From 6a69e11a793130fb61cce5564dc90d83ca9861e4 Mon Sep 17 00:00:00 2001 From: Minkyu Kang Date: Thu, 5 Aug 2010 09:55:14 +0900 Subject: S5P: mmc: use the standard debug macro Use the standard debug macro instead of the costom macro Signed-off-by: Minkyu Kang Cc: Wolfgang Denk --- drivers/mmc/s5p_mmc.c | 30 ++++++++++++------------------ 1 file changed, 12 insertions(+), 18 deletions(-) (limited to 'drivers') diff --git a/drivers/mmc/s5p_mmc.c b/drivers/mmc/s5p_mmc.c index 669b1d0d2f..872f0bb2ac 100644 --- a/drivers/mmc/s5p_mmc.c +++ b/drivers/mmc/s5p_mmc.c @@ -23,12 +23,6 @@ #include #include -#ifdef DEBUG_S5P_HSMMC -#define dbg(x...) printf(x) -#else -#define dbg(x...) do { } while (0) -#endif - /* support 4 mmc hosts */ struct mmc mmc_dev[4]; struct mmc_host mmc_host[4]; @@ -47,7 +41,7 @@ static void mmc_prepare_data(struct mmc_host *host, struct mmc_data *data) { unsigned char ctrl; - dbg("data->dest: %08x\n", (u32)data->dest); + debug("data->dest: %08x\n", (u32)data->dest); writel((u32)data->dest, &host->reg->sysad); /* * DMASEL[4:3] @@ -128,7 +122,7 @@ static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, if (data) mmc_prepare_data(host, data); - dbg("cmd->arg: %08x\n", cmd->cmdarg); + debug("cmd->arg: %08x\n", cmd->cmdarg); writel(cmd->cmdarg, &host->reg->argument); if (data) @@ -165,7 +159,7 @@ static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, if (data) flags |= (1 << 5); - dbg("cmd: %d\n", cmd->cmdidx); + debug("cmd: %d\n", cmd->cmdidx); writew((cmd->cmdidx << 8) | flags, &host->reg->cmdreg); @@ -186,11 +180,11 @@ static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, if (mask & (1 << 16)) { /* Timeout Error */ - dbg("timeout: %08x cmd %d\n", mask, cmd->cmdidx); + debug("timeout: %08x cmd %d\n", mask, cmd->cmdidx); return TIMEOUT; } else if (mask & (1 << 15)) { /* Error Interrupt */ - dbg("error: %08x cmd %d\n", mask, cmd->cmdidx); + debug("error: %08x cmd %d\n", mask, cmd->cmdidx); return -1; } @@ -206,7 +200,7 @@ static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, cmd->response[i] |= readb(offset - 1); } - dbg("cmd->resp[%d]: %08x\n", + debug("cmd->resp[%d]: %08x\n", i, cmd->response[i]); } } else if (cmd->resp_type & MMC_RSP_BUSY) { @@ -223,10 +217,10 @@ static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, } cmd->response[0] = readl(&host->reg->rspreg0); - dbg("cmd->resp[0]: %08x\n", cmd->response[0]); + debug("cmd->resp[0]: %08x\n", cmd->response[0]); } else { cmd->response[0] = readl(&host->reg->rspreg0); - dbg("cmd->resp[0]: %08x\n", cmd->response[0]); + debug("cmd->resp[0]: %08x\n", cmd->response[0]); } } @@ -242,11 +236,11 @@ static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, return -1; } else if (mask & (1 << 3)) { /* DMA Interrupt */ - dbg("DMA end\n"); + debug("DMA end\n"); break; } else if (mask & (1 << 1)) { /* Transfer Complete */ - dbg("r/w is done\n"); + debug("r/w is done\n"); break; } } @@ -288,7 +282,7 @@ static void mmc_change_clock(struct mmc_host *host, uint clock) div = 2; else div = 1; - dbg("div: %d\n", div); + debug("div: %d\n", div); div >>= 1; /* @@ -325,7 +319,7 @@ static void mmc_set_ios(struct mmc *mmc) unsigned char ctrl; unsigned long val; - dbg("set_ios: bus_width: %x, clock: %d\n", mmc->bus_width, mmc->clock); + debug("bus_width: %x, clock: %d\n", mmc->bus_width, mmc->clock); /* * SELCLKPADDS[17:16] -- cgit From b2621bcb8c3916e9c59186fec2ab8573a8b3bd7d Mon Sep 17 00:00:00 2001 From: Matthias Weisser Date: Mon, 9 Aug 2010 13:31:50 +0200 Subject: video: add support for display controller in MB86R0x SoCs This patch adds support for the display controller in the MB86R0x SoCs. Signed-off-by: Matthias Weisser Acked-by: Anatolij Gustschin --- drivers/video/Makefile | 1 + drivers/video/mb86r0xgdc.c | 186 +++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 187 insertions(+) create mode 100644 drivers/video/mb86r0xgdc.c (limited to 'drivers') diff --git a/drivers/video/Makefile b/drivers/video/Makefile index 7d84fc71a6..4be82e7396 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -32,6 +32,7 @@ COBJS-$(CONFIG_S6E63D6) += s6e63d6.o COBJS-$(CONFIG_VIDEO_AMBA) += amba.o COBJS-$(CONFIG_VIDEO_CT69000) += ct69000.o videomodes.o COBJS-$(CONFIG_VIDEO_MB862xx) += mb862xx.o videomodes.o +COBJS-$(CONFIG_VIDEO_MB86R0xGDC) += mb86r0xgdc.o videomodes.o COBJS-$(CONFIG_VIDEO_MX3) += mx3fb.o COBJS-$(CONFIG_VIDEO_SED13806) += sed13806.o COBJS-$(CONFIG_SED156X) += sed156x.o diff --git a/drivers/video/mb86r0xgdc.c b/drivers/video/mb86r0xgdc.c new file mode 100644 index 0000000000..3bdc1db61d --- /dev/null +++ b/drivers/video/mb86r0xgdc.c @@ -0,0 +1,186 @@ +/* + * (C) Copyright 2010 + * Matthias Weisser + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * mb86r0xgdc.c - Graphic interface for Fujitsu MB86R0x integrated graphic + * controller. + */ + +#include + +#include +#include +#include +#include +#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; + u32 i; + + 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 */ + for (i = 0; i < var_mode.xres * var_mode.yres / 2; i++) + *videomem++ = 0xFFFFFFFF; + + 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; +} -- cgit From 8bbf4307c7a44ecf6a1cff905913a630ac949f18 Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas Date: Wed, 11 Aug 2010 15:51:12 -0700 Subject: mmc: omap3: make local symbols static Make driver local variables and functions static and remove them from the arch header. Signed-off-by: Grazvydas Ignotas Tested-by: Steve Sakoman Signed-off-by: Sandeep Paulraj --- drivers/mmc/omap3_mmc.c | 33 +++++++++++++++++---------------- drivers/mmc/omap3_mmc.h | 9 --------- 2 files changed, 17 insertions(+), 25 deletions(-) (limited to 'drivers') diff --git a/drivers/mmc/omap3_mmc.c b/drivers/mmc/omap3_mmc.c index 9506cca218..238f537a25 100644 --- a/drivers/mmc/omap3_mmc.c +++ b/drivers/mmc/omap3_mmc.c @@ -33,7 +33,7 @@ #include "omap3_mmc.h" -const unsigned short mmc_transspeed_val[15][4] = { +static const unsigned short mmc_transspeed_val[15][4] = { {CLKD(10, 1), CLKD(10, 10), CLKD(10, 100), CLKD(10, 1000)}, {CLKD(12, 1), CLKD(12, 10), CLKD(12, 100), CLKD(12, 1000)}, {CLKD(13, 1), CLKD(13, 10), CLKD(13, 100), CLKD(13, 1000)}, @@ -51,7 +51,7 @@ const unsigned short mmc_transspeed_val[15][4] = { {CLKD(80, 1), CLKD(80, 10), CLKD(80, 100), CLKD(80, 1000)} }; -mmc_card_data cur_card_data; +static mmc_card_data cur_card_data; static block_dev_desc_t mmc_blk_dev; static hsmmc_t *mmc_base = (hsmmc_t *)OMAP_HSMMC1_BASE; @@ -80,7 +80,7 @@ block_dev_desc_t *mmc_get_dev(int dev) return (block_dev_desc_t *) &mmc_blk_dev; } -unsigned char mmc_board_init(void) +static unsigned char mmc_board_init(void) { #if defined(CONFIG_TWL4030_POWER) twl4030_power_mmc_init(); @@ -114,7 +114,7 @@ unsigned char mmc_board_init(void) return 1; } -void mmc_init_stream(void) +static void mmc_init_stream(void) { writel(readl(&mmc_base->con) | INIT_INITSTREAM, &mmc_base->con); @@ -129,7 +129,7 @@ void mmc_init_stream(void) writel(readl(&mmc_base->con) & ~INIT_INITSTREAM, &mmc_base->con); } -unsigned char mmc_clock_config(unsigned int iclk, unsigned short clk_div) +static unsigned char mmc_clock_config(unsigned int iclk, unsigned short clk_div) { unsigned int val; @@ -158,7 +158,7 @@ unsigned char mmc_clock_config(unsigned int iclk, unsigned short clk_div) return 1; } -unsigned char mmc_init_setup(void) +static unsigned char mmc_init_setup(void) { unsigned int reg_val; @@ -192,7 +192,7 @@ unsigned char mmc_init_setup(void) return 1; } -unsigned char mmc_send_cmd(unsigned int cmd, unsigned int arg, +static unsigned char mmc_send_cmd(unsigned int cmd, unsigned int arg, unsigned int *response) { unsigned int mmc_stat; @@ -228,7 +228,7 @@ unsigned char mmc_send_cmd(unsigned int cmd, unsigned int arg, return 1; } -unsigned char mmc_read_data(unsigned int *output_buf) +static unsigned char mmc_read_data(unsigned int *output_buf) { unsigned int mmc_stat; unsigned int read_count = 0; @@ -269,7 +269,7 @@ unsigned char mmc_read_data(unsigned int *output_buf) return 1; } -unsigned char mmc_detect_card(mmc_card_data *mmc_card_cur) +static unsigned char mmc_detect_card(mmc_card_data *mmc_card_cur) { unsigned char err; unsigned int argument = 0; @@ -380,7 +380,7 @@ unsigned char mmc_detect_card(mmc_card_data *mmc_card_cur) return 1; } -unsigned char mmc_read_cardsize(mmc_card_data *mmc_dev_data, +static unsigned char mmc_read_cardsize(mmc_card_data *mmc_dev_data, mmc_csd_reg_t *cur_csd) { mmc_extended_csd_reg_t ext_csd; @@ -434,9 +434,9 @@ unsigned char mmc_read_cardsize(mmc_card_data *mmc_dev_data, return 1; } -unsigned char omap_mmc_read_sect(unsigned int start_sec, unsigned int num_bytes, - mmc_card_data *mmc_c, - unsigned long *output_buf) +static unsigned char omap_mmc_read_sect(unsigned int start_sec, + unsigned int num_bytes, mmc_card_data *mmc_c, + unsigned long *output_buf) { unsigned char err; unsigned int argument; @@ -472,7 +472,7 @@ unsigned char omap_mmc_read_sect(unsigned int start_sec, unsigned int num_bytes, return 1; } -unsigned char configure_mmc(mmc_card_data *mmc_card_cur) +static unsigned char configure_mmc(mmc_card_data *mmc_card_cur) { unsigned char ret_val; unsigned int argument; @@ -541,8 +541,9 @@ unsigned char configure_mmc(mmc_card_data *mmc_card_cur) return 1; } -unsigned long mmc_bread(int dev_num, unsigned long blknr, lbaint_t blkcnt, - void *dst) + +static unsigned long mmc_bread(int dev_num, unsigned long blknr, + lbaint_t blkcnt, void *dst) { omap_mmc_read_sect(blknr, (blkcnt * MMCSD_SECTOR_SIZE), &cur_card_data, (unsigned long *) dst); diff --git a/drivers/mmc/omap3_mmc.h b/drivers/mmc/omap3_mmc.h index cbb3dc3a3a..e4d263c877 100644 --- a/drivers/mmc/omap3_mmc.h +++ b/drivers/mmc/omap3_mmc.h @@ -230,13 +230,4 @@ typedef union { mmc_csd_reg_t Card_CSD; } mmc_resp_t; -extern mmc_card_data mmc_dev; - -unsigned char mmc_lowlevel_init(void); -unsigned char mmc_send_command(unsigned int cmd, unsigned int arg, - unsigned int *response); -unsigned char mmc_setup_clock(unsigned int iclk, unsigned short clkd); -unsigned char mmc_set_opendrain(unsigned char state); -unsigned char mmc_read_data(unsigned int *output_buf); - #endif /* MMC_H */ -- cgit From dc41b8bf3df2b2c3bd833f871d88ff5ef40a19f3 Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas Date: Wed, 11 Aug 2010 15:56:03 -0700 Subject: mmc: omap3: fix block read function The OMAP3 block read function is not following API and always returning 1 instead of read block count, fix it. Also to simplify code, merge it with with a helper function, which was only called from the block read function. After this patch ext2 filesystem can be used properly. Signed-off-by: Grazvydas Ignotas Tested-by: Steve Sakoman Signed-off-by: Sandeep Paulraj --- drivers/mmc/omap3_mmc.c | 47 +++++++++++++++++++++-------------------------- 1 file changed, 21 insertions(+), 26 deletions(-) (limited to 'drivers') diff --git a/drivers/mmc/omap3_mmc.c b/drivers/mmc/omap3_mmc.c index 238f537a25..15d41e55bd 100644 --- a/drivers/mmc/omap3_mmc.c +++ b/drivers/mmc/omap3_mmc.c @@ -434,42 +434,45 @@ static unsigned char mmc_read_cardsize(mmc_card_data *mmc_dev_data, return 1; } -static unsigned char omap_mmc_read_sect(unsigned int start_sec, - unsigned int num_bytes, mmc_card_data *mmc_c, - unsigned long *output_buf) +static unsigned long mmc_bread(int dev_num, unsigned long blknr, + lbaint_t blkcnt, void *dst) { unsigned char err; unsigned int argument; unsigned int resp[4]; - unsigned int num_sec_val = - (num_bytes + (MMCSD_SECTOR_SIZE - 1)) / MMCSD_SECTOR_SIZE; + unsigned int *output_buf = dst; unsigned int sec_inc_val; + lbaint_t i; - if (num_sec_val == 0) - return 1; + if (blkcnt == 0) + return 0; - if (mmc_c->mode == SECTOR_MODE) { - argument = start_sec; + if (cur_card_data.mode == SECTOR_MODE) { + argument = blknr; sec_inc_val = 1; } else { - argument = start_sec * MMCSD_SECTOR_SIZE; + argument = blknr * MMCSD_SECTOR_SIZE; sec_inc_val = MMCSD_SECTOR_SIZE; } - while (num_sec_val) { + for (i = 0; i < blkcnt; i++) { err = mmc_send_cmd(MMC_CMD17, argument, resp); - if (err != 1) - return err; + if (err != 1) { + printf("mmc: CMD17 failed, status = %08x\n", err); + break; + } - err = mmc_read_data((unsigned int *) output_buf); - if (err != 1) - return err; + err = mmc_read_data(output_buf); + if (err != 1) { + printf("mmc: read failed, status = %08x\n", err); + break; + } output_buf += (MMCSD_SECTOR_SIZE / 4); argument += sec_inc_val; - num_sec_val--; } - return 1; + + return i; } static unsigned char configure_mmc(mmc_card_data *mmc_card_cur) @@ -542,14 +545,6 @@ static unsigned char configure_mmc(mmc_card_data *mmc_card_cur) return 1; } -static unsigned long mmc_bread(int dev_num, unsigned long blknr, - lbaint_t blkcnt, void *dst) -{ - omap_mmc_read_sect(blknr, (blkcnt * MMCSD_SECTOR_SIZE), &cur_card_data, - (unsigned long *) dst); - return 1; -} - int mmc_legacy_init(int dev) { if (mmc_set_dev(dev) != 0) -- cgit From d93d0f0cfef46293db97cbdc5e72c9e5bceadd02 Mon Sep 17 00:00:00 2001 From: Minkyu Kang Date: Fri, 13 Aug 2010 16:07:35 +0900 Subject: S5P: Use accessor functions instead of SoC specific defines to access the base address This patch is intended to prepare the other S5P SoC. (s5pc210) If use SoC specific defines then can't share with other SoC. So, make the accessor functions for access the base address by common way. Signed-off-by: Minkyu Kang Signed-off-by: Kyungmin Park --- drivers/mmc/s5p_mmc.c | 6 +----- drivers/serial/serial_s5p.c | 6 +----- 2 files changed, 2 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/mmc/s5p_mmc.c b/drivers/mmc/s5p_mmc.c index 872f0bb2ac..1fd425cbb6 100644 --- a/drivers/mmc/s5p_mmc.c +++ b/drivers/mmc/s5p_mmc.c @@ -30,11 +30,7 @@ struct mmc_host mmc_host[4]; static inline struct s5p_mmc *s5p_get_base_mmc(int dev_index) { unsigned long offset = dev_index * sizeof(struct s5p_mmc); - - if (cpu_is_s5pc100()) - return (struct s5p_mmc *)(S5PC100_MMC_BASE + offset); - else - return (struct s5p_mmc *)(S5PC110_MMC_BASE + offset); + return (struct s5p_mmc *)(samsung_get_base_mmc() + offset); } static void mmc_prepare_data(struct mmc_host *host, struct mmc_data *data) diff --git a/drivers/serial/serial_s5p.c b/drivers/serial/serial_s5p.c index