From patchwork Mon Jan 2 22:29:03 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 710321 X-Patchwork-Delegate: jagannadh.teki@gmail.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from theia.denx.de (theia.denx.de [85.214.87.163]) by ozlabs.org (Postfix) with ESMTP id 3tssFC4Pvyz9t0Z for ; Tue, 3 Jan 2017 09:29:19 +1100 (AEDT) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id E7D7BB3879; Mon, 2 Jan 2017 23:29:17 +0100 (CET) Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id haYSSTXI3nM3; Mon, 2 Jan 2017 23:29:17 +0100 (CET) Received: from theia.denx.de (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 792E2A760B; Mon, 2 Jan 2017 23:29:17 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 4C841A760B for ; Mon, 2 Jan 2017 23:29:14 +0100 (CET) Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id fBlgv4mfG55V for ; Mon, 2 Jan 2017 23:29:14 +0100 (CET) X-policyd-weight: NOT_IN_SBL_XBL_SPAMHAUS=-1.5 NOT_IN_SPAMCOP=-1.5 NOT_IN_BL_NJABL=-1.5 (only DNSBL check requested) Received: from mail-wj0-f193.google.com (mail-wj0-f193.google.com [209.85.210.193]) by theia.denx.de (Postfix) with ESMTPS id 11FA0A75AC for ; Mon, 2 Jan 2017 23:29:11 +0100 (CET) Received: by mail-wj0-f193.google.com with SMTP id j10so70019878wjb.3 for ; Mon, 02 Jan 2017 14:29:11 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=Uk9zGfmD/XV7pce+5t5rotADZKOKepOjlAzVsAogwiU=; b=jpl0/iDBeIGP1/hPq/PfrHrjRF0QI0CpY94AzFj2ioJkF96pGJsrILV3IaqD4YxTbC 966gaONEPw/Zg5PZnRkMy81coKdT78O0CB2Y9468SFUYlWtoMKd3xD9itWX6STrU+oaZ RRV9RlyO45GlWQs4AeibAgLJbUcXpg3k11Ik2xWAqjRNr57UnULygnB7fE81VJqUtJi2 J4Z1DCmgjesQEn1RIx9CvwQt+BEvA+LLZAEF6/UYDMQc2ce9cyxpkg2a0UAEui705/BJ bg+zrTG5ims0Y59RqQvfqQaS9kxlNr8JRFZPLqwfFCbz/kmk2yY+5OMsnwnBnG1wGSZ5 GJTA== X-Gm-Message-State: AIkVDXK/Z5dJxsDYU56IOsdE0zaohKEEg5EBbIzf8ExXhV85FStebZo0slxulKMD9Ml/HA== X-Received: by 10.194.163.234 with SMTP id yl10mr62739472wjb.112.1483396150766; Mon, 02 Jan 2017 14:29:10 -0800 (PST) Received: from localhost.localdomain ([5.170.79.20]) by smtp.gmail.com with ESMTPSA id 197sm86454000wmy.16.2017.01.02.14.29.09 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 02 Jan 2017 14:29:09 -0800 (PST) From: Jagan Teki To: U-Boot@lists.denx.de Date: Mon, 2 Jan 2017 23:29:03 +0100 Message-Id: <1483396144-29509-1-git-send-email-jagan@openedev.com> X-Mailer: git-send-email 1.9.1 Cc: Jagan Teki Subject: [U-Boot] [PATCH 1/2] spi: Zap ep93xx_spi driver and related code X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.15 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" Dropped becuase - driver and related configs not used any board. - no dm conversion. Cc: Heiko Schocher Cc: Sergey Kostanbaev Signed-off-by: Jagan Teki --- board/cirrus/edb93xx/edb93xx.c | 98 --------------- drivers/spi/Makefile | 1 - drivers/spi/ep93xx_spi.c | 272 ----------------------------------------- include/configs/edb93xx.h | 10 -- scripts/config_whitelist.txt | 4 - 5 files changed, 385 deletions(-) delete mode 100644 drivers/spi/ep93xx_spi.c diff --git a/board/cirrus/edb93xx/edb93xx.c b/board/cirrus/edb93xx/edb93xx.c index 8963d3a..51ff162 100644 --- a/board/cirrus/edb93xx/edb93xx.c +++ b/board/cirrus/edb93xx/edb93xx.c @@ -282,101 +282,3 @@ int dram_init(void) gd->ram_size = dram_init_banksize_int(1); return 0; } - - -#ifdef CONFIG_EP93XX_SPI -#include - -/* - * EGIO0-EGIPO7 -> port A - * EGIO8-EGIP15 -> port B - */ - -static void ep93xx_set_epgio(unsigned num) -{ - struct gpio_regs *regs = (struct gpio_regs *)GPIO_BASE; - if (num < 8) - writel(readl(®s->padr) | (1<padr); - else - writel(readl(®s->pbdr) | (1<<(num-8)), ®s->pbdr); -} - -static void ep93xx_clear_epgio(unsigned num) -{ - struct gpio_regs *regs = (struct gpio_regs *)GPIO_BASE; - if (num < 8) - writel(readl(®s->padr) & (~(1<padr); - else - writel(readl(®s->pbdr) & (~(1<<(num-8))), ®s->pbdr); -} - -static void ep93xx_dir_epgio_out(unsigned num) -{ - struct gpio_regs *regs = (struct gpio_regs *)GPIO_BASE; - if (num < 8) - writel(readl(®s->paddr) | (1<paddr); - else - writel(readl(®s->pbddr) | (1<<(num-8)), ®s->pbddr); -} - -int spi_cs_is_valid(unsigned int bus, unsigned int cs) -{ - if (bus == 0 && cs < 16) - return 1; - - return 0; -} - -void spi_cs_activate(struct spi_slave *slave) -{ - ep93xx_clear_epgio(slave->cs); -} - -void spi_cs_deactivate(struct spi_slave *slave) -{ - ep93xx_set_epgio(slave->cs); -} - -#ifdef CONFIG_MMC_SPI -#include - -#ifndef CONFIG_MMC_SPI_CS_EPGIO -# define CONFIG_MMC_SPI_CS_EPGIO 4 -#endif - -#ifndef CONFIG_MMC_SPI_SPEED -# define CONFIG_MMC_SPI_SPEED 25000000 -#endif - -#ifndef CONFIG_MMC_SPI_MODE -# define CONFIG_MMC_SPI_MODE SPI_MODE_0 -#endif - -int board_mmc_init(bd_t *bis) -{ - struct gpio_regs *regs = (struct gpio_regs *)GPIO_BASE; - - ep93xx_set_epgio(CONFIG_MMC_SPI_CS_EPGIO); - ep93xx_dir_epgio_out(CONFIG_MMC_SPI_CS_EPGIO); - -#ifdef CONFIG_MMC_SPI_POWER_EGPIO - ep93xx_dir_epgio_out(CONFIG_MMC_SPI_POWER_EGPIO); - ep93xx_set_epgio(CONFIG_MMC_SPI_POWER_EGPIO); -#elif defined(CONFIG_MMC_SPI_NPOWER_EGPIO) - ep93xx_dir_epgio_out(CONFIG_MMC_SPI_NPOWER_EGPIO); - ep93xx_clear_epgio(CONFIG_MMC_SPI_NPOWER_EGPIO); -#endif - struct mmc *mmc = mmc_spi_init(0, CONFIG_MMC_SPI_CS_EPGIO, - CONFIG_MMC_SPI_SPEED, CONFIG_MMC_SPI_MODE); - - if (!mmc) { - printf("Failed to create MMC Device\n"); - return 1; - } - mmc_init(mmc); - return 0; -} - - -#endif /* CONFIG_MMC_SPI */ -#endif /* CONFIG_EP93XX_SPI */ diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index c1ce158..521911b 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -26,7 +26,6 @@ obj-$(CONFIG_CF_SPI) += cf_spi.o obj-$(CONFIG_CF_QSPI) += cf_qspi.o obj-$(CONFIG_DAVINCI_SPI) += davinci_spi.o obj-$(CONFIG_DESIGNWARE_SPI) += designware_spi.o -obj-$(CONFIG_EP93XX_SPI) += ep93xx_spi.o obj-$(CONFIG_EXYNOS_SPI) += exynos_spi.o obj-$(CONFIG_FSL_DSPI) += fsl_dspi.o obj-$(CONFIG_FSL_ESPI) += fsl_espi.o diff --git a/drivers/spi/ep93xx_spi.c b/drivers/spi/ep93xx_spi.c deleted file mode 100644 index cb682dd..0000000 --- a/drivers/spi/ep93xx_spi.c +++ /dev/null @@ -1,272 +0,0 @@ -/* - * SPI Driver for EP93xx - * - * Copyright (C) 2013 Sergey Kostanabev fairwaves.ru> - * - * Inspired form linux kernel driver and atmel uboot driver - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include -#include -#include - -#include - -#include - -#define SSPBASE SPI_BASE - -#define SSPCR0 0x0000 -#define SSPCR0_MODE_SHIFT 6 -#define SSPCR0_SCR_SHIFT 