Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
[firefly-linux-kernel-4.4.55.git] / drivers / serial / cpm_uart / cpm_uart_cpm2.c
index ef3bb476c4326ab5c46b98cc43530a48c3312b93..882dbc17d590bc700e5c6d8af6fa086314197924 100644 (file)
@@ -40,6 +40,7 @@
 
 #include <asm/io.h>
 #include <asm/irq.h>
+#include <asm/fs_pd.h>
 
 #include <linux/serial_core.h>
 #include <linux/kernel.h>
 
 /**************************************************************/
 
-void cpm_line_cr_cmd(int line, int cmd)
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd)
+{
+       cpm_cpm2_t __iomem *cp = cpm2_map(im_cpm);
+
+       out_be32(&cp->cp_cpcr, port->command | cmd | CPM_CR_FLG);
+       while (in_be32(&cp->cp_cpcr) & CPM_CR_FLG)
+               ;
+
+       cpm2_unmap(cp);
+}
+#else
+void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd)
 {
-       volatile cpm_cpm2_t *cp = cpmp;
        ulong val;
+       int line = port - cpm_uart_ports;
+       volatile cpm_cpm2_t *cp = cpm2_map(im_cpm);
+
 
        switch (line) {
        case UART_SMC1:
@@ -84,11 +99,14 @@ void cpm_line_cr_cmd(int line, int cmd)
        }
        cp->cp_cpcr = val;
        while (cp->cp_cpcr & CPM_CR_FLG) ;
+
+       cpm2_unmap(cp);
 }
 
 void smc1_lineif(struct uart_cpm_port *pinfo)
 {
-       volatile iop_cpm2_t *io = &cpm2_immr->im_ioport;
+       volatile iop_cpm2_t *io = cpm2_map(im_ioport);
+       volatile cpmux_t *cpmux = cpm2_map(im_cpmux);
 
        /* SMC1 is only on port D */
        io->iop_ppard |= 0x00c00000;
@@ -97,13 +115,17 @@ void smc1_lineif(struct uart_cpm_port *pinfo)
        io->iop_psord &= ~0x00c00000;
 
        /* Wire BRG1 to SMC1 */
-       cpm2_immr->im_cpmux.cmx_smr &= 0x0f;
+       cpmux->cmx_smr &= 0x0f;
        pinfo->brg = 1;
+
+       cpm2_unmap(cpmux);
+       cpm2_unmap(io);
 }
 
 void smc2_lineif(struct uart_cpm_port *pinfo)
 {
-       volatile iop_cpm2_t *io = &cpm2_immr->im_ioport;
+       volatile iop_cpm2_t *io = cpm2_map(im_ioport);
+       volatile cpmux_t *cpmux = cpm2_map(im_cpmux);
 
        /* SMC2 is only on port A */
        io->iop_ppara |= 0x00c00000;
@@ -112,13 +134,17 @@ void smc2_lineif(struct uart_cpm_port *pinfo)
        io->iop_psora &= ~0x00c00000;
 
        /* Wire BRG2 to SMC2 */
-       cpm2_immr->im_cpmux.cmx_smr &= 0xf0;
+       cpmux->cmx_smr &= 0xf0;
        pinfo->brg = 2;
+
+       cpm2_unmap(cpmux);
+       cpm2_unmap(io);
 }
 
 void scc1_lineif(struct uart_cpm_port *pinfo)
 {
-       volatile iop_cpm2_t *io = &cpm2_immr->im_ioport;
+       volatile iop_cpm2_t *io = cpm2_map(im_ioport);
+       volatile cpmux_t *cpmux = cpm2_map(im_cpmux);
 
        /* Use Port D for SCC1 instead of other functions.  */
        io->iop_ppard |= 0x00000003;
@@ -128,9 +154,12 @@ void scc1_lineif(struct uart_cpm_port *pinfo)
        io->iop_pdird |= 0x00000002;    /* Tx */
 
        /* Wire BRG1 to SCC1 */
-       cpm2_immr->im_cpmux.cmx_scr &= 0x00ffffff;
-       cpm2_immr->im_cpmux.cmx_scr |= 0x00000000;
+       cpmux->cmx_scr &= 0x00ffffff;
+       cpmux->cmx_scr |= 0x00000000;
        pinfo->brg = 1;
+
+       cpm2_unmap(cpmux);
+       cpm2_unmap(io);
 }
 
