From c3dfdb0823213c81f60987c8a3770b89ea95cad6 Mon Sep 17 00:00:00 2001 From: Alexander Clouter Date: Fri, 6 Feb 2009 21:57:13 +0000 Subject: [ARM] orion5x: remove TS-78xx NOR support as it does not exist The TS-7800's M25P40 is not available to the kernel, it's used to load the initial bitstream onto the FPGA and so these hooks point to nothing and need to be removed. Signed-off-by: Alexander Clouter --- arch/arm/mach-orion5x/ts78xx-setup.c | 46 ------------------------------------ 1 file changed, 46 deletions(-) (limited to 'arch/arm/mach-orion5x') diff --git a/arch/arm/mach-orion5x/ts78xx-setup.c b/arch/arm/mach-orion5x/ts78xx-setup.c index 1368e9fd1a06..0cb34b9a6d87 100644 --- a/arch/arm/mach-orion5x/ts78xx-setup.c +++ b/arch/arm/mach-orion5x/ts78xx-setup.c @@ -11,7 +11,6 @@ #include #include #include -#include #include #include #include @@ -40,12 +39,6 @@ #define TS78XX_FPGA_REGS_RTC_CTRL (TS78XX_FPGA_REGS_VIRT_BASE | 0x808) #define TS78XX_FPGA_REGS_RTC_DATA (TS78XX_FPGA_REGS_VIRT_BASE | 0x80c) -/* - * 512kB NOR flash Device - */ -#define TS78XX_NOR_BOOT_BASE 0xff800000 -#define TS78XX_NOR_BOOT_SIZE SZ_512K - /***************************************************************************** * I/O Address Mapping ****************************************************************************/ @@ -64,41 +57,6 @@ void __init ts78xx_map_io(void) iotable_init(ts78xx_io_desc, ARRAY_SIZE(ts78xx_io_desc)); } -/***************************************************************************** - * 512kB NOR Boot Flash - the chip is a M25P40 - ****************************************************************************/ -static struct mtd_partition ts78xx_nor_boot_flash_resources[] = { - { - .name = "ts-bootrom", - .offset = 0, - /* only the first 256kB is used */ - .size = SZ_256K, - .mask_flags = MTD_WRITEABLE, - }, -}; - -static struct physmap_flash_data ts78xx_nor_boot_flash_data = { - .width = 1, - .parts = ts78xx_nor_boot_flash_resources, - .nr_parts = ARRAY_SIZE(ts78xx_nor_boot_flash_resources), -}; - -static struct resource ts78xx_nor_boot_flash_resource = { - .flags = IORESOURCE_MEM, - .start = TS78XX_NOR_BOOT_BASE, - .end = TS78XX_NOR_BOOT_BASE + TS78XX_NOR_BOOT_SIZE - 1, -}; - -static struct platform_device ts78xx_nor_boot_flash = { - .name = "physmap-flash", - .id = -1, - .dev = { - .platform_data = &ts78xx_nor_boot_flash_data, - }, - .num_resources = 1, - .resource = &ts78xx_nor_boot_flash_resource, -}; - /***************************************************************************** * Ethernet ****************************************************************************/ @@ -257,10 +215,6 @@ static void __init ts78xx_init(void) orion5x_uart1_init(); orion5x_xor_init(); - orion5x_setup_dev_boot_win(TS78XX_NOR_BOOT_BASE, - TS78XX_NOR_BOOT_SIZE); - platform_device_register(&ts78xx_nor_boot_flash); - if (!ts78xx_rtc_init()) printk(KERN_INFO "TS-78xx RTC not detected or enabled\n"); } -- cgit v1.2.3 From f54128609c4e7792fb52b03c3db0da78627ce607 Mon Sep 17 00:00:00 2001 From: Alexander Clouter Date: Fri, 6 Feb 2009 21:59:15 +0000 Subject: [ARM] orion5x: TS-78xx comment shifting moved the MPP comments to the mpp area of the platform code Signed-off-by: Alexander Clouter --- arch/arm/mach-orion5x/ts78xx-setup.