e0d4e8004d..6a61b4fa5d 100644 --- a/drivers/serial/serial_s5p.c +++ b/drivers/serial/serial_s5p.c @@ -30,11 +30,7 @@ static inline struct s5p_uart *s5p_get_base_uart(int dev_index) { u32 offset = dev_index * sizeof(struct s5p_uart); - - if (cpu_is_s5pc100()) - return (struct s5p_uart *)(S5PC100_UART_BASE + offset); - else - return (struct s5p_uart *)(S5PC110_UART_BASE + offset); + return (struct s5p_uart *)(samsung_get_base_uart() + offset); } /* -- cgit From 889a275d428be2790270f7280385207c1666eb4b Mon Sep 17 00:00:00 2001 From: Minkyu Kang Date: Mon, 23 Aug 2010 19:52:03 +0900 Subject: ARMV7: S5P: rename from CONFIG_S5PC1XX to CONFIG_S5P Use the same configuration around S5P SoCs. (s5pc100, s5pc110, s5pc210 and so on) Signed-off-by: Minkyu Kang --- drivers/gpio/Makefile | 2 +- drivers/mtd/onenand/samsung.c | 6 +++--- drivers/serial/Makefile | 2 +- 3 files changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 528ca2e99a..07d395d898 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -29,7 +29,7 @@ COBJS-$(CONFIG_AT91_GPIO) += at91_gpio.o COBJS-$(CONFIG_KIRKWOOD_GPIO) += kw_gpio.o COBJS-$(CONFIG_MX31_GPIO) += mx31_gpio.o COBJS-$(CONFIG_PCA953X) += pca953x.o -COBJS-$(CONFIG_S5PC1XX) += s5p_gpio.o +COBJS-$(CONFIG_S5P) += s5p_gpio.o COBJS := $(COBJS-y) SRCS := $(COBJS:.o=.c) diff --git a/drivers/mtd/onenand/samsung.c b/drivers/mtd/onenand/samsung.c index f2be687639..20b49124d5 100644 --- a/drivers/mtd/onenand/samsung.c +++ b/drivers/mtd/onenand/samsung.c @@ -67,7 +67,7 @@ do { \ #define MAP_01 (0x1 << 24) #define MAP_10 (0x2 << 24) #define MAP_11 (0x3 << 24) -#elif defined(CONFIG_S5PC1XX) +#elif defined(CONFIG_S5P) #define MAP_00 (0x0 << 26) #define MAP_01 (0x1 << 26) #define MAP_10 (0x2 << 26) @@ -121,7 +121,7 @@ static unsigned int s3c_mem_addr(int fba, int fpa, int fsa) { return (fba << 12) | (fpa << 6) | (fsa << 4); } -#elif defined(CONFIG_S5PC1XX) +#elif defined(CONFIG_S5P) static unsigned int s3c_mem_addr(int fba, int fpa, int fsa) { return (fba << 13) | (fpa << 7) | (fsa << 5); @@ -614,7 +614,7 @@ void s3c_onenand_init(struct mtd_info *mtd) #if defined(CONFIG_S3C64XX) onenand->base = (void *)0x70100000; onenand->ahb_addr = (void *)0x20000000; -#elif defined(CONFIG_S5PC1XX) +#elif defined(CONFIG_S5P) onenand->base = (void *)0xE7100000; onenand->ahb_addr = (void *)0xB0000000; #endif diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile index c731bfb594..6d45a8ef55 100644 --- a/drivers/serial/Makefile +++ b/drivers/serial/Makefile @@ -36,7 +36,7 @@ COBJS-$(CONFIG_OPENCORES_YANU) += opencores_yanu.o COBJS-$(CONFIG_SYS_NS16550) += ns16550.o COBJS-$(CONFIG_DRIVER_S3C4510_UART) += s3c4510b_uart.o COBJS-$(CONFIG_S3C64XX) += s3c64xx.o -COBJS-$(CONFIG_S5PC1XX) += serial_s5p.o +COBJS-$(CONFIG_S5P) += serial_s5p.o COBJS-$(CONFIG_SYS_NS16550_SERIAL) += serial.o COBJS-$(CONFIG_CLPS7111_SERIAL) += serial_clps7111.o COBJS-$(CONFIG_IMX_SERIAL) += serial_imx.o -- cgit From f70409aff3a10e22ff9c66f87e9cbc3de7cbd7f7 Mon Sep 17 00:00:00 2001 From: Minkyu Kang Date: Tue, 24 Aug 2010 15:51:55 +0900 Subject: ARMV7: S5P: separate the peripheral clocks Because of peripheral devices can select clock sources, separate the peripheral clocks. (pwm, uart and so on) It just return the pclk at s5pc1xx SoC, but s5pc210 SoC must be calculated by own clock register setting. Signed-off-by: Minkyu Kang Signed-off-by: Kyungmin Park --- drivers/serial/serial_s5p.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/serial/serial_s5p.c b/drivers/serial/serial_s5p.c index 6a61b4fa5d..77096643f1 100644 --- a/drivers/serial/serial_s5p.c +++ b/drivers/serial/serial_s5p.c @@ -63,11 +63,11 @@ void serial_setbrg_dev(const int dev_index) { DECLARE_GLOBAL_DATA_PTR; struct s5p_uart *const uart = s5p_get_base_uart(dev_index); - u32 pclk = get_pclk(); + u32 uclk = get_uart_clk(dev_index); u32 baudrate = gd->baudrate; u32 val; - val = pclk / baudrate; + val = uclk / baudrate; writel(val / 16 - 1, &uart->ubrdiv); writew(udivslot[val % 16], &uart->udivslot); -- cgit From 1592ef8596fffd937a30462eb15f1d64e237ae49 Mon Sep 17 00:00:00 2001 From: Reinhard Meyer Date: Fri, 13 Aug 2010 10:31:06 +0200 Subject: AT91: MCI: add SD/MMC driver using mmc framework Signed-off-by: Reinhard Meyer --- drivers/mmc/Makefile | 5 +- drivers/mmc/atmel_mci.h | 48 +++++- drivers/mmc/gen_atmel_mci.c | 353 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 402 insertions(+), 4 deletions(-) create mode 100644 drivers/mmc/gen_atmel_mci.c (limited to 'drivers') diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile index 8dfd8a32ba..6603d74294 100644 --- a/drivers/mmc/Makefile +++ b/drivers/mmc/Makefile @@ -25,12 +25,13 @@ include $(TOPDIR)/config.mk LIB := $(obj)libmmc.a -COBJS-$(CONFIG_GENERIC_MMC) += mmc.o