* First check only the major version in a safe way */
- for (i = 0; i < ARRAY_SIZE(omap_ids); i++) {
- if (jtag_id == (omap_ids[i].jtag_id)) {
- system_rev = omap_ids[i].type;
- break;
- }
- }
-
- /* Check if we can find the die revision */
- for (i = 0; i < ARRAY_SIZE(omap_ids); i++) {
- if (jtag_id == omap_ids[i].jtag_id && die_rev == omap_ids[i].die_rev) {
- system_rev = omap_ids[i].type;
- break;
- }
- }
-
- /* Finally check also the omap_id */
- for (i = 0; i < ARRAY_SIZE(omap_ids); i++) {
- if (jtag_id == omap_ids[i].jtag_id
- && die_rev == omap_ids[i].die_rev
- && omap_id == omap_ids[i].omap_id) {
- system_rev = omap_ids[i].type;
- break;
- }
- }
-
- /* Add the cpu class info (7xx, 15xx, 16xx, 24xx) */
- cpu_type = system_rev >> 24;
-
- switch (cpu_type) {
- case 0x07:
- system_rev |= 0x07;
- break;
- case 0x15:
- system_rev |= 0x15;
- break;
- case 0x16:
- case 0x17:
- system_rev |= 0x16;
- break;
- case 0x24:
- system_rev |= 0x24;
- break;
- default:
- printk("Unknown OMAP cpu type: 0x%02x\n", cpu_type);
- }
-
- printk("OMAP%04x", system_rev >> 16);
- if ((system_rev >> 8) & 0xff)
- printk("%x", (system_rev >> 8) & 0xff);
- printk(" revision %i handled as %02xxx id: %08x%08x\n",
- die_rev, system_rev & 0xff, system_serial_low,
- system_serial_high);
-}
-
-/*
- * ----------------------------------------------------------------------------
- * OMAP I/O mapping
- *
- * The machine specific code may provide the extra mapping besides the
- * default mapping provided here.
- * ----------------------------------------------------------------------------
- */
-
-static struct map_desc omap_io_desc[] __initdata = {
- { IO_VIRT, IO_PHYS, IO_SIZE, MT_DEVICE },
-};
-
-#ifdef CONFIG_ARCH_OMAP730
-static struct map_desc omap730_io_desc[] __initdata = {
- { OMAP730_DSP_BASE, OMAP730_DSP_START, OMAP730_DSP_SIZE, MT_DEVICE },
- { OMAP730_DSPREG_BASE, OMAP730_DSPREG_START, OMAP730_DSPREG_SIZE, MT_DEVICE },
- { OMAP730_SRAM_BASE, OMAP730_SRAM_START, OMAP730_SRAM_SIZE, MT_DEVICE }
-};
-#endif
-
-#ifdef CONFIG_ARCH_OMAP1510
-static struct map_desc omap1510_io_desc[] __initdata = {
- { OMAP1510_DSP_BASE, OMAP1510_DSP_START, OMAP1510_DSP_SIZE, MT_DEVICE },
- { OMAP1510_DSPREG_BASE, OMAP1510_DSPREG_START, OMAP1510_DSPREG_SIZE, MT_DEVICE },
- { OMAP1510_SRAM_BASE, OMAP1510_SRAM_START, OMAP1510_SRAM_SIZE, MT_DEVICE }
-};
-#endif
-
-#if defined(CONFIG_ARCH_OMAP16XX)
-static struct map_desc omap1610_io_desc[] __initdata = {
- { OMAP16XX_DSP_BASE, OMAP16XX_DSP_START, OMAP16XX_DSP_SIZE, MT_DEVICE },
- { OMAP16XX_DSPREG_BASE, OMAP16XX_DSPREG_START, OMAP16XX_DSPREG_SIZE, MT_DEVICE },
- { OMAP16XX_SRAM_BASE, OMAP16XX_SRAM_START, OMAP1610_SRAM_SIZE, MT_DEVICE }
-};
-
-static struct map_desc omap5912_io_desc[] __initdata = {
- { OMAP16XX_DSP_BASE, OMAP16XX_DSP_START, OMAP16XX_DSP_SIZE, MT_DEVICE },
- { OMAP16XX_DSPREG_BASE, OMAP16XX_DSPREG_START, OMAP16XX_DSPREG_SIZE, MT_DEVICE },
-/*
- * The OMAP5912 has 250kByte internal SRAM. Because the mapping is baseed on page
- * size (4kByte), it seems that the last 2kByte (=0x800) of the 250kByte are not mapped.
- * Add additional 2kByte (0x800) so that the last page is mapped and the last 2kByte
- * can be used.