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) (limited to 'arch/arm/mach-orion5x') diff --git a/arch/arm/mach-orion5x/ts78xx-setup.c b/arch/arm/mach-orion5x/ts78xx-setup.c index 0cb34b9a6d87..b194956518a2 100644 --- a/arch/arm/mach-orion5x/ts78xx-setup.c +++ b/arch/arm/mach-orion5x/ts78xx-setup.c @@ -181,6 +181,14 @@ static struct orion5x_mpp_mode ts78xx_mpp_modes[] __initdata = { { 17, MPP_UART }, { 18, MPP_UART }, { 19, MPP_UART }, + /* + * MPP[20] PCI Clock Out 1 + * MPP[21] PCI Clock Out 0 + * MPP[22] Unused + * MPP[23] Unused + * MPP[24] Unused + * MPP[25] Unused + */ { -1 }, }; @@ -195,15 +203,6 @@ static void __init ts78xx_init(void) orion5x_mpp_conf(ts78xx_mpp_modes); - /* - * MPP[20] PCI Clock Out 1 - * MPP[21] PCI Clock Out 0 - * MPP[22] Unused - * MPP[23] Unused - * MPP[24] Unused - * MPP[25] Unused - */ - /* * Configure peripherals. */ -- cgit v1.2.3 From 39008f959f4f3b60eecc5cec0ca077146c1f366b Mon Sep 17 00:00:00 2001 From: Alexander Clouter Date: Fri, 6 Feb 2009 22:16:55 +0000 Subject: [ARM] orion5x: TS-78xx support for 'hotplug' of FPGA devices the FPGA on the TS-7800 provides access to a number of devices and so we have to be careful when reprogramming it. As we are effectively turning a bus off/on we have to inform the kernel that it should stop using anything provided by the FPGA (currently only the RTC however the NAND, LCD, etc is to come) before it's reprogrammed. Once reprogramed, we can tell the kernel to (re)enable things by checking the FPGA ID against a lookup table for what a particular FPGA bitstream can provide. Signed-off-by: Alexander Clouter --- arch/arm/mach-orion5x/Kconfig | 1 + arch/arm/mach-orion5x/ts78xx-fpga.h | 27 ++++ arch/arm/mach-orion5x/ts78xx-setup.c | 251 +++++++++++++++++++++++++++-------- 3 files changed, 224 insertions(+), 55 deletions(-) create mode 100644 arch/arm/mach-orion5x/ts78xx-fpga.h (limited to 'arch/arm/mach-orion5x') diff --git a/arch/arm/mach-orion5x/Kconfig b/arch/arm/mach-orion5x/Kconfig index f59a8d0e0824..2c7035d8dcbf 100644 --- a/arch/arm/mach-orion5x/Kconfig +++ b/arch/arm/mach-orion5x/Kconfig @@ -71,6 +71,7 @@ config MACH_WRT350N_V2 config MACH_TS78XX bool "Technologic Systems TS-78xx" + select PM help Say 'Y' here if you want your kernel to support the Technologic Systems TS-78xx platform. diff --git a/arch/arm/mach-orion5x/ts78xx-fpga.h b/arch/arm/mach-orion5x/ts78xx-fpga.h new file mode 100644 index 000000000000..0b8e30faff14 --- /dev/null +++ b/arch/arm/mach-orion5x/ts78xx-fpga.h @@ -0,0 +1,27 @@ +#define FPGAID(_magic, _rev) ((_magic << 8) + _rev) + +/* + * get yer id's from http://ts78xx.digriz.org.uk/ + * do *not* make up your own or 'borrow' any! + */ +enum fpga_ids { + /* Technologic Systems */ + TS7800_REV_B = FPGAID(0x00b480, 0x03), +}; + +struct fpga_device { + unsigned present:1; + unsigned init:1; +}; + +struct fpga_devices { + /* Technologic Systems */ + struct fpga_device ts_rtc; +}; + +struct ts78xx_fpga_data { + unsigned int id; + int state; + + struct fpga_devices supports; +}; diff --git a/arch/arm/mach-orion5x/ts78xx-setup.c b/arch/arm/mach-orion5x/ts78xx-setup.c index b194956518a2..baa25d0fd5c9 100644 --- a/arch/arm/mach-orion5x/ts78xx-setup.c +++ b/arch/arm/mach-orion5x/ts78xx-setup.c @@ -10,6 +10,7 @@ #include #include +#include #include #include #include @@ -20,6 +21,7 @@ #include #include "common.h" #include "mpp.h" +#include "ts78xx-fpga.h" /***************************************************************************** * TS-78xx Info @@ -32,12 +34,11 @@ #define TS78XX_FPGA_REGS_VIRT_BASE 0xff900000 #define TS78XX_FPGA_REGS_SIZE SZ_1M -#define TS78XX_FPGA_REGS_SYSCON_ID (TS78XX_FPGA_REGS_VIRT_BASE | 0x000) -#define TS78XX_FPGA_REGS_SYSCON_LCDI (TS78XX_FPGA_REGS_VIRT_BASE | 0x004) -#define TS78XX_FPGA_REGS_SYSCON_LCDO (TS78XX_FPGA_REGS_VIRT_BASE | 0x008) - -#define TS78XX_FPGA_REGS_RTC_CTRL (TS78XX_FPGA_REGS_VIRT_BASE | 0x808) -#define TS78XX_FPGA_REGS_RTC_DATA (TS78XX_FPGA_REGS_VIRT_BASE | 0x80c) +static struct ts78xx_fpga_data ts78xx_fpga = { + .id = 0, + .state = 1, +/* .supports = ... - populated by ts78xx_fpga_supports() */ +}; /***************************************************************************** * I/O Address Mapping @@ -64,32 +65,42 @@ static struct mv643xx_eth_platform_data ts78xx_eth_data = { .phy_addr = MV643XX_ETH_PHY_ADDR(0), }; +/***************************************************************************** + * SATA + ****************************************************************************/ +static struct mv_sata_platform_data ts78xx_sata_data = { + .n_ports = 2, +}; + /***************************************************************************** * RTC M48T86 - nicked^Wborrowed from arch/arm/mach-ep93xx/ts72xx.c ****************************************************************************/ #ifdef CONFIG_RTC_DRV_M48T86 -static unsigned char ts78xx_rtc_readbyte(unsigned long addr) +#define TS_RTC_CTRL (TS78XX_FPGA_REGS_VIRT_BASE | 0x808) +#define TS_RTC_DATA (TS78XX_FPGA_REGS_VIRT_BASE | 0x80c) + +static unsigned char ts78xx_ts_rtc_readbyte(unsigned long addr) { - writeb(addr, TS78XX_FPGA_REGS_RTC_CTRL); - return readb(TS78XX_FPGA_REGS_RTC_DATA); + writeb(addr, TS_RTC_CTRL); + return readb(TS_RTC_DATA); } -static void ts78xx_rtc_writebyte(unsigned char value, unsigned long addr) +static void ts78xx_ts_rtc_writebyte(unsigned char value, unsigned long addr) { - writeb(addr, TS78XX_FPGA_REGS_RTC_CTRL); - writeb(value, TS78XX_FPGA_REGS_RTC_DATA); + writeb(addr, TS_RTC_CTRL); + writeb(value, TS_RTC_DATA); } -static struct m48t86_ops ts78xx_rtc_ops = { - .readbyte = ts78xx_rtc_readbyte, - .writebyte = ts78xx_rtc_writebyte, +static struct m48t86_ops ts78xx_ts_rtc_ops = { + .readbyte = ts78xx_ts_rtc_readbyte, + .writebyte = ts78xx_ts_rtc_writebyte, }; -static struct platform_device ts78xx_rtc_device = { +static struct platform_device ts78xx_ts_rtc_device = { .name = "rtc-m48t86", .id = -1, .dev = { - .platform_data = &ts78xx_rtc_ops, + .platform_data = &ts78xx_ts_rtc_ops, }, .num_resources = 0, }; @@ -104,59 +115,185 @@ static struct platform_device ts78xx_rtc_device = { * TODO: track down a guinea pig without an RTC to see if we can work out a * better RTC detection routine */ -static int __init ts78xx_rtc_init(void) +static int ts78xx_ts_rtc_load(void) { unsigned char tmp_rtc0, tmp_rtc1; - tmp_rtc0 = ts78xx_rtc_readbyte(126); - tmp_rtc1 = ts78xx_rtc_readbyte(127); - - ts78xx_rtc_writebyte(0x00, 126); - ts78xx_rtc_writebyte(0x55, 127); - if (ts78xx_rtc_readbyte(127) == 0x55) { - ts78xx_rtc_writebyte(0xaa, 127); - if (ts78xx_rtc_readbyte(127) == 0xaa - && ts78xx_rtc_readbyte(126) == 0x00) { - ts78xx_rtc_writebyte(tmp_rtc0, 126); - ts78xx_rtc_writebyte(tmp_rtc1, 127); - platform_device_register(&ts78xx_rtc_device); - return 1; + tmp_rtc0 = ts78xx_ts_rtc_readbyte(126); + tmp_rtc1 = ts78xx_ts_rtc_readbyte(127); + + ts78xx_ts_rtc_writebyte(0x00, 126); + ts78xx_ts_rtc_writebyte(0x55, 127); + if (ts78xx_ts_rtc_readbyte(127) == 0x55) { + ts78xx_ts_rtc_writebyte(0xaa, 127); + if (ts78xx_ts_rtc_readbyte(127) == 0xaa + && ts78xx_ts_rtc_readbyte(126) == 0x00) { + ts78xx_ts_rtc_writebyte(tmp_rtc0, 126); + ts78xx_ts_rtc_writebyte(tmp_rtc1, 127); + if (ts78xx_fpga.supports.ts_rtc.init == 0) { + ts78xx_fpga.supports.ts_rtc.init = 1; + platform_device_register(&ts78xx_ts_rtc_device); + } else + platform_device_add(&ts78xx_ts_rtc_device); + return 0; } } - return 0; + ts78xx_fpga.supports.ts_rtc.present = 0; + return -ENODEV; }; + +static void ts78xx_ts_rtc_unload(void) +{ + platform_device_del(&ts78xx_ts_rtc_device); +} #else -static int __init ts78xx_rtc_init(void) +static int ts78xx_ts_rtc_load(void) { return 0; } + +static void ts78xx_ts_rtc_unload(void) +{ +} #endif /***************************************************************************** - * SATA + * FPGA 'hotplug' support code ****************************************************************************/ -static struct mv_sata_platform_data ts78xx_sata_data = { - .n_ports = 2, +static void ts78xx_fpga_devices_zero_init(void) +{ + ts78xx_fpga.supports.ts_rtc.init = 0; +} + +static void ts78xx_fpga_supports(void) +{ + /* TODO: put this 'table' into ts78xx-fpga.h */ + switch (ts78xx_fpga.id) { + case TS7800_REV_B: + ts78xx_fpga.supports.ts_rtc.present = 1; + break; + default: + ts78xx_fpga.supports.ts_rtc.present = 0; + } +} + +static int ts78xx_fpga_load_devices(void) +{ + int tmp, ret = 0; + + if (ts78xx_fpga.supports.ts_rtc.present == 1) { + tmp = ts78xx_ts_rtc_load(); + if (tmp) + printk(KERN_INFO "TS-78xx RTC not detected or enabled\n"); + ret |= tmp; + } + + return ret; +} + +static int ts78xx_fpga_unload_devices(void) +{ + int ret = 0; + + if (ts78xx_fpga.supports.ts_rtc.present == 1) + ts78xx_ts_rtc_unload(); + + return ret; +} + +static int ts78xx_fpga_load(void) +{ + ts78xx_fpga.id = readl(TS78XX_FPGA_REGS_VIRT_BASE); + + printk(KERN_INFO "TS-78xx FPGA: magic=0x%.6x, rev=0x%.2x\n", + (ts78xx_fpga.id >> 8) & 0xffffff, + ts78xx_fpga.id & 0xff); + + ts78xx_fpga_supports(); + + if (ts78xx_fpga_load_devices()) { + ts78xx_fpga.state = -1; + return -EBUSY; + } + + return 0; }; -/***************************************************************************** - * print some information regarding the board - ****************************************************************************/ -static void __init ts78xx_print_board_id(void) -{ - unsigned int board_info; - - board_info = readl(TS78XX_FPGA_REGS_SYSCON_ID); - printk(KERN_INFO "TS-78xx Info: FPGA rev=%.2x, Board Magic=%.6x, ", - board_info & 0xff, - (board_info >> 8) & 0xffffff); - board_info = readl(TS78XX_FPGA_REGS_SYSCON_LCDI); - printk("JP1=%d, JP2=%d\n", - (board_info >> 30) & 0x1, - (board_info >> 31) & 0x1); +static int ts78xx_fpga_unload(void) +{ + unsigned int fpga_id; + + fpga_id = readl(TS78XX_FPGA_REGS_VIRT_BASE); + + /* + * There does not seem to be a feasible way to block access to the GPIO + * pins from userspace (/dev/mem). This if clause should hopefully warn + * those foolish enough not to follow 'policy' :) + * + * UrJTAG SVN since r1381 can be used to reprogram the FPGA + */ + if (ts78xx_fpga.id != fpga_id) { + printk(KERN_ERR "TS-78xx FPGA: magic/rev mismatch\n" + "TS-78xx FPGA: was 0x%.6x/%.2x but now 0x%.6x/%.2x\n", + (ts78xx_fpga.id >> 8) & 0xffffff, ts78xx_fpga.id & 0xff, + (fpga_id >> 8) & 0xffffff, fpga_id & 0xff); + ts78xx_fpga.state = -1; + return -EBUSY; + } + + if (ts78xx_fpga_unload_devices()) { + ts78xx_fpga.state = -1; + return -EBUSY; + } + + return 0; }; +static ssize_t ts78xx_fpga_show(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + if (ts78xx_fpga.state < 0) + return sprintf(buf, "borked\n"); + + return sprintf(buf, "%s\n", (ts78xx_fpga.state) ? "online" : "offline"); +} + +static ssize_t ts78xx_fpga_store(struct kobject *kobj, + struct kobj_attribute *attr, const char *buf, size_t n) +{ + int value, ret; + + if (ts78xx_fpga.state < 0) { + printk(KERN_ERR "TS-78xx FPGA: borked, you must powercycle asap\n"); + return -EBUSY; + } + + if (strncmp(buf, "online", sizeof("online") - 1) == 0) + value = 1; + else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0) + value = 0; + else { + printk(KERN_ERR "ts78xx_fpga_store: Invalid value\n"); + return -EINVAL; + } + + if (ts78xx_fpga.state == value) + return n; + + ret = (ts78xx_fpga.state == 0) + ? ts78xx_fpga_load() + : ts78xx_fpga_unload(); + + if (!