COBJS-$(CONFIG_ATMEL_MCI) += atmel_mci.o COBJS-$(CONFIG_BFIN_SDH) += bfin_sdh.o -COBJS-$(CONFIG_OMAP3_MMC) += omap3_mmc.o COBJS-$(CONFIG_FSL_ESDHC) += fsl_esdhc.o +COBJS-$(CONFIG_GENERIC_MMC) += mmc.o +COBJS-$(CONFIG_GENERIC_ATMEL_MCI) += gen_atmel_mci.o COBJS-$(CONFIG_MXC_MMC) += mxcmmc.o +COBJS-$(CONFIG_OMAP3_MMC) += omap3_mmc.o COBJS-$(CONFIG_PXA_MMC) += pxa_mmc.o COBJS-$(CONFIG_S5P_MMC) += s5p_mmc.o diff --git a/drivers/mmc/atmel_mci.h b/drivers/mmc/atmel_mci.h index 5b4f5c99b6..823a77d91b 100644 --- a/drivers/mmc/atmel_mci.h +++ b/drivers/mmc/atmel_mci.h @@ -22,7 +22,45 @@ #ifndef __CPU_AT32AP_ATMEL_MCI_H__ #define __CPU_AT32AP_ATMEL_MCI_H__ -/* Atmel MultiMedia Card Interface (MCI) registers */ +#ifndef __ASSEMBLY__ + +/* + * Structure for struct SoC access. + * Names starting with '_' are fillers. + */ +typedef struct atmel_mci { + /* reg Offset */ + u32 cr; /* 0x00 */ + u32 mr; /* 0x04 */ + u32 dtor; /* 0x08 */ + u32 sdcr; /* 0x0c */ + u32 argr; /* 0x10 */ + u32 cmdr; /* 0x14 */ + u32 _18; /* 0x18 */ + u32 _1c; /* 0x1c */ + u32 rspr; /* 0x20 */ + u32 rspr1; /* 0x24 */ + u32 rspr2; /* 0x28 */ + u32 rspr3; /* 0x2c */ + u32 rdr; /* 0x30 */ + u32 tdr; /* 0x34 */ + u32 _38; /* 0x38 */ + u32 _3c; /* 0x3c */ + u32 sr; /* 0x40 */ + u32 ier; /* 0x44 */ + u32 idr; /* 0x48 */ + u32 imr; /* 0x4c */ +} atmel_mci_t; + +#endif /* __ASSEMBLY__ */ + +/* + * NOTICE: Use of registers offsets is depreciated. + * These defines will be removed once the old driver + * is taken out of commision. + * + * Atmel MultiMedia Card Interface (MCI) registers + */ #define MMCI_CR 0x0000 #define MMCI_MR 0x0004 #define MMCI_DTOR 0x0008 @@ -192,7 +230,13 @@ << MMCI_##name##_OFFSET)) \ | MMCI_BF(name,value)) -/* Register access macros */ +/* + * NOTICE: Use of registers offsets is depreciated. + * These defines will be removed once the old driver + * is taken out of commision. + * + * Register access macros + */ #define mmci_readl(reg) \ readl((void *)MMCI_BASE + MMCI_##reg) #define mmci_writel(reg,value) \ diff --git a/drivers/mmc/gen_atmel_mci.c b/drivers/mmc/gen_atmel_mci.c new file mode 100644 index 0000000000..fa4df9943a --- /dev/null +++ b/drivers/mmc/gen_atmel_mci.c @@ -0,0 +1,353 @@ +/* + * Copyright (C) 2010 + * Rob Emanuele + * Reinhard Meyer, EMK Elektronik + * + * Original Driver: + * Copyright (C) 2004-2006 Atmel Corporation + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "atmel_mci.h" + +#ifndef CONFIG_SYS_MMC_CLK_OD +# define CONFIG_SYS_MMC_CLK_OD 150000 +#endif + +#define MMC_DEFAULT_BLKLEN 512 + +#if defined(CONFIG_ATMEL_MCI_PORTB) +# define MCI_BUS 1 +#else +# define MCI_BUS 0 +#endif + +static int initialized = 0; + +/* + * Print command and status: + * + * - always when DEBUG is defined + * - on command errors + */ +static void dump_cmd(u32 cmdr, u32 arg, u32 status, const char* msg) +{ + printf("gen_atmel_mci: CMDR %08x (%2u) ARGR %08x (SR: %08x) %s\n", + cmdr, cmdr&0x3F, arg, status, msg); +} + +/* Setup for MCI Clock and Block Size */ +static void mci_set_mode(struct mmc *mmc, u32 hz, u32 blklen) +{ + atmel_mci_t *mci = (atmel_mci_t *)mmc->priv; + u32 bus_hz = get_mci_clk_rate(); + u32 clkdiv = 255; + + debug("mci: bus_hz is %u, setting clock %u Hz, block size %u\n", + bus_hz, hz, blklen); + if (hz > 0) { + /* find lowest clkdiv yielding a rate <= than requested */ + for (clkdiv=0; clkdiv<255; clkdiv++) { + if ((bus_hz / (clkdiv+1) / 2) <= hz) + break; + } + } + printf("mci: setting clock %u Hz, block size %u\n", + (bus_hz / (clkdiv+1)) / 2, blklen); + + blklen &= 0xfffc; + /* On some platforms RDPROOF and WRPROOF are ignored */ + writel((MMCI_BF(CLKDIV, clkdiv) + | MMCI_BF(BLKLEN, blklen) + | MMCI_BIT(RDPROOF) + | MMCI_BIT(WRPROOF)), &mci->mr); + initialized = 1; +} + +/* Return the CMDR with flags for a given command and data packet */ +static u32 mci_encode_cmd( + struct mmc_cmd *cmd, struct mmc_data *data, u32* error_flags) +{ + u32 cmdr = 0; + + /* Default Flags for Errors */ + *error_flags |= (MMCI_BIT(DTOE) | MMCI_BIT(RDIRE) | MMCI_BIT(RENDE) | + MMCI_BIT(RINDE) | MMCI_BIT(RTOE)); + + /* Default Flags for the Command */ + cmdr |= MMCI_BIT(MAXLAT); + + if (data) { + cmdr |= MMCI_BF(TRCMD, 1); + if (data->blocks > 1) + cmdr |= MMCI_BF(TRTYP, 1); + if (data->flags & MMC_DATA_READ) + cmdr |= MMCI_BIT(TRDIR); + } + + if (cmd->resp_type & MMC_RSP_CRC) + *error_flags |= MMCI_BIT(RCRCE); + if (cmd->resp_type & MMC_RSP_136) + cmdr |= MMCI_BF(RSPTYP, 2); + else if (cmd->resp_type & MMC_RSP_BUSY) + cmdr |= MMCI_BF(RSPTYP, 3); + else if (cmd->resp_type & MMC_RSP_PRESENT) + cmdr |= MMCI_BF(RSPTYP, 1); + + return cmdr | MMCI_BF(CMDNB, cmd->cmdidx); +} + +/* Entered into function pointer in mci_send_cmd */ +static u32 mci_data_read(atmel_mci_t *mci, u32* data, u32 error_flags) +{ + u32 status; + + do { + status = readl(&mci->sr); + if (status & (error_flags | MMCI_BIT(OVRE))) + goto io_fail; + } while (!