Date: Mon, 13 Oct 2008 20:07:13 +0000 (UTC) From: Rafal Jaworowski <raj@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r183840 - in head/sys: arm/arm arm/include arm/mv arm/mv/discovery arm/mv/kirkwood arm/mv/orion conf dev/uart Message-ID: <200810132007.m9DK7DwQ085091@svn.freebsd.org>
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Author: raj Date: Mon Oct 13 20:07:13 2008 New Revision: 183840 URL: http://svn.freebsd.org/changeset/base/183840 Log: Introduce basic support for Marvell families of system-on-chip ARM devices: * Orion - 88F5181 - 88F5182 - 88F5281 * Kirkwood - 88F6281 * Discovery - MV78100 The above families of SOCs are built around CPU cores compliant with ARMv5TE instruction set architecture definition. They share a number of integrated peripherals. This commit brings support for the following basic elements: * GPIO * Interrupt controller * L1, L2 cache * Timers, watchdog, RTC * TWSI (I2C) * UART Other peripherals drivers will be introduced separately. Reviewed by: imp, marcel, stass (Thanks guys!) Obtained from: Marvell, Semihalf Added: head/sys/arm/mv/ head/sys/arm/mv/bus_space.c (contents, props changed) head/sys/arm/mv/common.c (contents, props changed) head/sys/arm/mv/discovery/ head/sys/arm/mv/discovery/db78xxx.c (contents, props changed) head/sys/arm/mv/discovery/discovery.c (contents, props changed) head/sys/arm/mv/discovery/files.db78xxx (contents, props changed) head/sys/arm/mv/discovery/std.db78xxx (contents, props changed) head/sys/arm/mv/files.mv (contents, props changed) head/sys/arm/mv/gpio.c (contents, props changed) head/sys/arm/mv/ic.c (contents, props changed) head/sys/arm/mv/kirkwood/ head/sys/arm/mv/kirkwood/db88f6xxx.c (contents, props changed) head/sys/arm/mv/kirkwood/files.db88f6xxx (contents, props changed) head/sys/arm/mv/kirkwood/kirkwood.c (contents, props changed) head/sys/arm/mv/kirkwood/std.db88f6xxx (contents, props changed) head/sys/arm/mv/mv_machdep.c (contents, props changed) head/sys/arm/mv/mvreg.h (contents, props changed) head/sys/arm/mv/mvvar.h (contents, props changed) head/sys/arm/mv/obio.c (contents, props changed) head/sys/arm/mv/orion/ head/sys/arm/mv/orion/db88f5xxx.c (contents, props changed) head/sys/arm/mv/orion/files.db88f5xxx (contents, props changed) head/sys/arm/mv/orion/orion.c (contents, props changed) head/sys/arm/mv/orion/std.db88f5xxx (contents, props changed) head/sys/arm/mv/rtc.c (contents, props changed) head/sys/arm/mv/std.mv (contents, props changed) head/sys/arm/mv/timer.c (contents, props changed) head/sys/arm/mv/twsi.c (contents, props changed) head/sys/dev/uart/uart_bus_mbus.c (contents, props changed) head/sys/dev/uart/uart_cpu_mv.c (contents, props changed) Modified: head/sys/arm/arm/elf_trampoline.c head/sys/arm/include/intr.h head/sys/arm/include/resource.h head/sys/conf/Makefile.arm head/sys/conf/options.arm Modified: head/sys/arm/arm/elf_trampoline.c ============================================================================== --- head/sys/arm/arm/elf_trampoline.c Mon Oct 13 19:14:14 2008 (r183839) +++ head/sys/arm/arm/elf_trampoline.c Mon Oct 13 20:07:13 2008 (r183840) @@ -73,6 +73,8 @@ void __startC(void); #endif #ifdef CPU_XSCALE_81342 #define cpu_l2cache_wbinv_all xscalec3_l2cache_purge +#elif defined(SOC_MV_KIRKWOOD) || defined(SOC_MV_DISCOVERY) +#define cpu_l2cache_wbinv_all feroceon_l2cache_wbinv_all #else #define cpu_l2cache_wbinv_all() #endif Modified: head/sys/arm/include/intr.h ============================================================================== --- head/sys/arm/include/intr.h Mon Oct 13 19:14:14 2008 (r183839) +++ head/sys/arm/include/intr.h Mon Oct 13 20:07:13 2008 (r183840) @@ -44,7 +44,9 @@ #elif defined(CPU_XSCALE_PXA2X0) #include <arm/xscale/pxa/pxareg.h> #define NIRQ IRQ_GPIO_MAX -#elif defined(CPU_ARM9) +#elif defined(SOC_MV_DISCOVERY) +#define NIRQ 96 +#elif defined(CPU_ARM9) || defined(SOC_MV_KIRKWOOD) #define NIRQ 64 #else #define NIRQ 32 Modified: head/sys/arm/include/resource.h ============================================================================== --- head/sys/arm/include/resource.h Mon Oct 13 19:14:14 2008 (r183839) +++ head/sys/arm/include/resource.h Mon Oct 13 20:07:13 2008 (r183840) @@ -41,5 +41,6 @@ #define SYS_RES_DRQ 2 /* isa dma lines */ #define SYS_RES_MEMORY 3 /* i/o memory */ #define SYS_RES_IOPORT 4 /* i/o ports */ +#define SYS_RES_GPIO 5 /* general purpose i/o */ #endif /* !_MACHINE_RESOURCE_H_ */ Added: head/sys/arm/mv/bus_space.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm/mv/bus_space.c Mon Oct 13 20:07:13 2008 (r183840) @@ -0,0 +1,162 @@ +/*- + * Copyright (C) 2008 MARVELL INTERNATIONAL LTD. + * All rights reserved. + * + * Developed by Semihalf. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of MARVELL nor the names of contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> +#include <sys/kernel.h> +#include <sys/malloc.h> + +#include <machine/bus.h> + +/* + * Bus space functions for Marvell SoC family + */ + +/* Prototypes for all the bus_space structure functions */ +bs_protos(generic); +bs_protos(generic_armv4); + +/* + * The obio bus space tag. This is constant for all instances, so + * we never have to explicitly "create" it. + */ +static struct bus_space _base_tag = { + /* cookie */ + (void *) 0, + + /* mapping/unmapping */ + generic_bs_map, + generic_bs_unmap, + generic_bs_subregion, + + /* allocation/deallocation */ + generic_bs_alloc, + generic_bs_free, + + /* barrier */ + generic_bs_barrier, + + /* read (single) */ + generic_bs_r_1, + generic_armv4_bs_r_2, + generic_bs_r_4, + NULL, + + /* read multiple */ + generic_bs_rm_1, + generic_armv4_bs_rm_2, + generic_bs_rm_4, + NULL, + + /* read region */ + generic_bs_rr_1, + generic_armv4_bs_rr_2, + generic_bs_rr_4, + NULL, + + /* write (single) */ + generic_bs_w_1, + generic_armv4_bs_w_2, + generic_bs_w_4, + NULL, + + /* write multiple */ + generic_bs_wm_1, + generic_armv4_bs_wm_2, + generic_bs_wm_4, + NULL, + + /* write region */ + NULL, + NULL, + NULL, + NULL, + + /* set multiple */ + NULL, + NULL, + NULL, + NULL, + + /* set region */ + NULL, + NULL, + NULL, + NULL, + + /* copy */ + NULL, + NULL, + NULL, + NULL, + + /* read stream (single) */ + NULL, + NULL, + NULL, + NULL, + + /* read multiple stream */ + NULL, + generic_armv4_bs_rm_2, /* bus_space_read_multi_stream_2 */ + NULL, + NULL, + + /* read region stream */ + NULL, + NULL, + NULL, + NULL, + + /* write stream (single) */ + NULL, + NULL, + NULL, + NULL, + + /* write multiple stream */ + NULL, + generic_armv4_bs_wm_2, /* bus_space_write_multi_stream_2 */ + NULL, + NULL, + + /* write region stream */ + NULL, + NULL, + NULL, + NULL +}; + +bus_space_tag_t obio_tag = &_base_tag; Added: head/sys/arm/mv/common.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm/mv/common.c Mon Oct 13 20:07:13 2008 (r183840) @@ -0,0 +1,965 @@ +/*- + * Copyright (C) 2008 MARVELL INTERNATIONAL LTD. + * All rights reserved. + * + * Developed by Semihalf. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of MARVELL nor the names of contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/systm.h> +#include <sys/bus.h> + +#include <machine/bus.h> + +#include <arm/mv/mvreg.h> +#include <arm/mv/mvvar.h> + +static int win_eth_can_remap(int i); + +static int decode_win_cpu_valid(void); +static int decode_win_usb_valid(void); +static int decode_win_eth_valid(void); +static int decode_win_pcie_valid(void); + +static void decode_win_cpu_setup(void); +static void decode_win_usb_setup(uint32_t ctrl); +static void decode_win_eth_setup(uint32_t base); +static void decode_win_pcie_setup(uint32_t base); + +static uint32_t dev, rev; + +uint32_t +read_cpu_ctrl(uint32_t reg) +{ + + return (bus_space_read_4(obio_tag, MV_CPU_CONTROL_BASE, reg)); +} + +void +write_cpu_ctrl(uint32_t reg, uint32_t val) +{ + + bus_space_write_4(obio_tag, MV_CPU_CONTROL_BASE, reg, val); +} + +void +cpu_reset(void) +{ + + write_cpu_ctrl(RSTOUTn_MASK, SOFT_RST_OUT_EN); + write_cpu_ctrl(SYSTEM_SOFT_RESET, SYS_SOFT_RST); + while (1); +} + +uint32_t +cpu_extra_feat(void) +{ + uint32_t ef = 0; + + soc_id(&dev, &rev); + if (dev == MV_DEV_88F6281 || dev == MV_DEV_MV78100) + __asm __volatile("mrc p15, 1, %0, c15, c1, 0" : "=r" (ef)); + else if (dev == MV_DEV_88F5182 || dev == MV_DEV_88F5281) + __asm __volatile("mrc p15, 0, %0, c14, c0, 0" : "=r" (ef)); + else if (bootverbose) + printf("This ARM Core does not support any extra features\n"); + + return (ef); +} + +uint32_t +soc_power_ctrl_get(uint32_t mask) +{ + + if (mask != CPU_PM_CTRL_NONE) + mask &= read_cpu_ctrl(CPU_PM_CTRL); + + return (mask); +} + +uint32_t +get_tclk(void) +{ + +#if defined(SOC_MV_DISCOVERY) + return (TCLK_200MHZ); +#else + return (TCLK_166MHZ); +#endif +} + +void +soc_id(uint32_t *dev, uint32_t *rev) +{ + + /* + * Notice: system identifiers are available in the registers range of + * PCIE controller, so using this function is only allowed (and + * possible) after the internal registers range has been mapped in via + * pmap_devmap_bootstrap(). + */ + *dev = bus_space_read_4(obio_tag, MV_PCIE_BASE, 0) >> 16; + *rev = bus_space_read_4(obio_tag, MV_PCIE_BASE, 8) & 0xff; +} + +void +soc_identify(void) +{ + uint32_t