- */
- { OMAP16XX_SRAM_BASE, OMAP16XX_SRAM_START, OMAP5912_SRAM_SIZE + 0x800, MT_DEVICE }
-};
-#endif
-
-static int initialized = 0;
-
-static void __init _omap_map_io(void)
-{
- initialized = 1;
-
- /* We have to initialize the IO space mapping before we can run
- * cpu_is_omapxxx() macros. */
- iotable_init(omap_io_desc, ARRAY_SIZE(omap_io_desc));
- omap_check_revision();
-
-#ifdef CONFIG_ARCH_OMAP730
- if (cpu_is_omap730()) {
- iotable_init(omap730_io_desc, ARRAY_SIZE(omap730_io_desc));
- }
-#endif
-#ifdef CONFIG_ARCH_OMAP1510
- if (cpu_is_omap1510()) {
- iotable_init(omap1510_io_desc, ARRAY_SIZE(omap1510_io_desc));
- }
-#endif
-#if defined(CONFIG_ARCH_OMAP16XX)
- if (cpu_is_omap1610() || cpu_is_omap1710()) {
- iotable_init(omap1610_io_desc, ARRAY_SIZE(omap1610_io_desc));
- }
- if (cpu_is_omap5912()) {
- iotable_init(omap5912_io_desc, ARRAY_SIZE(omap5912_io_desc));
- }
-#endif
-
- /* REVISIT: Refer to OMAP5910 Errata, Advisory SYS_1: "Timeout Abort
- * on a Posted Write in the TIPB Bridge".
- */
- omap_writew(0x0, MPU_PUBLIC_TIPB_CNTL);
- omap_writew(0x0, MPU_PRIVATE_TIPB_CNTL);
-
- /* Must init clocks early to assure that timer interrupt works
- */
- clk_init();
-}
-
-/*
- * This should only get called from board specific init
- */
-void omap_map_io(void)
-{
- if (!initialized)
- _omap_map_io();
-}
-
-static inline unsigned int omap_serial_in(struct plat_serial8250_port *up,
- int offset)
-{
- offset <<= up->regshift;
- return (unsigned int)__raw_readb(up->membase + offset);
-}
-
-static inline void omap_serial_outp(struct plat_serial8250_port *p, int offset,
- int value)
-{
- offset <<= p->regshift;
- __raw_writeb(value, p->membase + offset);
-}
-
-/*
- * Internal UARTs need to be initialized for the 8250 autoconfig to work
- * properly. Note that the TX watermark initialization may not be needed
- * once the 8250.c watermark handling code is merged.
- */
-static void __init omap_serial_reset(struct plat_serial8250_port *p)
-{
- omap_serial_outp(p, UART_OMAP_MDR1, 0x07); /* disable UART */
- omap_serial_outp(p, UART_OMAP_SCR, 0x08); /* TX watermark */
- omap_serial_outp(p, UART_OMAP_MDR1, 0x00); /* enable UART */
-
- if (!cpu_is_omap1510()) {
- omap_serial_outp(p, UART_OMAP_SYSC, 0x01);
- while (!(omap_serial_in(p, UART_OMAP_SYSC) & 0x01));
- }
-}
-
-static struct plat_serial8250_port serial_platform_data[] = {
- {
- .membase = (char*)IO_ADDRESS(OMAP_UART1_BASE),
- .mapbase = (unsigned long)OMAP_UART1_BASE,
- .irq = INT_UART1,
- .flags = UPF_BOOT_AUTOCONF,
- .iotype = UPIO_MEM,
- .regshift = 2,
- .uartclk = OMAP16XX_BASE_BAUD * 16,
- },
- {
- .membase = (char*)IO_ADDRESS(OMAP_UART2_BASE),
- .mapbase = (unsigned long)OMAP_UART2_BASE,
- .irq = INT_UART2,
- .flags = UPF_BOOT_AUTOCONF,
- .iotype = UPIO_MEM,
- .regshift = 2,
- .uartclk = OMAP16XX_BASE_BAUD * 16,
- },
- {
- .membase = (char*)IO_ADDRESS(OMAP_UART3_BASE),
- .mapbase = (unsigned long)OMAP_UART3_BASE,
- .irq = INT_UART3,
- .flags = UPF_BOOT_AUTOCONF,
- .iotype = UPIO_MEM,
- .regshift = 2,
- .uartclk = OMAP16XX_BASE_BAUD * 16,
- },
- { },
-};
-
-static struct platform_device serial_device = {
- .name = "serial8250",
- .id = 0,
- .dev = {
- .platform_data = serial_platform_data,
- },
-};
-
-/*
- * Note that on Innovator-1510 UART2 pins conflict with USB2.
- * By default UART2 does not work on Innovator-1510 if you have
- * USB OHCI enabled. To use UART2, you must disable USB2 first.