(ret < 0)) + ts78xx_fpga.state = value; + + return n; +} + +static struct kobj_attribute ts78xx_fpga_attr = + __ATTR(ts78xx_fpga, 0644, ts78xx_fpga_show, ts78xx_fpga_store); + /***************************************************************************** * General Setup ****************************************************************************/ @@ -194,13 +331,13 @@ static struct orion5x_mpp_mode ts78xx_mpp_modes[] __initdata = { static void __init ts78xx_init(void) { + int ret; + /* * Setup basic Orion functions. Need to be called early. */ orion5x_init(); - ts78xx_print_board_id(); - orion5x_mpp_conf(ts78xx_mpp_modes); /* @@ -214,8 +351,12 @@ static void __init ts78xx_init(void) orion5x_uart1_init(); orion5x_xor_init(); - if (!ts78xx_rtc_init()) - printk(KERN_INFO "TS-78xx RTC not detected or enabled\n"); + /* FPGA init */ + ts78xx_fpga_devices_zero_init(); + ret = ts78xx_fpga_load(); + ret = sysfs_create_file(power_kobj, &ts78xx_fpga_attr.attr); + if (ret) + printk(KERN_ERR "sysfs_create_file failed: %d\n", ret); } MACHINE_START(TS78XX, "Technologic Systems TS-78xx SBC") -- cgit v1.2.3 From f5273fa3102fa4c25819f3034b8834c37d3e62a3 Mon Sep 17 00:00:00 2001 From: Alexander Clouter Date: Mon, 23 Feb 2009 22:37:36 +0000 Subject: [ARM] orion5x: ts78xx make more bulletproof the RTC load/unload code Added checks to the platform_device_(register|add) calls so that if a device failed to load it would then not later be unloaded; also added the hooks so that it would not try to unload when the RTC driver support is compiled out. Signed-off-by: Alexander Clouter Signed-off-by: Nicolas Pitre --- arch/arm/mach-orion5x/ts78xx-setup.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) (limited to 'arch/arm/mach-orion5x') diff --git a/arch/arm/mach-orion5x/ts78xx-setup.c b/arch/arm/mach-orion5x/ts78xx-setup.c index baa25d0fd5c9..778b11860ee6 100644 --- a/arch/arm/mach-orion5x/ts78xx-setup.c +++ b/arch/arm/mach-orion5x/ts78xx-setup.c @@ -117,6 +117,7 @@ static struct platform_device ts78xx_ts_rtc_device = { */ static int ts78xx_ts_rtc_load(void) { + int rc; unsigned char tmp_rtc0, tmp_rtc1; tmp_rtc0 = ts78xx_ts_rtc_readbyte(126); @@ -130,16 +131,18 @@ static int ts78xx_ts_rtc_load(void) && ts78xx_ts_rtc_readbyte(126) == 0x00) { ts78xx_ts_rtc_writebyte(tmp_rtc0, 126); ts78xx_ts_rtc_writebyte(tmp_rtc1, 127); + if (ts78xx_fpga.supports.ts_rtc.init == 0) { - ts78xx_fpga.supports.ts_rtc.init = 1; - platform_device_register(&ts78xx_ts_rtc_device); + rc = platform_device_register(&ts78xx_ts_rtc_device); + if (!rc) + ts78xx_fpga.supports.ts_rtc.init = 1; } else - platform_device_add(&ts78xx_ts_rtc_device); - return 0; + rc = platform_device_add(&ts78xx_ts_rtc_device); + + return rc; } } - ts78xx_fpga.supports.ts_rtc.present = 0; return -ENODEV; }; @@ -150,7 +153,7 @@ static void ts78xx_ts_rtc_unload(void) #else static int ts78xx_ts_rtc_load(void) { - return 0; + return -ENODEV; } static void ts78xx_ts_rtc_unload(void) @@ -184,8 +187,11 @@ static int ts78xx_fpga_load_devices(void) if (ts78xx_fpga.supports.ts_rtc.present == 1) { tmp = ts78xx_ts_rtc_load(); - if (tmp) - printk(KERN_INFO "TS-78xx RTC not detected or enabled\n"); + if (tmp) { + printk(KERN_INFO "TS-78xx RTC" + " not detected or enabled\n"); + ts78xx_fpga.supports.ts_rtc.present = 0; + } ret |= tmp; } -- cgit v1.2.3 From 673492a800b14a9aac5d9d1af120334b9578a23c Mon Sep 17 00:00:00 2001 From: Alexander Clouter Date: Mon, 23 Feb 2009 22:38:50 +0000 Subject: [ARM] orion5x: ts78xx amend RTC registering to not depend on ifdef's amend RTC registering to not depend on ifdef's Signed-off-by: Alexander Clouter Signed-off-by: Nicolas Pitre --- arch/arm/mach-orion5x/ts78xx-setup.