diff options
author | Vitaly Bordug <vbordug@ru.mvista.com> | 2006-04-25 20:26:43 +0400 |
---|---|---|
committer | Paul Mackerras <paulus@samba.org> | 2006-04-28 21:11:30 +1000 |
commit | 4427d6bf966379304f77b7cc8c92421e6bb95483 (patch) | |
tree | 9e881bd2123850d86d792c66bb94991ac11ecccd | |
parent | e27987cddd8db3a72a0f4734b5d94d06c7677323 (diff) | |
download | kernel_samsung_smdk4412-4427d6bf966379304f77b7cc8c92421e6bb95483.zip kernel_samsung_smdk4412-4427d6bf966379304f77b7cc8c92421e6bb95483.tar.gz kernel_samsung_smdk4412-4427d6bf966379304f77b7cc8c92421e6bb95483.tar.bz2 |
[PATCH] ppc32: Update board-specific code of the CPM UART users
This has the relevant updates/additions to the BSP code so that proper
platform_info struct well be passed to the CPM UART drivers. The changes
covered mpc866ads, mpc885ads and mpc8272ads.
Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
-rw-r--r-- | arch/ppc/platforms/mpc8272ads_setup.c | 114 | ||||
-rw-r--r-- | arch/ppc/platforms/mpc866ads_setup.c | 140 | ||||
-rw-r--r-- | arch/ppc/platforms/mpc885ads_setup.c | 131 | ||||
-rw-r--r-- | arch/ppc/platforms/pq2ads.c | 31 |
4 files changed, 415 insertions, 1 deletions
diff --git a/arch/ppc/platforms/mpc8272ads_setup.c b/arch/ppc/platforms/mpc8272ads_setup.c index bc9b94f..e62b757 100644 --- a/arch/ppc/platforms/mpc8272ads_setup.c +++ b/arch/ppc/platforms/mpc8272ads_setup.c @@ -26,11 +26,35 @@ #include <asm/irq.h> #include <asm/ppc_sys.h> #include <asm/ppcboot.h> +#include <linux/fs_uart_pd.h> #include "pq2ads_pd.h" static void init_fcc1_ioports(void); static void init_fcc2_ioports(void); +static void init_scc1_uart_ioports(void); +static void init_scc4_uart_ioports(void); + +static struct fs_uart_platform_info mpc8272_uart_pdata[] = { + [fsid_scc1_uart] = { + .init_ioports = init_scc1_uart_ioports, + .fs_no = fsid_scc1_uart, + .brg = 1, + .tx_num_fifo = 4, + .tx_buf_size = 32, + .rx_num_fifo = 4, + .rx_buf_size = 32, + }, + [fsid_scc4_uart] = { + .init_ioports = init_scc4_uart_ioports, + .fs_no = fsid_scc4_uart, + .brg = 4, + .tx_num_fifo = 4, + .tx_buf_size = 32, + .rx_num_fifo = 4, + .rx_buf_size = 32, + }, +}; static struct fs_mii_bus_info mii_bus_info = { .method = fsmii_bitbang, @@ -201,6 +225,55 @@ static void __init mpc8272ads_fixup_enet_pdata(struct platform_device *pdev, } } +static void mpc8272ads_fixup_uart_pdata(struct platform_device *pdev, + int idx) +{ + bd_t *bd = (bd_t *) __res; + struct fs_uart_platform_info *pinfo; + int num = ARRAY_SIZE(mpc8272_uart_pdata); + int id = fs_uart_id_scc2fsid(idx); + + /* no need to alter anything if console */ + if ((id <= num) && (!pdev->dev.platform_data)) { + pinfo = &mpc8272_uart_pdata[id]; + pinfo->uart_clk = bd->bi_intfreq; + pdev->dev.platform_data = pinfo; + } +} + +static void init_scc1_uart_ioports(void) +{ + cpm2_map_t* immap = ioremap(CPM_MAP_ADDR, sizeof(cpm2_map_t)); + + /* SCC1 is only on port D */ + setbits32(&immap->im_ioport.iop_ppard,0x00000003); + clrbits32(&immap->im_ioport.iop_psord,0x00000001); + setbits32(&immap->im_ioport.iop_psord,0x00000002); + clrbits32(&immap->im_ioport.iop_pdird,0x00000001); + setbits32(&immap->im_ioport.iop_pdird,0x00000002); + + /* Wire BRG1 to SCC1 */ + clrbits32(&immap->im_cpmux.cmx_scr,0x00ffffff); + + iounmap(immap); +} + +static void init_scc4_uart_ioports(void) +{ + cpm2_map_t* immap = ioremap(CPM_MAP_ADDR, sizeof(cpm2_map_t)); + + setbits32(&immap->im_ioport.iop_ppard,0x00000600); + clrbits32(&immap->im_ioport.iop_psord,0x00000600); + clrbits32(&immap->im_ioport.iop_pdird,0x00000200); + setbits32(&immap->im_ioport.iop_pdird,0x00000400); + + /* Wire BRG4 to SCC4 */ + clrbits32(&immap->im_cpmux.cmx_scr,0x000000ff); + setbits32(&immap->im_cpmux.cmx_scr,0x0000001b); + + iounmap(immap); +} + static int mpc8272ads_platform_notify(struct device *dev) { static const struct platform_notify_dev_map dev_map[] = { @@ -209,6 +282,10 @@ static int mpc8272ads_platform_notify(struct device *dev) .rtn = mpc8272ads_fixup_enet_pdata }, { + .bus_id = "fsl-cpm-scc:uart", + .rtn = mpc + }, + { .bus_id = NULL } }; @@ -230,7 +307,44 @@ int __init mpc8272ads_init(void) ppc_sys_device_enable(MPC82xx_CPM_FCC1); ppc_sys_device_enable(MPC82xx_CPM_FCC2); + /* to be ready for console, let's attach pdata here */ +#ifdef CONFIG_SERIAL_CPM_SCC1 + ppc_sys_device_setfunc(MPC82xx_CPM_SCC1, PPC_SYS_FUNC_UART); + ppc_sys_device_enable(MPC82xx_CPM_SCC1); + +#endif + +#ifdef CONFIG_SERIAL_CPM_SCC4 + ppc_sys_device_setfunc(MPC82xx_CPM_SCC4, PPC_SYS_FUNC_UART); + ppc_sys_device_enable(MPC82xx_CPM_SCC4); +#endif + + return 0; } +/* + To prevent confusion, console selection is gross: + by 0 assumed SCC1 and by 1 assumed SCC4 + */ +struct platform_device* early_uart_get_pdev(int index) +{ + bd_t *bd = (bd_t *) __res; + struct fs_uart_platform_info *pinfo; + + struct platform_device* pdev = NULL; + if(index) { /*assume SCC4 here*/ + pdev = &ppc_sys_platform_devices[MPC82xx_CPM_SCC4]; + pinfo = &mpc8272<F12>_uart_pdata[1]; + } else { /*over SCC1*/ + pdev = &ppc_sys_platform_devices[MPC82xx_CPM_SCC1]; + pinfo = &mpc8272_uart_pdata[0]; + } + + pinfo->uart_clk = bd->bi_intfreq; + pdev->dev.platform_data = pinfo; + ppc_sys_fixup_mem_resource(pdev, IMAP_ADDR); + return NULL; +} + arch_initcall(mpc8272ads_init); diff --git a/arch/ppc/platforms/mpc866ads_setup.c b/arch/ppc/platforms/mpc866ads_setup.c index ac8fcc6..6ce3b84 100644 --- a/arch/ppc/platforms/mpc866ads_setup.c +++ b/arch/ppc/platforms/mpc866ads_setup.c @@ -20,6 +20,7 @@ #include <linux/device.h> #include <linux/fs_enet_pd.h> +#include <linux/fs_uart_pd.h> #include <linux/mii.h> #include <asm/delay.h> @@ -37,6 +38,11 @@ extern unsigned char __res[]; +static