8 -#define SSPCR0_SPH BIT(7) -#define SSPCR0_SPO BIT(6) -#define SSPCR0_FRF_SPI 0 -#define SSPCR0_DSS_8BIT 7 - -#define SSPCR1 0x0004 -#define SSPCR1_RIE BIT(0) -#define SSPCR1_TIE BIT(1) -#define SSPCR1_RORIE BIT(2) -#define SSPCR1_LBM BIT(3) -#define SSPCR1_SSE BIT(4) -#define SSPCR1_MS BIT(5) -#define SSPCR1_SOD BIT(6) - -#define SSPDR 0x0008 - -#define SSPSR 0x000c -#define SSPSR_TFE BIT(0) -#define SSPSR_TNF BIT(1) -#define SSPSR_RNE BIT(2) -#define SSPSR_RFF BIT(3) -#define SSPSR_BSY BIT(4) -#define SSPCPSR 0x0010 - -#define SSPIIR 0x0014 -#define SSPIIR_RIS BIT(0) -#define SSPIIR_TIS BIT(1) -#define SSPIIR_RORIS BIT(2) -#define SSPICR SSPIIR - -#define SSPCLOCK 14745600 -#define SSP_MAX_RATE (SSPCLOCK / 2) -#define SSP_MIN_RATE (SSPCLOCK / (254 * 256)) - -/* timeout in milliseconds */ -#define SPI_TIMEOUT 5 -/* maximum depth of RX/TX FIFO */ -#define SPI_FIFO_SIZE 8 - -struct ep93xx_spi_slave { - struct spi_slave slave; - - unsigned sspcr0; - unsigned sspcpsr; -}; - -static inline struct ep93xx_spi_slave *to_ep93xx_spi(struct spi_slave *slave) -{ - return container_of(slave, struct ep93xx_spi_slave, slave); -} - -void spi_init() -{ -} - -static inline void ep93xx_spi_write_u8(u16 reg, u8 value) -{ - writel(value, (unsigned int *)(SSPBASE + reg)); -} - -static inline u8 ep93xx_spi_read_u8(u16 reg) -{ - return readl((unsigned int *)(SSPBASE + reg)); -} - -static inline void ep93xx_spi_write_u16(u16 reg, u16 value) -{ - writel(value, (unsigned int *)(SSPBASE + reg)); -} - -static inline u16 ep93xx_spi_read_u16(u16 reg) -{ - return (u16)readl((unsigned int *)(SSPBASE + reg)); -} - -static int ep93xx_spi_init_hw(unsigned int rate, unsigned int mode, - struct ep93xx_spi_slave *slave) -{ - unsigned cpsr, scr; - - if (rate > SSP_MAX_RATE) - rate = SSP_MAX_RATE; - - if (rate < SSP_MIN_RATE) - return -1; - - /* Calculate divisors so that we can get speed according the - * following formula: - * rate = spi_clock_rate / (cpsr * (1 + scr)) - * - * cpsr must be even number and starts from 2, scr can be any number - * between 0 and 255. - */ - for (cpsr = 2; cpsr <= 254; cpsr += 2) { - for (scr = 0; scr <= 255; scr++) { - if ((SSPCLOCK / (cpsr * (scr + 1))) <= rate) { - /* Set CHPA and CPOL, SPI format and 8bit */ - unsigned sspcr0 = (scr << SSPCR0_SCR_SHIFT) | - SSPCR0_FRF_SPI | SSPCR0_DSS_8BIT; - if (mode & SPI_CPHA) - sspcr0 |= SSPCR0_SPH; - if (mode & SPI_CPOL) - sspcr0 |= SSPCR0_SPO; - - slave->sspcr0 = sspcr0; - slave->sspcpsr = cpsr; - return 0; - } - } - } - - return -1; -} - -void spi_set_speed(struct spi_slave *slave, unsigned int hz) -{ - struct ep93xx_spi_slave *as = to_ep93xx_spi(slave); - - unsigned int mode = 0; - if (as->sspcr0 & SSPCR0_SPH) - mode |= SPI_CPHA; - if (as->sspcr0 & SSPCR0_SPO) - mode |= SPI_CPOL; - - ep93xx_spi_init_hw(hz, mode, as); -} - -struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs, - unsigned int max_hz, unsigned int mode) -{ - struct ep93xx_spi_slave *as; - - if (!spi_cs_is_valid(bus, cs)) - return NULL; - - as = spi_alloc_slave(struct ep93xx_spi_slave, bus, cs); - if (!as) - return NULL; - - if (ep93xx_spi_init_hw(max_hz, mode, as)) { - free(as); - return NULL; - } - - return &as->slave; -} - -void