From: Jing Huang Date: Fri, 9 Jul 2010 02:54:39 +0000 (-0700) Subject: [SCSI] bfa: fix chip and memory initialization X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=df2a52a6c8c4995e0bec0b739ddb2f51664837dd;p=linux-beck.git [SCSI] bfa: fix chip and memory initialization Clear PSS memory reset that is set as part of power-on-reset (pci reset). Complete PMM memory reset before BISTR start. Clear EDRAM BISTR start bit after fixed delay. BISTR DONE bit status is not getting set. Use a fixed 1ms delay for BISTR now. Expose PMM IT memory definitions to host. Signed-off-by: Jing Huang Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/bfa/bfa_ioc_ct.c b/drivers/scsi/bfa/bfa_ioc_ct.c index 17bd1513b34e..68f027da001e 100644 --- a/drivers/scsi/bfa/bfa_ioc_ct.c +++ b/drivers/scsi/bfa/bfa_ioc_ct.c @@ -376,10 +376,35 @@ bfa_ioc_ct_pll_init(struct bfa_ioc_s *ioc) bfa_reg_write(ioc->ioc_regs.app_pll_fast_ctl_reg, pll_fclk | __APP_PLL_425_ENABLE); + /** + * PSS memory reset is asserted at power-on-reset. Need to clear + * this before running EDRAM BISTR + */ + if (ioc->cna) { + bfa_reg_write((rb + PMM_1T_RESET_REG_P0), __PMM_1T_RESET_P); + bfa_reg_write((rb + PMM_1T_RESET_REG_P1), __PMM_1T_RESET_P); + } + + r32 = bfa_reg_read((rb + PSS_CTL_REG)); + r32 &= ~__PSS_LMEM_RESET; + bfa_reg_write((rb + PSS_CTL_REG), r32); + bfa_os_udelay(1000); + + if (ioc->cna) { + bfa_reg_write((rb + PMM_1T_RESET_REG_P0), 0); + bfa_reg_write((rb + PMM_1T_RESET_REG_P1), 0); + } + bfa_reg_write((rb + MBIST_CTL_REG), __EDRAM_BISTR_START); bfa_os_udelay(1000); r32 = bfa_reg_read((rb + MBIST_STAT_REG)); bfa_trc(ioc, r32); + + /** + * Clear BISTR + */ + bfa_reg_write((rb + MBIST_CTL_REG), 0); + /* * release semaphore. */ diff --git a/drivers/scsi/bfa/include/bfi/bfi_ctreg.h b/drivers/scsi/bfa/include/bfi/bfi_ctreg.h index 57a8497105af..c0ef5a93b797 100644 --- a/drivers/scsi/bfa/include/bfi/bfi_ctreg.h +++ b/drivers/scsi/bfa/include/bfi/bfi_ctreg.h @@ -455,6 +455,9 @@ enum { #define __PSS_LPU0_RAM_ERR 0x00000001 #define ERR_SET_REG 0x00018818 #define __PSS_ERR_STATUS_SET 0x003fffff +#define PMM_1T_RESET_REG_P0 0x0002381c +#define __PMM_1T_RESET_P 0x00000001 +#define PMM_1T_RESET_REG_P1 0x00023c1c #define HQM_QSET0_RXQ_DRBL_P0 0x00038000 #define __RXQ0_ADD_VECTORS_P 0x80000000 #define __RXQ0_STOP_P 0x40000000