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) (limited to 'arch/arm/mach-orion5x') diff --git a/arch/arm/mach-orion5x/ts78xx-setup.c b/arch/arm/mach-orion5x/ts78xx-setup.c index 778b11860ee6..640b44db5a3f 100644 --- a/arch/arm/mach-orion5x/ts78xx-setup.c +++ b/arch/arm/mach-orion5x/ts78xx-setup.c @@ -75,7 +75,6 @@ static struct mv_sata_platform_data ts78xx_sata_data = { /***************************************************************************** * RTC M48T86 - nicked^Wborrowed from arch/arm/mach-ep93xx/ts72xx.c ****************************************************************************/ -#ifdef CONFIG_RTC_DRV_M48T86 #define TS_RTC_CTRL (TS78XX_FPGA_REGS_VIRT_BASE | 0x808) #define TS_RTC_DATA (TS78XX_FPGA_REGS_VIRT_BASE | 0x80c) @@ -150,16 +149,6 @@ static void ts78xx_ts_rtc_unload(void) { platform_device_del(&ts78xx_ts_rtc_device); } -#else -static int ts78xx_ts_rtc_load(void) -{ - return -ENODEV; -} - -static void ts78xx_ts_rtc_unload(void) -{ -} -#endif /***************************************************************************** * FPGA 'hotplug' support code @@ -188,8 +177,7 @@ static int ts78xx_fpga_load_devices(void) if (ts78xx_fpga.supports.ts_rtc.present == 1) { tmp = ts78xx_ts_rtc_load(); if (tmp) { - printk(KERN_INFO "TS-78xx RTC" - " not detected or enabled\n"); + printk(KERN_INFO "TS-78xx: RTC not registered\n"); ts78xx_fpga.supports.ts_rtc.present = 0; } ret |= tmp; -- cgit v1.2.3 From 75bb6b9aab3255f440ef4e72a31978d1681105d6 Mon Sep 17 00:00:00 2001 From: Alexander Clouter Date: Mon, 23 Feb 2009 22:40:01 +0000 Subject: [ARM] orion5x: ts78xx add NAND support via plat_nand ts78xx add NAND support via plat_nand Signed-off-by: Alexander Clouter Signed-off-by: Nicolas Pitre --- arch/arm/mach-orion5x/ts78xx-fpga.h | 1 + arch/arm/mach-orion5x/ts78xx-setup.c | 132 +++++++++++++++++++++++++++++++++++ 2 files changed, 133 insertions(+) (limited to 'arch/arm/mach-orion5x') diff --git a/arch/arm/mach-orion5x/ts78xx-fpga.h b/arch/arm/mach-orion5x/ts78xx-fpga.h index 0b8e30faff14..e2c503c7807e 100644 --- a/arch/arm/mach-orion5x/ts78xx-fpga.h +++ b/arch/arm/mach-orion5x/ts78xx-fpga.h @@ -17,6 +17,7 @@ struct fpga_device { struct fpga_devices { /* Technologic Systems */ struct fpga_device ts_rtc; + struct fpga_device ts_nand; }; struct ts78xx_fpga_data { diff --git a/arch/arm/mach-orion5x/ts78xx-setup.c b/arch/arm/mach-orion5x/ts78xx-setup.c index 640b44db5a3f..a6eec4e49424 100644 --- a/arch/arm/mach-orion5x/ts78xx-setup.c +++ b/arch/arm/mach-orion5x/ts78xx-setup.c @@ -15,6 +15,8 @@ #include #include #include +#include +#include #include #include #include @@ -150,12 +152,130 @@ static void ts78xx_ts_rtc_unload(void) platform_device_del(&ts78xx_ts_rtc_device); } +/***************************************************************************** + * NAND Flash + ****************************************************************************/ +#define TS_NAND_CTRL (TS78XX_FPGA_REGS_VIRT_BASE | 0x800) /* VIRT */ +#define TS_NAND_DATA (TS78XX_FPGA_REGS_PHYS_BASE | 0x804) /* PHYS */ + +/* + * hardware specific access to control-lines + * + * ctrl: + * NAND_NCE: bit 0 -> bit 2 + * NAND_CLE: bit 1 -> bit 1 + * NAND_ALE: bit 2 -> bit 0 + */ +static void ts78xx_ts_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, + unsigned int ctrl) +{ + struct nand_chip *this = mtd->priv; + + if (ctrl & NAND_CTRL_CHANGE) { + unsigned char bits; + + bits = (ctrl & NAND_NCE) << 2; + bits |= ctrl & NAND_CLE; + bits |= (ctrl & NAND_ALE) >> 2; + + writeb((readb(TS_NAND_CTRL) & ~0x7) | bits, TS_NAND_CTRL); + } + + if (cmd != NAND_CMD_NONE) + writeb(cmd, this->IO_ADDR_W); +} + +static int ts78xx_ts_nand_dev_ready(struct mtd_info *mtd) +{ + return readb(TS_NAND_CTRL) & 0x20; +} + +const char *ts_nand_part_probes[] = { "cmdlinepart", NULL }; + +static struct mtd_partition