d, r; + const char *dev; + const char *rev; + + soc_id(&d, &r); + + printf("SOC: "); + if (bootverbose) + printf("(0x%4x:0x%02x) ", d, r); + + rev = ""; + switch (d) { + case MV_DEV_88F5181: + dev = "Marvell 88F5181"; + if (r == 3) + rev = "B1"; + break; + case MV_DEV_88F5182: + dev = "Marvell 88F5182"; + if (r == 2) + rev = "A2"; + break; + case MV_DEV_88F5281: + dev = "Marvell 88F5281"; + if (r == 4) + rev = "D0"; + else if (r == 5) + rev = "D1"; + else if (r == 6) + rev = "D2"; + break; + case MV_DEV_88F6281: + dev = "Marvell 88F6281"; + break; + case MV_DEV_MV78100: + dev = "Marvell MV78100"; + break; + default: + dev = "UNKNOWN"; + break; + } + + printf("%s", dev); + if (*rev != '\0') + printf(" rev %s", rev); + printf(", TClock %dMHz\n", get_tclk() / 1000 / 1000); + + /* TODO add info on currently set endianess */ +} + +int +soc_decode_win(void) +{ + + /* Retrieve our ID: some windows facilities vary between SoC models */ + soc_id(&dev, &rev); + + if (decode_win_cpu_valid() != 1 || decode_win_usb_valid() != 1 || + decode_win_eth_valid() != 1 || decode_win_idma_valid() != 1 || + decode_win_pcie_valid() != 1) + return(-1); + + decode_win_cpu_setup(); + decode_win_usb_setup(MV_USB0_BASE); + decode_win_eth_setup(MV_ETH0_BASE); + if (dev == MV_DEV_MV78100) + decode_win_eth_setup(MV_ETH1_BASE); + decode_win_idma_setup(); + decode_win_pcie_setup(MV_PCIE_BASE); + + /* TODO set up decode wins for SATA */ + + return (0); +} + +/************************************************************************** + * Decode windows registers accessors + **************************************************************************/ +WIN_REG_IDX_RD(win_cpu, cr, MV_WIN_CPU_CTRL, MV_MBUS_BRIDGE_BASE) +WIN_REG_IDX_RD(win_cpu, br, MV_WIN_CPU_BASE, MV_MBUS_BRIDGE_BASE) +WIN_REG_IDX_RD(win_cpu, remap_l, MV_WIN_CPU_REMAP_LO, MV_MBUS_BRIDGE_BASE) +WIN_REG_IDX_RD(win_cpu, remap_h, MV_WIN_CPU_REMAP_HI, MV_MBUS_BRIDGE_BASE) +WIN_REG_IDX_WR(win_cpu, cr, MV_WIN_CPU_CTRL, MV_MBUS_BRIDGE_BASE) +WIN_REG_IDX_WR(win_cpu, br, MV_WIN_CPU_BASE, MV_MBUS_BRIDGE_BASE) +WIN_REG_IDX_WR(win_cpu, remap_l, MV_WIN_CPU_REMAP_LO, MV_MBUS_BRIDGE_BASE) +WIN_REG_IDX_WR(win_cpu, remap_h, MV_WIN_CPU_REMAP_HI, MV_MBUS_BRIDGE_BASE) + +WIN_REG_IDX_RD(ddr, br, MV_WIN_DDR_BASE, MV_DDR_CADR_BASE) +WIN_REG_IDX_RD(ddr, sz, MV_WIN_DDR_SIZE, MV_DDR_CADR_BASE) + +WIN_REG_IDX_RD(win_usb, cr, MV_WIN_USB_CTRL, MV_USB_AWR_BASE) +WIN_REG_IDX_RD(win_usb, br, MV_WIN_USB_BASE, MV_USB_AWR_BASE) +WIN_REG_IDX_WR(win_usb, cr, MV_WIN_USB_CTRL, MV_USB_AWR_BASE) +WIN_REG_IDX_WR(win_usb, br, MV_WIN_USB_BASE, MV_USB_AWR_BASE) + +WIN_REG_BASE_IDX_RD(win_eth, br, MV_WIN_ETH_BASE) +WIN_REG_BASE_IDX_RD(win_eth, sz, MV_WIN_ETH_SIZE) +WIN_REG_BASE_IDX_RD(win_eth, har, MV_WIN_ETH_REMAP) +WIN_REG_BASE_IDX_WR(win_eth, br, MV_WIN_ETH_BASE) +WIN_REG_BASE_IDX_WR(win_eth, sz, MV_WIN_ETH_SIZE) +WIN_REG_BASE_IDX_WR(win_eth, har, MV_WIN_ETH_REMAP) +WIN_REG_BASE_RD(win_eth, bare, 0x290) +WIN_REG_BASE_RD(win_eth, epap, 0x294) +WIN_REG_BASE_WR(win_eth, bare, 0x290) +WIN_REG_BASE_WR(win_eth, epap, 