spi_free_slave(struct spi_slave *slave) -{ - struct ep93xx_spi_slave *as = to_ep93xx_spi(slave); - - free(as); -} - -int spi_claim_bus(struct spi_slave *slave) -{ - struct ep93xx_spi_slave *as = to_ep93xx_spi(slave); - - /* Enable the SPI hardware */ - ep93xx_spi_write_u8(SSPCR1, SSPCR1_SSE); - - - ep93xx_spi_write_u8(SSPCPSR, as->sspcpsr); - ep93xx_spi_write_u16(SSPCR0, as->sspcr0); - - debug("Select CS:%d SSPCPSR=%02x SSPCR0=%04x\n", - slave->cs, as->sspcpsr, as->sspcr0); - return 0; -} - -void spi_release_bus(struct spi_slave *slave) -{ - /* Disable the SPI hardware */ - ep93xx_spi_write_u8(SSPCR1, 0); -} - -int spi_xfer(struct spi_slave *slave, unsigned int bitlen, - const void *dout, void *din, unsigned long flags) -{ - unsigned int len_tx; - unsigned int len_rx; - unsigned int len; - u32 status; - const u8 *txp = dout; - u8 *rxp = din; - u8 value; - - debug("spi_xfer: slave %u:%u dout %p din %p bitlen %u\n", - slave->bus, slave->cs, (uint *)dout, (uint *)din, bitlen); - - - if (bitlen == 0) - /* Finish any previously submitted transfers */ - goto out; - - if (bitlen % 8) { - /* Errors always terminate an ongoing transfer */ - flags |= SPI_XFER_END; - goto out; - } - - len = bitlen / 8; - - - if (flags & SPI_XFER_BEGIN) { - /* Empty RX FIFO */ - while ((ep93xx_spi_read_u8(SSPSR) & SSPSR_RNE)) - ep93xx_spi_read_u8(SSPDR); - - spi_cs_activate(slave); - } - - for (len_tx = 0, len_rx = 0; len_rx < len; ) { - status = ep93xx_spi_read_u8(SSPSR); - - if ((len_tx < len) && (status & SSPSR_TNF)) { - if (txp) - value = *txp++; - else - value = 0xff; - - ep93xx_spi_write_u8(SSPDR, value); - len_tx++; - } - - if (status & SSPSR_RNE) { - value = ep93xx_spi_read_u8(SSPDR); - - if (rxp) - *rxp++ = value; - len_rx++; - } - } - -out: - if (flags & SPI_XFER_END) { - /* - * Wait until the transfer is completely done before - * we deactivate CS. - */ - do { - status = ep93xx_spi_read_u8(SSPSR); - } while (status & SSPSR_BSY); - - spi_cs_deactivate(slave); - } - - return 0; -} diff --git a/include/configs/edb93xx.h b/include/configs/edb93xx.h index a83c617..9080b9a 100644 --- a/include/configs/edb93xx.h +++ b/include/configs/edb93xx.h @@ -229,16 +229,6 @@ #define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE #define CONFIG_ENV_SIZE_REDUND CONFIG_ENV_SIZE -/* Define to enable MMC on SPI support */ -/* #define CONFIG_EP93XX_SPI_MMC */ - -#ifdef CONFIG_EP93XX_SPI_MMC -#define CONFIG_EP93XX_SPI -#define CONFIG_GENERIC_MMC -#define CONFIG_MMC_SPI -#define CONFIG_MMC_SPI_NPOWER_EGPIO 9 -#endif - #define CONFIG_USB_OHCI_NEW #define CONFIG_USB_OHCI_EP93XX #define CONFIG_SYS_USB_OHCI_CPU_INIT diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt index 6d614c6..2533e26 100644 --- a/scripts/config_whitelist.txt +++ b/scripts/config_whitelist.txt @@ -1098,8 +1098,6 @@ CONFIG_EP9312 CONFIG_EP9315 CONFIG_EP93XX CONFIG_EP93XX_NO_FLASH_CFG -CONFIG_EP93XX_SPI -CONFIG_EP93XX_SPI_MMC CONFIG_EPH_POWER_EN CONFIG_EPOLL CONFIG_ESBC_ADDR_64BIT @@ -3078,8 +3076,6 @@ CONFIG_MMC_SPI_CRC_ON CONFIG_MMC_SPI_CS CONFIG_MMC_SPI_CS_EPGIO CONFIG_MMC_SPI_MODE -CONFIG_MMC_SPI_NPOWER_EGPIO -CONFIG_MMC_SPI_POWER_EGPIO CONFIG_MMC_SPI_SPEED CONFIG_MMC_SUNXI CONFIG_MMC_SUNXI_SLOT