void setup_fec1_ioports(void); +static void setup_scc1_ioports(void); +static void setup_smc1_ioports(void); +static void setup_smc2_ioports(void); + static struct fs_mii_bus_info fec_mii_bus_info = { .method = fsmii_fec, .id = 0, @@ -79,6 +85,28 @@ static struct fs_platform_info mpc8xx_scc_pdata = { .phy_irq = -1, .bus_info = &scc_mii_bus_info, + +}; + +static struct fs_uart_platform_info mpc866_uart_pdata[] = { + [fsid_smc1_uart] = { + .brg = 1, + .fs_no = fsid_smc1_uart, + .init_ioports = setup_smc1_ioports, + .tx_num_fifo = 4, + .tx_buf_size = 32, + .rx_num_fifo = 4, + .rx_buf_size = 32, + }, + [fsid_smc2_uart] = { + .brg = 2, + .fs_no = fsid_smc2_uart, + .init_ioports = setup_smc2_ioports, + .tx_num_fifo = 4, + .tx_buf_size = 32, + .rx_num_fifo = 4, + .rx_buf_size = 32, + }, }; void __init board_init(void) @@ -92,9 +120,12 @@ void __init board_init(void) printk(KERN_CRIT "Could not remap BCSR1\n"); return; } + #ifdef CONFIG_SERIAL_CPM_SMC1 cp->cp_simode &= ~(0xe0000000 >> 17); /* brg1 */ clrbits32(bcsr_io,(0x80000000 >> 7)); + cp->cp_smc[0].smc_smcm |= (SMCM_RX | SMCM_TX); + cp->cp_smc[0].smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN); #else setbits32(bcsr_io,(0x80000000 >> 7)); @@ -108,6 +139,8 @@ void __init board_init(void) cp->cp_simode &= ~(0xe0000000 >> 1); cp->cp_simode |= (0x20000000 >> 1); /* brg2 */ clrbits32(bcsr_io,(0x80000000 >> 13)); + cp->cp_smc[1].smc_smcm |= (SMCM_RX | SMCM_TX); + cp->cp_smc[1].smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN); #else clrbits32(bcsr_io,(0x80000000 >> 13)); cp->cp_pbpar &= ~(0x00000c00); @@ -232,6 +265,74 @@ static void mpc866ads_fixup_scc_enet_pdata(struct platform_device *pdev, mpc866ads_fixup_enet_pdata(pdev, fsid_scc1 + pdev->id - 1); } +static void setup_smc1_ioports(void) +{ + immap_t *immap = (immap_t *) IMAP_ADDR; + unsigned *bcsr_io; + unsigned int iobits = 0x000000c0; + + bcsr_io = ioremap(BCSR1, sizeof(unsigned long)); + + if (bcsr_io == NULL) { + printk(KERN_CRIT "Could not remap BCSR1\n"); + return; + } + + clrbits32(bcsr_io,BCSR1_RS232EN_1); + iounmap(bcsr_io); + + setbits32(&immap->im_cpm.cp_pbpar, iobits); + clrbits32(&immap->im_cpm.cp_pbdir, iobits); + clrbits16(&immap->im_cpm.cp_pbodr, iobits); + +} + +static void setup_smc2_ioports(void) +{ + immap_t *immap = (immap_t *) IMAP_ADDR; + unsigned *bcsr_io; + unsigned int iobits = 0x00000c00; + + bcsr_io = ioremap(BCSR1, sizeof(unsigned long)); + + if (bcsr_io == NULL) { + printk(KERN_CRIT "Could not remap BCSR1\n"); + return; + } + + clrbits32(bcsr_io,BCSR1_RS232EN_2); + + iounmap(bcsr_io); + +#ifndef CONFIG_SERIAL_CPM_ALT_SMC2 + setbits32(&immap->im_cpm.cp_pbpar, iobits); + clrbits32(&immap->im_cpm.cp_pbdir, iobits); + clrbits16(&immap->im_cpm.cp_pbodr, iobits); +#else + setbits16(&immap->im_ioport.iop_papar, iobits); + clrbits16(&immap->im_ioport.iop_padir, iobits); + clrbits16(&immap->im_ioport.iop_paodr, iobits); +#endif + +} + +static void __init mpc866ads_fixup_uart_pdata(struct platform_device *pdev, + int idx) +{ + bd_t *bd = (bd_t *) __res; + struct fs_uart_platform_info *pinfo; + int num = ARRAY_SIZE(mpc866_uart_pdata); + + int id = fs_uart_id_smc2fsid(idx); + + /* no need to alter anything if console */ + if ((id <= num) && (!pdev->dev.platform_data)) { + pinfo = &mpc866_uart_pdata[id]; + pinfo->uart_clk = bd->bi_intfreq; + pdev->dev.platform_data = pinfo; + } +} + static int mpc866ads_platform_notify(struct device *dev) { static const struct platform_notify_dev_map dev_map[] = { @@ -244,6 +345,10 @@ static int mpc866ads_platform_notify(struct device *dev) .rtn = mpc866ads_fixup_scc_enet_pdata, }, { + .bus_id = "fsl-cpm-smc:uart", + .rtn = mpc866ads_fixup_uart_pdata + }, + { .bus_id = NULL } }; @@ -267,7 +372,42 @@ int __init mpc866ads_init(void) #endif ppc_sys_device_enable(MPC8xx_CPM_FEC1); +/* Since either of the uarts could be used as console, they need to ready */ +#ifdef CONFIG_SERIAL_CPM_SMC1 + ppc_sys_device_enable(MPC8xx_CPM_SMC1); + ppc_sys_device_setfunc(MPC8xx_CPM_SMC1, PPC_SYS_FUNC_UART); +#endif + +#ifdef CONFIG_SERIAL_CPM_SMCer + ppc_sys_device_enable(MPC8xx_CPM_SMC2); + ppc_sys_device_setfunc(MPC8xx_CPM_SMC2, PPC_SYS_FUNC_UART); +#endif + return 0; } +/* + To prevent confusion, console selection is gross: + by 0 assumed SMC1 and by 1 assumed SMC2 + */ +struct platform_device* early_uart_get_pdev(int index) +{ + bd_t *bd = (bd_t *) __res; + struct fs_uart_platform_info *pinfo; + + struct platform_device* pdev = NULL; + if(index) { /*assume SMC2 here*/ + pdev = &ppc_sys_platform_devices[MPC8xx_CPM_SMC2]; + pinfo = &mpc866_uart_pdata[1]; + } else { /*over SMC1*/ + pdev = &ppc_sys_platform_devices[MPC8xx_CPM_SMC1]; + pinfo = &mpc866_uart_pdata[0]; + } + + pinfo->uart_clk = bd->bi_intfreq; + pdev->dev.platform_data = pinfo; + ppc_sys_fixup_mem_resource(pdev, IMAP_ADDR); + return NULL; +} + arch_initcall(mpc866ads_init); diff --git a/arch/ppc/platforms/mpc885ads_setup.c b/arch/ppc/platforms/mpc885ads_setup.c index 50a99e5..4b88679 100644 --- a/arch/ppc/platforms/mpc885ads_setup.c +++ b/arch/ppc/platforms/mpc885ads_setup.c @@ -20,6 +20,7 @@ #include <linux/device.h> #include <linux/fs_enet_pd.h> +#include <linux/fs_uart_pd.h> #include <linux/mii.h> #include <asm/delay.h> @@ -35,9 +36,32 @@ #include <asm/ppc_sys.h> extern unsigned char __res[]; +static void setup_smc1_ioports(void); +static void setup_smc2_ioports(void); static void __init mpc885ads_scc_phy_init(char); +static struct fs_uart_platform_info mpc885_uart_pdata[] = { + [fsid_smc1_uart] = { + .brg = 1, + .fs_no = fsid_smc1_uart, + .init_ioports = setup_smc1_ioports, + .tx_num_fifo = 4, + .tx_buf_size = 32, + .rx_num_fifo = 4, + .rx_buf_size = 32, + }, + [fsid_smc2_uart] = { + .brg = 2, + .fs_no = fsid_smc2_uart, + .init_ioports = setup_smc2_ioports, + .tx_num_fifo = 4, + .tx_buf_size = 32, + .rx_num_fifo = 4, + .rx_buf_size = 32, + }, +}; + static struct fs_mii_bus_info fec_mii_bus_info = { .method = fsmii_fec, .id = 0, @@ -116,6 +140,8 @@ void __init board_init(void) #ifdef CONFIG_SERIAL_CPM_SMC1 cp->cp_simode &= ~(0xe0000000 >> 17); /* brg1 */ clrbits32(bcsr_io, BCSR1_RS232EN_1); + cp->cp_smc[0].smc_smcm |= (SMCM_RX | SMCM_TX); + cp->cp_smc[0].smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN); #else setbits32(bcsr_io,BCSR1_RS232EN_1); cp->cp_smc[0].smc_smcmr = 0; @@ -126,6 +152,8 @@ void __init board_init(void) cp->cp_simode &= ~(0xe0000000 >> 1); cp->cp_simode |= (0x20000000 >> 1); /* brg2 */ clrbits32(bcsr_io,BCSR1_RS232EN_2); + cp->cp_smc[1].smc_smcm |= (SMCM_RX | SMCM_TX); + cp->cp_smc[1].smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN); #else setbits32(bcsr_io,BCSR1_RS232EN_2); cp->cp_smc[1].smc_smcmr = 0; @@ -343,6 +371,70 @@ static void mpc885ads_scc_phy_init(char phy_addr) out_be32(&fecp->fec_mii_speed, 0); } +static void setup_smc1_ioports(void) +{ + immap_t *immap = (immap_t *) IMAP_ADDR; + unsigned *bcsr_io; + unsigned int iobits = 0x000000c0; + + bcsr_io = ioremap(BCSR1, sizeof(unsigned long)); + + if (bcsr_io == NULL) { + printk(KERN_CRIT "Could not remap BCSR1\n"); + return; + } + clrbits32(bcsr_io,BCSR1_RS232EN_1); + iounmap(bcsr_io); + + setbits32(&immap->im_cpm.cp_pbpar, iobits); + clrbits32(&immap->im_cpm.cp_pbdir, iobits); + clrbits16(&immap->im_cpm.cp_pbodr, iobits); +} + +static void setup_smc2_ioports(void) +{ + immap_t *immap = (immap_t *) IMAP_ADDR; + unsigned *bcsr_io; + unsigned int iobits = 0x00000c00; + + bcsr_io = ioremap(BCSR1, sizeof(unsigned long)); + + if (bcsr_io == NULL) { + printk(KERN_CRIT "Could not remap BCSR1\n"); + return; + } + clrbits32(bcsr_io,BCSR1_RS232EN_2); + iounmap(bcsr_io); + +#ifndef CONFIG_SERIAL_CPM_ALT_SMC2 + setbits32(&immap->im_cpm.cp_pbpar, iobits); + clrbits32(&immap->im_cpm.cp_pbdir, iobits); + clrbits16(&immap->im_cpm.cp_pbodr, iobits); +#else + setbits16(&immap->im_ioport.iop_papar, iobits); + clrbits16(&immap->im_ioport.iop_padir, iobits); + clrbits16(&immap->im_ioport.iop_paodr, iobits); +#endif +} + +static void __init mpc885ads_fixup_uart_pdata(struct platform_device *pdev, + int idx) +{ + bd_t *bd = (bd_t *) __res; + struct fs_uart_platform_info *pinfo; + int num = ARRAY_SIZE(mpc885_uart_pdata); + + int id = fs_uart_id_smc2fsid(idx); + + /* no need to alter anything if console */ + if ((id <= num) && (!pdev->dev.platform_data)) { + pinfo = &mpc885_uart_pdata[id]; + pinfo->uart_clk = bd->bi_intfreq; + pdev->dev.platform_data = pinfo; + } +} + + static int mpc885ads_platform_notify(struct device *dev) { @@ -356,12 +448,17 @@ static