0x294) + +WIN_REG_BASE_IDX_RD(win_pcie, cr, MV_WIN_PCIE_CTRL); +WIN_REG_BASE_IDX_RD(win_pcie, br, MV_WIN_PCIE_BASE); +WIN_REG_BASE_IDX_RD(win_pcie, remap, MV_WIN_PCIE_REMAP); +WIN_REG_BASE_IDX_WR(win_pcie, cr, MV_WIN_PCIE_CTRL); +WIN_REG_BASE_IDX_WR(win_pcie, br, MV_WIN_PCIE_BASE); +WIN_REG_BASE_IDX_WR(win_pcie, remap, MV_WIN_PCIE_REMAP); +WIN_REG_BASE_IDX_WR(pcie, bar, MV_PCIE_BAR); + +WIN_REG_IDX_RD(win_idma, br, MV_WIN_IDMA_BASE, MV_IDMA_BASE) +WIN_REG_IDX_RD(win_idma, sz, MV_WIN_IDMA_SIZE, MV_IDMA_BASE) +WIN_REG_IDX_RD(win_idma, har, MV_WIN_IDMA_REMAP, MV_IDMA_BASE) +WIN_REG_IDX_RD(win_idma, cap, MV_WIN_IDMA_CAP, MV_IDMA_BASE) +WIN_REG_IDX_WR(win_idma, br, MV_WIN_IDMA_BASE, MV_IDMA_BASE) +WIN_REG_IDX_WR(win_idma, sz, MV_WIN_IDMA_SIZE, MV_IDMA_BASE) +WIN_REG_IDX_WR(win_idma, har, MV_WIN_IDMA_REMAP, MV_IDMA_BASE) +WIN_REG_IDX_WR(win_idma, cap, MV_WIN_IDMA_CAP, MV_IDMA_BASE) +WIN_REG_RD(win_idma, bare, 0xa80, MV_IDMA_BASE) +WIN_REG_WR(win_idma, bare, 0xa80, MV_IDMA_BASE) + +/************************************************************************** + * Decode windows helper routines + **************************************************************************/ +void +soc_dump_decode_win(void) +{ + int i; + + soc_id(&dev, &rev); + + for (i = 0; i < MV_WIN_CPU_MAX; i++) { + printf("CPU window#%d: c 0x%08x, b 0x%08x", i, + win_cpu_cr_read(i), + win_cpu_br_read(i)); + + if (win_cpu_can_remap(i)) + printf(", rl 0x%08x, rh 0x%08x", + win_cpu_remap_l_read(i), + win_cpu_remap_h_read(i)); + + printf("\n"); + } + printf("Internal regs base: 0x%08x\n", + bus_space_read_4(obio_tag, MV_INTREGS_BASE, 0)); + + for (i = 0; i < MV_WIN_DDR_MAX; i++) + printf("DDR CS#%d: b 0x%08x, s 0x%08x\n", i, + ddr_br_read(i), ddr_sz_read(i)); + + for (i = 0; i < MV_WIN_USB_MAX; i++) + printf("USB window#%d: c 0x%08x, b 0x%08x\n", i, + win_usb_cr_read(i), win_usb_br_read(i)); + + for (i = 0; i < MV_WIN_ETH_MAX; i++) { + printf("ETH window#%d: b 0x%08x, s 0x%08x", i, + win_eth_br_read(MV_ETH0_BASE, i), + win_eth_sz_read(MV_ETH0_BASE, i)); + + if (win_eth_can_remap(i)) + printf(", ha 0x%08x", + win_eth_har_read(MV_ETH0_BASE, i)); + + printf("\n"); + } + printf("ETH windows: bare 0x%08x, epap 0x%08x\n", + win_eth_bare_read(MV_ETH0_BASE), + win_eth_epap_read(MV_ETH0_BASE)); + + decode_win_idma_dump(); + printf("\n"); +} + +/************************************************************************** + * CPU windows routines + **************************************************************************/ +int +win_cpu_can_remap(int i) +{ + + /* Depending on the SoC certain windows have remap capability */ + if ((dev == MV_DEV_88F5182 && i < 2) || + (dev == MV_DEV_88F5281 && i < 4) || + (dev == MV_DEV_88F6281 && i < 4) || + (dev == MV_DEV_MV78100 && i < 8)) + return (1); + + return (0); +} + +/* XXX This should check for overlapping remap fields too.. */ +int +decode_win_overlap(int win, int win_no, const struct decode_win *wintab) +{ + const struct decode_win *tab; + int i; + + tab = wintab; + + for (i = 0; i < win_no; i++, tab++) { + if (i == win) + /* Skip self */ + continue; + + if ((tab->base + tab->size - 1) < (wintab + win)->base) + continue; + + else if (((wintab + win)->base + (wintab + win)->size - 1) < + tab->base) + continue; + else + return (i); + } + + return (-1); +} + +static int +decode_win_cpu_valid(void) +{ + int i, j, rv; + uint32_t b, e, s; + + if (cpu_wins_no > MV_WIN_CPU_MAX) { + printf("CPU windows: too many entries: %d\n", cpu_wins_no); + return (-1); + } + + rv = 1; + for (i = 0; i < cpu_wins_no; i++) { + + if (cpu_wins[i].target == 0) { + printf("CPU window#%d: DDR target window is not " + "supposed to be reprogrammed!\n", i); + rv = 0; + } + + if (cpu_wins[i].remap >= 0 && win_cpu_can_remap(i) != 1) { + printf("CPU window#%d: not capable of remapping, but " + "val 0x%08x defined\n", i, cpu_wins[i].remap); + rv = 0; + } + + s = cpu_wins[i].size; + b = cpu_wins[i].base; + e = b + s - 1; + if (s > (0xFFFFFFFF - b + 1)) { + /* + * XXX this boundary check should account for 64bit + * and remapping.. + */ + printf("CPU window#%d: no space for size 0x%08x at " + "0x%08x\n", i, s, b); + rv = 0; + continue; + } + + j = decode_win_overlap(i, cpu_wins_no, &cpu_wins[0]); + if (j >= 0) { + printf("CPU window#%d: (0x%08x - 0x%08x) overlaps " + "with #%d (0x%08x - 0x%08x)\n", i, b, e, j, + cpu_wins[j].base, + cpu_wins[j].base + cpu_wins[j].size - 1); + rv = 0; + } + } + + return (rv); +} + +static void +decode_win_cpu_setup(void) +{ + uint32_t br, cr; + int i; + + /* Disable all CPU windows */ + for (i = 0; i < MV_WIN_CPU_MAX; i++) { + win_cpu_cr_write(i, 0); + win_cpu_br_write(i, 0); + if (win_cpu_can_remap(i)) { + win_cpu_remap_l_write(i, 0); + win_cpu_remap_h_write(i, 0); + } + } + + for (i = 0; i < cpu_wins_no; i++) + if (cpu_wins[i].target > 0) { + + br = cpu_wins[i].base & 0xffff0000; + win_cpu_br_write(i, br); + + if (win_cpu_can_remap(i)) { + if (cpu_wins[i].remap >= 0) { + win_cpu_remap_l_write(i, + cpu_wins[i].remap & 0xffff0000); + win_cpu_remap_h_write(i, 0); + } else { + /* + * Remap function is not used for + * a given window (capable of + * remapping) - set remap field with the + * same value as base. + */ + win_cpu_remap_l_write(i, + cpu_wins[i].base & 0xffff0000); + win_cpu_remap_h_write(i, 0); + } + } + + cr = ((cpu_wins[i].size - 1) & 0xffff0000) | + (cpu_wins[i].attr << 8) | + (cpu_wins[i].target << 4) | 1; + + win_cpu_cr_write(i, cr); + } +} + +/* + * Check if we're able to cover all active DDR banks. + */ +static int +decode_win_can_cover_ddr(int max) +{ + int i, c; + + c = 0; + for (i = 0; i < MV_WIN_DDR_MAX; i++) + if (ddr_is_active(i)) + c++; + + if (c > max) { + printf("Unable to cover all active DDR banks: " + "%d, available windows: %d\n", c, max); + return (0); + } + + return (1); +} + +/************************************************************************** + * DDR windows routines + **************************************************************************/ +int +ddr_is_active(int i) +{ + + if (ddr_sz_read(i) & 0x1) + return (1); + + return (0); +} + +uint32_t +ddr_base(int i) +{ + + return (ddr_br_read(i) & 0xff000000); +} + +uint32_t +ddr_size(int i) +{ + + return ((ddr_sz_read(i) | 0x00ffffff) + 1); +} + +uint32_t +ddr_attr(int i) +{ + + return (i == 0 ? 