diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/core/Kconfig | 16 | ||||
| -rw-r--r-- | drivers/mtd/nand/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/net/Makefile | 1 | ||||
| -rw-r--r-- | drivers/net/ks8695eth.c | 229 | ||||
| -rw-r--r-- | drivers/serial/Makefile | 1 | ||||
| -rw-r--r-- | drivers/serial/serial.c | 2 | ||||
| -rw-r--r-- | drivers/serial/serial_ks8695.c | 121 | ||||
| -rw-r--r-- | drivers/video/Makefile | 1 | ||||
| -rw-r--r-- | drivers/video/mb86r0xgdc.c | 168 | ||||
| -rw-r--r-- | drivers/watchdog/Makefile | 1 | ||||
| -rw-r--r-- | drivers/watchdog/tnetv107x_wdt.c | 165 |
11 files changed, 7 insertions, 704 deletions
diff --git a/drivers/core/Kconfig b/drivers/core/Kconfig index f0d6110..75d182d 100644 --- a/drivers/core/Kconfig +++ b/drivers/core/Kconfig @@ -1,6 +1,5 @@ config DM bool "Enable Driver Model" - depends on !SPL_BUILD help This config option enables Driver Model. This brings in the core support, including scanning of platform data on start-up. If @@ -22,31 +21,28 @@ config SPL_DM config DM_WARN bool "Enable warnings in driver model" + depends on DM + default y help The dm_warn() function can use up quite a bit of space for its strings. By default this is disabled for SPL builds to save space. This will cause dm_warn() to be compiled out - it will do nothing when called. - depends on DM - default y if !SPL_BUILD - default n if SPL_BUILD config DM_DEVICE_REMOVE bool "Support device removal" + depends on DM + default y help We can save some code space by dropping support for removing a device. This is not normally required in SPL, so by default this option is disabled for SPL. - depends on DM - default y if !SPL_BUILD - default n if SPL_BUILD config DM_STDIO bool "Support stdio registration" + depends on DM + default y help Normally serial drivers register with stdio so that they can be used as normal output devices. In SPL we don't normally use stdio, so we can omit this feature. - depends on DM - default y if !SPL_BUILD - default n if SPL_BUILD diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index c242214..72825c3 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -6,8 +6,6 @@ config SYS_NAND_SELF_INIT This option, if enabled, provides more flexible and linux-like NAND initialization process. -if !SPL_BUILD - config NAND_DENALI bool "Support Denali NAND controller" select SYS_NAND_SELF_INIT @@ -34,9 +32,7 @@ config NAND_DENALI_SPARE_AREA_SKIP_BYTES of OOB area before last ECC sector data starts. This is potentially used to preserve the bad block marker in the OOB area. -endif - -if SPL_BUILD +if SPL config SPL_NAND_DENALI bool "Support Denali NAND controller for SPL" diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 6e1ccdb..b8b0803 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -33,7 +33,6 @@ obj-$(CONFIG_FTMAC110) += ftmac110.o obj-$(CONFIG_FTMAC100) += ftmac100.o obj-$(CONFIG_GRETH) += greth.o obj-$(CONFIG_DRIVER_TI_KEYSTONE_NET) += keystone_net.o -obj-$(CONFIG_DRIVER_KS8695ETH) += ks8695eth.o obj-$(CONFIG_KS8851_MLL) += ks8851_mll.o obj-$(CONFIG_LAN91C96) += lan91c96.o obj-$(CONFIG_MACB) += macb.o diff --git a/drivers/net/ks8695eth.c b/drivers/net/ks8695eth.c deleted file mode 100644 index b4822e9..0000000 --- a/drivers/net/ks8695eth.c +++ /dev/null @@ -1,229 +0,0 @@ -/* - * ks8695eth.c -- KS8695 ethernet driver - * - * (C) Copyright 2004-2005, Greg Ungerer <greg.ungerer@opengear.