int mpc885ads_platform_notify(struct device *dev) .rtn = mpc885ads_fixup_scc_enet_pdata, }, { + .bus_id = "fsl-cpm-smc:uart", + .rtn = mpc885ads_fixup_uart_pdata + }, + { .bus_id = NULL } }; platform_notify_map(dev_map,dev); + return 0; } int __init mpc885ads_init(void) @@ -383,7 +480,41 @@ int __init mpc885ads_init(void) ppc_sys_device_enable(MPC8xx_CPM_FEC2); #endif +#ifdef CONFIG_SERIAL_CPM_SMC1 + ppc_sys_device_enable(MPC8xx_CPM_SMC1); + ppc_sys_device_setfunc(MPC8xx_CPM_SMC1, PPC_SYS_FUNC_UART); +#endif + +#ifdef CONFIG_SERIAL_CPM_SMC2 + ppc_sys_device_enable(MPC8xx_CPM_SMC2); + ppc_sys_device_setfunc(MPC8xx_CPM_SMC2, PPC_SYS_FUNC_UART); +#endif return 0; } arch_initcall(mpc885ads_init); + +/* + To prevent confusion, console selection is gross: + by 0 assumed SMC1 and by 1 assumed SMC2 + */ +struct platform_device* early_uart_get_pdev(int index) +{ + bd_t *bd = (bd_t *) __res; + struct fs_uart_platform_info *pinfo; + + struct platform_device* pdev = NULL; + if(index) { /*assume SMC2 here*/ + pdev = &ppc_sys_platform_devices[MPC8xx_CPM_SMC2]; + pinfo = &mpc885_uart_pdata[1]; + } else { /*over SMC1*/ + pdev = &ppc_sys_platform_devices[MPC8xx_CPM_SMC1]; + pinfo = &mpc885_uart_pdata[0]; + } + + pinfo->uart_clk = bd->bi_intfreq; + pdev->dev.platform_data = pinfo; + ppc_sys_fixup_mem_resource(pdev, IMAP_ADDR); + return NULL; +} + diff --git a/arch/ppc/platforms/pq2ads.c b/arch/ppc/platforms/pq2ads.c index 3365fd7..7fc2e02 100644 --- a/arch/ppc/platforms/pq2ads.c +++ b/arch/ppc/platforms/pq2ads.c @@ -14,11 +14,40 @@ #include <linux/init.h> +#include <asm/io.h> #include <asm/mpc8260.h> +#include <asm/cpm2.h> +#include <asm/immap_cpm2.h> void __init m82xx_board_setup(void) { + cpm2_map_t* immap = ioremap(CPM_MAP_ADDR, sizeof(cpm2_map_t)); + u32 *bcsr = ioremap(BCSR_ADDR+4, sizeof(u32)); + /* Enable the 2nd UART port */ - *(volatile uint *)(BCSR_ADDR + 4) &= ~BCSR1_RS232_EN2; + clrbits32(bcsr, BCSR1_RS232_EN2); + +#ifdef CONFIG_SERIAL_CPM_SCC1 + clrbits32((u32*)&immap->im_scc[0].scc_sccm, UART_SCCM_TX | UART_SCCM_RX); + clrbits32((u32*)&immap->im_scc[0].scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT); +#endif + +#ifdef CONFIG_SERIAL_CPM_SCC2 + clrbits32((u32*)&immap->im_scc[1].scc_sccm, UART_SCCM_TX | UART_SCCM_RX); + clrbits32((u32*)&immap->im_scc[1].scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT); +#endif + +#ifdef CONFIG_SERIAL_CPM_SCC3 + clrbits32((u32*)&immap->im_scc[2].scc_sccm, UART_SCCM_TX | UART_SCCM_RX); + clrbits32((u32*)&immap->im_scc[2].scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT); +#endif + +#ifdef CONFIG_SERIAL_CPM_SCC4 + clrbits32((u32*)&immap->im_scc[3].scc_sccm, UART_SCCM_TX | UART_SCCM_RX); + clrbits32((u32*)&immap->im_scc[3].scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT); +#endif + + iounmap(bcsr); + iounmap(immap); } |