ts78xx_ts_nand_parts[] = { + { + .name = "mbr", + .offset = 0, + .size = SZ_128K, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "kernel", + .offset = MTDPART_OFS_APPEND, + .size = SZ_4M, + }, { + .name = "initrd", + .offset = MTDPART_OFS_APPEND, + .size = SZ_4M, + }, { + .name = "rootfs", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + } +}; + +static struct platform_nand_data ts78xx_ts_nand_data = { + .chip = { + .part_probe_types = ts_nand_part_probes, + .partitions = ts78xx_ts_nand_parts, + .nr_partitions = ARRAY_SIZE(ts78xx_ts_nand_parts), + .chip_delay = 15, + .options = NAND_USE_FLASH_BBT, + }, + .ctrl = { + /* + * The HW ECC offloading functions, used to give about a 9% + * performance increase for 'dd if=/dev/mtdblockX' and 5% for + * nanddump. This all however was changed by git commit + * e6cf5df1838c28bb060ac45b5585e48e71bbc740 so now there is + * no performance advantage to be had so we no longer bother + */ + .cmd_ctrl = ts78xx_ts_nand_cmd_ctrl, + .dev_ready = ts78xx_ts_nand_dev_ready, + }, +}; + +static struct resource ts78xx_ts_nand_resources = { + .start = TS_NAND_DATA, + .end = TS_NAND_DATA + 4, + .flags = IORESOURCE_IO, +}; + +static struct platform_device ts78xx_ts_nand_device = { + .name = "gen_nand", + .id = -1, + .dev = { + .platform_data = &ts78xx_ts_nand_data, + }, + .resource = &ts78xx_ts_nand_resources, + .num_resources = 1, +}; + +static int ts78xx_ts_nand_load(void) +{ + int rc; + + if (ts78xx_fpga.supports.ts_nand.init == 0) { + rc = platform_device_register(&ts78xx_ts_nand_device); + if (!rc) + ts78xx_fpga.supports.ts_nand.init = 1; + } else + rc = platform_device_add(&ts78xx_ts_nand_device); + + return rc; +}; + +static void ts78xx_ts_nand_unload(void) +{ + platform_device_del(&ts78xx_ts_nand_device); +} + /***************************************************************************** * FPGA 'hotplug' support code ****************************************************************************/ static void ts78xx_fpga_devices_zero_init(void) { ts78xx_fpga.supports.ts_rtc.init = 0; + ts78xx_fpga.supports.ts_nand.init = 0; } static void ts78xx_fpga_supports(void) @@ -164,9 +284,11 @@ static void ts78xx_fpga_supports(void) switch (ts78xx_fpga.id) { case TS7800_REV_B: ts78xx_fpga.supports.ts_rtc.present = 1; + ts78xx_fpga.supports.ts_nand.present = 1; break; default: ts78xx_fpga.supports.ts_rtc.present = 0; + ts78xx_fpga.supports.ts_nand.present = 0; } } @@ -182,6 +304,14 @@ static int ts78xx_fpga_load_devices(void) } ret |= tmp; } + if (ts78xx_fpga.supports.ts_nand.present == 1) { + tmp = ts78xx_ts_nand_load(); + if (tmp) { + printk(KERN_INFO "TS-78xx: NAND not registered\n"); + ts78xx_fpga.supports.ts_nand.present = 0; + } + ret |= tmp; + } return ret; } @@ -192,6 +322,8 @@ static int ts78xx_fpga_unload_devices(void) if (ts78xx_fpga.supports.ts_rtc.present == 1) ts78xx_ts_rtc_unload(); + if (ts78xx_fpga.supports.ts_nand.present == 1) + ts78xx_ts_nand_unload(); return ret; } -- cgit v1.2.3 From f45964ed6971db2e7ae6cb9b164def1d23b46612 Mon Sep 17 00:00:00 2001 From: Saeed Bishara Date: Mon, 2 Mar 2009 17:30:36 +0200 Subject: [ARM] orion5x: pass dram mbus data to xor driver This data should be passed to the xor driver in order to initialize the address decoding windows of the xor unit. without this patch, the self tests of the xor will fail unless the address decoding windows were initialized by the boot loader. Signed-off-by: Saeed Bishara Signed-off-by: Nicolas Pitre --- arch/arm/mach-orion5x/common.