diff options
author | Vitaly Bordug <vbordug@ru.mvista.com> | 2006-09-21 20:38:05 +0200 |
---|---|---|
committer | Vitaly Bordug <vbordug@ru.mvista.com> | 2006-09-21 20:38:05 +0200 |
commit | d3465c921f79cfef0a4a8ceeeef9a3721bbbb57d (patch) | |
tree | 73d602a02efd3f358990dcfa9231131e69318d3b /arch | |
parent | POWERPC: Get rid of remapping the whole immr (diff) | |
download | linux-d3465c921f79cfef0a4a8ceeeef9a3721bbbb57d.tar.xz linux-d3465c921f79cfef0a4a8ceeeef9a3721bbbb57d.zip |
POWERPC: overhaul with cpm2_map mechanism
Incorporating the new way of cpm2 immr access, introduced in the previous
patch, into CPM2 peripheral devices (fs_enet and cpm_uart). Both ppc and
powerpc approved working( real actions taken in powerpc only, ppc just
has a wrapper to keep init stuff consistent).
Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/powerpc/platforms/85xx/mpc85xx_ads.c | 109 | ||||
-rw-r--r-- | arch/powerpc/sysdev/cpm2_common.c | 90 | ||||
-rw-r--r-- | arch/powerpc/sysdev/fsl_soc.c | 7 | ||||
-rw-r--r-- | arch/ppc/platforms/mpc8272ads_setup.c | 8 | ||||
-rw-r--r-- | arch/ppc/platforms/mpc866ads_setup.c | 8 | ||||
-rw-r--r-- | arch/ppc/platforms/mpc885ads_setup.c | 10 |
6 files changed, 170 insertions, 62 deletions
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ads.c b/arch/powerpc/platforms/85xx/mpc85xx_ads.c index 7ebfe74bde40..28070e7ae507 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_ads.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_ads.c @@ -33,6 +33,7 @@ #include "mpc85xx.h" #ifdef CONFIG_CPM2 +#include <linux/fs_enet_pd.h> #include <asm/cpm2.h> #include <sysdev/cpm2_pic.h> #include <asm/fs_pd.h> @@ -146,70 +147,81 @@ void __init mpc85xx_ads_pic_init(void) * Setup the architecture */ #ifdef CONFIG_CPM2 -static void init_fcc_ioports(void) +void init_fcc_ioports(struct fs_platform_info *fpi) { - struct immap *immap; - struct io_port *io; + struct io_port *io = cpm2_map(im_ioport); + int fcc_no = fs_get_fcc_index(fpi->fs_no); + int target; u32 tempval; - immap = cpm2_immr; - - io = &immap->im_ioport; - /* FCC2/3 are on the ports B/C. */ - tempval = in_be32(&io->iop_pdirb); - tempval &= ~PB2_DIRB0; - tempval |= PB2_DIRB1; - out_be32(&io->iop_pdirb, tempval); - - tempval = in_be32(&io->iop_psorb); - tempval &= ~PB2_PSORB0; - tempval |= PB2_PSORB1; - out_be32(&io->iop_psorb, tempval); - - tempval = in_be32(&io->iop_pparb); - tempval |= (PB2_DIRB0 | PB2_DIRB1); - out_be32(&io->iop_pparb, tempval); - - tempval = in_be32(&io->iop_pdirb); - tempval &= ~PB3_DIRB0; - tempval |= PB3_DIRB1; - out_be32(&io->iop_pdirb, tempval); - - tempval = in_be32(&io->iop_psorb); - tempval &= ~PB3_PSORB0; - tempval |= PB3_PSORB1; - out_be32(&io->iop_psorb, tempval); - - tempval = in_be32(&io->iop_pparb); - tempval |= (PB3_DIRB0 | PB3_DIRB1); - out_be32(&io->iop_pparb, tempval); - - tempval = in_be32(&io->iop_pdirc); - tempval |= PC3_DIRC1; - out_be32(&io->iop_pdirc, tempval); - - tempval = in_be32(&io->iop_pparc); - tempval |= PC3_DIRC1; - out_be32(&io->iop_pparc, tempval); + switch(fcc_no) { + case 1: + tempval = in_be32(&io->iop_pdirb); + tempval &= ~PB2_DIRB0; + tempval |= PB2_DIRB1; + out_be32(&io->iop_pdirb, tempval); + + tempval = in_be32(&io->iop_psorb); + tempval &= ~PB2_PSORB0; + tempval |= PB2_PSORB1; + out_be32(&io->iop_psorb, tempval); + + tempval = in_be32(&io->iop_pparb); + tempval |= (PB2_DIRB0 | PB2_DIRB1); + out_be32(&io->iop_pparb, tempval); + + target = CPM_CLK_FCC2; + break; + case 2: + tempval = in_be32(&io->iop_pdirb); + tempval &= ~PB3_DIRB0; + tempval |= PB3_DIRB1; + out_be32(&io->iop_pdirb, tempval); + + tempval = in_be32(&io->iop_psorb); + tempval &= ~PB3_PSORB0; + tempval |= PB3_PSORB1; + out_be32(&io->iop_psorb, tempval); + + tempval = in_be32(&io->iop_pparb); + tempval |= (PB3_DIRB0 | PB3_DIRB1); + out_be32(&io->iop_pparb, tempval); + + tempval = in_be32(&io->iop_pdirc); + tempval |= PC3_DIRC1; + out_be32(&io->iop_pdirc, tempval); + + tempval = in_be32(&io->iop_pparc); + tempval |= PC3_DIRC1; + out_be32(&io->iop_pparc, tempval); + + target = CPM_CLK_FCC3; + break; + default: + printk(KERN_ERR "init_fcc_ioports: invalid FCC number\n"); + return; + } /* Port C has clocks...... */ tempval = in_be32(&io->iop_psorc); - tempval &= ~(CLK_TRX); + tempval &= ~(PC_CLK(fpi->clk_rx - 8) | PC_CLK(fpi->clk_tx - 8)); out_be32(&io->iop_psorc, tempval); tempval = in_be32(&io->iop_pdirc); - tempval &= ~(CLK_TRX); + tempval &= ~(PC_CLK(fpi->clk_rx - 8) | PC_CLK(fpi->clk_tx - 8)); out_be32(&io->iop_pdirc, tempval); tempval = in_be32(&io->iop_pparc); - tempval |= (CLK_TRX); + tempval |= (PC_CLK(fpi->clk_rx - 8) | PC_CLK(fpi->clk_tx - 8)); out_be32(&io->iop_pparc, tempval); + cpm2_unmap(io); + /* Configure Serial Interface clock routing. - * First, clear all FCC bits to zero, + * First, clear FCC bits to zero, * then set the ones we want. */ - immap->im_cpmux.cmx_fcr &= ~(CPMUX_CLK_MASK); - immap->im_cpmux.cmx_fcr |= CPMUX_CLK_ROUTE; + cpm2_clk_setup(target, fpi->clk_rx, CPM_CLK_RX); + cpm2_clk_setup(target, fpi->clk_tx, CPM_CLK_TX); } #endif @@ -237,7 +249,6 @@ static void __init mpc85xx_ads_setup_arch(void) #ifdef CONFIG_CPM2 cpm2_reset(); - init_fcc_ioports(); #endif #ifdef CONFIG_PCI diff --git a/arch/powerpc/sysdev/cpm2_common.c b/arch/powerpc/sysdev/cpm2_common.c index 73376f9c1560..ec265995d5d8 100644 --- a/arch/powerpc/sysdev/cpm2_common.c +++ b/arch/powerpc/sysdev/cpm2_common.c @@ -130,6 +130,96 @@ cpm2_fastbrg(uint brg, uint rate, int div16) cpm2_unmap(bp); } +int cpm2_clk_setup(enum cpm_clk_target target, int clock, int mode) +{ + int ret = 0; + int shift; + int i, bits = 0; + cpmux_t *im_cpmux; + u32 *reg; + u32 mask = 7; + u8 clk_map [24][3] = { + {CPM_CLK_FCC1, CPM_BRG5, 0}, + {CPM_CLK_FCC1, CPM_BRG6, 1}, + {CPM_CLK_FCC1, CPM_BRG7, 2}, + {CPM_CLK_FCC1, CPM_BRG8, 3}, + {CPM_CLK_FCC1, CPM_CLK9, 4}, + {CPM_CLK_FCC1, CPM_CLK10, 5}, + {CPM_CLK_FCC1, CPM_CLK11, 6}, + {CPM_CLK_FCC1, CPM_CLK12, 7}, + {CPM_CLK_FCC2, CPM_BRG5, 0}, + {CPM_CLK_FCC2, CPM_BRG6, 1}, + {CPM_CLK_FCC2, CPM_BRG7, 2}, + {CPM_CLK_FCC2, CPM_BRG8, 3}, + {CPM_CLK_FCC2, CPM_CLK13, 4}, + {CPM_CLK_FCC2, CPM_CLK14, 5}, + {CPM_CLK_FCC2, CPM_CLK15, 6}, + {CPM_CLK_FCC2, CPM_CLK16, 7}, + {CPM_CLK_FCC3, CPM_BRG5, 0}, + {CPM_CLK_FCC3, CPM_BRG6, 1}, + {CPM_CLK_FCC3, CPM_BRG7, 2}, + {CPM_CLK_FCC3, CPM_BRG8, 