- */
-void __init omap_serial_init(int ports[OMAP_MAX_NR_PORTS])
-{
- int i;
-
- if (cpu_is_omap730()) {
- serial_platform_data[0].regshift = 0;
- serial_platform_data[1].regshift = 0;
- serial_platform_data[0].irq = INT_730_UART_MODEM_1;
- serial_platform_data[1].irq = INT_730_UART_MODEM_IRDA_2;
- }
-
- if (cpu_is_omap1510()) {
- serial_platform_data[0].uartclk = OMAP1510_BASE_BAUD * 16;
- serial_platform_data[1].uartclk = OMAP1510_BASE_BAUD * 16;
- serial_platform_data[2].uartclk = OMAP1510_BASE_BAUD * 16;
- }
-
- for (i = 0; i < OMAP_MAX_NR_PORTS; i++) {
- unsigned char reg;
-
- if (ports[i] == 0) {
- serial_platform_data[i].membase = 0;
- serial_platform_data[i].mapbase = 0;
- continue;
- }
-
- switch (i) {
- case 0:
- if (cpu_is_omap1510()) {
- omap_cfg_reg(UART1_TX);
- omap_cfg_reg(UART1_RTS);
- if (machine_is_omap_innovator()) {
- reg = fpga_read(OMAP1510_FPGA_POWER);
- reg |= OMAP1510_FPGA_PCR_COM1_EN;
- fpga_write(reg, OMAP1510_FPGA_POWER);
- udelay(10);
- }
- }
- break;
- case 1:
- if (cpu_is_omap1510()) {
- omap_cfg_reg(UART2_TX);
- omap_cfg_reg(UART2_RTS);
- if (machine_is_omap_innovator()) {
- reg = fpga_read(OMAP1510_FPGA_POWER);
- reg |= OMAP1510_FPGA_PCR_COM2_EN;
- fpga_write(reg, OMAP1510_FPGA_POWER);
- udelay(10);
- }
- }
- break;
- case 2:
- if (cpu_is_omap1510()) {
- omap_cfg_reg(UART3_TX);
- omap_cfg_reg(UART3_RX);
- }
- if (cpu_is_omap1710()) {
- clk_enable(clk_get(0, "uart3_ck"));
- }
- break;
- }
- omap_serial_reset(&serial_platform_data[i]);
- }
-}
-
-static int __init omap_init(void)
-{
- return platform_device_register(&serial_device);
-}
-arch_initcall(omap_init);
-
-#define NO_LENGTH_CHECK 0xffffffff
-
-extern int omap_bootloader_tag_len;
-extern u8 omap_bootloader_tag[];
-
-struct omap_board_config_kernel *omap_board_config;
-int omap_board_config_size = 0;
-
-static const void *get_config(u16 tag, size_t len, int skip, size_t *len_out)
-{
- struct omap_board_config_kernel *kinfo = NULL;
- int i;
-
-#ifdef CONFIG_OMAP_BOOT_TAG
- struct omap_board_config_entry *info = NULL;
-
- if (omap_bootloader_tag_len > 4)
- info = (struct omap_board_config_entry *) omap_bootloader_tag;
- while (info != NULL) {
- u8 *next;
-
- if (info->tag == tag) {
- if (skip == 0)
- break;
- skip--;
- }
-
- if ((info->len & 0x03) != 0) {
- /* We bail out to avoid an alignment fault */
- printk(KERN_ERR "OMAP peripheral config: Length (%d) not word-aligned (tag %04x)\n",
- info->len, info->tag);
- return NULL;
- }
- next = (u8 *) info + sizeof(*info) + info->len;
- if (next >= omap_bootloader_tag + omap_bootloader_tag_len)
- info = NULL;
- else
- info = (struct omap_board_config_entry *) next;
- }
- if (info != NULL) {
- /* Check the length as a lame attempt to check for
- * binary inconsistancy. */
- if (len != NO_LENGTH_CHECK) {
- /* Word-align len */
- if (len & 0x03)
- len = (len + 3) & ~0x03;
- if (info->len != len) {
- printk(KERN_ERR "OMAP peripheral config: Length mismatch with tag %x (want %d, got %d)\n",
- tag, len, info->len);
- return NULL;
- }
- }
- if (len_out != NULL)
- *len_out = info->len;
- return info->data;
- }
-#endif
- /* Try to find the config from the board-specific structures
- * in the kernel. */
- for (i = 0; i < omap_board_config_size; i++) {
- if (omap_board_config[i].tag == tag) {
- kinfo = &omap_board_config[i];
- break;
- }
- }
- if (kinfo == NULL)
- return NULL;
- return kinfo->data;
-}
-
-const void *__omap_get_config(u16 tag, size_t len, int nr)
-{
- return get_config(tag, len, nr, NULL);
-}
-EXPORT_SYMBOL(__omap_get_config);
-
-const void *omap_get_var_config(u16 tag, size_t *len)
-{
- return get_config(tag, NO_LENGTH_CHECK, 0, len);
-}
-EXPORT_SYMBOL(omap_get_var_config);
-
-static int __init omap_add_serial_console(void)
-{
- const struct omap_uart_config *info;
-
- info = omap_get_config(OMAP_TAG_UART, struct omap_uart_config);
- if (info != NULL && info->console_uart) {
- static char speed[11], *opt = NULL;
-
- if (info->console_speed) {
- snprintf(speed, sizeof(speed), "%u", info->console_speed);
- opt = speed;
- }
- return add_preferred_console("ttyS", info->console_uart - 1, opt);
- }
- return 0;
-}
-console_initcall(omap_add_serial_console);
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