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch/arm/mach-orion5x') diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c index 0a623379789f..8a0e49d84256 100644 --- a/arch/arm/mach-orion5x/common.c +++ b/arch/arm/mach-orion5x/common.c @@ -431,6 +431,10 @@ void __init orion5x_uart1_init(void) /***************************************************************************** * XOR engine ****************************************************************************/ +struct mv_xor_platform_shared_data orion5x_xor_shared_data = { + .dram = &orion5x_mbus_dram_info, +}; + static struct resource orion5x_xor_shared_resources[] = { { .name = "xor low", @@ -448,6 +452,9 @@ static struct resource orion5x_xor_shared_resources[] = { static struct platform_device orion5x_xor_shared = { .name = MV_XOR_SHARED_NAME, .id = 0, + .dev = { + .platform_data = &orion5x_xor_shared_data, + }, .num_resources = ARRAY_SIZE(orion5x_xor_shared_resources), .resource = orion5x_xor_shared_resources, }; -- cgit v1.2.3 From 195f4a170eaeb8ef37c73e02adef2579168e9287 Mon Sep 17 00:00:00 2001 From: Alexander Clouter Date: Wed, 4 Mar 2009 21:30:51 +0000 Subject: [ARM] orion5x: added a new FPGA ID set for the TS-78xx Stefan Agner found his board comes with 0x00b480/0x02 but the main board also has Rev B printed on it like my 0x00b480/0x03. Some light enum renaming was needed but it was to be expected. Signed-off-by: Alexander Clouter Signed-off-by: Nicolas Pitre --- arch/arm/mach-orion5x/ts78xx-fpga.h | 3 ++- arch/arm/mach-orion5x/ts78xx-setup.c | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) (limited to 'arch/arm/mach-orion5x') diff --git a/arch/arm/mach-orion5x/ts78xx-fpga.h b/arch/arm/mach-orion5x/ts78xx-fpga.h index e2c503c7807e..0a314ddef658 100644 --- a/arch/arm/mach-orion5x/ts78xx-fpga.h +++ b/arch/arm/mach-orion5x/ts78xx-fpga.h @@ -6,7 +6,8 @@ */ enum fpga_ids { /* Technologic Systems */ - TS7800_REV_B = FPGAID(0x00b480, 0x03), + TS7800_REV_B2 = FPGAID(0x00b480, 0x02), + TS7800_REV_B3 = FPGAID(0x00b480, 0x03), }; struct fpga_device { diff --git a/arch/arm/mach-orion5x/ts78xx-setup.c b/arch/arm/mach-orion5x/ts78xx-setup.c index a6eec4e49424..f5191ddea085 100644 --- a/arch/arm/mach-orion5x/ts78xx-setup.c +++ b/arch/arm/mach-orion5x/ts78xx-setup.c @@ -282,7 +282,8 @@ static void ts78xx_fpga_supports(void) { /* TODO: put this 'table' into ts78xx-fpga.h */ switch (ts78xx_fpga.id) { - case TS7800_REV_B: + case TS7800_REV_B2: + case TS7800_REV_B3: ts78xx_fpga.supports.ts_rtc.present = 1; ts78xx_fpga.supports.ts_nand.present = 1; break; -- cgit v1.2.3 From ace14b82633960a2b6bf6a0b2640c63872a65562 Mon Sep 17 00:00:00 2001 From: Martin Michlmayr Date: Tue, 10 Mar 2009 08:59:58 +0100 Subject: [ARM] Orion: Fix some typos in the DNS-323 support code Fix some typos in the DNS-323 support code. Signed-off-by: Martin Michlmayr Signed-off-by: Nicolas Pitre --- arch/arm/mach-orion5x/dns323-setup.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/arm/mach-orion5x') diff --git a/arch/arm/mach-orion5x/dns323-setup.c b/arch/arm/mach-orion5x/dns323-setup.c index 0722d6510df1..b31ca4cef365 100644 --- a/arch/arm/mach-orion5x/dns323-setup.c +++ b/arch/arm/mach-orion5x/dns323-setup.c @@ -76,7 +76,7 @@ static int __init dns323_dev_id(void) static int __init dns323_pci_init(void) { - /* The 5182 doesn't really use it's PCI bus, and initialising PCI + /* The 5182 doesn't really use its PCI bus, and initialising PCI * gets in the way of initialising the SATA controller. */ if (machine_is_dns323() && dns323_dev_id() != MV88F5182_DEV_ID) @@ -418,7 +418,7 @@ static void __init dns323_init(void) orion5x_i2c_init(); orion5x_uart0_init(); - /* The 5182 has it's SATA controller on-chip, and needs it's own little + /* The 5182 has its SATA controller on-chip, and needs its own little * init routine. */ if (dns323_dev_id() == MV88F5182_DEV_ID) -- cgit v1.2.3