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/****************************************************************************/ - -#include <common.h> -#include <malloc.h> -#include <net.h> -#include <asm/io.h> -#include <asm/arch/platform.h> - -/****************************************************************************/ - -/* - * Hardware register access to the KS8695 LAN ethernet port - * (well, it is the 4 port switch really). - */ -#define ks8695_read(a) *((volatile unsigned long *) (KS8695_IO_BASE + (a))) -#define ks8695_write(a,v) *((volatile unsigned long *) (KS8695_IO_BASE + (a))) = (v) - -/****************************************************************************/ - -/* - * Define the descriptor in-memory data structures. - */ -struct ks8695_txdesc { - uint32_t owner; - uint32_t ctrl; - uint32_t addr; - uint32_t next; -}; - -struct ks8695_rxdesc { - uint32_t status; - uint32_t ctrl; - uint32_t addr; - uint32_t next; -}; - -/****************************************************************************/ - -/* - * Allocate local data structures to use for receiving and sending - * packets. Just to keep it all nice and simple. - */ - -#define TXDESCS 4 -#define RXDESCS 4 -#define BUFSIZE 2048 - -volatile struct ks8695_txdesc ks8695_tx[TXDESCS] __attribute__((aligned(256))); -volatile struct ks8695_rxdesc ks8695_rx[RXDESCS] __attribute__((aligned(256))); -volatile uint8_t ks8695_bufs[BUFSIZE*(TXDESCS+RXDESCS)] __attribute__((aligned(2048)));; - -/****************************************************************************/ - -/* - * Ideally we want to use the MAC address stored in flash. - * But we do some sanity checks in case they are not present - * first. - */ -unsigned char eth_mac[] = { - 0x00, 0x13, 0xc6, 0x00, 0x00, 0x00 -}; - -void ks8695_getmac(void) -{ - unsigned char *fp; - int i; - - /* Check if flash MAC is valid */ - fp = (unsigned char *) 0x0201c000; - for (i = 0; (i < 6); i++) { - if ((fp[i] != 0) && (fp[i] != 0xff)) - break; - } - - /* If we found a valid looking MAC address then use it */ - if (i < 6) - memcpy(ð_mac[0], fp, 6); -} - -/****************************************************************************/ - -static int ks8695_eth_init(struct eth_device *dev, bd_t *bd) -{ - int i; - - debug ("%s(%d): eth_reset()\n", __FILE__, __LINE__); - - /* Reset the ethernet engines first */ - ks8695_write(KS8695_LAN_DMA_TX, 0x80000000); - ks8695_write(KS8695_LAN_DMA_RX, 0x80000000); - - ks8695_getmac(); - - /* Set MAC address */ - ks8695_write(KS8695_LAN_MAC_LOW, (eth_mac[5] | (eth_mac[4] << 8) | - (eth_mac[3] << 16) | (eth_mac[2] << 24))); - ks8695_write(KS8695_LAN_MAC_HIGH, (eth_mac[1] | (eth_mac[0] << 8))); - - /* Turn the 4 port switch on */ - i = ks8695_read(KS8695_SWITCH_CTRL0); - ks8695_write(KS8695_SWITCH_CTRL0, (i | 0x1)); - /* ks8695_write(KS8695_WAN_CONTROL, 0x3f000066); */ - - /* Initialize descriptor rings */ - for (i = 0; (i < TXDESCS); i++) { - ks8695_tx[i].owner = 0; - ks8695_tx[i].ctrl = 0; - ks8695_tx[i].addr = (uint32_t) &ks8695_bufs[i*BUFSIZE]; - ks8695_tx[i].next = (uint32_t) &ks8695_tx[i+1]; - } - ks8695_tx[TXDESCS-1].ctrl = 0x02000000; - ks8695_tx[TXDESCS-1].next = (uint32_t) &ks8695_tx[0]; - - for (i = 0; (i < RXDESCS); i++) { - ks8695_rx[i].status = 0x80000000; - ks8695_rx[i].ctrl = BUFSIZE - 4; - ks8695_rx[i].addr = (uint32_t) &ks8695_bufs[(i+TXDESCS)*BUFSIZE]; - ks8695_rx[i].next = (uint32_t) &ks8695_rx[i+1]; - } - ks8695_rx[RXDESCS-1].ctrl |= 0x00080000; - ks8695_rx[RXDESCS-1].next = (uint32_t) &ks8695_rx[0]; - - /* The KS8695 is pretty slow reseting the ethernets... */ - udelay(2000000); - - /* Enable the ethernet engine */ - ks8695_write(KS8695_LAN_TX_LIST, (uint32_t) &ks8695_tx[0]); - ks8695_write(KS8695_LAN_RX_LIST, (uint32_t) &ks8695_rx[0]); - ks8695_write(KS8695_LAN_DMA_TX, 0x3); - ks8695_write(KS8695_LAN_DMA_RX, 0x71); - ks8695_write(KS8695_LAN_DMA_RX_START, 0x1); - - printf("KS8695 ETHERNET: %pM\n", eth_mac); - return 0; -} - -/****************************************************************************/ - -static void ks8695_eth_halt(struct eth_device *dev) -{ - debug ("%s(%d): eth_halt()\n", __FILE__, __LINE__); - - /* Reset the ethernet engines */ - ks8695_write(KS8695_LAN_DMA_TX, 0x80000000); - ks8695_write(KS8695_LAN_DMA_RX, 0x80000000); -} - -/****************************************************************************/ - -static int ks8695_eth_recv(struct eth_device *dev) -{ - volatile struct ks8695_rxdesc *dp; - int i, len = 0; - - debug ("%s(%d): eth_rx()\n", __FILE__, __LINE__); - - for (i = 0; (i < RXDESCS); i++) { - dp= &ks8695_rx[i]; - if ((dp->status & 0x80000000) == 0) { - len = (dp->status & 0x7ff) - 4; - NetReceive((void *) dp->addr, len); - dp->status = 0x80000000; - ks8695_write(KS8695_LAN_DMA_RX_START, 0x1); - break; - } - } - - return len; -} - -/****************************************************************************/ - -static int ks8695_eth_send(struct eth_device *dev, void *packet, int len) -{ - volatile struct ks8695_txdesc *dp; - static int next = 0; - - debug ("%s(%d): eth_send(packet=%p,len=%d)\n", __FILE__, __LINE__, - packet, len); - - dp = &ks8695_tx[next]; - memcpy((void *) dp->addr, (void *) packet, len); - - if (len < 64) { - memset((void *) (dp->addr + len), 0, 64-len); - len = 64; - } - - dp->ctrl = len | 0xe0000000; - dp->owner = 0x80000000; - - ks8695_write(KS8695_LAN_DMA_TX, 0x3); - ks8695_write(KS8695_LAN_DMA_TX_START, 0x1); - - if (++next >= TXDESCS) - next = 0; - - return 0; -} - -/****************************************************************************/ - -int ks8695_eth_initialize(void) -{ - struct eth_device *dev; - - dev = malloc(sizeof(*dev)); - if (dev == NULL) - return -1; - memset(dev, 0, sizeof(*dev)); - - dev->iobase = KS8695_IO_BASE + KS8695_LAN_DMA_TX; - dev->init = ks8695_eth_init; - dev->halt = ks8695_eth_halt; - dev->send = ks8695_eth_send; - dev->recv = ks8695_eth_recv; - strcpy(dev->name, "ks8695eth"); - - eth_register(dev); - return 0; -} diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile index 63b0cbf..b385852 100644 --- a/drivers/serial/Makefile +++ b/drivers/serial/Makefile @@ -27,7 +27,6 @@ obj-$(CONFIG_OPENCORES_YANU) += opencores_yanu.o obj-$(CONFIG_SYS_NS16550) += ns16550.o obj-$(CONFIG_S5P) += serial_s5p.o obj-$(CONFIG_IMX_SERIAL) += serial_imx.o -obj-$(CONFIG_KS8695_SERIAL) += serial_ks8695.o obj-$(CONFIG_MAX3100_SERIAL) += serial_max3100.o obj-$(CONFIG_MXC_UART) += serial_mxc.o obj-$(CONFIG_PXA_SERIAL) += serial_pxa.o diff --git a/drivers/serial/serial.c b/drivers/serial/serial.c index 95c992a..9f78492 100644 --- a/drivers/serial/serial.c +++ b/drivers/serial/serial.c @@ -127,7 +127,6 @@ serial_initfunc(evb64260_serial_initialize); serial_initfunc(imx_serial_initialize); serial_initfunc(iop480_serial_initialize); serial_initfunc(jz_serial_initialize); -serial_initfunc(ks8695_serial_initialize); serial_initfunc(leon2_serial_initialize); serial_initfunc(leon3_serial_initialize); serial_initfunc(lh7a40x_serial_initialize); @@ -220,7 +219,6 @@ void serial_initialize(void) imx_serial_initialize(); iop480_serial_initialize(); jz_serial_initialize(); - ks8695_serial_initialize(); leon2_serial_initialize(); leon3_serial_initialize(); lh7a40x_serial_initialize(); diff --git a/drivers/serial/serial_ks8695.c b/drivers/serial/serial_ks8695.c deleted file mode 100644 index 13adabd..0000000 --- a/drivers/serial/serial_ks8695.c +++ /dev/null @@ -1,121 +0,0 @@ -/* - * serial.c -- KS8695 serial driver - * - * (C) Copyright 2004, Greg Ungerer <greg.ungerer@opengear.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/arch/platform.h> -#include <serial.h> -#include <linux/compiler.h> - -#ifndef CONFIG_SERIAL1 -#error "Bad: you didn't configure serial ..." -#endif - -DECLARE_GLOBAL_DATA_PTR; - -/* - * Define the UART hardware register access structure. - */ -struct ks8695uart { - unsigned int RX; /* 0x00 - Receive data (r) */ - unsigned int TX; /* 0x04 - Transmit data (w) */ - unsigned int FCR; /* 0x08 - Fifo Control (r/w) */ - unsigned int LCR; /* 0x0c - Line Control (r/w) */ - unsigned int MCR; /* 0x10 - Modem Control (r/w) */ - unsigned int LSR; /* 0x14 - Line Status (r/w) */ - unsigned int MSR; /* 0x18 - Modem Status (r/w) */ - unsigned int BD; /* 0x1c - Baud Rate (r/w) */ - unsigned int SR; /* 0x20 - Status (r/w) */ -}; - -#define KS8695_UART_ADDR ((void *) (KS8695_IO_BASE + KS8695_UART_RX_BUFFER)) -#define KS8695_UART_CLK 25000000 - - -/* - * Under some circumstances we want to be "quiet" and not issue any - * serial output - though we want u-boot to otherwise work and behave - * the same. By default be noisy. - */ -int serial_console = 1; - - -static void ks8695_serial_setbrg(void) -{ - volatile struct ks8695uart *uartp = KS8695_UART_ADDR; - - /* Set to global baud rate and 8 data bits, no parity, 1 stop bit*/ - uartp->BD = KS8695_UART_CLK / gd->baudrate; - uartp->LCR = KS8695_UART_LINEC_WLEN8; -} - -static int ks8695_serial_init(void) -{ - serial_console = 1; - serial_setbrg(); - return 0; -} - -static void ks8695_serial_raw_putc(const char c) -{ - volatile struct ks8695uart *uartp = KS8695_UART_ADDR; - int i; - - for (i = 0; (i < 0x100000); i++) { - if (uartp->LSR & KS8695_UART_LINES_TXFE) - break; - } - - uartp->TX = c; -} - -static void ks8695_serial_putc(const char c) -{ - if (serial_console) { - ks8695_serial_raw_putc(c); - if (c == '\n') - ks8695_serial_raw_putc('\r'); - } -} - -static int ks8695_serial_tstc(void) -{ - volatile struct ks8695uart *uartp = KS8695_UART_ADDR; - if (serial_console) - return ((uartp->LSR & KS8695_UART_LINES_RXFE) ? 