3}, + {CPM_CLK_FCC3, CPM_CLK13, 4}, + {CPM_CLK_FCC3, CPM_CLK14, 5}, + {CPM_CLK_FCC3, CPM_CLK15, 6}, + {CPM_CLK_FCC3, CPM_CLK16, 7} + }; + + im_cpmux = cpm2_map(im_cpmux); + + switch (target) { + case CPM_CLK_SCC1: + reg = &im_cpmux->cmx_scr; + shift = 24; + case CPM_CLK_SCC2: + reg = &im_cpmux->cmx_scr; + shift = 16; + break; + case CPM_CLK_SCC3: + reg = &im_cpmux->cmx_scr; + shift = 8; + break; + case CPM_CLK_SCC4: + reg = &im_cpmux->cmx_scr; + shift = 0; + break; + case CPM_CLK_FCC1: + reg = &im_cpmux->cmx_fcr; + shift = 24; + break; + case CPM_CLK_FCC2: + reg = &im_cpmux->cmx_fcr; + shift = 16; + break; + case CPM_CLK_FCC3: + reg = &im_cpmux->cmx_fcr; + shift = 8; + break; + default: + printk(KERN_ERR "cpm2_clock_setup: invalid clock target\n"); + return -EINVAL; + } + + if (mode == CPM_CLK_RX) + shift +=3; + + for (i=0; i<24; i++) { + if (clk_map[i][0] == target && clk_map[i][1] == clock) { + bits = clk_map[i][2]; + break; + } + } + if (i == sizeof(clk_map)/3) + ret = -EINVAL; + + bits <<= shift; + mask <<= shift; + out_be32(reg, (in_be32(reg) & ~mask) | bits); + + cpm2_unmap(im_cpmux); + return ret; +} + /* * dpalloc / dpfree bits. */ diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c index 0b8a03cc3042..4e72bb983636 100644 --- a/arch/powerpc/sysdev/fsl_soc.c +++ b/arch/powerpc/sysdev/fsl_soc.c @@ -36,6 +36,7 @@ #include <mm/mmu_decl.h> #include <asm/cpm2.h> +extern void init_fcc_ioports(struct fs_platform_info*); static phys_addr_t immrbase = -1; phys_addr_t get_immrbase(void) @@ -630,6 +631,9 @@ static int __init fs_enet_of_init(void) goto unreg; } + fs_enet_data.clk_rx = *((u32 *) get_property(np, "rx-clock", NULL)); + fs_enet_data.clk_tx = *((u32 *) get_property(np, "tx-clock", NULL)); + if (strstr(model, "FCC")) { int fcc_index = fs_get_fcc_index(*id); @@ -646,6 +650,7 @@ static int __init fs_enet_of_init(void) snprintf((char*)&bus_id[(*id)], BUS_ID_SIZE, "%x:%02x", (u32)res.start, fs_enet_data.phy_addr); fs_enet_data.bus_id = (char*)&bus_id[(*id)]; + fs_enet_data.init_ioports = init_fcc_ioports; } of_node_put(phy); @@ -717,6 +722,8 @@ static int __init cpm_uart_of_init(void) cpm_uart_data.tx_buf_size = 32; cpm_uart_data.rx_num_fifo = 4; cpm_uart_data.rx_buf_size = 32; + cpm_uart_data.clk_rx = *((u32 *) get_property(np, "rx-clock", NULL)); + cpm_uart_data.clk_tx = *((u32 *) get_property(np, "tx-clock", NULL)); ret = platform_device_add_data(cpm_uart_dev, &cpm_uart_data, diff --git a/arch/ppc/platforms/mpc8272ads_setup.c b/arch/ppc/platforms/mpc8272ads_setup.c index 2a35fe2b9b96..d5d36c372c8e 100644 --- a/arch/ppc/platforms/mpc8272ads_setup.c +++ b/arch/ppc/platforms/mpc8272ads_setup.c @@ -103,7 +103,7 @@ static struct fs_platform_info mpc82xx_enet_pdata[] = { }, }; -static void init_fcc1_ioports(void) +static void init_fcc1_ioports(struct fs_platform_info*) { struct io_port *io; u32 tempval; @@ -144,7 +144,7 @@ static void init_fcc1_ioports(void) iounmap(immap); } -static void init_fcc2_ioports(void) +static void init_fcc2_ioports(struct fs_platform_info*) { cpm2_map_t* immap = ioremap(CPM_MAP_ADDR, sizeof(cpm2_map_t)); u32 *bcsr = ioremap(BCSR_ADDR+12, sizeof(u32)); @@ -229,7 +229,7 @@ static void mpc8272ads_fixup_uart_pdata(struct platform_device *pdev, } } -static void init_scc1_uart_ioports(void) +static void init_scc1_uart_ioports(struct fs_uart_platform_info*) { cpm2_map_t* immap = ioremap(CPM_MAP_ADDR, sizeof(cpm2_map_t)); @@ -246,7 +246,7 @@ static void init_scc1_uart_ioports(void) iounmap(immap); } -static void init_scc4_uart_ioports(void) +static void init_scc4_uart_ioports(struct fs_uart_platform_info*) { cpm2_map_t* immap = ioremap(CPM_MAP_ADDR, sizeof(cpm2_map_t)); diff --git a/arch/ppc/platforms/mpc866ads_setup.c b/arch/ppc/platforms/mpc866ads_setup.c index e12cece4c9fd..5f130dca3770 100644 --- a/arch/ppc/platforms/mpc866ads_setup.c +++ b/arch/ppc/platforms/mpc866ads_setup.c @@ -137,7 +137,7 @@ void __init board_init(void) iounmap(bcsr_io); } -static void setup_fec1_ioports(void) +static void setup_fec1_ioports(struct fs_platform_info*) { immap_t *immap = (immap_t *) IMAP_ADDR; @@ -145,7 +145,7 @@ static void setup_fec1_ioports(void) setbits16(&immap->im_ioport.iop_pddir, 0x1fff); } -static void setup_scc1_ioports(void) +static void setup_scc1_ioports(struct fs_platform_info*) { immap_t *immap = (immap_t *) IMAP_ADDR; unsigned *bcsr_io; @@ -194,7 +194,7 @@ static void setup_scc1_ioports(void) } -static void setup_smc1_ioports(void) +static void setup_smc1_ioports(struct fs_uart_platform_info*) { immap_t *immap = (immap_t *) IMAP_ADDR; unsigned *bcsr_io; @@ -216,7 +216,7 @@ static void setup_smc1_ioports(void) } -static void setup_smc2_ioports(void) +static void setup_smc2_ioports(struct fs_uart_platform_info*) { immap_t *immap = (immap_t *) IMAP_ADDR; unsigned *bcsr_io; diff --git a/arch/ppc/platforms/mpc885ads_setup.c b/arch/ppc/platforms/mpc885ads_setup.c index 5dfa4e6c2af0..bf388ed04d46 100644 --- a/arch/ppc/platforms/mpc885ads_setup.c +++ b/arch/ppc/platforms/mpc885ads_setup.c @@ -161,7 +161,7 @@ void __init board_init(void) #endif } -static void setup_fec1_ioports(void) +static void setup_fec1_ioports(struct fs_platform_info*) { immap_t *immap = (immap_t *) IMAP_ADDR; @@ -181,7 +181,7 @@ static void setup_fec1_ioports(void) clrbits32(&immap->im_cpm.cp_cptr, 0x00000100); } -static void setup_fec2_ioports(void) +static void setup_fec2_ioports(struct fs_platform_info*) { immap_t *immap = (immap_t *) IMAP_ADDR; @@ -193,7 +193,7 @@ static void setup_fec2_ioports(void) clrbits32(&immap->im_cpm.cp_cptr, 0x00000080); } -static void setup_scc3_ioports(void) +static void setup_scc3_ioports(struct fs_platform_info*) { immap_t *immap = (immap_t *) IMAP_ADDR; unsigned *bcsr_io; @@ -315,7 +315,7 @@ static void __init mpc885ads_fixup_scc_enet_pdata(struct platform_device *pdev, mpc885ads_fixup_enet_pdata(pdev, fsid_scc1 + pdev->id - 1); } -static void setup_smc1_ioports(void) +static void setup_smc1_ioports(struct fs_uart_platform_info*) { immap_t *immap = (immap_t *) IMAP_ADDR; unsigned *bcsr_io; @@ -335,7 +335,7 @@ static void setup_smc1_ioports(void) clrbits16(&immap->im_cpm.cp_pbodr, iobits); } -static void setup_smc2_ioports(void) +static void setup_smc2_ioports(struct fs_uart_platform_info*) { immap_t *immap = (immap_t *) IMAP_ADDR; unsigned *bcsr_io; |