 void scc2_lineif(struct uart_cpm_port *pinfo)
@@ -143,44 +172,59 @@ void scc2_lineif(struct uart_cpm_port *pinfo)
         * be supported in a sane fashion.
         */
 #ifndef CONFIG_STX_GP3
-       volatile iop_cpm2_t *io = &cpm2_immr->im_ioport;
+       volatile iop_cpm2_t *io = cpm2_map(im_ioport);
+       volatile cpmux_t *cpmux = cpm2_map(im_cpmux);
+
        io->iop_pparb |= 0x008b0000;
        io->iop_pdirb |= 0x00880000;
        io->iop_psorb |= 0x00880000;
        io->iop_pdirb &= ~0x00030000;
        io->iop_psorb &= ~0x00030000;
 #endif
-       cpm2_immr->im_cpmux.cmx_scr &= 0xff00ffff;
-       cpm2_immr->im_cpmux.cmx_scr |= 0x00090000;
+       cpmux->cmx_scr &= 0xff00ffff;
+       cpmux->cmx_scr |= 0x00090000;
        pinfo->brg = 2;
+
+       cpm2_unmap(cpmux);
+       cpm2_unmap(io);
 }
 
 void scc3_lineif(struct uart_cpm_port *pinfo)
 {
-       volatile iop_cpm2_t *io = &cpm2_immr->im_ioport;
+       volatile iop_cpm2_t *io = cpm2_map(im_ioport);
+       volatile cpmux_t *cpmux = cpm2_map(im_cpmux);
+
        io->iop_pparb |= 0x008b0000;
        io->iop_pdirb |= 0x00880000;
        io->iop_psorb |= 0x00880000;
        io->iop_pdirb &= ~0x00030000;
        io->iop_psorb &= ~0x00030000;
-       cpm2_immr->im_cpmux.cmx_scr &= 0xffff00ff;
-       cpm2_immr->im_cpmux.cmx_scr |= 0x00001200;
+       cpmux->cmx_scr &= 0xffff00ff;
+       cpmux->cmx_scr |= 0x00001200;
        pinfo->brg = 3;
+
+       cpm2_unmap(cpmux);
+       cpm2_unmap(io);
 }
 
 void scc4_lineif(struct uart_cpm_port *pinfo)
 {
-       volatile iop_cpm2_t *io = &cpm2_immr->im_ioport;
+       volatile iop_cpm2_t *io = cpm2_map(im_ioport);
+       volatile cpmux_t *cpmux = cpm2_map(im_cpmux);
 
        io->iop_ppard |= 0x00000600;
        io->iop_psord &= ~0x00000600;   /* Tx/Rx */
        io->iop_pdird &= ~0x00000200;   /* Rx */
        io->iop_pdird |= 0x00000400;    /* Tx */
 
-       cpm2_immr->im_cpmux.cmx_scr &= 0xffffff00;
-       cpm2_immr->im_cpmux.cmx_scr |= 0x0000001b;
+       cpmux->cmx_scr &= 0xffffff00;
+       cpmux->cmx_scr |= 0x0000001b;
        pinfo->brg = 4;
+
+       cpm2_unmap(cpmux);
+       cpm2_unmap(io);
 }
+#endif
 
 /*
  * Allocate DP-Ram and memory buffers. We need to allocate a transmit and 
@@ -191,8 +235,8 @@ void scc4_lineif(struct uart_cpm_port *pinfo)
 int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
 {
        int dpmemsz, memsz;
-       u8 *dp_mem;
-       uint dp_offset;
+       u8 __iomem *dp_mem;
+       unsigned long dp_offset;
        u8 *mem_addr;
        dma_addr_t dma_addr = 0;
 
@@ -200,7 +244,7 @@ int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
 
        dpmemsz = sizeof(cbd_t) * (pinfo->rx_nrfifos + pinfo->tx_nrfifos);
        dp_offset = cpm_dpalloc(dpmemsz, 8);
-       if (IS_DPERR(dp_offset)) {
+       if (IS_ERR_VALUE(dp_offset)) {
                printk(KERN_ERR
                       "cpm_uart_cpm.c: could not allocate buffer descriptors\n");
                return -ENOMEM;
@@ -234,7 +278,7 @@ int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
        pinfo->tx_buf = pinfo->rx_buf + L1_CACHE_ALIGN(pinfo->rx_nrfifos
                                                       * pinfo->rx_fifosize);
 
-       pinfo->rx_bd_base = (volatile cbd_t *)dp_mem;
+       pinfo->rx_bd_base = (cbd_t __iomem *)dp_mem;
        pinfo->tx_bd_base = pinfo->rx_bd_base + pinfo->rx_nrfifos;
 
        return 0;
@@ -245,99 +289,116 @@ void cpm_uart_freebuf(struct uart_cpm_port *pinfo)
        dma_free_coherent(NULL, L1_CACHE_ALIGN(pinfo->rx_nrfifos *
                                               pinfo->rx_fifosize) +
                          L1_CACHE_ALIGN(pinfo->tx_nrfifos *
-                                        pinfo->tx_fifosize), pinfo->mem_addr,
+                                        pinfo->tx_fifosize), (void __force *)pinfo->mem_addr,
                          pinfo->dma_addr);
 