1 : 0); - return 0; -} - -static int ks8695_serial_getc(void) -{ - volatile struct ks8695uart *uartp = KS8695_UART_ADDR; - - while ((uartp->LSR & KS8695_UART_LINES_RXFE) == 0) - ; - return (uartp->RX); -} - -static struct serial_device ks8695_serial_drv = { - .name = "ks8695_serial", - .start = ks8695_serial_init, - .stop = NULL, - .setbrg = ks8695_serial_setbrg, - .putc = ks8695_serial_putc, - .puts = default_serial_puts, - .getc = ks8695_serial_getc, - .tstc = ks8695_serial_tstc, -}; - -void ks8695_serial_initialize(void) -{ - serial_register(&ks8695_serial_drv); -} - -__weak struct serial_device *default_serial_console(void) -{ - return &ks8695_serial_drv; -} diff --git a/drivers/video/Makefile b/drivers/video/Makefile index af2d47b..22a316b 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -32,7 +32,6 @@ obj-$(CONFIG_VIDEO_IMX25LCDC) += imx25lcdc.o videomodes.o obj-$(CONFIG_VIDEO_LCD_HITACHI_TX18D42VM) += hitachi_tx18d42vm_lcd.o obj-$(CONFIG_VIDEO_LCD_SSD2828) += ssd2828.o obj-$(CONFIG_VIDEO_MB862xx) += mb862xx.o videomodes.o -obj-$(CONFIG_VIDEO_MB86R0xGDC) += mb86r0xgdc.o videomodes.o obj-$(CONFIG_VIDEO_MX3) += mx3fb.o videomodes.o obj-$(CONFIG_VIDEO_IPUV3) += mxc_ipuv3_fb.o ipu_common.o ipu_disp.o obj-$(CONFIG_VIDEO_MXS) += mxsfb.o videomodes.o diff --git a/drivers/video/mb86r0xgdc.c b/drivers/video/mb86r0xgdc.c deleted file mode 100644 index bb7a749..0000000 --- a/drivers/video/mb86r0xgdc.c +++ /dev/null @@ -1,168 +0,0 @@ -/* - * (C) Copyright 2010 - * Matthias Weisser <weisserm@arcor.de> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/* - * mb86r0xgdc.c - Graphic interface for Fujitsu MB86R0x integrated graphic - * controller. - */ - -#include <common.h> - -#include <malloc.h> -#include <asm/io.h> -#include <asm/arch/hardware.h> -#include <video_fb.h> -#include "videomodes.h" - -/* - * 4MB (at the end of system RAM) - */ -#define VIDEO_MEM_SIZE 0x400000 - -#define FB_SYNC_CLK_INV (1<<16) /* pixel clock inverted */ - -/* - * Graphic Device - */ -static GraphicDevice mb86r0x; - -static void dsp_init(struct mb86r0x_gdc_dsp *dsp, char *modestr, - u32 *videomem) -{ - struct ctfb_res_modes var_mode; - u32 dcm1, dcm2, dcm3; - u16 htp, hdp, hdb, hsp, vtr, vsp, vdp; - u8 hsw, vsw; - u32 l2m, l2em, l2oa0, l2da0, l2oa1, l2da1; - u16 l2dx, l2dy, l2wx, l2wy, l2ww, l2wh; - unsigned long div; - int bpp; - - bpp = video_get_params(&var_mode, modestr); - - if (bpp == 0) { - var_mode.xres = 640; - var_mode.yres = 480; - var_mode.pixclock = 39721; /* 25MHz */ - var_mode.left_margin = 48; - var_mode.right_margin = 16; - var_mode.upper_margin = 33; - var_mode.lower_margin = 10; - var_mode.hsync_len = 96; - var_mode.vsync_len = 2; - var_mode.sync = 0; - var_mode.vmode = 0; - bpp = 15; - } - - /* Fill memory with white */ - memset(videomem, 0xFF, var_mode.xres * var_mode.yres * 2); - - mb86r0x.winSizeX = var_mode.xres; - mb86r0x.winSizeY = var_mode.yres; - - /* LCD base