(status & MMCI_BIT(RXRDY))); + + if (status & MMCI_BIT(RXRDY)) { + *data = readl(&mci->rdr); + status = 0; + } +io_fail: + return status; +} + +/* Entered into function pointer in mci_send_cmd */ +static u32 mci_data_write(atmel_mci_t *mci, u32* data, u32 error_flags) +{ + u32 status; + + do { + status = readl(&mci->sr); + if (status & (error_flags | MMCI_BIT(UNRE))) + goto io_fail; + } while (!(status & MMCI_BIT(TXRDY))); + + if (status & MMCI_BIT(TXRDY)) { + writel(*data, &mci->tdr); + status = 0; + } +io_fail: + return status; +} + +/* + * Entered into mmc structure during driver init + * + * Sends a command out on the bus and deals with the block data. + * Takes the mmc pointer, a command pointer, and an optional data pointer. + */ +static int +mci_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data) +{ + atmel_mci_t *mci = (atmel_mci_t *)mmc->priv; + u32 cmdr; + u32 error_flags = 0; + u32 status; + + if (!initialized) { + puts ("MCI not initialized!\n"); + return COMM_ERR; + } + + /* Figure out the transfer arguments */ + cmdr = mci_encode_cmd(cmd, data, &error_flags); + + /* Send the command */ + writel(cmd->cmdarg, &mci->argr); + writel(cmdr, &mci->cmdr); + +#ifdef DEBUG + dump_cmd(cmdr, cmd->cmdarg, 0, "DEBUG"); +#endif + + /* Wait for the command to complete */ + while (!((status = readl(&mci->sr)) & MMCI_BIT(CMDRDY))); + + if (status & error_flags) { + dump_cmd(cmdr, cmd->cmdarg, status, "Command Failed"); + return COMM_ERR; + } + + /* Copy the response to the response buffer */ + if (cmd->resp_type & MMC_RSP_136) { + cmd->response[0] = readl(&mci->rspr); + cmd->response[1] = readl(&mci->rspr1); + cmd->response[2] = readl(&mci->rspr2); + cmd->response[3] = readl(&mci->rspr3); + } else + cmd->response[0] = readl(&mci->rspr); + + /* transfer all of the blocks */ + if (data) { + u32 word_count, block_count; + u32* ioptr; + u32 sys_blocksize, dummy, i; + u32 (*mci_data_op) + (atmel_mci_t *mci, u32* data, u32 error_flags); + + if (data->flags & MMC_DATA_READ) { + mci_data_op = mci_data_read; + sys_blocksize = mmc->read_bl_len; + ioptr = (u32*)data->dest; + } else { + mci_data_op = mci_data_write; + sys_blocksize = mmc->write_bl_len; + ioptr = (u32*)data->src; + } + + status = 0; + for (block_count = 0; + block_count < data->blocks && !status; + block_count++) { + word_count = 0; + do { + status = mci_data_op(mci, ioptr, error_flags); + word_count++; + ioptr++; + } while (!status && word_count < (data->blocksize/4)); +#ifdef DEBUG + if (data->flags & MMC_DATA_READ) + { + printf("Read Data:\n"); + print_buffer(0, data->dest, 1, + word_count*4, 0); + } +#endif +#ifdef DEBUG + if (!status && word_count < (sys_blocksize / 4)) + printf("filling rest of block...\n"); +#endif + /* fill the rest of a full block */ + while (!status && word_count < (sys_blocksize / 4)) { + status = mci_data_op(mci, &dummy, + error_flags); + word_count++; + } + if (status) { + dump_cmd(cmdr, cmd->cmdarg, status, + "Data Transfer Failed"); + return COMM_ERR; + } + } + + /* Wait for Transfer End */ + i = 0; + do { + status = readl(&mci->sr); + + if (status & error_flags) { + dump_cmd(cmdr, cmd->cmdarg, status, + "DTIP Wait Failed"); + return COMM_ERR; + } + i++; + } while ((status & MMCI_BIT(DTIP)) && i < 10000); + if (status & MMCI_BIT(DTIP)) { + dump_cmd(cmdr, cmd->cmdarg, status, + "XFER DTIP never unset, ignoring"); + } + } + + return 0; +} + +/* Entered into mmc structure during driver init */ +static void mci_set_ios(struct mmc *mmc) +{ + atmel_mci_t *mci = (atmel_mci_t *)mmc->priv; + int busw = (mmc->bus_width == 4) ? 1 : 0; + + /* Set the clock speed */ + mci_set_mode(mmc, mmc->clock, MMC_DEFAULT_BLKLEN); + + /* + * set the bus width and select slot for this interface + * there is no capability for multiple slots on the same interface yet + * Bitfield SCDBUS needs to be expanded to 2 bits for 8-bit buses + */ + writel(MMCI_BF(SCDBUS, busw) | MMCI_BF(SCDSEL, MCI_BUS), &mci->sdcr); +} + +/* Entered into mmc structure during driver init */ +static int mci_init(struct mmc *mmc) +{ + atmel_mci_t *mci = (atmel_mci_t *)mmc->priv; + + /* Initialize controller */ + writel(MMCI_BIT(SWRST), &mci->cr); /* soft reset */ + writel(MMCI_BIT(PWSDIS), &mci->cr); /* disable power save */ + writel(MMCI_BIT(MCIEN), &mci->cr); /* enable mci */ + + /* Initial Time-outs */ + writel(0x5f, &mci->dtor); + /* Disable Interrupts */ + writel(~0UL, &mci->idr); + + /* Set default clocks and blocklen */ + mci_set_mode(mmc, CONFIG_SYS_MMC_CLK_OD, MMC_DEFAULT_BLKLEN); + + return 0; +} + +/* + * This is the only exported function + * + * Call