        cpm_dpfree(pinfo->dp_addr);
 }
 
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 /* Setup any dynamic params in the uart desc */
 int cpm_uart_init_portdesc(void)
 {
+#if defined(CONFIG_SERIAL_CPM_SMC1) || defined(CONFIG_SERIAL_CPM_SMC2)
+       u16 *addr;
+#endif
        pr_debug("CPM uart[-]:init portdesc\n");
 
        cpm_uart_nr = 0;
 #ifdef CONFIG_SERIAL_CPM_SMC1
-       cpm_uart_ports[UART_SMC1].smcp = (smc_t *) & cpm2_immr->im_smc[0];
-       cpm_uart_ports[UART_SMC1].smcup =
-           (smc_uart_t *) & cpm2_immr->im_dprambase[PROFF_SMC1];
-       *(u16 *)(&cpm2_immr->im_dprambase[PROFF_SMC1_BASE]) = PROFF_SMC1;
+       cpm_uart_ports[UART_SMC1].smcp = (smc_t *) cpm2_map(im_smc[0]);
        cpm_uart_ports[UART_SMC1].port.mapbase =
-           (unsigned long)&cpm2_immr->im_smc[0];
+           (unsigned long)cpm_uart_ports[UART_SMC1].smcp;
+
+       cpm_uart_ports[UART_SMC1].smcup =
+           (smc_uart_t *) cpm2_map_size(im_dprambase[PROFF_SMC1], PROFF_SMC_SIZE);
+       addr = (u16 *)cpm2_map_size(im_dprambase[PROFF_SMC1_BASE], 2);
+       *addr = PROFF_SMC1;
+       cpm2_unmap(addr);
+
        cpm_uart_ports[UART_SMC1].smcp->smc_smcm |= (SMCM_RX | SMCM_TX);
        cpm_uart_ports[UART_SMC1].smcp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
-       cpm_uart_ports[UART_SMC1].port.uartclk = (((bd_t *) __res)->bi_intfreq);
+       cpm_uart_ports[UART_SMC1].port.uartclk = uart_clock();
        cpm_uart_port_map[cpm_uart_nr++] = UART_SMC1;
 #endif
 
 #ifdef CONFIG_SERIAL_CPM_SMC2
-       cpm_uart_ports[UART_SMC2].smcp = (smc_t *) & cpm2_immr->im_smc[1];
-       cpm_uart_ports[UART_SMC2].smcup =
-           (smc_uart_t *) & cpm2_immr->im_dprambase[PROFF_SMC2];
-       *(u16 *)(&cpm2_immr->im_dprambase[PROFF_SMC2_BASE]) = PROFF_SMC2;
+       cpm_uart_ports[UART_SMC2].smcp = (smc_t *) cpm2_map(im_smc[1]);
        cpm_uart_ports[UART_SMC2].port.mapbase =
-           (unsigned long)&cpm2_immr->im_smc[1];
+           (unsigned long)cpm_uart_ports[UART_SMC2].smcp;
+
+       cpm_uart_ports[UART_SMC2].smcup =
+           (smc_uart_t *) cpm2_map_size(im_dprambase[PROFF_SMC2], PROFF_SMC_SIZE);
+       addr = (u16 *)cpm2_map_size(im_dprambase[PROFF_SMC2_BASE], 2);
+       *addr = PROFF_SMC2;
+       cpm2_unmap(addr);
+
        cpm_uart_ports[UART_SMC2].smcp->smc_smcm |= (SMCM_RX | SMCM_TX);
        cpm_uart_ports[UART_SMC2].smcp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
-       cpm_uart_ports[UART_SMC2].port.uartclk = (((bd_t *) __res)->bi_intfreq);
+       cpm_uart_ports[UART_SMC2].port.uartclk = uart_clock();
        cpm_uart_port_map[cpm_uart_nr++] = UART_SMC2;
 #endif
 
 #ifdef CONFIG_SERIAL_CPM_SCC1
-       cpm_uart_ports[UART_SCC1].sccp = (scc_t *) & cpm2_immr->im_scc[0];
-       cpm_uart_ports[UART_SCC1].sccup =
-           (scc_uart_t *) & cpm2_immr->im_dprambase[PROFF_SCC1];
+       cpm_uart_ports[UART_SCC1].sccp = (scc_t *) cpm2_map(im_scc[0]);
        cpm_uart_ports[UART_SCC1].port.mapbase =
-           (unsigned long)&cpm2_immr->im_scc[0];
+           (unsigned long)cpm_uart_ports[UART_SCC1].sccp;
+       cpm_uart_ports[UART_SCC1].sccup =
+           (scc_uart_t *) cpm2_map_size(im_dprambase[PROFF_SCC1], PROFF_SCC_SIZE);
+
        cpm_uart_ports[UART_SCC1].sccp->scc_sccm &=
            ~(UART_SCCM_TX | UART_SCCM_RX);
        cpm_uart_ports[UART_SCC1].sccp->scc_gsmrl &=
            ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
-       cpm_uart_ports[UART_SCC1].port.uartclk = (((bd_t *) __res)->bi_intfreq);
+       cpm_uart_ports[UART_SCC1].port.uartclk = uart_clock();
        cpm_uart_port_map[cpm_uart_nr++] = UART_SCC1;
 #endif
 