0xe : + (i == 1 ? 0xd : + (i == 2 ? 0xb : + (i == 3 ? 0x7 : 0xff)))); +} + +uint32_t +ddr_target(int i) +{ + + /* Mbus unit ID is 0x0 for DDR SDRAM controller */ + return (0); +} + +/************************************************************************** + * USB windows routines + **************************************************************************/ +static int +decode_win_usb_valid(void) +{ + + return (decode_win_can_cover_ddr(MV_WIN_USB_MAX)); +} + +/* + * Set USB decode windows. + */ +static void +decode_win_usb_setup(uint32_t ctrl) +{ + uint32_t br, cr; + int i, j; + + /* Disable and clear all USB windows */ + for (i = 0; i < MV_WIN_USB_MAX; i++) { + win_usb_cr_write(i, 0); + win_usb_br_write(i, 0); + } + + /* Only access to active DRAM banks is required */ + for (i = 0; i < MV_WIN_DDR_MAX; i++) + if (ddr_is_active(i)) { + br = ddr_base(i); + /* + * XXX for 6281 we should handle Mbus write burst limit + * field in the ctrl reg + */ + cr = (((ddr_size(i) - 1) & 0xffff0000) | + (ddr_attr(i) << 8) | (ddr_target(i) << 4) | 1); + + /* Set the first free USB window */ + for (j = 0; j < MV_WIN_USB_MAX; j++) { + if (win_usb_cr_read(j) & 0x1) + continue; + + win_usb_br_write(j, br); + win_usb_cr_write(j, cr); + break; + } + } +} + +/************************************************************************** + * ETH windows routines + **************************************************************************/ + +static int +win_eth_can_remap(int i) +{ + + /* ETH encode windows 0-3 have remap capability */ + if (i < 4) + return (1); + + return (0); +} + +static int +eth_bare_read(uint32_t base, int i) +{ + uint32_t v; + + v = win_eth_bare_read(base); + v &= (1 << i); + + return (v >> i); +} + +static void +eth_bare_write(uint32_t base, int i, int val) +{ + uint32_t v; + + v = win_eth_bare_read(base); + v &= ~(1 << i); + v |= (val << i); + win_eth_bare_write(base, v); +} + +static void +eth_epap_write(uint32_t base, int i, int val) +{ + uint32_t v; + + v = win_eth_epap_read(base); + v &= ~(0x3 << (i * 2)); + v |= (val << (i * 2)); + win_eth_epap_write(base, v); +} + +static void +decode_win_eth_setup(uint32_t base) +{ + uint32_t br, sz; + int i, j; + + /* Disable, clear and revoke protection for all ETH windows */ + for (i = 0; i < MV_WIN_ETH_MAX; i++) { + + eth_bare_write(base, i, 1); + eth_epap_write(base, i, 0); + win_eth_br_write(base, i, 0); + win_eth_sz_write(base, i, 0); + if (win_eth_can_remap(i)) + win_eth_har_write(base, i, 0); + } + + /* Only access to active DRAM banks is required */ + for (i = 0; i < MV_WIN_DDR_MAX; i++) + if (ddr_is_active(i)) { + + br = ddr_base(i) | (ddr_attr(i) << 8) | ddr_target(i); + sz = ((ddr_size(i) - 1) & 0xffff0000); + + /* Set the first free ETH window */ + for (j = 0; j < MV_WIN_ETH_MAX; j++) { + if (eth_bare_read(base, j) == 0) + continue; + + win_eth_br_write(base, j, br); + win_eth_sz_write(base, j, sz); + + /* XXX