it with the MCI register base address + */ +int atmel_mci_init(void *regs) +{ + struct mmc *mmc = malloc(sizeof(struct mmc)); + + if (!mmc) + return -1; + strcpy(mmc->name, "mci"); + mmc->priv = regs; + mmc->send_cmd = mci_send_cmd; + mmc->set_ios = mci_set_ios; + mmc->init = mci_init; + + /* need to be able to pass these in on a board by board basis */ + mmc->voltages = MMC_VDD_32_33 | MMC_VDD_33_34; + mmc->host_caps = MMC_MODE_4BIT; + /* + * min and max frequencies determined by + * max and min of clock divider + */ + mmc->f_min = get_mci_clk_rate() / (2*256); + mmc->f_max = get_mci_clk_rate() / (2*1); + + mmc_register(mmc); + + return 0; +} -- cgit From c7260d153994d65416b9b275838f101738e60564 Mon Sep 17 00:00:00 2001 From: Reinhard Meyer Date: Tue, 27 Jul 2010 16:22:09 +0200 Subject: AT91: add RTT and GPBR based RTC Signed-off-by: Reinhard Meyer --- drivers/rtc/Makefile | 1 + drivers/rtc/at91sam9_rtt.c | 100 +++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 101 insertions(+) create mode 100644 drivers/rtc/at91sam9_rtt.c (limited to 'drivers') diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index 772a49a902..98734db77f 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile @@ -27,6 +27,7 @@ include $(TOPDIR)/config.mk LIB = $(obj)librtc.a +COBJS-$(CONFIG_RTC_AT91SAM9_RTT) += at91sam9_rtt.o COBJS-$(CONFIG_RTC_BFIN) += bfin_rtc.o COBJS-y += date.o COBJS-$(CONFIG_RTC_DS12887) += ds12887.o diff --git a/drivers/rtc/at91sam9_rtt.c b/drivers/rtc/at91sam9_rtt.c new file mode 100644 index 0000000000..de8e30d0d7 --- /dev/null +++ b/drivers/rtc/at91sam9_rtt.c @@ -0,0 +1,100 @@ +/* + * (C) Copyright 2010 + * Reinhard Meyer, reinhard.meyer@emk-elektronik.de + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * Date & Time support for the internal Real-time Timer + * of AT91SAM9260 and compatibles. + * Compatible with the LinuX rtc driver workaround: + * The RTT cannot be written to, but only reset. + * The actual time is the sum of RTT and one of + * the four GPBR registers. + * + * The at91sam9260 has 4 GPBR (0-3). + * For their typical use see at91_gpbr.h ! + * + * make sure u-boot and kernel use the same GPBR ! + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#if defined(CONFIG_CMD_DATE) + +int rtc_get (struct rtc_time *tmp) +{ + at91_rtt_t *rtt = (at91_rtt_t *) AT91_RTT_BASE; + at91_gpbr_t *gpbr = (at91_gpbr_t *) AT91_GPR_BASE; + ulong tim; + ulong tim2; + ulong off; + + do { + tim = readl(&rtt->vr); + tim2 = readl(&rtt->vr); + } while (tim!=tim2); + off = readl(&gpbr->reg[AT91_GPBR_INDEX_TIMEOFF]); + /* off==0 means time is invalid, but we ignore that */ + to_tm (tim+off, tmp); + return 0; +} + +int rtc_set (struct rtc_time *tmp) +{ + at91_rtt_t *rtt = (at91_rtt_t *) AT91_RTT_BASE; + at91_gpbr_t *gpbr = (at91_gpbr_t *) AT91_GPR_BASE; + ulong tim; + + tim = mktime (tmp->tm_year, tmp->tm_mon, tmp->tm_mday, + tmp->tm_hour, tmp->tm_min, tmp->tm_sec); + + /* clear alarm, set prescaler to 32768, clear counter */ + writel(32768+AT91_RTT_RTTRST, &rtt->mr); + writel(~0, &rtt->ar); + writel(tim, &gpbr->reg[AT91_GPBR_INDEX_TIMEOFF]); + /* wait for counter clear to happen, takes less than a 1/32768th second */ + while (readl(&rtt->vr) != 0) + ; + return 0; +} + +void rtc_reset (void) +{ + at91_rtt_t *rtt = (at91_rtt_t *) AT91_RTT_BASE; + at91_gpbr_t *gpbr = (at91_gpbr_t *) AT91_GPR_BASE; + + /* clear alarm, set prescaler to 32768, clear counter */ + writel(32768+AT91_RTT_RTTRST, &rtt->mr); + writel(~0, &rtt->ar); + writel(0, &gpbr->reg[AT91_GPBR_INDEX_TIMEOFF]); + /* wait for counter clear to happen, takes less than a 1/32768th second */ + while (readl(&rtt->vr) != 0) + ; +} + +#endif -- cgit From f09d3b289689d452b456f77d745188a9e6e2e2ee Mon Sep 17 00:00:00 2001 From: Reinhard Meyer Date: Mon, 9 Aug 2010 13:37:59 +0200 Subject: AT91/AVR32: atmel_spi.c: flush RDR before next SPI transaction Signed-off-by: Reinhard Meyer --- drivers/spi/atmel_spi.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/atmel_spi.c b/drivers/spi/atmel_spi.c index 317c0b41b6..d0de931968 100644 --- a/drivers/spi/atmel_spi.c +++ b/drivers/spi/atmel_spi.c @@ -43,7 +43,7 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs, u32 csrx; void *regs; - if (cs > 3 || !spi_cs_is_valid(bus, cs)) + if (!spi_cs_is_valid(bus, cs)) return NULL; switch (bus) { @@ -168,8 +168,17 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, * somewhat quirky, and it doesn't really buy us much anyway * in the context of U-Boot. */ - if (flags & SPI_XFER_BEGIN) + if (flags & SPI_XFER_BEGIN) { spi_cs_activate(slave); + /* + * sometimes the RDR is not empty when we get here, + * in theory that should not happen, but it DOES happen. + * Read it here to be on the safe side. + * That