 #ifdef CONFIG_SERIAL_CPM_SCC2
-       cpm_uart_ports[UART_SCC2].sccp = (scc_t *) & cpm2_immr->im_scc[1];
-       cpm_uart_ports[UART_SCC2].sccup =
-           (scc_uart_t *) & cpm2_immr->im_dprambase[PROFF_SCC2];
+       cpm_uart_ports[UART_SCC2].sccp = (scc_t *) cpm2_map(im_scc[1]);
        cpm_uart_ports[UART_SCC2].port.mapbase =
-           (unsigned long)&cpm2_immr->im_scc[1];
+           (unsigned long)cpm_uart_ports[UART_SCC2].sccp;
+       cpm_uart_ports[UART_SCC2].sccup =
+           (scc_uart_t *) cpm2_map_size(im_dprambase[PROFF_SCC2], PROFF_SCC_SIZE);
+
        cpm_uart_ports[UART_SCC2].sccp->scc_sccm &=
            ~(UART_SCCM_TX | UART_SCCM_RX);
        cpm_uart_ports[UART_SCC2].sccp->scc_gsmrl &=
            ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
-       cpm_uart_ports[UART_SCC2].port.uartclk = (((bd_t *) __res)->bi_intfreq);
+       cpm_uart_ports[UART_SCC2].port.uartclk = uart_clock();
        cpm_uart_port_map[cpm_uart_nr++] = UART_SCC2;
 #endif
 
 #ifdef CONFIG_SERIAL_CPM_SCC3
-       cpm_uart_ports[UART_SCC3].sccp = (scc_t *) & cpm2_immr->im_scc[2];
-       cpm_uart_ports[UART_SCC3].sccup =
-           (scc_uart_t *) & cpm2_immr->im_dprambase[PROFF_SCC3];
+       cpm_uart_ports[UART_SCC3].sccp = (scc_t *) cpm2_map(im_scc[2]);
        cpm_uart_ports[UART_SCC3].port.mapbase =
-           (unsigned long)&cpm2_immr->im_scc[2];
+           (unsigned long)cpm_uart_ports[UART_SCC3].sccp;
+       cpm_uart_ports[UART_SCC3].sccup =
+           (scc_uart_t *) cpm2_map_size(im_dprambase[PROFF_SCC3], PROFF_SCC_SIZE);
+
        cpm_uart_ports[UART_SCC3].sccp->scc_sccm &=
            ~(UART_SCCM_TX | UART_SCCM_RX);
        cpm_uart_ports[UART_SCC3].sccp->scc_gsmrl &=
            ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
-       cpm_uart_ports[UART_SCC3].port.uartclk = (((bd_t *) __res)->bi_intfreq);
+       cpm_uart_ports[UART_SCC3].port.uartclk = uart_clock();
        cpm_uart_port_map[cpm_uart_nr++] = UART_SCC3;
 #endif
 
 #ifdef CONFIG_SERIAL_CPM_SCC4
-       cpm_uart_ports[UART_SCC4].sccp = (scc_t *) & cpm2_immr->im_scc[3];
-       cpm_uart_ports[UART_SCC4].sccup =
-           (scc_uart_t *) & cpm2_immr->im_dprambase[PROFF_SCC4];
+       cpm_uart_ports[UART_SCC4].sccp = (scc_t *) cpm2_map(im_scc[3]);
        cpm_uart_ports[UART_SCC4].port.mapbase =
-           (unsigned long)&cpm2_immr->im_scc[3];
+           (unsigned long)cpm_uart_ports[UART_SCC4].sccp;
+       cpm_uart_ports[UART_SCC4].sccup =
+           (scc_uart_t *) cpm2_map_size(im_dprambase[PROFF_SCC4], PROFF_SCC_SIZE);
+
        cpm_uart_ports[UART_SCC4].sccp->scc_sccm &=
            ~(UART_SCCM_TX | UART_SCCM_RX);
        cpm_uart_ports[UART_SCC4].sccp->scc_gsmrl &=
            ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
-       cpm_uart_ports[UART_SCC4].port.uartclk = (((bd_t *) __res)->bi_intfreq);
+       cpm_uart_ports[UART_SCC4].port.uartclk = uart_clock();
        cpm_uart_port_map[cpm_uart_nr++] = UART_SCC4;
 #endif
 
        return 0;
 }
+#endif