From d4db204893ce8c23df31641e3e61a811e13ae67a Mon Sep 17 00:00:00 2001 From: hauke Date: Thu, 3 Jan 2013 01:48:43 +0000 Subject: brcm47xx: remove support for kernel version 3.3 git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34986 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- ...bcma-add-functions-to-write-to-nand-flash.patch | 232 --------------------- 1 file changed, 232 deletions(-) delete mode 100644 target/linux/brcm47xx/patches-3.3/071-bcma-add-functions-to-write-to-nand-flash.patch (limited to 'target/linux/brcm47xx/patches-3.3/071-bcma-add-functions-to-write-to-nand-flash.patch') diff --git a/target/linux/brcm47xx/patches-3.3/071-bcma-add-functions-to-write-to-nand-flash.patch b/target/linux/brcm47xx/patches-3.3/071-bcma-add-functions-to-write-to-nand-flash.patch deleted file mode 100644 index f1b4f7feb..000000000 --- a/target/linux/brcm47xx/patches-3.3/071-bcma-add-functions-to-write-to-nand-flash.patch +++ /dev/null @@ -1,232 +0,0 @@ ---- a/drivers/bcma/driver_chipcommon_nflash.c -+++ b/drivers/bcma/driver_chipcommon_nflash.c -@@ -2,16 +2,23 @@ - * Broadcom specific AMBA - * ChipCommon NAND flash interface - * -+ * Copyright 2011, Tathagata Das -+ * Copyright 2010, Broadcom Corporation -+ * - * Licensed under the GNU/GPL. See COPYING for details. - */ - -+#include -+#include -+#include - #include - #include -+#include - - #include "bcma_private.h" - - struct platform_device bcma_nflash_dev = { -- .name = "bcma_nflash", -+ .name = "bcm47xx-nflash", - .num_resources = 0, - }; - -@@ -31,6 +38,11 @@ int bcma_nflash_init(struct bcma_drv_cc - return -ENODEV; - } - -+ if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4706) { -+ bcma_err(bus, "NAND flash support for BCM4706 not implemented\n"); -+ return -ENOTSUPP; -+ } -+ - cc->nflash.present = true; - if (cc->core->id.rev == 38 && - (cc->status & BCMA_CC_CHIPST_5357_NAND_BOOT)) -@@ -42,3 +54,141 @@ int bcma_nflash_init(struct bcma_drv_cc - - return 0; - } -+ -+/* Issue a nand flash command */ -+static inline void bcma_nflash_cmd(struct bcma_drv_cc *cc, u32 opcode) -+{ -+ bcma_cc_write32(cc, NAND_CMD_START, opcode); -+ bcma_cc_read32(cc, NAND_CMD_START); -+} -+ -+/* Check offset and length */ -+static int bcma_nflash_offset_is_valid(struct bcma_drv_cc *cc, u32 offset, u32 len, u32 mask) -+{ -+ if ((offset & mask) != 0 || (len & mask) != 0) { -+ pr_err("%s(): Address is not aligned. offset: %x, len: %x, mask: %x\n", __func__, offset, len, mask); -+ return 1; -+ } -+ -+ if ((((offset + len) >> 20) >= cc->nflash.size) && -+ (((offset + len) & ((1 << 20) - 1)) != 0)) { -+ pr_err("%s(): Address is outside Flash memory region. offset: %x, len: %x, mask: %x\n", __func__, offset, len, mask); -+ return 1; -+ } -+ -+ return 0; -+} -+ -+#define NF_RETRIES 1000000 -+ -+/* Poll for command completion. Returns zero when complete. */ -+int bcma_nflash_poll(struct bcma_drv_cc *cc) -+{ -+ u32 retries = NF_RETRIES; -+ u32 pollmask = NIST_CTRL_READY|NIST_FLASH_READY; -+ u32 mask; -+ -+ while (retries--) { -+ mask = bcma_cc_read32(cc, NAND_INTFC_STATUS) & pollmask; -+ if (mask == pollmask) -+ return 0; -+ cpu_relax(); -+ } -+ -+ if (!retries) { -+ pr_err("bcma_nflash_poll: not ready\n"); -+ return -1; -+ } -+ -+ return 0; -+} -+ -+/* Read len bytes starting at offset into buf. Returns number of bytes read. */ -+int bcma_nflash_read(struct bcma_drv_cc *cc, u32 offset, u32 len, u8 *buf) -+{ -+ u32 mask; -+ int i; -+ u32 *to, val, res; -+ -+ mask = NFL_SECTOR_SIZE - 1; -+ if (bcma_nflash_offset_is_valid(cc, offset, len, mask)) -+ return 0; -+ -+ to = (u32 *)buf; -+ res = len; -+ while (res > 0) { -+ bcma_cc_write32(cc, NAND_CMD_ADDR, offset); -+ bcma_nflash_cmd(cc, NCMD_PAGE_RD); -+ if (bcma_nflash_poll(cc) < 0) -+ break; -+ val = bcma_cc_read32(cc, NAND_INTFC_STATUS); -+ if ((val & NIST_CACHE_VALID) == 0) -+ break; -+ bcma_cc_write32(cc, NAND_CACHE_ADDR, 0); -+ for (i = 0; i < NFL_SECTOR_SIZE; i += 4, to++) { -+ *to = bcma_cc_read32(cc, NAND_CACHE_DATA); -+ } -+ res -= NFL_SECTOR_SIZE; -+ offset += NFL_SECTOR_SIZE; -+ } -+ return (len - res); -+} -+ -+/* Write len bytes starting at offset into buf. Returns success (0) or failure (!0). -+ * Should poll for completion. -+ */ -+int bcma_nflash_write(struct bcma_drv_cc *cc, u32 offset, u32 len, -+ const u8 *buf) -+{ -+ u32 mask; -+ int i; -+ u32 *from, res, reg; -+ -+ mask = cc->nflash.pagesize - 1; -+ if (bcma_nflash_offset_is_valid(cc, offset, len, mask)) -+ return 1; -+ -+ /* disable partial page enable */ -+ reg = bcma_cc_read32(cc, NAND_ACC_CONTROL); -+ reg &= ~NAC_PARTIAL_PAGE_EN; -+ bcma_cc_write32(cc, NAND_ACC_CONTROL, reg); -+ -+ from = (u32 *)buf; -+ res = len; -+ while (res > 0) { -+ bcma_cc_write32(cc, NAND_CACHE_ADDR, 0); -+ for (i = 0; i < cc->nflash.pagesize; i += 4, from++) { -+ if (i % 512 == 0) -+ bcma_cc_write32(cc, NAND_CMD_ADDR, i); -+ bcma_cc_write32(cc, NAND_CACHE_DATA, *from); -+ } -+ bcma_cc_write32(cc, NAND_CMD_ADDR, offset + cc->nflash.pagesize - 512); -+ bcma_nflash_cmd(cc, NCMD_PAGE_PROG); -+ if (bcma_nflash_poll(cc) < 0) -+ break; -+ res -= cc->nflash.pagesize; -+ offset += cc->nflash.pagesize; -+ } -+ -+ if (res <= 0) -+ return 0; -+ else -+ return (len - res); -+} -+ -+/* Erase a region. Returns success (0) or failure (-1). -+ * Poll for completion. -+ */ -+int bcma_nflash_erase(struct bcma_drv_cc *cc, u32 offset) -+{ -+ if ((offset >> 20) >= cc->nflash.size) -+ return -1; -+ if ((offset & (cc->nflash.blocksize - 1)) != 0) -+ return -1; -+ -+ bcma_cc_write32(cc, NAND_CMD_ADDR, offset); -+ bcma_nflash_cmd(cc, NCMD_BLOCK_ERASE); -+ if (bcma_nflash_poll(cc) < 0) -+ return -1; -+ return 0; -+} ---- a/include/linux/bcma/bcma_driver_chipcommon.h -+++ b/include/linux/bcma/bcma_driver_chipcommon.h -@@ -4,6 +4,7 @@ - #include - - #include -+#include - - /** ChipCommon core registers. **/ - #define BCMA_CC_ID 0x0000 -@@ -521,17 +522,6 @@ struct bcma_pflash { - }; - - --#ifdef CONFIG_BCMA_NFLASH --struct mtd_info; -- --struct bcma_nflash { -- bool present; -- bool boot; /* This is the flash the SoC boots from */ -- -- struct mtd_info *mtd; --}; --#endif -- - struct bcma_serial_port { - void *regs; - unsigned long clockspeed; -@@ -557,7 +547,7 @@ struct bcma_drv_cc { - struct bcm47xx_sflash sflash; - #endif - #ifdef CONFIG_BCMA_NFLASH -- struct bcma_nflash nflash; -+ struct bcm47xx_nflash nflash; - #endif - - int nr_serial_ports; -@@ -616,4 +606,13 @@ extern void bcma_chipco_regctl_maskset(s - u32 offset, u32 mask, u32 set); - extern void bcma_pmu_spuravoid_pllupdate(struct bcma_drv_cc *cc, int spuravoid); - -+#ifdef CONFIG_BCMA_NFLASH -+/* Chipcommon nflash support. */ -+int bcma_nflash_read(struct bcma_drv_cc *cc, u32 offset, u32 len, u8 *buf); -+int bcma_nflash_poll(struct bcma_drv_cc *cc); -+int bcma_nflash_write(struct bcma_drv_cc *cc, u32 offset, u32 len, const u8 *buf); -+int bcma_nflash_erase(struct bcma_drv_cc *cc, u32 offset); -+int bcma_nflash_commit(struct bcma_drv_cc *cc, u32 offset, u32 len, const u8 *buf); -+#endif -+ - #endif /* LINUX_BCMA_DRIVER_CC_H_ */ -- cgit v1.2.3