clock is ~ 660MHZ. We do calculations in kHz */ - div = 660000 / (1000000000L / var_mode.pixclock); - if (div > 64) - div = 64; - if (0 == div) - div = 1; - - dcm1 = (div - 1) << 8; - dcm2 = 0x00000000; - if (var_mode.sync & FB_SYNC_CLK_INV) - dcm3 = 0x00000100; - else - dcm3 = 0x00000000; - - htp = var_mode.left_margin + var_mode.xres + - var_mode.hsync_len + var_mode.right_margin; - hdp = var_mode.xres; - hdb = var_mode.xres; - hsp = var_mode.xres + var_mode.right_margin; - hsw = var_mode.hsync_len; - - vsw = var_mode.vsync_len; - vtr = var_mode.upper_margin + var_mode.yres + - var_mode.vsync_len + var_mode.lower_margin; - vsp = var_mode.yres + var_mode.lower_margin; - vdp = var_mode.yres; - - l2m = ((var_mode.yres - 1) << (0)) | - (((var_mode.xres * 2) / 64) << (16)) | - ((1) << (31)); - - l2em = (1 << 0) | (1 << 1); - - l2oa0 = mb86r0x.frameAdrs; - l2da0 = mb86r0x.frameAdrs; - l2oa1 = mb86r0x.frameAdrs; - l2da1 = mb86r0x.frameAdrs; - l2dx = 0; - l2dy = 0; - l2wx = 0; - l2wy = 0; - l2ww = var_mode.xres; - l2wh = var_mode.yres - 1; - - writel(dcm1, &dsp->dcm1); - writel(dcm2, &dsp->dcm2); - writel(dcm3, &dsp->dcm3); - - writew(htp, &dsp->htp); - writew(hdp, &dsp->hdp); - writew(hdb, &dsp->hdb); - writew(hsp, &dsp->hsp); - writeb(hsw, &dsp->hsw); - - writeb(vsw, &dsp->vsw); - writew(vtr, &dsp->vtr); - writew(vsp, &dsp->vsp); - writew(vdp, &dsp->vdp); - - writel(l2m, &dsp->l2m); - writel(l2em, &dsp->l2em); - writel(l2oa0, &dsp->l2oa0); - writel(l2da0, &dsp->l2da0); - writel(l2oa1, &dsp->l2oa1); - writel(l2da1, &dsp->l2da1); - writew(l2dx, &dsp->l2dx); - writew(l2dy, &dsp->l2dy); - writew(l2wx, &dsp->l2wx); - writew(l2wy, &dsp->l2wy); - writew(l2ww, &dsp->l2ww); - writew(l2wh, &dsp->l2wh); - - writel(dcm1 | (1 << 18) | (1 << 31), &dsp->dcm1); -} - -void *video_hw_init(void) -{ - struct mb86r0x_gdc *gdc = (struct mb86r0x_gdc *) MB86R0x_GDC_BASE; - GraphicDevice *pGD = &mb86r0x; - char *s; - u32 *vid; - - memset(pGD, 0, sizeof(GraphicDevice)); - - pGD->gdfIndex = GDF_15BIT_555RGB; - pGD->gdfBytesPP = 2; - pGD->memSize = VIDEO_MEM_SIZE; - pGD->frameAdrs = PHYS_SDRAM + PHYS_SDRAM_SIZE - VIDEO_MEM_SIZE; - - vid = (u32 *)pGD->frameAdrs; - - s = getenv("videomode"); - if (s != NULL) - dsp_init(&gdc->dsp0, s, vid); - - s = getenv("videomode1"); - if (s != NULL) - dsp_init(&gdc->dsp1, s, vid); - - return pGD; -} diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index 1dc0f5a..482a4bd 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -10,7 +10,6 @@ obj-$(CONFIG_FTWDT010_WATCHDOG) += ftwdt010_wdt.o ifneq (,$(filter $(SOC), mx31 mx35 mx5 mx6 vf610 ls102xa)) obj-y += imx_watchdog.o endif -obj-$(CONFIG_TNETV107X_WATCHDOG) += tnetv107x_wdt.o obj-$(CONFIG_S5P) += s5p_wdt.o obj-$(CONFIG_XILINX_TB_WATCHDOG) += xilinx_tb_wdt.o obj-$(CONFIG_BFIN_WATCHDOG) += bfin_wdt.o diff --git a/drivers/watchdog/tnetv107x_wdt.c b/drivers/watchdog/tnetv107x_wdt.c deleted file mode 100644 index 3d3f366..0000000 --- a/drivers/watchdog/tnetv107x_wdt.c +++ /dev/null @@ -1,165 +0,0 @@ -/* - * TNETV107X: Watchdog timer implementation (for reset) - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/clock.h> - -#define MAX_DIV 0xFFFE0001 - -struct wdt_regs { - u32 kick_lock; -#define KICK_LOCK_1 0x5555 -#define KICK_LOCK_2 0xaaaa - u32 kick; - - u32 change_lock; -#define CHANGE_LOCK_1 0x6666 -#define CHANGE_LOCK_2 0xbbbb - u32 change; - - u32 disable_lock; -#define DISABLE_LOCK_1 0x7777 -#define DISABLE_LOCK_2 0xcccc -#define DISABLE_LOCK_3 0xdddd - u32 disable; - - u32 prescale_lock; -#define PRESCALE_LOCK_1 0x5a5a -#define PRESCALE_LOCK_2 0xa5a5 - u32 prescale; -}; - -static struct wdt_regs* regs = (struct wdt_regs *)TNETV107X_WDT0_ARM_BASE; - -#define wdt_reg_read(reg) __raw_readl(®s->reg) -#define wdt_reg_write(reg, val) __raw_writel((val), ®s->reg) - -static int write_prescale_reg(unsigned long prescale_value) -{ - wdt_reg_write(prescale_lock, PRESCALE_LOCK_1); - if ((wdt_reg_read(prescale_lock) & 0x3) != 0x1) - return -1; - - wdt_reg_write(prescale_lock, PRESCALE_LOCK_2); - if ((wdt_reg_read(prescale_lock) & 0x3) != 0x3) - return -1; - - wdt_reg_write(prescale, prescale_value); - - return 0; -} - -static int write_change_reg(unsigned long initial_timer_value) -{ - wdt_reg_write(change_lock, CHANGE_LOCK_1); - if ((wdt_reg_read(change_lock) & 0x3) != 0x1) - return -1; - - wdt_reg_write(change_lock, CHANGE_LOCK_2); - if ((wdt_reg_read(change_lock) & 0x3) != 0x3) - return -1; - - wdt_reg_write(change, initial_timer_value); - - return 0; -} - -static int wdt_control(unsigned long disable_value) -{ - wdt_reg_write(disable_lock, DISABLE_LOCK_1); - if ((wdt_reg_read(disable_lock) & 0x3) != 0x1) - return -1; - - wdt_reg_write(disable_lock, DISABLE_LOCK_2); - if ((wdt_reg_read(disable_lock) & 0x3) != 0x2) - return -1; - - wdt_reg_write(disable_lock, DISABLE_LOCK_3); - if ((wdt_reg_read(disable_lock) & 0x3) != 0x3) - return -1; - - wdt_reg_write(disable, disable_value); - return 0; -} - -static int wdt_set_period(unsigned long msec) -{ - unsigned long change_value, count_value; - unsigned long prescale_value = 1; - unsigned long refclk_khz, maxdiv; - int ret; - - refclk_khz = clk_get_rate(TNETV107X_LPSC_WDT_ARM); - maxdiv = (MAX_DIV / refclk_khz); - - if ((!msec) || (msec > maxdiv)) - return -1; - - count_value = refclk_khz * msec; - if (count_value > 0xffff) { - change_value = count_value / 0xffff + 1; - prescale_value = count_value / change_value; - } else { - change_value = count_value; - } - - ret = write_prescale_reg(prescale_value - 1); - if (ret) - return ret; - - ret = write_change_reg(change_value); - if (ret) - return ret; - - return 0; -} - -unsigned long last_wdt = -1; - -int wdt_start(unsigned long msecs) -{ - int ret; - ret = wdt_control(0); - if (ret) - return ret; - ret = wdt_set_period(msecs); - if (ret) - return ret; - ret = wdt_control(1); - if (ret) - return ret; - ret = wdt_kick(); - last_wdt = msecs; - return ret; -} - -int wdt_stop(void) -{ - last_wdt = -1; - return wdt_control(0); -} - -int wdt_kick(void) -{ - wdt_reg_write(kick_lock, KICK_LOCK_1); - if ((wdt_reg_read(kick_lock) & 0x3) != 0x1) - return -1; - - wdt_reg_write(kick_lock, KICK_LOCK_2); - if ((wdt_reg_read(kick_lock) & 0x3) != 0x3) - return -1; - - wdt_reg_write(kick, 1); - return 0; -} - -void reset_cpu(ulong addr) -{ - clk_enable(TNETV107X_LPSC_WDT_ARM); - wdt_start(1); - wdt_kick(); -} |