also clears the OVRES flag. Required if the + * following loop exits due to OVRES! + */ + spi_readl(as, RDR); + } for (len_tx = 0, len_rx = 0; len_rx < len; ) { status = spi_readl(as, SR); -- cgit From 5a0a82f42bd6cb67fecaba3e9e08d542090d6a94 Mon Sep 17 00:00:00 2001 From: Steve Sakoman Date: Tue, 10 Aug 2010 12:58:39 -0700 Subject: ARMV7: OMAP: add convenience function to set TWL4030 regulator voltages This patch adds a function to allow one to easily set the target voltage for the TWL4030 regulators. It also modifies the existing code to use this new function. Applicable definitions are moved out of the driver file and into the header file so that they are generally accessible Signed-off-by: Steve Sakoman Signed-off-by: Sandeep Paulraj --- drivers/power/twl4030.c | 69 +++++++++++++++++++++---------------------------- 1 file changed, 30 insertions(+), 39 deletions(-) (limited to 'drivers') diff --git a/drivers/power/twl4030.c b/drivers/power/twl4030.c index eb066cb58d..1a5408959e 100644 --- a/drivers/power/twl4030.c +++ b/drivers/power/twl4030.c @@ -59,57 +59,48 @@ void twl4030_power_reset_init(void) } } - /* - * Power Init + * Set Device Group and Voltage */ -#define DEV_GRP_P1 0x20 -#define VAUX3_VSEL_28 0x03 -#define DEV_GRP_ALL 0xE0 -#define VPLL2_VSEL_18 0x05 -#define VDAC_VSEL_18 0x03 +void twl4030_pmrecv_vsel_cfg(u8 vsel_reg, u8 vsel_val, + u8 dev_grp, u8 dev_grp_sel) +{ + /* Select the Device Group */ + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, dev_grp_sel, + dev_grp); + + /* Select the Voltage */ + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, vsel_val, + vsel_reg); +} void twl4030_power_init(void) { - unsigned char byte; - /* set VAUX3 to 2.8V */ - byte = DEV_GRP_P1; - twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, - TWL4030_PM_RECEIVER_VAUX3_DEV_GRP); - byte = VAUX3_VSEL_28; - twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, - TWL4030_PM_RECEIVER_VAUX3_DEDICATED); + twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX3_DEDICATED, + TWL4030_PM_RECEIVER_VAUX3_VSEL_28, + TWL4030_PM_RECEIVER_VAUX3_DEV_GRP, + TWL4030_PM_RECEIVER_DEV_GRP_P1); /* set VPLL2 to 1.8V */ - byte = DEV_GRP_ALL; - twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, - TWL4030_PM_RECEIVER_VPLL2_DEV_GRP); - byte = VPLL2_VSEL_18; - twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, - TWL4030_PM_RECEIVER_VPLL2_DEDICATED); + twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VPLL2_DEDICATED, + TWL4030_PM_RECEIVER_VPLL2_VSEL_18, + TWL4030_PM_RECEIVER_VPLL2_DEV_GRP, + TWL4030_PM_RECEIVER_DEV_GRP_ALL); /* set VDAC to 1.8V */ - byte = DEV_GRP_P1; - twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, - TWL4030_PM_RECEIVER_VDAC_DEV_GRP); - byte = VDAC_VSEL_18; - twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, - TWL4030_PM_RECEIVER_VDAC_DEDICATED); + twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VDAC_DEDICATED, + TWL4030_PM_RECEIVER_VDAC_VSEL_18, + TWL4030_PM_RECEIVER_VDAC_DEV_GRP, + TWL4030_PM_RECEIVER_DEV_GRP_P1); } -#define VMMC1_VSEL_30 0x02 - void twl4030_power_mmc_init(void) { - unsigned char byte; - - byte = DEV_GRP_P1; - twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, - TWL4030_PM_RECEIVER_VMMC1_DEV_GRP); - - /* 3 Volts */ - byte = VMMC1_VSEL_30; - twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, - TWL4030_PM_RECEIVER_VMMC1_DEDICATED); + /* Set VMMC1 to 3 Volts */ + twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VMMC1_DEDICATED, + TWL4030_PM_RECEIVER_VMMC1_VSEL_30, + TWL4030_PM_RECEIVER_VMMC1_DEV_GRP, + TWL4030_PM_RECEIVER_DEV_GRP_P1); } + -- cgit From 4c468397cf71f2ab613c9c8989ab56d4b306a67f Mon Sep 17 00:00:00 2001 From: Steve Sakoman Date: Thu, 19 Aug 2010 20:14:01 -0700 Subject: mtd: nand: supress 'unknown NAND' warning if no nand is found This printk was added recently and results in ugly output on systems with no NAND: NAND: nand_get_flash_type: unknown NAND device: Manufacturer ID: 0x00, Chip ID: 0x00 0 MiB instead of: NAND: 0 MiB Signed-off-by: Steve Sakoman Acked-by: Scott Wood Signed-off-by: Sandeep Paulraj --- drivers/mtd/nand/nand_base.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index ed1c9c9a88..7d178468ad 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2653,9 +2653,12 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, } if (!type) { - printk(KERN_INFO "%s: unknown NAND device: Manufacturer ID:" - " 0x%02x, Chip ID: 0x%02x\n", __func__, - *maf_id, dev_id); + /* supress warning if there is no nand */ + if (*maf_id != 0x00 && *maf_id != 0xff && + dev_id != 0x00 && dev_id != 0xff) + printk(KERN_INFO "%s: unknown NAND device: " + "Manufacturer ID: 0x%02x, Chip ID: 0x%02x\n", + __func__, *maf_id, dev_id); return ERR_PTR(-ENODEV); } -- cgit