remapping ETH windows not supported */ + + /* Set protection RW */ + eth_epap_write(base, j, 0x3); + + /* Enable window */ + eth_bare_write(base, j, 0); + break; + } + } +} + +static int +decode_win_eth_valid(void) +{ + + return (decode_win_can_cover_ddr(MV_WIN_ETH_MAX)); +} + +/************************************************************************** + * PCIE windows routines + **************************************************************************/ + +static void +decode_win_pcie_setup(uint32_t base) +{ + uint32_t size = 0; + uint32_t cr, br; + int i, j; + + for (i = 0; i < MV_PCIE_BAR_MAX; i++) + pcie_bar_write(base, i, 0); + + for (i = 0; i < MV_WIN_PCIE_MAX; i++) { + win_pcie_cr_write(base, i, 0); + win_pcie_br_write(base, i, 0); + win_pcie_remap_write(base, i, 0); + } + + for (i = 0; i < MV_WIN_DDR_MAX; i++) { + if (ddr_is_active(i)) { + /* Map DDR to BAR 1 */ + cr = (ddr_size(i) - 1) & 0xffff0000; + size += ddr_size(i) & 0xffff0000; + cr |= (ddr_attr(i) << 8) | (ddr_target(i) << 4) | 1; + br = ddr_base(i); + + /* Use the first available PCIE window */ + for (j = 0; j < MV_WIN_PCIE_MAX; j++) { + if (win_pcie_cr_read(base, j) != 0) + continue; + + win_pcie_br_write(base, j, br); + win_pcie_cr_write(base, j, cr); + break; + } + } + } + + /* + * Upper 16 bits in BAR register is interpreted as BAR size + * (in 64 kB units) plus 64kB, so substract 0x10000 + * form value passed to register to get correct value. + */ + size -= 0x10000; + pcie_bar_write(base, 0, size | 1); +} + +static int +decode_win_pcie_valid(void) +{ + + return (decode_win_can_cover_ddr(MV_WIN_PCIE_MAX)); +} + +/************************************************************************** + * IDMA windows routines + **************************************************************************/ +#if defined(SOC_MV_ORION) || defined(SOC_MV_DISCOVERY) +static int +idma_bare_read(int i) +{ + uint32_t v; + + v = win_idma_bare_read(); + v &= (1 << i); + + return (v >> i); +} + +static void +idma_bare_write(int i, int val) +{ + uint32_t v; + + v = win_idma_bare_read(); + v &= ~(1 << i); + v |= (val << i); + win_idma_bare_write(v); +} + +/* + * Sets channel protection 'val' for window 'w' on channel 'c' + */ +static void +idma_cap_write(int c, int w, int val) +{ + uint32_t v; + + v = win_idma_cap_read(c); + v &= ~(0x3 << (w * 2)); + v |= (val << (w * 2)); + win_idma_cap_write(c, v); +} + +/* + * Set protection 'val' on all channels for window 'w' + */ +static void +idma_set_prot(int w, int val) +{ + int c; + + for (c = 0; c < MV_IDMA_CHAN_MAX; c++) + idma_cap_write(c, w, val); +} + +static int +win_idma_can_remap(int i) +{ + + /* IDMA decode windows 0-3 have remap capability */ + if (i < 4) + return (1); + + return (0); +} + +void +decode_win_idma_setup(void) +{ + uint32_t br, sz; + int i, j; + + /* + * Disable and clear all IDMA windows, revoke protection for all channels + */ + for (i = 0; i < MV_WIN_IDMA_MAX; i++) { + *** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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